Elevator hoistway equipment mounting device

Abstract

Provided is an elevator shaft equipment mounting device that can suppress changes in the position of the shaft equipment relative to the shaft structure. [Solution] In an elevator hoistway equipment mounting device 4, a landing plate 12 is attached to a mounting arm 41. A guide rail 2 is held by a retainer 26 to a rail bracket 24 fixed to a wall 13 of a hoistway 1. An arm mounting fixture 42 mounts the mounting arm 41 to the guide rail 2. A connector 43 connects the mounting arm 41 to the rail bracket 24. The retainer 26 allows the guide rail 2 to slide vertically relative to the rail bracket 24. The arm mounting fixture 42 allows the mounting arm 41 to slide vertically relative to the guide rail 2. The connector 43 keeps the vertical distance between the rail bracket 24 and the mounting arm 41 constant.

Description

[Technical field]

[0001] The present disclosure relates to elevator hoistway equipment mountings. [Background technology]

[0002] Patent Document 1 discloses an elevator in which a floor-landing detection plate is installed for each floor in the elevator shaft and a floor-landing detector is attached to the car in order to land the car on each floor of the building. When the floor-landing detector detects the floor-landing detection plate corresponding to the car's destination floor, the car lands on the destination floor according to the position of the floor-landing detection plate detected by the floor-landing detector. Each floor-landing detection plate is attached via a bracket to a guide rail that guides the car. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2021-195184 A Summary of the Invention [Problem to be solved by the invention]

[0004] In an elevator, the positional relationship between the hoistway structure and the guide rail changes in the vertical direction over time. For example, whether the hoistway structure is rigid or flexible, inter-floor compression occurs in the building over time. When inter-floor compression occurs in the building, the positional relationship between the hoistway structure and the guide rail changes in the vertical direction. In addition, when the hoistway structure is flexible, the building may vibrate significantly due to wind pressure, long-period earthquake motion, etc., which may cause the positional relationship between the hoistway structure and the guide rail to change in the vertical direction.

[0005] In the conventional elevator disclosed in Patent Document 1, each floor-landing detection plate is attached to the guide rail via a bracket. Therefore, if the positional relationship between the structure of the elevator shaft and the guide rail changes in the vertical direction, each floor-landing detection plate may interfere with fixed equipment in the elevator shaft. In addition, since the position of the floor-landing detection plate relative to the floor surface of the landing at each floor changes in the vertical direction, the position of the floor surface of the car when it arrives at the destination floor is shifted in the vertical direction from the position of the floor surface of the landing at the destination floor.

[0006] The present disclosure is devised to solve the above-mentioned problems, and aims to provide an elevator shaft equipment mounting device that can suppress changes in the position of the shaft equipment relative to the shaft structure. [Means for solving the problem]

[0007] The elevator hoistway equipment mounting device according to the present disclosure comprises a mounting arm to which hoistway equipment is attached, an arm mounting fixture that attaches the mounting arm to a guide rail that is held by a holder to a rail bracket that is fixed to a hoistway structure, and a connector that connects the mounting arm to the rail bracket, wherein the holder allows the guide rail to slide vertically relative to the rail bracket, the arm mounting fixture allows the mounting arm to slide vertically relative to the guide rail, and the connector keeps the vertical distance between the rail bracket and the mounting arm constant. Effect of the Invention

[0008] According to the present disclosure, it is possible to suppress changes in the position of hoistway equipment relative to the hoistway structure. [Brief description of the drawings]

[0009] [Figure 1] FIG. 1 is a schematic diagram showing an elevator according to a first embodiment. [Diagram 2] FIG. 2 is a front view showing the elevator equipment mounting device of FIG. [Diagram 3]FIG. 11 is a front view showing an elevator shaft equipment mounting device according to a second embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0010] The embodiments for carrying out the subject of the present disclosure will be described with reference to the attached drawings. In each drawing, the same or corresponding parts are given the same reference numerals, and duplicated descriptions are appropriately simplified or omitted. Note that the subject of the present disclosure is not limited to the following embodiments, and any component of the embodiment may be modified or omitted within the scope of the gist of the present disclosure.

[0011] Embodiment 1 FIG. 1 is a schematic diagram showing an elevator according to the first embodiment. In the figure, a pair of guide rails 2 are arranged in the vertical direction in a hoistway 1 provided in a building. In this embodiment, the pair of guide rails 2 are placed on the bottom of the hoistway 1 and arranged in the hoistway 1. A car 3 moves in the vertical direction in the hoistway 1 while being guided by each of the pair of guide rails 2 by the driving force of a driving device (not shown). In this embodiment, a hoist is installed in the hoistway 1 as a driving device, and a rope (not shown) for suspending the car 3 is wound around a driving sheave of the hoist. As a result, in this embodiment, the driving sheave rotates due to the driving force of the hoist, and the car 3 moves in the vertical direction.

[0012] The drive device is controlled by a control device (not shown). The car 3 can land on each of a plurality of floors in a building by controlling the drive device by the control device. On each floor, the position where the car 3 lands, i.e., the landing position of the car 3, is set based on the height FL of the floor surface of the landing. When the car 3 lands on any of the floors, i.e., when the car 3 is stopped at any of the landing positions on any of the floors, the height of the floor surface 31 of the car 3 coincides with the height FL of the floor surface of the landing at the floor where the car 3 lands.

[0013] The car 3 is provided with a floor landing detector 11. In this embodiment, the car 3 is provided with the floor landing detector 11 on its side surface.

[0014] In the hoistway 1, a plurality of landing plates 12 are arranged at intervals in the vertical direction as hoistway equipment. The landing plates 12 are individually arranged in the hoistway 1 corresponding to the landing positions of the car 3 on each floor. Each landing plate 12 is arranged along the vertical direction. When the car 3 is landed on any of the floors, the landing detector 11 faces the landing plate 12 corresponding to the floor on which the car 3 is landed.

[0015] The landing detector 11 detects the landing plate 12 when facing the landing plate 12. When the landing detector 11 detects the landing plate 12, it generates a detection signal corresponding to the detected landing plate 12. When the control device receives the detection signal from the landing detector 11, it identifies a landing position corresponding to the landing plate 12 based on the detection signal generated by the landing detector 11. The control device controls the drive device to stop the car 3 at the identified landing position. As a result, the car 3 lands at the destination floor by matching the height of the floor surface 31 of the car 3 to the height FL of the floor surface of the hall at the destination floor.

[0016] Each guide rail 2 has a plurality of rail members 21. In each guide rail 2, the plurality of rail members 21 are joined together in the vertical direction. Each guide rail 2 is held by a plurality of rail receivers 22 fixed to the hoistway 1. The plurality of rail receivers 22 are arranged at intervals from one another in the vertical direction. In this embodiment, the number of rail receivers 22 that hold one rail member 21 in each guide rail 2 is two.

[0017] A plurality of hoistway equipment mounting devices 4 are attached to one of the guide rails 2. A landing plate 12 is individually attached to each hoistway equipment mounting device 4. That is, each landing plate 12 is individually attached to one of the guide rails 2 via a hoistway equipment mounting device 4. Each hoistway equipment mounting device 4 is connected to a rail support 22 selected from the plurality of rail supports 22 in accordance with the position of each landing plate 12.

[0018] Fig. 2 is a front view showing the elevator equipment mounting device 4 of Fig. 1. Each rail receiver 22 has a fixing bracket 23 and a rail bracket 24.

[0019] The fixing bracket 23 is fixed to a wall 13 of the hoistway 1. The wall 13 of the hoistway 1 is a structural member of the hoistway 1. In this embodiment, the fixing bracket 23 is fixed to the wall 13 of the hoistway 1 by a plurality of anchor bolts 25.

[0020] The rail bracket 24 is fixed to the fixed bracket 23. Therefore, the rail bracket 24 is fixed to the wall 13 of the hoistway 1 via the fixed bracket 23. In this embodiment, the rail bracket 24 is fixed to the fixed bracket 23 by welding.

[0021] In each rail receiver 22, a rail bracket 24 receives the guide rail 2. In each rail receiver 22, the guide rail 2 is held to the rail bracket 24 by a holder 26.

[0022] The retainer 26 has a pair of rail clips 261 and a pair of fasteners 262. Each rail clip 261 is individually attached to the rail bracket 24 by each fastener 262. Each fastener 262 has a bolt and a nut. The guide rail 2 is sandwiched between each rail clip 261 and the rail bracket 24. Each rail clip 261 individually presses the guide rail 2 against the rail bracket 24 by the tightening force of each fastener 262. In this way, the retainer 26 holds the guide rail 2 to the rail bracket 24.

[0023] Here, the vertical dimensions of a building change over time due to floor compression, etc. Floor compression is a phenomenon in which the distance between the floor surfaces of the landings on each floor of a building shrinks in the vertical direction. When the vertical dimensions of a building change, the dimensions of the wall 13 formed as a structure of the elevator shaft 1 also change in the vertical direction in response to the change in the dimensions of the building.

[0024] Since each rail support 22 is fixed to the wall 13 of the elevator shaft 1, the position of each rail support 22 changes according to the change in the position of the floor surface of the landing on each floor. Therefore, the positional relationship between each rail support 22 and the floor surface of the landing on each floor is unlikely to change even if the dimensions of the building change.

[0025] In contrast, the dimensions of each guide rail 2 do not change even if the dimensions of the building change. Therefore, if the dimensions of the building change in the vertical direction, the positional relationship between each guide rail 2 and the floor surface of the landing on each floor changes in the vertical direction.

[0026] Furthermore, when the dimensions of the building change in the vertical direction, the positional relationship between each guide rail 2 and each rail receiver 22 also changes in the vertical direction. Therefore, an external force that tries to slide the rail bracket 24 in the vertical direction relative to the guide rail 2 is applied to each rail receiver 22. When the external force in the vertical direction applied to the rail receiver 22 becomes greater than the holding force of the holder 26 that holds the guide rail 2 to the rail bracket 24, the holder 26 allows the guide rail 2 to slide in the vertical direction relative to the rail bracket 24.

[0027] Each elevator equipment mounting device 4 has a mounting arm 41 , an arm mounting fixture 42 , and a connector 43 .

[0028] The mounting arm 41 is attached to the guide rail 2. In this embodiment, the mounting arm 41 is located lower than the rail bracket 24. The mounting arm 41 is disposed horizontally. The length of the mounting arm 41 is longer than the length of the rail bracket 24.

[0029] The landing plate 12 is attached to the mounting arm 41. The landing plate 12 is disposed at a position away from one of the guide rails 2. In this embodiment, the landing plate 12 is attached to the mounting arm 41 by a plurality of bolts 44.

[0030] The arm attachment 42 attaches the attachment arm 41 to the guide rail 2. The arm attachment 42 has a pair of sliding clips 421 and a pair of fasteners 422.

[0031] Each sliding clip 421 is individually attached to the mounting arm 41 by a respective fastener 422. Each fastener 422 has a bolt and a nut. The guide rail 2 is sandwiched between each sliding clip 421 and the mounting arm 41. Each sliding clip 421 individually presses the mounting arm 41 against the guide rail 2 by the fastening force of each fastener 422. In this way, the arm attachment 42 attaches the mounting arm 41 to the guide rail 2.

[0032] In this embodiment, the mounting force of the arm attachment 42 that attaches the mounting arm 41 to the guide rail 2 is smaller than the holding force of the holder 26 that holds the guide rail 2 to the rail bracket 24. The arm attachment 42 allows the mounting arm 41 to slide up and down relative to the guide rail 2. The mounting arm 41 can slide up and down relative to the guide rail 2 with a force smaller than the holding force of the holder 26.

[0033] The connector 43 connects the mounting arm 41 to the rail bracket 24. As a result, the connector 43 extends downward from the rail bracket 24. The connector 43 is attached to the rail bracket 24 by a first fastener 431. The connector 43 is attached to the mounting arm 41 by a second fastener 432. The connector 43 is disposed along the up-down direction. As a result, the mounting arm 41 is supported by the rail bracket 24 via the connector 43.

[0034] Each of the first fastener 431 and the second fastener 432 has a bolt and a nut. The first fastener 431 is located at an end of the rail bracket 24. The second fastener 432 is located between the guide rail 2 and the landing plate 12.

[0035] The connector 43 is a rigid body. In this embodiment, a steel plate is used as the connector 43. This prevents the connector 43 from deforming when subjected to either a tensile load or a compressive load. Therefore, the connector 43 keeps the distance between the rail bracket 24 and the mounting arm 41 constant.

[0036] In this embodiment, the mounting force of the arm attachment tool 42 that attaches the mounting arm 41 to the guide rail 2 is smaller than the force required to support the total weight of the mounting arm 41 and the landing plate 12. As a result, when the mounting arm 41 is detached from the connector 43, the arm attachment tool 42 cannot support the total weight of the mounting arm 41 and the landing plate 12, and the mounting arm 41 slides downward on the guide rail 2 together with the landing plate 12.

[0037] Next, the operation of the elevator shaft equipment mounting device 4 when the dimensions of the building change over time due to floor compression will be described. When the dimensions of the building change over time due to floor compression, the distance between the floor surfaces of the landings on each floor decreases over time. In this case, the dimensions of the wall 13 of the elevator shaft 1 change in response to the change in the distance between the floor surfaces of the landings on each floor, and the distance between the multiple rail receivers 22 changes in response to the change in the dimensions of the wall 13 of the elevator shaft 1. Therefore, when the dimensions of the building change over time due to floor compression, the positional relationship between each rail receiver 22 and the floor surface of the landing on each floor is maintained.

[0038] On the other hand, even if the dimensions of the building change over time due to compression between floors, the dimensions of each guide rail 2 do not change. Therefore, if the dimensions of the building change over time due to compression between floors, the dimensions of the wall 13 of the elevator shaft 1 change in the vertical direction, and the position of each rail receiver 22 relative to each guide rail 2 changes in the vertical direction. This causes the rail bracket 24 to slide relative to the guide rail 2 against the holding force of each holder 26.

[0039] At this time, in each hoistway equipment mounting device 4, the mounting arm 41 slides along the guide rail 2 together with the landing plate 12 while following the rail bracket 24. When the mounting arm 41 follows the rail bracket 24, the distance between the rail bracket 24 and the mounting arm 41 is kept constant by the connector 43. This causes the position of each landing plate 12 to change in accordance with changes in the dimensions of the wall 13 of the hoistway 1. Therefore, changes in the position of each landing plate 12 relative to the wall 13 of the hoistway 1 are suppressed, and changes in the position of each landing plate 12 relative to the floor surface of the landing on each floor are suppressed.

[0040] In such a hoistway equipment mounting device 4, the arm mounting fixture 42 mounts the mounting arm 41 to the guide rail 2. The mounting arm 41 is attached with the landing plate 12. The arm mounting fixture 42 allows the mounting arm 41 to slide vertically relative to the guide rail 2. The connector 43 connects the mounting arm 41 to the rail bracket 24. The connector 43 keeps the distance between the rail bracket 24 and the mounting arm 41 constant. For this reason, even if the positional relationship between the wall 13 of the hoistway 1 and the guide rail 2 changes in the vertical direction due to, for example, floor compression, the position of the landing plate 12 can be made to follow the change in the position of the rail bracket 24 fixed to the wall 13 of the hoistway 1. This makes it possible to suppress the change in the position of the landing plate 12 relative to the wall 13 of the hoistway 1. Therefore, it is possible to suppress the landing plate 12 from interfering with the fixed equipment of the hoistway 1. In addition, the positional relationship between the landing plate 12 and the floor surface of the landing at each floor can be maintained, and when the car 3 lands on each floor, the position of the floor surface of the car 3 is less likely to deviate from the position of the floor surface of the landing. This makes it possible to reduce the burden of, for example, repairing a landing plate 12 that has been damaged due to interference with fixed equipment, adjusting the position of each landing plate 12, etc.

[0041] In addition, the mounting arm 41 is located lower than the rail bracket 24. Therefore, a tensile load can be applied to the connector 43 by the weight of the mounting arm 41. This makes it easier to keep the distance between the rail bracket 24 and the mounting arm 41 constant by the connector 43. Even if it is difficult to position the mounting arm 41 higher than the rail bracket 24, such as when other equipment arranged in the hoistway 1 is installed higher than the rail bracket 24, the mounting arm 41 can be easily positioned in the hoistway 1.

[0042] Further, each landing plate 12 is an elevator shaft device arranged corresponding to the landing position of the car 3 at a floor where the car 3 can land. The car 3 is provided with a landing detector 11. The landing detector 11 detects the landing plate 12 when facing the landing plate 12, and generates a detection signal corresponding to the detected landing plate 12. Therefore, even if the positional relationship between the wall 13 of the elevator shaft 1 and the guide rail 2 changes in the vertical direction, the landing position of the car 3 can be detected more accurately. This makes it possible to prevent the position of the floor surface 31 of the car 3 from deviating from the position of the floor surface of the hall when the car 3 lands on each floor.

[0043] In the above-mentioned first embodiment, the connector 43 is a rigid body. However, the connector 43 does not have to be a rigid body. For example, a wire or a wire rope may be used as the connector 43. In this case, the mounting arm 41 is suspended from the rail bracket 24 via the connector 43, which does not expand or contract. This causes a tensile load to be constantly applied to the connector 43. Even in this way, the distance between the rail bracket 24 and the mounting arm 41 can be kept constant by the connector 43.

[0044] Embodiment 2 Fig. 3 is a front view showing an elevator shaft equipment mounting device according to embodiment 2. Fig. 3 is a view corresponding to Fig. 2 of embodiment 1. In this embodiment, in each elevator shaft equipment mounting device 4, the mounting arm 41 is located above the rail bracket 24. As a result, the connector 43 extends upward from the rail bracket 24. The first fastener 431 that mounts the connector 43 to the rail bracket 24 is located below the second fastener 432 that mounts the connector 43 to the mounting arm 41.

[0045] The connector 43 is a rigid body. This keeps the distance between the rail bracket 24 and the mounting arm 41 constant. In this embodiment, a steel plate is used as the connector 43. In this embodiment, it is possible that a compressive load is applied to the connector 43 in a direction in which the rail bracket 24 and the mounting arm 41 approach each other. Therefore, in this embodiment, a wire rod, wire rope, or the like that deforms when subjected to a compressive load is not used as the connector 43. The other configurations and operations are the same as those of the first embodiment.

[0046] In such a hoistway equipment mounting device 4, the mounting arm 41 is located above the rail bracket 24. Even in this manner, the position of the landing plate 12 can be made to follow the change in position of the rail bracket 24 fixed to the wall 13 of the hoistway 1. This makes it possible to suppress the change in the position of the landing plate 12 relative to the wall 13 of the hoistway 1. Furthermore, even if it is difficult to position the mounting arm 41 below the rail bracket 24, such as when other equipment arranged in the hoistway 1 is installed below the rail bracket 24, the mounting arm 41 can be easily positioned in the hoistway 1.

[0047] In each of the above embodiments, the mounting force of the arm mounting fixture 42 is smaller than the holding force of the holder 26. However, the mounting force of the arm mounting fixture 42 may be the same as the holding force of the holder 26, or may be larger than the holding force of the holder 26. Even in this manner, the position of the landing plate 12 can be made to follow the change in position of the rail bracket 24 fixed to the wall 13 of the hoistway 1, and the change in the position of the landing plate 12 relative to the wall 13 of the hoistway 1 can be suppressed.

[0048] Also, in each of the above embodiments, the elevator shaft equipment attached to the mounting arm 41 is the landing plate 12. However, the elevator shaft equipment attached to the mounting arm 41 is not limited to the landing plate 12. Therefore, a control device that controls the operation of the elevator, a limit switch that detects when the car 3 has passed the terminal floor, or the like may be attached to the mounting arm 41 as the elevator shaft equipment.

[0049] In each of the above embodiments, the rail bracket 24 is fixed to the wall 13, which is a structural member of the hoistway 1, via the fixed bracket 23. However, the rail bracket 24 may be fixed to a beam exposed to the hoistway 1, which is a structural member of the hoistway 1, via a plate.

[0050] In addition, in each of the above-mentioned embodiments, each guide rail 2 is placed in the hoistway 1 while being placed on the bottom of the hoistway 1. However, each guide rail 2 may be placed in the hoistway 1 with a space between the lower end of each guide rail 2 and the bottom of the hoistway 1. In this case, the weight of each guide rail 2 is held by the rail bracket 24 of each rail receiver 22 by the holding force of each holder 26. Even in this case, the positional relationship between the wall 13 of the hoistway 1 and the guide rail 2 changes over time in the vertical direction. Therefore, by using the hoistway equipment mounting device 4, it is possible to suppress the change in the position of the landing plate 12 relative to the wall 13 of the hoistway 1.

[0051] In addition, in each of the above embodiments, an elevator equipment mounting device 4 according to embodiment 1 in which the mounting arm 41 is positioned below the rail bracket 24 and an elevator equipment mounting device 4 according to embodiment 2 in which the mounting arm 41 is positioned above the rail bracket 24 may be mixed in the elevator 1.

[0052] The configurations shown in the above embodiments are examples of the contents of the present disclosure. The embodiments can be combined with other known technologies. A part of the configuration of the embodiments can be omitted or modified without departing from the gist of the present disclosure. [Explanation of symbols]

[0053] 1 hoistway, 3 car, 11 landing detector, 12 landing plate (hoistway equipment), 13 wall (structure), 24 rail bracket, 26 retainer, 41 mounting arm, 42 arm mounting fixture, 43 connector.

Claims

1. a mounting arm to which the hoistway equipment is attached; an arm attachment for attaching the attachment arm to a guide rail that is held by a holder to a rail bracket that is fixed to a structure of the elevator shaft; a connector that connects the mounting arm to the rail bracket; Equipped with The holder allows the guide rail to slide vertically relative to the rail bracket, the arm attachment tool allows the attachment arm to slide vertically relative to the guide rail; The connector is an elevator hoistway equipment mounting device that maintains a constant vertical distance between the rail bracket and the mounting arm.

2. 2. The elevator hoistway equipment mounting device according to claim 1, wherein the mounting arm is located below the rail bracket.

3. 2. The elevator hoistway equipment mounting device according to claim 1, wherein the mounting arm is located above the rail bracket.

4. the elevator shaft equipment is a landing plate arranged in the elevator shaft corresponding to a landing position of the car at a floor at which the car can land, The cage is provided with a landing detector, 4. The elevator shaft equipment mounting device according to claim 1, wherein the landing detector detects the landing plate when facing the landing plate and generates a detection signal corresponding to the detected landing plate.

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