JP2001346653A - Seat - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a long seat in which a back slide can be easily installed in a leg frame and having no gap where dust collects easily at the lower end of the back slide. SOLUTION: In a long seat, a plate shape hanging member 29 is provided at the lower end of the back slide frame 22 protruding downward, and a locking member 39 having a locking face on the back face 390 for locking the front face 290 of the hanging member 29 at the vertical portion of the leg frame 3 is provided. After the hanging member 29 is inserted from the top of locking member 39 through the back side, and the front face 290 of the hanging member 29 is locked with the back face 390 of the locking member 39, the back slide frame 22 is fixed to the leg frame 3 by engaging the engaging member 25 on the back face of the back slide frame 2 with the receiving member 35 of the leg frame 3.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to a sheet. The seat of the present invention is, for example, a long seat provided along a wall of a train or the like (for example, a long seat for two, three, or two for seven).

[0002]

2. Description of the Related Art FIGS. 3 and 4 show a conventional long seat. FIG. 3A is a perspective view of the backrest 2 and a part of the leg frame 3 as viewed from the rear side, and FIG.
Fig. 4 (a) is a vertical cross-sectional view showing a state fixed to 3;
FIG. 4B is a perspective view illustrating a procedure for fixing the leg frame 3 to the leg frame 3, and FIG.

[0003] The illustrated long seat is provided on the front of a vertical portion of the leg frame 3 (portion substantially perpendicular to the floor surface / portion constituted by the mounting member 37 and the pipe 35).
22, and a back restraining spring (fitting member) 25 provided at a predetermined position on the back surface of the back frame 22 is moved to the vertical portion of the leg frame 3 so as to correspond to the back restraining spring 25. The backrest frame 22 is fixed to the leg frame 3 by being fitted to a pipe (receiving member) 35 provided at a predetermined portion on the front surface.

[0004] With this configuration, when removing the backrest 2 from the leg frame 3, the user inserts his hand into the portion A (see FIG. 3B) and pulls it in the direction of arrow b (toward the front side). The back holding spring 25 gripping 35 is removed from the pipe 35. In other words, the backrest 2 is removed from the lower end side.

[0005]

The conventional long seat shown in FIGS. 3 and 4 is constructed by fitting a back holding spring 25 to a pipe 35 of a leg frame 3 attached to a train wall or the like. Since the backrest 2 is attached to the leg frame 3, it is necessary to accurately position and assemble the backrest holding spring 25 and the pipe 35 by hand, which has made the assembling work difficult.

When the backrest 2 is to be removed from the leg frame 3, the fitting between the pipe 35 and the backrest holding spring 25 is released by inserting the hand into the portion A and pulling the hand forward. Therefore, there is a gap at the lower end of the backrest 2 for inserting a hand, and there is a problem that dust easily accumulates in the gap.

[0007] An object of the present invention is to provide a seat capable of easily performing an operation of attaching the backrest 2 to the leg frame 3. It is another object of the present invention to provide a sheet in which the lower end of the backrest 2 has no gap and therefore does not collect dust.

[0008]

A seat according to the present invention comprises a fitting member at a predetermined position on the rear surface of the back frame (22) by pressing the back frame (22) against the front surface of the vertical portion of the leg frame (3). (twenty five)
A seat for fixing the backrest frame (22) to the leg frame (3) by fitting the backrest frame (22) to the corresponding receiving member (35) at a predetermined position on the vertical front surface of the leg frame (3). (22) is provided with a plate-shaped hooking member (29) projecting downward from the lower end thereof, and the front portion (290) of the hooking member (29) is engaged with the vertical portion of the leg frame (3). Back side with locking surface for
(390) is provided with a locking member (39),
(29) is inserted from above the locking member (39) to the rear side, and the front surface (290) of the hooking member (29) is connected to the rear surface (3
90), the fitting member (25) is connected to the receiving member.
The back frame (22) is fixed to the leg frame (3) by being fitted to the (35).

[0009]

1 and 2 show a long seat according to an embodiment of the present invention. FIG. 1A is a perspective view of the backrest 2 and a part of the leg frame 3 as viewed from the rear side, and FIG. 1B is a vertical cross-sectional view showing a state in which the backrest 2 is fixed to the leg frame 3.
2A is a longitudinal sectional view of the backrest 2, and FIG. 2B is a front view (left side) and a side view (right side) of the hooking member 29. 3 and 4 are denoted by the same reference numerals.

The illustrated long sheet includes a mounting member 37 (FIG. 4).
) To fit along the train wall. This long seat is attached to the front of the vertical portion of the leg frame 3 (the portion consisting of the mounting member 37 and the pipe 35).
Of one or more (three in the example shown) provided at a predetermined portion (a portion having a predetermined height from the lower end) on the back surface of the backrest frame 22 by pressing the backrest frame 22. A spring (fitting member) 25 is provided horizontally at a predetermined portion (a portion at a predetermined height from the floor) on the front surface of the vertical portion of the leg frame 3 so as to correspond to the back holding spring 25. Receiving member) 35 to fit the back frame 22
Is fixed to the leg frame 3.

The long frame 22 of the long seat is provided with a plate-shaped hook member 29 so as to protrude downward from the lower end thereof. The hook member 29 is divided into an upper portion 29b and a lower portion 29a by a step 29d at the center in the vertical direction. The upper portion 29b is provided with three bolt holes 29c. Bolts inserted into the bolt holes 29c allow predetermined portions of the lower end portion of the back frame 22 (in the illustrated example, three back holding springs). 25 right under each part).

The leg frame 3 of the long seat has a pipe 35 horizontally supported by a mounting member 37, and a seat pan 32 horizontally supported by the mounting member 37 and projecting toward the front side (center side in the train). And This seat pan
On the seat 32, a seat cushion 33 is placed and fixed. Further, a connecting portion 39 extending vertically upward is formed on the back side (the opposite side to the near side) of the seat pan 32, and this connecting portion 39
It has a function as a locking member 39 corresponding to the hook member 29.

When attaching the backrest 2 to the leg frame 3, first, the hooking member 29 is inserted from above the locking member 39 to the rear side thereof, and the front surface 290 of the hooking member 29 is attached to the locking member 39. Lock at back 390. At this time, the hook member 29
Step 29d rests on the upper end of the locking member 39, so that even if the worker slightly relaxes the force holding the backrest 2 by hand, the backrest 2 is supported by the leg frame 3 side and the position is maintained. keep. For this reason, the assembling work becomes easy. At this time,
In the backrest 2, the backrest holding spring 25 on the rear side is located at substantially the same height as the pipe 35.In this state, the backrest holding spring 25 is pressed against the leg frame 3 so that the backrest holding spring 25 is connected to the pipe. 35 can be fitted. In this example,
A step 29d is formed on the hook member 29, and this step 29d is formed.
Is placed on the upper end of the locking member 39, but instead of this,
A step may be provided at the lower end of the backrest frame 22, and the step may be placed on the upper end of the locking member 39.

As described above, after the backrest 2 is locked at its lower end side (by locking the hooking member 29 with the locking member 39),
By fitting the back holding spring 25 to the pipe 35, it is fixed to the leg frame 3, so that there is no gap at the lower end side, and therefore, the problem that dust accumulates in the gap is also prevented.

When removing the backrest 2 from the leg frame 3, hold the portion B (see FIG. 1B) by hand and pull it toward the front side as shown by the arrow a to thereby move the pipe 35 and the backrest holding spring. 25, and then lift the backrest 2 by hand to lift the hooking member 29 and the locking member.
The lock with 39 will be released. Incidentally, reference numeral 23 in the figure denotes a back cushion.

[0016]

According to the present invention, the back frame (22) is provided with a plate-shaped hook member (29) projecting downward from the lower end thereof, and the hook member (29) is provided on the vertical portion of the leg frame (3). 29) front (2
A locking member (39) having a locking surface on the back (390) for locking the locking member (90) is provided.
9) and insert it into the rear side from the top of the hook member (29).
90) on the back (390) of the locking member (39), and then fit the mating member (25) on the back side of the backrest frame (22) to the leg frame.
By fitting the backrest frame (22) to the leg frame (3) by fitting it to the receiving member (35) on the vertical front side of (3), the work of assembling the backrest 2 to the leg frame 3 can be performed. It will be easier. Further, since there is no gap at the lower end of the backrest 2, there is no accumulation of dust.

[Brief description of the drawings]

FIG. 1 is an explanatory view (a) of a procedure for attaching a backrest of a seat to a leg frame (and a seat pan) according to an embodiment;
Sectional drawing (b) which shows the state after attachment.

FIGS. 2A and 2B are a side view and a front view and a side view of a hooking member of the seat according to the embodiment; FIGS.

FIG. 3A is an explanatory view of a procedure for attaching a backrest of a conventional seat to a leg frame (and a seat pan) side, and FIG. 3B is a cross-sectional view showing the state after attachment.

FIG. 4 is a perspective view illustrating a conventional procedure for attaching a backrest of a seat to a leg frame (and a seat pan) side.
FIG. 2B is a perspective view showing a leg frame and a seat pan.

[Explanation of symbols]

 22 Slip frame 23 Slip cushion 25 Slip holding spring 29 Hook member 32 Seat pan 33 Seat cushion 35 Pipe for leg frame

Claims (1)

[Claims] A back frame (22) is pressed against the front surface of a vertical portion of a leg frame (3), and a fitting member (25) at a predetermined portion on the back of the back frame (22) is attached to the leg frame (3). A seat for fixing the backrest frame (22) to the leg frame (3) by fitting to a corresponding receiving member (35) at a predetermined portion on the front surface of the vertical portion of the backrest frame (22). A plate-shaped hooking member (29) protruding downward from the lower end is provided, and a locking surface for locking the front surface (290) of the hooking member (29) is provided on a vertical portion of the leg frame (3). A locking member (39) having a rear surface (390) is provided, and the hooking member (29) is inserted from above the rear side of the locking member (39) to the rear side so that the front surface (290 ) Is the locking member
After being locked on the back surface (390) of (39), the fitting member (25) is fitted to the receiving member (35), thereby fixing the backrest frame (22) to the leg frame (3). A sheet characterized in that: