JP2549339B2 - Car seat core - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a seat core for an automobile, which is mainly used as a frame inside a seat as a reinforcing material for seats of various automobiles.

[0002]

2. Description of the Related Art Generally, in a vehicle seat as shown in FIG. 5, for example, a cushion having an appropriate elasticity is attached to an inner seat core, and a surface sheet such as leather or cloth is placed on the cushion. It is composed.

Although the above-mentioned sheet core is not shown in the drawing, it is a single plate that is extruded from a synthetic resin (for example, fiber-reinforced plastic), pressed, or hand-made by laminating glass fibers in layers with plastic. It is composed of shaped bodies.

In addition to the recent speeding up of ordinary cars, for example, in the case of race cars, strong lateral G, vertical G or twisting occurs in the seat, and the load on the seat core becomes considerably large, so that the seat core is Demand is increasing to make it stronger.

[0005]

In order to form a sheet core that meets such a demand from a single thin plate-like body, it is conceivable to increase the thickness of the plate-like body, but it is possible to press or extrude. However, there is a problem that the thickness is limited and the weight is increased.

Therefore, at present, a reinforcing flange is provided around the seat core, or a rib is provided on the surface of the seat core. However, this structure disturbs the shape of the seat core and enhances the reinforcement. The effect of was not so improved.

The present invention aims to solve the problems of the prior art by effectively combining at least two members.

[0008]

A vehicle seat core according to the present invention comprises a tubular shell member having an upper opening and a lower bottom plate, and a container-like member inserted into the upper opening of the shell member. A sheet material is formed, and a peripheral edge portion of the upper opening of the shell material and a flange portion formed around the container-shaped sheet material are fixed and formed by an adhesive portion.

[0009]

The container-shaped sheet material is inserted into the reinforced tubular shell material at the periphery and below, and the peripheral edge portion and the flange portion of both are bonded and fixed, so that the sheet core has a double structure. Becomes Therefore, this sheet core is extremely lightweight and strong, and the shape of the sheet material (the shape of the bulging portion) can be freely selected and designed.

According to the second aspect of the present invention, both the sheet material and the shell material are made of fiber reinforced plastic, and at least the inner surface of the bulging portion of the sheet material and the outer peripheral surface of the shell material have a smooth surface. The parts do not impair the aesthetic appearance even if the structure is such that a part of the sheet core is not covered with the surface layer sheet.

Further, as in the invention of claim 3, if so as to form a bottom hole in a substantially central portion of the bottom plate of the lower shell member, the bulging from the bottom hole bulges of the sheet material to lower external Therefore, the shape of the bulging portion can be freely designed.

Further, as in the invention of claim 4, when the urethane foam is filled from the gap between the bottom hole below the shell material and the bulging portion of the sheet material, the shapes of the shell material and the sheet material are stabilized. The strength of the sheet core itself is further improved.

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail with reference to the drawings.

1 and 2 show a sheet core 1 according to the present invention, which is composed of two members, a sheet material 2 and a shell material 3. As shown in FIG. 2, the sheet material 2 is in the shape of a container, and a backrest portion and a footrest portion are formed in front of and behind the inner surface of the bulging portion 7 in the substantially central portion thereof.

The sheet material 2 is formed of, for example, a fiber reinforced plastic, and the back surface portion 10, that is, the exposed surface of the glass fiber is directed downward, and the surface portion 9 thereof, that is, the gel coat and the die-extracting surface to which the release agent is applied, are formed. It is directed upwards.

A flange 4 is formed on the periphery of the open portion of the sheet material 2 so as to spread outward.

The shell material 3 has an opening on the upper side, and a bottom plate 6 is integrally formed on the lower side. In this embodiment, a bottom hole 8 is formed at a substantially central portion of the bottom plate 6. .

Like the sheet material 2, the shell material 3 is also formed of, for example, fiber reinforced plastic, and the back surface portion 12, that is, the exposed surface of the glass fiber forms the inner peripheral surface, and the surface portion 1 thereof.
0, that is, the die-extracted surface coated with the gel coat and the release agent forms the outer peripheral surface.

A peripheral portion 11 having a predetermined wall thickness is formed around the opening of the shell material 3.

FIG. 3 shows an assembly view of the sheet material 2 and the shell material 3 described above. By inserting the sheet material 2 into the opening of the shell material 3 from above, the periphery of the sheet material 2 is shown. The provided flange 4 is brought into contact with the opening peripheral portion 11 of the shell material 3. After that, the abutting portion between the flange 4 and the peripheral edge portion 11 is adhered using an adhesive or the like to form the adhesive portion 5 over the entire peripheral edge.

The bonded sheet core is shown in FIG. 1 and its bottom surface is as shown in FIG. In this embodiment, as is apparent from FIGS. 2 and 4, the bottom plate 6 is provided with a bottom hole 8, and the bulging portion 7 of the sheet material is exposed from the bottom hole 8 so as to look downward. .

In this way, the container-shaped sheet material 2 is inserted into the reinforced tubular shell material 3 at the periphery and below, and the peripheral edge portion 11 and the flange portion 4 of both are bonded and fixed. The sheet core 1 has a double structure. for that reason,
This seat core is extremely lightweight yet strong.

Since the sheet material 2 is housed in the tubular shell material 3, the seat portion may be deepened or shallowed, or the shape of the bulging portion may be changed, as long as the volume of the shell material 3 allows. Can be designed freely.

Further, in this embodiment, since the bottom hole 8 is formed in the bottom plate 6 of the shell material 3 as described above, the bulging portion 7 can be projected even below the shell material 3. That is, FIG.
As described above, it is possible to change the shape of the sheet material 2 by effectively utilizing the lower space of the seat formed by the lower mounting bracket 13, the guide rail 14, and the like.

Further, both the sheet material 2 and the shell material 3 are made of fiber reinforced plastic, and at least the inner surface of the bulging portion 7 of the sheet material 2 and the outer peripheral surface of the shell material are formed into smooth surface portions 9 and 10. Then, the sheet core 1 becomes a smooth surface layer except for the bottom surface thereof, and therefore, even if the core sheet 1 is partially exposed and the surface layer sheet 15 is covered, the appearance is not spoiled.

Further, if foamed urethane or the like is filled from the gap between the bottom hole 8 below the shell material 3 and the bulging portion 7 of the sheet material 2, the shapes of the shell material 3 and the sheet material 2 are stabilized, and the sheet The strength of the core 1 itself is further improved.

Further, in the present invention, at least the bottom plate 6 is present on the bottom surface of the shell material 3. The bottom plate 6 not only improves the strength of the seat core 1, but also the mounting portion of the mounting bracket 13. As a result, it has an effective reinforcing function.

The present invention is not limited to the above embodiments, and it is obvious that ordinary plastics may be used instead of fiber reinforced plastics.

[0029]

[Brief description of drawings]

FIG. 1 is a perspective view of a seat core of the present invention.

FIG. 2 is a sectional view taken along line AA of FIG.

3 is an assembly view of the seat core of FIG. 1. FIG.

4 is a bottom perspective view of the seat core of FIG. 1. FIG.

FIG. 5 is a perspective view of the completed seat of the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 sheet core 2 sheet material 3 shell material 4 flange 5 adhesive part 6 bottom plate 7 bulging part 8 bottom hole 9 front surface part 10 back surface part 11 peripheral edge 12 back surface part 13 mounting bracket 14 guide rail 15 surface layer sheet

Claims (4)

(57) [Claims] 1. A peripheral edge of an upper opening of a shell material, which comprises a cylindrical shell material having an upper opening and a lower bottom plate, and a container-shaped sheet material inserted into the upper opening of the shell material. A seat core for an automobile, wherein the portion and a flange portion formed around the container-shaped sheet material are fixed and formed by an adhesive portion. 2. The sheet material and the shell material are both formed of fiber reinforced plastic, and at least the inner surface of the bulging portion of the sheet material and the outer peripheral surface of the shell material are smooth surface portions. The above-mentioned automobile seat core. 3. A bottom hole is formed at a substantially central portion of the bottom plate below the shell material so that the bulging amount of the bulging portion of the sheet material can be allowed. The automobile seat core according to 1. 4. An automobile seat according to claim 3, wherein urethane foam is filled through a gap between the bottom hole below the shell material and the bulging portion of the sheet material to eliminate a gap between the shell material and the sheet material. Core.