JPH10273091A - Anchor traction jig - Google Patents

Abstract

PROBLEM TO BE SOLVED: To smoothly pull up an anchor by pulling the anchor from the root of the anchor main body, when the anchor is pulled up. SOLUTION: A traction jig A is interposed between a pulling rod 2 of an anchor L and a towing rope (a) from a vessel. The vessel is stayed by the towing rope (a) via the jig A when the vessel is stayed off the coast. When the anchor is pulled up, the towing rope (a) is pulled, but the anchor L becomes difficult to move because it catches a rock. When pulling force becomes a required value or more, the engagement element 22 (locking ring 21) of the jig A is disengaged from a block 19 and pulling force of the towing rope (a) is transmitted to the root of the anchor L via a pulling up rope (b). Because this method for pulling the anchor L is to pull up the root, also the anchor L is easy to be pulled up. A disengagement means of the engagement element 22 performs the disengagement by extracting the engagement element 22 from a hole 20 by pulling the block 19 from a cylindrical body 10 against a spring when a value becomes a prescribed value or more. The prescribed value is adjusted by a nut 17a.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an anchor pulling jig in an anchor structure of a small boat such as a fishing boat.

[0002]

2. Description of the Related Art In order to stop fishing at a required point and enjoy fishing, a fishing boat lowers an anchor from the boat S and bites into the seabed, thereby suppressing the sway of the boat and preventing flow by wind. That is, this anchor structure
Referring to FIG. 1 according to the present invention, it is general that an anchor L (see FIG. 3) attached to a towing line a from a ship S is released into the sea and bites into the sea floor G. The lifting of the anchor L is performed by striking the towing line a.

As shown in FIGS. 1 to 3, this anchor L is provided with a pulling rod 2 extending toward the front side of the anchor main body 1 at the root of the anchor main body 1 that cuts into the seabed G. A structure for connecting the cable a is common.

[0004] In this structure, when the anchor L is pulled up, the pulling rod 2 must be pulled by a considerable force to set the anchor body 1.
However, there is a case where the anchor body 1 does not fall out of the sea floor and is not able to come off at all in a rocky place. In this case, the anchor must be left alone, leading to marine pollution.

For this reason, conventionally, a tow jig A is interposed between the tow rod a and the tow line a so that the anchor L can be pulled up even when the torch cannot be removed by the attraction force from the tow rod 2. From the towing jig A to the base of the anchor main body 1, the pulling rope b is guided and locked, and the towing jig A releases the connection with the pulling rod 2 when the pulling force of the towing rope a exceeds a required value. Many techniques have been proposed for transmitting the attractive force to the pulling rope b. For example, there are those described in JP-A-63-31892, JP-A-63-284092, JP-A-8-40353 and the like.

In each of these known techniques, the above-mentioned required value is set to a value slightly higher than the attractive force required for mooring the ship S offshore and the like. When the tow line a is pulled by the towing jig A,
The towing line a and the pulling rod 2 are separated, and the towing line a exerts an attractive force on the pulling line b to pull the root of the anchor body 1. Since the pulling force of the root acts in the direction in which the anchor body 1 is lifted, the anchor body 1 can escape from the seabed and be pulled up.

[0007]

The setting of the predetermined value in each of the above-mentioned prior arts is performed by a spring or a cutting pin, and the adjustment requires the replacement of the spring or the pin itself. In addition, since it is composed of a simple structure such as a ring forming the towing jig A, its operation is not stable, and the towing line a and the tow rod 2 are separated during mooring and the anchor L is pulled out. Had occurred.

A first object of the present invention is to stabilize the traction action, and a second object is to make it possible to easily adjust the predetermined value.

[0009]

In order to achieve the first object, the present invention provides a piston which is connected to the pulling rod or tow cord at one end, and which protrudes from the piston to the other end. An operating rod is provided, and a locking block is provided at a protruding end of the operating rod so as to be able to be inserted into and retracted from the cylindrical body. An engaging element connected to the towing line or the pulling rod is removably fitted to the locking block. A round engaging hole is formed, and the locking block always enters the cylindrical body by a spring that biases the piston, the engaging hole is covered by the cylindrical body, and the engaging element cannot be disengaged. When the pulling cable exerts more than required pulling force and the piston moves the required length against the spring, the engaging hole is opened to the extent that the engaging element comes out of the cylinder and the engaging element is detached. (Claim 1).

[0010] The pulling force of the tow rope, which allows the piston to move for a required length, is set to the above-mentioned predetermined value. Can get off the seabed smoothly.

According to another aspect of the present invention, a spring seat is provided on the cylindrical body through which the operating rod passes so as to be movable in the axial direction of the cylinder. A pin protruding from the seat to the outer surface of the cylinder is provided, and a long hole in the cylinder axis direction in which the pin moves is formed in the cylinder, and a nut is screwed into the outer surface of the cylinder. A configuration is adopted in which the pin can be brought into contact with the nut, and the contact position of the pin can be adjusted according to the position of the nut (claim 2). With this configuration, the predetermined value can be adjusted by adjusting the position of the nut, which can correspond to the state of the seabed.

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS First, the anchor L will be described.
As shown in FIG. 3, a bearing 3 is provided upright at the base of a triangular plate-shaped main body 1, and a bearing block (not shown) is rotatably provided on the bearing 3 via a shaft 4. The L-shaped swinging piece 5 of the pulling rod 2 is fixed to the arm. For this reason, the pulling rod 2 can be easily stored by falling down as shown by a chain line. When the pulling rod 2 rises up as shown by a solid line, the end of the swinging piece 5 comes into contact with the bearing 3 (main body 1) and further rotation is performed. Will be blocked. That is, the pulling rod 2 is fixed in a state of standing up to the anchor main body 1 at a required angle, and in this state, being pulled by the towing line a, the anchor main body 1 bites into the seabed G.

Next, the towing jig A will be described.
As shown in FIG. 1 to FIG.
1 is provided, and the towing line a is fastened to the suspension ring 11. A piston 12 and a spring seat 13 are provided inside the cylinder 10 so as to be movable in the cylinder axis direction.
The operating rod 14 is moved from the spring seat 1 toward the other end of the cylindrical body 10.
3 extend through. A pin 15 is screwed into the receiving seat 13, and the pin 15 is slidably fitted in the long hole 16 of the cylindrical body 10. Also, a tension adjusting nut 17a and a fixing nut 17b are screwed into the outer surface of the cylindrical body 10,
The contact of the pin 15 with the adjustment nut 17a prevents further movement of the seat 13. Adjustment nut 17
a is fixed by screwing the fixing nut 17b. The nuts 17a and 17b are prevented from falling off by the retaining ring 23.

A coil spring 18 is provided between the piston 12 and the receiving seat 13, and is provided with the adjusting nut 17a.
The piston 12 is urged toward one end of the cylindrical body 10 at the position of the receiving seat 13 determined by the above. Therefore, the piston 12
In the adjustment position, the tension on the operating rod 14 acts on the spring 18 and contracts.

An engagement block 19 is screwed to the tip of the operating rod 14, and the block 19 can freely protrude and retract at the other end of the cylindrical body 10. A locking hole 20 is formed in the block 19, and an engaging element 22 of a locking ring 21 is formed in the locking hole 20.
Are fitted. Usually, most of the blocks 19 enter the cylindrical body 10 as shown in FIG.
The opening 19 is opened to the extent that the engaging element 22 cannot be pulled out, and the movement of the locking ring 21 causes the block 19 to protrude from the cylindrical body 10 as shown in FIG. Then, the engagement element 22 comes out of the opening and is released. At this time, the notch 2 through which the rod 22a of the engaging element 22 passes
The reference numeral 0b denotes a width through which the engaging element 22 cannot pass, and the engaging element 22 is pulled out by sliding the engaging element 22 on the slope 20a of the locking hole 20.

This embodiment is configured as described above. Next, the method of use will be described. First, as shown in FIG. 5, within the traction force of the windlass (winch) of the own ship S or within the traction force of other means. And the engaging element 22 is the block 1
Turn the adjustment nut 17a so as to disengage it from
Determine the position of.

Thereafter, as shown in FIGS. 1 to 3, the ship S
To the hanging ring 11 and the locking ring 21 is locked to the pulling rod 2 of the anchor L. Further, the lifting cable b is provided between the root of the anchor L and the suspension ring 11 of the towing jig A with a margin. In this state,
As shown in FIGS. 1 and 2, release the anchor L into the sea,
It penetrates into the seabed G and performs an anchoring action. In FIG. 1, the anchor L and the towing jig A are drawn relatively large with respect to the boat S.

At the time of raising the anchor L, if the towing line a is pulled by a winch or the like, the pulling force usually exceeds the biting force of the anchor L, and the anchor L can be separated from the seabed G and collected.

However, if the anchor body 1 does not slip out of the seabed G by the gravitational force via the pulling rod 2 when the anchor body 1 digs into the rock at a rocky place, etc. As shown in FIGS. 4 and 5, the piston 12 moves against the spring 18 due to the attractive force, the block 19 protrudes from the cylindrical body 10, and the engaging hole 20 is opened greatly before long. Like, engaging element 2
2 is separated from the block 19, and the pulling jig A and the pulling rod 2 are separated.

Then, the gravitational force of the towing line a is transferred to the pulling line b, and the gravitational force acts on the root of the anchor body 1 as shown by the chain line in FIG. Thus, the anchor L is collected.

Note that, contrary to the above embodiment, the suspension ring 11
The same effect can be obtained by connecting the lock ring 21 to the pulling rod 2 side and the locking ring 21 to the towing line a side.

[0022]

The present invention is constructed as described above, and does not unnecessarily release the lock with the pulling rod when mooring.
On the other hand, when the anchor is raised, the anchor can be reliably pulled from the root side, so that the anchor can be easily pulled up even in a rocky place without hindering mooring.

[Brief description of the drawings]

FIG. 1 is a diagram illustrating an operation of an embodiment.

FIG. 2 is an enlarged view of a main part of the embodiment.

FIG. 3 is a perspective view of a main part of the embodiment.

FIG. 4 is a cross-sectional view of the traction jig of the embodiment during one operation.

FIG. 5 is a sectional view of the towing jig during another operation.

[Explanation of symbols]

 Reference Signs List A anchor pulling jig L anchor S ship a towing rope b pulling rope 1 anchor main body 2 pulling rod 5 rocking piece 10 anchor pulling jig cylinder 11 hanging ring 12 piston 13 spring seat 14 operating rod 15 pin 16 long hole 17a adjusting nut 17b fixing nut 18 spring 19 engaging block 20 engaging hole 21 locking ring 22 engaging element

Claims (2)

[Claims] At the base of an anchor body that bites into the seabed, a pull rod 2 is provided extending to the front side of the anchor body 1, and the pull rod 2 is connected to a towing line a from a ship S via a tow jig A. The pulling jig A is guided from the towing jig A to the root of the anchor body 1 and locked. When the attraction of the towing jig a exceeds a required value, the towing jig A is pulled. With the lifting cable b
The anchor pulling jig in the anchor structure for transmitting to the pulling rod 2 or the pull cord a at one end.
A piston 12 and an operating rod 14 protruding from the piston 12 to the other end side are provided therein, and a locking block 19 is provided at the protruding end of the operating rod 14 so as to be able to protrude and retract into the cylindrical body 10. The engaging hole 2 into which the engaging element 22 connected to the towing line a or the pulling rod 2 is detachably fitted in the block 19.
0, and the locking block 19 always enters the cylinder 10 by the spring 18 for urging the piston 12, the engaging hole 20 is covered by the cylinder 10,
When the piston 12 moves a required length against the spring 18 due to a pulling force of a required value or more acting on the towing line a, the engaging hole 20 is moved from the cylindrical body 10 to the engaging element 22. An anchor pulling jig, wherein the engaging element 22 is detached by opening to such an extent that the engaging element 22 comes off. 2. A spring seat 13 through which the operating rod 14 penetrates is provided in the cylindrical body 10 so as to be movable in the cylinder axis direction, and the spring 18 is interposed between the seat 13 and the piston 12. A pin 15 protruding from the seat 13 to the outer surface of the cylindrical body 10 is provided.
6 and a nut 17a is formed on the outer surface of the cylindrical body 10.
2. The screw is screwed into the nut 17a so that the pin 15 can be brought into contact with the nut 17a, and the contact position of the pin 15 can be adjusted by the position of the nut 17a.
Anchor traction jig as described.