JPH0753558Y2 - Baby chair with table - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a child-care chair with a table, and more particularly to a mechanism for adjusting the position of the table.

[0002]

2. Description of the Related Art A table is attached to most of the child-care chairs. Such a table is used as a table on which tableware or the like is placed when feeding an infant sitting in a child-care chair, or as a table on which toys or the like are played when playing an infant. In addition, the table often has a function of preventing a leaning baby from falling from the child-care chair.

In such a child-care chair with a table,
In many cases, the table is removable from the child-care chair,
Further, the position of the table in the front-back direction can be adjusted. This makes it possible for an infant to sit in a child care chair,
It becomes easy to pick up an infant from the child-care chair, and it becomes possible to change the distance between the backrest portion of the child-care chair and the table as the infant grows.

[0004]

In the child-care chair to which the table whose position can be adjusted as described above is attached,
When considering safety for infants, the table after the position adjustment must be securely fixed to the child-care chair. Further, in consideration of convenience in use, it is desirable that the operation for adjusting the position of the table is simple.

Therefore, an object of the present invention is to provide a child-care chair with a table which can satisfy the above-mentioned needs.

[0006]

The present invention is directed to a child-care chair with a table, in which side walls are provided on both sides of a seat portion and a table is attached while being extended between a pair of the side walls. In order to solve the above-mentioned technical problem, the following features are provided.

That is, a pair of hollow side bars extending in the front-rear direction and parallel to each other are fixed to the table.

On the other hand, each side wall is formed with a space for slidably receiving each of the pair of side bars in the longitudinal direction thereof.

Each side bar is provided with a plurality of engaging holes distributed in the longitudinal direction thereof.

Further, engaging pins each having a rounded tip are provided so as to be capable of projecting / non-projecting with respect to the space of each of the side walls. The engaging pin is biased by a spring so as to move in the protruding direction, and when moved in the protruding direction by the action of the spring, engages with the selected one of the engaging holes. To be

Further, each of the side bars is provided with a linear cam member slidable in the length direction thereof. A cam acting on the linear motion cam member so as to force it into a non-protruding state while contacting the tip of the engagement pin engaged with the engagement hole by sliding in one direction. A surface is formed.

The pair of linear cam members are respectively slidable in a direction opposite to the one direction.
It is spring biased.

The pair of linear motion cam members are connected to each other by an interlocking rod. Further, the table is provided with an operation member for operating the pair of linear motion cam members so as to slide in the one direction via the interlocking rod.

[0014]

In the above-described child-care chair with a table according to the present invention, the table is engaged with the engaging pin biased by the spring in the protruding direction in the selected engaging hole provided in the side bar. By doing so, it is fixed in the adjusted position.

On the other hand, when it is desired to change the position of the table, first, the operation member is operated. By operating this operation member, the pair of linear motion cam members are both slid in one direction via the interlocking rod. As the linear cam member slides, the cam surface contacts the tip of the engaging pin engaged with the engaging hole and forces the engaging pin into a non-projecting state.

Next, while maintaining the above state, a force for moving the table in the front-back direction is applied. As a result, the engagement pin, which is forced to the non-projection state by the action of the cam surface, is further guided out by the roundness of the tip end thereof and is completely released from the engagement hole that has been engaged until now. . In this state, if the operation of the operation member is released, the linear cam member slides in the other direction according to the action of the spring, and the engagement pin can be received in each engagement hole. Therefore, if the operation of the operation member is released when the table is brought to or near the desired position while the table is being moved in the front-rear direction, the operation corresponding to the desired position of the table can be achieved. The engaging pin engages with the dowel hole to fix the position of the table.

[0017]

As described above, according to this invention, a child-care chair with a table can be obtained in which the position of the table can be adjusted in the front-back direction.

In such a child-care chair with a table,
The table has an engagement pin that is urged to move in a protruding direction by a spring and engages with the engagement hole.
It can be securely fixed in the adjusted position. Therefore, the position of the table is prevented from being inadvertently displaced, and the safety for infants is improved.

The operation that must be performed when adjusting the position of the table is extremely simple. That is, it is sufficient to move the table in the front-rear direction while operating the operation member and release the operation on the operation member at a desired time. This kind of operation also
It can also be done with only one hand.

[0020]

1 to 7 are diagrams for explaining a child-care chair 1 with a table according to an embodiment of the present invention.

As shown in FIG. 1, side walls 3 are provided on both sides of the seat portion 2 of the child-care chair 1, respectively. In FIG. 1, only the childcare chair 1 on the front side of the side wall 3 is shown because of the side view of the childcare chair 1.
A table 4 is attached in a state of being passed between the pair of side walls 3.

Details of how the table 4 is attached to the side wall 3 are shown in FIG. In FIG. 2, the mounting state of the table 4 is shown for one side wall 3, but the other side wall 3 is also in substantially the same mounting state. In FIG. 3, the table 4 is shown from the bottom in a single state. In FIG. 4, the table 4 is shown in a side view with the table 4 partially cut away. In FIG. 5, a part of the side wall 3 after the table 4 is removed is cut away and shown in a side view.

As shown in FIGS. 3 and 4, a hollow side bar 5 extending in the front-rear direction is fixed to the table 4. The side bars 5 are provided in a pair, and are arranged along the left and right side portions of the table 4 in parallel with each other. The side bar 5 is composed of, for example, a pipe having a rectangular cross section.

On the other hand, as well shown in FIG. 5, each side wall 3 is formed with a space 6 in which each of the above-mentioned pair of side bars 5 is slidably received in the longitudinal direction thereof. . The space 6 has an opening 7 at its front end.

Each side bar 5 is provided with a plurality of, for example, three engaging holes 8a, 8b, 8c, distributed in the lengthwise direction.

On the other hand, an engagement pin 9 is attached to each side wall 3. The engagement pin 9 is a case 10 fixed to the side wall 3.
It is held by and can be projected / non-projected with respect to the space 6. The engagement pin 9 has a rounded tip. Between the engagement pin 9 and the bottom surface of the case 10,
A compression spring 11 is arranged. As a result, the engagement pin 9
Are urged to move in a direction projecting into the space 6. Thus, due to the action of the compression spring 11,
When the engagement pin 9 is moved in the projecting direction, the engagement pin 9 is selected from the engagement holes 8a to 8c, for example, as shown in FIG.
Then, it engages with the engagement hole 8a.

As shown in FIG. 2, each side bar 5 is provided with a linear cam member 12 slidable in the longitudinal direction thereof. The linear cam member 12 is shown alone in FIG. The linear motion cam member 12 has cam surfaces 13a, 13b, 13 at positions corresponding to the engagement holes 8a to 8c, respectively.
forming c. These cam surfaces 13a to 13c are attached to the tips of the engagement pins 9 engaged with the corresponding engagement holes 8a to 8c by sliding in one direction of the linear cam member 12, that is, in the direction shown in the drawing, to the left. While in contact, it acts to force it into a non-protruding state.

The above-described linear cam member 12 is biased by the compression spring 14 so as to slide to the right in FIG. A tension spring may be used instead of the compression spring 14, but in this embodiment, the compression spring 14 is used in consideration of the durability and stability of the spring action. In order to exert a rightward spring force on the linear motion cam member 12 by the compression spring 14, a pipe end 15 having a shape shown alone in FIG. 7 is used.

The pipe end 15 is fixed to the right end of the hollow side bar 5. The pipe end 15 has a connecting portion 16.
The spring bearing portion 17 is formed at a position separated by the. On the other hand, a spring receiving portion 19 is formed at a position separated by the connecting portion 18 at the right end of the linear cam member 12. As shown in FIG. 2, when the linear cam member 12 and the pipe end 15 are mounted on the side rod 5, the spring bearing portion 19 of the linear cam member 12 is located on the right side of the spring bearing portion 17 of the pipe end 15. To be done. Therefore, when the compression spring 14 is arranged between the spring receiving portions 17 and 19, the action of the compression spring 14 urges the linear cam member 12 to slide to the right.

The pair of linear motion cam members 12 are connected to each other by an interlocking rod 20 which is well shown in FIG. The interlocking rod 20 extends through one wall of the hollow side rod 5 and is inserted into a hole 21 (FIG. 6) formed in the linear motion cam member 12. Therefore, in order to allow the linear motion cam member 12 to slide as described above, the portion of the side rod 5 through which the interlocking rod 20 penetrates is, for example, an elongated hole extending in the longitudinal direction of the side rod 5.

Table 4 shows, as shown in FIG.
An operation member 22 for operating the pair of linear cam members 12 via the interlocking rod 20 so as to slide to the left in the drawing is provided. The operation member 22 is attached so as to slide along the lower surface of the table 4. Operation member 2
2 is provided with a concave portion 23 for putting an operator's finger on it, so that the operation member 22 can be easily operated.

Next, the child-care chair 1 with a table described above
The use of is described with particular reference to Table 4.

In the child-care chair 1 with the table, as shown in FIGS. 4 and 5, the table 4 can be detached from the side wall 3.

First, in order to attach the table 4 to the child-care chair 1, the end of the side bar 5 is inserted into the space 6 through the opening 7 of the side wall 3. At a relatively early stage of such insertion, the end portion of the side rod 5, more accurately, the end portion of the pipe end 15 comes into contact with the engaging pin 9 in the protruding state. However, if the side bar 5 is pushed further into the space 6, the engagement pin 9 is guided by the roundness at the tip and the tapered surface 15a (FIG. 7) at the end of the pipe end 15 and is in the non-projected state. It is said that

The insertion of the side bar 5 into the space 6 as described above is performed until the table 4 is brought to a desired position. At this time, it is preferable to operate the operation member 22 to keep the linear cam member 12 slid to the left. Because, when the direct-acting cam member 12 is slid to the left in this way, the cam surfaces 13a to 13c become
This is because the engaging pins 9 that are about to be fitted into the engaging holes 8a to 8c are forced into the non-projecting state. Therefore, the engagement pin 9 can be brought into a state of being aligned with any of the engagement holes 8a to 8c.

When the table 4 is brought to or near the desired position, the operation on the operation member 22 is released. As a result, the linear cam member 12 moves the compression spring 1
By the action of 4, it slides to the right and the cam surface 13a ...
13c respectively engages with the engagement pin 9 in the engagement holes 8a to 8c.
It becomes possible to accept deeply. Therefore,
When the table 4 is slightly moved in the front-rear direction, the engagement pin 9 is automatically engaged with the selected one of the engagement holes 8a to 8c by the action of the compression spring 11. .

In FIG. 2, the engagement pin 9 is engaged with the engagement hole 8a. In this state, the table 4 is firmly fixed to the side wall 3.

When it is desired to change the position of the table 4 from the state shown in FIG. 2, the operating member 22 is operated again. As a result, the linear cam member 12 is slid to the left via the interlocking rod 20. Therefore, the cam surface 13a is
While contacting the tip of the engaging pin 9 engaged with the engaging hole 8a, it acts so as to force it into a non-projecting state. If the table 4 is pulled out to the left, for example, while maintaining this state, the engagement pin 9 is guided by the roundness of the tip thereof and escapes from the engagement hole 8a, and the adjacent engagement hole 8b or further adjacent The engagement hole 8c can be engaged. Operation member 2
When the operation for 2 is released, the engagement pin 9 is engaged with the engagement hole 8
The state in which the position of the table 4 is securely fixed is obtained by completely engaging with b or 8c.

8 to 10 are for explaining another embodiment of the present invention. In the embodiment described above,
When the operation member 22 is moved forward with respect to the table 4, the position of the table 4 can be changed and the table 4 can be removed from the side wall 3. However, such an operation on the operation member 22 is not always performed based on the intention of the operator, and may be unintentionally performed by an infant sitting on the childcare chair 1. For example, when an infant moves his or her foot, the foot may hit the operating member 22 and move the operating member 22 forward. Such forward movement of the operating member 22 is similar to applying a force for moving the operating member 22 to the table 4 as it is, and as a result, the table 4 unexpectedly moves forward. Or side wall 3
It may come off and fall. If such a situation happens unexpectedly, it is extremely dangerous. The embodiment shown in FIGS. 8 to 10 is intended to prevent such a situation from occurring.

8 and 10 are bottom views showing a part of the table 4, and FIG. 9 is a sectional view taken along the line IX-IX in FIG. 8 and 9 show the operation member 22.
Shows the state where the lock worked against the movement of
The state in which such a lock is released is shown.
Note that, in FIGS. 8 to 10, elements corresponding to the elements described above are denoted by the same reference numerals.

The operating member 22 is provided with an elongated hole 24 for guiding the movement of the operating member 22. This long hole 2
4 to guide shaft 2 so that it can be received in
5 is extended. A lock lever 26 is attached to the guide shaft 25.
Is rotatably attached. The lock lever 26 is located in a recess 27 provided in the operation member 22, and can rotate only within a range regulated by the recess 27. Therefore, the lock lever 26 can rotate in the range from the state shown in FIG. 8 to the state shown in FIG.
Further, when the lock lever 26 is in the state shown in FIG. 8, a protrusion 28 is provided on the operation member 22 side and a lock lever 26 side is provided on the lock lever 26 side so that the state can be maintained relatively firmly. A recess 29 for receiving the protrusion 28 is provided. Further, in order to stabilize the movement of the operation member 22,
The table 4 includes ribs 2 that come into contact with the lower surface of the operating member 22.
0 is provided.

In the state shown in FIGS. 8 and 9, the lock lever 26 is in contact with or close to the one side wall 31 defining the recess 27. Therefore, the operation member 22 is
The linear motion cam member 12 cannot be slid through the interlocking rod 20 to such an extent that the engagement pin 9 (FIG. 2) is brought into the non-projecting state. Therefore, even if a force is unexpectedly applied to the operation member 22, the table 4 is reliably prevented from moving or coming off the side wall 3.

On the other hand, when it is desired to change the position of the table 4 or to remove the table 4, the lock lever 26 is rotated as shown in FIG. Lock lever 2
Since 6 is located in the recess 27, it is difficult for the infant to perform such rotation of the lock lever 26. In the state of FIG. 10, the operation member 22
Can be moved freely based on the operation on it.

[Brief description of drawings]

FIG. 1 is a side view showing a child-care chair 1 with a table according to an embodiment of the present invention.

FIG. 2 is a partially cutaway side view showing an attached state of a table 4 on a side wall 3 of the child-care chair 1 with a table shown in FIG.

FIG. 3 is a bottom view showing the table 4 detached from the child-care chair 1 alone.

FIG. 4 is a partially cutaway side view showing the table 4 alone.

FIG. 5 is a partially cutaway side view showing the side wall 3 after the table 4 is removed.

FIG. 6 is a vertical sectional view showing the linear cam member 12 alone.

FIG. 7 is a vertical sectional view showing the pipe end 15 alone.

FIG. 8 is a bottom view showing a part of a table 4 attached to a child-care chair with a table according to another embodiment of the present invention, showing a state in which the operation member 22 is locked with respect to its movement.

9 is a cross-sectional view taken along the line IX-IX in FIG.

10 is a view corresponding to FIG. 8 and shows a state in which the lock for the movement of the operation member 22 is released.

[Explanation of symbols]

 1 Childcare Chair with Table 2 Seat Part 3 Sidewall 4 Table 5 Side Bar 6 Space 8a to 8c Engagement Hole 9 Engagement Pin 11 Compression Spring 12 Linear Motion Cam Member 13a to 13c Cam Surface 14 Compression Spring 15 Pipe End 20 Interlocking Rod 22 Operation member

Claims (1)

[Scope of utility model registration request] 1. A child-care chair with a table, wherein side walls are provided on both sides of a seat portion, and a table is attached while being extended between a pair of said side walls. A pair of hollow side bars that are parallel to each other are fixed, and each side wall is formed with a space that receives each of the pair of side bars slidably in the longitudinal direction thereof. , A plurality of engaging holes distributed in the longitudinal direction thereof, respectively, and engaging pins having rounded tips are provided so as to be capable of projecting / non-projecting with respect to the space of the side wall. The dowel pin is biased by a spring so as to move in the projecting direction, and is adapted to engage with a selected one of the engaging holes when moved in the projecting direction by the action of the spring. , The length of each side bar Each of the linear cam members is slidable in the direction, and the linear cam member slides in one direction while contacting the tip of the engaging pin engaged with the engaging hole. , A cam surface is formed which acts to force it into a non-protruding state, and the pair of linear motion cam members are biased by springs so as to slide in the other direction opposite to the one direction. The pair of linear motion cam members are connected to each other by an interlocking rod,
A child-care chair with a table, wherein the table is provided with an operation member for operating the pair of linear motion cam members so as to slide in the one direction via the interlocking rod.