JP4851854B2 - Lifting device - Google Patents

Description

  The present invention relates to a boat raising apparatus for carrying out and carrying a loaded boat with respect to a mother ship.

  As a boat raising device, there is a device for carrying and carrying a loaded boat with respect to a recess provided on a side surface of a mother ship.

As such a boat raising apparatus, Patent Document 1 discloses a crane boom that rotates around a vertical axis and is swung out of a mother ship from a recess, and a single wire that is fed from the tip of the crane boom through a sheave. A rope and one winch which winds up a wire rope are provided.
JP 2006-1440 A

  Since the boat raising apparatus described in Patent Document 1 rotates a crane boom, it may be difficult to equip it in a recess with a severe dimensional constraint, that is, a narrow recess.

  Further, in order to carry the mounted boat out of the recess of the mother ship, the mounted boat rotates 90 degrees with respect to the mother ship in order to rotate the crane boom 90 degrees and swing the mounted boat out of the mother ship. Therefore, before the mounted boat is lowered toward the sea surface, an operation for rotating the mounted boat in parallel with the mother ship is required.

  The present invention has been made in view of the above problems, and an object of the present invention is to provide a boat raising apparatus that can be installed in a narrow recess and can be carried in and out efficiently.

The present invention relates to a boat raising apparatus for carrying out and carrying a loaded boat to a recess provided in a mother ship, a traveling rail attached to the ceiling of the recess and extending toward the outside of the mother ship, and the traveling rail. A slide boom that is guided and movable, and extends a wire rope that suspends the mounted boat from a tip portion thereof, and a moving means that moves the slide boom along the traveling rail, and the moving means includes the A traveling motor fixed to the slide boom, a rotating body connected to the output shaft of the traveling motor, and a rotating body guide member which is provided along the traveling rail and meshes with the rotating body to guide the rotating body. When the attached to the slide boom, characterized Rukoto and a moving body which is guided in the running rails.

  According to the present invention, loading and unloading of the mounted boat with respect to the recess provided in the mother ship is performed by moving the slide boom along which the mounted boat is suspended along the traveling rail. Therefore, since there is no need to rotate the slide boom, the boat raising apparatus according to the present invention can be equipped even in a narrow recess.

  Moreover, since the loaded boat can be carried out of the boat while being in parallel with the mother ship, an operation for rotating the loaded boat is unnecessary, and the loaded boat can be efficiently carried in and out.

  Embodiments of the present invention will be described below with reference to the drawings.

  A boat raising apparatus 100 according to an embodiment of the present invention will be described with reference to FIGS. 1, 2, and 3 are a side view, a front view, and a plan view, respectively, illustrating a state in which a boat mounted on a mother ship is suspended by a boat raising apparatus 100, and FIG. 4, FIG. 5, FIG. FIG. 7 is a side view, a front view, a rear view, and a cross-sectional view (cross section AA in FIG. 4) showing the boat raising apparatus 100, respectively.

  As shown in FIG. 1 to FIG. 3, the mother ship 1 is provided in an opening on the side surface of the mother ship, and stores a small loaded boat 2 (hereinafter referred to as “loaded boat 2”) such as a rescue boat or a high speed boat. Recess 3 is a space.

  A boat rest 5 on which the mounted boat 2 is placed is installed on the deck 4 that is a floor surface in the recess 3, and the boat raising device 100 carries out and loads the mounted boat 2 to and from the boat rest 5 in the recess 3. It is a device to do.

  As shown in FIGS. 4 to 7, the boat raising apparatus 100 includes a traveling rail 7 attached to the ceiling 12 in the recess 3, a slide boom 8 that is movable by being guided by the traveling rail 7, and the slide boom 8. And a moving mechanism 6 as moving means for moving along the traveling rail 7.

  A sheave 9 is attached to the tip of the slide boom 8, and a wire rope 10 is fed out from the sheave 9. A winch 11 around which the wire rope 10 is wound is fixed to the other end of the slide boom 8. The winch 11 is driven by a hydraulic motor 11a, and the wire rope 10 is wound and unwound by the operation of the hydraulic motor 11a.

  As shown in FIGS. 1 to 3, the onboard boat 2 is placed on the boat rest 5 in a direction parallel to the mother boat 1 and is suspended by the wire rope 10 in this state.

  The wire rope 10 has a non-spinning structure and suppresses the rotation of the mounted boat 2 that is suspended by reducing the twist of the wire rope 10 that accompanies an increase or decrease in tension.

  On the ceiling 12 in the recess 3, a groove 12 a is formed in a direction substantially perpendicular to the direction of the mother ship 1 (the mother ship traveling direction), and the traveling rail 7 is attached in the groove 12 a. In this way, the traveling rail 7 extends from the recess 3 to the outside of the mother ship 1.

  As shown in FIGS. 4 to 7, the moving mechanism 6 includes a traveling motor 13 fixed to the slide boom 8, a sprocket 14 as a rotating body connected to the output shaft of the traveling motor 13, and the traveling rail 7. , And a chain 15 as a rotating member guide member that meshes with the sprocket 14.

  A roller 16 is attached to the slide boom 8 as a moving body that is guided by the travel rail 7 and rotates forward on the travel rail.

  The operation of the moving mechanism 6 configured as described above will be described. When the traveling motor 13 is driven, the sprocket 14 is rotated. Since the sprocket 14 meshes with the chain 15, the sprocket 14 moves while being guided by the chain 15. Accordingly, the traveling motor 13 and the slide boom 8 to which the traveling motor 13 is fixed move on the traveling rail 7 via the roller 16.

  Thus, by driving the traveling motor 13 of the moving mechanism 6, the slide boom 8 moves along the traveling rail 7 together with the winch 11 and the traveling motor 13. Since the traveling rail 7 extends from the recess 3 toward the outside of the mother ship 1, the mounted boat 2 suspended from the wire rope 10 fed out from the distal end portion of the slide boom 8 does not rotate inside the recess 3. Rampant. In this way, the mounted boat 2 is carried out and carried into the recess 3 while being kept parallel to the mother ship 1.

  Further, since the winch 11 moves integrally with the slide boom 8, it is not necessary to drive the winch 11 when the mounted boat 2 traverses along with the movement of the slide boom 8.

  In the moving mechanism 6, the rotating body and the rotating body guide member are a combination of the sprocket 14 and the chain 15, but may be a combination of a rack and a pinion.

  The travel motor 13 is constituted by a hydraulic motor, and can be stopped by the action of a built-in hydraulic brake to stop the slide boom 8 at a desired position.

  Stoppers (not shown) that restrict the movement of the rollers 16 are provided at both ends of the traveling rail 7 in order to prevent the slide boom 8 from moving further.

  The sheave 9 is provided with a limit switch 18 as detection means for detecting the upper limit position of the mounted boat 2. The limit switch 18 is turned on when an actuating body (not shown) provided near the tip of the wire rope 10 abuts the limit switch 18 when the wire rope 10 is wound up. When the limit switch 18 detects the operating body, the operation of the winch 11 is stopped and the ascent of the mounted boat 2 is stopped.

  In this way, the mounted boat 2 can be accurately stopped at the upper limit position by the limit switch 18. Therefore, when the height of the recess 3 is low and the raising margin of the mounted boat 2 is small, the limit switch 18 works effectively.

  The slide boom 8 is provided with a stabilizer 20 that supports the mounted boat 2 and suppresses the posture change of the mounted boat 2 while the slide boom 8 is moving along the traveling rail 7.

As shown in FIG. 5, the stabilizer 20 includes a shaft portion 21 attached to the slide boom 8, a connecting bar 22 attached at right angles to the tip of the shaft portion 21, and a pair of supports connected to both ends of the connecting bar 22. And a bar 23.

  A cylindrical rubber tube 24 is attached to both sides of the mounted boat 2, and the support bar 23 is formed in an arc shape along the outer periphery of the rubber tube 24. When the inner peripheral surface of the support bar 23 comes into contact with the outer periphery of the rubber tube 24, the posture change of the mounted boat 2 is suppressed.

  Next, with reference to FIG.2 and FIG.3, operation | movement of the boat raising apparatus 100 is demonstrated. 2 and 3, the movement of the slide boom 8 and the mounted boat 2 is shown in the same drawing.

First, the case where the loaded boat 2 is carried out from the recess 3 of the mother ship 1 to the outside of the mother ship 1 will be described.
In the state where the loaded boat 2 is placed on the boat rest 5 in a direction parallel to the mother boat 1, the wire rope 10 that is fed from the tip of the slide boom 8 through the sheave 9 is connected to the loaded boat 2.
-The winch 11 is driven, the wire rope 10 is wound up, and the mounted boat 2 is raised. The winch 11 stops when the limit switch 18 operates, and the mounted boat 2 stops at the upper limit position.
In this state, the stabilizer 20 comes into contact with the rubber tube 24 of the mounted boat 2.
The driving motor 13 is driven and the slide boom 8 is moved along the running rail 7. As a result, the mounted boat 2 suspended from the wire rope 10 traverses from the recess 3 to the outside of the mother boat 1 while keeping parallel to the mother boat 1. Further, since the winch 11 is fixed to the slide boom 8, the winch 11 moves integrally with the slide boom 8. Therefore, it is not necessary to drive the winch 11 while the mounted boat 2 is traversing. Since the mounted boat 2 is supported by the stabilizer 20 while the mounted boat 2 is traversing, swinging and rotation are suppressed.
-The movement of the slide boom 8 causes the mounted boat 2 to traverse from the recess 3 to the outside of the mother boat 1, and then drives the winch 11 to feed out the wire rope 10 to lower the mounted boat 2 and land.

  As described above, if the boat raising apparatus 100 is used, the mounted boat 2 can be carried out of the mother boat 1 without rotating.

  In order to carry the loaded boat 2 into the recess 3 from the outside of the mother boat 1, an operation opposite to that for carrying out is performed. That is, the mounted boat 2 that has landed is raised in parallel with the mother boat 1 and the mounted boat 2 is stopped at the upper limit position where the limit switch 18 operates. Then, the traveling motor 13 is driven to move the slide boom 8 along the traveling rail 7. As a result, the mounted boat 2 traverses in a state of being parallel to the mother ship 1 and enters the recess 3. Finally, the loaded boat 2 is lowered and placed on the boat rest 5.

  As described above, according to the present embodiment, loading and unloading of the mounted boat 2 with respect to the recess 3 provided in the mother ship 1 moves the slide boom 8 with the mounted boat 2 suspended along the traveling rail 7. To be done. Therefore, since it is not necessary to rotate the slide boom 8, the boat raising apparatus 100 can be equipped even in the narrow recess 3.

  Further, in the case of installing the boat raising device in the recess 3, in the case of a device that rotates the slide boom, it is necessary to raise the ceiling 12 of the recess 3 within the range of rotation of the slide boom. In the case of the device 100, only the groove 12 a to which the traveling rail 7 is attached needs to be formed on the ceiling 12 of the recess 3. Therefore, the boat raising apparatus 100 can be installed even in the recess 3 in which dimensional restrictions are severe.

  Further, when the loaded boat 2 is carried into and out of the recess 3, the traversal of the loaded boat 2 in the recess 3 is performed in a state of being parallel to the mother boat 1, so that an operation for rotating the loaded boat 2 is unnecessary. It can be carried in and out efficiently.

  Further, since the winch 11 is fixed to the slide boom 8, the winch 11 also moves as the slide boom 8 moves. When the winch 11 is provided separately from the slide boom 8, it is necessary to drive the winch 11 when the mounted boat 2 traverses as the slide boom 8 moves. However, in this embodiment, since the winch 11 moves integrally with the slide boom 8, it is not necessary to drive the winch 11 when the mounted boat 2 traverses along with the movement of the slide boom 8. Thus, the winch 11 does not need to be driven when the mounted boat 2 is traversing, and may be driven only when the mounted boat 2 is raised or lowered.

  Further, since the limit switch 18 is provided on the sheave 9, even when the height of the recess 3 is low and the raising margin of the mounted boat 2 is small, the upper limit position of the mounted boat 2 is accurately positioned by the limit switch 18.

  Further, since the slide boom 8 is provided with the stabilizer 20 for supporting the mounted boat 2, it is possible to suppress the posture change of the mounted boat 2 while the slide boom 8 is moving along the traveling rail 7. It is possible to stably carry out and carry in the loaded boat 2.

  The present invention is not limited to the above-described embodiment, and it is obvious that various modifications can be made within the scope of the technical idea.

  The boat raising apparatus of the present invention can be applied to an apparatus for carrying out and carrying in a loaded boat with respect to a mother ship.

It is a side view which shows the state which suspended the mounted boat of the mother ship using the boat raising apparatus 100 which concerns on embodiment of this invention. It is a front view which shows the state which similarly suspended the mounted boat of the mother ship using the boat raising apparatus. It is a top view which shows the state which similarly suspended the mounted boat of the mother ship using the boat raising apparatus 100. FIG. It is a side view which shows the boat raising apparatus 100 which concerns on embodiment of this invention. It is a front view which similarly shows the boat raising apparatus. It is the rear view which similarly shows the boat raising apparatus 100. It is sectional drawing which similarly shows the boat raising apparatus 100. FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 100 Boat raising apparatus 1 Mother ship 2 Mounted boat 3 Recess 4 Deck 6 Movement mechanism 7 Travel rail 8 Slide boom 9 Sheave 10 Wire rope 11 Winch 12 Recess ceiling 13 Motor 14 for sprocket 15 Chain 16 Roller 18 Limit switch 20 Stabilizer

Claims (5)

A boat raising device for carrying and carrying a loaded boat to a recess provided in a mother ship,
A traveling rail attached to the ceiling of the recess and extending toward the outside of the mother ship;
A slide boom that is guided by the traveling rail and is movable, and that feeds out a wire rope that suspends the mounted boat from a tip portion;
Moving means for moving the slide boom along the traveling rail ,
The moving means is
A traveling motor fixed to the slide boom;
A rotating body coupled to the output shaft of the traveling motor;
A rotating body guide member which is provided along the traveling rail and meshes with the rotating body to guide the rotating body;
A moving body attached to the slide boom and guided by the traveling rail;
Agetei and wherein the Rukoto equipped with. A winch around which the wire rope is wound;
The boat raising apparatus according to claim 1, wherein the winch is fixed to the slide boom. Wherein provided on the slide boom Agetei device according to claim 1 or claim 2, characterized in that it comprises a stabilizer that supports the boat. The boat raising apparatus according to any one of claims 1 to 3 , wherein a detecting means for detecting an upper limit position of the mounted boat is provided at a tip portion of the slide boom. The boat raising apparatus according to any one of claims 1 to 4, wherein a combination of the rotating body and the rotating body guide member is a sprocket and a chain, or a rack and a pinion.