JP2001191979A - Connecting tool of rope for lifeboat device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a connecting tool capable of removing the rope connecting a mother ship side and a lifeboat from the lifeboat easily, safely, and quickly, capable of separating the lifeboat from the mother ship in an emergency, and requiring no replacement of the rope in training because the rope is not required to be cut off. SOLUTION: Coupling recesses 7, 8 couplable with each other rotatably integrally and releasably in the axial direction are formed on a pair of screw shafts 5, 6 capable of being screwed to a nut 11 provided on the hull of a lifeboat. A connecting ring 9 connecting a confining wire rope 4 to the tip section of the outside screw shaft 6 is fitted rotatably around the axis. A handle 10 is integrally provided on the base section of the inside screw shaft 5.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a life-saving boat device used by a passenger or crew member of a ship to retreat when an emergency such as a fire or collision of the ship occurs. BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connector for a cable for a lifeboat device used for connecting a cable such as a restraining cable for mooring a lifeboat to a lifeboat, and a cable such as a mooring cable for mooring the lifeboat to a mother ship.

[0002]

2. Description of the Related Art Conventionally, radial type, luffing type,
Various lifeboat devices such as gravity type are known. In any of these lifeboat devices, the end of a restraining wire rope that raises and lowers the lifeboat with respect to the mother ship is detachably connected to a connector such as a hook attached to the hull of the lifeboat.

[0003]

However, in any of the above lifeboat devices, after the lifeboat is lowered from the mother ship, it is determined whether the passenger or crew of the lifeboat goes out of the lifeboat. Alternatively, the restraining wire rope must be disengaged from the lifeboat's couplings, especially when working outside the lifeboat oscillating at sea, which is difficult and time-consuming, and impedes immediate removal from the mother ship. It has become. In addition, there is a serious danger that the operator's finger may be caught between the connecting tool and the restraining wire rope, thereby cutting off the finger. It is conceivable to cut the restraining wire rope, but it is impossible to cut it without special tools, and even if tools are provided, cutting work outside the lifeboat is difficult as above Not only is it dangerous, but it cannot be cut because training requires replacement of the restraining wire rope.

An object of the present invention is to solve the above-mentioned conventional problems. After a lifeboat is lowered from a mother ship to the sea surface, a cable connecting the mother ship and the lifeboat is connected. The detachment can be performed only by rotating the screw shaft in the lifeboat. Therefore, the detachment operation can be easily, safely, and quickly performed by anyone without requiring training, and the lifeboat can be detached. A connector for a cable for a lifeboat device, which can be urgently separated from the mother ship, does not need to cut the cable, and does not require replacement of the cable during training. Is to provide.

[0005]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, a connector for a cable for a lifeboat device according to the present invention is screwed into a female screw provided on a hull of a lifeboat and rotated integrally with each other. Possible, and a pair of screw shafts having an engaging portion that can be detachably engaged in the axial direction, and a connecting portion that is integrally provided at the distal end portion of the external screw shaft and connects the cords, And a rotation operation unit integrally provided on the base of the screw shaft on the inner side.

According to another aspect of the present invention, there is provided a connecting member for a cable for a lifeboat device according to the present invention, wherein the rotatable operation unit integrally provided at the tip of the screw shaft on the outside is provided. It is provided.

[0007] In each of the above structures, it is preferable that the connecting portion is configured to be rotatable around the axis of the screw shaft.

According to the present invention configured as described above,
After lowering the lifeboat from the mother ship, by rotating the screw shaft on the inner side in the lifeboat by using the rotary operation part,
The two screw shafts are rotated integrally with the female screw of the hull, and the outer screw shaft is separated from the female screw, whereby the engaging portion is also separated from the inner engaging portion and separated, and the outer screw is removed. The cord connected to the connecting member of the shaft can be removed from the lifeboat. In this manner, the cord connecting the mother ship and the lifeboat can be detached only by rotating the screw shaft in the lifeboat.

[0009]

Embodiments of the present invention will be described below with reference to the drawings. First, a first embodiment of the present invention will be described. FIGS. 1 to 4 show a connecting tool suitable for connecting a restraining wire rope according to a first embodiment of the present invention. FIG. 2 is a partially cutaway side view in a state where operation is restricted, FIG. 3 is a front view in the same state, and FIG. 4 is a partial perspective view in an exploded state.

As shown in FIGS. 1 to 4, a connecting tool 1 of the present embodiment comprises a wire rope 4 for restraining at two front and rear portions (see FIGS. 10 and 12) at the top of a hull 3 of a lifeboat 2.
Are detachably connected to each other. Describing in detail, the pair of screw shafts 5 and 6 have external threads in the same direction,
The cross-shaped engaging recess 7 formed on the distal end surface of the screw shaft 5 and the cross-shaped engaging protrusion 8 formed on the base end surface of the screw shaft 6 integrally rotate as one screw shaft. And an engaging projection 7 and an engaging projection 8
Are separated from each other in the axial direction. The engaging recess 7 and the engaging projection 8 may be axially symmetrical as shown in the illustrated example, but are formed in an asymmetrical shape such that the screw shafts 5 and 6 are always connected in a fixed posture in a connected state. Is preferred.

A base of a connecting ring 9 is attached to the distal end surface of the screw shaft 6 so as to be rotatable around the axis of the screw shaft 6.
A handle 10 for rotating operation is welded to the base of the screw shaft 5,
It is provided integrally by screwing or the like. These screw shafts 5 and 6 are screwed to a nut 11 formed so as to penetrate inward and outward at the top of the hull 3 in a connection state in which the engagement concave portion 7 and the engagement projection 8 are engaged. Thereby, it is integrally held as one screw shaft.

A base of a handle 13 is supported by a horizontal shaft 14 so as to be vertically rotatable inside a forked portion 12 formed in a part of the handle 10. This handle 13
Is restricted by the operation restricting means 15 provided on the inner surface of the top of the hull 3. As an example, a pair of holding plates 16 are integrally provided on the inner surface of the top portion of the hull 3 in a state where the holding plates 16 are arranged side by side at intervals in the rotation direction of the handle 10. Recessed holes 17 are formed in each holding plate 16 so as to face each other. A compression spring 18 and a sphere 19 are inserted into each of the recessed holes 17, and a retaining plate 20 is provided on the open side outer peripheral portion of the recessed hole 17. The sphere 19, which is integrally provided and urged forward by the elasticity of the compression spring 18, is partially prevented from falling off by the retaining plate 20 in a state of protruding from the recessed hole 17 and the hole of the retaining plate 20. I have. When the handle 13 is rotated upward about the shaft 14, the engaging recess 21 formed at the tip of the handle 13 is resiliently engaged with the sphere 19, and the handle 10 is rotated. It is possible to keep the operation in a restricted state. Conversely, the engaging recess 21 of the handle 13 is forcibly disengaged from the sphere 19 by utilizing the elasticity of the compression spring 18, and the handle 13 is rotated downward about the shaft 14, whereby the handle 13 The handle 10 and the screw shafts 5, 6 can be integrally rotated. Then, by rotating the screw shafts 5 and 6 so as to rise outward from the top of the hull 3, the outer screw shaft 6 can be detached from the nut 11 and separated from the inner screw shaft 5. it can. One end of the wire rope 4 is connected to the connecting ring 9 of the outwardly protruding portion of the screw shaft 6 located outside of the screw shafts 5 and 6 integrally screwed to the nut 11 as described above. ing.

Next, a second embodiment of the present invention will be described. 5 to 8 show a connecting tool suitable for connecting a mooring wire rope according to a second embodiment of the present invention. FIG. 5 is a partially broken view showing a state in which the apparatus is attached to a hull and operation restriction is released. FIG. 6 is a partially cutaway front view in a state where operation is restricted, FIG. 7 is a front view in the same state, and FIG. 8 is a partial perspective view in an exploded state.

As shown in FIG. 5 to FIG. 8, the connecting tool 22 of this embodiment connects an end of a mooring wire rope 23 to the central part of the hull 3 of the lifeboat 2 on the side of the boat so as to be detachable. To explain in detail, the pair of screw shafts 24 and 25 have external threads in the same direction, and have a pyramid-shaped and axially asymmetric engagement recess 26 formed on the distal end surface of the screw shaft 24 and the screw shaft 2.
5 is combined with a pyramid-shaped and axially asymmetrical engagement projection 27 formed on the base end surface so as to be integrally rotatable as a single screw shaft. The projection 27 separates from each other in the axial direction. By forming the engaging recess 26 and the engaging projection 27 in an asymmetric shape as shown in the illustrated example, the screw shafts 24 and 25 can always be combined in a connected state in a fixed posture. , 25 may be formed in an axially symmetric shape as long as they do not need to be combined in a fixed posture.

A flange 28 is integrally provided at an intermediate portion of the screw shaft 25, and a base of a connecting ring 29 is attached to a distal end surface of the screw shaft 25 so as to be rotatable around the axis of the screw shaft 25.
A handle 30 for rotating operation is integrally provided at the tip of the screw shaft 25 by welding, screwing, or the like.
Is provided with a handle 31. A handle 32 for rotating operation is integrally provided at the base of the screw shaft 24 by welding, screwing, or the like. These screw shafts 24 and 25 are screwed to a nut 33 formed to penetrate inward and outward at the center part of the hull 3 on the side of the hull 3 in a connection state in which the engagement concave portion 26 and the engagement protrusion 27 are engaged. By doing so, it is configured to be integrally held as one screw shaft. At this time, the outer screw shaft 25 is protected from the rust from rainwater or seawater by the flange 28 being in contact with the receiving surface 34 on the front surface of the nut 33 on the side of the ship. The nut 33 is set so as to be located above the water line.

A base of a handle 36 is supported by a vertical shaft 37 so as to be rotatable in the horizontal direction inside a forked portion 35 formed on a part of the handle 32. This handle 36
Is provided on the inner side of the boat side of the hull 3, and the operation restricting means 1
The operation is restricted by the same operation restricting means 38 as in FIG. 5 (note that the same parts of the operation restricting means 38 as those of the operation restricting means 15 are denoted by the same reference numerals and description thereof is omitted). By rotating the handle 36 in the horizontal direction about the shaft 37, the handle 36 can be held in the operation restriction state in which the handle 32 cannot be rotated by the operation restriction means 38. I have. Conversely, the handle 36 is detached from the operation restricting means 38 and the shaft 37
, The handle 32, the screw shafts 24, 25
Can be integrally rotated. And screw shaft 2
The outer screw shaft 25 can be separated from the inner screw shaft 24 while the outer screw shaft 25 is separated from the nut 33 by rotating the fourth and 25 so as to protrude outward on the side of the hull 3. One end of the wire rope 23 is connected to the connection ring 29 of the outwardly protruding portion of the screw shaft 25 located outside of the screw shafts 24 and 25 integrally screwed to the nut 33 as described above. ing.

Next, an example of a lifeboat device to which the couplers 1 and 22 of the present embodiment are applied will be described with reference to FIGS. 9 is a front view of a state where the lifeboat is stored in the mother ship, FIG. 10 is a side view of the same state, FIG. 11 is a front view of a state where the lifeboat is lowered from the mother ship, and FIG. 12 is a side view of the same state. is there.

As shown in FIGS. 9 to 12, the lifeboat device 41 is provided at a position near the side of the ship side 44 on the deck 43 of the mother ship 42, and the lifeboat device 41 mounts the lifeboat 2 on the deck 43 of the mother ship 42. And the mother ship 4
It can be located outside the second side 44 and lowered to sea level. In the lifesaving boat 2, the hull 3 is configured as a hermetic type, an engagement axial protrusion 45 projecting forward is integrally provided at the bow, and an engagement axial protrusion 46 projecting rearward at the stern. Are provided integrally.

A gantry 47 is fixed to a position on the deck 43 of the mother ship 42 near the side of the ship side 44. In the gantry 47, columns 49 are erected on both sides of a base frame 48 fixed on the deck 43, and a support frame 50 is integrally provided between upper portions of the columns 49. A rotating shaft 51 is rotatably supported between the lower ends of the struts 49 in parallel with the shore side line, and a base of a supporting arm 52 is fixed on both sides of the rotating shaft 51 and located inside each strut 49. The support arm 52 can be turned up and down integrally by the rotation shaft 51. Each support arm 52 has a holding portion 53 at its tip. Each holding part 53 is a lifeboat 2
Has a groove-like portion 54 that can move the axial protrusions 45 and 46, and the leading end of the groove-like portion 54 is formed in a guide portion 55 that gradually expands toward the leading end side. Then, with the support arm 52 raised, the guide portion 55 is located upward on the deck 43 and is opened upward, and the axial protrusions 45 and 46 of the lifeboat 2 engage with the back side of the groove portion 54. Then, the lifeboat 2 is held in a retracted state above the deck 43 (see FIGS. 9 and 10), and in a state where the support arm 52 is tilted in the horizontal direction,
The leading end side is protruded outward from the side of the shore 44, and as the groove-shaped portion 54 reaches the leading end side, it is gradually and gradually inclined downward,
The guide 55 is opened downward, and the lifeboat 2 is positioned outside the side of the shore 44.
4 and is set to be released from the guide portion 55 (see FIGS. 11 and 12).

The support frame 50 of the gantry 47 has a rotating shaft 5
A rotation shaft 56 is rotatably supported in parallel with the rotation shaft 1. On this rotating shaft 56, a rotating body, for example, a reel 57, is fixed corresponding to each connecting tool 1. The other end of each wire rope 4 is connected to a reel 57, and the lifeboat 2 is raised by winding each wire rope 4 around the reel 57,
The lifeboat 2 is lowered by unwinding each wire rope 4 from the reel 57. Two shafts 58 parallel to the rotation shaft 51 are provided between the intermediate portions of the two support arms 52,
A base 59 of a pair of auxiliary arms 60 is connected to an intermediate portion between the shafts 58 and 59. Each auxiliary arm 60
A pulley 61 is rotatably supported at the tip of the lifeboat 2.
The movement of the wire rope 4 is guided between the connecting tool 1 and the reel 57.

On the side of the rotating shaft 56, a rotating body, for example,
The reel 62 is fixed. A rotating body, for example, a drum 64 of a winch 63 is rotatably supported by the support frame 50 of the gantry 47 behind the reel 62, and the drum 6
4 is rotated by a handle 67 via reduction gears 65 and 66. One end of a wire rope 68 which is a hoisting rope is connected to the reel 62, and the other end of the wire rope 68 is connected to the drum 64. And handle 6
7, the drum 64 is rotated via the reduction gears 66 and 65, and the wire rope 68 unwound from the reel 62 is wound around the drum 64, so that the rotating shaft 56 and the reel 57 are rotated and the wire rope 4 is rotated. Is wound on a reel 57, and the lifeboat 2 is raised. Conversely, the wire rope 4 is paid out from the reel 57 by the weight of the lifeboat 2, so that the rotating shaft 56 and the reel 62 are rotated in the opposite direction to the above, and the wire rope 68 drawn out from the drum 64 is moved. It can be wound around a reel 62. A case 69 is attached to the support frame 50 at the outer periphery of the end of the rotating shaft 56, and a damper grease (not shown) is sealed in the case 69. Then, as described above, the wire rope 4 is paid out from the reel 57, and the reel 57, the rotating shaft 56
When the lifeboat 2 descends by being rotated, the rotation speed of the rotation shaft 56 and the like due to the viscous resistance of the damper grease, that is,
By reducing the feeding speed of the wire rope 68, the descent speed of the lifeboat 2 is reduced.

Both ends of a support shaft 70 parallel to the rotation shaft 51 are fixed between the intermediate portions of the support 49. A base of a pair of lock levers 71 is rotatably supported on an intermediate portion of the support shaft 70. At the tip of each lock lever 71, an engagement recess 72 is formed which can be detachably engaged with the shaft 59. Then, in the retracted state of the lifeboat 2 with the support arm 52 raised as described above, the engagement recess 72 of the lock lever 71 is engaged with the shaft 59 that rotates integrally with the support arm 52 and the like,
The support arm 52, the lifeboat 2, and the like are locked in the retracted state (see FIGS. 9 and 10). Conversely, when the engagement concave portion 72 of the lock lever 71 is detached from the shaft 59, the lock of the support arm 52, the lifeboat 2, and the like is released (see FIGS. 11 and 12). Therefore, this locking means is used for releasing the locked state of the lifeboat 2 from the mother ship 42 side.

A drum 74 of a winch 73 is rotatably supported on the support frame 50 of the gantry 47. The drum 74 is rotated by a handle 77 via reduction gears 75 and 76. The wire rope 23 is attached to the drum 74.
Is wound up so that it can be extended. By rotating the drum 74 via the reduction gears 75 and 76 by the handle 77 of the winch 73, the wire rope 23 can be wound around the drum 74 and the wire rope 23 can be tensioned. The rotation of the drum 74 of the winch 73 is normally restricted by a rotation restricting means (not shown) in the feeding direction of the wire rope 23, and the drum 74 is configured to be rotated by releasing the rotation restricting means. This locking means
It is used to release the locked state of the lifeboat 2 from within the lifeboat 2.

Next, the operation of the above embodiment of the present invention will be described together with the operation of the lifesaving boat device. The screw shafts 5 and 6 will be connected to the nuts 11 of the lifesaving boat 2 by the engagement between the engagement recess 7 and the engagement projection 8. Screwed together in the mating state, and the drum 64 of the winch 63
To wind the wire rope 68 from the reel 62 onto the drum 64. Accordingly, the rotating shaft 56 and the reel 57
Is rotated to wind the wire rope 4 connected to the connection ring 9 of the screw shaft 6 around the reel 57. This makes lifeboat 2
As shown in FIGS. 11 and 12, the bows and stern axial projections 45 and 46 of the lifeboat 2 are
4, the support arm 52 is rotated and raised as the lifeboat 2 rises, and the shaft-shaped projections 45 and 46 are engaged with the depth side of the groove-shaped portion 54 to thereby raise the lifeboat 2 Is stored above the deck 43 of the mother ship 42 as shown in FIGS.

The engagement recess 72 of the lock lever 71
Is engaged with a shaft 59 integrated with the support arm 52 to hold the support arm 52, that is, the stored lifeboat 2 in a locked state. At the same time, screw shafts 24 and 25 are attached to nut 33 of lifeboat 2.
Are integrally screwed together with the engagement concave portion 26 and the engagement projection 27 to rotate the drum 74 of the winch 73 to connect the wire rope 23 connected to the connection ring 29 of the screw shaft 25.
Is wound on a drum 74 and held in tension,
Is held in a locked state. By engaging the axial projections 45 and 46 of the lifeboat 2 with the groove portions 54 of the support arm 52 in this manner, the lifeboat 2 can be held in a stable storage state.

Now, if an emergency such as a fire occurs in the mother ship 42, passengers or the like board the lifeboat 2 held in a stowed state from a boarding port (not shown) using a desired boarding means. I do. At this time, since the lifesaving boat 2 is held in a stable state by the support arm 52 as described above, passengers and the like can easily, quickly, and safely board. First, a crew member boarding this lifeboat 2 or a crew member boarding another lifeboat 2 rotates the lock lever 71 on the mother ship 42 side to disengage the engagement recess 72 from the shaft 59. Then, the locked state of the support arm 52 is released. In this state, the lifeboat 2 is moored to the gantry 47 of the mother ship 42 by the wire rope 23, and is still held in a locked state. Therefore, when the crew or the like who gets on last performs the detaching operation of the lock lever 71 as described above, the crew or the like then gets on the lifesaving boat 2 from the boarding port. Next, a crew or the like on the lifeboat 2 removes the handle 36 from the operation restricting means 38 in the lifeboat 2 (FIG. 5).
), The screw shafts 24 and 25 are integrally rotated by operating the handle 36, and are moved outward with respect to the nut 33.
When the outer screw shaft 25 is detached from the nut 33, the engaging projection 27 is detached from the engaging concave portion 26 of the inner screw shaft 24, and the screw shaft 25 is separated from the screw shaft 24. That is, the lifeboat 2 is released from the mooring state by the wire rope 23. In this separated state, the screw shaft 25 is connected to the wire rope 2
3, there is no risk of loss.

In this way, the lifeboat 2 is unlocked from the lifeboat 2 at the final stage, so that everyone can safely and reliably board the lifeboat 2 which is held in a stable state. When the lifeboat 2 is unlocked, the lifeboat 2 starts descending by its own weight. At this time, since the winch 63 is not locked and the drum 64 can rotate freely, the reel 57 and the rotating shaft 56 are pulled by being pulled by the wire rope 4 and the wire rope 4 is paid out from the reel 57. At the same time, the wire rope 68 wound around the drum 64 of the winch 63 becomes
And wound up on the reel 62. As the wire rope 4 is paid out from the reel 57 as described above, the life-saving boat 2 has its axial projections 45 and 46 attached to the support arms 52.
, The support arm 52 is lowered while rotating the support arm 52 downward. As shown in FIG. 11 and FIG.
4, the shaft-like protrusions 45 and 46 become groove-like portions 5.
4 and moves away from the guide portion 55 which is opened downward. Therefore, the lifeboat 2 is guided in a stable state by the support arm 52 up to the outer position on the side 44 of the mother ship 42, and descends vertically from the outer position while being suspended by the wire rope 4, and ends. Land on the water.

After the lifeboat 2 has been launched in this way, the handle 13 is removed from the operation restricting means 15 in the lifeboat 2 (FIG. 1).
), The screw shafts 5 and 6 are integrally rotated by the operation of the handle 13 and moved outward with respect to the nut 11. When the outer screw shaft 6 is detached from the nut 11, the engaging projection 8 is detached from the engaging recess 7 of the inner screw shaft 5, and the screw shaft 6 is separated from the screw shaft 5. That is, the lifeboat 2 is released from the restrained state by the wire rope 4. Therefore, the lifesaving boat 2 can be separated from the mother ship 42.
In this manner, the wire rope 4 can be securely detached from the lifeboat 2, so that the detaching operation can be performed safely.

The above operation has been described for the case where an emergency has occurred in the mother ship 42, but the lifeboat 2 can also be launched in training in a similar manner. In particular, during training, the lifeboat 2 after the launch is
Must be stored again, and the storing operation will be described below.

After the end of the training, the lifeboat 2 is
Put it on side 4. First, the engaging projection 8 of the screw shaft 6 connecting the wire rope 4 is engaged with the engaging concave portion 7 of the screw shaft 5 exposed from the nut 11,
The screw shafts 5 and 6 are rotated in reverse by operating the handle 13 while holding the engagement state by pressing down from above, and the screw shafts 5 and 6 are screwed into the nut 11. At this time, since the connecting ring 9 can be rotated around the axis of the screw shaft 6, the wire rope 4 is not twisted. After screwing, the handle 13 is rotated upward to engage with the operation restricting means 15 and to maintain the operation restricted state (see FIGS. 2 and 3). When the wire rope 4 is connected to the lifeboat 2 in this way, the drum 64 is rotated by operating the handle 67 on the winch 63, and the wire rope 68 is paid out from the reel 62 and wound on the drum 64. Along with this, the reel 62, the rotating shaft 56, and the reel 57 are rotated, the wire rope 4 is wound around the reel 57, and the lifeboat 2 is
As shown in FIG. 12, it is raised from the sea surface. At this time, the support arm 52 is tilted in the horizontal direction, and the guide portion 55 is opened downward with the tip end protruding outward of the side of the ship side 44. Therefore, the axial projections 45, 46 of the lifeboat 2 rising. Is the guide part 5
5 is guided to the groove 54. Therefore, lifeboat 2
Rotates the support arm 52 about the rotation shaft 51 as it rises, and the support arm 52 rotates so as to rise upward.
3 is stored above.

Next, the lock lever 71 is rotated to engage the engaging concave portion 72 with the shaft 59 to hold the lifesaving boat 2 in the stored locked state. Further, the wire rope 23 is inserted into the engagement concave portion 26 of the screw shaft 24 exposed from the nut 33.
By engaging the engaging projections 27 of the screw shaft 25 connecting the shafts and integrally rotating the screw shafts 25 and 24 by operating the handle 31, the screw shafts 24 and 25 are connected to the nut 27 in a connected state. The collar 28 can be screwed into contact with the receiving surface 34 of the nut 33. At this time, connecting ring 2
Since the wire 9 can be rotated around the axis of the screw shaft 25, the wire rope 23 is not twisted.
In addition, the drum 74 of the winch 73 releases the wire rope 68 so that the rotation restricting means is released and the engaging projection 27 of the screw shaft 25 can be easily engaged with the engaging recess 26 of the screw shaft 24. From the screw shaft 2
After screwing the nuts 4 and 25 to the nut 27 in the connected state, the handle 7
7 to rotate the drum 74 so that the wire rope 6
Tension 8 Then, the wire rope 68 is connected to the drum 7
The rotation of the drum 74 is restricted by the rotation restricting means so that the drum 74 is not fed out of the boat 4, and the lifesaving boat 2 is held in the locked state. In addition, the handle 36 is rotated in the horizontal direction to engage with the operation restricting means 38 and keep the operation restricted state (see FIGS. 6 and 7).

The screw shaft 6 of the connecting tool 1 is also connected to the connecting tool 22.
The handle may be provided integrally like the screw shaft 25 of the above. In addition, the connecting tools 1 and 22 can be applied to lifeboat devices having various configurations such as a conventional radial type, luffing type, and gravity type. In addition, the present invention can be variously modified without departing from the basic technical concept thereof.

[0033]

As described above, according to the present invention, after the lifeboat is lowered from the mother ship, the screw shaft on the inner side is rotated in the lifeboat by using the rotary operation unit, thereby providing the double screw shaft. Is rotated integrally with the female screw of the hull, and the outer screw shaft is separated from the female screw, whereby the engaging portion is also separated and separated from the inner engaging portion, and the connection of the outer screw shaft is performed. The cord connected to the harness can be removed from the lifeboat. In this manner, the cord connecting the mother ship and the lifeboat can be detached only by rotating the screw shaft in the lifeboat. Therefore, anyone can easily, safely, and quickly perform the above-mentioned detachment work without training, and the lifeboat can be urgently separated from the mother ship, and the cord can be cut off. It is not necessary to replace the cords during training.

[Brief description of the drawings]

FIG. 1 is a partially cutaway side view showing a connecting tool used for connecting a restraining wire rope in a lifesaving boat device according to a first embodiment of the present invention, which is attached to a hull and operation restriction is released. It is.

FIG. 2 is a partially cutaway side view showing the connection tool and in a state where operation is restricted.

FIG. 3 is a front view showing the connecting tool and in the state of FIG. 2;

FIG. 4 is a partial perspective view showing the coupling tool in an exploded state.

FIG. 5 is a partially cutaway side view showing a connecting tool used to connect a mooring wire rope in a lifesaving boat device according to a second embodiment of the present invention, which is attached to a hull and operation restriction is released. is there.

FIG. 6 is a partially cutaway side view showing the connection tool and in a state where operation is restricted.

FIG. 7 is a front view of the connecting tool, showing the state of FIG. 6;

FIG. 8 is a partial perspective view showing the connecting tool in a separated state.

FIG. 9 is a front view showing an example of a lifeboat device to which the coupler according to the embodiment of the present invention is applied, in a state where the lifeboat is stored in a mother ship.

FIG. 10 is a side view of the lifeboat device, showing a lifeboat stored in a mother ship.

FIG. 11 is a front view showing the lifeboat device, in a state where the lifeboat is lowered from a mother ship.

FIG. 12 is a side view showing the life-saving boat device, in a state where the life-saving boat is lowered from a mother ship.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 connecting tool 2 lifeboat 3 hull 4 restraining wire rope 5 screw shaft 6 screw shaft 7 engaging recess 8 engaging protrusion 9 connecting ring 10 handle 11 nut 22 connecting tool 23 mooring wire rope 24 screw shaft 25 screw Shaft 26 Engagement recess 27 Engagement projection 30 Handle 44 Mother ship 47 Mount 52 Support arm 54 Holder

Claims (3)

[Claims] 1. A pair of screw shafts having an engaging portion which is screwed to a female screw provided on a hull of a lifeboat and which can be integrally rotatably engaged with each other so as to be detachable in an axial direction. Cable for a lifeboat device, which is provided integrally with a tip end of a screw shaft on the side and which connects a rope body and a rotation operation unit integrally provided on a base of the screw shaft on the inner side. A connector for the stria. 2. The connector according to claim 1, further comprising a rotary operation unit integrally provided at a distal end portion of the screw shaft on the outer side. 3. The connector according to claim 1, wherein the connecting portion is configured to be rotatable around the axis of the screw shaft.