KR102046725B1 - Apparatus for preventing unintentional fall of life boat - Google Patents

Abstract

The present invention relates to an apparatus for preventing unintentional fall of a life boat, which includes: a davit (10) mounting a chain (12) and a fiber band (14); a life boat (20) lashed to the davit (10) with the chain (12) and the fiber band (14) at the same time; and a shackle member (30) having a releasing lever (44) capable of selective releasing with respect to lashing of the chain (12) and the fiber band (14). Accordingly, the apparatus for preventing unintentional fall of a life boat corresponds to a launching manner and implements various operation patterns based on a dual support structure assisting the chain suspending the life boat, thereby promoting utility improvement in accordance with storing and launching smoothness.

Description

Apparatus for preventing unintentional fall of life boat}

The present invention relates to a device for preventing the fall of the lifeboat, and more particularly to a device for preventing any fall of the lifeboat to assist in the chain to suspend the lifeboat to ensure the smoothness of storage and launching.

Vessels of a certain size or above are equipped with lifeboats for safe escape in an emergency. In the case of large ships, lifeboats are stored in chains in a device called a davit. However, in the case of the lifeboat suspended only by the chain, if the chain is damaged by external force or the like, the lifeboat may fall arbitrarily, which causes inconvenience to utility in an emergency.

On the other hand, the International Maritime Organization's Maritime Safety Committee (MSC) has suspended lifeboats as one of the safety measures to prevent the risk of lifeboats falling on the ship's darbits from falling due to damage to the chain. Since it is recommended to install a separate lifeboat fall prevention device in addition to the chain, it is necessary to develop technology to reflect this design.

As the prior art documents which can be referred to in this regard, Korean Patent Laid-Open Publication No. 2012-0100370, Korean Patent Publication No. 1301629 and the like are known.

The former is formed of a core wound with Para-aramid Fiber; A cover formed in a tube shape to receive the core strands and surrounding the core; A sleeve configured to surround the shackle eye except for the shackle eye in a state in which a cover with a core wrapped therebetween is partially overlapped so that a shackle eye for shackle is assembled at intervals at both ends thereof; And the like.

This is mainly due to the double supporting structure of the band of the fiber material besides the chain, but it is difficult to apply other than a specific manner simply supported on the davit.

The latter is pin-coupled to the main body, the lever guide groove is formed at the upper end, the lower end of the hook is caught on the lifeboat; A lever rotatably coupled to the main body, the lever having a movement guide formed at one end in the longitudinal direction; A ring fixing part slidably installed in the movement guide of the lever and seated on the lever guide groove to move on the lever guide groove according to the rotation of the lever; And the like.

It is easy to operate by sailors aboard lifeboats, which increases applicability, but lacks a fall prevention function to reinforce the chain. Even if the double support structure of the former is combined, there is room for improvement in terms of flexibility to cope with the launching method.

Korean Laid-Open Patent Publication No. 2012-0100370 "Lifeboat Fall Prevention Device" (published date: 2012.09.12.) Korean Patent Publication No. 1301629 "Automatic Hook System for Ships" (published date: July 12, 2013)

An object of the present invention for improving the conventional problems as described above, based on the double support structure to assist the chain to suspend the lifeboat, and to prevent any fall of the lifeboat that can implement a variety of operating patterns corresponding to the launching method It is to provide a device for preventing.

In order to achieve the above object, the present invention provides a device for preventing the fall of the lifeboat, comprising: a davit for mounting the chain and the fiber band; Lifeboats fixed at the same time as the chain and fiber band to the davit; And a shackle member having a release lever to enable selective release of the chain and the fiber band from the foil.
The shackle member is characterized in that the locking piece is installed through the hinge in the opposite position, the locking bar is installed to enter the incision groove of the locking piece, the pinion and the rack causing the movement of the locking bar by the operating force of the release lever. do.

As a detailed configuration of the present invention, the lifeboat is further provided with a stopper for fixing to the darbit, the stopper is characterized by causing a free fall by the launch lever.

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According to another embodiment of the present invention, there is provided an apparatus for preventing an arbitrary fall of a lifeboat, comprising: a davit for mounting a chain and a fiber band; Lifeboats fixed at the same time as the chain and fiber band to the davit; And a shackle member having a release lever to enable selective release of the chain and the fiber band from the foil.
The shackle member is characterized in that it further comprises a fixed body, a movable body coupled to each of the two sides of the fixed body to be movable, a connecting pin that can engage the connecting groove of the opposing movable body.

The connecting pin is characterized in that configured to be separated by a mechanical force causing the launching of the lifeboat.

The connecting pin is configured to be separated by a solenoid associated with the launch signal of the lifeboat.

According to the present invention as described above, based on the dual support structure to assist the chain to suspend lifeboats, to implement a variety of operating patterns corresponding to the launching method to improve the utilization due to the smoothness of storage and launching It works.

1 is a configuration diagram showing the device according to the invention in the installation state
2 is a schematic diagram showing an embodiment of the apparatus according to the present invention.
Figure 3 is a schematic diagram showing another embodiment of the device according to the present invention
4 is a schematic view showing a modification of the apparatus according to the present invention;

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

The present invention proposes an apparatus for preventing an arbitrary fall of a lifeboat. It is intended for, but is not limited to, lifeboat launching systems for safe escape in emergency situations on relatively medium and large ships.

The davit 10 according to the present invention has a structure in which the chain 12 and the fiber band 14 are mounted. The chain 12 is the most common foil member mounted on the davit 10. The fiber band 14 is preferably a flexible line structure so that it is not easily broken. Referring to FIG. 1, the fiber band 14 forms a shackle eye in a state in which certain portions of both ends overlap each other while surrounding the core of the fiber core with a cover.

On the other hand, the core of the fiber band 14 is a para-aramid fiber of 40,000 to 80,000 deniers (para-aramid fiber) is wound 15 to 30 times so that the loop length of 1 to 3 meters (m) Is formed. Denier (denier) refers to a unit representing the thickness of the raw sand, artificial, silk, nylon, etc. (1 denier when the weight of the 450-meter thread is 0.05 grams).

Lifeboat 20 according to the present invention is a structure that is simultaneously fixed to the chain 12 and the fiber band 14 to the davit 10. Even if the chain 12 is damaged due to external force, corrosion, etc., the suspended lifeboat 20 is effectively prevented from falling and substantially improves the convenience of use when the lifeboat 20 is used. However, as described below, the chain 12 and the fiber band 14 are preferentially releasing selective pulsation.

As a detailed configuration of the present invention, the lifeboat 20 is further provided with a stopper 22 for fixing to the davit 10, the stopper 22 is characterized by causing a free fall by the launch lever 24 It is done. The general launching method using the winch 16 of the davit 10 takes a lot of emergency escape time. In recent years, large-sized ships that have been recently built are equipped with free-falling lifeboats, and in this case, stoppers 22 are further provided in addition to the high foils by the chain 12 and the fiber band 14. The stopper 22 connects the davit 10 and the lifeboat 20 in a link structure, and a launch lever 24 connected to the stopper 22 is provided inside the lifeboat 20. Accordingly, when the escaper operates the launch lever 24 to unlock the stopper 22 in the state in which the chain 12 and the fibrous band 14 are released, free drop number is induced.

In addition, according to the present invention, the shackle member 30 is provided with a release lever 44 to enable the selective release of the chain 12 and the fiber band 14 to the high foil. Referring to FIG. 2, the shackle member 30 is divided into independent spaces on the left side and the right side to independently receive the adjacent chain 12 and the fiber band 14. In particular, since the free fall launching lifeboat 20 is frequently trained, checked, and replaced, it is important to selectively release the chain 12 and the fiber band 14. Selective release means any one release but does not exclude simultaneous release.

As a detailed configuration of the present invention, the shackle member 30 is a locking piece 35 which is installed via the hinge 34 at the opposite position, the locking piece is installed to enter and exit into the cutting groove 45 of the locking piece 35 It is characterized in that it comprises a pinion 42 and a rack 47 causing the movement of the locking bar 37 by the operating force of the bar 37, the release lever 44.

The shackle member 30 of FIG. 2 illustrates a structure in which one of the chain 12 or the fiber band 14 is taken to sequentially release the stiffness. The shackle member 30 is rotatably provided with a pair of locking pieces 35 in a W-shaped body whose upper portion is opened. The locking piece 35 is rotated through the hinge 34 at the outer end and has a cutout 45 at the inner end. The catching bar 37 is slidably mounted in the center of the body, and can be engaged with the cutout grooves 45 of the locking pieces 35 on both sides at the same time. A rack 47 is formed on the bottom of the locking bar 37. The release lever 44 exposed to the outside of the body is rotatable about the drive shaft 41. The pinion 42, which is concentrically coupled to the drive shaft 41, engages the rack 47.

Thus, while the release lever 44 maintains the posture perpendicular to the center as shown in FIG. Keep (14) in a crunch state. If the release lever 44 is rotated to the left side as shown in FIG. 2 (b), the locking bar 37 moves to the right, thereby leaving the locking piece 35 on the left side, so that only the chain 12 is released. Of course, when the release lever 44 is rotated to the right, only the pulsation of the fiber band 14 is released in the same principle. It is convenient to check or replace by releasing any one of the chain 12 and the fiber band 14, it is also possible to release all of the chain 12 and the fiber band 14 in accordance with the necessity such as launching.

In another embodiment of the present invention, the shackle member 30 is a fixed body 31, the movable body 32, which is coupled to both sides of the fixed body 31 so as to be movable, the connection of the opposing movable body 32 It is characterized in that it further comprises a connecting pin 55 that can be engaged with the groove (52).

The shackle member 30 of FIG. 3 illustrates a structure for releasing the foil of the chain 12 and the fiber band 14 at the same time. Of course, since the configuration of FIG. 3 is associated with the configuration of FIG. 2 described above, various operation patterns may be implemented. The shackle member 30 slidably supports the pair of movable bodies 32 on both sides of the inverted T-shaped fixed body 31. The hinge 34 and the locking piece 35 configured at the upper end of the movable body 32 maintain the same functionally as in FIG. The locking bar 37 which restrains the rotation of the locking piece 35 is not usable but can be kept the same. Connection grooves 52 are respectively formed at portions opposite to the movable bodies 32 on both sides, and the movable bodies 32 on both sides maintain a coupling state by using an inverted U-shaped connecting pin 55.

Thus, in the state in which the connecting pin 55 is coupled to the movable body 32 adjacently as shown in FIG. 3 (a), the chain 12 and the locking bar 37 are moved by the movement of the release lever 44 and the locking bar 37 of FIG. Selective fixing of the fiber band 14 is possible. If the connecting pin 55 is separated by an external force to be described later as shown in FIG. 3 (b), the opposing movable bodies 32 are spaced apart by the elastic body 53 mounted on the opposing surfaces, and the catching bar 37. Irrespective of the posture fluctuation of, the stiffness of the chain 12 and the fiber band 14 is released simultaneously.

As a first embodiment, the connecting pin 55 is characterized in that it is configured to be separated by a mechanical force causing the launching of the lifeboat 20. The launch lever 24 or the stopper 22 installed in the lifeboat 20 has a portion that is moved (rotated) as in the above-described patent. One end of the launch cable 26 can be connected to this part to receive mechanical force. The other end of the launching cable 26 is connected to the connecting pin 55 through the fixing body 31. The launch cable 26 can be composed of a sheath and a wire like a motorcycle brake cable. Driven by mechanical force, no battery power is required.

On the other hand, in the operating state as shown in Figure 3 it is good to configure the wave unit 56 at the end of the launching cable 26 so as not to interfere when the lifeboat 20 is launched. The wave unit 56 is configured such that the launch cable 26 is separated from the lifeboat 20 at a set load.

As a second embodiment, the connecting pin 55 is characterized in that it is configured to be separated by the solenoid 58 associated with the launch signal of the lifeboat 20. Referring to FIG. 4, the above-described launching cable 26 and wave unit 56 are omitted, and the solenoid 58 is directly connected to the connecting pin 55 to realize the pulsation release. The signal related to the real number is secured through a sensor installed adjacent to the real number lever 24. The power supply of the sensor and solenoid 58 uses battery power mounted on the lifeboat 20.

When the present invention is applied to the free-fall launching method, when the training or inspection, as shown in Figure 2 selectively release the crunch of the chain 12 and the fiber band 14, in the emergency escape the chain 12 and fiber band Even if the state of 14 is fixed, the chain 12, the fiber band 14, and the stopper 22 can all be released by operating the launch lever 24 as shown in FIG.

It is apparent to those skilled in the art that the present invention is not limited to the described embodiments, and that various modifications and variations can be made without departing from the spirit and scope of the present invention. Therefore, such modifications or variations will have to belong to the claims of the present invention.

10: David 12: chain
14: fiber band 16: winch
20: Lifeboat 22: Stopper
24: Launch lever 26: Launch cable
30: shackle member 31: fixed body
32: movable body 34: hinge
35: locking piece 37: hanging bar
41: drive shaft 42: pinion
44: release lever 45: incision groove
47: rack 52: connecting groove
53: elastomer 55: connecting pin
56: wave group 58: solenoid

Claims (6)

Apparatus for preventing random fall of lifeboats:
A davit 10 mounted with a chain 12 and a fiber band 14;
Lifeboats 20 fixed to the davit 10 by a chain 12 and a fiber band 14 at the same time; And
Shackle member 30 having a release lever 44 to enable the selective release of the chain 12 and the fiber band 14, the high;
The shackle member 30 is a locking piece 35 which is installed through the hinge 34 in the opposite position, a locking bar 37, which is installed to enter and exit the cutting groove 45 of the locking piece 35, the release lever Apparatus for preventing an arbitrary fall of the lifeboat, characterized in that it comprises a pinion (42) and a rack (47) to cause the movement of the locking bar (37) by the operating force of (44). The method according to claim 1,
The lifeboat 20 is further provided with a stopper 22 for fixing to the davit 10, the stopper 22 is an arbitrary fall of the lifeboat characterized in that it causes a free fall by the launch lever 24 Device to prevent it. delete Apparatus for preventing random fall of lifeboats:
A davit 10 mounted with a chain 12 and a fiber band 14;
Lifeboats 20 fixed to the davit 10 by a chain 12 and a fiber band 14 at the same time; And
Shackle member 30 having a release lever 44 to enable the selective release of the chain 12 and the fiber band 14, the high;
The shackle member 30 is connected to the fixed body 31, the movable body 32 is movably coupled to both sides of the fixed body 31, the connecting groove 52 of the opposing movable body 32, respectively An apparatus for preventing arbitrary fall of a lifeboat, further comprising a pin (55). The method according to claim 4,
The connecting pin (55) is to prevent the fall of the lifeboat, characterized in that configured to be separated by a mechanical force causing the launching of the lifeboat (20). The method according to claim 4,
The connecting pin (55) is to prevent the fall of the lifeboat, characterized in that configured to be separated by a solenoid (58) associated with the launch signal of the lifeboat (20).

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