JPH0125760Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Field of Industrial Application) The present invention relates to a restraint device for controlling the movement of a ship's anchor chain.

(Prior Art) A conventional anchor chain device is shown in FIGS. 5 and 6. In the figure, 01 is the main body, and 02 is the bolt. The bolt 02 is rotatably attached to the main body 01 via a shaft 04. A handle 03 is attached to the tip of the bolt 02 and has a hole. A pin 05 is a stopper and is inserted into a hole provided in the bolt 02 and the main body 01 to fix the bolt 02 to the main body 01. In FIG. 6, the anchor chain is located in the space formed by the main body 01 and the bolt 02. Anchor chain is barred 0
2 moves in the open state, and is locked by closing the bolt 02 as shown in FIG.

(Problems to be Solved by the Invention) In the conventional restraint device described above, a person opens and closes the bolt and attaches and detaches the bolt using a pin on the spot. The present invention is intended to provide a restraint device that can be remotely operated for ships, which have recently tended to reduce the number of crew members.

(Means for solving the problem) The present invention makes the shape of the bolt L-shaped and arranges an opening/closing cylinder inside it so that the bolt can be opened and closed by expanding and contracting the opening/closing cylinder. The stopper that is fixed to the main body when closed is also hydraulically operated, and the operations of both cylinders are linked by one hydraulic circuit.

(Function) When the rod of the opening/closing cylinder is retracted, the bolt is in the anchor chain locking position, and the stopper cylinder is extended and inserted into the hole of the bolt, fixing the bolt. To release the bolt from this state, the hydraulic circuit is activated to retract the stopper cylinder and release the lock, and at the same time the rod of the opening/closing cylinder is extended to swing the bolt upward. .

(Example) The present invention will be explained with reference to an example shown in FIGS. 1 to 4. 1 is the main body of the restrainer;
The shape is almost the same as specified in JISF2015.
2 is a bolt, and the overall shape is L-shaped. The long side of the bolt 2 has a solid rod shape, has a hole 2b at its tip, and has an eye plate 2a attached to its back. The short side (protruding part) of the bolt 2 is formed of two plates spaced apart, and a hole is provided at the tip thereof, and the bolt 2 is rotatably supported on the main body 1 by a pin 3 passing through the hole. ing. Reference numeral 4 denotes an opening/closing cylinder arranged inside the bolt 2, the base of which is rotatably attached with a pin 6 to an eye plate 5 fixed to the main body 1 located between the plates constituting the short side of the bolt 2. The tip of the rod at the other end is connected to the eye plate 2a with a pin 7, and is arranged so that the rod of the opening/closing cylinder 4 is in a contracted state when the bolt is closed. A stopper cylinder 8 is attached to the opposite side of the main body 1 from the eye plate 5 at a position where a cylinder rod can be inserted into the hole 2b when the bolt 2 is closed. FIG. 4 shows a hydraulic circuit for operating the opening/closing cylinder 4 and the stopper cylinder 8. Reference numeral 9 denotes a control valve for opening/closing operation, and switching between an open port 9b, a closed port 9c, and a neutral position is performed by operating a handle 9a. Reference numeral 11 designates a control valve for the opening/closing cylinder 4, which includes a speed adjustment block 11c and check valves 11a and 11b for maintaining the state. 1
0 is a switching valve that controls the stopper cylinder 8, which includes an A port 10a for retracting the rod, a B port 10b, and a neutral port 10c for extending the rod.
It has Switching between these ports is performed by hydraulic pressure and springs flowing through the conduits 12a and 12b. 12 is another conduit. P is the pressure side of the hydraulic pressure and T is the return side. 13 is an anchor chain, which is pulled in the direction of arrow 14 in FIG. In the closed position of the bolt 2 in FIG. 2, the anchor chain 13 comes into contact with the bolt 2 and is locked.

1 to 4 show the state in which the bolt 2 locks the anchor chain 13, and when the bolt 2 is released and the anchor chain 13 is let out, for example,
Operate the handle 9a to open the control valve 9 so that the port 9b is activated. Oil flows from P to conduit 12a through point a, the port of switching valve 10 is switched to port A 10a, the rod of stopper cylinder 8 is retracted, and the stopper state is released. Next, oil flows to the opening/closing cylinder 4 with a slight delay due to the speed adjustment block 11c, the cylinder rod is extended, and the bolt 2 is swung upward. When the handle 9a is operated to set the control valve 9 to the neutral position with the bolt 2 in the upright position, the check valve 11a operates, the bolt 2 remains in the upright position, and the stopper cylinder 8 protrudes. Kannuki 2
When closing, the handle 9a is operated to act on the closing port 9c of the control valve 9, which is the opposite of the opening operation.

(Effects of the invention) As explained above, according to the invention, the bolt can be opened, closed, fixed, and released by operating the hydraulic circuit, making remote control possible. This becomes a powerful means of labor saving. In addition, the protruding part of the L-shaped bolt faces upward, and the upper part of the groove through which the anchor chain passes is all open, so even if the anchor chain moves up and down, it will not cause excessive impact when it hits the bolt. This prevents damage to the bolts, opening/closing cylinders, etc. Furthermore, since the main body and the bolt are fixed by remote control using a stopper cylinder that works in conjunction with the opening/closing cylinder, the bolt will not become unlatched even if the hull is subjected to impact from waves or the like during voyage.

Moreover, since the shape of the bolt and the arrangement of the opening/closing cylinder are as described above, the opening/closing cylinder is in a contracted state when the bolt is locked during voyage, and the rod of the opening/closing cylinder is not exposed to exposure, so it is not exposed to external causes. Rod damage and corrosion are extremely reduced.

[Brief explanation of the drawing]

1 to 4 show an embodiment of the present invention, and FIG. 1 is a cross-sectional view taken along line A-A in FIG. 2 showing the front view;
Figure 2 is a right side view, Figure 3 is a left side view, Figure 4 is a hydraulic circuit diagram, Figure 5 is a side view of a conventional restraint device, and Figure 6 is a sectional view taken along line XX in Figure 5. It is. 1... Main body, 2... Bolt, 4... Opening/closing cylinder, 2b... Hole, 8... Stopper cylinder.

Claims (1)

[Scope of utility model registration request] An L-shape in which a protruding part is arranged so as to face upward, the end of the protruding part is pivotally supported on the body of the restrainer, and when closed, it bridges over a groove in the body through which the anchor chain passes, and when opened, it rotates to open the groove. a lock in the shape of a lock, an opening/closing cylinder having both ends rotatably attached to the main body and the lock and disposed inside the lock, capable of engaging with a hole provided at the other end of the lock when the lock is in a closed position; A restraint device comprising: a stopper cylinder attached to the main body; and a hydraulic circuit that operates the opening/closing cylinder and the stopper cylinder in conjunction with each other.