JPH0554799B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a method of forming an automobile seat.
More specifically, the present invention relates to a molding method for forming deep grooves in the side surface of an integrally molded sheet in which a skin is directly bonded to a sheet pad material such as foamed urethane foam.

(Prior Art) As is well known, as shown in FIG. 6, an integrally molded automobile seat is made by directly adhering a skin 102 to a seat pad material (molded urethane foam) 101 such as urethane foam foam. It is generally made of a skin 102 made of a single piece of fabric and a sheet pad material 10.
1 and 2 are pressure-molded and bonded from above and below using a mold.

(Problem to be solved by the invention) However, the side portion 103 of the automobile seat
is inclined inward toward the bottom, and in the conventional molding method in which the seat pad material 101 and the skin 102 are pressure-molded using an adhesive mold that applies pressure in the vertical direction, the gussets 102b of the skin 102 are formed on the seat pad material 101. It cannot be adhered to the side surface portion 103 of. Further, it is not preferable to completely adhere the side surface portion 104 of the sheet pad material 101 and the gusset 102b of the outer skin 102 because it reduces the elasticity of the sheet.

In addition, in this conventional forming method, a portion corresponding to the upper surface of the sheet pad material 101, that is, a central portion 102a
Since it is only bonded to the sheet pad material 101,
The gusset 102b of the skin 102 is the seat pad material 10
1 is placed in a non-contact state as shown by the imaginary line.

In other words, the gusset 102b of the skin 102 is folded under the seat pad material 101, so when the occupant is seated, the gusset 102b of the skin 102 sag independently apart from the seat pad material 101, which improves the appearance in use. do not have. In addition, in this structure, as can be understood from FIG.
2 is positioned on the seat cushion frame 104, making it impossible to obtain a seat with a high-class feel.

The purpose of the present invention is to take into consideration the problems of conventional integrally molded automobile seats as described above, and to obtain a molding method for obtaining a cushion-type integrally molded seat that has a luxurious appearance and does not feel strange when in use. It is provided by.

(Means for Solving the Problems) In order to achieve the above object, the present invention provides a pressure bonding mold having ridges protruding laterally in the gusset portion when pressure bonding the seat pad material and the skin. is press-fitted into the seat pad material from the side, a groove is pressure-formed in the gusset part and it is bonded, and the body part and the gusset part of the seat are simultaneously molded and bonded to obtain a cushion-type integrally molded seat.

(Example) The structure of the present invention will be described in detail below based on an example shown in the drawings.

As shown in FIGS. 4 and 5, a cushion-type integrally molded sheet to be molded by the method of the present invention has a V-shaped groove 3 formed in a side surface 2 of a seat pad material 1. Along the epidermis 4 town 4A
is folded in, giving the appearance of a cushion-like pad 5 placed on the top of the cushion, creating a luxurious seat structure. In this seat, even if the seat pad material 1 is compressed when the occupant is seated, the gusset of the skin 4 that is not bonded to the side surface portion 2 of the seat pad material 1 is relatively short, so that there is little sagging around the seat pad material 1.

As shown in FIG. 1, the molding method for the integrally molded seat of the present invention is such that a lower die 7 for pressure bonding is attached to the surface of the seat pad material 1 which has been molded to the outer shape of the seat, and a skin 4 is adhered to the seat surface portion 6. After applying adhesive to the periphery of the skin 4, the gussets 4A of the skin 4 are attached to the sheet pad material 1 using a side pressure bonding mold 9.
The outer skin 4 is adhered to the groove portion 3 and the side surface portion 2 of the seat pad material 1 (FIG. 1b). At this time, the side pressure adhesion mold 9 for pushing the gusset 4A of the skin 4 into the groove 3 previously formed in the side surface portion 2 of the seat pad material 1 is inserted into the shoulder portion 11 that presses the gusset portion 2 of the seat pad material 1 and into the groove 3. It has a protrusion 10 that is press-fitted. Further, it is optional to use a sheet pad material 1 that has been previously formed into a predetermined shape using another mold and is also provided with grooves 3. Normally, the entire body is made of molded urethane foam, but in order to improve the comfort of the seat by making the upper and lower parts of the seat padding material 1 have different elasticity, a molded cushion material 12 is used. Urethane slab cushion material 13
They may be stacked to form one sheet pad material 1 (Fig. 1a). At this time, the groove 3 in the side surface portion 2 of the seat pad material 1 is formed in the slab cushion material 1.
3 and the mold cushion material 12 by making the boundary portion slightly thinner. Furthermore, code 1
6 is an adhesive.

In addition, as shown in FIG.
It is also possible to press the periphery of the seat pad material 1 with the press plate 14 when press-fitting the seat pad material 1 into the seat pad material 1, thereby improving the adhesion between the skin 4 and the seat pad material 1 within the groove portion 3. The sheet pad material 1 and the skin 4 on the upper periphery of the groove 3 are simultaneously pressed on three sides by the holding plate 14, the ridges 10 of the lateral pressure adhesion mold 9, and the shoulder 11, and are pressure-molded and bonded without any gaps.

Furthermore, as shown in FIG. 3, the grooves 3 are formed at the same time as the skin 4 is bonded without forming the grooves 3 in the seat pad material 1 in advance, and the skin 4 is formed in the grooves 3.
It is also possible to push the In this case, first, the skin 4 is set on the lower mold 7, and the end of the skin 4 is fixed to the lateral pressure bonding mold 9 with a clamp 15.
In this state, the upper die 8 is lowered to form the skin 4,
Thereafter, an adhesive is applied to the sheet pad material 1, and the sheet pad material 1 is bonded under pressure in the lower mold 7 using the upper mold 8. In the middle of this pressure bonding stroke, the upper die 8 is stopped and the side pressure bonding die 9 is press-fitted into the side surface portion 2 of the sheet pad material 1, forming the groove 3 and forming the skin 4 in the groove 3.
are glued together and the sheet is integrally formed.

(Effects) As is clear from the above explanation, the integrally molded sheet structure method of the present invention is applied to a pressure bonding mold having a protrusion that protrudes laterally in the gusset portion when pressure bonding the seat pad material and the skin. is press-fitted into the seat pad material from the side, grooves are pressure-molded on the side surfaces, and the skin is glued.The top and side parts of the seat can be molded and glued at the same time to create a cushion-type integrally formed seat. Can be molded.

[Brief explanation of the drawing]

FIG. 1 is a work explanatory view showing an example of the method of the present invention, in which a shows the gusset before pressure bonding and b shows after pressure bonding.
FIG. 2 is a work explanatory diagram showing another example, and FIG. 3 is a work explanatory diagram showing still another example, in which a shows the gusset before pressure bonding and b shows after pressure bonding. Figure 4 is a cross-sectional view showing an example of a cushion-type integrally molded sheet;
FIG. 6 is a perspective view of a sheet formed according to the present invention, and FIG. 6 is a cross-sectional view showing a sheet structure formed by a conventional method of forming an integrally formed sheet. In the figure, 1... Seat pad material, 2... Gusset part, 3... Groove, 4... Outer skin, 6... Body part, 7,
8... Pressure adhesion mold, 9... Lateral pressure adhesion mold,
10... Indicates each ridge.

Claims (1)

[Scope of Claims] 1. A sheet pad material is placed in a pressure bonding mold, a skin is adhered to the surface of the sheet pad material, and a lateral pressure bonding mold having a convex strip that is discharged from the side is inserted into the sheet pad material from the side. A method for forming an integrally molded sheet for automobiles, which comprises press-fitting the sheet, pressure-forming a groove on the side surface portion, and adhering the sheet. 2. An integral piece for an automobile according to claim 1, wherein the seat pad material is formed by stacking a slab cushion material and a mold cushion material, and forming grooves in advance at the boundary portions of the side surfaces thereof. How to form a molded sheet. 3. The method of forming an integrally molded automobile seat according to claim 1, wherein the seat pad material has grooves formed in advance on its side surfaces. 4. Molding of an integrally molded automobile seat according to any one of claims 1 to 3, characterized in that the periphery of the seat pad material is pressed during press-fitting into the seat pad material of the side pressure bonding mold. Method. 5 Press-fitting the side surface of the sheet pad material using the lateral pressure bonding mold is done by forming the skin into a mold shape using the pressure bonding mold, and then placing the mold cushion material on top of it and bonding it by pressure. The automobile integral body according to claim 1, characterized in that a side pressure bonding mold is press-fitted from the side to form a groove in the side surface portion of the seat pad material, and at the same time, the skin is bonded to the seat pad material. How to form a molded sheet.