JPH036038B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a hook device for hauling a ship or overflowing a ship, and in particular, a hook device for attaching the hook between two attachment plates arranged parallel to each other with a distance between them. The hook, the locking member and at least one
Equipped with a saddle that swingably supports individual claws,
The locking member is provided with two guiding abutment surfaces forming a space for retaining a portion of the hook when the hook is in the active position, one of the guiding abutment surfaces being one of the guiding abutment surfaces of the locking member. The locking member is disposed near the swing axis and cooperates with a portion of the hook to swing the locking member between a released position and a locked position, and is further arranged to swing the locking member between a released position and a locked position on the side of the space. At least one ratchet segment is secured thereon, the ratchet segment and the pawl cooperate to hold the locking member in the locked position, and the pawl and the ratchet segment cooperate to hold the locking member in the locked position. This invention relates to a hook device which can be disengaged by a release means.

Such hook devices are used for long periods of time without maintenance and inspection under adverse conditions caused by seawater, and are subjected to extremely large loads. This tends to cause a failure in which the locking member swings unnecessarily between the released position and the locked position.

The object of the present invention is to provide a hook device that does not have such drawbacks.

In the hook device of the present invention, the pivot means comprises:
The saddle comprises two pivots mounted in respective coaxial holes in both mounting plates of the saddle and extending into the locking member from opposite sides of the space, with the locking member being mounted on both pivots. The release means is biased by a return spring that biases the pawl member toward the locked position, and is operated from an operating lever attached to the non-circular end of the pawl member. The operating lever further includes a locking device consisting of a pin with a handle, and by manually operating the handle, the pin can be inserted into and removed from a hole provided in a member fixed to the plate. It is characterized by being like this.

Embodiments of the present invention will be described in detail below with reference to the drawings.

1 to 3, a mooring hook according to an embodiment of the invention has a saddle formed by two parallel plates 1 connected by a cross member 2. In FIGS. The saddle is swingably connected at one end to a connecting piece 5 by a horizontal pin 3. The connecting piece 5 is provided with a vertical through hole 4, into which a vertical pin (not shown) of a tugboat, pier, mooring buoy, etc. is rotatably inserted during use.

A pin 6 extends through both plates 1 at the other end of the saddle, and a hook 7 is attached to the pin 6.
is swingably attached. The hook 7 consists of a hook part 8 and an arm 9, and when the hook 7 is in the operating position shown by the solid line in FIG. 1, a mooring line can be hooked onto the hook part 8. One end 10 of the arm 9 cooperates with a locking member 11 swingably mounted between the plates 1 to lock the hook 7 in the working position. The locking member 11 consists of two side plates 12 that are partially arcuate, and a pin 1.
4 and a guide abutment member 15. The pin 14 and the guide abutment member 15 are fixed to both side plates 12 at both ends. Also, the pin 14 is
The cross section between the two is cut into a semicircular shape.
Further, the guide abutment member 15 is arranged so as to face one end 10 of the arm 9 when the hook 7 is in the operating position. A space 13 is formed between the flat surface of the shaved portion of the pin 14 and the guide abutment member 15 in which the one end 10 of the arm 9 can be accommodated. The two side plates 12 also include a first step 16 that engages with the swing claw 17 and a second step 18 that engages with the restriction plate 19 attached between the two plates 1. It is designed to act as a ratchet.

When the second stepped portion 18 comes into contact with the restriction plate 19, the locking member 11 moves against the hook portion 8 of the hook 7.
is in a released position which allows the hook 7 to move towards its released position until it abuts a stop 20 fixed to one of the armrests 2, as shown in broken lines in FIG. The swinging pawl 17 has a rotating shaft shape that is pivotally supported within the plates 1, and is cut so that the cross section becomes semicircular at two positions facing the side plate 12, thereby forming two grooves. 21 is formed in which the side plate 12 is formed such that the first step 16 can abut against the peripheral surface of the shaft, that is, the swing pawl 17 adjacent to the groove 21. It has been inserted. When the locking member 11 is in the locked position, the swinging pawl 17 engages with the first step 16 to move the pin 14 to the position shown in FIG. to hold. At this time, the one end 10 of the arm 9 of the hook 7 is held within the space 13.

An operating lever 22 is attached to the non-circular end of the shaft or swing pawl 17, and a nut 24
It is fixed by. The operating lever 22 is biased by a return spring 25 that biases the swing pawl 17 toward the lock position. Its return spring 25 is incorporated in a device 26 fixed to one of said plates 1. Furthermore, the operating lever 22 is provided with a locking device 27. The locking device 27 consists of a pin 28 with a handle 29, and by manually operating the handle 29, the pin 28 can be inserted into and removed from a hole provided in a member 30 fixed to the plate 1. It is becoming possible to do this. By inserting the pin 28 into the hole, the lever 22 is prevented from moving unnecessarily.

The lock member 11 is swingably mounted between the two plates 1 by two pivots 31 plated with hard chrome. Both pivots 31 are respectively mounted in two coaxial holes provided in both plates 1, and extend into cylindrical holes provided respectively in the axial ends of the locking member 11. Each pivot 31 is secured to plate 1 by a bolt 32 threaded into plate 1 through a hole provided in a flange 33 on the outer end of pivot 31. The pivot 31 is inserted into the locking member 11 a distance approximately equal to the axial length of the side plate 12. A self-lubricating pusher 34 made of a special synthetic material is inserted between the inner surface of the hole in which the pivot 31 of the locking member 11 is inserted and the outer surface of the pivot 31, and the pusher 34 is made of a special synthetic material. A washer 35 made of the same material is inserted between them.

Lock member 11 and its attachment means 31 to 35
Even if both plates 1 are welded together by a arm member 2, they can be attached to and detached from the saddle, making maintenance, overhaul, and replacement easy.

Since the pawl 17 does not have a protruding portion on the outer surface of the cylindrical shaft, it can be attached by passing it through the self-sliding bearing bush 36 from the outside of the saddle. Furthermore, the pins 3 and 6 are also connected to the hole in each plate 1 and the hook 7 from the outside of the saddle.
It can be passed through the self-sliding bush 37 in the connecting piece 5. During use, when the hook part 8 is pulled while the locking member 11 is locking the arm 9 of the hook 7, the hook 7 swings around the pin 6 and tries to lift the one end 10 of the arm 9. This movement is prevented by pin 14. The force that attempts to lift this one end 10 acts on a position slightly offset from the axis of the pin 14, so that it attempts to rotate the pin 14, but this rotation is prevented by the claw 17. Move the operating lever 22 in the direction of arrow 4.
When moved in the direction of 0, the first stepped portion 16 and the claw 1
7 and the pin 14 is now able to rotate in the same direction. One end 10 of the hook 7 is therefore also released from said space 13, so that the hook 7 can rotate freely under the influence of said tension force. When the hook 7 returns to the operating position shown in FIG. 1, the one end 10 of the arm 9 moves downward;
While abutting the rounded portion of the guide abutment member 15, the pin 14 is rotated in the opposite direction of the arrow 40 to return the locking member 11 to the locked position. The pawl 17 now locks the locking member 11 in its locked position by the force of the return spring 25. The return movement of the hook 7, initiated and completed by a relatively small force obtained by its own weight, hand, remote control means, etc., causes the locking member 11 to move against the arm 9 of the hook 7. is automatically returned to the locked position holding one end 10 within the space 13. The release and automatic return of the hook 7 requires that the locking member 11 be able to move smoothly, which can be achieved by easily accessible pivoting means.

[Brief explanation of drawings]

FIG. 1 is a side view of a mooring hook device according to an embodiment of the present invention, FIG. 2 is a partially sectional plan view of FIG. 1, and FIG.
The figure is a sectional view taken along the line -- in FIG. 2. 1...Plate, 3, 6, 14...Pin, 7...
...Hook, 8...Hook part, 9...Arm, 10
... One end, 11 ... Lock member, 12 ... Side plate,
15... Guide abutment member, 16... First step portion, 1
7... Rocking claw, 18... Second step, 22... Operating lever.

Claims (1)

[Scope of Claims] 1. A hook provided between two mounting plates disposed parallel to each other with a distance therebetween by a pivot means extending within a through hole provided in the two mounting plates;
A saddle is provided which swingably supports a lock member and at least one pawl member, and the lock member forms a space in which a portion of the hook is held when the hook is in an operating position. one of the guiding and abutting surfaces is disposed near the pivot axis of the locking member, and cooperates with a portion of the hook to move the locking member between the released position and the locked position. At least one ratchet segment is fixed on the locking member on the side of the space, and the ratchet segment and the pawl member cooperate with each other. The mooring hook device is adapted to hold the locking member in the locking position, and the engagement between the pawl member and the ratchet segment can be disengaged by means of a release means, characterized in that the pivot Means comprises two pivots each mounted in a coaxial hole in each of the mounting plates of the saddle and extending into the locking member from opposite sides of the space; is swingably supported on both pivots, and the release means is biased by a return spring that biases the pawl member toward the locked position and is attached to the non-circular end of the pawl member. It consists of an operating lever, and the operating lever further includes a locking device consisting of a pin with a handle, and by manually operating the handle, the pin is inserted into and removed from a hole provided in a member fixed to the plate. A hook device characterized by being adapted to be able to. 2. The pawl member is a rotating shaft that is pivotally supported within both of the mounting plates, and at least one portion of the rotating shaft facing the ratchet segment of the locking member is shaved so that the cross section thereof is approximately semicircular. , thereby forming a groove within which the ratchet segment extends such that a shoulder portion of the ratchet segment can abut a circumferential surface of a portion of the rotating shaft adjacent to the groove. A hook device according to claim 1, characterized in that the hook device has a shape of .