JP6976603B2 - baby carriage - Google Patents

Description

The present invention relates to a baby carriage.

Baby carriages used to take out infants are widespread. As disclosed in Patent Document 1, it is known that the baby carriage can be reclined by changing the inclination angle of the back support facing the back of the baby from the back. In this baby carriage, the reclining position of the back support can be maintained by supporting the back support from the back side by the reclining member.

Japanese Unexamined Patent Publication No. 2018-202982

In the reclining mechanism disclosed in Patent Document 1, the back support that supports the back of the infant is supported so as to be suspended by a reclining member. In this baby carriage, vibrations and impacts applied to the baby carriage due to unevenness of the traveling surface and the like are transmitted to the back support via the reclining member. When vibration or impact is transmitted to the back support, the comfort of the baby carriage is reduced, that is, the riding comfort and comfort of the baby are deteriorated.

The present invention has been made in consideration of such a point, and an object of the present invention is to alleviate vibrations and impacts on a swingable back support.

The baby carriage according to the present invention
With the main body frame
A seat support unit having a back support that can swing with respect to the main body frame, and
A reclining member that is connected to the main body frame and supports the back support from the back side.
A cushioning member provided between the back support and the reclining member is provided.

In the baby carriage according to the present invention, the reclining member may support the tilt angle of the back support in a variable manner.

In the baby carriage according to the present invention, the length of the portion of the reclining member that supports the back support may be variable.

In the baby carriage according to the present invention, the cushioning member may be held by the back support.

In the baby carriage according to the present invention
The back support has a base frame and a base cloth material held by the base frame.
The cushioning member may be arranged on the base frame.

In the baby carriage according to the present invention, the cushioning member may be held by the base cloth material.

In the baby carriage according to the present invention
The base frame has a pair of side frame portions and a connecting frame portion that connects the tips of the pair of side frame portions.
The base cloth material is attached to the pair of side frame portions and the connecting frame portion in a stretched state.
The cushioning member may be arranged on the back side of each side frame portion.

In the baby carriage according to the present invention, each cushioning member may extend along the side frame portion.

In the baby carriage according to the present invention, the portion of the cushioning member located between the reclining member and the back support may be changed according to the inclination angle of the back support.

In the baby carriage according to the present invention
The cushioning member has a longitudinal direction and has a longitudinal direction.
As the back support swings from an upright state to an inclined state, the portion of the cushioning member located between the reclining member and the back support is from one side in the longitudinal direction. It may be changed to the other side.

In the baby carriage according to the present invention, the cushioning member may be elastically compressively deformable until the thickness is 70% or less, and more preferably elastically compressively deformable until the thickness is 50% or less. It may be more preferably elastically compressively deformable until the thickness is 30% or less, and more preferably elastically compressively deformable until the thickness is 20% or less.

According to the present invention, it is possible to alleviate vibrations and impacts on the swingable back support.

It is a figure for demonstrating one Embodiment of this invention, and is the perspective view for demonstrating the whole structure of a baby carriage. The side view which shows the baby carriage of FIG. 1 with the handle arranged in the 1st position (rear push position). The side view which shows the baby carriage of FIG. 1 in the state which the handle is arranged in the 2nd position (face-to-face push position), and the back support is inclined to the back side. The side view which shows the baby carriage of FIG. 1 in the state which the handle is arranged in the 2nd position (face-to-face push position), and the back support stands up. The side view which shows the baby carriage of FIG. 1 in the folded state. The perspective view which shows the part of the baby carriage of FIG. A perspective view showing a part of the baby carriage of FIG. 1 from below. The plan view which shows the back support and the reclining mechanism of the stroller of FIG. 1 taken out. The plan view which shows the back support in a state inclined to the back side. Top view showing the back support in the standing state.

Hereinafter, an embodiment of the present invention will be described with reference to a specific example shown in the drawings.

1 to 8B are diagrams for explaining an embodiment of a baby carriage according to the present invention. Of these, FIGS. 1 to 4 show the overall configuration of a specific example of a baby carriage. 5 and 6 are perspective views partially showing the baby carriage.

The baby carriage 10 of the present embodiment has a main body frame 12, a seat support unit 50 having a back support 51 swingable with respect to the main body frame 12, and a back support 51 connected to the main body frame 12 from the back side. It has a reclining member 56 that supports it. In the baby carriage 10 of the present embodiment, a device is made to alleviate the vibration and impact on the back support 51 that can swing for the reclining operation. Specifically, the baby carriage 10 of the present embodiment has a cushioning member 60 provided between the back support 51 and the reclining member 56, and the cushioning member 60 is used to reach the back support 51. The vibration and impact of the stroller are alleviated.

The baby carriage 10 shown in FIGS. 1 to 4, which is a specific example of the present embodiment, has a foldable baby carriage main body 11. The baby carriage main body 11 has a main body frame 12 and a seat support unit 50 having a back support 51 swingable with respect to the main body frame 12. The main body frame 12 has front legs 14, rear legs 16, and a handle 40 that can swing back and forth. Wheels 18 are rotatably provided at the lower ends of the front legs 14 and the rear legs 16.

In the illustrated embodiment, the handle 40 is swingable between the first position and the second position. In the illustrated example, the first position of the handle 40 is the back push position (see FIGS. 1 and 2) and the second position of the handle 40 is the face-to-face push position (see FIGS. 3A and 3B). As shown in FIG. 2, the handle 40 is inclined with respect to the vertical direction and extends rearward at the first position, which is the back pushing position. When the handle 40 is arranged at the first position which is the back push position, the operator (guardian) grips the handle 40 from the back side of the infant and operates the baby carriage 10. At this time, the infant can enjoy the scenery while facing the front in the traveling direction while the baby carriage 10 is running. As shown in FIGS. 3A and 3B, the handle 40 is inclined with respect to the vertical direction and extends forward at the second position, which is the facing push position. When the handle 40 is arranged at the second position, which is the face-to-face push position, the operator grips the handle 40 from the position on the front leg side facing the baby and operates the baby carriage 10. At this time, the stroller 10 can be driven so that the rear leg side of the stroller 10 is in front of the traveling direction.

Further, in the illustrated baby carriage 10, the wheels 18 provided at the lower ends of the front legs 14 form casters and are rotatable and rotatable. Similarly, the wheels 18 provided at the lower ends of the rear legs 16 form casters and are rotatable and rotatable. In this example, from the viewpoint of maneuverability of the baby carriage 10, the wheel 18 provided on the leg located in the front in the traveling direction is allowed to turn, and the wheel 18 provided on the leg located in the rear in the traveling direction is allowed to turn. It may be regulated. It should be noted that the switching of the wheel 18 turning allowance and regulation may be performed manually or automatically according to the position of the handle 40. As a configuration for automatically switching the permission and regulation of turning of the wheel 18 according to the position of the handle 40, the configuration disclosed in Japanese Patent Application Laid-Open No. 2015-13568 can be used.

By the way, in the present specification, the terms "front", "rear", "top", "bottom", "front-back direction", and "vertical direction" for the baby carriage and its components are used unless otherwise specified. It means "front", "rear", "up", "down", "front-back", and "up-down" with respect to the baby carriage and its components in the deployed state. More specifically, the "front-back direction" is the direction connecting the lower left and the upper right of the paper surface in FIG. 1, and corresponds to the left-right direction of the paper surface in FIG. Unless otherwise specified, the "front" is the side facing the baby on board, 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. On the other hand, the "vertical direction" is a direction orthogonal to the traveling surface of the baby carriage. Therefore, when the traveling surface is a horizontal plane, the "vertical direction" refers to the vertical direction. Further, the "horizontal direction" is a width direction, which is a direction orthogonal to both the "front-back direction" and the "vertical direction". Further, the "rear side" used in connection with the back support 51 and the like means the side opposite to the side facing the baby in the baby carriage 10. Therefore, the "back side" is usually the rear side or the lower side.

First, the baby carriage main body 11 will be described as an overall configuration of the baby carriage. As shown in FIG. 1, the illustrated baby carriage main body 11 is generally located at the center in the lateral direction and has a substantially symmetrical configuration centered on a surface along the front-rear direction and the vertical direction. As shown in FIG. 1, the baby carriage main body 11 has a pair of front legs 14 arranged on the left and right, and a pair of rear legs 16 arranged on the left and right, respectively. The main body frame 12 further has a first link L1, a second link L2, a third link L3, and a fourth link L4 arranged on the left and right, respectively. The front legs 14, the rear legs 16, and the first to fourth links L1 to L4 function as links that make the baby carriage body 11 foldable and expandable. In the illustrated example, the first link L1 also functions as an armrest 21. That is, the armrest 21 constitutes the first link L1.

As shown in FIG. 2, the upper end portion of the front leg 14 is rotatably (swingable) connected to the front portion of the first link L1 arranged on the corresponding side (left side or right side). The upper end portion of the rear leg 16 is rotatably (swingable) connected to the front portion of the first link L1 arranged on the corresponding side (left side or right side). Further, as shown in FIGS. 3A and 3B, the upper portion of the second link L2 is rotatable (swingable) to the rear portion of the first link L1 arranged on the corresponding side (left side or right side). It is connected. In the illustrated example, the second link L2 has a main link material 22 and an upper connecting material 23 fixed to the upper end of the main link material 22. The main link material 22 is made of, for example, a metal pipe. The upper connecting material 23 is made of, for example, a resin molded product. The second link L2 is rotatably (swingable) connected to the rear end portion of the armrest 21 in the upper connecting member 23.

As shown in FIGS. 1 to 3B, the third link L3 is rotatably (swingable) connected to the front leg 14. The fourth link L4 is rotatably (swingable) connected to the rear leg 16. The third link L3 is rotatably (swingable) connected to at least one of the second link L2 and the fourth link L4. The fourth link L4 is rotatably (swingable) connected to at least one of the second link L2 and the third link L3. The second link L2 is rotatably (swingable) connected to at least one of the third link L3 and the fourth link L4.

As shown in FIGS. 1 and 5, in the illustrated example, a frame material 24 and a front connecting material 25 and a rear connecting material 26 fixed to the frame material 24 are provided as members forming the third link L3. ing. The frame material 24 is made of, for example, a bent metal pipe. The front connecting material 25 and the rear connecting material 26 are made of, for example, a resin molded product. The frame material 24 has a pair of side portions 24a extending in the front-rear direction and a connecting portion 24b for connecting the pair of side portions 24a in the front, forming a U-shape. One end of the front connecting member 25 is rotatably connected to the front leg 14, and the other end is fixed to the front portion of the side portion 24a. The rear connecting member 26 is fixed to the rear end portion of the side portion 24a. In this example, the third link L3 on the right side is formed by the side portion 24a of the frame material 24 located on the right side and the front connecting material 25 and the rear connecting material 26 on the right side fixed to the side portion 24a on the right side. ing. Similarly, the side portion 24a of the frame member 24 located on the left side and the front connecting member 25 and the rear connecting member 26 on the left side fixed to the side portion 24a on the left side form a third link L3 on the left side. There is.

As shown in FIG. 5, in the illustrated example, the fourth link L4 includes a spindle member 28 rotatably connected to the rear leg 16 and an end member 29 fixed to the upper end portion of the spindle member 28. have. The spindle 28 is made of, for example, a metal pipe. The end member 29 is made of, for example, a resin molded product. The spindle member 28 is rotatably connected to the intermediate portion of the rear leg 16 at the lower end portion. The end member 29 is rotatably connected to the second link L2 and the third link L3. In the illustrated example, the second link L2, the third link L3, and the fourth link L4 are rotatably connected to each other by using the same shaft member 30. The shaft member 30 penetrates the main link member 22 of the second link L2, the end member 29 of the fourth link L4, and the rear connecting member 26 forming the third link L3. With this configuration, the second link L2, the third link L3, and the fourth link L4 are rotatable about the axis corresponding to the central axis of the shaft member 30.

The baby carriage body 11 further has a swingable handle 40. In the illustrated example, the handle 40 has a handle body 41 swingably attached to other components of the baby carriage body 11 and a holding body 42 provided on the handle body 41. In the illustrated baby carriage main body 11, the handle 40 has a first position (rear push position) tilted backward from the vertical axis and a second position (face-to-face push position) tilted forward from the vertical axis in the side view. It is possible to swing between.

As shown in FIG. 1, the handle body 41 includes a pair of shaft portions 41a extending substantially parallel to each other and an intermediate portion 41b connecting the pair of shaft portions 41a. The handle body 41 has a substantially U-shaped shape as a whole. The handle 40 is rotatably (swingable) connected to other components of the stroller body 11 at both ends of the U-shape. In the illustrated example, the handle body 41 is rotatably connected to other components using a shaft member 30. That is, the second link L2, the third link L3, the fourth link L4, the handle 40, and the base frame 31 described later can rotate with respect to each other about the same axis defined by the shaft member 30. ing. The holding body 42 provided on the handle 40 engages with the first position holding member 36 (see FIGS. 3A and 3B) of the main body frame 12 to maintain the handle 40 in the first position shown in FIG. can do. The holding body 42 provided on the handle 40 engages with the second position holding member 37 (see FIG. 2) of the main body frame 12 to maintain the handle 40 in the second position shown in FIGS. 3A and 3B. can do.

Further, as shown in FIG. 1, the baby carriage main body 11 has a front connecting member 15 for connecting a pair of front legs 14 and a rear connecting member 17 for connecting a pair of rear legs 16 as components extending in the lateral direction. ,have. The front connecting member 15 functions as a footrest. Further, a central connecting member 27 is provided between the pair of rear connecting members 26. The front connecting member 15, the rear connecting member 17, and the central connecting member 27 can suppress the lateral deformation of the baby carriage 10. Further, a flexible guard member 38 is detachably provided between the pair of first links L1.

The baby carriage main body 11 having the above configuration can be folded by relatively rotating each constituent member. Specifically, by pulling the handle 40 arranged at the first position backward and upward once and then pushing it downward, the fourth link L4 is rotated clockwise with respect to the rear leg 16 in FIG. 2. With this operation, the first link L1 and the third link L3 rotate clockwise with respect to the second link L2 in FIG. By such an operation, the handle 40 and the front leg 14 are brought close to each other while maintaining a substantially parallel arrangement in the side view, and the position of the handle 40 can be lowered. As described above, the baby carriage main body 11 can be folded as shown in FIG. In the folded state of FIG. 4, the dimensions of the baby carriage 10 along the front-rear direction and the up-down direction can be reduced. On the other hand, in order to unfold the baby carriage main body 11 from the folded state, the procedure reverse to the above-mentioned folding operation may be performed.

The baby carriage main body 11 has a state maintaining mechanism (not shown) that regulates the relative rotation of the two constituent members. By operating this state maintenance mechanism, the baby carriage main body 11 can be folded. In the illustrated example, the handle 40 has a remote control device 43 connected to the state maintenance mechanism. As shown in FIG. 1, the remote control device 43 is provided in the intermediate portion 41b of the handle main body 41. By operating the remote control device 43, the state maintenance mechanism operates, and the baby carriage main body 11 can be folded.

By the way, as shown in FIGS. 1 to 3B, the illustrated baby carriage main body 11 further includes a base frame 31 and an upper frame 32, and a connecting frame 33 for connecting the base frame 31 and the upper frame 32. There is. Both the base frame 31 and the upper frame 32 are formed in a U shape. Then, as shown in FIGS. 2, 6 to 8B, the base cloth material 34 is held in a stretched state on the frame material 24 and the base frame 31. As shown in FIG. 6, the base cloth material 34 is attached to a pair of side portions 24a and a connecting portion 24b of the frame material 24. Further, as shown in FIGS. 1 and 7, the base frame 31 has a pair of side frame portions 31a and a connecting frame portion 31b for connecting the tips of the pair of side frame portions 31a. .. The base cloth material 34 is attached to the pair of side frame portions 31a and the connecting frame portion 31b.

The base cloth material 34 supports the seat material 70 having the cushioning property shown by the two-dot chain line in FIG. 2, together with the frame material 24, the base frame 31, the upper frame 32, and the connecting frame 33. In the illustrated example, the frame material 24, the base frame 31, the upper frame 32, the connecting frame 33, and the base cloth material 34 among the components included in the baby carriage main body 11 form a seat support unit 50 that supports the seat material 70. It is composed. Then, other components included in the baby carriage main body 11 constitute the main body frame 12. Among the components constituting the seat support unit 50, the portion held by the base frame 31 of the base frame 31 and the base cloth material 34 constitutes the back support 51 that supports the back of the infant. Further, the portion held by the frame material 24 of the frame material 24 and the base cloth material 34 constitutes the seat support 52 that supports the buttocks of the infant. In FIG. 4, the base frame 31, the upper frame 32, and the connecting frame 33 are not shown.

As shown in FIG. 5, the base frame 31 is penetrated through the shaft member 30 at both ends thereof, at the base end portions of the pair of side frame portions 31a in the illustrated example (see FIG. 5). That is, the base end portion of the back support body 51 is connected to the rear end portion of the seat support body 52 via the shaft member 30. The base frame 31 is rotatable (swingable) with respect to the frame material 24 and other components. That is, the back support 51 is rotatably (swingable) connected to the seat support 52 via the shaft member 30. The back support 51 swings with respect to the seat support 52, so that the seat material 70 can be reclined. In the state shown in FIGS. 3A, 5 and 6, the back support 51 is in an inclined and reclining state, and the infant can lie down on the seat material 70. In the state shown in FIG. 3B, the back support 51 is in an upright state, and the infant can sit on the seat material 70.

The upper frame 32 is rotatably (swingable) connected to the rear end portion of the first link L1 at both ends thereof. The rotation axis of the upper frame 32 with respect to the first link L1 is located on the same line as the rotation axis of the second link L2 with respect to the first link L1. A pair of connecting frames 33 are provided between the base frame 31 and the upper frame 32 so as to be laterally spaced apart from each other. The connecting frame 33 is rotatably connected to the base frame 31 and the upper frame 32 at both ends thereof.

The connecting frame 33 is connected to the tip end portion of the base frame 31, that is, the connecting frame portion 31b. In a state where the back support 51 shown in FIG. 3A is lying down together with the seat support 52, the connecting frame 33 stands up with respect to the base frame 31 forming the back support 51. The connecting frame 33 covers and protects the infant's head from behind. On the other hand, in the state where the back support 51 shown in FIG. 3B is upright, the connecting frame 33 extends upward from the tip of the base frame 31 and functions as a headrest.

The baby carriage main body 11 further has a reclining mechanism 55. The reclining mechanism 55 maintains the back support 51 at a predetermined tilted position with respect to the seat support 52 by restricting the tilt of the back support 51 toward the back surface side. In the illustrated example, the reclining mechanism 55 has a reclining member 56 connected to the main body frame 12. The reclining member 56 is connected to the main body frame 12 and is located on the back side of the back support 51 to support the back support 51 from the back side.

The illustrated reclining member 56 is configured as an elongated string-shaped or belt-shaped member. The reclining member 56 is fixed to the back support 51 with the other end connected to the main body frame 12, thereby restricting the free tilting of the back support 51 to the back side. In particular, in the illustrated example, the reclining member 56 is configured as a pair of left and right string-shaped or belt-shaped members. Each reclining member 56 has one end fixed to the rear portion of the corresponding armrest 21.

The illustrated reclining mechanism 55 further comprises a fixture 57 that secures the reclining member 56 to the back support 51. In the illustrated example, the fixture 57 fixes the pair of reclining members 56 to each other on the back side of the back support 51. As a result, the back support 51 is provided between the pair of reclining members 56, and further swinging to the back side is restricted. The illustrated fixture 57 can releasably hold the pair of reclining members 56. More specifically, the fixture 57 is formed with a through hole through which each reclining member 56 is movably passed. The fixture 57 can be attached to and detached from each reclining member 56 at an arbitrary position along the longitudinal direction. Further, the other end of the reclining member 56, which is opposite to the side connected to the main body frame 12, is attached with an end member 56a to prevent the fixture 57 from falling off, and the size is increased.

FIG. 7 is a plan view showing the back support 51 and the reclining mechanism 55 taken out from the baby carriage main body 11 and the seat support unit 50. A cover member 35 is provided on the back surface side of the base cloth material 34. The cover member 35 is elongated in the lateral direction. The cover member 35 forms an end opening 35a between the cover member 35 and the base cloth material 34 at both ends. A reclining member 56 on the corresponding side is inserted from each end opening 35a. The cover member 35 is formed with a central opening 35b at the center in the lateral direction. A pair of reclining members 56 inserted from the end opening 35a into the path between the cover member 35 and the base fabric 34 extend from the central opening 35b. The fixture 57 is fixed to a pair of reclining members 56 extending from the central opening 35b. The fixture 57 has a size that does not allow it to pass through the central opening 35b. By providing the cover member 35 with respect to the base cloth material 34, it is possible to form a path for the reclining member 56 extending in the lateral direction. As a result, the swing position of the back support 51 can be stably held by using the reclining member 56.

Further, as shown in FIGS. 6-8B, the illustrated reclining mechanism 55 has a tubular cover 58. A pair of left and right tubular covers 58 are provided. One end of the tubular cover 58 is fixed to the main body frame 12. More precisely, one end of the tubular cover 58 is attached to the main body frame 12 together with one end of the reclining member 56 inserted therein. In the illustrated example, each tubular cover 58 and the corresponding reclining member 56 are located at the rear end portion of the corresponding side first link L1, especially at the connection position between the first link L1 and the second link L2. , Is connected. On the other hand, each tubular cover 58 passes through the corresponding end opening 35a and is inserted into the space between the base cloth material 34 and the cover member 35. The other end of each fixture 57 is attached to at least one of the base fabric 34 and the cover member 35 in the space between the base fabric 34 and the cover member 35. That is, in the illustrated example, each reclining member 56 passes through the inside of the tubular cover 58 between the main body frame 12 and the cover member 35 and is not exposed.

The cover member 35 and the tubular cover 58 may be constructed by using a flexible and low-friction cloth material. This makes it possible to smoothly and stably pull out the reclining member 56 from the central opening 35b and pull in the reclining member 56 into the central opening 35b. Therefore, the operation of the reclining mechanism 55 by the guardian of the infant can be simplified and smoothed.

In the baby carriage 10 having the seat support unit 50 and the reclining mechanism 55 described above, the relative inclination angle of the back support 51 with respect to the seat support 52 can be easily changed by operating the fixture 57. .. In the state shown in FIGS. 1, 3A, 5 and 6, the reclining member 56 is pulled into the central opening 35b, and the back support 51 is tilted toward the back side. In the state shown in FIG. 3B, the reclining member 56 is pulled out from the inside of the central opening 35b, and the back support 51 stands upright.

By the way, vibration or impact may be applied to the baby carriage 10 due to contact with the outside or unevenness of the traveling surface during traveling. A cushioning seat material 70 is arranged on the seat support unit 50, and the infant sits or lies on the seat material 70. Therefore, the seat material 70 can effectively absorb vibrations and shocks. However, it may not be possible to sufficiently absorb the vibration and impact transmitted to the infant via the swingable back support 51. The back support 51 is transmitted with impact and vibration via both the connection point to the seat support 52 and the main body frame 12 and the contact point with the reclining member 56. At this time, depending on the inclination angle of the back support 51, a large force for swinging the back support 51 toward the living space side of the infant may be applied to the back support 51.

In response to such a problem, in the present embodiment, a cushioning member 60 is provided between the back support 51 and the reclining member 56. The cushioning member 60 is elastically deformable due to the material or the configuration. The cushioning member 60 can absorb vibration and impact by elastically deforming. For example, the cushioning member 60 may be capable of elastic compression deformation. In this example, the size of the cushioning member 60 in the compression direction is preferably 70% or less, more preferably 50% or less, still more preferably 30% or less, still more preferably 20% or less. Until it becomes possible, it may be made elastically compressively deformable. Such a cushioning member 60 can be made of a polyolefin foam such as polyethylene foam or polypropylene foam, a foam such as urethane, other resin materials, or rubber. Further, as the cushioning member 60, an elastic body that can be elastically deformed by the configuration of a spring or the like can be used.

Such a cushioning member 60 can effectively absorb the force transmitted from the reclining member 56 of the reclining mechanism 55 to the back support 51 of the seat support unit 50. As a result, the comfort of the baby carriage 10 can be effectively improved, and the riding comfort and comfort felt by the baby can be improved.

As shown in FIGS. 6 and 7, the illustrated cushioning member 60 is held by the back support 51. As shown in FIG. 7, by fixing the bag body 61 containing the cushioning member 60 to the back support 51, the cushioning member 60 may be held by the back support 51. That is, in the illustrated example, the cushioning member 60 is held by the base cloth material 34.

Further, as described above, the back support 51 has a rigid base frame 31 and a flexible base cloth material 34. In this example, the cushioning member 60 is preferably arranged on the base frame 31 from the viewpoint of effectively exhibiting the vibration absorption property and the impact absorption property of the cushioning member 60. As shown in FIGS. 6 and 7, the cushioning member 60 faces each side frame portion 31a of the base frame 31 from the back surface side. In particular, in the illustrated example, the pair of cushioning members 60 are arranged laterally spaced apart from each other. Each cushioning member 60 faces the side frame portion 31a on the corresponding side from the back surface side. Further, a cover member 35 is provided between the pair of cushioning members 60. Each cushioning member 60 is arranged in the vicinity of the cover member 35 at a position facing the end opening 35a of the cover member 35 from the lateral direction. As a result, the reclining member 56 extending from the end opening 35a of the cover member 35 can stably pass over the cushioning member 60.

Further, the cushioning member 60 extends outward from each side frame portion 31a in the width direction, that is, to a side away from the center in the lateral direction in the lateral direction. Therefore, as shown in FIG. 6, the reclining member 56 presses the cushioning member 60 against the side frame portion 31a from the back surface side and the outside in the width direction. Therefore, the cushioning member 60 can effectively absorb not only the vibration and the shock transmitted from the back surface side but also the vibration and the shock transmitted from the lateral side.

Further, in the illustrated example, the distance from the swing center of the back support 51 along the direction orthogonal to the swing axis of the back support 51 to the end opening 35a through which the reclining member 56 passes is the back support 51. It is different from the distance from the swing center of the back support 51 along the direction orthogonal to the swing axis to the connection point of the reclining member 56 to the main body frame 12. At this time, the position where the reclining member 56 crosses on the side frame portion 31a changes with the swinging motion of the back support 51. Therefore, as shown in FIG. 7, each cushioning member 60 extends along the base frame 31. That is, the illustrated cushioning member 60 has a longitudinal direction. The longitudinal direction of the cushioning member 60 is parallel to the longitudinal direction of the side frame portion 31a. According to this example, the cushioning member 60 can be stably positioned between the back support 51 and the reclining member 56 in a state where the back support 51 is maintained at various tilt angles. .. This makes it possible to effectively absorb the vibration and impact transmitted from the reclining member 56 to the back support 51 regardless of the inclination angle of the back support 51.

That is, in the illustrated example, the portion of the cushioning member 60 having the longitudinal direction located between the reclining member 56 and the back support 51 changes according to the inclination angle of the back support 51. It has become. According to this embodiment, the portion of the cushioning member 60 that becomes compressed between the reclining member 56 and the back support 51 is variable and not constant. As a result, it is possible to effectively prevent the cushioning member 60 from being locally subjected to an external force and locally losing the elasticity of the cushioning member 60. Therefore, the cushioning member 60 functions effectively for a long period of time, and can effectively absorb the vibration and impact transmitted from the reclining member 56 to the back support 51.

Here, FIG. 8A is a plan view showing the back support 51 in a state where the back support 51 shown in FIGS. 3A and the like is tilted to the back side as much as possible. On the other hand, FIG. 8B is a plan view showing the back support 51 in a state where the back support 51 shown in FIG. 3B stands up to the maximum. The distance from the swing center of the back support 51 to the end opening 35a is longer than the distance from the swing center of the back support 51 to the connection point between the reclining member 56 and the main body frame 12. In the example, the position between the reclining member 56 and the back support 51 in the cushioning member 60 as the back support 51 swings from the state shown in FIG. 8B to the state shown in FIG. 8A. The portion to be moved moves from one side (lower side) to the other side (upper side) in the longitudinal direction of the cushioning member 60. According to this specific example, the cushioning member 60 can be effectively functioned for a long period of time while smoothing the reclining operation of the back support 51.

In one embodiment described above, the baby carriage 10 is connected to the main body frame 12, the seat support unit 50 having the back support 51 swingable with respect to the main body frame 12, and the back support by connecting to the main body frame 12. It has a reclining member 56 that supports the body 51 from the back surface side. When vibration or impact is applied to the baby carriage 10 due to unevenness of the traveling surface or the like, the vibration or impact is not only the connection point of the back support 51 to the seat support 52 or the main body frame 12, but also reclining. It is also transmitted from the member 56 to the back support 51. Then, depending on the inclination angle of the back support 51, a large force pushing the back support 51 toward the living space side of the infant can be transmitted from the reclining member 56. In the present embodiment, a cushioning member 60 is provided between the back support 51 and the reclining member 56. The cushioning member 60 can effectively absorb the vibration and impact transmitted from the reclining member 56 to the back support 51. As a result, the comfort of the baby carriage 10 can be effectively improved, and the riding comfort and comfort felt by the baby can be improved.

In one specific example of the above-described embodiment, the cushioning member 60 is held by the back support 51. According to this specific example, the cushioning member 60 can be stably held between the back support 51 and the reclining member 56. Thereby, the comfortability of the baby carriage 10 can be stably improved.

In one specific example of the above-described embodiment, the back support 51 has a base frame 31 and a base cloth material 34 held by the base frame 31. The cushioning member 60 is arranged on the base frame 31. According to this specific example, the cushioning member 60 is located on the transmission path of vibration or impact from the reclining member 56 to the back support 51. Thereby, the comfortability of the baby carriage 10 can be stably improved.

In one specific example of the above-described embodiment, the cushioning member 60 is held by the base cloth material 34. In this specific example, for example, by sewing the bag body 61 containing the cushioning member 60 to the base cloth material 34, or by inserting the cushioning member 60 into the storage pocket formed in the base cloth material 34. The cushioning member 60 can be held by the base cloth material 34. That is, the cushioning member 60 can be stably held by the base cloth material 34 by a simple method.

In one specific example of the above-described embodiment, the seat support unit 50 has a pair of side frame portions 31a and a connecting frame portion 31b for connecting the tips of the pair of side frame portions 31a. The base cloth material 34 is attached to the pair of side frame portions 31a and the connecting frame portion 31b in a stretched state. The cushioning member 60 is arranged on the back surface side of each side frame portion 31a. According to this specific example, the miniaturized cushioning member 60 can efficiently absorb the vibration and impact from the reclining member 56 to the back support 51.

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

Hereinafter, an example of the modification will be described. In the following description, the same reference numerals as those used for the corresponding portions in the above-mentioned specific examples will be used for the portions that can be configured in the same manner as the above-mentioned specific examples, and duplicate description will be omitted.

For example, in the above-mentioned specific example, an example in which the cushioning member 60 is supported by the base cloth material 34 is shown, but the present invention is not limited to this example. The cushioning member 60 may be supported by the base frame 31. For example, the cushioning member 60 may be directly held by the side frame portion 31a by being joined by using an adhesive or the like. In this example, the cushioning member 60 may be covered with the base cloth material 34.

Further, in the above-mentioned specific example, an example in which the back support 51 has a base frame 31 and a base cloth material 34 is shown, but the present invention is not limited to this example. The back support 51 may be configured as a plate-shaped member. In this example, the cushioning member 60 may be held by a plate-shaped back support 51, for example, by being joined by using an adhesive.

Further, in the above-mentioned specific example, an example in which the cushioning member 60 is held by the back support 51 is shown, but the present invention is not limited to this example. The cushioning member 60 may be held by the reclining member 56 or the tubular cover 58. Further, the tubular cover 58 may be configured as a member that can be elastically compressed and deformed, for example, a thick rubber tube.

10 Stroller 11 Stroller body 12 Body frame 14 Front legs 15 Front connecting material 16 Rear legs 17 Rear connecting material 18 Wheels 21 Armrest 22 Main link material 23 Top connecting material 24 Frame material 24a Side 24b Connecting part 25 Front connecting material 26 Rear connecting material 27 Central connecting material 28 Main shaft material 29 End member 30 Shaft member 31 Base frame 31a Side frame part 31b Connecting frame part 32 Upper frame 33 Connecting frame 34 Base cloth material 35 Cover member 35a End opening 35b Central opening 36 First position holding Member 37 Second position holding member 38 Guard member 40 Handle 41 Handle body 41a Shaft 41b Intermediate 43 Remote control device 42 Holding 50 Seat support unit 51 Back support 52 Seat support 55 Reclining mechanism 56 Reclining member 56a End member 57 Fixture 58 Cylindrical cover 60 Cushioning member 61 Bag body 70 Seat material L1 1st link L2 2nd link L3 3rd link L4 4th link

Claims (8)

With the main body frame
A seat support unit having a back support that can swing with respect to the main body frame, and
A reclining member that is connected to the main body frame and supports the back support from the back side.
A baby carriage comprising a cushioning member provided between the back support and the reclining member. The baby carriage according to claim 1, wherein the cushioning member is held by the back support. The back support has a base frame and a base cloth material held by the base frame.
The baby carriage according to claim 2, wherein the shock absorber is arranged on the base frame. The baby carriage according to claim 3, wherein the cushioning member is held by the base cloth material. The base frame has a pair of side frame portions and a connecting frame portion that connects the tips of the pair of side frame portions.
The base cloth material is attached to the pair of side frame portions and the connecting frame portion in a stretched state.
The baby carriage according to claim 3 or 4, wherein the shock absorber is arranged on the back surface side of each side frame portion. The baby carriage according to claim 5, wherein each cushioning member extends along the side frame portion. The baby carriage according to any one of claims 1 to 6, wherein the portion of the cushioning member located between the reclining member and the back support changes according to the inclination angle of the back support. The cushioning member has a longitudinal direction and has a longitudinal direction.
As the back support swings from an upright state to an inclined state, the portion of the cushioning member located between the reclining member and the back support is from one side in the longitudinal direction. The baby carriage according to claim 7, which changes to the other side.

Images