JPS63121589A - Drawing method for tagline and drawing hook - Google Patents

Abstract

PURPOSE:To aim at full automation for the drawing work of a tagline, by holding an eye splice of the tagline with the closable hook tied fast to a rope tip, and drawing the tagline thereinto. CONSTITUTION:An eye splice 9 of a tagline 8 is held by the closable hook 1 tied fast to a tip of a rope 7 and drawn into a depot ship, so that a hook guide 12, guiding the hook 1 into the ship, is installed whereby a surface to be made by the tagline 8 is guidable as horizontality or verticality in one's own way. And, the eye spline 9 can be drawn thereinto in a state of being opened all the time. In addition, there is provided with a limit switch 14 which shows a fact that the tagline 8 is drawn in up to a position of a cylinder to be expanded and contracted horizontally of vertically to this device, and receiving this signal, the cylinder is expanded long so as to pierce the eye splice 9, thus the tagline 8 is automatically stopped. And, the rope 7 can be automatically separated from the tagline 8 by a narrow part 15 of a hook opening guide plate 13.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a tug line retracting method and retracting hook that connects a tugboat and a ship (hereinafter referred to as the ship).

[Prior art]

The work of pulling a tug line from a tugboat to a ship conventionally requires four to five workers and involves physical labor, so various efforts have been made to automate and save labor in this work. As an example of such automation and labor saving, tag line retracting devices with trade names such as Tag Line Master shown in FIG. 5 and Tag Line Hook shown in FIG. 6 are commercially available.

[Problem that the invention seeks to solve]

With the tagline master and tagline hook mentioned above,
As shown in Figure 7, the metsenger robe is tied to the ice splice of the tug line, and the tug line is pulled up onto the ship while winding this metsenger rope with a winch, so that the surface created by the ice splice becomes horizontal. There was a problem that the eye splice of the tag line was not constant because it was vertical, diagonal, or closed. Therefore, the eye splice of the tag line was changed from the tag line master's tag line hitch or tag line master. Even if you try to connect the tag line of the line hook, it may not be possible to do so as it is.After changing the surface made by the eye splice to be horizontal by one person, it is necessary to attach the tag line to the bit or hook. In addition, it was necessary to manually remove the metsenger rope from the tag line, making it impossible to completely automate the work of pulling in the tag line.

[Means for solving problems]

This invention aims to solve the following problems and completely automate the tag line drawing process.
A method of pulling in the tag line by grasping the eye splice of the tag line with an openable/closable hook tied to the end of the rope, and two plate-like bodies with a recess formed at one end in a direction perpendicular to the plate surface. Overlap so that the recesses form an approximately circular shape,
A hook for retracting the tag line, in which the approximately central parts of both plate-shaped bodies are connected with a hinge, a hinge pin, and a coil spring so that they can rotate freely and the four parts can be closed, and the other ends of both plate-shaped bodies are connected with a link. It provides:

[For production]

The ice splice of the tug line is pulled into the vessel by grasping it with an openable/closable hook tied to the end of the rope.The ice splice of the tug line is created by installing a device on the vessel to guide the hook. You can guide the surface horizontally or vertically as you wish. Also, the eye splice can be retracted in an open state at all times.

Furthermore, if this device is equipped with a limit switch that indicates that the tag line has been drawn to the position of the cylinder that expands and contracts horizontally or vertically, the cylinder will extend to penetrate the eye splice in response to the signal from the limit switch.
Tag lines can also be locked automatically. In addition,
If a hook pushing section is provided near the end of the guide for pushing the end of the hook opposite to the gripping section of the eye splice to open the hook, the messenger rope can be automatically separated from the tag line. I can do it.

In addition, two plate-like bodies each having a recess formed at one end of the hook in a direction perpendicular to the plate surface are stacked together so that the recesses form a substantially circular shape, and the longitudinal center of both plate-like bodies is hinged. When using a hook that is connected to the hinge pin and coil spring to allow rotation and closure of the recess, and the other end of the two plate-like bodies is connected by a link, connect the metsenger rope to the center of the link and attach the tag line. By retracting, the tension of the rope always acts on the hook to close the hook, so combined with the force of the coil spring, the hook will not come off the eye splice of the tag line.

〔Example〕

Embodiments of the present invention will be described based on FIGS. 141 to 4. FIG. 1 shows an embodiment of the tag line retracting hook of the present invention, (a) is a plan view thereof, (
b) is a side view. This hook (1) consists of two plate-like bodies (2) each having a recess formed at one end in a direction perpendicular to the plate surface.
Hinge (3), hinge pin (4), coil spring (5)
) and a link (6), and after the two plate-like bodies (2) are overlapped so that the concave portions form a substantially circular shape, a hinge (3) and a hinge pin (4) are attached at approximately the center of the longitudinal direction. and a coil spring (5) to rotate freely and to close the recess, and the other end of both plate-like bodies (2) is connected to a link (
8).

Then, the tip of the metsenger rope (7) for pulling in the tag line is tied to the center of this link (6).

To pull in the tug line, pass the metsenger rope (7) with the hook (1) attached from the ship to the tug boat, and hold the eye splice (9) of the tug line (8) with the hook (1) on the tug boat. start from. To grip the eye splice (3) with the hook (1), as shown in Figure 2, push the end of the hook (1) opposite to the four-part forming part to apply a rotational force that overcomes the rotational force of the coil spring (5). The procedure is as follows: open the hook (1), hold the eye splice (8) in this state, and then remove the force pushing the end. After doing this, as shown in Figure 3, the ship's winch (lO) is used to wind up the messenger robe (7), and at the same time the tug line (
8) In front of the ship's winch (lO), as shown in Figure 3, there is a tug line handler/release cylinder (11) that can be raised and lowered, a hook guide (12), and a hook opening guide plate. Place (13). When the tug line (8) reaches the ship, the hook (1) holding the ice splice (8) of the tug line (8) is guided by the hook guide (12), so the ice of the tug line (8) The surface created by Price (8) is always horizontal. When the hook (1) moves further forward and reaches the hook opening guide plate (13), the hook (1) contacts a stopper actuating limit switch (14) installed on the hook opening guide plate (13).

In response to the signal from this limit switch (14), the tag line locking/release stopper (11) moves the tag line (
It rises through the ice splice (8) of 8). If the hook (1) is moved further forward in this state, the hook (
1) is the narrow part (1) of the hook opening guide plate (13).
5) and one end of the plate-like body of the hook (1) is pushed, so the gripping part of the hook (1) opens and the tag line (8) separates from the hook (1) under its own weight. The reason why the Metsenger rope (7) is attached to the link (6) of the hook (1) is that the tension acting on the Metsenger rope causes the tag line gripping part of the hook (1) to rotate in the closing direction as shown in Figure 4. This is because the generated force, combined with the rotational force of the coil spring (5), allows the eye splice (9) to be gripped more firmly.

〔Effect of the invention〕

Being able to control the posture of the tagline I-Splice,
Along with this, it has become possible to automate the work of retracting the tag line, such as automatically locking the tag line and automatically releasing the Messenger rope.

[Brief explanation of the drawing]

Figure tJIJ1 shows a hook for pulling in a tag line according to an embodiment of the present invention, in which (a) is a plan view thereof, and (b) is a side view thereof. Fig. 2 is a perspective view showing a method of grasping the eye splice of a tag line with a tag line retraction hook, Fig. 3 is a side view showing the tag line retraction method of the present invention, and Fig. 4 shows a tension FIG. 3 is a state diagram showing the rotational force and gripping force generated in the hook when the hook is operated. Fig. 5 is a side view of the tag line master, and Fig. 6 is a side view of the tag line hook. In Fig. 5.6, (a) shows the tag line retracted state, and (b) shows its locked state. ,(c)
7 shows the detached state, and FIG. 7 is a perspective view showing a conventional tag line retracting method. l... Hook for tag line retraction, 2... Plate-shaped body,
3... Hinge, 4... Hinge pin, 5... Coil spring, 6... Link, 7... Metsenger rope, 8... Tag line, 9... Eye splice of tag line, lO ... winch, 11... stopper,
12... Hook guide, 13... Hook opening guide plate, 14... Limit switch, 15... Narrow part of hook opening guide plate, 16... Bit for tag line locking/release, 17...Tag line locking 11
11il lecture hook.

Claims (1)

[Claims] [1] An openable and closable hook secured to the end of a rope,
How to grasp the eye splice of the tag line and pull in the tag line. [2] Two plate-like bodies each having a recess formed at one end in a direction perpendicular to the plate surface are stacked on top of each other so that the recesses form a substantially circular shape, and a hinge, a hinge pin, a coil spring is attached to the approximate longitudinal center of both plate-like bodies. A hook for retracting a tag line, which is rotatable and connected to the recess so that the recess can be closed, and the other ends of both plate-shaped bodies are connected by a link.