KR20150070118A - Stroller - Google Patents

Abstract

The stroller can be deformed between the use state and the folded state. The stroller includes a front wheel supporting element supporting a front wheel, a rear wheel supporting element connected to the front wheel supporting element so as to be rotatable relative to the front wheel supporting element and supporting the rear wheel, a main link element connected to be rotatable relative to the front wheel supporting element, And a connecting link element extending between the main link element and the rear wheel support element and being rotatable relative to each of the main link element and the rear wheel support element.

Description

Stroller {STROLLER}

The present invention relates to a baby carriage which is deformable between a use state and a folded state, and more particularly to a baby carriage which has a simple structure and can effectively prevent the seat from becoming dirty when folded and stored.

EP 1972522A2 (CN 101269667A) discloses a stroller which is deformable between a use state and a folded state. The stroller disclosed in Patent Document 1 is provided with a rear leg 6, a handle bar 4 rotatably attached to the upper end of the horn, a front leg 2 rotatably attached to the handle bar, And transverse members 8 and 9 connecting between the full angle 2 and the smell 6. In the baby carriage disclosed in Patent Document 1, when the baby carriage is deformed from the use state to the folded state, the baby carriage rotates with respect to the smell so that the handlebar collapses to the rear side.

In general, the seat on which the infant is seated is supported by a handle bar or a support portion that performs the same operation as the handle bar during the folding operation. Therefore, in the baby carriage disclosed in Patent Document 2, in a folded state in which the handlebar collapses to the rear side, the face that comes into contact with the baby's baby is exposed to the outside. For this reason, when the baby carriage is folded and stored, foreign matter or the like sticks to the seat, and the seat tends to become dirty.

EP 1972522A2 (CN 101269667A)

SUMMARY OF THE INVENTION The present invention has been made in view of the above points, and it is an object of the present invention to provide a stroller which has a simple structure and can effectively prevent a sheet from being dirty when folded and stored.

Further, the baby carriage disclosed in EP 1972522 (CN 101269667) is disposed at a position where the front wheel and the rear wheel are separated from each other in the folded state. Such a baby carriage can not stably stand up in a folded state. As a result, the handleability of the folded baby carriage is poor, and the storage space required for the folded baby carriage is wide. The baby stroller according to the present invention is more convenient when such a problem is solved.

In the first baby carriage according to the present invention,

A stroller which is deformable between a use state and a folded state,

A front wheel supporting element for supporting a front wheel,

A rear wheel supporting element connected to the front wheel supporting element in a relatively rotatable manner and supporting a rear wheel,

A main link element connected to be rotatable relative to the front wheel supporting element,

And a connecting link element extending between the main link element and the rear wheel support element and relatively rotatable with respect to each of the main link element and the rear wheel support element.

In the first baby carriage according to the present invention,

The connecting link element comprises:

Wherein the main link element is rotatably attached to a portion of the main link element which is lower than the center of rotation relative to the front wheel support element in the use state,

The rear wheel support element may be rotatably attached to an extending projection that is a side away from the rear wheel relative to a center of rotation relative to the front wheel support element.

The first baby carriage according to the present invention may further include a handle connected to be rotatable relative to the main link element. Alternatively, in the first baby carriage according to the present invention, the main link element may constitute a handle.

In the first baby carriage according to the present invention, when deforming from the use state to the folded state, a portion of the main link element extending upward from the center of rotation relative to the front wheel supporting element The main link element is rotated with respect to the front wheel support element so that the front link element is collapsed so that the portion of the main link element extending upward from the center of rotation relative to the front wheel support element approaches the front wheel support element do.

In the first baby carriage according to the present invention, when the front wheel and the rear wheel are deformed from the use state to the folded state, the front wheel supporting element and the rear wheel supporting element may be relatively rotated.

In the first baby carriage according to the present invention,

Wherein the main link element is capable of engaging with a portion of the front wheel support element which is located between a position for supporting the front wheel of the front wheel support element and a relative rotation center of the front wheel support element and the main link element,

The relative rotation of the main link element and the front wheel support element may be regulated by engaging the main link element and the portion of the front wheel support element.

In the first baby carriage according to the present invention,

Wherein the front wheel supporting element includes a full-width-wise member at least extending between a center of rotation relative to the main link element and a position for supporting the front wheel, and a connecting member provided on the full-

Wherein the rear wheel supporting element is rotatably attached to the connecting member,

The main link element can engage with the connecting member and the relative rotation of the main link element and the front wheel support element can be regulated by engaging the main link element and the front wheel support element.

In the first baby carriage according to the present invention, a seat support part plate which faces the buttocks of the infant riding on the baby carriage may be provided, and the connection link element may be formed by the seat support part support plate.

In the first baby carriage according to the present invention,

A pair of the main link elements are provided on both sides of the seat support portion,

A pair of the rear wheel supporting elements are provided on both sides of the seat supporting portion support plate,

A pair of front wheel supporting elements are provided on both sides of the seat supporting portion support plate,

Wherein both side portions of the sitting support plate constitute the connecting link element and are connected to be rotatable relative to the main link element and the rear wheel supporting element on the corresponding side,

Each of the front wheel supporting elements may be connected so as to be rotatable relative to the corresponding one of the main link element and the rear wheel supporting element.

In the first baby carriage according to the present invention, the holding body is disposed so as to face the surface of the seat-sitting portion support plate opposite to the side facing the buttocks, and between the holding body and the seat- A receiving space may be formed which is open at least rearward in a deployed state.

In the first baby carriage according to the present invention, a handle may be provided at a rear portion of the seat supporting portion support plate.

In the first baby carriage according to the present invention, the handle may protrude upward from the seat supporting portion support plate in a folded state of the baby carriage.

In the first baby carriage according to the present invention, a hook hanger may be provided on the seat supporting plate.

The first baby carriage according to the present invention may further include a seat having a seat portion, a back portion connected to the seat portion, and a side wall portion provided on the side of the seat portion and the back portion,

The rear wheel supporting element has an extending projection that extends beyond the center of relative rotation with the front wheel supporting element and that is extended from the side supporting the rear wheel,

The side wall portion of the seat may be attached to the extending projection and a portion of the main link element extending upward from the center of rotation relative to the front wheel supporting element in the use state.

In the second baby carriage according to the present invention,

As a deformable stroller between the use state and the folded state,

A front wheel supporting element for supporting a front wheel,

A rear wheel support element that supports the rear wheel and is relatively rotatable with the front wheel support element,

And a handle rotatable relative to the front wheel support element and the rear wheel support element,

The handle and the front wheel supporting element are brought into close contact with each other when the front wheel and the rear wheel are deformed from the use state to the folded state, The front wheel supporting element and the rear wheel supporting element are relatively rotated.

The second baby carriage according to the present invention further comprises a seat having a seat portion, a back portion connected to the seat portion, and a side wall portion provided on the side of the seat portion and the back portion,

The rear wheel supporting element has an extending projection that extends beyond the center of relative rotation with the front wheel supporting element and that is extended from the side supporting the rear wheel,

The side wall portion of the seat may be attached to a portion extending upward from the center of relative rotation between the extending projection and the front wheel support element of the handle in the use state.

The first baby carriage or the second baby carriage according to the present invention further comprises a seat having a sitting portion and a back portion connected to the sitting portion,

The rear wheel supporting element has an extending projection that extends beyond the center of relative rotation with the front wheel supporting element and that is extended from the side supporting the rear wheel,

And the sheet may be supported by the extending projection.

In the first baby carriage or the second baby carriage according to the present invention, the angle formed by the portion of the extending projection that supports the seat in the front-rear direction in the side view (side view) Of the front wheel supporting element may be smaller than an angle formed between the position for supporting the rear wheel and the center of rotation relative to the front wheel supporting element with respect to the front-rear direction.

In the first baby carriage or the second baby carriage according to the present invention, the extending projection may be bent such that the angle formed in the front-back direction in the side view in the use state becomes smaller at the front side.

In the first baby carriage or the second baby carriage according to the present invention, the relative rotation center of the front wheel supporting element and the rear wheel supporting element, when the front wheel and the rear wheel are in contact with the ground surface, , And may be located between the ground position of the front wheel and the ground position of the rear wheel in the direction along the ground surface.

In the first baby carriage or the second baby carriage according to the present invention, the baby carriage may be self-supporting in the folded state.

According to the present invention, the stroller has a simple structure, and when the stroller is folded and stored, it is possible to effectively prevent the seat from becoming dirty.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a perspective view showing a baby carriage in a use state, for explaining an embodiment of the present invention. Fig.
Fig. 2 is a perspective view showing the baby carriage body of the baby carriage of Fig. 1 in use; Fig.
Fig. 3 is a side view showing the baby carriage body of Fig. 2 in a use state from the side. Fig.
4 is a partial perspective view showing a baby carriage body in a use state;
5 is a side view showing the baby carriage body in a folded state;
6 is a perspective view showing a baby carriage body in a folded state;
7 is a partial perspective view showing a baby carriage body being deformed from a use state to a folded state;
8 is a cross-sectional view taken along the line VIII-VIII in Fig. 5;
Fig. 9 is a diagram (line diagram) schematically showing the components of the baby carriage body in a use state from the side. Fig.
Fig. 10 is a diagram schematically showing a side view of the components of the baby carriage body in the folded state. Fig.
Fig. 11 is a perspective view corresponding to Fig. 2, showing a modified example of the baby carriage body. Fig.
Fig. 12 is a perspective view corresponding to Fig. 2, showing another modification of the baby carriage body; Fig.
Fig. 13 is a diagram corresponding to Fig. 9, schematically showing a side view of the components of the baby carriage body of Fig. 12; Fig.
Fig. 14 is a perspective view corresponding to Fig. 1, showing another modification of the baby carriage body; Fig.
Fig. 15 is a perspective view corresponding to Fig. 2, showing the baby carriage body of Fig. 14; Fig.
Fig. 16 is a diagram corresponding to Fig. 9, showing the baby carriage body of Fig. 15; Fig.
Fig. 17 is a side view corresponding to Fig. 5, showing the baby carriage body of Fig. 15 in a folded state; Fig.
Fig. 18 is a perspective view corresponding to Fig. 6, showing the baby carriage body of Fig. 15 in a folded state; Fig.

Hereinafter, an embodiment of the present invention will be described with reference to Figs. 1 to 10. Fig.

Fig. 1 shows the entire configuration of the baby carriage 10 in one embodiment. The illustrated baby carriage 10 includes a baby carriage body 15 having a front wheel 21 and a rear wheel 31, a seat (seat unit) 70 mounted on the baby carriage body 15, And has an attached awning 75. In this baby carriage (10), the baby sit on the seat (70) or fall asleep. 1, 9, 10, 14, and 16, the stroller 10 is shown in a state in which the seat 70 is separated for the sake of understanding. The seat 70 includes a sitting portion 71 and a backrest portion 72 which is connected to the sitting portion 71 and is located behind the sitting portion 71 and a backrest portion 72 which is connected to the sitting portion 71 and the backrest portion 72 And left and right sidewall portions 73 extending in both lateral directions. The baby carriage 10 as a whole is generally symmetrical with respect to the center in the width direction extending along the longitudinal direction.

As shown in Figs. 1 to 3, Fig. 5, Fig. 6, Fig. 9, and Fig. 10, the baby carriage 10 described herein can be deformed between the use state (unfolded state) and the folded state. As shown in the figure, the folded stroller 10 is downsized in the forward and backward directions and in the width direction as compared with the stroller 10 in use so as to have a size suitable for storage or the like. Many components of the baby carriage body 15 are directly or indirectly connected so as to be relatively rotatable in order to enable folding. The seat 70 is formed by using flexible fabric or mesh material or the like and is deformed between the use state and the folded state according to the operation of the baby carriage body 15. [

In the present specification, the terms "before", "after", "upper", and "lower" for the baby carriage 10 and the baby carriage body 15 are used in the use state (unfolded state) Quot ;, " back ", " upper ", and " lower " Therefore, the " forward and backward direction " corresponds to a direction connecting the lower left portion and the upper right portion of the paper surface in Fig. Unless otherwise indicated, the term " before " means the side toward the infant who rides, and the lower left side of the paper in Fig. 1 is the " front side ". On the other hand, the " vertical direction " is a direction orthogonal to the front-back direction and perpendicular to the ground plane of the baby carriage 10. [ Therefore, when the ground contact surface of the baby carriage 10 is a horizontal plane, the " vertical direction " The "transverse direction" and the "width direction" are directions orthogonal to any of the "front-back direction" and the "up-down direction". The "right" and "left" also mean "right" and "left" in the lateral direction or the width direction, respectively, with reference to an infant who rides on the baby carriage 10.

First, the components of the baby carriage body 15 described above and attached to the baby carriage body 15 thereafter will be described.

1 to 10, the baby carriage body 15 includes a front wheel supporting element 20 that rotatably supports the front wheel 21 and a rear wheel supporting member 20 which is rotatable relative to the front wheel supporting element 20, 31 and a handle 50 which is rotatable relative to the front wheel supporting element 20 and the rear wheel supporting element 30.

2 to 7, the handle 50 includes a pair of left and right main portions 51 and a pair of left and right main portions 51, And a connection portion 52. Each of the main portions 51 constitutes a main link element 40 which functions as a link member when the baby carriage body 15 is deformed between the use state and the folded state. That is, in the illustrated embodiment, the main link element 40 constitutes a part of the handle 50. 2 to 7, the baby carriage body 15 is provided with a pair of front wheel supporting elements 20 connected to the corresponding main link element 40 in a relatively rotatable manner, And a pair of rear wheel supporting elements 30 which are connected so as to be rotatable relative to the corresponding front wheel supporting elements 20 are provided. The baby carriage 10 also extends between the main link element 40 and the rear wheel support element 30 on the corresponding side and also extends between the main link element 40 and the rear wheel support element 30 on the corresponding side And has a connection link element 60 that can be pivoted relative to the base plate.

As can be understood from Figs. 3 and 9, each front wheel supporting element 20 rotatably holds the front wheel 21 at the lower portion, particularly at the lower end in the illustrated example. Each of the front wheel supporting elements 20 has a front engaging member 23 functioning as a front engaging portion for rotatably supporting the front wheel 21 and a first connecting member 25 attached to the middle portion of the front engaging member 23 have. The full angle member 23 at least extends from a position for supporting the front wheel 21 to a relative rotation center RC2 of the front wheel supporting element 20 and the main link element 40. [ In the illustrated example, the full-width member 23 supports the front wheel 21 at the lower end and is rotatably connected to the main link element 40 at the upper end. The full-width member 23 can be composed of, for example, a metal pipe such as an aluminum alloy, and a caster mechanism fixed to one end of the pipe and also capable of supporting the wheel rotatably and pivotally.

The first connecting member (25) is fixed to the full-width member (23). 4, each of the front wheel supporting elements 20 is pivotably attached to the rear wheel supporting element 30 located on the same side by the first connecting member 25. [ In the illustrated example, the first connecting member 25 is extended from the full-width member 23 along the inner side extending in the front-rear direction. On the other hand, the rear wheel supporting element 30 is disposed on the inner side in the width direction with respect to the front wheel supporting element 20. As shown in Fig. 4, the first connecting member 25 and the rear wheel supporting element 30 are pivotally attached by being pierced by the shaft member 28. As shown in Fig. That is, in the illustrated example, the front wheel supporting element 20 and the rear wheel supporting element 30 are directly connected. However, the present invention is not limited to this example, and the front wheel supporting element 20 and the rear wheel supporting element 30 may be indirectly connected through another member.

As can be understood from Figs. 3 and 9, each of the rear wheel supporting elements 30 rotatably holds the rear wheel 31 at a downward portion, particularly at a bottom end in the illustrated example. Each of the rear wheel supporting elements 30 has a smell member 33 functioning as a smell for rotatably supporting the rear wheel 31. [ The smell member 33 at least extends from the position for supporting the rear wheel 31 to the relative rotation center RC1 of the front wheel supporting element 20 and the rear wheel supporting element 30. [ The smell member 33 may be composed of, for example, a metal pipe such as an aluminum alloy, and a holding mechanism fixed to one end of the pipe and holding the wheel rotatably.

The smell member 33 supports the rear wheel 31 at the lower end and moves the rear wheel 31 beyond the relative rotation center RC1 of the front wheel supporting element 20 and the rear wheel supporting element 30, As shown in Fig. That is, the smell member 33 includes a rear corner portion 34 including a holding mechanism for rotatably supporting the rear wheel 31, and a relative rotation center RC1 of the front wheel supporting element 20 and the rear wheel supporting element 30 And an extending projection 35 located on the opposite side of the rear corner portion 34 with a space therebetween. 1 and 9, the sitting portion 71 of the seat 70 is attached to the extending projection 35. As shown in Fig. That is, in the illustrated embodiment, the seat support portion 30 of the seat 70 can support the sitting portion 71. Therefore, a dedicated member for supporting the sitting portion 71 of the seat 70 can be omitted. As a result, the number of parts constituting the baby carriage 10 can be reduced, and the configuration of the baby carriage 10 can be simplified and reduced in weight.

9, the angle? A formed by the portion of the extending projection 35 that supports the seat in the front-rear direction in the side view of the baby carriage in the used state is the same as the angle? Is smaller than the angle &thetas; b of the rear corner portion 34 with respect to the front-rear direction. With such a configuration, the extending projection 35 effectively functions as a frame for supporting the sitting portion 71, so that the sitting portion 71 can be supported in a proper direction.

9, the extending projection 35 is bent such that the angle formed between the extending projection 35 and the front-rear direction in the side view of the baby carriage in the used state becomes smaller at the front side. In particular, in the illustrated embodiment, the extended projection 35 is bent at the side of the baby carriage in the used state, and the extended projection end 36 and the extended projection base (base) (37). The extended projection base 37 is connected to the rear leg portion 34. The extended projecting end 36 is connected to the extended projecting base 37 from the front. The sitting portion 71 of the seat 70 is attached to an extending projection 36 having a small angle? A formed in the front-back direction.

Next, the main link element 40 constituting the main portion 51 of the handle 50 will be described. The main link element 40 has a main link portion 41 constituting a lower portion of the main portion 51 of the handle 50 and a second connecting member 43 attached to the main link portion 41 . The main link portion 41 may be constituted by a substantially U-shaped material such as an aluminum alloy pipe constituting the main portion 51 and the connecting portion 52 of the handle 50.

The second connecting member 43 is fixed to the main link portion 41 of the main link element 40. As shown in Fig. 4, each of the main link elements 40 is pivotally attached to the front wheel supporting element 20 located on the same side by a second connecting member 43. As shown in Fig. In the illustrated example, the second connecting member 43 is extended and protruded from the main link portion 41 along the inner side extending in the front-rear direction. The main link portion 41 connected to the second connecting member 43 and the full-angular member 23 of the front wheel supporting element 20 have the same arrangement position in the width direction.

4, the second connecting member 43 includes a main body portion 44 fixed to the main link portion 41 and a pair of supporting wall portions 44 extending from the main body portion 44 in the front- 45). The full-angular member 23 of the front wheel supporting element 20 is disposed between the pair of supporting wall portions 45. [ The shaft member 46 penetrates the supporting wall portion 45 of the second connecting member 43 and the full angle member 23 of the front wheel supporting member 20 so that the front wheel supporting member 20 and the main link member 40, Is pivoted. That is, in the illustrated example, the front wheel supporting element 20 and the main link element 40 are directly connected. However, the present invention is not limited to this example, and the front wheel supporting element 20 and the main link element 40 may be indirectly connected through another member.

In the illustrated embodiment, the upper end portion of the full-width member 23 is disposed between the pair of support wall portions 45 and is penetrated by the shaft member 46. 4, the end member 24 is fitted in the upper end portion of the full-width member 23 and the end member 24 is fixed to the shaft member 46 together with the full- As shown in Fig. The end member 24 has an arc-shaped outline at a side view. More specifically, the end member 24 has, at the side surface thereof, an arc centered at a position passing through the shaft member 46 of the full-width member 23, in other words, And has a contour extending along an arc centered on the relative rotation center RC2 of the arm 40. The end member 24 is provided to cover the gap between the upper end of the full-width member 23 and the main body portion 44 of the second connecting member 43, It is possible to effectively prevent the garment or the like from being stuck between the upper end of the full-width member 23 and the main body portion 44 of the second connecting member 43 at the same time.

In the illustrated embodiment, in the state of use of the baby carriage 10, the main link element 40 is positioned between the position for supporting the front wheel 21 of the front wheel supporting element 20 among the front wheel supporting element 20, Can be engaged with a portion between the support element 20 and the relative rotation center RC2 of the main link element 40. [ The main link element 40 and the front wheel supporting element 20 are engaged with each other so that the relative rotation of the main link element 40 and the front wheel supporting element 20 is regulated. More specifically, in the use state of the baby carriage 10, the upper portion of the front wheel supporting element 20 and the lower portion of the main link element 40 extend substantially in parallel with each other, At both ends of the region, the front wheel supporting element 20 and the main link element 40 can be connected to each other. The relative rotation of the main link element 40 and the front wheel supporting element 20 is regulated by connecting the front wheel supporting element 20 and the main link element 40 to each other.

As will be described later, the baby carriage body 15 is deformable between the use state and the folded state by relatively rotating each constituent element. Therefore, according to the present embodiment, the main link element 40 and the front wheel supporting element 20 can be connected to each other at two portions separated along the longitudinal direction thereof, The relative rotation of the front wheel supporting element 40 and the front wheel supporting element 20 is stably regulated and the baby carriage 10 can be stably maintained in the use state.

In particular, in the embodiment shown, the lower part of the main link element 40, in particular the lower end part of the main link element 40, is adapted to engage with the first connecting member 25 of the front wheel support element 20 . When the main link element 40 and the front wheel supporting element 20 are engaged with each other by the second connecting member 43 of the main link element 40 and the first connecting member 25 of the front wheel supporting element 20, The front wheel supporting element 20 and the main link element 40 are connected at two places so that the relative rotation of the front wheel supporting element 20 and the main link element 40 is regulated. According to this embodiment, the first connecting member 25 of the front wheel supporting element 20 serves both to connect with the rear wheel supporting element 20 and to engage with the main link element 40. [ Therefore, the number of parts constituting the baby carriage 10 can be reduced, and the configuration of the baby carriage can be simplified and reduced in weight.

5 and 6, a protruding portion 42 is provided at the lower end of the main link portion 41 of the main link element 40. As shown in Fig. The projecting portion 42 is pressed so as to protrude from the lower end of the main link portion 41. The protruding portion 42 is connected to an operating piece 41a provided at the lower end portion of the main link portion 41. By sliding the operating piece 41a against the main link portion 41, (42) can be immersed in the main link portion (41). On the other hand, as shown in Figs. 3 and 4, the first connecting member 25 of the front wheel supporting element 20 is formed with a tubular portion 26. Fig. As shown in Fig. 7, the cylindrical portion 26 is formed with a receiving hole 27 for receiving the projecting portion 42 by opening its tip. The protruding portion 42 of the main link element 40 is fitted into the receiving hole 27 of the first connecting member 25 so that the distance between the front wheel supporting element 20 and the main link element 40 Relative rotation is regulated.

The configuration for engaging the front wheel supporting element 20 and the main link element 40 is not limited to the example described herein but may be configured in various forms. The operating piece 41a is merely an example of a means for operating the projecting portion 42 and can be appropriately changed. For example, a remote operating means for operating the projecting portion 42 is provided on the connecting portion 52 of the handle 50, and the remote operating means is provided in the connecting portion 52 and the main portion 51 of the handle 50, (For example, a wire) for transmitting the operation to the protruding portion 42 may be provided.

Next, the connecting link element 60 will be described. 4 and 7, the right connection link element 60 extends between the main link element 40 and the rear wheel support element 30 disposed on the right side, and also extends from the main link element 40 40 and the rear wheel supporting element 30, respectively. Likewise, the left connecting link element 60 extends between the main link element 40 and the rear wheel supporting element 30 disposed on the left side and also extends between the main link element 40 and the rear wheel supporting element 30 As shown in Fig. Therefore, in the present embodiment, the main link element 40 is rotatably connected to the rear wheel supporting element 30 indirectly via the connecting link element 60. [ The connecting link element 60 may be made of, for example, a metal plate.

4 and 7, each connecting link element 60 is configured such that first of all the rear wheel supporting element 30 and the front wheel supporting element 20 of the rear wheel supporting element 30 And is rotatably attached to an extending projection 35 which is a side away from the rear wheel 31 relative to the relative rotation center RC1. More specifically, the connecting link element 60 is pivotally attached via the shaft member 61 to the rearward portion of the extended projecting end 36 of the extending projection 35. The relative pivotal center RC3 of the rear wheel supporting element 30 and the connecting link element 60 in the side view of the baby carriage 10 in a state of being in use is formed by the rear wheel supporting element 30 and the front wheel supporting element 20, And is located above the relative rotation center RC1.

4 and 7, each connecting link element 60 is configured such that, at a side view of the stroller 10 in use, the connecting link elements 60 are arranged in the main link portion 40 of the main link element 40 41 at a position lower than the relative rotation center RC2 of the front wheel supporting element 20 and the main link element 40. [ More specifically, the connecting link element 60 is pivotally attached via the shaft member 62 to a portion below the position where the second connecting member 43 of the main link portion 41 is attached. The relative pivotal center RC4 of the main link element 40 and the connecting link element 60 in the side view of the baby carriage 10 in the use state is set such that the relative rotation center RC4 of the rear link supporting element 30 and the connecting link element 60 And is located behind the pivot center RC3.

The baby carriage body 15 is a member that extends in the lateral direction (width direction) and includes a first front side connecting member 65 and a second front side connecting member 65 which connect between the frontal angle members 23 of the pair of front wheel supporting elements 20, And a rear side connecting member 67 for connecting the front side connecting member 66 and the rear corner portion 34 of the pair of rear wheel supporting elements 30. [ Of these, the second front side connecting member 66 functions as a footrest. The pair of front wheel supporting elements 20, the pair of rear wheel supporting elements 30, the pair of main link elements 40, and the pair of connecting link elements 60 , Respectively, when they are deformed between the use state and the folded state.

The baby carriage body 15 having the overall configuration as described above can be folded into a folded state in the use state by relatively rotating each constituent element. Concretely, first, by operating the operating piece 41a, the projecting portion 42 of the main link element 40 is released from engagement with the receiving hole 27 of the front wheel supporting element 20. With this operation, relative rotation of the front wheel supporting element 20 and the main link element 40 becomes possible.

Next, as shown in Fig. 7, a portion of the main link element 40 which extends upward from the relative rotation center RC2 of the front wheel supporting element 20 in the used state, that is, The main link element 40 is rotated with respect to the front wheel supporting element 20 in a direction in which the upper portion is collapsed to the front side. The portion of the main link element 40 extending upward from the center of rotation RC2 relative to the front wheel supporting element 20 in the in-use state approaches the rear wheel supporting element 20 by this turning operation. In other words, the end (upper end) of the main link element 40, which is the side away from the front wheel 21 in use, approaches the front wheel 21. The connecting portion 52 of the handle 50 approaches the front wheel 21 of the front wheel supporting element 20 from the front side in the side view of the baby carriage 10. [

In accordance with the operation of the main link element 40 of the main link element 40, the rear wheel support element 30 connected to the main link element 40 via the connecting link element 60 is also operated do. As described above, the connecting link element 60 is configured such that the relative rotation center RC2 of the main link element 40 between the front wheel supporting element 20 and the main link element 40, And is spaced from the rear wheel 31 from the relative rotation center RC1 of the rear wheel supporting element 30 and the front wheel supporting element 20 among the rear wheel supporting elements 30 To the extension projection 35, which is a side of the projection. 5 and 10, when the main link element 40 is pivoted about the front wheel support element 30 to approach the front wheel support element 20 so as to tilt forward, the main link element 40 And the relative rotation center RC4 of the connecting link element 60 are pulled upward. 5 and 10 so that the relative pivotal center RC3 of the connecting link element 60 and the rear wheel supporting element 30 is also lifted upwardly, (20). That is, the rear wheel supporting element 30 rotates with respect to the front wheel supporting element 20 so that the rear wheel 31 approaches the front wheel 21 along the front-rear direction by the connecting link element 60. [

The baby carriage body 15 can be folded so that the main link element 60, the front wheel supporting element 20 and the rear wheel supporting element 40 come close to each other. By folding the baby carriage body 15 in this manner, the size of the baby carriage body 15 can be reduced in both the front-back direction and the vertical direction. Since the front wheel supporting element 20 and the rear wheel supporting element 30 are relatively rotated so that the front wheel 21 and the rear wheel 31 approach each other along the forward and backward directions when folded from the use state to the folded state, The front wheel 21 and the rear wheel 22 can be grounded to make the baby carriage body 15 (baby carriage 10) in a folded state stand by itself as shown in Figs. When the baby carriage 10 can be self-supporting in the folded state, it is very preferable from the standpoint of storage space and the like.

The rear wheel 31 and the front wheel 21 are supported by the front wheel supporting element 20 in a state in which the front wheel 21 and the rear wheel 31 are grounded on the ground surface in the folded state of the baby carriage body 15, The relative rotation center RC1 of the front wheel 21 and the rear wheel supporting element 30 is set such that the grounding position of the front wheel 21 (i.e., the center of rotation of the front wheel 21) (That is, the center of rotation of the rear wheel 31). According to this configuration, the baby carriage body 15 (baby carriage 10) in the folded state can be more reliably self-sustained.

Further, in the illustrated embodiment, an engaging claw (engaging piece) 47 capable of elastically deforming is formed by a part of the second connecting member 43 which is the left side. 1 to 3, the engagement claws 47 are located above the body portion 44 of the second connecting member 43 in the use state of the baby carriage 10, . 5, the engaging claw 47 is engaged with the second connecting member 43 in the folded state of the baby carriage 10 in which the main link element 40 is rotated with respect to the front wheel supporting element 20. [ And is engaged with the upper portion of the full-width member 23 of the front wheel supporting element 20 as shown in Fig. The rotation of the front wheel supporting element 20 and the main link element 40 is restricted by the engagement of the engaging claw 47 and the full angle member 23 shown in Fig. 8, so that the baby carriage 10 is kept in the folded state .

In order to expand the baby carriage body 15 from the folded state to the used state, the reverse order of the folding operation described above may be followed.

1, an ankle 75 and a seat 70 are provided in the baby carriage body 15 having the above-described structure. The awnings 75 have one or more awning pipes 76 attached to the stroller body 15 and an awning cloth 77 attached to the awning pipe 76, do. In the illustrated example, the winning pipe 76 is formed in a substantially U-shape, and both ends of a substantially U-shape are pivotally attached to the handle 50. As the winning pipe 76 rocks with respect to the handle 50, the opening 75 is opened and closed.

On the other hand, as described above, the seat 70 includes the sitting portion 71 supported by the extending projection 35 of the rear wheel supporting element 30 and the back portion 72 extended from the sitting portion 71 And a pair of side wall portions 73 provided on the side of the sitting portion 71 and the backrest portion 72. The sitting portion 71 mainly supports the buttocks of the infant who rides on the stroller 10. On the other hand, the backrest portion 72 is disposed at a position facing the baby's back. The sidewall portions 73 are located on both sides of the baby carriage that rides on the baby carriage 10.

1, the front end portion of the sitting portion 71 of the seat 70 is attached to the extending projection 35 of the rear wheel supporting element 30, and the backrest portion 72 of the seat 70 Is attached to the main portion 51 of the handle 50 constituted by the main link element 40. [ On the other hand, as described above, when the baby carriage 10 is deformed from the use state to the folded state, the use state of the baby carriage 10 from the relative rotation center RC2 of the main link element 40 to the front wheel support element 30 The main link element 40 rotates with respect to the front wheel supporting element 20 so that the portion extending upward from the front wheel supporting element 20 collapses to the front side. At this time, the backrest portion 72 of the seat 70, which is a place where the infant is seated or lying down, is supported by the main link element 40 and operates together with the main link element 40, Faces toward the surface of the sitting portion 71 of the seat facing the infant. As a result, in the folded baby carriage 10, the back surface of the seat 70 which does not face the baby infant of the seat 70 is exposed more than the surface of the seat 70 facing the baby infant. 10, the surface of the sitting portion 71 of the seat can approach and face the surface of the seat back portion 72, and the other surface of the seat back portion 72 can be moved in the front- And is inclined toward the inside of the baby carriage 10 in the folded state and slightly downward in the vertical direction. The backrest 72 of the seat 70 and the seat 70 of the seat 70 are positioned on the surface of the seat 70, It is possible to effectively prevent foreign matter such as dust from accumulating. As a result, the seat 70 can be effectively prevented from being dirty when the baby carriage 10 is folded and stored.

The side wall portion 73 of the seat 70 is extended from the relative rotation center RC2 of the main link element 40 and the front wheel supporting element 20 in the use state And is attached to the upwardly extending portion, that is, to the main portion 51 of the handle 50. When the baby carriage rides on the seat 70 of the baby carriage 10, a force that causes the rear wheel 31 to relatively rotate the rear wheel supporting element 30 in the direction away from the front wheel 21 in the forward and backward direction is applied to the baby carriage 10 All. In the embodiment described here, such an external force can be received not only by the connecting link element 60 but also by the side wall portion 73 of the seat 70. [ That is to say, the side wall portion 73 of the seat 70 is adapted to maintain the relative position of the rear wheel supporting element 30 with respect to the main link element 40 and the front wheel supporting element 20 in the use state of the baby carriage 10 So that the stroller 10 can be improved in rigidity. Therefore, with the side wall portion 73 of the seat 70, it is possible to suppress the occurrence of warping or the like during traveling of the baby carriage 10.

1 and 9, the side wall portion 73 includes a belt-like member 73a forming an edge portion on the side apart from the sitting portion 71 and the backrest portion 72 I have. The belt-shaped member 73a is configured to have a higher tensile strength than the other portions of the side wall portion 73. [ 9, the belt-like member 73a is attached to the main portion 51 of the handle 50 made up of the extending projection 35 of the rear wheel supporting element 30 and the main link element 40 The rigidity of the baby carriage 10 can be effectively improved.

According to the present embodiment as described above, when the handle 50 is deformed in the folded state from the use state, the handle 50 rotates with respect to the front wheel supporting element 20 so as to fall to the front side, And the front wheel supporting element 20 and the rear wheel supporting element 30 are relatively rotated such that the front wheel 21 and the rear wheel 31 approach each other. Therefore, it is also possible to fold the baby carriage 10 by making the main link element 40, the front wheel supporting element 20 functioning as the front angle, and the rear wheel supporting element 30 functioning as the rear angle approach each other. In this case, the folding dimension of the baby carriage 10 can be reduced in both the front-back direction and the vertical direction.

The backrest portion 72 of the seat 70 in which the baby is seated or lying down is directly or indirectly supported by the main link element 40 to operate together with the main link element 40, The surface facing the baby sitter moves toward the surface facing the baby sitter of the seat seat portion 71. [ As a result, in the foldable baby carriage 10, the back surface of the seat 70 that does not face the infants of the seat 70 is exposed more than the surface of the seat 70 facing the infant. The front surface of the seat back portion 71 comes close to the surface of the seat backrest portion 72 and the other surface of the seat backrest portion 72 comes into contact with the front surface of the stroller 10, . The backrest 72 of the seat 70 and the seat 70 of the seat 70 are positioned on the surface of the seat 70, It is possible to effectively prevent foreign matter such as dust from accumulating.

Since the front wheel supporting element 20 and the rear wheel supporting element 30 are relatively rotated so that the front wheel 21 and the rear wheel 31 approach each other, the front wheel 21 and the rear wheel 31 are grounded, 10) can be stably self-sustaining. Therefore, the storage space of the baby carriage 10 can be saved as a space.

It is also possible to make various modifications to the above-described embodiment. Hereinafter, an example of the modification will be described with reference to the drawings. In the drawings used in the following description and the following description, the same reference numerals as those used in the above-described embodiments can be used for parts that can be configured similarly to the above- Duplicate descriptions are omitted.

Although the handle 50 has an approximately U-shaped configuration with the pair of main portions 51 and the connecting portion 52 connecting the pair of main portions 51 in the above-described embodiment, It is not limited. The handle 50 may be composed of a pair of the main portion 51 and a grip portion attached to the end portion of each main portion 51.

In the above-described embodiment, the pair of rear wheel supporting elements 30 are connected to each other via the rear side connecting member 67 at an intermediate portion or a downward portion along the longitudinal direction thereof. However, It does not. As an example, as shown in Fig. 11, the pair of rear wheel supporting elements 30 may be connected to each other via the connecting portion 39 at an upper portion thereof, in other words, at a front portion thereof. The connecting portion 39 can improve the rigidity of the baby carriage body 15 and also functions as a portion for supporting the sitting portion 71 of the seat 70. [ As a result, the running of the baby carriage 10 can be more stabilized and the ride quality can be improved.

11, the connecting portion 39 extends between the upper end portions (front end portions) of the pair of rear wheel supporting elements 30. In the example shown in Fig. The connecting portion 39 is formed integrally with a smell member 33 of the rear wheel supporting element 30 from a pipe made of metal such as aluminum alloy bent in a U shape.

11, a remote operating means 54 for releasing the engagement between the front wheel supporting element 20 and the main link element 40 is provided in the connecting portion 52 of the handle 50 . The remote operation means 54 is provided between a member for realizing the engagement between the front wheel supporting element 20 and the main link element 40, for example, the above- (For example, a wire) for transmitting the operation of the protruding portion 42 to the protruding portion 42 so that the protruding portion 42 can be operated by the remote operating means 54. [ By using this remote control means 54, deformation between the use state and the folded state of the baby carriage body 15 can be more easily performed.

In the above-described embodiment, the front wheel supporting element 20 and the main link element 40 are disposed at the outermost side in the width direction, and the rear wheel supporting element 30 is disposed at the innermost side in the width direction And the connecting link element 60 is provided at a position between the rear wheel supporting element 30 and the main link element 40 in the width direction. However, the present invention is not limited thereto. For example, as shown in Fig. 11, the front wheel supporting element 20 and the main link element 40 are arranged at the outermost side in the width direction, and at the innermost side in the width direction, the connecting link elements 60 And the rear wheel supporting element 30 may be provided at a position between the main link element 40 and the connecting link element 60 in the width direction.

More specifically, in the example shown in Fig. 11, the connecting link element 60 includes a connection extending projection 60b extending from the lower portion of the main link element 40 along the width direction, and a connection extending projection 60b And the main body portion 60a connected to the extending projection 35 of the rear wheel supporting element 30. [ The main body portion 60a extends in the front and rear direction and the extending projection 35 of the rear wheel supporting element 30 connected to the main body portion 60a is connected to the main body portion 60a of the connecting link element 60, The element 20 and the main link element 40. [ The connection extending projection 60b is extended from the main link element 40 in the width direction by the length corresponding to the thickness of at least the extending projection 35 of the rear wheel supporting element 30. [ Therefore, a sufficient gap is formed between the main body portion 60a of the connecting link element 60 and the main link element 40. The main body portion 60a of the connecting link element 60 in which the seat 70 and the clothes or the like are most likely to be curled at the time of deformation of the baby carriage body 15 and the main link element 40, 70 and clothes can be effectively avoided. As a result, deformation between the use state of the baby carriage body 15 and the folded state can be more stably performed.

11, the olfactory member 33 of the rear wheel supporting element 30 is curved or curved at the middle portion of the rear corner portion 34. In the example shown in Fig. As a result, the portion of the rear corner portion 34 that holds the rear wheel 31 is positioned outside the extending projection 35 in the width direction. According to this example, the running of the baby carriage 10 can be more stabilized.

11, the basket 85 attached to the baby carriage body 15 is indicated by a two-dot chain line.

In the above-described embodiment, the main link element 40 constitutes a part of the main portion 51 of the handle 50, but the present invention is not limited thereto. A handle 55 may be provided as a separate component from the main link element 40, as shown in Figs. 12 and 13. The baby carriage body 15 of the baby carriage 10 shown in Figs. 12 and 13 includes a front wheel supporting element 20, a rear wheel supporting element 30, a connecting link element 60, a first front side connecting member 65, A main body frame 16 having a second front side connecting member 66 and a rear side connecting member 67 and a handle 55 rotatably connected to the main body frame 16. The handle 55 is formed in a substantially U-shape. The handle 55 is rotatably connected to the main body frame 16 at a portion that is substantially at both ends of the U-shape.

The handle 55 is pivoted with respect to the main body frame 16 and rotates in the direction of the backward pressing position (front position) shown by the solid line in Figs. 12 and 13 and the back pressing position Position). The body frame 16 is provided with means (not shown) for engaging with the handle 55 and for fastening the handle 55 to the face-to-face pressing position. Further, for example, a means (not shown) for engaging the handle 55 with the handle 55 is provided on the main link element 40 of the main body frame 16 to hook the handle 55 to the back pressing position. The handle 55 is fixed to the main link element 40 at the rear side pressing position so that the handle 55 and the main link element 40 together with the front wheel supporting element 20 and the rear wheel supporting element 40, The baby carriage 10 can be deformed between the use state and the unfolded state by rotating the baby carriage 10 relative to the baby carriage 30. [

Therefore, even with such a baby carriage 10, the same operation and effect as those of the above-described embodiment can be obtained. For example, when the baby carriage 10 in a folded state is stored, the contamination of the seat 70 can be effectively prevented And the folding dimension of the baby carriage 10 can be reduced.

In the example shown in Figs. 12 and 13, the handle 55 has a lower portion, particularly a lower end portion thereof, at a side of the baby carriage 10 in a used state, Is pivotally attached to a portion below the relative rotation center (RC2) with respect to the base (20). More specifically, the pivotal center of the handle 55 and the main link element 40 coincides with the relative pivotal center RC4 of the main link element 40 and the connecting link element 60. The shaft member 62 pivotally attaching the rear wheel support element 30 and the connecting link element 60 to the main link element 40 and the connecting link element 60 by further penetrating the handle 55, The handle 55 can be pivoted.

In the above-described embodiment, the example in which the seat 70 is supported by the extending projection 35 and the main link element 40 of the rear wheel supporting element 30 is shown, but the present invention is not limited thereto. 12 and 13, a seat holding mechanism 80 is provided in the baby carriage body 15 and the backrest portion 72 of the seat 70 is held by the seat holding mechanism 80 .

12 and 13, the seat holding mechanism 80 includes a main support frame 81 connected to the baby carriage body 15, and an upper support frame 81 pivotally connected to the main support frame 81 82 and a pair of side support frames 83 disposed on both sides of the main support frame 81. [ The upper support frame 82 is swingably connected to an upper side of the main support frame 81 which is opposite to a connection point to the baby carriage body 15. [ The main support frame 81 has a substantially U-shape in which both ends are connected to the baby carriage body 15. [ 12 and 13, the rotation center of the main support frame 81 with respect to the baby carriage body 15 coincides with the relative rotation center RC4 of the main link element 40 and the connecting link element 60 .

The side support frame 83 serves as a link member and the upper support frame 82 is supported by the main support frame 30 when the main support frame 81 is collapsed against the extending projection 35 of the rear wheel support element 30. [ 81). On the other hand, when the main supporting frame 81 stands up with respect to the extending projection 35 of the rear wheel supporting element 30, the upper supporting frame 82 is divided into a substantially planar surface formed by the main supporting frame 81, The upper support frame 82 is tilted so as to extend along the upper support frame 82. Each side support frame 83 is connected to the baby carriage body 15 and the upper support frame 82 so as to be rotatable relative to each other. 12 and 13, the center of rotation of the side support frame 83 with respect to the baby carriage body 15 coincides with the relative rotation center RC2 of the main link element 40 and the front wheel supporting element 20 .

13, a reclining adjustment belt 84 secured to the left and right main link elements 40 is disposed (disposed) on the back side of the main support frame 81 The reclining adjustment belt 84 is omitted). By adjusting the length of the reclining adjustment belt 84, the rear wheel support (not shown) for supporting the seat seating surface 55 of the seat 50 of the main support frame 81, which supports the backrest portion 72 of the seat 70, The angle with respect to the extended projection 35 of the element 30, that is, the reclining angle can be adjusted.

12 and 13, when the baby carriage 10 is deformed in the folded state in the use state, the backrest portion 72 of the seat 70, which is supported by the seat holding mechanism 80, Can be operated together with the main link element 40 which supports the seat holding mechanism 80 through the seat 84 and the like. Therefore, the same operation and effect as those of the above-described embodiment can be obtained, and contamination of the seat 70 can be effectively prevented, for example, when the baby carriage 10 in a folded state is stored.

12 and 13, the main supporting frame 81 and the reclining adjusting belt 84 shown in Figs. 12 and 13, like the baby carriage body 15 shown in Fig. 15, May be provided on the baby carriage body 15 only. Even with such a baby carriage 10, the same operational effects as those of the above-described embodiment can be obtained, and contamination of the seat 70 can be effectively prevented, for example, when the baby carriage 10 in a folded state is stored. 14 and 18 show the same baby carriage body 15, but for the sake of understanding, the main support frame 81 is omitted in Figs. 17 and 18, and the reclining adjustment belt 84 is only shown in Fig. 15 Is shown.

In the above-described embodiment, the pair of connecting link elements 60 is provided. However, the present invention is not limited to this example. In the example shown in Figs. 14 to 18, the seat supporting portion 63 is provided at a position facing the buttocks of the infant riding on the baby carriage 10, and the sitting supporting portion 63 is connected to the connecting link element 60 ). The sitting portion support plate (63) is formed in a plate shape, and supports the buttocks of the infant child by a plane from below. However, a through hole may be formed in the sitting portion support plate 63 from the viewpoint of weight reduction and ventilation.

The seat support plate 63 extends in the width direction between the pair of main link elements 40, the pair of front wheel support elements 20, and the pair of rear wheel support elements 30. As can be understood from Figs. 15 and 16, both side portions of the seat support portion 63 constitute the connecting link element 60, respectively, and the main link portion 40 of the corresponding side main link element 40 And is pivotally attached to the rear wheel supporting member 30 of the corresponding side by using the shaft member 62. The shaft member 61 is pivotally attached to the rear wheel supporting member 30 of the corresponding side. The sitting support plate 63 is connected to the main link element 40 at its rear portion. The sitting portion support plate 63 has a plate-shaped main body portion 63a and a protruding support portion 63b protruding downward from the main body portion 63a in a deployed state of the baby carriage body 15. [ The seat supporting portion 63 is connected to the rear wheel supporting element 30 at the projection supporting portion 63b.

The connecting link element 60 formed by the sitting portion supporting plate 63 and the relative rotation center RC3 of the rear wheel supporting element 30 and the sitting portion supporting plate 63, And the relative rotation center RC4 of the main link element 40 are arranged at the same positions as in the above-described embodiment. Therefore, the baby carriage 10 shown in Figs. 14 to 18 can be folded in the same manner as the baby carriage in the above-described embodiment, and can exhibit the same function and effect as the baby carriage in the above-described embodiment.

In the baby carriage 10 shown in Figs. 14 to 18, the olfactory member 33 constituting the rear wheel supporting element 30 does not protrude forward beyond the pivot attachment point with the seat seating portion support plate 63 . That is, unlike the above-described embodiment, the baby carriage 10 shown in Figs. 14 to 18 is not provided with the extending projection 35 for supporting the sitting portion 71 of the seat 70. [ 14 to 18, the sitting portion 71 of the seat 70 is supported by the front portion of the body portion 63a of the sitting portion support plate 63, The backrest portion 72 of the seat 70 is supported by the main support frame 81. As shown in Fig.

By using the seat support portion 63, the rigidity of the baby carriage body 15 can be greatly improved. Further, since the configuration of the baby carriage body 15 is simplified, the folding operation of the baby carriage body 15 and the opening operation of the baby carriage body 15 can be performed smoothly. In addition, since the structure for supporting the infant under the lower side is stable, the infant can be stably mounted on the baby carriage 10 in an appropriate posture. In addition, since the sitting portion 71 of the seat 70 can be supported in the region extending in the width direction, the amount of deformation of the seat 70 between the unfolded state and the folded state can be reduced.

14 to 18, the holding body 86 is provided so as to face the face of the sitting portion supporting plate 63 opposite to the side facing the infant. The holding body 86 is formed using a flexible material, a mesh material, or the like. A receiving space 87 is formed between the holding body 86 and the sitting part support plate 63 so as to open at least backward in the deployed state of the baby carriage 10. [ The accommodation space 87 can be used as a space for accommodating small articles such as blanket and towel. From this viewpoint, the retainer 86 may be formed of a stretchable material.

The holding member 86 is attached to the seat 70 mounted on the seat supporting portion 63 or the seat supporting portion 63 at both side edges and the front edge in the deployed state of the baby carriage 10 It is preferable that they are connected. In this case, it is possible to prevent the article accommodated in the accommodating space 87 from being inadvertently dropped from the accommodating space 87. 17 and 18, in the folded state of the baby carriage 10, the opening 87a of the accommodation space 87 formed between the holding member 86 and the seat supporting portion 63 Lt; / RTI > Therefore, the baby carriage 10 can be self-sustained in the folded state, so that the receiving space 87 can be utilized even in the folded state of the baby carriage 10. [

In the modified example shown in Figs. 14 to 18, a handle 88 is provided at a rear portion of the seat supporting portion 63. [0064] The handle 88 serves as a handle for holding the baby carriage 10 when the baby carriage 10 is folded. 17 and 18, the handle 88 is protruded upward from the seat supporting portion 63 in the folded state of the baby carriage 10. As shown in Fig. Therefore, the handleability of the baby carriage 10, which can be freely folded in the folded state, can be further improved by using the handle 88. [

In order to further improve the convenience of the baby carriage 10 which is freed in the folded state, as shown by a chain double-dashed line in Fig. 17, the seat side support plate 63 is provided on the side opposite to the baby- And the load hook hook 89 may be provided.

In addition, although a few modified examples of the above-described embodiment have been described above, it is of course possible to apply a plurality of modified examples appropriately in combination.

Claims (21)

A stroller which is deformable between a use state and a folded state,
A front wheel supporting element for supporting a front wheel,
A rear wheel supporting element connected to the front wheel supporting element in a relatively rotatable manner and supporting a rear wheel,
A main link element connected to be rotatable relative to the front wheel supporting element,
And a connecting link element extending between the main link element and the rear wheel support element and being relatively rotatable relative to each of the main link element and the rear wheel support element. The method according to claim 1,
The connecting link element comprises:
Wherein the main link element is rotatably attached to a portion of the main link element which is lower than the center of rotation relative to the front wheel support element in the use state,
Wherein the rear wheel support element is rotatably attached to an extending projection that is a side away from the rear wheel relative to a center of relative rotation relative to the front wheel support element. 3. The method according to claim 1 or 2,
Further comprising: a handle connected to the main link element so as to be rotatable relative to the main link element. 3. The method according to claim 1 or 2,
Wherein the main link element constitutes a handle. 5. The method according to any one of claims 1 to 4,
Wherein when the main link element is deformed from the use state to the folded state, a portion of the main link element extending upward from the center of rotation relative to the front wheel support element in the use state collapses to the front side, And a portion of the main link element extending upward from the center of rotation relative to the front wheel supporting element approaches the front wheel supporting element. 6. The method according to any one of claims 1 to 5,
Wherein the front wheel supporting element and the rear wheel supporting element are relatively rotated such that the front wheel and the rear wheel approach each other when deformed from the use state to the folded state. 7. The method according to any one of claims 1 to 6,
Wherein the main link element is capable of engaging with a portion of the front wheel support element which is located between a position for supporting the front wheel of the front wheel support element and a relative rotation center of the front wheel support element and the main link element,
Wherein the relative rotation of the main link element and the front wheel support element is regulated by engagement of the main link element and the portion of the front wheel support element. 8. The method according to any one of claims 1 to 7,
Wherein the front wheel supporting element has a front leg member at least extending between a center of rotation relative to the main link element and a position for supporting the front wheel and a connecting member provided to the front wheel member,
Wherein the rear wheel supporting element is rotatably attached to the connecting member,
Wherein the main link element is capable of engaging with the connecting member and the relative rotation of the main link element and the front wheel supporting element is regulated by engaging the main link element and the front wheel supporting element. 9. The method according to any one of claims 1 to 8,
A seat supporting plate is provided which faces the buttocks of the infant who rides in the stroller,
Wherein the connecting link element is formed by a seat support plate. 10. The method of claim 9,
The main link elements are provided on both sides of the seat support portion,
And the rear wheel supporting elements are respectively installed on both sides of the seat supporting portion support plate,
The front wheel supporting elements are provided on both sides of the seat supporting portion support plate,
Wherein both side portions of the seat supporting plate constitute the connecting link element and are connected to be rotatable relative to the main link element on the corresponding side and the corresponding rear side wheel supporting element,
Wherein each of the front wheel supporting elements is connected so as to be rotatable relative to the corresponding one of the main link element and the corresponding rear wheel supporting element. 11. The method according to claim 9 or 10,
The holding body is arranged to face the face of the seat supporting portion support plate opposite to the side facing the infant seat,
Wherein a receiving space is formed between the retaining body and the seat supporting portion support plate at least in a rearwardly deployed state of the baby carriage. 12. The method according to any one of claims 9 to 11,
And a handle is provided at a rear portion of the seat supporting portion support plate. 13. The method of claim 12,
And the handle protrudes upward from the seat supporting portion support plate in a folded state of the baby carriage. As a deformable stroller between the use state and the folded state,
A front wheel supporting element for supporting a front wheel,
A rear wheel support element that supports the rear wheel and is relatively rotatable with the front wheel support element,
And a handle rotatable relative to the front wheel support element and the rear wheel support element,
The handle and the front wheel supporting element are brought into close contact with each other when the front wheel and the rear wheel are deformed from the use state to the folded state, Wherein the front wheel supporting element and the rear wheel supporting element relatively rotate. 15. The method according to any one of claims 1 to 8 and 14,
Further comprising a seat having a seat portion and a back portion connected to the seat portion,
The rear wheel supporting element has an extending projection that extends beyond the center of relative rotation with the front wheel supporting element and that is extended from the side supporting the rear wheel,
And the seat is supported by the extending projection. 16. The method of claim 15,
An angle formed by the portion of the extending projection that supports the seat in the front-rear direction is a distance between a position for supporting the rear wheel of the rear wheel supporting element and a position for supporting the rear wheel, And a portion located between the centers of the relative rotations is smaller than an angle formed in the forward and backward directions. 17. The method according to claim 15 or 16,
Wherein the extending projection is bent such that the angle formed in the front-rear direction in the side view in the use state is reduced at the front side. 9. The method according to any one of claims 1 to 8,
Further comprising a seat having a sitting portion, a backrest portion connected to the sitting portion, and a side wall portion provided on a side of the sitting portion and the back portion,
The rear wheel supporting element has an extending projection that extends beyond the center of relative rotation with the front wheel supporting element and that is extended from the side supporting the rear wheel,
Wherein the side wall portion of the seat is attached to the extending portion and a portion of the main link element extending upward from the center of rotation relative to the front wheel support element in the use state. 15. The method of claim 14,
Further comprising a seat having a sitting portion, a backrest portion connected to the sitting portion, and a side wall portion provided on a side of the sitting portion and the back portion,
The rear wheel supporting element has an extending projection that extends beyond the center of relative rotation with the front wheel supporting element and that is extended from the side supporting the rear wheel,
Wherein the side wall portion of the seat is attached to a portion extending upward from the center of relative rotation between the extending projection and the front wheel support element of the handle. 15. The method according to any one of claims 1 to 14,
The relative pivot centers of the front wheel supporting element and the rear wheel supporting element are set such that the relative pivot center of the front wheel supporting element and the rear wheel supporting element is in a range from the grounding position of the front wheel to the grounding face of the front wheel And the rear wheel is positioned between the ground positions. 21. The method according to any one of claims 1 to 20,
Wherein the baby carriage is capable of self-standing in the folded state.

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