JPS5859041A - Manufacture of skin for sheet - Google Patents

Abstract

PURPOSE:To improve cushion properties without the use of an adhesive agent and to simplify a process to perform a monolithical uniting, by a method wherein a plural number of sheet materials is laminated, and they are welded together in a dot manner along the side edge part to unite then monolithically. CONSTITUTION:In case, for example, a sheet material 6 consisting of leather, a sheet material 7, such as slab urethane, having cushion properties, and a sheet 8 consisting of a fabtic backing are laminated and united into a monolithical unity to form a skin material 2, a rodform output member 20, of which an ultrasonic welder consists, makes contact with a part positioned inward by DELTAl from a longitudinal side edge part m of a laminate 14 consisting of the sheets 6-8 to form welded parts 21 in a dot manner to unite them monolithically. A stock S, having the part 21 welded in a dot manner, is cut at parts (a) to form a stock So, and the stock So is cut to a given length to form a skin material 2. The side edge part m of the skin material 2 is folded inward, and the said part and the outer skin materials 3, 3 are sewed together through the medium of beadings 22 to form a bagform skin material for seat.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method of manufacturing a skin for a sheet, and particularly to a skin formed by sewing together the ends of a plurality of skin materials and forming a bag shape. The present invention relates to a method of forming the sheet material from the sheet material and integrating the sheet material.

Conventionally, as shown in FIG. 1, a seat skin has a skin material 2 located at the center of a seat 1 and having a long side shape extending in the front-rear force direction or the vertical direction, and a skin material 2 as a flange 717 part, and the skin material 2. [Both sides of material 2] 11[] Table 1k 4g' 3 as a sleeve part that covers both sides of sheet 1, skin 4A4 that covers both side walls of sheet 1, and f1 on the front and back of sheet 10
11 The outer skin covering the wall (4A, 5 and 5) was sewn together to form a bag shape, and it was created in Jl. (Cover the entire loose material A made of urethane, etc.).

The epidermis 4 near I2 as part 717 is the part that most touches the buttocks, thighs, or back of the body, and is located on the surface side as shown in Figure 2 for the purpose of holding the body softly. A sheet material 6 made of leather or animal skin, a sheet material 7 made of slab urethane, etc., and having cushioning properties, and a sheet H8 made of, for example, cloth H, placed on the back side, are laminated to form a shape IJyζJz. These sheet materials 6 and 7
．． 8 are sent out from No. 10-rolls 9 and 10.11, respectively, and then pressed and laminated by rollers 12 and 13, and adhered to each other. 'I/ra J
l,ru1, In this case, in the process before being fed to the roller 12.13, the /-1 material 70 is subjected to engraving on both sides; f
The roll 15, and therefore the material 6, 7.8, will be held together by this adhesive, and then rolled onto the roll 14. As shown in Fig. 5, a flat material S is sent out in the direction of force by hand, and this material S is cut from portions a and a to form a material So by steps 1 to 1, which are aligned with the width l of the skin material 2. By cutting this material SO in a predetermined manner, a skin material 2 is formed, and this skin material H2 is sewn to form other skin materials +
I am trying to integrate it with J'3 and 4.5.

However, according to such a method of manufacturing a sheet skin, since the sheet material 6°7.8 constituting the skin opening 2 is integrated using adhesive paulownia, the working environment is poor, and [7.
In addition, since the glue and the adhesive require time to dry, the number of man-hours increases and mass production cannot be achieved, and the adhesive is interposed between the notebook material 7 and the sheets Ht6 and 8. Therefore, the cushioning properties of the skin material 2 itself deteriorate.

The object of the present invention is to eliminate the above-mentioned drawbacks by welding the 7-piece materials constituting the skin material into one piece along the longitudinal edges thereof, and to eliminate the above-mentioned drawbacks. /Tl
This will be explained in detail.

Figures 6 and 7 show an embodiment of the method for manufacturing a sheet skin according to the present invention. Thing ti: 1Il-t'
＞SiJ appetizers are used.

Book a clearly P ite kl, rI-, le 9, 10,
11 J-, delivery η, sheet 44' 6, 7
.
Long side ☆: The rod-shaped output part 20 that constitutes the ultrasonic wave / f ¥ mounting bamboo along the inside of the M part n1 by Jl height is 11
t,, this Jl, 1. forming dot-like welded parts 21;
This welded shoulder part 21 unites the sheets 14'6 and 7.8 together 11'' (2).Next, weld the dotted welded parts 21 together 4A' S 4・Part 'l)' +1 to lino Cut and form 4J'Soe, this)A4AS1)4'JX
Then cut the skin 4A2 into a shape IA, ]7,
This epidermis (A11 on the 1000th side of A2 as shown in Figure 7)
One part Ill is folded inward, and this folded part and other skin materials 3, 3 are sewn, for example, with the bead 22 interposed in Y1 to form a bag-like shape of 13M. This) 1. melted by
'-7 section 21 integrates the sheets 6, 7.
A bag-shaped sheet skin comprising the skin material 2 consisting of A 8 and the skin +A 3 , 4 and 5 can be obtained.

Similarly, in the present invention, the dotted welded portion 21 side may be folded inward and this portion may be sewn to the end side of the other skin material 3.3.

According to the strength described above, since no adhesive is required to integrate the sheet materials 6, 7.8, a favorable working environment can be achieved, and furthermore, no adhesive application and drying process is required. Since this process does not require any additional work, the number of man-hours required can be reduced and mass production can be achieved.

In addition, the sheet materials 6, 7.8 &; It has rich cushioning properties without sacrificing the soft feel. Further, by performing welding using an ultrasonic welding device as in this embodiment, the connection strength IW on the welded portion 21 side of each notebook material 6, 7.8 can be increased.

Similarly, in the present invention, a wide phase S is cut out from a portion a, and a phase 4'A whose width matches the width l of the skin material 2 is used.
Although the description has been made assuming that the sheets R6, 7 and 8 are wound on the rolls 9 and 10. By pre-determining the distance, step 2 of cutting the composite phase S from part a can be omitted.

As explained above, the present invention provides a method for manufacturing a skin for skin, including: it, ridge, lamination σ)1. A laminated skin 4'' consisting of several 1M sheets and another skin 4'' are sewn together and formed into a bag shape. In the method for manufacturing the surface skin for the notebook layer (A), a dot-like welded portion is provided by cutting the !a part of the notebook layer skin (A), and each notebook material is integrated with each other through this welded portion. 1: Because of sea urchin/ξ, there is no need to apply adhesive over the entire surface of the sheet material, which simplifies the manufacturing process and makes the working environment more pleasant.

[Brief explanation of the drawing]

Figure 1 is an example 1 of the method for making the skin of Sea 1-1'Il1.
Old perspective map showing Figure 2, Figure 3 1jJi Figure 4 is f
FIG. 7-1 is a cross-sectional view and a side view showing an example of a method for making a skin for 7-1. The plan view and FIGS. 5 to 7 are a plan view, a front view, and a cross-sectional view showing one embodiment of the method for making a Shinai skin for sheets according to the present invention. 5... Epidermis example, 6, 7.8
...sheet material, 9,10,11.14...roll,
12.13...Roller, 20...Output member, 21...
...Dot-like welded parts, 22...bead edges. To patent application Ikeme] Bussan Co., Ltd. Nichiei Kogyo Co., Ltd. agent Patent attorney Jun Miyazono - 7-

Claims (1)

[Claims] In an fM force building method for a seat skin made by laminating a plurality of sheet materials and another skin material sewn together and formed into a bag shape, each layer is 1. A method for producing a sheet skin, comprising: laminating sheet materials, and then providing dotted welded portions along the edges of the sheet materials, and integrating the sheet materials with each other through the welded portions.