JPH0720175U - Tension adjustment device for rubber band cloth - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a tension adjusting device capable of more reliably pulling a rubber band fabric without slack. [Structure] An upper plate member 8 and a lower plate member 5 for sandwiching the upper and lower surfaces of the rubber band cloth w1 are provided at specific positions of the stationary table 1, and these two plate members are appropriately attached to the same band cloth w. An elastic force generating means 9 for generating an elastic pressure of a magnitude is provided so that the rubber band can be guided to the sewing machine in a state of being appropriately pulled through the space between the two plate members.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a tension adjusting device used in a sewing operation of a rubber cloth.

[0002]

[Prior art]

 Belts such as trousers for sports and leisure, side hems such as jumpers, etc. are sewn with rubber. When sewn with such rubber, as shown in FIG. First, a rubber strip w2 of a certain length is sewn at appropriate intervals to the lower half portion in the vertical direction to form a rubber band w that is sewn at its front and rear ends. As shown in Figure (b), the upper half is folded and sewn to the body, etc., but in order to do this efficiently and with less fatigue, the tension of the rubber band with belt of Japanese Utility Model No. 64-6776 is used. An adjusting device has been proposed. Specifically, it is said that the elastic band w is stretched without being loosened by pulling the elastic band w while sandwiched between the two rollers. .

[0004]

[Problems to be solved by the device]

 In the above-mentioned conventional apparatus, since the two rollers linearly contact the strip w, it may be difficult to uniformly remove the slack of the entire width.

An object of the present invention is to provide a tension adjusting device for a rubber band fabric which can eliminate such problems.

[0005]

[Means for Solving the Problems]

 In order to achieve the above object, the present invention provides an upper plate member and a lower plate member for sandwiching the upper and lower surfaces of a rubber band cloth at specific places of a stationary table, and these two plate members are attached to the same band cloth. An elastic force generating means for generating an appropriate amount of elastic force is provided so that the rubber-attached cloth is guided to the sewing machine in a state of being appropriately pulled through the space between the two plate members. And

[0006]

[Action]

 Due to the elastic force generated by the elastic force generating means, the two plate members are brought into surface contact with an intermediate portion of the rubber band cloth stretched toward the sewing machine to provide an appropriate resistance force. The entire width of the strip is uniformly stretched without slack.

[0007]

【Example】

 FIG. 1 is a perspective view showing a tension adjusting device according to an embodiment of the present invention, and FIG. 2 is a usage diagram of the device.

In the figure, reference numeral 1 denotes a stationary table, in which a horizontal rectangular frame 2 is provided with four leg members 3 ... Further, in the square of the rectangular frame 2, guide members 4 ... Having slits 4a are provided.

Reference numeral 5 denotes a rectangular lower plate member whose front and rear ends are bent downward at an appropriate angle. In this lower plate member 5, screw members 6 ... Are projected from front and rear two positions of each side edge, and each of these screw members 6 is inserted into a slit 4a of the guide member 4, and each screw member 6 is fitted with a nut body 7. The vertical position and the tilt angle can be arbitrarily set by screwing and rotating this.

Reference numeral 8 denotes an upper plate member arranged on the upper surface of the lower plate member 5, and it is preferable to provide a through hole 8a having an appropriate size as needed.

Therefore, the lower plate member 5 and the upper plate member 8 are provided with the elastic force generating means 9 for applying the elastic pressure force when the rubber band cloth w is sandwiched. It is done like this.

That is, the screw rods 10 are erected from the positions near the squares of the lower plate member 5, the screw rods 10 are inserted into the through holes 8 b provided at the corresponding positions of the upper plate member 8, and the screw rods 10 are attached to the screw rods 10. The spring 11 is loosely fitted and a nut body 12 for compressing the spring 11 by an arbitrary amount is screwed.

Reference numeral 13 denotes a front guide means fixed to the stationary table 1, in which guide rods 14 are arranged side by side in a substantially horizontal direction along the introduction direction of the band cloth w into the two plate members 5 and 8. It has been done.

The use example and the operation of the product of the present invention having such a configuration will be described. First, by operating the nut bodies 7 ..., the height and the inclination angle of the lower plate member 5 are changed to the position of the sewing machine and the like. And set appropriately.

On the other hand, the rubber-attached cloth w is alternately passed through the upper and lower portions of the guide rods 14 ... And then passed between the lower plate member 5 and the upper plate member 8, and then at the sewing position of the sewing machine. Attach so as to guide. Then, the magnitude of the elastic force of the elastic force generating means 9 is judged by, for example, manually pulling the band portion p located in front of the sewing machine. When it is too small, the nut body 12 ... , If it is too large, adjust to loosen it.

After that, the sewing machine is operated, and the sewing work is performed under a state in which a proper amount of tensile force is generated on the rubber band fabric w.

During this sewing operation, the front guide means 13 applies a relatively small drag force to the rubber band cloth w, and is engaged with the rubber band cloth w to adjust the magnitude of this resistance force. The number of guide bars 14 is increased or decreased.

Further, the lower plate member 5 and the upper plate member 8 pass through the front guide means 13, and the slack is removed. The elastic force makes a surface contact, and imparts a resistance force of a magnitude that can overcome the extension elastic force of the rubber piece w2 in the movement process of the same band cloth w. For this reason, the rubber band cloth w after passing through the two plate members 5 and 8 is evenly spread over the entire surface and is in a state where there is no slack. You can sew.

In the above embodiment, the front guide means 13 may be provided separately from the two plate members 5 and 5 and the stationary table 1, or may be replaced with other suitable means.

[0020]

[Effect of device]

 As described above, according to the present invention, the two plate members are brought into surface contact with the rubber band cloth to provide resistance, so that the entire surface of the band cloth can be evenly pulled as compared with the conventional one. The slack can be surely removed.

According to the second aspect, it is possible to make the rubber-attached cloth introduced into the two plate members into a good state without slack.

[Brief description of drawings]

FIG. 1 is a perspective view showing a tension adjusting device for a rubber cloth according to an embodiment of the present invention.

FIG. 2 is a view showing a usage state of the apparatus.

FIG. 3 is a diagram showing a sewn strip of rubber pieces.

[Explanation of symbols]

 w Rubber band cloth w1 Rubber piece 1 Stationary table 5 Lower plate member 8 Upper plate member 9 Elastic force generating means

Claims (1)

[Scope of utility model registration request] 1. An upper plate member and a lower plate member for sandwiching the upper and lower surfaces of a rubber band cloth are provided at specific locations of a stationary table, and are appropriately sized to be applied to the same band cloth through these two plate members. Is provided with elastic force generating means for generating elastic force, and the rubber band cloth is guided to the sewing machine in a state of being appropriately stretched between the two plate members. Tension adjusting device.