JPS6326394Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a rope manual pull-out device in a winch.

In a winch equipped with a winch drum that is driven in the rope winding direction, stopped, and driven in the rope payout direction by an actuator operated by a control device, the rope wound on the winch drum is pulled out, and the end of the rope is Conventionally, when carrying an attached hook to a location where there is an object to be towed, etc., one worker operates a control device to drive the winch drum in the rope payout direction, and another worker lifts the hook. is carried to a designated position. However, even with this method, two workers are required to carry the hook to the specified position.
In many cases, the amount of drive of the winch drum in the rope payout direction precedes the amount of drive of the winch drum, which causes slack in the rope, which causes the rope to wind irregularly around the winch drum.

The purpose of the present invention is to provide a new rope manual method for a winch drum that allows a single worker to carry the hook to a predetermined position and that does not require the winch drum to be driven in advance in the rope payout direction. It is intended to provide a drawer device.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an embodiment of the present invention will be described in

In FIG. 1, A is a winch, which is equipped with a hydraulic actuator 1 and a winch drum 2 which is interlocked and connected to the hydraulic actuator 1 and is driven in the rope winding direction, stopping, and rope payout direction. The hydraulic actuator 1 is composed of a hydraulic motor, and its two supply/discharge circuits 3 and 4 are connected to a hydraulic pump 6 and an oil tank 7 via a control device 5 composed of hydraulic switching valves in three positions in four directions. It is constructed so that it can be selectively connected to the oil passages 8 and 9 connected to each other. By operating the lever 10 to the right in the figure, the control device 5 drives the hydraulic actuator 1 to drive the winch drum 2 in the direction of letting out the rope 11 wound around it, and moves the lever 10 to the left in the figure. By operating the lever in the direction, the hydraulic actuator 1 is operated to drive the winch drum 2 in the direction of winding the rope 11, and by returning the lever 10 to the neutral position, the hydraulic actuator 1 is operated to stop the winch drum 2. It consists of Reference numeral 12 denotes an arm 14 whose base end is rotatably pivoted to a bracket 13 that rotatably supports the winch drum 2; A rope guide 15 consisting of a roller extending over the entire width of the drum 2 is provided. 1
6 is a stopper provided on the bracket 13, 17
is a spring disposed between the arm 12 and the bracket 13 at a proper position. The spring 17 is
This is for urging the arm 12 to return to a predetermined tilted position where it abuts against the stopper 16. The arrangement of the arm 12 is similar to that of the winch drum 2.
The wire rope 11 wound on the arm 12
Select and arrange the arm 12 at a position such that when it is pulled out after passing through the guide tool 15 at the tip, the arm 12 tilts from a predetermined tilting position against the spring 17 (tilts to the left in the figure) due to the tension of the rope 11. are doing. 18 is a lever extending downward from the base end of the arm 12, and the tip of this lever 18 is
It is connected via a link 19 to a lever 10 of the control device 5 . This related connection means that when the arm 12 is tilted from a predetermined tilting position (the position where it collides with the stopper 16) against the spring 17, the lever 10 of the control device 5 is tilted to the right in the figure (the lever 10 is The rightward tilting causes the control device 5 to function so that the winch drum 2 is driven by the hydraulic actuator 1 in the rope payout direction. The link 19 and the lever 10 are connected through a long hole 20 provided in the link 19.
This is done by engaging the pin 21 of the lever 10 to the link 19.
It is designed so that it can be tilted to the right in the figure without being obstructed. Also, in link 19,
The arm 12 moves from the predetermined tilting position to the spring 17.
When the lever 10 is tilted against this tilting motion, the minimum force required to tilt the lever 10 to the right in the figure is transmitted, but when more force is applied, the lever 10 will buckle. An adjustable spring 22 is interposed, which makes it possible to tilt the lever 10 to the left in the figure. 23 is a hook attached to the end of the rope 11. Reference numeral 24 denotes an accelerator lever connected to the accelerator of the hydraulic pump 6 driving engine (not shown) so as to increase the rotational speed of the hydraulic pump 6 driving engine (not shown) by tilting. When the arm 12 tilts from a predetermined tilting position against the spring 17, it is connected to the link 19 so as to be tilted in conjunction with this tilting.

Next, the action will be explained. When pulling out the rope 11 wound around the winch drum 2 and carrying the hook 23 to a predetermined position, first pull out the rope 11 wound around the winch drum 2.
The rope 11 pulled out from the lever is hung on a guide tool 15 at the tip of a lever 12, and the rope 11 is pulled out through the guide tool 12. Next, hold the hook 23 and carry it to a predetermined position. At this time, tension is generated in the rope 11, and this tension causes the arm 12 to tilt from a predetermined tilting position against the spring 17. Operate in the direction of feeding out. Therefore, the winch drum 2 automatically pays out the rope 11 as long as there is tension in the rope 11. When the worker stops pulling out the rope 11 and the tension on the rope 11 disappears, the drive of the winch drum 2 in the direction of feeding out the rope 11 is automatically stopped. Also, when the worker pulls the rope 11 strongly, the arm 12
The amount of tilting of the accelerator lever 2 increases.
4 is tilted, the rotation of the engine for driving the hydraulic pump increases, and the rope payout speed of the winch drum 2 increases. When the rope 11 is to be wound up by the winch drum 2, the control device 5 may be controlled by the lever 10 after the rope 11 is removed from the guide tool 15.

In the above embodiment, the spring 17 was used to urge the arm 12 to return to a predetermined tilted position, but instead of the spring 17, a weight was attached to the tip of the lever 18, and the arm 12 was moved by gravity. Of course, it is also possible to apply a force to return.

In any case, the rope manual pull-out device for a winch according to the present invention is a winch equipped with a winch drum that is driven in the rope winding direction, stopped, and driven in the rope payout direction by an actuator operated by a control device. An arm having a rope guide at its tip and pivotably supported at its base end is urged to return to a predetermined tilting position by a spring or gravity, and the arm tilts against the spring or gravity. The arm is connected to the control device so that the winch drum is driven in the rope payout direction, and when the arm pulls out the rope wound around the winch drum through a guide at the tip of the arm Since the structure is arranged near the path of the rope so that it tilts against the spring or gravity due to the tension of the rope, the rope can be pulled out by one worker despite its simple structure, and the rope can be pulled out without any tension on the rope. If not, the rope will automatically stop feeding out and no slack will occur in the rope, so it is possible to prevent the rope from being wound around the winch drum as much as possible.

[Brief explanation of the drawing]

FIG. 1 is an explanatory diagram of a manual rope pulling device in a winch drum according to the present invention. Control device; 5, actuator; 1, winch drum; 2, lobe; 11, guide; 15, arm; 12.

Claims (1)

[Scope of utility model registration request] A winch equipped with a winch drum that is driven in the rope winding direction, stopped, and driven in the rope payout direction by an actuator operated by a control device. The supported arm is urged by a spring or gravity to return to a predetermined tilted position, and the arm is configured to drive the winch drum in the rope payout direction when the arm is tilted against the spring or gravity. is connected to the control device, and the arm is configured to tilt against the spring or gravity due to the tension of the rope when the rope wound around the winch drum is pulled out through a guide at the tip of the arm. A rope manual pull-out device for a winch, characterized in that it is disposed near the path of the rope.