KR100378915B1 - Right and adverse direction winch for load object lifting - Google Patents

Abstract

According to the present invention, in a winch for winding, a double ratchet gear prevents reverse rotation by a stopper during forward rotation of the winch, and a double ratchet gear is applied even when a tension force is applied by a load body during reverse rotation by a user. Since the binding lever is released and does not transfer the tensile force of the load body to the rotary lever, the user can more easily lower the load body in reverse, and the position of the load body can be easily lifted up and down by the winch of the present invention. Of course, even when descending the load body is not descending rapidly, so that it is lowered in proportion to the rotational force of the user relates to a forward and backward winch for the load body lifting can be more safely up and down.

Description

Right and adverse direction winch for load object lifting}

According to the present invention, a winch for winding, in particular, in the case of raising and lowering a load body, does not loosen even when the user's force is removed by a stopper having a ratchet gear and a stopper, as well as sudden rotation even when the load body is lowered. It relates to a forward and backward winch for lifting the load body to prevent the rope and the band is slowly wound by the user's rotational force.

The winch can be rotated in one direction by mounting a stopper at a certain position of the ratchet gear to be rotated, but it cannot be rotated by the stopper in the reverse direction. When the stopper is removed, reverse rotation is possible. It is used to lift heavy objects or to tension ropes and bands.

These winches are used for tensioning the net in sporting events, etc., or when the item is firmly fixed, it forms a winch on the rope, so that only one direction rotation is possible and the reverse rotation is not possible. Tension is so tight that you can fix things with increased force.

Since the winch is mainly used for ropes and bands having a strong long tension, the ratchet gear can be reversed by moving the stopper, so that the long tension of the ropes and bands and the weight of the load body bound to the ropes and bands By influencing the rotational force of the ratchet gear at a time, the winding roller, which wraps the ratchet gear and the rope and the band, is released at high speed.

However, when the stopper is removed, the conventional winch rotates at a high speed while the stopper is rotated at a high speed, which may be harmful to people or objects around it. If it is necessary to lower the gears again, the ratchet gear rotation stops. It is impossible to stop the rotation of the ratchet gear. It is rotated at high speed while missing the damage, and the load is lowered at high speed and hits the floor or other structures and is damaged.The adjustment is very difficult and inconvenient and cannot be used as a mechanical winch. There is a problem.

The present invention has been made to eliminate the problems described above, while the reverse force does not occur by the stopper during the forward rotation of the winch by the double ratchet gear, while the tension force by the load body during the reverse rotation by the user arbitrarily Even if it acts, the double ratchet gear is engaged and released, and the rotating lever does not transfer the tensile force of the load body so that the user can easily lower the load body in reverse direction. The object of the present invention is to provide a stationary winch for lifting and lowering the load, which can be lifted up and down as well as being lowered in proportion to the rotational force of the user even when the load is lowered. It is.

1 is an exploded perspective view of the winch of the present invention

Figure 2 is a front cross-sectional view of the winch of the present invention

3 is a side explanatory diagram of the winch of the present invention;

4 is an operation diagram according to the rotational direction of the winch of the present invention,

Figure 4a is a position view of the ratchet gear in the forward rotation

4B is a position view of the ratchet gear in the reverse rotation.

5 is a state diagram used in the present invention winch

Explanation of symbols on the main parts of the drawings

1: main body 2: winding roller

4: drive gear 5: driven shaft

6: driven gear 10: drive shaft

11: 1st screw part 12: 2nd screw part

13 friction pad 14 first ratchet gear

15: friction pad 16: the second ratchet gear

17: spacer 18: fixing nut

19: spring 20: stopper

21: lever 22: rotary rod

23: stopper 30: guide rod

32: guider 33: spring

34: pinhole

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

1 is an exploded perspective view of the winch of the present invention, Figure 2 is a cross-sectional explanatory view showing the front state.

In the winch having the winding roller 2, the drive gear 4 by the drive shaft 10, and the driven gear 6 by the driven shaft 5 in the main body 1, the drive shaft 10 The first screw part 11 and the second screw part 12 are formed on one side, and the fixing ring 24 is attached to the first screw part 11, and the friction pad 13 and the second ratchet gear 16 are connected thereto. The friction pad 15 and the first ratchet gear 14 are sequentially inserted, and the spacer 17 and the fixing nut 18 are screwed into the second screw portion 12, and the spring is formed on the second ratchet gear 16. 19 is brought into contact with the coal stopper 20, and the first ratchet gear 14 is coupled to another stopper 23 by the rotary rod 22 to which the lever 21 is attached.

At this time, the guide rod 30 is formed on one side of the lower side of the stopper 20, and a guider 32 is formed on one side of the main body 1 so that the guide rod 30 is elevated by the guider 32. Resilient locking by the spring 19 provided on the guide rod (30).

In addition, the rotating rod 22 to which the lever 21 is attached has a spring 33 on the lever 21 side to maintain the rotating direction of the rotating rod 22 in a constant direction.

Meanwhile, a pinhole 34 is formed in the drive shaft 10 so as to couple and fix the fixing ring 24 to the drive shaft 10, and a pin groove 35 is formed on one side of the fixing ring 24 to be separately provided. The fixing pin 36 is inserted into the pin groove and the pin hole so that the fixing ring 24 is coupled to the drive shaft 10.

Subsequently, the fixing nut 18 prevents the fixing nut 18 from being loosened by forming the pin hole 37 in the second screw part 12 and inserting the stop pin 38 therein.

In the drawings, reference numeral 40 denotes a band, 41 a rotary knob, and 42 a cover.

The operation of the winch of the present invention having the above configuration will be described in more detail with reference to the accompanying drawings.

As shown in Figure 2, the forward and reverse winch of the present invention can be forced stop by the stopper in one direction or in the reverse direction, it is possible to prevent rapid loosening during the reverse rotation and to raise and lower the load more safely.

First, as shown in FIG. 4A, when the rotation knob 41 is inserted into the outer circumferential surface of the first ratchet gear 14 and rotates forward, the first ratchet gear 14 is formed on the first axis of the drive shaft 10. Advance along the threaded portion 11 and no longer advance by the fixing ring 24, the friction pads 13, 15 and the second ratchet gear 16 fixed to the drive shaft 10, the rotational force of the drive shaft 10, the drive shaft 10 acts as a force for rotating the take-up roller 2 through the drive gear 4 and the driven gear (6).

At this time, the take-up roller (2) is connected to the load body is lifted by the band 40, the tension force of the load body through the band 40 is applied to the opposite force to generate a rotation handle ( 41) to rotate in the opposite direction of rotation.

Therefore, when the user misses the rotary knob 40, the stopper 20 is rotated forward and backward as shown in FIG. 3. That is, when the stopper 20 is rotated forward, the spring 19 It is coalesced by) to slide with the second ratchet gear 16, and the reverse rotation is impossible by the second ratchet gear 16 and the stopper 20 during the reverse rotation.

Therefore, since the winding roller 2 cannot be reversely rotated, only the forward rotation of the winding roller is possible by the user's force, and thus the band 40 is smoothly wound in one direction, and the load body can also be easily lifted. It is.

On the other hand, if the user needs to lower the load again, the take-up roller 2 should be released again. That is, since there is no stopper in the related art, the user endures with the force and rotates the rotary knob slowly or at all. Since the use of the method of releasing the handle at high speed, the risk of injury was accompanied by the damage of the load body as well as the rotating handle rotating at a high speed. When the reverse rotation of (2), the stopper operates automatically, so that no sudden rotation occurs and the user and the load body are also safe.

Looking at the reverse rotation action of the forward and reverse winch of the present invention,

As shown in FIG. 4B, when the rotary knob 41 is reversely rotated to reversely rotate the take-up roller 2, the second ratchet gear 16 cannot be reversely rotated by the stopper 20. As a result, only the first ratchet gear 14 is reversely rotated so as to retreat along the first screw portion 11.

At this time, the gap between the friction pad 13, 15 and the second ratchet gear 16 is generated by the retracted distance of the first ratchet gear 14. The ratchet gear 16 is in a state where idle rotation is possible. This is possible because the friction pads 13 and 15 and the second ratchet gear 16 are not in a screwed state.

Therefore, since the friction pads 13 and 15 and the second ratchet gear 16 are capable of idling, it means that the drive shaft 10 can be arbitrarily rotated. (10) will reverse itself.

However, since the rotational speeds of the drive shaft 10 and the rotation knob 41 which are reversely rotated do not coincide, and the rotation speed of the drive shaft 10 is fast, the rapid rotation of the drive shaft 10 eventually advances the rotation knob 41. To act.

That is, the rotation knob 41 is in reverse rotation, but since the drive shaft 10 is rotated in reverse at a faster speed, the rotation knob 41 is rotated forward by the difference in the speed.

Therefore, as the rotation speed of the drive shaft 10 is faster and the speed difference with the rotation knob 41 is larger, the forward speed of the rotation knob 41 is faster, and as a result, the rotation knob 41 is moved forward again. Pressing the friction pads 13 and 15 and the second ratchet gear 16 not only makes the second ratchet gear 16 unable to idle but also prevents reverse rotation by the stopper 20. It becomes a state.

Therefore, when the rotation knob 41 is rotated in reverse, the friction pads 13 and 15 on which the second ratchet gear 16 is fixed are loosened, so that the second ratchet gear 16 can idle. The drive shaft 10 is rapidly reversed by the weight of the load body. In addition, the reverse rotation again acts to rotate the rotation knob 41 forward to the friction pads 13 and 15. The second ratchet gear 16 is in close contact with each other so as not to idle, and thus, the driving shaft 10 may not be reversed any more due to the support force of the stopper 20.

Therefore, even in the case of reverse rotation, since the winding roller 2 is reversely rotated only by the reverse rotation amount of the rotation knob 41, the reverse rotation amount of the winding roller 2 is determined in proportion to the reverse rotation amount of the user. The stopper automatically operates just by retracting the rotary knob 41 from the drive shaft 10 and prevents over-rotation, so that the reverse rotational speed of the take-up roller 2 can be arbitrarily adjusted at a desired position. It is also possible to stop the load.

On the other hand, when the load body is to be raised again in the above state, the rotation knob 41 is rotated forward again, and the rotational force is transmitted through the friction pads 13 and 15 and the second ratchet gear 16 to the driving shaft. The drive shaft 10 in a state in which reverse rotation is impossible by the stopper 20 may be rotated in the direction to rotate the take-up roller 2.

Here, the stopper 23 which prevents the reverse rotation of the first ratchet gear 14 when the forward rotation is rotated forward the winding roller (2) using the rotation knob 41, and then rotates the rotary knob 41 If the first ratchet gear 14 is reversely rotated even in a removed state, the first ratchet gear 14 is inserted into the first screw portion 11 of the drive shaft 10 at the same time as the drive shaft 10 is reversely rotated. Is rotated at the same time without any resistance, so that a rapid reverse rotation is always used for the purpose of preventing the reverse rotation of the first ratchet gear 14, the first ratchet to reverse the winding roller (2) When the gear 14 is reversely rotated, the lever 21 formed on the rotating rod 22 is rotated so that the first ratchet gear 14 can be reversely rotated. To operate the stopper (23), even if the rotary knob (41) is removed This will not occur.

In addition, the fixed ring 24 is fixed to be rotated together with the drive shaft 10, the fixing method is a pin hole 34 formed on the drive shaft 10, and a pin groove formed on one side of the fixing ring 24 When the fixing pin 36 is inserted so as to span 35, the fixing ring 24 also rotates together with the rotation of the drive shaft 10.

In addition, the fixing nut 18 fixed to the end of the second screw portion 12 by the stop pin 38 loosens the fixing nut 18 when the first ratchet gear 14 rotates in reverse, so that the first ratchet gear ( 14 prevents the drive shaft 10 from being separated from the drive shaft 10, and the spacer 17 inserted into the spaced apart space thereof adjusts the amount of reverse rotation of the first ratchet gear 14 which is reversely rotated by decreasing the thickness thereof. It is possible to smoothly loosen the reverse rotation, as well as to control the reverse rotation without difficulty.

5 is a state diagram in which the stationary winch of the present invention is applied to a telescopic mast, and the telescopic mast can be deployed or folded by raising or lowering a plurality of masts by the forward and reverse rotation of the winch.

As described above, the forward and reverse winch for lifting and lowering the load body of the present invention prevents reverse rotation by the stopper during the forward rotation by the double ratchet gear, and the double ratchet gear even when the tension force is applied by the load body during the reverse rotation by the user. Is bound and released, and the rotating lever does not transfer the tensile force of the load body, so that the user can more easily lower the load body in reverse, and the position of the load body can be easily raised and lowered by the winch of the present invention. Of course, even when descending the load body is not descended rapidly in proportion to the user's rotational force is to be lowered in order to have a safer up and down effect.

Claims (5)

In a conventional winch having a winding roller 2, a drive gear 4 by the drive shaft 10, and a driven gear 6 by the driven shaft 5 in the main body 1; The first screw portion 11 and the second screw portion 12 are formed on one side of the drive shaft 10, and the fixing ring 24 is attached to the first screw portion 11, thereby the friction pad 13 and the first The ratchet gear 16, the friction pad 15, and the first ratchet gear 14 are sequentially inserted, and the spacer 17 and the fixing nut 18 are screwed into the second screw part 12, wherein The ratchet gear 16 is brought into contact with the stopper 20 in which the spring 19 is installed, and the first ratchet gear 14 is connected to another stopper 23 by a rotary rod 22 having a lever 21 attached thereto. A forward winch for lifting a load body, characterized in that the coupling is formed so as to abut. According to claim 1, the stopper 20 forms a guide rod 30 on one side of the lower side, guider 30 is formed on one side of the main body 1, so that the guide rod 30 is elevated by the guider 32 It is, but the forward and reverse winch for the load body, characterized in that the elastic stop by the spring (19). 2. The forward and lowering winch of claim 1, wherein the rotating rod 22 forms a spring 33 on the lever 21 side so that the rotating direction of the rotating rod 22 is directed in a constant direction. . According to claim 1, wherein the fixing ring 24 is fixed to the drive shaft 10, the pin hole 34 is formed in the drive shaft 10, and the pin groove 35 is formed on one side of the fixed ring 24, Lifting forward and reverse winch for the load body, characterized in that the fixing ring 24 is coupled by the insertion of the fixing pin (36). The method of claim 1, wherein the fixing nut 18 is formed by pin hole 37 in the second screw portion 12 to insert the stop pin 38 to prevent loosening of the fixing nut 18, characterized in that Forward winch for lifting loads.