JP6798701B2 - Rope for tons - Google Patents

Description

The present invention relates to a tongue rope used when winding a wire rod on a wire rod winding drum.

The wire drawn by the wire drawing machine is wound around the drum. At this time, the tip of the wire is wound around the drum using a tongue. A chuck is mounted on the other side of the tongue, and the chuck holds the tip of the wire rod. A hook is attached to one side of the tongue, and the hook is attached to the drum. The chuck and hook are connected by a chain.

The user hooks the hook of the tons into the groove formed in the drum, inserts the tip of the wire into the chuck, and fixes it. By the way, since the metal chain is heavy, it is difficult to handle the tons and the workability of the user is poor. Also, if the chain breaks, the chain may jump and damage the surrounding objects. Therefore, instead of the chain, there is a rope as described in Patent Document 1 or a string as described in Patent Document 2. By using a rope made of fiber or the like in this way, the tons are made lighter, the tons are easier to handle, and the user can easily perform the work.

Japanese Unexamined Patent Publication No. 2-142614 Jitsukaisho 56-65709

Since the tongue is heavily loaded, the rope may break during use. Loops are formed on both sides of the rope to attach the hook or chuck to the rope. This loop may be overloaded and the loop may unravel. Therefore, in view of the above, an object of the present invention is to provide a rope for tons that is difficult to cut and the loop is difficult to unravel.

The rope for tons of the present invention is a fiber rope in which a plurality of strands are twisted together, and has loops on both sides. Then, one side of the rope body and the other side of the rope body are folded back and woven into the rope body to form loops, respectively, and one end of the woven rope body is located closer to the other side and woven. The other end of the rope body is located closer to one side, and one side of the rope body and the other side of the rope body overlap in the central portion of the rope body.

Due to the structure of the rope as described above, the braided portion for creating the loop in the rope body has a triple structure. One side and the other side of the woven rope body are difficult to unravel.

A protective tape is wrapped around the preloaded rope body, and the central part of the rope body is tied with a string. By wrapping the protective tape around the rope body whose looseness has been stretched by preloading, the braided portion is tightened and it becomes difficult to loosen. In addition, both ends woven into the rope body do not protrude outward from the rope body. Then, the central part of the rope body is covered with a cover. This prevents damage to the rope and does not damage the drum.

According to the present invention, since the braided portion of the rope body becomes firm, it is possible to realize a rope in which the loop is difficult to unravel and is difficult to break.

The figure which shows the state which attached the tongue using the rope of this invention to a drum Diagram showing a rope folded on one side to create a loop Diagram showing a rope woven on one side of the rope body Diagram showing a rope with loops on both sides Diagram showing the rope tied in the center of the rope body Diagram showing a rope wrapped with protective tape Diagram showing a covered rope

A tongue using the rope of the present invention is shown in FIG. The tongue 1 is used for a wire rod winding drum 2 for winding a wire rod drawn by a wire drawing machine, and has a chuck 3 for holding a start end of the wire rod W and a hook 4 attached to the drum 2. The chuck 3 and the hook 4 are connected by the rope 5. Loops 6 are formed on both sides of the rope 5, a chuck 3 is attached to the loop 6 on one side, and a hook 4 is attached to the loop 6 on the other side.

The tongue 1 is mounted in a groove 7 formed on the outer periphery of the drum 2. The hook 4 includes a support 10 mounted in the groove 7 of the drum 2, a fitting 11 to which the rope 5 is mounted, and a lever 12 for switching the tongue 1 between a tension state at the time of winding and a relaxed state at the time of mounting. Have. The support 10 is rotatably supported by a horizontal shaft 13 provided in the groove 7 of the drum 2. The lever 12 is rotatably attached to the support 10 via the first shaft 14, and the link 16 is attached to the lever 12 via the second shaft 15. The fixture 11 is attached to the link 16 via the third shaft 17. The pin 18 is inserted into the loop 6 on the other side of the rope 5, and the fixture 11 is attached to the rope 5. Then, the rotation of the lever 12 causes the attachment 11 to move via the link 16, and the rope 5 is pulled or loosened to switch the state of the tons 1.

The chuck 3 is attached to the loop 6 on one side of the rope 5 via the pin 19. The start end of the wire rod W is inserted into the insertion hole 20 of the chuck 3, and the wire rod W is held by the chuck 3 by driving the wedge 21.

As shown in FIGS. 2 to 7, the rope 5 is a fiber rope in which a plurality of strands are twisted, for example, a rope made of high-strength polyethylene fiber, and is composed of a rope body 30 and loops 6 on both sides. The loop 6 is formed by an ice-price (satsuma knitting) process in which one side and the other side of the rope body 30 are folded back and knitted into the rope body 30. Then, in the central portion of the rope body 30, one side of the rope body 30 woven together and the other side of the rope body 30 overlap each other.

Here, a procedure for manufacturing the rope 5 which is difficult to cut and the loop 6 is difficult to unravel will be described. As shown in FIG. 2, first, a loop 6 is formed on one side of the rope body 30. At this time, at the base end position A determined based on the set size of the loop 6, one side end is passed through the rope body 30. The amount of splice knitted into the rope body 30 is set so that the tip position of one side end knitted into the rope body 30 is close to the loop 6 on the other side of the rope body 30. When one side of the rope body 30 is passed through the base end position A by this amount of splice, a loop 6 having a set size is formed.

Further, one side of the rope body 30 is woven toward the other side of the rope body 30 while passing one end portion through the rope body 30. Insert the rope 5 until it looks like one, and tighten it so that the inner and outer strands are in close contact. As shown in FIG. 3, the woven one-sided end reaches the tip position B on the other side of the rope body 30. The one-sided end is inside the rope body 30 and does not project to the outer circumference of the rope body 30.

Similarly, a loop 6 is formed on the other side of the rope body 30. Knit the other side of the rope body 30 toward one side. As shown in FIG. 4, the braided other side end portion is located at the tip position C on one side of the rope body 30, and does not protrude from the outer circumference of the rope body 30. In the central portion of the rope body 30, one side and the other side of the rope body 30 overlap. That is, a triple structure is formed between BC of the central portion of the rope body 30. In normal ice price processing, the knitting on one side of the rope body 30 and the knitting on the other side do not overlap.

After the ice price processing, the rope body 30 is preloaded. The braided portion of the rope body 30 is stretched, the gap created during braiding is eliminated, and the entire rope 5 is tightened. After that, as shown in FIG. 5, the center of the three-layered rope main body 30 is tied with a string 31 and sewn together. By tying the central portion of the rope body 30 in this way, the end portion of the woven rope 5 does not protrude outward from the rope body 30, and firm knitting can be realized.

As shown in FIG. 6, the protective tape 32 is wrapped around the rope body 30 and the loop 6. As the protective tape 32, an adhesive tape in which an acrylic adhesive is applied to a polyester cloth such as a cloth tape is used. By wrapping the protective tape 32, the rope 5 can be tightened, and further, foreign matter from the outside such as oil or water can be prevented from touching the rope body 30. Therefore, it is possible to prevent the braided portion from loosening, and even if a repeated load is applied to the rope 5, the braided portion is less likely to expand and contract, and the rope 5 can be prevented from being cut.

As shown in FIG. 7, the cover 33 is put on the rope 5 thus manufactured. The cover 33 is made of a canvas with a hook-and-loop fastener. The cover 33 is wound around the rope body 30 between the base end positions A of the loops 6 on both sides and fastened by the hook-and-loop fastener. The cover 33 covers the central portion of the rope body 30 excluding the loops 6 on both sides. Further, the loop 6 is covered with a cover 34 different from the cover 33 of the rope main body 30. The cover 34 may not be covered with the loop 6 and may be used only by wrapping the protective tape 32. Further, the cover 33 may be formed of a resin sheet or a rubber sheet.

When winding the wire W, the hook 4 is attached to the groove 7 of the drum 2, and the start end of the wire W is attached to the chuck 3. When the drum 2 is rotated, tension is applied to the rope 5 of the tons 1, and the rope 5 slides while being in close contact with the outer peripheral surface of the drum 2. The drawn wire W is wound around the outer peripheral surface of the drum 2.

Since the tons 1 using the rope 5 is lighter than the one using a metal chain or wire, the tons 1 can be easily handled and the wire drawing setup becomes easy. Since the rope 5 is preloaded and stretched in advance, even if tension is applied to the rope 5 at the start of use of the tons 1, the initial stretching does not occur. Therefore, since the rope 5 does not shake when the drum 2 starts to rotate, the wire rod W does not vibrate and does not damage the wire rod W.

Further, since the rope 5 is covered with the cover 33, the rope 5 does not come into direct contact with the drum 2 and the wound wire W, so that the rope 5 can be prevented from being damaged and the outer peripheral surface of the drum 2 is damaged. You can prevent that. Further, since the central portion of the rope body 30 is woven in a triple structure, the woven structure is difficult to unravel, and the tensile strength of the rope is increased, so that it is difficult to cut.

It should be noted that the present invention is not limited to the above embodiment, and it goes without saying that many modifications and changes can be made to the above embodiment within the scope of the present invention. The rope 5 is not limited to the above-mentioned fiber rope, and may be a fiber rope using artificial spider silk. Further, instead of attaching the hook 4 to the drum 2 via a metal fitting such as a support 10 as described above, the hook 4 may be directly hooked on the drum 2 to attach the hook 4.

1 Tons 2 Drum 3 Chuck 4 Hook 5 Rope 6 Loop 30 Rope body 31 String 32 Protective tape 33 Cover

Claims (4)

A fiber rope made by twisting a plurality of strands, and a tongue rope having loops on both sides. Loops are formed by folding back one side of the rope body and the other side of the rope body and knitting them into the rope body. , One side end of the woven rope body is located closer to the other side, the other side end of the woven rope body is located closer to one side, and one side of the rope body and the rope in the central part of the rope body A rope for tons that overlaps with the other side of the main body. The rope for tons according to claim 1, wherein a protective tape is wrapped around a rope body to which a preload is applied. The rope for tons according to claim 1 or 2, wherein the central portion of the rope body is tied with a string. The rope for tons according to any one of claims 1 to 3, wherein the central portion of the rope body is covered with a cover.

Images