JPH09248773A - Rope vice forming jig, auxiliary tool for it, and rope vice forming method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a rope vice forming jig, an auxiliary jig for it, and a rope vice forming method capable of sufficiently performing a stretch with a little force. SOLUTION: A rope vice forming jig 10 is provided with a rope hooking part 14, a first pulley 15a, and a second pulley 16a. The one end of a rope whose the other end is hooked on a hook on the first point (not shown in the figure) is brought to the second point side (the side of hooks 21a, 21b) and one-turn or doubly wound on the rope hooking part 14, and the rope is hooked. Therefore, the rope vice forming jig 10 is fixed on the way between the first point and the second point. After the rope is hooked on the hook 21b, it is folded up and hooked on a first pulley 15a. After that, it is hooked on the other hook 21a, and it is folded again up and hooked on a second pulley 16a of the rope vice forming jig 10. After that, the rope is pulled down. At this time, stretching force is made five times as large as force for pulling the rope.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rope vise forming jig for use with belt-shaped members such as ropes, wires, belts and chains, for example, when tightening a load of a truck, its auxiliary tool and rope. Regarding vise forming method.

[0002]

2. Description of the Related Art Conventionally, when a so-called rope vise is used to clamp a load of a truck, for example, the following has been done. That is, as shown in FIG. 13, the other end of the rope, one end of which is fixed to a hook (not shown) on the other side of the loading platform, is laid over the load to be near the hook F provided on this side of the loading platform. Then, fold the rope back to make a loop, and wind the rope slightly above the middle of the loop. Then, the loop is divided into an upper loop L1 and a lower loop L2. Then, after hooking the rope on the hook F, the rope is folded back upward and passed through the lower loop L2, and the rope is pulled down to pull the lower loop L2 downward. As a result, the rope is tightened. In this state, if the rope is tied in a well-known way, the load tightening is completed.

However, with the above-mentioned rope vise, skill is required until the load can be properly tightened, and even an expert may unwind the upper loop L1 during pulling and fall. It was In order to overcome such a problem, for example, in Japanese Utility Model Laid-Open No. 6-80566, FIG.
The rope vise forming jig 90 shown in is disclosed. In such a rope vise forming jig 90, the rope has three notches 9
The rope is hooked by being wound around 1, 92, and 93, and the tip of the rope is hooked on the hook F of the loading platform, then folded back upward and hooked on the hook portion 94, and the tip of the rope is pulled downward. As a result, the rope is tightened. By tying the rope in a known manner in this state, a rope vise is formed, and the load tightening is completed. According to the rope vise forming jig 90, no skill is required to form the rope vise, and there is no fear that the rope vise forming jig 90 will come off the rope when the tip of the rope is pulled downward. .

[0004]

However, in the rope vise forming jig 90, the force of finally pulling the tip of the rope downward determines the tightening condition of the load, so that the elderly person or the woman can be prevented. For people with weak strength such as, there was a risk that they could not be tightened sufficiently.

The present invention has been made in view of the above problems, and an object of the present invention is to provide a rope vise forming jig that can be tightened sufficiently with a small force, an auxiliary tool for the same, and a rope vise forming method.

[0006]

Means for Solving the Problems and Effects of the Invention In order to solve the above-mentioned problems, the present invention is fixed in the middle of a belt-shaped member that stretches a first point and a second point, and tightens the belt-shaped member with a tightening force. In a rope vise forming jig used for forming a so-called rope vise to be enhanced, a direction switching portion for returning the belt-shaped member after returning to the first point side at the second point to the second point side again is provided. It is characterized by having a plurality. In addition, in the present invention, the "strip-shaped member" is meant to include ropes, wires, belts, chains and the like.

This rope vise forming jig is used, for example, as follows. First, a rope vise forming jig is fixed in the middle of a belt-shaped member that stretches the first point and the second point (jig fixing step). As the fixing method, for example, a rope hooking portion may be provided on the rope vise forming jig, and the rope may be wound around the rope in a single or doubled manner and fixed, or the end portion of the belt-shaped member may be fixed. The hook portion may be provided on each of the rope vise forming jig and the hook portions may be fixed by being hooked.

Subsequently, the strip-shaped member extending from the rope vise forming jig to the second point side is folded back to the first point side at the second point, and then the rope vise forming jig is switched in plural directions. It is folded back to the second point side at the vacant direction switching portion of the section (folding step). Here, the strip-shaped member extending from the rope vise forming jig to the second point side may be continuous with the strip-shaped member from the first point to the rope vise forming jig, or is not continuous and is a different object. May be.

Then, the folding step is repeated until a plurality of directional switching portions of the rope vise forming jig are emptied, and then a tensile force is applied to the rope (tightening step). In the present invention, a plurality of direction switching parts, that is, at least two are provided. Therefore, comparing the case where the rope vise forming jig of No. Kaikaihei 6-80566 is used with the case where the rope vise forming jig of the present invention is used, it is assumed that the rope is pulled with the same force. The force for tightening the rope is 1.67 times or more stronger when the rope vise forming jig of the present invention is used.

As described above, according to the rope vise forming jig of the present invention, it is possible to sufficiently tighten the rope with a small force. For this reason, even if the worker is a weak person such as an elderly person or a woman, the work of tightening the load, raising the planting tree,
It can easily be used to build a wooden structure, rescue a car when it is parked in a U-shaped groove when entering or exiting a parking lot, warehouse, etc.

Here, in the rope vise forming jig of the present invention, it is preferable that the direction switching portion is formed by a pulley. When the rope is slid as the direction switching portion not as a pulley but as a simple bar member, the resistance increases accordingly. Therefore, considering that the tightening is sufficiently performed with a smaller force, it is preferable that the direction switching portion is a pulley.

Further, it is preferable that the direction switching section is provided with a disengagement prevention member for preventing the rope folded back at the direction switching section from coming off the direction switching section. If this disengagement prevention member is provided, there is no risk that the rope will come off from the direction switching portion when the rope is pulled and tightened, and safety is further enhanced in performing tightening work.

In addition to the rope vise forming jig, an auxiliary tool having a plurality of pulleys may be provided at the second point. When such an assisting tool is used, when the strip-shaped member extending from the rope vise forming jig to the second point side is turned back to the first point side at the second point in the folding step, a plurality of auxiliary tools are used. Of the pulleys, the empty pulley will be used. On the other hand, if the rope is slid as a mere bar without providing such an auxiliary tool at the second point,
The resistance increases a little. For this reason, considering the point of sufficiently tightening with a smaller force, it is preferable to provide an auxiliary tool at the second point to slide the rope.

[0014]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described below with reference to the drawings. Note that the embodiment of the present invention
It is needless to say that the present invention is not limited to the following embodiments, and can take various forms within the technical scope of the present invention. [First Embodiment] The first embodiment is an example of a rope vise forming jig and a method for forming a rope vise using this jig. FIG. 1 is a perspective view of a rope vise forming jig, and FIG. 2 is a front view of the same.

The rope vise forming jig 10 of the first embodiment is
As shown in FIG. 1, it is formed of a metal rod and includes a rod-shaped portion 11, an upper hook portion 12, a lower hook portion 13, a rope hooking portion 14, a first pulley 15a, and a second pulley 16a. . The first and second pulleys 15a and 16a correspond to the direction switching unit of the present invention.

The rod-shaped portion 11 is formed in a straight shape. The upper hook portion 12 is formed in a hook shape on the upper side of the rod-shaped portion 11. The lower hook portion 13 is formed in a hook shape below the rod-shaped portion 11 in a direction substantially orthogonal to the upper hook portion 12.

The rope hooking portion 14 is formed so as to extend in a direction substantially perpendicular to the rod-shaped portion 11 near the boundary between the upper hook portion 12 and the rod-shaped portion 11. The tip of the rope hooking portion 14 is bent upward to form a bending portion 14a,
A pin 18 for rotatably supporting the stopper 17 is provided on the bent portion 14a. The stopper 17 is constantly urged by the torsion coil spring 19 so as to be placed in the closed position (the position shown by the solid line in FIG. 2), but since the lower end is in contact with the bent portion 14a, the closure 17 is closed. It does not rotate further clockwise from the position in FIG. The stopper 17 is rotated counterclockwise in FIG. 2 from the closed position to the open position (the position indicated by the chain double-dashed line in FIG. 2) when a force is applied from the outside.

The first pulley 15a is a cylindrical ring, and is loosely inserted at a position below the rod-shaped portion 11 on a first support shaft 15b extending substantially perpendicularly to the rod-shaped portion 11. A first disengagement prevention member 15c is provided at an end of the first support shaft 15b to prevent the rope from disengaging from the first pulley 15a.

The second pulley 16a is a cylindrical ring, and is loosely inserted into a second support shaft 16b which extends substantially perpendicularly to the rod-shaped portion 11 at a substantially central position of the rod-shaped portion 11.
At the end of the second support shaft 16b, the rope is attached to the second pulley 16a.
First disengagement prevention member 16c for preventing the disengagement from
Is provided.

The first and second pulleys 15a and 16a may be rotatably mounted around the first and second support shafts 15b and 16b via bearings. Next, a usage example of the rope vise forming jig 10 according to the first embodiment will be described with reference to FIGS. 3 and 4, taking as an example a case where a load on a loading platform of a vehicle is clamped. FIG. 3 is a perspective view of the cargo bed that has been clamped.
FIG. 4 is an explanatory view of a main part of the load tightening.

One end of the rope is hooked on the hook 22 on the other side (first point) of the loading platform 20. The other end of the rope is brought to the front side (the second point) of the loading platform 20 so as to bridge the load of the loading platform 20, and the rope locking portion 14 of the rope vise forming jig 10 is loaded with one or two layers. Hang it by wrapping it heavily or tying a knot. As a result, the rope vise forming jig 10 is fixed midway between the first point and the second point.

After the rope is hooked on the hook 21b on the front side of the loading platform 20, the rope is folded back and hooked on the first pulley 15a of the rope vise forming jig 10. afterwards,
After hooking on another hook 21a on the front side of the loading platform 20,
Fold back upward again, this time with a rope vise forming jig 10
To the second pulley 16a. Then pull this rope downwards. At this time, the tightening force is about 5 times the pulling force of the rope (about 1.67 times that of the conventional rope vise forming jig 90). Then, while pulling the rope, the rope is tied to the hook 21b by a known method.

In this way, a sufficient tightening force can be obtained even if the pulling force of the rope is small, and the worker can firmly clamp the load even if the worker is a weak person such as an elderly person or a woman. . In addition, since the first and second pulleys 15a and 16a are rotatable with respect to the first and second support shafts 15b and 16b, respectively, when the rope is pulled, the rope is connected to the first and second pulleys 15a and 16a. Friction force (resistance) between
Since it does not occur, it can be pulled smoothly.

Incidentally, the rope vise forming jig 10 of the first embodiment.
In addition to the above-mentioned cargo tightening, the planting of trees, the construction of wooden frameworks, the rescue of cars when they leave the U-shaped groove when entering or leaving a parking lot or warehouse, and driving and outdoor activities It can be used in the same manner for the escape of troubles.

The lower hook portion 13 can also be used as a third direction switching portion. In this case, a tightening force about 7 times the pulling force of the rope is obtained. At this time,
As shown in FIG. 6C, a part of the lower hook portion 13 is used as a third support shaft 55b, and a third pulley 55a rotatable with respect to the third support shaft 55b is provided. You may provide the 3rd detachment prevention member 55c in the edge part.

Further, instead of winding the rope around the rope hooking portion 14 to hook the rope, the rope may be wound around the upper hook portion 12 to hook the rope. [Modification of First Embodiment] In the first embodiment, the rope hooking portion 14 may have a shape projecting on both sides of the rod-shaped portion 11 as shown in FIG. 5, for example.

In addition, the first and second pulleys 15a and 16a
For example, as shown in FIG. 6A, the rod-shaped portions 11 may be sandwiched so as to be arranged symmetrically.
As shown in (b), one support shaft may be provided with two pulleys. Furthermore, the first and second detachment prevention members 15c, 16
c may have a polygonal shape (for example, a quadrangular shape) other than the disk shape, or may have a shape in which the first and second support shafts 15b and 16b are bent upward. Even with these shapes, it is possible to reliably prevent the rope from coming off during tightening. [Second Embodiment] A second embodiment is an example of an auxiliary tool and a method for forming a rope vise using the auxiliary tool. FIG. 7 is a perspective view of an auxiliary tool.

The auxiliary tool 30 includes a rod-shaped portion 31, an upper hook portion 32, a loop portion 33, and first and second pulleys 35 and 36. The rod-shaped part 31 is formed in a straight shape. The upper hook portion 32 is formed in a hook shape on the upper side of the rod-shaped portion 31. The loop portion 33 is formed in a loop shape below the rod-shaped portion 31. The first and second pulleys 35 and 36 are cylindrical rings that are loosely inserted in one support shaft 37. At the boundary between the first and second pulleys 35 and 36, a disengagement prevention portion 38 is provided to prevent the rope from coming off the first pulley 35, and at the end of the support shaft 37, the rope is separated from the second pulley 36. A detachment prevention portion 39 is provided to prevent the detachment.

Next, a usage example of the auxiliary tool 30 will be described with reference to FIG. FIG. 8 is an explanatory view of a main part of the rope vise. First, the other end of the rope, one end of which is fixed to the first point (see FIG. 3), is brought to the second point (see FIG. 3) side so as to bridge the load, and the rope vise forming jig is provided. 1
The rope hooking portion 14 of 0 is wound by wrapping it in a single or double layer or by forming a knot. As a result, the rope vise forming jig 10 is fixed midway between the first point and the second point.

The hook 2 on the front side of the loading platform 20 is previously prepared.
First of the assisting tool 30 in which the loop portion 33 is inserted through 1a
After hooking the rope on the pulley 35, fold it back upwards,
The rope vise forming jig 10 is hooked on the first pulley 15a.
After that, after hooking on the second pulley 36 of the auxiliary tool 30, it is folded back again and hooked on the second pulley 16a of the rope vise forming jig 10 this time. Then pull this rope downwards. Then, while pulling the rope, the rope is tied to the hook 21a by a known method.

When the auxiliary tool 30 is used in this way,
In addition to the same effects as the first embodiment, the following effects are also achieved. That is, when the rope is hooked directly on the hook 21a of the loading platform as in the first embodiment, the rope slides on the hook 21a, so that the resistance is slightly increased. Since the two pulleys 35 and 36 are used, there is no such resistance, and the tightening can be sufficiently performed with a smaller force.

The upper hook portion 32 of the auxiliary tool 30 may be used for further folding back. Further, instead of the auxiliary tool 30, another rope vise forming jig 10 may be used. That is, the rope vise forming jig 10 can be used in the same manner as the auxiliary tool 30 by inserting the hook 21 a of the luggage carrier 20 into the upper hook portion 12. [Third Embodiment] In the third embodiment, a belt clamp is attached to the end of the belt, and the rope vise forming jig of the first embodiment is attached to the belt clamp to form a rope vise. It is an example of a method of doing. FIG. 9 is a perspective view showing a usage state of the belt fastening tool, and FIG. 10 is a sectional view showing a usage state of the belt fastening tool.

The belt tightening tool 40 includes a body frame 41, first and second fastening glasses 42 and 43, a hook portion 44, and a belt frame 4.
Consists of five. The body frame 41 is formed by bending a metal rod into a rectangular shape, and has an upper side 41a and side sides 41b, 41b in the vertical direction.
And the lower side 41c. The first fastening glasses 42 are provided with loop portions 42a, 42a at both ends.
2a and 42a are the side edges 41b and 41 of the body frame 41 in the vertical direction.
It is loosely inserted in b. The second fastening glasses 43 are provided with loop portions 43a, 43a at both ends, and the loop portion 4
3a and 43a are the side edges 41b and 41 of the body frame 41 in the vertical direction.
It is loosely inserted in b. The first and second fastening glasses 42 and 43 are movable between the upper side 41a and the lower side 41c of the main body frame 41. The hook portion 44 is formed by bending a metal rod material into a substantially triangular shape on the lower side of the main body frame 41. The belt frame 45 is formed of a metal rod material in a frame shape so as to extend substantially vertically from the main body frame 41.

The belt tightening tool 40 is used as follows. First, one end is on the other side of the loading platform (first point: Fig. 3
Insert the other end of the belt fixed to the hook (see) between the upper side 41a of the main body frame 41 and the first fastening glasses 42 from the front side, and then the second fastening glasses 43 and the lower side 41c of the main body frame 41. It is pulled out from the space to the front side, and further, from the space between the first fastening glasses 42 and the second fastening glasses 43, the first fastening glasses 42 are passed through and pulled out to the front side. As shown in FIG. 10, the remaining belt is folded in multiple layers and stored in the belt frame 45.

According to this belt tightening tool 40, the belt is clamped by the first and second fastening glasses 42 and 43 even when the belt is loosened. There is no risk of the belt tightening tool 40 coming off. After the belt is fastened to the belt fastening tool 40 in this manner, the upper hook portion 12 of the rope vise forming jig 10 is hooked to the hooking portion 44 of the belt fastening tool 40. At this time, the stopper 17 of the rope vise forming jig 10 is once pushed down to the open position (see the chain double-dashed line in FIG. 2), and then the hook portion 44 of the belt tightening tool 40 engages with the upper hook portion 12. After that, the torsion coil spring 19 urges the closed position (see the solid line in FIG. 2). Therefore, the belt tightening tool 4
The hook portion 44 of 0 and the upper hook portion 12 of the rope vise forming jig 10 are not likely to come off unexpectedly.

Next, a method of forming a rope vise by the rope vise forming jig 10 will be described with reference to FIG. FIG. 11 is an explanatory view of the main part of the rope vise in the third embodiment. First, the loop part L provided at one end of the rope
Is hooked on the lower hook portion 13 of the rope vise forming jig 10. Then, the auxiliary tool 30 in which the loop portion 33 is inserted through the hook 21a on the front side (second point) of the loading platform 20 in advance.
After hooking the other end side of the rope on the first pulley 35, the first pulley 15 of the rope vise forming jig 10 is folded back.
hook on a. After that, after hooking on the second pulley 36 of the auxiliary tool 30, it is folded back again and hooked on the second pulley 16a of the rope vise forming jig 10 this time. Then pull this rope downwards. Then, while pulling the rope, the rope is tied to the hook 21a by a known method.

In this way, the rope vise forming jig 10 and its auxiliary tool 30 can be used even when the load is fastened using the belt. In this case, the belt and the rope correspond to the belt-shaped member of the present invention. [Other Embodiments] For example, in FIG. 8, another rope vise forming jig 10 may be attached to the portion where the rope is pulled (see FIG. 12). That is, the rope is wound around the rope hooking portion 14 to be hooked, and then the rope is attached to the auxiliary tool 3
After being hooked on the upper hook portion 32 of 0, it may be folded back upward, hooked on the first pulley 15a of the rope vise forming jig 10, and then the rope may be pulled downward.
In FIG. 12, a large tightening force can be obtained with a smaller force than in the case of FIG.

[Brief description of drawings]

FIG. 1 is a perspective view of a rope vise forming jig.

FIG. 2 is a front view of a rope vise forming jig.

FIG. 3 is a perspective view of a cargo bed that has been clamped.

FIG. 4 is an explanatory view of a main part of a rope vise in the first embodiment.

FIG. 5 is an explanatory view of a modified example of the rope vise forming jig.

FIG. 6 is an explanatory diagram of a modified example of the rope vise forming jig.

FIG. 7 is a perspective view of an auxiliary tool.

FIG. 8 is an explanatory view of a main part of a rope vise in the second embodiment.

FIG. 9 is a perspective view showing a usage state of the belt tightening tool.

FIG. 10 is a cross-sectional view showing a usage state of the belt tightening tool.

FIG. 11 is an explanatory view of a main part of a rope vise in the third embodiment.

FIG. 12 is an explanatory view of a main part of a rope vise according to another embodiment.

FIG. 13 is an explanatory view of a main part of a conventional rope vise.

FIG. 14 is a perspective view of a conventional rope vise forming jig.

[Explanation of symbols]

10 ... Rope vise forming jig, 11 ... Rod-shaped part,
12 ... upper side hook part, 13 ... lower side hook part, 14 ... rope hooking part, 15a ...
1st pulley, 15c ... 1st detachment prevention member, 16
a ... second pulley, 16c ... first detachment preventing member,
20 ... loading platform, 21a, b ... (at the second point) hook, 2
2 ... Hook (at the first point), 30 ... Auxiliary equipment,
40 ... Belt fastener

Claims (6)

[Claims] 1. A rope vise forming jig for use in forming a so-called rope vise that is fixed in the middle of a belt-shaped member that stretches between a first point and a second point and that enhances the tightening force of the belt-shaped member. A rope vise forming jig, comprising a plurality of direction switching portions for returning the belt-shaped member after returning to the first point side at the second point to the second point side again. 2. The rope vise forming jig according to claim 1, wherein the direction switching portion is formed by a pulley. 3. The disconnection preventing member for preventing the rope folded back at the direction switching unit from coming off the direction switching unit is provided in the direction switching unit. Alternatively, the rope vise forming jig described in 2. 4. The method according to claim 1, wherein the second point is provided.
An auxiliary tool for use with the rope vise forming jig according to any one of claims 1 to 5, which is provided with a plurality of pulleys. 5. A jig fixing step for fixing the rope vise forming jig according to claim 1 in the middle of a belt-shaped member that stretches the first point and the second point, and the rope vise forming step. The strip-shaped member extending from the force forming jig to the second point side is folded back to the first point side at the second point, and then the rope vise forming jig is vacant among a plurality of direction switching portions. A fold-back process in which the direction switching unit folds back to the second point side and the fold-back process is repeated until a plurality of directional switching units of the rope vise forming jig are emptied, and then a tensile force is applied to the rope. A rope vise forming method including a tightening step. 6. In the folding step, the auxiliary tool according to claim 4 is provided at a second point, and the strip-shaped member extending from the rope vise forming jig toward the second point is provided at a second point. The method for forming a rope vise according to claim 5, wherein an empty pulley is used among the plurality of pulleys of the auxiliary tool when the rope is folded back to the one point side.