JP2016150162A - Wire tension adjustment device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a wire tension adjustment device which can adjust a position of a tensed wire by easily adjusting tension or relaxation to a tensing wire from one land by an operator.SOLUTION: A wire tension adjustment device 100 tenses a transverse wire W0 disposed in water. The wire tension adjustment device 100 includes: an anchor 10 to be sunk; a first pulley 20 connected with the anchor 10; a second pulley 30 to which one end of the transverse wire W0 wound around the first pulley 20 is connected and on which the transverse wire W0 is hung; a first adjustment machine 40 which tenses or relaxes the other end of the transverse wire W0 on land; a second adjustment machine 50 which tenses or relaxes the wire 13 connected with the second pulley 30 on land; and a buoy 61 which is set to each of the first pulley 20 and the second pulley 30, and used as a water depth setting member 60 which sets the water depth.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a wire tension adjusting device that can adjust a pulling force of a wire, and more particularly to a wire tension adjusting device that stretches a wire used in a canoe competition or a boat competition using a river, a lake, or the sea. .

Canoe competitions and boat competitions are known in which rivers, lakes, seas, etc. are divided and the required time is reached over a predetermined distance.
In boating, multiple courses are set and start all at once. The course is set with a buoy for levitating the course wire arranged at predetermined intervals on the course wire stretched from the start position to the goal position. A wire tension adjusting device for tensioning the course wire (tensioned wire) is installed at the start position and the goal position.

  Conventionally, a wire tension adjustment for a winch or the like from both sides of a course wire and a horizontal wire for maintaining the alignment of the course wire (hereinafter, the course wire or the horizontal wire may be simply referred to as a wire). I was nervous by the device. Further, both ends of the wire are settled by the anchor, and the wire connected to the anchor is tensioned by the tension adjusting device.

Moreover, what was described in patent document 1 is known as a wire tension adjusting device.
The floating wire adjusting device described in Patent Literature 1 is connected to a float that floats on the water surface and has a first engagement portion, and an end portion of the floating wire that receives buoyancy from the float and floats on the water surface. A float-side connector having a floating wire connecting portion and a second engaging portion (laying wire engaging ring), a weight set on the bottom of the water, a weight connected to the third engaging portion, A weight-side connector, an adjustment wire connected to the weight-side connector, and the float and float sides, in order of the first engaging portion, the second engaging portion, and the third engaging portion from above the water surface And a spacer interposed between the connecting tool and the connector.
According to the floating wire adjustment device described in Patent Document 1, the floating wire can be adjusted by relaxing the adjustment wire from the water without installing a structure such as a winch or an anchor on the shore.

JP 2005-95250 A

However, in the floating wire adjustment device described in Patent Document 1, the tension of the floating wire is adjusted by pulling or loosening the surplus of the adjustment wire protruding from the float, so that the floating wire is adjusted. Adjustment of the wire requires the boat to be on the water, which can be difficult when the weather gets worse.
In addition, when the wire to both banks is tensioned by a winch on land, or when the wire connected at both ends to an anchor that has been submerged in water is tensioned by a winch, it is necessary to adjust at both ends of the wire. The work is complicated. In particular, when adjusting the tension of the wire underwater, the work in the winter is difficult because the work is underwater.
Furthermore, since the course wire in a boat competition is as long as several kilometers, a large tensile force is required for the tension of the course wire.

  Accordingly, there is a demand for a wire tension adjusting device that can easily adjust a course wire or a horizontal wire that is a to-be-tensioned wire when a course is laid or when the course wire meanders and corrects.

  Accordingly, the present invention provides a wire tension adjusting device that allows an operator to adjust the position of a to-be-tensioned wire by easily adjusting the tension and relaxation from one land to the wire for tension. Objective.

  The present invention provides a wire tension adjusting device for tensioning a to-be-tensed wire disposed in water, an anchor to be settled, a first pulley connected to the anchor, and the tension to be wound around the first pulley. A second pulley to which one end of a wire is connected, the second pulley on which the to-be-tensioned wire is hung, a first adjuster for pulling or relaxing the other end of the to-be-tensioned wire on land, A water depth setting member for setting a water depth is provided on each of the first pulley and the second pulley.

  According to the wire tension adjusting device of the present invention, the wire rod wound around the first pulley set with the water depth by the water depth setting unit and hung on the second pulley is tensioned by the first adjusting machine, One pulley is drawn toward the second pulley. Moreover, the tension | tensile_strength of a to-be-tensed wire can be relaxed by the 1st adjustment machine, and it can be brought close to the original position before tensing a to-be-strung wire. Since the to-be-tensed wire is wound around the first pulley and hung on the second pulley, the first pulley connected to the anchor functions as a fixed pulley, and the second pulley attracted by the first adjuster functions as a moving pulley. Therefore, the tensile force to the to-be-tensed wire by the first adjusting machine can be reduced.

Furthermore, it is desirable to include a tension wire whose one end is connected to the second pulley, and a second adjuster that pulls or relaxes the other end of the tension wire on land.
By pulling or relaxing the tension wire with the second adjuster, the second pulley can be pulled or released. By moving the second pulley, the position of the first pulley can also be moved together. Therefore, the to-be-tensioned wire that has been in a tensioned state by the first adjuster can be moved while being further tensioned.

  The water depth setting member is preferably formed of a buoyancy member that suspends the first pulley and the second pulley in water. Since the first pulley and the second pulley are suspended in water by the buoyancy member, the first pulley and the second pulley can be positioned at a desired water depth.

  It is desirable that a weight is provided on each of the first pulley and the second pulley. The first pulley and the second pulley whose water depth is set by the water depth setting member can be stabilized by the weight.

  In the wire tension adjusting device of the present invention, the first pulley and the second pulley can be moved together underwater by the first adjusting machine installed on the land. The tension and relaxation to the wire can be easily adjusted, and the position of the tensioned wire can be adjusted.

It is a figure for demonstrating the wire tension adjustment apparatus which concerns on this Embodiment 1, and is the figure seen in the direction along a course wire in the boat course. It is a figure for demonstrating the 2nd pulley of the wire tension adjustment apparatus which concerns on this Embodiment 2, a 1st adjustment machine, and a 2nd adjustment machine, and sees in the direction along the direction orthogonal to a course wire in a boat course. It is a figure. It is a figure for demonstrating the anchor and 1st pulley of the wire tension adjusting apparatus shown in FIG. 2, and is the figure seen in the direction along the direction orthogonal to a course wire in a boat course.

(Embodiment 1)
A wire tension adjusting device according to Embodiment 1 of the present invention will be described with reference to the drawings. In this embodiment, a boat course for boat competition will be described as an example, but the wire tension adjusting device can also be used for a canoe course for canoe competition.
The wire tension adjusting device 100 shown in FIG. 1 adjusts the wiring direction of the course wire by tensioning the horizontal wire W0 using the horizontal wire W0 orthogonal to each of the course wires W1 dividing the course C as a strained wire. Is.
The horizontal wires W0 connect the course wires W1 by connecting members Ws provided at predetermined intervals, and maintain the intervals between the course wires W1.

The wire tension adjusting device 100 includes an anchor 10, a first pulley 20, a second pulley 30, a first adjusting device 40, a second adjusting device 50, and a water depth setting member 60.
The anchor 10 sinks to one side in the direction crossing the course C and is disposed on the bottom B. Yes. The anchor 10 is connected to the first pulley 20 by a metal wire 11.

  The first pulley 20 includes a pulley body 21, a connection member 22 for the wire 11 rotatably attached to the center of the pulley body 21, and a connection member 23 for a weight 65 extending from the center of the pulley body 21 toward the bottom of the water. The connecting member 24 for the buoy 61 extends in the water surface direction from the center of the pulley body 21.

The pulley body 21 is wound with a horizontal wire W0 as a to-be-tensed wire, and a disk that reverses the wiring direction of the horizontal wire W0 is rotated by a central support shaft.
One end of the connection member 22 for the wire 11 is rotatably attached to the support shaft of the pulley body 21, and the other end is connected to the wire 11. One end of the connection member 23 for the weight 65 is fixed to the support shaft of the pulley body 31, and the other end is hung on the U-shaped metal fitting of the weight 65 to suspend the weight 65. One end of the connecting member 24 for the buoy 61 is fixed to the support shaft of the pulley body 21, and the other end connects the buoy 61 that floats on the water via the wire 12.

  The second pulley 30 includes a pulley body 31, a connection member 32 for the wire 13 rotatably attached to the center of the pulley body 31, and a connection member 33 for the weight 65 extending from the center of the pulley body 21 in the water bottom direction. The connecting member 34 for the buoy 61 extending in the water surface direction from the center of the pulley body 21 and the connecting member 35 for the horizontal wire W0 extending in the direction from the center of the pulley body 31 toward the first pulley 20 are provided.

In the pulley main body 31, a disk hung so that the horizontal wire W0 extends in the opposite direction to the first pulley 20 toward the land is rotated by a central support shaft.
One end of the connecting member 32 for the wire 13 is rotatably attached to the support shaft of the pulley main body 31, and the other end is connected to the wire 13 which is a tension wire. One end of the connection member 33 for the weight 65 is fixed to the support shaft of the pulley body 31, and the other end is hung on the U-shaped metal fitting of the weight 65 to suspend the weight 65. The connecting member 34 for the buoy 61 has one end fixed to the support shaft of the pulley body 31 and the other end connected to the buoy 61 that floats on the water via the wire 12. One end of the connecting member 35 for the horizontal wire W0 is fixed to the support shaft of the pulley body 31, and the other end is connected to one end of the horizontal wire W0.

The first adjuster 40 pulls or relaxes the other end of the horizontal wire W0, which is a to-be-tensed wire, on land. The first adjuster 40 can be a hoist such as a winch.
The second adjuster 50 pulls or relaxes the other end of the wire 13 (tension wire) having one end connected to the second pulley 30 on land. The second adjuster 50 can be a hoist such as a winch.
The first adjuster 40 and the second adjuster 50 are installed on a support base 70 arranged on the other side of the land in the direction crossing the course C.

  The water depth setting member 60 may be a buoy 61 connected to the first pulley 20 and the second pulley 30 via the wire 12.

  The operation and use state of the wire tension adjusting device 100 configured as described above will be described with reference to the drawings. It is assumed that the horizontal wire W0 and the wires 11 and 13 are pulled by the wire tension adjusting device 100 and are in a constant tension state.

A course wire W1 is connected by a connecting member Ws to a horizontal wire W0 stretched from the first pulley 20 to the second pulley 30. Since the first pulley 20 and the second pulley 30 are suspended by the wire 12 from the buoy 61, they are located at a predetermined water depth. Therefore, the course wire W1 can be set to a desired water depth by setting the length of the wire 12 to the installation water depth of the horizontal wire W0.
Since the weight 65 of the water depth setting member 60 is suspended from each of the first pulley 20 and the second pulley 30, the behavior of the first pulley 20 and the second pulley 30 in water can be stabilized.

An operator winds up the horizontal wire W <b> 0 with the first adjuster 40. By winding up the first adjuster 40, the horizontal wire W0 from the first adjuster 40 to the second pulley 30 is tensioned.
When the horizontal wire W0 between the first adjuster 40 and the second pulley 30 is tensioned, the horizontal wire W0 from the second pulley 30 to the first pulley 20 is pulled and tensioned while the pulley body 31 rotates. . Since the first pulley 20 is connected by the wire 11 from the anchor 10, the distance to the anchor 10 is kept constant.
Accordingly, the pulley body 21 of the first pulley 20 around which the horizontal wire W0 is wound rotates, and the horizontal wire W0 from the first pulley 20 to the second pulley 30 is pulled. By doing so, since the wire 13 from the second adjuster 50 is in a constant tension state, the second pulley 30 is drawn toward the first pulley 20 (one side in the direction crossing the course C).

  In this way, the course C can be brought closer to one side of the course C by winding the horizontal wire W0 by the first adjuster 40 and pulling the horizontal wire W0. Moreover, the course C can be brought close to the original position before tensioning the horizontal wire W0 by relaxing the horizontal wire W0 by the first adjuster 40.

Next, the operator winds up the horizontal wire W0 with the second adjuster 50. As the second adjuster 50 is wound up, the wire 13 between the second adjuster 50 and the second pulley 30 is tensioned, whereby the second pulley 30 is drawn toward the second adjuster 50 side.
Since the horizontal wire W0 is connected to the second pulley 30 via the connecting member 35 for the horizontal wire W0, the second pulley 30 is pulled toward the second adjuster 50, so that the second pulley 30 is drawn. To the first pulley 20 is tensioned by being pulled.
As described above, since the first pulley 20 is connected by the wire 11 from the anchor 10, the distance to the anchor 10 is kept constant.

Accordingly, the pulley body 21 of the first pulley 20 around which the horizontal wire W0 is wound rotates, and the horizontal wire W0 from the second pulley 30 to the first pulley 20 is pulled. By doing so, the horizontal wire W0 wound around the first pulley 20 and hung around the second pulley 30 and wound around the first adjuster 40 is in a certain tension state. The first pulley 20 is drawn toward the second pulley 30 (the other side in the direction crossing the course C) while sinking only.
In this way, by winding the wire 13 by the second adjuster 50, the horizontal wire W0 that has been tensioned by the first adjuster 40 can be further tensioned. Course C can be brought to the other side of C.

  As described above, the position between the first pulley 20 and the second pulley 30 is determined by pulling or relaxing the horizontal wire W0 by the first adjuster 40 installed on land. It can be moved in the direction of drawing to 40 or moved away from the first adjuster 40. Moreover, since the wire tension adjusting device 100 functions the first pulley 20 as a fixed pulley and the second pulley 30 as a moving pulley, it is possible to reduce the tensile force applied to the horizontal wire W0. Therefore, the wire tension adjusting device 100 can easily adjust the tension and relaxation of the horizontal wire W0 from one land, so that the meandering of the course wire W1 can be corrected.

(Embodiment 2)
A wire tension adjusting device according to a second embodiment of the present invention will be described with reference to the drawings. 2 and 3, the same components as those in FIG. 1 are denoted by the same reference numerals and description thereof is omitted.
The wire tension adjusting device 110 according to the second embodiment shown in FIGS. 2 and 3 pulls the coarse wire W1 as a to-be-tensed wire.
On the course wire W1, buoys 62 are installed at predetermined intervals from the start to the goal. The buoy 62 is connected to the course wire W1 via the wire 14 provided with the connecting member Wt at the lower end. Since the course wire W1 reaches several kilometers, the weight becomes heavy. For this reason, a buoyant body is provided on the upper course wire W1, and a wire on which a loop for inserting the lower course wire W1 is hung from the upper course wire W1 to suspend the lower course wire W1. , May be supported.

As described above, the wire tension adjusting device 110 is configured in the same manner as the wire tension adjusting device 100 shown in FIG. 1 with the course wire W1 used as the wire to be tensioned instead of the horizontal wire W0 shown in FIG. Can be drawn to the goal side, which is one side, or to the start side, which is the other side.
Moreover, since the 1st pulley 20 and the 2nd pulley 30 are located in the fixed water depth by the buoy 61, the whole course wire W1 can be located in the fixed water depth with the buoy 61. FIG.

  In the wire tension adjusting device according to the first and second embodiments of the present invention, the wire used for the course of the boat competition is described as an example of the wire to be tensioned. However, the wire tension is adjusted by pulling or relaxing the wire. When adjusting the wire tension, the wire tension adjusting device of the present invention can be used.

  The wire tension adjusting device of the present invention is suitable for installing a course wire that divides each course and a horizontal wire that crosses the course wire in a boat course such as a boat competition or a canoe course of a canoe competition.

100, 110 Wire tension adjusting device 10 Anchor 11, 12, 13, 14 Wire 20 First pulley 21 Pulley body 22, 23, 24 Connection member 30 Second pulley 31 Pulley body 32, 33, 34, 35 Connection member 40 First Adjuster 50 Second adjuster 60 Depth setting member 61 Buoy 65 Weight 70 Support base C course B Water bottom W0 Horizontal wire W1 Course wire Ws Connecting member Wt Connecting member

Claims (4)

In a wire tension adjusting device that tensions a to-be-tensioned wire disposed in water,
With anchor anchored,
A first pulley connected to the anchor;
A second pulley to which one end of the to-be-tensioned wire wound around the first pulley is connected, the second pulley on which the to-be-tensioned wire is hung,
A first adjuster that pulls or relaxes the other end of the wire to be tensioned on land;
A wire tension adjusting device provided with a water depth setting member provided on each of the first pulley and the second pulley for setting a water depth.   The wire tension adjusting device according to claim 1, further comprising: a tension wire having one end connected to the second pulley, and a second adjuster that pulls or relaxes the other end of the tension wire on land.   3. The wire tension adjusting device according to claim 1, wherein the water depth setting member is formed of a buoyancy member that suspends the first pulley and the second pulley in water. 4.   The wire tension adjusting device according to any one of claims 1 to 3, wherein a weight is provided on each of the first pulley and the second pulley.

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