JPS6328653Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an elastic support for supporting a seat pad in a seat of a vehicle or the like.

Conventionally, in vehicle seats, a metal spring is stretched around the seat frame, a seat pad is placed on top of this, and the seat cushion is covered with an outer skin.
It was used to make up seat backs, etc., but in recent years seats have tended to be thinner, so seat pads have been made relatively thin.

However, when the seat pad is made thin, problems arise in terms of the feeling of bottoming, elasticity, discomfort, etc., and it is difficult to eliminate these problems.These are important factors in evaluating the ride comfort of the seat. is desired.

Therefore, the present invention was developed in view of this point, and in order to alleviate the feeling of bottoming when an overload is applied and to obtain an elastic feeling according to the load, the support body that supports the seat pad is made of elastic material having an opening. It is constructed by inserting elastic bodies with different elastic constants into a hollow body in a replaceable manner,
This is designed to improve riding comfort by absorbing the elasticity and shock when seated.

An embodiment of the present invention will be described below with reference to the drawings.

In the figure, reference numeral 1 indicates a vehicle seat to which the present invention is applied, and an elastic support 5 according to the present invention is used in the seat cushion 2 and seat back 3. Further, the elastic support 5 can be similarly used for the headrest 6 attached to the upper part of the seat bag 3.

This elastic support body 5 has an opening 11b formed in a hollow part 11a of an elastic hollow body 11 molded from a resin material, such as a hard thermoplastic resin or a synthetic rubber material. Various elastic plate-like bodies 12, 12 with different
a, 12b, 12c... are inserted interchangeably. In addition, a protective material can be attached to the elastic support 5 to restrict the amount of deflection if necessary, and the shape of the hollow body 11 can be designed with a degree of freedom.

The seat cushion 2 of this example formed using the elastic support body 5 configured in this way has the elastic hollow body 1
1 is a pan structure frame 15 having a large window hole 13 in the center of the bottom and a horizontally long opening 14 on the entire surface.
The seat pad 16 is stretched over the hollow body 11 so that the opening 11b of the hollow part 11a faces the opening 14, and the outer periphery of the seat pad 16 is covered with a skin 17 together with the frame 15. Also, slide adjustment devices 18 are provided on both sides of the lower surface of the frame 15.
Install both slide rails 18a and 18b.

The elastic body 12 is attached to the hollow part 11a of the hollow body 11 of the seat cushion 2 formed in this way.
5 through the hollow opening 11b to maintain the necessary elastic force.

The elastic body 12 is a plate-like body 12a whose both sides 12a' are bent to maintain elasticity, and a foam molded body with appropriate through-holes 12b' formed therein to maintain air permeability and adjust shrinkage elasticity. cushion body 12b,
Elastic protrusions 12c′ of appropriate sizes are formed on the surface of the foamed molded product.
It is possible to use cushion bodies 12c with different elastic constants, such as a cushion body 12c formed with 12c'' to change the elastic feel, or a spring-loaded cushion body 12d formed by simultaneously foaming a spring body 12d'.

Further, the elastic body 12 may be formed into a curved shape, the thickness may be different between the front and rear parts, or the both sides may be raised. In this case, the hollow portion 11a of the hollow body 11 is formed in a shape that matches the shape of each elastic body 12.
When formed into a curved shape, the hollow body 11
Since it has elasticity, it will be deformed into the same shape as the elastic body by inserting the elastic body.

In order to prevent unnecessary movement of the elastic body 12 inserted into the hollow portion 11a of the hollow body 11 in this manner, the bolt 19 is passed through and fastened near the opening 11b of the hollow body 11. In this case, Natsuto 20
is fixed to one side of the hollow body 11. Also, instead of the bolt 19 for fixing the elastic body 12, an opening 11b of the hollow body 11a or a frame 15 is used.
A lid body may be attached to the opening 14.

Furthermore, a large number of through holes or strip-shaped elongated holes 21 are formed on the upper surface side of the hollow part 11a of the hollow body 11 (FIG. 4A), and the circumferential surface is formed in a zigzag shape 22 (FIG. 4B). ) This increases the degree of freedom of elastic deformation of the hollow portion 11a.

In the seat cushion 2 described above, the hollow body 11 of the support body 5 is stretched on the frame 15, but this hollow body 11 is directly stretched and fixed between both slide rails 18a and 18b of the slide adjustment device 18. You can.

Further, in the seat bag 3, the support body 5 constructed as described above is directly stretched and fixed to the bag frame 31. The support body 5 used for this seat bag 3 is somewhat different in size or shape from the support body used for the seat cushion 2, but the structure is the same, so a description thereof will be omitted.

Furthermore, when the support of this example is used for the headrest 6, the structure and attachment to the headrest frame 61 are the same, except that it is smaller than the support used for the seat cushion 2 and the seat bag 3.

As described above, according to the present invention, the support body that supports the seat pad in the seat of a vehicle, etc. is formed by inserting elastic bodies with different elastic constants into the hollow part of the elastic hollow body, so that the weight of the seated person Alternatively, by replacing and inserting elastic bodies according to your preference, even if the seat pad is thin, the elasticity and feeling of bottoming out can be alleviated, and the seat characteristics can be varied over a wide range, significantly improving ride comfort. Since the support, particularly the hollow body itself, has elasticity and appropriate rigidity, it can be used directly as a seat frame, which has the effect of simplifying the seat frame structure.

[Brief explanation of the drawing]

Fig. 1 is a partially cutaway perspective view of a vehicle seat to which the present invention is applied, Fig. 2 is an enlarged cross-sectional view of the seat cushion of the same seat, Fig. 3 is an enlarged longitudinal sectional view of the seat cushion, and Fig. 4 is an enlarged longitudinal sectional view of the same. FIG. 5 is a cross-sectional view of a portion of another example of the hollow body, and FIG. 5 is a perspective view of each example of the elastic body. In the figure, 1 is a seat, 2 is a seat cushion, 3 is a seat bag, 5 is a support body, 11 is a hollow body, 11
a is a hollow portion, 11b is an opening, and 12 is an elastic body.

Claims (1)

[Claims for Utility Model Registration] An elastic support body in which a plurality of elastic plate bodies having different elastic constants are exchangeably inserted into an elastic hollow body having an opening, a frame on which the elastic support body is placed, and an elastic support body. 1. A vehicular seat comprising a seat pad disposed above the seat pad, the overall flexibility of the seat pad being adjusted to be strong or weak by changing the elasticity of the elastic support.