JPH0733234B2 - Boat lifting device - Google Patents

Description

TECHNICAL FIELD The present invention relates to a boat hoisting device for hoisting a boat such as a yacht or a boat at an anchorage port (marina) from the sea to the land or from the land to the sea. It is a thing.

[Prior Art] A sailing yacht generally referred to as a yacht is used together with a motor boat and a motor yacht in order to drive a boat on the sea for entertainment purposes.

These boats such as yachts or boats usually have a harbor (marina), and at this marina, in order to collect the boats on the sea to the land or lower the boats on the land to the sea, it has been the conventional practice to A boat hoisting device as shown in FIGS. 7 to 7 is used.

FIG. 4 shows a trolley-type boat hoisting device a, in which a set of two inclined girders c is extended below the water surface from a quay b, and a trolley e having traveling wheels d is placed on the inclined girder c. The trolley e can mount a carriage g on which the boat f can be mounted.

A winch i in which a wire rope h is unwound and wound and stored is installed on the quay b, and an end of the wire rope h on the unwinding side is locked to a trolley e. The wire rope h is paid out or wound up to lift the trolley e.

When the boat f on land is unloaded to the sea, the boat f is mounted on the carriage g in advance, the boat f is placed on the trolley e via the carriage g, and then the trolley e is lowered to lower the boat f. f is put on the sea.

When the boat f on the sea is to be landed,
The trolley e on which was placed is lowered below the water surface,
After the boat f is received on the carriage g, the trolley e is pulled up and the boat f is collected via the carriage g.

FIG. 5 shows a platform-type boat hoisting device j, in which four columns k are erected vertically from above the water surface to below the water surface.
Among them, two winches n are connected to each other through horizontally extending girders 1 and two winches n in which wire ropes m are unwound and wound up are arranged on the girders l.
A platform o is horizontally connected to the end of the wire rope m extending from the winch n on the payout side.

A carriage g shown in FIG. 4 can be placed on the platform o, and the wire rope m is paid out or wound up by operating the winch n so that the platform o is lifted. There is.

When the boat f on land is unloaded to the sea, the boat f is mounted on the carriage g in advance, the boat f is placed on the platform o through the carriage g, and then the platform o is lowered to lower the boat f. f is put on the sea.

When the boat f on the sea is to be landed,
The platform o on which is mounted is lowered below the surface of the water, the boat f is welcomed to the carriage g, and then the platform o is raised to lift the boat f on land.

6 and 7 show a swivel boat lifting device p, in which a swinging frame r is attached to a fixed post q standing vertically on the quay b.
Is supported so as to be rotatable in a horizontal plane, and the revolving frame r
An elevating member s extending vertically is slidably fitted therein, and a table t on which a carriage g shown in FIG. 4 can be placed is formed at the lower end of the elevating member s.

At the upper end of the fixed post q, a winch v accommodating a wire rope u that can be drawn out and wound up is provided.
At the same time, the wire rope u is arranged to rotate, and the end of the wire rope u on the payout side is locked to the table t. By operating the winch v, the wire rope u is paid out or wound up to lift the table t. I'm trying to get it down.

When the boat f on land is unloaded to the sea, the boat f is mounted on the carriage g in advance, the boat f is placed on the table t via the carriage g, and then the table t is placed on the ground of the quay b. The boat f is lifted up from the surface, the table t is rotated above the water surface, and the table t is lowered below the water surface to lower the boat f to the sea.

When the boat f on the sea is to be landed,
After the table t on which the table has been placed is lowered below the surface of the water and the boat f is welcomed onto the carriage g, the table t is lifted above the ground surface of the quay b, and the table t is lifted.
The boat f is swung to the side and lowered to the ground surface of the quay b, and the boat f is lifted on land via the carriage g.

FIG. 8 is a graph showing a work cycle of the swivel boat hoisting device p. The operation of the device when the table t on the land is positioned below the water surface, and then the table t is returned to the land again, and each operation thereof The required time is shown in the horizontal axis of the graph, and the movable state of the device is shown in the vertical axis of the graph.

In the figure, the bollard is the time required to fix the bogie g to the table t, and the embarkation and engine start are the times required for the user to get on the boat f and leave the marina after the boat f is lowered to the sea. The approach position adjustment represents the time required to receive the boat f on the carriage g located in the water.

As shown in FIG. 8, in the turning type boat lifting device p,
The work cycle is 521 seconds when the boat f on the land is lowered to the sea, and 556 seconds when the boat f is placed on the sea.

Therefore, if the swivel boat lifting device p is used only for the undercarriage,
Its ability is Also, if you use it only on the upper shelf, its ability is Becomes

[Problems to be Solved by the Invention] However, in the boat hoisting devices a and j shown in FIG. 4 and FIG. 5, the foundation parts such as the inclined girder c and the support column k must be constructed in water, and Since it becomes difficult and the construction cost becomes high, daily maintenance and inspection of the submerged parts such as the inclined girder c and the support k cannot be performed.
The submerged part is quickly deteriorated due to corrosion, etc., and the service life of the boat lifting devices a, j is short.

Further, since the structures such as the inclined girder c and the pillars k are located underwater and on the water surface, they hinder the boat f that is navigating near the boat lifting devices a and j.

Further, in the boat hoisting device p shown in FIGS. 6 and 7, similarly to the boat hoisting devices a and j, the cart g is used to place the boat f on the table t or pull it out from the table t. Despite the above procedure, the table t has to be lifted or swung higher than the ground surface of the quay b, so that the work time required for the hoisting work of the boat f is long and the efficient hoisting work is efficient. Can't hope

The present invention solves the above-mentioned various problems, and an object of the present invention is to improve the service life of a boat hoisting device and shorten the working time required for hoisting work.

[Means for Solving the Problems] In order to achieve the above object, in the boat hoisting device of the present invention, the fixed post 2 installed on the quay 1 and the fixed post 2 can be rotated in a horizontal plane. Swivel frame 4 provided
And two booms 6a, 6b extending in the lateral direction, whose base ends are fixed to the revolving frame 4, supporting members 7 respectively provided at the tip ends of the booms 6a, 6b, and ascending and descending to each supporting member 7. A liftable frame 10 that is mounted so that it is possible to mount a trolley 15 that is mounted on each liftable frame 10 and that carries a boat 17 thereon.
14 and the two booms 6a, 6b of the two booms 6a, 6b are bent so as to be gently convex with respect to the edge of the quay 1 around the swing frame 4 when viewed from above. The base end is fixed to the swivel frame 4.

[Operation] In the boat hoisting and lowering device of the present invention, when the boat 17 is to be unloaded from the land, the trolley 15 on which the boat 17 is previously mounted is placed on the table 14 in advance.
After being placed on the table, the table 14 is raised to a predetermined height, and then the revolving frame 4 is rotated to position the table 14 on the water surface, and the table 14 is lowered to drop the boat 17 on the sea.

When the boat 17 is to be landed from the sea, the table 14 on which the carriage 15 is previously placed is lowered below the surface of the water, and the carriage 15
After welcoming the boat 17 to the top, the table 14 is raised to a predetermined height, then the turning frame 4 is rotated to position the table 14 on the quay 1, and the table 14 is lowered to bring the boat 17 together with the bogie 15. Collect on land.

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

FIG. 1 and FIG. 2 show an embodiment of the present invention, in which a swivel ring 3 which is movable in a horizontal plane with respect to the fixed post 2 is provided above the vertically extending fixed post 2 installed on the quay 1. ,
The swivel frame 4 is fixed on the swivel ring 3, and the fixed post 2
A swivel shaft (not shown) of a swivel drive device 5 provided on the upper part of the above is fixed to the swivel frame 4, and the base ends of two horizontally extending booms 6a, 6b are connected to the swivel frame 4.

When viewed from above, the booms 6a, 6b have a shape in which the booms 6a, 6b are bent in a gentle convex shape with respect to the edge of the quay 1 around the swing frame 4.

A pair of vertically extending support members 7 and 7 are fixed to the tips of the booms 6a and 6b, and a pair of guide members 8a and 8b are located at the upper and lower ends of the support members 7 and 7 on the same vertical axis. To be provided.

As shown in FIG. 2, the guide members 8a, 8b have a concave planar shape, and the boom members 6a, 8b are provided with the guide members 8a, 8b.
When 6b is rotated by the revolving frame 4 to a predetermined position, it overhangs on the water surface 9.

The left and right vertical members 11, 11 of the elevating frame 10 formed of an upright frame-like member are fitted in the guide members 8a, 8b so as to be able to move up and down.

In the guide members 8a and 8b, rollers 12 rotatably supported around a horizontal axis are arranged so as to sandwich the vertical member 11.

The base portions of the horizontally extending table support members 13 are fixed to the lower end portions of the vertical members 11, respectively.
Attach the tables 14 and 14 on the upper surface of 3 and fix them.

The tables 14 and 14 are installed according to the intervals between the traveling wheels 16 and 16 of the carriage 15, and the carriage 15 can mount the boat 17 thereon.

A hoisting winch 19 having two drums 18a, 18b is provided on the upper surface of the tip of each boom 6a, 6b, and a wire rope is provided.
One end of 20 is connected to one drum 18a and the other end is connected to the other drum 18b.
The wire rope 20 is hooked on the sheave 21 provided on each of the booms 6a and 6b and the sheave 22 provided on the lower portion of the elevating frame 10 while being hooked to.

A horizontally extending intermediate member 23 is fixed to an intermediate portion of the vertical members 11 and 11 forming the elevating frame 10, upper ends of the vertically extending fenders 24 and 24 are fixed to the intermediate member 23, and a lower end thereof is a lower portion of the elevating frame 10. Stick to.

In the figure, 25 is a floating pier for getting on and off the boat 17, 26
Is the stairs for going back and forth between the quay 1 and the floating jetty 25,
27a, 27b is a table 14, provided on the booms 6a, 6b by rotating the booms 6a, 6b to a predetermined position by the revolving frame 4.
It shows a pit dug down so that the upper surfaces of the tables 14 and 14 are at the same level as the upper surface of the quay 1 when the 14 is lowered.

The operation of the device of the present invention will be described below.

Boats 1 on land due to the tables 14 and 14 provided on the boom 6a
Tables 14 and 14 are in pit 27a when 7 is lowered to sea.
After rotating the revolving frame 4 by the revolving drive device 5 so as to be located immediately above the table, the hoisting winch 19 is driven to lower the elevating frame 10, and the upper surfaces of the tables 14, 14 are at the same level as the upper surface of the quay 1. Try to be.

At this time, the tables 14 and 14 provided on the boom 6b are in a state of being raised to a predetermined height, and are located on the water surface 9 on the right side of the floating jetty 25 as shown by the solid line in FIG.

Next, mount the trolley 15 on which the boat 17 is mounted in advance to the boom 6a.
Guided on the tables 14 and 14 provided in the table, the hoisting winch 19 is operated to raise the elevating frame 10 so that the tables 14 and 14 are positioned at a predetermined height, and the swivel drive device 5 is operated to move the carriage 15. The revolving frame 4 is rotated until the placed tables 14 and 14 are positioned on the water surface 9 on the left side of the floating pier 25.

When the tables 14 and 14 provided on the boom 6a rotate to the water surface 9 on the left side of the floating pier 25 as shown by the two-dot chain line in FIG. 2, the hoisting winch 19 is operated to lower the elevating frame 10. The tables 14 and 14 are lowered below the water surface 9 until buoyancy acts on the boat 17.

At this time, the tables 14 and 14 provided on the boom 6b are located immediately above the pit 27b as shown by the chain double-dashed line in FIG. 2, and in this state the upper surfaces of the tables 14 and 14 are at the same level as the upper surface of the quay 1. By descending so that while the boat 17 is being lowered to the sea on the tables 14 and 14 provided on the boom 6a, it is possible to perform the preparation for dropping the next boat 17 to the sea in parallel. Becomes

Boats 1 at sea by the tables 14 and 14 provided on the boom 6a
Before picking up 7 on land, trolley 15 should be placed on tables 14 and 14 in advance.
It is placed on the table, and the tables 14 and 14 are lowered below the water surface 9 on the left side of the floating jetty 25 as shown by the chain double-dashed line in FIG. 2 in the same manner as when the boat 17 is lowered to the sea. .

When the boat 17 is welcomed directly above the carriage 15 located below the surface of the water, the hoisting winch 19 is driven to drive the table 14,14.
Raise the elevating frame 10 so that the table is located at a predetermined height, and operate the turning drive unit 5 to move the tables 14 and 14 to the pit 2
Position directly above 7a.

At this time, the tables 14, 14 provided on the boom 6b are in a state of being raised to a predetermined height, and are located on the water surface 9 on the right side of the floating pier 25, as shown by the solid line in FIG.

When the tables 14 and 14 provided on the boom 6a are rotated to just above the pid 27a, the hoist 19 is operated to lower the elevating frame 10 so that the upper surfaces of the tables 14 and 14 are at the same level as the upper surface of the quay 1. Then, the carriage 15 is pulled out onto the quay 1, and the boat 17 is lifted on land.

At this time, the tables 14 and 14 provided on the boom 6b are located on the water surface 9 on the right side of the pier 25, as shown by the solid lines in FIG. 2, and in this state, the tables 14 and 14 on which the cart 15 is placed.
The table below the boom 6a.
While the cart 15 carrying the boat 17 is pulled out of the boats 14 and 14, it is possible to carry out the work of hoisting the next boat 17 on land in parallel.

When not using the device, the hoisting winch 19
Each elevating frame 10 is raised so that the tables 14 and 14 are positioned at a predetermined height, and the swing drive device 5 is further operated to prevent the booms 6a and 6b from protruding from the quay 1.

Therefore, in the device of the present invention, since there is no part that is always located below the water surface 9, the construction cost required to install the device is low,
Routine inspection and maintenance can be easily performed, and since there is no deterioration due to corrosion of underwater parts, the service life of the device is long, and there is no hindrance to boats navigating in the vicinity when the device is stopped.

Similar to FIG. 8 described above, FIG. 3 is a graph showing the work cycle of the device of the present invention. The operation of the device when working is performed using both the tables 14 and 14 provided on the booms 6a and 6b. Alternatively, the time required for each work is shown along the horizontal axis of the graph.

The upper part of the graph represents the operation of the boom 6a that hangs the boat 17, and the lower part represents the operation of the boom 6b that hangs the boat 17, and the working cycle is 377 seconds when the boat is erected and 447 seconds when the boat is erected.

Therefore, in the device of the present invention, assuming that the tables 14 and 14 of both booms 6a and 6b are used only for the undercarriage, the capability thereof is Also, if you use it only on the upper shelf, its ability is It has more than twice the capacity of the conventional swivel boat hoisting device p shown in FIGS. 6 and 7.

This is because the two booms 6a and 6b are bent in a gentle convex shape around the swing frame 4 with respect to the edge of the quay 1 when viewed from above, and thus the swing angle of the swing frame 4 is increased. Is small.

Of course, it is also possible to use one of the booms 6a and 6b for the upper rack and the other for the lower rack.

The boat hoisting and lifting device of the present invention is not limited to the above-mentioned embodiments, and it goes without saying that various modifications can be made without departing from the scope of the present invention.

[Effects of the Invention] As described above, according to the boat lifting device of the present invention,
Various excellent effects as described below can be obtained.

1) Elevating frames 10 are provided on two booms 6a, 6b extending in the lateral direction, whose base ends are fixed to the swing frame 4, and the booms 6a, 6b are centered on the swing frame 4 when viewed from above. Since it has a shape that is gently curved with respect to the edge of the quay 1, during the work of lowering one of the boats 17 into the sea or the work of landing it on land,
Preparatory work for lowering the other boat 17 to the sea or preparation work for landing on the land can be performed in parallel, so that the work efficiency of the boat is significantly improved compared to the conventional one, and The cost per operation required for the work can be reduced.

2) Since both booms 6a and 6b each having a table 14 that can be raised and lowered are fixed to a common portion such as the fixed post 2 and the swivel frame 4, it is possible to install the boom at a lower cost than providing a plurality of conventional devices. .

3) Since it is not necessary to construct a jetty etc., the foundation work for the quay 1 can be made at a low price.

4) Since there is no part of the device that is always under water, the installation cost required to install the device is extremely low, and daily inspection and maintenance work can be performed easily, so the service life of the device is extended. With the boat 17 sailing near the device
It does not become an obstacle.

[Brief description of drawings]

1 is a side view of an embodiment of the present invention, FIG. 2 is a plan view of an embodiment of the present invention, FIG. 3 is a graph of a work cycle of the apparatus shown in FIGS. 1 and 2, and FIG. FIG. 5 is a side view of a conventional trolley-type boat lifting device, FIG. 5 is a side view of a conventional platform-type boat lifting device, FIG. 6 is a side view of a conventional swing-type boat lifting device, and FIG. FIG. 6 is a plan view of the apparatus shown in FIG. 6, and FIG. 8 is a graph of a work cycle of the apparatus shown in FIGS. 6 and 7. In the figure, 1 is a quay, 2 is a fixed post, 4 is a swivel frame,
6a and 6b are booms, 7 is a supporting member, 10 is a lifting frame, 14
Is a table, 15 is a dolly, and 17 is a boat.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (56) References Actual flat 1-164295 (JP, U) Actual open 48-21373 (JP, U) Actual 57-72362 (JP, U)

Claims (1)

[Claims] 1. A fixed post (2) installed on the quay (1).
A swivel frame (4) provided on the fixed post (2) so as to swivel in a horizontal plane, and two laterally extending booms (the base end of which is fixed to the swivel frame (4) ( 6a)
(6b), supporting members (7) respectively provided at the tip portions of both booms (6a), (6b), lifting frames (10) mounted on each supporting member (7) so as to be lifted, and each lifting frame (1
0) and a table (14) on which a trolley (15) carrying a boat (17) can be placed, and the booms (6a) (6b) when viewed from above have the swing frame (4). It features that the base ends of both booms (6a) and (6b) are fixed to the revolving frame (4) so as to form a shape that bends gently toward the edge of the quay (1) around the The boat lifting device.