JPH0220226Y2 - - Google Patents

Description

[Detailed description of the invention] The invention is based on the idea that the tension adjustment chamber in which the mega glass handle is housed is bored from the side surface of the main body of the shuttle on the reed side. The present invention relates to a shuttle that can reliably avoid the risk of

Tension adjustment devices that use a mega glass handle with a mega glass handle to apply tension to the weft yarn being let out from a shuttle are often used. A long hole-shaped concave groove d is bored along the longitudinal direction in the side surface c that faces the side surface b on the a side, and a slider e is provided above and below the inside of the concave groove d to adjust the tension of the weft yarn. At a position near the tip h of the shuttle main body g, which has a guide groove f into which it can fit and slide, a tension adjustment chamber i is opened from a side surface c opposite to the side surface on the reed side.
, the side surface d on the reed side is opened by a minimum area that does not hinder the installation of the mega glass handle j, and the mega glass handle j is rotatably stored in the tension adjustment chamber i formed in this way. It is configured to apply tension to the weft yarn k snaking between the mega glass and the yarn guide pin. Since the thickness L1 of the mega glass handle j is usually slightly larger than the width L2 of the groove d, in the tension adjustment chamber i portion, the side walls l, l, etc. of the upper and lower guide grooves f, f are about half of each other. It will be cut out at the height of. The guide grooves f, f
The groove depth L3 is determined by the height L4 of the shuttle main body g and the size of the thread guiding ring member m of the slider e, and is usually set to about 2 to 3 mm in conventional shuttles. However, this groove depth was the minimum necessary. In other words, when the shuttle is temporarily stopped during weaving and then inserted again, or when the shuttle box moves up and down, the slack in the weft threads may be greatly affected by the impact during the shuttle throwing motion, etc. This was the minimum necessary to prevent as much as possible an accident in which the slack portion becomes unstable and gets stuck in the guide groove f and gets caught between the groove bottom n and the slider e. The reason why the groove depth, which is set to the minimum required minimum, becomes extremely shallow, approximately half as described above, is because the weft k is caught between the groove bottom n and the slider e and is cut. Otherwise, the frequency of accidents resulting in damage will be abnormally increased. As a result, it requires considerable skill and a great deal of effort to repair the damaged part of the woven fabric every time the weft is cut.
During this time, the loom has to be stopped, which not only causes a significant drop in weaving efficiency, but also causes deterioration in the quality of the woven fabric, such as the formation of weaving steps.

In addition, in the conventional shuttle, as described above, the tension adjustment chamber i is bored from the side surface c opposite to the reed side side surface of the shuttle main body g, and the reed side side surface d is prevented from breaking as much as possible. This was commonly done for the following reasons. Firstly, since the main body of the shuttle receives a large impact during picking, the purpose was to increase the durability of the shuttle without damaging the side wall of the main body as much as possible. Secondly, as shown in Figure 3a, the shuttle performs reciprocating motion while being guided by (contacting) the reed a whose side surface d on the reed side is slightly inclined toward the rear of the loom. However, in order to stabilize the movement, it is necessary to avoid providing an opening in the side surface d on the reed side that contacts the reed a as much as possible, in other words, leave as much of the flesh of the side surface d as possible so that it is nearly flat. It was preferable to do so, and it was also advantageous to make the reed side of the shuttle as heavy as possible. However, drilling the tension adjustment chamber i from the side surface c opposite to the side surface on the reed side,
Inevitably, as described above, the groove depth of the guide groove f becomes extremely shallow, resulting in a decrease in weaving efficiency and a deterioration in the quality of the woven fabric.

The inventor of the present invention has continued to research day and night to eliminate the damage caused by such reductions in weaving efficiency and quality of woven fabric in shuttles equipped with sliders. It is used for weaving so-called narrow-width fabrics, which have a relatively narrow width, so the shock that the shuttle receives during picking is not very large, and the flying speed of the shuttle is also relatively low. We focused on the fact that the metal lid of the shuttle tongs or shuttle for foil yarn is deviated toward the reed side of the shuttle, and that the reed side of the shuttle is considerably heavier. Drill a tension adjustment chamber from the
In other words, even if the part o surrounded by the dashed-dot line in FIG. As a result of further research, we have arrived at the present invention, and one embodiment of the invention will be described below with reference to the drawings.

In FIGS. 1 and 2, the shuttle 1 of the present invention is
A guide groove 3 (equal depth over the entire length) into which the slider 2 can fit and slide is carved into one side surface S1. A tension adjustment chamber 7 in which a handle 6 is housed is bored.

The main body 5 of the shuttle has a boat-like shape, and has a storage chamber 9 recessed in the center of its surface for accommodating a woodwind, and has an elongated groove 10 along its longitudinal direction in one side S1. The concave groove 10
Three guide grooves 3, 3, 3 into which the slider 2 can fit and slide are cut on the upper and lower sides of the inner side. The slider 2 is attached to the shuttle main body 5 by means of an elastic cord 12.
The weft 1 is always elastically stretched in the direction of the end of the slider 2 and is led out through the guide hole 13 provided in the slider 2.
5. Keep the tension constant.

The tension adjustment chamber 7 is located at the tip 5a of the shuttle main body 5.
At a close position, that is, a position immediately before the storage chamber 9, the shaft is drilled from the other side surface S2 of the shuttle main body 5 to the vicinity of the inner groove wall 3a1 of the guide groove 3a located at the innermost side so as not to break the inner groove wall 3a1. It is formed as an elongated elliptical space along the longitudinal direction of the other side surface portion S2. In the tension adjustment chamber 7, the L-shaped mega glass handle 6 having a mega glass 16 is provided.
is rotatably supported at its corner C by a pivot pin 17, its base end 19 is pulled toward the support pin 21 under the tension of an elastic string 20, and its distal end 22 is It is stopped by a stop pin 23 made of metal, wood, resin, etc. to prevent the mega glass handle 6 from jumping out of the tension adjustment chamber 7. The mega glass handle 6 holds the weft 1 meandering between the mega glass 16 and the implanted yarn guide pin 25.
Apply a constant tension to 5.

As described above, the shuttle 1 of the present invention has the conventional mega glass handle 6 as a result of drilling the tension adjustment chamber 7 in which the mega glass handle 6 is housed from the other side surface S2 of the shuttle main body 5, that is, from the side surface on the reed side. Unlike the shuttle, the groove depth of the upper and lower guide grooves 3, 3, etc. is not shallow at all in the tension adjustment chamber 7 portion, as is clear from comparing Fig. 2 a, b with Fig. 3 a, b. Therefore, the groove bottom 27 of the guide groove 11
The weft thread 1 is inserted between the slider 2 that fits and slides thereon.
It is possible to reliably avoid the possibility that the material 5 will be caught, cut, or damaged, thereby improving the quality of the woven fabric and providing an excellent effect that can improve the efficiency of weaving. In addition, even if the tension adjustment chamber is drilled from the side of the shuttle main body on the reed side,
(In other words, even if the part o surrounded by the dashed line in FIG. Therefore, since it is already quite heavy, there is little risk of reducing the strength of the shuttle or deteriorating stability during reciprocating motion of the shuttle.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing one embodiment of the present invention;
Figure a is its sectional view, Figure 2 b is its side view, Figure 3
Figure a is a cross-sectional view illustrating a conventional shuttle;
FIG. b is a side view thereof, and FIG. 4 is a perspective view illustrating a conventional shuttle. 1...Shuttle, 2...Slider, 3...Guide groove, 5...Shuttle main body, 5a...Tip, 6...
...Mega glass handle, 7...Tension adjustment chamber, 16...
...Megarasu, S1...one side part, S2...other side part.

Claims (1)

[Scope of utility model registration request] A tension adjustment chamber 7 is provided adjacent to the guide groove 3 at a position near the tip of the shuttle main body 5 in which a guide groove 3 into which the slider 2 can fit and slide is carved in one side S1, and A tension adjustment device configured to rotatably house a megaglass handle 6 having a megaglass 16 in the tension adjustment chamber 7, and apply tension to the weft by the megaglass handle 6 and the slider 2. In a shuttle comprising: the guide groove 3
are carved at equal depth along its entire length,
Further, the tension adjustment chamber 7 is connected from the other side surface S2 of the shuttle main body 5 to the inner groove wall 3a of the guide groove 3a located on the indoor side so as not to break the inner groove wall 3a1.
1. A shuttle characterized by being drilled in the vicinity of 1.