JP2571602Y2 - Ball for seat - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a decorative bead for sewing on a sewn portion of a seat cover such as a vehicle seat or a reception seat.

[0002]

2. Description of the Related Art A bead for a sheet in which a bead core material is wound and wrapped with a bead skin made of a strip-shaped material is disclosed in Japanese Utility Model Application Laid-open No. 60-16 / 1985.
Although various proposals have been made as shown in Japanese Patent Publication No. 5000, etc., since the core material for the ball and the skin for the ball are not bonded at all, this type of ball for a sheet has a core material for a ball and a ball material. A twisting phenomenon may occur between the skin and the skin, which may hinder the sewing operation or may cause the core to come off. Therefore, the actual opening 62-15
Japanese Patent No. 7500 discloses that the above-mentioned problem is solved by bonding the core material for the bead to the entire inner surface of the skin for the bead, but the core material for the bead is entirely provided on the inner surface of the skin for the bead. Adhesives may lose their appearance due to oozing out of the adhesive, and when sewing on curved parts, the skin for the bead has no degree of freedom with respect to the core for the bead. Is left.

In order to solve such a problem, the present applicant has previously proposed a device in which a core material for a bead and a skin for the bead are bonded at a linear bonding portion as Japanese Utility Model Application No. 3-73829. Even in the case of this prior application, it is inevitable that a part of the linear adhesive oozes to the base end of the sewn portion. When sewing is performed by intervening between the stitches of the sewing machine, if the needle passes through the linear bonding portion, the adhesive adheres to the sewing thread or the needle, causing the needle to be broken, thereby impairing the sewing workability. Was.

[0004]

SUMMARY OF THE INVENTION The present invention solves the above-mentioned conventional problems, and causes a twisting phenomenon or a center loss between the core material for the bead and the skin for the bead. There is no danger, and it solves the finishing problems caused by seepage of the adhesive on the surface of the bead skin.In addition, when sewing the bead, the sewing thread or needle touches the linear adhesive and the adhesive is An object of the present invention is to provide a sheet bead having improved sewing workability by eliminating needle breakage caused by adhering to a sewing thread or a needle.

[0005]

According to the present invention, which has been made to solve the above-mentioned problems, the sheet core of the present invention is formed by enclosing the core of the core material for the ball with a skin for the frame made of a band-shaped material. In the sheet ball, a groove extending in the axial direction is provided on the outer peripheral surface of the ball core portion, and the skin for the ball is linearly bonded to the core material for the ball with an adhesive filled in the groove. It is characterized by the following.

[0006]

The seat bead is sewn to a sewn portion of a vehicle seat cover, for example, with a seam allowance, and is reinforced with a bead core, like the conventional seat bead. What is necessary is just to exhibit a decorative effect by a material insertion part.

[0007]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. In the first to fourth embodiments shown in FIGS. 1 to 4, reference numeral 1 denotes a skin for a bead, and the skin for the bead 1 is formed by bending a band-shaped material such as a pile ground or a synthetic resin ground. A core insertion part 2 and a sewing margin 3 following the core insertion part 2 are formed.
Is an elongated core material for a bead formed of a synthetic resin or the like, and the bead core material 4 extends in the axial direction on an outer peripheral surface of a ball core portion 4a having a circular cross section formed of a synthetic resin or the like. A groove 5 for storing the adhesive is provided. Reference numeral 6 denotes a hot melt adhesive filled in the groove 5.

FIG. 5 shows a fifth embodiment of the present invention. The difference from the above-mentioned four embodiments is that the beading skin 1 and the sewing allowance 3 are integrally formed. The outer skin 1 for the bead has only the cylindrical core insertion portion 2, while the core 4 for the bead has a fin-shaped portion integrally formed with a round core 4 a having a circular cross section, which is used as a sewing allowance 3. The point is that the groove 5 for storing the adhesive extending in the axial direction is provided on the outer peripheral surface of the ball core portion 4a and the hot-melt type adhesive 6 is filled into the groove 5 as in the above-described four embodiments. is there. Then, the core material 4 for a ball with the adhesive 6 filled in the groove 5 of the ball core 4 a is inserted into the core insertion portion 2 of the skin 1 for the ball, and the groove 4 is inserted into the groove 5. The filled adhesive 6 is linearly bonded to the inner surface of the beading skin 1.

Since the number of the concave grooves 5 may be at least at the portion where the edge of the beading skin 1 and the base end of the sewing allowance 3 are located, FIGS. 1, 2, 4 and 5 are usually used. 1-2 as shown in
Although a book may be used, it is needless to say that an appropriate number of concave grooves 5 may be additionally provided in other portions as shown in FIG.

[0010] With the above-mentioned structure, for example, a core material insertion portion which is shaped by a ball core portion 4a by interposing a sewing margin 3 at a seam portion between a top plate member and a stile member of a vehicle seat cover. 2 is sewn in a protruding state so as to conceal the suture line, and the decoration effect is measured by the core material insertion portion 2 protruding so as to conceal the suture line. The ball core portion 4a of the material 4 is linearly formed with the adhesive 6 filled in the groove 5 for storing the adhesive in the axial direction provided on the inner surface of the ball skin 1 on the outer peripheral surface of the ball core portion 4a. Since they are adhered, a twisting phenomenon does not occur between the core material 4 for the bead and the skin 1 for the bead, so that the twisting phenomenon does not hinder the sewing work and the core is not removed. There is no possibility that it will happen.

In addition, since the beading skin 1 and the beading core material 4 are linearly bonded by the adhesive 6 in the concave groove 5 extending in the axial direction, the bonded portion cannot be seen from the outside.
The appearance that the adhesive 6 oozes to the outside and the appearance is not impaired, and that the beading skin 1 and the beading core material 4 are partially linearly bonded, is that the beading skin 1 Does not completely lose the degree of freedom with respect to the core material 4 for the bead, so that it can be slid in any direction within the elasticity range of the skin 1 for the bead and can be properly sewn to a curved portion or the like. And a good-looking finish can be obtained.

An important point in the present invention is that the adhesive 6 is filled in the axial groove 5 provided in the ball core 4a of the ball core 4 so that The filling of the groove 5 completely prevents the adhesive 6 from seeping into the seam allowance 3, and only the core material insertion portion 2 protrudes from the seam portion of the vehicle seat cover so as to hide the seam line. When the sewing machine is intervened with the sewing allowance 3 in the state and sewn, the sewing needle and the sewing thread do not touch the adhesive 6 oozing into the sewing allowance 3 and adhere to the needle or the sewing thread at all, and the adhesive is removed. Needle breakage caused by sticking to a needle or a sewing thread can be eliminated, and sewing workability can be significantly improved.

In the above embodiment, the core 4a of the core 4 for a bead is continuously bonded to the inner surface of the skin 1 for the bead, but the adhesive 6 is inserted into a groove 5 extending in the axial direction. May be filled discontinuously.

[0014]

As is clear from the above description, the present invention provides an axially extending concave groove in the core portion of a core material for a ball, and uses the adhesive filled in the concave groove to form a ball for the ball. Since the core material and the skin for the ball are linearly bonded to each other, there is no possibility that the core material for the ball and the skin for the ball will be twisted or the core will not come off. The sewing machine needle has a good finish, and the adhesive filled in the concave groove does not ooze into the sewing allowance at all. Needle breakage that occurs when the sewing thread touches the adhesive that has oozed into the sewing allowance and the adhesive adheres to the needle or the sewing thread is eliminated, and there is also an advantage that sewing workability is significantly improved. Therefore, the present invention has a very high practical value as a sheet bead for eliminating the conventional problems.

[Brief description of the drawings]

FIG. 1 is a partially cutaway perspective view showing a first embodiment of the present invention.

FIG. 2 is a partially cutaway perspective view showing a second embodiment of the present invention.

FIG. 3 is a partially cutaway perspective view showing a third embodiment of the present invention.

FIG. 4 is a partially cutaway perspective view showing a fourth embodiment of the present invention.

FIG. 5 is a partially cutaway perspective view showing a fifth embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Skin for bead 2 Core insertion part 3 Sewing allowance 4 Core for bead 4a Ball core 5 Depressed groove 6 Adhesive

Claims (1)

(57) [Scope of request for utility model registration] 1. A sheet ball in which a ball core (4a) of a ball core material (4) is wrapped with a ball skin (1) made of a band-shaped material, wherein the ball core (4a) A groove (5) extending in the axial direction is provided on the outer peripheral surface, and the bead skin (1) is linearly bonded to the bead core (4) with the adhesive (6) filled in the groove (5). A bead for a sheet, characterized in that it is provided.