KR20020074971A - Rope tension device of winch - Google Patents

Abstract

PURPOSE: A rope tensioner of a winch is provided to prevent the early wear of a rope by guiding the rope to be neatly wound on a drum and to avoid an accident by excluding a worker for the winding of the rope. CONSTITUTION: A rope tensioner of a winch(1) comprises a tension plate(11) for elastically pressurizing on a rope wound on a drum(3), two air springs(15) for applying proper elasticity to the tension plate, an air tank for supplying air to the air springs, and an air control valve for controlling air supply to the air springs. When a rope is wound on the drum, the tension plate elastically pressurizes on the rope. Therefore, the rope is neatly wound on the drum without interwinding.

Description

Rope tension device of winch

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a winch installed in a vehicle and the like for salvaging and lifting a heavy object or another vehicle. More particularly, the cable is elastically arranged so that the rope can be neatly arranged on a drum when the winch is wound. It is about the rope tensioning device of the winch to support.

In general, winch is a device used to lift or pull heavy loads and is widely used in various industrial sites such as factories, construction sites, fishing boats, and vehicles. In particular, the winch in the tow vehicle is intended to lift the salvage or weight of other vehicles, and may be referred to as essential equipment of a vehicle that is put into an abnormally bad environment such as a rough ground, a dirt road, or a fire site.

Such a winch is, for example, disclosed in Korean Patent Application No. 92-17104, a drum in which a rope is wound, a motor for driving the drum forward or reverse, a speed reducer installed between the drum and the motor to increase torque through deceleration. And a brake that stops the rotation of the drum instantaneously so that the rope is no longer released or wound.

Accordingly, the drum is rotated in the unwinding direction by the motor to loosen the wound rope appropriately and bound to the object to be lifted or towed, and the motor is reversed in the winding direction to rewind the rope to the drum so that the heavy object can be easily lifted. do.

On the other hand, the rope is wound in a zigzag manner sequentially along the axial direction of the drum with a sufficient length necessary for lifting, but when the rope is wound because it does not have any other means for inducing the rope to be neatly wound Tangle has occurred frequently. This causes not only the premature wear of the rope, but also the induction of the rope so that the worker grabs the rope by hand and winds it from side to side. There was a problem of wasted work.

The present invention has been made in view of the above-mentioned conventional problems, and provides a winch rope tensioning device that can prevent premature wear of the rope by inducing the rope to be automatically wound on the drum when the rope is wound. There is a purpose.

It is another object of the present invention to provide a rope tensioning device for a winch that can fundamentally prevent the occurrence of a safety accident in which a worker's hand is wound on a rope by excluding a separate work force for winding up the alignment of the rope.

1 is an exploded perspective view showing a rope tensioning device of a winch according to the present invention;

Figure 2 is a partial cutaway side view showing the coupling state of Figure 1,

3 is a cross-sectional view taken along the line III-III of FIG.

<Explanation of symbols for the main parts of the drawings>

1: winch 2: (winch's) support frame

3: drum (winch's) 4: rope (winch's)

10: rope tensioning device 11: tension plate

12: push bar (on tension plate) 13: shaft

15: air spring 16: air tank

19: air control valve

The rope tensioning device of the winch according to the present invention for achieving the above objects, the drum wound rope, the drive means for rotating the drum forward or reverse, the reducer provided between the drive means and the drum and the support frame for supporting them A winch comprising: a tension plate hinged to a support frame and one end elastically pressing the rope; An air spring installed on the support frame and pushing the other end of the tension plate upward; An air tank for supplying air to the air spring; And an air regulating valve for controlling supply of air to the air spring.

Accordingly, in the present invention, the tension plate is elastically pressing the rope on the drum by the air spring when the rope is wound, so that the rope is automatically wound neatly on the drum, early wear of the rope due to entanglement and workers' hands It can effectively prevent the occurrence of safety accidents wound on the rope.

Such specific features and other advantages of the present invention will become more apparent from the following description of the preferred embodiments with reference to the accompanying drawings.

1 to 3, the winch 1 of the illustrated configuration is a power take-off device (PTO) in which a drum 3 on which a rope 4 is wound, for example, for a towing vehicle, draws out necessary power from the engine of the vehicle. Is connected to the drive through the reducer 5, and is mounted to the vehicle body S by a support frame 2 supporting them.

The rope tensioning device 10 of the winch according to the present invention is a tension plate 11 which elastically presses the rope 4 wound on the drum 3 of the winch 1, and is suitable for the tension plate 11. Two air springs 15 to impart elasticity, an air tank 16 for supplying air to the air springs 15, and an air regulating valve 19 for controlling supply of air to the air springs 15. .

The tension plate 11 is provided with a bracket 14 on one side of the support frame 2 and hinged rotatably by the shaft 13 to the bracket 14. At this time, the shaft 13 is positioned to be outward with respect to the drum 3 than to the middle of the tension plate 11. Accordingly, the tension plate 11 is always in contact with the rope 4 by its own weight, regardless of whether the air spring 15 is operated at the inner end of the tension plate 11. Preferably, a push bar 12 is installed in the axial direction of the drum 3 at the inner end of the tension plate 11 so as to evenly press the rows of the plurality of ropes 4. The push bar 12 is formed in a semi-circular shape as shown for smooth winding and unwinding of the rope 4 to be in line contact with the rope 4, so that damage to the rope 4 due to friction can be suppressed. It is made of soft material relative to the rope (4). In addition, two edges of the tension plate 11 are provided with reinforcing flanges 12a for preventing the deformation thereof.

The air springs 15 are installed on the bracket 14 at intervals to be positioned below the outer end of the tension plate 11, and selectively expand only when the rope 4 is wound to open the outer end of the tension plate 11. By pushing upward, the inner end of the tension plate 11 is pressed against the rope 4.

The air tank 16 is installed on one side of the vehicle body S, and is connected simultaneously with the two air springs 15 through an air hose 17 having the couplers 18.

And, the air control valve 19 is installed in the air hose 17 to open and close the air tank 16 by an external signal, it is supported on one side of the bracket (14).

Next, the operation of the rope tensioning device 10 of the winch according to the present invention configured as described above will be described.

First, when a vehicle engine is started and a PTO switch (not shown) is operated, power of the engine is transmitted to the winch 1 by the PTO. In this state, when the air regulating valve 19 is opened, air from the air tank 16 is injected into the two air springs 15 through the air hose 17. Then, the air springs 15 are expanded by the injected air to push the outer end of the tension plate 11 upward.

Accordingly, a rotational force is generated in the tension plate 11 in the counterclockwise direction about the shaft 13, so that the push bar 12 provided at the inner end thereof receives the rope 4 wound on the drum 3. Will be pressed.

Next, the winch 1 is operated in a state in which the tension plate 11 compresses the rope 4. Then, the rope 4 wound on the outer circumference of the drum 3 is guided to the drum 3 by the tension plate 11 and simultaneously guided to the drum 3 while moving accurately to the left and right without detachment during winding. It becomes.

Therefore, there is no need for a separate worker to clean up the rope as in the prior art, and there is no fear of a safety accident in which hands are wound on the rope.

As described above, according to the present invention, since the tension plate elastically presses the rope on the drum by the air spring when the rope is wound, the rope is automatically wound neatly on the drum. Accordingly, it is possible to effectively prevent the early wear of the rope due to the tangling of the rope, as well as the need for workers to clean the rope can be fundamentally prevented from the safety accident that hands are wound on the rope.

Therefore, the present invention can ensure the convenience and safety of the winch as well as has an excellent effect that contributes to reducing labor costs.

Claims (2)

A winch comprising a drum wound with a rope, drive means for rotating the drum forward or reverse, a reducer provided between the drive means and the drum, and a support frame for supporting the drum, A tension plate hinged to the support frame and one end elastically presses the rope; An air spring mounted to the support frame and pushing the other end of the tension plate upward; An air tank for supplying air to the air spring; And a control valve for controlling the supply of air to the air spring. The winch rope tensioning device according to claim 1, wherein a push bar is provided at one end of the tension plate to press the rope rows wound in the axial direction of the drum.