JP2577993B2 - Small ship hanging jig - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a small boat, such as a boat for sightseeing and recreation, which is used in a boathouse installed in a marine leisure land, a lakeside, a marina near a beach, or the like. The present invention relates to a lifting jig.

[Prior Art] Conventional techniques for lifting a small boat such as a boat from the water surface include the following.

That is, a method of surrounding the ship bottom with a sling material (soft sling) formed of a soft material so as not to damage the hull and lifting both ends by winches via suspension beams (FIG. 4), and FIG. As described above, a small ship is guided on a stool placed in the water, set on the stool, and then the stool is vertically pulled up by a winch.

[Problems to be Solved by the Invention] In the conventional methods described above, the slinging work for hanging the sling on the hull and the setting work of the ship on the gantry must be performed manually by humans, which requires time and labor. And the work efficiency was extremely poor, and the risk of damage to the ship was constantly increasing.

[Means for Solving the Problems] According to the first aspect of the present invention, the hanging jig of the present invention is a hanging jig for a small boat such as a boat floating on water, and is horizontally expandable and contractible. A pair of left and right arms each having a substantially L-shape, and a fork which is fitted to the arm and is capable of extending and contracting in the vertical direction with respect to the arm, and which is capable of turning, is provided with compressed air which abuts on both sides of the flank of the small boat. The sealed hollow spherical elastic body was disposed on the arm via a floater, and a cushion material was fixed to a contact point on the bottom of the ship above the tip of the fork.

Further, in the second invention, the suspension jig of the first invention is configured to be suspended on a bogie having wheels that can be driven to travel horizontally on rails.

[Operation] Since the present invention is configured as described above, in order to lift a small boat floating on the water with a lifting jig, first, a pair of left and right arms are contracted in the horizontal direction, and the inside of the arm is contracted. The flank is gripped by the hollow spherical elastic body. Next, the outward fork on the lower side of the arm is swiveled inward, and the fork is raised with respect to the arm until the cushion material on the upper end of the fork contacts the bottom of the ship. As described above, the hanging jig is lifted in a state where the side and bottom of the ship are simultaneously held by the arm and the fork.

In the second invention, after being lifted, the bogie can be moved in the longitudinal direction of the boat by driving the bogie.

[Example] Hereinafter, an example according to the present invention will be described in detail with reference to the drawings.

1 to 3 show an embodiment of the present invention. FIG. 1 is a front view, FIG. 2 is a side view, and FIG. 3 is a partially enlarged front view.

In the drawing, a pair of right and left hanging jigs 100 is composed of at least two pairs (two pairs as shown in FIG. 2 in this embodiment) in the longitudinal direction of a small boat, and 1 is an L-shaped arm 2. A hydraulic cylinder that expands and contracts in the horizontal direction. The piston rod 1a and the arm 2 are connected by a coupling 1b. Below the vertical portion of the arm 2, a substantially L-shaped fork 6 expands and contracts in the vertical direction and turns. A drive 3 having an actuating mechanism is also provided. That is, as shown in FIG. 3, a hydraulic cylinder 3h for extending and retracting the fork 6
And a rotary drive mechanism for rotating the fork 6 about a vertical axis.
By engaging a spur gear 3d attached to 3c and a spur gear 3b attached to an output shaft of a reduction motor 3a arranged in a block 2a, a hydraulic cylinder 3g and a fork 6 fixed to the lower end of the rotating shaft 3c are turned. The bending angle of the fork 6 is substantially along the angle of the bottom of the small boat, and a cushion material 7 such as rubber is fixed to the upper end of the fork 6. Further, the inside of the block 2a is made of a material made of foaming synthetic resin and having a specific gravity much smaller than 1;
Floater 4 extending along the longitudinal direction of is fixedly mounted, and a hollow spherical elastic body 5 is further fixed inside. 3g is a gear protective cover.

If the width of the stern of the ship is different between the bow and the stern, the two sets of front and rear arms 2 have different amounts of expansion and contraction in the horizontal direction. Accordingly, the floater 4 moves in the longitudinal direction (the horizontal center axis of the ship). ), The block 2a and the floater 4 are desirably pinned.

As described above, the hanging jig 100 constituted by the reference numerals 1 to 7
As shown in FIG. 1, it is attached to a frame 10 and hangs down on a bogie 8 having wheels 9 rolling on rails 11 extending along a pair of left and right channel steels 10a horizontally traversing at regular intervals. When fixed, the ship 12 can be moved not only vertically but also horizontally.

Conversely, when the widths of the vessels of the vessels to be processed are almost the same, not only the floater 4 but also the elastic body 5 can be formed in a cylindrical shape.

Next, the operation of the hanging jig of the present invention configured as described above will be described.

In order to transport and store a small boat floating on the sea and stopped at a predetermined place on land, the hull must be safely and
It must be held efficiently and automatically by remote control. The suspending jig of the present invention is for realizing this. First, the suspending jig 100 is traversed and lowered to just above the small boat 12, and the inner dimension of the pair of left and right hollow spherical elastic members 5 is determined by the hull width. The piston rod of the hydraulic cylinder 1
Advance 1a. Further, the hydraulic motor 3a is driven so that the bent portion 6a of the fork 6 is directed outward, and the hydraulic cylinder 3h and the fork 6 are rotated and adjusted by the gears 3b and 3d.
Thereafter, in the state shown in FIG. 1 or FIG. 3, the piston rod 1a of the hydraulic cylinder 1 is contracted and the fork 6 is bent so that the ship's flank is gripped by the hollow spherical elastic body 5 and the bottom of the ship is gripped by the cushioning material 7 of the fork 6. The fork 6 is lifted until the cushion member 7 comes into contact with the bottom of the boat by the hydraulic cylinder 3h.

After the grip of the hull is completed as described above, the carriage 8 is driven to move laterally.

In this embodiment, an example in which the bogie 8 is coupled to the hanging jig 100 is shown. However, after the hull is gripped, the bogie 8 and the rails 11 are provided along the hoist to lift the hull from the sea. The frame 10 itself may be configured to be vertically movable.

[Effects of the Invention] The hanging jig for a small boat of the present invention is configured as described above, and the arm can expand and contract to the left and right, the fork can expand and contract in the up and down direction, and the bent portion can be turned. A hollow elastic body that can be deformed when gripping is provided in the gripping part of the ship's flank, and a cushion material is provided at the contact point on the bottom of the ship, so that the ship's hull can be gripped safely and securely without damage be able to.

In addition, since these operations can be automatically performed by remote control, it is efficient.

Therefore, the slinging operation required by the conventional technique is not required, so that the number of workers can be omitted, and the small boat can be gripped even if the boat has a certain width at the stop position.

Further, it is also possible to achieve full automation of storing and unloading the ship by combining with an automatic transfer device of a boat yard which is a storage place of the ship.

[Brief description of the drawings]

1 to 3 show an embodiment of the present invention. FIG. 1 is a front view, FIG. 2 is a side view, and FIG. 3 is a partially enlarged front view.
FIGS. 4 and 5 show a conventional embodiment. FIG. 4 is an explanatory view of a method of hoisting a hull by a winch with a soft sling via a suspension beam. FIG. It is explanatory drawing of the lifting method. 1 ... hydraulic cylinder, 2 ... arm, 3 ... drive device,
3a: Reduction motor, 3b: Spur gear, 3c: Rotating shaft, 3d:
... Spur gear, 3e ... Thrust bearing, 3f ... Bearing cover, 3g
…… Cover, 3h …… Hydraulic cylinder, 4 …… Floater, 5
... hollow spherical elastic body, 6 ... fork, 7 ... cushion material, 8 ... trolley, 9 ... wheels, 10 ... frame, 10a ...
Channel steel, 11… rail, 12… small boat, 100… hanging jig.

Claims (2)

(57) [Claims] 1. A hanging jig for a small boat such as a boat floating on the water, comprising a pair of left and right arms each having a substantially L-shape which can be expanded and contracted in a horizontal direction, and fitted to the arms to move up and down with respect to the arms. A hollow spherical elastic body, which is provided with a fork which is expandable and contractible in the direction and is capable of turning, and which is filled with compressed air in contact with both sides of the flank of the small vessel via a floater, is disposed on the arm; A hanging jig for a small boat, wherein a cushion material is fixed to an abutment portion on an upper side of a bottom of the boat. 2. A hanging jig for a small boat in which the hanging jig according to claim 1 is hung on a bogie having wheels that can be driven in a horizontal direction on rails.