TWI752337B - Pushchair - Google Patents

Abstract

The present invention discloses a pushchair having a pushchair body that can be folded and a seat that is held by the pushchair body by a holding member provided to the pushchair body. The pushchair body includes a first link member, a front leg and a rear leg that are rotatably coupled to the first link member, a handle that is rotatably coupled to the first link member, and is disposed between the front leg and the handle and is capable of being disposed between the front leg and the handle. The second link member that rotates relative to the front leg and the handle. The retaining member is fixed relative to the handle.

Description

baby carriage

The present invention relates to a baby carriage that can be folded, and more particularly, to a baby carriage that can be reduced in size when folded.

In the past, strollers for infants and young children have been widely used. The stroller disclosed in Japanese Patent Document 1 (JP2018-43710A) includes a stroller body and a seat that can be attached to and detached from the stroller body. The stroller can be folded with the seat attached to the stroller body. However, the seat is located above the stroller body, and the orientation of the seat changes greatly with the folding action of the stroller body. As a result, in the folded state of the stroller, the seat protrudes upward, and the folded size of the stroller cannot be sufficiently reduced.

The present invention has been made in consideration of the above problems, and an object of the present invention is to provide a stroller with a reduced folded size.

The stroller of the present invention has:

a stroller body, which can be folded; and

a seat which is held in the stroller body by a holding member provided on the stroller body,

The above stroller body has:

The first link member;

a front leg, which is connected with the first link member and can rotate relative to the first link member;

a rear leg, which is connected with the first link member and can rotate relative to the first link member;

a handle connected to the first link member and rotatable relative to the first link member; and

A second link member is provided between the front leg and the handle, and is rotatable relative to the front leg and the handle, and the holding member is fixed to the handle.

In the stroller of the present invention, the holding member may hold the seat so that the seat is separated from the stroller main body.

In the stroller of the present invention, the stroller body may hold the seat in a detachable manner, and may hold the seat so that the front-rear orientation can be changed.

In the stroller of the present invention, the holding member may be connected to the handle at two or more locations.

In the stroller of the present invention, the handle may include: a handle body having a pair of handle extension protrusions and a handle connection part connecting the pair of handle extension protrusions; and a reinforcing connection member for connecting the pair of handle extensions The extension protrusion is coupled at a position separated from the handle coupling portion, and the holding member may be coupled to the reinforcing coupling member.

In the stroller of the present invention, the holding member may be connected to the handle extending portion on the rotational axis of the second link member and the handle extending portion.

In the stroller of the present invention, the holding member may be connected to the handle extension portion through a spindle member that rotatably connects the second link member and the handle extension portion.

In the stroller of the present invention, the stroller main body may further include a pair of third link members, and the pair of third link members is provided between each rear leg and the handle so as to be able to face the corresponding rear leg. and the handle is rotated, and the third link member is rotatably connected to the handle extension portion and the second link member via the main shaft member.

In the stroller of the present invention, a pair of holding members may be provided to be separated in the width direction between both ends of the reinforcing connection member.

In the stroller of the present invention, the holding member may be located in a region surrounded by the first link member, the handle, and the rear leg in a side view.

In the stroller of the present invention, the seat surface formed by the seat may be positioned above the connection position between the first link member and the front leg in a side view.

In the stroller of the present invention, the seat may include a seat and a back portion that can be swung with respect to the seat portion, and a pivot axis of the back portion with respect to the seat portion in a side view may be located more than the first link. The connection position of the component to the above-mentioned rear leg is close to the upper position.

In the stroller of the present invention, the seat may include a seat and a back that can be swung with respect to the seat, and a pivot axis of the back with respect to the seat may be positioned between the handle and the second in a side view. The connecting position of the link part is close to the upper position.

In the stroller according to the present invention, the seat may include a seat, a back that can be moved relative to the seat, and a position located above the back and can be moved relative to the seat with the swinging of the back. The swinging side frame material is positioned above the connection position between the first link member and the handle with respect to the swinging axis of the seat portion in the side view.

In the stroller according to the present invention, the seat may include a seat, a back that can be moved relative to the seat, and a position located above the back and can be moved relative to the seat with the swinging of the back. The swinging side frame material is positioned above the first link member with respect to the swinging axis of the seat portion in a side view.

In the stroller of the present invention, the above-mentioned stroller body may have:

a pair of first link members, which are respectively connected with each handle extension protrusion and can rotate relative to the corresponding handle extension protrusion;

a pair of front legs, respectively connected with each first link member and rotatable relative to the corresponding first link member;

a pair of rear legs respectively connected to each of the first link members and rotatable relative to the corresponding first link member; and

A pair of second link members are provided between each front leg and the handle so as to be rotatable relative to the corresponding front leg and the handle, and the stroller body holds the seat on the pair of first links in the width direction. 1 between connecting rod parts.

According to the present invention, the folded size of the stroller can be reduced in size.

1-10 is a figure for demonstrating one Embodiment of the baby carriage of this invention. In addition, the whole structure of a baby carriage is shown in FIGS. 1-3. As shown in FIGS. 1 to 3 , the stroller 10 of the present embodiment includes a stroller body 20 and a seat 60 held by the stroller body 20 . The stroller 10 can be folded as shown in FIG. 3 because the stroller body 20 has a plurality of components that can move relative to each other. Moreover, as shown in FIG. 4, the holding member 50 is provided in the stroller main body 20. As shown in FIG. The stroller body 20 can hold the seat 60 shown in FIG. 8 in a detachable manner by the holding member 50 . In particular, referring to FIG. 9 , the stroller body 20 can hold the seat 60 so as to be able to change the front and rear orientation of the seat 60 , that is, to be able to change between the back state and the opposite state, as will be described later.

It should be noted that in this specification, unless otherwise specified, “front”, “rear”, “up”, “down”, “forward and rearward directions” and “rear” with respect to the stroller 10 and the stroller body 20 The term "up-down direction" refers to "front", "rear", "up", "down", "upper", "down", "upper", "rear", "upper", "upper", "rear" Front and rear direction" and "up and down direction". Therefore, the "front-rear direction" refers to the direction connecting the lower left and upper right of the paper in FIG. 1 , and corresponds to the left and right directions 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 paper in FIG. 1 and the left side of the paper in FIG. 2 are the front side of the stroller 10 . On the other hand, the "up-down direction" refers to a direction orthogonal to the front-rear direction and orthogonal to the landing surface. Therefore, when the ground is a horizontal plane, the "up-down direction" refers to the vertical direction. In addition, the "width direction" refers to the lateral direction, and is a direction orthogonal to both the "front-back direction" and the "up-down direction".

Hereinafter, one embodiment of the present invention will be described with reference to the accompanying drawings. It should be noted that some constituent elements included in the stroller 10 are shown in some drawings, but are omitted in other drawings.

As described above, the stroller 10 includes the stroller body 20 and the seat 60 held by the holding member 50 provided in the stroller body 20 . Moreover, the stroller 10 has the seat pad 80 fixed to the seat 60 so that attachment or detachment is possible, as shown by the double-dot chain line in FIG.1 and FIG.2. The infant sits on the seat cushion 80 . In addition, the stroller 10 may further include components not shown, such as a storage basket and a canopy.

First, the stroller main body 20 will be described with reference to the illustrated example. As shown in FIGS. 1 to 4 , the stroller body 20 as a whole has a substantially symmetrical configuration about the center plane in the width direction along the front-rear direction. The stroller body 20 has wheels 33 , 38 and a handle 40 , and is a stroller that an operator can push forward by holding the handle 40 . As shown in FIG. 4 , the stroller main body 20 has the first to third link members 21 to 23 in addition to the handle 40, the front leg 30 including the wheel 33 at the lower end, and the rear leg 35 including the wheel 38 at the lower end. main constituent elements. Since these constituent elements can perform the folding operation of the stroller body 20, the relative operation can be performed.

As shown in FIGS. 2 and 4 , the first link member 21 is located above the front leg 30 and the rear leg 35 and extends in the front-rear direction. The pair of first link members 21 are provided so as to be spaced apart in the width direction. The first link member 21 is formed as, for example, a resin molded product.

As shown in FIGS. 2 and 4 , the front legs 30 are connected to the first link member 21 . Corresponding to the pair of first link members 21, the pair of front legs 30 are provided so as to be spaced apart in the width direction. That is, each front leg 30 is connected to the first link member 21 on the corresponding side in the width direction. The front leg 30 is connected to the front portion of the first link member 21 , particularly the front end portion of the first link member 21 . The front legs 30 have a longitudinal direction. The front leg 30 is inclined with respect to the up-down direction and the front-rear direction so that the longitudinal direction of the front leg 30 faces forward and downward. In the example shown in the figure, the upper end portion of the front leg 30 is connected to the first link member 21 . The front leg 30 is connected to the first link member 21 in a swingable manner. In other words, the first link member 21 and the front leg 30 are rotatable around the axis along the width direction.

In the example shown in the figure, the front leg 30 includes a front leg main member 31 connected to the first link member 21 at one end thereof, a front wheel holding member 32 connected to the front leg main member 31, and an axle not shown in the figure. The front wheel 33 held by the front wheel holding member 32 . The front leg main material 31 has a longitudinal direction. The front leg main material 31 can be formed using, for example, a metal and/or resin pipe material. The front wheel holding member 32 has a longitudinal direction, and is formed as an extension of the front leg main material 31 . The front wheel holding member 32 is connected to the lower end portion of the front leg main material 31 . The front wheel holding member 32 is connected to the front leg main material 31 at the upper end portion thereof.

As shown in FIG. 4 , the front wheel holding member 32 holds the axle (not shown) to which the front wheel 33 is attached at the lower end portion thereof. The front wheel holding member 32 has a mounting portion 32a attached to the front leg main material 31, an axle holding portion 32c for holding the front wheel 33 via the axle, and an intermediate support portion 32b therebetween. In the illustrated example, the intermediate support portion 32b is displaced inward in the width direction from the attachment portion 32a. As a result, the intermediate support portion 32b supports the axle holding portion 32c at a position shifted inward in the width direction than the front leg main material 31 . The axle holding portion 32c is rotatable with respect to the intermediate support portion 32b. At this time, the front wheel holding body including the front wheel 33 and the front wheel holding member 32 functions as a caster. In addition, in the example shown in the figure, the front wheel holding body has a pair of front wheels 33 located on both sides of the axle holding portion 32c in the form of two wheels. Since the intermediate support portion 32b is displaced inward in the width direction with respect to the attachment portion 32a, the front wheel 33 on the outer side in the width direction can be prevented from protruding greatly in the width direction.

The front wheel holding member 32 is formed using, for example, a resin molding. In addition, the front wheel holding member 32 may contain a metal pipe for reinforcement. For example, the intermediate support portion 32b may contain a metal pipe.

It should be noted that, in this specification, the inner side in the width direction refers to the side close to the center of the stroller body 20 in the width direction. On the other hand, the outer side in the width direction refers to the side away from the center of the stroller body 20 in the width direction.

As shown in FIGS. 4 and 5 , the stroller body 20 includes a member for connecting a pair of front legs 30 . As shown in FIG. 5 , in the stroller body 20 of the drawings, the stroller body 20 includes a front leg connecting member 26 for connecting a pair of front legs 30 and a front member 27 provided on the front leg connecting member 26 . The front leg connecting member 26 is formed using, for example, a metal pipe. The front member 27 is formed using, for example, a resin molded product.

Both ends of the front leg connecting member 26 are connected to the front wheel holding member 32 . Therefore, in order to secure the connection of the front leg connecting member 26 to the front leg 30, it is not necessary to provide a separate member on the front leg main material 31. In addition, in the side view shown in FIG. 2 , the front leg connecting member 26 is blocked by the front wheel holding member 32 . Therefore, it is also suitable from a design point of view. In addition, the front member 27 is rotatable with respect to the front leg connecting member 26 around a rotation axis extending in the width direction. The front member 27 constitutes a part of the second link member 22 as described later.

As shown in FIGS. 2 and 4 , rear legs 35 are further connected to the first link member 21 . Corresponding to the pair of first link members 21 , the pair of rear legs 35 are provided so as to be separated from each other in the width direction. That is, each rear leg 35 is connected to the first link member 21 on the corresponding side in the width direction. The rear leg 35 is connected to the front portion of the first link member 21 , particularly, to the front end portion of the first link member 21 . The rear legs 35 have a longitudinal direction. The rear leg 35 is inclined with respect to the vertical direction and the front-rear direction so that the longitudinal direction of the rear leg 35 faces rearward and downward. In the example of the drawing, the rear leg 35 is connected to the first link member 21 at the upper end portion thereof. The rear leg 35 is connected to the first link member 21 in a swingable manner. In other words, the first link member 21 and the rear leg 35 are rotatable around the axis along the width direction.

In particular, as shown in FIG. 2 , the rear leg 35 is connected to the first link member 21 at the same position as the corresponding front leg 30 . That is, the connection position JP1 between the first link member 21 and the front leg 30 and the connection position JP2 between the first link member 21 and the rear leg 35 match. Therefore, the rotation axis of the front leg 30 with respect to the first link member 21 and the rotation axis of the rear leg 35 with respect to the first link member 21 also coincide.

In the example shown in the figure, the rear leg 35 has a rear leg main member 36 connected to the first link member 21 at one end thereof, a rear wheel holding member 37 connected to the rear leg main member 36, and an axle not shown via an axle. The rear wheel 38 held by the rear wheel holding member 37 . The rear leg main material 36 is formed using, for example, a metal pipe. In the illustrated example, the rear leg main material 36 is bent or bent at the middle portion thereof. And the lower part of the rear leg main material 36 is located in the width direction inner side rather than the upper part of the rear leg main material 36. As shown in FIG. Thereby, the rear wheel holding member 37 and the rear wheel 38 can be prevented from protruding outward in the width direction. The rear wheel holding member 37 is formed using, for example, a resin molding. A braking mechanism for the rear wheel 38 may be provided on the rear wheel holding member 37 .

As shown in FIG. 4 , the stroller body 20 includes a rear leg connecting member 28 that connects the pair of rear legs 35 . Both ends of the rear leg connecting member 28 are connected to the rear wheel holding member 37 . Therefore, in order to secure the connection of the rear leg connecting member 28 to the rear leg 35 , it is not necessary to provide a separate member on the rear leg main material 36 . In addition, in the side view, the rear leg connecting member 28 is hidden by the rear wheel holding member 37 . Therefore, it is also suitable from a design point of view. The rear leg connecting member 28 is formed using, for example, a resin molding.

As shown in FIGS. 2 and 4 , a handle 40 is further connected to the first link member 21 . Hereinafter, the handle 40 will be described. As shown in FIG. 4 , the handle 40 includes a handle body 41 formed in a U-shape, and a reinforcement connection member 45 for reinforcing the handle body 41 . The handle main body 41 has a handle extension portion 42 that is spaced apart in the width direction, and a handle connection portion 43 that connects the handle extension portion 42 . The pair of handle extension protrusions 42 are provided corresponding to the pair of first link members 21 . The pair of handle extension tabs 42 may have a symmetrical configuration. The handle extending protrusion 42 is a rod-shaped member having a longitudinal direction. The handle extension protrusion 42 is inclined with respect to the up-down direction and the front-rear direction so as to face rearward and upward. Each handle extending protrusion 42 is connected to the corresponding first link member 21 . Each of the handle extension protrusions 42 is connected to the rear portion of the first link member 21 , particularly the rear end portion. The handle extending protrusion 42 is connected to the first link member 21 at the middle portion thereof. The handle extending protrusion 42 is rotatable with respect to the first link member 21 around an axis extending in the width direction.

The handle connection portion 43 connects the pair of handle extension protrusions 42 at the end portion which becomes the upper side of the pair of handle extension protrusions 42 . The handle connection portion 43 is a portion held by the operator of the stroller 10 . The stroller body 20 has a fixing mechanism (not shown) for maintaining the expanded state. In addition, the handle connection portion 43 is provided with an operation device 44 for remotely operating the fixing mechanism. The operator of the stroller 10 can start the folding operation of the stroller body 20 in the unfolded state by operating the operation device 44 .

The handle main body 41 is formed using, for example, a metal pipe. The handle extending protrusion 42 and the handle connecting portion 43 may be integrally formed.

The reinforcing connection member 45 is formed using, for example, a resin molded product and/or a metal pipe. The reinforcement connection member 45 connects the pair of handle extension protrusions 42 along the width direction. The reinforcement connection member 45 is connected to the handle extension protrusion 42 at a position separated from the handle connection part 43 . In particular, as shown in FIG. 2 , the reinforcement connecting member 45 connects a pair of handles in the vicinity of the end of the handle extension 42 on the side where the handle connection 43 is not connected, that is, in the vicinity of the lower end of the handle extension 42 . The extension protrusions 42 are connected. In other words, the reinforcing connection member 45 is connected to the lower end portion of each handle extension 42 on the side separated from the handle connection portion 43 and the connection position JP3 of the handle extension 42 to which the first link member 21 is connected. The handle extension tabs 42 are attached.

In addition, in the side view of FIG. 2 , the reinforcement connection member 45 is positioned downward in the vertical direction with respect to the connection position JP1 between the first link member 21 and the front leg 30 , and the handle connection portion 43 of the handle body 41 is connected to this connection position. Compared with JP1, it is located above in the up-down direction. Similarly, in the side view of FIG. 2 , the reinforcing connection member 45 is positioned downward in the vertical direction with respect to the connection position JP2 of the first link member 21 and the rear leg 35 , and the handle connection portion 43 of the handle main body 41 is connected to this connection position JP2 Compared with the position JP2, it is located above in the up-down direction. In addition, in the side view of FIG. 2 , the reinforcement connection member 45 is positioned rearward in the front-rear direction with respect to the connection position JP2 of the first link member 21 and the rear leg 35 and extends relative to the first link member 21 and the handle The connection position JP3 of the protruding portion 42 is located forward in the front-rear direction.

Next, the second link member 22 will be described. As shown in FIG. 4 , a pair of second link members 22 are provided so as to be separated from each other in the width direction. The second link member 22 is provided between the front leg 30 and the handle 40 , particularly between the middle portion of the front leg 30 and the handle 40 . The second link member 22 is rotatable with respect to the front leg 30 and the handle 40 about an axis extending in the width direction, respectively. The second link member 22 forms at least a part of a link element that connects the corresponding front leg 30 and the handle 40 .

In the example of the drawing, the second link member 22 is rotatably connected to the middle portion of the corresponding front leg 30 . In addition, as shown in FIG. 6 , the second link member 22 is rotatably connected to the lower portion, particularly the lower end portion, of the corresponding handle extending protrusion 42 of the handle 40 . As shown in FIG. 7 , the second link member 22 is connected to the handle extending protrusion 42 via the main shaft member 25 extending in the width direction. In addition, as can be seen from FIG. 7 , the second link member 22 is connected to the front leg 30 via the front leg connecting member 26 . Here, FIG. 7 is a longitudinal sectional view of the stroller 10 , and shows a configuration located on the right side of the stroller 10 from the inside in the width direction.

It should be noted that, in the example shown in the drawings, each second link member 22 includes a side link member 29 connected to the handle extension 42 using the main shaft member 25 , and a front end portion fixed to the side link member 29 . Part 27. The side link material 29 is formed using, for example, a metal pipe. As shown in FIG. 5 , a pair of side link materials 29 are provided apart from each other in the width direction. As described above, the front leg connecting member 26 is connected to the pair of front legs 30 and connects the pair of front legs 30 . The front member 27 is provided on the front leg connecting member 26 and is rotatable with respect to the front leg connecting member 26 . The front member 27 extends in the width direction, and connects the front end portions of the pair of side link members 29 . In this example, each second link member 22 is constituted by an end portion in the width direction of the front member 27 and a side link material 29 connected to the end portion. In addition, the pair of second link members 22 are connected by a front member 27 . Therefore, the pair of second link members 22 rotate in synchronization with each other with respect to the front legs 30 and the handle 40 . In addition, in this example, the rotation axes of the front leg 30 and the second link member 22 are located in the region overlapping with the front member 27 , that is, the region occupied by the front member 27 .

Next, the third link member 23 will be described. As shown in FIG. 4 , a pair of third link members 23 are provided so as to be separated from each other in the width direction. The third link member 23 is provided between the handle 40 and the rear leg 35 , particularly between the handle 40 and the middle portion of the rear leg 35 . The third link member 23 is rotatable with respect to the handle 40 and the rear leg 35 about an axis extending in the width direction, respectively. The third link member 23 forms at least a part of a link element that connects the handle 40 and the corresponding rear leg 35 .

In the example of the drawing, the third link member 23 is rotatably connected to the middle portion of the corresponding rear leg 35 . In addition, as shown in FIG. 6 , the third link member 23 is rotatably connected to the lower portion, particularly the lower end portion, of the corresponding handle extending protrusion 42 of the handle 40 . As shown in FIG. 7 , the third link member 23 is connected to the handle extending protrusion 42 via the main shaft member 25 extending in the width direction. That is, in the example of the drawing, the connection position between the third link member 23 and the handle 40 is the same as the connection position between the second link member 22 and the handle 40 . In addition, the rotational axis of the third link member 23 and the handle 40 coincides with the rotational axis of the second link member 22 and the handle 40 .

The stroller body 20 having the above-described integral configuration can be folded by rotating the respective constituent elements relative to each other. Specifically, by slightly pulling the handle 40 rearward and upward, and then lowering the handle 40 , the third link member 23 is rotated in the clockwise direction in FIG. 2 with respect to the rear leg 35 . Based on this operation, the first link member 21 and the second link member 22 are rotated in the clockwise direction in FIG. 2 with respect to the handle extending portion 42 of the handle 40 . As shown in FIG. 3 , by this operation, the handle 40 and the front leg 30 are arranged approximately in parallel in a side view, and the position of the handle 40 is lowered. In this way, the stroller body 20 can be folded. In the folded state shown in FIG. 3 , the stroller body 20 can be downsized in size along the front-rear direction and the vertical direction. On the other hand, in order to unfold the stroller body 20 from the folded state, the reverse sequence to the above-described folding operation may be employed.

Next, the seat 60 held by the stroller body 20 will be described. The seat 60 is a part where the infant sits. As shown in FIG. 8 , the seat 60 has a pair of bases 61 spaced apart in the width direction. The base portion 61 is a portion supported by the holding member 50 provided on the stroller body 20 .

As shown in FIG. 1 , a seat portion 65 and a back portion 70 are provided between the pair of base portions 61 . The seat 60 is a portion facing the buttocks of the infant sitting in the stroller 10 . The seat portion 65 forms a seat surface 65A that supports the buttocks of the infant through the seat cushion 80 . The back 70 is the part opposite to the back of the infant. The back portion 70 can be moved relative to the seat portion 65 . That is, the seat 60 has a seat back adjustment function. The seat 60 also functions as a bed for an infant to recline by laying the back 70 flat with respect to the seat 65 .

As shown in FIGS. 1 and 8 , the seat portion 65 includes a front frame member 66 , a center frame member 67 , and a seat plate 68 provided between the pair of base portions 61 . The front frame member 66 is a frame member formed in a U-shape. Portions corresponding to both ends of the U-shaped front frame member 66 are fixed to the corresponding base portions 61 . The front frame member 66 extends forward from the pair of bases 61 . In addition, the center frame material 67 is a frame material extending linearly in the width direction. The front frame member 66 and the center frame member 67 are formed of, for example, metal pipes. The front frame material 66 and the center frame material 67 form a circumferential frame that supports the seat plate 68 from below. The seat plate 68 is a plate-shaped member formed using resin and/or metal. In the illustrated example, the seat plate 68 divides the seat surface 65A. However, instead of the seat plate 68, a fabric stretched on the front frame member 66 and the center frame member 67 may be used. In addition, the seat plate 68 may be supported by a pair of bases 61, and the front frame member 66 and the center frame member 67 may be omitted.

The back portion 70 has a rear frame member 71 provided between the pair of base portions 61 . The rear frame member 71 is a frame member formed in a U-shape. Portions corresponding to both ends of the U-shaped rear frame member 71 are connected to the corresponding base portions 61 . The rear frame member 71 is rotatable relative to the base portion 61 about an axis extending in the width direction. The rear frame member 71 extends upward or rearward from the pair of bases 61 . By rotating the rear frame member 71 relative to the base portion 61 , the back portion 70 can be inclined rearward relative to the seat portion 65 . The back 70 may also have a cloth-like material and/or a plate-like material supported by the rear frame material 71 .

Further, as shown in FIG. 8 , the seat 60 has a pair of side support portions 72 extending upward from each base portion 61 , respectively. The side support portion 72 rotatably supports the side frame member 73 around an axis parallel to the width direction. In addition, a pair of connecting frame members 74 are provided between the side frame members 73 and the rear frame members 71 . A pair of connection frame material 74 is arrange|positioned so that it may be spaced apart in the width direction. The connection frame member 74 is rotatable with respect to the rear frame member 71 and the side frame member 73 . The connection frame member 74 functions as a link member, and moves the other of the rear frame member 71 and the side frame member 73 as the other is moved. In addition, the connecting frame member 74 is formed between the rear portion of the rear frame member 71 and the rear portion of the side frame member 73 to form a wall portion located behind the head of the infant in a state where the back portion 70 is lying down, and is raised on the back portion 70 . The wall is located behind the head of the infant in the raised state.

In addition, as shown in FIGS. 1 and 2 , the seat 60 includes a pair of shielding support materials 75 extending from the respective bases 61 , and a shielding material 76 that is attachable and detachable between the pair of shielding support materials 75 . Each protective support material 75 is slightly rotatable around the base portion 61 centered on an axis extending in the width direction. In addition, the seat 60 has a pair of hood support members 77 respectively fixed to the side support portions 72 . Although not shown, a hood frame is hung between the pair of hood support members 77 , and a hood cloth is attached to the hood frame.

In addition, in FIG. 8, illustration of the seat plate 68, the shield material 76, the roof support material 77, etc. is abbreviate|omitted.

Next, the holding member 50 provided in the stroller body 20 and holding the seat 60 will be described. As shown in FIG. 6 , a pair of holding members 50 are provided at positions between the pair of first link members 21 in the width direction. The pair of holding members 50 are arranged apart from each other in the width direction. As shown in FIG. 1 , the seat 60 is held at a position between the pair of first link members 21 in the width direction by the pair of holding members 50 .

The holding member 50 has a support portion 53 that supports a supported portion 63 provided on the seat 60 . The support portion 53 may be formed as a receiving hole that opens upward, or an insertion portion that protrudes upward. The supported portion 63 may be configured as a downwardly protruding insertion portion that can be inserted into the receiving hole of the supporting portion 53 , or a downwardly open receiving hole into which the insertion portion of the supporting portion 53 can be inserted. In the example of the drawing, the holding member 50 has, as the support portion 53, a receiving hole formed in the support surface 52 facing upward. The support surface 52 expands in the front-rear direction. In other words, a receiving hole serving as the support portion 53 is formed in the center portion of the support surface 52 extending in the front-rear direction. The support surface 52 faces upward, and a receiving hole serving as the support portion 53 opens upward.

On the other hand, the pair of base portions 61 of the seat 60 that are spaced apart in the width direction have the supported portions 63 . That is, the pair of holding members 50 are provided so as to be spaced apart in the width direction, respectively corresponding to the respective base portions 61 . The base 61 has a supported surface 62 facing downward. The supported surface 62 expands in the front-rear direction corresponding to the supporting surface 52 . The insertion portion serving as the supported portion 63 protrudes downward from the center portion in the front-rear direction of the supported surface 62 .

According to such a configuration of the support portion 53 and the supported portion 63 , the seat 60 can be held by the front legs 30 via the holding member 50 by lowering the seat 60 onto the stroller body 20 from above in the vertical direction. More specifically, when the seat 60 is lowered, the supported parts 63 protruding downward from the pair of base parts 61 are inserted into the supporting parts 53 of the corresponding holding members 50 . Then, the seat 60 is held on the stroller body 20 by bringing the supported surface 62 of the base portion 61 into contact with the supporting surface 52 of the holding member 50 . When the seat 60 is held by the stroller body 20 , the support portion 53 is engaged with the supported portion 63 , so that the seat 60 is restricted from moving relative to the stroller body 20 in the horizontal direction.

In addition, the pair of holding members 50 and the pair of bases 61 are arranged to be separated from each other in the width direction. Therefore, in a state in which the seat 60 is held by the stroller body 20 , it is possible to effectively restrain the displacement caused by the relative rotation of the seat 60 and the stroller body 20 centered on the axis along the front-rear direction, and to effectively restrain the displacement along the axis of the stroller body 20 . The axis in the up-down direction is the displacement caused by the relative rotation of the seat 60 and the stroller body 20 . In addition to this, as shown in FIGS. 6 and 8 , the support surface 52 extends forward and backward in the support portion 53 , and the supported surface 62 extends in the front and rear of the supported portion 63 . Therefore, even in a state where the seat 60 is held by the stroller body 20, the displacement caused by the relative rotation of the seat 60 and the stroller body 20 about the axis along the width direction can be effectively restricted. Thereby, the seat 60 can be stably held by the seat 60 provided in the stroller body 20 .

It should be noted that, in the example shown in the figure, the stroller body 20 has a link structure for enabling the folding operation. These link structures include a pair of structures that are symmetrical about the center plane in the width direction separated from each other in the width direction. In addition, the pair of holding members 50 are arranged between the pair of structures, and the seat 60 is held between the pair of structures. Specifically, the seat 60 is held between the pair of first link members 21 , between the pair of front legs 30 , between the pair of rear legs 35 , and between the pair of handle extending protrusions 42 . Such a configuration of the seat 60 can avoid interference with the constituent elements of the stroller body 20 . That is, the holding member 50 separates the seat 60 from the stroller body 20 and holds the seat 60 . Therefore, as shown in FIG. 9 , the orientation of the seat 60 held by the stroller body 20 via the holding member 50 can be changed. As a result, only by changing the orientation of the seat 60, the infant shown in FIG. It switches between the opposite state opposite to the operator (protector) of the stroller 10 . In addition, such an arrangement of the seat 60 can also avoid interference between the stroller body 20 and the seat 60 during the folding operation. Therefore, as shown in FIG. 3 , the stroller body 20 can be folded while holding the seat 60 . In the stroller 10 shown in the figure, the stroller 10 can be folded in a state where the seat 60 is held by the stroller body 20 in any of the facing state and the rear surface state.

In addition, as shown in FIG. 8 , the seat 60 has protrusions 64 that are urged inward in the width direction from each supported portion 63 . In addition, as shown in FIG. 6 , in the holding member 50 , a protrusion receiving portion 54 that receives the protrusion 64 is formed on the inner wall portion in the width direction among the wall portions forming the support portion (accommodating hole) 53 . Since the lower side surface of the protrusion 64 is inclined, when the supported portion 63 is inserted into the supporting portion 53 , it is automatically embedded in the supported portion 63 . Then, when the protrusion 64 reaches a position facing the protrusion receiving portion 54 , the protrusion 64 is fitted into the protrusion receiving portion 54 by the urging force from an urging mechanism not shown. That is, by inserting the supported portion 63 into the supporting portion 53 , the seat 60 is fixed to the holding member 50 .

As shown in FIG. 6 , the holding member 50 has a protrusion releasing mechanism 55 at a position opposite to the protrusion receiving portion 54 . The protrusion releasing mechanism 55 protrudes inward in the width direction from the holding member 50 . By pressing the protrusion releasing mechanism 55 outward in the width direction, the protrusion 64 fitted into the protrusion receiving portion 54 can be pushed out from the protrusion receiving portion 54 . That is, when the seat 60 is detached from the stroller body 20 , by operating the protrusion releasing mechanism 55 , the fixing by the fixing mechanism including the protrusion 64 and the protrusion receiving portion 54 can be released.

Next, the attachment structure and attachment position of the holding member 50 to the stroller body 20 will be described.

In the present embodiment, as shown in FIG. 7 , each holding member 50 is connected to a plurality of connection positions JPX and JPY that are separated from each other in the stroller body 20 . As a result, in the example shown in the figure, each holding member 50 is fixed to the stroller body 20 and is stably held by the stroller body 20 . Moreover, the support part 53 of the holding member 50 is located above one connection position JPX of the stroller body 20 . Therefore, the weight of the seat 60 held by the holding member 50 can be stably and efficiently supported by the stroller body 20 . Thereby, the backlash of the holding member 50 with respect to the stroller body 20 can be effectively reduced. In addition, it is not necessary to increase the size of the holding member 50 or provide a large number of holding members 50, so that the design of the stroller 10 can also be improved.

In the illustrated example, first, each holding member 50 is connected to the handle extension portion 42 on the rotation axis AR1 of the second link member 22 and the handle extension portion 42 . As a specific configuration, as shown in FIGS. 6 and 7 , each holding member 50 is connected to a spindle member 25 that rotatably connects the second link member 22 and the handle extension 42 . That is, in the example shown in the figure, the first connection position JPX of the holding member 50 with respect to the stroller body 20 is the main shaft member 25 . The main shaft member 25 penetrates the holding member 50 . The main shaft member 25 also penetrates the second link member 22 and the third link member 23 . Therefore, the holding member 50 is not only connected to the handle extension 42 of the handle 40 via the main shaft member 25 , but also connected to the second link member 22 and even the third link member 23 .

In addition, each holding member 50 is connected to the reinforcing connecting member 45 of the handle 40 . The reinforcement connection member 45 is connected to the handle extension protrusion 42 as a part of the handle 40 . That is, in the example shown in the figure, the second connection position JPY of the holding member 50 with respect to the stroller body 20 is the reinforcing connection member 45 . As shown in FIG. 7 , the holding member 50 has a through hole 56 through which the reinforcing connection member 45 passes. The cross-sectional shape of the reinforcing connecting member 45 is circular and slightly flat. The through hole 56 of the holding member 50 is also slightly flat. Therefore, relative rotation of the holding member 50 with respect to the stroller body 20 on the axis along the width direction is restricted by inserting the reinforcing connection member 45 through the through hole 56 of the holding member 50 .

In such a stroller 10 , the first connection position JPX between the holding member 50 and the stroller body 20 is the main shaft member 25 and is connected to the lower portion of the holding member 50 . Moreover, as shown in FIG. 7, the support part 53 of the holding member 50 is arrange|positioned in the position shifted upward along the vertical direction from the main shaft member 25. Therefore, the weight of the seat 60 held by the holding member 50 can be efficiently supported by the stroller body 20 without increasing the size of the holding member 50 or providing a large number of holding members 50 .

In addition, the second connection position JPY of the holding member 50 and the stroller main body 20 is the reinforcing connection member 45 and is connected to the rear portion of the holding member 50 . Therefore, as shown in FIG. 7 , the holding member 50 faces the reinforcing connection member 45 from the front in the front-rear direction. Moreover, the support part 53 of the holding member 50 is arrange|positioned in the position shifted from the reinforcement connection member 45 toward the front along the front-back direction. Therefore, the stroller body 20 can effectively and stably receive the inertial force from the seat 60 during forward movement through the holding member 50 . Thereby, generation|occurrence|production of the backlash|play of the holding member 50 with respect to the stroller main body 20 can be suppressed effectively.

In addition, when the distance between the two connection positions JPX and JPY of the stroller body 20 is close, the holding member 50 tends to loosen with respect to the stroller body 20 . On the other hand, if the insertion length IL in the vertical direction between the support portion 53 of the holding member 50 and the supported portion 63 of the seat 60 is long, the backlash of the seat 60 with respect to the holding member 50 can be effectively suppressed. On the other hand, if the insertion length IL is long, a large force is applied to the holding member 50, and the holding member 50 tends to loosen with respect to the stroller body 20. In contrast, as shown in FIG. 7 , the distance D between the two connection positions JPX and JPY is made longer than the vertical insertion length IL of the support portion 53 of the holding member 50 and the supported portion 63 of the seat 60 . Thereby, generation|occurrence|production of the backlash|play of the holding member 50 with respect to the stroller main body 20 can be suppressed more effectively.

In addition to this, in order to effectively receive the force applied to the holding member 50 by the stroller body 20, it is effective to shorten the distances D1 and D2 from the support portion 53 of the holding member 50 toward the stroller body 20 to the connecting positions JPX and JPY . The distance from the support portion 53 of the holding member 50 to any of the connection positions JPX and JPY, in particular, the shortest distance between the support portion 53 of the holding member 50 and any connection position is preferably smaller than the edge of the support portion 53 and the supported portion 63 . The insertion length IL in the up-down direction is short. In the illustrated example, the shortest distance from the support portion 53 of the holding member 50 to any of the connection positions JPX and JPY is shorter than the vertical insertion length IL of the support portion 53 and the supported portion 63 . That is, as shown in FIG. 7 , the shortest distance D1 between the support portion 53 and the first connection position JPX is shorter than the insertion length IL of the support portion 53 and the supported portion 63 in the vertical direction, and the support portion 53 is connected to the second connection position IL. The shortest distance D2 between the positions JPY is shorter than the insertion length IL of the support portion 53 and the supported portion 63 in the vertical direction.

In particular, in the example shown in the figure, the vertical distance D1 from the support portion 53 to the first connection position JPX located below the support portion 53 is smaller than the vertical insertion length of the support portion 53 and the supported portion 63 in the vertical direction. IL is short. Therefore, the stroller body 20 can effectively support the weight of the seat 60 held by the holding member 50 at the first connection position JPX. The distance D2 in the front-rear direction from the support portion 53 to the second connection position JPY behind the support portion 53 is shorter than the vertical insertion length IL of the support portion 53 and the supported portion 63 . Therefore, the stroller body 20 can effectively and stably receive the inertial force from the seat 60 at the time of forward movement through the holding member 50 at the second connection position JPY.

As a result of the above attachment structure, as shown in FIG. That is, the support part 53 of the holding member 50 is located substantially in the center of the stroller body 20 . Thereby, the seat 60 can be supported stably and efficiently.

However, as described above, the first connection position JPX between the holding member 50 and the stroller body 20 is the main shaft member 25 , and the second connection position JPY is the reinforcement connection member 45 . Therefore, the holding member 50 is connected to the second link member 22 , the third link member 23 , and the handle extending portion 42 of the handle 40 via the main shaft member 25 . In addition, the holding member 50 is connected to the handle extending portion 42 of the handle 40 via the reinforcing connection member 45 . In other words, the holding members 50 are connected to mutually different positions on the handle extension protrusions 42 of the handle 40 via mutually different paths. Therefore, the holding member 50 is fixed relative to the handle 40 . Here, "fixed with respect to the handle 40" means not only being directly connected to the handle, but also indirectly connected to the handle via other members and constantly maintaining the relative position to the handle 40.

As described above, in the unfolded state shown in FIG. 2 , the handle 40 is arranged at a high position. On the other hand, in the folded state shown in FIG. 3 , the handle 40 is arranged at a low position. By fixing the holding member 50 with respect to the handle 40 as described above, in the unfolded state, the seat 60 is arranged at a high position in the vertical direction. By arranging the seat 60 at a high position, it is possible to effectively prevent the infant on the seat 60 from being affected by heat and dust from the ground. In addition, since the seat surface 65A of the seat 60 is high, it is possible to easily and stably get on and off the infant. On the other hand, in the folded state, as shown in FIG. 3 , the handle 40 is arranged in a low position. Together with the handle 40, the seat 60 is also arranged in a low position. Therefore, the folded size of the stroller 10 can be reduced in size.

In addition, the orientation of the holding member 50 is also constant with respect to the handle 40 . Therefore, during the folding operation, the seat 60 held by the holding member 50 does not generate a large moment. On the other hand, the weight of the seat 60 presses the handle 40 . That is, the weight of the seat 60 assists the folding operation of lowering the handle 40 . Therefore, the folding operation can be performed smoothly.

It should be noted that in the illustrated example, in the side view shown in FIG. 2 , the seat surface 65A formed by the seat 60 is positioned above the connection position JP1 of the first link member 21 and the front leg 30 . . Similarly, in the side view shown in FIG. 2 , the back portion 70 is positioned above the connection position JP2 of the first link member 21 and the rear leg 35 with respect to the pivot axis AS1 of the seat portion 65 . In addition, in the side view shown in FIG. 2 , the back part 70 is positioned above the connection position JP4 of the handle 40 and the second link member 22 with respect to the pivot axis AS1 of the seat part 65 . In addition, in the side view shown in FIG. 2, the side frame material 73 is located in the upper position rather than the 1st link member 21 with respect to the swing axis AS2 of the side support part 72. As shown in FIG. In addition, the side frame member 73 is positioned above the connection position JP1 of the first link member 21 and the front leg 30 with respect to the pivot axis AS2 of the side support portion 72, and is positioned higher than the first link member 21 and the front leg 30. The connection position JP2 of the rear leg 35 is positioned above and is positioned above the connection position JP3 of the first link member 21 and the handle 40 . In this way, in the specific example shown in the figure, since the seat 60 is held in a high position in the unfolded state of the stroller 10, it is possible to easily carry out the riding of the infant, the seat back adjustment operation, the opening and closing operation of the canopy, and the like. . On the other hand, since the seat 60 is fixed to the handle 40 as described above, the folded size of the stroller 10 can be sufficiently reduced.

The stroller 10 including the above-described configuration travels when an operator (user, protector) holds the handle connection portion 43 of the handle 40 and pushes the handle 40 . In this stroller 10 , as shown in FIG. 9 , the seat 60 can be held by the holding member 50 by changing the orientation of the seat 60 . That is, when switching between the back state and the opposite state, the handle 40 does not need to be moved. Therefore, the handle 40 is less likely to interfere with other components of the stroller 10 . Therefore, the reinforcement connection member 45 which connects a pair of handle|steering-wheel extension protrusion part 42 which was previously thought impossible to install can also be provided in the handle|steering-wheel main body 41. In the example shown in the drawings, the handle 40 has, in addition to the handle body 41 including a pair of handle extension protrusions 42 and a handle connection portion 43 connecting the ends of the pair of handle extension protrusions 42 , and a pair of handle A reinforcing connecting member 45 to which the extending protrusion 42 is connected at a position separated from the handle connecting portion 43 . The handle body 41 is effectively reinforced by the handle connecting portion 43 , thereby improving the rigidity of the handle 40 . As a result, deformation of the handle 40 can be effectively suppressed when force is applied to the handle connecting portion 43 serving as the upper end portion of the handle 40 . As a result, the force applied to the handle 40 is effectively utilized when the stroller 10 is traveling. In addition, the operator can fully grasp the state of the traveling surface and the like through the handle 40 . Thereby, the maneuverability of the stroller 10 can be significantly improved.

In addition, in the stroller 10 shown in the figure, a member connected between both ends in the width direction of the reinforcement connection member 45 is connected to the handle at a position shifted from the connection position of the reinforcement connection member 45 and the handle extension protrusion 42 . The extension protrusions 42 are connected. More specifically, the member connected between both ends in the width direction of the reinforcing link member 45 includes the holding member 50 . As a result, the rigidity of the handle 40 can be further improved. In particular, since the holding member 50 has a function of holding the seat 60, the rigidity of the handle 40 can be effectively improved without increasing the number of parts.

In addition, the member connected between both ends in the width direction of the reinforcement connecting member 45 is connected to the handle extension portion 42 on the rotation axis AR1 of the second link member 22 and the handle extension portion 42 . More specifically, the member connected between both ends in the width direction of the reinforcing link member 45 further includes the main shaft member 25 . In such a stroller 10, the rigidity of the handle can be further improved. In particular, the rigidity of the main shaft member 25 can also be increased, whereby the folding operation and the unfolding operation can be smoothly performed.

According to the above-described one embodiment, the stroller 10 includes the foldable stroller body 20 and the seat 60 held by the stroller body by the holding member 50 provided in the stroller body. The stroller body includes a first link member 21, a front leg 30 and a rear leg 35 rotatably connected to the first link member, a handle 40 rotatably connected to the first link member, provided on the front leg and the handle The second link member 22 is rotatable relative to the front leg and the handle. The holding member 50 is fixed relative to the handle. In such a stroller 10, when the stroller body 20 is folded, the handle 40 is brought close to the front legs 30, and the handle 40 is lowered. Thereby, the folding size of the stroller 10 in the front-rear direction and the vertical direction can be reduced in size. In addition, in this stroller 10 , the holding member 50 supporting the seat 60 is fixed to the handle 40 . Therefore, the seat 60 also descends when the stroller body 20 is folded. Thereby, the folded size of the stroller 10 can also be effectively reduced in size. Moreover, compared with the 1st link member 21 and the 2nd link member 22, the change of the orientation of the handle|steering-wheel 40 accompanying a folding operation|movement is small. Therefore, the direction change of the seat 60 at the time of folding is also suppressed, and the stroller 10 can be stably folded. In addition, the folding operation of the stroller 10 with the lowering of the handle 40 can be guided by the weight of the seat 60 . As described above, according to the present embodiment, the folded size of the stroller 10 can be sufficiently reduced in size. In addition, the folding operation of the stroller 10 can be performed smoothly and stably.

In the above-described specific example, the holding member 50 holds the seat 60 such that the seat 60 is separated from the stroller body 20 . In such a stroller 10 , if the seat 60 does not interfere with components other than the handle 40 of the stroller body 20 , the stroller 10 can be folded without removing the seat 60 from the stroller body 20 .

In the above-mentioned one specific example, the stroller body 20 holds the seat 60 in a detachable manner, and holds the seat 60 so that the front-rear orientation can be changed. That is, in this stroller 10, it is possible to make the infant sit (opposite state) and move toward the stroller so as to face the operator of the stroller 10 (the protector of the infant, the user of the stroller). Infants and infants are seated forward (back state) on both sides. In addition, if the seat 60 does not interfere with components other than the handle 40 of the stroller body 20 , the stroller 10 can be folded with the seat 60 attached to the stroller body 20 without depending on the orientation of the seat 60 .

In the above-mentioned specific example, the holding member 50 is connected to the handle 40 at two or more positions. Thereby, the holding member 50 can be fixed with respect to the handle 40 with a simple structure.

In the above-described specific example, the handle 40 has: a handle body 41 having a pair of handle extension protrusions 42 and a handle connection part 43 connecting the pair of handle extension protrusions 42; The reinforcement connection member 45 connected to the position separated from the handle connection portion 43 is connected to the reinforcement connection member 45 by the holding member 50 . In such a stroller 10 , the rigidity of the handle 40 is improved by reinforcing the connecting member 45 . Furthermore, by connecting the holding member 50 to the reinforcement connection portion 45 , the seat 60 can be stably held by the stroller body 20 .

In the above-described specific example, the holding member 50 is connected to the handle extending portion 42 on the rotation axis AR1 of the second link member 22 and the handle extending portion 42 . The positions of the second link member 22 and the rotation axis AR1 of the handle 40 are lowered when the stroller body 20 is folded. Along with this descent, the second link member 22 and the handle 40 are rotated about the rotation axis AR1. On the other hand, in this stroller 10 , the weight of the seat 60 held by the holding member 50 can be applied to the rotation axis AR1 of the second link member 22 and the handle extending protrusion 42 . Therefore, the folding operation of the stroller body 20 can be smoothly guided by the weight of the seat 60 .

In the above-described specific example, the holding member 50 is connected to the handle extension portion 42 via the spindle member 25 that rotatably connects the second link member 22 and the handle extension portion 42 . The position of the main shaft member 25 is lowered when the stroller body 20 is folded, and the second link member 22 and the handle 40 are relatively rotated in accordance with the lowering. In addition, the weight of the seat 60 held by the holding member 50 is applied to the spindle member 25, so that the folding operation of the stroller body 20 can be smoothly guided.

In one specific example described above, the stroller body 20 further includes a pair of third link members 23 that are provided between each rear leg 35 and the handle 40 and are rotatable with respect to the corresponding rear leg 35 and the handle 40 . The link member 23 is rotatably connected to the handle extension 42 and the second link member 22 at AR1 via the main shaft member 25 . In such a stroller 10 , the weight of the seat 60 held by the holding member 50 is applied to the main shaft member 25 , thereby also guiding the folding of the third link member 23 and the rear leg 35 connected to the third link member 23 . time action. Therefore, the folding operation of the stroller body 20 can be guided more smoothly.

In the above-described specific example, a pair of holding members 50 are provided to be spaced apart in the width direction between both ends of the reinforcing connection member 45 . In this stroller 10, the seat 60 can be held by a pair of holding members 50 separated in the width direction. Thereby, the stroller body 20 can hold the seat 60 more stably. In addition, the seat 60 can also be held inside the both ends of the reinforcing connection member 45 . At this time, the stroller 10 can be folded while the seat 60 is attached to the stroller body 20 by preventing the seat 60 from interfering with the components of the stroller body 20 .

In the above-described specific example, in the side view of the stroller 10 , the holding member 50 is located in a region surrounded by the first link member 21 , the handle 40 , and the rear leg 35 . That is, the stroller body 20 can bear the weight of the seat 60 held by the holding member 50 in a region surrounded by the first link member 21 , the handle 40 , and the rear leg 35 in a side view. In this way, the stroller body 20 can hold the seat 60 stably by receiving the seat 60 in the region having high rigidity, thereby improving the maneuverability of the stroller 10 .

In the specific example described above, in the side view of the stroller 10, the seat surface 65A formed by the seat 60 is positioned above the connection position JP1 of the first link member 21 and the front leg 30 . In addition, the seat 60 has a seat portion 65 and a back portion 70 that is swingable with respect to the seat portion 65. In the side view of the stroller 10, the swing axis AS1 of the back portion 70 with respect to the seat portion 65 is located more than the first link member. The connection position JP2 of the 21 and the rear leg 35 is close to the upper position. In addition, the seat 60 has a seat portion 65 and a back portion 70 that is swingable relative to the seat portion 65. In the side view of the stroller 10, the swing axis AS1 of the back portion 70 relative to the seat portion 65 is located more than the handle 40 and the second The connection position JP4 of the link member 22 is close to the upper position. By raising the height of the seat 60 in this way, the ride comfort of the stroller 10 can be improved, and the infant can easily get on and off the seat 60 . It should be noted that when the stroller 10 is folded, the seat 60 is lowered together with the handle 40 . Therefore, even if the position of the seat surface 65A is raised, the folded size of the stroller 10 can be sufficiently reduced in size.

In the above-described specific example, the seat 60 includes a seat portion 65 , a back portion 70 that can be swung relative to the seat portion 65 , and a position located above the back portion 70 that can be moved relative to the back portion 70 as the back portion 70 is swung. The side frame member 73 on which the seat portion 65 is pivoted is located at a position relative to the pivot axis AS2 of the seat portion 65 relative to the connection position between the first link member 21 and the handle 40 in the side view of the stroller 10 . JP3 is located near the top. In addition, the seat 60 includes a seat portion 65 , a back portion 70 that can be swung with respect to the seat portion 65 , and a seat portion 70 that is positioned above the back portion 70 and can be swung with respect to the seat portion 65 as the back portion 70 is swung. The side frame member 73 is positioned above the first link member 21 with respect to the pivot axis AS2 of the seat portion 65 in the side view of the stroller 10 . By raising the height of the side frame members 73 in this manner, the side frame members 73 can effectively protect infants and young children. In addition, the handling of the side frame member 73 can be easily performed. It should be noted that when the stroller 10 is folded, the seat 60 is lowered together with the handle 40 . Therefore, even if the position of the seat surface 65A is raised, the folded size of the stroller 10 can be reduced in size.

In the above-mentioned specific example, the stroller body 20 includes: a pair of first link members 21 rotatably connected to the respective handle extending protrusions; a pair of first link members 21 rotatably connected to the first link members 21 respectively A pair of front legs 30 and a pair of rear legs 35 ; and a pair of second link members 22 which are provided between each front leg 30 and the handle 40 and are rotatable with respect to the corresponding front leg 30 and the handle 40 . The stroller body 20 holds the seat 60 between the pair of first link members 21 in the width direction. Since the seat 60 does not interfere with the constituent elements of the stroller body 20 , the stroller 10 can be folded while the stroller body 20 holds the seat 60 .

Although one embodiment has been described using a plurality of specific examples, these specific examples are not intended to limit one embodiment. The above-described one embodiment can be implemented in other various specific examples, and various omissions, substitutions, and changes can be made without departing from the gist.

Hereinafter, an example of the modification will be described with reference to the drawings. In the following description and the drawings used for the following description, the same reference numerals as those used for the parts corresponding to the above-described specific examples are used for parts that can be configured in the same way as the above-described specific examples, and overlapping descriptions are omitted. .

For example, in the above-described specific example, the holding member 50 is connected to the stroller body 20 at two connection positions JPX and JPY, but it is not limited to this example, and may be connected to the stroller body 20 at three or more connection positions. The stroller body 20 is connected.

In addition, in the above-mentioned specific example, the example in which the support part 53 of the holding member 50 is provided at the position shifted upward in the vertical direction from any connection position of the stroller main body 20 is shown, but it is not limited to this example. . For example, the support portion 53 of the holding member 50 may be located between the two connection positions JPX and JPY.

Further, the support portion 53 of the holding member 50 may be located on a virtual straight line connecting the two connection positions JPX and JPY. According to such a stroller 10 , the stroller body 20 can effectively bear the weight of the seat 60 held by the holding member 50 . Thereby, the backlash of the holding member 50 with respect to the stroller body 20 can be effectively prevented.

Further, the support portion 53 of the holding member 50 may be located between the two connection positions JPX, JPY in the front-rear direction. According to such a stroller 10 , the stroller body 20 can effectively bear the weight of the seat 60 held by the holding member 50 . In particular, the structure in which the holding member 50 is attached to the stroller body 20 can be provided with excellent rigidity with respect to the moment centered on the axis along the width direction. Thereby, the backlash of the holding member 50 with respect to the stroller body 20 can be effectively prevented.

In addition, in the above-described specific example, the support portion 53 of the holding member 50 has a receiving hole that opens upward, and the supported portion 63 of the seat 60 has a downwardly protruding insertion portion that can be inserted into the receiving hole of the support portion 53 . , but not limited to this example. The support portion 53 of the holding member 50 may have an insertion portion protruding upward, and the supported portion 63 of the seat 60 may have a downwardly opened receiving hole that can receive the insertion portion of the support portion 53 .

In addition, the above-mentioned stroller body 20 and seat 60 are merely examples, and various modifications can be made. For example, as shown in FIG. 10 , one front wheel 33 may be provided at the lower end of each front leg 30 .

It should be noted that although some modifications to the above-described embodiment have been described above, it goes without saying that a plurality of modifications can be appropriately combined and used.

10‧‧‧ Stroller 20‧‧‧Main body of stroller 21‧‧‧First connecting rod part 22‧‧‧Second connecting rod 23‧‧‧The third link part 25‧‧‧Spindle parts 26‧‧‧Front leg connecting parts 27‧‧‧Front parts 28‧‧‧Rear leg connecting parts 29‧‧‧Side link material 30‧‧‧Front legs 31‧‧‧Main material of front leg 32‧‧‧Front wheel retaining parts 32a‧‧‧Installation 32b‧‧‧Intermediate support 32c‧‧‧Axle holding part 33, 38‧‧‧ Wheels 35‧‧‧hind legs 36‧‧‧Main material of hind legs 37‧‧‧Rear wheel retaining parts 38‧‧‧Rear wheel 40‧‧‧Handle 41‧‧‧Handle body 42‧‧‧Handle extension tab 43‧‧‧Handle connection 44‧‧‧Operating device 45‧‧‧Reinforcement of connecting parts 50‧‧‧Retaining Parts 52‧‧‧Support surface 53‧‧‧Support 54‧‧‧Protrusion receiving part 55‧‧‧Protrusion release mechanism 56‧‧‧Through hole 60‧‧‧Seat 61‧‧‧Base 62‧‧‧Supported surface 63‧‧‧Supported part 64‧‧‧Protrusion 65‧‧‧Seat 65A‧‧‧Seat 66‧‧‧Front frame 67‧‧‧Central frame 68‧‧‧Seat plate 70‧‧‧Back 71‧‧‧Rear frame material 72‧‧‧Side support 73‧‧‧Side frame 74‧‧‧Connection frame 75‧‧‧Protective support material 76‧‧‧Protective materials 77‧‧‧Roof support material 80‧‧‧Cushion JP1, JP2, JP3, JP4, JPX, JPY‧‧‧Connection position AR1‧‧‧Rotation axis AS1, AS2‧‧‧Move the axis IL‧‧‧insertion length D‧‧‧Separation distance D1, D2‧‧‧distance

FIG. 1 : is a figure for demonstrating one Embodiment of this invention, and is a perspective view which shows a baby carriage from the front in the unfolded state. FIG. 2 is a side view showing the stroller of FIG. 1 . Fig. 3 shows a side view of the stroller of Fig. 1 in a folded state. FIG. 4 is a perspective view showing the stroller body of the stroller of FIG. 1 from the front in an unfolded state. Fig. 5 is a partially exploded perspective view showing a front portion of the stroller of Fig. 4 . FIG. 6 is an enlarged perspective view showing a stroller body and a holding member of the stroller of FIG. 4 . FIG. 7 is a partial longitudinal sectional view of the stroller of FIG. 2 . FIG. 8 is a perspective view showing a seat of the stroller of FIG. 1 . 9(a) and 9(b) are side views for explaining a method of attaching a seat to the stroller main body. FIG. 10 is a diagram corresponding to FIG. 1 , and is a diagram for explaining a modification of the stroller.

10‧‧‧ Stroller

20‧‧‧Main body of stroller

21‧‧‧First connecting rod part

22‧‧‧Second connecting rod

23‧‧‧The third link part

26‧‧‧Front leg connecting parts

27‧‧‧Front parts

28‧‧‧Rear leg connecting parts

29‧‧‧Side link material

30‧‧‧Front legs

31‧‧‧Main material of front leg

32‧‧‧Front wheel retaining parts

33, 38‧‧‧ Wheels

35‧‧‧hind legs

36‧‧‧Main material of hind legs

37‧‧‧Rear wheel retaining parts

38‧‧‧Rear wheel

40‧‧‧Handle

41‧‧‧Handle body

42‧‧‧Handle extension tab

43‧‧‧Handle connection

44‧‧‧Operating device

50‧‧‧Retaining Parts

60‧‧‧Seat

65‧‧‧Seat

65A‧‧‧Seat

68‧‧‧Seat plate

70‧‧‧Back

71‧‧‧Rear frame material

72‧‧‧Side support

73‧‧‧Side frame

74‧‧‧Connection frame

75‧‧‧Protective support material

76‧‧‧Protective materials

77‧‧‧Roof support material

80‧‧‧Cushion

Claims (13)

A stroller includes: a stroller body that can be folded; and a seat held by a holding member provided to the stroller body, the stroller body having: a first link member; a front a leg connected to the first link member and rotatable relative to the first link member; a rear leg connected to the first link member and rotatable relative to the first link member; a handle connected to the first link member and rotatable relative to the first link member; and a second link member disposed between the front leg and the handle and rotatable relative to the front leg and the handle , the holding member is fixed relative to the handle, wherein the handle comprises: a handle body having a pair of handle extension protrusions and a handle connection portion connecting the pair of handle extension protrusions; and a reinforcement connection member, which connects the one The handle extending protrusion is connected at a position separated from the handle connecting portion, and the holding member is connected to the reinforcing connecting member; the holding member is connected to the handle on the rotation axis of the second link member and the handle extending protrusion Extension tabs are attached. The stroller of claim 1, wherein the holding member retains the seat in such a manner that the seat is separated from the stroller body. The stroller according to claim 1, wherein the stroller body retains the seat in a detachable manner, and retains the seat in a manner capable of changing front and rear orientations. The stroller of claim 1, wherein the holding member is connected to the handle at more than two locations. The stroller according to claim 1, wherein the holding member is connected to the handle extension portion by a spindle member that rotatably connects the second link member to the handle extension portion. The stroller according to claim 5, wherein the stroller body further comprises a pair of third link members, the pair of third link members are disposed between each rear leg and the handle, and can be relative to the corresponding The rear leg and the handle are rotated, and the third link member is rotatably connected to the handle extension portion and the second link member via the main shaft member. The stroller according to claim 1, wherein a pair of holding members are provided apart from each other in the width direction between both ends of the reinforcing connection member. The stroller according to claim 1, wherein the holding member is located in an area surrounded by the first link member, the handle, and the rear leg in a side view. The stroller according to claim 1, wherein, in a side view, the seat surface formed by the seat is positioned above the connection position between the first link member and the front leg. The stroller of claim 1, wherein the seat has a seat and a back that can be swung with respect to the seat, and in a side view, an axis of swinging of the back with respect to the seat is located more than the first The connecting position of the link member and the rear leg is close to the upper position. The stroller of claim 1, wherein the seat has a seat portion and a back portion that can be pivoted relative to the seat portion, the pivot axis of the back portion relative to the seat portion being located more than the handle and the back portion in a side view. The connection position of the second link member is close to the upper position. The stroller of claim 1, wherein the seat has: A seat; a back, which can be swayed relative to the seat; and a side frame material, which is located at a position closer to the upper than the back, and can be swung relative to the seat as the back is swung. In a side view, the side frame material is positioned above the connection position of the first link member and the handle with respect to the pivot axis of the seat. The stroller of claim 1, wherein the stroller main body has: a pair of first link members, which are respectively connected to the handle extension protrusions and are rotatable relative to the corresponding handle extension protrusions; a pair of front legs , which are respectively connected with each first link member and can rotate relative to the corresponding first link member; a pair of rear legs, which are respectively connected with each first link member and can be relative to the corresponding first link member rotation; and a pair of second link members provided between each front leg and the handle and rotatable relative to the corresponding front leg and the handle, the stroller body holding the seat in the width direction between a pair of first link members.

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