JP2005212534A - Working boat hook device and boat lifting device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a working boat hook device which has simple constitution, facilitates and ensures attaching/detaching of a wire rope to/from the working boat without adding bending to a fixing fitting of the wire rope even when obliquely pulling the wire rope. <P>SOLUTION: The working boat hook device has a dome fixed to the working boat, the hook fixed to the wire rope and tiltably housed in the dome, and a tilting stopper which is provided in the dome, enables attaching/detaching of the hook, and prevents from improperly being slipped out. The hook is an approximate disc having an approximate spherical shape convex surface, and is equipped with the dome having approximate spherical shape concave surface, a hook locking window through which the hook can not pass and the wire rope enters forcibly, a hook passing window where the hook can pass, and a rope passing window where the wire rope cannot pass and connects the hook locking window and the hook passing window. When the tilting stopper uprises, the hook is equipped with a projection part abutting to the lower end of the hook passing window. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a lifting device for a working boat and the like, and a working boat hook device used for the lifting device.

Simplifying the structure and facilitating / reliable operation of the “hook device” for detachably connecting the work boat and the wire rope for raising and lowering in the boat raising device for raising and lowering the work boat mounted on the ship It is planned.
For example, the hook device is composed of a convex member attached to the tip of the wire rope and a concave member having an opening fixed on the small boat, the convex member is guided from the fitting hole of the concave member to the hollow portion, The upper surface of the convex member is fitted to the curved surface of the concave member, and the wire rope is pulled out from the opening to connect the wire rope side and the small boat side. In addition, a stopper is provided adjacent to the fitting hole, which falls down only in the inner direction of the recessed member and is normally raised by a spring. (For example, refer to Patent Document 1).

Japanese Patent Laid-Open No. 10-316085 (page 4-5, FIG. 1)

However, the invention has the following problems.
(A) Since the size of the opening is small, the wire rope fixing bracket comes into contact with the opening only by slightly tilting the wire rope. For this reason, when the wire rope is so-called “obliquely pulled” in a direction other than the fitting hole, “bending” is applied to the wire rope fixing bracket.
(Ii) When the wire rope is “obliquely pulled” in the direction of the fitting hole, the wire rope is largely inclined until it comes into contact with the stopper, but the convex portion (wire rope side) and the stopper (small boat) Side) is shallow and unsafe.

The present invention has been made in view of the above, and has a simple configuration, so that even if the wire rope is so-called “obliquely pulled”, no “bending” is added to the wire rope fixing bracket, and the wire An object of the present invention is to provide a work boat hook device in which a rope and a work boat can be easily attached and detached.
In the present invention, the working boat is not limited to a boat for working literally, but is a generic name including boats of various uses, shapes, and sizes.

(1) A work boat hook device according to the present invention includes a dome fixed to a work boat, a hook fixed to a wire rope for raising and lowering the work boat, and housed in a tiltable manner in the dome, A working boat hook device provided inside a dome and having a tilting stopper that tilts to allow the hook to be stowed and stands up to prevent the hook from coming out;
The hook is a substantially disk having a substantially spherical convex surface, and has a larger diameter than the wire rope,
The dome is provided on a side surface of a substantially spherical concave surface that is slidable on the convex surface of the hook, a hook locking window provided on the concave surface through which the hook cannot pass and the wire rope enters. A hook passage window through which the hook can pass; and a rope passage window through which the wire rope can pass and connect the hook locking window and the hook passage window;
The tilt stopper includes a protruding portion that comes into contact with a lower end of the hook passage window when standing up.

(2) The tilting shaft of the tilting stopper protrudes outside the dome, and the operating lever is fixed to the protruding portion.
(3) Further, a through hole is provided on a side surface of the dome, and an intrusion stopper that enters the through hole and prevents the tilt stopper or the actuating lever from tilting is provided.
(4) A fixing bracket for fixing the wire rope is installed on the convex surface of the hook, and the outer diameter of the fixing bracket is smaller than the inner diameter of the hook locking window, and the hook is located with respect to the center of the dome. And at least 15 ° tiltable.
(5) Further, a spring for urging the tilt stopper toward the outside of the dome is provided.

  (6) Furthermore, a boat raising apparatus according to the present invention is installed in a frame that is tiltably mounted on a hull, a frame tilting apparatus that tilts the frame, a wire rope for raising and lowering a work boat, and the frame. A wire rope guide device that guides the wire rope, a winch device that can wind up the wire rope, a dome fixed to the work boat, and a wire rope that is fixed to the wire rope and is tiltably accommodated in the dome. The working boat hook device according to any one of (1) to (4), which has a hook to be operated.

  Therefore, it has a simple structure, and even if the wire rope is so-called “obliquely pulled”, the wire rope fixing bracket is not “bent”, and the wire rope and the work boat can be easily and reliably attached and detached.

[Embodiment 1]
(Work boat hook device)
1, 2, 3 and 4 are a plan view, a cross-sectional view in side view, a front view and a cross-sectional view in side view, respectively, showing the work boat hook device according to Embodiment 1 of the present invention.
1, 2, 3 and 4, the work boat hook device 1 is fixed to a dome 10 fixed to the work boat 2 and a wire rope 20 for raising and lowering the work boat 2 so as to be freely tiltable in the dome 10. And a hook 30 to be accommodated.

(Wire rope)
One end of the wire rope 20 is fixed to a fixing bracket 21, and the fixing bracket 21 is installed on the hook 30. The other end of the wire rope 20 is wound around a winding drum of a winch device (not shown).
The wire rope 20 is a general term for “hanging rope”, and may be a chain in addition to a steel or fiber rope. The manner in which the wire rope 20 is fixed to the hook 30 is not limited. The fixing metal 21 is fixed to the hook 30 mechanically or metallurgically, or the fixing metal 21 is removed to directly attach the wire rope 20 to the hook 30. It may be fixed mechanically or metallurgically.

(dome)
The dome 10 has a substantially spherical concave surface 11 formed on the inner ceiling. A hook locking window 14 is formed on the top of the concave surface 11 so that the hook 30 is locked (the same is impossible to pass through) and the fixing bracket 21 of the wire rope 20 enters, and the hook 30 passes through the side surface of the dome 10. A free hook passage window 13 is formed, and further, an opening connecting the hook locking window 14 and the hook passage window 13, the hook 30 cannot pass therethrough, and the fixing bracket 21 of the wire rope 20 can pass through. A rope passing window 12 is formed.

(hook)
The hook 30 has a disk shape having a substantially spherical convex surface 31, and the fixing fitting 21 of the wire rope 20 is fixed thereto. That is, it is connected to the wire rope 20. A truncated cone 32 is formed on the opposite surface of the convex surface 31.
Therefore, the hook 30 passes through the hook passage window 13 and can be stored in the dome 10. At this time, the wire rope 20 or its fixture 21 passes through the rope passage window 12 and the hook locking window 14. Projecting from the dome 10.

(Tilt stopper)
A tilt stopper 40 is disposed inside the dome 10. A rotation shaft 41 is fixed to the tilt stopper 40, and the rotation shaft 41 penetrates the side wall of the dome 10 and is supported rotatably. When the tilt stopper 40 tilts inward, the hook 30 moves away from the position of the hook passage window 13, so that the hook 30 can pass through the hook passage window 13. On the other hand, when the tilt stopper 40 stands up, the hook 30 Since the hook passage window 13 is blocked, the hook 30 cannot come out of the dome 10.
An operating lever 42 is fixed to a portion of the rotating shaft 41 protruding from the dome 10. Since the actuating lever 42 is fixed in substantially the same phase as the tilting stopper 40, the tilting stopper 40 is also raised when the actuating lever 42 is raised, and the actuating lever 42 is moved to the center side of the dome 10 (in FIG. When tilted around, the tilting stopper 40 tilts in the same direction.

Further, the tilt stopper 40 is substantially L-shaped, and is formed with a protruding portion 43 (hereinafter referred to as a chin portion) protruding toward the outside of the dome 10, and the chin portion 43 is formed on the hook passage window 13 of the dome 10. The spring 50 is biased toward the outside of the dome 10 until it comes into contact with the lower edge surface 15.
Therefore, even if the dome 10 is largely tilted and a force in the extracting direction is applied to the tilt stopper 40, the position thereof does not change or the side wall of the dome 10 is not expanded (see FIG. 4). Further, the tilt stopper 40 is not tilted inadvertently and is reliably positioned by the spring 50, so that the hook 30 is not accidentally pulled out.

(Intrusion stopper)
Further, an intrusion stopper 60 is provided so as to penetrate the side wall of the dome 10 so as to enter and withdraw substantially parallel to the rotation shaft 41 of the tilt stopper 40. Therefore, when the intrusion stopper 60 has entered the dome 10, if the tilt stopper 40 tries to tilt toward the center of the dome 10 (clockwise in FIG. 2), the tilt stopper 40 or the actuating lever 42 moves to the intrusion stopper 60. It cannot abut and tilt further. Further, the hook 30 itself cannot contact the intrusion stopper 60 and move further downward.
1 and 3, the intrusion stopper 60 protrudes from the side surface of the dome 10, but the present invention is not limited to this, and the intrusion stopper 60 is a short one that does not protrude and does not contact the operating lever 42. It may be possible to make contact with only 40.
In addition, the intrusion stopper 60 is provided with a retaining means (not shown) for facilitating removal and retaining. When the intrusion stopper 60 is provided, the installation of the spring 50 may be omitted.

(Front table)
A front table 70 is installed on the front surface (left side in FIGS. 1 and 2) of the hook passage window 13 of the dome 10. The front table 70 is substantially the same height as the lower edge surface 15 of the hook passage window 13, and a guide groove 71 is formed by a pair of guide plates 72. Therefore, when the truncated cone 32 of the hook 30 is placed in the guide groove 71, the hook 30 is guided to the hook passage window 13.

(Hook storage and removal)
Therefore, when the hook 30 is accommodated in the dome 10, first, the intrusion stopper 60 is extracted, and the operating lever 42 is tilted toward the center of the dome 10 (clockwise in FIG. 2) or not. However, if the hook 30 is strongly pushed toward the inside of the dome 10, the tilt stopper 40 tilts, so that the hook 30 passes through the hook passage window 13 and enters the inside of the dome 10.
When the hook 30 is lifted above the dome 10, the tilting stopper 40 (same as the operating lever 42) is raised by the bias of the spring 50. Therefore, if the intrusion stopper 60 is intruded, the hook 30 is securely stored inside the dome 10 and does not come out accidentally.
On the other hand, when the hook 30 is extracted from the dome 10, first, the intrusion stopper 60 is extracted, and the operation lever 42 is tilted toward the center of the dome 10 (clockwise in FIG. 2) so that the tilt stopper 40 is moved to the hook passage window 13. When the hook 30 is moved away from the position, and the hook 30 is pushed down and pulled out toward the hook passage window 13, the hook 30 passes through the hook passage window 13 and is easily extracted.

(Hook tilt)
Since the convex surface 31 of the hook 30 and the concave surface 11 of the dome 10 are both substantially spherical and slidable with respect to each other, they are in contact with each other (the same as when the hook 30 is pulled up). 30 can be tilted in any direction with respect to the central axis of the dome 10.
Further, if the outer diameter of the fixture 21 fixed to the hook 30 is made smaller than the inner diameter of the hook locking window 14 of the dome 10 and a predetermined clearance is secured, the hook 30 can be attached to the dome 10. It can be freely tilted in any direction with respect to the central axis within a predetermined angle, for example, within a range of 15 ° on one side. In addition, it will incline more than this in the direction of a rope passage window.
Therefore, even when the work boat lifted through the work boat hook device 1 is so-called “obliquely pulled”, “bending” does not act on the work boat hook device 1 (fixing bracket 21 or the like). .

[Embodiment 2]
(Boat device)
5A and 5B are front views schematically showing a boat raising apparatus according to Embodiment 2 of the present invention, in which FIG. 5A is a state in which the work boat is lifted vertically, and FIG. 5B is a state in which the work boat is lifted obliquely. Is shown. In addition, the same code | symbol is attached | subjected to this same part as Embodiment 1 (FIGS. 1-4), and one part description is abbreviate | omitted.
In FIG. 5, the boat raising apparatus 100 is installed on a “01 deck” (hereinafter referred to as a deck 201) of the hull 200. The boat raising apparatus 100 includes a substantially C-shaped frame 210 installed on a deck 201 so as to be tiltable, a wire rope 20 for raising and lowering the work boat 2, and a wire installed on the frame 210 for guiding the wire rope 20. Rope guide device 220 (configured by grooved guide rollers 220a, 220b, 220c, 220d), a frame tilting device 230 that tilts the frame 210, and a winch device (not shown) that winds and unwinds the wire rope 20. And the work boat hook device 1 described in the first embodiment (having a dome fixed to the work boat 2 and a hook fixed to the wire rope 20 and accommodated in a tiltable manner in the dome). .
In the figure, the dome of the work boat hook device 1 is directly fixed to the work boat 2 at the bow of the work boat, and a “stepladder (not shown)” for fixing the dome is installed in the work boat 2 at the stern. A dome is fixed to the stepladder. The manner in which the dome is fixed to the work boat 2 is not limited.

Therefore, the work boat 2 to which the dome of the work boat hook device 1 is fixed in advance is placed on the deck 201 (placed on a mounting table (not shown)), and is placed inside the dome of the work boat hook device 1. A hook fixed to the wire rope 20 can be stored.
Even when the work boat 2 is “obliquely pulled”, the hook of the work boat hook device 1 can be tilted, so that an unreasonable force may be exerted on the work boat hook device 1 (such as a fixing bracket of the wire rope 20). Absent.

Furthermore, since the work boat 2 can be easily removed from the wire rope 20 because the work boat 2 can be easily pulled out from the dome of the work boat hook device 1 in a state where the work boat 2 is placed on the sea surface. It can be released quickly.
Then, the work boat 2 is easily recovered from the sea surface to the hull 200 by a process reverse to the above process. At this time, even if the work boat 2 moves or swings and the wire rope 20 is “obliquely pulled”, no excessive force is applied to the work boat hook device 1.

  In the above, the embodiment in which the work boat hook device 1 is installed in the boat raising device 100 that lifts the work boat 2 has been described, but the present invention is not limited to this. For example, the boat raising device 100 can be installed in a place other than the hull 200, and the work boat hook device 1 is a device for lifting and towing an object other than the work boat, and generally means for attaching and detaching the object and the wire rope. Can be used as

  Since the present invention has the above-described configuration, it can be widely used as a connecting means for connecting a work boat, a raised object or a towed object, and a wire rope in various types of boat raising devices, hoists or towing devices.

The top view which shows the working boat hook apparatus which concerns on Embodiment 1 of this invention. BRIEF DESCRIPTION OF THE DRAWINGS Sectional drawing of the side view which shows the working boat hook apparatus which concerns on Embodiment 1 of this invention. The front view which shows the working boat hook apparatus which concerns on Embodiment 1 of this invention. BRIEF DESCRIPTION OF THE DRAWINGS Sectional drawing of the side view which shows the working boat hook apparatus which concerns on Embodiment 1 of this invention. The front view which shows typically the boat raising apparatus which concerns on Embodiment 2 of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Work boat hook apparatus 2 Work boat 10 Dome 11 Concave surface 12 Rope passage window 13 Hook passage window 14 Hook engagement window 15 Edge end surface 20 Wire rope 21 Fixing bracket 30 Hook 31 Convex surface 32 Frustum 40 Tilt stopper 41 Rotating shaft 42 Operation Lever 43 Jaw 50 Spring 60 Intrusion Stopper 70 Front Table 71 Guide Groove 72 Guide Plate 100 Lifting Device 200 Hull 201 Deck 210 Frame 220 Wire Rope Guide Device (Guide Roller) 230 Frame Tilt Device

Claims (6)

A dome fixed to the work boat; a hook fixed to a wire rope for raising and lowering the work boat; and a tiltable housing in the dome; A working boat hook device having a tilting stopper that allows storage and stands up to prevent the hook from coming out;
The hook is a substantially disk having a substantially spherical convex surface, and has a larger diameter than the wire rope,
The dome is provided on a side surface of a substantially spherical concave surface that is slidable on the convex surface of the hook, a hook locking window provided on the concave surface through which the hook cannot pass and the wire rope enters. A hook passage window through which the hook can pass; and a rope passage window through which the wire rope can pass and connect the hook locking window and the hook passage window;
The work boat hook device according to claim 1, wherein the tilting stopper includes a protruding portion that comes into contact with a lower end of the hook passage window when the tilting stopper stands.   2. The workboat hook device according to claim 1, wherein a tilting shaft of the tilting stopper projects to the outside of the dome, and an operating lever is fixed to the projecting portion.   The work boat hook device according to claim 1, wherein a through-hole is provided in a side surface of the dome, and an intrusion stopper that enters the through-hole to prevent the tilt stopper or the actuating lever from tilting. .   A fixing bracket for fixing the wire rope is installed on the convex surface of the hook, the outer diameter of the fixing bracket is smaller than the inner diameter of the hook locking window, and the hook tilts at least 15 ° with respect to the center of the dome. The work boat hook device according to any one of claims 1 to 3, wherein the work boat hook device is free.   The work boat hook device according to any one of claims 1 to 4, further comprising a spring that urges the tilt stopper toward the outside of the dome. A frame installed in a tiltable manner on the hull,
A frame tilting device for tilting the frame;
A wire rope to raise and lower the work boat;
A wire rope guide device installed on the frame for guiding the wire rope;
A winch device capable of freely winding the wire rope;
A workboat hook device according to any one of claims 1 to 5, further comprising a dome fixed to the workboat and a hook fixed to the wire rope and accommodated in a tiltable manner in the dome. Lifting device characterized.

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