JP3518829B2 - Vehicle seat cushion - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle seat cushion that has a small number of parts and is easy to assemble.

[0002]

2. Description of the Related Art Conventionally, in seat cushions for automobiles, forklifts, etc., seat cushions for vehicles in which a cushion pad in which a frame-shaped insert wire is embedded and integrated in the bottom are mounted and fixed on a seat frame are widely used. It is used. In this case, in order to fix the cushion pad to the seat frame, a mounting plate with holes for screwing at the required positions of the insert wire is welded so that it projects outward from the bottom of the insert wire, and the seat A small screw or the like will be screwed in from the frame side for fastening and fixing.

However, in the conventional one as described above, since the mounting plate is welded to the insert wire, the number of parts is increased and the welding operation is complicated.
There was a problem that the production cost would be high. Furthermore, as described above, since the mounting plate is projected outward from the bottom of the insert wire, the insert wire is embedded at a position considerably inside the outer circumference of the cushion pad. However, there is also a problem in that it cannot exhibit a sufficient outer shape holding function.

[0004]

SUMMARY OF THE INVENTION The present invention solves the above-mentioned conventional problems and can reduce the number of parts as well as the production cost, and the welding work. It is possible to eliminate troublesome steps such as the above and improve workability. Furthermore, the insert wire can be embedded in a position close to the outer circumference of the cushion pad, so that the insert wire can exert a sufficient outer shape holding function. The present invention has been completed for the purpose of providing a vehicle seat cushion that can be used.

[0005]

SUMMARY OF THE INVENTION In a vehicle seat cushion of the present invention made to solve the above problems, a cushion pad in which a frame-shaped insert wire is embedded and embedded in a bottom portion is mounted on a seat frame. In the fixed vehicle seat cushion, the insert wire is provided with a flat plate portion for fixing, in which a wire material is partially flattened and a hole for screwing is formed in the insert wire, at a required position, and the cushion pad is provided. It is characterized in that the seat frame is fastened and fixed with a screw screwed from the seat frame side toward the screwing hole.

[0006]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, a case where a preferred embodiment of the present invention is applied to a seat cushion of a forklift will be described in detail with reference to the drawings. In the figure, 1 is a cushion pad foam-molded so that a frame-shaped insert wire 3 is embedded and integrated in the bottom portion, 2 is a pipe-shaped seat frame, and 4 is a decoration that is attached so that the outside of the seat frame 2 is covered. It is basically the same as the conventional vehicle seat cushion in that it is a garnish for a vehicle, and the above-mentioned parts are fixed around the seat frame 2.

As shown in FIG. 2, the insert wire 3 is formed by bending a wire material so that a plurality of high step portions 3d for enhancing embedding strength and a low step portion 3c for fixing are connected in series. In each fixing low step portion 3c, a fixing flat plate portion 3a having a screwing hole 3b formed by partially pressing a wire material to flatten it and forming a hole is formed. On the other hand, the seat frame 2 is for inserting a screw corresponding to the screwing hole 3b provided in the flat plate portion 3a for fixing the insert wire 3 outward from the bottom of the pipe material bent in a U shape. A bracket 2a with a hole is arranged outward, and a screw 5 is screwed into a screwing hole 3b from a screw insertion hole of the bracket 2a. Further, the lower brim portion 4a for mounting the seat frame 2 of the garnish 4 described above is provided with a screw insertion hole 4b corresponding to the screwing hole 3b.

As shown in FIG. 3, the thus constructed structure has the cushion pad 1 placed on the seat frame 2 and the garnish 4 arranged below the cushion pad 1, and the screw insertion hole of the mounting bracket 2a. 2b, the screw fixing hole 3b of the insert wire 3 and the mounting hole 4b of the garnish 4 are communicated with each other, and the screw 5 is screwed from the screw inserting hole 4b of the garnish 4 to the screw inserting hole 2b of the bracket 2a.
If it is screwed into the screw hole 3b of the insert wire 3 and fastened and fixed, a seat cushion in which the cushion pad 1, the seat frame 2 and the garnish 4 covering the outside of the seat frame 2 are firmly integrated is formed. Obtainable.

As described above, according to the present invention, the insert wire 3 and the seat frame 2 can be directly fastened to each other, and a mounting plate having a screwing hole formed at a required position of the insert wire 3 as in the conventional case. Since it is not necessary to weld the insert wire so as to project outward from the bottom of the insert wire, the number of parts is small and the assembling work can be performed easily. In addition, since the insert wire 3 can be embedded in a position close to the outer periphery of the cushion pad 1 because there is no mounting plate protruding outward as in the prior art, a sufficient outer shape retaining function can be exerted and the dimensional accuracy is excellent. Therefore, the occurrence of skidding with the garnish 4 can be accurately prevented.

The insert wire 3 is formed by bending the wire material so that a plurality of high step portions 3d for increasing embedding strength are connected to a low step portion 3c for fixing, and a screwing hole 3b is formed. If the fixing flat plate portion 3a is formed on the low step portion 3c, the plurality of high step portions 3d will enhance the feeling of unity with the cushion pad 1 and a high quality product will be obtained. , The outside of the seat frame 2 is covered with a garnish 4 having a screw insertion hole 4b in the lower collar portion 4a, and a screw 5 is screwed from the screw insertion hole 4b of the garnish 4 through the screw insertion hole 2b of the bracket 2a. When screwed into the hole 3b,
The seat frame 2 is not exposed to the outside and has a good appearance.

[0011]

As is apparent from the above description, according to the present invention, the flat plate portion for fixing, in which the wire material is partially flattened at the bottom of the cushion pad and the screwing holes are formed, is provided at a required position. Since the frame-shaped insert wire that is arranged is embedded and integrated, it can be directly fixed to the seat frame, the number of parts can be reduced, and the troublesome process such as welding work can be omitted. The cost can be reduced, the assembly is easy and the workability can be improved. Furthermore, the insert wire can be embedded near the outer circumference of the cushion pad, so that it has a sufficient outer shape retention function. There are various advantages such as being possible. Therefore, the present invention, as a vehicle seat cushion that eliminates the conventional problems, has an extremely great contribution to the development of industry.

[Brief description of drawings]

FIG. 1 is an exploded perspective view showing an embodiment of the present invention.

FIG. 2 is a perspective view showing an insert wire.

FIG. 3 is a cross-sectional view of a main part showing an embodiment of the present invention.

[Explanation of symbols]

1 cushion pad 2 seat frame 2a bracket 2b Screw insertion hole 3 insert wire 3a Plate part for fixing 3b Screw hole 3c Lower part 3d high step 4 garnish 4a Lower collar part 4b screw insertion hole 5 screws

─────────────────────────────────────────────────── ─── Continuation of the front page (58) Fields surveyed (Int.Cl. ⁷ , DB name) A47C 1/00-31/12 B68G 1/00-15/00 B60N 2/00-2/54 B60N 3 / 00-5/00

Claims (4)

(57) [Claims] 1. A seat cushion for a vehicle, wherein a cushion pad (1) in which a frame-shaped insert wire (3) is embedded and integrated in a bottom portion is mounted and fixed on a seat frame (2). Has a flat plate part (3a) for fixing the wire material that is partially flattened and has screw holes (3b) formed in it, and the cushion pad (1) is attached to the seat frame. A vehicle seat cushion characterized by being fastened and fixed to (2) by a screw (5) screwed from the seat frame side toward the screwing hole (3b). 2. The insert wire (3) is formed by bending a wire material so that a plurality of high step portions (3d) for enhancing embedding strength are connected to a low step portion (3c) for fixation. The fixing flat plate portion (3a) having the screw fixing hole (3b) is the low step portion (3c).
The vehicle seat cushion according to claim 1, which is formed on the. 3. The seat frame (2) is provided with a bracket (2) having a screw insertion hole (2b) extending outwardly from the bottom of the seat frame (2).
The vehicle seat according to claim 1 or 2, wherein a) is provided and the screw (5) is screwed into the screw fastening hole (3b) from the screw insertion hole (2b) of the bracket (2a). cushion. 4. The garnish (4) having a screw hole (4b) in the lower flange (4a) covers the outside of the seat frame (2), and the screw (5) is attached to the garnish (4). Screw insertion hole
The vehicle seat cushion according to claim 3, wherein the vehicle seat cushion is screwed into the screw fastening hole (3b) from the (4b) through the screw insertion hole (2b) of the bracket (2a).