JPH03121090A - Manufacture of integrally shaped seat with surface skin - Google Patents

Abstract

PURPOSE:To correctly position a surface skin and a seat pad member and press-attach the both by projecting the pattern diagram of a recessed stripe on the surface of a surface skin, temporarily fitting the seamed part of the surface skin so as to coincide with the pattern diagram and heating-press-attaching the surface skin and the seat pad member. CONSTITUTION:A surface skin 1 has a bag shape which is formed by seaming the cut pieces which are cut in three dimensional form, and has a complicatedly curved seamed line 3, and a seamed foot 4 is formed on the reverse surface side, and a deep groove-shaped recessed stripe 8 into which the seamed foot 4 of the surface skin 1 can be put is formed on the surface of a seat pad member 2. In the covering working, the surface skin 1 covers the sat pad member 2, fixed on a fixing jig 7, and when light is projected towards the surface of the surface skin 1 from a projector 9, the pattern diagram of the recessed stripe 8 is clearly projected to the surface, and the seamed line 3 is positioned so as to coincide with the pattern diagram, and temporarily fitted by a pin member 10. The surface skin 1 is demounted from the fixing jig 7, and heating pressing is performed in a mold, and the perfectly integral formation is carried out. Accordingly, even in case of the complicatedly curved seamed line, the surface skin and the seat pad member can be surely positioned free from the position deflection, and can be press-attached.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a method of manufacturing a sheet with an integrally molded skin, which allows easy and accurate positioning of the seat pad material and the skin.

(Conventional technology) The integrally molded skin sheet used for automobile seats, etc.
In recent years, due to the trend toward higher-class seating, seats have become increasingly complex in shape, such as curved suture lines, but the manufacturing method is to open the back by cutting out the back of the seat or sewing a slide fastener. A common method is to use such a skin and adhesively mold it onto a seat pad material. However, when using this method, members such as backboards and slide fasteners are required to cover the notch, and there are also problems such as the inversion of the skin being unavoidable during the manufacturing process, which complicates the molding process. Ta. Therefore, a method has been proposed in which a bag-shaped skin is placed on the seat pad material and then heat-pressed in a mold to solve the above problem (for example,
1-131785, JP-A-61-273933). However, these methods have a problem in that it is difficult to accurately position and press the curved suture line formed on the skin at a predetermined position on the seat pad material.

(Issue Ia to be Solved by the Invention) The present invention solves the above-mentioned conventional problems and enables accurate positioning of a seam pad member at a predetermined position even if the suture line is a complicated curve. This method was completed with the aim of producing a sheet with an integrally molded skin that can be press-bonded.

(Means for Solving the Problems) The present invention integrates a bag-shaped skin made by sewing cut pieces together and a seat pad material having grooves corresponding to the seamed parts by heat-pressing them in a pair of molds. In the method for manufacturing a skin-integrated sheet, the pattern diagram of the concave stripes is projected onto the surface of the epidermis before the heat-compression bonding, and the pattern diagram is temporarily fixed so that the pattern diagram matches the sutured part of the epidermis. The feature is that the upper skin and the seat pad material are bonded under heat and pressure.

(Example) Hereinafter, the configuration of the present invention will be described in detail based on an example shown in the drawings.

( ]) is the skin, and (2) is the seat pad material. Epidermis (
1) is made by cutting fabric, synthetic leather, etc. three-dimensionally to correspond to the external shape of the seat pad material (2), and then sewing the cut pieces together to form a bag shape, with complicated curved suture lines on the surface. (3), and a stitch foot (4) corresponding to the stitch line (3) is formed on the back side. On the other hand, the seat pad material (2) is foam-molded with polyurethane foam or the like together with a frame (6) with an adjuster (5), and the surface that will be the adhesive surface of the seat pad material (2) is covered with the skin (1). A deep groove-like concave strip (
8) is formed. Then, during the covering work, the skin (1) is fixed to the fixing jig (7) using the adjuster (5), and the skin (1) is placed over the seat pad material (2). When projecting light onto the surface, the projector (9) is pre-filled with sheet metal (2).
Since it is set to project the pattern diagram of the deep groove-like grooves (8) formed on the surface of the epidermis (1), the pattern diagram of the grooves (8) is clearly projected onto the surface of the epidermis (1). That will happen. Then, in this state, the suture line (3), which is the sutured part of the epidermis (1), is positioned so as to match the pattern diagram and temporarily fixed with a pin member 00). In this case, the position of the groove (8) cannot normally be seen from outside the epidermis (1), but the projector (9) shows the pattern line of the groove-like groove (8) on the epidermis (+1). is projected, the suture line (3) of the epidermis (1) can be accurately positioned, and the suture leg (4) can be temporarily secured with it reliably immersed in the deep groove-like groove (8). After that, it is removed from the fixing jig (7), and as shown in Fig. 3, the upper mold (11) and the lower mold θ are heated and pressed together in the mold, and the skin (1) and Completely integrate the seat pad material (2).

In addition, the adhesion between the skin (1) and the seat pad material (2) is as follows:
This can be reliably achieved by a well-known method such as pasting a heat-sensitive film on one of the adhesive surfaces or applying a spray adhesive. When the heat and pressure bonding process is completed in this way, the upper mold (IQ and lower mold surfaces are opened and the sheet is taken out, and the pin member 00 used in the previous process) is removed and the skin integrally molded sheet is formed. Complete. Note that this removal of the pin member Ql is extremely easy to remove because even if adhesive is present between the skin (1) and the seat pad material (2), the adhesive on the pin member θ is weak at points. It can be removed.

(Effects of the Invention) As is clear from the above description, in the present invention, a pattern diagram of the concave stripes of the seat pad material is projected onto the epidermis, and the pattern diagram and the sutured portion of the epidermis are connected. Since the materials are temporarily fixed to match and then heated and crimped in this state, the skin and seat pad material can be reliably aligned and crimped without misalignment, even with complicated curved suture lines. Moreover, it does not require special members such as a back board for crimping, and furthermore, the molding process is small (it is simple and can be molded very efficiently).

Therefore, the present invention greatly contributes to the development of industry as a method for producing an integrally molded skin sheet that eliminates the conventional problems.

[Brief explanation of drawings]

Fig. 1 is a perspective view showing the manufacturing process of an embodiment of the present invention;
The figure is an enlarged sectional view of the main part in FIG. 1, and FIG. 3 is a side view showing the crimping process. (1) Two epidermis, (2): seat pad material, (3): suture line, (4): suture foot, (8): deep groove-like concave stripe, (9) two projectors, 0ω: pin member.

Claims (1)

[Claims] In a method for manufacturing a skin-integrated sheet, in which a bag-shaped skin made of sewn cut pieces and a seat pad material having grooves corresponding to the sewn parts are heat-pressed and integrated in a pair of molds, the heating Before crimping, project the pattern line of the grooves onto the surface of the skin, temporarily fix the pattern line so that it matches the sutured part of the skin, and then heat and press the skin and the seat pad material. A manufacturing method for a sheet with an integrally molded skin.