JP2002284487A - Rope latching attachment for different-diameter sheave - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily and safely mount a rope latching attachment between the outer diameters of different-diameter sheaves. SOLUTION: The rope latching attachments 15, 15 for the different-diameter sheaves having different-diameter sheaves including small-diameter sheaves 12, 12 or a large-diameter sheave 11 arranged neighboring each other on the same shaft 13 for preventing the removal of ropes R, R, R in rope grooves 11a, 12a, 12a of the different-diameter sheaves out of rope grooves 11a, 12a, 12a, comprises lower members 18, 18 located close to outer diameters 12b, 12b of the small-diameter-sheaves 12, 12 between the sectional widths of the rope grooves 12a, 12a and upper members 16, 16 located close to an outer diameter 11b of the large-diameter sheave 11 in the sectional width of the rope sheave 11a, both of which are integrally fixed via connecting materials 17, 17.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rope stopper for a sheave having a different diameter, and more particularly to a rope stopper for a sheave of a different diameter which can be easily and safely attached between outer diameters of the sheaves having different diameters. It is about a stop.

[0002]

2. Description of the Related Art A conventional rope shed stopper of a different sheave will be described with reference to FIG. FIG. 3 shows a side view of a sheave block 1 such as a crane, in which a large-diameter sheave 2 is disposed at the center, and small-diameter sheaves 3 and 3 are disposed on the left and right in parallel with the large-diameter sheave 2. And each sheave 2,3,3
Each sheave is supported by a shaft 4 passing through the center of the sheave. In the vicinity of both ends of the shaft 4, steel plates 5 a and 5 a are respectively erected perpendicularly to the shaft 4 to support the shaft 4.
An outer surface of the sheave block 1 is formed.

Further, the ropes R, R, R laid over the rope grooves 2a, 3a, 3a of the large-diameter sheave 2 and the small-diameter sheaves 3, 3 do not come off from the rope grooves 2a, 3a, 3a. , Are provided respectively. The large diameter sheave 2 is provided with a retaining member 7 made of a steel rod.
It is attached between the two steel plates 6 and extends from a hole (not shown) drilled in one steel plate 6 to a hole (not shown) drilled in the other steel plate 6 and has an outer diameter of the large-diameter sheave 2. 2b. Further, at both ends of the retaining member 7, retaining pins 9, 9 for retaining the steel plates 6, 6 are driven in and fixed.

On the other hand, the retaining members 8, 8 of the small-diameter sheaves 3, 3 are attached between the steel plate 5a and the steel plate 5b sandwiching the small-diameter sheave 3, and holes ( (Not shown) and a hole (not shown) formed in the other steel plate 5b, and is disposed close to the outer diameter 3b of the small-diameter sheave 3. Further, at both ends of the stopper member 8, pins 9 for preventing the steel plates 5a, 5b from coming off are driven and fixed.

[0005]

The rope stopper members are separately provided corresponding to the outer diameters of the large sheave and the small sheave, and a steel plate for attaching the rope stopper members is also provided for each of the sheaves. Since it is necessary to provide each on both sides, the man-hour for manufacturing the sheave block increases, and the man-hour for mounting the rope detachment preventing member also increases, resulting in an increase in cost.

In addition, when the rope stopper member is mounted on the outer diameter of the small-diameter sheave, the space between the steel plates on both sides of the large-diameter sheave and the steel plate erected on the side surface of the small-diameter sheave is small. The workability deteriorates, and the work is performed by putting a hand in the space, which is a dangerous work.

Therefore, it is possible to easily and safely attach the sheaves without separately providing them corresponding to the outer diameters of the respective sheaves.
A technical problem to be solved arises in order to obtain a rope stopper of different diameter sheave that can be removed, and the present invention aims to solve the problem.

[0008]

DISCLOSURE OF THE INVENTION The present invention has been proposed to achieve the above-mentioned object. In the present invention, small-diameter sheaves and large-diameter sheaves having different diameters are arranged adjacently on the same shaft.
A rope detaching stopper of a different diameter sheave for preventing a rope in a rope groove of the different diameter sheave from coming off from the inside of the rope groove. The lower member and the upper member positioned close to the large-diameter sheave outer diameter, and the upper member positioned between the rope groove cross-sectional widths are integrally fixed with a connecting member to form a rope detachment stopper of a different-diameter sheave, And a mounting portion for the lower member and the upper member positioned between the rope groove cross-sectional widths of the small-diameter sheave and the large-diameter sheave, wherein the lower-diameter sheave and the upper-diameter sheave are supported by support members erected near both ends of the shaft. A rope stopper is provided.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below in detail with reference to FIGS. FIG. 1A shows a side view of a sheave block 10, in which a large-diameter sheave 11 is disposed at the center, and small-diameter sheaves 12, 12 are disposed on both sides thereof in parallel with the large-diameter sheave 11. And each sheave 1
Each sheave is supported by a shaft 13 passing through the center of 1, 12, 12.

In addition, near the both ends of the shaft 13, the shaft 13
The support members 14 and 14 made of a steel plate are respectively erected perpendicularly to support the shaft 13 and the sheave block 10.
To form the outer surface. Further, the rope grooves 11a, 12a, 12 of the large-diameter sheave 11 and the small-diameter sheaves 12, 12 are formed.
a, the ropes R, R, R
a, 12a, and rope stoppers 15, 15 for preventing the ropes from coming off from the support members 14, 14 are provided. The rope detaching stoppers 15 are formed by dividing the large-diameter sheave 11 near the center of the rope R at an upper portion thereof.
The left and right rope stoppers 15 are formed by integrally fixing an upper member 16 and a lower member 18 with a connecting member 17 respectively.

FIG. 2A shows a front view of the rope detachment stopper 15, and FIG. 2B shows a side view thereof. The lower member 18 is made of round steel, and the lower surface of the round steel 18 is arranged horizontally close to the outer diameter 12b of the small-diameter sheave 12 and positioned between the cross-sectional widths of the rope grooves 12a. One end has a pin hole 19 protruding outward from a hole (not shown) formed in the steel plate 14 and being formed near the end.
The retaining pin 22 is driven into the steel plate 14 so that it can be fixed to the steel plate 14.

The other end is formed to be longer than the side surface of the small-diameter sheave 12 by a predetermined length on the side surface of the large-diameter sheave 11. However, the extension dimension is set to a length that does not hinder the large-diameter sheave 11 in attaching and detaching the rope release stopper 15 to and from the steel plate 14 described later.

Further, the upper member 16 is made of a steel pipe,
The lower surface of the steel pipe 16 is disposed horizontally close to the outer diameter 11b of the large-diameter sheave 11, and positioned between the cross-sectional widths of the rope grooves 11a. The upper member 16 shown in FIG. 1A is divided near the center of the rope R of the large-diameter sheave 11, so that one end of the left and right upper members 16 is connected to the rope groove. It is located between the cross-sectional widths of 11a to prevent the rope R from coming off. Further, the other end of the upper member 16 is brought close to the inside of the steel plate 14, and between the lower center of the upper member 16 and the upper center of the lower member 18 as shown in FIG. A connecting member 17 made of a steel plate is provided, and the upper member 16 and the lower member 18 are provided.
The two surfaces are welded together and integrated to form the rope detachment stopper 15.

Further, the steel plate 1 of the upper members 16, 16
As shown in FIG. 1 (a), the upper members 16 and 16 are attached to the steel plates 14 and 14 through holes (not shown) through which through pins 20 are inserted through the steel pipes. The retaining pins 21 and 21 are protruded to both sides, and are fixed by driving the retaining pins 21 and 21 into pin holes (not shown) formed near both ends of the through pin 20.

Next, a method of removing the rope release stoppers 15 from the sheave block 10 will be described with reference to FIG. First, after the retaining pins 22 that fix the lower members 18 are pulled out, the retaining pins 21 that fix the through pin 20 are pulled out, and the through pin 20 is connected to the steel plate. Remove from 14,14. Thereafter, as shown in FIG. 1 (b), one of the rope stoppers 15 is rotated in the direction of the arrow, and the lower member 18 is horizontally moved toward the large-diameter sheave 11 to remove the lower member 18. While removing from the steel plate 14, it is moved upward along the inner surface of the steel plate 14 and one of the rope stoppers 15 is removed. The removal of the rope stopper 15 is performed in the same manner.

Further, the rope detaching stoppers 15, 15 are attached to the sheave block 10 in a reverse procedure to the above-mentioned detaching method. Therefore, the attachment and detachment of the rope detachment stoppers 15 and 15 are performed by the steel plate 1.
It can be done easily and safely from the outside of 4,14.

It should be noted that the present invention is not limited to the use for a sheave, but can be used for preventing a rope from coming off or for holding down a rope, such as a winch drum.

Thus, the present invention can be variously modified without departing from the spirit of the present invention, and it goes without saying that the present invention extends to the modified ones.

[0019]

As described above, according to the first aspect of the present invention, the lower member and the outer diameter of the large-diameter sheave are located close to the outer diameter of the small-diameter sheave and the outer diameter of the large-diameter sheave. Since the upper member positioned between the rope groove cross-sectional widths is integrally fixed with the connecting member to constitute the rope detachment stopper, the number of members for supporting the rope detachment stopper can be reduced, and economy can be achieved. Labor saving of attachment and detachment can be achieved.

According to a second aspect of the present invention, in addition to the effect of the first aspect of the present invention, since the mounting portions of the lower member and the upper member are supported by supporting members erected near both ends, respectively, the rope comes off. The stopper itself can be easily attached and detached, and there is no danger of putting your hand in a narrow place inside the sheave block, and it can be safely attached and detached. It is an invention to play.

[Brief description of the drawings]

FIG. 1A is a side view of a sheave block according to an embodiment of the present invention, showing a state where a rope release stopper is attached. (B) FIG.

FIG. 2A is a front view of a rope detachment stopper. FIG. 2B is a view taken in the direction of arrow B in FIG.

FIG. 3 is a side view of a sheave block showing a state where a rope stopper member according to a conventional example is attached.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Sheave block 11 Large diameter sheave 11a Rope groove 11b Outer diameter 12 Small diameter sheave 12a Rope groove 12b Outer diameter 13 Shaft 14 Support member 15 Rope detachment stopper 16 Upper member 17 Connecting member 18 Lower member

Claims (2)

[Claims] 1. A different diameter sheave of a small diameter sheave or a large diameter sheave is arranged adjacently on the same shaft, and a rope in a rope groove of the different diameter sheave is prevented from coming off from the inside of the rope groove. In the rope release stopper of a sheave, a lower member positioned close to the small diameter sheave outer diameter and positioned between the rope groove cross-sectional widths, and a lower member positioned close to the large diameter sheave outer diameter, and the rope groove cross-sectional width A rope shed stopper for a sheave of a different diameter, wherein an upper member positioned between the sheaves is integrally fixed with a connecting member. 2. A mounting portion of the lower member and the upper member located between the rope groove cross-sectional widths of the small-diameter sheave and the large-diameter sheave is supported by support members erected near both ends of the shaft, respectively. The rope detaching stopper of the sheave of a different diameter according to claim 1.