JP3000216U - Pilot lifting device - Google Patents

Abstract

(57) [Summary] [Purpose] The purpose is to allow a pilot, who had previously climbed and descended from a ship along a rope ladder, to climb up and down the chain automatically and slowly. [Structure] Elevating chain 20 with footrest and handle
Is equipped with a guide gear and an up-and-down gear provided on the top of the ship, and is provided with the up-and-down chain 20 for winding and rewinding by the rotation of the chain-winding drum. A clutch switching for winding or unwinding the chain winding drum 1 is performed by operating a piece moving handle 19 on the side wall, which is provided on the shaft 21, and the clutch shaft 21 has positive clutches on both sides of the chain winding drum 1. Two pulleys that rotate in the opposite direction are provided, and the side surface of each pulley meshes with the concavo-convex portion on the side surface of each pulley when the clutch is connected, so that the power of the motor is transmitted from the pulley to the chain winding drum through the speed reducer. It was made to be transmitted.

Description

[Detailed description of the device]

[0001]

[Industrial application] The lifting device for a pilot according to the present invention is designed to be used from a pilot boat or a tugboat where the pilot holds a pilot flag when the pilot of the boat (referred to as a pilot) gets on or off the boat. It is used to get on and off, and the pilot is on the elevator chain, and the elevator chain is lowered and raised between the main ship and the ship holding the pilot flag to raise and lower the pilot. The purpose is to use.

A pilot's footrest is provided at the tip of the lifting chain, and a handle for the pilot to hold is further provided on the footrest. The pilot rides on the footrest of the ascending / descending chain that has landed on the ship, operates it on the ship, raises the lifting chain, and transfers to the deck of the ship. When the pilot finishes the guide work and disembarks from the ship to the ship carrying the pilot flag, he descends in the reverse order.

[0003]

2. Description of the Related Art Since a ship pilot guides a ship in a harbor, when a pilot embarks on or disembarks from the ship carrying the pilot flag, he / she pulls down the rope ladder and Ascending and descending along the rope ladder. This method was not efficient considering the work of the sailors to raise and lower it and the labor required for the pilot to climb and descend the rope ladder by himself. In particular, a safe automatic lifting device was desired because the labor of the pilot becomes excessive, but the current situation is that it is carried out by the conventional rope ladder.

[0004]

[Problems to be Solved] The rope ladder that was conventionally equipped on the ship was lowered, and the pilot climbed up and down by itself along the rope ladder. In the present invention, the pilot is provided with a foot provided at the tip of the lifting chain. It aims to be able to hoist or unwind the elevator chain on the platform.

[0005]

[Means for Solving the Problems] Guide gears and lifting gears provided on a platform provided on a ship with a lifting platform and a handle provided at the tips of two chains that are vertically raised and lowered in parallel. The chain winding drum is supported on the chain winding drum, and the other end of the chain winding drum is mounted on the clutch shaft. By raising or lowering the chain winding drum, the motor can be rotated either forward (upward) or reverse (downward) so that the chain can be raised or lowered. That is, the pilot chain is moved up and down by winding the lifting chain around the drum to raise it, rewinding it and lowering it. The chain winding drum is provided on a clutch shaft provided on a bearing provided on the left and right side walls, and the switching of the clutch that gives a positive winding rotation or a reverse winding rotation to the chain winding drum is performed outside the side wall. This is done by operating the provided piece moving handle. For this purpose, a moving piece having a projecting portion 17 whose tip is fitted in a groove provided around the drum is provided on a piece moving handle shaft threaded on the entire shaft, and the piece moving handle shaft is provided. Are provided on both side walls, and the movable piece is moved back and forth by operating a piece moving handle provided on a piece moving handle shaft which is exposed to the outside of the side wall. The chain winding drum moves to the left or right, and the up or down clutch is switched. For this purpose, the clutch shaft is provided with pulleys on both sides of the chain winding drum that rotate to raise the chain and vice versa, and to the side of each pulley. When the side surfaces of the drum contact each other, the concave and convex portions of the drum side surface and the pulley side surface are engaged with each other so that the clutch is engaged. Since the power of the motor is transmitted to both pulleys that rotate in the forward and reverse directions on the left and right through a reducer, the clutch is connected by operating the piece moving handle of the clutch so that the respective clutches provided on the clutch shaft can be connected. Power is transmitted from the pulley to the chain winding drum. The pilot lifting device of the present invention comprises a chain winding drum for lifting and lowering the chain so that the two lifting chains can be lifted and lowered, and the chain winding drum is connected to an ascending or descending pulley to power the motor. An elevating device is configured by having a clutch function that transmits from the pulley to the chain winding drum and a speed reduction function that transmits the power of the motor as a rotation of the ascending pulley for hoisting or the descending pulley for unwinding through the reducer. There is something.

[0006]

The operation of the piece moving handle is performed by rotating the handle provided on the side wall of the pilot lifting device to the right or vice versa. The rotation moves the moving piece of the piece moving handle shaft, and the tip of the protruding portion of the moving piece enters the drum circumferential groove. Therefore, the protruding portion pushes the chain winding drum to wind the side surface of the drum. It will be connected to the ascending pulley or the descending pulley of the hoist by meshing the unevenness on each side.

The power of the motor is separately transmitted to each pulley via the speed reducer. Since the ascending pulley and the descending pulley are made to rotate in different directions from each other, when the side of the chain winding drum is connected to the ascending pulley by operating the piece moving handle, the lifting chain is wound on the drum. The pilot climbs up to the deck of the ship, but when connected to the descending pulley, the lifting chain is unwound and the pilot disembarks from the ship.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT The accompanying drawings illustrate an embodiment of a lifting device for a pilot according to the present invention. An embodiment of the present invention will be described with reference to the accompanying drawings. FIG. 1 is a front view showing the internal structure of a lifting device for a pilot, in which a lifting chain having an end portion provided on a chain winding drum is shown. Omitted. FIG. 2 is a plan view of a clutch in which a lifting chain is wound up or down by a chain winding drum or is unwound and a pilot moves up and down. FIG. 3 is a side view showing a state in which the pilot lifting device is installed on the deck of the ship, the pilot uses the lifting chain to board the ship, and the pilot disembarks from the ship.

Referring to the reference numerals in the accompanying drawings, reference numeral 1 is a chain winding drum. This is a drum provided on a clutch shaft for winding an ascending / descending chain, and both ends of this drum are provided with a tool for preventing the chain from coming off around the drum. Reference numeral 2 is a drum peripheral groove provided around the drum, 3 is a guide gear for allowing the lifting chain to be lowered from the edge of the deck to the outside of the ship, and 4 is a left and right chain at a certain interval. The lifting gears, which have parallel widths and which are connected to the ascending pulley or the descending pulley by switching the clutches and rotate simultaneously with the chain winding drum, are shown in the drawings. The elevator gear 4 is provided with a clutch because it is connected to each side of the ascending pulley or the descending pulley. Reference numeral 5 is a belt for winding up the lifting chain, which is a rising belt which is hung on a rising pulley connected to the chain winding drum, 6 is a rising belt, and 7 is a lifting chain which is wound on a chain winding drum. A descending belt suspended on a descending pulley for lowering, 8 is a descending belt, 9 is a reduction gear of a reduction gear that acts to increase the power by reducing the number of rotations of a motor, and 10 is a plurality of gears. The gears that rotate the descending pulley by the combination of the above, 11 are the ascending pulleys that hang the ascending belt, 12 are the descending pulleys that hang the descending belt, 13 is the gears that rotate the descending pulley by the combination of a plurality of gears, 14 Is a mount for installing the motor and side wall of the pilot lifting device, 15 is a side wall for providing various bearings, 16 is a bearing for providing a rotating shaft, 1 Reference numeral 7 is a protruding portion that is provided on the moving piece so that the tip end portion is inserted into the drum peripheral groove, 18 is a moving piece provided on the shaft of the piece moving handle, and 19 is a handle. A piece moving handle for operating and disengaging the clutch of the chain winding drum, 20 is two lifting chains provided with a tip end on the chain winding drum, 21 is a clutch shaft, and 22 is a lifting chain. Pilot on a footrest, 23 is a pilot carrying a pilot flag, 24 is a main ship guided by a pilot, 25 is an electric motor or air motor, 26 Is an ascending pulley, and 27 is an ascending pulley.

A guide gear provided on a table 14 provided on the ship 24 with the lifting chain 20 having a footrest and a handle at the tips of the two lifting chains 20 that move up and down in parallel with each other. 3 and the lifting gear 4 respectively, and the other end portions thereof are provided on the chain winding drum 1, and the chain winding drum 1 is provided on the clutch shaft 21. This chain winding drum is rotated so that the chain 20 can be moved up and down (forward) or down (reverse) by the motor 25 so that the chain 20 can be moved up and down. That is, the elevating and lowering chain 20 is wound around the drum to move up, and then is rewound to move down so that the pilot 22 can get on or off the ship. The chain winding drum 1 is provided on a clutch shaft 21 provided on bearings provided on the left and right side walls, and the chain winding drum 1 is rotated to wind up and the pilot is rotated up or down. The clutch, which allows the pilot to descend, is switched by operating the piece moving handle 19 provided outside the side wall 15. For this purpose, a moving piece 18 having a projecting portion 17 whose tip is fitted in a drum peripheral groove 2 provided around the drum is provided on a piece moving handle shaft threaded on the entire shaft, The piece moving handle shaft is provided on the bearings provided on both side walls 15, and the moving piece 18 is moved back and forth by operating the piece moving handle 19 provided on the piece moving handle shaft which is outside the side wall. I am trying to move to both left and right. The chain winding handle moves the chain winding drum to the left or right to switch the clutch between ascending (normal) and descending (reverse). For this purpose, the clutch shaft 21 is provided with an ascending pulley 26 that rotates forward as the chain ascends and a descending pulley 27 that rotates as it descends on both sides of the chain winding drum 1. When the side surface of the drum comes into contact with the side surface of the pulley, the clutch meshes with the clutch and the power is transmitted to the chain winding drum 1. When the electric motor or the ship is a tanker, the power of the air motor is transmitted via a speed reducer to both the ascending pulley 11 and the descending pulley 12 that rotate in the right and left directions. By connecting the clutch by operating the moving handle 19, power is transmitted from the ascending and descending pulleys 26 and 27 provided on the clutch shaft 21 to the chain winding drum. Ascending belts are respectively hung on the ascending pulleys 11 and 26 so that power can be transmitted to the ascending pulleys 26. A descending belt is suspended around the descending pulleys 12, 27 and the like so that power is transmitted to the descending pulley 27.

[0011]

[Effects of the Invention] The pilot lifting device according to the present invention is designed so that a pilot can get on and off the pilot-guided ship on the deck of the ship. A pilot, who used to climb up and down a rope ladder, operates the elevator chain to move between the ship holding the pilot's flag and the main ship, and automatically climbs up and down on the footrest of the chain. It is designed to be easy to do. It was technically easy to operate the operation panel for rotating the motor and handle operation such as clutch switching, which was used by the crew to help pull down and pull up the rope ladder. It will be possible.

[Brief description of drawings]

FIG. 1 is a front view showing the internal structure of a lifting device for a pilot.

FIG. 2 is a plan view of the clutch

FIG. 3 is a side view illustrating a state in which a pilot lifting device is installed on a deck of a ship for use.

[Explanation of symbols]

 1. ． ． Chain winding drum 2. ． ． Groove around drum 3. ． ． Guide gear 4. ． ． Lifting gear 5. ． ． Rising belt 6. ． ． Ascending belt 7. ． ． Descending belt 8. ． ． Descending belt 9. ． ． Reduction gear 10. ． ． Gear 11. ． ． Ascending pulley 12. ． ． Descending pulley 13. ． ． Gear 14. ． ． Stand 15. ． ． Side wall 16. ． ． Bearing 17. ． ． Projection 18. ． ． Moving piece 19. ． ． Piece moving handle 20. ． ． Lifting chain 21. ． ． Clutch shaft 22. ． ． Pilot 23. ． ． Ship holding pilot flag 24. ． ． Vessel 25. ． ． Electric motor or air motor 26. ． ． Ascending pulley 27. ． ． Pulling down pulley

Claims (1)

[Scope of utility model registration request] Claims: 1. An elevator chain equipped with a pilot's footrest and a handle is supported by a guide gear and an elevator gear provided on the top of the ship, and the footrest of the elevator chain is taken out of the ship.
The chain winding drum is provided with its tip end portion, and the chain winding drum is provided with a function of hoisting and lowering by raising and lowering the chain by rotating the chain winding drum forward or reverse. A clutch function that is provided on the clutch shaft and that gives the chain winding drum a winding rotation or the reverse winding rotation by moving the chain winding drum with the piece moving handle to switch the ascending or descending clutch. The clutch shaft is equipped with a pulley that rotates on both sides of the chain winding drum and a pulley that rotates on the other hand on the contrary, and the side of the drum contacts the side of each pulley. By this, the power of the motor is transmitted to the pulley through the reducer and the lifting chain is wound up. It was or winding down pilot of the elevator device, characterized by automatically gentle lifting of the pilot by providing a deceleration functions to be transmitted as rotation of the chain winding drum a.