JPS6331892A - Anchor device for ship - Google Patents

Abstract

PURPOSE:To make the pulling up of an anchor easy by attaching the anchor so that its rear end may take its position nearer to the lower end of a loop shaped rope than a middle between the lower end of said rope and a locking device to lock said lower end. CONSTITUTION:An anchor is sunk into water on such conditions that a rope 12 whose one end is fixed to a locking device 14 is looped over a shank 52 through guides 66, 68, 70, and an eye part 16 at the lower end of the rope 12 is locked on the hook member 58 of said locking device 14, and moreover a stopper 72 keeps the side of the shank 52 under tension. In pulling up the anchor, when a weight 20A is made to fall along the rope 12 from a board, a lock lever 60 rotates counterclockwise to release the hook member 58 from itself, and the eye 16A becomes therefore free. When the rope 12 has been pulled up then, the eye 16A is locked by a ring 70, and the anchor 18 is pulled up from its tip side with a nail 50 facing downward. The nail caught by a rock or the like therefore easily leaves it, and thereby the anchor can be simply pulled up.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to an anchor device for preventing movement of a ship.

(Background of the Invention) Ship anchors obtain a large gripping force by setting their claws in mud, sand, or rocks at the bottom of the water. However, with anchors that obtain holding power by setting their claws on rocks, the claws may be difficult to remove from the rock when the anchor is pulled up. In addition, with anchors that obtain holding power by standing their claws in mud or sand, in order to obtain a large holding force, it is necessary to have a structure that grips a large amount of mud or sand. A problem arises in that a large amount of force is required.

To solve this problem, Utility Model Registration Application No. 50-135965 (Utility Model Application No. 52-49493) proposes the system shown in Fig. 14.15. In this figure, reference numeral 1 is an anchor, and a circular hole 5 with a notch 4 is provided at the rear end of the shank 2 on the side opposite to the claw 3, and a rotatable locking piece 6 is provided in the circular hole 5. A rope 8 is connected to a rotating piece 7 that is made integral with the locking piece 6, and the rotating piece 7 is connected to the tip of the shank 2 on the claw 3 side with a chain 9 or the like. It is something.

Therefore, in this device, when the anchor 1 is pulled to the left in FIG. 14 by the rope 8, the force of the rope 8 is applied to the rear end of the shank 2 via the rotating piece 7. When pulling up the anchor 1, move the hull and align the rope 8 and the hooking piece 6 of the rotating piece 7 with the notch 4 of the circular hole 5.
to escape from. As a result, the force of the rope 8 is applied to the tip of the shank 2 via the chain 9 in the direction of lifting the claw 3, and the claw 3 is pulled upward from the bottom of the water.

The anchor 1 can be pulled up with a small force.

However, with this conventional device, when pulling up the anchor 1, it is necessary to move the ship's body considerably. It may not be possible to move the Therefore, there is a problem in that the functions of this device may not be available. Further, if the position of the ship changes due to changes in the tidal current due to ebb and flow of the tide, the rotating piece 7 may unexpectedly escape from the notch 4 when the ship is moored. For this reason, there was a problem with reliability.

On the other hand, there is also a method in which the lower end of the rope is tied to the tip of the shank on the claw side, and the rope is tied with another weak rope to the rear end of the shank on the side opposite to the claw.
-36993), etc. This anchor is designed so that when the anchor is stuck in a rock or the like and cannot be removed, the rope is pulled strongly upwards from the ship, the weak rope section is cut, and the anchor is pulled up from the tip side.

However, in this case, there is a possibility that the weak rope section may break unexpectedly during stormy weather, resulting in a weakening of the holding power.

(Purpose of the Invention) The present invention was made in view of the above circumstances, and has the object of: Even if the claw of the anchor is stubbornly wedged into the rock at the bottom of the water, the claw will easily come off the rock when the anchor is pulled up. In addition, even if the anchor is structured to grasp a large amount of mud or sand to obtain a large holding force on the muddy or sandy bottom, the anchor can be pulled up with a light force, and furthermore, the anchor can be pulled up against rocks on the waterbed. An object of the present invention is to provide an anchor device for a ship that does not come off.

(Structure of the Invention) According to the present invention, the object is to provide a latching device that is provided in the middle of a rope and that folds back the lower end of the rope in a loop shape and latches it in a removable manner, and an intermediate point between the latching device and the lower end of the rope. and an anchor installed below the position so that its claw side tip is located on the latching device side and its rear end on the opposite claw side is located on the lower end side of the rope, and the lower end of the rope is hung on the latching device. This is achieved by an anchor device for a ship, characterized in that, while stopping the anchor and sinking the anchor, the lower end of the rope is released from the latching device from onboard the ship and the anchor is pulled up from the tip on the claw side.

That is, when the ship is moored, the anchor is pulled from the rear end side of the anchor shank to obtain holding power, while when the anchor is pulled up, the anchor is pulled from the tip of the claw side of the shank.

(Example) FIG. 1 is a diagram explaining the principle of the present invention, and the principle will first be explained based on this diagram. In this figure, numeral 10 is a boat and 12 is a rope. A latching device 14 is provided on the rope 12 above its lower end (preferably 3 m or more). An annular eye 16 is provided at the lower end of the rope 12. Therefore, the rope 12 is folded back into a loop shape and is removably latched to the latching device 14. This latching device 14 will be described later.

An anchor 18, for example, a pine mushroom type anchor, is attached to the rope 12 in an opposite direction below the intermediate position between the lower end of the rope 12 and the latching device 14.

That is, the anchor 18 is attached so that the tip on the hook side is located on the side of the latching device 14 and the rear end on the side opposite to the hook is located on the lower end side of the rope 12. Although it is preferable that the anchor 18 is slidably attached to the rope 12 below the intermediate position, here, for simplicity of explanation, the anchor 18 is attached to the rope 12 in a slidable manner.
We will explain the case where it is fixed to .

The anchor device configured in this way can be submerged in water by hooking the eye 16 to the hooking device 14 (see Fig. 1(A)).
), and if the rope 12 is let out as it is, the anchor 18 will reach the bottom of the water, and will bite into the rock, mud, or sand at the bottom of the water, generating a holding force (see Figure (B)). Escape the eye 16 from the latching device 14. For example, a structure can be considered in which a weight 20 is engaged with the rope 12 from onboard the ship and dropped along the rope 12, and the eye 16 is detached by colliding the weight 20 with the latching device 14 (FIG. 1(C)). . and rope 1
When the anchor 18 is hoisted onto the ship, the anchor 18 will be pulled upward from its claw side (see figure (D)).As a result, the claw that is stuck in the rock will easily escape from the rock, and a large amount of The anchor 18 that has grabbed the mud and sand will be pulled up while discharging the mud and sand.

Next, a first embodiment of the anchor 18 and the latching device 14 will be described with reference to FIGS. 2-5. In this embodiment, the anchor 18A is of the known Danforth type, and the shank 52 is swingable within a predetermined range with respect to the pawl 50.

As shown in FIG. 4.5, the latching device 14A has a substantially inverted main body 54 forming a twisting mechanism 53 for the rope 12;
The main body 54 has a substantially U-shaped hook member 58 rotatably connected to the lower part of the main body 54 with a pin 56, and a lock lever 60 with which the upper end of the hook member 58 engages. That is, a recess 62 is formed at the upper end of the main body 54 , and the rotating end of the hook member 58 engages with the recess 62 to restrict the swinging of the hook member 58 in a direction parallel to the pin 56 . In the inserted state, the engagement hole at one end of the lock lever 60 is engaged with the tip of the hook member 58 to lock the hook member 58. A long hole 64 is formed at the other end of the lock lever 60, and the rope 12 above the return mechanism 53 is inserted through this long hole 64. Further, this lock lever 60 is provided with a torsion spring (not shown).
In the figure, a clockwise rotational return habit is given.

The portion of the rope 12 below the latching device 14A is
As shown in the figure, its lower end is attached to the hook 5 of the anchor 18A.
The eye 16A is inserted into the engagement hole 66 provided at the tip on the zero side, and through the guide 68 and ring 70 provided at the rear end of the shank 52 on the side opposite to the claw, and then the eye 16A is fixed to the lower end of the rope 12.

Note that this eye 16A also functions as a stopper for engaging the lower end of the rope with the rear end of the anchor 18A on the side opposite to the claw when the anchor 18A is pulled up, and is made sufficiently large so that it cannot pass through the ring 70.

The rope 12 has a lower part than the latching device 14A.
The stopper 72 is fixed so as to be located on the lower end side than the middle position of the length, and the anchor 18A is movable with respect to the rope 12 only between the stopper 72 and the eye 16A.

The weight 20A is divided into two pieces as shown in FIG. 5, and can be attached to and detached from the rope 12 using a lock 74.

Therefore, when this embodiment is used as shown in FIG. 1, the eye 16A is hooked onto the hook member 58 and sunk to the bottom of the water, as shown in FIG. At this time, the anchor 18A is restricted from moving downward by the stopper 72. When lifting the anchor 18A, a weight 20A is attached to the rope 12 from the ship.
Attach it to and drop it. Weight 20A is lock lever 60
Upon contact, the locking lever 60 rotates counterclockwise in FIG. 4.5 and the hook member 58 also releases the locking lever 60. Eye 16A is therefore removed from hook member 58. Therefore, when the rope 12 is pulled up, the anchor 18A is pulled up from its tip side with the eye 16A locked to the ring 70 as shown in FIG.

According to this embodiment, since the eye 16A is integrally engaged with the anchor 18A at the time of retrieval, it is also possible to obtain the effect that the eye 16A does not get caught on rocks at the bottom of the water.

FIG. 6 is a perspective view of the second embodiment, and FIG. 7 is a diagram showing its usage state. The anchor 18B of this embodiment includes a shank 100 whose distal end is bifurcated, and this shank 100.
A pair of U-shaped claws 102, 102 that open from the tip to both sides, and claws 102, 102 to which the opening edges are fixed to the claws 102.
It also includes a bag 104 that opens and closes at the same time. The rope 12 passes its lower end through the inside of the bag 104 from the bottom of the bag 104, and then passes through the guide hole 106 of the shank 100 to the eye 16B at the lower end.
is fixed. Also, the rope 12 has a shank 1.
A stopper 108 is fixed between the bag 104 and the bag 104.

In this embodiment, when the anchor 18B is sunk to the bottom of the water, the claw 102 is closed and the special equipment 104 is folded between the claws 102, 102, as shown in FIG. 7(A). When it reaches the bottom of the water and pulls the rope 12, the claw 102 automatically opens the bag 1 by the mud or sand on the bottom, as shown in FIG. 7(B).
04 Mud and sand get inside. Therefore, the anchor 18B becomes sufficiently heavy and generates a large holding force. Also, when lifting, the stopper 108 engages with the bottom of the bag 104, and the anchor 1
8B is pulled up from the bottom of the bag 104 as shown in FIG. 7(C). Therefore, the mud and sand inside the bag 104 are discharged, and it becomes possible to lift the bag 104 with a light force.

FIG. 8 is a side view of the third embodiment, and FIG. 9 is a diagram showing the same at the time of hoisting. In this embodiment, the present invention is applied to a folding anchor 18G. That is, a plurality of claws 152 are attached to the tip of a cylindrical shank 150 so as to be openable and closable.
There is a stopper 154°1 for opening and closing this claw 152.
56 is fixed.

Therefore, as shown in FIG. 8, if the eye 16 is hooked to the hooking device 14 and the anchor 18C is sunk to the bottom of the water and pulled, the stopper 154 will force the claw 152 to open! , the claws 152 bite into rocks and the like to provide a large gripping force. If the eye 16 is released from the locking device 14 when the anchor 18C is lifted, the stopper 156 forces the claw 152 to close. Therefore, it becomes possible to easily pull up the anchor 18C.

FIG. 10 is a perspective view of the fourth embodiment, and FIG. 11 is a diagram showing the same when being salvaged. In this example, watermelon anchor 18D
is used, and the rope 12 is fixed to the shank 200 of this anchor 18D. Therefore, since the anchor 18D does not move relative to the rope 12, the structure becomes very simple. Since the operation is clear from the above explanation, it will not be repeated.

FIG. 12 is a partially sectional front view of another embodiment of the latching device, and FIG. 13 is a right side view. Latching device 1 of this embodiment
4B includes a substantially cylindrical main body 170 attached via a return mechanism to the lower end of the rope 12a connected to the hull, a fixing hook 172 integrally molded at the bottom of this main body 170, and a pin 174 at the bottom of the fixing hook 172. A movable hook 176 rotatably connected to the main body 170, a lock rod 178 movable in the axial direction on the central axis of the main body 170, and a coil spring 180 that biases the lock rod 178 upward, that is, toward the rope 12a. A lock claw 184 is installed at the bottom of the lock rod 178 and engages and disengages from an engagement hole 182 provided at the rotating end of the movable hook 176,
8 is provided with a lever-shaped lever 186 which is swingably connected with a pin near the center of the lever 8. The coil spring 180 comes into contact with this scale-shaped lever 186 from below and urges the lock rod 178 upward. Both ends of the scale-like lever 186 are connected to the main body 17
It protrudes from the vertically long windows 188 and 188 provided at the outer peripheral surface of the main body 170.

A weight (for example, No. 4.5) is placed along the rope 12a from the barge.
If you drop a weight (similar to the weight 20A shown in the figure),
The lower surface of this weight applies a downward impact to both ends of the scale lever 186. Then, lock rod 178, lock claw 1
84 moves downward while compressing the spring 180, and the lock pawl 184 escapes from the engagement hole 182 of the movable hook 176. Then, the movable hook 176 is connected to the 12th center around the pin 174.
Rotate clockwise in the figure. Therefore, the fixed hook 172
An eye (not shown) at the other end of the lower rope 12b tied to
detaches from the movable hook 176. As a result, the anchor can be pulled up from its claw side in the same way as in the previous embodiments.

According to this embodiment, even if the locking device 14B comes out on a rock on the seabed and one end of the scale-shaped lever 186 receives a downward impact, the lock rod 178 will move downward simply by swinging the lever 186. In other words, only when both ends of the lever 186 are simultaneously struck downward by the weight, the lock rod 178 moves downward and locks the lock pawl 184.
Then the movable hook 176 can be released. As a result, malfunctions caused by rocks on the ocean floor can be reliably prevented.

In the above embodiments, the latching device 14 is configured to release the eye 16 using the weight 20, but various structures are possible for the latching device 14. 16, or using another control rope to release the eye 16.

(Effects of the Invention) As described above, the present invention enables the lower end of the rope to be folded back into a loop shape so as to be latched to the latching device, and the rear end of the anchor is located on the lower end side of the rope from the middle between the latching device and the lower end of the rope. An anchor is attached to the lower end of the rope. Therefore, if the lower end of the rope is hooked to the latching device, the tension of the rope will be applied from the rear end side in the same way as with a normal anchor.

When the lower end of the rope is released from the latching device, the tension of the rope acts on the tip of the anchor, and the anchor is pulled up from the tip side. Therefore, when pulling up the anchor, claws caught on rocks can be easily removed, making the lifting work easier.

Furthermore, when the present invention is applied to an anchor that obtains a large holding force by grasping a large amount of mud or sand,
When the anchor is lifted, the trapped mud and sand will be discharged and lifted from the tip of the anchor. This eliminates the need to pull up the anchor along with large amounts of mud and sand, making it possible to pull it up with less force.

Furthermore, even if the angle of the rope changes as the ship moves or a large force is applied to the rope, the latching device will not be released naturally, making it possible to obtain a highly reliable anchor device.

[Brief explanation of drawings]

Fig. 1 is an explanatory diagram of the principle of the present invention, Fig. 2 is a perspective view of the first embodiment of the invention, Fig. 3 is a perspective view of the same during salvage, and Fig. 4 is a perspective view of the first embodiment of the invention.
The figure is a perspective view of the latching device, FIG. 5 is a partial sectional view thereof, and FIG.
7 is a perspective view of the second embodiment, FIG. 7 is a diagram of its usage state, FIG. 8 is a side view of the third embodiment, FIG. 9 is a diagram showing the salvaged state, and FIG. 10 is a diagram of the fourth embodiment FIG. 11 is a perspective view of the example, FIG. 11 is a view showing the lifting device, FIG. 12 is a partially sectional front view of another embodiment of the latching device, and FIG. 13 is a right side view. Further, FIGS. 14 and 15 are a side view of the conventional device and an enlarged view of a part thereof. 12... Rope, 14... Latching device. 18... Anchor, 20... Weight.

Claims (7)

[Claims] (1) A latching device installed in the middle of the rope that folds back the lower end of the rope into a loop shape and releasably latches it; and an anchor attached to the latching device side so that its rear end on the side opposite to the claw is located on the lower end side of the rope,
An anchor device for a ship, characterized in that the lower end of the rope is hooked to the hooking device to sink the anchor, while the lower end of the rope is released from the hooking device from onboard the ship and the anchor is pulled up from the claw side tip. . (2) The anchor is slidably attached to the rope, and there is a stopper on the rope that restricts the anchor from moving toward the latching device, and a stopper that is attached to the rear end of the anchor on the side opposite to the claw when the anchor is pulled up. 2. An anchor device for a ship according to claim 1, wherein matching stoppers are provided at the lower ends of the ropes. (3) The anchor device for a ship according to claim 1, wherein the anchor is fixed to a rope. (4) The anchor device for a ship according to claim 1, wherein the anchor is a folding anchor with a claw that opens and closes. (5) The anchor is equipped with a bag that expands when the claw opens, and while the bag is submerged in the water in a folded state, when the anchor is pulled up, the rope engages with the bottom of the bag and is pulled up from the bottom of the bag. An anchor device for a ship according to claim 4. (6) The latching device includes a main body fixed to the rope, a hook member rotatably connected with a pin to the lower part of the main body, and a hook member rotatably connected with the pin to the upper part of the main body. and a lock lever with which the rotating end engages, and the lock lever is biased in a direction to engage the hook member, and is struck by a weight that falls from the ship on a rope and releases the hook member. The anchor device for a ship according to claim 1, wherein the anchor device is rotated in a direction to (7) The latching device includes a substantially cylindrical main body fixed to a rope connected to the hull, a fixed hook fixed to the lower part of the main body, and a pin rotatably connected to the lower part of the fixed hook. A movable hook, a lock rod movable on the central axis of the main body within the main body, a spring that biases the lock rod toward the rope, and a spring fixed to the lock rod and engaged with the rotating end of the movable hook. The lock claw is provided with a removable lock claw, and a lever-like lever that is swingably pin-coupled to the lock rod and has both ends penetrating the main body and protruding onto the circumferential surface of the main body, and the lever-like lever is guided by a rope from onboard the ship. 2. An anchor device for a ship according to claim 1, wherein both ends of the lock rod are simultaneously struck by a falling weight to push down the lock rod and release the movable hook from the lock pawl.