JPH0743112Y2 - Hook hoist - Google Patents

Description

[Detailed Description of the Invention] A. Field of Industrial Application The present invention relates to an overhead traveling hoist that winds a wire rope around a drum and raises and lowers a hook suspended on the wire rope.

B. Outline of the device A pedestal movably provided along a horizontally extending rail, a motor-driven winding drum provided on the pedestal, and one end side wound around the winding drum and the other end side In a hook hoist comprising a plurality of wire ropes locked to the gantry and moving pulleys with hooks respectively suspended in the middle of the wire ropes, the winding drum is set in a rail extension direction. Since the moving pulleys are arranged on a straight line orthogonal to the extension direction of the rails, the distance between the hooks can be long and a relatively large number of hooks can be attached even if the drum is short. It is characterized by being able to do so.

C. Conventional Technology Fig. 6 shows a conventional hook hoist. This hook hoist consists of a pair of parallel rails 1,1 arranged horizontally on the ceiling.
It is installed so that it can move freely. That is, a gantry 2 is provided on the rail 1 so as to be movable along the rail 1, and a motor-driven winding drum 3 is mounted on the gantry 2. The winding drum 3 is attached at a right angle to the extension direction of the rail 1, and a plurality of wire ropes 4 are wound around the winding drum 3. A moving pulley 5 with a hook 6 is hung on each wire rope 4, and its end is locked to the gantry 2. The movable pulleys 5 are arranged at intervals on a straight line substantially orthogonal to the extension direction of the rail 1. When the wire rope 4 is wound up by the winding drum 3, the hook 6 is raised.

D. Problems to be Solved by the Invention In the above conventional hook hoist, the winding drum 3 is used.
Is arranged in a direction orthogonal to the rail 1, so that the distance between the hooks 6, 6 directly depends on the drum length. Therefore, the number of hooks 6 attached and the distance between the hooks are limited by the length of the drum.

Therefore, it is an object of the present invention to provide a hook hoist capable of providing a long distance between the hooks even with a short drum and mounting a relatively large number of hooks.

E. Means for Solving the Problems In order to solve the above problems, the present invention provides a gantry movably provided along a horizontally extending rail and one motor-driven winding drum provided on the gantry. And a plurality of wire ropes, one end of which is wound around the winding drum and the other end of which is locked to the gantry, and a plurality of moving pulleys with hooks which are respectively suspended and supported in the middle of the wire ropes. In the hook hoist, the winding drum is arranged horizontally with a small angle to the extension direction of the rail, and the plurality of moving pulleys are arranged on a straight line orthogonal to the extension direction of the rail. Arranged to form a hook hoist.

F. Action In the hook hoist of the present invention, the angle at which the winding drum is obliquely arranged with respect to the rail is made small, so that the wire rope extends obliquely with respect to the rail and the hook in the direction orthogonal to the rail. The distance can be set larger than the mutual distance between the wire ropes. Therefore, a relatively large number of hooks can be attached.

G. Embodiment An embodiment of the present invention will be described with reference to the drawings. 1 is a plan view of a hook hoist, FIG. 2 is a front view of the same, FIG. 3 (A) is a schematic plan view of a hook hoist, and FIG. 3 (B) is a schematic plan view when the distance between the hooks is changed. FIG. 4 (A) is a schematic plan view of a hook hoist according to another embodiment,
5B is a front view, FIG. 5 is a schematic plan view of a hook hoist according to another embodiment, and FIG. 5B is a front view thereof.

In FIGS. 1 and 2, 11 is a pair of horizontally extending rails, and 12 is a pedestal installed on the rail 11. Stand
12 is movable on the rail 11 by the traveling devices 12a, 12a at both ends. A take-up drum 13 driven by a motor 14 is mounted on the frame 12. This winding drum
The rail 13 is arranged horizontally and obliquely with respect to the rail 11.
One end sides of the wire ropes 15, 16 and 17 are wound and locked on the winding drum 13. The other ends of the wire ropes 15 and 16 hang down via sheaves 18 and 18 that are axially supported on the gantry 12.
A movable pulley 19 is suspended in the middle and locked to the pedestal 12. The movable pulley 19 is provided with a hook 20. Winding drum 13
The wire rope 17 wound around the other side hangs as it is, and a moving pulley 21 is suspended in the middle, and the other end is locked to the gantry 12. The movable pulley 21 is provided with a hook 22. A limit switch 23 is attached to the upper limit position of the movable pulley 21.

Next, the operation of the above embodiment will be described. The winding drum 13 is driven by the motor 14 to wind the wire ropes 15, 16 and 17. As shown in FIG. 3, if the angle of the winding drum 13 with respect to the rail 11 is made small, the distance A between the hooks 20 and 22 can be made long even with a short drum. Therefore, it is possible to increase the number of wire ropes and attach many hooks.

As shown in FIG. 4, the wire rope 16 is omitted, and the hook 20 is wound only by the wire rope 15, and the end of the wire rope 17 is locked on the opposite side to the previous embodiment. Or, even if the end portion of the wire rope 15 is locked between the winding drum 13 and the sheave 18 as shown by the phantom line in the figure, it is needless to say that the same operational effect as the above-mentioned embodiment can be obtained. Absent.

In addition, as shown in FIG. 5, the ends of the wire ropes 15 and 16 are joined to each other, and the intermediate portion is connected to the sheave 24 provided on the gantry 12.
Even when the wire ropes 17 and 26 are connected to the sheaves 25 provided on the gantry 12 by connecting the ends of the wire ropes 17 and 26 to each other, the same operational effects as those of the above-described embodiment can be obtained. In short, take-up drum 13
However, it is sufficient that the wire ropes are arranged obliquely horizontally with respect to the extension direction of the rails 11, and the movable pulleys 19 and 21 are arranged on a straight line orthogonal to the extension direction of the rails. You can take a variety of things.

H. Effect of the Invention As described above, according to the present invention, the gantry movably provided along the horizontally extending rail, one motor-driven take-up drum provided on the gantry, and the take-up drum. A hook hoist comprising a plurality of wire ropes, one end side of which is wound around, and the other end side of which is locked to the pedestal, and a plurality of moving pulleys with hooks which are respectively suspended and supported in an intermediate portion of the wire ropes, Since the take-up drum is arranged horizontally with a small angle to be arranged obliquely with respect to the extension direction of the rail and the plurality of moving pulleys are arranged on a straight line orthogonal to the extension direction of the rail, even with a short drum. The effect that the intervals between the hooks can be long and that a relatively large number of hooks can be attached.

[Brief description of drawings]

1 to 5 show an embodiment of the present invention,
1 is a plan view of the hook hoist, FIG. 2 is a front view of the same,
3 (A) is a schematic plan view of the hook hoist, FIG. 3 (B) is a schematic plan view when the distance between the hooks is changed, and FIG. 4 (A) is a schematic of a hook hoist of another embodiment. Plan view, FIG. 5B is a front view, FIG. 5A is a schematic plan view of a hook hoist of another embodiment, FIG. 5B is a front view, and FIG. 6A. Is a schematic plan view of a conventional hook hoist, and FIG. 11 …… Rail, 12 …… Stand, 12a …… Traveling device, 13 ……
Take-up drum, 14 …… motor, 15,16,17 …… wire rope, 18 …… sheave, 19 …… movable pulley, 20 …… hook, 21…
… Movable pulley, 22 …… hook, 23 …… limit switch.

Claims (1)

[Scope of utility model registration request] 1. A gantry movably provided along a horizontally extending rail, one motor-driven take-up drum provided on the gantry, one end of which is wound around the take-up drum, and the other. In a hook hoist including a plurality of wire ropes locked to the gantry on the end side and a plurality of moving pulleys with hooks respectively hung and supported at an intermediate portion of the wire ropes, the winding drum is extended to a rail. The hook hoist characterized in that the plurality of moving pulleys are arranged on a straight line orthogonal to the extension direction of the rail, the plurality of moving pulleys being arranged horizontally with a small angle arranged obliquely with respect to the direction.