JPH058123Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] This invention relates to a foamed resin molded sheet structural member of an integrally foamed molded product used in various sheet devices.

[Prior Art] Conventionally, in vehicle seat devices, resin molded seat structures for various vehicles have been common, in which a seat cushion, a seat back cushion, and a headrest are integrally assembled. In particular, seat cushions used in the foam resin molded seat structure of vehicles,
There are many ideas regarding seat cushion materials.
Foamed resin molded sheet products used in general seat cushions and their seat frames are cut along the resin molding development line of a flat berm made of palm wood, and the core is made of palm wood. Sometimes used for wood. There are many foam molded products that are individually molded using conventional vinyl foam resin materials. This is because the sheet back cushion of the foamed resin molded product is secured and maintained by the toughness of the thin, flat, palm-shaped material.

In addition, the gaps between the fibers of the palm wood ensure proper seat breathability and heat retention performance, and the seated person's seating comfort is also good.

However, thick and flat palm-shaped materials have the disadvantage of lacking flexibility, so pinerests for seats made of thick and flat palm-shaped materials are divided into trapezoidal shapes in the seat frames of several seat configurations. The components are connected by a foldable skin material and are housed in the seat frame to constitute a seat cushion material.

By the way, when the seat frame of a seat equipped with the seat cushion material is installed in a horizontal position, the seat can be folded from the horizontal sleeping position to the subsequent raised state. When bent, each element of these types of thick, flat palm-shaped members described above is folded into a dogleg shape from the aforementioned connecting portions.

However, each element of this thick, flat palm-shaped member, on the closed side of its fold,
The urethane cushioning material that covers this palm-shaped member is sandwiched between the flat palm-shaped members, and is not durable enough to withstand repeated folding operations because it is connected only by the skin material. Moreover, in the opening side part, a gap is formed in the width direction of the foamed resin molded product with the above-mentioned structure, which makes it difficult to fit the seated person and make the seat feel uncomfortable.
In the sitting position, the above-mentioned connecting portion of the flat palm-shaped member is too flexible, and this causes problems such as a difference in level at this connecting portion when used in the seating position.

[Purpose of the invention] This invention was devised in view of the above-mentioned conventional disadvantages, and the purpose of this invention is to:
When the foamed resin is integrally molded, the flat part is molded into a berm-like plane, and the armrest part and the seat back cushion including the headrest part are formed, and V-shaped grooves and thin-walled hinges are formed at key points at the bends of the seat cushion. It is an object of the present invention to provide a molded sheet structural member which is configured by being provided with a molded sheet and folded when being set into a sheet.

[Structure of the invention] The gist of the foam resin-molded sheet structural member of this invention is that in the seat structural member, the seat back cushion, the seat cushion, and the armrest are integrally molded with foam resin, and the seat back cushion is The V-shaped groove and thin-walled hinge provided at the joining position of the seat back cushion and the armrests on both sides make it bendable. The seat frame is constructed by bending with these thin hinges and fixing the lower end of the armrest part and both side ends of the seat cushion with fasteners. The cushion body element is integrally foam-molded as a foamed resin molded mattress on the frame and is bent into a dogleg shape from the connecting portion to form a sheet.

[Example] The drawings show an example of the foamed resin molded sheet structural member of this invention, FIG. 1 is a developed view showing the developed shape line for molding with the resin molded sheet of this invention, and FIG. FIG. 3 is an overall perspective view of the assembled finished product of this resin molded sheet, and FIG. 4 is a cross-sectional view of the molded sheet taken along the line A-A in FIG. 1. , FIG. 5 is a cross-sectional view of the assembled resin molded sheet assembly along the line BB in FIG. 3.

First, the foam resin molded sheet bag cushion 1 of this invention doubles as a seat bag cushion in which a flat portion 21 constituting the core material of the seat bag is wound, as a sheet foam resin molded mattress. 3 and 3' are sheet cushions, and 3 and 3' are skin materials provided with predetermined specifications, such as vinyl chloride material, to cover the flat portion 21;
3'' is a fastener, and 4 is a foamed resin molded seat frame that covers the flat portion 21.

Next, to explain the developed shape of the developed shape line S for molding, 21 is the flat part, one of which is connected to both the left and right sides of the seat back cushion 1 as the armrest part 7,
The lower part of the center position in these developed views S is where the seat cushion 2 will be.

5 is a horizontal V-shaped groove and a thin hinge on the lower side of the center position, and 5a on both the left and right sides of this flat part 21 are a vertical V-shaped groove and a thin hinge, one of which is a seat back cushion. 1 is the armrest part 7, and in the V-shaped groove 5 below the center position in the diagram of this developed shape line S,
Both vertical V-shaped grooves 5a, horizontal V-shaped grooves 5b, and concave countersunk grooves 5 arranged at central positions of each component of the sheet rather than at key points of each flat part of the patch material.
c and 5c are recessed and installed in various sizes. Further, 6 is a headrest with a bulging form at the left and right positions, S is a developed shape line for molding having the above-mentioned shape, and the line diagram S of the developed shape line of this invention is characterized.

Next, if we explain the V-shaped groove 5 of the flat sheet foam resin molded pinerest with reference to FIG. 5a, 5a
The lower vertical V-shaped groove 5a corresponds to the thin-walled hinge position, and the horizontal V-shaped groove 5b is bridged in the horizontal direction as a thin-walled hinge between them. Recessed countersunk grooves 5c, 5c are recessed into the required size and size at important central points of the patch material.

In this combined state, in a set of resin-molded sheet structural members 10, the seat back cushion 1, the seat cushion 2, and the armrest portion 7 are integrally molded with foamed resin, and the seat back cushion 1 and the seat cushion The V-shaped groove 5b and the thin hinge provided at the joint position with the seat back cushion 1 and the armrest parts 7 on both sides make it bendable. The armrest portion 7 is configured so that it can be bent at the
A seat frame 4 is constructed by fixing the lower end of the seat cushion 2 and both side ends of the seat cushion 2 with fasteners 3''.

According to these configurations, the role that the seat cushion 2 of the automobile seat should play as a material becomes clear, and a urethane foam cushioning material covering the outer periphery of the seat cushion 2 is provided, and a vinyl chloride skin material 3 is provided around the outer periphery. It is covered with a seat back cushion cover 3' such as.

A conventional vacuum forming method is preferably used for forming the cover 3' of the sheet backing cover 3'.

In addition, regarding the arrangement of the seat back cushion 1 covered with the seat back cushion cover 11, the V-shaped groove 5, the left and right vertical V-shaped grooves 5a,
5a, a horizontal V-shaped groove 5b, a concave dish groove 5c, and headrests 6, 6 at left and right positions.

After that, this sheet is folded from a horizontal sleeping position to a raised state after reclining to form a foamed resin molded sheet structural member 10.
A molded sheet structure is completed.

In addition, after selecting the width of the seat frame 4 mentioned above, the distance and width position of the vertical V-shaped grooves 5a, 5a on both sides of the seat cushion 2 of this invention are determined based on the physique of the occupant, especially the width of the hips. If they are made to match, it will be possible to match the body shape of the person sitting, and it will also be possible to easily fit the person's body well when sitting, thereby optimizing the sitting posture.

[Function] As described above in detail, the resin molded seat structure for an automobile of this invention has vertical V-shaped grooves 5a, 5a on both sides of the seat cushion 2,
In addition, long horizontal V-shaped grooves 5b are arranged, and these vertical and horizontal V-shaped grooves 5a are configured to be bendable with thin hinges, and after that, this seat can be changed from a horizontal sleeping position to a sitting position. When bent toward the raised state, each element of the pine tress in both forms functions as a foamed resin molded sheet structural member 10 that can be bent into a dogleg shape from the above-mentioned connecting portion. fulfill

[Effects of the invention] As explained above, the effects obtained by adopting the molded sheet structure of the foamed resin molded sheet structural member of this invention are as follows.

That is, in the seat structural member of this invention, the seat back cushion, the seat cushion, and the armrest are integrally molded with foamed resin, and a V-shaped groove is provided at the joining position of the seat back cushion and the seat cushion. It is configured so that it can be bent using thin-walled hinges, and it is also configured so that it can be bent using thin-walled hinges and a V-shaped groove provided at the joining position of the seat back cushion and the armrests on both sides. A seat frame is constructed by fixing the lower end of the armrest part and both side ends of the seat cushion with fasteners, and the cushion body element, which is integrally foam-molded as a foamed resin molded pinerest on the integrally molded seat frame, is a connecting part. Since a foam resin molded sheet structural member is provided which is bent into a dogleg shape to form a sheet, the flat part of the palm that is bent in at least one direction by this integrally molded frame structural member is provided. Although it is a simple structure in which a V-shaped groove is provided on the surface of the shaped member, the flat part of the shaped member can be provided with flexibility, and the durability of the bent portion of the pinerest can also be improved.

Moreover, by providing a V-shaped groove in the flat member held in the flat part, the elasticity is increased, and with the aid of the shape of the concave dish part, its elasticity is increased, and the elasticity of this pine tress is increased. Coupled with the fact that an air layer is formed between the cushioning materials, the cushioning properties of the sheet and the prevention of slippage of the sheet cushion are achieved, and heat retention and breathability can be efficiently improved. can.

[Brief explanation of the drawing]

The drawing shows one embodiment of this invention.
The figure is a developed view showing the developed shape line for molding with the resin molded sheet of this invention, Figure 2 is a perspective view of the whole after bending with this resin molded sheet, and Figure 3 is the finished product of this resin molded sheet assembly. Overall perspective view, Figure 4 is the first
FIG. 5 is a cross-sectional view of the assembled resin molded sheet taken along the line B-B in FIG. 3. FIG. 1... Seat cushion, 2... Seat cushion, 3... Skin material, 4... Urethane foam, 5... V-shaped groove, 6... Head rest, 7...
... Armrest part, 10... Foamed resin molded sheet structural member, S... Expanded shape line for molding.

Claims (1)

[Scope of utility model claims] In the seat structural member, the seat back cushion, the seat cushion, and the armrest are integrally molded with foamed resin, and a V is provided at the joint position of the seat back cushion and the seat cushion.
It is configured so that it can be bent using a V-shaped groove and thin-walled hinges, and it is also configured so that it can be bent using a V-shaped groove and thin-walled hinges provided at the joining positions of the seat back cushion and the armrests on both sides. A seat frame is constructed by bending and fixing the lower end of the armrest part and both side ends of the seat cushion with fasteners, and the cushion body is integrally foam-molded as a foam resin molded pine tress on this integrally molded seat frame. The element is a foamed resin molded sheet structural member that is folded into a dogleg shape from the connecting part to form a sheet.