JPH0535072U - Sewing machine tape guide - Google Patents

Abstract

(57) [Summary] [Purpose] Securely sew the tape around the edge of the fabric with the edge of the flat tape folded. [Structure] The machine is fixed to the machine frame and the flat tape is erected from the crossing direction with the cloth feeding direction while being vertically erected and the edges of the tape are gradually bent. The folding part is provided with a separating part for preventing interference between the bent edge of the tape and the body material.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a tape guide tool called a so-called knuckle wrapper for bending the edge of a flat tape and guiding it to a sewing portion of a sewing machine.

[0002]

[Prior Art]

 Conventionally, this type of tape will be described by taking four windings shown in FIG. 3 as an example. A flat tape T is vertically transferred from a crossing direction Y with a cloth feeding direction X and gradually moved to both ends of the tape T 2. Is bent inwardly, and then the central portion of the tape T is recessed in the cloth feeding direction X in front of the sewing portion of the sewing machine to be folded back as a concave portion 2.

As a result, both ends of the flat tape T are bent inward as shown in FIG. 5 to form bent edges 1A and 1B, respectively. As shown in FIG. 5, the body material B is inserted and the bent portion of the tape T and the body material B are sewn together in the state of FIG. However, as shown in FIG. 5, in the conventional tape guide tool A, which is called a knuckle wrapper of this type, the cloth A is folded back in the cloth feeding direction X and the edges 3A and 3B are simply linear.

[0004]

[Problems to be solved by the device]

 As described above, since the edges 3A, 3B for folding the tape of the conventional tape guide A are straight, the folded edges 1A, 1B of the folded tape T are as shown in FIG. Directly contact the upper and lower surfaces of the body cloth B. In particular, this type of chanoco wrapper is suitable for stitching a cloth whose edge is bent, so that the edge of the body cloth B is located at a fixed position inside the recess 2 of the folded tape T. Thus, when the operator operates the body material B to the left and right, the bending edges 1A and 1B of the tape T move left and right accordingly, causing the bent tape T to lose its shape. There was a problem that the quality of the sewn product deteriorated and the sewing efficiency decreased because the tape was unsewn with respect to B and the winding method of the tape was uneven. In particular, this phenomenon often occurs in tapes made of difficult materials such as satin that have no stiffness.

[0005]

[Means for Solving the Problems]

 In order to solve the above-mentioned problems, the present invention is directed to a tape guide of this type, in which a folding part of the tape in the cloth feeding direction is provided with a separating part for preventing interference between the bent part of the tape T and the body material. Is provided.

[0006]

[Action]

 In the tape guide tool configured as described above, the folding edge of the folded tape T is moved left and right by the operator operating left and right to keep the position of the body material constant. In the part that moves to, the separating part feeds it in the cloth feeding direction without making direct contact with the body material.

[0007]

【Example】

 An example in which four tapes are wound and sewn on the body cloth will be described with reference to FIGS. 1 and 2. Reference numeral 4 denotes a mounting plate which is fixed to the machine frame of the sewing machine, and the tape guide A is fixed to one end of the mounting plate so that the right end is substantially perpendicular to the cloth feeding direction X and is vertical.

The internal structure of the tape guide A is the same as that of the conventional one, and the flat tape T inserted from the right end gradually bends both ends of the tape T inward as it moves inside. It will be tuned. Reference numerals 3A and 3B are folding edges, and in this portion, the tape T whose both ends are folded inward is folded in the X direction of the cloth feeding direction with the central portion thereof being recessed to form the concave portion 2.

Reference numerals 5A and 5B are tongue pieces as a separating portion, and slightly extend in the cloth feeding direction by winding the outer sides of the tongue pieces 3A and 3B with a gap between the tongue pieces and the folding end edges 3A and 3B. .. The present invention has the above-described structure. As the tape T inserted from the right end into the tape guide A moves inside the vertical portion, both ends of the tape T are gradually bent inward. Then, the tape T whose both ends are folded is folded back at the edges 3A and 3B so that the central portion of the width of the tape T is indented and folded back substantially at right angles to the cloth feeding direction.

As a result, the tape T is formed into a lateral U-shape by folding the bent edges 1A and 1B inside the tongues 5A and 5B, as shown by the chain double-dashed line in FIG. The body material B is inserted into the shape of a letter and is introduced into the sewing section of the sewing machine in this state, the sewing machine is driven and the tape and the body material are fed in the cloth feed direction by the cloth feeding mechanism of the sewing machine. The tape T is sewn to the end edge in a state of four windings.

Then, as described above, when the body material B is inserted into the inside of the tape T formed in the lateral U-shape, as shown by the chain double-dashed line in FIG. The tongue pieces 5A and 5B as separating portions successively and sequentially feed 1B in the cloth feeding direction in a state where they do not interfere with the upper and lower surfaces of the body cloth B.

In the above embodiment, the tape guide tool having four windings is described, but the present invention can be applied to a tape guide tool having two windings, three windings, and the like. Further, the structure in which the tips of the tongue pieces 5A and 5B as the separating portions are separated is shown, but as shown in FIG. 3, the tips of the tongue pieces 5A and 5B are formed into a U-shaped internal U-shape. It is also possible to form the tape continuously so that the tape T and the dough do not come into contact with each other at all. Furthermore, in the illustrated embodiment, the tongue pieces 5A and 5B as the separating portions are formed on the tape guide tool A, but the tongue pieces may be configured to extend from a sewing machine frame different from the tape guide tool. You can also

[0013]

[Effect of the device]

 As described above, according to the present invention, when the body material is inserted into the inside of the tape which is formed into a lateral U shape by bending the edge, the bent edge 1A, 1B of the tape T and the body material B are inserted. Since the tongues 5A and 5B serving as the separating portions keep them from coming into contact with each other, even if the operator moves the body cloth B to the left or right in order to keep the side end position of the body cloth B constant, Since the bent edges 1A and 1B of the tape T do not lose their shape, the bent edges of the tape T are not sewn with respect to the body material B, and the winding dimension of the tape T is not irregular. It is possible to always sew reliably, which not only improves the quality of sewn products, but also improves the efficiency of sewing work, and has the effect that it can be sewn securely even with a tape made of a hard material such as satin that is not stiff. ..

[Brief description of drawings]

FIG. 1 is a perspective view of a tape guide tool of the present invention.

FIG. 2 is a partially enlarged view from arrow C in FIG.

FIG. 3 is a partially enlarged view similar to FIG. 2 showing another embodiment.

FIG. 4 is a perspective view showing a bent state of the tape.

FIG. 5 is a perspective view of a tip portion of a conventional tape guide tool of this type.

6 is a view from the arrow D in FIG.

[Explanation of symbols]

 A tape guide tool T tape 1A, 1B folding edge 3A, 3B folding edge 5A, 5B tongue piece (separation part)

Claims (1)

[Scope of utility model registration request] 1. A flat tape T fixed to a machine frame of a sewing machine is erected from an intersecting direction with a cloth feed direction while being vertically erected, and then an edge of the tape T is gradually bent. In the guide tool for guiding the folding back to the sewing machine suture portion, the tape T is provided at the folding back portion in the cloth feeding direction.
A tape guide tool for a sewing machine, which is provided with a separating portion that prevents interference between the bent edge and the body cloth B.