CN101618732B - Collapsible pushchair - Google Patents

Abstract

The present invention provides a foldable baby stroller, which has high safety, light weight and compact structure, and can adjust the shoulder straps according to the growth of the baby's body, and has good seating comfort on the seat part for the baby to sit on. A foldable stroller (1) has a seat portion (45) for an infant to ride on, a skeleton portion (10a) etc. supporting the seat portion (45), a pair of shoulder belt portions (8a) etc., and a rotatable wheel portion ( 18a) etc. and a pair of gripping parts (2a) etc., the seat part (45) comprises a detachable elastic seat part (47) with cushioning properties and a seat supporting part (13) supporting the elastic seat part (47), A pair of shoulder belt parts (8a) etc. can be arranged on the elastic seat part through many pairs of shoulder belt holes (4) etc. which are arranged on the back seat support part (44) of the seat support part (13) according to the build of infants and young children. Many pairs of shoulder strap height adjustment holes (21) on the head protection elastic part (7) of (47) are adjusted.

Description

pushchair

technical field

The present invention relates to, for example, a foldable stroller for infants or the like.

Background technique

Conventionally, baby carriages for infants and the like have been used. Furthermore, among such strollers, a so-called foldable stroller that can be compactly folded when not in use and is light in weight is popular because it is easy to carry and saves space in a storage place. This foldable stroller has a pair of left and right grips, front, rear, left and right wheels, a pair of front wheel axles rotatably connected to the left and right front wheels, and a pair of rear wheel axles similarly connected to the left and right rear wheels. department. Also, in a side view, the rear axle portion obliquely supports the front axle portion. When folding this foldable stroller, make the left and right pair of handle parts, front wheel shaft part, rear wheel shaft part, front wheel, rear wheel overlap on the direction that makes left and right space narrow respectively, and make the front wheel shaft part toward the direction of the handle part. Turn in the direction so that the rear axle portion and the front axle portion are approximately on the same line, thereby allowing compact storage. In addition, such a baby carriage can be stored standing by itself while supporting weight in a folded state. That is, such a stroller has standing legs protruding out after being folded, and supports the weight of the stroller by the standing legs and the rear wheels or front wheels, so that the stroller can be stored standing by itself. In addition, since the grip portion is just like the handle of an umbrella in the folded state, it is sometimes called an umbrella shape. Or, this kind of foldable stroller which is compact in folded state, light in weight, easy to carry, and has a small storage space is sometimes called a lightweight stroller. (e.g. Patent Document 1 and Patent Document 2)

Patent Document 1: Japanese Patent Application Laid-Open No. 2006-290213 (FIGS. 1 and 2, etc.)

Patent Document 2: Japanese Patent No. 3494630 (FIGS. 1 to 3, etc.)

Since such foldable baby carriages are light in weight and compact, the cushioning performance of the seat portion on which the infant sits is often insufficient, and the riding comfort is not good. In addition, there are cases where the infant protrudes out and is injured due to the movement of the infant who is not able to cope with the movement of the seated infant or the unevenness of the road surface when walking. Therefore, usually, the seat part of the pushchair is provided with a pair of shoulder straps arranged on the left and right shoulders from the back side and a front crotch strap arranged on the front crotch part. The pair of shoulder straps and the front crotch strap are fixed to the abdomen of the infant, thereby fixing the body of the infant to the seat. However, there are problems such as that the height of the shoulder girdle cannot be adjusted according to the physical growth of the infant, and it is difficult to fix it at an optimal position.

Contents of the invention

The object of the present invention is to provide a kind of folding stroller, the seat portion for infants and young children of this folding type stroller has good riding comfort, and can adjust the shoulder straps etc. according to the physical growth of infants, and is safe Tall, light and compact.

The above-mentioned subject is achieved by a first means, which is a foldable stroller characterized by including: a seat portion on which an infant rides; a pair of shoulder straps; a skeleton portion supporting the seat portion; a rotatable wheel portion having a pair of front wheel portions and a pair of rear wheel portions; A detachable and cushioned elastic seat portion for the infant to sit on, and a seat support portion for supporting the elastic seat portion, the elastic seat portion has at least a head part for protecting the infant. a head protection elastic part, and a buttock protection elastic part which protects the buttocks of the infant; The rear seat support portion on the back side of the infant and the buttock seat support portion on the buttock side of the infant on which the buttock protection elastic portion is arranged and supports the infant when the infant is seated, the skeleton portion has: a pair of side shafts extending from the pair of grips and mainly supporting the back seat support; a pair of front wheel shafts supporting the front wheels; and a pair of rear wheel shafts supporting the rear wheels. part; the bottom surface is configured with a skeleton part, which maintains the width of a pair of front wheel shaft parts and the width of a pair of rear wheel shaft parts through the width of the buttock seat support part in use, and makes a pair of said rear wheel shaft parts when folded. The width of the front wheel shaft portion and the width of the pair of rear wheel shaft portions are kept narrow; and the rear side is provided with a frame portion that holds a pair of side shafts by the width of the rear seat support portion in use. part and a pair of rear wheel shaft parts, when folded, the width of the pair of side shaft parts and the width of the pair of rear wheel shaft parts are kept in a narrow state, and the pair of shoulder strap parts can be according to the The body shape of infants is adjusted through multiple pairs of shoulder strap holes arranged on the back seat support part and multiple pairs of shoulder strap height adjustment holes arranged on the elastic part of the head protection. The adjustment of the shoulder belt portion can adjust the relative position of the height of the head guard elastic portion with respect to the hip seat support portion.

According to the above configuration, the pushchair includes a seat portion on which an infant rides, a pair of shoulder straps for restraining shoulder portions of the infant, a frame portion supporting the seat, a wheel portion, and a grip portion.

The frame portion of the foldable stroller has a pair of side shaft portions, a pair of rear wheel shaft portions, a pair of front wheel shaft portions, a bottom-side arrangement frame portion, and a rear-side arrangement frame portion.

Moreover, the bottom surface configuration skeleton part maintains the width of the buttocks seat support part during use, and maintains it in a narrowed state when folded; status is maintained. Therefore, the user can compactly store the pushchair when it is folded.

In addition, the seat portion has a detachable elastic seat portion having cushioning properties when the infant sits on the seat, and a seat support portion that supports the elastic seat portion.

Therefore, when an infant is seated, the seating comfort of the seat portion is improved.

Furthermore, according to the above structure, the elastic seat part has the head protection elastic part which protects the head part of an infant when an infant sits, and the buttocks protection elastic part which protects the buttocks part of an infant.

Therefore, even if the baby's body shakes due to unevenness and shaking of the road surface during walking, the buttocks protective elastic part and the head protective elastic part can prevent the body from being injured by bumping into the skeleton part in advance.

In addition, since the head protection elastic part and the buttocks protection elastic part can also be directly arranged on the seat support part, if the seat support part is made of a material with good air permeability, etc., it can become air-permeable for an infant sitting on the seat. Good structure with good ride comfort.

In addition, according to the above structure, the pair of shoulder straps can be adjusted in height according to the body shape of the infant through multiple pairs of shoulder strap holes provided on the back seat support part and multiple pairs of shoulder straps provided on the head protection elastic part. hole to adjust.

That is, by setting the plurality of pairs of shoulder strap holes of the back seat support part and the plurality of pairs of shoulder strap height adjustment holes of the head protection elastic part, and combining the plurality of pairs of shoulder strap holes and the plurality of pairs of shoulder strap height adjustment holes, it is possible to The height of a pair of shoulder straps arranged on the left and right shoulders of the infant is adjusted.

Therefore, the height of the shoulder straps can be adjusted according to the size of the infant sitting on the seat. Even if the shoulders are located above the infant's buttocks, the shoulder straps can be arranged according to the shoulders of the infant.

That is to say, the shoulder straps can be adjusted according to the growth of the infant, so as to be fixed at an optimal position, so the safety is high.

Furthermore, according to the above configuration, it is possible to adjust the relative position of the height of the head guard elastic portion with respect to the buttocks seat support portion.

Therefore, when adjusting the height of the shoulder girdle according to the growth of the infant, it is possible to adjust the relative height of the head protecting elastic part with respect to the buttock protecting elastic part.

A preferred second aspect is that, in the structure of the first aspect, the elastic seat portion further includes: a backrest elastic portion disposed between the back seat support portion and the head protection elastic portion to elastically support the seat. the dorsal side of the infant; and a seat surface elastic portion disposed between the buttock seat support portion and the buttock protection elastic portion to elastically support the buttock side of the seated infant, The backrest elastic portion has a plurality of pairs of shoulder strap through holes provided at positions corresponding to the plurality of pairs of the shoulder strap holes of the rear seat support portion, and a pair of the shoulder straps passes through the plurality of pairs of the shoulder straps. Holes and multiple pairs of shoulder strap through holes, through multiple pairs of shoulder strap height adjustment holes, a pair of shoulder straps can be adjusted.

According to the above configuration, the elastic seat portion further includes the back elastic portion elastically supporting the back side of the seated infant and the seat surface elastic portion elastically supporting the buttock side of the infant. Furthermore, shoulder belt through holes are provided on the backrest elastic portion at positions corresponding to the plurality of pairs of shoulder belt holes of the back seat support portion. Therefore, it is possible to adjust the height by passing the shoulder strap portion through the shoulder strap hole and the shoulder strap through hole, and through the shoulder strap height adjustment hole provided on the head protection elastic member. Furthermore, since the elastic seat part further has the backrest elastic part and the seat surface elastic part, the riding comfort of infants and young children is improved, and the heat retention property in cold seasons etc. is good.

A preferred third solution is that, in the structure of the first or second solution, a protruding preventing portion for preventing the head portion of the infant from protruding laterally is provided on the pair of side shaft parts, so The head protection elastic part has a pair of side head protection elastic parts for protecting the side head part of the infant, and the side head protection elastic parts are arranged in the vicinity of the protruding preventing part.

According to the above configuration, the foldable stroller has the protruding prevention portion provided on the pair of side shaft portions and the pair of side head protection elastic portions for protecting the side head portion of the infant. Furthermore, the side head protection elastic part is arranged in the vicinity of the protruding prevention part.

Therefore, even if the head and other body of the infant shakes greatly laterally due to unevenness of the road surface during walking, especially when lateral shaking occurs, the protrusion preventing portion can prevent lateral protrusion. And the side head protection elastic part is adjusted and arrange|positioned in the vicinity of this protruding prevention part. Therefore, even in the unlikely event that the head portion of the infant hits the protruding preventing portion heavily, it can be cushioned by the side head protection elastic portion. Therefore, it is possible to prevent infants from protruding laterally, and to prevent accidental injuries in advance.

A preferred fourth aspect is that, in the structure of any one of the first to third aspects, there is a device detachably attached to the vicinity of the pair of gripping parts and the pair of protruding prevention parts. A sunshade part, the sunshade part has: at least two substantially inverted U-shaped bone parts; a first covering part stretched between the substantially inverted U-shaped bone parts; The second covering part that covers the vicinity of the substantially inverted U-shaped bone part and the upper edge of the backrest elastic part, the sunshade part can be placed on the sunshade part of the protruding prevention part The mounting position is rotated, and has a multi-stage holding position, and the multi-stage holding position includes at least a position where the second covering part of the sunshade part is folded and the first covering part is unfolded.

According to the above configuration, the pushchair has a detachably attached sunshade. The sunshade can be rotated at the installation position of the sunshade on the protruding prevention part. Moreover, the sunshade has at least two substantially inverted U-shaped bone parts, a first covering part stretched between these substantially inverted U-shaped bone parts, and a pair of substantially inverted U-shaped ribs installed near a pair of gripping parts. The second covering part that covers between the bone part of the backrest and the vicinity of the upper edge of the elastic part of the backrest. Furthermore, the sunshade has a plurality of holding positions including at least a position where the second covering portion of the sunshading portion is folded and the first covering portion is unfolded.

Therefore, when the user places the baby in the pushchair and wishes to avoid sunlight, the sunshade can be attached and used. In addition, the sunshade is made to be able to rotate at the installation position of the sunshade of the protruding prevention part, and has multi-level holding positions, so the position covered by the sunshade can be adjusted according to the intensity of the sun and the direction of the sun. .

A preferred fifth solution is that, in the structure of any one of the first to fourth solutions, the rear wheel shaft part supports the side shaft part from the rear and the side shaft part is provided on the extension line of the side shaft part. The front axle portion is continuously arranged, and the end portion of the rear axle portion on which the rear wheel portion is located faces a direction away from the front wheel portion, and when viewed from the side, the rear axle portion has a flat, roughly The shape of the S-curve.

According to the above configuration, the end portion of the rear wheel shaft portion on which the rear wheel portion is provided faces away from the front wheel portion, and the rear wheel shaft portion has a gentle, substantially S-shaped curve when viewed from the side. Furthermore, the rear axle portion is provided continuously so as to support the side axle portion and the front axle portion provided on the extension line of the side axle portion from the rear.

Therefore, by increasing the distance between the rear wheel portion and the front wheel portion, the center of gravity of the pushchair can be prevented from being too close to the front wheel portion when the hold portion is held to walk the pushchair, and the position of the center of gravity of the pushchair can be adjusted. Located in a low position, it can increase the sense of stability and ease of use.

A preferred sixth aspect is that, in the structure of any one of the first to fifth aspects, the user can hold the foldable infant by pulling up the moving belt portion in a manner close to the gripping portion. The folding structure of the car.

According to the above configuration, the user can fold the pushchair without squatting down, so it is very convenient when the user is tall or holds luggage.

Invention effect

According to the present invention, although it is a light and compact folding stroller, since the seat portion has a cushioning elastic seat portion for the infant to sit on and a seat support portion for supporting the elastic seat portion, it is suitable for infants and young children. The ride comfort of the seating part is good. In addition, the shoulder straps can pass through multiple pairs of shoulder strap holes and multiple pairs of shoulder strap through holes provided on the back seat support part and the backrest elastic part and multiple pairs of shoulder strap through holes provided on the head protection elastic part according to the growth of the infant's body. The height adjustment hole of the shoulder strap can be adjusted, so the safety is high. Furthermore, since the elastic seat part has the buttocks protective elastic part and the head protective elastic part, it is possible to prevent danger to infants in advance.

Description of drawings

FIG. 1 is a schematic perspective view showing the main structure of the pushchair of the present embodiment.

Fig. 2 is a schematic rear view showing the main structure of the pushchair of the present embodiment.

Fig. 3 is a schematic perspective view of the pushchair showing a state in which the canopy portion and the forward tilt preventing portion shown in Figs. 1 and 2 are removed.

Fig. 4 is an explanatory schematic diagram for explaining the relationship between the headrest section, the hip section, etc., and the backrest cushion section and the backrest support section in Fig. 3 .

Fig. 5 is an explanatory schematic view for explaining the relationship between the headrest section, the buttocks section, and the like in Fig. 3 , and the backrest cushion section and the backrest support section.

Fig. 6 is an explanatory schematic view for explaining the relationship between the headrest section, the hip section, etc., and the backrest cushion section and the backrest support section in Fig. 3 .

Fig. 7 is an explanatory schematic diagram for explaining the relationship between the headrest section, the buttocks section, and the like in Fig. 3 , and the backrest cushion section and the backrest support section.

Fig. 8 is an explanatory diagram for explaining a state in which a canopy is attached to the pushchair shown in Fig. 3 .

Fig. 9 is an explanatory diagram for explaining a state where a canopy is attached to the pushchair of Fig. 3 .

Fig. 10 is an explanatory schematic diagram for explaining a state in which a canopy is attached to the pushchair shown in Fig. 3 .

Fig. 11 is an explanatory schematic diagram for explaining a state of use of the canopy.

Fig. 12 is an explanatory schematic diagram for explaining a state of use of the canopy.

Fig. 13 is an explanatory schematic diagram for explaining a state of use of the canopy.

Fig. 14 is a schematic side view of the foldable stroller of the present embodiment.

Fig. 15 is a schematic side view of a conventional foldable stroller.

Fig. 16 is an explanatory schematic diagram for explaining a folded state of the foldable stroller of the present embodiment.

Fig. 17 is an explanatory schematic diagram for explaining a folded state of the foldable stroller of the present embodiment.

Fig. 18 is an explanatory schematic diagram of a fixing portion for fixing the head protection pad and the buttock protection pad to the seat support portion.

Fig. 19 is an explanatory schematic diagram of a fixing portion provided on the back side of the head protection pad portion and the buttock protection pad portion for fixing to the seat support portion.

Fig. 20 is an explanatory schematic diagram of an observation window provided on the canopy of the folding stroller according to the present embodiment.

Fig. 21 is an explanatory schematic diagram of an observation window provided on the canopy of the folding stroller according to the present embodiment.

Fig. 22 is an explanatory schematic diagram of an observation window provided on the canopy of the foldable stroller according to the present embodiment.

Explanation of reference signs

1 pushchair

2a, 2b holding part

3 back cushion

4a, 4b The first through hole of the shoulder strap of the supporting part

5 rear head protection pad

6 side head protectors

7Head protector

8a, 8b shoulder straps

9a, 9b side protruding prevention part

10a, 10b side shaft

11 hip protectors

12 face

13 seat support department

14a, 14b front wheel shaft

15 base width support part

16 feet

17a, 17b rear wheel axle

18a, 18b front wheel part

19a, 19b rear wheel part

20 front crotch belt

20a front crotch belt through part

21a, 21b The first through hole of the head protection shoulder strap

22 forward tilt prevention part

23 canopy

24 The first skeleton part

25 second skeleton part

26 The first canopy

27 The second canopy

28 canopy width adjustment department

29a, 29b canopy assembly and disassembly locking support part

30 storage department

31 Self-standing bracket part

32 width holding release lever

33 Width holding part

34a, 34b the second through hole of the shoulder strap of the supporting part

35 back width support part

36a, 36b, 36c canopy position fixing part

37 Canopy Installation Department

38a, 38b The second through hole of the head protection shoulder strap

39 Hip center protector

40 hip protection pad

41 link

42a, 42b canopy assembly and disassembly department

43 Canopy assembly and disassembly fixing part

44 backrest support

45 seat department

46a, 46b belt part

47 Flexible Seating Department

48 seat surface support

49 Assembly and disassembly link

64a, 64b The first through hole of the pad shoulder strap

65a, 65b pad shoulder strap second through hole

Detailed ways

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings and the like. In addition, since the embodiment described below is a preferable specific example of the present invention, various preferable limitations are added technically. However, unless there is any description intended to limit the present invention in the following description, the scope of the present invention It is not limited to these methods.

Fig. 1 is a schematic perspective view showing the main structure of the foldable stroller 1 of the present embodiment, Fig. 2 is a rear view schematic view of the foldable stroller 1 of Fig. 1 , and Fig. A schematic perspective view of the main structure of the pushchair 1 in a state where the detachable canopy portion 23 and the forward tilt preventing portion 22 as an example of the sunshade portion are removed from the pushchair 1 .

As shown in FIG. 1 and the like, the pushchair 1 has, as wheel portions, front wheel portions 18a, 18b and rear wheel portions 19a, 19b including rotatable two-wheeled wheels. Two rear wheel portions 19b are formed in the same manner as the front wheel portion 18a and the like. In addition, the pushchair 1 has a seat portion 45 on which an infant rides. The structure of the seat portion 45 will be described later.

The pushchair 1 has front wheel shaft parts 14a, 14b supporting the front wheel parts 18a, 18b, and rear wheel shaft parts 17a, 17b supporting the rear wheel parts 19a, 19b. The front wheel parts 18a, 18b are provided at bilaterally symmetrical positions, and the rear wheel parts 19a, 19b are similarly provided at bilaterally symmetrical positions. That is, it becomes a pair of front wheel part 18a, 18b and a pair of rear wheel part 19a, 19b. Furthermore, the front axle portions 14a, 14b are also provided as a pair on the left and right, and the rear axle portions 17a, 17b are also provided on the left and right as a pair.

The pushchair 1 has a pair of left and right grips 2a, 2b for the user to operate, and the side shafts 10a, 10b are connected to the grips 2a, 2b, respectively. Furthermore, the pair of left and right side shaft portions 10a, 10b are respectively connected to the front wheel shaft portions 14a, 14b and the rear wheel shaft portions 17a, 17b through rotatable fixing portions.

The pair of left and right side shaft portions 10a, 10b are held by the width of the seat portion 45 during use by the back width support portion 35 . Similarly, the pair of front axle portions 14a, 14b and the pair of rear axle portions 17a, 17b are held at the width of the seat portion 45 by the bottom surface width support portion 15 during use.

That is, the front wheel portions 18a, 18a are supported by the pair of side shaft portions 10a, 10b, the pair of front wheel shaft portions 14a, 14b, the pair of rear wheel shaft portions 17a, 17b, the back surface width support portion 35, and the bottom surface width support portion 15. 18b, rear wheel parts 19a, 19b and seat part 45.

Here, the pair of side shaft parts 10a, 10b, the pair of front wheel shaft parts 14a, 14b, the pair of rear wheel shaft parts 17a, 17b, the back side width support part 35, and the bottom face width support part 15 are examples of skeleton parts. Furthermore, the bottom width supporting portion 15 is an example of a bottom-arranged skeleton portion, and the rear-surface width supporting portion 35 is an example of a rear-arranged skeleton portion.

In this embodiment, as will be described later, the pair of side shafts 10a, 10b, the pair of front wheel shafts 14a, 14b, and the pair of rear wheel shafts 17a, 17b of the pushchair 1 can be fixed at the positions of the fixing parts, respectively. Turn and fold. That is, it becomes such a structure that the left and right pair of front wheel parts 18a, 18b and the left and right pair of rear wheel parts 19a, 19b can move in the direction of approaching each other left and right, respectively, and the width can be reduced. When the grip parts 2a and 2b are turned in the direction of approaching, the seat part 45 is folded to form a compact structure.

As shown in Fig. 1 etc., this foldable stroller 1 has a forward tilt preventing portion 22 for placing elbows for infants and young children and preventing infants from falling forward. It can be assembled and disassembled freely. Therefore, the user can use it with the forward tilt preventing portion 22 removed or with the forward tilt preventing portion 22 attached, as needed.

In addition, the pushchair 1 has a canopy 23 for protecting infants from direct sunlight, and the canopy 23 can also be freely attached to and detached from the pushchair 1 . Therefore, it can be used with the canopy part 23 detached or with the canopy part 23 attached as needed.

Furthermore, when the user uses the pushchair 1 by detaching the detachable forward tilt preventing portion 22 and the canopy portion 23 , the weight of the pushchair 1 can be further reduced.

In addition, the folding stroller 1 also has a storage portion 30 for the user, such as a caregiver, etc. to put in articles, a foot portion 16 for placing the feet of the infant when riding in the car, and is used to keep the infant on the seat portion. Front crotch belt portion 20 on 45 and waist belt portions 46a, 46b. These storage parts 30, the foot part 16, the front crotch belt part 20 and the waist belt parts 46a, 46b etc. can also be detachable, so they can be installed or disassembled as required, which is more convenient for users.

The storage unit 30 is, for example, a basket shape formed of a net-like material, and is arranged between the bottom surface width support unit 15 on the lower side of the seat support unit 48 described later. Therefore, even if an article is placed in the storage unit 30 and the storage unit 30 falls due to the weight, the bottom surface width supporting portion 15 can support the weight without rubbing against the road surface during walking. In addition, the leg rest portion 16 is a member having a belt shape, and is disposed above the front wheel portions 18a, 18b provided on the ends of the left and right pair of front wheel shaft portions 14a, 14b, and the left and right pair of front wheel shaft portions 14a, Between 14b. The leg rest 16 is made of, for example, a bendable member for easy folding. The front crotch belt part 20 and the waist belt parts 46a and 46b are made of, for example, non-stretchable materials in order to securely fix the body of the infant.

Furthermore, the leg rest portion 16 is fixed to the front axle portions 14a, 14b via the connection portions 50a, 50b. That is, the left and right ends of the leg rest 16 are respectively inserted into the insides of the connection parts 50a, 50b, and are sandwiched and fixed by the connection parts 50a, 50b. Therefore, there is no gap between the foot rest portion 16 and the connection portions 50a, 50b. Therefore, it becomes possible to prevent the infant's toe etc. from accidentally being caught in the gap between the foot rest part 16 and the connection part 50a, 50b and being injured (see FIG. 1 and FIG. 3 ).

However, as shown in FIG. 1 and FIG. 3 , in the present embodiment, the seat portion 45 has the seat support portion 13 and the cushioning elastic seat portion 47 on which the infant sits. Therefore, when an infant sits on the seat portion 45, the riding comfort is good.

The seat support portion 13 has a back support portion 44 and a seat support portion 48 , and the back support portion 44 and the seat support portion 48 are integrated to form the seat support portion 13 .

And, the back support portion 44 is arranged in the region formed by the frame parts such as the pair of side shaft portions 10a, 10b, the back width support portion 35, the pair of front wheel shaft portions 14a, 14b, and the pair of rear wheel shaft portions 17a, 17b. The surface support portion 48 is arranged in a region formed by skeleton portions such as the pair of front axle portions 14 a, 14 b, the pair of rear axle portions 17 a, 17 b, and the bottom surface width support portion 15 . Here, the back support portion 44 is an example of a rear seat support portion, and the seat surface support portion 48 is an example of a buttock seat support portion.

Furthermore, the seat support portion 13 is formed of, for example, a mesh material with good air permeability.

In addition, the elastic seat portion 47 has cushioning properties to the extent that an infant sits on it. Here, the elastic seat portion 47 has the back cushion portion 3 , the seat portion 12 , the head protection pad portion 7 , and the buttock protection pad portion 40 .

In the present embodiment, the back cushion part 3 and the seat part 12 are detachably arranged on the seat support part 13, but it is also possible to remove the back cushion part 3 and the seat part 12 and directly attach the head to the seat support part 13. The body protector 7 and the buttock protector 40 are used together. That is, the head protector 7 and the buttock protector 40 may be arranged and used on the seat support 13 instead of the back cushion 3 and the seat 12 .

Therefore, when the head protection pad portion 7 and the buttock protection pad portion 40 are directly arranged on the seat support portion 13 for use, the riding comfort of the infant and the ventilation can be ensured even in seasons when the air temperature and humidity are high. property; when the back cushion portion 3 and the seat portion 12 are mounted on the seat support portion 13 for use, the cushioning property becomes better, and the heat retention property is also good.

In addition, as will be described later, it is possible to adjust the relative position of the head protection pad portion 7 with respect to the height of the seat portion 12 and the buttocks protection pad portion 40 on the back pad portion 3 even without passing through the back pad portion 3 and the seat portion. 12 and in the case of using the head protection pad part 7, the relative height of the head protection pad part 7 with respect to the seat surface support part 48 and the hip protection pad part 40 can also be adjusted on the backrest support part 44 of the seat support part 13. Location. That is, the height of the headrest 7 can be adjusted according to the growth of the infant.

In addition, the head protector 7 has the occipital protector 5 and the side head protector 6 , and the buttock protector 40 has the side buttock protector 11 and the buttock center protector 39 .

Here, the seat portion 12 is an example of a seat elastic portion, and the back pad portion 3 is an example of a back elastic portion. The hip protector 40 is an example of a hip protector elastic part, and the head protector 7 is an example of a head protector elastic.

The headrest part 7 and the buttocks part 40 of this embodiment are connected by the connection part 41. As shown in FIG. Therefore, when the infant sits on the seat portion 45 , it is possible to prevent the head protection pad portion 7 and the buttocks protection pad portion 40 from being largely misaligned in the left and right or moving up and down greatly by the connection portion 41 . Furthermore, the head protection pad part 7 and the buttocks protection pad part 40 may not be connected. In the case of such disconnection, the height of the headrest 7 can be adjusted more easily according to the growth of the infant.

FIG. 18 is a partial schematic view of the pushchair 1 , showing a state in which the backrest pad 3 and the seat portion 12 are not attached to the seat support portion 13 . FIG. 19 shows the back side of the head pad portion 7 and the buttock pad portion 40 .

As shown in FIG. 19 , fixing portions 59 a , 59 b , 60 a , 60 b , 61 a , and 61 b are provided on the side head protection pad portion 6 and the side buttock protection portion 11 . That is, a pair of fixing parts 59a, 59b and a pair of fixing parts 60a, 60b are arranged at two places on the left and right at the lateral outer periphery of the side head protection pad part 6, and in the vicinity of the peripheral part on the back side of the side buttock protection part 11 A pair of fixing parts 61a, 61b is provided. In addition, each fixing portion may be provided in the vicinity of the peripheral portion on the back side of the side head pad portion 6 and in the laterally outer peripheral portion of the buttock pad portion 40 .

Further, as shown in FIG. 18 , head protection pad fixing portions 57 , 57 are provided on the left and right at an intermediate height position of the back support portion 44 on the side surface side of the back support portion 44 . The head protection pad fixing parts 57, 57 correspond to the fixing parts 59a, 59b, 60a, 60b of the side head protection pad part 6, and constitute a detachable fixing mechanism.

In addition, hip protection pad fixing portions 58 , 58 are provided on the left and right at positions slightly above the seat surface support portion 48 on the side surface of the backrest support portion 44 . The buttock protection pad fixing parts 58, 58 correspond to the fixing parts 61a, 61b of the side buttock protection part 11, and constitute a detachable fixing mechanism.

In addition, in the figure, only the head protection pad fixing part 57 and the hip protection pad fixing part 58 provided on the left side are shown, but the head protection pad fixing part is similarly provided on the right side. 57 and the buttocks protection pad fixing part 58.

Furthermore, when the headrest 7 and the buttocks 40 are disposed on the seat support 13 via these fixing parts, the positions of the headrest 7 and the buttocks 40 can be maintained. That is, when arranged on the seat support portion 13, the side head protection pad portion 6 and the side buttock protection portion 11 do not fall inward. Further, in other words, these fixing parts 57, 57, 58, 58, 59a, 59b, 60a, 60b, 61a, 61b can restrain the side head protection pad part 6 and the side buttock protection part 11 from falling to the back of the head protection pad. Part 5 and buttocks central protection part 39 side.

In addition, fixing parts 59a, 59b, 60a, and 60b provided on the side head protection pad part 6 of the head protection pad part 7 are provided on the left and right. Therefore, the position of the height of the headrest portion 7 from the seat surface portion 12 can be adjusted by the headrest fixing portions 57 , 57 respectively provided on the left and right side surfaces of the seat support portion 13 .

Here, these fixing parts 59a, 59b, 60a, 60b, 61a, 61b, head protection pad fixing parts 57, 57 and buttock protection pad fixing parts 58, 58 are detachable fixing mechanisms, such as buckles, surface straps, etc. Buckle, hasp, rope and other components.

FIG. 2 is a schematic rear view of the pushchair 1 according to this embodiment. In FIG. 2, the relationship of the back support part 44, the back width support part 35, a pair of side shaft part 10a, 10b, a pair of rear wheel shaft part 17a, 17b, etc. is shown. In addition, as will be described later, the canopy part 23 is installed near the connection between the pair of gripping parts 2a, 2b and the pair of side shaft parts 10a, 10b by a detachable fixing mechanism, that is, the canopy detachable fixing parts 43a, 43b. . Furthermore, as will be described later, the range in which the canopy part 23 covers the seat part 45 can be adjusted by the canopy position fixing parts 36a, 36b, and 36c.

A pair of support portion shoulder strap first through holes 4a, 4b and a pair of support portion shoulder strap second through holes 34a, 34b are provided on the backrest support portion 44, and the head protection pad portion 7 and the shoulder strap can be adjusted as described later. The height of the straps 8a, 8b.

The back width support portion 35 is disposed between the pair of left and right side shaft portions 10a, 10b and the pair of rear wheel shaft portions 17a, 17b. In addition, as shown in FIG. 2 , when viewed from the back side, in the use state of the foldable stroller 1 , the two pillars are arranged to intersect (X-shape) approximately at the center in the longitudinal direction of the pillars. These two struts are rotatably fixed by screws or the like at the intersecting portions, and serve as back width support portions 35 . Moreover, when the pushchair 1 is folded, the two pillars of the back width support portion 35 rotate around the intersecting portion to shorten the distance between them, and when the two approach, the backrest support portion 44 is folded, and The width is narrowed for compact storage.

In the state of use, on the rear wheel shaft parts 17a, 17b, on the position above the position where the rear wheels 19a, 19b are connected and close to the back surface width support part 35, a rear wheel shaft part 17a, 17b for holding the rear wheel shaft part 17a, 17b is arranged. The horizontal width holding part 33 of the width. Furthermore, the back surface width support portion 35 is connected to a support shaft 62 disposed below the seat surface support portion 48 via the lateral width holding portion 33 .

That is, in the state of use, the lateral width holding portion 33 is held to such an extent that the width of the back surface width support portion 35 can be held and the width of the backrest support portion 44 can be ensured. Further, the lateral width holding portion 33 is bendable at a substantially center position in the width direction, and when the lateral width holding portion 33 is bent, the two pillars of the back width support portion 35 can be brought closer together. Thereby, the distance in the width direction of the back support portion 44 can be shortened. That is, the distance in the width direction of the back support portion 44 can also be maintained by the lateral width maintaining portion 33 . Here, the width direction means, for example, the lateral direction in FIG. 2 between the left and right grips 2a, 2b.

In addition, a width holding release lever 32 is provided at a bent portion at a substantially central position of the lateral width holding portion 33 . The width holding release lever 32 has a function of fixing such that the bent portion of the width holding portion 33 does not bend during use, thereby maintaining a distance in the width direction.

As will be described later, when the user operates the width holding release lever 32 to release the fixing action, the width holding portion 33 is bent at a substantially central position, and the distance in the width direction is reduced, thereby folding the pushchair 1 . Then, the self-standing stand portion 31 is lowered between the rear wheels 19a, 19b, and the folding stroller 1 is supported by the self-standing stand portion 31 and the rear wheels 19a, 19b. stroller1.

FIG. 3 is a schematic perspective view showing a state where the canopy portion 23 and the forward tilt preventing portion 22 are removed in the pushchair 1 of FIGS. 1 and 2 .

As shown in FIG. 3 , the head protection pad 7 is disposed on the back pad 3 , and the buttock protection pad 40 is disposed on the seat portion 12 . The backrest pad 3 is provided with a pair of pad shoulder strap first through-holes 64a, 64b and a pair of pad shoulder strap second through-holes 65a, 65b not shown here, which will be described later. Moreover, a pair of first through holes 21a, 21b for head protection shoulder straps and a pair of head protection shoulders not shown here, which will be described later, are provided on the back of the head protection pad portion 5 of the head protection pad portion 7. With second through holes 38a, 38b.

Here, the pair of pad shoulder strap second through holes 65a, 65b, the pair of support portion shoulder strap second through holes 34a, 34b (see FIG. The shoulder belt first through-holes 21a, 21b are arranged overlappingly, and the pair of shoulder belt parts 8a, 8b are arranged through these through-holes. Furthermore, the shoulder belt parts 8a and 8b are arranged so as to protrude from the head protection shoulder belt first through-holes 21a and 21b of the head protection pad part 7 .

Furthermore, the buttocks protection pad part 40 is provided with a front crotch belt penetration part 20a, and the front crotch belt part 20 is arranged so as to protrude upward from the front crotch belt penetration part 20a. Moreover, on the buttocks protection pad part 40, the waist part 46a, 46b which can press the waist vicinity of an infant obliquely upward from the horizontal direction is arrange|positioned.

And shoulder belt part 8a, 8b is constituted so that, after being connected on the waist belt part 46a, 46b by the connecting part not shown in figure, through the detachable connecting part 49 that is provided on the front crotch belt part 20, it is in front of the infant. connected at the abdominal portion of the side. Therefore, the safety of the infant can be ensured by fixing the infant to the seat portion 45 by the shoulder belt portions 8a, 8b, the front crotch belt portion 20, and the waist belt portions 46a, 46b.

In addition, side shaft portions 10a, 10b are provided with side protruding preventing portions 9a, 9b for preventing infants and young children from being exposed to the wind when they are seated on the seat portion 45 and walking. A case where the foldable stroller 1 protrudes in the lateral direction (width direction) due to the influence of the lateral sway of the pushchair 1 due to unevenness of the road surface or the like. That is, the side protruding prevention parts 9a, 9b serve as guard parts for preventing the infant from protruding laterally, and are straddled over the side shaft parts 10a, 10b.

Moreover, in order to reliably prevent the infant from protruding in case of lateral shaking, the shape of the side protruding prevention parts 9a, 9b is preferably a shape slightly protruding forward than the side shaft parts 10a, 10b. It is roughly arcuate in shape or roughly crescent in shape. Furthermore, in consideration of the possibility that an infant may bump into the side projection preventing portions 9a, 9b, it is preferable to form the side projection preventing portions 9a, 9b from a relatively soft material having strength as a protective member. Therefore, as a material for forming the side protruding preventing portions 9a, 9b, for example, polypropylene, polyolefin, polyamide, and other thermoplastic resins, polypropylene, polyolefin, or polyester, and Other thermoplastic elastic materials, etc. In addition, the side protruding prevention parts 9a, 9b can also be formed of a base with a relatively hard material, and the surface can be covered with a relatively soft material, or two-color molding.

Here, the side protrusion prevention parts 9a and 9b are an example of a protrusion prevention part.

Moreover, in this embodiment, the head protector part 7 has the occipital region protector part 5 and the lateral head protector part 6 provided on the left and right. And the side head protection pad part 6 of the head protection pad part 7 is arrange|positioned at the position where the side protruding prevention part 9a, 9b is arrange|positioned.

Therefore, when an infant is seated, the side protruding prevention portions 9a, 9b can prevent protruding in the lateral direction, and even if the infant bumps into the side protruding prevention portions 9a, 9b, the side head can be passed. This impact can be reduced by protecting the pad portion 6, thereby further improving safety.

In addition, in the present embodiment, since the pushchair 1 is configured to be folded in a direction approaching between the left and right of each front wheel portion 18a, 18b and each rear wheel portion 19a, 19b, and between the grip portions 2a, 2b and The front wheel parts 18a, 18b are folded in the approaching direction, therefore, the seat surface support part 48 and the backrest support part 44 can be relatively thin deformable sheet-shaped, or can be made of a bendable structure as a curved part or a divided piece. Furthermore, in order to achieve light weight, in this embodiment, the seat support portion 13 having the seat surface support portion 48 and the backrest support portion 44 may be made of a mesh material or the like having such strength as to support the weight of an infant.

Next, height adjustment of the head protection pad portion 7 of the elastic seat portion 47 of the seat portion 45 of the pushchair 1 according to the present embodiment will be described with reference to FIGS. 4 to 7 .

In FIGS. 4 to 7 , for convenience of description, the backrest pad 3 , the head protection pad 7 , the connecting portion 41 and the hip protection pad 40 are extracted and shown in plan view. In addition, the back cushion portion 3 is disposed on the backrest support portion 44 , and the effect of adjusting the height of the head protection cushion portion 7 is substantially the same for the back cushion portion 3 and the backrest support portion 44 .

As described above, the elastic seat portion 47 includes the back pad portion 3 , the seat portion 12 , the head protection pad portion 7 and the buttock protection pad portion 40 . The head protection pad part 7 is provided with a pair of head protection shoulder strap first through holes 21a, 21b and a pair of head protection shoulder strap second through holes 38a, 38b. That is, four through-holes for the shoulder straps 8a, 8b in two rows up and down are symmetrically arranged in the headrest part 7. As shown in FIG.

In addition, a pair of pad shoulder strap first through holes 64a, 64b and a pair of pad shoulder strap second through holes 65a, 65b are provided on the backrest pad 3, and a pair of support shoulder straps are provided on the back support portion 44. 1st through-hole 4a, 4b and a pair of support part shoulder belt 2nd through-hole 34a, 34b.

That is, four through-holes for the shoulder straps 8a and 8b are arranged symmetrically on the backrest pad 3 in two rows up and down. Similarly, four through-holes for the shoulder straps 8a and 8b are arranged symmetrically in two rows up and down in the back support portion 44 .

Moreover, the backrest pad 3 is disposed on the backrest support portion 44, and the pair of pad shoulder strap first through holes 64a, 64b and the pair of support portion shoulder strap first through holes 4a, 4b provided on them overlap each other. configuration. Similarly, a pair of pad part shoulder strap 2nd through-hole 65a, 65b and a pair of support part shoulder strap 2nd through-hole 34a, 34b are also arrange|positioned overlapping. Therefore, as described above, the effect on the height adjustment of the headrest section 7 is substantially the same in the back cushion section 3 and the backrest support section 44 .

That is, as described above, among the through holes, the first through holes 4a, 64a and the second through holes 65a, 34a of the back support portion 44 and the back cushion portion 3 are arranged to overlap each other, so that the shoulder belt portion 8a Select one of these groups and move through it. Then, either one of the head protection shoulder belt first through hole 21a or the head protection shoulder belt second through hole 38a of the head protection pad part 7 is selected, and the shoulder belt part 8a is passed therethrough.

The same applies to the other shoulder strap portion 8b, and passes through any one of these through-holes 4b, 34b, 64b, 65b, 21b, and 38b. That is, each first through-hole 4b, 64b and each second through-hole 65b, 34b of the back support portion 44 and the backrest pad portion 3 are arranged to overlap each other, and therefore, the shoulder belt portion 8b selects one of these groups and chooses one of them. through. Then, either one of the head protection shoulder strap first through hole 21b or the head protection shoulder strap second through hole 38b is selected, and the shoulder strap portion 8b is passed therethrough.

As mentioned above, the shoulder straps 8a, 8b pass through one of the through holes 4a, 4b, 34a, 34b, 64a, 64b, 65a, 65b, 21a, 21b, 38a, 38b, and are placed on the headrest pad. 7, and can adjust the height according to the body shape and growth of infants and young children. And the relative height of the head protection pad part 7 from the buttocks protection pad part 40 can be adjusted with adjustment of the shoulder belt part 8a, 8b.

In FIG. 4 , the pair of pad shoulder strap second through holes 65a, 65b of the backrest pad 3 (the support portion shoulder strap second through holes 34a, 34b of the backrest support portion 44 overlapping therewith) and the headrest pad The head protection pad part 7 is arranged such that the pair of first through holes 21a, 21b of the head protection shoulder straps of the part 7 are respectively overlapped, and the shoulder strap parts 8a, 8b are arranged on the front side through these through holes.

When the head protection pad portion 7 is arranged on the seat portion 45 in this state, it is considered that it is not too big for an infant. That is, the headrest 7 is arranged in a direction approaching the buttocks 40 arranged on the seat surface 12 (see FIG. 3 ). Therefore, when an infant sits on the seat portion 45 , the head protection pad portion 7 is arranged at a relatively low position on the back cushion portion 3 .

But in above-mentioned state, if the build of infant is relatively big, then the position of head protection pad portion 7 will be arranged in slightly lower than the head of infant, so side head protection pad portion 6 and the side of infant. The position of the head does not match. In this state, the head protection pad portion 7 cannot sufficiently protect the head portion of the infant.

That is, in order to be arranged near the side protruding prevention parts 9a, 9b (referring to Fig. 3 ), play the role of protecting the side head part of the infant, and can fix the infant sitting on the most effective position, it is necessary to be able to The position of the headrest 7, the positions of the shoulder straps 8a, 8b, and the like are adjusted.

In FIGS. 5 and 6 , the positional relationship between the back cushion portion 3 , the back support portion 44 , and the headrest cushion portion 7 is the same. That is, the pair of pad shoulder strap first through holes 64a, 64b and the support portion shoulder strap first through holes 4a, 4b overlap with the pair of head protection shoulder strap first through holes 21a, 21b, and the pair of pad shoulder straps The belt second through-holes 65a, 65b and the support part shoulder belt second through-holes 34a, 34b are arranged in a manner overlapping with the pair of head protection shoulder belt second through-holes 38a, 38b, and each through-hole (shown in the figure) The overlapping four holes) are through-holes penetrating through the headrest section 7 , the backrest cushion section 3 , and the backrest support section 44 .

In FIG. 5, the shoulder strap parts 8a, 8b are arrange|positioned on the front side through a pair of head protection shoulder strap 2nd through-hole 38a, 38b. That is, the shoulder straps 8a, 8b pass through the pair of pad shoulder strap second through holes 65a, 65b and the support portion shoulder strap second through holes 34a, 34b, and pass through the pair of head protection shoulder strap second through holes. 38a, 38b and configuration.

Next, in FIG. 6, the shoulder belt parts 8a, 8b are arranged on the front side through the first through holes 21a, 21b of the head protection shoulder belt. That is, the shoulder straps 8a, 8b pass through the pair of pad portion shoulder strap first through holes 64a, 64b and the support portion shoulder strap first through holes 4a, 4b, and pass through the head protection shoulder strap first through holes 21a, 21b. And configuration.

Therefore, in the seat part 45, by changing the through-hole of the attachment position of the shoulder belt parts 8a, 8b without changing the position of the headrest pad part 7 from the backrest pad part 3, the shoulder belt parts 8a, 8b can be easily installed. 8b height adjustment. Thereby, since height adjustment of the shoulder belt parts 8a and 8b can be easily performed according to growth of an infant, for example, it is very convenient for a user.

In addition, for example, when two or more infants with different body types share the pushchair 1, the height adjustment of the shoulder straps 8a and 8b can be easily performed without changing the position of the headrest 7. , so it is very convenient for users.

In addition, as described above, the headrest 7 and the buttocks 40 have the fixing parts 59a, 59b, 60a, 60b, 61a, 61b, etc., so that they can be fixed relative to the fixing parts arranged on the seat support part 13. 57, 57, 58, 58 are freely detachable and fixed. Moreover, since the fixing parts 59a, 59b, 60a, 60b provided on the headrest part 7 are arranged at different heights in the left, right, upper and lower rows (refer to FIG. 19), the shoulder belt parts 8a, 8b Adjustment and height adjustment of the headrest part 7 can also adjust the fixed position of the headrest part 7 and the seat support part 13 .

Compared with the case of FIG. 4 , the headrest section 7 in FIGS. 5 and 6 is arranged slightly above the back cushion section 3 . Here, upward means the direction toward the side where the grip part 2a, 2b is arrange|positioned, and downward means the direction toward the side where the wheel part is arrange|positioned.

Therefore, in the positional relationship with the hip protector 40 arranged on the seat portion 12 (see FIG. 3 etc.), the head protector 7 is arranged at a slightly upward position compared to the position shown in FIG. 4 . Therefore, when an infant is seated, the head protection pad portion 7 is disposed on the back pad portion 3 at a position slightly higher than that in FIG. 4 . In this case, too, the side head protection pad portion 6 of the head protection pad portion 7 can be reliably arranged in the vicinity of the side protruding prevention portions 9a, 9b, thereby preventing the head portion of the infant from protruding laterally. , and can reduce the damage of the head part by the side head protection pad part 6 .

FIG. 7 shows a state in which the headrest 7 is arranged higher than in FIGS. 5 and 6 . That is, one of the pair of head protection shoulder strap second through holes 38a, 38b of the head protection pad portion 7, the pair of pad shoulder strap first through holes 64a, 64b of the backrest pad portion 3, and the backrest support portion 44 is formed. A state in which the first through-holes 4a, 4b are overlapped with respect to the support portion shoulder belt.

Therefore, the pair of head protection shoulder belt first through holes 21a, 21b of the head protection pad part 7 are arranged in the same position as the two pairs of through holes 64a, 64b, 65a, 65b provided on the backrest pad part 3 and the backrest support part 44. Different parts of the two pairs of through holes 4a, 4b, 34a, 34b. That is, the pair of head protection shoulder strap first through holes 21a, 21b are arranged in the pair of pad portion shoulder strap first through holes 64a, 64b and the support portion shoulder strap first through holes 4a, 64b provided on the backrest pad portion 3. 4b above.

The shoulder straps 8a, 8b pass through the pair of pad shoulder strap first through holes 64a, 64b, the support portion shoulder strap first through holes 4a, 4b and the pair of head protection shoulder strap second through holes 38a, 38b, and are arranged. on the front side. The body of an infant can be fixed to the seat part 45 by these shoulder strap parts 8a, 8b when it sits.

In FIG. 7 , the headrest pad portion 7 is arranged above the back pad portion 3 . That is, the head protection pad portion 7 is disposed at a position higher than the seat portion 12, so when a large infant sits on the seat, the head can be reliably protected even if the head is relatively upward.

In this way, the pushchair 1 of the present embodiment can adjust the distance between the back cushion portion 3 and the front surface side of the back support portion 44 of the seat portion 45 and the head portion of the infant according to the growth and body shape of the infant. The position of the headrest part 7. Furthermore, since the detachable back cushion portion 3 can be detached and the head protection pad portion 7 can be placed on the backrest support portion 44, it is possible to ensure good air permeability while ensuring good riding comfort for infants. In addition, the height of the shoulder belt parts 8a and 8b can also be adjusted according to the growth of an infant, etc. Therefore, it can always be used in the state most suitable for the body shape of an infant.

Here, the pair of support portion shoulder strap first through holes 4a, 4b and the pair of support portion shoulder strap second through holes 34a, 34b of the backrest support portion 44 are the plurality of pairs of shoulder strap holes provided on the back seat support portion. one example. The pair of first through-holes 21a, 21b for the head-protecting shoulder straps and the second through-holes 38a, 38b for the pair of head-protecting shoulder straps in the head-protecting pad portion 7 are a plurality of pairs of shoulder straps provided on the head-protecting elastic portion. An example of a height adjustment hole.

Therefore, for the shoulder straps 8a, 8b, by combining these through holes 4a, 4b, 34a, 34b, 21a, 21b, 38a, 38b, the height of a pair of shoulder straps arranged on the left and right shoulders of the infant can be adjusted. .

In addition, the pair of pad shoulder strap first through-holes 64a, 64b and the pair of pad shoulder strap second through-holes 65a, 65b of the backrest pad 3 are examples of a plurality of pairs of shoulder strap through-holes in the backrest elastic portion. Therefore, by further combining these through-holes 64a, 64b, 65a, 65b with the above-mentioned through-holes 4a, 4b, 34a, 34b, 21a, 21b, 38a, 38b for the shoulder straps 8a, 8b, the arrangement can be adjusted. The height of a pair of shoulder straps on the left and right shoulders of an infant.

Therefore, the shoulder straps 8a, 8b can fix the infant to the seat portion 45 at an optimal position suitable for the body shape of the infant. Therefore, it is possible to reduce body shaking of infants and young children caused by shaking due to irregularities on the road surface during walking.

In addition, the relative position of the headrest 7 with respect to the height of the buttocks 40 arranged on the seat surface 12 on the seat support 48 can be adjusted. Therefore, the headrest 7 can be arranged at an optimal position to suit the body shape of the infant. Therefore, even if the infant's head or the like shakes laterally and hits the skeleton of the stroller, the impact can be relaxed and absorbed by the head protection pad 7, thereby reducing damage to the head and the like.

Next, FIG. 8 to FIG. 10 are explanatory schematic diagrams showing partial parts in order to explain the state of mounting the canopy portion 23 of the foldable stroller 1 according to this embodiment. 11 to 13 are explanatory diagrams illustrating the canopy portion 23 in order to illustrate the multi-stage holding positions of the canopy portion 23 .

As shown in FIG. 8 , a canopy detachable locking support portion 29 a is provided on the side protruding prevention portion 9 a of the pushchair 1 , and a canopy detachable portion 42 a is provided on the canopy portion 23 . Here, only one side of the pushchair 1 is shown in FIG. 8 , but when viewed from the other side, the side protruding prevention portion 9 b is provided with the same support portion 29 a for attaching and detaching the canopy. The other side of the canopy part 23 is provided with a canopy detachable part 42b which is the same as the canopy detachable part 42a. When the user wants to use the canopy part 23, the canopy part 23 is lifted up to the vicinity of the handle parts 2a and 2b of the folding stroller 1, and is arranged to cover from the top, and the canopy attaching and detaching parts 42a and 42b are respectively inserted into the canopy. Attachment is performed by attaching and detaching the locking support portions 29a, 29b.

Next, as shown in FIG. 9 , on the second tent portion 27 of the tent portion 23, tent attachment and detachment fixing portions 43a, 43b are provided on the left and right, so that the tent portion 23 can be detachably mounted on the handle parts 2a, 2b. On the nearby side shaft parts 10a, 10b. The canopy detachable fixing parts 43a and 43b are provided on the end part side which is arrange|positioned in the vicinity of the backrest support part 44 in the vicinity of the end part of the 2nd canopy part 27 in the left-right direction. That is, the canopy detachable fixing parts 43a, 43b are provided on the left and right, and can fix the canopy part 23 by being attached so as to wrap around the side shaft parts 10a, 10b near the grip parts 2a, 2b.

The canopy detachable fixing parts 43a, 43b are, for example, surface fasteners, and surface fasteners on the hook side and the fur side are respectively arranged on the left and right sides of the canopy part 23 so that they can be rolled up. In addition, the convex side and the concave side of hooks, snap buttons, etc. may be arranged, and may be tied to the side shaft portions 10a, 10b with strings.

As shown in FIG. 10 , a canopy position fixing portion 36 a is provided at the center portion of the region near the upper end portion of the back support portion 44 . The canopy position fixing part 36b is provided in the center area of the left and right ends of the second frame part 25 of the canopy part 23, and the left and right ends of the side of the second canopy part 27 disposed near the back support part 44 The center portion is provided with a tent position fixing portion 36c. One of the canopy position fixing parts 36a, 36b, 36c is, for example, a protruding buckle, and the other is a buttonhole or an annular locking ring. When hooking the canopy position fixing parts 36a and 36b or 36c, the canopy part 23 can also be in a state where the first canopy part 26 is unfolded and the second canopy part 27 is folded, as will be described later. That is, the canopy position fixing parts 36a, 36b, and 36c can adjust the covering position of the canopy part 23 . In addition, the canopy position fixing parts 36a, 36b, and 36c may be surface fasteners.

11 to 13 are explanatory diagrams for explaining that the position where the canopy portion 23 covers the seat portion 45 of the foldable stroller 1 can be adjusted in multiple stages, and are shown centering on the canopy portion 23 .

First, the structure of the canopy portion 23 is described. The canopy portion 23 has a first canopy portion 26 and a second canopy portion 27. It is assumed that the second canopy portion 27 can cover the region between the second frame portion 25 and the grip portions 2a, 2b when attached, that is, can cover the vicinity of the upper end portion of the back support portion 44 . The first canopy part 26 has two skeleton parts 24, 25, and the first canopy part 26 is stretched between them. between. Therefore, the canopy part 23 of this embodiment is light in weight compared with a normal canopy part. In addition, the first frame portion 24 and the second frame portion 25 have a substantially inverted U-shape (see FIG. 1 and the like), which is an example of a substantially U-shaped frame portion. Furthermore, the first canopy portion 26 is stretched between the first frame portion 24 and the second frame portion 25 , has a ridge shape between the left and right side shaft portions 10 a , 10 b , and can cover the seat portion 45 . Here, the first canopy is an example of the first cover.

FIG. 11 is a state in which the canopy portion 23 is folded and not used as a sunshade portion.

At this position, the two frame parts 24, 25 are moved so that they are close to each other and the two are overlapped, so that the first canopy part 26 becomes a folded state, and then the two frame parts 24, 25 are moved together to the grip part 2a. , 2b, that is, the vicinity of the upper end of the backrest support portion 44, so that the second canopy portion 27 is in a folded state. The canopy part 23 is folded by turning the canopy part 23 around the above-mentioned canopy attachment and detachment parts 42a, 42b, and turning the two frame parts 24, 25 to positions near the grip parts 2a, 2b. That is, the position of the canopy portion 23 in this state is an example of a multi-stage holding position.

FIG. 12 is a state in which the first frame portion 24 is moved forward (front side) from the state in FIG. 11 . That is, when the user moves the first frame portion 24 in the arrow r1 direction of FIG. 12 and moves and fixes the hinge 52 in the downward direction r3, the first canopy portion 26 can be brought into an unfolded state. In this case, in order to fix at this position, the said canopy position fixing part 36a, 36b, 36c is hooked mutually.

In this state, the second canopy portion 27 is folded and accommodated between the second frame portion 25 and the vicinity of the grip portions 2 a , 2 b , that is, between the second frame portion 25 and the vicinity of the upper end of the back support portion 44 . That is, the position in this state is a position in which the second canopy portion 27 is folded and the first canopy portion 26 is unfolded.

Here, the position where the first canopy portion 26 is unfolded and the second canopy portion 27 is folded is an example of a multi-stage holding position.

In addition, as shown in FIG. 13 , the second canopy portion 27 can also be in the unfolded state. In this case, the above-mentioned hooking of the canopy position fixing parts 36a and 36b is released, and the first frame part 24 is further pulled so that the canopy part 23 largely covers the front side of the seat part 45 . That is, when the user moves the first frame portion 24 in the direction of the arrow r2 on the drawing, the second canopy portion 27 can be brought into an unfolded state.

In this state, when viewed from the front side of the pushchair 1 (not shown), the canopy portion 23 completely covers the upper front side of the seat portion 45, so that the face and upper body of the infant can be protected from sunlight. show. Here, the second canopy portion 27 is an example of a second covering portion, and can cover between the upper edge end portion of the back support portion 44 and the second frame portion 25 . The canopy 23 can also adopt a ratchet type, and can be fixed in multiple stages.

The position in this state is a state where both the first canopy portion 26 and the second canopy portion 27 are unfolded, and the canopy portion 23 is fully unfolded. The position of the canopy 23 in this state is an example of a multi-stage holding position.

In this way, the canopy 23 detachably attached to the foldable stroller 1 of this embodiment can be detachably attached to the canopy detachable parts 42a, 42b on the canopy detachable locking support parts 29a, 29b as described above. Rotation, wherein the canopy attachment and detachment locking support parts 29a, 29b are arranged on the side protruding prevention parts 9a, 9b, thus, the canopy part 23 can be based on the awning attachment and detachment parts 42a, 42b as shown in Figure 11 to Figure 13 Expand or collapse as shown.

Here, the canopy part 23 is an example of a sunshade part, and has a multistage holding position as mentioned above.

Therefore, when the user places the infant on the pushchair 1 and wishes to avoid sunlight, the canopy portion 23 can be attached and used.

In addition, since the canopy 23 has multiple holding positions, it is possible to adjust the position where the canopy 23 covers the infant sitting on the seat 45 according to the intensity of the sun and the angle of the sun.

As shown in FIGS. 20 to 22 , an observation window 53 may be provided in a substantially central region of the second canopy portion 27 of the canopy portion 23 . The observation window 53 has a flap portion 54 and a window portion 55 , and when the observation window 53 is not used, the flap portion 54 is arranged to cover the window portion 55 . The flap portion 54 can be freely opened and closed by, for example, two flap portion fixing portions 55 a and 55 b provided in the peripheral region of the window portion 55 .

That is, when the window portion 55 is covered by the flap portion 54, the flap portion 54 is fixed by the flap portion fixing portions 55a, 55b. Furthermore, in this state, since the observation window 53 is covered by the flap part 54, the canopy part 23 can block sunlight.

When the fixing of the flap portion fixing portions 55a and 55b is released and the flap portion 54 is rolled up as shown in FIGS. 20 and 21 , the window portion 55 is exposed. In this state, even when the canopy portion 23 is attached, the user can easily observe the condition of the infant from the window portion 55 .

The flap portion 54 can be formed of the same material as that of the canopy portion 23 . That is, as shown in FIGS. 20 and 21 , in order to easily fix the flap portion 54 by rolling it to one side and using the flap portion pressing portion 56 , a soft material is preferable. In addition, the window portion 55 is formed as a through hole in a substantially square shape in a substantially central region of the second canopy portion 27, and a net-like member or a transparent plastic sheet is arranged to close the through hole. The window portion 55 should only be made of a material that has visibility to the extent that the infant sitting on it can be understood, and since the canopy portion 23 is folded, it is preferably made of a flexible material that can be bent. Since such an observation window 53 is provided, even when the canopy 23 is attached and used, the user can easily observe the infant from the window portion 55 of the observation window 53 .

FIG. 14 is a schematic side view of the pushchair 1 according to this embodiment, and FIG. 15 is a diagram showing an example of a conventional pushchair.

As shown in FIG. 14 , rear axle portion 17a of pushchair 1 according to the present embodiment is arranged to support side axle portion 10a and front axle portion 14a on an extension of side axle portion 10a from behind.

Moreover, the end part of the rear wheel shaft part 17a where the rear wheel part 19a is provided faces the direction away from the front wheel part 18a. When viewed from the side, the rear axle portion 17a has a gentle, substantially S-shaped curve.

On the other hand, as shown in FIG. 15, the shape of the conventional pushchair is such that when the rear wheel shaft portion 171a is extended from the connecting portion with the front wheel shaft portion 141a, it is slightly extended toward the end portion provided on the front wheel shaft portion 141a. The direction of the front wheel part 181a on the top is slowly approaching, and the rear wheel part 191a is arranged in the direction approaching the front wheel part 181a.

That is, the arrangement interval between the rear wheel portion 19a and the front wheel portion 18a of the pushchair 1 of the present embodiment is wider than that of the conventional foldable baby carriage. As shown in the figure, the distance B between the front wheel portion 18a and the rear wheel portion 19a of the pushchair 1 of this embodiment is larger than the distance A between the front wheel portion 181a and the rear wheel portion 191a of the conventional pushchair 1. . Here, although only the case viewed from one side has been described, the front wheel portion 18b, the rear wheel portion 19b, the front wheel shaft portion 14b, the rear wheel shaft portion 17b, etc. are also described when viewed from the other side side. Each is the same structure.

In this way, by increasing the distance between the rear wheel portion 19a and the front wheel portion 18a, the center of gravity when holding the grip portion 2a, 2b and walking the pushchair 1 will not be too close to the front wheel portion 18a, 18b side. And the center of gravity of the foldable stroller 1 can be kept at a lower position, so the sense of stability can be increased and the use is convenient.

16 is a partial explanatory schematic diagram for explaining the operation of the lateral width holding portion 33 , the width holding release lever 32 , the back width supporting portion 35 , and the like when folding the pushchair 1 according to the present embodiment.

When storing or transporting the pushchair 1, the user first kicks the width holding release lever 32 from the right rear wheel shaft 17a side to the left rear wheel shaft 17b side with a foot or the like. Then, for example, the width holding mechanism provided at the substantially center portion in the width direction of the width holding portion 33 is released, so that the width holding portion 33 can be bent at the substantially center portion in the width direction.

At this time, the substantially central portion in the width direction of the lateral width holding portion 33 is pushed upward, that is, in the direction of the arrow x3 in the drawing. Then, the back surface width support part 35 moves toward the center part so that two support|pillars may approach each other. Then, the left and right rear axle portions 17a, 17b also approach each other in a direction in which the width is narrowed accordingly. That is, the two pillars of the rear surface width support part 35, the left and right rear wheel shaft parts 17a and 17b, and the left and right rear wheel parts 19a and 19b move in directions of arrow x1 and arrow x2 in the drawing. In this way, the width of the pushchair 1 is narrowed to be folded.

Here, since a tongue-shaped resin portion is provided on the front end of the width release holding lever 32, when the user wants to fold the pushchair 1, he will not kick the front end with his foot or the like to do so. Slipping occurs when unloading. Therefore, even when the infant has to be folded with one hand, the lateral width holding portion 33 can be easily released and the folding can be performed.

Next, as shown in FIG. 17, the user holds either of the grips 2a, 2b, and moves the grips 2a, 2b so as to turn in the direction of the front wheels 18a, 18b.

That is, the user moves the grips 2a, 2b in the direction of the arrow x4 in the figure, and approaches the grips 2a, 2b in the direction of the front wheels 18a, 18b. In this way, the pushchair 1 can be stored compactly. In addition, in the present embodiment, the gripping parts 2a, 2b are gripped to rotate the gripping parts 2a, 2b in the direction of the front wheel parts 18a, 18b, and conversely, the front wheel shaft parts 14a, 14b are gripped to be close The same applies to folding parts 2a and 2b.

Furthermore, the user can also hold the moving belt part 51 (see FIG. 2 ) arranged between the side shaft part 10b and the connecting part 50b, and pull up the moving belt part 51 to approach the holding parts 2a, 2b. Thereby folding. In this way, the user can fold the pushchair 1 without squatting down. Therefore, it is very convenient when the user is tall or carries luggage.

At this time, it descends from the standing stand part 31 so that the folded pushchair 1 can be supported on the same plane as the left and right rear wheel parts 19a and 19b, and stored in a self-standing manner. That is, the foldable stroller 1 of this embodiment can support the weight of the foldable stroller 1 by the pair of rear wheel portions 19 a and 19 b and the self-standing frame portion 31 and store it in a self-standing manner.

In this way, the foldable stroller 1 of the present embodiment can be folded and compactly stored, and can also be stored on its own.

In addition, since the foldable stroller 1 of the present embodiment is in the folded state, the handles 2a, 2b are just like umbrella handles, so it is sometimes called an umbrella shape. , so it is sometimes called a portable stroller.

The present invention is not limited to the above-mentioned embodiments.

Claims (6)

1. a Pushchair, is characterized in that,

Comprise: the seat section that supplies the infant to take;

When described infant takes from a pair of shoulder belt section of the shoulder portion of about restriction, the back side;

Support the skeleton portion of described seat section;

The wheel section that have a pair of front wheele part and pair of rear wheels section, can rotate; With

For a pair of handle part of user's operation,

Described seat section has the elasticity seat section that can install and remove with resiliency of taking a seat for described infant and supports the seat support of described elasticity seat section,

Described elasticity seat section has the cephalic protection elastic portion that described infant's head is partly protected and the buttocks protection elastic portion that described infant's buttocks is partly protected at least,

Described seat support has the back side seat support of the back side that disposes described cephalic protection elastic portion and support described infant when described infant takes a seat and disposes the buttocks seat support that described buttocks protects elastic portion and support described infant's buttocks side when described infant takes a seat

Described skeleton portion has:

A pair of side axial region, it begins to extend from a pair of described handle part respectively, and mainly supports described back side seat support;

Support a pair of front-wheel axial region of described front wheele part; Support the pair of rear wheels axial region of described trailing wheel section;

Bottom surface configuration skeleton portion, its in use the width by described buttocks seat support keep the width of a pair of described front-wheel axial region and the width of a pair of described trailing wheel axial region, when folding so that the state of the narrowed width of the width of a pair of described front-wheel axial region and a pair of described trailing wheel axial region it is kept; With

Back side configuration skeleton portion, it keeps a pair of described side axial region and pair of rear wheels axial region by the width of described back side seat support in use, when folding so that the state of the narrowed width of the width of a pair of described side axial region and pair of rear wheels axial region it is kept

A pair of described shoulder belt section can be according to described infant's build, by being arranged on many on the seat support of the described back side to the shoulder belt hole and being arranged on many on described cephalic protection elastic portion, shoulder belt height adjustment hole adjusted,

Along with the adjustment of a pair of described shoulder belt section, can regulate described cephalic protection elastic portion with respect to the relative position of the height of described buttocks seat support.

2. Pushchair as claimed in claim 1, is characterized in that,

Described elasticity seat section also has: the backrest elastic portion is configured between described back side seat support and described cephalic protection elastic portion, flexibly the described infant's that takes a seat of supporting described back side; The seat surface elastic portion is configured between described buttocks seat support and described buttocks protection elastic portion, flexibly supports the described infant's who takes a seat described buttocks side,

Described backrest elastic portion have with how corresponding to the described shoulder belt hole position of described back side seat support on arrange many to the shoulder belt through hole, a pair of described shoulder belt section passes many to described shoulder belt hole and many to described shoulder belt through hole,, can regulate a pair of described shoulder belt section described shoulder belt height adjustment hole by many.

3. Pushchair as claimed in claim 1 or 2, is characterized in that,

A pair of described side axial region is provided with and leans out be used to what the described head parts transversely that prevents described infant leant out the section of preventing; described cephalic protection elastic portion has the offside cephalic protection elastic portion that described infant's side head part is protected, described side cephalic protection elastic portion be configured in described lean out the section of preventing near.

4. Pushchair as claimed in claim 3, is characterized in that,

Have near and a pair of described sunshade section that leans out in the section of preventing that can be arranged on a pair of described handle part with freely installing and removing,

Described sunshade section has: at least two osseous parts of reverse U shape roughly; The the first covering section that establishes between the osseous part of described roughly reverse U shape; And be arranged near the of a pair of described handle part and near the second covering section to covering between the rising wood of the osseous part of described roughly reverse U shape and described backrest elastic portion, described sunshade section can rotate in the installation site of the described described sunshade section that leans out the section of preventing, and having a multistage holding position, described multistage holding position comprises the position of the state that folding and described the first covering section of described the second covering section that remains on described sunshade section launches at least.

5. Pushchair as claimed in claim 1 or 2, is characterized in that,

Described trailing wheel axial region to be arranging continuously from rear supporting described side axial region and the mode that is arranged on the described front-wheel axial region on the extended line of this side axial region,

The end of the described trailing wheel section of being provided with of described trailing wheel axial region is towards the direction away from described front wheele part, and in the time of from the side, described trailing wheel axial region becomes the shape with mild roughly S font curve.

6. Pushchair as claimed in claim 1 or 2, is characterized in that,

Become the user by to draw the mobile band section of use, the structure that just described Pushchair can be folded on the mode near described handle part.

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