Baby carriage

Abstract

The invention provides a baby carriage (10). The baby carriage (10) is provided with a baby carriage main body (11). The stroller body (11) includes a body frame (12), a handle (30), and a seat support unit (40). The handle (30) is attached to the main body frame (12) so as to be swingable in the front-rear direction. The seat support unit (40) includes a seat support body (41) supported by the handle (30). The position of the seat supporting body (41) in the main body frame (12) in the front-back direction changes according to the swinging of the handle (30).

Description

Technical Field

[0001] The invention relates to a baby carriage. Background Art

[0002] Baby strollers used when taking infants out are becoming increasingly popular. The baby stroller includes a seat support unit that supports a seat for the infant to sit on, a main frame that supports the seat support unit, and a handle mounted on the main frame. The operator of the baby stroller (guardian, etc.) can adjust the travel direction of the baby stroller by operating the handle, and can also change the inclination of the baby stroller in order to go over steps. Patent document 1 discloses a baby stroller in which the position of the handle can be switched between a back-pushing position and a face-to-face pushing position.

[0003] Prior art literature Patent Literature Patent Document 1: Japanese Patent Application Publication No. 2018-202982 Summary of the invention

[0004] Technical issues In a baby stroller in which the position of the handle can be switched between a rear push position and a face-to-face push position, the distance between the grip of the handle and the center of gravity of the baby in the baby stroller is usually different when the handle is placed in the rear push position and when the handle is placed in the face-to-face push position. Therefore, the operability of the baby stroller is different when the handle is placed in the rear push position and when the handle is placed in the face-to-face push position, and it is sometimes difficult to operate the baby stroller in the other case.

[0005] Technical Solution The present invention has been made in view of the above-mentioned points, and an object of the present invention is to suppress a change in operability of a baby stroller when the position of a handle is switched.

[0006] One embodiment of the present invention relates to the following [1] to

[17] . [1] A baby stroller, comprising a baby stroller body, The baby carriage body comprises: Main frame; a handle mounted on the main frame in a manner that allows it to swing in a front-rear direction; and Seat support unit, The seat support unit includes a seat support body supported by the handle. The position of the seat support body in the main body frame in the front-rear direction changes according to the swing of the handle. [2] The baby stroller according to [1], further comprising a restriction unit that restricts movement of the seat support body in a front-rear direction relative to the main body frame. [3] The baby stroller according to [1] or [2], wherein the seat support body is rotatable relative to the handle. [4] The baby stroller according to [3], further comprising a restriction unit that restricts rotation of the seat support body relative to the handle. [5] The baby stroller according to any one of [1] to [4], wherein the seat support and the handle are connected via a support link member. [6] The baby stroller according to [5], further comprising a restriction unit that restricts rotation of the support link member relative to the seat support body and / or the handle. [7] The baby stroller according to [5] or [6], wherein the support link component includes a plurality of link members that are rotatable relative to each other. [8] The baby stroller according to any one of [1] to [7], wherein: The seat support unit includes a back support body, The back support is movable with the seat support. [9] The baby stroller according to [8], wherein the back support body is supported by the handle.

[10] The stroller according to [8] or [9], wherein the back support is rotatable relative to the handle.

[11] The baby stroller according to any one of [8] to

[10] , wherein the seat support and the handle, and the back support and the handle are connected via a support link member.

[12] The baby stroller according to any one of [1] to

[11] , wherein: The seat support unit includes a canopy support body, The canopy support is movable together with the seat support.

[13] The baby stroller according to any one of [1] to

[12] , wherein: The seat support unit includes a protective member, The guard is movable together with the seat support.

[14] The baby stroller according to any one of [1] to

[13] , wherein: The handle can swing in the front-to-back direction between a back-pushing position and a face-to-face pushing position. When the handle is located at the rear push position, the seat support body is located at a first position, and when the handle is located at the face-to-face push position, the seat support body is located at a second position further forward than the first position.

[15] The baby stroller according to

[14] , wherein: The main frame includes front legs and rear legs, The seat support unit includes a back support body connected to the seat support body, When viewed from the side, when the seat support is in the first position, the connection between the seat support and the back support is located behind the rear legs, and when the seat support is in the second position, the connection between the seat support and the back support is located in front of the rear legs.

[16] The baby stroller according to

[15] , wherein: The main framework includes: A front wheel holding component connected to the front legs; a front wheel held by the front wheel holding member so as to be rotatable about a front wheel rotation axis extending in the horizontal direction; a rear wheel holding member connected to the rear legs; and a rear wheel held by the rear wheel holding member so as to be rotatable about a rear wheel rotation axis extending in the horizontal direction, When viewed from the side, the position of the connection portion of the seat support body and the back support body in the front-to-back direction when the seat support body is configured to the second position is located more forward of the connection portion of the rear legs and the rear wheel holding component by more than one quarter of the distance in the front-to-back direction between the connection portion of the front legs and the front wheel holding component and the connection portion of the rear legs and the rear wheel holding component.

[17] The stroller according to

[15] or

[16] , wherein: The main framework includes: a front wheel holding member connected to the front legs; and a front wheel held by the front wheel holding member so as to be rotatable about a front wheel rotation axis extending in the horizontal direction, The front wheel holding member can rotate around the front wheel rotation axis extending in the vertical direction. A distance between the first position and the second position in the front-rear direction is at least twice a distance between the front wheel turning axis and the front wheel turning axis in a plane perpendicular to the front wheel turning axis in the horizontal direction.

[0024] Technical Effects According to the present invention, it is possible to suppress a change in operability of the baby stroller when the position of the handle is switched. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a diagram for explaining one embodiment of the present invention, and is a side view of a baby stroller in which the handle is arranged in a rear push position.

[0026] Figure 2 is with Figure 1 The corresponding figure is a side view of the stroller with the handles configured in the face-to-face pushing position.

[0027] Figure 3 is a side view showing the stroller after folding.

[0028] Figure 4 It is a three-dimensional diagram of the main frame and handle.

[0029] Figure 5 It is a perspective view of the seat support unit.

[0030] Figure 6 This is a front view of the seat support unit, handle, and support link component.

[0031] Figure 7 This is a diagram for explaining a modified example of a baby stroller, and is a side view of a baby stroller in which the handle is arranged in a rear push position.

[0032] Figure 8 is with Figure 7 The corresponding figure is a side view of the stroller with the handles configured in the face-to-face pushing position.

[0033] Explanation of symbols 10: Baby stroller 11: Baby stroller body 12: Main frame 14: Front legs 16: Hind legs 18: Front wheel 18b: Front wheel rotation axis 18c: Front wheel swivel axle 19: Rear wheel 19b: Rear wheel rotation axis 19c: Rear wheel swivel axle 20: Shaft components 30: Handle 32: Handle extension 40: Seat support unit 41: Seat support 45: Back support 60: Support connecting rod parts 61: Connecting rod 62: First restriction unit 63: Second Restriction Unit 64: Third Restriction Unit 65: First connecting rod member 66: Second connecting rod member 67: Third connecting rod member L1: First connecting rod component L2: Second connecting rod component L3: The third link component L4: Fourth connecting rod component DETAILED DESCRIPTION

[0034] Hereinafter, one embodiment of the present invention will be described with reference to a specific example shown in the drawings.

[0035] Figures 1 to 6 It is a figure for demonstrating one Embodiment of the baby carriage 10 of this invention. Figures 1 to 3 is a side view of the stroller 10 . Figure 1 and Figure 2 The stroller 10 is shown in an unfolded state. Figure 3 The stroller 10 is shown in a folded position.

[0036] The stroller 10 of the present embodiment includes a stroller body 11. The stroller body 11 includes a main body frame 12 having front legs 14 and rear legs 16, a handle 30 attached to the main body frame 12, and a seat support unit 40. Figure 4 It is a perspective view showing the main body frame 12 and the handle 30 together. Figure 5 It is a perspective view showing the seat support unit 40 . Figure 6 2 is a front view showing the seat support unit 40 and the handle 30 together. Figures 4 to 6 It can be understood that the illustrated stroller body 11 has a generally symmetrical structure centered around a surface along the front-rear direction and the up-down direction.

[0037] The handle 30 can be swung in the front-rear direction relative to the main frame 12. The handle 30 can be positioned Figure 1 The rear push position shown is the same as Figure 2When the handle 30 is arranged in the rear push position, the operator (guardian) holds the handle 30 from the rear side of the infant to operate the stroller 10. At this time, the front leg 14 side of the stroller 10 is the front in the travel direction. When the handle 30 is arranged in the rear push position, the operator holds the handle 30 from the side facing the infant to operate the stroller 10. At this time, the rear leg 16 side of the stroller 10 is the front in the travel direction.

[0038] The seat support unit 40 supports a cushion cushion on which an infant sitting in the baby carriage 10 sits. The seat support unit 40 includes a seat support body 41 that supports the buttocks of an infant sitting in the baby carriage body 11 from below.

[0039] In the baby carriage 10 of the present embodiment, a study was conducted to suppress the change in operability of the baby carriage 10 when the position of the handle 30 is switched. Specifically, the position of the seat support 41 in the main frame 12 in the front-to-back direction changes according to the swing of the handle 30. Thus, by switching the handle 30, the front-to-back distance between the grip portion of the handle 30 (the middle portion 33 described later) and the center of gravity of the infant on the seat support 41 is suppressed from changing, thereby suppressing the operability of the baby carriage 10 from changing.

[0040] In addition, in this specification, unless otherwise specified, the terms "front", "rear", "up", "down", "front-rear direction", and "up-down direction" with respect to the stroller and its components refer to the "front", "rear", "up", "down", "front-rear direction", and "up-down direction" based on the infant or young child riding in the stroller in the unfolded state and its components. More specifically, the "front-rear direction" is equivalent to Figure 1 and Figure 2 Unless otherwise specified, "front" means the side that the infant is facing. Figure 1 and Figure 2 The left side of the paper in the figure is the front side. On the other hand, the "up and down direction" refers to the direction perpendicular to the running surface S of the baby carriage. Therefore, when the running surface S is a horizontal plane, the "up and down direction" refers to the vertical direction. In addition, the "lateral direction" refers to the width direction, which is a direction perpendicular to both the "front and rear direction" and the "up and down direction". In addition, the "back side" refers to the side opposite to the side facing the infant riding in the baby carriage 10. Therefore, the "back side" is usually the back side.

[0041] In the present specification, the widthwise inner side refers to a side closer to the center of the stroller body 11 in the widthwise direction. On the other hand, the widthwise outer side refers to a side farther from the center of the stroller body 11 in the widthwise direction.

[0042] exist Figures 1 to 6 In the specific example shown, the stroller body 11 further includes a support link member 60. The support link member 60 moves the seat support body 41 of the seat support unit 40 in conjunction with the handle 30. Figures 1 to 6 In the specific example shown, the stroller body 11 is foldable. Hereinafter, each element constituting the stroller body 11 will be described in further detail.

[0043] (Main frame) like Figure 4 As shown, the main frame 12 has a pair of front legs 14 respectively arranged on the left and right, and a pair of rear legs 16 respectively arranged on the left and right. The main frame 12 also has a group of first link components L1, second link components L2, third link components L3 and fourth link components L4 respectively arranged on the left and right. The front legs 14, the rear legs 16 and the first link components L1 to the fourth link components L4 function as link components that make the main frame 12 foldable and unfoldable. In the example shown in the figure, the first link component L1 also functions as an armrest. That is, the first link component L1 is composed of an armrest.

[0044] A front wheel 18 and a rear wheel 19 are rotatably provided at the lower end of the front leg 14 and the lower end of the rear leg 16, respectively. The front wheel 18 and the rear wheel 19 are held by a front wheel holding member 18a connected to the lower end of the front wheel 18 and a rear wheel holding member 19a connected to the lower end of the rear wheel 19, respectively. The front wheel holding member 18a and the front wheel 18 constitute a caster, and can rotate around a front wheel rotation axis 18b extending in the horizontal direction, and can rotate around a front wheel rotation axis 18c extending in the vertical direction. In addition, the rear wheel holding member 19a and the rear wheel 19 also constitute a caster, and can rotate around a rear wheel rotation axis 19b extending in the horizontal direction, and can rotate around a rear wheel rotation axis 19c extending in the vertical direction.

[0045] like Figure 1 As shown in FIG. 1 , the upper end portion of the front leg 14 is connected to the front portion of the first link member L1 disposed on the corresponding side (left or right) in a rotatable (swingable) manner. The upper end portion of the rear leg 16 is connected to the front portion of the first link member L1 disposed on the corresponding side (left or right) in a rotatable (swingable) manner. Figure 2 As shown, the upper portion of the second link member L2 is rotatably (swingably) connected to the rear portion of the first link member L1 disposed on the corresponding side (left or right). The second link member L2 is supported by the rear legs 16 when the main frame 12 is deployed.

[0046] like Figure 4As shown, the third link component L3 is arranged between the front leg 14 and the second link component L2. The third link component L3 is connected to the middle part of the front leg 14 at its front part. The third link component L3 can rotate relative to the front leg 14 around the rotation axis extending in the width direction. In addition, the third link component L3 is connected to the lower part of the second link component L2 at its rear part. The third link component L3 can rotate relative to the second link component L2 around the rotation axis extending in the width direction.

[0047] like Figure 4 As shown, the third link member L3 is connected to the second link member L2 via the shaft member 20 extending in the width direction. In addition, the third link member L3 is connected to the front leg 14 via a shaft member (not shown) extending in the width direction. Therefore, the pair of third link members L3 rotate synchronously with each other relative to the front leg 14 and the second link member L2.

[0048] like Figure 4 As shown, the fourth link component L4 is connected to the rear leg 16 in a rotatable manner. The fourth link component L4 is connected to the middle part of the rear leg 16 in a rotatable manner at its lower part. The fourth link component L4 is rotatably connected to the second link component L2, and the fourth link component L4 is rotatably connected to the third link component L3. In the example shown in the figure, the second link component L2, the third link component L3 and the fourth link component L4 are rotatably connected to each other using the same shaft component 20. The shaft component 20 passes through the second link component L2, the fourth link component L4 and the third link component L3. According to this structure, the second link component L2, the third link component L3 and the fourth link component L4 can rotate with each other around an axis that coincides with the central axis of the shaft component 20.

[0049] In addition, if Figure 4 As shown, the main frame 12 has a front connecting member 15 connecting a pair of front legs 14 and a rear connecting member 17 connecting a pair of rear legs 16 as components extending in the lateral direction. The front connecting member 15 functions as a footrest. In addition, a central connecting member 21 is provided between a pair of third link members L3. The front connecting member 15, the rear connecting member 17 and the central connecting member 21 can suppress the lateral deformation of the baby carriage 10.

[0050] (handle) As described above, the handle 30 can swing forward and backward relative to the main frame 12. The handle 30 can be pushed in the rear position (refer to Figure 1 ) and face-to-face push position (reference Figure 2). In the illustrated example, the handle 30 is tilted relative to the vertical direction and extends in the rearward direction in the back push position. The handle 30 is tilted relative to the vertical direction and extends in the forward direction in the face-to-face push position.

[0051] In the example shown in the drawings, the handle 30 includes a handle body 31 swingably mounted on the main body frame 12 , and a holding body 35 provided on the handle body 31 .

[0052] like Figure 4 As shown, the handle body 31 has a generally U-shaped shape. The handle body 31 is connected to the main frame 12 at both ends of the U-shape in a rotatable (swingable) manner. The handle body 31 includes a pair of handle extensions 32 extending approximately parallel to each other, and an intermediate portion 33 connecting the pair of handle extensions 32. The pair of handle extensions 32 are arranged on the outer sides in the width direction of the main frame 12. Each handle extension 32 is rotatably connected to the main frame 12 at its lower end. The intermediate portion 33 is a gripping portion for the operator (guardian) to hold.

[0053] In the example shown in the figure, the handle body 31 is connected to the main frame 12 in a rotatable manner using the shaft member 20. That is, the second link member L2, the third link member L3, the fourth link member L4 and the handle 30 can rotate relative to each other around the same axis divided by the shaft member 20. Figure 2 ) is engaged, so that the handle 30 can be kept Figure 1 The back push position shown. Since the holding body 35 provided on the handle 30 and the second holding member 37 (refer to Figure 1 ) is engaged, so that the handle 30 can be kept Figure 2 Face-to-face push position shown.

[0054] The handle 30 supports the seat support body 41 of the seat support unit 40. Thus, the position of the seat support body 41 in the front-rear direction in the main frame 12 can be changed according to the swing of the handle 30. In the example shown in the figure, the handle 30 supports the seat support body 41 via the support link member 60. Figure 4 and Figure 5 In FIG. 5 , a portion of the support link member 60 is shown by a dotted line. The seat support unit 40 and the support link member 60 will be described in detail later.

[0055] The stroller body 11 having the above structure can be folded by relatively rotating the components. Specifically, the second link member L2 is temporarily lifted upward and backward using the handle 30 disposed at the rear push position, and then pressed downward, so that the fourth link member L4 is relatively close to the rear leg 16. Figure 1 With this operation, the first link member L1 and the third link member L3 are rotated in the clockwise direction relative to the second link member L2. Figure 1 By such operation, the second link member L2 and the front leg 14 approach each other while maintaining a substantially parallel configuration when viewed from the side, and the position of the handle 30 relative to the main frame 12 is lowered. Figure 3 As shown, the stroller body 11 can be folded. Figure 3 In the folded state, the dimensions of the stroller 10 in the front-rear direction and the up-down direction can be made compact. On the other hand, in order to unfold the stroller body 11 from the folded state, it is only necessary to perform the steps in the reverse direction of the above-mentioned folding operation.

[0056] It should be noted that the stroller body 11 has a state-holding mechanism (not shown) that restricts the relative rotation of the two components. By operating the state-holding mechanism, the stroller body 11 can be folded. In the example shown in the figure, the handle 30 has a remote control device 38 connected to the state-holding mechanism. Figure 1 As shown, the remote control device 38 is provided in the middle portion 33 of the handle body 31. By operating the remote control device 38, the state holding mechanism is actuated, and the stroller body 11 can be folded.

[0057] (Seat support unit) The seat support unit 40 supports a cushion (not shown) for the infant to sit on. Figure 5 As shown, the seat support unit 40 includes a seat support body 41 and a back support body 45. The seat support body 41 is opposite to the buttocks of the infant sitting in the baby carriage 10. The back support body 45 is opposite to the back of the infant. Figure 6 As shown, the seat support unit 40 is arranged inside the width direction of the handle 30. In addition, the seat support unit 40 is arranged inside the width direction of the main frame 12. More specifically, the seat support unit 40 is arranged between the left and right front legs 14 and between the left and right rear legs 16.

[0058] like Figure 5As shown, the seat support body 41 has a front frame member 42. The front frame member 42 is a frame member formed in a roughly U-shape. The front frame member 42 has a pair of side portions 43 extending in the front-to-back direction, and a front end portion 44 extending in the width direction and connecting the front ends of the pair of side portions 43. The seat support body 41 is stretched and mounted on the front frame member 42, and includes a cloth (not shown) that divides the seat surface. Alternatively, the seat support body 41 is supported from below by the front frame member 42, and includes a seat plate (not shown) that divides the seat surface. The seat plate is a plate-shaped member formed using resin or metal. It should be noted that when the seat support body 41 includes a seat plate, the seat support body 41 may not include the front frame member 42.

[0059] The back support body 45 has a rear frame member 46. The rear frame member 46 is a frame member formed in a substantially U-shape. The rear frame member 46 has a pair of side portions 47 extending in the front-rear direction and / or the up-down direction, and a rear end portion 48 extending in the width direction and connecting the rear ends of the pair of side portions 47. In the illustrated example, the back support body 45 is connected to the seat support body 41. More specifically, the rear frame member 46 extends upward or backward from the rear end of the front frame member 42. The back support body 45 can rotate relative to the seat support body 41 around a rotation axis X40 extending in the width direction. More specifically, the front end of the rear frame member 46 is connected to the rear end of the front frame member 42 in a manner that can rotate around the rotation axis X40 extending in the width direction. Since the back support body 45 rotates relative to the seat support body 41, the back support body 45 can be reclined relative to the seat support body 41. The back support body 45 may further include a cloth-like member or a plate-like member supported by the rear frame member 46 .

[0060] The angle of the back support body 45 relative to the seat support body 41 can be adjusted by a tilt angle adjustment member (not shown). The tilt angle adjustment member can be, for example, a belt member connected to the main frame 12 at both ends. In this case, the two ends of the belt member can be connected to, for example, the left and right first link members L1. In addition, in this case, the back support body 45 can be supported from the back or below by the middle part of the belt member. In addition, in this case, by adjusting the length of the belt member, the angle of the back support body 45 relative to the seat support body 41 can be adjusted.

[0061] The angles of the seat support 41 and the back support 45 relative to the second link member L2 may be adjustable. Figure 3As shown, when the baby carriage 10 in the folded state is viewed from the side, the seat support 41 and the back support 45 can be suppressed from protruding in the front-rear direction from the main frame 12, and the front-rear dimension of the baby carriage 10 in the folded state can be reduced. For example, after the main frame 12 is folded, the seat support 41 and the back support 45 can be constrained to the main frame 12 using a rope or the like, thereby adjusting the angle of the seat support 41 and the back support 45 relative to the second link member L2.

[0062] exist Figure 5 In the example shown, the seat support unit 40 further includes a pair of side support portions 50 extending in the vertical direction and a side frame member 51. The side support portions 50 are located above the side portions 47 of the back support body 45. In the example shown, the lower end portions of the side support portions 50 are fixed to the seat support body 41.

[0063] The side frame member 51 is a frame member formed in a substantially U-shape. The side frame member 51 is connected to the upper end of the side support portion 50 at both ends of the U. The side frame member 51 is connected to the side support portion 50 so as to be rotatable around a rotation axis parallel to the width direction.

[0064] A pair of connecting frame members 52 is provided between the side frame member 51 and the rear frame member 46. The pair of connecting frame members 52 are arranged to be separated from each other in the width direction. The connecting frame member 52 can rotate relative to the rear frame member 46 and the side frame member 51. The connecting frame member 52 functions as a link member, and swings the other one along with the swing of one of the rear frame member 46 and the side frame member 51. In addition, the connecting frame member 52 forms a wall portion located behind the head of the infant when the back support body 45 is lying down, and forms a wall portion located behind the head of the infant when the back support body 45 is standing up.

[0065] In addition, the seat support unit 40 has a pair of protective support bodies 54 connected to the left and right side portions of the seat support body 41, and a protective member 55 extending between the pair of protective support bodies 54. The left and right ends of the protective member 55 are respectively connected to the left and right protective support bodies 54 in a detachable manner. In addition, the seat support unit 40 has a canopy support body 57 that supports a canopy cloth (not shown). The canopy support body 57 includes a pair of canopy support members 58 respectively fixed to the two ends of the side frame member 51, and a canopy frame 59 extending between the pair of canopy support members 58. A canopy cloth is installed on the canopy frame 59 to form a canopy. The canopy covers the infant sitting on the seat support unit 40 from above, providing a sunshade environment for the infant.

[0066] (Supporting connecting rod parts) The handle 30 supports the seat support 41 via the support link member 60. Since the seat support 41 is supported by the handle 30, the seat support 41 moves in conjunction with the swing of the handle 30. More specifically, by comparing Figure 1 and Figure 2 It can be understood that the position of the seat support body 41 in the front-rear direction in the main frame 12 changes with the swing of the handle 30 by the support link member 60. In the example shown in the figure, the seat support body 41 is connected to the main frame 12 via the support link member 60 and the handle 30. The seat support body 41 is not supported by the main frame 12.

[0067] exist Figure 6 In the example shown, the stroller body 11 includes a pair of support link members 60. The pair of support link members 60 are arranged on the outer side in the width direction of the seat support body 41 and on the inner side in the width direction of the handle 30. In the example shown in the figure, each support link member 60 is arranged on the outer side in the width direction of the seat support body 41 and on the inner side in the width direction of the main frame 12. Each support link member 60 is connected to the side portion 43 of the seat support body 41 and the handle extension 32 located on the corresponding side.

[0068] In the example shown in the figure, each supporting link component 60 includes a single link member 61. The link member 61 extends in the up-down direction as a whole. The link member 61 is connected to the middle part of the handle extension 32 at its upper part. The link member 61 can rotate relative to the handle extension 32 around the rotation axis X61a extending in the width direction. In addition, the link member 61 is connected to the side portion 43 of the seat support body 41 at its lower part. The link member 61 can rotate relative to the seat support body 41 around the rotation axis X61b extending in the width direction. In the example shown in the figure, the rotation axis X61b is consistent with the rotation axis X40, but is not limited to this. The rotation axis X61b can be located at a position further forward than the rotation axis X40, or at a position further rearward than the rotation axis X40.

[0069] In this way, since the link member 61 can rotate relative to the handle 30, the position of the seat support body 41 in the front-to-back direction in the main frame 12 can be adjusted. In more detail, by rotating the link member 61 relative to the handle 30, the movement amount of the seat support body 41 in the front-to-back direction can be adjusted to be larger or smaller than the movement amount in the front-to-back direction of the connection position between the handle 30 and the supporting link member 60 (the position through which the rotation axis X61a passes). As a result, the degree of freedom in the configuration of the seat support body 41 in the front-to-back direction when the handle 30 is configured in the back push position and when the handle 30 is configured in the face-to-face push position is increased. In other words, when the handle 30 is configured in the back push position and when the handle 30 is configured in the face-to-face push position, the position of the seat support body 41 can be fine-tuned as needed. Therefore, when the handle 30 is configured in the back push position, it is easy to position the seat support body 41 to Figure 1 In addition, when the handle 30 is arranged in the face-to-face pushing position, it is easy to position the seat support body 41 to Figure 2 The second position shown. It should be noted that Figure 1 In FIG. 4 , the seat support body 41 located at the second position is indicated by a dotted line. Figure 1 It is easy to understand that the second position is located further forward than the first position.

[0070] In addition, since the link member 61 can rotate relative to the handle 30 and / or the seat support 41, the seat support 41 can rotate relative to the handle 30. As a result, it is possible to suppress the change in the angle of the seat support 41 relative to the walking surface S caused by swinging the handle 30. Therefore, whether the handle 30 is arranged in the back push position or the face-to-face push position, the seat support 41 can be made substantially horizontal, and the infant on the seat support 41 can be properly supported.

[0071] In the illustrated example, the stroller body 11 includes a first limiting unit 62 that limits the movement of the seat support 41 in the front-rear direction relative to the main frame 12. The first limiting unit 62 can limit the rotation of the link member 61 relative to the handle 30. In this case, the first limiting unit 62 can be a locking mechanism that prevents the link member 61 from rotating relative to the handle 30. With such a first limiting unit 62, when the handle 30 is arranged in the back push position, the seat support 41 can be stably maintained in the first position (see FIG. 1 ). Figure 1 In addition, by using such a first limiting unit 62, when the handle 30 is arranged in the face-to-face pushing position, the seat support body 41 can be stably maintained at a second position further forward than the first position (see Figure 2 ).

[0072] In the example shown in the figure, the stroller body 11 has a second limiting unit 63 that limits the rotation of the link member 61 relative to the seat support body 41. The second limiting unit 63 may be a locking mechanism that prevents the link member 61 from rotating relative to the seat support body 41. The second limiting unit 63 can stably maintain the angle of the seat support body 41 relative to the link member 61 at a desired angle. Therefore, the second limiting unit 63 can stably maintain the angle of the seat support body 41 relative to the walking surface S at a desired angle.

[0073] In this way, by limiting the rotation of the seat support body 41 relative to the handle 30 using the first limiting unit 62 and / or the second limiting unit 63, the seat support body 41 can be made substantially parallel to the walking surface S, regardless of whether the handle 30 is arranged in the back push position or the face-to-face push position. Therefore, regardless of whether the handle 30 is arranged in the back push position or the face-to-face push position, the infant on the seat support body 41 can be properly supported.

[0074] In such a stroller body 11, the functions of the supporting link member 60 and the limiting units 62 and 63 when the position of the handle 30 is switched will be described. First, the case where the handle 30 is moved from the back push position to the face-to-face push position will be described. If the handle 30 is swung from the back push position to the face-to-face push position, the link member 61 moves forward together with the handle 30. In addition, due to the action of gravity, the link member 61 rotates relative to the handle 30 as the handle 30 swings. As a result, the seat support body 41 automatically moves forward as the handle 30 swings. After the handle 30 is arranged in the face-to-face push position, the link member 61 is rotated relative to the handle 30 as needed to adjust the position of the seat support body 41 to the second position. Thereafter, the first limiting unit 62 limits the rotation of the link member 61 relative to the handle 30 to keep the seat support body 41 in the second position. In addition, as needed, the seat support body 41 is rotated relative to the link member 61 to make the seat support body 41 substantially parallel to the walking surface S. Thereafter, the second restriction means 63 restricts the rotation of the seat support body 41 relative to the link member 61 , and the seat support body 41 is held substantially parallel to the traveling surface S. As shown in FIG.

[0075] Next, the case where the handle 30 is moved from the face-to-face push position to the back push position is described. If the handle 30 is swung from the face-to-face push position to the back push position, the link member 61 moves backward together with the handle 30. In addition, due to the action of gravity, the link member 61 rotates relative to the handle 30 as the handle 30 swings. As a result, the seat support body 41 automatically moves backward as the handle 30 swings. After the handle 30 is arranged in the face-to-face push position, the link member 61 is rotated relative to the handle 30 as needed to adjust the position of the seat support body 41 to the first position. Thereafter, the first limiting unit 62 is used to limit the rotation of the link member 61 relative to the handle 30, and the seat support body 41 is maintained in the first position. In addition, as needed, the seat support body 41 is rotated relative to the link member 61 so that the seat support body 41 is roughly parallel to the walking surface S. Thereafter, the second limiting unit 63 is used to limit the rotation of the seat support body 41 relative to the link member 61, and the seat support body 41 is maintained roughly parallel to the walking surface S.

[0076] In this way, since the position of the seat support body 41 in the main frame 12 in the front-to-back direction changes according to the swinging of the handle 30, the position of the center of gravity of the infant supported by the seat support body 41 in the front-to-back direction also changes. Therefore, the change in the distance in the front-to-back direction between the grip portion (middle portion 33) of the handle 30 and the center of gravity of the infant when the position of the handle 30 is switched is suppressed, and the change in the operability of the stroller 10 is suppressed.

[0077] As described above, in the example shown in the figure, the back support body 45, the guard 55, and the canopy support body 57 are connected to the seat support body 41. Therefore, if the handle 30 is swung in the front-to-back direction, the position of the back support body 45, the guard 55, and the canopy support body 57 relative to the main frame 12 in the front-to-back direction automatically changes. In other words, if the handle 30 is swung forward, the back support body 45, the guard 55, and the canopy support body 57 move forward together with the seat support body 41. In addition, if the handle 30 is swung backward, the back support body 45, the guard 55, and the canopy support body 57 move backward together with the seat support body 41. Therefore, even if the position of the seat support body 41 in the front-to-back direction relative to the main frame 12 changes, the positional relationship between the seat support body 41 and the back support body 45, the guard 55, and the canopy support body 57 can be maintained. Therefore, the size of the living space of the seat support unit 40 does not change due to the movement of the seat support 41 relative to the main frame 12, nor does the position of the guard 55 and the canopy relative to the infant on the seat support 41 change. Therefore, the change in the riding comfort of the baby stroller is suppressed before and after the position of the seat support 41 in the front-to-back direction is changed. In addition, even if the position of the seat support 41 in the front-to-back direction is changed, a sunshade environment can be appropriately provided. In addition, since the positions of the back support 45, the guard 55, and the canopy support 57 in the main frame 12 in the front-to-back direction change according to the swing of the handle 30, the change in the distance in the front-to-back direction between the grip portion (middle portion 33) of the handle 30 and the center of gravity of the seat support unit 40 when the position of the handle 30 is switched is suppressed, and the change in the operability of the baby stroller 10 is more effectively suppressed.

[0078] The first position, the second position, and the distance D1 between the first position and the second position in the front-rear direction (refer to Figure 1 ) For example, the first position, the second position and the distance D1 can be adjusted by adjusting the angle between the handle 30 and the link member 61 when the handle 30 is configured in the back push position, and the angle between the handle 30 and the link member 61 when the handle 30 is configured in the face-to-face push position. In addition, the first position, the second position and the distance D1 can also be adjusted by adjusting the distance between the connection position of the link member 61 and the handle 30 and the connection position of the link member 61 and the seat support body 41 (the distance between the rotation axis X61a and the rotation axis X61b). In addition, the first position, the second position and the distance D1 can also be adjusted by adjusting the connection position of the handle 30 and the link member 61 (the position of the rotation axis X61a on the handle 30). In addition, the first position, the second position and the distance D1 can also be adjusted by adjusting the swing amount (swing angle) when the handle 30 is moved from the back push position to the face-to-face push position.

[0079] The first position and the second position can be determined in the following manner. That is, the first position and the second position can be determined in such a manner that the connection portion (in the example shown in the figure, the rotation axis X40) between the seat support body 41 and the back support body 45 is located behind the rear legs 16 when the handle 30 is arranged in the back push position, and is located in front of the rear legs 16 when the handle 30 is arranged in the face-to-face push position. As a result, when the position of the handle 30 is switched, the distance in the front-to-back direction between the center of gravity of the infant on the stroller 10 and the grip portion 33 of the handle 30 is effectively suppressed from changing, and the operability of the stroller 10 is effectively suppressed from changing.

[0080] In addition, the second position may be determined in the following manner. That is, when the baby carriage body 11 is viewed from the side, the connection between the seat support 41 and the back support 45 (in the example shown in the figure, the rotation axis X40) when the seat support 41 is arranged in the second position may be located forward of the connection between the rear leg 16 and the rear wheel holding member 19a by a distance D2 (see FIG. Figure 2 ) (in other words, the distance D3 in the front-to-back direction between the rotation axis X40 and the connection portion between the rear leg 16 and the rear wheel holding member 19a when the handle 30 is arranged in the face-to-face pushing position (refer to Figure 2 ) is at least one quarter of the distance D2 in the front-to-back direction between the connection portion between the rear leg 16 and the rear wheel holding member 19a and the connection portion between the front leg 14 and the front wheel holding member 18a. This more effectively prevents the distance in the front-to-back direction between the center of gravity of the infant on the stroller 10 and the grip portion 33 of the handle 30 from changing when the position of the handle 30 is switched, and more effectively prevents the operability of the stroller 10 from changing.

[0081] Alternatively, the distance D4 in the horizontal direction between the front wheel rotation axis 18c and the front wheel rotation axis 18b in a plane perpendicular to the front wheel rotation axis 18b may be used (see Figure 1 Here, when the front wheel holding member 18a rotates around the front wheel rotation axis 18c, as shown in FIG. Figure 1 and Figure 2As shown, the position of the front wheel rotation axis 18b relative to the front wheel rotation axis 18c changes when the handle 30 is arranged in the back push position to operate the baby carriage 10 and when the handle 30 is arranged in the face-to-face push position to operate the baby carriage 10. In the example shown in the figure, when the handle 30 is arranged in the back push position to operate the baby carriage 10, the front wheel rotation axis 18b is located behind the front wheel rotation axis 18c. On the other hand, when the handle 30 is arranged in the face-to-face push position to operate the baby carriage 10, the front wheel rotation axis 18b is located in front of the front wheel rotation axis 18c. When the handle 30 is arranged in the face-to-face push position to operate the baby carriage 10, the operator of the baby carriage 10 operates the baby carriage 10 with the front wheel rotation axis 18b as a fulcrum. In such a baby stroller in which the front wheel 18 is swiveled, when the position of the seat support body 41 in the front-to-back direction does not change with the swinging of the handle 30, the distance in the front-to-back direction between the front wheel rotation axis 18b and the seat support body 41 when the baby stroller is operated by placing the handle 30 in the face-to-face push position is greater than the distance in the front-to-back direction between the front wheel rotation axis 18b and the seat support body 41 when the baby stroller is operated by placing the handle 30 in the back push position by twice the distance D4. Therefore, in the example shown in the figure, by setting the distance D1 to be more than twice the distance D4, the change in the distance in the front-to-back direction between the front wheel rotation axis 18b and the seat support body 41 caused by the swinging of the front wheel 18 is eliminated. Thus, the change in the operability of the baby stroller 10 caused by the swinging of the front wheel 18 can be suppressed.

[0082] <Modification> Next, refer to Figure 7 and Figure 8 , a modified example of this embodiment is described. Figure 7 and Figure 8 In, with Figures 1 to 6 The same parts as shown in the above-mentioned embodiments are denoted by the same symbols and detailed description is omitted.

[0083] The support link member 60 may include a plurality of link members. In addition, the support link member 60 may support not only the seat support body 41 but also the back support body 45 .

[0084] exist Figure 7 and Figure 8 In the example shown, the support link member 60 includes a first link member 65 to a third link member 67. The first link member 65 extends in the front-rear direction as a whole. The first link member 65 is connected to the middle part of the handle extension 32 at its middle part. The first link member 65 can rotate relative to the handle extension 32 around a rotation axis X65 extending in the width direction.

[0085] The second link member 66 extends in the up-down direction as a whole. The second link member 66 is connected to the front part of the first link member 65 at its upper part. The second link member 66 can rotate relative to the first link member 65 around the rotation axis X66a extending in the width direction. In addition, the second link member 66 is connected to the side portion 43 of the seat support body 41 at its lower part. The second link member 66 can rotate relative to the seat support body 41 around the rotation axis X66b extending in the width direction.

[0086] The third link member 67 extends in the up-down direction as a whole. The third link member 67 is connected to the rear portion of the first link member 65 at its upper portion. The third link member 67 is rotatable relative to the first link member 65 around the rotation axis X67a extending in the width direction. In addition, the third link member 67 is connected to the side portion 47 of the back support body 45 at its lower portion. The third link member 67 is rotatable relative to the back support body 45 around the rotation axis X67b extending in the width direction.

[0087] In this modification, the stroller body 11 may also include a first limiting unit 62 that limits the movement of the seat support 41 relative to the main frame 12. The first limiting unit 62 may limit the rotation of at least one link member among the plurality of link members 65 to 67 relative to the handle 30. Figure 7 and Figure 8 In the example shown, the first limiting unit 62 is a locking mechanism that prevents the first link member 65 from rotating relative to the handle 30 and prevents the second link member 66 and the third link member 67 from rotating relative to the first link member 65. With such a first limiting unit 62, when the handle 30 is arranged in the back push position, the seat support body 41 can be stably held in the first position (see Figure 7 In addition, by using such a first limiting unit 62, when the handle 30 is arranged in the face-to-face pushing position, the seat support body 41 can be stably maintained at a second position further forward than the first position (see Figure 8 ).

[0088] In addition, in this modified example, the stroller body 11 may also include a second limiting unit 63 that limits the rotation of the second link member 66 relative to the seat support body 41. The second limiting unit 63 may be a locking mechanism that prevents the second link member 66 from rotating relative to the seat support body 41. The second limiting unit 63 can maintain the angle of the seat support body 41 relative to the second link member 66 at a desired angle. Therefore, the second limiting unit 63 can maintain the angle of the seat support body 41 relative to the walking surface S at a desired angle.

[0089] In addition, in this modified example, the stroller body 11 may include a third limiting unit 64 that limits the rotation of the support link member 60 relative to the back support body 45. The third limiting unit 64 may be a locking mechanism that prevents the third link member 67 from rotating relative to the back support body 45. The third limiting unit 64 can maintain the angle of the back support body 45 relative to the third link member 67 at a desired angle. Therefore, the third limiting unit 64 can maintain the angle of the back support body 45 relative to the walking surface S at a desired angle, and as a result, the third limiting unit 64 can maintain the angle of the seat support body 41 relative to the walking surface S at a desired angle. That is, the angle of the seat support body 41 relative to the walking surface S can be maintained at a desired angle by using the third limiting unit 64 instead of the second limiting unit 63.

[0090] right Figure 7 and Figure 8 The functions of the supporting link member 60 and the limiting units 62 to 64 when the position of the handle 30 is switched in the modified example shown in the figure are described. First, the case where the handle 30 is moved from the back push position to the face-to-face push position is described. If the handle 30 is swung from the back push position to the face-to-face push position, the link members 65 to 67 move forward together with the handle 30. In addition, the link members 65 to 67 rotate relative to the handle 30 as the handle 30 swings due to the action of gravity. In addition, the link members 66 and 67 rotate relative to the first link member 65 due to the action of gravity. As a result, the seat support body 41 automatically moves forward as the handle 30 swings. After the handle 30 is arranged in the face-to-face push position, the first link member 65 is rotated relative to the handle 30 as needed, and the link members 66 and 67 are rotated relative to the first link member 65 to adjust the position of the seat support body 41 to the second position. Thereafter, the first limiting unit 62 is used to limit the rotation of the first link member 65 relative to the handle 30 and to limit the rotation of the link members 66 and 67 relative to the first link member 65, and the seat support body 41 is maintained at the second position. In addition, as required, the seat support body 41 is rotated relative to the second link member 66, and the seat support body 41 is made substantially parallel to the walking surface S. Thereafter, the second limiting unit 63 is used to limit the rotation of the seat support body 41 relative to the second link member 66, or the third limiting unit 64 is used to limit the rotation of the back support body 45 relative to the third link member 67, and the seat support body 41 is maintained substantially parallel to the walking surface S.

[0091] Next, the case where the handle 30 is moved from the face-to-face push position to the back push position is described. If the handle 30 is swung from the face-to-face push position to the back push position, the link members 65 to 67 move backward together with the handle 30. In addition, the link members 65 to 67 rotate relative to the handle 30 due to the action of gravity as the handle 30 swings. In addition, the link members 66 and 67 rotate relative to the first link member 66 due to the action of gravity. As a result, the seat support body 41 automatically moves backward as the handle 30 swings. After the handle 30 is arranged in the face-to-face push position, the first link member 65 is rotated relative to the handle 30 as needed, and the link members 66 and 67 are rotated relative to the first link member 65 to adjust the position of the seat support body 41 to the first position. Thereafter, the first limiting unit 62 is used to limit the rotation of the first link member 65 relative to the handle 30 and to limit the rotation of the link members 66 and 67 relative to the first link member 65, so that the seat support body 41 is maintained in the first position. Furthermore, as required, the seat support 41 is rotated relative to the second link member 66 so that the seat support 41 is substantially parallel to the walking surface S. Thereafter, the seat support 41 is kept substantially parallel to the walking surface S by restricting the rotation of the seat support 41 relative to the second link member 66 by the second restriction unit 63 or by restricting the rotation of the back support 45 relative to the third link member 67 by the third restriction unit 64.

[0092] according to Figure 7 and Figure 8 The modified example shown can also change the front-to-back position of the seat support body 41 in the main frame 12 according to the swing of the handle 30, and can change the front-to-back position of the center of gravity of the infant supported by the seat support body 41. As a result, the change in the front-to-back distance between the grip portion (middle portion 33) of the handle 30 and the center of gravity of the infant when the position of the handle 30 is switched is suppressed, and the change in the operability of the stroller 10 is suppressed.

[0093] <Other Modifications> In the above example, the seat support body 41 is connected to the handle 30 via the support link member 60 that can rotate relative to the handle 30, but is not limited to this. The seat support body 41 can also be connected to the handle 30 via a support member that cannot rotate relative to the handle 30. In this case, the seat support body 41 is preferably rotatable relative to the support member. Thereby, the change in the angle of the seat support body 41 relative to the walking surface S caused by swinging the handle 30 can be suppressed. Therefore, whether the handle 30 is arranged in the back push position or the face-to-face push position, the infant on the seat support body 41 can be properly supported.

[0094] The stroller 10 of one embodiment and its modified example described above includes a stroller body 11. The stroller body 11 includes a main frame 12, a handle 30, and a seat support unit 40. The handle 30 is mounted on the main frame 12 in a manner that allows it to swing in the front-rear direction. The seat support unit 40 includes a seat support body 41 supported by the handle 30. The position of the seat support body 41 in the main frame 12 in the front-rear direction changes according to the swing of the handle 30. According to such a stroller 10, when the position of the handle 30 is switched, the distance in the front-rear direction between the center of gravity of the infant on the stroller 10 and the grip 33 of the handle 30 can be suppressed from changing, and the operability of the stroller 10 can be suppressed from changing.

[0095] In the above-described embodiment and its modified example, the limiting means 62 is provided to limit the front-rear movement of the seat support 41 relative to the main frame 12. Thus, the seat support 41 can be stably held at a predetermined position relative to the main frame 12.

[0096] In the above-described embodiment and its modified example, the seat support body 41 can rotate relative to the handle 30. Thus, the angle of the seat support body 41 relative to the walking surface S can be adjusted to a desired angle. Therefore, even if the handle 30 is swung, the seat support body 41 can be made substantially parallel to the walking surface S.

[0097] In the above-described embodiment and its modified example, a restriction means for restricting the rotation of the seat support body 41 relative to the handle is provided. Thus, the angle of the seat support body 41 relative to the walking surface S can be maintained at a desired angle.

[0098] In the above-described embodiment and its modified example, the seat support 41 and the handle 30 are connected via the support link member 60. The stroller body 11 includes restriction units 62 and 63 for restricting the rotation of the support link member 60 relative to the seat support 41 and / or the handle 30. In the above-described modified example, the support link member 60 includes a plurality of link members 65 to 67 that are rotatable relative to each other.

[0099] In one embodiment and its modified example described above, the seat support unit 40 includes a back support body 45. The back support body 45 is movable together with the seat support body 41. According to such a baby stroller 10, even if the position of the seat support body 41 relative to the main frame 12 in the front-to-back direction changes, the positional relationship between the seat support body 41 and the back support body 45 can be maintained. Therefore, before the position of the seat support body 41 in the front-to-back direction is changed and after the position of the seat support body 41 in the front-to-back direction is changed, the riding comfort of the baby stroller 10 is suppressed from changing. In addition, when the position of the handle 30 is switched, the distance in the front-to-back direction between the center of gravity of the seat support unit 40 and the grip portion 33 of the handle 30 can be effectively suppressed from changing, and the operability of the baby stroller 10 can be effectively suppressed from changing.

[0100] In the above-described modification, the back support 45 is supported by the handle 30. The back support 45 can rotate relative to the handle 30. As a result, even if the handle 30 is swung, the angle of the back support 45 relative to the seat support 41 can be maintained. The seat support 41 and the handle 30, and the back support 45 and the handle 30 are connected by the support link member 60.

[0101] In one embodiment and its modified example described above, the seat support unit 40 includes a canopy support body 57. The canopy support body 57 is movable together with the seat support body 41. According to such a baby stroller 10, even if the position of the seat support body 41 in the front-to-back direction relative to the main frame 12 changes, the positional relationship between the seat support body 41 and the canopy support body 57 (and therefore also with the canopy) can be maintained. Even if the position of the seat support body 41 in the front-to-back direction is changed, a shaded environment can be appropriately provided for the infant on the seat support unit 40. In addition, when the position of the handle 30 is switched, the distance in the front-to-back direction between the center of gravity of the seat support unit 40 and the grip portion 33 of the handle 30 can be effectively suppressed from changing, and the operability of the baby stroller 10 can be effectively suppressed from changing.

[0102] In one embodiment and its modified example described above, the seat support unit 40 includes a guard 55. The guard 55 can move together with the seat support body 41. According to such a stroller 10, even if the position of the seat support body 41 in the front-to-back direction relative to the main frame 12 changes, the positional relationship between the seat support body 41 and the guard 55 can be maintained. Therefore, even if the position of the seat support body 41 in the front-to-back direction changes, the infant on the seat support unit 40 can be appropriately protected by the guard 55.

[0103] In the above-described embodiment and its modified example, the handle 30 can swing in the front-to-back direction between the back push position and the face-to-face push position. When the handle 30 is in the back push position, the seat support 41 is in the first position, and when the handle 30 is in the face-to-face push position, the seat support 41 is in the second position further forward than the first position. According to such a baby stroller 10, when the position of the handle 30 is switched, the distance in the front-to-back direction between the center of gravity of the infant in the baby stroller 10 and the grip 33 of the handle 30 can be effectively suppressed, and the change in the operability of the baby stroller 10 can be effectively suppressed.

[0104] In the above-described embodiment and its modified example, the main frame 12 includes the front legs 14 and the rear legs 16. The seat support unit 40 includes the back support 45 connected to the seat support 41. When the baby carriage body 11 is viewed from the side, when the seat support 41 is in the first position, the connection between the seat support 41 and the back support 45 is located behind the rear legs 16, and when the seat support 41 is in the second position, the connection between the seat support 41 and the back support 45 is located in front of the rear legs 16. According to such a baby carriage 10, when the position of the handle 30 is switched, the distance in the front-rear direction between the center of gravity of the infant on the baby carriage 10 and the grip 33 of the handle 30 can be effectively suppressed from changing, and the operability of the baby carriage 10 can be effectively suppressed from changing.

[0105] In the above-described embodiment and its modified example, the main frame 12 includes a front wheel holding member 18a, a front wheel 18, a rear wheel holding member 19a, and a rear wheel 19. The front wheel holding member 18a is connected to the front leg 14. The front wheel 18 is held by the front wheel holding member 18a in a manner that can rotate around a front wheel rotation axis 18b extending in the horizontal direction. The rear wheel holding member 19a is connected to the rear leg 16. The rear wheel 19 is held by the rear wheel holding member 19a in a manner that can rotate around a rear wheel rotation axis 19b extending in the horizontal direction. When the baby carriage body 11 is viewed from the side, the position of the connection portion of the seat support body 41 and the back support body 45 in the front-to-back direction when the seat support body 41 is arranged in the second position is located at a position more than one-fourth of the distance D2 in the front-to-back direction between the connection portion of the front leg 14 and the front wheel holding member 18a and the connection portion of the rear leg 16 and the rear wheel holding member 19a. According to such a stroller 10 , when the position of the handle 30 is switched, the distance between the center of gravity of the infant in the stroller 10 and the grip 33 of the handle 30 in the front-rear direction can be effectively suppressed from changing, and the operability of the stroller 10 can be effectively suppressed from changing.

[0106] In one embodiment and its modified example described above, the main frame 12 includes a front wheel holding member 18a, a front wheel 18, a rear wheel holding member 19a and a rear wheel 19. The front wheel holding member 18a is connected to the front leg 14. The front wheel 18 is held by the front wheel holding member 18a in a manner that it can rotate around the front wheel rotation axis 18b extending in the horizontal direction. The front wheel holding member 18a can rotate around the front wheel rotation axis 18c extending in the vertical direction. The distance D1 in the front-to-back direction between the first position and the second position is more than twice the distance D4 in the horizontal direction between the front wheel rotation axis 18c and the front wheel rotation axis 18b in the plane perpendicular to the front wheel rotation axis 18b. According to such a baby carriage 10, the change in the distance in the front-to-back direction between the front wheel rotation axis 18b and the center of gravity of the infant on the seat support body 41 caused by the rotation of the front wheel 18 can be eliminated. As a result, the change in the operability of the baby carriage 10 caused by the rotation of the front wheel 18 can be suppressed.

[0107] It should be noted that, although several modified examples of the above embodiment have been described above, it is of course possible to appropriately combine a plurality of modified examples and apply them.

Claims

1. A baby stroller, characterized in that: The invention has a baby stroller body, The baby carriage body comprises: Main frame; a handle mounted on the main frame in a manner that allows it to swing in a front-rear direction; and Seat support unit, The seat support unit includes a seat support body supported by the handle. The position of the seat support body in the main body frame in the front-rear direction changes according to the swing of the handle.

2. The baby stroller according to claim 1, characterized in that: The baby carriage includes a restriction unit that restricts movement of the seat support body in a front-rear direction relative to the main body frame.

3. The baby stroller according to claim 1, characterized in that: The seat support body is rotatable relative to the handle.

4. The baby stroller according to claim 3, characterized in that: The baby stroller includes a restriction unit that restricts rotation of the seat support body relative to the handle.

5. The baby stroller according to claim 1, characterized in that: The seat support body and the handle are connected via a support link member.

6. The baby stroller according to claim 5, characterized in that: The baby carriage includes a restriction unit that restricts rotation of the support link member relative to the seat support body and / or the handle.

7. The baby stroller according to claim 5, characterized in that: The support link component includes a plurality of link members that are rotatable relative to each other.

8. The baby stroller according to claim 1, characterized in that: The seat support unit includes a back support body, The back support is movable with the seat support.

9. The baby stroller according to claim 8, characterized in that: The back support is supported by the handle.

10. The baby stroller according to claim 8, characterized in that: The back support is rotatable relative to the handle.

11. The baby stroller according to claim 8, characterized in that: The seat support and the handle, and the back support and the handle are connected via a support link member.

12. The baby stroller according to claim 1, characterized in that: The seat support unit includes a canopy support body, The canopy support is movable together with the seat support.

13. The baby stroller according to claim 1, characterized in that: The seat support unit includes a protective member, The guard is movable together with the seat support.

14. The baby stroller according to claim 1, characterized in that: The handle can swing in the front-to-back direction between a back-pushing position and a face-to-face pushing position. When the handle is located at the rear push position, the seat support body is located at a first position, and when the handle is located at the face-to-face push position, the seat support body is located at a second position further forward than the first position.

15. The baby stroller according to claim 14, characterized in that: The main frame includes front legs and rear legs, The seat support unit includes a back support body connected to the seat support body, When viewed from the side, when the seat support is in the first position, the connection between the seat support and the back support is located behind the rear legs, and when the seat support is in the second position, the connection between the seat support and the back support is located in front of the rear legs.

16. The baby stroller according to claim 15, characterized in that: The main framework includes: A front wheel holding component connected to the front legs; a front wheel held by the front wheel holding member so as to be rotatable about a front wheel rotation axis extending in the horizontal direction; a rear wheel holding member connected to the rear legs; and a rear wheel held by the rear wheel holding member so as to be rotatable about a rear wheel rotation axis extending in the horizontal direction, When viewed from the side, the position of the connection portion of the seat support body and the back support body in the front-to-back direction when the seat support body is configured to the second position is located more forward of the connection portion of the rear legs and the rear wheel holding component by more than one quarter of the distance in the front-to-back direction between the connection portion of the front legs and the front wheel holding component and the connection portion of the rear legs and the rear wheel holding component.

17. The baby stroller according to claim 15, characterized in that: The main framework includes: a front wheel holding member connected to the front legs; and a front wheel held by the front wheel holding member so as to be rotatable about a front wheel rotation axis extending in the horizontal direction, The front wheel holding member can rotate around the front wheel rotation axis extending in the vertical direction. A distance between the first position and the second position in the front-rear direction is at least twice a distance between the front wheel turning axis and the front wheel turning axis in a plane perpendicular to the front wheel turning axis in the horizontal direction.

Images