JPH0694105A - Pulley for rope - Google Patents

Abstract

PURPOSE:To obtain a pulley for a rope which can be carried in and mounted easily even in a narrow space. CONSTITUTION:A first shaft 19 for pivotally holding a wheel body 7 having rope ditches 6 and projecting from the wheel body 7, and a second shaft 20 whose end surface faces the side end surface of the wheel body 7 of the first shaft 19 are provided. A connection means 23 is formed by providing a recessed part 21 on one of the facing end surfaces of the first shaft 19 and the second shaft 20 and a projecting part 22 fitted thereto on the other side thereof. Thereby, the wheel body 7 pivotally holding a position shifted to one end of the first shaft 19 in mounting a pulley 5 is inclined and carried in its inserted state between beams 4 and the second shaft 20 is connected to the first shaft 19 by the connection means 23 and tightened to the beams 4. Thus, the pulley can be installed even if the clearance between the beam across an elevating channel and the ceiling of the elevating channel is narrow and the construction cost of the elevating channel is reduced.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rope pulley for guiding the main ropes of an elevator.

[0002]

2. Description of the Related Art FIGS. 6 to 9 show, for example, Japanese Patent Laid-Open No. 3-311.
It is a figure which shows the conventional pulley for a rope similar to the suspension wheel shown by the 84 publication, FIG. 6 is a longitudinal cross-sectional view of the hoistway top part of an elevator apparatus, FIG. 7: AA sectional view taken on the line of FIG. 8 is a view showing a state where the beams are arranged close to the hoistway wall in FIG. 7, and FIG. 9 is a right side view showing the hoistway wall of FIG. 8 excluding the hoistway wall. In each figure, (1) is an elevator hoistway consisting of a wall (2) and a ceiling (3), (4) is a beam provided across the hoistway (1), and (41) is a ceiling (3) 6 is a first beam arranged at a distance S shown in FIG. 6, and (42) is a second beam arranged at a distance S shown in FIG. 6 from the lower surface of the first beam (41). It is provided with a gap formed in.

Reference numeral (5) is a pulley in which a wheel body (7) having a rope groove (6) on a cylindrical surface is pivotally attached to a shaft (8), and the first beam (41) and the second beam (42). ) Are separated from each other by two pieces,
The end of the shaft (8) is fastened by a U bolt (9) inserted through the beam (4) and a nut (10) screwed into the insertion end of the U bolt (9), or the end of the shaft (8) Seats (11) fixed to the beam (4) are provided on both sides of the section, and a retainer (12) for pressing the end of the shaft (8) arranged between the seats (11). Bolts inserted into the beam (4) and threaded into the seat (11)
It is concluded by (13).

(14) is a car arranged in the hoistway (1), (15)
Is a counterweight placed in the hoistway (1), and (16) has one end connected to the car (14) and is wound around the pulley (5) of the second beam (42) and hangs down. The rope is wound around (not shown) and rises, is wound around the pulley (5) of the first beam (41) and hangs down, and is connected to the counterweight (15).

The conventional rope pulley is constructed as described above and mounted on the beam (4). Then, when the hoist is energized, the rope (16) is guided by the pulley (5) and moves to move the cage (1
4) The counterweight (15) moves up and down in opposite directions.

[0006]

[Problems to be Solved by the Invention] The conventional rope pulley (5) as described above is carried into the hoistway (1) while the wheel body (7) is pivotally attached to the shaft (8) during installation. Therefore, the first beam shown in FIG.
The distance S between the (41) and the ceiling (3) of the hoistway (1) needs to be longer than the diameter of the wheel (7). Also, for the second beam (42), a distance S longer than the diameter of the wheel body (7) shown in FIG. 6 is required to carry in the pulley (5). Therefore, there is a problem that an unexpectedly high space is required at the top of the hoistway (1), and the construction cost of the hoistway (1) increases.

Further, as shown in FIG. 8, when the shaft (8) end of the pulley (5) and the wall (2) of the hoistway (1) are arranged close to each other, the wall
On the (2) side, fastening using the U-bolt (9) is impossible, and at a position farther than the diameter of the wheel body (7), the seat (11), the retainer
It is fastened with (12) and bolts (13). Therefore, there is a problem that a large fastening member is required and the manufacturing cost is increased.

The present invention has been made to solve the above problems, and an object of the present invention is to obtain a rope pulley which can be easily carried in and mounted even in a narrow space.

[0009]

In a rope pulley according to a first aspect of the present invention, a wheel body having a rope groove formed in a cylindrical surface and a wheel body pivotally attached to one end of the wheel body are provided. The left shaft protruding from the body, the right shaft whose end face is arranged to face the ring-side end face of the left shaft, the recess provided in one of the facing end faces of the left shaft and the right shaft, and the other of the facing end faces. And a connecting means composed of a convex portion that fits in the concave portion.

In the rope pulley according to the second aspect of the present invention, a wheel body having a rope groove formed in a cylindrical surface and a wheel body pivotally attached to one end of the wheel body protrudes from the wheel body. The left shaft, the right shaft whose end face is arranged to face the end face on the wheel body side of the left shaft, the recess provided on one of the opposing end faces of the left shaft and the right shaft, and the recess provided on the other of the opposing end faces. There are provided connecting means composed of matching convex portions, and fastening means engaged with the other of the left shaft and the right shaft from the opposite end face side of one of the both.

[0011]

According to the rope pulley of the invention described in claim 1 of the present invention constructed as described above, the ring body pivotally attached to one end of the left shaft is tilted to be inserted between the beams. Then, the right shaft is connected to the left shaft by the connecting means.

Further, in the rope pulley of the invention according to claim 2 of the present invention configured as described above, the wheel body pivotally attached to one end of the left shaft is tilted to be inserted between the beams. Then, the right shaft is connected to the left shaft by the connecting means. Then, the left shaft and the right shaft are fastened by the fastening means.

[0013]

【Example】

Example 1. 1 to 4 are views showing an embodiment of the present invention, and FIG. 1 is a view showing an installed state of a rope pulley at a top portion of a hoistway of an elevator apparatus, and is a view showing a rope pulley partially cut longitudinally. 2, FIG. 2 is a diagram for explaining the installation work state of the rope pulley of FIG. 1, FIG. 3 is a diagram showing a state in which a beam is arranged close to a hoistway wall in the state of FIG. 1, and FIG. It is a right side view shown except a hoistway wall. In each figure, (1)
1 is an elevator hoistway consisting of a wall (2) and a ceiling (3), and (4) is a beam provided across the hoistway (1).
Are arranged at a distance S shown in (1), and the two are provided with a gap therebetween.

Reference numeral (5) is a pulley in which a wheel body (7) having a rope groove (6) provided on a cylindrical surface is pivotally attached to a shaft (8), and the end of the shaft (8) is a beam.
It is fastened by the U bolt (9) inserted in (4) and the nut (10) screwed into the insertion end of the U bolt (9), or the shaft.
(8) Seats (11) fixed to the beam (4) are provided on both sides of the ends, and a retainer (12) for pressing the ends of the shaft (8) arranged between the seats (11) is provided. ) And the seat (11)
It is fastened by bolts (13) screwed into (4).

The shaft (8) is constructed as described below. That is, the ring (7) near the one end is the bearing cover.
The left shaft (19) pivotally mounted by the bearing (18) provided with (17) and protruding from the wheel body (7), and the end surface faces the wheel body (7) side end surface of the left shaft (19). The right axis (20) placed and the right axis (2
0) the recessed part (21) provided on the opposite end surface and the left shaft of the right shaft (20)
Convex part (2) provided on the opposite end face of (19) and fitted in the concave part (21)
A connecting means (23) consisting of 2) is provided.

The rope pulley is constructed as described above and has a beam structure.
Installed in (4), the rope groove (6) guides the rope (16). Then, the pulley (5) should be inserted with the wheel body (7) tilted as shown in FIG. 2 between the beams (4) from the direction of the arrow shown in FIG. 2 with the right shaft (20) removed. It is brought into a safe state. Then, the protrusion (22) of the right shaft (20) is fitted into the recess (21) of the left shaft (19) by the connecting means (23) to connect the left shaft (19) and the right shaft (20), The pulley (5) is attached to the beam (4) by the U bolt (9), the retainer (12) and the like.

With the above structure, the distance S between the beam (4) provided across the hoistway (1) and the ceiling (3) of the hoistway (1) is shown by the pulley (5) in FIG. With the right shaft (20) removed, the wheel (7) is tilted between the beams (4) from the direction of the arrow shown in FIG. Therefore, it can be made shorter than the state shown in FIG. 7. Therefore, the space required for the top of the hoistway (1) is small, and the construction cost of the hoistway (1) can be reduced.

Further, as shown in FIG. 3, a wall (2) of the hoistway (1) is provided close to the end of the shaft (8) of the pulley (5), and a U bolt ( If 9) cannot be used, the pulley (5) will be installed as follows. That is, the right shaft (20) is removed from the pulley (5) and only the right shaft (20) is restrained by the beam (4).
2) and then the ring body (7) mounted on the left shaft (19) according to the procedure shown in FIG. 2 is arranged in an inserted state between the beams (4). Then, the protrusion (22) of the right shaft (20) is fitted into the recess (21) of the left shaft (19) by the connecting means (23), and the left shaft (19),
The right shaft (20) is connected, and the left shaft (19) is fastened to the beam (4) with U bolts (9) or the like to mount the pulley (5).

Therefore, the right shaft (20) can be fastened to the beam (4) by the seat (11) and the retainer (12) which are arranged close to the shaft (5). For this reason, it is possible to reduce the manufacturing cost without requiring a large fastening member.

It should be noted that it is easily possible to apply the embodiments of FIGS. 1 to 4 and to configure as described below. That is, the shaft is divided into three parts, the ring body (7) is pivotally attached to the intermediate shaft, and the end shafts corresponding to the right shaft (20) are connected to both sides of the intermediate shaft, respectively, and one end shaft is removed. Beam as shown in Fig. 2
Attach the pulley to (4). Even in this way, FIGS.
It is obvious that the same effect as that of the embodiment can be obtained.

Example 2. FIG. 5 is a view showing another embodiment of the present invention, and FIG. 5 is a view showing an installed state of the rope pulley at the top of the hoistway of the elevator apparatus, in which the rope pulley is partially broken and longitudinally shown. Is. In the drawings, the same reference numerals as those in the embodiment of FIGS. 1 to 4 indicate corresponding parts, and (24) is inserted into the right shaft (20) from the opposite end surface side of the right shaft (20) opposite the left shaft (19) to the left. Axis (19)
It is a fastening means consisting of a bolt screwed into.

Also in this embodiment, the right shaft (2) of the pulley (5) is
The ring body (7) can be disposed between the beams (4) in a state where the ring body (7) is inserted between the beams (4) with the (0) removed. Therefore, although detailed description is omitted, in FIG.
It is obvious that the same effect as the embodiment of FIG. 4 can be obtained. Also, in this embodiment, the right axis (20) and the left axis (19)
Are fastened to each other by the fastening means (24), the right shaft (20)
Also, the left shaft (19) can be reliably integrated, and safety can be improved.

[0023]

As described above, the first aspect of the present invention is provided.
The rope pulley of the invention described is a wheel body in which a rope groove is provided on a cylindrical surface, a left shaft in which the wheel body is pivotally attached to one end and protrudes from the wheel body, and an end surface is a wheel body side end surface of the left shaft. A right shaft arranged facing each other, and a connecting means composed of a concave portion provided on one of the opposite end surfaces of the left shaft and the right shaft and a convex portion provided on the other opposite end surface and fitted into the concave portion. Is.

Thus, when the pulley is mounted, the ring body pivotally mounted near one end of the left shaft is tilted to be inserted between the beams, and then the right shaft is connected to the left shaft by the connecting means. Therefore, the pulley can be installed even if there is a small gap between the beam installed across the hoistway and the hoistway ceiling, the space required at the top of the hoistway can be reduced, and the construction cost of the hoistway can be reduced. Has the effect of

As described above, in the rope pulley according to the second aspect of the present invention, the wheel body in which the rope groove is provided on the cylindrical surface and the wheel body in which the wheel body is pivotally mounted near one end are provided. From the left shaft, the right shaft whose end face is arranged to face the ring-side end face of the left shaft, the recess provided in one of the opposite end faces of the left shaft and the right shaft, and the other of the opposite end faces. The connecting means is composed of a convex portion that fits into the concave portion, and the fastening means that is engaged with the other of the left shaft and the right shaft from the opposite end face side of both of them.

As a result, the ring body pivotally attached to one end of the left shaft is arranged in a state of being inserted between the beams, then the right shaft is connected to the left shaft by the connecting means, and the left shaft and the right shaft are fastened. It is fastened by means. Therefore, the pulley can be installed even if there is a small gap between the beam provided across the hoistway and the hoistway ceiling, the space required at the top of the hoistway can be reduced, and the construction cost of the hoistway can be reduced. be able to. Further, the fastening means surely integrates the right shaft and the left shaft with each other, which has the effect of improving safety.

[Brief description of drawings]

FIG. 1 is a view showing a first embodiment of the present invention, showing an installed state of a rope pulley at a top portion of a hoistway of an elevator apparatus, in which a portion of the rope pulley is cut vertically.

FIG. 2 is a diagram illustrating an installation work state of the rope pulley of FIG.

FIG. 3 is a diagram showing a state in which a beam is arranged close to a hoistway wall in the state of FIG. 1;

FIG. 4 is a right side view showing the hoistway wall of FIG.

5 is a view corresponding to FIG. 1 showing a second embodiment of the present invention.

FIG. 6 is a vertical cross-sectional view of the top of a hoistway of an elevator apparatus showing a conventional rope pulley.

7 is a cross-sectional view taken along the line AA of FIG.

FIG. 8 is a view showing a state in which beams are arranged close to the hoistway wall in FIG. 7;

9 is a right side view showing the hoistway wall of FIG.

[Explanation of symbols]

 6 Rope groove 7 Ring body 19 Left shaft 20 Right shaft 21 Recessed portion 22 Convex portion 23 Connecting means 24 Fastening means

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[Procedure amendment]

[Submission date] July 30, 1993

[Procedure Amendment 1]

[Document name to be amended] Statement

[Name of item to be corrected] Claim 1

[Correction method] Change

[Correction content]

[Procedure Amendment 2]

[Document name to be amended] Statement

[Name of item to be corrected] Claim 2

[Correction method] Change

[Correction content]

[Procedure 3]

[Document name to be amended] Statement

[Correction target item name] 0009

[Correction method] Change

[Correction content]

[0009]

In a rope pulley according to a first aspect of the present invention, a wheel body having a rope groove formed in a cylindrical surface and a wheel body pivotally attached to one end of the wheel body are provided. a first shaft that forms one side of a longitudinal protruding shaft from the body, are arranged end face facing a rear wheel side end face of the first axis length of the shaft
A second shaft forming the other side of the hand, and a connecting means composed of a recess provided on one of the opposing end faces of the first shaft and the second shaft and a protrusion provided on the other of the opposing end faces and fitted into the recess. Is provided.

[Procedure amendment 4]

[Document name to be amended] Statement

[Correction target item name] 0010

[Correction method] Change

[Correction content]

Further, in the pulley rope according to the invention of claim 2, wherein the present invention, protruding shaft and wheel body rope grooves provided on the cylindrical surface, is pivotally secured the wheel body near one end from the wheel unit of a first axis that forms one side of the longitudinal, are arranged end face facing a rear wheel side end face of the first shaft to the other side of the longitudinal of the axis
A second shaft formed, the connecting means comprising a convex portion to be fitted to the first shaft and provided on the other of the recess and the facing end surface provided on one recess of the facing end surface of the second shaft, the first shaft and Second
Fastening means is provided which is engaged with the other end of one of the shafts from the opposite end face side of the other.

[Procedure Amendment 5]

[Document name to be amended] Statement

[Correction target item name] 0011

[Correction method] Change

[Correction content]

[0011]

According to the rope pulley of the invention described in claim 1 of the present invention, the loop body pivotally attached to one end of the first shaft is tilted and arranged between the beams. Then, the second shaft is connected to the first shaft by the connecting means.

[Procedure correction 6]

[Document name to be amended] Statement

[Correction target item name] 0012

[Correction method] Change

[Correction content]

In the rope pulley according to the second aspect of the present invention constructed as described above, the loop body pivotally mounted near one end of the first shaft is tilted to be inserted between the beams. And then the second shaft is connected to the first shaft by the connecting means. Then, the second shaft is fastened to the first shaft by the fastening means.

[Procedure Amendment 7]

[Document name to be amended] Statement

[Name of item to be corrected] 0015

[Correction method] Change

[Correction content]

The shaft (8) is constructed as described below. That is, the ring (7) near the one end is the bearing cover.
A first shaft (19) pivotally mounted by a bearing (18) provided with (17) and protruding from the ring (7) to form one longitudinal side of the shaft (8) ;
The end face is arranged so as to face the end face of the first shaft (19) on the ring (7) side.
Second shaft (20) forming the other side of the longitudinal axis (8 ) and the first shaft
A recess (21) provided on the end face of the second shaft (20) of (19), and
Provided on the counter end face recess of the second shaft (20) first axis (19) of (2
A connecting means (23) consisting of a convex portion (22) fitted to 1) is provided.

[Procedure Amendment 8]

[Document name to be amended] Statement

[Correction target item name] 0016

[Correction method] Change

[Correction content]

The rope pulley is constructed as described above and has a beam structure.
Installed in (4), the rope groove (6) guides the rope (16). Then, the pulley (5) is inserted with the wheel body (7) tilted between the beams (4) from the direction of the arrow shown in FIG. 2 with the second shaft (20) removed, as shown in FIG. It is carried in such a state. Then, by the connecting means (23), the recess (2
Protrusion of the second shaft (20) 1) (22) is fitted in the first shaft (19), first
The two shafts (20) are connected, and the pulley (5) is attached to the beam (4) by the U bolt (9), the retainer (12) and the like.

[Procedure Amendment 9]

[Document name to be amended] Statement

[Correction target item name] 0017

[Correction method] Change

[Correction content]

With the above structure, the distance S between the beam (4) provided across the hoistway (1) and the ceiling (3) of the hoistway (1) is shown by the pulley (5) in FIG. the second shaft (20) is carried into the insertion state by tilting the Watai (7) as shown in FIG. 2 therebetween beam (4) from an arrow direction shown in FIG. 2 in a state that has been removed positioned such Therefore, it can be made shorter than the state shown in FIG. 7. Therefore, the space required for the top of the hoistway (1) is small, and the construction cost of the hoistway (1) can be reduced.

[Procedure Amendment 10]

[Document name to be amended] Statement

[Correction target item name] 0018

[Correction method] Change

[Correction content]

Further, as shown in FIG. 3, a wall (2) of the hoistway (1) is provided close to the end of the shaft (8) of the pulley (5), and a U bolt ( If 9) cannot be used, the pulley (5) will be installed as follows. Ie from the pulley (5)
The second axis and remove the second shaft (20) only (20) mounted by suppressing device (12) or the like to the beam (4), then to the first axis (19) in accordance with the procedure shown in FIG. 2 The mounted wheels (7) are arranged in an inserted state between the beams (4). Then, by the connecting means (23), the first
The convex portion (22) of the second shaft (20) is fitted into the concave portion (21) of the shaft (19).
The first shaft (19) and the second shaft (20) are connected, and the first shaft (19) is fastened to the beam (4) by a U bolt (9) or the like, and the pulley (5) is mounted.

[Procedure Amendment 11]

[Document name to be amended] Statement

[Correction target item name] 0019

[Correction method] Change

[Correction content]

Therefore, the second shaft (20) can be fastened to the beam (4) by the seat (11) and the retainer (12) which are formed close to the shaft (5). Therefore, <br/> large seat shown in FIG. 9 as in the prior art (11), thereby reducing the manufacturing costs without requiring the fastening member made of suppressing member (12).

[Procedure Amendment 12]

[Document name to be amended] Statement

[Correction target item name] 0020

[Correction method] Change

[Correction content]

It should be noted that it is easily possible to apply the embodiments of FIGS. 1 to 4 and to configure as described below. That is, the shaft is divided into three, the ring body (7) is pivotally attached to the intermediate shaft, and the end shafts corresponding to the second shaft (20) are connected to both sides of the intermediate shaft, respectively . Remove the beam as shown in Figure 2.
Attach the pulley to (4). Even in this way, FIGS.
It is obvious that the same effect as that of the embodiment can be obtained.

[Procedure Amendment 13]

[Document name to be amended] Statement

[Correction target item name] 0021

[Correction method] Change

[Correction content]

Example 2. FIG. 5 is a view showing another embodiment of the present invention, and FIG. 5 is a view showing an installed state of the rope pulley at the top of the hoistway of the elevator apparatus, in which the rope pulley is partially broken and longitudinally shown. Is. In the figure, examples of the same reference numerals of FIGS. 1-4 show a substantial portion, (24) is inserted from the anti-first shaft (19) opposite end face of the second shaft (20) to the second shaft (20) Been first
It is a fastening means consisting of bolts screwed into the single shaft (19).

[Procedure Amendment 14]

[Document name to be amended] Statement

[Name of item to be corrected] 0022

[Correction method] Change

[Correction content]

Also in this embodiment, the second shaft of the pulley (5)
With the (20) removed, the ring (7) can be placed between the beams (4) in the inserted state as in FIG. Therefore, although detailed description is omitted, in FIG.
It is obvious that the same effect as the embodiment of FIG. 4 can be obtained. Also, in this embodiment, the second shaft (20) and the first shaft
Since the (19) is fastened to each other by the fastening means (24), the second
The shaft (20) and the first shaft (19) can be reliably integrated, and safety can be improved.

[Procedure Amendment 15]

[Document name to be amended] Statement

[Name of item to be corrected] 0023

[Correction method] Change

[Correction content]

[0023]

As described above, the first aspect of the present invention is provided.
The rope pulley of the invention described is a ring body having a rope groove formed in a cylindrical surface, and a first shaft in which the ring body is pivotally mounted near one end and projects from the ring body to form one longitudinal side of the shaft, The end face is arranged so as to face the end face of the first shaft on the wheel body side, and the other side of the longitudinal direction of the shaft
A second shaft formed with a groove, and a connecting means composed of a concave portion provided on one of the opposed end surfaces of the first shaft and the second shaft and a convex portion provided on the other of the opposed end surfaces and fitted into the concave portion. Is.

[Procedure Amendment 16]

[Document name to be amended] Statement

[Name of item to be corrected] 0024

[Correction method] Change

[Correction content]

[0024] Thus, by tilting the end closer to the pivotally mounted the wheels of the first shaft when the pulley mounting arranged in the insertion state therebetween beams, then connected by a second shaft connection means to the first axis To be done. Therefore, the pulley can be installed even if there is a small gap between the beam installed across the hoistway and the hoistway ceiling, the space required at the top of the hoistway can be reduced, and the construction cost of the hoistway can be reduced. Has the effect of

[Procedure Amendment 17]

[Document name to be amended] Statement

[Name of item to be corrected] 0025

[Correction method] Change

[Correction content]

As described above, in the rope pulley according to the second aspect of the present invention, the wheel body in which the rope groove is provided on the cylindrical surface and the wheel body in which the wheel body is pivotally mounted near one end are provided. a first axis that forms one side of a longitudinal protruding shaft from the end face the
It is disposed facing a rear wheel side end face of one axis of the longitudinal of the shaft
A second shaft which forms the other side, the coupling means comprising a convex portion to be fitted to the first shaft and provided on the other of the recess and the facing end surface provided on one recess of the facing end surface of the second shaft, the The fastening means engaged with the other end of one of the first shaft and the second shaft from the opposite end face side is provided.

[Procedure 18]

[Document name to be amended] Statement

[Correction target item name] 0026

[Correction method] Change

[Correction content]

As a result, the ring body pivotally attached to one end of the first shaft is arranged in an inserted state between the beams, and then the first body is inserted .
The second shaft is connected by the connecting means to one axis, the first axis and second
The two shafts are fastened by the fastening means. Therefore, the pulley can be installed even if there is a small gap between the beam provided across the hoistway and the hoistway ceiling, the space required at the top of the hoistway can be reduced, and the construction cost of the hoistway can be reduced. be able to. Further, the fastening means surely integrates the second shaft and the first shaft with each other, which has the effect of improving safety.

[Procedure Amendment 19]

[Document name to be amended] Statement

[Correction target item name] Explanation of code

[Correction method] Change

[Correction content]

[Explanation of Codes] 6 Rope groove 7 Wheel 8 Shaft 19 First shaft 20 Second shaft 21 Recessed portion 22 Convex portion 23 Connecting means 24 Fastening means

Claims (2)

[Claims] 1. A ring body having a rope groove formed on a cylindrical surface,
A left shaft having the ring body pivotally attached to one end and protruding from the ring body, a right shaft whose end face is arranged to face the ring body side end face of the left shaft, and the left shaft and the right shaft facing each other A rope pulley comprising: a concave portion provided on one of the end surfaces and a connecting means formed of a convex portion provided on the other of the facing end surfaces and fitted into the concave portion. 2. A ring body having a rope groove on a cylindrical surface,
A left shaft having the ring body pivotally attached to one end and protruding from the ring body, a right shaft whose end face is arranged to face the ring body side end face of the left shaft, and the left shaft and the right shaft facing each other A connecting means comprising a recess provided on one of the end faces and a protrusion provided on the other of the facing end faces and fitted into the recess, and from one of the left shaft and the right shaft opposite to the facing end face side. A rope pulley including a fastening means engaged with the other of the two.