JP2593811B2 - Wire rope winding drum - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wire rope winding drum used for a multi-story parking device or the like.

[0002]

2. Description of the Related Art Conventionally, for example, in a multi-story parking device, a wire rope winding drum is used to wind a wire rope for suspending a pallet on which an automobile is mounted. By the way, since a multi-story parking device is required to be able to park a plurality of vehicles by effectively using a narrow space, it is necessary to reduce the size of a wire rope winding drum used for this. However, in the conventional wire rope winding drum, since the wire rope is wound single along the wire rope winding groove formed spirally on the outer peripheral surface of the drum body, the shape is reduced in size. In addition, in order to accurately wind the wire rope along the wire rope winding groove, it is necessary to provide an expensive and complicated wire rope guide mechanism.

[0003]

SUMMARY OF THE INVENTION The present invention enables accurate winding of a wire rope around a drum body without providing a wire rope guide mechanism having a complicated structure. It is an object of the present invention to provide a wire rope winding drum having a reduced size by allowing multiple windings of a wire rope on a surface.

[0004]

According to a first aspect of the present invention, there is provided a wire rope winding drum in which two wire ropes are wound symmetrically around a drum body. A spiral wire rope winding groove is formed on the outer peripheral surface, and a guide piece for deflecting the winding direction of the wire rope to be wound is formed on a flange of the drum body where the winding direction of the wire rope is deflected. The gist is that you have done it.

According to a second aspect of the present invention, in the wire rope winding drum according to the first aspect, a bolt inserted through a through hole provided in one of the side plates is inserted into an end portion of the wire rope inserted through an opening of the drum body. The gist of the present invention is that the wire rope is held by the drum body by being inserted into the thimble formed in the above and screwed into a screw hole provided in the other side plate.

Further, the third invention provides the wire rope winding drum according to the first invention or the second invention, in which the wire rope is wound from one side plate to the other side plate in the drum trunk near the opening of the drum trunk. The gist of the invention is that a rod is provided to support a wire rope inserted through the opening of the drum body.

[0007]

According to the wire rope winding drum of the present invention, the winding direction of the wire rope to be wound is adjusted to a desired direction by a guide piece formed on a flange of the drum body at a position where the winding direction of the wire rope is deflected. By deflecting the wire rope, the wire rope can be accurately wound in the wire rope winding groove formed spirally on the outer peripheral surface of the drum body, and the wire rope is wound multiple times on the outer peripheral surface of the drum body. It is something that can be taken. In this case, when the winding direction of the wire rope is deflected by the guide piece, the pressing force by the wire rope acts on the flange via the guide piece, but the drum body of the wire rope winding drum is acted on. Since the two wire ropes are wound symmetrically, the pressing force of the two wire ropes is offset, and the wire rope winding drum does not tilt due to the pressing force of the wire ropes. The wire rope can be accurately wound.

[0008] Further, by holding the wire rope on the drum body by inserting the wire rope through a through hole provided in one side plate and screwing it into a screw hole provided in the other side plate,
Maintenance and replacement of the wire rope can be performed only by loosening the bolt using a spanner.

In addition, a wire rope inserted through the opening of the drum body is supported by a rod extending from one side plate to the other side plate in the drum body near the opening of the drum body. The wire rope can be wound around the outer peripheral surface of the drum body without damaging the wire rope at the edge of the opening of the body.

[0010]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a wire rope winding drum according to the present invention. The wire rope winding drum 1 is configured such that two wire ropes 3 can be wound symmetrically and doubly on the outer peripheral surface of the drum body 2 from the inside thereof. Have outer flanges 4a and 4b at their outer edges and a central flange 4 at the center.
Then, two wire rope winding grooves 5a and 5b are spirally formed on the outer peripheral surface.

The depth H1 of the wire rope winding grooves 5a and 5b is set to a diameter D of the wire rope 3 so that the wire rope 3 can be accurately wound around the wire rope winding grooves 5a and 5b. 50% or more, preferably 55%
It is desirable to set to about.

The height H2 of the outer flanges 4a and 4b and the center flange 4c is set to be equal to the height of the wire rope 3 in the present embodiment in which the wire rope 3 is double wound around the outer peripheral surface of the drum body 2. It is desirable to set the diameter to about 200% of the diameter D.

The starting ends 5a ', 5a' of the wire rope winding grooves 5a, 5b are located in the opening 2a on the side of the center flange 4c through which the wire rope 3 held in the drum body 2 is inserted.
5b 'is formed so that the depth of the groove is gradually increased and a gentle curved surface is formed so as not to damage the wire rope 3 at the edge of the opening 2a of the drum body 2.

The ends 5a ", 5b" of the wire rope winding grooves 5a, 5b on the outer flange 4a, 4b side are
The groove is formed so that the depth of the groove is gradually reduced so that the wire rope 3 can be smoothly wound twice.

Outer flanges 4 at positions L1 and L2 where the winding direction of wire rope 3 is deflected in drum body 2
Guide pieces 6 for deflecting the winding direction of the wire rope 3 to be wound on the center flange 4c and the center flange 4c.
a, 6b, 6c, 6d, 6e, 6f are formed.

Of these guide pieces, the central flange 4c
The guide pieces 6e and 6f formed on the wire ropes 5a and 5b are wound from the starting ends 5a 'and 5b' of the wire rope winding grooves 5a and 5b. The wire rope 3 is deflected toward the outer flanges 4a and 4b, so that the wire rope 3 can be accurately wound into the wire rope winding grooves 5a and 5b whose winding direction is deflected at the position L1. Things.

On the other hand, the guide pieces 6a and 6b formed on the outer flanges 4a and 4b adjust the winding direction of the wire rope 3 wound around the outermost wire rope winding grooves 5a and 5b from the outside to the outside flanges 4a and 4b. , So that the winding direction is deflected at the position L1 while preventing the wire rope 3 from being damaged by the edges of the outer flanges 4a and 4b.
This enables the wire rope 3 to be accurately wound around a and 5b.

The guide pieces 6c, 6d formed on the outer flanges 4a, 4b are wound around the wire rope winding grooves 5a, 5b on the outermost circumference, and are wound around the drum body 2 around the drum body 2. The take-up direction is deflected toward the inside, that is, toward the center flange 4c side, so that the wire rope 3 can be smoothly and accurately double-wound from the position L2.

In this embodiment, the guide piece 6
a, 6b, 6c, 6d, 6e, and 6f are formed by forming a metal piece having an upper surface formed into a gentle slope or a curved surface with an outer flange 4a,
It is fixed by welding to 4b or the center flange 4c, but it is not limited to this, and it can also be formed by fixing a metal piece using another fixing device such as a bolt, or by integrally molding. The guide piece 6a and the guide piece 6
c, the guide piece 6b and the guide piece 6d can use a metal piece that is integrally formed in advance.

As a result, the wire rope 3 led out of the opening 2a of the drum body 2 is wound around the starting ends 5a 'and 5b' of the wire rope winding grooves 5a and 5b, and the wire rope 3 is rotated around the drum body 2 once. After that, the winding direction is changed to the outside, that is, by the guide pieces 6e and 6f formed on the central flange 4c.
The wire rope winding groove 5 is deflected toward the outer flanges 4a and 4b and the winding direction is deflected at the position L1.
a, 5b.

After the second round, the winding direction of the wire rope 3 is deflected by the previously wound wire rope 3 toward the outside, that is, toward the outer flanges 4a and 4b. Is accurately wound in the wire rope winding grooves 5a and 5b where the light is deflected.

Outermost wire rope winding grooves 5a, 5b
The wire rope 3 which has reached is wound by the guide pieces 6a, 6b formed on the outer flanges 4a, 4b so that the winding direction is deflected from the outside in parallel with the outer flanges 4a, 4b,
While the wire rope 3 is not damaged by the edges of the outer flanges 4a and 4b, the wire rope 3 is accurately wound in the wire rope winding grooves 5a and 5b whose winding direction is deflected at the position L1.

The outermost wire rope winding grooves 5a, 5b
Is wound around the outer flanges 4a, 4b
The winding direction is deflected toward the center, that is, toward the center flange 4c, by the guide pieces 6c, 6d formed at the end of the wire rope winding grooves 5a, 5b.
The groove 5b ″ is gradually and shallowly formed, and is smoothly and accurately double-wound from the position L2.

Incidentally, the guide pieces 6a, 6b, 6c, 6
When the winding direction of the wire rope 3 is deflected by d, 6e, 6f, guide pieces 6a, 6b, 6c, 6d, 6 are provided on the outer flanges 4a, 4b or the center flange 4c.
Although the pressing force of the wire rope 3 acts via e and 6f, the two wire ropes 3 are wound symmetrically on the drum body 2 of the wire rope winding drum 1. The pressing force of the two wire ropes 3 is offset, and the wire rope winding drum 1 does not tilt due to the pressing force of the wire rope 3, and the wire rope 3 can be accurately wound on the drum body 2. .

The drum body 2 is provided with side plates 7a and 7b integrally therewith, and at the center thereof is formed a boss 7c for inserting a rotary drive shaft such as an electric motor. A keyway 7d is formed in the boss 7c.

The wire rope 3 is held on the drum body 2 by inserting a bolt 8a inserted through a through hole 8b provided in one side plate 7a into an end of the wire rope 3 inserted through the opening 2a of the drum body 2. And is screwed into a screw hole 8c provided in the other side plate 7b.

The wire rope 3 is held at the edge of the opening 2a through which the wire rope 3 held in the drum body 2 is inserted.
A rod 9 is provided in the drum body 2 in the vicinity of the opening 2a so as to bridge from one side plate 7a to the other side plate 7b so as not to damage the opening 2a. The wire rope 3 is guided to the starting ends 5a 'and 5b' of the wire rope winding grooves 5a and 5b in a state where the wire rope 3 is supported.

The wire rope winding drum 1 of the present embodiment is configured so that the wire rope 3 can be wound twice on the outer peripheral surface of the drum body 2, but the outer flanges 4a, 4b. And the height of the central flange 4c is increased, and the central flange 4c is
Forming guide pieces such as guide pieces 6c and 6d formed on a and 4b, that is, guide pieces that deflect the winding direction of the wire rope 3 to be wound toward the outside, that is, toward the outer flanges 4a and 4b. By the drum trunk 2
The wire rope 3 can be wound three times or more around the outer peripheral surface of the wire rope. Further, the wire rope winding drum 1 of the present embodiment winds two wire ropes 3 symmetrically around the outer peripheral surface of the drum body 2 from the inside thereof. It can also be configured to be symmetrically wound.

Next, an example in which the wire rope winding drum 1 is applied to a multi-story parking device 10 is shown in FIG.

The multi-story parking device 10 is a pallet on which a car suspended on the wire rope 3 is mounted by winding two wire ropes 3 by a wire rope winding drum 1 installed on a support 11. 12 can be moved up and down.

An electric motor 13 for driving the wire rope winding drum 1 is provided together with the wire rope winding drum 1 on the upper portion of the support 11, and the wire rope winding drum 1 is covered with a cover 14.

Each of the two wire ropes 3 led out of the wire rope winding drum 1 is wound around a sheave 15 provided on a pallet 12 and then wound on the wire rope 3.
The thimble 3a formed at the end of the support 11 is held by the fixing plate 16 formed at the upper part of the column 11.

In addition, the multi-story parking device 10 includes a control panel 17, a maximum limit switch 18a, an upper limit switch 18b, a reverse rotation prevention limit switch 18c, and a lower limit switch 18d. A switch group, a photoelectric tube 19 and a control panel 20 are provided.

[0034]

According to the wire rope winding drum of the first invention, the winding of the wire rope to be wound by the guide piece formed on the flange of the drum body at the position where the winding direction of the wire rope is deflected. By deflecting the direction to a desired direction, the wire rope can be accurately wound around the wire rope winding groove spirally formed on the outer peripheral surface of the drum body, and the wire is wound on the outer peripheral surface of the drum body. You can wind multiple ropes. For this reason, the shape of the wire rope winding drum can be reduced.

According to the wire rope winding drum of the second aspect of the present invention, maintenance and replacement of the wire rope are inserted through the through holes provided in one side plate and screwed into the screw holes provided in the other side plate. This can be easily performed simply by loosening the bolts using a spanner, and the durability of the wire rope winding drum itself can be improved.

According to the wire rope winding drum of the third aspect of the present invention, the wire rope can be wound around the outer peripheral surface of the drum body without damaging the wire rope at the edge of the opening of the drum body. The durability of the wire rope can be improved.

[Brief description of the drawings]

FIG. 1 is a diagram showing a wire rope winding drum of the present invention.

FIG. 2 is a sectional view taken along line AA of FIG.

FIG. 3 is a development view of a drum trunk of the wire rope winding drum of the present invention.

FIG. 4 is a sectional view taken along line BB of FIG. 2;

FIG. 5 is a sectional view taken along line CC of FIG. 2;

FIG. 6 is a view showing a wire rope.

FIG. 7 is a view showing a state in which the wire rope is wound on the wire rope winding drum of the present invention.

FIG. 8 is a side view showing one embodiment of a multi-story parking device using the winding drum of the present invention.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 wire rope winding drum 2 drum body 2a opening 3 wire rope 3a thimble 4a outer flange 4b outer flange 4c center flange 5a wire rope winding groove 5b wire rope winding groove 6a guide piece 6b guide piece 6c guide piece 6d guide Piece 6e Guide piece 6f Guide piece 7a Side plate 7b Side plate 7c Boss 8a Bolt 8b Through hole 8c Screw hole 9 Rod L1 Position where the winding direction of the wire rope is deflected L2 Position where the winding direction of the wire rope is deflected

Claims (3)

(57) [Claims] 1. A wire rope winding drum in which two wire ropes are wound symmetrically around a drum body, wherein a wire rope winding groove is spirally formed on an outer peripheral surface of the drum body, and the drum is wound. A wire rope winding drum, wherein a guide piece for deflecting the winding direction of a wire rope to be wound is formed on a flange of the body at a position where the winding direction of the wire rope is deflected. 2. A bolt inserted through a through hole provided on one side plate is inserted through a thimble formed at an end of a wire rope inserted through an opening of a drum body, and is inserted into a screw hole provided on the other side plate. The wire rope winding drum according to claim 1, wherein the wire rope is held by a drum body by screwing. 3. A wire rope is provided in the drum body near the opening of the drum body so as to extend from one side plate to the other side plate, and the rod is inserted into the opening of the drum body by the rod. The wire rope winding drum according to claim 1 or 2, wherein the wire rope winding drum is supported.