JP6197802B2 - Lock-down device holding tool and position adjustment method for balancing vehicle device - Google Patents

Description

  The present invention relates to a lockdown device holding tool and a position adjustment method for a counterbalanced vehicle device.

  2. Description of the Related Art Conventionally, an elevator equipped with a balance wheel device and a lockdown device is known. A balance wheel is provided inside the housing of the balance wheel device. A balancing rope attached to an elevator car and a balancing weight is wound around the balancing car. The lockdown device prevents a rapid rise of the counterbalance device. As a balanced vehicle apparatus and a lockdown apparatus, there exist some which were described in the following patent document 1, for example.

JP-A-8-67454

  When the balancing vehicle device is lowered due to the elongation of the balancing rope or the like, it is necessary to pull up the balancing vehicle device. If the lockdown device is activated when pulling up the balance wheel device, it will be very difficult to return. In order to adjust the position of the balance wheel device while avoiding the operation of the lockdown device, a long work time or a plurality of workers are required.

  The present invention has been made to solve the above problems. An object of the present invention is to provide a lockdown device holding tool and a position adjustment method for a balance wheel device that can prevent the lockdown device from being erroneously operated.

A lockdown device holding tool according to the present invention is a holding tool for holding a relative position of a lockdown device with respect to an elevator balancing vehicle device, and is attached to a bolt fixed to a housing of the balancing vehicle device. The upper part supported by the upper surface of the part, the lower part which supports the lower end of the projection part which a lockdown device has, and the side part which connects the upper part and the lower part were provided , and the upper part, the lower part, and the side part were formed in one. Is.

  In the position adjustment method for the balance wheel device according to the present invention, the upper end of the protrusion of the elevator lockdown device contacts the lower end of the adjustment bolt attached to the bolt mounting portion fixed to the housing of the balance wheel device. A step of pulling up the lockdown device until the top, a step of attaching the lockdown device holding tool so that the upper portion is supported by the upper surface of the bolt mounting portion and the lower portion connected to the upper portion by the side portion supports the lower end of the projection portion, And a step of moving the car to a height different from the counterweight, and a step of lifting the counterweight device by tightening a balance rope attached to the counterweight.

  The upper part of the lockdown device holding tool according to the present invention is supported on the upper surface of the bolt mounting portion fixed to the housing of the counterbalanced vehicle device. A lower part supports the lower end of the projection part which a lockdown apparatus has. The side part connects the upper part and the lower part. For this reason, according to this invention, it can prevent operating a lockdown apparatus accidentally.

It is a block diagram which shows an example of the elevator provided with the balance vehicle apparatus. It is a side view of a balanced vehicle device. It is a front view of a balanced vehicle device. It is a perspective view of the lockdown device holding tool in Embodiment 1 of the present invention. It is a three-view figure of the lockdown device holding tool in Embodiment 1 of the present invention. It is a 1st figure for demonstrating the attachment method of the lockdown apparatus holding tool in Embodiment 1 of this invention. It is a 2nd figure for demonstrating the attachment method of the lockdown apparatus holding tool in Embodiment 1 of this invention. It is a 3rd figure for demonstrating the attachment method of the lockdown apparatus holding tool in Embodiment 1 of this invention. It is a 4th figure for demonstrating the attachment method of the lockdown apparatus holding tool in Embodiment 1 of this invention.

  The present invention will be described in detail with reference to the accompanying drawings. In each figure, the same or corresponding parts are denoted by the same reference numerals. The overlapping description will be simplified or omitted as appropriate.

Embodiment 1 FIG.
Drawing 1 is a lineblock diagram showing an example of an elevator provided with a balance car device. As shown in FIG. 1, the elevator includes a car 1, a counterweight 2, and a hoisting machine 3. The car 1 and the counterweight 2 are provided in the hoistway. A hoisting rope 4 is wound around the hoisting machine 3. The car 1 and the counterweight 2 are suspended by a hoisting rope 4. The car 1 and the counterweight 2 are raised and lowered when the hoisting machine 3 is driven.

  As shown in FIG. 1, the elevator includes a balancing vehicle device 5. The balance wheel device 5 includes a housing 6 and a balance wheel 7. The balance wheel 7 is provided inside the housing 6. A balancing rope 8 is wound around the balancing wheel 7. One end of the balancing rope 8 is attached to the car 1. The one end of the balancing rope 8 is attached, for example, near the lower end of the side surface of the car 1. The other end of the balancing rope 8 is attached to the balancing weight 2. The other end of the balancing rope 8 is attached, for example, near the lower end of the side surface of the counterweight 2. A rail 10 is fixed vertically to the floor surface 9 in the hoistway. The balancing vehicle device 5 can move up and down along the rail 10.

  FIG. 2 is a side view of the balancing vehicle device. As shown in FIG. 2, the rail 10 includes a first rail 10a and a second rail 10b. The second rail 10b faces the first rail 10a with the balancing vehicle device 5 interposed therebetween. The balancing vehicle device 5 includes a plurality of guide portions 11. The guide part 11 is fixed to the housing 6. The guide part 11 is movable with respect to the first rail 10a or the second rail 10b. The housing 6 moves up and down along the rail 10 via the guide portion 11. Hereinafter, of the outer surface of the housing 6, the surface facing the first rail 10 a is referred to as “front surface”, and the surface facing the second rail 10 b is referred to as “back surface”.

  As shown in FIG. 2, a lockdown device 12 is attached to the rail 10. A first lockdown device 12a is attached to the first rail 10a. A second lockdown device 12b is attached to the second rail 10b. The second lockdown device 12b is attached at the same height as the first lockdown device 12a.

  FIG. 3 is a front view of the balancing vehicle device. FIG. 3 shows the balancing vehicle device 5 and the first lockdown device 12a viewed from the first rail 10a side shown in FIG.

  As shown in FIG. 3, a bolt mounting portion 13, a quarie fitting 14, and a switch 15 are provided on the front surface of the housing 6. The bolt attachment portion 13 is, for example, a horizontal portion of an L-shaped member that is fixed to the front surface of the housing 6 at a vertical portion. Two bolt mounting portions 13 are provided on the front surface of the housing 6. For example, the two bolt mounting portions 13 are disposed symmetrically about the first rail 10a as viewed from the front side. An adjustment bolt 16 is attached to each bolt attachment portion 13. That is, two adjustment bolts 16 are provided on the front surface of the housing 6. The adjustment bolt 16 is movable in the vertical direction with respect to the bolt mounting portion 13 by rotating. The quare fitting 14 is provided at a position lower than the bolt mounting portion 13. For example, the quarie fitting 14 is disposed on the right side of the first rail 10a when viewed from the front side. The switch 15 is provided at a position lower than the bolt mounting portion 13 and higher than the quarie fitting 14. For example, the switch 15 is disposed on the left side of the first rail 10a when viewed from the front side.

  In addition, the adjustment bolt 16 attached to the two bolt attachment parts 13, the quarie metal fitting 14, the switch 15, and the bolt attachment part 13 is provided also in the back surface of the housing | casing 6 which is not shown in FIG. However, the switch 15 on the back surface of the housing 6 is provided at a position higher than the switch 15 on the front surface of the housing 6. The back surface of the housing 6 is formed in the same manner as the front surface except for the position where the switch 15 is provided. Hereinafter, the switch 15 on the front surface of the housing 6 is also referred to as “safety SW”. Further, the switch 15 on the rear surface of the housing 6 is also referred to as “forecast SW”.

  As shown in FIG. 3, the first lockdown device 12 a includes a shoe 17, a spring 18, a roller 19, and a protrusion 20. For example, the shoe 17 and the spring 18 are disposed on the right side of the first rail 10a when viewed from the front side. The shoe 17 is pressed against the first rail 10 a from the right side by a spring 18. The first lockdown device 12a is supported on the first rail 10a by a frictional force acting between the shoe 17 and the first rail 10a. For this reason, the 1st lockdown apparatus 12a is movable with respect to the 1st rail 10a by applying force to an up-down direction. The roller 19 is provided at a position lower than the shoe 17. For example, the roller 19 is arranged on the right side of the first rail 10a when viewed from the front side. In other words, the roller 19 is disposed on the same side as the shoe 17 and the quarie fitting 14 with respect to the first rail 10a. The protrusion 20 is formed to protrude to the left from the upper end of the first lockdown device 12a, for example. That is, the protrusion 20 is disposed on the same side as the switch 15 with respect to the first rail 10a. In the left-right direction, the protruding portion 20 is shorter than the bolt mounting portion 13. In the left-right direction, the left end of the left bolt mounting portion 13 is located on the left side of the left end of the protrusion 20.

  In addition, the 2nd lockdown apparatus 12b which is not shown in FIG. 3 is formed similarly to the 1st lockdown apparatus 12a. The second lockdown device 12b is movable with respect to the second rail 10b by applying a force in the vertical direction.

  As the balance wheel device 5 descends, the lower end of the adjustment bolt 16 contacts the lockdown device 12. At this time, the lower end of the right adjustment bolt 16 is in contact with the upper end of the lockdown device 12. The lower end of the left adjustment bolt 16 contacts the upper end of the protrusion 20. When the weight of the balancing vehicle device 5 is applied to the lockdown device 12 via the adjustment bolt 16, the lockdown device 12 moves downward with respect to the first rail 10a. That is, the lockdown device 12 descends together with the balancing vehicle device 5 when the balancing vehicle device 5 descends.

  On the other hand, when the balancing vehicle device 5 is raised, the lockdown device 12 does not move. As the balance wheel device 5 rises, the switch 15 contacts the lower end of the protrusion 20. That is, when the balance wheel device 5 rises, the switch 15 is turned on by contacting the protrusion 20. Since the forecast SW of the switch 15 is higher than the safety SW, when the balancing vehicle device 5 is raised, the forecast SW is entered first, and then the safety SW is entered. When the forecast SW is entered, for example, the elevator control device or the like detects that the balancing vehicle device 5 has risen. When the safety SW is turned on, the elevator is turned off. After the switch 15 is turned on, when the balancing vehicle device 5 further rises, the roller 19 bites into the quarie fitting 14. When the roller 19 bites into the squeeze fitting 14, the counterbalance device 5 is prevented from rising.

  When the balancing vehicle device 5 is lowered due to the elongation of the balancing rope 8 or the like, position adjustment work is performed to raise the balancing vehicle device 5. In the position adjustment work of the balance wheel device 5, an operator who rides on the car 1 pulls up the balance wheel device 5 by tightening the balance rope 8 on the balance weight 2 side. Conventionally, in order to pull up the balance vehicle device 5 while avoiding the operation of the lockdown device 12, for example, not only the operator tightening the balance rope 8, but also the lockdown device 12 on the floor surface 9 in the hoistway. It was necessary to have other workers to manually lift the. Conventionally, a worker who performs position adjustment work by one person moves to the floor surface 9 in the hoistway to check the state of the lockdown device 12 every time the balancing rope 8 is slightly tightened, for example. It was.

  FIG. 4 is a perspective view of the lockdown device holding tool in the first embodiment. As shown in FIG. 4, the lockdown device holding tool 50 includes an upper part 51, a side part 52, and a lower part 53. A U-shaped cutout 54 is formed at one end of the upper portion 51. The other end of the upper part 51 is continuous perpendicularly to one end of the side part 52. The other end of the side portion 52 is perpendicular to one end of the lower portion 53. That is, the side part 52 connects the other end of the upper part 51 and one end of the lower part 53. The upper surface of the lower portion 53 faces the lower surface of the upper portion 51 in parallel. The upper part 51, the side part 52, and the lower part 53 are integrally formed, for example. The lockdown device holding tool 50 is formed, for example, by bending a single plate-like member twice. The lockdown device holding tool 50 is made of, for example, a material such as iron.

  FIG. 5 is a three-side view of the lockdown device holding tool in the first embodiment. Hereinafter, for the sake of convenience, the length in the left-right direction when the side portion 52 is directed to the left side is referred to as “width”, the length in the front-rear direction is referred to as “depth”, and the length in the vertical direction is referred to as “height”.

  As shown in FIG. 5, the upper part 51, the side part 52, and the lower part 53 are formed with the same depth. Moreover, the upper part 51, the side part 52, and the lower part 53 are formed in the same thickness. The lower portion 53 is formed such that the width from one end to the other end thereof is shorter than the width from one end to the other end of the upper portion 51. The notch 54 is formed in front of the depth center of the upper portion 51.

  The depth of the upper part 51, the side part 52, and the lower part 53 is 50 mm, for example. The thickness of the upper part 51, the side part 52, and the lower part 53 is 5 mm, for example. The width of the lower surface of the upper part 51 is 40 mm, for example. The width of the upper surface of the lower part 53 is, for example, 30 mm. The width of the notch 54 is, for example, 20 mm. The left end portion of the cutout portion 54 is formed in a semicircular shape with a radius of 6 mm, for example. The depth of the notch 54 is 12 mm, for example. The length from the near end of the notch 54 to the near end of the upper portion 51 is, for example, 10 mm. The length from the back end of the notch 54 to the back end of the upper portion 51 is, for example, 28 mm. That is, the notch 54 is formed in a range from the position on the near side 10 mm to the position on the back side 28 mm in the front-rear direction of the upper portion 51, for example.

  FIG. 6 is a first diagram for explaining a method of attaching the lockdown device holding tool in the first embodiment. FIG. 7 is a second diagram for explaining the method of attaching the lockdown device holding tool in the first embodiment. FIG. 8 is a third diagram for explaining the method of attaching the lockdown device holding tool in the first embodiment. 6 and 7 are enlarged views of the balancing vehicle device 5 and the first lockdown device 12a as seen from the front side. FIG. 8 is a perspective view showing a state in which the lockdown device holding tool 50 is attached to the first lockdown device 12a. The switch 15 shown in FIGS. 6, 7 and 8 is a safety SW. Hereinafter, a method for attaching the lockdown device holding tool 50 to the first lockdown device 12a will be described with reference to FIGS.

  First, the first lockdown device 12 a is raised until the upper end of the protrusion 20 contacts the lower end of the adjustment bolt 16. Next, as shown in FIG. 6, the lockdown device holding tool 50 is moved from the left to the right with the side portion 52 facing the left side. At this time, as shown in FIG. 7, the lockdown device holding tool 50 is arranged so that the left bolt mounting portion 13 and the protrusion 20 are fitted between the upper portion 51 and the lower portion 53. At this time, the lockdown device holding tool 50 is arranged so that the adjustment bolt 16 is passed through the notch 54. That is, the lockdown device holding tool 50 is installed so as to be inserted from the side of the first lockdown device 12a. After that, as shown in FIG. 8, the upper part 51 is fixed to the left bolt mounting part 13 with the fixture 55 using the adjustment bolt 16. The fixture 55 is, for example, a nut, a spacer, a washer, or the like. As indicated by the broken line in FIG. 6, the lockdown device holding tool 50 does not interfere with the case of the safety SW during installation.

  The distance from the lower end of the protrusion 20 in contact with the adjustment bolt 16 to the upper surface of the left bolt mounting portion 13 is adjusted by rotating the adjustment bolt 16. The distance is adjusted to a height below the inner side of the side portion 52 before the lockdown device holding tool 50 is attached. The inner height of the side portion 52 is the height from the upper surface of the lower portion 53 to the lower surface of the upper portion 51.

  As shown in FIG. 8, when the lockdown device holding tool 50 is attached, the upper portion 51 is supported on the upper surface of the left bolt attaching portion 13. The lower part 53 supports the lower end of the protrusion 20. The side part 52 connects the upper part 51 and the lower part 53. Thus, the first lockdown device 12a is connected to the front side of the counterbalance device 5 by the lockdown device holding tool 50.

  For example, the upper part 51 and the lower part 53 are formed so that the depth matches the length of the bolt mounting part 13 and the protrusion part 20 in the front-rear direction. The upper part 51 is formed so that the depth of the part on the back side from the notch part 54 is as long as possible, for example, in a range where it does not contact the vertical part of the L-shaped member having the bolt attachment part 13. The notch 54 is formed at a position where the adjustment bolt 16 passes in the front-rear direction of the upper portion 51 with the lock-down device holding tool 50 attached. The notch 54 is formed so that the depth is equal to or greater than the thickness of the adjustment bolt 16.

  The upper part 51 is formed so that the width matches the length of the bolt mounting part 13 in the left-right direction, for example. For example, the lower portion 53 is formed so that the width matches the length of the protruding portion 20 in the left-right direction. The lower part 53 is formed so as to have a shorter width than the upper part 51. For example, the width of the upper portion 51 and the width of the lower portion 53 are set such that the left end of the side portion 52 does not interfere with the case of the switch 15 in a state in which the lockdown device holding tool 50 is attached. For example, the notch 54 is formed such that the center axis of the adjustment bolt 16 passes through the center of the semicircular left end with the lock-down device holding tool 50 attached.

  FIG. 9 is a fourth diagram for illustrating the method of attaching the lockdown device holding tool in the first embodiment. FIG. 9 is an enlarged view of the balancing vehicle device 5 and the second lockdown device 12b as seen from the back side. The switch 15 shown in FIG. 9 is a forecast SW.

  As shown in FIG. 9, the forecast SW is provided at a height close to the lower end of the adjustment bolt 16. The lockdown device holding tool 50 interferes with the case of the forecast SW when attached to the second lockdown device 12b. For this reason, the lockdown device holding tool 50 is attached to the second lockdown device 12b, for example, in a state where the case of the forecast SW is once shifted. The forecast SW is returned to the original position after the lockdown device holding tool 50 is attached, for example. The method for attaching the lockdown device holding tool 50 to the second lockdown device 12b is the same as that for the first lockdown device 12a except for the work for avoiding the interference with the forecast SW. In this way, the second lockdown device 12b is connected to the back side of the counterbalance device 5 by the lockdown device holding tool 50, as shown in FIG.

  The position adjustment method of the counterbalance device using the lockdown device holding tool 50 includes, for example, a first step, a second step, a third step, and a fourth step. In the first step, until the upper end of the protrusion 20 of the lock-down device 12 of the elevator comes into contact with the lower end of the adjustment bolt 16 attached to the bolt attachment portion 13 fixed to the housing 6 of the balancing vehicle device 5, The lockdown device 12 is pulled up. In the second step, the lock-down device holding tool 50 is attached so that the upper part 51 is supported on the upper surface of the bolt attaching part 13 and the lower part 53 connected to the upper part 51 by the side part 52 supports the lower end of the protruding part 20. . In the second step, one lockdown device holding tool 50 is attached to each of the first lockdown device 12a and the second lockdown device 12b. In the third step, the car 1 is boarded and the car 1 is moved to a height that is different from the counterweight 2. The height that passes the counterweight 2 is, for example, the height at which the upper end of the car 1 and the lower end of the counterweight 2 are aligned. In the fourth step, the balancing vehicle device 5 is pulled up by climbing on the car 1 and tightening the balancing rope 8 attached to the counterweight 2.

  In the first embodiment, the upper portion 51 of the lockdown device holding tool 50 is supported on the upper surface of the bolt mounting portion 13 fixed to the housing 6 of the counterbalance vehicle device 5. The lower portion 53 supports the lower end of the protrusion 20 included in the lockdown device 12. The side part 52 is formed so as to connect the upper part 51 and the lower part 53. By connecting the balancing vehicle device 5 and the lockdown device 12 using the lockdown device holding tool 50, the lockdown device 12 can be raised as the balancing vehicle device 5 rises. In other words, the lockdown device holding tool 50 is a holding tool that holds the relative position of the lockdown device 12 with respect to the elevator balancing device 5. According to the present invention, it is possible to prevent the lockdown device 12 from being erroneously operated when pulling up the balancing vehicle device 5. As a result, for example, a position adjustment operation that conventionally takes two hours when performed by two persons can be completed in about one hour even when performed by one person. As a result, the efficiency of the position adjustment work of the balancing vehicle device 5 can be improved.

  In the first embodiment, a switch 15 is provided on the surface of the housing 6 on which the bolt mounting portion 13 is fixed. The lower end of the protrusion 20 is a portion that contacts the switch 15 from above when the counterbalance device 5 moves upward relative to the lockdown device 12. A cutout portion 54 through which the adjustment bolt 16 attached to the bolt attachment portion 13 passes is formed in the upper portion 51 of the lockdown device holding tool 50. The upper portion 51 is fixed to the bolt mounting portion 13 by the adjustment bolt 16 and the fixture 55 in a state where the adjustment bolt 16 passes through the notch portion 54. That is, according to the present invention, the lockdown device 12 is connected to the balancing vehicle device 5 by using the configuration that the balancing vehicle device 5 and the lockdown device 12 are originally provided. For this reason, according to this invention, the lockdown apparatus holding tool 50 which improves the efficiency of the position adjustment operation | work of a balanced vehicle apparatus with a simpler structure is realizable.

  In the first embodiment, the lockdown device holding tool 50 is integrally formed from one member, for example. The lockdown device holding tool 50 is installed so as to be inserted from the side of the lockdown device 12 when attached. For this reason, according to the present invention, it is possible to realize the lock-down device holding tool 50 having high strength and easy attachment.

  In Embodiment 1, the upper part 51 and the lower part 53 are formed, for example, so that the depth matches the length in the front-rear direction of the bolt attachment part 13 and the protrusion part 20. The upper part 51 is formed so that the width matches the length of the bolt mounting part 13 in the left-right direction, for example. For example, the lower portion 53 is formed so that the width matches the length of the protruding portion 20 in the left-right direction. That is, the lockdown device holding tool 50 is formed so that the area in contact with the bolt mounting portion 13 and the protrusion 20 is as large as possible. For this reason, according to this invention, the lockdown apparatus holding tool 50 with high intensity | strength is realizable.

  The lockdown device holding tool 50 in the present invention is not limited to the one described in the first embodiment. For example, the lock-down device holding tool 50 may have the same width of the upper portion 51 and the lower portion 53. For example, the lock-down device holding tool 50 may be one in which the width of the upper portion 51 is shorter than the width of the lower portion 53. For example, the lock-down device holding tool 50 may be different in the depth of the upper portion 51 and the depth of the lower portion 53. For example, the lock-down device holding tool 50 may not have the notch 54 formed therein. Even in these cases, if the upper portion 51 is supported by the bolt mounting portion 13 and the lower portion 53 is formed in a shape that supports the protruding portion 20, the lock-down device holding tool 50 can be used. As the device 5 is raised, the lockdown device 12 can be raised.

DESCRIPTION OF SYMBOLS 1 Car 2 Counterweight 3 Hoisting machine 4 Hoisting rope 5 Balancer device 6 Case 7 Balancer 8 Balancer rope 9 Floor 10 Rail 10a First rail 10b Second rail 11 Guide part 12 Lockdown device 12a 1st lockdown device 12b 2nd lockdown device 13 bolt mounting part 14 quare fitting 15 switch 16 adjustment bolt 17 shoe 18 spring 19 roller 20 protrusion 50 lockdown device holding tool 51 upper part 52 side part 53 lower part 54 notch part 55 Fixture

Claims (3)

A holding tool for holding the relative position of the lockdown device with respect to the elevator balancing device,
An upper portion supported by the upper surface of the bolt mounting portion fixed to the housing of the balance wheel device;
A lower part that supports the lower end of the protrusion of the lockdown device;
A side part connecting the upper part and the lower part;
Equipped with a,
A lockdown device holding tool in which the upper part, the lower part and the side part are integrally formed . A switch is provided on the surface of the housing where the bolt mounting portion is fixed,
The lower end of the protrusion is a portion that contacts the switch from above when the counterbalance device moves upward relative to the lockdown device,
The upper part is formed with a notch through which an adjustment bolt attached to the bolt attachment part passes,
2. The lockdown device holding tool according to claim 1, wherein the upper portion is fixed to the bolt attachment portion by the adjustment bolt and a fixture in a state where the adjustment bolt passes through the notch portion. Pulling up the lockdown device until the upper end of the protrusion of the elevator lockdown device contacts the lower end of the adjustment bolt attached to the bolt mounting portion fixed to the housing of the counterbalanced vehicle device;
Attaching the lockdown device holding tool so that the upper part is supported on the upper surface of the bolt attaching part and the lower part connected to the upper part by the side part supports the lower end of the protruding part;
A process of moving the basket to a height that passes the counterweight,
A step of pulling up the balancing vehicle device by tightening a balancing rope attached to the balancing weight;
For adjusting the position of a counterbalanced vehicle apparatus.

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