JPH0511260Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] The present invention semi-automatically connects two threads or strings (hereinafter referred to as threads) when sewing machine thread, general thread, woolen thread, etc. are spliced. It concerns instruments.

[Conventional technology]

Previously, when joining two threads together, it was a completely manual process, tying a knot using both hands and cutting off the excess ends with scissors.

[The problem that the idea attempts to solve]

Conventionally, tying threads was a completely manual process, which required labor and time, and was troublesome in tasks where tying was frequently performed, such as sewing using a sewing machine. The purpose of the present invention is to make the thread tying operation semi-automatic using a simple-structured device, thereby saving labor, time, and troublesomeness.

[Means to solve the problem]

The basic means of the present invention to achieve the above object is to make a loop by winding two threads to be tied together, and to create a loop by crossing over the end of the winding and the beginning of the winding. It is composed of a thread take-out part that projects the remaining half-wound part from inside the single-wrap ring, and a main body that fixes the thread winding part and the thread take-out part in a predetermined position and trims the end part of the knot.

The above basic means are the following two independent measures.
There are two specific measures. The thread winding part according to the first specific means has a ring-shaped plate shape, has a notch in a part of the ring through which the thread can be easily passed in the radial direction, and has a cutout for winding the thread around the outer periphery of the ring. It has a winding groove, has a collar along one side of the winding groove to guide the thread and prevent it from falling off, and the thread is clamped around the outer periphery of the collar at a position slightly away from the notch in the counterclockwise direction. It has a V-shaped groove for Further, the main body has a circular trapezoidal shape with an outer diameter approximately equal to the outer diameter of the thread winding section, and the rear surface of the thread winding section is placed on the front surface of the circular base at an angle of approximately 180 degrees clockwise from the notch. The two surfaces are fixed at a distance that allows the thread to pass through easily, and a cutter for cutting the thread is provided at the final end of the approximately 180 degree section. Further, the thread take-out part has an inclined part formed at a height such that the front surface of the thread winding part projects upwardly from the periphery of the main body at an angle of about 90 degrees clockwise from the notch toward the center thereof. , consisting of a thread stopper projection and a thread anti-slip groove provided at the upper end of the inclined portion.

Next, in the second specific means, the thread winding part is exactly the same as the thread winding part of the first concrete means,
The main body differs from the main body of the first specific means in that it has a ring-shaped plate shape, its outer diameter is approximately equal to the outer diameter of the thread-wound portion, its inner diameter is smaller than the inner diameter of the thread-wound portion, and it is located near the rear surface. The other features are the same except that there are steps and the inner diameter is further reduced. Further, the thread take-out part is completely different from the thread take-out part of the first specific means, and can be fitted into the inner diameter from the front surface of the main body, and when it is in the fitted state, the front surface is flush with the front surface of the main body. The rear surface has a stepped cylindrical shape that protrudes from the rear surface of the main body. , that is, the first
The thread pulling section of the first means is of a sliding type with a fixed inclined surface, whereas the thread pulling part of the second means is of a protruding type with a movable central shaft.

[Effect]

The thread tying action by the first specific means is tying 2
After pinning a few centimeters from the end of the overlapping book threads into the V-shaped groove of the thread winding section, hold the end of the thread between your fingertips and wrap around the winding groove on the outer periphery.
Pass the end of the winding over the top of this one roll, pass it through the notch, and insert it between the back of the thread winding section and the front of the main body.
When the end portion is further rotated halfway around, the end portion slides up the inclined surface of the thread take-out portion and protrudes from the center of the single winding ring. At this time, place the end part against the cutter and cut off the excess, then pinch the end part with your fingertips and the ring will come off the winding groove, shrinking and tying a knot.

Next, the thread tying action by the second specific means is as follows:
The first half of the action is the same as above, and in the second half, the end of the thread that has made a half-circle is pushed out from the center of the loop, and the cylindrical thread pulling part fitted in the center of the main body is pushed forward. This is done by

〔Example〕

Hereinafter, the present invention will be explained in detail with reference to the drawings.
FIG. 1 is a diagram showing an embodiment according to the first means of the present invention, in which a is a front view, b is a side view seen from below, and c is a side view as seen from below.
shows the AA cross-sectional view of a. 1 indicates the entire thread winding part, 2 is a notch, 3 is a shallow groove for winding the thread once, 4 is a collar provided along one side of the thread groove 3,
Reference numeral 5 denotes a V-shaped groove for preventing thread pinching, which is carved on the outer periphery of the collar at a position slightly away from the notch 2 in the counterclockwise direction. Reference numeral 6 denotes a main body, which has a circular trapezoidal shape with an outer diameter approximately equal to the outer diameter of the loop of the bobbin winding section 1, and has an interval 7 between its front surface and the rear surface of the bobbin winding section 1 to allow the thread to pass through easily. , the thread winding part 1 is attached to the supports 1 at multiple locations.
4 is fixed to the main body 6. Reference numeral 8 is a cutter for cutting off the excess end portion of the thread, and is fitted and fixed in a cut groove made on the outer periphery of the main body 6 at a position approximately 180 degrees clockwise from the cutout 2. Reference numeral 10 denotes a thread take-out part, and a sloping part 11 slopes upward from the periphery of the main body 6 at a position approximately 90 degrees clockwise from the notch 2 toward the center to a height that projects the front surface of the thread winding part 1. , a thread stopper protrusion 12 and an anti-slip groove 13 provided at the upper end thereof, and is fixed to the main body 6. In this embodiment, the main body 6 is held by hand in order to hold and fix the device during thread tying work, but if a magnet is embedded in the rear part of the main body 6, it can be attached to the sewing machine main body, etc. It can also be used by adsorbing and fixing it to a steel structure.

Next, a second embodiment of the present invention according to the second means will be described.
As shown in the figure. a is a front view, b is a side view seen from below, and c is a BB sectional view of a. The same parts as in FIG. 1 are given the same reference numerals. The thread winding section 1 of this embodiment has exactly the same structure as that of the first embodiment. The main body 15 of this embodiment has an annular trapezoid shape, and its outer diameter is approximately equal to the outer diameter of the thread winding portion 1.
The inner diameter is smaller than the inner diameter of the thread-wound portion 1, and is further reduced with a step near the rear surface. The rest of the structure is the same as the first embodiment. Furthermore, the thread take-out part 16 is completely different from the thread take-out part 10 of the first embodiment, and has a stepped cylindrical shape that slides in the axial direction inside the inner diameter of the main body 15, and by sliding it forward, the thread take-out part 16 is completely different from the thread take-out part 10 of the first embodiment. I can do it.

[Effect of idea]

Both the first means and the second means of the present invention can perform the thread tying operation semi-automatically, easily and quickly, and are effective in saving labor and time compared to the conventional completely manual operation. be. Moreover, since the structure is simple and can be provided at low cost, it can be easily used. Note that the first means has advantages over the second means in that it has no movable parts, is easier to operate, and is smaller and lighter.

[Brief explanation of the drawing]

FIG. 1 is a diagram showing an embodiment according to the first means of the present invention, in which a shows a front view, b shows a side view, and c shows a sectional view. FIG. 2 shows an embodiment according to the second means of the present invention, in which a shows a front view, b shows a side view, and c shows a sectional view. 1... Thread winding part, 2... Notch, 3... Winding groove, 4... Flam, 5... V-shaped groove, 6, 15... Main body, 8... Cutter, 10, 16... Thread release part ,
11... Inclined portion, 12... Thread fixing protrusion, 13...
...Non-slip groove.

Claims (1)

[Claims for Utility Model Registration] 1. It has a ring-shaped plate shape, and a part of the ring has a notch 2 through which a string can be easily passed in the radial direction,
It has a winding groove 3 on the outer periphery of the ring for winding the string once, and has a collar 4 along one side of the winding groove 3 for guiding the winding and preventing it from falling off, and a collar 4 located a little counterclockwise from the notch 2. A thread winding part 1 having a V-shaped groove 5 for clamping a thread string on the outer periphery of the collar 4 at the position.
; It has a circular trapezoidal shape with an outer diameter approximately equal to the outer diameter of the ring of the bobbin winding section 1, and the rear surface of the bobbin winding section 1 is placed on the front surface of the circular stand, and an area of about 180 degrees clockwise from the notch 2 is formed. A main body 6 fixed with an interval 7 between both sides to allow the string to pass through easily, and further provided with a cutter 8 for cutting the string at the final end of the approximately 180 degree section.
and; an inclined portion 11 formed at a height such that the front surface of the bobbin winding portion 1 projects upwardly from the periphery of the main body 6 at an angle of about 90 degrees clockwise from the notch 2 of the bobbin winding portion 1; A thread tying device characterized by comprising: a thread pulling part 10 consisting of a thread stopper projection 12 provided at the upper end of the inclined part 11 and a thread slip prevention groove 13. 2. It has a ring-shaped plate shape and has a notch 2 in the radial direction in a part of the ring through which a string can be easily passed,
It has a winding groove 3 on the outer periphery of the ring for winding the string once, and has a collar 4 along one side of the winding groove 3 for guiding the winding and preventing it from falling off, and a collar 4 located a little counterclockwise from the notch 2. A thread winding part 1 having a V-shaped groove 5 for clamping a thread string on the outer periphery of the collar 4 at the position.
It has a ring-shaped trapezoid shape, the outer diameter is approximately equal to the outer diameter of the ring of the bobbin winding part 1, the inner diameter is smaller than the inner diameter of the bobbin winding part 1, and the inner diameter is further reduced by a step near the rear surface. The rear surface of the thread winding part 1 is fixed to the front surface of the ring-shaped table at an angle of about 180 degrees clockwise from the notch 2, with an interval 7 between both sides to allow the string to pass through easily, and then the section of about 180 degrees. The main body 1 is provided with a cutter 8 for cutting the thread string at the final end of the main body 1.
5; a stepped cylindrical thread outlet portion 16 which can be fitted into the inner diameter from the front surface of the main body 15, and whose front surface coincides with the front surface of the main body 15 when fitted, and whose rear surface protrudes from the rear surface of the main body 15; A thread tying device characterized by being composed of.