JP6005688B2 - Wire tension adjuster - Google Patents

Description

  The present invention relates to a wire tension adjusting device capable of adjusting a pulling force of a wire, and in particular, a wire tension used when a wire for partitioning a course is stretched in a boat competition using a river, a lake, or the sea. The present invention relates to an adjusting device.

Boat competitions are known in which rivers, lakes, seas, etc. are divided and competed for required time over a predetermined distance.
In this boat competition, 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.

As such a wire tension adjusting device, one described in Patent Document 1 is known.
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 adjusting device described in Patent Document 1, since the spacer interposed between the float and the float side connector is provided, for example, the floating wire is set so that the water depth is close to 2 m. If it is desired to do so, a spacer having a length of 2 m is required. Therefore, handling is complicated during transportation, installation, storage, etc., and a large space must be secured.
In addition, the floating wire that is a tension wire is pulled up from the float while sliding on the laying wire engaging ring, so it is difficult to pull up due to friction between the floating wire and the laying wire engaging ring.

  Therefore, an object of the present invention is to provide a wire tension adjusting device that can easily lift a tension wire from a float and can be easily handled during transportation, installation, storage, and the like.

  The present invention relates to a wire tension adjusting device that tensions a to-be-tensed wire disposed in water, a float that floats on a water surface, an anchor that sinks, a wire for setting a water depth that hangs down from the float, and the water depth setting device. A second member connected to the anchor; a second member connected to the anchor; and a tension wire that tensions the tensioned wire by pulling it up from the float, and the second member. Is formed by a pulley, and the wire for tension is wound around the pulley of the second member from the float and connected to the first member.

According to the wire tension adjusting device of the present invention, when the tension wire is pulled up from the float by approaching the float with a boat or the like, the tension wire pulls the first member through the pulley of the second member, and the tension is applied. Tension the wire. Since the tension wire is drawn toward the first member by the pulley of the second member, the friction between the pulley of the second member and the tension wire can be reduced, so that the tension wire can be smoothly removed from the float. Can be raised. Moreover, a 1st member pulls and tensions a to-be-tensed wire in the state which maintained the water depth with the wire for water depth setting drooping from a float. Therefore, since only the water depth setting wire is required to secure the water depth of the first member, the wire tension adjusting device of the present invention is not bulky.
Here, the “connection” means a state in which a wire such as a wire or a rope is fixed by being tied to a connection partner or tightened using a metal fitting.

The first member is formed by a pulley, and the tension wire is hung on the pulley of the first member from the float, and is then hung on the pulley of the second member, to the first member. It is desirable to be connected.
By being configured in this way, the pulley of the first member functions as a moving pulley, and the pulley of the second member functions as a fixed pulley, so that the force required to pull up the tension wire can be reduced. .

The second member includes N (where N is an integer equal to or greater than 1) pulleys, the first member includes N or N + 1 pulleys, and the tension wire includes the first member. When the number of pulleys of the first member is N, the end of the tension wire is connected to the first member, and the number of pulleys of the first member is N + 1. In this case, it is desirable to be connected to the second member.
The second member may include one or more pulleys, and the first member may include the same number of pulleys as the first member or the number of pulleys of the second member plus one. By increasing the number of pulleys included in the first member and the second member, the tension wire can be further wound with a small force.

  When the first member or the second member is formed by a plurality of pulleys, if the plurality of pulleys are arranged so as to be lined up and down, they are hung around the pulleys of the first member or the second member. It is hard to get tangled with the wire for tension.

  If the first member is provided with a water depth setting weight, the water depth of the first member positioned by the water depth setting wire can be further stabilized, so that the to-be-tensed wire is stabilized at a constant water depth. Can be made.

  The second member can be prevented from being twisted and entangled with a tension wire provided with either or both of a kinking prevention float and a kinking weight.

  When the to-be-tensioned wire is a course wire that divides each course, the course wire can be firmly stretched with appropriate tension.

  If the said to-be-tensioned wire is a horizontal wire that crosses each course, the course wire can be lifted without slack, and the distance between the course wires can be maintained.

  The wire tension adjusting device of the present invention can pull the tension wire from the float smoothly and is not bulky, so it is easy to pull the tension wire from the float and is easy to handle during transportation, installation, storage, etc. .

It is a figure which shows the whole boat course in which the wire tension adjusting device which concerns on this Embodiment 1 was installed. It is a figure for demonstrating the structure of the wire tension adjusting apparatus shown in FIG. It is a figure for demonstrating each part of the wire tension adjusting apparatus shown in FIG. 1, (A) is an enlarged view which shows a float, (B) is an enlarged view which shows a 1st member, (C) shows a 2nd member. It is an enlarged view. It is a figure for demonstrating the structure of the horizontal wire of the boat course shown in FIG. It is a figure for demonstrating the structure of the wire tension adjusting apparatus which concerns on this Embodiment 2. FIG. It is a figure for demonstrating each part of the wire tension adjusting apparatus shown in FIG. 5, (A) is an enlarged view which shows a 1st member, (B) is an enlarged view which shows a 2nd member. It is a figure for demonstrating the structure of the wire tension adjusting apparatus which concerns on this Embodiment 3. FIG. It is a figure for demonstrating each part of the wire tension adjusting apparatus shown in FIG. 7, (A) is an enlarged view which shows a 1st member, (B) is an enlarged view which shows a 2nd member.

(Embodiment 1)
A wire tension adjusting device according to Embodiment 1 of the present invention will be described with reference to the drawings.
In the boat course 100 shown in FIG. 1, course wires W1 and W2 that divide the courses are laid in parallel at predetermined intervals. The boat course 100 has a start line distance of 1000 m.

On both course wires W1, outer boundary buoys V1 indicating the boundary with the outside are installed every 50 m. The course wire W1 is provided with a distance display buoy V2 indicating a distance every 250 m. A boundary buoy V3 is installed every 20 m on the inner course wire W2 sandwiched between the course wires W1 on both sides. A goal flag F indicating a goal is installed on the goal line of the boat course 100.
Further, a horizontal wire W3 straddling the respective course wires W1, W2 is stretched at the start point, the goal point, and the intermediate point.

  In the boat course 100, the wire tension adjusting device 10 which pulls these wires using the course wires W1 and W2 as tensioned wires and puts them in a tension state is provided at both ends (start point, goal point) of each course wire W1 and W2. is set up. Further, on the boat course 100, the wire tension adjusting device 10 is installed at the start point, the goal point, and the intermediate point using the horizontal wire W3 as a to-be-tensed wire.

First, the wire tension adjusting device 10 that tensions the course wires W1, W2 will be described with reference to FIG.
As shown in FIG. 2, the wire tension adjusting device 10 is connected to a float 11 that floats on the water surface S, an anchor 12 that sinks, a water depth setting wire 13 that hangs down from the float 11, and the course wires W1 and W2. A first member 14 and a second member 15 to which the anchor 12 is connected.

  As shown in FIGS. 2 and 3A, the float 11 is formed in a substantially cylindrical shape. A water depth setting wire 13 connected to the first member 14 enters the float 11 from the bottom surface, and a fastening portion 11a connected to and fixed to the float 11 is disposed inside the upper portion. The fastening portion 11a has a locking mechanism so that the tension wire 16 that enters from the center of the bottom surface of the float 11 and is pulled out from the top surface is not pulled into the water after being pulled out.

As shown in FIG. 2, the anchor 12 is disposed on the bottom B. The anchor 12 is connected to the second member 15 by a metal wire 12a. The position of the anchor 12 and the length of the wire 12a are set so that the water depth of the second member 15 is deeper than that of the first member 14 when the tension wire 16 is tensioning the course wires W1 and W2. Is desirable.
The water depth setting wire 13 is a wire for connecting the float 11 and the first member 14. The length of the water depth setting wire 13 is set to a depth at which the course wires W1, W2 are held in water.

  As shown in FIG. 2 and FIG. 3 (B), the first member 14 includes the tip of the water depth setting wire 13 from the float 11, the end of the course wires W1 and W2, and the tension wire from the second member 15. 16 is a ring-shaped member to which the terminal ends are connected. The first member 14 is provided with a water depth setting weight 17.

  As shown in FIGS. 2 and 3C, the second member 15 is formed by one pulley. As for the 2nd member 15, the wire 16 for tension | tensile_strength from the float 11 is wound around this pulley. The second member 15 is provided with a kinking prevention float 18 and a kinking prevention weight 19.

  The tension wire 16 is a rope connected from the float 11 to the first member 14 via the second member 15. The tension wire 16 can be used because, for example, a marine rope has high durability and wear resistance.

  As shown in FIG. 2, the wire tension adjusting device 10 configured as described above approaches the float 11 with a boat (not shown), and manually pulls up the tension wire 16 or winds it up with a winch or the like. Thus, the tension wire 16 between the float 11 and the second member 15 is drawn toward the float 11 side. Next, the tension wire 16 between the second member 15 and the first member 14 is drawn to the second member 15. Accordingly, the first wires 14 are drawn toward the second member 15 side, and the course wires W1 and W2 are tensioned.

  Thus, when the tension wire 16 is pulled up from the float 11, the tension wire 16 is drawn toward the first member 14 by the pulley of the second member 15. Therefore, the friction between the pulley of the second member 15 and the tension wire 16 is reduced compared to the case where the tension wire is pulled up while sliding on the laying wire engagement ring of the floating wire adjusting device described in Patent Document 1. Can be low. Therefore, the wire tension adjusting device 10 can smoothly lift the tension wire from the float.

  Further, since the first member 14 is connected to the water depth setting wire 13 that hangs down from the float 11, the first member 14 is set by the water depth setting wire 13 when the first member 14 is drawn toward the second member 15. The first member 14 is attracted at a deep water depth. Therefore, the wire tension adjusting device 10 is not bulky compared to the spacer of the floating wire adjusting device described in Patent Document 1 because the water depth setting wire 13 is formed of a wire. In the wire tension adjusting device 10, the first member 14 is a ring-shaped member, the second member 15 is a pulley, and the other is a rope or a wire. Since there are no members, handling is easy during transportation, installation, and storage.

  Since the first member 14 is provided with the water depth setting weight 17, the water depth of the first member 14 positioned by the water depth setting wire 13 can be further stabilized. Therefore, the water depth setting weight 17 can stabilize the to-be-tensed wire at a constant water depth.

  Furthermore, since the second member 15 is located at a deeper water depth than the first member 14, when the tension wire 16 is pulled up from the float 11, the first member 14 acts to be drawn into a deeper water depth. Since the first member 14 is connected to the water depth setting wire 13, it does not sink deeper any further. Therefore, the first member 14 can be prevented from rising, and the water depth of the course wires W1, W2 can be further stabilized.

  Further, in the first embodiment, the second member 15 is provided with the kinking prevention float 18 and the kinking prevention weight 19, and therefore, between the first member 14 and the second member 15, the float 11. And it can prevent that the wire 16 for tension straddling between the 2nd member 15 is twisted and entangled.

Note that either one or both of the kinking prevention float 18 and the kinking prevention weight 19 may be provided. By providing both in the 2nd member 15, it can oppose stronger kinking force.
In the first embodiment, the anchor 12 is connected to the second member 15 by the wire 12a. However, if there is no problem even if the wire 12a is not present, the wire 12a can be omitted.

  In the wire tension adjusting device 10 according to the first embodiment, the tension wire 16 is wired to the second member 15 in an inclined state from the float 11, so that there is a concern that troubles may occur in the travel of boats and the like. . In this case, a space for traveling such as a boat may be secured by attaching a weight to the tension wire 16 between the float 11 and the second member 15 and loosening the tension wire 16.

Next, the wire tension adjusting device 10 that tensions the horizontal wire W3 will be described with reference to the drawings.
The wire tension adjusting device 10 installed at the start point, goal point, and intermediate point shown in FIG. 1 is connected to a horizontal wire W3 shown in FIG. 4 as a to-be-tensed wire.
The horizontal wire W3 is installed so as to cross the course wires W1 and W2 that divide each course. On the horizontal wire W3, a connector 20 to be hooked on the course wires W1, W2 is arranged at every course interval.
The connector 20 is a hook metal fitting having a hook portion having a fishhook shape and a stopper portion that closes the opening portion of the hook portion while being biased by an elastic force.
The both ends of the horizontal wire W3 are pulled by the wire tension adjusting device 10 through the course wire W1 and W2 through the coupling tool 20, thereby lifting the course wires W1 and W2 without slack and maintaining the distance between the course wires W1 and W2. can do.

(Embodiment 2)
A wire tension adjusting device according to a second embodiment of the present invention will be described with reference to the drawings. 5 and 6, the same components as those in FIGS. 2 and 3 are denoted by the same reference numerals, and description thereof is omitted.
In the wire tension adjusting device 10x shown in FIG. 5, the first member 14x to which the course wires W1, W2 are connected is formed by one pulley.

  As shown in FIGS. 5 and 6A, the first member 14x has the tension wire 16 from the float 11 wound around the pulley. Further, as shown in FIGS. 5 and 6B, the tension wire 16 from the first member 14x is wound around the pulley of the second member 15. As shown in FIGS. 5 and 6A, the tension wire 16 from the second member 15 returns to the first member 14x again and is connected to the first member 14x.

  As shown in FIG. 5, the wire tension adjusting device 10x configured as described above is provided between the float 11 and the first member 14x by manually pulling up the tension wire 16 or winding it up with a winch or the like. The tension wire 16 is drawn toward the float 11 side. Next, the tension wire 16 between the first member 14x and the second member 15 is drawn toward the first member 14x. Next, the tension wire 16 between the folded second member 15 and the first member 14x is drawn toward the second member 15 side. Since the wire 12a connected to the anchor 12 is connected to the second member 15, the distance between the anchor 12 and the second member 15 is not reduced. Accordingly, the first wires 14x are drawn toward the second member 15 to tension the course wires W1, W2.

Since the first member 14x is connected to the water depth setting wire 13 depending from the float 11, the water depth set by the water depth setting wire 13 when the first member 14x is drawn toward the second member 15 side. Thus, the first member 14x is drawn. Therefore, the wire tension adjusting device 10x is not bulky compared to the spacer of the floating wire adjusting device described in Patent Document 1 because the water depth setting wire 13 is formed of a wire. Also, the wire tension adjusting device 10x
Since the first member 14x and the second member 15 are pulleys, and the others are ropes and wires, there are no long or wide members, so that they are not transported, installed, or stored. It is easy to handle.

  Moreover, since the tension | tensile_strength wire 16 is wound around the 1st member 14x and the 2nd member 15, the pulley of the 2nd member 15 functions as a fixed pulley, and the 1st member 14x functions as a moving pulley. Accordingly, the tension wire 16 may be pulled up from the float 11 with 1/3 of the force that tensions the course wires W1, W2. Accordingly, the wire tension adjusting device 10x can smoothly and easily adjust the tension of the course wires W1 and W2 with a small force, so that the installer manually pulls the tension wire 16 without using a winch. The course wire W1, W2 can be tensioned by pulling it up from the main float 11.

(Embodiment 3)
A wire tension adjusting device according to a third embodiment of the present invention will be described with reference to the drawings. 7 and 8, the same components as those in FIGS. 5 and 6 are denoted by the same reference numerals, and description thereof is omitted.
As shown in FIG. 7, in the wire tension adjusting apparatus 10y according to the third embodiment, the first member 14y and the second member 15y each have two pulleys. The two pulleys are arranged one above the other.

  First, the tension wire 16 wound around the first member 14y and the second member 15y is moved from the float 11 to the first pulley (the pulley 14m) of the first member 14y shown in FIG. It is hung around. Next, the tension wire 16 is hung from the first pulley (the pulley 14m) of the first member 14y to the first pulley (the pulley 15m) of the second member 15y shown in FIG. 8B. The Next, the tension wire 16 is changed from the first pulley (the pulley 15m) of the second member 15y shown in FIG. 8B to the second pulley (the pulley 15m of the first member 14y shown in FIG. 8A). Pulled around pulley 14n). Next, the tension wire 16 is changed from the second pulley (the pulley 14n) of the first member 14y shown in FIG. 8A to the second pulley (the pulley 14n of the second member 15y shown in FIG. 8B). Wrapped around pulley 15n). And the tension | tensile_strength wire 16 is the 1st member 14y toward the 1st member 14y shown in FIG. 8 (A) from the 2nd pulley (pulley 15n) of the 2nd member 15y shown in FIG. 8 (B). Connected at.

  Since the first member 14y is connected to the water depth setting wire 13 that hangs down from the float 11, the water depth is set when the first member 14y is drawn toward the second member 15 side. The first member 14y is drawn at a water depth set by the wire 13 for use. Therefore, the wire tension adjusting device 10y is not bulky compared to the spacer of the floating wire adjusting device described in Patent Document 1 because the water depth setting wire 13 is formed of a wire. Further, in the wire tension adjusting device 10y, since the first member 14y and the second member 15y are pulleys and the others are ropes and wires, there are no members that are long and cannot be bent or members that are wide. Therefore, handling is easy during transportation, installation and storage.

  Further, the tension wire is alternately wound around one or more pulleys of the first member 14y and one or more pulleys of the second member 15y, and the end of the tension wire 16 is connected to the first member 14y. By being connected, the force of the tension wire 16 pulled up from the float 11 can be reduced to ¼. Therefore, the installer can easily pull up the tension wire 16 from the main float 11 and tension the course wires W1 and W2 without using a winch.

In the wire tension adjusting device 10y according to the third embodiment, each of the first member 14y and the second member 15y has two pulleys, but the second member has one pulley (that is, It is good also as the 2nd member 15 (refer FIG. 2) of Embodiment 1. FIG. In that case, the end of the tension wire 16 is connected by the second member 15.
Further, the second member 15y can be two pulleys, and the first member can be three pulleys. In this case, the end of the tension wire 16 is connected by the second member 15y by being wound around the third pulley of the first member. Further, the number of the first member and the second member may be three or more.

That is, if the number of second members is N (where N is an integer equal to or greater than 1), the number of first members can be N or N + 1. The tension wire 16 is alternately wound around these pulleys. The end of the tension wire 16 is connected to the first member when the first member is N pulleys, and the second member when the first member pulley is N + 1 pulleys. Connected to.
Thus, if the first member and the second member have the same number of pulleys, the tension wire 16 is fixed on the first member side, and the second member pulley is one less than the first member pulley. Is fixed on the second member side.

  By increasing the number of pulleys included in the first member and the second member, the tension wire 16 can be further wound with a small force.

  The wire tension adjusting devices 10x and 10y according to the second and third embodiments tension the course wires W1 and W2 as the to-be-tensioned wires, but similarly to the wire tension adjusting device 10 according to the first embodiment. As a to-be-tensioned wire, it may be connected to the horizontal wire W3 shown in FIG. 4 to tension the horizontal wire W3.

  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.

DESCRIPTION OF SYMBOLS 100 Boat course 10,10x, 10y Wire tension adjustment apparatus 11 Float 11a Fastening part 12 Anchor 12a Wire 13 Water depth setting wire 14, 14x, 14y First member 14m, 14n Pulley 15, 15y Second member 15m, 15n Pulley 16 For tension Wire rod 17 Water depth setting weight 18 Kink preventing float 19 Kink preventing weight 20 Connector W1, W2 Course wire W3 Horizontal wire V1 Outer buoy V2 Distance display buoy V3 Boundary buoy F Goal flag S Water surface

Claims (6)

In a wire tension adjusting device that tensions a to-be-tensioned wire disposed in water,
A float that floats on the surface of the water,
With anchor anchored,
A wire for setting water depth depending from the float;
A first member connected to the wire for setting water depth and the to-be-tensed wire;
A second member connected to the anchor;
A tension wire that tensions the to-be-tensed wire by pulling up from the float;
The first member includes N (where N is an integer equal to or greater than 1) or N + 1 pulleys,
The second member includes N pulleys ,
The tension wire is hung on the pulley of the first member from the float, and is then hung on the pulley of the second member, and is alternately hung on the first member and the second member. ,
The end of the tension wire is connected to the first member when the number of pulleys of the first member is N, and to the second member when the number of pulleys of the first member is N + 1. Wire tension adjustment device. Wire tensioning system according to claim 1, wherein the front Symbol plurality of pulleys are arranged so as to line up vertically. Wherein the first member, the wire tensioning device according to claim 1 or 2, wherein a depth setting weight is provided. The wire tension adjusting device according to any one of claims 1 to 3 , wherein the second member is provided with one or both of a kinking prevention float and a kinking prevention weight. The wire tension adjusting device according to any one of claims 1 to 4 , wherein the to-be-tensioned wire is a course wire that divides each course. The wire tension adjusting device according to any one of claims 1 to 5 , wherein the to-be-tensioned wire is a horizontal wire that traverses each course.

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