JPS636146Y2 - - Google Patents

Description

[Detailed description of the invention] This invention is based on the nets used in golf driving ranges, batting practice ranges, etc., or the membranes used in large cultivation tents (hereinafter collectively referred to as membrane-like materials). .) Concerning winches for raising and lowering.

For example, membrane-like materials on golf practice ranges are damaged by collisions with golf balls, so they must be lifted and lowered periodically to repair them, and winches are used at this time. FIG. 1 shows a state in which a membrane-like material A is lifted by a conventional winch B, and in the same figure, C indicates a suspension column, D indicates a roller, and E indicates a rope.

By the way, the conventional winch B pulls up the film-like material A by winding the rope E, which has one end connected to the film-like material A, around the winding drum, and conversely pulls up the film-like material A by letting the rope E out from the winding drum. It is starting to be lowered. However, since the film-like material A is lightweight and has a large area, it was not expected that it would naturally come down under its own weight when it was taken down, but instead it would be blown by the wind, making it difficult to take it down. For this reason, in reality, in addition to letting out the rope E from the winding drum, several people were forced to pull down the film-like material A.

Therefore, an object of the present invention is to provide a winch that can easily and reliably lower a film-like material.

That is, in the present invention, a rope insertion portion is formed at the end of the winding drum, and a rope winding body is provided inside the winding drum and is arbitrarily connected and fixed via a fixing mechanism, and the rope winding body is connected to a membrane-like object. The lowering rope passing through the rope insertion portion can be manually wound onto the rope winding body.

With this feature, the lower end of the pulling rope is wound around the rope winding body, the pulling rope is held in a tensioned state, and when the winding drum is rotated in reverse, the pulling rope is paid out and By winding the pulling rope around the winding drum, a pulling force can be applied to the film-like material. Therefore, the film-like material can be easily and reliably pulled down without requiring a worker to pull the film-like material down.

Hereinafter, one embodiment of the present invention will be described with reference to FIGS. 2 to 5.

In Fig. 2, 1 is a suspension column with a roller 2 attached to its upper end, 3 is a film-like material such as a net, 4 is a lifting rope connected at one end to the film-like material 3, and 5 is a rope for lifting the film-like material 3. A lowering rope 6 connected directly to the upper edge of the rope 4 or indirectly through the one end of the rope 4 is a lowering rope 6 for raising and lowering the membrane-like material 1 through each of the ropes 4 and 5. This is such a winch.

The specific structure of this winch 6 is shown in detail in FIG. That is, 7 is a base, and left and right frames 8 and 9 are erected on the upper surface of this base.
A winding drum 10 is disposed between these frames 8 and 9, and winding drum shafts 11 and 12 protrude from the winding drum 10.
are the bearings 13, which are separately attached to the frames 8 and 9,
14 and are respectively supported through the shaft. In addition, the winding drum shaft 1
1 and 12 may be formed from both ends of a single shaft passing through the winding drum 10. A winding groove 1 is provided on the outer peripheral surface of the winding drum 10.
5 is formed in a spiral shape, and the winding drum shaft 1
A rope insertion portion 16 is formed at the end of the winding drum on the first side. In this embodiment, the insertion portion 16 is a plurality of holes drilled over one turn of the winding groove 15, but it may also be formed by a notched groove, or the number of holes may be changed. There is no problem as long as there is at least one. The winding drum 1 is attached to the winding drum shaft 12.
A drive device 17 is connected to the drive unit 17 for rotating the drive unit 0 in forward and reverse directions. The drive device 17 includes a motor disposed on the base 7, for example, a geared motor 18 with a brake,
It is formed from a gear transmission mechanism 20 that connects the rotating shaft 19 of this motor 18 and the winding drum shaft 12.
Further, a rope winding body 21 is fitted onto the winding drum shaft 11 so as to be movable and rotatable along the axial direction of the winding drum shaft 11 . The rope winding body 21 is formed, for example, in the shape of a pulley, with a rope locking portion 22 provided on the inside thereof, and teeth portions 23 carved on the outer peripheral surface. A hand gear 25 that is inserted and removed through a through hole 24 provided in the frame 8 is engaged with the toothed portion 23, and the engagement causes the rope winding body 2 to be rotated.
1 is adapted to be rotated around a winding drum shaft 12. The hand gear 25 is supported at the tip of the handle 26. Note that the frame 8 is provided with an opening (not shown) large enough to insert a hand, and is formed so that the pulling rope 5 can be engaged and detached from the rope locking portion 22 through this opening. There is. Further, a frame 8 is provided around the winding drum shaft 11.
is operated from the outside of the rope winding body 2.
A fixing mechanism 27 is provided that moves the winding drum 1 in the axial direction and connects and fixes the winding drum 10 to the winding drum 10. The fixing mechanism 27 of this embodiment is formed by a lock nut 28, a push plate 29, a push rod 30, a press plate 31, and a lining plate 32. That is, a plurality of push rods 30 are used and are provided to penetrate the inner race 13a of the bearing 13, and a ring-shaped push plate 29 and a press plate 31 are fitted to the winding drum shaft 11 so as to sandwich these push rods 30. There is. The push rod 30 and the pressure contact plate 31 are fixed, and the pressure contact plate 31 is equipped with a lining plate 32 that comes into contact with and separates from the rope winding body 21. The lock nut 28 is screwed onto the threaded portion of the winding drum shaft 11, and is configured to push the push rod 30 toward the rope winding body 21 via the push plate 29. Note that 33, which is placed horizontally between the frames 8 and 9, is a guide.

When pulling up the film-like material 3 using the winch having the above structure, it may be carried out in the same manner as in the conventional method. That is, after the other end of the pulling rope 4, which has one end connected to the membrane material 3 and has passed through the roller 2, is locked to the end of the winding drum 10 on the winding drum shaft 12 side, the drive device 17 is operated. The film-like material 3 can be pulled up by rotating the winding drum 10 in the forward direction and winding it around the winding drum 10 as shown in FIG.

Next, when lowering the film-like material 3 for repairs or the like, first use the pulling rope 5 that has one end connected to the upper edge of the film-like material 3 in advance during the above-mentioned pulling up, or The lower end of the pulling rope 5, one end of which is newly connected to the upper edge of the membrane material 3, is fixed to the winding drum 10. The rope 5 is fixed to the winding drum 10 in the following manner. That is, the lower end of the lowering rope 5 is passed through the rope insertion part 16, and the hand is inserted through the opening of the frame 8 to lock the rope 5 to the rope locking part 22. Then, the hand gear 25 is inserted through the through hole 24 and meshed with the teeth 23 to rotate the rope winding body 21. As a result, the surplus of the pulling rope 5 is wound around the rope winding body 21, and both the rope 5 and the pulling rope 4 are brought into tension. In this state, tighten the lock nut 28. Then, since the push plate 29 presses and moves the push rod 30, the lining plate 32 presses and moves the rope winding body 21 via the pressure contact plate 31, and this winding body 21 is moved between the winding drum 10 and the lining plate 32. It is clamped and fixed between. This completes the fixing of the lowering rope 5 to the winding drum 10 (see FIG. 2). Thereafter, the drive device 17 may be operated to rotate the winding drum 10 in the reverse direction. Then, as shown in FIG. 4, the pulling rope 4 wound around the winding drum 10 is paid out, and at the same time, the pulling rope 5 is wound around the winding drum 10. Therefore, since the film-like material 3 is forcibly pulled down by this, the film-like material 3 can be lowered while being prevented from being fanned by the wind. In addition, in this embodiment, the winding groove 15 is formed in the winding drum 10 so that the ropes 4 and 5 are wound in alignment, so that the amount of payout to the winding drum 10 and the amount of winding are always the same. Therefore, the pulling force does not disappear during the process.

Although the above-mentioned embodiment is constructed as described above, it may be constructed as shown in FIGS. 6 and 7 in order to omit the winding groove of the winding drum 10 and reduce manufacturing costs. That is, a pair of front and rear guide shafts 34, 35 are horizontally suspended between the left and right frames 8, 9, and feed screw rods 36, 37 are horizontally suspended parallel to these, respectively. The feed screw rods 26 and 37 are each rotatably supported, and a gear 38 attached to the end on the frame 9 side is
Each gear meshes with the final gear of the gear mechanism 20 directly or indirectly via an intermediate gear. In this case, the gear ratio is such that the amount of movement of the rope guide per one rotation of the feed screw rods 36, 37 is
The length is set to be the same as or more than one pitch when the ropes 4 and 5 are tightly wound around the rope.
A pulling rope 4 is attached to one threaded rod 36.
At the same time, this guide 39 is slidably fitted onto the guide shaft 34 to prevent it from rotating. Further, a rope guide 40 of the lowering rope 5 is screwed onto the other threaded rod 37, and this guide 40 is slidably fitted onto the guide shaft 35 to prevent it from rotating. According to this structure, even if the winding groove is omitted, the ropes 4 and 5 can be wound in alignment.

Further, in the above embodiment, the hand gear 25 for rotating the rope winding body 21 can be inserted into and removed from the frame 8, but the hand gear 25 can be freely rotated in the frame 8 and can be rotated from the outside of the frame 8. The gear 25 and the toothed portion 22 may be supported at all times through an intermediate gear mechanism. Further, the lining plate 32 may be attached to the rope winding body 21 or the winding drum 10, and the lining plate 32 and the pressure contact plate 31 may be omitted if necessary.

In addition, when implementing the present invention, unless it is contrary to the gist of the invention, specific details such as the frame, winding drum, winding drum shaft, drive device, rope insertion part, rope winding body, rope locking part, fixing mechanism, etc. Of course, the structure, shape, position, etc. of the present invention are not limited to the one embodiment described above, and can be configured and implemented in various ways.

Since the present invention described above has the configuration described in the above-mentioned utility model registration claim, when the winding drum is rotated in reverse, the pulling rope is fed out and at the same time, the pulling rope is wound around the winding drum to form a membrane. The practical effect is great because the object can be pulled down and the film-like object can be easily and reliably lowered without being blown away by the wind.

[Brief explanation of the drawing]

FIG. 1 is a diagram showing a state in which a conventional winch has completed pulling up a film-like material. Figures 2 to 5 show one embodiment of the present invention, Figure 2 is a diagram showing a state in which preparations are completed for lowering the membrane-like material, and Figures 3 and 4 are for explaining different operations. FIG. 5 is a cross-sectional side view of a part of a winch according to an embodiment. FIG. 6 is a plan view showing another embodiment of the rope aligned winding structure, and FIG. 7 is a sectional view of the aligned rope winding structure taken along the line -- in FIG. 3... Film-like material, 4... Pulling rope, 5...
Lowering rope, 8, 9... Frame, 10...
Winding drum, 11, 12... Winding barrel shaft, 16... Rope insertion part, 17... Drive device, 21... Rope winding body, 22... Rope locking part, 23... Teeth part, 25
...Hand gear, 27...Fixing mechanism.

Claims (1)

[Scope of utility model registration request] A rope insertion portion is formed at the end of the winding drum that is rotated forward and backward by a drive device on the side opposite to the drive device, and a rope is inserted into the winding drum shaft protruding from the opposite end of the winding drum. The winding body is fitted so as to be movable and rotatable along the axial direction of the winding drum shaft,
This rope winding body has a rope locking part and can be manually wound from outside of the frame which pivotally supports the winding drum shaft, and is operated from the outside of the frame around the winding drum shaft. A winch comprising a fixing mechanism that moves the rope winding body in the axial direction and connects and fixes the rope winding body to the winding drum.