JP3459219B2 - Table mounting structure behind chair - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a table mounting structure on the back of a chair for use by a person in the rear seat by folding and storing a table behind the back of a chair in an auditorium or hall of a university or the like.

[0002]

2. Description of the Related Art Conventionally, a table that can be folded and stored behind the back of a chair has been found in Shinkansen trains and aircraft, and is also found in Japanese Utility Model Publication No. 59-34368 and Japanese Utility Model Publication No. 4-33325. The table has a mounting structure that can be moved up and down to be pulled out and stored.

[0003]

Therefore, the vibration of the front seat and the vibration when the table is used are easily transmitted to the table and the front seat, causing discomfort and hindrance to the user. Has a problem that the sound of dropping the table is generated to give an uncomfortable feeling, and when the table is pulled up or slowly lowered, it is heavy and the operability for storing and pulling the table is poor.

Therefore, an object of the present invention is to make it possible to comfortably use the chair and the table without transmitting the vibration of the front seat and the vibration when the table is used to the table and the front seat, and to make a drop sound of the table. An object of the present invention is to provide a table mounting structure on the back of a chair that has a good operability for storing and pulling out a table that can be stored slowly and smoothly or can be lifted up lightly.

[0005]

In order to achieve the above object, the present invention employs the following means. That is, the back of the chair
Rear seats that can be stored by folding the table behind
In the table mounting structure behind the chair used by
The table frame for storing the table is placed behind the chair back.
Stand upright with a gap in between and attached to the table underframe
The slide metal fitting that slides on the slide rail
It is installed on the table bracket and mounted on the top of the table frame.
Oil damper is attached to the attached balance spring shaft.
A balance spring embedded in the table
Attach it to the end of the metal fitting, and take the table by hand when storing the table.
When you raise the table, the table bounces up greatly
Attach the lifting spring to the slide fitting and the table receiving fitting.
It is characterized by being attached .

According to the above construction, since the table underframe is separated from the back of the chair with a gap, the vibration of the front seat and the vibration of the table can be comfortably used without being transmitted to the table and the front seat. . If you raise the table by hand when storing it, you can raise it greatly by the table flip-up spring and then lower it by its own weight to store it, and the rotary oil damper and balance spring slowly and smoothly keep the table from generating falling noise. The operability is good because it can be stored in the room or the table can be lifted and taken out easily.

[0007] In a preferred embodiment of the invention, claim 2
As noted, the table underframe should be a frame that supports the chair.
And moving adjustably mounted to the left and right horizontal direction arm.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings.

The back frame 2 supporting the backrest 22b is attached to the frame 1 supporting the seat 22a of the chair 22 .
Is, table top frame 5 with a gap is erected at the back
It is A cover 21 is attached to the table underframe 5, and a table 6 is attached to the cover 21 so that the table 6 can be rotated, vertically moved, and pulled out . That is, the back side of the table 6
The table receiving metal fitting 7 is attached to the lower side when storing
Attach the table holder 7 to the table underframe 5
The slide metal fitting 9 that slides on the slide rail 11
It is rotatably attached. Also, table receipt
At one end of the tool 7, one end of a balance spring 16 incorporated in a balance spring shaft 14 attached to the upper portion of the table underframe 5 is attached.
When the cable 6 is in the retracted position, it is in an extended state.
Has become. Furthermore, the balance spring 16 has an oil
The damper 18 is incorporated. Accordingly, force acts to wind the balance spring 16 is lifted up to the table 6, to reduce the weight of the table 6 lighter can on gels table 6, when accommodating the table 6 Yu'
To descend .

[0010] In addition, along with the attached one end of it if splashed table 8 to slide bracket 9, is attached to the response to the other end of the table bracket 7. This table flip spring 8
As shown in FIG. 5, a table 6 A, B, the position of C
Position, the position of S (one attached to the slide fitting 9
Attached to the table bracket 7 with the end side) as the center of rotation
The other end of the beam moves to the positions of S1, S2, and S3 . So
Then, when the table 6 is at the positions A and C, S-S1, S
-When the distance between S3 is wide and the table 6 is in the B position, S-S
The distance between the two is set to be the narrowest. This allows
On a table 6 manually from the state A to the upper Gereba, sounds 8 If splashed table to a position B shrinks, beyond Ru and spread the position B, jump increase automatically between C position. Then, at the position C, the table 6 is stored downward by the slide rail 11 incorporated in the table underframe 5.
It

The table underframe 5 is mounted so that it can be moved and adjusted to the left and right in the horizontal direction.
And a table underframe mounting channel 4 mounted with a table underframe 5 sandwiched between the frame 1 and the back frame 2
A gap is provided between the table underframe 5 and the table underframe 5 so that vibrations are not transmitted, and the table underframe 5 and the table underframe fixing bracket 3 which are attached by being sandwiched between the table underframe attaching channels 4 are temporarily fixed, The structure is such that it slides to the left and right and can be fixed by sliding.

In the figure, 10 is a table flip-up stopper, 12 is a slide fitting plate, 17 is a balance spring shaft fitting, 19 is a roller, and 20 is a front stopper.

Therefore, the table 6 stored in the table underframe 5 can be lightly and easily unfolded by manually pulling up the table 6 manually and rotating it as shown by the arrow A in FIG. The vibration of 6 can be comfortably used without being transmitted to the table 6 and the front seat.

When storing the table 6,
When the table 6 is manually raised as shown by the arrow B in FIG. 6, the table 6 is automatically and greatly jumped up and then lowered, and the table 6 is slowly and smoothly stored without making a falling noise.

As shown in FIG. 7, when the arrangement of the chair groups is on a circular arc in a plan view, even if the table 6 and the rear seat 22-2 are misaligned, the table underframe 5 is used in the left and right directions in the horizontal direction. It is possible to adjust and mount by sliding it to the position and fixing it in front of the rear seat 22-2.

[0016]

As described above, the chair rear of the present invention
According to the table mounting structure of, the table underframe is
Stand upright with a gap behind and lean on the slide rail.
Install the moving slide bracket to the table support bracket of the table.
Balance spring attached to the top of the table underframe
Balance spring with oil damper built into the shaft
And attach one end to the end of the table bracket
The table flip-up spring with the slide fitting and the table.
Since it is attached to the table, it can be used comfortably without the vibrations of the front seats and vibrations when using the table being transmitted to the table or front seats. it is lightly <br/> pulling Rukoto or to be housed in.

[Brief description of drawings]

FIG. 1 is a side view showing each chair including a table.

FIG. 2 is a plan view showing the plane of FIG.

FIG. 3 is a front view showing the front of FIG.

FIG. 4 is a side view showing a part of FIG. 1 in an enlarged manner.

FIG. 5 is a side view showing the table in a used state.

FIG. 6 is a side view showing an operation mode of the table.

FIG. 7 is a plan view showing a group of chairs arranged in an arc shape in plan view.

[Explanation of symbols]

22 chairs 22b backrest 5 table underframe 6 tables 8 table spring 16 Balance spring 18 rotary oil damper

Front page continuation (58) Fields surveyed (Int.Cl. ⁷ , DB name) A47C 7/62 A47B 5/04 B60N 3/00

Claims (2)

(57) [Claims] 1. A table is folded behind a chair backrest.
Only the chair behind the chair that can be used by people in the backseat.
Table in a cable mounting structure
Set the underframe upright behind the back of the chair with a gap and
Slides on a slide rail attached to the cable underframe
The slide metal fitting is installed on the table metal fitting of the table,
A balance spring shear attached to the top of the table underframe.
A balance spring with an oil damper is installed on the
And attach one end to the end of the table bracket,
Table when storing the table
The table flip-up spring and the slide fitting
A table mounting structure at the rear of the chair, characterized in that the table mounting structure is mounted on the table receiving fitting . 2. The table underframe is a frame for supporting a chair.
2. The table mounting structure on the back of the chair according to claim 1, wherein the table mounting structure is mounted on the arm so as to be movable in the horizontal direction.