JPH05319373A - Lifting and lowering device - Google Patents

Abstract

PURPOSE:To carry out the daily check of a lifting and lowering device only for the stationary side thereof, and easily and safely carry out a checking work by applying the constitution where the lifting and lowering of a ship with a travel carriage and the motion of the carriage can be all actuated with a fixed drive device. CONSTITUTION:Travel carriages 1 and 1 caused to travel via wheels 17 to 19 on two rails 20 laid in parallel at such a distance as allowing the entry of a ship 23 are installed. Each carriage 1 is constituted of a travel base 27, a vertically extended post or the like, and a lifting beam 25 is so supported on the post as to be capable of freely ascending and descending. The carriage 1 is caused to travel via the motion of a travel chain on the turning of a drive sprocket in a travel drive device laid at the shore side end of the rails 20. The lifting beam 25 is also caused to ascend and descend via a wire on the turning of the winding drum of a lifting and lowering drive device similarly laid at the shore side end of the rails 20. In this case, the ship 23 is elevated or lowered with a sling 24 suspended from the lifting beam 25.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hoisting device used for landing a ship such as a boat and a yacht from the sea and for disembarking from a land to the sea.

[0002]

2. Description of the Related Art As a prior art, as shown in FIG. 5, a hoisting machine disclosed in Japanese Examined Patent Publication No. 61-35033 has been put into practical use. In this technique, the moving carriage 1 is equipped with the elevating / lowering drive devices 4 and 30, and the sling 24 suspended from the elevating / lowering beam 25 lifts and lowers the ship 23.

[0003]

In the above-mentioned prior art,
Improving equipment reliability by incurring risk of troubles such as lifting drive equipment due to adverse conditions due to sea breeze, splashing, dust, etc. in the beach environment, risk of daily maintenance work at high places, work difficulty, and Is difficult. It is an object of the present invention to provide a hoisting device that can solve the problems of the prior art.

[0004]

According to the present invention, in order to solve the above-mentioned problems, the lifting drive unit and the traveling drive unit are separated from the moving carriage and arranged on the fixed side to facilitate daily inspection and facilitate maintenance. And maintain the reliability of the device. For lifting, by fixing the wire from the fixed drive device to one end of the traveling platform via the moving carriage, the elevating beam, and the idle sheave provided at the tip of the traveling platform, the fixed lifting drive is performed. The device enables the ship to be raised and lowered.

On the other hand, for traveling, a fixed drive unit and a movable carriage are connected by a chain, and the structure is such that the elevator wire is squeezed while traveling.

[0006]

With the above-described means, the moving carriage can be used to move the carriage up and down and the moving carriage can be driven by a fixed drive unit. Therefore, the main drive unit mounted on the movable carriage is eliminated, and daily inspection is fixed. Since it is only on the side, the labor and labor saving effect can be remarkably improved, and the reliability of the equipment can be remarkably improved.

[0007]

Embodiments of the present invention will be described below with reference to FIGS. 1 to 4, the ship 23 is a lifting beam 25.
The sling 24 hangs up and down. The moving carriage 1 includes a traveling base 27, posts 26,
The structure including the upper beam 28 and the traveling base 27
Wheels 17, 18 and 19 are provided on the wheel, the wheel 18 supports a vertical load, and the wheels 17 and 19 are arranged with respect to the overturning moment. Further, idle sheaves 8 and 12 are also provided, and traveling chain fixed ends 14 and 15 are further provided. The suspended idle sheave 11 and the upper idle sheave 9 are attached to the upper beam 28.

The lift beam 25 is provided with an idle sheave 10. The traveling pedestal 2 is provided with the lifting wire idle sheave 7 and the traveling idle sprocket 16 at the tip, and the lifting wire fixed end 13 at the fixed end. For traveling, a drive sprocket 29 is provided at an end of the traveling drive device 3, and the traveling chain 5, the idle sprocket 16, the chain fixed end 15, the moving carriage 1, the chain fixed end 14, and the traveling chain 5 are connected to travel. Let

For raising and lowering, the wire 6 coming out of the winding drum 30 of the raising and lowering drive device 4 passes through the idle sheave 7, the idle sheaves 8, 9, 10, 11, 12 in order, and the end portion of the traveling platform 2. It is fixedly supported by the wire fixing end 13. When the traveling base 2 cannot be fixedly installed over the sea, the cylinder 21 can be bent by using the rotating pin 22 as a rotating shaft as shown in FIG.

[0010]

As described above, according to the present invention, the traveling and lifting drive device is not mounted on the moving carriage, and since it is on the fixed side (it can be on the ground), it is not necessary to go to a high place, and the safety is remarkably high. It will be improved and daily inspection will be easier, and the reliability of the equipment will be improved significantly.

[Brief description of drawings]

FIG. 1 shows an embodiment of the present invention and is a view taken in the direction of arrows D-D in FIG.

FIG. 2 is a view on arrow AA of FIG.

FIG. 3 is a view taken along the line BB of FIG.

FIG. 4 is a view taken along the line C-C in FIG.

FIG. 5 is an explanatory diagram showing an example of a conventional technique.

[Explanation of symbols]

 1 Moving Carriage 2 Traveling Platform 3 Travel Drive Device 4 Elevating Drive Device 5 Travel Chain 6 Elevating Wire 7 Idle Sheave 8 Idle Sheave 9 Idle Sheave 10 Idle Sheave 11 Idle Sheave 13 Wire Fixed End 14 Chain Fixed End 15 Chain Fixed end 16 Idle sprocket 17 Wheel 18 Wheel 19 Wheel 20 Rail 21 Cylinder 22 Rotating pin 23 Ship 24 Sling 25 Lifting beam 26 Post 27 Traveling base 28 Upper beam 29 Drive sprocket 30 Winding drum 31 Truck

Claims (1)

[Claims] 1. A hoisting device for hoisting and transporting a ship such as a boat or a yacht to a predetermined location by providing a hoisting beam on each of a pair of hoisting carriages and connecting a sling to the hoisting beams. A wire fixed end is provided at one end on the ground side outside the movement range, an idle sheave is provided at the other end, idle sheaves are provided at the moving carriage and the lifting beam, and wiring is performed with a wire rope from a lifting drive device fixed on the ground side. At the same time, sprockets are provided at both ends on the ground side outside the moving range of the moving carriage, a chain is endlessly provided on the sprockets to fix a part of the chain to the moving carriage, and a traveling drive device for driving the chain is provided on the ground side. A hoisting device, which is provided in the.