JPS5943196Y2 - Boat davit simultaneous release device - Google Patents

Description

[Detailed explanation of the invention] (Purpose of the invention) The purpose of this invention is to make it possible to untie and release lifeboats in a short period of time in the event of a shipwreck, to make it possible to swing out port davits, and to quickly This is a port davit-simultaneous release device that automatically releases the lifeboat from the port davit when the ship is sinking and there is no room for normal port davit swinging out operations, and the purpose is to leave the lifeboat on the sea surface even after the ship sinks. .

(Prior art) Conventional port davits are used when a ship is shipwrecked and personnel are on board.
In order to launch a lifeboat from the ship, it is necessary to release the lashing devices at several points on the port davit one by one, swing out the lifeboat, board the boat on the deck, and lower it to the sea surface. It took a lot of time.

As a result, in the event of a sudden sinking, the lifeboats would not be able to react in time, resulting in the lifeboats sinking with the ship, resulting in loss of life.

(Structure of the invention) In view of the above-mentioned problems, the present invention has been developed in such a way that the wire ropes tying the lifeboats are loosened all at once by the manual operation of manila ropes, slip hooks, or hydrostatic releases, and the lifeboats are thrown into the board davits all at once. In addition, even if the launch operation is not completed in time, the pressure of the seawater caused by the sinking will activate the hydrostatic release, loosening the wire rope and releasing the life board in the stowed position. This will be explained with reference to the drawings of the embodiment.

In Figures 1 and 2, port davit 20 vessel S
Arms 7, 7 are rotatably attached by shafts 6, 6 to brackets 5, 5 attached to the insides of the upper parts of frames 3, 3 (on the left side in Fig. 1) at both ends in the front and back direction of the (See Figure 3) This arm? , 70 hooks 8.8 to simple 9. ! A lashing wire 10° 10 shown in FIG. is locked to a trigger device 12°12, which will be described later.

In detail, the trigger device 12.12 is shown in FIGS. 5 and 6. A boss 14 is supported on a bracket 13.13 provided approximately in the middle of each of the frames 3, 3, and a spacer is attached to the boss 14. 15. A lever 1 is attached to the inner end (right side in Fig. 6) of a shaft 16 which is rotatably supported via a lever 15.
7 through the end plate 18, and this lever 1
Turnbuckle 20 with one end attached to the lower end of 7 with shaft 19
It is connected to the tip of the lashing wire 10 through.

A hook 21 is attached to the outer end (left side in FIG. 6) of the shaft 16, and can be freely engaged with and detached from a bottle 22 implanted in the cradle 4.

In FIGS. 1, 2, and 7, the upper end is attached to the inner end (right end in FIG. 2) of the arm 7.7 rotatably attached to the inside of the upper part of the frame 3.3. Connect both ends of a separate lashing wire 25 to the lower end of each rope bundle 24, which is a bundle of manila ropes tied together through a simple hook 26 and a slip hook 2.
The cross beam 2 connected via 7 and installed between the frames 3 and 3
The hook is turned around the guides 30, 30 fixed to the brackets 29, 29 provided at both ends of the cross beam 28, and the hook is turned around the guides 32, 32 fixed to the bracket 31 provided at the center of the cross beam 28. Sheave unit 3 in the center of 33
This sheave unit 34 is connected to a hydrostatic release 36 attached to a bracket 35 fixed to a part of the ship S through a shackle 37 and a rigging screw 38.

(Function of the invention) The function of the invention will be explained with reference to the drawings of the embodiment. In Fig. 1 and Fig. 2, when either one of the manila rope bundles 24 and 24 or the slip hooks 27 and 27 is released, the lashing lobe 35 and the lever 17 can be uncoupled.

Alternatively, when the idrostatic release 36 is manually released, the sheave unit 34 and the rigging screw 3 are attached to the central hanging portion 33 of the lashing wire 25.
The connection with the hydrostatic release 36 via the 8 etc. is removed, and the lashing wire 25 is loosened.

By any of the above manual operations, the arms 7.7 provided inside the upper ends of the frames 3, 3 become rotatable, and the cradle 4
When attempting to swing out the life-saving board B, the lashing wire 10 is stretched and the hooks 8, 8 are lowered in the direction of the arrow.
The lashing wire 1 is wrapped around the front and rear of the
The simple 9, 9 at the upper end of the lashing wire 10, 10 comes off from the hook 8, 8, and the lashing wire 10, 10 loosens, and at the same time the turnbuckle 20 at the lower end of the lashing wire 10, 10
．． The levers 17, 17 of the trigger device 12° 12 attached via the lever 20 are rotatable, and the hooks 21, 21 move in the direction of the arrow Y, as shown in FIGS. Since the provided pins 22, 22 are disengaged, the cradles 4, 4 can freely rotate in the direction of the arrow Q from the frames 3, 3.

With a single operation, the davit lashings are released all at once, and the davit becomes ready for swinging out in an instant.

If the lifeboat B cannot be swung out due to sudden sinking, the button will be pressed and when the sea level reaches a predetermined position beyond the hydrostatic release 36 attached to the ship S via the bracket 35, the water pressure will automatically release the button. The hydrostatic release 36 is activated, the lashing wire 25 is loosened all at once, and the davit lashings are removed all at once by the same action as described above, and the lifeboat B remains on the sea surface even if the ship sinks.

(Effects of the invention) This invention connects a lifeboat suspended from a boat davit with one end of the lashing wire, which is placed around the front and rear of the lifeboat, to a trigger device provided on the frame, thereby engaging the frame and cradle. The other end of this lashing wire is hooked to one end of a rotatable arm provided on the frame, so that the davit and lifeboat can be detached from each other.
The other end is connected to another long lashing wire through a manila rope bundle and a slip hook, and the sheave unit fitted into the central hanging part of this lashing wire is attached to a part of the ship. Since it is connected to a fixed hydrostatic release so that it can be engaged and detached by sea water pressure or manually, in the event of a shipwreck, the rope bundle or slip hook installed in the middle of the lashing wire system can be untied, or the hydrostatic release can be manually released. By performing any one of these operations, the lashing wires are loosened all at once, and the connection between the freight and the cradle is also released at the same time, so that the lifeboat can be swung out and operated in an instant, and the lifeboat can be loaded with personnel and quickly You can leave the ship.

In the unlikely event that the lifeboat cannot be swung out in time due to sudden sinking, the hydrostatic release will be activated by the water pressure caused by the sinking, and the lashing wires will loosen all at once, allowing the lifeboat to remain on the sea surface even if the ship sinks. It is highly effective in saving lives in the event of an emergency shipwreck.

[Brief explanation of the drawing]

Figure 1 is a front view of a board davit implementing the present invention, Figure 2 is a side view of the same, Figure 3 is an enlarged front view of the arm part,
FIG. 4 is a front view of the lashing wire, FIG. 5 is an enlarged front view of the trigger device, FIG. 6 is a partially disclosed side view of the same, and FIG. 7 is a front view of another two lashing wires. (Explanation of symbols of main parts) 1... Port davit - simultaneous release device, 2...
...Port davit, 3...--Frame, 4.
...Cradle, 7...Arm, 8...
-...Hook, 10...Lashing wire 12...Trigger device, 17...90. Lever, 20, -0. -, Turnbuckle, 21-9. □
, hook, 22... pin, 24... rope bundle, 25... lashing wire, 27...
...Slip hook, 28 ...- Cross beam, 3
0... Guide, 32... Song guide, 33...
... Drooping part, 34 ... Sheave unit, 36
...Hydrostatic release, 38...
・・・・Rigging screw, B・Track・Lifeboat, S
・・・・・・The main ship.

Claims (1)

[Scope of utility model registration request] Arms 7 are attached to the upper parts of the frames 3, 3 at both ends of the boat S in the longitudinal direction of the boat davit 2 installed on the side of the boat S.
The lashing wires io and io are attached to the shaft 6 so as to be rotatable back and forth, and the upper ends are hooked to the hooks 8 at the outer ends of the respective arms T. 10. Trigger device 12゜12 with each tip of 10 fixed to frame 3, 3
A turnbuckle 20.20 is attached to the lower end of the lever 17, 17.
The hooks 2L 21 at the ends of the levers 17 and 17 can be freely engaged and detached from pins 22 and 22 implanted in the cradles 4 and 4, respectively, and the arms γ and 7
Rope bundle 2 made of manila rope whose upper end is connected to the inner end of
A cross beam 28 in which a long lashing wire 25 connected to the lower end of the frame 4 is installed between the frames 3 and 3.
A sheave unit 34 is hung on a hanging part 33 which is hung by rotating guides 30, 30 fixed near both ends of the transverse beam 28 and guides 32, 32 fixed near the center of this cross beam 28, and this sheave unit 34 and A port davit-simultaneous release device formed by connecting a hydrostatic release 36 fixed to a part of the ship S via a rigging screw 38.