Elevator hoistway measuring device, elevator hoistway measuring system, and elevator hoistway measuring method

Abstract

To provide an elevator hoistway measuring device, an elevator hoistway measuring system, and an elevator hoistway measuring method that can reduce the effort required for preparation to measure the shape inside a hoistway.SOLUTION: An elevator hoistway measuring device according to an embodiment comprises a measuring instrument that measures the surrounding shape within the vertically extending elevator hoistway, and a guide unit that is connected to the measuring instrument, is installed in the hoistway, extends vertically, and moves on a guide rail that can guide the elevator car vertically by the power of a hoisting machine, and guides the measuring instrument along the guide rail.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to an elevator shaft measurement device, an elevator shaft measurement system, and an elevator shaft measurement method. [Background technology]

[0002] Conventionally, in elevator installation work, a guide rail for the car is installed in the hoistway. If the installation accuracy of the guide rail deviates from the design value of the installation dimensions, there is a risk of contact or interference between the car and the equipment in the hoistway, so the installation accuracy of the guide rail is very important. Therefore, the accuracy of the dimensional measurement of the equipment actually installed in the hoistway is important.

[0003] As a measurement technique for elevator installation work, a three-dimensional measuring device is known that aims to improve the efficiency and automation of the work. For example, the technique disclosed in Patent Document 1 is a three-dimensional measuring technique for the inside of an elevator shaft before the start of installation work, in which a three-dimensional measuring device whose posture is stabilized by a wire stretched from the floor to the ceiling in the elevator shaft is raised and lowered by the hoisting power of a lifting machine or the like, and in order to define the three-dimensional measurement coordinates of the rising and lowering three-dimensional measuring device itself, an external laser device that serves as a coordinate reference is provided in addition to the measuring device itself. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2022-002988 A Summary of the Invention [Problem to be solved by the invention]

[0005] However, in the conventional technology, unnecessary wires are required for the elevator after installation in order to measure the shape inside the hoistway, and there is a problem in that preparations for measuring the shape inside the hoistway are time-consuming.

[0006] Therefore, an object of an embodiment of the present invention is to provide an elevator shaft measurement device, an elevator shaft measurement system, and an elevator shaft measurement method that can reduce the effort required for preparation for measuring the shape inside a shaft. [Means for solving the problem]

[0007] An elevator shaft measuring device of an embodiment includes a measuring instrument that measures the surrounding shape within an elevator shaft extending in a vertical direction, and a guide unit that is connected to the measuring instrument, is installed in the shaft, extends in the vertical direction, and moves on a guide rail that can guide the elevator car in the vertical direction by the power of a hoisting machine, and guides the measuring instrument along the guide rail. [Brief description of the drawings]

[0008] [Figure 1] FIG. 1 is a block diagram showing an elevator hoistway measurement system according to an embodiment. [Diagram 2] FIG. 2 is a perspective view showing an elevator hoistway measurement system according to an embodiment. [Diagram 3] FIG. 3 is a cross-sectional view showing a part of the elevator of the embodiment. [Figure 4] FIG. 4 is a perspective view showing the elevator shaft measuring device of the embodiment. [Diagram 5] FIG. 5 is a cross-sectional view showing a part of the elevator shaft measurement device of the embodiment. [Figure 6] FIG. 6 is a flowchart showing the flow of the elevator hoistway measurement method according to the embodiment. [Figure 7] FIG. 7 is a perspective view showing an elevator shaft measuring device according to a modified example of the embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] Hereinafter, exemplary embodiments of an elevator shaft measurement device, an elevator shaft measurement system, and an elevator shaft measurement method will be disclosed. The configurations and controls (technical features) of the embodiments shown below, as well as the actions and results (effects) brought about by the configurations and controls, are merely examples.

[0010] FIG. 1 is a block diagram showing an elevator shaft measurement system according to an embodiment. FIG. 2 is a perspective view showing an elevator shaft measurement system according to an embodiment. As shown in FIG. 1, an elevator shaft measurement system 1 includes a measurement device 10 and a data processing device 11. As shown in FIG. 2, the measurement device 10 is provided in a shaft 101 of an elevator 100, and measures the shape of the surroundings of the measurement device 10 in the shaft 101. The data processing device 11 shown in FIG. 1 calculates a three-dimensional shape of the surroundings of the measurement device 21 using the measurement results of the measurement device 21. The measurement device 10 is an example of an elevator shaft measurement device, and the data processing device 11 is an example of a calculation device.

[0011] An elevator 100 will be described. FIG. 3 is a cross-sectional view showing a part of an elevator of an embodiment. As shown in FIG. 3, the elevator 100 includes a hoistway 101, two guide rails 102, and a car 103. The hoistway 101 is formed by a wall 111 provided in a building. The hoistway 101 extends in the vertical direction. The two guide rails 102 are provided in the hoistway 101.

[0012] The guide rail 102 is installed in the hoistway 101 and extends in the vertical direction, and can guide the car 103 of the elevator 100 in the vertical direction. Specifically, the guide rail 102 is fixed to a wall surface 111a, which is the surface of the wall 111, via a rail bracket 104. The guide rails 102 each extend in the extension direction of the hoistway 101, i.e., in the vertical direction. The two guide rails 102 face each other with a gap between them. As shown in FIG. 1, the guide rail 102 has a base portion 102a and a rail portion 102b. The base portion 102a is formed in a plate shape extending in the vertical direction and is fixed to the wall surface 111a via the rail bracket 104. The rail portion 102b is formed in a plate shape extending in the vertical direction and protrudes inward of the hoistway 101 from the base portion 102a.

[0013] The car 103 is provided in the elevator shaft 101. The car 103 is provided with a car guide roller (not shown). The car guide roller is rotatable on the guide rail 102. The car guide roller guides the car along the guide rail 102. The car 103 rises and falls in the elevator shaft 101 along the guide rail 102 by the power of a car hoist (not shown). That is, the car 103 moves vertically by the power of the car hoist.

[0014] A measuring device 10 of the elevator hoistway measurement system 1 shown in Figures 1 and 2 is installed in the hoistway 101, for example, before a car 103 is installed in the hoistway 101, and measures the shape inside the hoistway 101.

[0015] Fig. 4 is a perspective view showing an elevator shaft measuring device of the embodiment. As shown in Fig. 4, the measuring device 10 includes a measuring device 21, a support portion 22, and two guide portions 23A.

[0016] The measuring device 21 has a case 31, an attachment part 32, and a measuring part (not shown). The measuring part is housed in the case 31. The attachment part 32 is provided on the upper surface of the case 31. One end of the rope 13 is attached to the attachment part 32. The other end of the rope 13 is connected to the hoisting machine 12. The hoisting machine 12 is, for example, a lifting machine used for installation work of the elevator 100, etc.

[0017] The measuring unit of the measuring device 21 measures the shape of the surroundings in the hoistway 101 of the elevator 100. In other words, the measuring unit of the measuring device 21 measures the dimensions of surrounding objects in the hoistway 101. The measuring unit may have a known configuration. For example, the measuring unit may be a two-dimensional scanner that scans the horizontal direction with a laser beam and detects the shape (object) of each part in the hoistway 101 as point cloud data. The data of each point in the point cloud data includes the distance between the measuring device 21 and each part and the position of each part relative to the measuring device 21. That is, the measuring unit detects the distance between the measuring device 21 and each part and the position of each part relative to the measuring device 21. In addition, as another example, the measuring unit may be a three-dimensional scanner that scans the surroundings of the measuring device 21 to detect the shape of each part in the hoistway 101 as point cloud data. All of the above scans are 360-degree scans around an axis along the vertical direction. The measuring device 10 outputs point cloud data, which is the measurement result of the measuring instrument 21, to the data processing device 11 via a communication device (not shown).

[0018] The support part 22 is located between the two guide rails 102 and extends in the opposing direction of the two guide rails 102. The support part 22 is formed, for example, of a steel frame member. The measuring device 21 is fixed onto an upper wall 22a of the support part 22. The measuring device 21 is installed, for example, at a midpoint between the two guide rails 102. The support part 22 is also called a stretcher stand.

[0019] The two guide portions 23A are provided at both ends of the support portion 22 in the opposing direction of the two guide rails 102. The guide portion 23A is coupled to the measuring device 21 via the support portion 22, and moves on the guide rails 102 by the power of the hoisting machine 12, guiding the measuring device 21 along the guide rails 102. Note that the number of guide portions 23A may be one.

[0020] Specifically, the guide portion 23A has a support portion 41 and a plurality of (for example, three) rollers 42A to 42C.

[0021] The support portion 41 rotatably supports the rollers 42A to 42C. The support portion 41 has a base wall 41a and a standing wall 41b. The base wall 41a is fixed to the upper wall 22a of the support portion 22 in a state where it is overlapped on the upper surface of the upper wall 22a.

[0022] The fixing structure of the base wall 41a to the support part 22 will be described with reference to Fig. 5. Fig. 5 is a cross-sectional view showing a part of an elevator shaft measuring device of an embodiment. As shown in Fig. 5, the upper wall 22a of the support part 22 is provided with a through hole 22b that penetrates the upper wall 22a in the vertical direction. The base wall 41a is provided with a through hole 41c that penetrates the base wall 41a in the vertical direction. The through hole 41c is overlapped with the through hole 22b. The base wall 41a is fixed to the upper wall 22a of the support part 22 by a bolt 51 inserted into the through holes 22b, 41c and a nut 52 coupled to the bolt 51.

[0023] Rollers 42A to 42C are connected to vertical wall 41b with fasteners such as bolts, and are rotatable on guide rail 102. Rollers 42A and 42B sandwich rail portion 102b of guide rail 102. In other words, rollers 42A and 42B grip rail portion 102b of guide rail 102. Roller 42C contacts the end of rail portion 102b on the protruding direction side, i.e., the end on the inner side of elevator shaft 101.

[0024] 1, the measuring device 10 includes a detection unit 24. The detection unit 24 detects a physical quantity related to the rotation of the rollers 42A to 42C. Specifically, the detection unit 24 is a rotary encoder, and detects the amount of rotation (rotation angle) as a physical quantity related to the rotation of the rollers 42A to 42C. The detection unit 24 is provided, for example, on any one of the rollers 42A to 42C. The measuring device 10 outputs the detection result of the detection unit 24 to the data processing device 11 via a communication device (not shown). It should be noted that the detection unit 24 is not limited to the above.

[0025] 2 is a device that processes data output from the measurement device 10, and includes, for example, a CPU (Central Processing Unit), a memory, a communication device, etc. The memory includes a ROM (Read Only Memory) and a RAM (Random Access Memory). The communication device of the data processing device 11 communicates with the measurement device 10 wirelessly or via wires.

[0026] The data processing device 11 calculates the vertical movement distance of the measuring device 10 from the measurement start point based on the detection result of the detection unit 24. The data processing device 11 calculates (specifies) the vertical position of each point of the point cloud data based on the calculated movement distance. That is, the data processing device 11 calculates the three-dimensional shape of the surrounding shape of the measuring instrument 21 based on the detection result of the measuring device 10 and the detection result of the detection unit 24. This allows the data processing device 11 to calculate various dimensions such as the dimensions (width and depth) of the shape of the wall surface 111a of the hoistway 101, the dimensions of the attachment shape and mounting dimensions of each member in the hoistway 101, etc.

[0027] At this time, the data processing device 11 uses the guide rail 102 as a horizontal coordinate reference in the calculation of the three-dimensional shape. For example, the data processing device 11 sets one point of one of the two guide rails 102 as the origin of a coordinate system 200 (FIG. 4). The data processing device 11 sets an X-axis along a direction from one point of one of the two guide rails 102 to the other point in a horizontal plane, and sets a Y-axis that is orthogonal to the X-axis in the horizontal plane. The data processing device 11 also sets a Z-axis that is orthogonal to the X-axis and Y-axis. The origin of the coordinate system is set based on the measurement start point. The X-axis and Y-axis constitute horizontal measurement coordinates, and the Z-axis constitutes vertical (perpendicular) measurement coordinates. The coordinate system 200 is not limited to the above.

[0028] Next, an elevator hoistway measurement method will be described with reference to Fig. 6. Fig. 6 is a flowchart showing the flow of the elevator hoistway measurement method according to the embodiment.

[0029] 6, first, an assembly process is performed in which the measuring device 10 is assembled to the guide rail 102 and the hoisting machine 12 (S11). Specifically, a worker assembles the guide portion 23A to the guide rail 102. At this time, the worker connects the rollers 42A to 42C to the vertical wall 41b with fasteners such as bolts while the rollers 42A to 42C are in contact with the guide rail 102. The worker also attaches one end of the rope 13 to the attachment portion 32 of the measuring instrument 21, thereby assembling the measuring device 10 to the hoisting machine 12 via the rope 13.

[0030] Next, a measurement step is performed (S12). Specifically, the measuring device 10 is moved along the guide rail 102 by the power of the hoist 12 through a predetermined operation by an operator, and the shape is measured by the measuring instrument 21. In other words, the measuring device 10 is moved along the guide rail 102 by the power of the hoist 12 through a predetermined operation by an operator, while the shape is measured by the measuring instrument 21. As an example, the measuring device 10 is moved vertically upward from the initial position, and during this movement process, the measuring device 10 repeatedly measures the shape.

[0031] As described above, in this embodiment, measuring device 10 (elevator hoistway measuring device) includes measuring device 21 and guide unit 23A. Measuring device 21 measures the surrounding shape within hoistway 101 of elevator 100, which extends in the vertical direction. Guide unit 23A is coupled to measuring device 21 and moves by the power of hoisting machine 12 on guide rail 102, which is installed in hoistway 101, extends in the vertical direction, and is capable of guiding the car of elevator 100 in the vertical direction, to guide measuring device 21 along guide rail 102.

[0032] According to this configuration, measuring instrument 21 is guided by guide rail 102 via guide portion 23A, so there is no need to install a wire, which is a dedicated member for stabilizing the posture of measuring instrument 21, inside hoistway 101. Therefore, the effort required for preparation for measuring the shape inside hoistway 101 can be reduced.

[0033] Furthermore, according to the above configuration, the positional dimensions of the actually installed guide rail 102 and the positional dimensional accuracy of the surrounding items based on the guide rail 102 can be measured without preparing a special coordinate origin definition device for defining three-dimensional measurement coordinates as in the prior art. Furthermore, since three-dimensional measurement of the inside of the hoistway 101 can be performed with the guide rail 102 and the hoisting power, it is possible to check not only the positional accuracy of the guide rail 102 but also the presence or absence of interference with entrance and exit items and other items of the elevator, which are generally installed after the installation of the guide rail 102, before the installation of the car 103. Furthermore, even in renewal work for updating the equipment of the elevator 100 without removing the installed guide rail 102, it is possible to quickly respond to three-dimensional measurement.

[0034] Moreover, the elevator hoistway measurement system 1 includes a measurement device 10 and a data processing device 11 (calculation device). The data processing device 11 calculates a three-dimensional shape of the surrounding shape of the measurement device 21 using the measurement results of the measurement device 21.

[0035] According to this configuration, a three-dimensional shape of the inside of the hoistway 101 is obtained.

[0036] Moreover, the data processing device 11 uses the guide rail 102 as a horizontal coordinate reference in calculating the three-dimensional shape.

[0037] According to this configuration, there is no need to install a dedicated member as a horizontal coordinate reference, and therefore the time and effort required for preparations for measuring the shape inside the hoistway 101 can be reduced.

[0038] Furthermore, guide unit 23A has rollers 42A to 42C that rotate on guide rail 102, and detection unit 24 that detects physical quantities related to the rotation of rollers 42A to 42C. Data processing device 11 specifies vertical coordinates based on the detection result of detection unit 24 in calculating the three-dimensional shape.

[0039] According to this configuration, it is possible to specify the vertical coordinates in the calculation of the three-dimensional shape with a relatively simple configuration.

[0040] The elevator measurement method also includes an assembly process of assembling the measuring device 10 to the guide rail 102 and the hoisting machine 12, and a measurement process of moving the measuring device 10 along the guide rail 102 using the power of the hoisting machine 12 and measuring the shape using a measuring instrument 21.

[0041] According to this configuration, since measuring device 21 is guided by guide rail 102 via guide portion 23A, there is no need to install a wire for stabilizing the attitude of measuring device 21 inside hoistway 101. Therefore, the effort required for preparation for measuring the shape inside hoistway 101 can be reduced.

[0042] Next, a modified example will be described. Fig. 7 is a perspective view showing an elevator shaft measuring device according to a modified example of the embodiment.

[0043] As shown in Fig. 7, in this modification, the distance between the two guide rails 102 is longer than the distance between the guide rails 102 in Fig. 1. In addition, in this modification, a guide portion 23B is provided in place of the guide portion 23A.

[0044] The length of the base wall 41a of the support portion 41 of the guide portion 23B in the opposing direction of the two guide rails 102 is different from that of the guide portion 23A. Specifically, the length of the base wall 41a of the support portion 41 of the guide portion 23B in the opposing direction of the two guide rails 102 is longer than the length of the base wall 41a of the guide portion 23A. That is, in this modification, the guide portions 23A and 23B are replaceable according to the guide rail 102. Note that the through holes 41c of the base walls 41a of the guide portions 23A and 23B may be elongated with the opposing direction of the two guide rails 102 as the longitudinal direction, so that the position relative to the measuring device 21 can be adjusted to correspond to the difference in the interval between the two guide rails 102. Also, a plurality of guide portions 23A and 23B may be created to correspond to the difference in the shape (specification) of the guide rails 102, and the guide portions 23A and 23B that match the shape of the guide rails 102 may be provided in the measuring device 10.

[0045] As described above, guide portions 23A and 23B are replaceable or their positions relative to measuring device 21 can be adjusted according to guide rail 102.

[0046] According to this configuration, it is possible to replace guide parts 23A, 23B or adjust the positions of guide parts 23A, 23B relative to measuring device 21 according to the size and position of guide rails 102 (the distance between two guide rails 102). In other words, by replacing or adjusting the positions of guide parts 23A, 23B, it is possible to easily accommodate measurement of various objects having different sizes and arrangements of guide rails 102.

[0047] Although some embodiments of the present invention have been described, these embodiments are presented as examples and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other forms, and various omissions, substitutions, and modifications can be made without departing from the spirit of the invention. These embodiments and their modifications are included in the scope and spirit of the invention, and are included in the scope of the invention and its equivalents described in the claims. [Explanation of symbols]

[0048] 10...measuring device (elevator hoistway measuring device), 11...data processing device (calculating device), 12...hoisting machine, 21...measuring instrument, 23A, 23B...guide section, 24...detection section, 42A to 42C...rollers, 100...elevator, 101...hoistway, 103...car.

Claims

1. A measuring device for measuring the shape of the surroundings within a vertically extending elevator hoistway; a guide unit coupled to the measuring device, installed in the hoistway, extending in the vertical direction, and movable on a guide rail capable of guiding the elevator car in the vertical direction by the power of a hoisting machine, and guiding the measuring device along the guide rail; An elevator shaft measuring device comprising:

2. The guide portion is replaceable or its position relative to the measuring device can be adjusted according to the guide rail.

2. The elevator hoistway measurement device of claim 1.

3. an elevator hoistway measuring device including: a measuring device that measures the surrounding shape within an elevator hoistway extending in a vertical direction; and a guide unit that is coupled to the measuring device, that is installed in the hoistway, that extends in the vertical direction, that moves on a guide rail that can guide the elevator car in the vertical direction by the power of a hoisting machine, and that guides the measuring device along the guide rail; A calculation device that calculates a three-dimensional shape of the shape using the measurement results of the measuring device; and 1. An elevator hoistway measurement system comprising:

4. The calculation device uses the guide rail as a horizontal coordinate reference in calculating the three-dimensional shape.

4. The elevator hoistway measurement system of claim 3.

5. the guide unit includes a roller that rotates on the guide rail and a detection unit that detects a physical quantity related to the rotation of the roller, The calculation device specifies the vertical coordinate in the calculation of the three-dimensional shape based on the detection result of the detection unit.

4. The elevator hoistway measurement system of claim 3.

6. an assembly process for assembling an elevator hoistway measuring device, the elevator hoistway measuring device including: a measuring device for measuring the surrounding shape within a vertically extending elevator hoistway; and a guide unit coupled to the measuring device, the measuring device being moved by the power of a hoistway on a guide rail that is installed in the hoistway, extends in the vertical direction, and is capable of guiding the elevator car in the vertical direction, and that guides the measuring device along the guide rail; to the guide rail and the hoistway; a measuring step of moving the elevator shaft measuring device along the guide rail by the power of the hoisting machine and measuring the shape by the measuring device; An elevator hoistway measurement method comprising:

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