JPS6220460Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to a warp tensioning device in a toy loom.

Previously, the present applicant proposed a toy loom for knitting various patterns as Utility Model Publication No. 60-23331. The warp threads were inserted one by one through a heddle body made up of a large number of heddle plates arranged in a weave width and having guide protrusions to tension the warp threads, and the warp threads were configured to move up and down in a predetermined order by rotating the heddle body. It was hot.

However, the warp threads caught on the guide protrusions of the heddle plate,
The tension of the warp threads that are not locked will not be constant, and when the warp threads that are locked are not locked, the tension will decrease, and the warp threads cannot be tensioned uniformly, resulting in uneven weaving and difficulty in weaving due to sagging. There were some problems, such as:

In view of the above-mentioned problems, this invention provides a warp tensioning device for a toy loom which eliminates the above-mentioned drawbacks by having a function of uniformly tensioning the warp threads in advance at the beginning of weaving.

That is, in the present invention, a pair of frames are connected to a shaft on which claw pieces for locking warp threads are arranged to form a machine base, and a heald body having a plurality of heald plates connected to each other is horizontally attached to the frame. A projection is provided on the side surface of the heald plate to guide the warp threads, and the warp threads locked to the claws of the threading shaft are stretched through the heddle body, and the heald plate rotates. In a toy loom configured to move up and down in a predetermined order, the threading shaft is provided with a ratchet mechanism for tensioning the warp threads, and dial plates disposed on both sides of the heddle body have a periphery of the heald plate. It is characterized in that a through hole is bored at an outer position, a through bolt is inserted into the through hole, and the warp threads are tensioned by the through bolt.

An embodiment of the warp tensioning device for a toy loom according to this invention will be described with reference to the drawings.

Figure 1 shows a toy loom based on this invention.
A rectangular machine frame 3 is constructed by inserting the frame and positioning the frame.

A large number of claw pieces 4 are arranged in rows on the threading shafts 2, 2, and one continuous thread that becomes the warp thread 5 is alternately secured to these claw pieces 4, and finally the warp threads 5 are arranged vertically between the frames 1, 1. Make it parallel to the states. A heald body 6 is rotatably supported by a rotating shaft 7 in parallel with the threading shaft 2 near the diagonally above the threading shaft 2 at the front end. This heddle body 6 is assembled by arranging a plurality of heald plates 8 which are provided with guide protrusions 16 on one side. It is inserted so as to be locked to the guide protrusion 16.

More specifically, as shown in FIG. 2, the heald body 6 through which the warp threads 5 are inserted is composed of a plurality of heald plates 8 and a dial plate 1 that holds the heald plates 8 from both sides.
0, and a rotating shaft 7 that is inserted into the shaft holes of the heald plate 8 and the dial plate 10 and holds both in a single cylindrical shape.
It is composed of Furthermore, the boss 1 of the heald plate 8
1 and the boss 12 of the dial plate 10 have eight passages provided parallel to the rotating shaft 7 and facing each side 13 of the heald plate 8 (in this embodiment, eight sides because the heald plate is octagonal). A hole 14 is opened. The two through bolts 15 are inserted into the through holes 14 to fix the heald plate 8 in a predetermined position. Furthermore, an arcuate guide protrusion 16 is provided on the side surface of the heald plate 8 on the side of the protruding boss 11.

A large number of the heald plates 8 are lined up on the machine frame 3 and inserted through the rotating shaft 7, held in close contact with each other and held between dial plates 10, 10 from both sides. Insert and fix. When assembled in this manner, a gap, ie, a groove 9, is formed between each heald plate 8 by the boss 11 and the guide protrusion 16.

To tension the warp threads 5, first, one end of the thread that will become the warp threads 5 is tied to the claw piece 4 at the end provided on the front threading shaft 2. As an example of this locking, for example, the ends of the warp threads 5 are tied to the claw piece 4 at the front left end, and the ends of the warp threads 5 are tied to the claw piece 4 at the rear left end via the heald body 6, and then the threads are folded back and reattached to the heald body. 6 and is locked to the second claw piece 4 at the front. In this way, the warp yarns 5 are sequentially locked to each of the front and rear claw pieces 4, and the yarn ends are finally tied to the last rear claw piece 4.

The warp threads 5 thus formed can be tensioned or relaxed by the following adjusting device.

That is, in the adjusting device shown in FIG.
are fitted, and a ratchet wheel 18 integrally provided with the knob 17 is disposed inside the frame 1. This ratchet wheel 18 has a stopper 19 that prevents the warp threads 5 from loosening in the tension direction, and a spring 20 that is installed in the knob 17.
The outward urging force by the stopper 19 is constantly engaged with the stopper 19 due to its own weight. And spring 20
1 urges the knob 17 outward, and when the knob 17 is pushed inward and the stopper 19 meshed with the ratchet wheel 18 is removed, the knob 17 becomes free to rotate. Note that the stopper 19 of the protrusion 21 is connected to the ratchet wheel 18.
This prevents the stopper 19 from falling inward when it comes off. Therefore, the warp threads 5, which have been tensioned by the adjusting device, can be locked in the same state (see FIG. 3A').

This tensioning device can also be implemented by an adjusting device B shown in FIG. 3B. In the figure, a large number of radial protrusions 23 are planted at regular intervals on the inner end of the knob 17 in the circumferential direction thereof. On the inner surface of the frame 1 into which the knob 17 is loosely fitted, a locking pawl 24 is protruded at a position opposite the projection 23 so as to be able to be engaged with and detached from the projection, and inside the knob 17, Spring 25 is inserted. In this case as well, the protrusion 23 of the knob 17 is always locked by the locking pawl 24 to lock the tension of the warp threads 5, but by pressing the knob 17 inward, the lock is released and the knob 17 Tension can be given to the warp threads 5 by turning.

At this time, the warp threads 5 are inserted into the grooves 9 of the heald body 6, and are arranged with a vertical difference between them, riding on the upper surface of the boss 11 or the upper surface of the guide projection 16. In such an arrangement of the warp threads 5, even if tension is applied to the warp threads 5, when the warp threads 5 resting on the guide protrusion 16 move onto the boss 11, they will become relaxed and an average tension will not be obtained. .

Therefore, in this invention, as shown in FIG. 1, the through bolt 15 is inserted into a through hole 25 formed in the left and right dial plates 10, 10. This through bolt 15 is fixed to one dial plate 10 by having a screw 15' carved at its tip, and a knob 17 is formed at the other end.
It is inserted in such a way that it does not slip out inward from the other dial plate 10. Further, the position of the through bolt 15 when inserted into the through hole 25 is located on the outside of the heald plate 8.

When the warp threads 5 are sequentially passed through the above-described procedure onto the through bolts 15 set as described above and locked alternately with the pawls 4 of the front and rear threading shafts 2, the warp thread drop in the heald body 6 disappears and the threading shafts at the front and rear ends. The length of each warp thread 5 between 2 and 2 is constant, and when the knob 17 is turned to tension the warp threads 5, the warp threads 5 press the through bolt 15, and the warp threads 5 can be tensioned evenly. When weaving, the warp threads 5 can be adjusted to an average tension by removing the through bolts 15 and dropping the warp threads 5 into the grooves 9 of the heddle body 6.

This device is to insert and remove through-bolts into the through-holes of dial plates located on both sides of the heald plate, and to hang each warp thread on the through-bolts and apply tension to it.
All warp threads can be easily tensioned with equal tension, making weaving easy and producing a strong fabric.

[Brief explanation of drawings]

The drawings show an embodiment of this invention; FIG. 1 is an overall perspective view, FIG. 2 is an exploded perspective view showing a heald body, and FIG. 3 is a warp adjustment device according to each embodiment. 1...Frame, 5...Warp, 6...Heddle body,
8... Heald plate, 15... Through bolt, 16... Guide projection.

Claims (1)

[Scope of utility model registration request] A machine base is formed by connecting a pair of frames to a shaft provided with rows of claws for locking warp threads, and a heald body having a plurality of heald plates arranged in series is horizontally suspended on the frames, and the heald A protrusion is provided on the side surface of the plate to guide the warp threads, and the warp threads locked to the claws of the threading shaft are stretched through the heddle body and are threaded in a predetermined order by rotating the heald plate. In the toy loom configured to move up and down, the threading shaft is equipped with a ratchet mechanism for tensioning the warp threads, and the dial plates disposed on both sides of the heddle body have dials located outside the periphery of the heald plate. Drill a through hole,
A toy loom equipped with a warp tensioning device, characterized in that a through-bolt is freely inserted into the through hole, and the warp threads can be tensioned by the through-bolt.