JPH0533305Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial field of application] The present invention relates to a skin integral foam used for seats, vehicle seats, etc. To explain in more detail:
A skin material is provided in the lower mold of a foam molding mold comprising a lower mold and an upper mold, and a stock solution of foamed synthetic resin is injected into the inside of the lower mold, and the foam is foam-molded integrally with the skin material. The present invention relates to integrally foamed skin material.

[Conventional technology]

BACKGROUND ART Foams with integral skin materials have been used for seats, vehicle seats, and the like.

As shown in FIGS. 7 and 8, this skin material integral foam body 1 is formed from a skin material 2 and a foam body 3, and the skin material 2 is integrally joined to the foam body 3 during foam molding of the foam body 3. .

The skin material 2 of this skin material integrated foam 1 is a foam 3
It covers the outer side of the skin material 2 and is longer than the lower end of the foam body 3, and the end 2a of the skin material 2 is fixed to the seat frame (not shown) by fixing means such as a clip.

[Problem that the invention attempts to solve]

The conventional skin material integrated foam 1 has the disadvantage that it requires processing of the end 2a of the skin material 2, and cannot be easily and quickly attached to the seat frame side. In order to completely cover the outer part of the foam 3, the amount of skin material 2 used increases, and the skin material 2 in the part corresponding to the outer part of the foam 3 is likely to wrinkle or deform, which may impair the appearance. It had

The purpose of this invention is to significantly improve work efficiency without requiring end treatment of the skin material, to significantly reduce the amount of skin material used and reduce costs, and to eliminate wrinkles on the outer part of the skin material. To provide an integrated skin material foam that has no risk of deformation, has an excellent appearance, and is highly economical.

[Means for solving problems]

The present invention was made in view of the above-mentioned problems, and consists of disposing a skin material on the lower mold of a foam molding mold comprising a lower mold and an upper mold, and injecting a stock solution of foamed synthetic resin into the inside of the lower mold. In the skin-integrated foam body formed by integrally foam-molding the foam and the skin material, the end of the skin material is embedded inside the foam.

[Effect]

According to the present invention, since the ends of the skin material are buried inside the foam, there is no need to process the ends of the skin material, and the skin material can be assembled easily and quickly on the seat frame side. Since the outer part of the foam is not completely covered, the amount of skin material used can be significantly reduced, and there is no risk of wrinkles or deformation.

〔Example〕

DESCRIPTION OF THE PREFERRED EMBODIMENTS The skin integral foam according to the present invention will be described in detail below with reference to the drawings.

FIGS. 1 and 2 schematically show an embodiment of the present invention, and this skin material integral foam 11
includes a skin material 12 and a foam body 13 integrally formed with the skin material 12.

The end 12a of the skin material 12 is buried inside the foam 13 at an intermediate position in the height direction of the foam 13. The foam 13 is formed by mixing an appropriate coloring agent into a stock solution of foamed synthetic resin, and improves the appearance of an outer portion 13a of the outer portion of the foam 13 that is not covered with the skin material 12.

Next, a method of manufacturing the skin integral foam 11 will be explained with reference to FIG.

The foaming mold 21 includes a lower mold 22 and an upper mold 23 fitted to the lower mold 22, and a skin material 12 is disposed in the lower half of the lower mold 22. The end 12a of the skin material 12 is arranged inside the lower mold 22 so as to maintain a bent state.

As a method for holding the end 12a of the skin material 12 by bending it inward, as shown in an enlarged view in FIG.
2 side gusset part 12b to the lower die 21 with double-sided tape 25.
The wire 26 is attached to the inside of the end 12a of the skin material 12, and the end 12 of the skin material 12 is
The wire 26 is bent so that a is bent inside the lower die 22.
There is a method of locking it to the lower die 21.

Further, as shown in FIG. 5, the skin material 1 of the lower mold 22 is
A plate-shaped presser piece 2 is placed at a position where it comes into contact with the terminal 12a of 2.
8 is formed protrudingly, and this pressing piece 28 holds the skin material 1.
After the injection of the foamed synthetic resin stock solution, the end 12a of the mold 2 is exposed to foaming pressure such as foaming gas, and is exposed to the side wall 22 of the lower mold 22.
There is also a method for preventing contact with the a side. In this case, as shown in FIG. 1, a slit 13b corresponding to the shape of the presser piece 28 is formed in the foam 13.

Further, FIG. 6 shows different means for holding down the end 12a of the skin material 12, and in this embodiment, a holding member 29 for the end 12a of the skin material 12 is attached to the upper die 23.
The skin material 12 is sucked into a lower mold 22 equipped with a vacuum suction means, and the skin material 1
The end 12a of the second end 12a is arranged in a bent state inside the lower mold 22 by a pressing member 29, and the stock solution of the foamed synthetic resin is injected from the injection port 23a formed in the upper mold 23, and the foamed body 13 is molded. After, upper mold 23
By pulling upward, the end 12a of the skin material 12 is released from the presser member 29.

Further, the end 12a of the skin material 12 is held in a bent state using a pulling member made of a synthetic resin material such as a thermoplastic resin, or the end 12a of the skin material 12 is held in a bent state.
Various methods can be used, such as impregnating the material with a thermoplastic resin material and forming the material into a bent state in advance.

In this embodiment, the end of the skin material is buried in the middle position in the height direction of the foam, but it may be buried in the lower end side or the back side of the foam.

[Effect of idea]

The above is the structure of one embodiment of the skin-integrated foam according to the present invention. According to this structure, the end of the skin material is buried inside the foam at an intermediate position in the height direction of the foam. Since there is no need to separately process the end of the skin material, work efficiency can be significantly improved, and a part of the horizontal gusset part of the skin material can be omitted, reducing the amount of skin material used. It is possible to obtain a skin integral foam with excellent appearance without the risk of wrinkles or deformation occurring on the outer side of the skin.

[Brief explanation of the drawing]

Figures 1 and 2 are a perspective view and a cross-sectional view of the skin material-integrated foam according to the present invention, Figure 3 is a cross-sectional view of the skin material placed in the foam mold, and Figures 4 and 5. and FIG. 6 are cross-sectional explanatory views showing the refraction-maintained state of the end of the skin material, respectively, and FIGS. 7 and 8 are a perspective view and a sectional view of a conventional skin material integrated foam. In the figure, 11... Skin material integrated foam, 12... Skin material, 12a... Terminal, 13... Foam, 21...
...Foaming mold, 22...Lower mold, 23...Upper mold, 2
5... Double-sided tape, 26... Wire, 28... Pressing piece, 29... Pressing member.

Claims (1)

[Claims for Utility Model Registration] (1) A skin material is provided on the lower mold of a foam molding mold comprising a lower mold and an upper mold, and a stock solution of foamed synthetic resin is injected into the inside of the lower mold to produce a foam. A skin material-integrated foam body formed by foam-molding integrally with the skin material, wherein an end of the skin material is embedded inside the foam body. (2) The skin material integrated foam according to claim 1, wherein the foam is colored.