JPH0212787B2 - - Google Patents

Description

[Detailed Description of the Invention] Field of the Invention This invention relates to a baby carriage bed.
In particular, the present invention relates to a stroller bed that is deformable so that the part of the stroller on which an infant is placed basically takes the form of a bed and can optionally take the form of a chair.

Description of the Prior Art Baby carriages, at least in the early days in which they were proposed, were of the so-called "box type".
In this type of stroller, infants were placed comfortably in a baby carriage while lying down.
Therefore, it was favorable for infants' development and was excellent in livability. However, as the times changed, this way of thinking that placed importance on the infant's position gradually faded, and emphasis began to be placed on convenience as a means of transporting infants. For example, chair-shaped baby carriages have become mainstream, and moreover, foldable and compact baby carriages have become popular for the purpose of transportation. This was an inevitable result of various changes in lifestyles, and was also a requirement of the times.

As mentioned above, it cannot be denied that pursuing convenience as a means of transporting infants is an important point in the development of baby carriages. However, it seems necessary to go back to the basics and reconsider the structure of a baby carriage that does not impair the growth or comfort of infants and is convenient to use.

Purpose of the Invention As mentioned above, the purpose of the present invention is to provide a baby carriage bed that does not impair the growth or comfort of infants. According to this invention, the bed can also be transformed into a chair shape for convenient use.

Summary of the Invention The present invention is a so-called "box type" baby carriage bed, which is basically box-shaped as a whole, comprising a bottom wall, a front wall, a rear wall, a left side wall, and a right side wall. . In such a box-shaped bed, when the front wall is displaced to another location, especially when the front wall is displaced downward to release the front part of the stroller bed, it becomes chair-like. As a structure for this purpose, each front part of the bottom wall, left side wall, and right side wall is integrally formed with a separate member from each rear part, and the front part is arranged at a different level from the rear part. Further, the front wall is configured to be separable from the left side wall and the right side wall, and can be bent across the boundary line with the bottom wall.
Furthermore, a pair of drawer bars are provided on both lower sides of the bottom wall so as to be slidable in the front and back direction, and the front portion is mounted on the drawer bars. Therefore, when the pull-out rod is retracted rearward, the front part and the rear part slide overlapping each other. Furthermore, the front wall, the main body of the baby carriage, and the pull-out rod are connected by a bendable rod. The bendable rod includes a front link rod, a center link rod, and a rear link rod. The front link rod has its front end rotatably connected to the front wall, and its rear end rotatably connected to the front end of the rear link rod. The rear link rod is rotatably connected at its rear end to the baby carriage main body. The central link rod is rotatably connected at its upper end to the central portion of the rear link rod and at its lower end to the drawer rod.

The presence of such a bendable bar allows the front wall to close the front of the stroller bed when the pull-out bar is pulled out to the front end, and as the pull-out bar is retracted to the rear. By moving downward, the front of the baby carriage bed is opened, and thus it can be used as a chair.

Effects of the Invention According to the present invention, it is possible to obtain a bed for a baby carriage that is box-shaped as a whole, which is preferable in terms of growth and livability of infants. In order to transform this basic bed-like form into a chair-like one, there is no need to add new parts prepared separately or to separate and remove parts that were originally part of the bed. , it is only necessary to deform or displace some of the members provided in the bed while remaining in relation to other members. That is, if the pair of drawer bars are slid and pulled forward, the members forming the front part of the bed will also move forward, and the front wall will close the front of the baby carriage bed, and if the baby carriage bed is pulled back, The members constituting the front part of the bed also move rearward together, and the front wall releases the front part of the baby carriage bed, allowing it to be used as a chair. Therefore, there is no risk of parts being lost, which is common when separable members are provided. Furthermore, since the front wall is configured to be displaced in accordance with the slide of the pull-out rod due to the presence of the bendable rod, switching operation between the bed-like form and the chair-like form of this baby stroller bed is very easy. It becomes easy.

DESCRIPTION OF THE EMBODIMENTS FIG. 1 is a right side view of a baby carriage to which an embodiment of the present invention is attached, and the bed is in the original bed shape. FIG. 2 is a perspective view of the bed of FIG. 1. FIG. 3 shows the bed in FIG. 2 transformed into a chair shape. Figure 4 shows the line in Figure 2 -
FIG. FIG. 5 is a perspective view showing a pull-out rod and related structures provided in the baby carriage shown in FIG. 1.

The baby carriage bed 1 has a box shape as a whole and includes a bottom wall 2, a front wall 3, a back wall 4, a left side wall 5, and a right side wall 6. These walls 2~
6 is made of a suitable cloth, etc., and in some parts the bendable properties of this cloth etc. are utilized, and in some parts, a hard core material is loaded to provide appropriate strength or "stiffness". Given.

In FIG. 1, the bed 1 is shown with the right side wall 6 removed. The bottom wall 2 of the bed 1 is loaded with a hard core material. Different core materials are used for the front part 2a and the rear part 2b of the bottom wall 2. That is, the bottom wall 2
A front core material 7 is loaded into the front part 2a of the front part 2a. In the illustrated embodiment, the rear part 2b of the bottom wall 2 includes:
It is further divided into two areas, front and rear, and the rear half core material 8 is loaded in the first half, and the rear half core material 9 is loaded in the latter half. Further, each of the front parts 5a, 6a of the left side wall 5 and the right side wall 6 is similarly made of a different member from each of the rear parts 5b, 6b, and each is loaded with a hard core material. Bottom wall 2 and left side wall 5
The front portions 2a, 5a, and 6a of the right side wall 6 are integrally constructed, and together with the front wall 3 constitute the front portion 1a of the bed 1. The rear part 1b of the bed 1 includes the rear parts 2 of the bottom wall 2, the left side wall 5, and the right side wall 6.
b, 5b, 6b, and the rear wall 4. The front part 1a of the bed 1 is arranged at a different level from the rear part 1b, that is, in this embodiment, it is arranged so as to overlap the rear part 1b. Engagement rails 10 are formed along the upper edges of the front parts 5a, 6a of the left side wall 5 and the right side wall 6, and these engaging rails 10 are connected to the rear parts 5b, 6a of the left side wall 5 and the right side wall 6, respectively. 6b, as best shown in FIG.

The front wall 3 is configured to be separable from each front portion 5a, 6a of the left side wall 5 and right side wall 6,
It is made bendable via the boundary line 11 with the front part 2a of the bottom wall 2.

A pair of drawer rods 12 are provided on both lower sides of the bottom wall 2 so as to be slidable in the front and back direction. FIG. 1 shows a state in which the pull-out rod 12 is pulled out forward.

Referring to FIG. 5, the pair of drawer rods 12 are
The stroller is inserted into a pair of tube members 13 provided on the side of the stroller body and extends in the front-rear direction, and is thereby slidably held. A widthwise connecting rod 14 and a first widthwise connecting belt 15 are connected between the pair of tube members 13 . Further, a second widthwise connecting belt 16 is connected between the front ends of the pair of pull-out rods 12 . In the middle of the pair of tube members 13, parallel to the tube members 13, a wide belt 17 is installed.
Width direction connecting rod 14, first width direction connecting belt 15
and the second width direction connecting belt 16 is provided. These widthwise connecting rods 14, widthwise connecting belts 15, 16, and wide belt 17
comes into contact with the lower surface of the bottom wall 2 of the bed 1 and serves as an auxiliary support for the bottom wall 2. The state shown by the solid line in FIG.
2 is in a retracted state, and a slack 18 is formed in the wide belt 17. Drawer rod 1
2 is pulled forward, as shown in phantom in FIG.

The front part 1a of the bed 1 is mounted on a pull-out rod 12, and when the pull-out rod 12 is retracted rearward, the front part 1a of the bed 1 slides overlapping with the rear part 1b of the bed 1.

As clearly shown in FIG. 1, the front wall 3 and the main body of the baby carriage are connected by a bendable rod. Various ways can be considered for the connection, but
One aspect of this is introduced here. That is, a pair of frames 19 are attached to both sides of the front wall 3. The bendable rod described above includes a front link rod 20, a center link rod 21, and a rear link rod 22. The front link rod 20 has its front end rotatably connected to the front wall 3 via a rotation pin 23, and its rear end can rotate to the front end of the rear link rod 22 via a rotation pin 24. connected to. The rear link rod 22 has a rotation pin 2 at its rear end.
5, it is rotatably connected to the front leg 26 of the baby carriage. The central link rod 21 has an upper end rotatably connected to the center portion of the rear link rod 22 via a rotation pin 27, and a lower end thereof rotatable to the drawer rod 12 via a rotation pin 28. connected to. Each link rod 20, 21 and 22 is constructed from a relatively rigid member, the dimensions and arrangement of which are selected to achieve the operation described below with reference to FIGS. 6-10.

Note that if the frames 19 attached to both sides of the front wall 3 are made of a solid member and have a length that extends almost the entire length of both sides, the shape of the front wall 3 is determined by the pair of frames 19. There is no need to load the front wall 3 with a hard core material as it will be held in place. In addition, each rear part 5b, 6b of the left side wall 5 and the right side wall 6, and the rear wall 4
Also, the handrail 29 on the side of the baby carriage body and this handrail 29
Since it is held by the frame 30 extending rearward from the center, there is no need to load a particularly hard core material.

Although it was mentioned above that a hard core material is not particularly necessary for the front wall 3, it is preferable that a core material extending thin and long is loaded along the upper edge of the front wall 3 in order to provide more strength. Good too. As shown in phantom lines in FIG. 1, a canopy 31 may be attached to cover a relatively rear portion of the bed 1.

In FIG. 1, the pair of drawer rods 12 have been pulled out to their forwardmost positions, and the front portion 1a of the bed 1 has accordingly moved to its forwardmost position. Further, the front wall 3 is pulled rearward by the front link rod 20 and the rear link rod 22, so that downward rotation about the boundary line 11 with the bottom wall 2 is prohibited. Ru. In this state, in order to prevent drafts from entering the bed 1, the front wall 3 and the front edges of the front portions 5a, 6a of the left and right side walls are preferably brought into close contact with each other. In this embodiment, in order to prevent drafts more fully, the front wall 3 is placed on both sides of the front wall 3 in a state in which the front of the baby carriage is closed as shown in FIG. 1 or 2. A lip 32 may be provided extending along the outer surface near the front end edges of the front portions 5a, 6a of the left and right side walls.

In order to transform the bed 1 from the bed shape shown in FIG. 1 or 2 to the chair shape shown in FIG. 3, the pair of drawer rods 12 are retracted rearward. The sequential form of this transition from bed-like to chair-like is diagrammatically shown in FIGS. 6 to 10.

In the state shown in FIG. 6, the pull-out rod 12 is pulled out to the most forward position, and in this state, the front wall 3 cannot be rotated downward by the front link rod 20 and the rear link rod 22. It is forbidden. Then, when the pull rod 12 is retracted rearward, the front link rod 20 and the rear link rod
2 increases, the front wall 3 rotates downward about the boundary line 11 with the front part 2a of the bottom wall 2, and finally extends the front of the bed 1 into the 10th Set it in the released state as shown in the figure. Note that the central link rod 21 assists the front link rod 20 and the rear link rod 22 so that they can easily bend or rotate relative to each other about the rotation pin 24.

When the front of the bed 1 is opened as shown in FIG. 10, it can be used as a chair.
That is, the infant can extend his or her legs to the front of the bed 1. At this time, the front wall 3 is
It runs along the back of the leg and also serves to protect the leg.

Incidentally, when the bed 1 is shaped like a chair, the backrest portion may be formed using the latter half of the rear portion 2b of the bottom wall 2. For example, the first
As shown by imaginary lines in the figure, the rear half core member 9 is configured to rise from the bottom wall 2, and this raised state may be supported by a suitable support member 33 to serve as a backrest.

In order to return the bed 1 to its original bed shape, it is sufficient to simply pull out the pair of pull-out bars 12 forward; in that case, the front wall 3
0. If the dimensions and positional relationship of the rear link rod 22 and the center link rod 21 are appropriately selected, the state will automatically shift from the open state shown in FIG. 10 to the closed state shown in FIG. do. However, if the dimensions and positional relationship of the front link rod 20, the rear link rod 22, and the center link rod 21 are not selected appropriately, the drawer rod 12
While performing the pull-out operation, the front wall 3 will be supported and rotated by hand.

11 and 12 show other examples of the structure for forming the backrest portion. In order to apply the configuration shown here, it is preferable that the back wall 4 is loaded with a back core material 34 as a hard core material. A main lever 35 is rotatably supported at the rear end portion of the handrail 29, which is a part of the baby carriage body. An auxiliary lever 36 is rotatably supported below the main lever 35 at the rear end of the handrail 29 . Main lever 35 and auxiliary lever 3
6, a bed rear support member 37 is provided, and this bed rear support member 37
directly supports the further rear end of the rear portion 1b of the bed 1. A reclining adjustment link 39 is provided between the main lever 35 and the push rod 38 of this baby carriage.
are connected, and this reclining adjustment link 39
By changing the bending state of the main lever 35, the inclination state of the main lever 35 is changed. The main lever 35 is
As shown in the figure, the bed 1 is supported by the bed rear support member 37 when it is in the horizontal position.
The bottom wall 2 at the rear end is also kept in a horizontal state, maintaining the original bed state. As shown in FIG. 12, when the main lever 35 rises, the bed rear support member 37 is displaced upward, the rear wall 4 is lifted, and the rear half core member 9 of the bottom wall 2 is lifted. The loaded part is lifted.
As a result, a backrest portion is formed by the rear half core material 9 and the back wall 4. The auxiliary lever 36 controls the attitude of the bed rear support member 37. For example, in the state shown in FIG. Adjust so that the rear half core material 9 is aligned. Note that in order to facilitate the operation for forming the above-mentioned backrest portion, it is preferable to form slack (not shown) in the rear end portions of the side walls 5 and 6.

The canopy 40 is attached to the bed rear support member 37, for example.
It may be installed using.

Although this invention has been described above in connection with embodiments, several other variations are also possible. In the embodiment, the front leg is used as the connection point between the rear link rod 22 and the baby carriage body, but this connection point may be located, for example, on the handrail 29 or in another part of the baby carriage body.

Further, although the above explanation did not mention the folding of the baby carriage, by devising various materials for making up the bed or ways of connecting each material, it is possible to obtain a bed that successfully follows the folding movement of the baby carriage. Such a bed can be applied both to folding baby carriages and to baby carriages without a folding function.

[Brief explanation of drawings]

FIG. 1 is a right side view of a baby carriage to which an embodiment of the present invention is attached, and the bed 1 is in the original bed shape. FIG. 2 is a perspective view showing the bed 1 of FIG. 1. FIG. 3 shows a state in which the bed 1 of FIG. 2 is shaped like a chair. FIG. 4 is a sectional view taken along the line - in FIG. 2. FIG. 5 is a perspective view showing the pull-out rod 12 of FIG. 1 and related structures. 6 to 10 are right side views schematically showing the sequential configuration of the bed 1 as it transitions from its original bed shape to a chair shape. FIG. 11 is a right side view of a baby carriage to which another embodiment of the present invention is attached, and shows another example of the structure for forming the backrest compared to FIG. 1.
FIG. 12 shows a state in which the bed 1 of the baby carriage shown in FIG. 9 is shaped like a chair. In the figure, 1 is a baby carriage bed, 1a is the front part of the bed, 1b is the rear part of the bed, 2 is the bottom wall, and 3
4 is a front wall, 4 is a rear wall, 5 is a left side wall, 6 is a right side wall, 12 is a drawer rod, 13 is a tube member, 20 is a front link rod, 21 is a center link rod, and 22 is a rear link rod.

Claims (1)

[Scope of Claims] 1. It has a box shape as a whole, comprising a bottom wall, a front wall, a rear wall, a left side wall, and a right side wall, and each front part of the bottom wall, left side wall, and right side wall is connected to each rear side. The front wall is configured to be separated from the left side wall and the right side wall, and the front wall is configured to be separable from the left side wall and the right side wall, and the front wall is configured to be separable from the left side wall and the right side wall, and the front wall is configured to be separable from the left side wall and the right side wall, and the front wall is configured to be separable from the left side wall and the right side wall. A pair of drawer bars are provided on both lower sides of the bottom wall so as to be slidable in the front and back direction, and the front part is attached to the drawer bars,
When the pull-out rod is retracted rearward, the front portion and the rear portion slide while overlapping each other, and the front wall, the main body of the baby carriage, and the pull-out rod are connected by a bendable rod. , the bendable rod includes a front link rod, a center link rod, and a rear link rod, the front end of the front link rod is rotatably connected to the front wall, and the rear end thereof is connected to the front wall. The rear link rod is rotatably connected to the front end of the rear link rod, the rear end of the rear link rod is rotatably connected to the baby carriage body, and the center link rod has an upper end connected to the center of the rear link rod. A stroller bed which is rotatably connected to the section and whose lower end is rotatably connected to the pull-out rod.