JPS6047151B2 - Lifeboat release/recovery device - Google Patents

Description

Detailed Description of the Invention The present invention is designed to safely and quickly move a fully enclosed lifeboat from a ship in order to safely evacuate the ship in the event of a fire or sinking due to a ship accident, and to rescue the lives of the crew of a ship in distress. It also relates to a lifeboat release device for reliable release and recovery.

(Prior art) In order to release a conventional fully enclosed lifeboat from a ship such as a wrecked ship, the lifeboat is simply released directly from a slide, which is unsafe. Since the lifeboat was constructed to be retrieved via a large frame with a fulcrum, if the frame exceeded the fulcrum, the center of gravity would shift and the lifeboat would suddenly pivot onto the deck and land, which was extremely dangerous.

(Structure of the Invention) In view of the above-mentioned problems, the present invention has been developed by adding a trackway for a wheeled girder having a rearwardly inclined part on the stern deck to a trackway for a cradle that rolls in the longitudinal direction. A rotatable cradle with a rotatable body is installed, and the wire rope of the winch installed on the deck at the base of the wheeled garter is attached to the tower, which is also installed on the deck at the base of the wheeled garter. The attached sheave and multiple sheaves pivoted to the cradle are hung from the portal at the top of the cradle, and then attached to the top of the lifeboat placed on the cradle trackway via a floating block. The above-mentioned lifeboats, cradles, wheeled girders, trackways for cradles, trackways for wheeled girders,
The winch brakes can be engaged and disengaged from inside the boat or from the deck.The present invention will be explained with reference to the drawings of the embodiments.

In Figures 1 and 2, lifeboat release and recovery equipment 1
(hereinafter referred to as this device) is a device that connects two wheeled girder trackways 2, 2, which are installed parallel to each other toward the rear on the rear deck D of the ship S, to the rear inclined portion D'' of the rear deck D. The lower end 7 of the inclined part 3 is connected to the receiving bracket 8 by the legs 5 and 6 provided on the inclined part 3 and the horizontal part 4, respectively, which are inclined backward along the
It is fixed to the ship S by The upper ends of the left and right legs 10, 10, which are loosely fitted into the inclined parts 3, 3 of the wheeled girder trackways 2, 2 and have freely rolling rollers 9, 9 pivoted to their lower ends, Rollers 13, 13 which are respectively pivoted on the lower side of the rear of the horizontal girders 12, 12 supporting the lower side are loosely fitted into the horizontal part 4 of the wheeled girder trackway 2, so that they can roll freely. digit 12
On the upper side, a trackway 15 for a cradle having a downwardly inclined part 14 at the tip is fixed, and a girder 16 with wheels is installed.
form.

Supports on both sides of the portal frame 20 are attached to the upper ends of the bodies 18, 18, each of which has rollers 17, 17 which are loosely fitted into the cradle trackways 15, 15 and are pivoted to the lower ends of the front and back. 21, 21 are supported so as to be rotatable back and forth, an upper beam 22 and a lower beam 23 are respectively bridged to the upper and lower parts of this portal frame 20, and a sheave 25 is attached to a head 24 fixed to the center of this upper beam 22. , 25 are pivoted to form a cradle 26.

The rear of the girder 16 (to the right in Figure 1). ``A tower 27 was established on the rear deck D, and a winch 30 with a centrifugal brake 31 having a drum and a motor 29 was installed on the rear deck D below this tower 27, and was attached to the upper end of this tower 27. The sheave 32 is pivotally attached to the bearing 33.

A guard 11 for when the lifeboat C floats is attached to the upper and lower ends of the portal frame 2:,0, and a locking groove 35 in which a floating block 34 (to be described later) is locked is provided at the front of the head 24. be. A wire lobe 36 whose proximal end is tied to the drum 28 of the winch 30 is wrapped around the sheave 32 on the tower 27, and is further wrapped around the lower beam 23 of the cradle 26.
Two sets of sheaves 38, 38 and 39, 39, which are each pivoted on a pillar 37 fixed in the central part of the block, are hung around, and the floating block 34 is suspended from the tip.

This floating block 34 has the head 24 at the top.
A support 40 that engages with a locking groove 35 and a lifeboat C at the bottom.
A sheave 43 is pivoted inside a casing 42 provided with a ring 41 that locks onto a boat hook F.

A lock lever 46 of a main flock 45 operated by a hydraulic cylinder 44 is provided on the side surface of the inclined part 3 of the wheeled girder trackway 2 so as to be able to move toward and away from the main lock par 47 fixed to the leg 10. A boat lock 52 has a lock lever 50 of a body lock 49 which is operated by a hydraulic cylinder 48 provided on the side of the cradle 26 and can be freely moved in and out of the front surface of the body 18 of the cradle 26, and has a hydraulic cylinder 51 provided in the front surface of the body 18. Fastener P
can be freely engaged and detached from the boat lock lever 53 of the lifeboat C.

Sheaves 55, 56 have remote control wires 54 for removing the brake, the base ends of which are connected to the drum 28 of the centrifugal brake winch 30, pivoted on the rear deck D.
A sheave 57 that is pivoted to the top of the tower 27 is hung around, and a sheave 63 that is pivoted to the top of the portal frame 20 is hung around and a handle 58 is tied to the tip and hung.

Slide plates B on both sides of the center of the fully enclosed lifeboat C,
A large number of spheres 59, 59, .

A roller 64 has an auto releaser 60, 60 fixed on the rear deck D that is automatically released by water pressure, and a lashing wire 62, which is hung between the rollers 61, 61, is pivoted to the cradle trackway 15, 15, 65
Hang them around and tie them to the front and back of the upper part of lifeboat C. In the figure, 66 is a guide roller, 67 is a platform, 68 is a rudder, 69 is a pump unit, 70 is a hydraulic cylinder (of a girder lock), 71 is a girder lock, 72 is a lock lever (of a girder lock), 73 is an auxiliary winch, 74 is the auxiliary wire lobe, 75 is the auxiliary floating block, 76 is the sheave, 77 is the hydraulic cylinder (for the boat hook), 78 is the boat hook lock, 79 is the lock lever (for the boat hook), F'' is the auxiliary boat hook, and L , L2 indicates a limit valve, and W indicates a water surface. (Operations of the Invention) The operations of the present invention will be explained by listing each operation using examples and drawings.

(1) Free levitation 5 In Figures 3 and 4, after the crew members are transferred, the ship S sinks without any free fall, and when the rear deck D reaches a predetermined depth below the water surface W, the water pressure Therefore, the auto releaser 60 fixed on the rear deck D is activated, the latching wire 1 (62) is released, and the lifeboat C floats above the water surface W.

At this time, the rear upper surface of the lifeboat is attached to the portal frame 2 of the cradle 26.
0, and pushes up the columns 21, 21 of the portal frame 20 upward in the direction of arrow R. be almost vertical. The lifeboat C that has surfaced on the water surface W starts its own engine (not shown) and escapes from the ship S. (2) Free fall launch In Figures 5 to 7, the lashing wire 62
When the slip hook (not shown) of the floating block 34 is manually released, the floating block 34 is lowered by the hydraulic cylinder 77 and is locked with the boat hook F of the lifeboat C.

Next, the occupant is transferred to the lifeboat C, the main lock 45 is opened by operating the hydraulic switching valve 2 bar (not shown) inside the boat and the hydraulic cylinder 44, and the main lock 45 is opened from inside the boat via the pull string of the remote control wire 54. When the brake 31 of the winch with brake 30 is removed, the winch 30
The wire rope 36 extends freely even when the cradle 26 moves forward. That is, when the inner valve lever is set to the main lock open position, the direction switching valve (not shown) of the pump unit 69 placed on the deck is switched, and the hydraulic pressure of the main lock 45 is switched. Since the hydraulic pressure inside the ring 44 is released to the pump unit, lifeboat C and cradle 2
The wheeled girder 16 on which the girder 6 is placed begins to descend under its own weight, and the main lock parr 47 attached to the wheeled girder 16
pushes down the lock lever 46, and the rollers 9 in the inclined part 3 of the wheeled girder trackway 2 begin to roll diagonally downward in the inclined part 3, and at the same time, the rollers 13 at the rear of the wheeled girder 16 The wheeled girder 16 moves forward on the wheeled girder trackway 2 with the lifeboat C and cradle 26 placed thereon, and the wheeled girder 16 rolls forward in the horizontal section 4 of the trackway 2 for wheeled girders. When the roller 9 reaches the lower end 7 of the inclined part 3, it stops. The lifeboat C is supported by slide plates B, B on both sides of the lifeboat C on a large number of spheres 59 arranged on the cradle trackways 15, 15 on the upper surface of the wheeled girder 16, so that When the pull cord is pulled, the brake 31 of the winch with brake 30 is released, and the wire lobe 36
to remove the tension on the floating block 34.

When the hydraulic pressure switching valve lever inside the boat is placed in the boat hook lock release position and a manual pump (none of which is shown) inside the boat is operated, the boat hook F is unlocked. Furthermore, when the hydraulic switching valve lever inside the boat is placed in the floating block open position and the manual pump inside the boat is activated, the floating block 34 moves upward, and the floating block 34 and lifeboat C are completely opened. . When the hydraulic switching valve lever inside the boat is placed in the boat lock release position and the manual pump inside the boat is activated, lifeboat C and cradle 26 are released.
The board lock with the body 18 is released.

However, since the body lock 49 is not released, the cradle 26 is fixed to the rear part of the wheeled girder 16, and the lifeboat C slides on the spheres 59, 59, etc., and the lifeboat C slides on the water surface W behind the ship S. Free fall upwards, rush in and rise to the surface. Next, the engine of the lifeboat C (not shown) is started and the lifeboat C escapes from the ship S. (3) Gravity drop launch Figures 8 to 1
0, when the slip hook (not shown) of the latching wire 62 is manually released, the floating block 34 is lowered by the hydraulic cylinder 77 and is locked with the boat hook F of the lifeboat C.

Next, when the crew is transferred to lifeboat C and the hydraulic switching valve lever (not shown) inside the boat is set to the main lock release position, the direction switching valve (not shown) of the pump unit 69 placed on the deck is switched. Since the hydraulic oil in the hydraulic cylinder 44 of the main lock 45 escapes to the pump unit, the main lock 45 is opened, and the remote control wire 54 from inside the boat is pulled through the pull string to release the brake 31 of the winch with brake 30. When the wire robe 36 of the winch 30 is removed, the wire robe 36 of the winch 30 is
It loosens due to the actual weight of the wheeled girder 16 on which it is placed.
The main lock lever 47 attached to the wheeled girder 16 pushes down the lock lever 46, and the roller 9 in the inclined part 3 of the wheeled girder trackway 2
At the same time, the wheeled girder 1 begins to roll diagonally downward.
The roller 13 at the rear of the wheeled girder 6 rolls forward within the horizontal section 4 of the wheeled girder trackway 2, and the wheeled girder 1
6 moves forward on the wheeled girder trackway 2 with the lifeboat C and cradle 26 placed thereon, and stops when the front roller 9 reaches the lower end 7 of the inclined part 3.
The lifeboat C is supported by slide plates B, B on both sides of the lifeboat C on a large number of spheres 59 arranged on the cradle trackways 15, 15 on the top surface of the wheeled girder 16. When the drawstring is pulled, the brake 31 of the brake winch 30 is released, loosening the wire lobe 36 and taking the tension off the floating block 34. When the hydraulic switching valve lever inside the boat is placed in the boat lock release position and the manual pump inside the boat is activated, the boat lock 5 between the lifeboat C and the body 18 of the cradle 26 is activated.
2 is unlocked and lifeboat C moves forward slightly.

Furthermore, when the hydraulic switching valve lever inside the boat is placed in the body lock open position and the manual pump inside the boat is activated, the hydraulic cylinder 48 of the body lock 49 that connects the body 18 of the cradle 26 and the wheeled girder trackway 2 is released. When the brake lever 31 of the winch 30 is loosened by pulling the remote control wire 54 from inside the boat (not shown), the lock lever 50 is pulled down by gravity, and the cradle 26 and wheeled girder 2 are pulled down. The lifeboat C and the cradle 26 descend together on the wheeled girder trackway 2, and the wheeled girder 16 reaches the lowest position.Then, the cradle 26 stops and at the same time the lifeboat C and the cradle 26 descend together on the wheeled girder trackway 2. 26 move together on the cradle trackways 15, 15 to the swinging position. Furthermore, when the pull cord is operated to loosen the brake cylinder of the winch with brake 30, the wire lobe 3
6 is gradually extended and the lifeboat C is lowered onto the water surface W.

When the lifeboat C is lowered to the water surface W, the hydraulic switching valve inside the boat is set to the boat hook lock release position, and the manual pump inside the boat (both not shown) is activated, the boat hook F is unlocked and floating. The ring 41 at the bottom of the block 34 and the boat hook F are uncoupled.

Start the engine of lifeboat C and escape from ship S.
1) Winch hoisting type recovery In Figures 11 to 13, when the main switch of the recovery operation panel (not shown) on the rear deck D is set to 0N and the recovery direction switching valve lever is placed in the girder lock position,
Due to the operation of the hydraulic cylinder 70, the wheeled girder 16
The wheeled girder 16 is fixed to the wheeled girder trackway 2 with the front roller 9 reaching the lower end 7 of the inclined part 3.

Next, the boat hook F and the cradle 26 on the top of the lifeboat C.
Floating block 34 suspended from the tip of
The lifeboat C is hoisted up from the water surface W by applying hydraulic pressure to the hydraulic motor 29 of the winch 30 with a brake.

On the way, the auxiliary block 75 of the auxiliary wire robe 74 suspended from the auxiliary winch 73 via the tip sheave 76 of the cradle 26 is connected to the auxiliary boat hook F'' installed at the rear of the lifeboat C to prevent the lifeboat C from rotating. Hoist lifeboat C while preventing it.

When the winch 30 continues to hoist the lifeboat C and the cradle 26 together, they reach the rear end of the wheeled girder 16 on the forward-inclined cradle trackways 15, 15, and the limit valve L1 operates to stop hoisting. Then, the hydraulic cylinder 48 is activated, the body lock 49 is locked, and the body 18 of the cradle 26 and the wheeled girder 1 are locked.
6 is fixed, and girder lock 71 is secured by hydraulic operation.
to open.

Next, when hydraulic pressure is applied to the hydraulic motor 29 of the winch 30 with a brake, the lifeboat C1 body 18 and the wheeled girder 16 are moved by the winch 30 via the wire lobes 36 to the storage position.

When the wheeled girder 16 reaches the storage position of the wheeled girder trackway 2, a limit valve is activated to automatically stop the winch 30. Next, when the recovery direction switching lever is placed in the main lock position, the wheeled girder 16 is placed in the retracted state by the operation of the hydraulic cylinder 44.
Fix to trackway 2 for wheeled girder.

Furthermore, when the recovery direction switching valve lever is placed in the boat lock position, the lifeboat C and the body 18 are fixed by the operation of the hydraulic cylinder 51. Next, loosen the brake 31 of the winch with brake 30, and release the floating block 34.
Lower it slightly due to its own weight, and attach boat hook F and ring 4.
1 to a position where it can be easily opened, and the hydraulic switching valve lever inside the boat to the floating lock open position.
When the manual pump inside the boat is operated, the floating block 34 is moved upward by the hydraulic cylinder 77, and the floating block 34 and the lifeboat C are completely opened.

(Effects of the Invention) The present invention provides a wheeled girder trackway having a rearwardly inclined portion installed at the stern of the ship, and an upper part of the wheeled girder that rolls in the front and rear directions on this wheeled girder trackway. A lifeboat is slidably placed on the wheeled girder, a cradle that can freely roll forward and backward is placed on the rear of the wheeled girder, and a wire lobe of a winch with a brake is placed on the deck at the base of the wheeled girder. The sheave of the tower installed above and the multiple sheaves installed on the cradle are hung from the top of the cradle, and a floating block is attached to the lower end of the sheave, and the remote control wire for removing the winch brake is connected to the tower and cradle. The sheaves provided at each part are hung around, a handle is attached to the tip of the sheave, and both ends of the latching wire, which is hung from the auto releaser on the deck, are tied to the lifeboat.
It is possible to engage and disengage the wheeled girder trackway and the wheeled girder, engage and disengage the wheeled girder and the cradle, engage and disengage the cradle and the lifeboat, and engage and disengage the floating block and the lifeboat using in-boat operations. I did it like this,
In the event of an emergency sinking of the ship, free ascent is automatically performed, free-fall launching of lifeboats and gravity-drop launching are carried out quickly, reliably and safely, and winch-hoisting recovery is extremely safe. The present invention is unique in that the above four types of work can be performed reliably, safely and quickly depending on the situation.

[Brief explanation of the drawing]

FIG. 1 is a front view of an embodiment of the present invention, FIG. 2 is a side view of the same,
Figures 3 and 4 are diagrams for explaining the function of free floating according to the present invention, Figures 5 to 7 are diagrams for explaining the function of free-fall launching, and Figures 8 to 10 are diagrams for explaining gravity descent. FIGS. 11 to 13 are explanatory diagrams of the action of the winch hoisting method. (Explanation of symbols of main parts), 1...Lifeboat release and recovery device, 2...Trackway for wheeled girder, 3...Slope part, 4... ...Horizontal part, 5...Legs, 6...Leg, 7...Lower end, 8...Bracket, 9...Roller ( front), 10... Legs, 11... Guard,
2... Digit, 13... Roller (rear)
, 14... Downward tilting part, 15... Trackway for cradle, 16... Wheeled girder, 17...
...Roller 18...Body, 19...
...shaft, 20...portal frame, 21...post,
22...Upper beam, 23...Lower beam, 24...
・Head, 25... Sheave, 26... Cradle, 27... Tower, 28...
Drum, 29...Motor (hydraulic type), 30.
...Winch with centrifugal brake, 31...
・Brake (disc type), 32... Sheave, 33
... Bearing, 34 ... Floating block, 35 ... Locking groove, 36h ... Wire lobe, 37 ... Support column, 38 ... Sheave, 3
9...Wave, 40...Support (floating block), 41...Ring (floating block), 42...Casing,
43... Sheave (floating block), 4
4...Gate hydraulic cylinder (main lock), 45.
...Main lock, 46...Lock lever (main lock), 47...Main lock par, 48.
...Hydraulic cylinder (body lock), 49...
...Body lock, 50...Lock lever (body lock)) 51...Hydraulic cylinder (board lock), 52...Boat lock, 53...
・Lock lever (boat lock), 54...Remote control wire, 55...Sheave (
for control wire), 56... sheave (
For control wire) 50... Sheave (for control wire) 58... Handle, 59.
... Sphere, 60 ... Auto releaser, 61.
...Roller, 62...Lashing wire, 63...Sheave (for control wire),
64...Roller (lashing wire), 65
・ (Roller lashing wire), 66...
Guide roller, 60...Platform, 68
...Ladder, 69 ...Pump unit, 7
0... Hydraulic cylinder (with girder lock 71...
...Guarder lock, 72...Lock lever (
girder lock), 73... Auxiliary winch, 7
4... Auxiliary wire lobe, 75... Auxiliary floating block, 76... Sheave, 77
・・・・・・Hydraulic cylinder (boat hook), 78・
...Boat hook lock, 79...Lock lever (boat hook), W...Water surface, P...
・・Boat fastener, L1・・Limit valve, L3・・・Limit valve, F・・・Boat hook, C・・・Lifeboat, B・・・・・・Slide plate, D''... Rear inclined part, D...
・Aft deck, S...main ship, F''...auxiliary boat hook.

Claims (1)

[Claims] 1. A wheeled girder trackway that faces rearward on the rear deck of the ship and consists of a downwardly sloping slope part and a horizontal part, and a wheeled girder that has rollers that can freely roll on this wheeled girder trackway. A trackway for the cradle is provided on this wheeled garter, and a body is provided with a roller that rolls on the trackway for the cradle. A sheave pivoted on the head, a winch with a brake installed on the deck at the base of the wheeled girder trackway, and a floating block suspended from the sheave at the head of the central part of the upper beam of the portal frame. a main lock that engages and disengages the wheeled girder and the wheeled garter trackway; a body lock that engages and disengages the cradle body and the cradle trackway;
A boat lock that engages and disengages the lifeboat from the cradle, a control device from inside the boat for engaging and disengaging each of these locks and the winch with a brake, and an auto releaser operated by water pressure installed on the deck; A lifeboat release/retrieval device characterized by forming a series of systems including a latching wire for tying the lifeboat through an auto releaser.