JPS5913262Y2 - loom shedding device - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a warp shedding device for a loom, particularly a wide loom.

Generally, a long wire rope is used as a connecting device for interlockingly connecting the belt frame of the warp shedding device and the drive mechanism that operates the belt frame.

Therefore, in such a shedding device, when the wire rope becomes fatigued, it stretches or breaks, and both ends of the belt frame are tilted up and down, causing a defective opening.

These drawbacks were especially noticeable when the wire rope was long.

Further, as in the device described in Japanese Patent Application Laid-Open No. 51-38564, all the connecting members that operably connect the belt frame and the drive mechanism that operates the belt frame are composed of rigid members consisting of levers and links. Some have been.

In this device, everything is connected by rigid bodies such as levers and links, which increases its weight and requires extra force to drive the belt frame.

Moreover, the belt frame is under extremely high tension because it holds all the warp threads, and the large shocks occurring during its shedding movement are transmitted directly to the connections of each lever and link.

As a result, the connecting portion suffers wear and tear in a short period of time, making the opening movement itself impossible.

The purpose of the present invention is to eliminate the defects existing in the conventional technology, to prevent the wire rope from stretching or breaking, to accurately transmit the motion of the drive mechanism to the belt frame, to eliminate shedding defects, and to prevent large shedding movements during shedding motion. A loom that can absorb shock by the tension rope without transmitting it to the rigid joints, thereby avoiding wear and damage to the joints, increasing the durability of the shedding device, and enabling stable shedding motion. An object of the present invention is to provide a shedding device.

An embodiment embodying the present invention will be described below with reference to the drawings. 1 is four belt frames of a loom, 2 is a plurality of tension ropes whose upper ends are attached to the lower ends of each belt frame 1 via hooks 3. It extends straight downward.

The lengths of these ropes 2 are the same.

Reference numeral 4 denotes four guide rollers provided below each belt frame 1, and the lower ends of each of the above-mentioned tension ropes 2 are hung from the right side to the bottom of each guide roller.

Each guide roller 4 has a pair of front and rear guide rollers (a third
It is rotatably mounted on a support shaft 6 provided at the upper part between the support frames 5 (a pair of left and right in the figure), and both have the same height.

Reference numeral 7 denotes a guide member for guiding a pair of left and right connecting members 13, which will be described later, provided between two guide rollers 4 adjacent to each other in the left and right direction, as shown in FIG. It is located at the lower part between the support frames 5.

Reference numeral 8 denotes a bracket for attaching each guide member 7 to the support frame 5, and a support plate 9 is fixed to the lower end of each bracket.

Reference numeral 10 denotes a pair of upper and lower guide frames attached to each support plate 9 so as to constitute each guide member 7, and the guide frames 10 are vertically spaced a little apart from each other with a spacer 11 in between.

Reference numeral 12 denotes a large number of rectangular guide passages formed between both guide frames 10, each of which is formed by cutting out the mutually opposing upper and lower surfaces of each guide frame 10 so as to extend in the left-right direction. Ru.

The longitudinal positions of four of the guide passages 12 correspond to the longitudinal positions of each of the four guide rollers 4 arranged in the longitudinal direction.

Reference numeral 13 denotes the pair of left and right guide members 7 as shown in FIG.
These connecting members are inserted into the respective guide passages 12 so as to span between them, and each has a square pipe shape and is capable of horizontally reciprocating sliding in the left and right direction.

Reference numeral 14 denotes a locking device for locking the lower ends of each of the four pulling ropes 2 to the upper surface of each connecting member 13, and each of the locking devices includes a guide roller for hanging two pulling ropes on the connecting member 13. It is located to the left of 4.

Reference numeral 15 designates a connecting protrusion projecting from the connecting member 13, as shown in FIG.

The locking device 14 consists of a connecting fitting 16 and a bolt portion 17 integrated therewith, and the bolt portion 17 is inserted into the connecting projection 15 so as to be locked on both left and right sides of the connecting projection 15. Two nuts 18 are screwed onto the bolt portion 17.

Further, the connecting fittings 16 are connected by caulking the lower ends of each of the above-mentioned tension ropes 2 inserted from the respective right ends.

Therefore, when the connecting member 13 moves to the left in the state shown in FIG. 2, the four belt frames 1 are moved down via the plurality of tension ropes 2.

As shown in FIG. 2, reference numeral 21 indicates an operating lever that constitutes a part of the drive mechanism for operating the belt frame 1. A portion is supported by a shaft 22 so as to be swingable in the left-right direction.

Reference numeral 23 denotes a connecting fitting attached to the lower end of each operating lever 21, and its left and right length can be adjusted.

A rope 24 connects the right end of the connecting fitting 23 and the left end of the connecting member 13, and the right end folded in half is hung on a roller 25 attached to the left end of the connecting member 13, and the left end is connected to the connecting fitting 23. It is hung on the rightmost roller.

Next, the effects of the opening device configured as described above will be explained.

In order to perform an opening operation using this opening device, each operating lever 21 may be moved backward to the left or right by a drive mechanism, as in the conventional case.

When the operating lever 21 is moved left and right, each connecting member 13 is moved left and right along the pair of guide members 7 via each rope 24 .

When the connecting member 13 is moved left and right, the tension rope 2 whose lower end is attached to it is moved up and down via each guide roller 4, so that each belt frame 1 is also moved up and down to perform an opening movement. .

In this case, in the above embodiment, the rope 2 is used as a connecting device to connect each operating lever 21 and the belt frame 1.
, 24, the length of the rope can be shortened compared to a conventional example in which the entire connecting device is made up of only a rope.

Therefore, stretching and breaking of the ropes 2 and 24 due to fatigue can be reduced, and the movement of the operating lever 21 can be accurately transmitted to each belt frame 1.

Moreover, if the elongation due to fatigue of the four tension ropes 2 that pull up each belt frame 1 can be reduced in this way, the difference in elongation between these ropes 2 can also be reduced, and therefore each belt frame It is possible to reliably prevent both ends of 1 from being tilted up and down, thereby eliminating opening defects.

In addition, the present invention connects the belt frame 1 and the actuating lever 21 of the drive mechanism by a vertical tension rope 2 via a rigid connecting member 13 extending slidably in the horizontal direction and a guide roller 4. Therefore, the weight of the connecting members can be reduced compared to a device in which all the connecting members are made up of rigid members including levers and links.

Moreover, since the large impact during the opening movement is absorbed by the tension rope 2, the large impact is not applied to the rigid connecting part, thereby avoiding wear and damage to the connecting part.

In particular, in the embodiment described above, the lengths of the four tension ropes 2 attached to the lower end of each belt frame 1 are made the same, so that the difference in elongation between these ropes 2 can be further reduced. This makes it easy to maintain the horizontality of the belt frame 1.

In the above embodiment, when adjusting the length of each tension rope 2, the bolt portion 17 of the connecting fitting 16 is
Loosen one of the two nuts 18 screwed together and then tighten the other.

When the nut 18 on the right side is loosened and the nut 18 on the left side is tightened, the rope 2 is pulled downward, so its length becomes shorter.
Conversely, loosening the nut 18 on the left side and tightening the nut 18 on the right side increases the length of the rope 2.

The length of the rope 24 between the actuating lever 21 and the connecting member 13 can be adjusted by a connecting fitting 23 attached to the actuating lever 21.

Note that the connecting member 13 can of course be a rod instead of a pipe.

As described in detail above, the present invention has a rigid connecting member extending below each belt frame in the longitudinal direction of the belt frame, each supported by a guide member so as to be slidable in the longitudinal direction, and one end of which is connected to the belt frame. The other end of the hanging rope is attached to the connecting member via a guide roller, and the end of the connecting member is connected to the actuating lever, thereby transmitting the movement of the actuating lever to the belt frame. This prevents the rope from stretching or breaking, and accurately transmits the movement of the actuating lever that is swung by the drive mechanism to the belt frame, thereby preventing the occurrence of opening defects. It can be absorbed by the tension rope without being transmitted to the connecting part, which has the excellent effect of avoiding wear and damage to the connecting part, increasing the durability of the opening device, and making it possible to perform stable opening movement.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of the road body of a shedding device for a loom embodying the present invention, Fig. 2 is an enlarged front view showing the main parts thereof, and Fig. 3 is a side view showing the supporting state of the guide roller and guide member. , FIG. 4 is an enlarged front view of the anchoring device for anchoring the tension rope to the connecting member. Belt frame...1, tension rope block...
...2, Guide roller...4, Connecting member...
...13, Actuation lever ...21°

Claims (1)

[Claims for Utility Model Registration] 1. A drive mechanism is provided on the side of a plurality of belt frames 1, and the belt frames 1 are moved up and down by actuation of the same number of actuation levers 21 as the belt frames 1 provided in the drive mechanism. In the shedding device for shedding the warp yarns, a connecting member 13 made of a rigid body extends in the longitudinal direction of the belt frame 1 below each of the belt frames 1, and a guide member 7 is provided so as to be slidable in the longitudinal direction. support each,
One end is attached to the lower end of the belt frame 1, the other end of the hanging tension rope 2 is attached to the connecting member 13 via the guide roller 4, and the end of the connecting member 13 is connected to the operating lever 21. A loom shedding device featuring: 2. A shedding device for a loom according to Claim 1 of the Utility Model Registration Claim, characterized in that each tension rope has the same length and each lower end is attached to a connecting member via a locking device. 3 In claim 2 of the utility model registration claim, each of the locking devices is provided on a connecting projection protruding from the connecting member, one end of which is inserted into each connecting projection so that the position of the connecting member can be adjusted in the longitudinal direction, and the other A shedding device for a loom, characterized in that the shedding device for a loom is constituted by a connecting fitting having a lower end of a tension rope caulked at the end thereof. 4. A shedding device for a loom, as set forth in claim 1 of the utility model registration, characterized in that the horizontal portion of the connecting device is constituted by a connecting member and a rope interposed between the connecting member and the operating lever. 5. A shedding device for a loom, characterized in that the connecting member is a square pipe according to claim 1 of the utility model registration claim.