JP2001316056A - Device for adjusting sheave of stretching governor rope - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a device for adjusting a sheave of stretching a governor rope capable of omitting the work of mounting adjusting a supporter even if the governor rope is extended or contracted and reducing time and labor for maintenance work. SOLUTION: A weight 9 is constituted of a flat plate 10, an upper corner part 11a of a side end 11 opposed to a governor rope 8 of this flat plate 10 and a lower corner part 12a of the other side end 12 opposed to this side end 11 are respectively cut. In this way, when the governor rope 8 is contracted to make the weight 9 rise, a trouble of the weight 9 coming into contact with the governor rope 8 can be prevented, also when the governor rope 8 is extended to lower down the weight 9, a distance from the weight 9 to a pit inner bottom of a twistway 1 can be maintained to the prescribed dimension.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a governor rope tensioning wheel adjusting device provided in an elevator shaft.

[0002]

2. Description of the Related Art FIG. 4 is a front view showing a conventional governor rope tensioning wheel adjusting device, and FIG. 5 is a front view showing a state in which the weight rises as the governor rope is reduced.

The governor rope tensioning wheel adjusting device shown in FIGS. 4 and 5 is made of a steel material, and is fixed to a guide rail 2 in a hoistway 1 by a plurality of rail clips 3.
A bracket 5 made of steel and having one end 5a rotatably attached to a rotation fulcrum P of the support 4, a governor rope tensioning wheel 6 rotatably attached to the center of the bracket 5, and the other end 5b of the bracket 5 And a lower end of the governor rope 8 is wrapped around the governor rope tensioning wheel 6. The weight 7 is formed in a substantially rectangular shape, and has a side end 7a facing the governor rope 8,
And a side end 7b opposite to the side end 7a.

In the conventional governor rope tensioning wheel adjusting device, a predetermined weight is applied to the governor rope 8 via the governor rope tensioning wheel 6 by the weight of the weight 7 while the bracket 5 is set in a horizontal state as shown in FIG. Tension is applied. However, since the hemp core of the governor rope 8 absorbs moisture in July and August when the temperature and humidity become high, the diameter of the governor rope 8 increases, and the governor rope 8 shrinks. Therefore, as shown in FIG. It rotates clockwise as the center, and in this state, a predetermined tension is applied to the governor rope 8. Conversely, in February, which is the dry season, the hemp core of the governor rope 8 dries, the diameter of the governor rope 8 becomes thinner, and the governor rope 8 expands. In this state, a predetermined tension is applied to the governor rope 8.

[0005]

In the conventional governor rope tensioning wheel adjusting device described above, when the governor rope 8 is contracted and the bracket 5 is rotated clockwise as shown in FIG. 5, the side end 7a of the weight 7 is A phenomenon in which the upper corner contacts the governor rope 8 occurs. When the governor rope 8 rotates in this state, these weights 7 and the governor rope 8
In addition, since the contact sound is generated between the brackets and the strands of the governor rope 8 are broken, the mounting height position of the support 4 is moved upward to make the bracket 5 horizontal, thereby adjusting the governor rope tensioning wheel. The height of the device needs to be adjusted.

Also, as a result of the governor rope 8 being stretched around February, which is the dry season, the bracket 5 rotates counterclockwise,
Since the lower corner of the side end 7b of the weight 7 to the bottom of the pit of the hoistway, that is, the clearance is smaller than a predetermined dimension, the mounting height position of the support 4 is moved downward to bring the bracket 5 into a horizontal state. Therefore, it is necessary to adjust the height of the governor rope tensioning wheel adjusting device.

The present invention has been made in view of such a situation in the prior art, and has as its object to adjust the mounting height of the support body even when the governor rope expands and contracts due to a change in atmospheric humidity or the like. An object of the present invention is to provide a governor rope tensioning wheel adjusting device which can be omitted, and can reduce the working time and labor during elevator maintenance.

[0008]

In order to achieve the above object, the present invention provides a support fixed to a guide rail in an elevator shaft, a bracket having one end rotatably mounted on the support, In the governor rope tensioning wheel adjusting device including a governor rope tensioning wheel rotatably attached to a center portion of the bracket and a governor rope tensioning weight fixed to the other end of the bracket, the weight is formed of a flat plate. The upper corner of the first side end facing the governor rope is cut, and the lower corner of the second side end of the flat plate facing the first side end is cut.

According to the present invention, when the governor rope is contracted and the weight rises with the rotation of the bracket, the upper corner of the first side end of the weight facing the governor rope is cut. In addition, it is possible to prevent the weight from coming into contact with the governor rope. Also, when the governor rope is extended and the weight descends with the rotation of the bracket in the opposite direction, the lower corner of the second side end of the weight which is opposed to the first side end is also cut. From the pit to the bottom of the pit of the hoistway, that is, the clearance can be maintained at a predetermined dimension. Thereby, even if the governor rope expands or contracts due to a change in atmospheric humidity, the work of adjusting the mounting height of the support can be omitted, so that the working time and labor can be reduced during elevator maintenance.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a governor rope tensioning wheel adjusting device according to the present invention will be described below with reference to the drawings.

FIG. 1 is a front view showing a governor rope tensioning wheel adjusting device according to an embodiment of the present invention, FIG. 2 is a front view of a weight provided in the embodiment, and FIG. 3 is a diagram in which the weight rises as the governor rope shrinks. It is a front view showing the state where it did. 1 and 3, the same components as those shown in FIGS. 4 and 5 are denoted by the same reference numerals.

The governor rope tensioning wheel adjusting device of this embodiment shown in FIG. 1 is different from that shown in FIGS. 4 and 5 in the configuration of the weight 9 fixed to the other end 5b of the bracket 5. The other configuration is basically the same.

The weight 9 is composed of a flat plate 10 having a weight of about 16.6 kg and a thickness of about 45 mm. The upper corner 11a of the first side end 11 of the flat plate 10 facing the governor rope 8 is cut. The first side end 11 is formed flat. In addition, the lower corner 12a of the second side end 12 facing the first side end 11 of the flat plate 10 is also cut, and the second side end 12 is formed in a curved shape. In addition, by chamfering all corners, an operator holding the weight 10 is prevented from touching the corners and being injured.

Further, a dimension L1 from the upper end of the flat plate 10 to the center line X in the vertical direction of the flat plate 10 and a size L2 from the center line X to the lower end are set substantially equal, and the longest lateral dimension L3 is reduced to about 192 mm. Set the longest vertical dimension L4 to about 310m
m. Also, two mounting holes 13 having an inner diameter of about 13 mm on the vertical center line X of the flat plate 10,
A weight 9 is inserted by inserting fasteners 15 and 16 into these mounting holes 13 and 14, respectively.
Is detachably attached to the bracket 5.

In the governor rope tensioning wheel adjusting device of this embodiment, when the governor rope 8 is contracted and the weight 9 rises with the rotation of the bracket 5, the first side end 11 of the flat plate 10 constituting the weight 9 is provided. Since the upper corner portion 11a is cut, an accident in which the weight 9 contacts the governor rope 8 can be prevented. Conversely, when the governor rope 8 is extended and the weight 9 is lowered with the rotation of the bracket 5 in the opposite direction, the lower corner 12a of the second side end 12 of the flat plate 10
Is also cut, so that the distance from the weight 9 to the bottom of the pit of the hoistway 1, that is, the clearance can be maintained at a predetermined size.

In the governor rope tensioning wheel adjusting device of the present embodiment configured as described above, even if the governor rope 8 expands and contracts, the operation of adjusting the mounting height of the support 4 can be omitted, so that the operation time and labor are reduced during elevator maintenance. Can be achieved.

[0017]

As described above, according to the present invention, even if the governor rope expands and contracts due to a change in atmospheric humidity, etc., the work for adjusting the mounting height of the support can be omitted. Shortening and reduction of labor can be achieved. Therefore, there is an effect that the efficiency of elevator maintenance work can be improved.

[Brief description of the drawings]

FIG. 1 is a front view showing a governor rope tensioning wheel adjusting device according to an embodiment of the present invention.

FIG. 2 is a front view of a weight provided in the embodiment.

FIG. 3 is a front view showing a state in which the weight provided in the present embodiment has risen with the reduction of the governor rope.

FIG. 4 is a front view showing a conventional governor rope tensioning wheel adjusting device.

FIG. 5 is a front view showing a state in which a conventional weight is raised with a reduction in governor rope.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Hoistway 2 Guide rail 4 Support 5 Bracket 6 Governor rope tensioning wheel 9 Weight 10 Flat plate 11 1st side end 11a Upper corner 12 Second side 12a Lower corner 13, 14 Mounting holes

Claims (3)

[Claims] 1. A support fixed to a guide rail in an elevator hoistway, a bracket having one end rotatably mounted on the support, a governor rope tensioning wheel rotatably mounted at the center of the bracket, In a governor rope tensioning wheel adjusting device having a governor rope tensioning weight fixed to the other end of the bracket, the weight is formed of a flat plate, and an upper corner of a first side end of the flat plate facing the governor rope is provided. A governor rope tensioning wheel adjusting device, wherein a cut is made and a lower corner portion of a second side end facing the first side end of the flat plate is cut. 2. The governor rope tensioning wheel adjusting device according to claim 1, wherein the second side end of the flat plate is formed in a curved shape, and the first side end of the flat plate is formed in a flat shape. . 3. The governor rope tensioning wheel adjusting device according to claim 1, wherein two mounting holes for mounting to the bracket are provided on a vertical center line of the weight.