JP4974240B2 - Manufacturing method of stopper with packing - Google Patents

Description

The present invention relates to a method of manufacturing the packing with a fastener for fixing snap button, the locking member in the metal eyelet or the like to the dough, or, to a method of manufacturing a fastener with a packing for fixing directly to the fabric.

Conventionally, a packing made of an elastic resin between the dough and the hook metal fitting in order to prevent the cloth from leaning in the state where the hook or the eyelet metal fitting is fixed to the cloth, and to prevent the hook or the eyelet metal fitting from rotating. It is well known to intervene.
In addition, when used on a particularly thin nylon fabric such as a body suit for women, the hook needs to be flat. Especially, a fabric such as nylon has a low frictional resistance and slips between the hook. Since it is easy, it must be given a detent.

  In order to solve these problems, the locking shaft portion protruding from the back side of the male and female hooks constituting the hook metal fitting is passed through the cloth and the locking body arranged on the back side of the cloth. In hook metal fittings that fasten and fix the stopper to the fabric by caulking to the body, fine irregularities are densely formed on both the front and back surfaces between the fabric and the stopper, or colored transparent to match the color of the fabric A hook fitting having a synthetic resin washer larger in diameter than the diameter of the stopper is known (see, for example, Patent Document 1).

As a result, the fine irregularities of the front and back surfaces of the washer in the crimped state serve as a detent resistance against the back surface of the stopper and the fabric, thereby preventing detent. In addition, since the washer has a diameter larger than that of the stopper, the wrinkle around the stopper is eliminated, and the cloth is prevented from being damaged by the washer.
Also, the washer is transparent or colored and transparent according to the fabric, and the part that protrudes from the stopper is not noticeable due to the matting due to fine irregularities, and it is formed in a color that matches the fabric, so it looks even better The effect is that there is no sense of incongruity.

  However, in the configuration in Patent Document 1, the number of parts constituting the button is three points, that is, a locking body, a stopper, and a washer, and in the conventional button mounting machine, the three members cannot be used integrally. For this reason, the mounting work is a manual work, the mounting work cannot be performed efficiently, and the mounting work with an automatic machine is impossible.

Therefore, in order to solve these problems, a flange portion that penetrates from one surface of the fabric to the other surface and contacts the one surface side of the fabric in the stopper that locks the button body on the other surface side of the fabric. A locking shaft portion that is provided at substantially the center portion of the flange portion, penetrates to the other surface side of the fabric, and locks the button body to the other surface side of the fabric, and an elastic packing provided on the flange portion. The flange portion is provided at the center portion of the surface of the flange portion opposite to the locking shaft portion, and receives pressure to deform the tip of the locking shaft portion when locking the button body. The packing member has a spacer portion provided on the surface of the flange portion that contacts one surface of the fabric, and a surface of the flange portion on the opposite side of the locking shaft portion from the spacer portion via the connecting portion. At least the outer peripheral edge of the flange part excluding the pressure receiving part Stop are known configured to include a retaining edge covering a portion (e.g., see Patent Document 2).
JP 2005-270573 A JP 2006-68388 A

In the configuration in Patent Document 2, since the packing member is locked and integrated with the stopper in advance, the number of parts does not increase, and the button can be attached to the fabric using a conventional button attachment machine. is there.
However, in this configuration, the packing member includes a spacer portion provided on the surface of the flange portion that contacts one surface of the fabric, and a flange portion on the side opposite to the locking shaft portion from the spacer portion via the connecting portion. Since it includes a holding edge portion that extends on the surface and covers at least a part of the outer peripheral edge of the flange portion excluding the pressure receiving portion, the stopper becomes thick as a whole.
Furthermore, since the packing member in Patent Document 1 and Patent Document 2 is formed of an elastic material such as plastic, the wearer feels bad or lumpy when used on a thin nylon fabric or the like. There is a risk of discomfort.

The present invention solves such problems, and while reducing the overall thickness, the wearer also feels uncomfortable feelings such as poor contact with the skin or ruggedness even with thin fabrics. It is an object of the present invention to provide a method for manufacturing a stopper with packing that does not have.

In order to solve the above-mentioned problems, the manufacturing method of the stopper with packing according to claim 1 of the present invention has a through hole in a substantially central portion and is impregnated with a hot melt adhesive at one end surface. An end face having the hot melt adhesive of a packing member made of nonwoven fabric is formed from a substantially circular flange portion and a cylindrical locking shaft portion provided so as to protrude from a substantially central portion of the flange portion. Placing the flange on the flange, and pressing the end surface of the packing member and extending the packing member in the radial direction without covering the lower surface of the flange edge. And a hot press step in which the end face is melt-fixed and integrated.

Further, the manufacturing method of the packing stopper according to claim 2 of the present invention is characterized in that in the manufacturing method of packing stopper according to claim 1, the flange portion is provided with an annular rib. To do.

A method of manufacturing a fastener with packing of the invention described in claim 3 of the present invention is a method of manufacturing a gasket with fasteners according to claim 1 or claim 2, nonwoven fabric and the fabric is packing member syngeneic It has a color that matches the color or the color of the fabric.

In the invention according to the manufacturing method of the stopper with packing according to claim 1, since the packing member is a substantially circular non-woven fabric larger than the diameter of the flange portion, the anti-rotation effect of the flange portion is the same effect as the conventional packing. Of course, it is possible to manufacture a stopper with packing that has effects such as prevention of fabric wrinkles in the surroundings, prevention of fabric damage, prevention of cutting of the fabric by the flange, and prevention of stopper removal.
In addition, the end face of the packing member having the hot melt adhesive is placed on the flange part, and the end face is fused and fixed to the flange part by heat pressing, so that the conventional button mounting is possible without increasing the number of parts. The machine can be used to engage the locking body or the fabric.
In addition, since a non-woven fabric is used for the packing member, when the produced stopper with packing is used for a thin nylon fabric or the like, a packing made of an elastic material such as plastic is used. The weight can be reduced as compared with the wearer, and the wearer does not have a discomfort such as poor contact with the skin or lumpyness.

Further, in the invention relating to the manufacturing method of the stopper with packing according to claim 1, since the end surface of the packing member is pressed by the hot press and stretched in the radial direction, the flange edge is covered and melted and fixed so as to be integrated. The overall thickness of the stopper with packing can be reduced, and the state in which the flange edge is exposed can be prevented.
As a result, it is possible to eliminate the fact that the flange edge portion bites into the fabric due to the pressure applied by the press when engaged with the locking body or the fabric, and the portion is broken or the durability of the fabric is reduced. . Moreover, there is no risk of injury due to the flange edge.

And since the invention which concerns on the manufacturing method of the stopper with packing of Claim 2 comprises an annular rib in a flange part, the end surface in a packing member is pressed by heat press, and it deform | transforms into a substantially identical shape and a diameter. Since it extends in the direction, covers the flange edge, and is melted and fixed and integrated, the thickness of the stopper with packing can be reduced.

In the invention according to the manufacturing method of the stopper with packing according to claim 3, since the nonwoven fabric which is the packing member has a color similar to the fabric or a color matched to the color of the fabric, the appearance on the exterior is also well-designed Can be improved.

  Hereinafter, the stopper with packing in embodiment of this invention is demonstrated based on drawing.

  FIG. 1 is a perspective view of a member arrangement state before forming (a) a packing member used in a stopper with packing according to Embodiment 1 of the present invention, and (b) after being processed into a circular shape having a through hole. It is a perspective view. FIG. 2 is an enlarged vertical sectional view before (a) fixing the circular packing used in the stopper with packing according to Embodiment 1 of the present invention to the stopper, and (b) an enlarged vertical sectional view after fixing. is there. FIG. 3 is an enlarged vertical cross-sectional view when the stopper with packing according to the first embodiment of the present invention is arranged on the fabric.

  Example 1 of the stopper with packing according to the present invention will be described with reference to FIGS. 1 and 2.

  As shown in FIGS. 2 (a) and 2 (b), the stopper 6 with packing according to the embodiment of the present invention has a locking body (not shown) as a male snap portion or a female snap portion in the snap button. 7 and a circular packing 4 formed by processing a packing member 3 made of nonwoven fabric.

As shown in FIG. 1A, the packing member 3 is composed of a nonwoven fabric 1 and a hot melt adhesive 2. Specifically, the packing member 3 is formed by thermally welding and impregnating the hot melt 2 to the nonwoven fabric 1. Moreover, in the color of the nonwoven fabric 1, it is not restricted to one color, The design property can be improved by using the color similar to the fabric 7 attached later, or the color match | combined with the color of the fabric 7. FIG.
Thereafter, as shown in FIG. 1B, the packing member 3 is punched into a substantially circular shape by press working to form a circular packing 4. The circular packing 4 is provided with a through hole 4a having a substantially similar shape at the center of the circle at the same time as pressing. Further, the outer diameter of the through hole 4a is formed to be slightly larger than a locking shaft portion 5a in the stopper 5 described later.

As shown in FIG. 2A, the stopper 5 has a substantially circular flange portion 5b located on one end face side of the fabric 6, and a cylindrical shape provided so as to protrude from a substantially central portion of the flange portion 5b. It is comprised from the latching shaft part 5a. At this time, the flange edge portion 5 c that forms the outer diameter of the flange portion 5 b is formed to be slightly smaller than the outer diameter of the circular packing 4. Further, in the radial direction, a rib portion 5b on the side having the locking shaft portion 5a, and a rib that improves the strength of the flange portion 5b at a substantially central portion between the locking shaft portion 5a and the flange edge portion 5c. 5d is provided. In the vicinity of the convex portion 5d, there is a concave portion 5e that is formed by pressing at the same time as the convex portion 5d and becomes a similar rib.
In addition, when the strength of the flange portion is sufficient, it is not necessary to have the convex portion 5d and the concave portion 5e serving as ribs.

The circular packing 4 and the stopper 5 formed in this way are arranged as shown in FIG. 2A and are fixed as shown in FIG.
Specifically, the centers of the circular packing 4 and the stopper 5 are aligned, the hot melt adhesive 2 side is opposed to the convex portion 5d side, and the locking shaft portion 5a of the stopper 5 is passed through the through hole in the circular packing 4. 4a is inserted and placed on the convex portion 5d. Then, since both are hot-pressed, the hot melt adhesive 2 impregnated in the circular packing 4 adheres to the flange portion 5b in contact therewith, so that both can be integrated. At this time, since the circular packing 4 is pressed by the hot press, the flat surface of the circular packing 4 that is in contact with the convex portion 5d is processed into the same shape as the convex portion 5d and the concave portion 5e, and in the radial direction. It is stretched toward.
Thereby, the circular packing 4 formed so as to be slightly larger than the outer diameter of the flange edge portion 5c is stretched in the radial direction, and the flange edge portion 5c can be covered by undergoing hot pressing. it can. Therefore, the thickness of the circular packing 4 can be reduced, and the flange edge 5c can be covered, so that the exposed state of the flange edge 5c can be prevented. At this time, it is not intended that the flange edge portion 5c is covered by cutting up part of the flange portion 5b on the side not having the circular packing 4.

  As shown in FIG. 3, the stopper 6 with packing formed in this way is disposed on one end surface side of the fabric 7 having a through hole (not shown) and then disposed on the other end surface side. The male snap portion or the female snap portion is configured by being engaged with a locking body (not shown) serving as a male snap portion or a female snap portion in the button.

As mentioned above, according to the stopper 6 with packing which concerns on Example 1 of this invention demonstrated since the nonwoven fabric 1 is used for the circular packing 4 in the stopper 6 with packing, it is an effect similar to the conventional packing. Needless to say, there are effects such as prevention of rotation, prevention of fabric wrinkles around the flange, and prevention of damage to the fabric.
Further, the circular packing 4 made of the nonwoven fabric 1 is pressed by hot pressing, and the flat surface of the circular packing 4 in contact with the flange portion 5b is processed into the same shape as the convex portion 5d and the concave portion 5e, and the radial direction. The circular packing 4 can be made thinner. Thereby, the whole thickness of the stopper 6 with packing can be made thin.
When such a stopper 6 with packing is used for a thin nylon fabric or the like, since a non-woven fabric is used in particular, the packing 6 made of an elastic material such as plastic is used. Thus, the wearer does not have a discomfort such as poor contact with the skin or lumpyness.
Furthermore, the flange edge 5c can be covered by extending the circular packing 4 formed so as to be slightly larger than the outer diameter of the flange edge 5c in the radial direction and undergoing hot pressing. Therefore, the state where the flange edge 5c is exposed can be prevented. As a result, the flange edge 5c bites into the fabric 7 due to the pressure applied by the press when engaging the locking body (not shown) to be the male snap portion or the female snap portion of the snap button, or the portion is broken. It is possible to solve the problem of decreasing the durability of the fabric. Further, there is no risk of injury due to the flange edge 5c.
Moreover, since the circular packing 4 uses the color similar to the cloth 7, or the color matched with the color of the cloth 7, the appearance on the appearance can be improved and the design can be improved.
Furthermore, since the circular packing 4 is fixed to the stopper 5 in advance by the hot melt adhesive 1 and integrally formed, the stopper 6 with packing is formed, so that the conventional button mounting machine is used without increasing the number of parts. Then, it can be attached to the fabric 7 by engaging with a locking body (not shown) which becomes a male snap portion or a female snap portion in the snap button.
In addition, when using these effects for thick fabrics or the like, it is a matter of course that the same effects can be obtained.

  The stopper 6 with packing in the present invention is not limited to a snap button, but an eyelet fitting formed by locking the stopper to a ring-shaped locking body placed on one end surface of the fabric 7, or Of course, the present invention can also be applied to a rivet fitting that is directly locked to the fabric 7 without having a locking body.

BRIEF DESCRIPTION OF THE DRAWINGS It is the perspective view after a member arrangement state perspective view before forming (a) the packing member used for the stopper with packing concerning Example 1 of the present invention, and (b) circular shape which has a penetration hole. . It is an enlarged vertical sectional view before (a) adhering the circular packing used for the stopper with packing concerning Example 1 of the present invention to a stopper, (b) An enlarged vertical sectional view after adhering. It is an expansion vertical sectional view at the time of arranging a stopper with packing concerning Example 1 of the present invention on cloth.

DESCRIPTION OF SYMBOLS 1 Nonwoven fabric 2 Hot melt adhesive 3 Packing member 4 Circular packing 4a Through-hole 5 Stopper 5a Locking shaft part 5b Flange part 5c Flange edge 5d Convex part 5e Concave part 6 Stopper 7 with packing

Claims (3)

An end surface of the packing member made of a nonwoven fabric having a through hole in the substantially central portion and impregnated with a hot melt adhesive at one end surface is formed with a substantially circular flange portion and an approximate shape of the flange portion. A step of placing on a flange portion of a stopper composed of a cylindrical locking shaft portion provided protruding from the central portion;
The end surface of the packing member is pressed, and the packing member is stretched in the radial direction without covering the lower surface of the flange edge, covering the side of the flange edge and melting and fixing the end surface integrally. And heat press process
The manufacturing method of the stopper with packing characterized by providing. The method for manufacturing a stopper with packing according to claim 1, wherein the flange portion includes an annular rib . The method for manufacturing a stopper with packing according to claim 1 or 2, wherein the nonwoven fabric as the packing member has a color similar to the fabric or a color matched to the color of the fabric .

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