JPH0228006B2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention provides a simple structure that allows one object to be tightly connected to another desired object and, when necessary, to easily and reliably disconnect the connection. This invention relates to an automatic disconnection device.

[Conventional technology]

Generally, it may be necessary to tightly connect one object to another desired object via a wire rope or the like, and then instantly disconnect the two objects as necessary to separate the two objects.

In such a case, for example, when a ship is launched, the launching slide, which is tied and fixed to the ship's hull with dozens of wire ropes, can be fixed by cutting off the wire ropes at the same time immediately after the ship is launched. , removal from the bottom of the ship, etc.

Normally, a ship is launched as shown in Figure 3. That is, the hull 1 rests on the launching slide 3 by its bottom 4, and the hull 1 and the launching slide 3 are connected to the launching slide 3 by dozens of rods attached to the launching slide 3 via shafts or the like. The wire rope 7 is secured to a bracket provided on the deck 5 of the hull 1 by tightening it with several tens of disconnecting devices 6 secured by turnbuckles or the like. The launch slide 3 slides on the launch fixed base 2 which is installed at an angle, and the launch is performed.

Conventionally, a manual separation device 6 as shown in FIG. 4 has been used. That is, at the other end of the main body link 8 on the rectangular plate, which has a fixing wire rope 15 for fixing the device itself at one end, there is a hook 9 for locking a connecting wire rope 14 for tightly connecting a desired object. It is rotatably attached to the main body link 8 in the longitudinal direction by a hook pin 11. On the other hand, a separation lever 10 is rotatably attached to the main body link 8 by a separation lever pin 12 on both sides of the central part of the main body link 8, and a separation stop is fixed near the central part of the separation lever 10. A pin 13 is hung on the tip of the hook 9 to prevent the hook 9 from rotating open due to the tensile force of the connecting wire rope 14.

[Problem that the invention seeks to solve]

Immediately after launching, the launching slide 3 is separated from the hull 1. In this case, conventionally, several dozen workers use a separating device that tightens each of the dozens of wire ropes 7. 6 were manually operated at the same time, and the wire rope 7 was cut off. In this case, each worker must use a sledgehammer to strike the disconnection lever 10 of the disconnection device 6 at the same time to release the restraint on the hook 9, which requires great effort and timing. Ta. If a deviation occurs in this timing, a large load may be applied to the disconnection device 6 that is delayed in operation, causing it to break, creating a risk of injury to the operator or damage to other items. Ta.

[Means for solving problems]

As a result of intensive research in order to solve these problems, the present inventors found that by using the gas-operated retracting pin of the present invention, these conventional problems could be solved at once, and the present invention was developed. It was completed.

That is, the present invention provides an automatic disconnection device that has a simple structure, is safe and reliable, and can operate a large number of devices at the same time.

Next, an example of an embodiment of the present invention will be described with reference to the drawings.

1 and 2 are perspective views showing the automatic disconnection device of the present invention before and after operation.

In these figures, the automatic disconnection device of the present invention is combined with the conventional manual disconnection device shown in FIG.
The main body link 8, hook 9, hook pin 11, connecting wire rope 14, and fixing wire rope 15 are the same.

As shown in FIG. 1, the tip of the hook 9 is attached to a pair of crosspiece lever receivers 17 and 18 fixed perpendicularly to the center of both sides of the main body link 8, before operation. The rotation of the bar lever 16 held by the lever 16 is suppressed and the connecting wire rope 14 is locked. but,
After activation, as shown in FIG. 2, the restraint on the rotation of the hook 9 by the crosspiece lever 16 is released, the hook 9 rotates to open around the hook 11, and the connecting wire rope 14 is detached from the hook 9. , the desired object connected to the other end of the connecting wire rope 14 is
It will be cut off together with the connecting wire rope 14.

The crosspiece lever 16 has one end connected to the crosspiece lever pin 19.
is rotatably attached to the tip of the crosspiece lever receiver 17, and the other end of the crosspiece lever 16 is attached to the tip of the other crosspiece lever receiver 18 that is paired with the crosspiece lever receiver 17 before operation. The actuating retracting pin 20 engages with the tip of the crosspiece lever receiver 18 and prevents the hook 9 from rotating.
Note that a pair of electric conductors 21 are attached to the gas-operated retracting pin 20 to operate it.

Furthermore, FIGS. 5 and 6 are cross-sectional views showing the state of the gas-operated retracting pin 20 before and after the operation.

In these figures, 27 is a cylindrical piston pin with a larger outer diameter near its center, and has a cavity a extending from its rear end to a point slightly further toward the tip than the larger outer diameter portion. . cavity a
The gas generator 26 is fixed to the rear end with a screw cap 33, and the distal end thereof has a plurality of ventilation holes c communicating the cavity a and the outside world.

The piston pin 27 is slidably fitted into a cylinder 28 having a step near the center of the inner wall so that the tip of the piston pin 27 enters a small inner diameter portion of the cylinder 28. The part where the outer diameter of cylinder 2 has increased
A space b is formed between the step of the inner wall of No. 8,
This space b communicates with the cavity a of the piston pin 27 through a plurality of ventilation holes c provided in the piston pin 27. Further, the end face of the large inner diameter portion of the cylinder 28 is fixed by a locking nut 29 to prevent it from falling off from the cylinder 28 when the piston pin 27 is actuated.

On the other hand, the gas generator 26 includes a screw cap 33 for fixing it in the cavity a of the piston pin 27, a pair of electrical conductors 21 passing through the screw cap 33, and an inner portion of the screw cap 33 of the electrical conductor 21. A heating wire 22 that is applied to both end faces of the wire and generates heat when energized, an ignition agent 23 that is applied around the wire and ignited by the heat generated by the heating wire 22, and a gas generating agent 24 that burns and generates gas when ignited. The gas generating agent 24
The gas generating agent container 25 is fixed to a screw cap 33.

Further, an O-ring 30 is attached to the outer periphery of the piston pin 27 to maintain airtightness with the inner wall of the cylinder 28.
31 and the piston pin 27 are actuated, a portion of the piston pin 27 with an increased outer diameter is provided with a cushion ring 32 for absorbing a shock that collides with the locking nut 29. The diameter of the screw cap 33 is larger than the diameter of the piston pin 27 to prevent the piston pin 27 from fitting into the cylinder 28 excessively.

Gas-operated retracting pin 20 configured in this way
To attach the cylinder 28 to the tip of the crosspiece lever receiver 18, attach the threaded part on the outside of the tip of the cylinder 28 to the crosspiece lever receiver 18.
This is done by screwing into a screw hole provided in the

[Effect]

To perform disconnection using the automatic disconnection device of the present invention, first, an electric current is passed through the electric conductor 21 to cause the heating wire 22 to generate heat and ignite the ignition agent 23, thereby burning the gas generating agent 24. The gas generating agent container 25 is destroyed by the pressure of the gas, and the cavity a is filled with the gas. Further, the filled gas flows into the space b through a plurality of vent holes c provided in the piston pin 27. As a result, the volume of the space b expands, so the piston pin 27 slides in the direction of the locking nut 29, and the cushion ring 32
moves until it touches the locking nut 29, and the tip of the piston pin 27 is retracted into the cylinder 28.

As a result, the engagement of the crosspiece lever 16 with the crosspiece lever receiver 18 is released, and the crosspiece lever 16 is flipped up by the tip of the hook 9, which is about to rotate due to the tensile force of the connecting wire rope 14, and the crosspiece lever 16 is lifted up. 9 rotates to open, the connecting wire rope 14 comes off the hook 9, and the connection with the desired object is instantly severed.

〔Effect of the invention〕

If the automatic disconnection device of the present invention is used, when disconnecting the launching slide, it is only necessary to energize the electric conductor manually or automatically, which requires a lot of effort and attention from a large number of workers as in the past. This eliminates the need for labor-saving work in separating the launching slide.
It is possible to achieve unmanned operation, and it is also possible to prevent injury to workers and damage to articles due to deviations in the timing of separation, unlike in the past.

In addition, to operate the gas-operated retraction pin,
In addition to the gas generator of the present invention, an electromagnetic force or an electric motor may also be used, but especially when used on a ship's hull during launch, it requires less electric power to operate and the time required to retract the piston pin. The automatic disconnection device using the gas generator of the present invention is superior because it is short.

Further, the gas generator of the present invention is economically advantageous because it can be reused by replacing only the exothermic wire, igniter, gas generating agent, and gas generating agent container after operation.

[Brief explanation of drawings]

1 and 2 are perspective views showing the state before and after the operation of an embodiment of the automatic disconnection device of the present invention, and FIG. 3 is a perspective view showing the state when the ship is launched. FIG. 4 is a perspective view of a conventional manual disconnection device, and FIGS. 5 and 6 are cross-sectional views showing states before and after operation of an embodiment of the gas-operated retracting pin of the present invention. 1: Hull, 3: Launching slide, 6: Disconnection device, 7: Wire rope, 8: Main body link, 9: Hook, 10: Disconnection lever, 14: Connection wire rope, 15: Fixing wire rope, 16 : Crosspiece lever, 17, 18: Crosspiece lever receiver, 20 : Gas operated retractable pin, 21: Electrical conductor wire, 22: Heat generating wire,
23: Ignition agent, 24: Gas generating agent, 25: Gas generating agent container, 26 : Gas generator, 27: Piston pin, 28: Cylinder, 33: Screw cap.

Claims (1)

[Claims] 1. A rectangular plate-shaped body link having a fixing wire rope at one end for fixing the device itself; attached to the other end of the body link so as to be rotatable in the longitudinal direction of the body link, and connected. A hook that locks a desired object with a wire rope for use; A pair of crosspiece lever holders fixed perpendicularly to the main body link at the center of both sides of the main body link; It consists of a crosspiece lever that prevents the hook from rotating when an object is locked, and one end of the crosspiece lever is rotatably attached to the tip of one crosspiece lever receiver, and the other end is attached to the (A) gas-operated An automatic disconnection device that is engaged with the tip of the other crosspiece lever holder by a retractable pin, and when the gas-operated retractable pin described below (A) is activated, the automatic disconnection device releases the engagement and unlocks the desired object. . (A) Gas-operated retractable pin A cylinder for fixing the pin itself to the tip of the other crosspiece lever holder.It is slidably fitted into the cylinder and connects one end of the crosspiece lever to the tip of the other crosspiece lever holder. piston pin for engaging,
consisting of a gas generator that provides the power to slide the piston pin into the cylinder;
A gas generator consists of a pair of electric conductors that start its operation by energizing, a heating wire that is placed between both ends of the pair of electric conductors, and an ignition that is applied around the heating wire and ignited by the heat generated by the heating wire. agent,
A gas-operated retractable pin consisting of a gas generating agent that burns and generates gas when ignited by an ignition agent, and a gas generating agent container that houses the gas generating agent and is fixed to the inside of a screw cap.