JP2007308129A - Easily removable anchor - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an easily removable anchor, relieving concern that an anchor is not released from obstacles and saving labor to release the anchor from the obstacles, preventing breakage or loss of the anchor, allowing a floating body with small buoyancy such as a rubber boat to use the anchor regardless of conditions of the bottom of the sea, and easy to be transported or stored, and easy to be removed. <P>SOLUTION: The inside of a main shaft of the anchor is cylinder structure to constitute a hydraulic pump, so that a load on the anchor is absorbed by the pump and a spring. Suction and discharge ports are formed at positions in the cylinder likely to be instantaneously filled with seawater, after throwing the anchor in water. Claws can be folded toward the main shaft, and are turned by using their root parts as fulcrums. When the claws are folded, tips of claws are held by a claw holder attached to the main shaft. Though the claws are folded when the anchor is released from the obstacles, the claws are restored to be in a standing state by bounce of the spring in the cylinder after the release. The anchor can be disassembled for facilitating maintenance of the inside of the cylinder or structure part. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

TECHNICAL FIELD The present invention relates to a “raft structure” that is used for anchoring a ship in a place where there is an obstacle such as a reef or fishing reef on the seabed.

Conventionally, in the case of a claw with a fixed claw, the front part of the heel and the leash are connected with a string, and when the load is higher than a certain level, the front part of the string is cut and connected to the tip of the heel ( It has been devised so that the wrinkles are off.
If you don't do that, you will either try to lift the kite forcibly, break the kite, or cut the kite and abandon it to the seabed.
In order to solve this problem, patents have been filed for other types of hooks that break the nail, but because there is no “setting structure of the hydraulic pump of the present invention”, the hull is subjected to a large wave and a powerful load instantly. There is an inconvenience that the nail is broken and the heel is unintentionally detached when the heel is caught on the heel.
When the rope is stretched for a long time, the slack can absorb a sudden load to some extent, but when the water depth is shallow and the rope is used for a short time, there is a problem that it acts directly on the kite and the kite comes off.
In addition, the structure of the other nail-folding jars of other patent applications is complicated, and there is a high probability that mud in the bottom of the water flows into the jar and causes structural failure.

Problems to be solved by the invention

(1) Resolve the difficult problem that hail pulling out of the reeds and reefs under the seabed.
The invention can be easily removed from the hook by simply pulling the kite on the ship.
(2) A lightweight ship such as an inflatable boat solves the problem that the boat body sinks when raising the anchor. → It is possible to raise the kite by pulling continuously with weak human power.
(3) At the same time, the problem that the kite that has come off from the hook is caught on the obstacle again during the lifting is solved.
(4) Eliminate the bulky inconvenience when carrying a bag. → Claw folding type.

Means for solving the problem

(1) The inside of the main shaft of the rod is made into a hydraulic pump with a Linder structure, and the load on the rod is absorbed by both the pump and the spring.
(2) After the dredger is dropped into the water, a suction / drain hole is provided at a position where the cylinder is easily filled with seawater instantly.
(3) The claw can be folded forward and rotates with the root portion as a fulcrum.
(4) When the nail is folded, hold the nail tip with a nail holder attached to the main shaft.
(5) When the hook is removed from the hook, the claw is broken, but after the claw is released, the claw returns to the restored standing state by the repulsive force of the spring in the cylinder.
(6) A disassembly type is used to facilitate maintenance of the inside of the cylinder and the structural part.

The invention's effect

(1) The anxiety and labor that the dredging dropped when anchoring a ship in a place with fishing reefs or reefs on the seabed (a place where many fish live) will be removed from the obstacles.
(2) Eliminates damage and loss of wrinkles.
(3) Even a floating body with a small buoyancy, such as an inflatable boat, can use dredging regardless of the state of the seabed.
(4) Because it is foldable and small and light, it is easy to transport and store.

いる。
潮流の強弱はスプリングの強度調整（交換）で対応可能となる。Hereinafter, embodiments of the invention will be described with reference to the drawings.
When the haul rope is continuously pulled by the power of the ship for several seconds, the root part of the anchor arm (▲ 9 ▼) pushes up the center shaft (▲ 8 ▼) by the lever principle and enters the cylinder from the water absorption hole (b). The filled water is gradually drained from the drain hole, and the tip of the anchor arm (9) gradually folds downward.
When the arm breaks 90 degrees or more with respect to the center column (2), the heel is removed.
In the case of a natural event where a sudden and powerful load due to a large wave acts on the dredging, the drainage hole should be minimized.

Yes.
The strength of the tidal current can be handled by adjusting (changing) the spring strength.

  Front view

Explanation of symbols

Explanation of symbols in Fig. 1 (1) Eyebolt Parts that connect the rope (2) Center column Plays the role of the main column of the kite and the outer wall of the pump cylinder.
(3) Anchor spring It absorbs the load applied to the anchor arm and plays a role in restoring and restoring the arm.
(4) Center shaft pin The role of connecting the center shaft and the piston part. (5) O-ring It keeps the inside of the cylinder airtight and prevents water leakage and increases the pump capacity.
(6) Center shaft spacer Plays the role of supporting the maintenance and sliding of the center shaft.
(7) Center shaft guide It plays the role of facilitating the sliding of the center shaft.
(8) Center shaft Acts as a piston rod. (9) Anchor arm A claw that traps seabed obstacles.
▲ a ▼ Drain hole Hole into which the seawater flows into the cylinder when the dredge is thrown into the water ▲ b ▼ Water absorption hole Hole to discharge the seawater in the cylinder when the arm breaks (Note) Attached reference photo This is a front photo of a cocoon (opened and folded) produced by this drawing for the purpose of confirming the efficacy and results of the test.

Claims (1)

The main pillar of the kite has a “water pressure pump and spring built-in”, and by applying its characteristics, a kite that can be easily removed from obstacles has been devised.
Claims are made on the water pump characteristics of the water bottle and the structure on which the spring is applied.
・ Supplementary explanation about structure and function is as follows.
(1) Easily detached dredging structure means that when the haul rope is pulled continuously for a certain period of time (several seconds) by ship power or human power, the seawater filled in the pump is gradually drained and the dredge claws gradually break It becomes.
The hook is released from the hook when the hook has an angle of more than 90 degrees with respect to the main shaft.
Even if a momentary and powerful load due to a ship swaying due to a wind wave or other natural phenomenon acts on the dredging, the dredging will not come off due to the function of the internal water pump, and only when it is continuously and intentionally towed The structure is off.
(2) The broken claws are automatically restored by the repulsive force of the spring, and the function as a heel is restored.
(3) By reducing the spring in the cylinder and reducing the size and weight of the rod, it is possible to produce a “boat that can be removed by manual traction” for rubber boats that do not have power.
(4) Equipped with a “foldable function” that is convenient to carry and maintain.
(5) The material constituting the ridge is made of stainless steel, which has excellent corrosion resistance, in key areas.
(6) The drawing of this application uses three nails to reduce manufacturing costs, but four products can be manufactured with the same nail structure due to the effectiveness and design of the heel.
(The attached drawing is a three-claw kite with a picture of the finished product attached)

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