JPS58118718A - Formation of decorative wrinkle to seat surface - 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 The present invention relates to a method for forming decorative wrinkles on the surface of the seat cushion or seat bank of various types of seats. A wrinkle forming method that can form decorative wrinkles in any desired area without any restrictions, and that can maintain wrinkles in a stable shape for a long period of time without affecting the moldability of the lining material or cushioning material. is intended to provide.

As shown in FIG. 1, a conventional method for forming decorative wrinkles 4 on the surface of the seat cushion 2 or seat pack 3 of the seat 1 to give a luxurious look is shown in FIG. As shown in FIG.
There is also a method of forming the desired wrinkled shape by heating and pressing, but this method has the disadvantage that only heat-resistant materials can be used as the skin material 5, and also has the disadvantage that the wrinkled shape collapses with long-term use. be.

As another method, as shown in FIG. 7, a recess 8 that matches the wrinkle shape is formed in advance in the cushion material 7, and the skin material is drawn into the back side of the cushion material 7 through the recess 8 to eliminate the wrinkles. Although there is a method for forming the cushion material, it has the disadvantage that the moldability of the cushion material 7 is significantly deteriorated.

The present invention provides a decorative wrinkle forming method that does not have any of the above-mentioned drawbacks by having the structure described in the claims.

The configuration of the illustrated example will be described below.

FIG. 2 shows an example of a button 901 used in carrying out the present invention, and FIG.
．． 11 is a partial cross-sectional view of the seat cushion 10 formed with the seat cushion 11.

The button 9 has a plurality of protrusions 13 formed at intervals in the circumferential direction of the back surface 12. The protrusion 13 has a triangular cross section and is highest on the peripheral surface 14 side of the button 9 and gradually becomes lower toward the center, but is not limited to this shape. Further, a connecting strip 15 is fixed to the center position of the back surface of the button 9.

In the present invention, the button 9 having the above structure has a skin portion consisting of a skin material 16, its lining material 17, and a cushion material 18.
The connecting strip 1 is placed on the decorative wrinkle formation site of Table 1r11 of Table 16 on the epidermis, and is passed through the through hole 19 drilled in the epidermis.
5 is pulled out to the back side of the cushion material 18 and fixed to a cushion material support 20 such as a seat spring with a hob ring 21 or the like.

At this time, the length of the connecting strip 15 is made shorter than the total length of the respective thicknesses of the skin material 16, its backing material 17, and cushion material 18.

As described above, by connecting the connecting strip 15 to the cushion material support body 20, the skin portion of the button 9 mounting portion is recessed, and in particular, the protrusion 130 portion on the back surface 12 of the button 9 is recessed.
Deeper than the back surface 12, the skin material 16 and the lining material 17
, compresses and bites into the cushion material 18, so that the protrusion 1
Decorative wrinkles io and i1 are formed in the outer circumferential direction starting from the bite portion 3. As shown in FIG. 2, when two protrusions 13 are provided at equal intervals in the circumferential direction, four radial wrinkles are formed.

1-1. The figures show another example of a button used in the practice of the invention, with FIG. 5 showing a partial cross-section of the button shown at 1l-ffl.

This button 22 has wrinkles 23, 24, .
It is formed by substantially star-shaped protruding pieces 26 to 30 that match the numbers 25, . Projection 31.3
2... is the highest on the outer end side of the protruding pieces 26 to 30, and is formed so as to gradually become lower toward the center, as in the case shown in FIG.

A connecting strip 33 is fixed to the center of the back surface of the button 22. The length of this connecting strip 33 is also shorter than the total length of the respective thicknesses of the skin material 34, lining material 35, and cushioning material 36 of the seat cushion, as shown in FIG.

This button 22 is also placed on the decorative wrinkle forming area on the surface of the skin material 340 of the skin part made of the tension material 36 explained with reference to FIG. is pulled out to the back side of the cushion material 36, and the cushion material holder support 3 for the seat spring etc.
8 with a hob ring 39 or the like.

By doing this, the protrusions 31, 32... are located outward from the bases 40-44 of the protrusions 26-300, and the portion of the skin portion pressed by the protrusions 31, 32... is located at the base 40. Because the depression is deeper than the part pressed at ~44,
Wrinkles 23°, 24, 25, . . . are formed around the button 22 in the direction of the protruding pieces 26 to 30.

The method for forming decorative wrinkles according to the present invention has the configuration described above, and since wrinkles are generated by pressing the outer skin part with the projections on the back of the button, the materials used for the outer skin side, lining material, and cushioning material are There are no restrictions on the molding shape, and the effect is that decorative wrinkles can be easily formed at any desired location.

Furthermore, since there is no need to provide the cushioning material with a shape for forming wrinkles, there is also an effect that the moldability of the cushioning material is not adversely affected.

Furthermore, since the decorative wrinkles are formed by the pressure of the protrusion on the back of the button, the wrinkles are maintained until the pressure is released, so that the wrinkles can maintain a stable shape for a long period of time. There is also.

[Brief explanation of drawings]

Fig. 1 is a perspective view of a sheet with decorative wrinkles formed thereon, Fig. 2 is an inverted perspective view of an example of a button used in carrying out the present invention, and Fig. 3 is a perspective view of the button shown in Fig. 2. FIG. 4 is an inverted perspective view of another example of a button used in carrying out the present invention, and FIG. 5 is a button shown in FIG. 1+. FIG. 6 is a cross-sectional view of an example of a seat skin material with conventional decorative wrinkles, and FIG. FIG. 3 is a perspective view of an example of a cushioning material to be formed. 1: Sheet, 9: Button, io, il: Decorative wrinkle, 12
: back surface, 13: protrusion, 15: connecting strip, 16 two skin materials,
17: Lining material, 18: Cushion material, 20: Cushion material support. Patent applicant Toyota Motor Corporation Agent City
Rikichi Kawa, Tatsu Maendo Kumibushi 1 Figure 3 Figure 4 Figure 5 ＼ (4 Figure 6 Figure 7

Claims (1)

[Claims] A button with a protrusion formed on the back side is placed on the decorative wrinkle forming area on the surface of the skin material, and the button is connected to the seat by a connecting strip shorter than the total thickness of the skin material, its lining material, and the cushioning material. A method for forming decorative wrinkles on a seat surface, characterized in that the button is connected to a support body of a cushion material such as a sprink, and the projection on the back surface of the button presses the skin material to form wrinkles.