JPS58163312A - Bead flange of vehicle seat - 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 string-like bead used for sewing seams of a skin member in a railway vehicle seat.

The bead (4) shown in No. 1111 is a conventional product, and this conventional product (4) has an onion (&) inserted and a bead cover (b).
) was sewn into a bag shape (kenshin stitch). Therefore, since this conventional method involves sewing work, the workability is very poor and it is not suitable for customers.In addition, if the onion (&) is not over a certain thickness, the onion product will be damaged when sewing. It was difficult to sew at a given position because it did not act as a guide.

Therefore, it is an object of the present invention to solve the problems of conventional products.

The gist of the present invention, which achieves the above objectives, is to melt the seam allowances of the two sheets with high circumference! This relates to a welt edge made by gluing I etc. to form a single seam allowance.

Embodiments of the present invention will be described below based on the drawings.

Figures 2 and 1 show how the bead (b) is used according to the present invention, and the skin member 0) in the figure is bent (al).
, Kakubuchi (phantom), and gusset (a-ri) are sewn with the welt (~) seam allowance interposed between the seam allowances.

In addition, Kagami (at) and Kakubuchi (a3) shown in the figure are the laminate of the champion of the skin (to), foam wadding (0 car, wadding cover), and the gusset (a2) is formed of a single skin. has been done.

The mark ■e → in Figure 4) shows the first example of the present invention product (A1), and (1) in the figure shows the string-like onion with a nylon surface (Figure 4 B).
)), (2) is a band-shaped beaded cover, and the kneaded cover (2) has an onion enveloping @(
2a), and seam allowances (2b) (2
b) is extended and made of nine cloth or synthetic resin film, and in the case where the adhesive is bonded by fusing using high frequency waves 111111140 as in the embodiment, a member having fusing properties (for example, nylon fabric) is used. The above onion (1) is covered with a bead cover (2) (Fig. 4 (b)), and a bead cover (2)
), overlap both seam allowances (zbX!b), and
2b) When (zb) is fused using a thermal wave (Fig. 4 (c))
, a seam allowance (2) is formed in which both seam allowances (2bX2b) are combined into one piece (see Fig. 4)).

Figure 5 H) ←) (C) shows the L second example product (Ax), in which a leg piece I having a thin wall and flexibility (to the extent that it can be processed) is integrated into an onion (1). (Fig. 5 0))
Attach the seam allowance (zbXz) of the welt cover (2) to this leg piece Ql.
b) is fused by high frequency wJ- (#I5 (c))
The seam allowance (2) is formed (see Fig. 5). Therefore, the seam allowance of this welt (A2) does not bend as in conventional products, so that the workability of sewing can be further improved and a high quality welt can be provided.

Fig. 6 0) (b) f→) is a bead (A) with a bead cover (2) integrally attached (fused) to an onion (1) and a leg piece (2).
3) The molding method is shown below. That is, the leg pieces (B) and (B) are integrally molded on the onion (1), and the leg piece O4 (6) is opened and covered with the bead cover (2) upwards (see Fig. 6). (a)), using a high-frequency melting II machine ()-, fuse the entire surface of the bead cover (2) to the top surface of the onion (1) and leg piece (b) (see Figure 1).Next, both leg pieces 01 When the legs of (2) are closed and overlapped to form both leg pieces (101) into one piece using high frequency (Fig. 6 (c)), the entire surface of the bead cover (2) is fused to the onion (1) and the large bead ( A3) is molded (see Figure 6)).The large bead (Aa)Fi is formed in this way and its bead cover (2) is formed.
9. The onion (1) and the like are integrally formed so that wrinkles do not occur. Also, unlike conventional products, the bead edge cover does not stretch and wrinkle due to long-term use and the aesthetic appearance is not impaired.

Figure 7 (()
A4) is shown in the figure.
If it is a flat plate-like soft synthetic resin leg forming part formed with twice the width of the leg Ql, and onion forming parts (1 m
) (1 m) is integrally molded (Fig. 7 (a)), and the molded material block consisting of the leg forming part (Ua) and the onion forming part (ua) (1 m) is wrapped between the bead cover materials. (Figure 7←))
, the bead cover material <i) is fused together with high frequency on both the upper and lower sides of the leg piece formation Sαla) (Fig. 87). After that,
When the center of one direction is cut (as shown in Fig. 7), the seam allowance II (2bX!b) of the welt cover (2) is fused to the leg Q1, and the welt edge (AA XA4) of 92@ is formed. hated (
#I7 figure (e)). Form it like this and make a large bead (A4) (A4
) is easy to mold and can be provided at a low cost with high productivity.

It should be noted that in each of the above-mentioned embodiments, the bead cover (2) is fused using a frequency wave, but the product of the present invention is not limited to this. ), bead cover material (2) or leg piece (b), leg piece forming part (l1m)
Cloth one of the Km and attach the bead cover (2) to the leg piece I.
It may also be one that is glued to.

The present invention is constructed as described above and has the following effects.

(Li) The seam allowance of the welt edge is rounded and formed into a single plate shape, and the seam allowance of the outer skin member can be easily and precisely overlapped with this seam allowance. Therefore, the outer skin member and the welt edge can be accurately overlapped. Moreover, the workability of sewing has deteriorated.

(2) In addition, the seam allowance is not folded and sewn to the FM during the sewing operation (for bonding to the outer skin member), unlike the conventional beading with two seam allowances.

(3) Furthermore, in the shaping of the bead edges, rounding and shaping of the bead edges are easy and productivity is high, eliminating the need for shank processing.

(4) In addition, there is no need to machine sew, so thin l
A bead with 8 can also be formed into a container.

Therefore, the intended purpose can be achieved.

[Brief explanation of drawings]

Fig. 1 is a perspective view showing a conventional product, Fig. 2 is a partially cutaway perspective view showing how the bead according to the present invention is used, and Fig. 3 is a perspective view showing a state in which the bead according to the present invention is used.
Partially enlarged vertical cross-sectional view in the figure, Figure 4 (()(b)e→
2) Perspective view showing the molding method of the first embodiment, Figure 50)
(b) f→) is a perspective view showing the molding method of the second embodiment;
Fig. 6 (P) (B) e→) is a perspective view showing the molding method of the third embodiment, and Fig. 7 (A) (B) (C)) (E) is a perspective view showing the molding method of the third embodiment.
It is a perspective view showing the molding method of an example. In the figure, (1) shows l8, α9 shows the leg piece, (2) shows the welt cover, (mu) shows the onion covering part, (2b) shows the seam allowance, and (2) (2) shows the seam allowance, respectively.

Claims (4)

[Claims] (1) In a bead made of an onion and a band-shaped bead cover, the bead cover is formed by integrally gluing the widthwise center RCF & stellate onion enveloping part and m seam allowances thereof. The bead of a vehicle seat consists of a sheet of seam allowance. (2) #The bead of a vehicle seat according to claim 1, wherein the wiring allowance is comprised of a leg piece integrally formed on the onion and a seam allowance glued to the leg piece. (3) The welt edge of the car interior seat according to item 1 or 2, wherein the seam allowance is formed by adhesion using a high-frequency welding machine or adhesive. (4) The bead of a vehicle seat according to the range of the %f'Fllil requirement and the second term, which is formed by fixing the onion covering hole in contact with the onion. ) A molded material consisting of a flat leg forming part having a width twice the width of the kaburaki leg and a leading bead forming part integrally installed along both edges thereof, is covered with a bead cover material. 4I#, characterized in that it is formed by adhering the envelope and cutting the center in the width direction.
! The bead of the vehicle seat described in item 2 of the FII Kyo range.