JP2549110Y2 - Frame structure of seat cushion in automobile seat - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a frame structure of a seat cushion in a vehicle seat having sufficient rigidity to withstand loads from left and right directions.

[0002]

2. Description of the Related Art Conventionally, as shown in FIGS. 4 and 5, a frame structure of a seat cushion in an automobile seat includes a bread frame 1 constituting a seat cushion, and left and right outer surfaces 11, 11 of the frame 1. Along and in front of,
The rear plates 21 and 22 are fixed to the frame 1 and the base plates 2 and 2 for the reclining device. To prevent the deformation of the frame 1 at the time of collision, the reinforcing plate 3 is provided inside the frame 1 along the left and right directions. To reinforce the frame 1. Also, the left and right base plates 2,
In order to enhance the rigidity between the two, the base plates 2 and 2 have front and rear portions 21 and 22 attached to the frame 1 by bolts 5, 5. Fastened and fixed. In the drawing, reference numeral 6 denotes a reclining device. The reclining device 6 includes an upper arm 7 fixed to a seat cushion, a lower arm 8 to which the upper arm 7 is rotatably mounted and fixed to the base plate 2, and an upper arm 7. Spring 9 to bias
And the operating lever 1 for releasing the locked state of the upper arm 7
It has zero.

Accordingly, a reinforcing plate 3 for preventing deformation of the frame 1 is provided inside the frame 1 and
In order to enhance the rigidity between the base plates 2 and 2, the base plates 2 and 2 are
, And there is a problem that the number of parts is large and the cost is high. In addition, since the number of parts is large, it takes a long time to fix the base plates 2 and 2 to the frame 1, and there is a problem that workability is deteriorated.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problem, and has as its object to provide a frame structure of a seat cushion in an automobile seat with reduced number of parts and good workability.

[0005]

According to the present invention, a U-shaped reinforcing member in which both ends of a pipe are crushed into a flat plate to form a bent portion is provided between the left and right side surfaces of the frame. The base plate is fixed to the frame via a bent portion of the reinforcing member.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment according to the present invention will be described with reference to FIGS. 1 to 3. The same members as those in the conventional structure are denoted by the same reference numerals, and description thereof will be omitted.

FIG. 1 is an exploded view of the structure of the present invention.
Numerals 0 and 40 are pipes. Both ends of the pipe are crushed into a flat plate shape, and both ends are bent vertically to form bent portions 31 and 41. The reinforcing members 30 and 40 have a U-shape,
The length of the bent portions 31 and 41 is the same between the left and right outer surfaces 11 and 12 of the frame 1. Reinforcement 30, 40
Are arranged along the front and rear bottom surfaces of the frame 1, and the bent portion 3
Reference numerals 1 and 41 are welded to the left and right outer surfaces 11 and 12 of the frame 1.

As shown in FIGS. 1 and 2, the base plates 2 and 2 are provided with the reinforcing members 30 and 40 fixed to the front and rear of the frame 1 and then the bent portions 31 of the reinforcing members 30 and 40 are bolted. , 41 and fastened to the frame 1.

[0009] The frame structure according to the above-described structure includes a reinforcing member 3
Because 0 and 40 are made of metal pipes,
The frame 1 is strong against loads from left and right directions, and the rigidity of the frame 1 is improved against the load at the time of a collision, so that the deformation of the frame 1 can be prevented. Further, since the reinforcing members 30 and 40 are fixed to the frame and the rigidity of the frame 1 is improved, the thickness of the frame 1 can be reduced, and the weight of the seat cushion can be reduced. In addition, since the reinforcing members 30 and 40 do not occupy too much space, they do not hinder the lifter mechanism or the like attached to the frame 1.
The in-car space can be used effectively. Further, the reinforcing members 30, 40
Can be easily processed, so that the reinforcing members 30, 4
0 can be provided at low cost.

In the above embodiment, the reinforcing members 30 and 40 are arranged outside the frame 1 from the bottom surface of the frame 1 to the outside surface, but are arranged inside the frame 1 from the bottom surface to the inside surface. Can also.

[0011]

According to the present invention, a U-shaped reinforcing member formed by bending both ends of a pipe into a flat plate to form a bent portion is provided between the left and right sides of the frame, and the reinforcing member is bent. Since the base plate is fixed to the frame via the portion, the reinforcement of the frame and the rigidity between the base plates can be enhanced by the reinforcing material. Therefore, it is not necessary to provide members for reinforcing the frame and reinforcing the rigidity, and the number of components can be reduced, and the cost can be reduced. Further, since the number of parts is released, the work for fixing the base plate to the frame is facilitated, and the workability is improved.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of a frame structure of a seat cushion using the structure of the present invention.

FIG. 2 is a perspective view in which the frame structure shown in FIG. 1 is assembled.

FIG. 3 is a partial sectional view taken along the line III-III shown in FIG. 2;

FIG. 4 is an exploded perspective view of a frame structure of a seat cushion using a conventional structure.

5 is a partial sectional view similar to FIG. 3 when the frame structure shown in FIG. 4 is assembled.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Pan type frame 2 Base plate for reclining device 30, 40 Reinforcement material 31, 41 Bent part

Claims (1)

(57) [Scope of request for utility model registration] 1. A pan-shaped frame constituting a seat cushion, and a base plate for a reclining device provided along the left and right outer surfaces of the frame and having front and rear portions fixed to the frame. A U-shaped reinforcing member formed by bending both ends of a pipe into a flat plate to form a bent portion is provided between the left and right side surfaces of the frame, and the base plate is attached to the frame via the bent portion of the reinforcing material. A frame structure of a seat cushion in an automobile seat, which is fixed.