CN112203921B - stroller - Google Patents

Abstract

The present invention relates to a stroller (10) which can be deformed between an unfolded state and a folded state, the stroller (10) comprising: a grip (15); a 1 st link member (31) rotatably connected to the grip (15); a rear leg (24) rotatably connected to the 1 st link member (31); a front leg (22) rotatably connected to a rear leg (24), the rear leg (24) having: a connection base (24 a) connected to the 1 st link member (31) and the front leg (22); and a rear leg portion (24 b) extending from the connection base portion (24 a) between a connection position to the 1 st link member (31) and a connection position to the front leg (22).

Description

stroller

technical field

The present invention relates to a stroller capable of being transformed between an unfolded state and a folded state.

Background technique

Baby carriages (for example, JP2004-237784A) having handles, armrests, front legs and rear legs are widely available. In this stroller, the rear end of the armrest is swingably connected to the handle. The armrest has a pair of side wall parts and an upper wall part connected between the pair of side wall parts, and opens downward as a whole. The rear legs and the front legs extend into the armrest from below and are pivotally connected to the armrest at their upper ends. Such front legs and rear legs can rotate in a relatively large angle range relative to the armrest, thereby reducing the size of the stroller in a folded state.

However, due to restrictions on the design of the stroller, the seat configuration, etc., it may not be possible to adopt a shape that opens downward as the shape of the armrest. On the other hand, miniaturization of the size in the folded state is a common problem of baby carriages, and in order to solve this problem, it is effective to expand the range of rotation between constituent elements such as front legs and rear legs.

Contents of the invention

The present invention has been made in consideration of the above-mentioned problems, and an object of the present invention is to reduce the size of the baby carriage in a folded state by increasing the rotatable angle between components.

The first stroller of the present invention is deformable between an unfolded state and a folded state, and has:

grip;

a first link member rotatably connected to the handle;

the rear leg is rotatably connected to the first link member;

a front leg rotatably connected to the rear leg,

The rear leg has: a connection base connected to the first link member and the front leg; a rear leg connected to a connection position of the first link member from the connection base and connected to the protrude between the connection points of the front legs.

In the first stroller according to the present invention, the connection base may have a longitudinal direction that is not parallel to a direction in which the rear legs protrude.

In the first stroller of the present invention, the first link member may include at least a part of the connection position to the rear leg, the connection base of the rear leg, and the front leg. At least a portion including the connection points to the rear legs is arranged in a line.

The first stroller of the present invention may further include: a second link member rotatably connected to the handle and the rear leg; a third link member rotatably connected to the front leg , the handle or the second link member.

In the first stroller of the present invention, the front legs may include a front leg frame having a pair of front leg side parts connected to the rear legs and a front leg connecting the pair of front leg side parts. A connection portion; a plate member supported by at least a part of a connection point to the front leg connection portion including the front leg side portion and the pair of front leg side portions.

In the first stroller of the present invention, the board member may include: a gentle slope portion supported by at least the front leg connecting portion; a steep slope portion connected to the gentle slope portion from behind, and the slow slope portion The slope portion and the steep slope portion are inclined upward toward the rear, and the slope angle of the gentle slope portion relative to the running surface is smaller than the slope angle of the steep slope portion relative to the running surface.

The first stroller of the present invention may further include a front wheel holder supported by the front legs, including the front wheels, and the gentle slope portion may be located above the front wheels.

The 2nd stroller of the present invention may also have:

A stroller body having the handle, the front legs, the rear legs, the first link member, the second link member, and the third link member;

a seat, supported by the stroller body,

The first link member may have a holding member for detachably holding the seat.

According to the present invention, the size of the baby carriage in the folded state can be reduced by increasing the rotatable angle between the components.

Description of drawings

FIG. 1 is a diagram illustrating a first embodiment of the present invention, and is a perspective view showing a baby carriage in an unfolded state.

Fig. 2 is a side view of the stroller shown in Fig. 1 .

Fig. 3 is a perspective view of a link member of the stroller shown in Fig. 1 .

Fig. 4 is a side view of the link member shown in Fig. 3 .

5 is a cross-sectional view of the center plane in the width direction along the front-back direction of the baby carriage of the panel member of the baby carriage shown in FIG. 1 .

Fig. 6 is a side view showing a folded state of the stroller shown in Fig. 1 .

Fig. 7 is a view corresponding to Fig. 4 and is a side view of a link member of the stroller shown in Fig. 5 .

Fig. 8 is a diagram illustrating a second embodiment of the present invention, and is a perspective view showing the baby carriage in an unfolded state.

Fig. 9 is a side view of the stroller shown in Fig. 8 .

Fig. 10 is a perspective view of a connection portion between a baby carriage body and a seat in the baby carriage shown in Fig. 8 .

Fig. 11 is a perspective view showing a holding member attached to the stroller main body shown in Fig. 10 .

Fig. 12A is a perspective view showing a connection member of the seat shown in Fig. 10 .

Fig. 12B is a diagram showing the inside of the connection member shown in Fig. 12A.

Fig. 12C is a diagram showing the inside of the connection member shown in Fig. 12A.

Fig. 13 is a side view showing a folded state of the stroller shown in Fig. 8 .

Fig. 14 is a diagram illustrating a third embodiment of the present invention, and is a perspective view showing the baby carriage in an unfolded state.

Fig. 15 is a side view showing a child seat mounted on a seat of a vehicle.

Fig. 16 is a side view showing the adapter held by the holding member and the child seat supported by the adapter.

Fig. 17 is a perspective view showing the overall configuration of the adapter.

Fig. 18A is a diagram showing the inside of a connection member.

Fig. 18B is a diagram showing the inside of the connecting member.

Fig. 19 is a side view showing a folded state of the stroller shown in Fig. 14 .

Detailed ways

<First Embodiment>

Hereinafter, a first embodiment of the present invention will be described with reference to the drawings.

First, the overall configuration of the stroller 10 will be described with reference to FIGS. 1 and 2 . The overall configuration of the stroller 10 is shown in FIGS. 1 and 2 . As shown in FIG. 1 , the baby carriage 10 in the first embodiment has a generally symmetrical structure about a center plane in the width direction along the front-rear direction. As shown in FIGS. 1 and 2 , the stroller 10 has a stroller body 11 constituting a frame, and a seat 40 supported by the stroller body 11 . In addition, a canopy 100 is provided on the stroller body 11 to protect infants sitting on the seat 40 from sunlight and wind.

Next, the overall configuration of the stroller main body 11 will be described with reference to FIGS. 1 to 7 . FIG. 3 shows the link components of the stroller body 11 in an unfolded state. FIG. 4 is a side view of the link member shown in FIG. 3 viewed from the inside of the stroller 10 along the width direction of the stroller 10 . In addition, in FIG. 5, the cross section along the said width direction center plane of the front leg 22 is shown. In addition, FIG. 6 shows the stroller 10 in a folded state. 7 is a diagram corresponding to FIG. 4 , and is also a side view of the link member shown in FIG. 6 viewed from the inside of the stroller 10 along the width direction of the stroller 10 .

As is widely popularized (for example, JP2005-082082A and JP2006-117012A), the stroller main body 11 is configured to be deformable between an unfolded state and a folded state, and can be folded from the unfolded state shown in FIGS. The folded state shown in 6, and can be unfolded from the folded state to the unfolded state. The stroller main body 11 includes a handle 15, and an operator (guardian) can drive the stroller 10 so that the infant faces forward in the traveling direction by holding the handle 15 from the back side of the infant and steering the stroller 10 .

In addition, in this specification, unless otherwise specified, the terms "front", "rear", "upper", "lower", "front-rear direction" and "up-down direction" with respect to the baby carriage 10 and the baby carriage main body 11 The terminology of "" means "front", "rear", "upper", "lower", "front-rear direction" and "up-down direction" based on the operator who manipulates the baby carriage 10 in the unfolded state. More specifically, the "front-back direction" of the stroller 10 refers to the direction connecting the lower left and upper right of the paper in FIG. 1 , and corresponds to the left-right direction of the paper in FIG. 2 . In addition, unless otherwise specified, “front” refers to the side facing the operator operating the stroller 10 , and the lower left side of the page in FIG. 1 and the left side of the page in FIG. 2 are the front side of the stroller 10 . On the other hand, the "up and down direction" of the stroller 10 refers to a direction perpendicular to the front-rear direction and perpendicular to the ground contact surface (running surface) S. As shown in FIG. Therefore, when the ground plane is a horizontal plane, the "up and down direction" means the vertical direction. In addition, the "width direction" or "vehicle width direction" means a lateral direction, and is a direction perpendicular to any of the "front-rear direction" and the "up-and-down direction". Furthermore, "right" and "left" also mean "right" and "left" in the horizontal or width direction with respect to the operator handling the stroller 10, respectively.

In addition, in this specification, unless otherwise specified, the terms "up", "down" and "up and down" with respect to the folded baby carriage 10 and the stroller main body 11 indicate that the front wheels of the baby carriage 10 The "up", "down" and "up and down directions" are based on the grounded state of the rear wheel (self-standing state). In addition, unless otherwise specified, the terms "width direction", "vehicle width direction", "right" and "left" with respect to the baby carriage 10 and the baby carriage main body 11 in the folded state indicate that they correspond to those in the unfolded state. "Width direction", "vehicle width direction", "right" and "left" directions and sides of the baby carriage 10 . In addition, the term "front-rear direction" with respect to the folded baby carriage 10 and the baby carriage main body 11 is a direction perpendicular to any of the "up-down direction" and the "width direction", and corresponds to the direction on the paper in FIG. 6 . The left-right direction of the face. In addition, unless otherwise specified, "front" refers to the side where the front leg 22 described later is located, and the left side of the page in FIG. 6 is the front side of the stroller 10 . In addition, "rear" means the side where the handle 15 is located, and the right side of the page in FIG. 6 is the rear side of the stroller 10 .

As shown in FIG. 1 , in addition to the handle 15, the stroller main body 11 has: a front leg 22 including a pair of front leg side portions 23a arranged left and right; a pair of rear legs 24 arranged left and right; A pair of first link members 31 serving as side frame members; a pair of second link members 32 and a pair of third link members 33 arranged left and right, respectively. As shown in FIGS. 1 and 2 , the front leg 22 has a front leg frame 23 including the aforementioned pair of front leg side portions 23 a and a front leg connecting portion 23 b connecting the pair of front leg side portions 23 a. In addition, the front leg 22 has a plate member 60 supported by the front leg frame 23 . Front wheel holders (casters) 25 including front wheels 25 a are provided at the lower ends of the front leg frames 23 , and rear wheels 26 are provided at the lower ends of the rear legs 24 . Moreover, the stroller main body 11 supports the seat 40 which is arrange|positioned between a pair of front leg side part 23a, and is arrange|positioned between a pair of rear leg 24. As shown in FIG. In addition, in the illustrated example, the stroller 10 is constituted as a tricycle having one front wheel 25a and two rear wheels 26, but it is not limited thereto, for example, as shown in FIG. It is a four-wheeled vehicle having two front wheels 25 a and two rear wheels 26 .

As shown in FIG. 1 , in the present embodiment, the handle 15 includes a pair of handle side portions 15a arranged left and right, and a handle middle portion 15b connected between the pair of handle side portions 15a, and has a complete structure as a whole. Roughly U-shaped. In the unfolded baby carriage 10 , the lower end portion of the handle 15 is engaged with the engaging member 17 provided at the middle portion of the rear leg 24 . The relative rotation of the handle 15 and the rear leg 24 is thereby limited.

As shown in FIG. 1 , the handle 15 has an operating part 18 slidably provided on the side part 15a of the handle, and a remote operating device provided on the middle part 15b of the handle to remotely operate the sliding operation part 18 18a. The operating member 18 is biased downward (on the end side of the U shape) by a spring (not shown) provided in the grip side portion 15a. As shown in FIG. 3 , the operation member 18 has a convex portion 18 b protruding toward the second link member 32 in the width direction of the stroller 10 . The convex part 18b is linked with the locking member 19 mentioned later, and maintains the stroller 10 in an unfolded state or a folded state.

As shown in FIGS. 1 and 2 , a pair of first link members 31 is rotatably (swingably) connected to the middle portion of the handle side portion 15a disposed on the corresponding side (left or right). As shown in FIG. 4 , the first link member 31 is connected to the handle side portion 15 a via a shaft member 51 extending in the width direction of the stroller 10 at its rear portion. In the illustrated example, the first link member 31 is a straight rod-shaped member, but it is not limited thereto. Various shapes may be given to the first link member 31 . For example, like the conventional armrest described as the prior art, the first link member 31 may have a pair of side walls and an upper wall connecting the pair of side walls, and may be configured downward as a whole. Open your mouth. Thereby, the design freedom of the stroller 10 can be improved, and the aesthetic appearance can be effectively improved.

As shown in FIGS. 1 and 2 , the rear leg 24 has a connection base 24 a constituting the upper end thereof, and a rear leg 24 b protruding from the connection base 24 a. The rear wheel 26 is provided at the lower end of the rear leg part 24b.

As shown in FIG. 1 , the connection base 24 a is rotatably (swingably) connected to the first link member 31 arranged on the corresponding side (left or right). In addition, the connecting base portion 24a is rotatably (swingably) connected to the front leg side portion 23a disposed on the corresponding side (left or right). The rear leg portion 24b protrudes from the connection base portion 24a between the connection position connected to the first link member 31 and the connection position connected to the front leg 22 . Thereby, interference between the rear leg part 24b and the 1st link member 31 can be prevented effectively, and the rear leg 24 and the 1st link member 31 can be rotated in a large angular range. Likewise, interference between the rear leg portion 24b and the front leg 22 can be effectively prevented, and the rear leg 24 and the front leg 22 can be rotated over a wide range of angles. In addition, the rear leg 24 and the first link member 31 can be brought closer together. In addition, the rear legs 24 and the front legs 22 can be brought closer together. As a result, as shown in FIGS. 6 and 7 , the first link member 31 , the rear leg 24 , and the front leg 22 can be brought closer together, and the size of the baby carriage 10 in the folded state can be reduced.

As shown in FIG. 4, the connection base 24a has a length direction Da that is not parallel to the direction Db in which the rear leg portion 24b protrudes. The front part of the 1st link member 31 is connected to the one side part (rear part) of the longitudinal direction Da of the connection base part 24a via the shaft member 52 extended in the width direction of the stroller 10. As shown in FIG. Moreover, the upper end part of the front leg 22 is connected to the other side part (front part) of the longitudinal direction of the connection base part 24a via the shaft member 53 extended in the width direction of the stroller 10. As shown in FIG.

The connection base 24a has a longitudinal direction Da, thereby effectively preventing the rear leg 24b from interfering with the first link member 31 and increasing the rotatable range of the rear leg 24 and the first link member 31 . In addition, interference between the rear leg portion 24b and the front leg 22 can be effectively prevented, and the rotatable range of the rear leg 24 and the front leg 22 can be increased. As a result, as shown in FIGS. 6 and 7 , the first link member 31 , the rear leg 24 , and the front leg 22 can be brought closer together, and the size of the baby carriage 10 in the folded state can be reduced. In addition, as shown in FIGS. 6 and 7 , a gap can be formed between the rear leg 24 and the first link member 31 in a state where the rear leg 24 and the first link member 31 are approached by relative rotation. Similarly, a gap can be formed between the rear leg 24 and the front leg 22 in a state where the rear leg 24 and the front leg 22 are approached by relative rotation. By forming a gap even after the relative rotation, it is possible to effectively prevent clothing and the like from being caught between the elements constituting the relative operation accompanying the folding operation or the unfolding operation.

As shown in FIG. 4 , at least a portion 31 a of the first link member 31 including the connection position to the rear leg 24 , the connection base 24 a of the rear leg 24 , and at least part 31 a of the front leg 22 including the connection position to the rear leg 24 Some 22a are arranged in a line. Accordingly, the operation force can be smoothly applied from the grip 15 to the front leg 22 via the first link member 31 and the rear leg 24 . In addition, the force from the running surface S is smoothly transmitted from the front leg 22 to the handle 15 via the rear leg 24 and the first link member 31 . Thereby, an appropriate operation force can be applied to the stroller 10 while grasping the state of the running surface S, and the maneuverability of the stroller 10 can be effectively improved. In addition, in the illustrated example, the portion 31a, the connection base portion 24a, and the portion 22a are arranged in a straight line, but the present invention is not limited thereto, and may be arranged in a continuous curved line.

Next, the second link member 32 will be described. As shown in FIG. 1 , the left second link member 32 is rotatably (swingably) connected to the left handle side portion 15 a and the left rear leg 24 of the handle 15 , respectively. Similarly, the right second link member 32 is connected to the right handle side portion 15a and the right rear leg 24 of the handle 15 so as to be rotatable (swingable). Thereby, in the deformation of the stroller 10 from the unfolded state to the folded state, the handle 15 can be lowered downward while approaching the rear legs 24 . And as shown in FIG. 6 , the size of the baby carriage 10 in the folded state can be reduced in the vertical direction.

As shown in FIG. 4 , each second link member 32 has a second link main body portion 32 a connected to the handle 15 and the rear leg 24 . In addition, each second link member 32 has an overhanging portion 32b extending between the connection position to the handle 15 and the connection position to the rear leg 24 in the second link main body portion 32a. The protruding portion 32b protrudes forward in the unfolded state of the stroller 10 . Each of the second link main body parts 32a is connected to the lower part of the handle side part 15a (more specifically, the lower end part of the handle side part 15a and the operation position) via the shaft member 54 extending in the width direction of the baby carriage 10 at a part thereof. between parts 18) connection. Moreover, each 2nd link main body part 32a is connected to the intermediate part of the rear leg 24 at the other part via the hub part 55 extended in the width direction of the stroller 10. As shown in FIG.

A lock member 19 protruding toward the handle side portion 15 a is provided at a part of each second link main body portion 32 a connected to the handle side portion 15 a. As shown in FIG. 4 , the lock member 19 is formed in a shape in which a circle centered on the shaft member 54 is cut out in multiple places when viewed in the width direction of the stroller 10 . In the lock member 19, two recesses 19a, 19b extending in the radial direction of a circle centered on the shaft member 54 are provided at different positions in the circumferential direction thereof. In the unfolded state or the folded state of the stroller 10 , each recessed portion 19 a, 19 b accommodates the convex portion 18 b of the operation member 18 that slides along the handle 15 from below. That is, as can be seen from FIGS. 4 and 7 , when the baby carriage 10 is deformed from the unfolded state to the folded state, the lock member 19 and the second link member 32 rotate together. Therefore, the posture of the lock member 19 relative to the handle 15 changes at this time. In the lock member 19 like this, the concave portion 19a is positioned when the stroller 10 is in the unfolded state so that it can accommodate the convex portion 18b of the operating member 18 on the handle 15 (see FIG. 4 ). In addition, the concave portion 19b is positioned so that it can accommodate the convex portion 18b of the operating member 18 on the handle 15 when the stroller 10 is in the folded state.

In the unfolded state of the stroller 10 , the protrusion 18 b of the operation member 18 is accommodated in the recess 19 a, and the lock member 19 engages with the handle 15 to restrict relative rotation between the second link member 32 and the handle 15 . Thus, the stroller 10 is held in the unfolded state. In addition, in the folded state of the stroller 10, the convex portion 18b of the operation member 18 is accommodated in the concave portion 19b, and the lock member 19 is engaged with the handle 15, thereby restricting the relative rotation of the second link member 32 and the handle 15. . Thus, the stroller 10 is kept in the folded state.

Next, the third link member 33 will be described. As shown in FIG. 1 , the third link member 33 on the left side is connected to the second link member 32 on the left side and the front leg side portion 23 a on the left side so as to be rotatable (swingable). Similarly, the third link member 33 on the right side is connected to the second link member 32 on the right side and the front leg side part 23 a on the right side so as to be rotatable (swingable). Accordingly, when the stroller 10 is deformed from the unfolded state to the folded state, the front leg 22 is pulled toward the handle 15 and the rear leg 24 via the third link member 33 . Furthermore, as shown in FIGS. 6 and 7 , the size of the baby carriage 10 in the folded state can be reduced in the front-rear direction.

Each third link member is connected to the extension part 32b of the second link member 32 via a shaft member 56 extending in the width direction of the stroller 10 in a part (rear portion) thereof. Moreover, each 3rd link member 33 is connected with the intermediate part of the front leg side part 23a via the shaft member 57 extended in the width direction of the stroller 10 in the other part (front part). The third link member 33 is connected to the position formed between the connection position connected to the handle 15 and the connection position connected to the rear leg 24 in the second link member 32, so that in the folded state of the stroller 10, it can effectively The front wheel 25a held by the front leg 22 and the rear wheel 26 held by the rear leg 24 are prevented from getting too close (refer to FIG. 6 ). Thereby, the stroller 10 in the folded state can be more stably erected by itself. Furthermore, the third link member 33 is connected to the second link member 32 in the above-mentioned protruding portion 32b, so that in the folded state of the stroller 10, the front wheel 25a held by the front leg 22 can be prevented more effectively. The rear wheel 26 held by the rear leg 24 is too close (refer to FIG. 6 ). Thereby, the stroller 10 in the folded state can be more stably erected by itself.

In addition, in the illustrated example, the third link member 33 is connected to the second link member 32, but it is not limited to this. The third link member 33 may be connected to the handle 15 so as to be rotatable (swingable).

Next, the plate member 60 will be described. As shown in FIG. 1 , the plate member 60 of the front leg 22 is attached to the front leg frame 23 . The plate member 60 prevents the infant's feet from entering between the pair of front leg side portions 23a when the infant sits in the stroller 10 and during the ride. As shown in FIG. 5, the board member 60 has the gentle slope part 60a supported by the front leg connection part 23b at least, and the steep slope part 60b connected to the gentle slope part 60a from the rear. The gentle slope portion 60a and the steep slope portion 60b are inclined upward toward the rear, and the slope angle of the gentle slope portion 60a relative to the running surface S is smaller than the slope angle of the steep slope portion 60b relative to the running surface S. The gentle slope portion 60a can be used as a step or a step when the stroller 10 is used. The gentle slope part 60a is arrange|positioned so that it may be located above the front wheel 25a. Thereby, the stability of the stroller 10 can be ensured when using the gentle slope part 60a as a step or a step. In particular, as shown in the figure, when the baby carriage 10 is configured as a tricycle, the baby carriage 10 can be effectively stabilized. Moreover, it is preferable to set the inclination angle of the gentle slope part 60a with respect to the running surface S to 10 degrees - 20 degrees. Thereby, the stability of the stroller 10 can be ensured also when using the gentle slope part 60a as a step or a step. The plate member 60 is formed of, for example, resin or the like.

Returning to FIG. 1 , the illustrated stroller main body 11 has a rear connection bar 27 connected between a pair of rear legs 24 as a component extending in the width direction. In addition, a detachable protective member 28 is provided between the connection bases 24a of the pair of rear legs 24 .

Next, the seat 40 will be described. As shown in FIG. 1 , the seat 40 is arranged between the pair of front leg side portions 23 a and between the pair of rear legs 24 , and is supported by the stroller main body 11 . The seat 40 has a seat body 40a and a cushioning seat 90 attached to the seat body 40a. The seat main body 40 a includes a seat support member 41 and a back support member 42 . As shown in FIG. 3 , in this embodiment, the seat support member 41 and the back support member 42 are rotatable (swingable) via the shaft member 56 that rotatably connects the second link member 32 and the third link member 33. ) ground connection. In the illustrated example, the seat support member 41 and the third link member 33 are integrally formed. The third link member 33 constitutes a side portion of the seat support member 41 .

The seat support member 41 is located below the buttocks of an infant sitting on the stroller 10 . In addition, the back support member 42 is positioned behind the back of the infant riding on the stroller 10 . The seat support member 41 and the back support member 42 of this embodiment are comprised from the resin plate material which has a rectangular outline as a whole. The resin plate forming the seat support member 41 and the back support member 42 is hollowed out as necessary in order to ensure lightness and air permeability. In addition, both ends of the back support member 42 are supported from below or from the rear by the cords 45 fixed to the one and the other handle side portions 15a, respectively. By adjusting the length of the cord 45, the angle (inclination angle) of the back support member 42 with respect to the seat support member 41 can be adjusted.

The seat main body 40 a further includes a side support member 43 located on the side of the infant riding on the stroller 10 , and a head-side support member 44 located on the head side of the infant riding on the stroller 10 and lying on its side. The side support member 43 rotatably (swingably) connects both end portions of the U shape to the middle portion of the handle side portion 15a on the corresponding side. The head-side supporting member 44 is a pair of substantially linear members. One end and the other end of each head side support member 44 are connected to the back support member 42 and the side support member 43 so as to be rotatable (swingable), respectively.

The stroller 10 (baby stroller main body 11 ) having the overall structure described above operates so that the components can be folded by rotating each other.

First, in the baby carriage 10 in the unfolded state, the convex portion 18b of the operation member 18 is accommodated in the one concave portion 19a of the lock member 19 . Accordingly, relative rotation between the second link member 32 and the handle 15 is restricted. Therefore, by operating the remote operation device 18 a, the engagement between the second link member 32 and the grip 15 via the lock member 19 is released. Specifically, the operation member 18 is moved upward by the remote operation device 18a. Thereby, the fixation of the second link member 32 to the handle 15 is released, and the fixation of the second link member 32 to another component is further released. In addition, at this time, the lower end portion of the handle 15 is engaged with the engaging member 17 provided at the middle portion of the rear leg 24 .

From this state, the grip 15 arranged at the rear position is once raised rearward and upward, and the engagement of the lower end portion of the grip 15 with respect to the rear leg 24 is released. The grip 15 is pressed down afterwards. At this time, in FIGS. 2 and 4 , the first link member 31 rotates clockwise with respect to the rear leg 24 . Thereby, the handle 15 and the rear leg 24 approach (refer FIG. 6 and FIG. 7). In addition, when the handle 15 is pushed down, the second link member 32 and the handle 15 cooperate. Thus, in FIGS. 2 and 4 , the second link member 32 rotates clockwise with respect to the rear leg 24 . Accompanying this movement of the second link member 32, the third link member 33 is pulled rearward. When the third link member 33 is pulled rearward, the front leg 22 is pulled toward the rear leg 24 while turning counterclockwise relative to the rear leg 24 in FIGS. 2 and 4 (see FIGS. 6 and 7 ). As above, as shown in FIGS. 6 and 7 , the size of the stroller 10 in the front-rear direction is reduced. In addition, at this time, as described above, the arrangement position of the handle 15 is lowered. As a result, not only the size of the baby carriage 10 in the front-back direction but also the size of the baby carriage 10 in the up-down direction can be reduced.

On the other hand, unfolding the baby carriage 10 (the baby carriage main body 11 ) from the folded state requires only the opposite operation to the above-mentioned folding operation.

As described above, according to the first embodiment, the baby carriage 10 can be deformed between the unfolded state and the folded state, and the baby carriage 10 includes: the handle 15; the first link member 31 rotatably connected to the handle 15; 24 is rotatably connected to the first link member 31; the front leg 22 is rotatably connected to the rear leg 24. And the rear leg 24 has: the connection base 24a, which is connected with the first link member 31 and the front leg 22; protrudes between the connection locations.

According to such a first embodiment, the rear leg 24 and the first link member 31 can be rotated over a wide angle range, so that the rear leg 24 and the first link member 31 can approach each other. Likewise, the rear leg 24 and the front leg 22 can be rotated over a wide range of angles so that the rear leg 24 and the front leg 22 can approach each other. As a result, as shown in FIG. 6 , the first link member 31 , the rear leg 24 , and the front leg 22 can be brought closer together, and the size of the stroller 10 in the folded state can be reduced. In addition, various shapes can be given to the first link member 31 . As a specific example, the first link member 31 may be configured as a rod-shaped member. Thereby, the design freedom of the stroller 10 can be improved, and the aesthetic appearance can be effectively improved.

In addition, according to the first embodiment, the connection base portion 24a has a longitudinal direction Da that is not parallel to the direction Db in which the rear leg portion 24b protrudes. The connection base 24a has a longitudinal direction Da, and can stably increase the rotatable range of the rear leg 24 and the first link member 31 . In addition, the rotatable range of the rear leg 24 and the front leg 22 can be increased stably. In addition, as shown in FIGS. 6 and 7 , a gap can be formed between the rear leg 24 and the first link member 31 in a state where the rear leg 24 and the first link member 31 are approached by relative rotation. Similarly, a gap can be formed between the rear leg 24 and the front leg 22 in a state where the rear leg 24 and the front leg 22 are approached by relative rotation. By forming a gap even after the relative rotation, it is possible to effectively prevent clothing or the like from being caught between the components performing the relative movement due to the folding operation or the unfolding operation.

In addition, according to the first embodiment, at least a portion 31a of the first link member 31 including the connection position to the rear leg 24, the connection base 24a of the rear leg 24, and the connection position of the front leg 22 to the rear leg 24 At least a part 22a of them is arranged linearly. At least a part 31a of the first link member 31 including the connection position to the rear leg 24, the connection base 24a of the rear leg 24, and at least a part 22a of the front leg 22 including the connection position to the rear leg 24 are arranged in a line. , so that the operation force can be smoothly applied from the grip 15 to the front leg 22 via the first link member 31 and the rear leg 24 . In addition, the force from the running surface S is smoothly transmitted from the front leg 22 to the handle 15 via the rear leg 24 and the first link member 31 . Thereby, an appropriate operation force can be applied to the stroller 10 while grasping the state of the running surface S, and the maneuverability of the stroller 10 can be effectively improved.

In addition, according to the first embodiment, the second link member 32 which is rotatably connected to the handle 15 and the rear leg 24 is further provided, and the second link member 32 is rotatably connected to the front leg 22, the handle 15 or the second link member respectively. The third link member 33 of the member 32. As shown in FIG. 6 , in such a stroller 10 , in the deformation from the unfolded state to the folded state, the handle 15 can descend downward while approaching the rear legs 24 . In addition, in the deformation from the unfolded state to the folded state, the front leg 22 is pulled toward the handle 15 and the rear leg 24 via the third link member 33 . Thereby, the size of the baby carriage 10 in the folded state can be reduced in the front-rear direction and the up-down direction.

In addition, according to the first embodiment, the front leg 22 has: the front leg frame 23 having the pair of front leg side portions 23a connected to the rear leg 24 and the front leg connecting portion 23b connecting the pair of front leg side portions 23a; 60, which is supported by at least a part of the connection position connected to the front leg connecting portion 23b including the front leg side portion 23a and the pair of front leg side portions 23a. Thereby, it is possible to effectively prevent feet from entering between the pair of front leg side portions 23a.

In addition, according to the first embodiment, the plate member 60 has the gentle slope portion 60a supported by at least the front leg connecting portion 23b and the steep slope portion 60b connected to the gentle slope portion 60a from the rear, and the gentle slope portion 60a and the steep slope portion 60b face toward the The rear direction is inclined upwards, and the inclination angle of the gentle slope portion 60 a relative to the running surface S is smaller than the inclination angle of the steep slope portion 60 b relative to the running surface S. According to such a board member 60, the gentle slope part 60a can be used as a step or a step when the stroller 10 is riding.

In addition, according to the first embodiment, the stroller 10 is further provided with the front wheel holder 25 supported by the front legs 22 and including the front wheel 25a, and the gentle slope portion 60a may be positioned above the front wheel 25a. Thereby, the stability of the stroller 10 can be ensured when using the gentle slope part 60a as a step or a step. In particular, when the baby carriage 10 is configured as a tricycle, it is effective in stabilizing the baby carriage 10 effectively.

<Second embodiment>

Next, a second embodiment of the present invention will be described with reference to FIGS. 8 to 13 . The second embodiment described with reference to FIGS. 8 to 13 differs from the first embodiment in the following points. That is, baby carriage 110 is configured as a four-wheeled carriage. In addition, the first link member 310 has a holding member 130 , and the seat 140 is detachably supported by the stroller main body 111 via the holding member 130 . However, other configurations can be the same as those of the first embodiment. In the following description related to the second embodiment and the drawings used in the following description, for parts that can have the same configuration as that of the above-mentioned first embodiment, the same reference numerals are used for the parts corresponding to the above-mentioned first embodiment, and are omitted. Repeat instructions.

8 and 9 are diagrams showing the overall configuration of the stroller 110 . FIG. 10 shows the connecting portion of the seat 140 and the stroller body 111 . As shown in FIG. 8 , the seat 140 has a main frame member 141 , a cloth material 142 attached to the main frame member 141 , and a connection member 143 connected to the main frame member 141 . As described above, the first link member 310 has the first link main body portion 31 configured similarly to the first link member 31 shown in FIG. 1 , and the holding member 130 that detachably holds the seat 140 .

First, the holding member 130 will be described with reference to FIGS. 10 and 11 . As shown in FIG. 11, the holding member 130 has: a connecting portion (accommodating portion) 131 having a bottom 131a and side walls 131b, 131c, 131d, and 131e; out. As shown in FIG. 10 , the holding member 130 is fixed to the first link main body portion 31 in the attachment portion 132 . The holding member 130 is fixed such that the inner space of the connecting portion 131 is opened upward in the unfolded state of the stroller 10 . Engagement holes 133 for engaging with protrusions 148 of connection members 143 of the seat 40 to be described later are provided in the side walls 131b and 131d facing the front or rear of the connection portion 131 .

Next, the main frame member will be described with reference to FIG. 8 . As shown in FIG. 8 , the main frame member 141 forms a rectangular frame as a whole. The main frame member 141 has two frame members 141a, 141b substantially U-shaped as a whole, and a pair of connecting members 141c connecting the two frame members 141a, 141b. In the seat 140, the foot side frame member 141a is arranged on the side where the infant's feet are placed, and the head side frame member 141b is arranged on the side where the infant's head is placed. The U-shaped end of the foot-side frame member 141a and the U-shaped end of the head-side frame member 141b are connected by connecting members 141c disposed on the corresponding sides. The protection member 128 is provided between a pair of connection member 141c. Moreover, the base part of the canopy 100 is connected to the connection member 141c. The connection member 143 is connected to the connection member 141c from the outside in the width direction of the stroller 10 .

Next, the connecting member 143 will be described with reference to FIG. 12A . FIG. 12A shows the connection part 143 . As shown in FIG. 12A , the connection member 143 has a connection portion (connection main body portion) 146 connected to the connection member 141 c of the main frame member 141 , and an attachment portion 147 protruding from the connection portion 146 . The attachment portion 147 protrudes to the side opposite to the side where the protection member 128 of the main frame member 141 is provided, and is accommodated in the connection portion 131 of the holding member 130 . The attachment portion 147 has a shape corresponding to the connection portion (accommodation portion) 131 of the holding member 130, and has side surfaces 147b, 147c, 147d, and 147e. The mounting portion 147 has a protruding portion 148 on one 147b of the side surfaces 147b, 147d facing the front-rear direction. The protruding portion 148 is provided at a position corresponding to the engaging hole 133 of the holding member 130 , and is engaged with the engaging hole 133 . Thus, the connection member 143 is stably held by the holding member 130 . The protruding portion 148 is accommodated in the attachment portion 147 by operating the operating device 149 provided on the connection portion 146 . Thereby, the engagement between the seat 140 and the engaging hole 133 can be released, and the seat 140 can be detached from the holding member 130 .

The connection member 143 , especially the protruding portion 148 and the operating device 149 will be further described in detail with reference to FIGS. 12B and 12C . 12B and 12C are diagrams showing the inside of the connection member 143 . As shown in FIG. 12B , the connection member 143 has a storage portion 143 a that accommodates the protruding portion 148 and the operating device 149 . The storage portion 143 a constitutes the connection portion 146 and the attachment portion 147 . In the portion constituting the connection portion 146 of the storage portion 143a, the first opening portion 143b is provided in a region facing upward from one side in the front-rear direction (the side of the side surface 147b ) in the unfolded state of the stroller 110 . Moreover, the 2nd opening part 143c is provided in the part which comprises the side surface 147b of the attachment part 147 of the storage part 143a.

A protrusion guide wall 147g extending in the front-rear direction when the baby carriage 110 is deployed and an action part guide wall 147h extending in the vertical direction when the baby carriage 110 is deployed are formed on the inner surface of the mounting part 147 .

The protruding portion 148 is a plate-shaped member. In the attachment part 147, the protrusion part 148 is arrange|positioned so that it may extend in the front-rear direction and move along the protrusion part guide wall 147g in the unfolded state of the stroller 110. As shown in FIG. The protruding portion 148 is biased toward the second opening 143c by a protruding portion urging mechanism 148s arranged in the mounting portion 147 . Therefore, when no force is applied to the protruding portion 148 , the one end 148 a of the protruding portion 148 on the second opening 143 c side protrudes outward from the mounting portion 147 through the second opening 143 c. At the other end 148b (the end on the side surface 147d side) of the protruding portion 148, a convex portion 148c protruding outward in the width direction of the stroller 110 and on which the operating device 149 operates is formed. The surface facing the second opening 143c of the convex portion 148c forms an operating surface 148d on which the operating device 149 acts. In the unfolded state of the stroller 110, the action surface 148d is inclined upward toward the second opening 143c.

The operating device 149 has an operating lever 149a and an action portion 149b that acts on the protruding portion 148 as the operating lever 149a is operated. The operation lever 149a is rotatably connected at an intermediate portion thereof to a shaft member 149x extending in the storage portion 143a in the width direction of the stroller 110 . One end 149c of the operating rod 149a is exposed to the outside of the connecting portion 146 through the first opening 143b. The other end 149d of the operation lever 149a is provided with a convex portion 149e extending outward in the width direction of the stroller 110 . An operation lever biasing mechanism 149s is arranged in the connecting portion 146 . The operating rod springing mechanism 149s maintains the operating rod 149a in the posture shown in FIG. 12B , specifically such that one end 149c of the operating rod 149a is located above the other end 149d in the unfolded state of the stroller 110 .

The action part 149b extends substantially in the up-down direction when the stroller 110 is unfolded. An opening 149g penetrating in the width direction of the stroller 110 is provided at an upper end 149f of the action portion 149b. The convex part 149e of the operation lever 149a is inserted in the opening part 149g. And the upper end 149f of the action part 149b is swingably connected with respect to the operation lever 149a. The lower half of the action part 149b extends along the action part guide wall 147h, and moves along the action part guide wall 147h. A lower end 149g of the action portion 149b is provided with an inclined surface 149h inclined correspondingly to the action surface 148d of the protruding portion 148 . The inclined surface 149h inclines upward toward the second opening 143c in the unfolded state of the stroller 110 .

When no force is applied to the operation lever 149a, in such an operation device 149 and the protrusion 148, the operation lever 149a is maintained at the position shown in FIG. in the position shown in Figure 12B. In this case, since the acting part 149b does not act on the protruding part 148, the protruding part 148 is also maintained at the position shown in FIG. 12B by the protruding part urging mechanism 148s. Therefore, one end 148a of the protruding portion 148 protrudes from the mounting portion 147 through the second opening 143c. On the other hand, when a force is applied to the operating lever 149a to rotate the operating lever 149a from the position shown in FIG. 12B to the position shown in FIG. 12C, the action portion 149b connected to the other end 149d of the operating lever 149a rises, and the inclined surface 149h rises. . Accordingly, the working surface 148d of the protruding portion 148 is pushed in a direction away from the second opening 143c, and the one end 148a of the protruding portion 148 is retracted into the mounting portion 147 . In other words, in the unfolded state of the stroller 110 , the rotational motion of the operating lever 149 a is converted into the linear motion of the action portion 149 b in the vertical direction, and further converted into the linear motion of the protruding portion 148 in the longitudinal direction. Thereby, by operating the operation lever 149a, the engagement between the protruding portion 148 of the connecting member 143 and the engaging hole 133 of the holding member 130 can be released.

In addition, the seat 140 can be connected to the holding member 130 even if the front-back direction is reversed. Therefore, in FIG. 8 , the seat 140 is connected to the holding member 130 in the state where the head side frame member 141b is arranged on the side of the handle 15, but in the state where the foot side frame member 141a is arranged on the side of the handle 15 It can also be connected to the holding member 130 .

However, as described above, when the handle 15 descends downward while approaching the rear legs 24 during the deformation of the stroller 110 from the unfolded state to the folded state, the first link main body portion 31 falls backward. At this time, the holding member 130 fixed to the first link main body portion 31 also falls backward, and the main frame member 141 of the seat 140 supported by the holding member 130 also falls backward. Thereby, the seat 140 (particularly, the main frame member 141) moves rearward. Thereby, also in the folded state, the baby carriage main body 111 can stably support the seat 140, and the baby carriage 110 in the folded state can stand upright by itself.

As described above, according to the second embodiment, the stroller 110 includes the stroller main body 111 having the handle 15, the front legs 22, the rear legs 24, the first link member 310, the second link member 32, and the stroller main body 111. The third link member 33 and the seat 140 are supported by the stroller main body 111 . Furthermore, the first link member 310 has a holding member 130 for detachably holding the seat 140 .

In the stroller 110 of the second embodiment, the handle 15 can be lowered downward while approaching the rear legs 24 during the transition from the unfolded state to the folded state. Accordingly, the size of the baby carriage 110 in the folded state can be reduced in the front-back direction and the up-down direction. In addition, the first link member 310 including the holding member 130 can be tilted rearward along with the movement of the handle 15, and the components of the seat 140 supported by the first link member 310 can be moved rearward. Accordingly, even in the folded state, the baby carriage body 111 can stably support the seat, and the baby carriage 110 in the folded state can stand upright by itself.

<third embodiment>

Next, a third embodiment of the present invention will be described with reference to FIGS. 14 to 19 . The third embodiment described with reference to FIGS. 14 to 19 is mainly different from the second embodiment in the following points. That is, the seat 240 includes the child seat 250 and the adapter 260 for detachably connecting the child seat 250 to the stroller main body 111 . However, other configurations can be the same as those of the second embodiment. In the following description related to the third embodiment and the drawings used in the following description, for parts that can be configured in the same way as those of the second embodiment above, the same reference numerals are used for parts corresponding to those in the second embodiment above. , omitting repeated descriptions.

FIG. 14 is a perspective view showing the overall configuration of the stroller 210 . FIG. 15 is a side view showing child seat 250 mounted on seat 200 of the vehicle. FIG. 16 is a side view showing adapter 260 held by holding member 130 and child seat 250 supported by adapter 260 . FIG. 17 is a perspective view showing the overall configuration of the adapter 260 . 18A and 18B are diagrams showing the inside of the connection member 263 . FIG. 19 is a side view showing the folded state of the stroller 210 shown in FIG. 14 .

First, the child seat 250 will be described with reference to FIGS. 14 and 15 . As shown in FIG. 15 , a child seat 250 is arranged and used on a seat 200 of a vehicle such as an automobile. The child seat 250 is a device for allowing children (young persons such as infants, toddlers, and children) to sit properly and safely in a vehicle including a seat (vehicle seat) 200 designed for adults and a seat belt 201 . The child seat 250 described here is attached to the seat 200 in a "rearward state". As shown in FIG. 15 , in the "rearward state", the child seated in the child seat 250 faces the rear of the vehicle.

In addition, here, the seat belt 201 has a shoulder belt 202 extending from the shoulder on one side (the right side in the illustrated example) to the waist on the other side (the left side in the illustrated example), and a shoulder belt 202 extending from one side (in the illustrated example, the left side). The waist belt 203 extending from the waist to the other side is a so-called three-point seat belt. The seat belt 201 is composed of one belt-shaped member, and the tongue 204 is inserted therethrough. The tongue piece 204 bends the one belt member to divide the seat belt 201 into a shoulder belt 202 and a lap belt 203 . In addition, a buckle 205 is provided on the other side of the seat 200 . The tongue piece 204 is engaged with the buckle 205 so that the body of the person sitting on the seat 200 is fixed to the seat 200 by the seat belt 201 .

In this specification, unless otherwise specified, the words "front", "rear", "right", "left", "horizontal", "upper" and " The term "down" means "front", "rear", "right", "left", "horizontal", "upper" and "lower" with respect to the child seated on the child seat 250, respectively. The "width direction" of the child seat 250 and its components refers to the direction connecting "left" and "right", that is, "horizontal direction". The "height direction" of child seat 250 and its components means "up-down direction". Furthermore, the "front-rear direction" of the child seat 250 and its components refers to the direction connecting "front" and "rear", and in the illustrated example, it is also related to the "front-rear direction" or "rear direction" of the vehicle and baby carriage 210. Walking direction" is the same.

As shown in FIG. 14 , the child seat 250 has a child seat main body 251 including a seat portion 252 on which a child sits or accommodates a child. Although not shown, a cushioned cover is attached to the seat portion 252 , and a child seat belt is attached to the child seat main body 251 .

The seat part 252 is a place where a child sits or accommodates a child. The seat portion 252 has a seat portion 254 , a back portion 255 , and side portions 256 located on both sides of the seat portion 254 and the back portion 255 . Seat 254 faces the child's buttocks from below. The back 255 faces the child's back from the rear. As shown in FIG. 14 , a child belt hole 257 through which a child belt passes is formed in the back portion 255 . Each side 256 has a cutout 258 . As shown in FIG. 15 , the cutout 258 guides the seat belt 201 to a prescribed path. As shown in FIG. 15 , when child seat 250 is attached to vehicle seat 200 , shoulder belt 202 and lap belt 203 of vehicle seat belt 201 protruding from one side pass through cutout 258 . And in this state, the tongue piece 204 is fixed to the buckle 205 .

An end portion of a substantially U-shaped handle 253 is connected to each side portion 256 of the seat portion 252 so as to be swingable. In addition, as shown in FIG. 15 , on each side portion 256 of the seat portion 252 , an engaging convex portion 259 protruding outward in the width direction of the seat portion 252 to engage with the adapter 260 is provided at the center in the front-rear direction. By operating an unillustrated operating device, the engaging convex portion 259 is retracted inside each side portion 256 . Accordingly, the engagement between the child seat 250 and the adapter 260 (more specifically, the engagement between the above-mentioned engaging convex portion 259 and the engaging concave portion 264 of the adapter 260 described later) can be released, and the child seat 250 can be detached from the adapter 260. Child seat 250.

Next, the adapter 260 will be described with reference to FIGS. 16 to 18B . The adapter 260 detachably connects the child seat 250 and the stroller body 111 . In this specification, the words "front", "rear", "horizontal", "upper", "lower", "front-rear direction" and "up and down" used with respect to the adapter 260 and its components unless otherwise specified. The term "direction" means "front", "rear", "horizontal", "upper", "lower", "front-rear direction" based on the operator who manipulates the stroller body 111 in the unfolded state to which the adapter 260 is attached. and "up and down direction". More specifically, the "front-back direction" of the adapter 260 refers to the left-right direction of the paper in FIG. 16 , which corresponds to the direction connecting the lower left and upper right of the paper in FIG. 17 . In the illustrated example, the "front-back direction" also corresponds to the "front-back direction" or "traveling direction" of the stroller 210 . And, unless otherwise specified, "front" refers to the side facing the operator who manipulates the stroller main body 111 to which the adapter 260 is installed, and the left side of the page in FIG. 16 and the lower left side of the page in FIG. the front side. On the other hand, the "up-and-down direction" of the adapter 260 refers to a direction perpendicular to the front-rear direction and perpendicular to the ground contact surface (running surface) S. As shown in FIG. Therefore, when the ground plane is a horizontal plane, the "up and down direction" means the vertical direction. In addition, the "width direction" means a horizontal direction, and is a direction orthogonal to any of the "front-rear direction" and the "up-and-down direction".

As shown in FIG. 17 , the adapter 260 has a pair of side support portions 261 , a connection portion 262 connecting the pair of side support portions 261 , and a pair of connection members 263 connected to the side support portions 261 from the widthwise outer side. When the adapter 260 is attached to the child seat 250 , the side portion 256 of the side support portion 261 facing the seat portion 252 is disposed outside the child seat 250 in the width direction. In addition, connecting portion 262 is arranged below child seat 250 . An engaging recessed portion 264 is provided on a side facing the side portion 256 of each side support portion 261 . When the adapter 260 is attached to the child seat 250 , the engaging concave portion 264 engages with the engaging convex portion 259 of the child seat 250 .

The connection member 263 has a connection portion (connection main body portion) 266 connected to the side support portion 261 , and an attachment portion 267 protruding downward from the connection portion 266 . When the adapter 260 is connected to the baby carriage body 111 in the unfolded state, the attachment portion 267 is accommodated in the connection portion 131 of the holding member 130 from above. The attachment portion 267 has a shape corresponding to the connection portion (accommodation portion) 131 of the holding member 130, and has side surfaces 267b, 267c, 267d, and 267e. The mounting portion 267 has a protruding portion 268 on a side surface 267b facing forward. The protruding portion 268 is provided at a position corresponding to the engaging hole 133 of the holding member 130 , and is engaged with the engaging hole 133 . Thus, the connecting member 263 is stably held by the holding member 130 . The protruding portion 268 is accommodated in the attachment portion 267 by operating the operating device 269 provided on the connection portion 266 . Accordingly, the engagement with the engaging hole 133 of the holding member 130 can be released, and the adapter 260 , and subsequently the seat 240 composed of the adapter 260 and the child seat 250 can be detached from the holding member 130 .

The connecting member 263 , especially the protruding portion 268 and the operating device 269 will be further described in detail with reference to FIGS. 18A and 18B . As shown in FIG. 18A , the connecting member 263 has a housing portion 263 a for housing the protruding portion 268 and the operating device 269 . The storage portion 263a constitutes the connection portion 266 and the attachment portion 267 . A first opening 263b is provided in a portion of the storage portion 263a that constitutes the connection portion 266 in an area that faces upward in the unfolded state of the stroller 210 . Moreover, the 2nd opening part 263c is provided in the part which comprises the side surface 267b of the attachment part 267 of the storage part 263a.

A protrusion guide wall 267g extending in the front-rear direction when the stroller 210 is unfolded and an action portion guide wall 267h extending vertically in the unfolded state of the stroller 210 are formed on the inner surface of the mounting portion 267 .

The protruding portion 268 is a plate-shaped member. The protruding part 268 is arranged so as to extend in the front-rear direction in the unfolded state of the stroller 210 in the mounting part 267 and to be movable along the protruding part guide wall 267g. The protruding portion 268 is biased toward the second opening 263c by a protruding portion urging mechanism 268s arranged in the mounting portion 267 . Therefore, when no force is applied to the protruding part 268, the one end 268a of the protruding part 268 on the second opening part 263c side protrudes outside the mounting part 267 through the second opening part 263c. At the other end 268b (the end on the side surface 267d side) of the protruding portion 268, a convex portion 268c protruding outward in the width direction and on which the operating device 269 operates is formed. The surface facing the second opening 263c of the convex portion 268c constitutes an operating surface 268d on which the operating device 269 acts. The action surface 268d is inclined upward to the side opposite to the second opening 263c.

The operation device 269 has an action part 269a extending substantially in the vertical direction when the stroller 210 is unfolded, and an action part biasing mechanism 269s that biases the action part 269a upward. When the action part 269a is biased by the action part biasing mechanism 269s, the upper end 269b of the action part 269a protrudes to the outside of the connection part 266 through the first opening 263b in a state where no force is applied to the action part 269a. This upper end 269b constitutes an operation button 269b for operating the operation device 269 . The lower half of the action part 269a extends along the action part guide wall 267h, and moves along the action part guide wall 267h. A lower end 269c of the action part 269a is provided with an inclined surface 269h inclined corresponding to the action surface 268d of the protruding part 268 . The inclined surface 269h is inclined upward toward the side opposite to the second opening 263c.

In such an operation device 269 and the protruding portion 268, when no force is applied to the operation button 269b, the action portion 269a is maintained at the position shown in FIG. 18A by the action portion biasing mechanism 269s. In this case, since the acting portion 269a does not act on the protruding portion 268, the protruding portion 268 is also maintained at the position shown in FIG. 18A by the protruding portion urging mechanism 268s. Therefore, one end 268a of the protruding portion 268 protrudes from the mounting portion 267 through the second opening 263c. On the other hand, when force is applied to the operation button 269b and the acting portion 269a is pushed down from the position shown in FIG. 18A to the position shown in FIG. 18B , the inclined surface 269h descends. As a result, the working surface 268d of the protruding portion 268 is pushed in a direction away from the second opening portion 263c, and the one end 268a of the protruding portion 268 is retracted into the mounting portion 267 . In other words, the vertical linear motion of the action part 269 a is converted into the longitudinal linear motion of the protruding part 268 . Accordingly, by operating the operation button 269b of the action portion 269a, the engagement between the protruding portion 268 of the connecting member 263 and the engaging hole 133 of the holding member 130 can be released.

However, when the baby carriage 210 is deformed from the unfolded state to the folded state as described above, when the handle 15 approaches the rear legs 24 and descends downward, the first link main body portion 31 falls backward. At this time, the holding member 130 fixed to the first link main body portion 31 also falls backward together, and the adapter 260 of the seat 240 supported by the holding member 130 falls backward together with the child seat 250 . As a result, the seat 240 moves backward as shown in FIG. 19 . Thereby, also in the folded state, the baby carriage main body 111 can stably support the seat 240, and the baby carriage 210 in the folded state can stand upright by itself.

In addition, several modification examples with respect to the said embodiment were demonstrated above, Of course, some modification examples can also be combined suitably and applied.

Claims (9)

1. A stroller capable of deforming between an unfolded state and a folded state, characterized in that it has: grip; a first link member rotatably connected to the handle; the rear leg is rotatably connected to the first link member; a front leg rotatably connected to said rear leg; a second link member rotatably connected to the handle and the rear leg; a third link member rotatably connected to the front leg and the second link member, The rear leg has: a connection base portion rotatably connected to the first link member and the front leg; a rear leg portion connected to a connection position of the first link member from the connection base portion and protruding between the points of connection towards the front legs, The second link member has: a second link main body part, which is rotatably connected to the handle and the rear leg; protruding forward between the connection position of the handle and the connection position to the rear leg, The third link member is connected to the extension portion. 2. The stroller of claim 1, wherein: The connection base has a length direction that is not parallel to the direction in which the rear leg protrudes. 3. The stroller as claimed in claim 1 or 2, characterized in that, At least a portion of the first link member including a connection point to the rear leg, the connection base of the rear leg, and at least a portion of the front leg including a connection point to the rear leg Arranged in a line. 4. The stroller according to claim 1, characterized in that it comprises: A stroller body having the handle, the front legs, the rear legs, the first link member, the second link member, and the third link member; a seat, supported by the stroller body, The first link member has a holding member for detachably holding the seat. 5. The stroller of claim 1, wherein: The front leg has: a front leg frame having a pair of front leg side portions connected to the rear leg and a front leg connecting portion connecting the pair of front leg side portions; a plate member comprising the At least a part of a connection position of the front leg side part and the pair of front leg side parts to the front leg connection part is supported. 6. The stroller of claim 5, wherein: The board member has: a gently sloped portion supported by at least the front leg connecting portion; a steep slope portion connected to the gently sloped portion from behind, The gentle slope portion and the steep slope portion are inclined upward toward the rear, The inclination angle of the gentle slope portion relative to the running surface is smaller than the inclination angle of the steep slope portion relative to the running surface. 7. The stroller of claim 6, wherein: A front wheel holder is further provided, the front wheel holder is supported by the front leg and includes a front wheel, The gentle slope portion can be located above the front wheel. 8. The stroller according to claim 1, characterized in that it comprises: A stroller body having the handle, the front legs, the rear legs, the first link member, the second link member, and the third link member; a seat, supported by the stroller body, the seat includes a child seat and an adapter connecting the child seat to the stroller body, The first link member has a holding member that detachably holds the adapter. 9. The stroller of claim 8, wherein: comprising a pair of first link members rotatably connected to the handle, The holding member holds the adapter between the pair of first link members.

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