JPS61279278A - Molded sheet and its production - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] Industrial Application Field The present invention uses skins with different physical properties (color, elongation, breathability, material, etc.) for the body part of the seat skin (part names will be described later), It is used in the technical field to fix the joint, prevent movement of the joint during molding, and eliminate distortion, meandering, etc. of the joint line.

BACKGROUND OF THE INVENTION A conventional method for fixing the peeling portion of a molded seat cover is shown in FIG. 11. Prior to the explanation, the names of each part of the seat cover will be explained with reference to FIG. 12.

In FIGS. 11 and 12, 01 is the outer skin, 02 is the body part that becomes the seat surface, 03 is the gusset part that is the end side of the seat,
Reference numeral 04 indicates a joint portion joined by various construction methods, 05 indicates a bead, 06 indicates a mold, o7 indicates a clamp that holds the bead 05, and 08 indicates a cushion pad.

The method of fixing the joint part 04 of the conventional molded seat cover shown in FIGS. Bead 05 by attaching it to the lamp 07
was fixed to the mold 06, positioned, and moved on to the next process. However, when using two or more skins with different physical properties (material, color, pattern, etc.) together with the body part, the splicing part 04
There was a problem that they could not be used because their physical properties were different.

As a conventional method for molding seats, it has been known that the skin 01 is vacuum formed to match the outer shape of the seat, but after that, foaming is often done integrally with the molded skin, and usually a non-woven material such as vinyl leather is used. It used a single layer of breathable skin.

A so-called integrally molded sheet has been developed in which a cushion material 08 having a seat shape is bonded to a molded seat skin OX. 04,
Utilizes the non-molding mold surface.

I thought of a way to fix it. However, on the molding surface, it was difficult to set, for example, clamps to securely fix the skin 01 to the mold surface during molding, so there was a lot of variation, and the shape of the joint part was different. It was difficult to produce something that was beautiful and free from distortion. Note that distortion during molding is particularly large when joining skins with different physical properties.

Problems to be Solved by the Invention The object of the present invention is to prevent the movement of the seam part during skin molding using a mold, and to obtain a beautiful seam part without distortion.

Means for Solving the Problems In order to solve the above-mentioned problems, the present invention takes the following measures. That is, a) sheet-like skins with different physical properties are joined together to form a body part, and the skin is shaped to match the shape of the body part of a completed seat having a packet part, etc., to form the outer shape of the complete seat. A cushion pad that matches the above and the above skin are adhered to form a molded sheet.

b) A mold having a mold surface that matches the shape of the body part of the seat, a protrusion for fixing the skin torn off part provided at an appropriate position on the surface of the mold, and the above-mentioned joint part is locked to the fixing protrusion. , a manufacturing method in which a skin pressed against a mold surface and a cushion material forming a seat shape are joined.

Effect: According to the above-described means, the seat skin is securely fixed, so that a beautiful product can be obtained without loosening or meandering of the seamed parts.

Embodiment Next, an embodiment of the present invention will be described in detail with reference to FIGS. 1 to 10.

In FIGS. 1 to 10, part numbers 1 are the skin, 2 is the body part 3, the gusset part, 4 is the splicing part, 6 is the mold, 8 is the cushion pad, 10 is the fixing projection on the mold surface, and 11 is the joint part. Needle which is part of the protrusion, 12 is a plate, 13 is a spring, 1
4 is a suction tube, 15 is a vinyl chloride film, etc., 17 is a Perchrome, 18 is a hook, and 20 is a slit provided with a protrusion of 10 VC.

In FIG. 1, a projection 10 is provided at a desired position of the mold 6 to securely fix the seam 4 of the body part 2 and the gusset 3, and the skin can be molded without any displacement of the seam. . For example, the protrusion 10 is shown in FIGS. 4a and 4b.
As shown in the figure, a needle 11 is provided at the tip as part of the protrusion 10 to make the fixation more secure. FIG. 4b shows an example in which the protrusion 10 is made thin in case the joint 4 is tight, and a needle 11 is provided at the upper part. In this case, the tip of the needle should be slightly rounded. In FIG. 4C, the protrusion 10 is not provided, and the needle 1 is simply
This is an example in which there is only one protrusion.

FIG. 5 shows an example in which the skin 1 is made of a woven fabric, and since it is breathable, a vinyl chloride film 15 is attached to the back side of the spliced portion 4 and fixed by vacuuming with a suction tube 13 at a temperature. Depending on the degree of breathability or suction, it may not be necessary to add PVC film, etc.

Fig. 6a shows a slit 20 provided in the protrusion 10 of the mold 6, and a plate made of resin, cardboard, etc. that can be held at the joint 4 of the body part 2 and the gusset part 3 (enlarged in Fig. 4b). ) is inserted, temporarily sewn in with a sewing machine, inserted into the slit of the mold 6, and after being molded and finished by the mold 6, the plate 12 is removed by hand. FIG. 6b shows the seams of the plate 12.

Fig. 7 shows an example in which a slit 20 is provided at the tip of the protrusion 1o of the mold 6, and the part 4 to be fitted is inserted and fixed. This is an example in which a fixing slit 2o is used, and FIG. The figure shows an example in which a Velcro 17 is attached to the protrusion 10, although there are restrictions depending on the material of the skin 1.

Effects of the Invention According to the manufacturing method of the present invention, the skin is securely fixed to the mold, making it possible to use skin materials with different physical properties in combination, and producing beautiful molded sheets without twisting at the joints. It becomes possible to do so.

[Brief explanation of the drawing]

Fig. 1 is a sectional view showing skin fixation by the manufacturing method of the present invention, Fig. 2 is a sectional view of the seat body according to the invention, Fig. 3 is an enlarged sectional view of section A in Fig. 1, and Fig. 4a is a fixing method. One example is a perspective view of the protrusion, Figures 4b and 4c are cross-sectional views showing each side of the protrusion, Figure 5 is a cross-sectional view of an example of the fixing method, and Figure 6a is an example of a groove provided in the protrusion. A sectional view, FIG. 6b is a perspective view of the plate,
FIG. 7 is a sectional view of an example in which a groove is provided in the protrusion 10 and a torn part is inserted, and FIG. 8 is a sectional view of the other side of the slit provided in the protrusion.
9 and 10 are cross-sectional views of an example in which the holding force of the projections is increased, FIG. 11 is a cross-sectional view showing a conventional skin fixing method, and FIG. 12 is a cross-sectional view showing the names of various parts of the seat. 1. Outer skin, 2. Body part, 3. Gusset part, 4. Joining part, 6. Molding die, 8. Cushion pad, 1
0--Protrusion, 11--Needle, 12--Plate, 13--
Spring, 14... Suction tube, 15... PVC film e, 17
...Velcro, 18..The hook is a claw, 20..the slit. Sub-agent Masami Kimura (and 1 other person) Figure 1 Figure 2 Diagram r:/3 Link to Figure 13 4L 41st cause Figure 4b Figure 5 Figure 6a

Claims (1)

[Scope of Claims] 1. A body part is formed by joining together sheet-like skins with different physical properties, and the skin is shaped to match the shape of the body part of a completed seat having a packet part, etc., thereby forming an outer shape of the completed seat. A molded sheet made by bonding a cushion that matches the shape and the above skin. 2. A mold having a mold surface that matches the shape of the body of the seat, a protrusion for fixing the seam of the skin provided at an appropriate position on the surface of the mold, and locking the joint to the fixing protrusion; A method for manufacturing a molded seat in which a skin pressed against the surface of a mold and a cushion material forming a seat shape are joined.