JPS6113581Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention is a shuttle for a loom, in particular, a thread guiding groove extending from one end of the thread opening side toward the other end is provided on one surface of the shuttle body facing the inner wall of the shuttle box, and the thread is threaded through the thread guiding groove. The present invention relates to an improvement in a shuttle which has a plurality of pairs of guide pins in a yarn guide groove for regulating the position at which the yarn is removed, and which has a second or less number of yarn ports formed by the plurality of pairs of guide pins.

When weaving is carried out using a conventional shuttle as described above, when the shuttle flies through the warp opening with the thread end at the tip and is then stored in the shuttle box, considerable tension is applied to the weft threads. , the weft thread runs in the thread guiding groove as expected without loosening. However, when the shuttle is then driven out from the shuttle box in the opposite direction, the weft threads are temporarily relaxed, and as a result, some of the weft threads come out of the thread guiding groove and become stuck between the shuttle and the inner wall of the shuttle box. You may be caught in between. If the shuttle is launched under such conditions, the weft threads will usually be cut due to friction. Furthermore, even if the fibers are not cut, local untwisting or flattening (in the case of synthetic monofilament fibers) occurs, resulting in an unavoidable deterioration in the quality of the product.

The present invention aims to eliminate the drawbacks of the conventional shuttlecock as described above, and includes a shielding plate made of a strip-shaped thin plate capable of shielding a part of the yarn guide groove other than the yarn opening area formed by the pair of guide pins. It is characterized by:

The present invention will be described with reference to the drawings with reference to the drawings.
It is. A thread guide groove 2 is provided on one side of the shuttle body facing the inner wall of the shuttle box, and extends from the side end of the thread opening 4 provided near the tip of the shuttle toward the other end of the shuttle. The bottom wall portion 21 of the thread guide groove 2 has a slightly larger width, as shown in FIG. 2 showing the -cut end surface of FIG.
A shielding plate 1 is provided which fits into narrow grooves 3a and 3b provided in the upper wall portion 21b and covers the thread guide groove 2. However, around the guide pin 5 at the clue 4,
The size and arrangement are such that the portion forming the second thread opening 6 between the guide pins 7 and 8 is not covered. Furthermore, the yarn guide groove on the left side of the guide pin 8 is not covered, because this is a part where the weft does not run. Each guide pin 5, 7, 8 has a narrow groove 3
The guide pins 5 and 7 are driven from the top of the shuttle 10 at positions a and 3b.
It also serves to prevent the metal from sliding into the narrow grooves 3a, 3b.

Parts not shown in the drawings of this shuttle,
For example, the guide mechanism through which the weft thread passes until it is pulled out to the thread port 4 does not require any special guide mechanism.

When using the above-mentioned shuttle, the weft yarn pulled out from the yarn opening 4 passes through the tunnel-shaped yarn guiding groove 2 covered with the shielding plate 1, and then is separated from the yarn guiding groove 2 at the second yarn opening 6. In this way, as shown in FIG.
Even if the weft yarn is relaxed, as long as it is outside the yarn guide groove 2.
Since the weft threads do not protrude from the shaft, the weft threads are not caught between the shuttle and the inner wall of the shuttle box, and accidents such as thread breakage, untwisting, deformation, etc. due to friction are completely avoided.

FIG. 4 is a front view showing another embodiment of the present invention. The difference between this example and the example shown in FIG. 1 is that
A third thread opening 12 is provided further to the left of the second thread opening 6 in the example of FIG. 1 (for ease of understanding, parts common to those in FIG. 1 are given the same reference numerals). If multiple threads are provided as in this example, by using them properly, even when used on various looms with different box front dimensions, the condition described earlier with reference to Fig. 3 can be met. The condition ``as long as it is outside the box front'' can be satisfied.

As the material for the shielding plate in the shuttle of the present invention, any material can be used as long as it can fulfill the function of the shielding plate as described above, such as metal plate, synthetic resin plate, vulcanized fiber, and wooden board. .

The shuttle of the present invention has the above-mentioned features due to the installation of the shielding plate, and since the shielding plate is fitted into the narrow groove on the side wall of the yarn guiding groove, its surface is invaginated from the shuttle surface. (In other words, it also has an open structure groove with the bottom of the shield plate surface), so if it is sufficient to use only the open structure thread guiding groove and the first thread opening, such usage is possible. It has the advantage of being.

The shuttle of the present invention can be used to supply weft yarns of various materials, but the feature based on the installation of a shielding plate is particularly useful for fine denier yarns that tend to loosen in the shuttle box and cause the weft grooves to slip out. When used for supplying weft yarns made of synthetic resin filaments, the use of the shuttle of the present invention makes it possible to significantly improve the quality of textiles. In the shuttle of the present invention, by providing a pair of guide pins, the thread passing through the thread opening between the pair of guide pins is
Whenever the shuttle flies back and forth, it comes into contact with one of the guide pins, reducing the resistance when the thread is pulled out.

In addition, the shuttle of the present invention can be used properly by providing a plurality of clues starting from the second one, and even when used on machines with different box front dimensions, any one of the clues can be used for the box front. Since it is located on the outside, when the yarn is pulled out from the yarn opening, as long as the yarn opening is outside the box front, the weft will protrude from the yarn guiding groove even if it is relaxed, and will be caught between the shuttle and the inner wall of the shuttle box, causing the yarn to become loose. Accidents such as cutting, untwisting, deformation, etc. can be prevented.

[Brief explanation of the drawing]

Figure 1 is a front view showing one embodiment of the present invention;
The figure is a cut-away end view of the part shown in Figure 1.
It is an explanatory view of the usage state of the shuttle of the figure. FIG. 4 is a front view showing another embodiment of the present invention. 1, 15... Shielding plate, 2... Thread guide groove, 3... Thin groove, 4, 6, 12... Thread opening, 5, 7, 8, 13,
14... Guide pin, 9... Shuttle box, 10... Shuttle, 11... Box front.

Claims (1)

[Scope of utility model registration request] The front surface of the main body has a thread guide groove that extends from the birthing end of the thread opening provided near the tip of the shuttle to the other end of the shuttle, and a pair of guide pins that regulate the position at which the thread is removed from the thread guide groove are installed in the thread guide groove. In a shuttle provided at one or more locations of the yarn guide pins, with a second or lower yarn opening located between the guide pins, the yarn guide groove is provided between the final yarn opening and the yarn opening provided near the tip of the shuttle, and A shuttle characterized by being provided with a shielding plate capable of shielding parts other than the periphery of the guide pin.