JP2003199644A - Seat for vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a seat for vehicles which are obtained by forming all of parts constituting the seat of the same materials and makes the respective parts recyclable all together without disassembling and discriminating the parts by each of materials like heretofore. <P>SOLUTION: The seat consists of a sheet pad 1, sheet cover 2 and shield 3 which are made of synthetic resins of the same material. The expansion rates of the seat pad 1 are partially varied in such a manner that the hardness of the areas requiring rigidity increases. Olefinic synthetic resins like, for example, polypropylene resins, are usable as the synthetic resins of the same material. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle seat in which all parts constituting the seat are made of the same material so that the whole seat can be recycled without disassembling.

[0002]

2. Description of the Related Art Recently, as part of resource saving, it has been attempted to recycle and reuse sheets of automobiles without discarding them. Such a vehicle seat is usually composed of a seat pad, a seat cover that covers the surface of the seat pad, and a shield that covers the side surface of the seat pad. Moreover, each of these parts
For example, the seat pad is made of urethane resin foam,
It is usual that the seat cover is made of a polyester resin skin material and the shield is made of an ABS resin molded product, so that each component is made of a different material.

Therefore, in order to recycle, the seat pad, the seat cover, and the shield are disassembled for each material.
There is a problem in that it is necessary to separate them, and such disassembling / separating work has many steps and is complicated and inferior in workability. Furthermore, there is a problem that the cost required for recycling becomes high, which becomes a factor that hinders promotion of recycling.

[0004]

DISCLOSURE OF THE INVENTION The present invention solves the above-mentioned conventional problems and disassembles each part into individual materials as in the prior art by using the same material for all parts constituting the seat. The present invention has been completed for the purpose of providing a vehicle seat that can be recycled as a whole without being separated and disassembled and that can be easily and inexpensively recycled.

[0005]

The vehicle seat of the present invention made to solve the above-mentioned problems includes a seat pad,
The seat cover and the shield are made of the same material of synthetic resin, and the foaming rate of the seat pad is partially different so that the hardness of a portion where rigidity is required is increased. It is a thing.

[0006]

BEST MODE FOR CARRYING OUT THE INVENTION Preferred embodiments of the present invention will be described below with reference to the drawings. The drawings show the case where the present invention is applied to a vehicle seat, and in FIG. 1, 10 is a seat cushion 10a and a seat back 1
The sheet consisting of 0b is shown. Further, FIG. 2 shows AA of FIG.
As shown in a sectional view, the seat 10 is composed of a seat pad 1, a seat cover 2 and a shield 3. The above construction is basically the same as that of a conventional vehicle seat of this type.

In the present invention, the seat pad 1, the seat cover 2 and the shield 3 are made of the same synthetic resin material, and the hardness of the portion of the seat pad 1 where rigidity is required is high. The characteristic configuration is that they are partially different. More specifically, a seat pad 1 made of an olefin synthetic resin foam, and a seat cover 2 made of an olefin synthetic resin integrally welded to the surface of the seat pad 1,
The seat pad 1 is formed of a shield 3 made of an olefinic synthetic resin integrally welded or insert-molded on the side surface. That is, by making the seat pad 1, the seat cover 2, and the shield 3 all made of the same material of olefinic synthetic resin, disassembling / separating and disassembling each component for each material as in the conventional case when recycling. Instead, it is entirely recyclable.

As the olefin-based synthetic resin, for example, polypropylene resin can be used, and in the case of the seat pad 1, a foamed body obtained by expanding polypropylene resin beads 45 to 60 times is used. Note that, as shown in FIG. 2, the foaming rate of the seat pad may be partially different so that the hardness of the portion where rigidity is required is increased. For example, in the illustrated example, the central portion 1a of the seat surface has a size of 45 to 6 suitable for maintaining cushioning properties.
Made of 0-fold foam, 1 on both left and right sides of the seat
b is made of a foam that is foamed 20 to 40 times to increase hardness, and further, is a foam that is foamed 5 to 15 times so that the left and right side wall portions 1c of the seat surface can maintain rigidity. is there.

As the seat cover 2, a skin material made of, for example, polypropylene resin can be used, and the seat cover 1 made of the same material is pulled in by welding, or the hem is put together. As the shield 3, a molded product made of polypropylene resin, for example, is used, and is integrated with the seat pad 1 made of the same material by welding or by insert molding.

The above-mentioned structure comprises a seat pad 1 made of a foam of an olefin synthetic resin, a seat cover 2 made of an olefin synthetic resin integrally welded to the surface of the seat pad 1, The seat pad 1 is composed of a shield 3 made of an olefinic synthetic resin integrally welded or insert-molded on the side surface,
By making all of the seat pad 1, the seat cover 2, and the shield 3 from the same material of olefinic synthetic resin, when recycling, each part is totally disassembled without disassembling / separating each material separately. It can be recyclable. As a result, the recycling work can be made extremely easy, which can greatly contribute to resource saving.

[0011]

As is apparent from the above description, according to the present invention, all the parts constituting the seat are made of the same material, so that the parts are completely disassembled and disassembled separately for each material as in the conventional case. It can be made recyclable, and the recycling work can be made easy and inexpensive. Therefore, the present invention has an extremely great contribution to industrial development as a vehicle seat that eliminates the conventional problems.

[Brief description of drawings]

FIG. 1 is a front view showing an embodiment of the present invention.

FIG. 2 is a sectional view showing an embodiment of the present invention.

[Explanation of symbols]

1 seat pad 2 seat cover 3 shield 10 sheets

   ─────────────────────────────────────────────────── ─── Continued front page    F-term (reference) 3B084 CA04                 3B087 DE05                 3B096 AB07 AB08 AD06 AD07

Claims (2)

[Claims] 1. A seat pad, a seat cover, and a shield are made of a synthetic resin of the same material, and the foaming rate of the seat pad is partially different so that the hardness of a portion where rigidity is required is increased. A vehicle seat characterized by the above. 2. A synthetic resin of the same material is an olefin type, a seat pad made of a foam of an olefin type synthetic resin, and a sheet made of an olefin type synthetic resin integrally welded to the surface of the seat pad. The vehicle seat according to claim 1, comprising a cover and a shield made of an olefinic synthetic resin integrally welded or insert-molded on a side surface of the seat pad.