JP3027803B2 - Folding baby carriage - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a foldable baby carriage and a folding mechanism used therein, and more particularly, to a widthwise dimension of the skeleton in conjunction with a folding operation of members constituting each side of the skeleton of the baby carriage. The present invention also relates to a foldable baby carriage and a foldable mechanism used in the foldable baby carriage.

[0002]

2. Description of the Related Art The basic structure of a foldable baby carriage that is of interest to the present invention is described in Japanese Patent Publication No. 57-50705 by the present applicant. The folding stroller disclosed in this publication has a reduced front-back dimension, a height dimension, and a width dimension in the folded state as compared with the opened state, and is portable and stored in the folded state. For convenience.

[0003]

However, there is room for further improvement in the above-mentioned folding stroller.

[0004] A particular problem to be solved is that it is difficult to reduce the weight of the stroller. This is probably because the number of parts is relatively large.

In order to increase the number of parts as described above, it is particularly necessary to link the movement of the members constituting the side surfaces of the frame of the stroller with the movement of the members defining the widthwise dimensions of the frame. This is because the mechanism for causing this interlock is relatively complicated. This is because the surface on which the movement of the members constituting each side of the frame of the stroller occurs and the surface on which the movement of the member defining the width dimension of the framework occurs are neither the same nor parallel, and intersect each other. In order to achieve such interlocking, it is necessary to be able to perform a so-called three-dimensional operation.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a relatively simple structure in which the movements of the members constituting each side surface of the frame of the baby carriage can be linked with the movements of the members defining the widthwise dimensions of the frame. An object of the present invention is to provide a folding mechanism and a foldable baby carriage using such a folding mechanism.

[0007]

According to the first aspect of the present invention, a foldable baby carriage is provided with a pair of handrail members extending in the front-rear direction and a relatively forward portion of each handrail member. A pair of front legs each having an upper end pivotally connected thereto and a front wheel attached to each lower end, and each upper end pivotally connected to a relatively forward portion of each handrail member. A pair of rear legs to each of which a rear wheel is attached at each lower end, and one end of each of the pair of rear legs being rotatable at a first pivot point with respect to each longitudinal center portion thereof. A pair of reversing members to be connected, and respective lower ends rotatably connected to respective other ends of the pair of reversing members;
A pair of push rods rotatably connected at a predetermined distance above each lower end to each rear end of the pair of handrail members, and a pair of front legs in the longitudinal direction of each central portion. A pair of side rods each of which has a front end pivotally connected at a second pivot point and a rear end pivotally connected to each other end of the pair of reversing members; A front leg connecting member passed between positions below the second pivot point of the pair of front legs; and a rear leg connecting member passed between positions below the first pivot point of the pair of rear legs. In the folded state, the width dimension is reduced by bending the front leg connecting member and the rear leg connecting member.

[0008] The features of the invention described in claim 1 are as follows. The hind leg connecting member includes a pair of hind leg sleeves rotatably mounted on each hind leg about a center axis of the hind leg, and a bendable hind leg connection connecting the pair of hind leg sleeves to each other. And a link. The fore leg connecting member includes a pair of fore leg sleeves respectively mounted on each fore leg so as to be rotatable around the center axis of the fore leg, and a bendable fore leg connecting link for connecting the pair of fore leg sleeves to each other.

Each of the reversing members is so arranged that the turning movement of each of the reversing members about the first pivot point is transmitted to each of the rear leg sleeves so as to rotate each of the rear leg sleeves around the center axis of the rear leg. And a rear leg motion transmitting means for connecting the rear leg sleeve to the rear leg sleeve. Further, each side bar and each front leg sleeve are connected so that the rotation of each side bar about the second pivot point is transmitted to each front leg sleeve to rotate each front leg sleeve around the center axis of the front leg. A front leg motion transmitting means for connection is provided.

In the first aspect of the present invention, both the front leg side motion transmitting means and the rear leg side motion transmitting means have been focused on.
In the invention described in claim 2, attention is paid only to the motion transmitting means on the rear leg side, and in the invention described in claim 3, only the motion transmitting means on the front leg side is focused.

In one preferred embodiment, the foreleg movement transmitting means has the following configuration. That is, a guide groove extending spirally is formed in each front leg sleeve. Each front leg is provided with a guide pin that is received in the guide groove. Each of the side bars is formed with a side bar extension that projects further forward than the second pivot point. Each side bar overhang and each front leg sleeve are connected to each other by a front leg rigid link.

In one preferred embodiment, the rear leg motion transmitting means has the following configuration. In other words, a spirally extending guide groove is formed in each rear leg sleeve. Each rear leg is provided with a guide pin that is received in the guide groove. Each reversing member has a first
Reversing member projecting portions projecting further to one end side from the pivot point of each. Each reversing member overhang and each rear leg sleeve are connected to each other by rear leg rigid links.

According to the present invention, when the bending operation starting from the reversing member is started, the front leg motion transmitting means operates to bend the front leg connecting member, and the rear leg motion transmitting means bends the rear leg connecting member. It works to make it work. Therefore, the size of the stroller in the width direction is reduced in the folded state.

In one preferred embodiment, the guide pin moves in the guide groove when the sleeve moves in the length direction of the rod-shaped member, but the guide groove is formed so as to extend in a spiral shape. Is given a rotational motion. Thus, this rotational movement of the sleeve causes a bending movement of the connecting link.

In a preferred embodiment, the action of converting linear motion to rotary motion is used to bend the front leg link and the rear leg link. The movement of the side bar and the reversing member is used to linearly move the sleeve, and the movement of the side bar and the reversing member is given to the sleeve by the front leg rigid link and the rear leg rigid link, respectively.

As described above, according to the present invention, the folding movement of the member forming the side surface of the frame of the stroller is converted into the rotational movement of the front leg sleeve or the rear leg sleeve, whereby the front leg connecting member or the rear leg connecting member is converted. It is to bend.

[0017]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a foldable stroller according to an embodiment of the present invention, which includes a foldable mechanism which is a feature of the present invention. In these drawings, only the frame of the baby carriage is shown, and in order to clearly show the configuration of such a frame, the illustration of a seat for seating an infant is omitted. The seat usually comprises a seat and a backrest.

FIG. 1 is a right side view showing an opened state of the baby carriage, and FIG. 2 is a rear view showing the opened state. FIG. 3 is a right side view showing the stroller in a closed state. FIG. 4 is a perspective view showing a main part of the stroller in a state during the folding operation.

This foldable baby carriage is roughly divided into a member constituting each side surface of the frame of the baby carriage, and a member passed between the members constituting each side surface and defining the widthwise dimension of the frame. The baby carriage has a symmetrical structure. Therefore, the same reference numerals will be used for the elements included in this stroller, which are respectively arranged on the left and right.

First, members constituting each side surface of the skeleton include the following. A pair of handrail members 1 are arranged to extend in the front-rear direction. The front ends of the pair of handrail members 1 are connected by a bendable body guard 2. The trunk guard 2 is preferably detachable from the handrail member 1.

An upper end of a pair of front legs 3 is rotatably connected to a relatively forward portion of the handrail member 1 by a pivot pin 4. A front wheel 5 is attached to a lower end of each front leg 3.

At a relatively forward portion of each handrail member 1,
The upper end of each of the pair of rear legs 6 is
To be rotatably connected. In this embodiment, a common pivot pin 4 is used to rotatably connect both the front leg 3 and the rear leg 6 to the handrail member 1. However, the front leg and the rear The legs may be rotatably connected to the handrail member by different pivot pins. A rear wheel 7 is attached to a lower end of each of the rear legs 6.

Each center portion of the pair of rear legs 6 in the longitudinal direction has one
One end of each of the pair of reversing members 8 is rotatably connected via a pivot pin 9. As shown in FIG. 4, the reversing member 8 includes two plates, and the rear leg 6 is arranged so as to be sandwiched between the plates.

The lower ends of a pair of push rods 10 are rotatably connected to the other ends of the pair of reversing members 8 by pivot pins 11. These push rods 10 are also located between the two plates provided for each reversing member 8. Further, the rear end of the handrail member 1 described above is rotatably connected to the position above the lower end of each of the push rods 10 by a pivot pin 12 at a predetermined distance above.

In this embodiment, the upper ends of the pair of push rods 10 are connected to each other by a bendable push rod connecting member 13. The push rod connecting member 13 provides a hand grip for pushing the baby carriage. At the center of the push rod connecting member 13, a lock release operation button 14 is provided so as to protrude downward. This lock release operation button 14
A push operation is performed to release both a lock for maintaining the stroller in an open state and a lock for maintaining the stroller in a closed state. Although not shown in detail, pressing the lock release operation button 14 causes the push rod connecting member 13 to be in a bendable state, and a wire (not shown) is connected to the operation of the button 14. The lock block 15 that is interlocked via the push rod 10 is pulled up along the push rod 10. The lock block 15 is moved by a spring (not shown).
As shown in FIG. 1, when the push rod 10 and the reversing member 8 are engaged with each other at the upper end thereof, the push rod 10 and the reversing member 8 are fixed to each other. Lock the open state of. On the other hand, in the closed state of the stroller, as shown in FIG. 3, the lock block 15 is engaged with the center of the reversing member 8 in the longitudinal direction, and the push rod 10 and the reversing member 8 are fixed to each other. Lock the locked state.

At each central part of the pair of front legs 3 in the length direction,
Each front end of the pair of side bars 16 is rotatably connected. For this connection, an end piece 17 is fixed to the front end of the side bar 16 as best shown in FIG. 4, and a pivot pin is inserted through both the end piece 17 and the front leg 3. 18 is attached. The rear end of each side bar 16 is rotatably connected to the end of the above-described reversing member 8. In this embodiment, for such connection, a pivot pin 11 for connecting the push rod 10 and the reversing member 8 described above is used.
The end piece 19 is attached to the rear end of the side bar 16 in order to absorb the difference in height between the rear end of the side bar 16 and the pivot pin 11. A pair of side bars 16 are used to hold the seat of the baby carriage.

Next, the members for defining the widthwise dimensions of the frame of the baby carriage include the following.

The front leg connecting member 20 is passed between the pair of front legs 3 at positions below the pivot pins 18.

A rear leg connecting member 21 is provided between the pair of rear legs 6 at positions below the pivot pins 9.

Further, in this embodiment, a pair of side bars 16 are provided.
, A side bar connecting member 22 is passed between the relatively front portions.

The above-described push rod connecting member 13 can also be regarded as a member for defining such a widthwise dimension of the skeleton.

As shown particularly well in FIG. 4, the front leg connecting members 20 are respectively mounted on each front leg 3 so as to be slidable and rotatable about the center axis of the front leg 3, respectively. And a bendable front leg connection link 24 connecting the pair of front leg sleeves 23 to each other. The fore leg connecting link 24 has two bending points 25 in this embodiment, and both ends of the fore leg connecting link 24 are fixed to the fore leg sleeve 23, respectively.

In this embodiment, since the front leg 3 is formed of a pipe having a circular cross section, such a front leg 3 is used.
If the front leg sleeve 23 is directly disposed on the front leg sleeve 23, such a front leg sleeve 23 can be turned around the center axis of the front leg 3. As will be described later, since the rear leg 6 and the side bar 16 are also formed of pipes having a circular cross section, the same advantages as in the case of the front leg 3 can be obtained. In addition, the front leg 3 does not have to have a circular cross-section, but has a circular cross-section only at a portion where the front leg sleeve 23 is located. May be arranged on the front leg 3. This is also true for the rear leg 6 and the side bar 16 described later.

A spirally extending guide groove 26 is formed in each front leg sleeve 23. Also, each front leg 3 has a guide pin 27 received in the guide groove 26.
Are respectively provided.

FIG. 5 is a development view of the front leg sleeve 23. In this embodiment, as shown in FIG. 5, one end of the guide groove 26 is provided with a front leg sleeve 23.
The rotation prohibiting portion 28 extending in parallel with the axial direction of

Each side bar 16 is formed with a side bar projecting portion 29 which projects further forward than the pivot pin 18. In this embodiment, the side bar projection 29 is formed integrally with the end piece 17.

As shown in FIG . 4, the respective side bar projections 29 and the front leg sleeve 23 are connected to each other by a front leg rigid link 30. And the front leg rigid links 30 and the front leg sleeves 23, before being consolidated so as to permit rotation of the leg sleeves 23. That is, referring to FIG.
Although the operation will be described, the front leg sleeve 23 is a front leg rigid link.
30 and lifted up as shown by arrow 49
Then, it rotates around the front leg 3 as shown by the arrow 50.

The configuration substantially the same as the configuration related to the front leg connecting member 20 described above is also adopted for the rear leg connecting member 21.

The rear leg connecting member 21 is mounted on each of the rear legs 6 so as to be slidable and rotatable around the center axis of the rear leg 6, respectively. And a foldable rear leg connecting link 32 connecting the first and second bases 31 to each other. The rear leg connecting link 32 has two bending points 33, and both ends of the rear leg connecting link 32
Each is fixed to the rear leg sleeve 31.

Each of the rear leg sleeves 31 is formed with a spirally extending guide groove 34. In addition, each rear leg 6 is provided with a guide pin 35 that is received in the guide groove 34.

The guide groove 34 is provided with a rotation prohibiting portion 36 at one end similarly to the guide groove 26.

Each reversing member 8 is formed with a reversing member projecting portion 37 projecting further to the end side than the pivot pin 9.

Each reversing member overhang 37 and each rear leg sleeve 3
1 are connected to each other by a rear leg rigid link 38. Preferably, the front leg rigid link 30 and the front leg
Like the relationship between the sleeve 23 and the rear leg rigid links 38 and rear leg sleeves 31, are consolidated to permit rotation of the rear leg sleeves 31.

The side bar connecting member 22 is provided with a pair of side bar sleeves 39 slidably mounted on each side bar 16 and rotatably around the central axis of the side bar 16, and a pair of side bar sleeves 39. And a foldable side bar connecting link 40 connecting the sleeves 39 to each other. Side bar connecting link 4
0 has two bending points 41 in this embodiment, and both ends of the side bar connecting link 40 are respectively connected to the side bar sleeve 3.
9 is fixed.

A guide groove 42 extending in a spiral shape is formed in each side bar sleeve 39. In addition, each side bar 16
Are provided with guide pins 43 received in the guide grooves 42, respectively.

FIG. 6 is an exploded view of the side bar sleeve 39. Each of the side bar sleeves 39 is formed with an activation piece 44 that extends laterally. This starting piece 44
Abuts on the front leg 3 in the initial stage when the stroller shifts from the open state to the closed state, whereby a force is applied from the front leg 3 to slide the side bar sleeve 39 on the side bar 16.

Next, the operation of the foldable stroller whose configuration has been mainly described above will be described.

First, when the stroller shown in FIGS. 1 and 2 is open, members constituting each side of the skeleton are
The reversing member 8 is pivoted along the upper half of the rear leg 6, so that the push rod 10 is brought to a relatively upper position. In this state, the lock block 15
The relative movement between the push rod 10 and the reversing member 8 is prohibited, and therefore,
The handrail member 1 and the rear leg 6 form a fixed triangle. In addition, the front leg 3, the rear leg 6, and the side bar 16
Thus, another triangle is formed. For these reasons, the stroller is kept open. At this time, with respect to the members that define the width direction dimensions of the skeleton, the respective movements are prohibited with the fixing of the above-described members constituting the side surfaces. Particularly, in each of the front leg sleeve 23 and the rear leg sleeve 31, the guide pins 27 and 35 are located in the rotation prohibiting portions 28 and 36 of the guide grooves 26 and 34, respectively. However, it should be noted that each of them cannot rotate about the center axis of the front leg 3 and the rear leg 6, respectively. Thereby, bending of the front leg connecting link 24 and the rear leg connecting link 32 can be more firmly prohibited.

In order to bring the folded stroller in the open state into the folded state, that is, into the closed state, first, the unlock operation button 14 is pressed. As a result, the lock block 15 is
, And the engagement with the reversing member 8 is released.

Next, while pushing the lock release operation button 14, the hand holding the push rod connecting member 13 is moved rearward, and the stroller is moved backward so that the front wheel 5 is lifted inside while the rear wheel 7 is kept on the ground. Tilt to As a result, the push rod connecting member 13 is bent, and the reversing member 8 is
It rotates in five directions. FIG. 4 shows a state in which the rotation of the reversing member 8 in the direction of the arrow 45 has progressed to some extent.

In accordance with the rotation of the reversing member 8 as described above, the rear leg rigid link 3 connected to the reversing member extension 37 is provided.
8 raises the rear leg sleeve 31 upward along the rear leg 6 as shown by the arrow 46. In response to this, the guide pin 35 moves in the guide groove 34, but since the guide groove 34 is formed so as to extend spirally, the rear leg sleeve 31 is rotated in the direction of the arrow 47. As a result, the rear leg connecting link 32 is bent through the bending point 33.

The rotation of the reversing member 8 in the direction of the arrow 45 is also transmitted to the front leg 3 via the side bar 16, and
Is drawn toward the rear leg 6.

At this time, the side bar 16 rotates in the direction of the arrow 48 with respect to the front leg 3. Therefore, the front leg rigid link 30 connected to the side bar overhang 29 is connected to the front leg sleeve 23.
Is pulled up along the front leg 3 as shown by an arrow 49. At this time, the guide pin 27 moves in the guide groove 26, but since the guide groove 26 is formed to extend in a spiral shape, the front leg sleeve 23 is rotated in the direction of the arrow 50. Thereby, the front leg connecting link 24 is bent through the bending point 25.

On the other hand, as a result of rotation of the side bar 16 in the direction of arrow 48 with respect to the front leg 3, the front leg 3 moves the side bar sleeve 39 through the activation piece 44 along the side bar 16. To give a force to slide in the direction of arrow 51. At this time, the guide pin 43 moves in the guide groove 42,
Since the guide groove 42 is formed so as to extend spirally, the side bar sleeve 39 is given a rotation in the direction of the arrow 52. Thereby, the side bar connecting link 40 is bent through the bending point 41.

The above-described operation proceeds further, and finally, the closed state as shown in FIG. 3 is obtained. In this state, the lock block 15 is engaged with another portion of the reversing member 8 again, so that the closed state is maintained. In this closed state, the front wheel 5 and the rear wheel 7 are aligned in the front-rear direction, so that the stroller can stand alone. The push rod connecting member 1 shown in FIG.
3. As can be seen from the states of the front leg connecting link 24, the rear leg connecting link 32, and the side bar connecting link 40, the left and right front wheels 5 and the left and right rear wheels 7 of the stroller substantially contact each other in the width direction. Folded to the extent.

Conversely, in order to change from the closed state shown in FIG. 3 to the state shown in FIG. 1 and FIG. 2, basically, the above-mentioned operation may be reversed. On the way, it passes through the state shown in FIG. 4 as in the case described above.

While the invention has been described with reference to the preferred embodiment illustrated, several other modifications are possible within the scope of the invention. Therefore, the above-described embodiment includes elements other than the essential components of the present invention.

For example, the side bar connecting member 22 has the side bar sleeve 39 and the side bar connecting link 40. However, a member corresponding to the side bar connecting member 22 is such that the pair of side bars 16 are close to each other. If it can be naturally bent by the side bar sleeve 39 as in the above-described embodiment.
It is not necessary to provide a configuration like the side bar connecting link 40.

The side bar connecting member 22 increases the strength of the stroller in an open state. However, if such an advantage is not desired, the side bar connecting member 22 may be omitted. Good.

The same applies to the push rod connecting member 13. That is, the push rod connecting member 13 is to increase the strength of the stroller in the open state, but may not be provided if such an advantage is not desired. If the push rod connecting member 13 is not provided and the strength of the stroller in an open state is insufficient, a member that is connected in the width direction at another portion of the stroller may be used. At this time, for example, a member extending in the width direction at the backrest of the seat of the stroller can be used to increase the strength of the stroller in the open state.

The sleeves 23, 3 as described above
1, 39 and connecting members 20, 21, 22 with connecting links 24, 32, 40, and sleeves 23, 31,
39, guide grooves 26, 34, 42 are formed,
The guide pin 2 is attached to a rod-shaped member such as the rear leg 6 and the side bar 16.
The folding mechanism provided with 7, 35, 43 can be used for other parts of the folding stroller, and can also be used for folding strollers other than the type shown.

[Brief description of the drawings]

FIG. 1 is a right side view showing an open state of a foldable baby carriage according to one embodiment of the present invention.

FIG. 2 is a rear view of the stroller shown in FIG.

FIG. 3 is a right side view showing a closed state of the stroller shown in FIG. 1;

FIG. 4 is a perspective view showing a state in the middle of the folding operation of the stroller shown in FIG. 1;

FIG. 5 is a development view of the front leg sleeve 23.

6 is a development view of the side bar sleeve 39. FIG.

[Explanation of symbols]

 Reference Signs List 1 handrail member 3 front leg 4 pivot pin 5 front wheel 6 rear leg 7 rear wheel 8 reversing member 9 pivot pin (first pivot point) 10 push rod 11,12 pivot pin 16 side rod 18 pivot pin (second Pivot point) 20 front leg connecting member 21 rear leg connecting member 23 front leg sleeve 24 front leg connecting link 25 bending point 26 guide groove 27 guide pin 29 side bar extension 30 front leg rigid link 31 rear leg sleeve 32 rear leg connecting link 33 folding Bending point 34 Guide groove 35 Guide pin 37 Reversing member overhang 38 Rear rigid link

Claims (3)

(57) [Claims] 1. A pair of handrail members extending in the front-rear direction, each upper end being rotatably connected to a relatively forward portion of each handrail member, and a front wheel being attached to each lower end. A pair of front legs, a pair of rear legs each having an upper end rotatably connected to a relatively front portion of each of the handrail members, and a rear wheel attached to each lower end; A pair of reversing members, one end of each of which is rotatably connected at a first pivot point to each central portion in the length direction of the pair of rear legs; Each lower end is rotatably connected to the other end, and a position a predetermined distance above each lower end is rotatably connected to each rear end of the pair of handrail members. A pair of push rods, and a front end of each of the pair of front legs is a second pivot with respect to each longitudinal center. A pair of side bars rotatably connected at a point, and a rear end thereof rotatably connected to each other end of the pair of reversing members; and a pair of side bars of the pair of front legs. A front leg connecting member passed between positions below the second pivot point; and a rear leg connecting member passed between positions below the first pivot point of the pair of rear legs, wherein the rear leg connecting member is in the folded state. In a folding stroller in which a width dimension is reduced by bending a front leg connecting member and a rear leg connecting member, the rear leg connecting members are respectively mounted on the respective rear legs so as to be rotatable around a center axis of the rear leg. A pair of rear leg sleeves, and a bendable rear leg connection link connecting the pair of rear leg sleeves to each other, wherein the front leg connection member rotates on each of the front legs about a central axis of the front leg. Movably mounted A pair of front leg sleeves, and a bendable front leg connecting link connecting the pair of front leg sleeves to each other, wherein the pivoting movement of each of the reversing members about the first pivot point is performed on each of the rear legs. Rear leg motion transmitting means for connecting each of the reversing members and each of the rear leg sleeves is provided so as to transmit the rear leg sleeves around the central axis of the rear leg by transmitting the rear leg sleeves to the leg sleeve; The respective side bars and the respective front leg sleeves are connected so that the rotation of the respective side bars about the pivot point is transmitted to the respective front leg sleeves and the respective front leg sleeves are rotated about the central axis of the front leg. A folding stroller characterized by being provided with a front leg motion transmitting means. 2. A pair of handrail members extending in the front-rear direction, each upper end being rotatably connected to a relatively forward portion of each handrail member, and a front wheel being attached to each lower end. A pair of front legs, a pair of rear legs each having an upper end rotatably connected to a relatively front portion of each of the handrail members, and a rear wheel attached to each lower end; A pair of reversing members, one end of each of which is rotatably connected at a first pivot point to each central portion in the length direction of the pair of rear legs; Each lower end is rotatably connected to the other end, and a position a predetermined distance above each lower end is rotatably connected to each rear end of the pair of handrail members. A pair of push rods, and a front end of each of the pair of front legs is a second pivot with respect to each longitudinal center. A pair of side rods rotatably connected at a point, and each rear end of which is rotatably connected to each other end of the pair of reversing members; and A rear leg connecting member that is passed between positions below a first pivot point, wherein the rear leg connecting member is bent to reduce a widthwise dimension in a folded state, wherein the rear leg connecting member is provided. A pair of rear leg sleeves mounted on each of the rear legs so as to be rotatable about the center axis of the rear leg, and a bendable rear leg connecting link connecting the pair of rear leg sleeves to each other. The rotation of each of the reversing members about the first pivot point is transmitted to each of the rear leg sleeves to rotate each of the rear leg sleeves around the center axis of the rear leg. Connect the side bar to each of the rear leg sleeves Wherein the leg movement transmission means are provided, folding stroller. 3. A pair of handrail members extending in the front-rear direction, each upper end being rotatably connected to a relatively forward portion of each handrail member, and a front wheel being attached to each lower end. A pair of front legs, a pair of rear legs each having an upper end rotatably connected to a relatively front portion of each of the handrail members, and a rear wheel attached to each lower end; A pair of reversing members, one end of each of which is rotatably connected at a first pivot point to each central portion in the length direction of the pair of rear legs; Each lower end is rotatably connected to the other end, and a position a predetermined distance above each lower end is rotatably connected to each rear end of the pair of handrail members. A pair of push rods, and a front end of each of the pair of front legs is a second pivot with respect to each longitudinal center. A pair of side bars rotatably connected at a point, and a rear end thereof rotatably connected to each other end of the pair of reversing members; and a pair of side bars of the pair of front legs. A front leg connecting member that is passed between positions below the second pivot point. A pair of front leg sleeves respectively mounted on each front leg so as to be rotatable around a center axis of the front leg, and a bendable front leg connection link connecting the pair of front leg sleeves to each other; The respective side bars and the respective front leg sleeves are connected so that the rotation of the respective side bars about the fulcrum is transmitted to the respective front leg sleeves and the respective front leg sleeves are rotated about the center axis of the front leg. Previous Motion transmission means, characterized in that is provided, foldable baby carriage.