JPH11208573A - Marine anchor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To secure a good anchoring effect despite a fact that an anchor is apt to come off even if it becomes in a state of biting into a rock in the case where it is secured to the reefy seabed, and further, even in a sandy seabed. SOLUTION: In a device which is provided with plural pieces of mooring arms in the lower part of a trunk installed with a connector link connecting a mooring rope on the upper end, this trunk 1 is composed of a flexible material. Then, this truck 1 is formed into a structure made up of superposing plural sheets of flexible band plates 1A. Out of plural arms, at least its part of a main arms is composed of a flexible band platelike material. In addition, a resistance plate 7 is attached to a tip part of the main arm 3 in a direction where the plate surface is crossed with a plate surface of the arm.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a marine anchor for a fishing boat, a leisure boat or the like.

[0002]

2. Description of the Related Art To moor a ship at a place other than a wharf in a port, it is necessary to rely on an anchor. The condition of the seabed where this anchor is introduced can vary from flat sand to rocky areas with large and small blocks of rock. In the case of small fishing boats and leisure boats for fishing or strolling in the sea, it is important to make sure that the boat is moored at a good point where fish can easily gather. And this mooring location often needs to be moved.

[0003]

A known existing anchor is that if the seabed is a rocky reef, the anchor is firmly hooked on the rock and can be moored securely. In many cases, the mooring line must be left on the seabed. On the other hand, existing anchors had insufficient anchoring effects on sandy seabeds due to their shape.

[0004] Abandoning an anchor that is no longer detached from a rocky area will result in a large economic loss, and will necessitate giving up on the next action plan of the day and returning to the port. In addition, the anchor that has been left becomes an obstacle that damages the bottoming net and the like. Also, when the seabed is sandy, it is extremely inconvenient to be unable to perform a reliable mooring function. Therefore, an object of the present invention is to provide a ship anchor that is capable of removing a danger of being unrecoverable while being caught on a rock when anchored on a reef-like seabed, and that can obtain a reliable anchoring effect even on a sandy seabed. In providing anchors.

[0005]

Means for Solving the Problems To achieve the above object, a marine anchor according to the present invention has a plurality of mooring arms projecting laterally below a main trunk connecting mooring lines. Here, the main trunk 1 is made of a flexible material. Then, the main trunk 1 may have a configuration in which a plurality of metal strips 1A are stacked. or,
The main arm 3 of the plurality of arms may be formed of a flexible strip. Strip 1A or main arm 3
The width of the plate may be partially reduced in order to increase its flexibility. Further, a resistance plate 7 is provided at the tip of the main arm 3.
May be attached in a direction in which the plate surface crosses the plate surface of the main arm 3. Then, the resistance plate 7 may be bent in a mountain shape.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. The anchor A of this embodiment is made of stainless steel, and as shown in FIG. 1, a vertical main trunk 1 provided with a connecting ring 2 for connecting a mooring cable to an upper end, and a laterally projecting lower portion of the main trunk 1. A plurality of mooring arms, in this embodiment,
The main arm includes three main arms 3 and 3 and one sub arm 4 arranged orthogonally to these arms.

As shown in FIGS. 1 and 2, the main trunk 1 has a form in which two strips 1A, 1A having a predetermined length and width are overlapped. The upper ends of the strips 1A, 1A
The connecting pins 5 are inserted and united. The thickness, width, and length of the strip 1A are such that, when the anchor A is stuck on the rock and cannot be removed, if the mooring cable is strongly pulled, it bends to some extent in the thickness direction. The decision is made based on the results of trial and error. And the connecting pin 5
A U-shaped connecting ring 2 for hooking a mooring line is axially fitted to both ends of the connecting pin 5 so as to be rotatable around the axis of the connecting pin 5.

The lower ends of the two strips 1A, 1A are joined to each other by welding or the like while sandwiching the middle portion of the rod-shaped sub-arm 4 having a predetermined length. In the middle of the sub arm 4, a sub connecting ring 6 similar to the connecting ring 2 is provided.
Are rotatably fitted around the axis of the sub arm 4.

The sub-connection ring 6 is for connecting the lower end of the mooring line B, as indicated by a virtual line in FIG. The mooring line B, which has been pulled up along the main trunk 1, comes into contact with the connecting ring 2 at a position where the connecting wire d has a lower tensile strength than the mooring line B.
To the connecting ring 2.

As shown in FIG. 1, a band-shaped main arm 3 having a predetermined length is provided on the outer surface near the lower end of each of the two band plates 1A constituting the main trunk 1. It is vertically oriented and projects diagonally upward.

A rectangular resistance plate 7 is fixed to the upper surface of the tip of each main arm 3. The resistance plate 7 is bent in a mountain shape along the diagonal line as shown in the figure, and is fixed in such a manner that the peak of the mountain is straddled on the upper surface of the main arm 3.

Next, the operation of the above configuration will be described. When anchored on a rocky sea (water) floor, as shown in Fig. 1,
When the main trunk 1 of the anchor A has landed vertically, the main arm 3 often gets caught on the lower surface of the rock D projecting like an overhang when the anchor A is lifted.

If the hooking is relatively shallow, when the mooring line B is strongly pulled, the connecting wire d connecting the mooring line B to the connecting ring 2 is cut off as shown in FIG. In this state, when the mooring cable B is further pulled, the anchor A is pulled from the lower end side of the main trunk 1 as can be understood from FIG.

[0014] If the anchor is still not detached, the conventional anchor has to be abandoned together with its mooring line unless it is removed by diving.

However, according to the anchor A of the present invention, FIG.
In this state, when the mooring line B is strongly pulled, the strip 1A constituting the main trunk 1 is curved like a bow in the thickness direction as shown by the imaginary line c in FIG. Accordingly, as shown in the figure, the intersection angle θ of the axis b of the main arm 3 with respect to the axis a connecting the upper and lower ends of the main trunk 1 increases.

The strip-shaped main arm 3 is also slightly twisted when the mooring line B is strongly pulled depending on the state of being caught on the rock D, so that the crossing angle θ is further increased.
Therefore, as understood from FIG. 1, the main arm 3 can be removed from the reef only by strongly pulling the mooring line B.

Further, as shown in FIG. 3, the rocky sea (water)
Even when the anchor A lays on the bottom, the main arm 3 also has a rock D projecting like an overhang.
It may not come off while being hooked on the lower surface of the.

In this case, when the mooring line B is strongly pulled, the belt-shaped main arm 3 is bent in the thickness direction as shown by a virtual line in the figure. For that reason,
As long as the main arm 3 is not so stuck on the rock D, the anchor A can be separated from the rock D relatively easily.

When the anchored seabed is sandy,
The anchor A in which both the main trunk 1 and the main arm 3 have a plate shape is easily sunk into the sand layer. Of course, since the resistance plate 7 bent in a mountain shape is attached to the tip of the main arm 3, even if the tide or wind tries to push the ship with strong force, the resistance plate 7 is caught in the sand. , And a good anchor effect is generated.

Further, the anchor A made by combining the strip-shaped members has a lower resistance to water when moving underwater than a conventional anchor. Therefore, the labor and time required for raising and lowering the anchor A can be considerably reduced as compared with the conventional anchor.

FIG. 4 shows another example of the shape of the strip 1A. In the band plate 1B as another embodiment, the width of the plate is gradually reduced from both ends toward the center. The flexibility of the main trunk 1 can be arbitrarily changed by this narrowing adjustment. The same applies to the belt-shaped main arm 3.

If the anchor A that is caught on the reef and cannot be detached is forcibly pulled, the metal main trunk 1 or the main arm 3 subjected to a force exceeding the limit of elasticity may be applied in some cases.
Can be pulled up while being bent and deformed. However, in that case, the bent portion can be easily returned to the original shape by hitting it with a hammer.

In the above embodiment, the number of the strips 1A constituting the main trunk 1 may be one or three or more depending on the size of the anchor A. Further, the shape of the resistor plate 7 and the number of mounting locations are not limited to those shown in the drawings.

[0024]

As apparent from the above description, the marine anchor according to the present invention has excellent practical effects as listed below. (A) Since it is made by combining a plurality of flexible strips, even if the anchor bites into the reef and cannot be removed, if the mooring line is strongly pulled, the anchor is often reversible. Because it is deformed, it can be removed relatively easily. (B) Even if the seabed is sandy, the resistance plate attached to the main arm cuts into the sand layer, and a good anchoring effect is produced. (C) Since it is made by combining plate-like materials capable of reducing resistance to water, the labor and time required for raising and lowering the anchor can be reduced.

[Brief description of the drawings]

FIG. 1 shows an embodiment of the present invention and is a front view of an anchor.

FIG. 2 is a side view of the anchor.

FIG. 3 is a perspective view showing a state in which the anchor is overturned.

FIG. 4 is a perspective view showing another example of the shape of a strip constituting a main trunk.

[Explanation of symbols]

 Reference Signs List A anchor B mooring cable d connecting wire D rock 1 main trunk 1A, 1B strip 2 connecting ring 3 main arm 4 sub arm 5 connecting pin 6 sub connecting ring 7 resistance plate

Claims (6)

[Claims] 1. A main trunk 1 comprising a flexible material, in which a plurality of mooring arms project laterally below a main trunk connecting a mooring line. Ship anchor. 2. The marine anchor according to claim 1, wherein the main trunk 1 has a configuration in which a plurality of metal strips 1A are stacked. 3. The main arm 3 of the plurality of arms.
The marine anchor according to claim 1 or 2, wherein said marine anchor is made of a flexible strip. 4. The ship according to claim 1, wherein the width of the band plate 1A or the main arm 3 is partially reduced in order to increase flexibility. Anchor. 5. A resistance plate 7 is provided at the tip of the main arm 3.
The marine anchor according to any one of claims 1 to 4, wherein a plate surface is attached in a direction in which a plate surface crosses the plate surface of the main arm 3. 6. The marine anchor according to claim 5, wherein said resistance plate is bent in a mountain shape.