JPH1157264A - Wadding material sewing machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a wadding material sewing machine having excellent workability. SOLUTION: A wadding material sewing machine has: a bifurcated outer pressing member 2 pressing and positioning wadding material 21 which is the object of sewing and a surface cover material 20; an intermediate pressing member 4 located at the center of the outer pressing member 2 to guide a sewing needle 3; and a side guide 5 guiding the side face of the object of sewing. In this case, a pushing guide 6 preventing the side edge of the wadding material from stick out by pushing the side edge of the wadding material 21 toward the sewing needle 3 past the guide surface of the side guide 5, at a position immediately in front of the outer pressing member 2, is provided.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sewing machine for sewing a wadding material having excellent workability.

[0002]

2. Description of the Related Art For example, as a sewing machine for sewing a skin material used for automobile seats and the like, a bifurcated outer holding member for pressing and positioning the skin material, and a sewing needle at the center of the outer holding member. And a side guide that guides a side surface of the wadding material are widely used. On the other hand, in recent automobile seats and the like, a thick wadding material is sewn integrally on the back surface of the skin material for the purpose of improving the feel when sitting and giving a sense of volume and improving the appearance. Is increasingly used.

However, when a thick wadding material is to be integrally sewn with a conventional sewing machine, the problem that the wadding material is pushed outward by the outer pressing member and is displaced from the skin material and the seam allowance is constant. There was a problem that it did not become. Further, in order to solve this, it is necessary to perform the sewing operation while manually pushing the wadding material protruding outward into the inside, and there is a problem that the working efficiency is inferior. On the other hand, since the thick wadding material to be sewn is a cotton-like material and has a fluffy surface, the sewing operation may be interrupted by being caught or climbed on the tip of the outer holding member, and the workability is extremely high. There was also a problem that it was bad.

[0004]

SUMMARY OF THE INVENTION The present invention solves the above-mentioned conventional problems and prevents the wadding material from protruding outward and causing a deviation from the skin material, and always keeps the seam allowance constant. In addition, the present invention has been completed with the object of providing a sewing machine for sewing a wadding material capable of preventing a wadding material from being caught or climbing on a distal end portion of an outer holding member and performing sewing work efficiently. It is a thing.

[0005]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, a sewing machine for sewing a wadding material according to the present invention is a bifurcated outer press for positioning a wading material to be sewn together with a skin material. A sewing machine for sewing a wading material, comprising a member, a middle pressing member at a central portion of the outer pressing member for guiding a sewing needle, and a side guide for guiding a side surface of the sewing object, wherein the outer pressing member is provided. Immediately before the step (a), a pushing guide is provided to push the side edge of the wadding material toward the sewing needle side beyond the guide surface of the side guide to prevent the edge of the wadding material from protruding.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described below with reference to the drawings. The drawing shows a sewing sewing machine for sewing a sewing material composed of a skin material 20 and a wading material 21 used for an automobile seat. In the drawing, 1 is a sewing machine main body, and 2 is a pressing machine for the sewing material. Bifurcated outer holding member 3 for positioning
Middle holding member for guiding the sewing needle 4 at the center of the
Is a side guide for guiding the side surface of the sewing object,
The above configuration is basically the same as this type of conventional sewing machine.

In the present invention, the side edge of the wadding material 21 is fixed to the side guide 5 immediately before the outer pressing member 2.
A pushing guide 6 is provided which is pushed toward the sewing needle 4 side of the guide surface to prevent the wadding material side edge from protruding. As shown in FIG. 2, the pushing guide 6 is used to cover the portion where the thick wadding material 21 is compressed by the outer pressing member 2 and the side edge portion protrudes outward.
This is for automatically and forcibly pushing in to the same or inner side as the side edge portion 0, thereby always securing a sewing margin of a constant width.

As shown in FIG. 3, the pushing guide 6 is formed of an L-shaped member and its base is formed by the side guide 5.
Is rotatably pivoted so as to swing slightly back and forth with respect to the traveling direction of the sewing object. It is configured so that it can be pushed down. Further, the contact portion 6a with the wadding material 21 is formed of a synthetic resin having excellent hardness and slipperiness such as polyacetal resin, polyethylene resin, polypropylene resin, and poamide resin, and a metal such as stainless steel and aluminum. The wadding material 21 is configured to be able to be pushed in smoothly.

As shown in FIGS. 4 and 5, a loop-shaped hook prevention guide 7 is attached to the upper surface of one leg of the outer pressing member 2, and a wadding material 21 is provided at the tip of the leg. It is configured not to be caught or climbed on. Further, as shown in FIG. 6, a vertical groove 8 for linearly guiding the wadding material 21 is formed on the bottom surface of the outer pressing member 2, thereby increasing the efficiency of the sewing operation.

In the above-mentioned construction, when the wadding material 21 and the skin material 20, which are sewn objects, are supplied to the sewing machine main body 1 so as to be sewn with a fixed margin, the sewn material is forked. The outer pressing member 2 is pressed and positioned, and is sewn with the sewing needle 3 while being guided by the middle pressing member 4 at the center of the outer pressing member 2. The side surface of the sewing product is guided with a predetermined width. Immediately before the outer holding member 2, a pushing guide 6 is provided to push the side edge of the wadding material 21 toward the sewing needle 3 side beyond the guide surface of the side guide 5 to prevent the wading material side edge from protruding. Because it is, wadding material 21
Is thick, and in the past, it has protruded outward due to the pressing force of the outer pressing member 2 and has been displaced from the skin material 20, but the protruding guide 6 completely prevents the protruding. As a result, even though the wadding material 21 is thick, the sewing allowance of the sewn material can be set to a constant width, and the sewing operation can be performed while manually pushing the wadding material 21 that has protruded outward into the inside as in the related art. Work efficiency can be significantly increased without the need to perform.

Further, since the loop-shaped hooking prevention guide 7 is attached to the outer holding member 2, the wadding material 21 having a fluffy surface can be caught on the leading end of the outer holding member or run up. As a result, the workability can be significantly improved. Further, when the vertical groove 8 is formed on the bottom surface of the outer pressing member 2, the wadding material 21 can be guided linearly, and sewing workability is further improved.

[0012]

As is clear from the above description, the present invention can prevent the wadding material from protruding outward and causing a deviation from the skin material, and can always keep the seam allowance constant. Can be prevented from being caught or climbing on the distal end portion of the outer holding member, and the sewing operation can be performed efficiently. Therefore, the present invention greatly contributes to industrial development as a sewing machine for sewing a wading material that has solved the conventional problems.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an embodiment of the present invention.

FIG. 2 is an explanatory diagram of an operation state of a pushing guide.

FIG. 3 is a plan view showing a side guide and a pushing guide.

FIG. 4 is a perspective view showing a main part of an outer pressing member.

FIG. 5 is an explanatory diagram of an operation state of an outer pressing member and a hook prevention guide.

FIG. 6 is a plan view showing a bottom surface of the outer pressing member.

[Explanation of symbols]

 2 outer holding member 3 sewing needle 4 middle holding member 5 side guide 6 push-in guide 7 hook prevention guide 8 vertical groove 20 skin material 21 wading material

Claims (4)

[Claims] 1. A bifurcated outer pressing member (2) for positioning a wadding material (21) to be sewn together with a skin material (20) by pressing the wading material (21), and a central portion of the outer pressing member (2). And a side guide (5) for guiding a side surface of the work to be sewn, wherein the outer pressing member (2) is provided. Immediately before, a pushing guide (6) is provided to push the side edge of the wadding material (21) toward the sewing needle (3) beyond the guide surface of the side guide (5) to prevent the wading material side edge from protruding. A sewing machine for sewing wadding materials, characterized by the following features. 2. The sewing machine according to claim 1, wherein the push-in guide comprises an L-shaped member, and a base of the push-in guide is pivotally connected to a base of the side guide. 3. The sewing machine according to claim 1, wherein a loop-shaped hook prevention guide (7) is attached to the outer holding member (2). 4. A sewing machine for sewing a wadding material according to claim 1, wherein a vertical groove (8) for guiding the wadding material linearly is formed on a bottom surface of the outer pressing member (2). .