JPH0641989Y2 - Equalizer sheave support device for hoist - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION A. Field of Industrial Application The present invention relates to an equalizer sheave support device for a hoist, and more particularly to an equalizer sheave support device for a hoist capable of expanding the lift of a hook more than before.

B. Outline of the Invention The equalizer sheave supporting device for a hoist according to the present invention is
By arranging the rotary shaft of the equalizer sheave main body and the suspension pin of the supporter so that their axial directions are orthogonal to each other, the height positions of the both are made equal.

As a result, the installation position of the main body of the equalizer sheave can be set higher than in the conventional case, so that the lift of the hook can be increased.

C. Prior Art FIG. 4 shows a schematic side view of a conventionally known hoist, and FIG. 5 as an enlarged view of a part thereof shows a conventionally known equalizer sheave supporting device for hoists. Has been done.

In the figure, a wire rope 2 suspending a hook 1 is wound around an equalizer sheave body 4a of an equalizer sheave portion 4 attached to a drum case 3.

An equalizer pin (rotating shaft) 5 is fixed to the center of the equalizer sheave body 4a.
It is suspended in the drum case 3 by a suspension pin 7b via a supporter 6b that supports the shaft.

D. Problems to be solved by the invention In the hoist, the lift of the hook 1 should be as high as possible without changing the height position of the drum case 3 to expand the lifting range of the hook 1, that is, the cargo handling range. Is desirable.

However, in the above-described conventional equalizer sheave support device, in order to suspend the equalizer sheave body 4a in the drum case 3, the supporter 6 is provided in the drum case 3.
Space is needed to store the upper half of the. This storage space is located above the equalizer sheave body 4a, and as a result, there arises a problem that the lift of the hook 1 is restricted.

The present invention has been made in view of the above problems, and provides an equalizer sheave support device for a hoist capable of further increasing the lift of the hook 1 as compared with a conventional hoist.

E. Means for Solving the Problems In order to achieve the above object, the equalizer sheave supporting device for a hoist according to the present invention is an equalizer sheave main body of a hoist, and a rotary shaft fixed to a central portion of the equalizer sheave main body. In an equalizer sheave support device for a hoist comprising a supporter that axially supports the rotation shaft and a suspension pin that suspends the supporter in a drum case, the supporter that axially supports the rotation shaft includes the upper half of the equalizer sheave body. The suspension pin is formed in a frame shape that is exposed and bent, and the suspension pin is projected at both ends in a direction orthogonal to the axial direction of the rotation shaft of the frame-shaped supporter. Is provided on the drum case.

In this case, it is preferable that the engaging means is a cutout portion provided in the drum case.

F. Action In the equalizer sheave support device for hoists configured as described above, the suspension pins of the supporter and the rotary shaft of the equalizer sheave main body have the same height position. That is, the mounting height position of the equalizer sheave main body with respect to the drum case, that is, the mounting height position of the rotating shaft is the same height position as the hanging pin. Therefore, it is not necessary to provide a component such as a hanging pin above the equalizer sheave main body in the drum case, and a space is created. Therefore, even if the height of the drum case is the same as before,
The equalizer sheave body can be installed at a higher position than before. When the installation position of the equalizer sheave main body becomes higher, the lifting height of the hook also becomes higher, so that the loading range of the hoist is expanded.The engaging means of the suspension pin with respect to the drum case is provided with a cutout portion in the drum case. Easy to configure.

G. Examples Examples will be described below with reference to the accompanying drawings.

FIG. 1 is a perspective view according to an embodiment of the present invention, in which X-
A side view in the X direction is shown in FIG.

In the figure, a supporter 6a that pivotally supports the equalizer pin 5
Is a frame that surrounds the main body of the equalizer sheave. However, the width h in the height direction of the supporter 6a is set so that the upper half of the equalizer sheave body 4a is exposed.
Further, the suspension pins 6a are respectively provided at both ends in the direction orthogonal to the equalizer pin axial direction of the supporter 6a.
Is protruding. Therefore, the mounting height position of the equalizer sheave main body 4a with respect to the drum case is the same height position as the hanging pin 7a.

According to this structure, the conventional supporter 6b shown in FIGS. 4 and 5 is provided above the equalizer sheave body 4a.
It is not necessary to provide the upper half of the above. Therefore, a space is created in the space above the equalizer sheave body 4a in the drum case 3. Therefore, the mounting position of the equalizer sheave body 4a can be made higher than the conventional one by half or more of the outer diameter of the equalizer sheave body 4a.

The means for engaging the hanging pin 7a with the drum case 3 is
As shown in FIG. 3, the drum case 3 can be easily constructed by providing a U-shaped cutout portion 8.

H. Effect of the Invention Since the present invention is configured as described above, it has the following effects.

In the conventional equalizer sheave support device for hoists, it is necessary to provide a storage space such as the upper half of the supporter above the main body of the equalizer sheave in the drum case. However, in the present invention, by setting the equalizer pin and the hanging pin at the same height position, the above-mentioned storage space becomes unnecessary and a space is created in the space above the main body of the equalizer sheave in the drum case. Therefore, the mounting position of the equalizer sheave main body can be positioned higher than that of the conventional one. Therefore, the lifting height of the hook can be further increased, and the hoist handling range can be expanded.

[Brief description of drawings]

FIG. 1 is a perspective view of an equalizer sheave support device of a hoist, FIG. 2 is a side view in the XX direction of FIG. 1, FIG. 3 is an explanatory view showing attachment of the equalizer sheave support device to a drum case, and FIG. Is a side view of a conventional hoist, FIG. 5 is a partially enlarged view of FIG. 4, and is a side view of a conventional equalizer sheave support device. 4a: Equalizer sheave main body 5: Equalizer pin (rotating shaft) 6a: Supporter 7a: Suspension pin 8: Notch part In the drawings, the same reference numerals indicate the same or corresponding parts.

Claims (2)

[Scope of utility model registration request] Claim: What is claimed is: 1. A hoist equalizer sheave main body, and a rotary shaft fixed to the center of the equalizer sheave main body.
In an equalizer sheave support device for a hoist comprising a supporter that axially supports the rotation shaft and a suspension pin that suspends the supporter in a drum case, the supporter that axially supports the rotation shaft includes the upper half of the equalizer sheave body. The suspension pin is formed in a frame shape that is exposed and bent, and the suspension pin is projected at both ends in a direction orthogonal to the axial direction of the rotation shaft of the frame-shaped supporter. An equalizer sheave support device for a hoist, wherein the drum case is provided with an engagement means for engaging with each other. 2. The hoist equalizer sheave support device according to claim 1, wherein the engaging means is a notch provided in the drum case.