JP2016094048A - Baby stroller - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cushioning support structure which prevents a load of a burden in a basket for putting stuffs from being imposed on a cushioning means for elastically supporting a baby seat.SOLUTION: A basket attachment part 8 for placing a basket 3 for putting stuffs is attached to an upper position of a stroller body 1 with respect to an attachment position of the basket 3 for putting stuffs to the stroller body 1, for example to a lower end side intermediate part of a front leg rod 1a and a rear leg rod 1b of the stroller body 1. A structure in which a compression spring 12 is interposed in a coupling part which is positioned on an upper side of the stroller body 1 with respect to an attachment position of the basket attachment part 8 relative to the front leg rod 1a and the rear leg rod 1b and where the front leg rod 1a and the rear leg rod 1b are coupled to be vertically movable is adopted for elastically supporting a baby seat 2 including the upper side of the stroller body 1 from the coupling part.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a stroller provided with a buffer mechanism (suspension) that absorbs vibrations and shocks received by wheels from a road surface during movement so as not to be transmitted to a baby seat.

  Strollers (strollers) include devices with added features and functions to ensure safety, and those that can be folded in a compact form from the deployed state during use, making it easy to go out by car or store at home, etc. As is known, it basically comprises a vehicle body (body frame) having moving wheels around the undercarriage and a baby seat (baby carrier) on which an infant is placed.

In such a stroller, the following Patent Documents 1 and 2 describe a spring as a shock absorber that absorbs vibrations and shocks that are received when the wheel passes through unevenness or a step on the road surface during movement. There has been proposed a stroller provided on a wheel holder (caster holder) that is pivotally supported.
Patent Documents 3 and 4 listed below propose a stroller in which a luggage compartment for storing luggage such as drinks and personal items to be given to infants is arranged under a baby seat.

Japanese Patent Laid-Open No. 2001-277807 (refer to claim 1, paragraph 0014 and FIG. 1) Japanese Patent Laying-Open No. 2001-301628 (see paragraph 0016 and FIG. 1) JP 2004-161238 A (refer to claims, paragraphs 0024 to 0029 and FIGS. 1 and 5) Japanese Unexamined Patent Publication No. 2013-112086 (see paragraph 0019 and FIG. 1)

  By the way, the wheel holder provided with the buffer mechanism formed by interposing a spring between the bracket coupled to the vehicle body side described in Patent Document 1 and the link pivotally supporting the wheel is used as the luggage described in Patent Document 3. When the luggage bag is attached to the vehicle body and applied to the body of the stroller disposed under the baby seat, the spring of the wheel holder is positioned below the vehicle body relative to the attachment position of the luggage bag with respect to the vehicle body. Therefore, the load load of the load baggage is applied to the spring, and the spring causes a bottoming that the coils are brought into close contact with each other due to the load load of the load baggage and cannot be further contracted. The function (suspension function) cannot be achieved.

  In other words, in the case of a spring that absorbs vibration, shock, etc., the load of the load placed in the luggage compartment and the vibration / shock absorbing effect are determined by the spring constant (spring characteristics). For this reason, when the load load of the load in the luggage compartment exceeds the spring constant (numerical value) of the spring, the spring will not be able to perform a buffering function that causes the bottom to be in close contact between the coils and expands and contracts in response to vibration or impact. It becomes. Then, vibrations and shocks received by the wheels from the road surface are transmitted from the wheels to the vehicle body, and from the vehicle body to the baby seat, which gives the baby seat infants an unpleasant feeling such as a craggy feeling, May affect infants who do not have resistance in the first few months of life.

  In addition to the weight of the target infant (for example, infants from the age of 0 to 4 years of age) who are placed on the baby seat, the load load of the luggage compartment under the baby seat is the wheel around the vehicle body as described above. It is very difficult to select a spring with an appropriate spring constant (wire diameter, coil outer diameter, effective number of turns, etc.) that effectively extends and contracts in response to vibration and shock, etc., to effectively perform a buffer function by being hooked on the holder spring. It was difficult. In other words, since the load (capacity) of the baggage that can be put in the baggage bag varies widely depending on the user, the situation of use of the baggage bag is considered (assumed) without causing bottoming, The selection of an appropriate spring constant that fulfills the buffer function has been very difficult.

  The present invention was devised as an example of a problem to cope with the above-described conventional situation, and the load of the load on the load bag is not applied to the buffer means for elastically supporting the baby seat. Support structure, selection of appropriate spring constants that can effectively perform buffering functions according to vibration and impact, etc., and better cushioning performance for comfortable and comfortable infants to baby seats The purpose is to be able to carry it.

  In order to solve the above-described problems, the stroller according to the present invention provides means including at least the configurations according to the following independent claims.

A stroller comprising a vehicle body having wheels, a baby seat attached to the vehicle body, and a luggage compartment attached to the vehicle body and disposed under the baby seat,
A buffer means for elastically supporting the baby seat is attached to the vehicle body located above the vehicle body relative to the attachment position of the luggage compartment to the vehicle body.
Here, examples of the buffer means include springs, leaf springs, elastic members such as elastic rubber, and dampers.

  According to such a configuration, the buffer means is attached to the vehicle body part located above the vehicle body relative to the attachment position of the luggage container with respect to the vehicle body, so that the load load of the luggage in the luggage container is not applied to the buffer means. . That is, it is possible to provide a baby seat cushioning support structure that elastically supports the baby seat without being affected by the load load of the luggage compartment.

Further, a stroller comprising a vehicle body having wheels, a baby seat attached to the vehicle body, and a luggage compartment attached to the vehicle body and disposed under the baby seat,
A buffer means for elastically supporting the baby seat is interposed between the vehicle body and the baby seat positioned above the vehicle body with respect to the attachment position of the luggage compartment to the vehicle body. To do. In this case, a configuration is adopted in which the baby seat is elastically supported and held with respect to the vehicle body, or the buffer means is interposed between the vehicle body so as to be elastically suspended and held. It is preferable to do.

  According to such a configuration, since the buffer means is interposed between the vehicle body and the baby seat located above the vehicle body relative to the mounting position of the luggage container with respect to the vehicle body, Does not hang on the buffer. That is, it is possible to provide a baby seat cushioning support structure that elastically supports the baby seat without being affected by the load load of the luggage compartment.

  According to the present invention, it is possible to provide a baby seat cushioning support structure in which the load load of the luggage of the luggage compartment is not applied to the cushioning means. As a result, the buffer means effectively performs a buffer function that absorbs the vibration or shock by appropriately expanding and contracting according to the vibration or shock that the wheel receives from the road surface during the movement of the stroller without causing bottoming. Therefore, the infant can be comfortably and comfortably placed on the baby seat.

Further, according to the present invention, in addition to the above effects, selection of an appropriate spring constant that expands and contracts in response to vibration or impact, for example, selection of a spring constant such as a compression spring or a tension spring is placed on the baby seat. This can be done by considering only the weight of the target infant (for example, infants from the age of 0 to 4 years of age).
Thereby, it becomes possible to elastically support the baby seat with a buffer function adapted to vibrations and shocks, and more excellent cushion performance. In addition, the improved cushioning performance makes it possible for infants to ride comfortably and more comfortably on baby seats, which in turn gives rise to unpleasant sensations such as a rugged feeling that may affect infants a few months after birth. It is possible to realize and provide a stroller equipped with a baby seat cushioning mechanism that can be expected to have various effects such as elimination.

  Further, according to the present invention, it is possible to implement at a low cost by adopting the buffer support structure for the baby seat that elastically supports the baby seat by interposing the buffer means between the vehicle body and the baby seat. . In other words, a baby seat that can comfortably and comfortably put an infant by a manufacturing method in which a cushioning means is interposed between a car body having a well-known structure equipped with a luggage compartment and a baby seat that has been partially improved. A stroller equipped with a shock absorbing mechanism can be realized and provided.

It is explanatory drawing which shows roughly the whole structure of the stroller which concerns on the 1st Embodiment of this invention. It is principal part explanatory drawing which shows an example which interposed the coupling | bonding which can be moved up and down, and the buffering means of the leg coupling collar part of a collar attachment part, and the lower coupling collar part of a front leg collar. It is explanatory drawing which shows roughly the whole structure of the stroller which concerns on the 2nd Embodiment of this invention. It is principal part explanatory drawing which shows an example which interposed the buffer means between the armrest rod of the vehicle body, and the armrest part of the baby seat.

  Hereinafter, an embodiment of a stroller (pram) according to the present invention will be described in detail with reference to the drawings as appropriate. In addition, although embodiment of this invention contains the form of illustration, it is not limited only to this. That is, the present invention can be modified in various ways as long as it belongs to the technical scope.

  Here, the stroller is not particularly limited with respect to the frame form of the vehicle body. In addition, a three-wheel type including a single wheel (one wheel) on the front side and a pair of left and right wheels on the rear side, and a four-wheel type including a pair of left and right wheels on the front and rear are included. In the present embodiment, the four-wheel strollers A1 and A2 shown in FIGS. 1 and 3 will be described as an example. In the following description, the same or corresponding components are denoted by the same reference numerals, and redundant description is omitted.

[First Embodiment]
FIG. 1 is an explanatory view (side view) schematically showing the overall configuration of the stroller A1 according to the first embodiment of the present invention. The stroller A1 is roughly constituted by a vehicle body (main body frame) 1 having a pair of left and right front wheels 4 and rear wheels 5 on the front and rear sides of the undercarriage, and a baby seat (baby carrier) 2 on which an infant is placed. A luggage compartment 3 for placing luggage such as drinks to be given to infants and personal items is arranged under the baby seat 2.

≪Body 1≫
The vehicle body 1 includes a pair of left and right front leg rods 1a, a rear leg rod 1b, an armrest rod (armrest) 1c, a guard rod 1d for a guardian, and a connecting rod (a seat that also serves as a seat 2a described later on the baby seat 2). Frame and folding link member) 1e. And although illustration is abbreviate | omitted about a specific structural drawing (mechanism figure), the vehicle body 1 is provided with the folding mechanism so that it can fold compactly from the unfolded state at the time of use shown in FIG.

  The vehicle body 1 further includes a pair of left and right wheel holders (caster holders) 6 and 7 that are attached to the lower ends of the front leg rod 1a and the rear leg rod 1b by pivotally supporting the front wheel 4 and the rear wheel 5 in a freely swingable manner. There is provided a heel mounting portion 8 having four front and rear corners mounted and supported at the intermediate portion on the lower end side of the front leg heel 1a and the rear leg heel 1b.

  In such a configuration, the baby seat 2 is attached to the pair of left and right connecting rods 1e and / or the pair of left and right armrest rods 1c of the vehicle body 1. That is, the baby seat 2 is supported by the vehicle body 1 by attaching a seat 2a portion described later of the baby seat 2 to the connecting rod 1e and / or the armrest rod 1c.

≪Baby seat 2≫
The baby seat 2 is basically composed of a seat portion 2a on which an infant sits and a backrest portion 2b that holds the back and head of the infant. And although illustration is abbreviate | omitted about the concrete structure, the baby seat 2 can change the back inclination angle of the backrest part 2b with respect to the seat part 2a in steps, and also the backrest part 2b is seated. A reclining mechanism is provided so as to be substantially flat with the seating surface of the portion 2a. Thereby, it is comprised so that it can mount in the attitude | position (sitting position attitude | position) which made the infant sit down, and the position which laid down.

  The seat portion 2a and the backrest portion 2b are formed so as to have cushioning properties as a whole by, for example, a seat frame member and a seat member made of a strong cloth having flexibility. As a result, the baby seat 2 is attached to the vehicle body 1 in a seat structure that stably holds the infant with appropriate cushioning properties.

  In the example shown in FIG. 1, the backrest portion 2b of the baby seat 2 is shown as being supported by the hand push rod 1d. It is optional, for example, to adopt a general form in which the lower end sides of the backrest frame are connected and supported by the left and right brackets provided on the lower end sides of the heel 1d.

≪ 籠 mounting part 8≫
The bag attaching portion (bag arranging portion) 8 is a flat base on which the luggage compartment 3 is attached and placed.
The heel mounting portion 8 is a plane having such a size that the four front and rear corners are mounted and supported on the middle portions of the lower ends of the pair of left and right front leg heels 1a and rear leg heel 1b around the undercarriage of the vehicle body 1 in the unfolded state. The framework is formed in a rectangular shape.
If it demonstrates concretely, the heel attachment part 8 is equipped with the leg coupling | bonding collar part 9 couple | bonded so that a vertical movement is possible in the lower end side intermediate part of the front leg collar 1a and the rear leg collar 1b. The leg coupling flange 9 is formed in an appropriate length (height) having a flange outer diameter corresponding to the flange inner diameter (pipe inner diameter) of the front leg flange 1a and the rear leg flange 1b. Can be mounted vertically.

  And the wheel holders 6 and 7 of the front wheel 4 and the rear wheel 5 are attached to the lower end of the leg coupling flange part 9, and the lower coupling formed vertically downward on the front leg collar 1a and the rear leg collar 1b on the upper end side thereof. The collar portion 10 is coupled to be vertically movable by an external fit. As a result, the heel mounting portion 8 is provided with leg coupling heel portions 9 at the four front and rear corners that are coupled to the lower coupling heel portion 10 of the front leg heel 1a and the rear leg heel 1b around the vehicle body so as to move up and down. The rectangular shape is formed in a plan view having a size to which the luggage compartment 3 is attached and placed.

  It should be noted that the heel mounting portion 8 is configured to be compacted following the movement of the front leg heel 1a and the rear leg heel 1b when the vehicle body 1 is folded in a compact state from the deployed state. And the luggage compartment 3 attached on the saddle attachment portion 8 is also configured to be compact.

That is, although a part of the specific mechanism diagram (structure diagram) is omitted, for example, in the heel mounting portion 8, the leg coupling ridge portions 9 at the four front and rear corners are bridged diagonally in a plan view. An X-type frame made up of two link members (such as a strip and a pipe) is provided. The X-type frame itself can be rotated with the intersection center portion (shaft support portion) as a fulcrum, and the end portions of the two link members are respectively attached to the leg coupling flanges 9 at the four front and rear corners. The hinge member is connected and supported so as to be rotatable and horizontally slidable.
Further, the two link members of the X-shaped frame are formed such that the length from the center of the intersection to the end can be varied. As a result, the heel mounting portion 8 can be folded in the front-rear direction of the vehicle body 1 and, if necessary, in the vehicle width direction, and follows the movement of the front leg rod 1a and the rear leg rod 1b when the vehicle body 1 is folded. And can be folded compactly.

On the other hand, the luggage compartment 3 is configured to be variable from a bucket state having flexibility. Although the illustration of a specific mechanism diagram (structure diagram) is omitted, the baggage trough 3 includes, for example, four four-corner upright members (bars) that are attached to the two link members of the saddle attachment portion 8. The four horizontal members attached between the upper ends of the four corner upright members and a storage body sewn in a bag shape having an upper surface opening from a flexible fabric or mesh fabric. The storage body is sewn so that each edge of the opening is wound around each horizontal member, and is attached to each horizontal member in a suspended manner. Each horizontal member has an end portion rotatably connected to an upper end of each four-corner upright member, and a central portion is formed so as to be bendable inwardly or outwardly in a V-shape.
As a result, the baggage bag 3 can be foldable in a direction in which the upper surface opening is reduced and closed by the movement of the bag mounting portion 8 that changes according to the folding of the vehicle body 1, and is compactly folded when the vehicle body 1 is folded. It is.

  The horizontal member is an opening edge member for opening and holding the opening (opening of the storage body) of the luggage container 3 that opens in an upward quadrangular shape, and is formed between the four four-corner upright members. This is not particularly necessary when the opening can be held open. Also, a flexible member such as a strong string can be used as the horizontal member.

  In such a configuration, the front joint 4 including the front wheels 4 and the rear wheels 5, and the front joints 1a which are coupled to the leg joints 9 so as to be movable up and down by external fitting. Further, a buffer means described later is interposed between the lower joint flange portion 10 of the rear leg rod 1b and the lower joint of the front leg rod 1a and the rear leg rod 1b to the leg joint flange portion 9 of the rod attachment portion 8 A shock-absorbing support structure is provided that elastically supports and holds the upper side of the vehicle body 1 to which the baby seat 2 is attached and supported from the joint portion of the collar portion 10 that can move up and down.

≪Buffer means≫
Next, a buffer means for absorbing a vibration or shock received from the road surface by the front wheel 4 and the rear wheel 5 during the movement of the stroller A1 and performing a buffer function that prevents the vibration or shock from being transmitted to the baby seat 2 on which the baby rides. explain.
FIG. 2 is a main part explanatory view (an enlarged vertical view) showing an example in which a buffer means is interposed between a coupling between the front and right leg coupling collars 9 of the collar mounting part 8 and the lower coupling collar 10 of the front leg collar 1a. ). In addition, although the specific example by the principal part explanatory drawing is abbreviate | omitted, it is fundamental also in the coupling | bonding side of the rear coupling | bonding collar part 9 of the rear side right and left leg coupling | bond part 8 and the lower coupling collar part 10 of the rear leg collar 1b. Is the same as the front leg 1a side.

The buffer means includes a front leg collar 1a and a rear leg collar 1b that are coupled to the leg coupling collar portions 9 at the four front and rear corners of the collar mounting portion 8 so as to be placed on the upper side of the vehicle body 1 and the baby seat 2. Appropriate buffering according to the vibration and impact received from the road surface with the spring constant selected mainly considering the weight of infants (for example, infants from the age of 0 to 4 years of age) It is formed to fulfill the function.
As shown in FIG. 2, the buffer means includes a shaft member 11 and a compression spring (compression coil spring) 12 that is coaxially interposed around the shaft of the shaft member 11.

The shaft member 11 is formed so that the four-legged leg coupling collar 9 of the collar mounting section 8 and the lower leg coupling collar 10 of the front leg collar 1a and the rear leg collar 1b are movably coupled with each other. It is coaxially attached between the inside with the coupling collar part 10.
As shown in FIG. 2, the shaft member 11 includes a lower connecting member 13 and an upper connecting member 14 in which upper and lower end portions having screw portions are fixedly embedded in the leg connecting flange portion 9 and the lower connecting flange portion 10. The shaft sliding hole 15 is formed so as to be screwed and fastened by the nut member 16.

The compression spring 12 is set to an appropriate spring constant (a wire diameter, a coil outer diameter, an effective number of turns, etc.) that effectively performs a buffering function according to vibrations or impacts received by the front wheel 4 and the rear wheel 5 from the road surface. That is, as in the prior art described above, the spring constant set in consideration of only the weight of the target infant riding on the baby seat 2 without considering the influence of the load of the luggage put in the luggage compartment 3 at all. The compression spring 12 can be used.
Accordingly, as shown in FIG. 2, the compression spring 12 is connected to the lower connecting member 13 in the four-corner leg coupling collar 9 of the collar attachment section 8, and the lower coupling collar 10 in the front leg collar 1a and the rear leg collar 1b. Between the upper connecting member 14 and the upper connecting member 14 coaxially around the axis of the shaft member 11, the front corner 4 and the rear wheel 5, including the front wheel 4 and the rear corner 5. The front leg rod 1a and the rear leg rod 1b are elastically supported and held by an appropriate spring constant that effectively performs a buffering function in response to an impact or the like. That is, the baby seat 2 can be elastically supported and held by the buffer support structure in which the load load of the luggage of the luggage compartment 3 disposed under the baby seat 2 is not applied to the compression spring 12.

[Operation of First Embodiment]
Next, the stroller A1 according to the first embodiment of the present invention having the detailed configuration will be briefly described. Here, description will be made with reference to FIGS. 1 and 2 as appropriate.
As shown in FIG. 1 and FIG. 2, according to the stroller A1 according to the first embodiment, the front wheel 4 and the rear wheel 5 are provided at the lower end, and the upper end side is the lower joint flange of the front leg hook 1a and the rear leg hook 1b. A leg coupling flange 9 that is coupled to the lower coupling flange 10 and elastically supports and holds the upper side of the vehicle body 1 from the lower coupling flange 10 by a compression spring 12 between the lower coupling flange 10 and the lower coupling flange 10. The baggage bag 3 is mounted and disposed on the bag mounting part 8 having the baggage. That is, the compression spring 12 has a cushioning support structure for the baby seat 2 in which the load load of the load of the luggage compartment bag 3 attached and arranged on the bag attachment portion 8 under the baby seat 2 is not applied to the compression spring 12. No bottoming occurs due to the load of the luggage in the luggage compartment 3.

  Then, when the infant is placed on the baby seat 2 to take the infant to the outdoors and the weight of the infant acts on the vehicle body 1, the four-legged joint coupling portion 9 of the heel mounting portion 8, under the front leg heel 1 a and the rear leg heel 1 b The compression spring 12 interposed between the side coupling flanges 10 contracts moderately. When vibrations or shocks received by the front wheels 4 and the rear wheels 5 act on the compression springs 12 when passing through unevenness or steps on the road surface during movement, the compression springs 12 expand and contract appropriately according to the vibrations and impacts. The buffer function that absorbs vibrations and shocks is surely achieved.

As described above, according to the stroller A1 according to the first embodiment of the present invention, vibrations, impacts, and the like that the front wheel 4 and the rear wheel 5 receive from the road surface during movement of the luggage bag 3 are attached and placed. The joint portion (the four corner leg joint flange portion 9 of the rod attachment portion 8 and the lower joint flange portion 10 of the front leg rod 1a and the rear leg rod 1b) which is located on the upper side of the vehicle body 1 relative to the attachment position of the attachment portion 8 to the vehicle body 1 And is absorbed by a compression spring 12 that elastically supports and holds the baby seat 2.
As a result, the front wheel 4 and the rear wheel 5 are appropriately expanded and contracted according to vibrations and shocks received from the road surface during the movement of the stroller A1, and effectively perform a buffer function to absorb the vibrations and shocks. Can be reliably prevented from being transmitted. Therefore, it is possible to comfortably and comfortably place the infant on the baby seat 2 and, as a result, the problem of giving an unpleasant sensation such as a jerky feeling to the infant's body that does not have resistance for several months after birth is certain. Thus, the baby stroller A1 having a cushioning mechanism for the baby seat 2 that can be eliminated can be realized.

[Second Embodiment]
Next, a stroller A2 according to a second embodiment of the present invention will be described.
FIG. 3 is an explanatory view (side view) schematically showing the overall configuration of the stroller A2 according to the second embodiment of the present invention. FIG. 4 shows an armrest 1c of the vehicle body 1 and an armrest portion of the baby seat 20. 21 is an explanatory view (longitudinal enlarged view) of a main part showing an example in which a buffer means is interposed between the two and 21. FIG.
In this embodiment, a buffer means for elastically supporting and holding the baby seat 20 is interposed between the vehicle body 1 and the baby seat 20 located above the vehicle body 1 relative to the attachment position of the luggage carrier 30 to the vehicle body 1. Do it. That is, as shown in FIGS. 3 and 4, the baby seat 20 is provided by interposing a buffer means between a pair of left and right armrest rods 1 c of the vehicle body 1 and a pair of left and right armrest portions 21 described later of the baby seat 20. This is a buffer support structure for the baby seat 20 that is elastically supported and held by the vehicle body 1.

  In such a cushioning support structure for the baby seat 20, the vehicle body 1 and the luggage compartment 30 are formed in a known form. That is, the vehicle body 1 has a configuration in which wheel holders (caster holders) 6 and 7 that pivotally support the front wheels 4 and the rear wheels 5 are attached to lower ends of the front leg rod 1a and the rear leg rod 1b. As shown in FIG. 4, the baggage bag 30 disposed below the baby seat 20 is attached in a hammock shape in which the upper surface opening side is suspended from a pair of left and right front leg rods 1 a and rear leg rods 1 b of the vehicle body 1. It is sewn in the shape of a bag with an upper surface opening from a flexible fabric or mesh fabric.

≪Baby seat 20≫
In such a configuration, the baby seat 20 is formed of a material having appropriate rigidity, and a seat portion 20a integrally including a pair of left and right armrest portions 21, and a backrest portion sewn using a known seat member or the like. 20b. The seat portion 20a is integrally formed using a material such as a resin material, and includes side plates 23 that rise integrally from both sides of the seat plate 22 made of a substrate. The armrest part 21 is provided.

  And although illustration is abbreviate | omitted about a specific structural form, the seat board 22 is covered with the buffer pad, the sheet | seat skin material, etc. FIG. Further, both side plates 23 and armrests 21 are also covered with a sheet skin material or the like as required, and are formed so as to be able to hold the buttocks of an infant to be placed with appropriate cushioning properties. In this case, the sheet | seat member which forms the backrest part 20b can be extended, and the extension part can be made into the sheet | seat skin material which covers the seat board 22 of the seat part 20a.

≪armrest 21≫
As shown in FIG. 4, the armrest portion 21 has a downward opening width (an armrest that can be fitted to the armrest rod 1 c of the vehicle body 1 so that the upper end side of the both side plates 23 rising from both sides of the seat plate 22 can be moved up and down. By being integrally formed so as to be folded outward at the heel width of the heel 1c, it is provided on the upper end side of the both side plates 23 in a substantially U shape with a downward opening in a longitudinal sectional view.
As a result, the armrest portion 21 is engaged with the armrest rod 1c of the vehicle body 1 so as to be vertically movable from above, and by the buffering means interposed between the armrest rod 1c and the armrest rod 1c. The entire seat 20a is elastically supported and held on the armrest 1c of the vehicle body 1.

≪Buffer means≫
As with the detailed description of the first embodiment, the buffer means is suitable for expanding and contracting according to vibrations and impacts received from the road surface with a spring constant selected only considering the weight of the target infant to be placed on the baby seat 20. It is formed so as to perform a proper buffer function.
This buffer means elastically supports and holds the armrest portion 21 of the baby seat 20 on the armrest rod 1c of the vehicle body 1, and as shown in FIG. And a compression spring (compression coil spring) 25 interposed on the same axis.

The shaft member 24 is attached over the armrest 1c and the armrest 21 so that the armrest 21 of the baby seat 20 is connected to the armrest 1c of the vehicle body 1 so as to be movable up and down.
As shown in FIG. 4, the shaft member 24 has an upper end portion fixed to the inner upper surface portion of the armrest portion 21 by screwing, and a lower half portion side passing through the shaft sliding hole 26 of the armrest rod 1c. The nut member 27 is screwed and fastened on the back side (lower surface side) of the sliding hole 26. Thereby, the armrest part 21 of the baby seat 20 is fitted and engaged with the armrest rod 1c of the vehicle body 1 so as to be movable up and down from above.

The compression spring 25 is set to an appropriate spring constant (wire diameter, coil outer diameter, effective number of turns, etc.) that effectively performs a buffering function according to vibrations or shocks received by the front wheels 4 and the rear wheels 5 from the road surface.
Thereby, the compression spring 25 is coaxially interposed around the axis of the shaft member 24 between the inner ceiling portion of the armrest portion 21 of the baby seat 20 and the armrest rod 1 c of the vehicle body 1, thereby On the armrest 1c, the baby seat 20 is elastically supported and held with an appropriate spring constant that effectively performs a buffering function according to vibration or impact. That is, the baby seat 20 can be elastically supported and held on the vehicle body 1 by a buffer support structure in which the load load of the luggage of the luggage compartment 30 disposed below the baby seat 20 is not applied to the compression spring 25.

[Operation of Second Embodiment]
Next, a stroller A2 according to the second embodiment of the present invention having the detailed configuration will be briefly described. Here, description will be made with reference to FIGS. 3 and 4 as appropriate.
As shown in FIGS. 3 and 4, according to the stroller A <b> 2 according to the second embodiment, on the armrest rod 1 c of the vehicle body 1 located above the vehicle body 1 with respect to the attachment position of the luggage compartment rod 30 to the vehicle body 1. The armrest portion 21 integrally provided continuously from the seat portion 20a of the baby seat 20 is elastically supported and held by a compression spring 25. That is, the compression spring 25 is configured as a cushioning support structure for the baby seat 20 so that the load load of the baggage of the luggage compartment 30 disposed under the baby seat 20 is not applied to the compression spring 25. Does not cause bottoming due to the load.

  When the infant is placed on the baby seat 20 to take the infant outdoors, and the weight of the infant acts on the baby seat 20, the baby seat 20 is interposed between the armrest portion 21 of the baby seat 20 and the armrest 1c of the vehicle body 1. The compression spring 25 is appropriately contracted. When vibrations or shocks received by the front wheels 4 and the rear wheels 5 act on the compression springs 25 when passing through unevenness or steps on the road surface during movement, the compression springs 25 expand and contract appropriately according to vibrations and impacts. This effectively functions as a buffer to absorb vibrations and shocks.

As described above, according to the stroller A2 according to the second embodiment of the present invention, vibrations and impacts that the front wheel 4 and the rear wheel 5 receive from the road surface during the movement are from the attachment position of the luggage compartment 30 to the vehicle body 1. Is also interposed between the armrest 1c of the vehicle body 1 located on the upper side of the vehicle body 1 and the armrest portion 21 of the baby seat 20, and is absorbed by a compression spring 25 that elastically supports and holds the baby seat 20.
As a result, the front wheel 4 and the rear wheel 5 are appropriately expanded and contracted according to vibrations and shocks received from the road surface during the movement of the stroller A2, and effectively perform a buffer function to absorb the vibrations and shocks. Can be reliably prevented from being transmitted. Therefore, it is possible to comfortably and comfortably place the infant on the baby seat 20, and as a result, the problem of giving an unpleasant sensation such as a jerky feeling to the infant's body that does not have the resistance of several months after birth is certain. Thus, the baby stroller A2 having a cushioning mechanism for the baby seat 20 that can be eliminated is realized.

[Modification]
As mentioned above, although the form for implementing this invention has been demonstrated with reference to drawings, the concrete structure of this invention is not limited to these embodiments at all, and the range which does not deviate from the summary of this invention Even if there is a design change or the like, it is included in the invention.
In addition, the embodiments shown in each drawing can be combined with each other unless there is a particular contradiction or problem in the purpose and configuration. Moreover, the description content of each figure can become independent embodiment, respectively, and embodiment of this invention is not limited to one embodiment which combined each figure.

  For example, in the stroller described in detail in the first embodiment, the mounting position of the buffer means on the vehicle body may be anywhere above the vehicle body relative to the mounting position of the luggage compartment with respect to the vehicle body. In other words, the load of the luggage placed in the luggage compartment is not applied to the buffering means, and the baby seat can be elastically supported together with the upper side of the vehicle body to effectively perform a buffering function against vibrations and shocks. If it is a position, the mounting position of the buffer means may be anywhere on the vehicle body.

  In addition to the springs (coil springs) described in detail in the first and second embodiments, the buffer means includes an elastic member such as a plate spring and elastic rubber, and a combination (composite) of spring and elastic rubber, or air. A damper (buffer) made of a combination with a spring or the like can be used.

Further, in the stroller described in detail in the first embodiment, the middle of the front leg cage and the rear leg cage located above the vehicle body with respect to the lower leg side middle portion of the front leg cage and the rear leg cage at the four front and rear corners of the collar attachment portion. The portion is coupled to, for example, a joint structure that can be changed into a dogleg shape, and a buffer means is attached so as to constantly urge the hook-like joint portion in the opening direction or the closing direction.
In other words, the front and rear heels of the front and rear wheel holders and the lower heel part to which the heel mounting part is attached, and the upper heel part to which the hand barb, the armrest heel and the connecting heel are foldably connected are connected. It is formed from two members, and the lower end side of the upper heel part and the upper end side of the lower heel part are coupled to a joint structure that can be changed into a dogleg shape. For example, the lower collar part is connected to the joint structure that can be changed to the lower part of the upper collar part in a dogleg shape by pivotally attaching the middle part of the lower collar part to the lower edge of the upper collar part. . A tension spring (tensile coil spring), a damper, or the like is used as a buffer means for constantly urging the released upper end in a direction that always pulls it toward the upper flange side between the upper release end of the lower flange and the middle portion of the upper flange. By attaching the, a baby seat cushioning support structure that prevents vibrations, shocks, etc. from being transmitted to the baby seat without causing any load load on the luggage to be placed in the luggage compartment to be applied to the tension spring.

  Further, in the stroller described in detail in the second embodiment, a baby seat cushioning support structure in which the baby seat is elastically supported and held by the compression spring is interposed between the armrest and the armrest of the vehicle body. As described above, a baby seat cushioning support structure for elastically supporting and holding the baby seat on the vehicle body can be obtained by interposing a compression spring between the seat portion of the baby seat and the connecting rod of the vehicle body.

Further, in the stroller described in detail in the second embodiment, as another method for elastically supporting the baby seat on the vehicle body via the buffering means, a tension spring (between the armrest rod of the vehicle body and the seat portion of the baby seat) By adopting a configuration in which a tension coil spring is interposed, a baby seat cushioning support structure in which the baby seat is elastically suspended from the vehicle body can be obtained.
In this case, a suspension part projecting outward is provided on both side plates rising from the seat part (seat plate) in the lower part of the armrest part of the baby seat, and the suspension part is suspended from the armrest rod of the vehicle body. The shaft member is suspended so as to move up and down, and a tension spring is interposed between the armrest rod and the suspension portion around the shaft of the suspension shaft member so as to elastically hold the suspension portion. The form is preferred. Also, the baby seat cushioning support structure by this hanging method can be realized for a connecting rod of a vehicle body.

A1, A2 Stroller 1 Car body 1a Front leg kit 1b Rear leg kit 1c Armrest kit 1d Hand pushing kit 1e Linking kit 2,20 Baby seat 2a, 20a Seat 2b, 20b Backrest unit 3,30 Luggage compartment 4 Front wheel 5 Rear wheel 6 , 7 Wheel holder 8 籠 mounting portion 9 Leg coupling heel portion 10 Lower coupling heel portion 11, 24 Shaft member (buffer means)
12, 25 Compression spring (buffering means)
21 Armrest

Claims (3)

A vehicle body having wheels;
A baby seat attached to and supported by the vehicle body;
A stroller provided with a luggage compartment attached to the vehicle body and disposed under the baby seat,
A stroller characterized in that a buffer means for elastically supporting the baby seat is attached to the vehicle body located above the vehicle body relative to the attachment position of the luggage compartment to the vehicle body. A vehicle body having wheels;
A baby seat attached to and supported by the vehicle body;
A stroller provided with a luggage compartment attached to the vehicle body and disposed under the baby seat,
A buffer means for elastically supporting the baby seat is interposed between the vehicle body and the baby seat positioned above the vehicle body with respect to the attachment position of the luggage compartment to the vehicle body. Baby stroller.   The said buffer means is interposed between the said vehicle body and the said baby seat so that this baby seat may be elastically supported and hold | maintained, or it suspends and hold | maintains. stroller.

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