阅读说明：本技术 电梯的对重块及其移动方法 (Counterweight block of elevator and moving method thereof ) 是由 田中麦平 于 2018-08-08 设计创作，主要内容包括：提供能够容易地移动的电梯的对重块。电梯的对重块具有：主体部,其具有被形成于电梯的对重框的一对槽分别引导的两端部；以及抑制部,其从所述主体部的外表面突出,在吊绳绕挂于所述主体部的状态下吊起所述主体部时,该抑制部与所述吊绳接触,由此抑制所述吊绳从所述主体部脱离。根据该结构,吊绳在绕挂于对重块的主体部的状态下吊起主体部时与抑制部接触,由此被抑制从主体部脱离。因此,能够使对重块容易地移动。(Provided is a counterweight block of an elevator capable of being easily moved. The counterweight block of elevator has: a main body part having two end parts respectively guided by a pair of grooves formed on a counterweight frame of an elevator; and a restraining portion that protrudes from an outer surface of the main body portion, and that, when the main body portion is lifted with a lifting rope wound around the main body portion, contacts the lifting rope, thereby restraining the lifting rope from being detached from the main body portion. According to this configuration, the lifting rope is prevented from coming off the main body by coming into contact with the suppressing portion when the main body is lifted while being wound around the main body of the counterweight. Therefore, the counter weight can be easily moved.)

1. A counterweight block of an elevator, wherein the counterweight block has:

a main body part having two end parts respectively guided by a pair of grooves formed on a counterweight frame of an elevator; and

and a restraining portion that protrudes from an outer surface of the main body, and that, when the main body is lifted with a lifting rope wound around the main body, contacts the lifting rope, thereby restraining the lifting rope from being detached from the main body.

2. The counterweight block of an elevator according to claim 1,

the suppression unit includes:

a base having a hole through which the lifting rope passes; and

and a fixing portion that fixes the base portion to an outer surface of the main body portion.

3. The counterweight block of an elevator according to claim 1,

the suppression unit includes:

a base part for hooking the lifting rope; and

and a fixing portion that fixes the base portion to an outer surface of the main body portion.

4. The counterweight block of an elevator according to claim 1,

the restraining part is integrally formed on a side surface of the main body part and used for hooking the lifting rope.

5. The counterweight block of an elevator according to any one of claims 1 to 4, wherein,

the suppression portion is disposed closer to one end side than a center portion of the main body portion.

6. A moving method of a counterweight block of an elevator, wherein the moving method has the steps of:

a restraining part fixing step of fixing the restraining part according to claim 2 or claim 3 to an upper surface of an uppermost counter weight of a plurality of counter weights that have both end portions that are respectively guided by a pair of grooves formed in a counterweight frame of an elevator and that are stacked in a vertical direction;

a gap forming step of forming a gap between the body portion of the uppermost counter weight and the body portion of the counter weight immediately below after the restraining portion fixing step;

a lifting rope winding step of winding the lifting rope around the main body of the counterweight block on the uppermost layer after the gap forming step; and

and a counterweight removal step of, after the rope winding step, hoisting the counterweight of the uppermost layer in a state where the rope is in contact with the restraining portion of the counterweight of the uppermost layer, and removing the counterweight of the uppermost layer from the counterweight frame.

7. A moving method of a counterweight block of an elevator, wherein the moving method has the steps of:

a gap forming step of forming a gap between a body portion of an uppermost counterweight block and a body portion of an immediately lower counterweight block among a plurality of counterweight blocks, the plurality of counterweight blocks having both end portions respectively guided by a pair of grooves formed in a counterweight frame of an elevator, and the plurality of counterweight blocks being stacked in a vertical direction;

a lifting rope winding step of winding the lifting rope around the main body of the counterweight block on the uppermost layer after the gap forming step; and

and a counterweight block removing step of, after the rope winding step, hoisting the counterweight block of the uppermost layer in a state where the rope is in contact with a restraining portion integrally formed on a side surface of a main body portion of the counterweight block of the uppermost layer, and removing the counterweight block of the uppermost layer from the counterweight frame.

8. The moving method of the weight of the elevator according to claim 6 or 7,

the weight removing step comprises the following steps: the uppermost counterweight is obliquely lifted in a state where the hoist rope is in contact with a restraining portion disposed closer to one end side than a center portion of the main body of the uppermost counterweight.

Technical Field

The invention relates to a counterweight block of an elevator and a moving method thereof.

Background

Patent document 1 discloses a method of loading a weight of an elevator. According to this loading method, the counterweight can be moved.

Documents of the prior art

Patent document

Patent document 1: japanese patent laid-open publication No. 2000-344445

Disclosure of Invention

Problems to be solved by the invention

However, in the loading method described in patent document 1, a loading device having a complicated structure is required to move the counterweight. Therefore, a complicated operation is required.

The present invention has been made to solve the above problems. The invention aims to provide a counterweight block of an elevator capable of being moved easily and a moving method thereof.

Means for solving the problems

The counterweight block of the elevator of the invention comprises: a main body part having two end parts respectively guided by a pair of grooves formed on a counterweight frame of an elevator; and a restraining portion that protrudes from an outer surface of the main body portion, and that, when the main body portion is lifted with a lifting rope wound around the main body portion, contacts the lifting rope, thereby restraining the lifting rope from being detached from the main body portion.

The method for moving the counterweight block of the elevator comprises the following steps: a restraining part fixing step of fixing the restraining part according to claim 2 or claim 3 to an upper surface of an uppermost counter weight of a plurality of counter weights that have both end portions that are respectively guided by a pair of grooves formed in a counterweight frame of an elevator and that are stacked in a vertical direction; a gap forming step of forming a gap between the body portion of the uppermost counter weight and the body portion of the counter weight immediately below after the restraining portion fixing step; a lifting rope winding step of winding the lifting rope around the main body of the counterweight block on the uppermost layer after the gap forming step; and a counterweight removal step of, after the hoist rope winding step, hoisting the counterweight of the uppermost layer in a state where the hoist rope is in contact with the suppression portion of the counterweight of the uppermost layer, and removing the counterweight of the uppermost layer from the counterweight frame.

The method for moving the counterweight block of the elevator comprises the following steps: a gap forming step of forming a gap between a body portion of an uppermost counterweight block and a body portion of an immediately lower counterweight block among a plurality of counterweight blocks, the plurality of counterweight blocks having both end portions respectively guided by a pair of grooves formed in a counterweight frame of an elevator, and the plurality of counterweight blocks being stacked in a vertical direction; a lifting rope winding step of winding the lifting rope around the main body of the counterweight block on the uppermost layer after the gap forming step; and a counterweight block removing step of, after the rope winding step, hoisting the counterweight block of the uppermost layer in a state where the rope is in contact with a restraining portion integrally formed on a side surface of a main body portion of the counterweight block of the uppermost layer, and removing the counterweight block of the uppermost layer from the counterweight frame.

Effects of the invention

According to these inventions, the lifting rope is prevented from coming off the main body by coming into contact with the suppressing portion when the main body is lifted in a state of being wound around the main body of the counterweight. Therefore, the counter weight can be easily moved.

Drawings

Fig. 1 is a configuration diagram of an elevator system to which a counterweight of an elevator in embodiment 1 is applied.

Fig. 2 is a front view of a counterweight to which a counterweight of an elevator in embodiment 1 is applied.

Fig. 3 is a plan view of counterweight blocks of the elevator in embodiment 1.

Fig. 4 is a perspective view of a weight suppressing portion of an elevator according to embodiment 1.

Fig. 5 is a perspective view of counterweight blocks of an elevator in embodiment 2.

Fig. 6 is a perspective view of counterweight blocks of an elevator in embodiment 3.

Detailed Description

The mode for carrying out the invention is explained in accordance with the drawings. In the drawings, the same or corresponding portions are denoted by the same reference numerals. Repeated explanation of this portion is appropriately simplified or omitted.

Embodiment mode 1

Fig. 1 is a configuration diagram of an elevator system to which a counterweight of an elevator in embodiment 1 is applied.

In the elevator system of fig. 1, a hoistway 1 extends through each floor of a building. A plurality of landings 2 are provided at each floor of the building. Each of the landings 2 faces the hoistway 1. Each of the plurality of landings 2 has a landing door 3.

The hoisting machine 4 is provided at an upper portion of the hoistway 1. The hoisting machine 4 has a sheave 5. The deflector pulley 6 is provided at an upper portion of the hoistway 1.

A pair of car guide rails 7 are provided in the hoistway 1. The pair of car guide rails 7 extend in the vertical direction. A pair of car guide rails 7 are parallel to each other. The pair of car guide rails 7 face each other.

A pair of counterweight guide rails 8 are provided in the hoistway 1. The pair of counterweight guide rails 8 extend in the vertical direction. A pair of counterweight guide rails 8 are parallel to each other. The pair of counterweight guide rails 8 are opposed to each other.

The main ropes 9 are wound around the sheave 5 and the deflector sheave 6.

The car 10 is supported by one side of the main rope 9. The car 10 is provided so as to be able to ascend and descend along a pair of car guide rails 7 inside the hoistway 1. The car 10 has a car door 11.

The counterweight 12 is supported on the other side of the main rope 9. The counterweight 12 is provided so as to be able to ascend and descend along the pair of counterweight guide rails 8 inside the hoistway 1. The counterweight 12 has a counterweight frame 13 and a plurality of counterweight blocks 14.

The car buffer 15 is provided at the bottom of the hoistway 1. The car buffer 15 is provided below the car 10.

The counterweight buffer 16 is provided at the bottom of the hoistway 1. The counterweight buffer 16 is disposed below the counterweight.

Next, a method of moving the weight 14 will be described with reference to fig. 2.

Fig. 2 is a front view of a counterweight to which a counterweight of an elevator in embodiment 1 is applied.

As shown in fig. 2, in each of the pair of weights 14, both end portions of the main body portion 17 are guided by a pair of grooves, not shown, formed in the counterweight frame 13. In this state, a plurality of counter weights 14 are stacked in the vertical direction. In the uppermost counter weight 14, the suppressing portion 18 is fixed to the upper surface of the body portion 17 so as to protrude upward from the upper surface of the body portion 17. At this time, the suppression portion 18 is disposed closer to one end side than the center portion of the main body portion 17.

Then, a gap is formed between the body portion 17 of the uppermost counter weight 14 and the body portion 17 of the counter weight 14 immediately below by a crowbar or the like, not shown. Then, the hoist rope 19 is wound around the body portion 17 of the uppermost counter weight 14. Then, the uppermost counter weight 14 is lifted with the hoist rope 19 in contact with the restraining portion 18 of the uppermost counter weight 14. At this time, the uppermost counter weight 14 is obliquely lifted so that one end portion side is further upward. Then, the uppermost counterweight block 14 is removed from the counterweight frame 13.

These steps are performed sequentially for a plurality of pairs of weights 14. As a result, all the counterweight blocks 14 are removed from the counterweight frame 13.

Next, the suppression portion 18 of the weight 14 will be described with reference to fig. 3.

Fig. 3 is a plan view of counterweight blocks of the elevator in embodiment 1. Fig. 4 is a perspective view of a weight suppressing portion of an elevator according to embodiment 1.

As shown in fig. 3 and 4, the suppression portion 18 has a base portion 18a and a fixing portion 18 b.

For example, the base 18a is formed by bending a plate-shaped metal. The base 18a has a horizontal plane and a vertical plane. A hole a is formed in a vertical surface of the base 18 a. The hole a is formed to allow the hanging rope 19 to pass therethrough.

The fixing portion 18b is formed of a rivet, for example. As shown in fig. 3, the fixing portion 18b is driven by a riveting machine, thereby fixing the base portion 18a to the upper surface of the main body portion 17.

According to embodiment 1 described above, the lifting rope 19 is prevented from coming off the main body 17 by coming into contact with the suppressing portion 18 when the main body 17 is lifted in a state of being wound around the main body 17 of the counterweight 14. Therefore, the counterweight 14 can be easily moved.

At this time, the hanging rope 19 hangs up the main body 17 in a state of penetrating the hole a of the suppression portion 18. Therefore, detachment from the main body 17 can be more reliably suppressed.

The suppression portion 18 is disposed closer to one end side than the center portion of the main body portion 17. Therefore, the weight 14 is lifted obliquely so that one end portion is positioned above. As a result, the counterweight 14 can be more easily removed from the counterweight frame 13.

Embodiment mode 2

Fig. 5 is a perspective view of counterweight blocks of an elevator in embodiment 2. The same or corresponding portions as those in embodiment 1 are denoted by the same reference numerals. The description of this part is omitted.

In the suppression portion 18 for the weight 14 according to embodiment 2, the base portion 18a is provided so as to be hooked by a hanging rope 19 not shown in fig. 5. Specifically, the base 18a has a projection 18 c. For example, the protruding portion 18c is formed by bending the upper end portion of the base portion 18a toward the other side of the main body portion 17.

When the main body 17 is lifted with the lifting rope 19 wound around the main body 17 of the counterweight 14, the vertical surface of the base 18a comes into contact with the lifting rope 19. At this time, the protruding portion 18c is disposed above the hanging rope 19.

According to embodiment 2 described above, when the main body 17 is lifted in a state in which the lifting rope 19 is wound around the main body 17 of the counterweight 14, the lifting rope is hooked on the base portion 18a of the suppressing portion 18, and thereby is suppressed from being detached from the main body 17. Therefore, the counterweight 14 can be easily moved.

At this time, the protruding portion 18c is disposed above the hanging rope 19. Therefore, detachment from the main body 17 can be more reliably suppressed.

Embodiment 3

Fig. 6 is a perspective view of counterweight blocks of an elevator in embodiment 3. The same or corresponding portions as those in embodiment 1 are denoted by the same reference numerals. The description of this part is omitted.

The pair of restraining portions 18 of the weight 14 according to embodiment 3 is provided so as to be hooked by a lifting rope 19 not shown in fig. 5. Specifically, the pair of restraining portions 18 are integrally formed on the proximal side surface and the distal side surface of the main body portion 17, respectively.

According to embodiment 3 described above, the pair of restraining portions 18 are integrally formed on the proximal side surface and the distal side surface of the body portion 17, respectively. Therefore, the step of fixing the restraining part 18 can be omitted when the counterweight 14 is removed. As a result, the counterweight 14 can be more easily removed from the counterweight frame 13.

The plurality of counterweight blocks 14 according to embodiment 3 are also lifted up in the same manner when they are stored in the counterweight frame 13 at the time of new installation. Therefore, the counterweight 14 can be easily accommodated in the counterweight frame 13.

In addition, when stacking the plurality of counterweight blocks 14 according to embodiment 3, the pair of restraining parts 18 of the plurality of counterweight blocks 14 may be alternately arranged at a position closer to one side of the counterweight frame 13 and a position closer to the other side of the counterweight frame 13. In this case, the weight deviation in the width direction of the counterweight 12 can be suppressed.

Industrial applicability

As described above, the counterweight block of an elevator and the method for moving the same according to the present invention can be used in an elevator system.

Description of the reference symbols

1: a hoistway; 2: a landing; 3: a landing door; 4: a traction machine; 5: a sheave; 6: a deflector wheel; 7: a car guide rail; 8: a counterweight guide rail; 9: a main rope; 10: a car; 11: a car door; 12: a counterweight; 13: a counterweight frame; 14: to the pouring weight; 15: a car buffer; 16: a counterweight buffer; 17: a main body portion; 18: a suppression unit; 18 a: a base; 18 b: a fixed part; 18 c: a protrusion; 19: a lifting rope.