JPS646776Y2 - - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to a tension adjustment device for banded rubber.

Elastic bands are sewn to the belts of sports and leisure pants, and to the side hems of jeans. Rubber pieces of a certain length are sewn at appropriate intervals at the front and back ends, and then the upper half is folded over while being pulled in the length direction and sewn to the body. There is no device for holding the sewing machine in a tensioned state, and sewing is performed exclusively by hand at the sewing machine position while pulling the sewing machine.

By the way, this (constantly pulling by hand)
It is difficult to cross the bridge, and the workability is also poor, resulting in high costs.

In view of the above points, the present invention provides a tension adjustment device for this purpose, which allows sewing work to be carried out arbitrarily and freely without the need for manpower, thereby contributing to improved productivity.

The present invention will be explained below based on the drawings.

FIG. 1 is a perspective view of the entire device. 1 is front leg 1
The main body of the frame consists of four legs: a, 1b, rear legs 1c, 1d, and horizontal angles, 1e, 1f.
A fixed roller 2 is installed above a and 1b, and a polytetrafluoroethylene resin 3 having a thickness of about 0.1 to 0.2 mm is adhered to the upper surface of the roller.
4 is a presser roller means for horizontal angles 1e and 1f.
Arm rods 4a, 4b of a certain length are swingably attached to the arm rods 4a, 4b via a pin shaft 4c, and the arm rods 4a, 4b are
A presser roller 4d is rotatably attached to a location corresponding to the fixed roller 2 in b via a pin shaft 4e. Note that 4f is a guide rod that bridges the tips of the arm rods 4a and 4b.

On the other hand, reference numeral 5 denotes a guide adjustment means, which stands up guide plates 5a and 5b of a certain length in the vertical direction of the positions of the rear legs 1c and 1d, and drills a slit S in the length direction of each guide plate, as well as between the two slits. Guide rod 5 to be able to slide
c is constructed, and a nut m is screwed into the male screw threaded at both ends of the rod, and the rod is fixed at an arbitrary height position.

On the other hand, reference numeral 6 denotes a pressure means which has through holes 6a and 6b formed near the tips of the arm rods 4a and 4b so that the presser roller 4d is placed on the fixed roller 2 with an appropriately adjusted pressure force. together with springs 6c, 6
One end of d is locked, and the lower end of each spring is attached to the front leg 1.
L-shaped angle 6e fixed to the front part of a, 1b,
It is designed to be locked with retaining rings 6g and 6h of 6f. Here, the retaining rings 6g and 6h are L-shaped angles 6.
It is made to be able to slide in the slit s bored in the length direction of e and 6f, and the nut n is attached on the opposite side.
It is designed to be fixed in any position using the .

FIG. 2 shows a banding rubber body 7 in which fixed lengths of rubber are attached at appropriate intervals in the longitudinal direction of one half part 7b (lower half part in the illustrated example) of a banding cloth having an appropriate width at another location (not shown). It is made by sewing the piece 7c only at its front and rear ends.

3A and 3B are explanatory views of the operation of guiding the banding rubber body 7 to the sewing machine device using the above device, and first, as shown in A, the arm rods 4a, 4
Lift guide rod 4f by lifting b slightly upwards.
The guide rods 4a and 4b are guided from above to below the presser roller 4d, and the arm rods 4a and 4b are thereby clamped to the fixed roller 2 by a constant pressure, and then the guide rod 5c is pulled upward ( Figure B) The upper half part 7a of the banding rubber body is folded over the lower half part 7b using the guide rod 5c and the unillustrated shoulder pipe, and is then sewn together with the body fabric of the pants by a sewing machine (not shown). It is like wearing clothes.

The device of the present invention has the above-mentioned configuration, and since a constant pressure is applied between both the fixed roller 2 and the presser roller 4d, the banded rubber body shrunk by the rubber piece 7c is stretched along the cloth body. It can be fed into the sewing machine in a stretched state, and the pressure can be adjusted by loosening the nut n and sliding the retaining rings 6g and 6h appropriately within the slits S of the angles 6e and 6f. Please make sure to do so. The height of the guide rod 5c is adjusted as appropriate in relation to the height position of the sewing machine.

According to the device of the present invention, it is possible to feed the banding rubber into the sewing machine while automatically pulling it under the desired conditions, and therefore it can be simply and easily sewn to body fabrics, etc., contributing to improved productivity. It is extremely large.

Note that the polytetrafluoroethylene resin 3 of a constant thickness stuck on the fixed roller 2 is excellent in that it can impart appropriate cushioning properties and sliding friction properties to the banded rubber body under pressure, and can be used at any time. It is used by changing the pasting.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of the entire device, FIG. 2 is a partial perspective view of the banding rubber, and FIGS. 3A and 3B are explanatory views of the operation. 1...Frame body, 2...Fixed roller, 3
...Teflon sheet, 4d...Press roller, 6
c, 6d...Spring, 7...Rubber with band.

Claims (1)

[Claims for Utility Model Registration] (1) A fixed roller is installed between the front legs of a frame body composed of four legs and a horizontal angle, and an arm rod having a presser roller that freely rotates with respect to the fixed roller is installed horizontally. A banding rubber is attached to an angle so as to be swingable, and the banding rubber is pulled out while being pressed with a constant pressure between a fixed roller and a presser roller, and guided to a sewing machine device. Tension adjustment device. (2) The banding rubber tension adjustment device according to claim 1 of the utility model registration claim, characterized in that a tetrafluoroethylene resin sheet is adhered to the upper surface of the fixed roller.