JPH022287Y2 - - Google Patents

Description

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

(Prior art) Elastic bands are sewn to the belts of sports and leisure pants, and to the side hems of jumpers. First, rubber pieces of a certain length are sewn at appropriate intervals on the front and back ends of the lower half, and then the upper half is folded over and sewn to the body while pulling the pieces in the length direction. Conventionally, there is no device for holding this in a tensioned state, and sewing is carried out by hand while being pulled at the sewing machine position.

(The problem that the invention attempts to solve) By the way, this (constantly pulling by hand)
It is very tiring, 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.

(Means for Solving the Problems) In order to achieve the above object, the present invention has the following configuration. That is, a fixed roller of an appropriate length and width is provided at the upper end of a frame erected at a constant height, and a presser roller that rotates freely relative to the fixed roller is pressed against the fixed roller with an appropriate pressing force by the traction action of a spring. It is characterized in that the banding rubber is passed between both rollers and guided to the sewing machine device.

(Example) FIG. 1 is a perspective view of the entire device. 1 is front leg 1
It is a frame body erected at a constant height by four legs a, 1b, rear legs 1c, 1d, and horizontal angles 1e, 1f, and a fixed roller 2 of a constant width is installed on the upper part of the front legs 1a, 1b, and A tetrafluoroethylene resin sheet 3 having a wall thickness of approximately 0.1 to 0.2 mm is adhered to the upper surface of the roller.

4 is a presser roller means and horizontal angle 1
For e and 1f, arm rods 4a and 4b of a certain length are connected to pin shafts 4.
At the same time, a presser roller 4d having the same width as the fixed roller 2 is rotatably attached to the arm rods 4a, 4b at a position corresponding to the fixed roller 2 via a pin shaft 4e. Installed. 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 to fix the rod 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). The piece 7c is sewn only at its front and rear ends.

FIGS. 3A and 3B are explanatory diagrams of the operation of guiding the banding rubber body 7 to the sewing machine using the device, and first, as shown in A, the arm rods 4a, 4
Lift guide rod 4f by lifting b slightly upwards.
It is guided from above to below the presser roller 4d, and the arm rods 4a, 4b are lowered, thereby creating a clamping state between the fixed roller 2 and the fixed roller 2 by the appropriate pressing force due to the traction action of the spring, and then the guide rod 5c. Pull it upward (Fig. B). Pass through the guide rod 5c and use a width adjustment lever (not shown) to fold the upper half 7a of the banded rubber body onto the lower half 7b, and then use the sewing machine (not shown) to fold the pants. It is designed to be sewn together with the body fabric, etc.

In the present invention, the frame is not limited to the above embodiment as long as it is used to erect the fixed roller 2 at a constant height. Further, the press roller is not limited to the above embodiment as long as it is placed under constant pressure on the fixed roller. In addition, against the traction action by the spring for the pressing action,
It is also okay to use weights.

(Effect of the invention) The device of the present invention has the above-described configuration, and since a constant pressure is maintained between both the fixed roller 2 and the presser roller 4d, the banded rubber body that has shrunk with the rubber piece 7c is The fabric can then be fed into the sewing machine while being stretched along the fabric.

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.

In addition, the polytetrafluoroethylene resin sheet 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. It can be changed and used as needed.

[Brief explanation of drawings]

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 of an appropriate length and width is provided at the upper end of a frame erected at a certain height, and a presser roller that freely rotates with respect to the fixed roller is provided with a spring applied to the fixed roller. A tension adjustment device for banding rubber, characterized in that the banding rubber is pressed with an appropriate pressure by a traction action, and is guided to a sewing machine by passing the banding rubber between both rollers. (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.