JP2002159369A - Seat, cushion, frame - Google Patents

Abstract

(57) [Summary] (Modifications required) [Problem] To reduce the weight of a mounting portion of a seat spring and improve workability of mounting the seat spring. A cross panel (15) is fixedly attached between left and right side panels (13) on the front panel (12) side, and a cross bar (16) extending in parallel adjacent to and directly below the cross panel (15). And folded back in a plane, with a hook 20 at the front end protruding below the spring plane and bent, and passing the hook 20 through its corresponding hole 19 in the cross panel 15 and the cross bar. Hook on 16, while
Connect the rear end to the rear frame of the main frame 11.
And a plurality of seat springs 17 fixed to the main frame 11 while being fixed to the panel 13.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle seat, and more particularly to a seat cushion frame for use in an automobile seat.

[0002]

2. Description of the Related Art Recent automobile seats tend to reduce the thickness of a seat cushion frame in order to reduce the weight. In particular, in a seat cushion frame that is framed by a front panel, a rear panel, and left and right side panels, and a cross panel is welded between the left and right side panels on the front panel side. If the thickness of the seat spring is reduced, the strength of the portion where the seat spring is hooked is reduced, which causes a problem in mounting the seat spring. If the cross panel, which cuts and raises its attachment point, bends under load, the seat spring will twist and affect cushioning performance. Further, since the seat spring is entirely folded back on a flat surface and bent, the mounting is inserted in a lateral direction, and the mounting workability is poor.

[0003]

SUMMARY OF THE INVENTION An object of the present invention is to secure the strength at the mounting position of the seat spring even when the plate thickness is reduced, to reduce the weight, and to easily mount the seat spring to improve the workability. It is an object of the present invention to provide a seat cushion frame capable of improving and reducing costs.

[0004]

Means corresponding to the object and the operation thereof
The main frame is framed by the front panel, rear panel, and left and right side panels, and multiple holes are drilled at appropriate intervals in the length direction. A cross panel fixedly attached between the panels, and a cross bar extending in parallel with and adjacent to and directly below the cross panel corresponding to the plurality of holes of the cross panel, and bent in a plane. The front end is bent with the hook protruding below the spring surface, and hooked through the corresponding hole in the cross panel and hooked onto the cross bar, while the rear end is hooked into the main end. A plurality of seat springs fixed to the rear frame of the frame and attached to the main frame,
Then pass the hook of the seat spring through the hole in the cross panel from above and hook the hook on the cross bar to fasten the front end of the seat spring to the cross bar.

[0005]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a seat cushion frame according to the present invention will be described with reference to specific examples shown in FIGS. 1 to 4. FIG. 1 to FIG. 4 are applied to a front seat of a passenger car. A concrete example 10 of a seat cushion frame according to the present invention is shown in FIG.
1 is normally framed from a front panel 12, a rear panel 13, and left and right side panels 14, 14, and a cross panel 15 is provided with a plurality of holes 19, 19, 19, 19, and
On the side of the front panel 12, it is welded between the left and right side panels 14, 14, and furthermore, the cross bar 1
6 are the plurality of holes 19, 1
9, 19, 19, adjacent to directly below the cross panel 15, extending in parallel and welding both ends to the left and right side panels 14, 14, and furthermore, a plurality of seat springs 17. , 17, 17, 17 are each formed into an S-shaped spring which can be folded back in a plane, and hooks 19, 19, 19, 19 are protruded below the spring surface at the front end of the S-shaped spring. Bend.

The rear panel 13 normally cuts and raises a plurality of lanced bridges 18, 18, 18, 18 at appropriate intervals in the length direction, that is, in the left-right direction, and the lanced bridges 18, 18, 18 18, 18
The rear ends of the springs 17, 17, 17, 17 are hookable.

[0007] The left and right side panels 14, 14
Reclining device at rear end (not shown)
And stop the free hinges (not shown) and normally support the seat back frame (not shown).

In the cross panel 15, the hole 1
9, 19, 19, 19 are the seat springs 17,
17, 17 and 17 are embodied as slots having a hole diameter larger than the wire diameter of the slots 19, 19, 19,
The seat springs 17, 17, 17, 17
Exit downward through its hooks 20,20,20,20 and attach the hooks 20,20,20,20,20 to the cross bar 16.
20, 20, 20 can be hooked. so,
In this cross panel 15, the hooks 20, 20,
The hooking of the hooks 20,20,20,20 to the cross bar 16 is greatly simplified in addition to the fact that the operation of hooking 20,20 to the cross bar 16 is greatly simplified in the slots 19,19,19,19. The cross panel 15 restricts the position of the seat springs 17, 17, 17, 17 in the left and right directions at the slots 19, 19, 19, 19.

The cross bar 16 is lightened by a pipe bar. If the front seat incorporates a seat lifter into the seat cushion, the cross bar 16 utilizes the operating shaft of the seat lifter. That is, the hooks 20, 2
0, 20, 20 are hooked on its operating shaft.

Therefore, in the seat cushion frame 10, the seat springs 17, 17,
17, from above the cross panel 15, the slots 19, 19, 19, of the cross panel 15
19 through the hooks 20, 20, 20, 20 and under the cross panel 15 under the hooks 20, 20, 2,
0,20 and hook the hooks 20,20,20,20 on the cross bar 16 to fasten the front end to the cross bar 16,
Its lanced bridge 18, on its rear panel 13,
The rear end is normally hooked on 18, 18, 18 and the rear end is stopped on the rear panel 13.
As such, its seat springs 17, 17, 1
The seat springs 17, 17, 17, 17 are easily secured to the main frame 11 in tension while the front ends of 7, 17 are secured to the cross bar 16 in a vertical mounting operation. Can be

The seat springs 17, 1
7, 17, 17 are positioned and stopped by the cross bar 16 in the slots 19, 19, 19, 19 of the cross panel 15 without shifting in the left-right direction. The seat cushion frame 10 can maintain its seat springs 17, 17, 17, 1 even when the plate thickness is reduced.
7. It is possible to secure strength at the mounting location 7 and to reduce the weight. Further, the seat cushion frame 10
In addition to reducing the weight, the cost of the seat springs 17, 17, 17, 17 can be reduced as the workability of mounting the seat springs 17 is improved. Further, the seat cushion frame 10 is provided with the seat spring 17,
17, 17, 17 are hooked and stopped by the cross bar 16, so that even when the cross panel 15 bends under load, the seat springs 17, 17, 1
7 and 17 are prevented from twisting to ensure cushioning performance.

As will be apparent from the specific embodiments of the present invention described above with reference to the drawings, the contents of the present invention will be apparent to those of ordinary skill in the art to which the present invention pertains. , The nature of the invention (nat
ure) and essence (substance)
Then, they are easily embodied in another mode that is objectively recognized as including them. Of course, the content of this invention is
According to the subject of the invention (be commensura
te with), and is essential for the establishment of the invention.

[0013]

As will be appreciated from the foregoing, the seat cushion frame of the present invention comprises a front panel,
Drill holes at appropriate intervals along the length of the main frame, which is framed by the rear panel and the left and right side panels, and secure it between the left and right side panels on the front panel side A cross panel that is mounted in a parallel manner, a cross bar that extends in parallel adjacent to and directly below the cross panel corresponding to the plurality of holes in the cross panel, At the end, fold the hook protruding below the spring plane and hook the hook through the corresponding hole in the cross panel to the cross bar, while attaching the rear end to the rear of the main frame. The seat cushion of the present invention includes a plurality of seat springs fixed to the panel and fixed to the main frame. In the frame, the thickness of the seat is reduced, and even if the thickness is reduced, the strength is secured at the place where the seat spring is attached, and the weight is reduced. It is easy to install because its position is regulated and its workability is improved, and its cost is reduced. Furthermore, when the cross panel bends under load, its seat spring does not twist and cushions. Is secured, and as a result,
Very useful and practical for automotive seats.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a specific example of a seat cushion frame of the present invention applied to a front seat of a passenger car.

FIG. 2 is a partially exploded perspective view showing the seat cushion frame in an enlarged manner.

FIG. 3 is a partially exploded perspective view showing the seat cushion frame further enlarged.

FIG. 4 is a sectional view taken along line 4-4 in FIG. 3;

[Explanation of symbols]

 11 Main Frame 12 Front Panel 13 Rear Panel 14 Side Frame 15 Cross Panel 16 Cross Bar 17 Seat Spring 19 Hole / Slot 20 Hook

Claims (1)

[Claims] 1. A main frame which is framed by a front panel, a rear panel, and left and right side panels, and a plurality of holes are drilled at appropriate intervals in a length direction, and the front panel side has A cross panel fixedly mounted between the left and right side panels and the cross panel corresponding to the plurality of holes of the cross panel.
It is bent back and forth in a plane with a cross bar that extends adjacent to and beneath the panel in parallel, and a front end is bent by projecting a hook below the spring surface and bending the hook to its counterpart in the cross panel. Seat cushion frame including a plurality of seat springs attached to the main frame with the rear end secured to the rear panel of the main frame while hooking the cross bar through a hole to be made .