JPS6239362A - Seat side surface wall of baby carriage - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application This invention relates to side walls of a baby carriage seat, which are located on each side of the baby carriage seat and stand up to sandwich the seat from both sides. This concerns the folding structure of the side walls.

Background of the Invention When we look at the evolution of baby carriages with a focus on seats, we can see that the so-called box-type strollers have become mainstream, and the so-called chair-type ones have become mainstream, and strollers with chair-shaped seats still remain the mainstream. . The reason behind the switch from a box-type stroller to a chair-type stroller was to make the stroller lighter and more compact when folded.

A chair-shaped baby carriage is convenient to use, but the space available for its seat is limited. As a result, the seats have also become smaller, making it difficult to comfortably seat or sleep infants on them.

Thus, from the infant's point of view, it is undeniable that the baby carriage is preferably equipped with a box-shaped seat or a seat of comparable size. Therefore, as a frame structure of a baby carriage, which can advantageously mount such a relatively large seat and which can be folded into a relatively compact size, the structure shown in FIGS. 24 and 25 is considered.

FIGS. 24 and 25 are diagrams showing the form of the baby carriage as seen from the side. In FIG. 24, which shows the baby carriage in an open state, 1 is a front leg and 2 is a rear leg, and one pair of each of the front legs 1 and the rear legs 2 are provided. Front legs 1
A schematically shown front wheel 3 is rotatably mounted on the lower end of the , and a rear wheel 4 is likewise rotatably mounted on the lower end of the rear leg 2 . A seat (not shown) is positioned to extend between the front legs 1 and the rear legs 2. The seat may extend further forward and rearward than the front legs 1 and rear legs 2. Side frames 5 are located on each side of this seat. Each side frame 5
extend between each of the front legs 1 and the hind legs 2 on the corresponding side.

As shown in FIG. 25, the side frame 5 is configured to be bendable within each side of the baby carriage.

Therefore, when the side frame 5 is in the extended state, the front leg 1
and the corresponding rear leg 2 move away from each other to realize the open state of the baby carriage as shown in FIG. On the other hand, when the side frame 5 assumes the folded state, each of the front legs 1 and the corresponding rear legs 2 approach each other, realizing the closed state of the baby carriage as shown in FIG. 25.

In FIGS. 24 and 25, the side frame 5 is constituted by two side bars 6.7 which can themselves be bent.

These side rod members 6.7 are each pivotally connected at both ends to each of the front legs 1 and to the rear legs 2 on the corresponding side.

Note that the push rod 8 for pushing the baby carriage can be provided as a separate member or integrated with the rear legs 2, for example, in a state where they are mechanically fixed.

Problems to be Solved by the Invention When the seat is provided from the front legs 1 to the rear legs 2, as in the baby carriage shown in FIGS. It is preferable that a seat side wall 9, which stands upright, is provided as shown in phantom lines. Such a side wall 9 hides a relatively unsightly part of the frame structure of the baby carriage, which is advantageous in terms of design, and if the side wall 9 is made of, for example, a plastic molded product, it will give a remarkable aesthetic effect to the whole baby carriage.

The side wall 9 allows the folding operation of the baby carriage.
For example, it is divided into first and second side plates 10.11 that extend in the front direction of the baby carriage. Then, it is attached to, for example, the lower side bar member 7 so as to be displaced following the folding operation of the baby carriage.

However, in this way, the first and second side plates 10
．． 11 is attached to the other side bar member 7, in the closed state of the baby carriage, each side plate 7o is attached to the other side bar member 7, as shown in FIG.
, 71 end up in a state in which they each protrude relatively largely in the front direction of the baby carriage. This hinders the compactness of the baby carriage in the closed state. In addition,
If each side plate 10.11 were attached to the upper side bar member 6, the first side plate 10 and the second side plate 11 would collide with each other as the folding operation of the stroller progresses, resulting in the collapse of the stroller. Makes folding motion impossible.

Therefore, as described above, in the case where the side wall includes first and second side plates that are continuous in the front-rear direction of the baby carriage, it is an object of the present invention to provide a structure that allows these side plates to be folded compactly. .

SUMMARY OF THE INVENTION The present invention is a baby carriage seat side wall that is located on each side of the baby carriage seat and stands up to sandwich the seat from both sides. The details will be explained based on FIGS. 1 to 3.

1 and 2, a stroller substantially similar to the stroller shown in FIGS. 24 and 25 is shown pictorially from the side. Such a baby carriage is provided with a seat side wall 12. The side wall 12 includes first and second side plates 50, 51 that extend in the front-rear direction of the baby carriage. The first and second side plates 50° 51 are rotatably connected to each other by a pivot M13 facing in the width direction of the baby carriage and located at a predetermined distance from the upper or lower side of each side plate 50° 51. Ru. The illustrated pivot shaft 13 is connected to each side plate 50.51.
It is located midway between the top and bottom sides of , and slightly closer to the bottom side.

The structure near the pivot shaft 13 is shown in FIG. 3, which is an enlarged sectional view taken along line A--A in FIG. 1. 1st and 2nd
The side plates 50, 51 are rotatably connected to each other by the pivot shaft 13 and are connected to be movable relative to each other in the axial direction of the pivot shaft 13. That is, in the illustrated embodiment, the first side plate 50 can be relatively displaced upward in the figure from the second side plate 51. Although the attachment structure of the side wall 12 to the baby carriage body is not illustrated in FIGS. 1 and 2, when the side wall 12 is in the open state shown in FIG. In the closed state shown in FIG. 2, the side plates are rotated approximately 90 degrees so that they are aligned parallel to each other. As shown in FIG. 2, when the first and second side plates 50.51 are rotated relative to each other around the pivot shaft 13,
1 are placed on top of each other. That is, in the illustrated embodiment, the second side plate 51 is the first side plate 5.
0, and is relatively displaced in the axial direction of the pivot shaft 13.

In a preferred embodiment of the invention, springs 14 bias the first and second side plates 50, 51 into alignment with each other.
Equipped with The spring 14 is, for example, a compression spring, and is provided so as to surround the pivot shaft 13 . In this preferred embodiment, the pivot shaft 1 of the first and second side plates 50.51
The relative axial displacement of 3 is achieved against the elasticity of the spring 14.

Further, in a further preferred embodiment of the present invention, the first and second side plates 50.51 are relatively aligned with the axis of the pivot shaft 13 in accordance with the mutual rotation of the first and second side plates 50.51. It is provided with a guide means for displacing in the direction. This guide means
For example, the pair of slopes 15a, 1 shown in FIG.
It is 5b.

These slopes 15a and 15b form the first and second side plates 5.
0.51 of each mutually opposing edge, and is formed at each edge where the first and second side plates 50, 51 begin to overlap due to rotation. In the illustrated embodiment, the first and second side plates 5 are located below the pivot shaft 13 in FIG.
Such slopes 1 are provided on each of the mutually opposing edges of 0 and 51.
5a and 15b may be provided.

Function The seat side wall 12 of the present invention has its first and second side plates 50 and 51 aligned in the front-rear direction of the baby carriage when the baby carriage is open as shown in FIG.

Further, as shown in FIG. 2, when the baby carriage is closed, the first and second side plates 50, 51 are rotated relative to each other around the pivot shaft 13, and in the axial direction of the pivot shaft 13. , and the first and second side plates 50 .
51 are overlapped with each other, and the side plates 5
0.51 is prevented from protruding outward from the baby carriage in the folded state.

Embodiment FIGS. 4 and 5 show only a side view of the frame structure of a baby carriage to which an embodiment of the present invention is to be adopted, and FIG. Figure 5 shows the closed state.

In the baby carriage shown here, in the open state, the side frame 5 is in an extended state, and the distance between the front legs 1 and the rear legs 2 is maintained wide. On the other hand, in the closed state, the side frame 5 is in an extended state. It is basically the same as the baby carriage shown in FIGS. 1 and 2 in that it is bent so that the front legs 1 and the rear legs 2 are brought close to each other.

Therefore, similar reference numerals will be used for parts corresponding to those shown in FIGS. 1 and 2.

Further, the following description will be made with the baby carriage in an open state unless otherwise specified.

The front legs 1 and the rear legs 112 are opened in an inverted V-shape, and the front wheels 3 and the front wheels 4 are rotatably attached to the lower ends of each. In particular, the front wheel 3 is
However, it is preferable to attach it via casters 24.

The side frame 5 includes a lower side rod member 16 and a lower side rod member 17 that are arranged vertically and are bendable themselves.

The upper side rod member 16 has a bending point 25 at its center. At a position separated by a predetermined distance on both sides of this bending point 25, the upper ends of the front legs 1 and the rear legs 2 are connected to the pivot point 26.
．． It is rotatably connected to the lower side rod member 16 via 27.

The upper end portions of interlocking links 22a, 22b are rotatably connected to the portions of the upper side bar member 16 that roughly protrude from the pivot points 26.27 via pivot points 28.29.

Tension rods 18 are provided at both ends of the upper side rod member 16, respectively.
, 19 are rotatably connected via pivot points 30, 31.

One end of the reversing rod 20.degree. 21 is rotatably connected to the lower end of the tension rods 18, 19 via pivot points 32, 33. The other end of the reversing rod 20.21 is connected to the pivot point 34.35.
It is rotatably connected to the front leg 1 or the rear leg 2 via.

The lower side rod member 17 has a bending point 36 at its center. At a predetermined distance fH on both sides of this bending point 36, the above-mentioned interlocking link 22a.

The lower end of 22b is rotatably connected to the lower side rod member 17 via pivot points 37,38.

Both ends of the lower side rod member 17 are connected to each reversing rod 20, respectively.
．． It is rotatably connected to the reversing rods 20, 21 and the tension rods 18, 19 through the aforementioned pivot points 32, 33 at one end of the rods 21, respectively.

Note that, although the lower side bar members 17 are provided on the left and right sides of the baby carriage, the left and right lower side bar members 17 may be constituted by an integral member.

A locking rod 23 is passed between at least one of the front legs 1 and the corresponding rear leg 2.

The D-tuck rod 23 has a bending point 39 at its center. The locking rod 23 is connected to the front leg 1 via the pivot point 40.41.
It is rotatably connected to F3 and rear leg 2. This lock rod 23 is configured so that bending is selectively prohibited, and unless the lock rod 23 is bent, the fifth
The structure is such that the closed state shown in the figure cannot be obtained. The operation of prohibiting bending or allowing bending of the lock rod 23 is performed by the operating lever 85, but such a mechanism is not directly related to the gist of the present invention, so it will not be discussed here. The above explanation will be omitted.

A footrest 43 is shown below the lower side bar member 17. This footrest 43 is held suspended from the lower bar member 17 via suspension links 44 and 45. The suspension links 44, 45 are connected to the pivot point 46 for the footrest 43.
．． 47, and is rotatably connected to the lower side rod member 17 via pivot points 48, 49.

Figures 6 and 7 correspond to Figures 4 and 5, respectively, and show the baby carriage in a completed state with the seat, seat side wall 12, etc. attached. .

The configuration regarding the seat side wall 12 will be described later with reference to FIGS. 8 to 23.

To briefly explain the seats with reference to FIG. 6, this baby carriage has two independent seats, namely, a front seat 6.
0 and a rear seat 61 are provided. each seat 6
0.61 comprises a seat part 62.63 and a back part 64.65 as schematically shown. Backrest part 64.6
Although illustration of a specific mechanism is omitted, 5 is configured to be reclinable by a well-known mechanism. In FIG. 6, the backrest portion 64 is shown in a reclined state, and the backrest portion 65 is shown in an upright state.

Side walls 66 are provided on each side of the backrest portion 64,65.
．． 67 is formed.

The tip portion 68.6 of the seat portion 62.63 of each seat 60.61
9 is shown in a downwardly hanging position in FIG. These tip portions 68 and 69 are, for example,
A mechanism such as that described in Japanese Patent No. 8-32067 allows the seat portion 6 to be placed in a horizontal position.
2.63.

Therefore, this baby carriage is capable of several types of use in relation to the seat, as follows.

First, in both the front seat 60 and the rear seat 61, the eight backrests 64 and 65 are raised, allowing two infants to sit facing each other. At this time, it is possible to place the feet on the footrest 43 with the tip portions 68, 69 of the seats 62, 63 hanging down, or to sit with the tip portions 68, 69 in a horizontal position and the legs stretched out. You can also do it. Furthermore, in these conditions, it is also possible for a single infant to monopolize the front seat 60 and the rear seat 61.

Next, both the front seat 60 and the rear seat 61 can be used with the backrest portions 64 and 65 in the reclined state and the tip portions 68 and 69 in the horizontal state. Seats 60.61 then provide the widest series of spaces. In this state, the seats 60, 61 may be occupied by one infant or may be used by two infants.

Furthermore, the backrest portions 64 or 65 of either the front seat 60 or the rear seat 61 may be in an upright position, and the other backrest portion 65 or 64 may be in a reclined state. In this case, the tip portion 68
．． 69 can be used in any manner, such as by placing both in a horizontal state, only one of them in a horizontal state, or both in a hanging state. Also in this case, the seats 60, 61 can be used by two infants or one infant.

The seat side wall 12 has a first side plate 5 as shown in FIG.
0 and a second side plate 51, which are continuous in the front direction of the baby carriage and are connected to each other at a pivot portion 52. Such first and second side plates 50.51
In order to attach the mounting pins 53a, 53 fixed near both ends of the upper bar member 16 as shown in FIG.
bS and a flexure link 54 connected between each m1 leg 1 and the corresponding rear leg 2 is used. The bending link 54 has a pivot shaft 1 corresponding to the pivot shaft 13 of the front j-ho in its center.
3, and is configured to be bendable via this pivot shaft 13. Both ends of the bending link 54 are rotatably connected to the front leg 1 and the rear leg 2 via pivot points 55 and 56, respectively.

As is clear from a comparison between FIG. 4 and FIG. 6, the pivot shaft 13 located at the center of the bending link 54 is located within the pivot portion 52. Additionally, mounting pins 53a, 53b extend through each side plate 50.51. When the baby carriage changes from the open state to the closed state, the front legs 1 and the rear legs 2 approach each other and their opening angle is reduced, so the bending link 54 is reversed as shown in FIG. It will be in a V-shaped bent state. Here, the pivot shaft 13 located at the center of the bending link 54 is relatively displaced upward. On the other hand, when the baby carriage is closed, the upper side rod member 16 is also bent into an inverted V shape. Therefore, the attachment pins 53a and 53b provided near both ends of the upper rod member 16 are displaced to a relatively lower position. Along with the displacement of these pivot shafts 13 and mounting bins 53a, 53b, the first and second side plates 50, 51+,
! , as shown in FIG. 7, is rotated to extend vertically.

Hereinafter, details of the first and second side plates 50, 51 and configurations related thereto will be described.

In FIG. 8, a part of the first side plate 50 is shown enlarged, and a portion through which the aforementioned mounting pin 53a passes is shown. FIG. 9 shows a cross-sectional view of the relationship between the portion of the first side plate 50 shown in FIG. 8 and the upper side rod member 16.

As shown in these drawings, an oval recess 70 extending laterally is formed in the first side plate 50.
There is also an oblong long hole 71 extending laterally in the bottom wall of the
is provided. The aforementioned attachment pin 53 a extends through the elongated hole 71 and extends into the recess 70 . Mounting bin 53
In a, a sleeve 72 is engaged with the spring receiver in the recess A 0 , and a compression spring 73 is disposed between the sleeve 72 and the bottom surface of the recess 70 . The action of the compression spring 73 forces the first side plate 50 so that the bottom wall of the recess 70 contacts the side surface of the upper rod member 16 . However, in this state, the mounting bin 53
The first side plate 50 can move relative to the upper side rod member 16 to the extent that a can move within the elongated hole 71.

The configuration shown in FIG. 8 is also applied to the second side plate 51. That is, as shown in FIG. 10, the second side plate 51 is formed with an oval recess 74 extending laterally, and the bottom wall thereof is formed with an elongated hole 75 through which the attachment pin 53b passes. has been done. The mounting bin 53b has
A sleeve 76 is engaged with the spring receiver, and a compression spring 77 is disposed between the sleeve 76 and the bottom surface of the recess 74 .

In the configuration on the second side plate 51 side shown in FIG. 10, the spring receiver is the sleeve 76, and the spring receiver in FIG. 9 is the sleeve 72.
It is notable that it has been made shorter. by this,
The second side plate 51 is not only movable by resting on the side surface of the upper rod member 6 within the range in which the receptacle 53b can move within the elongated hole 75, but also in the direction away from the upper rod member 16.
It can be displaced over a relatively large range. That is, the second side plate 51 is attached so as to be displaceable in the width direction of the baby carriage.

11 to 14 show an enlarged view of a portion of the first side plate 5° corresponding to the pivot portion 52 (FIG. 6). When FIG. 11 is a front view, FIG. 12 is a left side view, FIG. 13 is a sectional view taken along line B-8 in FIG. 11, and FIG. 14 is a bottom view.

A partially cylindrical inner circumferential surface 78 is formed at a location corresponding to the pivot portion 52 of the first side plate 50 . One end surface of this partially cylindrical inner circumferential surface 78 is closed by a bottom wall 79 . A circular through hole 80 for receiving the aforementioned pivot shaft 13 is provided at the center of the bottom wall 79. In addition, a partially cylindrical inner peripheral surface 78
A spiral slope 81 is formed extending inward from the base.

Further, a slope 82 is formed at the edge of the first side plate 50 facing the second side plate 51 and at a position below the partially cylindrical inner circumferential surface 78 . This slope 82 corresponds to the slope 15a or 15b shown in FIG.

15 to 18 show enlarged portions of the second side plate 51 corresponding to the pivot portions 52 (FIG. 6). When FIG. 15 is a front view, FIG. 16 is a left side view, FIG. 17 is a sectional view taken along line CC in FIG. 15, and FIG. 18 is a bottom view.

A cylindrical outer circumferential surface 83 that matches the partially cylindrical inner circumferential surface 78 described above is formed in a portion of the second side plate 51 corresponding to the pivot portion 52 . The cylindrical outer peripheral surface 83 has a space 8 inside thereof.
form 4. A bottom wall 86 forming one end surface of the cylindrical outer circumferential surface 83 has a pivot shaft 13 aligned with the through hole 80 described above.
A circular through hole 87 is provided for receiving the. A spiral slope 88 is formed on the cylindrical outer circumferential surface 83 to form a pair with the spiral slope 81 described above. Reference number "88" in Figure 15
The location indicated by is the opposite surface of the spiral slope 88. A step 89 is formed at the periphery of the opening of the space 84 formed inside the cylindrical outer circumferential surface 83 .

Further, at the edge of the second side plate 51 facing the first side plate 50 and at a position below the cylindrical outer circumferential surface 83, a slope 90 that pairs with the slope 82 described above is formed. .

19 to 21 show an enlarged view of the structure around the pivot portion 52 in a state where the first side plate 50 and the second side plate 51 are combined.

When FIG. 19 is a front view, FIG. 20 is a sectional view taken along line DD in FIG. 19, and FIG. 21 is a bottom view.

As clearly shown in FIG. 20, the cylindrical outer circumferential surface 83 of the second side plate 51 is fitted into the partially cylindrical inner circumferential surface 78 of the first side plate 50. As shown in FIG. At this time, the pair of spiral slopes 81, 88 are placed in contact with each other. The pivot shaft 13 is passed through the through holes 80 and 87 that are aligned with each other, and a washer 91 is engaged with the pivot shaft 13 in the space 8.1. A compression spring 92 is disposed between the bottom wall 86 and the bottom wall 86 . As a result, the first side plate 50 and the second side plate 51 are urged to be aligned with each other.

A circular lid 93 is fitted into the stepped portion 89, and the space 84 is closed.

As shown in FIGS. 20 and 21, the above-mentioned bending link 54 consists of two
It consists of book sticks 57.58.

As mentioned above, the 113 and second side plates 50 and 51 support the pivot shaft 1 that occurs when the stroller is about to be closed.
3 and the mounting pins 53a and 53b.
Due to the relatively downward displacement of , the state shown in FIG. 7 is obtained. FIGS. 22 and 23 show the vicinity of the pivot portions 52 of the first and second side plates 50, 51, and correspond to a state in which the baby carriage is in the process of changing from an open state to a closed state. Here, FIG. 22 is a view shown from the same angle as FIG. 19, and FIG. 23 is along the line E-E in FIG. 22.
FIG.

When the first and second side plates 50.51 are rotated relative to each other about the pivot shaft 13, the second side plate 51 is displaced in the axial direction of the pivot shaft 13 with respect to the second side plate 50. Ru. In this embodiment, there are the following two types of means for guiding such displacement.

First of all, the pair of spiral slopes 81 described above
．． It is 88. Guided by these spiral slopes 81° 88, the cylindrical outer circumferential surface 83 is guided by the partially cylindrical inner circumferential surface 78.
When rotated relative to 7j, the spiral slope 81
．． 88, and the cylindrical outer circumferential surface 83 is displaced in the direction of escape from the partially cylindrical inner circumferential surface 78.

Secondly, the slopes 82.90 formed on the opposing edges of the first and second side plates 50.51 act as guide means, so that the second side plate 51 rests on the first side plate 50. be put into a state.

Therefore, as shown in FIG. 7, when the baby carriage is in the closed state, the second side plate 51 rests on the first side plate 50, and each part of the first and second side plates 50,51 can be placed in a compact state where they overlap each other.

The above-mentioned displacement of the second side plate 51 in the axial direction of the pivot shaft 13 also occurs at the location of the take-up pin 53b. Here, the support reduces the distance between the sleeve 76 and the bottom surface of the recess 74 against the elasticity of the compression spring 77, thereby allowing the pivot shaft 13 to be displaced in the axial direction.

In addition, the state of the baby carriage shown in Fig. 6 and the state shown in Fig.
Each mounting bin 53a in the closed state of the baby carriage,
53b and the first and second side plates 50.degree. 51 on the side surface of the baby carriage.
3b can be absorbed by moving within each elongated hole 71, 75.

As shown in FIG. 23, the second side plate 51 is connected to the first side plate 5.
0 in the axial direction of the pivot shaft 13, the compression spring 92 is placed in a compressed state and the first and second
The side plates 50 and 51 of the side plates 50 and 51 are continuously biased to be aligned with each other. Therefore, if the baby carriage is changed from the closed state to the open state, the first and second side plates 50, 51 will be automatically moved when the baby carriage is finally brought into the open state as shown in FIG. are brought into alignment with each other.

Although the invention has been described above in connection with the illustrated embodiment, several other embodiments are possible.

For example, the pair may be used as a guide means for relatively displacing the first and second side plates 50°1 in the axial direction of the pivot shaft 13 in accordance with the mutual rotation of the first and second side plates 50 and 51. A spiral slope 81.88 and a pair of slopes 82
．． 90, but only one of them may be used.

Moreover, since such a guide means is for making the operation convenient, it does not need to be provided in particular. In this case, the first and second side plates 50, 51 may be relatively displaced in the axial direction of the pivot shaft 13 by the person himself/herself.

Similarly, the springs 92 biasing the first and second side plates 50.51 into alignment with each other are also two for convenience of operation and may also be omitted. Further, even when a spring is provided, it is not limited to a coiled compression spring, and may be replaced with other spring means.

Furthermore, the baby carriage to which the present invention is applied is not limited to the baby carriages shown in FIGS. 1 and 2, or the baby carriages shown in FIGS. 4 to 7. In short, the present invention can be applied to any type of baby carriage as long as the seat side wall of the baby carriage can be folded in response to the folding operation of the baby carriage.

Furthermore, since the baby carriage is not limited to those shown in FIGS. 4 to 7 as described above, the first and second side plates 50.5
1 to the baby carriage body does not necessarily need to be movable in the direction in which the side plates 50.degree.

Effects of the Invention As described above, according to the present invention, the first and second side plates constituting the side walls of the seat of the baby carriage are oriented in the width direction of the baby carriage and spaced a predetermined distance from the top or bottom of each side plate. Since the first and second side plates are connected to each other so as to be rotatable and relatively displaceable in the axial direction of the pivot shaft by the pivot shaft located on the mushroom, the first and second side plates can be moved around the pivot shaft. When the first and second side plates are rotated relative to each other, portions of the first and second side plates overlap each other. Therefore, if such a mechanism is applied to a folding baby carriage, the side wall of the seat can be made compact in the closed state of the baby carriage.

[Brief explanation of the drawing]

Figures 1 to 3 are diagrams for explaining the basic principle of the present invention, in which Figure 1 is a line diagram showing the open state of the baby carriage from the side, and Figure 2 is a diagram showing the baby carriage in the closed state. FIG. 3 is a diagram showing the state from the side, and FIG. 3 is an enlarged sectional view taken along line A-A in FIG. 1. 4 and 5 are side views showing the parent structure of the baby carriage to which the present invention is applied, with FIG. 4 showing the baby carriage in an open state and FIG. 5 showing the baby carriage in a closed state. 6 and 7 are side views showing a state in which the seat side wall 12 and the like are attached to the frame of the baby carriage shown in FIGS. 4 and 5;
The figure shows the open state, and FIG. 7 shows the closed state. FIG. 8 shows an enlarged view of the location where the elongated hole 71 of the first side plate 50 is provided. FIG. 9 is a sectional view showing a location where the first side plate 50 is attached to the upper side rod member 16. 10th
The figure is a cross-sectional view that does not show the location where the second side plate 51 is attached to the upper side rod member 16. 11 to 14 are views showing the vicinity of the pivot portion 52 (FIG. 6) of the first side plate 50, and when FIG. 11 is a front view, FIG. 12 is a left side view, FIG. 13 is a sectional view taken along line B-8 in FIG. 11, and FIG. 14 is a bottom view. 15 to 18 are views showing the vicinity of the pivot portion 52 (FIG. 6) of the second side plate 51, and when FIG. 15 is a front view, the 76th
The figure is a left side view, FIG. 17 is a sectional view taken along line CC in FIG. 15, and FIG. 18 is a bottom view. 19 to 21 show a state in which the first and second side plates 50, 51 are connected, and when FIG. 19 is a front view,
FIG. 20 is a sectional view taken along line DD in FIG. 19, and FIG. 21 is a bottom view. 22 and 23 show the state after the first and second side plates 50, 51 have been rotated, FIG. 22 is a front view, and FIG. 23 is a line E-- in FIG. 22. It is a sectional view along E. 24 and 25 are diagrams showing the baby carriage from the side for explaining the present invention in detail. FIG. 24 shows the baby carriage in the open state, and
Figure 5 shows the closed state. In the figure, 1 is the front leg, 2 is the rear leg, 5 is the side frame, 6.7
12 is a side bar member, 12 is a seat side wall, 13 is a pivot shaft, 14 is a spring, 15a, 15b are slopes, 16 is an upper side bar member, 5
0 is the first side plate, 51 is the second side plate, 52 is the pivot portion, 5
3a, 53b are mounting bins, 54 is a bending link, 71.
75 is a long hole, 72° 76 is a sleeve for the spring receiver, 73, 7
7.92 is a compression spring, 78 is a partially cylindrical inner peripheral surface, 80.
87 is a through hole, 81.88 is a spiral slope, 82.90 is a slope, and 83 is a cylindrical outer peripheral surface.

Claims (7)

[Claims] (1) Side walls of the seat of the baby carriage that are located on each side of the seat of the baby carriage and stand up to sandwich the seat from both sides, and the side walls include first and second walls that extend in the front and back direction of the baby carriage. side plates, the first and second side plates are rotatable by pivot shafts facing in the width direction of the baby carriage and located at a predetermined distance from the top or bottom of each side plate; Each of the first and second side plates is connected to each other so as to be relatively displaceable in the axial direction of the shaft, so that when the first and second side plates are rotated relative to each other about the pivot shaft, each of the first and second side plates characterized in that some parts overlap each other,
Baby carriage seat side wall. (2) The baby carriage seat side wall according to claim 1, further comprising a spring that urges the first and second side plates to align with each other. (3) The scope of the present invention further comprises a guide means for relatively displacing the first and second side plates in the axial direction of the pivot shaft in accordance with mutual rotation of the first and second side plates. 1st
The side wall of the seat of the baby carriage according to item 1 or 2. (4) The guide means is a pair of spiral slopes formed on each portion of the first and second side plates around the pivot shaft, respectively. Baby carriage seat side wall. (5) The guide means is a pair of slopes formed at each end edge of the first and second side plates facing each other and which begin to overlap due to the rotation. The side wall of the seat of the baby carriage described in Scope 3. (6) The baby carriage provided with the seat side wall has a pair of front legs, a pair of rear legs, and is located on each side of the seat and extends between each of the front legs and the corresponding rear leg. 1
and a pair of side frames, each side frame being configured to be bendable within each side of the baby carriage, and the first and second side plates being formed by bending points of each side frame. A baby carriage seat side wall according to any one of claims 1 to 5, which is held in each divided part. (7) At least one of the first and second side plates,
The baby carriage seat side wall according to claim 6, which is attached to the side frame so as to be displaceable in the width direction of the baby carriage.