JPS6358757B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to anchors, and more particularly to an improved anchor that allows so-called entangled anchors to be easily released.

Conventionally, when an anchor becomes entrenched in rocks on the ocean floor, it is extremely difficult to remove it, and sometimes the chain or rope must be cut and the anchor abandoned. .

Conventionally, as an anchor that had the function of releasing a rooted anchor, there was the Patent Publication No. 39-15618 and the Patent Publication No. 50 Utility Model Publication No. 50.
−38159 Utility Model Publication, Utility Model Publication No. 56-44997, No. 56-
64894 Utility Model Publication, etc. are known, but these are constructed so that the anchor ring can be slid or moved near the proximal end of the shank, and the point of application of force is placed on the proximal end side of the fluke. The idea is to move the anchor ring to release the rooted fluke, but if there are obstacles near the anchor, it is difficult to move the anchor ring, and
It is difficult to release the anchor unless the direction of the force is significantly changed, such as by significantly moving the ship's position. Not only is it extremely complicated, but attempting to remove it by force may damage the anchor. Sometimes I let it happen.

This invention was created in view of the above, and its main purpose is to clarify an anchor whose roots can be released very easily.Other purposes and benefits of this invention are will be apparent from the following description and the accompanying drawings. Next, embodiments of the present invention will be described in detail with reference to the accompanying drawings. Figure 1 shows the first aspect of this invention.
The front view of the embodiment and FIG. 2 are also plan views, in which 10 is a shank, 20 is a fluke, and 30 is an anchor ring. The shank 10 and the fluke 20 are connected to the shaft 40 as shown by imaginary lines in FIG.
It can be rotated around. This is because, as is well known, the Fluke 20 can rotate in either direction and act as an anchor regardless of the state of the anchor when it reaches the seabed. The angular range in which the shank 10 and the fluke 20 can rotate in a normal state is regulated by a notch 51 of a regulating plate 50 fixed to the fluke 20. That is, the notch 5
The shaft rod or rollers 11 fixed to the shank 10 are in contact with the circumferential surface of the shaft 1, and as will be described later, under normal conditions, the shaft rod or rollers 11 cannot overcome the rising portion of the notch 51. It is configured like this. Next, the above configuration will be described in detail with reference to FIG. 3. A V-shaped or arc-shaped guide hole 13 is formed in the base-like portion 12 near the base end of the shank 10, in which the shaft 40 is positioned. There is a wire or rope 60, each end of which is fixed near the proximal end of the fluke 20 and near the opening 15 of the shank 10. A loop is formed which is guided inside the shank 10 through the guide 14 and which engages the anchor ring 30 within the space of the opening 15 of the shank 10. Therefore, as shown in FIG. 4, when the fluke 20 engages with rocks on the seabed and the anchor ring 30 is pulled in the direction of arrow A by a wire chain or rope from a ship, the shank 10 also pulls the wire. The shank 10 is pulled in the same direction via a rope 60, and the shaft rod or roller 11 of the shank 10 comes into contact with the rising portion of the notch 51 of the regulation plate 50 to regulate the angular range between the shank 10 and the fluke 20. to keep the anchor functioning. If the fluke 20 becomes entangled in the above condition, move the boat to a position above the anchor and pull the wire etc. in the direction of arrow B, and the anchor ring 30 will open in the opening of the shank 10. A force is applied directly to the shank 10 in contact with the shank 15 to rotate the shank 10 counterclockwise, and at this time, the wire or rope 60 in which the loop is formed becomes slack, forming a V-shape or a circle. The base portion 12 moves around the shaft 40 according to the arc-shaped guide hole 13 (the center position of the rotation of the shank 10 changes), and the shaft rod or roller 11 at the tip can overcome the rising edge of the notch 51. As a result, the shank 10 and the fluke 20 can be rotated widely, and after the shank 10 is in a vertical state, the fluke 20 can be rotated clockwise to easily release the anchor. I can do it.

5 to 7 show an embodiment of the engagement means for the shank 10, the anchor ring 30, and the wire or rope 60, and FIGS. 5 and 6 show the shank 10 and the fluke 20 when anchoring A spring, rubber, or other elastic body 31 is arranged on the anchor ring 30 so as to maintain the state shown by the solid line in FIG. be. In this respect, as shown in FIG. 7, a shaft rod or roller 34 is disposed on the anchor ring 30 via a slide ring 33 which is biased leftward in the drawing by a spring 32. It may be made to engage with the recessed part 16 of. Note that instead of these, a spring may be interposed in a part of the wire or rope 60, or the shank 10 and the fluke 20 may be interposed.
A spring or the like for position regulation may be arranged between the two. With this configuration, the wire or rope 60 is always biased in the direction of arrow A, and as a result, the shaft or roller 11 of the shank 10
always maintains a state in contact with the notch 51 of the regulation board 50, and does not cause a malfunction in which it rises and climbs over it, and when trying to release the anchorage, force in the direction of arrow B must be applied. The state in which the anchor ring 30 is engaged with the recess 16 of the shank 10 can be easily released.

As described above, the anchor of the present invention is configured such that when a force is applied to the shank 10 in an angular direction other than the angle of the notch 51 of the restriction plate 50, the restriction on the movement angle of the shank 10 and the fluke 20 is released. Therefore, compared to anchors of conventional structure, there are advantages such as being able to release the anchorage by simple vessel maneuvering and there being no risk of damaging the anchor.

Furthermore, in the case of the anchor of the present invention, unlike conventional anchors, it is no longer necessary to make the shank 10 long for lifting the anchor, so that the force of the lever action is applied to the shank accordingly. As a result, it has become possible to solve the problems of conventional products, such as the tendency for the anchor to dislodge.

[Brief explanation of drawings]

FIG. 1 is a front view showing one embodiment of the present invention;
FIG. 2 is a plan view, FIG. 3 is an exploded perspective view of the main parts, FIG. 4 is an explanatory view of the operation, and FIGS.
The figure is a plan view showing an embodiment of the engagement structure of the anchor ring, and FIG. 6 is a sectional view taken along the line of FIG. 5. The symbols in the figure indicate the following. 10...shank, 11...axis rod or roller,
12... Base-like portion, 13... Guide hole, 14...
Guide, 15...opening, 16...recess, 20...
...Fluke, 30...Anchoring, 31...
Elastic body, 32... Spring, 33... Slide ring, 3
4... Axis rod or roller, 40... Shaft, 50... Regulation board, 51... Notch, 60... Wire or rope.

Claims (1)

[Claims] 1 The vicinity of the proximal end of the shank is connected to the shaft fixed to the fluke through a V-shaped or arc-shaped guide hole, and the shaft rod or roller attached to the proximal end of the shank is fixed to the fluke. via a wire located in the notch of the regulation board and whose ends are fixed to the fluke and shank, respectively, and an anchor ring that is engaged with the wire and is located at the tip of the shank. An anchor characterized by a fixed wire that is fed out from a ship.