Air circuits in elevator guide rail processing devices and passenger transport devices

Abstract

The present invention provides an elevator guide rail processing device and an air circuit for a passenger transport device that can reduce power consumption. [Solution] The air circuit comprises an air cylinder, an air compressor, and a pressure switch that can set at least two set values ​​A and B (A>B) for the pressure in the compressed air supply pipeline, and outputs a signal to the control unit when the pressure in the compressed air supply pipeline reaches either set value. The air compressor is controlled by the control unit to stop when the control unit receives a signal related to set value A after operation, and to start again when the control unit receives a signal related to set value B.

Description

Technical Field

[0001] The present invention relates to a device (guide rail installation support device) for assisting the installation of an elevator guide rail, etc., and a device (guide rail processing device) that performs predetermined processing on a guide rail. The present invention also relates to an air circuit in a passenger conveyance device of an elevator, an escalator, or a moving walkway.

Background Art

[0002] The guide rail is cut to an appropriate length at the factory, shipped, and then carried into the installation site. At the installation site, the guide rail is connected in a row continuously from the bottom (pit) to the top in the hoistway and attached to the wall surface of the hoistway. At this time, processing such as centering, cleaning, and fitting is required over the entire length of the guide rail. This is because if the installation accuracy and surface condition of the guide rail are poor, it will cause unfavorable events for the operation of the elevator, such as a poor riding comfort of the car, vibration, and abnormal noise.

[0003] Normally, these processes are performed by workers. However, it is a great burden for workers to work by ascending and descending between the bottom and the top in the hoistway for two pairs (four rows) of guide rails, namely, the guide rail for the car and the guide rail for the counterweight. Therefore, the automation of these processes, that is, the development of a guide rail installation support device, has become an important issue.

[0004] As an example of such development, Patent Documents 1 to 3 describe various guide rail installation support devices. Specifically, Patent Document ① describes a guide rail centering device that automates the centering of a guide rail, Patent Document ② describes a guide rail cleaning device that automates the cleaning of a guide rail, and Patent Document ③ describes a guide rail fitting device that automates the fitting of a guide rail.

Prior Art Documents

Patent Documents

[0005] [Patent Document 1] Japanese Patent Application Publication No. 7-242379 [Patent Document 2] International Publication No. 2020 / 136712 [Patent Document 3] International Publication No. 2019 / 142362 [Overview of the project] [Problems that the invention aims to solve]

[0006] In this type of processing apparatus, as described in Patent Document 3, an air cylinder is generally used as a drive unit that moves the processing unit, which performs a predetermined process on the guide rail, between an operating mode in which it is in contact with the surface of the guide rail and a non-operating mode in which it is separated from the surface of the guide rail.

[0007] The air cylinder operates by receiving compressed air from an air compressor. The air compressor is controlled to continue operating while the predetermined processing is being performed, maintaining the extended position of the air cylinder's piston. This requires a significant amount of power. In particular, if the processing unit operates on an internal power source (battery), the battery's power consumption is substantial, leading to increased battery charging and replacement frequency, and consequently, a decrease in processing efficiency.

[0008] Therefore, the object of the present invention is to provide an elevator guide rail processing device and an air circuit in a passenger transport device that can reduce power consumption. [Means for solving the problem]

[0009] The elevator guide rail processing device according to the present invention is An elevator guide rail processing device comprising: a processing unit that performs predetermined processing on a guide rail; a drive unit that moves the processing unit between an operating mode in which an air cylinder is in contact with or close to the surface of the guide rail and a non-operating mode in which it is separated from the surface of the guide rail, and a control unit, As an air circuit for an air cylinder, Air compressor and At least two set values ​​A and B for the pressure in the compressed air supply pipeline. A and B are values ​​that can effectively maintain the air cylinder in operating mode. A > B) can be set, In a state of communication with the air cylinder It includes a pressure switch that outputs a signal to the control unit when the pressure in the compressed air supply pipeline reaches any of the set values, The air compressor is controlled by the control unit to stop when it receives a signal related to set value A after operation, and to restart when it receives a signal related to set value B. This is a guide rail processing device for elevators.

[0010] As one embodiment of the elevator guide rail processing device according to the present invention, The pressure switch has the ability to set a first setpoint and a differential, and has the function of outputting a signal when the pressure in the compressed air supply pipeline, while in communication with the air cylinder, reaches the first setpoint, and the function of outputting a signal when it reaches a second setpoint, which is the first setpoint plus a differential. Setting value A is the second setting value, and setting value B is the first setting value. This configuration can be adopted. or, The pressure switch has the ability to set a first setpoint and a differential, and has the function of outputting a signal when the pressure in the compressed air supply pipeline, while in communication with the air cylinder, reaches the first setpoint, and the function of outputting a signal when it reaches a third setpoint, which is the first setpoint minus the differential. Setting value A is the first setting value, and setting value B is the third setting value. This configuration can be adopted.

[0012] As one embodiment of the elevator guide rail processing device according to the present invention, The device includes a scraper that can move toward and away from the surface of the guide rail, and in the operating mode, the scraper is brought into contact with the surface of the guide rail, thereby providing a removal unit as a processing unit to remove deposits from the surface of the guide rail as the device moves. This configuration can be adopted.

[0013] As one embodiment of the elevator guide rail processing device according to the present invention, The device includes a rotating grinding wheel that can move toward and away from the surface of the guide rail, and in the operating mode, the grinding wheel rotates and comes into contact with the surface of the guide rail, thereby polishing and lapping the surface of the guide rail as the device moves, with the processing section being provided. This configuration can be adopted.

[0014] The air circuit in the passenger conveyance device according to the present invention is an air circuit in a passenger conveyance device such as an elevator, escalator, or moving walk, including an air cylinder, an air compressor, and at least two set values A and set value B ( A and B are values ​​that can effectively maintain the air cylinder in operating mode. A > B) for the pressure in the supply pipeline of compressed air can be set, In a state of communication with the air cylinder and a pressure switch that outputs a signal to the control unit when the pressure in the supply pipeline of compressed air reaches any of the set values. The air compressor is controlled by the control unit such that after operation, it stops when the control unit receives a signal related to set value A, and operates again when the control unit receives a signal related to set value B. It is an air circuit in a passenger conveyance device.

Advantages of the Invention

[0015] According to the present invention, during the period when the operating pressure of compressed air is sufficient for performing a predetermined process, the operation of the air compressor stops. Therefore, according to the present invention, the power consumption can be suppressed.

Brief Description of the Drawings

[0016] [Figure 1] FIG. 1 is a perspective view of a guide rail. [Figure 2] FIG. 2(a) is a longitudinal sectional view inside a hoistway. FIG. 2(b) is a longitudinal sectional view inside a hoistway with a guide rail installation support device set. [Figure 3] FIG. 3(a) is a side view of the main configuration of the injection part of the main device of the guide rail cleaning device. FIG. 3(b) is a plan view of the main configuration of the injection part. [Figure 4] FIG. 4(a) is a side view of the removal part of the main device of the guide rail cleaning device. FIG. 4(b) is a plan view of the main configuration of the removal part. [Figure 5] FIG. 5(a) is a perspective view of the removal part in the operating mode. FIG. 5(b) is a perspective view of the removal part in the non-operating mode. [Figure 6]Figure 6 is an air circuit diagram of the removal section. [Figure 7] Figure 7 is a block diagram of the control unit for the main unit and the lifting machine (sub-unit) of the guide rail cleaning device. [Figure 8] Figure 8 is a flowchart of the control method for the removal unit. [Figure 9] Figure 9(a) is a perspective view of the sliding section of the main unit of the guide rail sliding device, viewed from an oblique front angle. Figure 9(b) is a plan view of the main components of the sliding section. [Figure 10] Figure 10(a) is a perspective view of the sliding joint in the operating mode. Figure 10(b) is a perspective view of the sliding joint in the non-operating mode. [Figure 11] Figure 11 is an air circuit diagram of the sliding joint. [Figure 12] Figure 12(a) is a perspective view of the step detection section of the main unit of the guide rail sliding device. Figure 12(b) is a plan view of the main components of the step detection section. [Figure 13] Figure 13 is a block diagram of the control unit for the main unit and the lifting machine (sub-unit) of the guide rail sliding device. [Figure 14] Figure 14 is a flowchart of the control method for the sliding joint. [Figure 15] Figure 15 is an example of an air circuit diagram. [Modes for carrying out the invention]

[0017] <Elevator and guide rail configuration> The following describes a guide rail installation support device as one form of elevator guide rail processing device. However, before that, we will first describe the configuration of the elevator and guide rails.

[0018] As shown in Figures 1 and 2(a), the elevator comprises a hoistway 1, a car, and a car drive mechanism. The hoistway 1 extends vertically within a building with multiple floors. A pair (two rows) of guide rails 2, 2 are attached to two opposing walls 1a, 1a of the hoistway 1, extending vertically. The car moves up and down within the hoistway 1, guided by the guide rails 2, as guide bodies attached to four locations (top, bottom, left, and right) slide along the guide rails 2. The car drive mechanism controls the movement of the car and stops it at the designated floor.

[0019] The guide rail 2 has a T-shape in plan view and comprises a base portion 20 and a projection portion 21. The base portion 20 is a strip-shaped plate extending in the vertical direction and is arranged parallel to the wall surface 1a of the elevator shaft 1 at a predetermined distance. The projection portion 21 is a strip-shaped plate extending in the vertical direction, is connected to the central part of the base portion 20 at one side, and protrudes perpendicularly from the base portion 20.

[0020] The projection 21 comprises a connecting portion 210 and a guide portion 211. The connecting portion 210 connects the base portion 20 and the guide portion 211. The connecting portion 210 is narrower than the guide portion 211 and forms a constriction in the projection 21. The guide portion 211 slides against the guide body of the cage and guides the guide body to move linearly in the vertical direction. The guide portion 211 comprises two guide surfaces 211a, 211a and a tip surface 211b. The two guide surfaces 211a, 211a are surfaces located in the thickness direction of the guide portion 211 and are parallel or tapered, with the tip side being narrower. The tip surface 211b is a surface located between the tip edges of the two guide surfaces 211a, 211a and is a flat surface or a curved surface such as an arc surface.

[0021] The guide rail 2 has an appropriate length and is extended vertically by connecting the ends of two guide rails 2, 2. One end of the guide rail 2 has a protrusion 22 on its end face, and the other end of the guide rail 2 has a groove 23 on its end face. The protrusion 22 and groove 23 are formed along the front-rear direction and extend between the front end surface 211b and the back surface of the base 20. The ends of the upper and lower guide rails 2, 2 are connected without shifting in the left-right direction by the interlocking of the protrusion 22 and groove 23.

[0022] The upper and lower guide rails 2,2 are connected at both ends using a connecting material 25 such as a cover plate. The connecting material 25 is plate-shaped and is placed against the back of both ends (bases 20) of the upper and lower guide rails 2,2, and is positioned across both ends. Multiple screw holes or through holes are formed in the upper and lower halves of the connecting material 25, and through holes are formed at the ends of the guide rails 2 corresponding to these holes. The connecting material 25 is connected to the ends of the guide rails 2 using a fastener 250.

[0023] The guide rail 2 is fixed to the wall surface 1a of the elevator shaft 1 at appropriate points along its length using guide rail support members 27. The guide rail support member 27 comprises a wall bracket 270, a rail bracket 271, and a rail clip 273. The wall bracket 270 is fixed to the wall surface 1a of the elevator shaft 1 using fasteners. Alternatively, the wall bracket 270 is fixed to a beam or frame provided along the wall surface 1a of the elevator shaft 1 using fasteners and / or welding. The rail bracket 271 is positioned relative to the wall bracket 270 and then fixed to the wall bracket 270 using fasteners and welding. The rail clip 273 is fixed to the vertical surface of the rail bracket 271 using fasteners 274 at two points on the left and right of the base 20 of the guide rail 2, while in contact with the outer surface of the base 20.

[0024] <Guide rail installation procedure> Guide rail 2 is installed during elevator installation work in the following procedure. Note that wall bracket 270 is attached and fixed to the wall surface 1a of the hoistway 1 in advance, prior to or during the elevator installation work.

[0025] (Installation process for the first guide rail) At the lowest point (pit) of the elevator shaft 1, the worker adjusts the horizontal position of the rail bracket 271, which is fixed to the first guide rail 2, relative to the corresponding wall bracket 270, thereby aligning it with the first guide rail 2. After the alignment is complete, the rail bracket 271 is fixed to the wall bracket 270 (final fixing).

[0026] (Connection process) The worker uses a lifting machine to suspend the second guide rail 2, places it on top of the first guide rail 2, and connects both ends of the two guide rails 2, 2.

[0027] (Installation process for the second guide rail) The worker temporarily attaches the rail bracket 271, which is fixed to the second guide rail 2, to the corresponding wall bracket 270.

[0028] (Connection process) The worker uses a lifting machine to suspend the third guide rail 2, places it on top of the second guide rail 2, and connects both ends of the two guide rails 2, 2.

[0029] The workers repeat these steps to connect the guide rails 2 sequentially upwards, installing them all the way to the top of the elevator shaft 1.

[0030] (Centering and final fixing process for the second and subsequent guide rails) At this point, the second and subsequent guide rails 2 have not yet been aligned, and the rail brackets 271 that will be fixed to the second and subsequent guide rails 2 are not yet permanently fixed to the wall brackets 270. Therefore, the worker or equipment will perform these tasks.

[0031] (Cleaning process using guide rail cleaning device) Guide rails 2 are cut to the appropriate length at the factory, holes are drilled at the ends, and then shipped out. They are transported to the installation site and installed there. To prevent the guide rails 2 from rusting during this time, they are coated with rust-preventive oil at the factory before being shipped out. Rust-preventive oil is not necessary for elevator operation. Furthermore, if the rust-preventive oil is left as is, dust and other debris will easily adhere to it, which is undesirable for elevator operation. Therefore, prior to elevator operation, the guide rail cleaning device (hereinafter abbreviated as "cleaning device"), which is one of the guide rail installation support devices (hereinafter abbreviated as "installation support device"), cleans the surface of the guide section 211 of the guide rail 2 to remove the rust-preventive oil.

[0032] (Lapping process using a guide rail lapping device) Guide rail 2 has some manufacturing tolerances in dimensions such as the width of the guide section 211 in the left-right direction and the length of the protruding section 21. As a result, the surfaces of the two guide sections 211, 211 may not be flush at the connecting parts at both ends of the upper and lower guide rails 2, 2, resulting in a step. Even if the step is small, it can cause vibration and abnormal noise when the elevator car's guide body passes over the step during elevator operation. Therefore, prior to elevator operation, a guide rail sliding device (hereinafter abbreviated as "sliding device") is used to perform a sliding process that eliminates the step on the surface of the guide section 211 and finishes the surface of the guide section 211 to a smooth surface.

[0033] <Common configuration of installation support devices> As shown in Figure 2(b), the installation support device 3 is composed of a main device 4 and a lifting machine 5 as a secondary device.

[0034] The main unit 4 is configured to move along the guide rail 2 while gripping it. The main unit 4 is suspended and supported by the lifting machine 5, and moves upward (up) as the lifting machine 5 winds up the wire, and moves downward (down) as the lifting machine 5 winds down the wire.

[0035] The main unit 4 is equipped with a device base. The device base constitutes the overall frame of the main unit 4. Engaged parts such as eye bolts are attached to the upper part of the device base. Hooks attached to the ends of wires, chains, ropes, etc., that hang down from the body of the lifting machine 5 engage with the engaged parts and suspend and support the device base. Various functional parts are mounted on the device base. The main unit 4 is equipped with a battery as a power source and operates by receiving power from the battery. However, the main unit 4 may also operate by receiving power from an external power source connected via a power line.

[0036] The main unit 4 is equipped with guide bodies. The guide bodies are roller guides attached to the upper and lower parts of the device base. Two rollers each abut against the guide surface 211a of the guide portion 211 of the guide rail 2 and have flange portions at their ends that engage with the constricted portion 210 of the guide rail 2. The other roller abuts against the front end surface 211b of the guide portion 211. As a result, the main unit 4 grips the guide rail 2 (or its guide portion 211) without falling off the guide rail 2.

[0037] The lifting device 5 is installed in the upper part of the elevator shaft 1 (preferably at the very top of the elevator shaft 1). The lifting device 5 is an electrically operated lifting device, and a commercially available product is used. Electrically operated lifting devices include hoists, winches, cranes, and chain blocks. The lifting device 5 is not limited to any of these, and an appropriate one can be adopted.

[0038] <Configuration of the cleaning device> The main unit of the cleaning device comprises a spraying unit and a removal unit as its functional components.

[0039] As shown in Figure 3, the spray unit 6 includes a nozzle 60 positioned so that its nozzle opening faces the guide portion 211 of the guide rail 2, and in operation mode, it has the function of spraying a chemical solution (for example, a cleaning solution) onto the surface of the guide portion 211 by supplying the chemical solution to the nozzle 60.

[0040] A supply unit 61 is connected to the nozzle 60. The supply unit 61 consists of a tube as a conduit and a pump as an actuator, and supplies the chemical solution to the nozzle 60 from a tank that holds a sufficient amount of chemical solution so that frequent replenishment of the chemical solution is not necessary.

[0041] As shown in Figures 4 and 5, the removal unit 7 is equipped with scrapers 71, 71, and 73 that can move toward and away from the surface of the guide portion 211 of the guide rail 2. In the operating mode, the scrapers 71, 71, and 73 are brought into contact with the surface of the guide portion 211, thereby removing any deposits adhering to the surface of the guide portion 211 as the main unit moves.

[0042] The removal unit 7 comprises two guide surface scrapers 71, 71, two drive units 72, 72, a tip surface scraper 73, and a drive unit 74. Each guide surface scraper 71 is supported by each drive unit 72, and the tip surface scraper 73 is supported by the drive unit 74. The drive units 72, 74 are mounted on a base 70, which is part of the device base.

[0043] The two guide surface scrapers 71, 71 consist of a right guide surface scraper 71A and a left guide surface scraper 71B. The right guide surface scraper 71A makes contact with one guide surface 211a in a manner that allows it to move toward and away from it. The left guide surface scraper 71B makes contact with the other guide surface 211a in a manner that allows it to move toward and away from it. The tip surface scraper 73 makes contact with the tip surface 211b in a manner that allows it to move toward and away from it.

[0044] The guide surface scraper 71 has a blade 711 detachably (replaceable) attached to a holder 710. The blade 711 is made of metal, rubber, or resin. The blade 711 is the part that actually contacts the guide surface 211a and has a contact edge. The blade 711 has a length greater than the width (length dimension in the front-to-back direction) of the guide surface 211a, and the contact edge contacts the entire width of the guide surface 211a from the tip to the base in the width direction. The blade 711 is positioned so that the contact edge is inclined upward with respect to the front-to-back direction.

[0045] The drive unit 72 is provided for each guide surface scraper 71 and is a mechanism that moves the guide surface scraper 71 between an operating mode in which it is in contact with the guide surface 211a of the guide rail 2 and a non-operating mode in which it is separated from the guide surface 211a. The drive unit 72 comprises a linear guide 720, an air cylinder 721 as an air-driven actuator, and an elastic body 722 such as a tension spring.

[0046] The linear guide 720 is mounted on the base 70 along the left-right direction and supports the holder 710 of the guide surface scraper 71 by carriage. This allows the two guide surface scrapers 71, 71 to move left-right, narrowing or widening the distance between them.

[0047] The air cylinder 721 is supplied with compressed air from an air compressor (not shown) only through the first port. The guide surface scraper 71 moves in the forward path to the operating mode by the piston extension movement of the air cylinder 721, which is operated by the supply of compressed air from the first port, and moves in the return path to the non-operating mode by the piston retraction movement of the air cylinder 721, which is operated by the elastic restoring force of the elastic body 722.

[0048] The combination of the right guide surface scraper 71A and its drive unit 72, and the combination of the left guide surface scraper 71B and its drive unit 72, are arranged parallel to each other with a gap between them in the left-right direction, and are arranged symmetrically in the left-right direction with respect to the front-back direction.

[0049] The tip surface scraper 73 is positioned at a higher height than the two guide surface scrapers 71, 71. As will be described later, this means that in the operating mode of the removal unit 7, the tip surface scraper 73 precedes the two guide surface scrapers 71, 71.

[0050] The tip surface scraper 73 has a blade 731 detachably (replaceable) attached to a holder 730. The drive unit 74 is a mechanism that moves the tip surface scraper 73 between an operating mode in which it contacts the tip surface 211b of the guide rail 2 and a non-operating mode in which it is separated from the tip surface 211b. The drive unit 74 comprises a linear guide 740, an air cylinder 741, and an elastic body 742. These configurations are the same as those of the guide surface scraper 71 and the drive unit 72.

[0051] As shown in Figure 6, the three air cylinders 721, 721, and 741 receive compressed air from a single air compressor 750. The compressed air supply pipeline from the air compressor 750 to the three air cylinders 721, 721, and 741 branches off from a single main pipeline into three branch pipelines, each connected to a different air cylinder. Each pipeline is made of metal or resin tubing (piping). The air circuit comprises the air compressor 750, a manifold 751, a pressure switch 752, and a solenoid valve 753. The air compressor 750 is connected to the primary port of the manifold 751 via the pipeline. The air compressor 750 is equipped with check valves on both the primary side (air intake side) and the secondary side (air discharge side). The manifold 751 has multiple secondary ports. The first port (head side port) of each air cylinder is connected to each secondary port of the manifold 751 via the pipeline. The pressure switch 752 is connected via a conduit to another secondary port of the manifold 751. The solenoid valve 753 is connected via a conduit to yet another secondary port of the manifold 751.

[0052] The pressure switch 752 has a pressure gauge and has the following functions: i) outputting a signal when the pressure in the supply pipeline reaches a value set by the pressure switch 752 (first set value); ii) outputting a signal when the pressure in the supply pipeline reaches a value obtained by adding the hysteresis set by the pressure switch 752 to the first set value (second set value); and iii) outputting a signal when the pressure in the supply pipeline reaches a value obtained by subtracting the hysteresis set by the pressure switch 752 from the first set value (third set value).

[0053] The solenoid valve 753 is a two-way solenoid valve. When the solenoid valve 753 is open, the supply line is opened to the atmosphere, and the air in the supply line is exhausted.

[0054] Alternatively, a regulator may be installed in the branch pipeline of each air cylinder to adjust the pressure in each branch pipeline. In this case, the contact pressure (pressing force) of each scraper can be adjusted individually.

[0055] As shown in Figure 7, the control unit 40A of the main unit 4A controls the entire cleaning device, including the operation and deoperation of the spray unit 6 and the removal unit 7. The control unit 40A includes a driver unit 400A for the pump of the spray unit 6, a driver unit 401A for the air compressor 750 of the removal unit 7, and a driver unit 402A for the solenoid valve 753 of the removal unit 7.

[0056] Various switches are connected to the control unit 40A. The power on switch 410A is a switch that turns the power of the main unit 4A ON / OFF. The start switch 411A is a switch that starts automatic operation. The stop switch 412A is a switch that is effective in automatic operation mode and stops the movement of the main unit 4A. The lift switch 413A is a switch that is effective in manual operation mode and issues a hoisting command to the lifting machine 5. The lower switch 414A is a switch that is effective in manual operation mode and issues a lowering command to the lifting machine 5. The automatic / manual switch 415A is a switch that selects whether to set the main unit 4A to automatic operation mode or manual operation mode. The spray ON / OFF switch 416A is a switch that is effective in manual operation mode and selects whether to set the spray unit 6 to operation mode or non-operation mode. The scraper ON / OFF switch 417A is active in manual operation mode and selects whether to activate or deactivate the removal unit 7. The spray addition ON / OFF switch 418A is active in automatic operation mode and selects whether to activate the spray unit 6 when the removal unit 7 is in operation mode. Switches 410A to 418A are located on the control panel of the main unit 4A and are operated by the operator.

[0057] In automatic operation mode, the main unit 4A and the lifting machine 5 are linked via wireless communication, and the main unit 4A automatically moves while cleaning the surface of the guide section 211 of the guide rail 2. In automatic operation mode, during the forward journey when the main unit 4A moves from the upper end to the lower end or from the lower end to the upper end of the guide rail 2, the spray unit 6 is in operation mode (the removal unit 7 is in non-operation mode), and during the return journey, the removal unit 7 is in operation mode (the spray unit 6 is in either non-operation mode or operation mode). In manual operation mode, an operator rides in a gondola and moves with the main unit 4A, operating the control panel of the main unit 4A to clean the surface of the guide section 211.

[0058] A transmitter 420A is connected to the control unit 40A. The transmitter 420A has the function of transmitting hoisting commands (and related signals) and lowering commands (and related signals) to the receiving unit 504 of the lifting machine 5. For example, the transmitter 420A is in the form of a transmitter.

[0059] The control unit 50 of the lifting machine 5 comprises a driver unit 500 for the motor 502 and a driver unit 501 for the brake 503. A receiving unit 504 is connected to the control unit 50. The receiving unit 504 has the function of receiving hoisting commands (and related signals) and lowering commands (and related signals) from the transmitting unit 420A. For example, the receiving unit 504 is in the form of a receiver. As mentioned above, if the lifting machine 5 is a commercially available product, the receiver is equipped with a plug compatible with the pendant switch mounting part of the lifting machine 5, and can be used without modifying the lifting machine 5 itself by removing the pendant switch from the lifting machine 5 and installing the receiver in its place.

[0060] When the control unit 50 receives a hoisting command (or related signal) or a lowering command (or related signal) from the transmitter unit 420A, it releases the brake 503 via the driver 501 and drives the motor 502 in forward or reverse direction via the driver 500 to hoist or lower the wire. When the control unit 50 no longer receives a hoisting command (or related signal) or a lowering command (or related signal), it stops the operation of the motor 502 via the driver 500 and activates the brake 503 via the driver 501. In other words, the lifting machine 5 is remotely controlled by the main unit 4A. Alternatively, the lifting machine 5 may be remotely controlled by receiving a hoisting command (or related signal) or a lowering command (or related signal) from a remote control.

[0061] <Control method for the removal unit> As described above, in the removal unit 7, the three air cylinders 721, 721, 741 operate synchronously, whereby the operation (scraper contact) and non-operation (scraper separation) of the three scrapers 71, 71, 73 are controlled synchronously. On this premise, the control method of the removal unit 7 is characterized in that, as shown in FIG. 8, after the control unit 40A operates the air compressor 750 (step 3, hereinafter, steps are described as S), when receiving a signal related to the set value A from the pressure switch 752 (when S4 is YES), the control unit 40A stops operating the air compressor 750 (S5), and when receiving a signal related to the set value B (B < A) from the pressure switch 752 (when S6 is YES), the control unit 40A operates the air compressor 750 again (S3).

[0062] First, the control unit 40A sets and registers the set value and dead zone input by the operator on the screen of the pressure switch 752 (S1). As an example, the set value is a value within the range of 0.18 MPa or more and 0.20 MPa or less, and the dead zone is a value within the range of 0.02 MPa or more and 0.05 MPa or less. Further, the control unit 40A closes the solenoid valve 753 and hermetically closes the supply pipeline of the compressed air (S1). Further, the control unit 40A constantly or at a predetermined interval checks the presence or absence of an operation mode transition command (S2). The operation mode transition command is a command output (in the sequence) along with the switch operation of the start switch 411A in the automatic operation mode, and is a command output by the switch ON operation of the scraper ON / OFF changeover switch 417A in the manual operation mode.

[0063] When a command to switch operating modes is received (S2 is YES), the control unit 40A operates the air compressor 750 (S3). After the air compressor 750 is operated, the control unit 40A checks the pressure in the supply pipeline, which is measured continuously or at predetermined intervals using the pressure switch 752, continuously or at predetermined intervals, and checks continuously or at predetermined intervals whether this pressure is equal to or greater than the set value A (S4). Here, the set value A is the second set value or the first set value. When the pressure is equal to or greater than the set value A (S4 is YES), the control unit 40A stops operating the air compressor 750 (S5).

[0064] After the air compressor 750 stops operating, the control unit 40A checks whether the pressure in the supply pipeline has fallen below the set value B, either continuously or at predetermined intervals (S6). Here, the set value B is the first set value if the set value A is the second set value, and the third set value if the set value A is the first set value. If the internal pressure in the supply pipeline gradually decreases due to air leaking to the outside and falls below the set value B (S6 is YES), the control unit 40A determines that it is not possible to bring the scrapers 71, 71, and 73 into contact with the surface of the guide portion 211 of the guide rail 2 with sufficient contact pressure (pressing force) (i.e., the operating mode cannot be effectively maintained), and restarts the air compressor 750 (S3).

[0065] In this way, the air compressor 750 stops operating as needed and restarts as needed. During this time, the control unit 40A constantly or at predetermined intervals checks for the presence or absence of a command to transition to non-operation mode (S7). If a command to transition to non-operation mode is received (S7 is YES), the control unit 40A opens the solenoid valve 753 and opens the supply line to the atmosphere (S8). When the supply line is opened to the atmosphere and there is no load, the force of the elastic bodies 722, 722, 742 of the drive units 72, 72, 74 causes the scrapers 71, 71, 73 to enter non-operation mode. This completes the series of processes.

[0066] <Configuration of the ground joint device> The main component of the lapping device includes a lapping section as its functional part.

[0067] As shown in Figure 9, the sliding portion 8 is equipped with rotating grinding wheels 813, 813, 833 that can move toward and away from the surface of the guide portion 211 of the guide rail 2. In the operating mode, the sliding grinding wheels 813, 813, 833 are rotated and brought into contact with the surface of the guide portion 211, thereby polishing and sliding the surface of the guide portion 211 in accordance with the vertical movement of the device base, or, in the case where a movable base configured to move up and down within a predetermined range is provided on the device base, the movable base (hereinafter the same applies).

[0068] The sliding joint 8 comprises three polishing units 81, 81, and 83, and three drive units 82, 82, and 84. Each guide surface polishing unit 81 is supported by each drive unit 82, and the tip surface polishing unit 83 is supported by drive unit 84. The drive units 82 and 84 are mounted on a device base or a movable base.

[0069] The two polishing units (guide surface polishing units) 81, 81 consist of a right guide surface polishing unit (first guide surface polishing unit) 81A and a left guide surface polishing unit (second guide surface polishing unit) 81B, each of which polishes the guide surface 211a of the guide section 211. The other polishing unit (tip surface polishing unit) 83 is a unit that polishes the tip surface 211b of the guide section 211. The rotating grinding wheel 813 of the right guide surface polishing unit 81A makes contact with one of the guide surfaces 211a at the end face grinding surface. The rotating grinding wheel 813 of the left guide surface polishing unit 81B makes contact with the other guide surface 211a at the end face grinding surface. The rotating grinding wheel 833 of the tip surface polishing unit 83 makes contact with the tip surface 211b at the end face grinding surface.

[0070] As shown in Figure 10, the guide surface polishing unit 81 comprises a base 810, a motor 811, a grinding wheel holder 812, a rotating grinding wheel 813, and a belt 814.

[0071] The base 810 is a strip-shaped metal plate that is horizontally elongated in the front-to-back direction, has a predetermined width in the vertical direction, and is sufficiently rigid. The motor 811 is positioned so that its drive shaft is aligned along the left-to-right direction and is attached to the base end of the base 810. The grinding wheel holder 812 is attached to the front end of the base 810 so that it can rotate about the left-to-right direction. The grinding wheel holder 812 has an end face perpendicular to the axis of rotation. The belt 814 is wound around a pulley attached to the drive shaft of the motor 811 and a pulley attached coaxially to the grinding wheel holder 812.

[0072] The rotating grinding wheel 813 has a disc or cylindrical shape and is detachably attached to the end face of the grinding wheel holder 812. The rotating grinding wheel 813 has a circumferential surface around the rotation axis of the grinding wheel holder 812 and an end face perpendicular to the rotation axis of the grinding wheel holder 812. The circumferential surface and the end face have abrasive grains and constitute the grinding wheel surface. The end face is annular or circular. The rotating grinding wheel 813 rotates on a vertical plane parallel to the guide surface 211a of the guide rail 2 as the grinding wheel holder 812 rotates.

[0073] The drive unit 82 is provided for each guide surface polishing unit 81 and is a mechanism that moves the guide surface polishing unit 81 between an operating mode in which it is in contact with the guide surface 211a of the guide rail 2 and a non-operating mode in which it is separated from the guide surface 211a. The drive unit 82 comprises a linear guide 820 and an air cylinder 821 as an air-driven actuator.

[0074] The linear guide 820 is mounted along the left-right direction on the device base or movable base and supports the base 810 of the guide surface polishing unit 81 by carriage. This allows the two guide surface polishing units 81, 81 to move left-right, narrowing or widening the distance between them.

[0075] The air cylinder 821 is supplied with compressed air from an air compressor (not shown) through its first and second ports, respectively. The guide surface polishing unit 81 moves in the forward path to the operating mode by the piston extension operation of the air cylinder 821, which is operated by the supply of compressed air from the first port, and moves in the return path to the non-operating mode by the piston retraction operation of the air cylinder 821, which is operated by the supply of compressed air from the second port.

[0076] The combination of the right guide surface polishing unit 81A and its drive unit 82, and the combination of the left guide surface polishing unit 81B and its drive unit 82, are arranged parallel to each other with a gap between them in the left-right direction, and are arranged symmetrically in the left-right direction with respect to the front-back direction.

[0077] The tip surface polishing unit 83 comprises a base 830, a motor 831, a grinding wheel holder 832, and a rotating grinding wheel 833.

[0078] The base 830 is a metal block with a recess in part. The motor 831 is mounted to the rear of the base 830, with its drive shaft aligned along the front-rear direction. The grinding wheel holder 832 is mounted to the front of the base 830 so as to be rotatable about the front-rear direction, and is connected to the drive shaft of the motor 831 directly or indirectly via a coupling. The grinding wheel holder 832 has an end face perpendicular to the axis of rotation.

[0079] The rotating grinding wheel 833 has a disc or cylindrical shape and is detachably attached to the end face of the grinding wheel holder 832. The rotating grinding wheel 833 has a circumferential surface around the rotation axis of the grinding wheel holder 832 and an end face perpendicular to the rotation axis of the grinding wheel holder 832. The circumferential surface and the end face have abrasive grains and constitute the grinding wheel surface. The end face is annular or circular. The rotating grinding wheel 833 rotates on a vertical plane parallel to the tip surface 211b of the guide rail 2 as the grinding wheel holder 832 rotates.

[0080] The drive unit 84 is a mechanism that moves the tip surface polishing unit 83 between an operating mode in which it is in contact with the tip surface 211b of the guide rail 2 and a non-operating mode in which it is separated from the tip surface 211b. The drive unit 84 comprises a linear guide 840 and an air cylinder 841 as an air-driven actuator.

[0081] The linear guide 840 is mounted along the front-rear direction to the device base or movable base and supports the base 830 of the tip surface polishing unit 83 by carriage.

[0082] The air cylinder 841 is supplied with compressed air from an air compressor (not shown) through its first and second ports, respectively. The tip surface polishing unit 83 moves in the forward path to the operating mode by the piston extension operation of the air cylinder 841, which is operated by the supply of compressed air from the first port, and moves in the return path to the non-operating mode by the piston retraction operation of the air cylinder 841, which is operated by the supply of compressed air from the second port.

[0083] As shown in Figure 11, the three air cylinders 821, 821, and 841 receive compressed air from a single air compressor 850. The compressed air supply pipeline from the air compressor 850 to the three air cylinders 821, 821, and 841 branches off from a single main pipeline into three branch pipelines, each connected to a different air cylinder. The air circuit comprises the air compressor 850, a manifold 851, a pressure switch 852, and three switching valves 853, 853, and 853. The air compressor 850 is connected to the primary port of the manifold 851 via a pipeline. The air compressor 850 is equipped with check valves on both the primary side (air intake side) and the secondary side (air discharge side). The manifold 851 has multiple secondary ports. The first port (head-side port) and second port (rod-side port) of each air cylinder are connected via piping to the respective secondary ports of the manifold 851. The same type of pressure switch 852 as the pressure switch 752 is used and is connected via piping to another secondary port of the manifold 851. The switching valve 853 is provided on the branch piping of each air cylinder.

[0084] The switching valve 853 is a four-way solenoid valve having two primary ports and two secondary ports. One primary port of each switching valve 853 is connected via a pipeline to each secondary port of the manifold 851. One secondary port of each switching valve 853 is connected via a pipeline to the first port (head side port) of each air cylinder. The other secondary port of each switching valve 853 is connected via a pipeline to the second port (rod side port) of each air cylinder. When the switching valve 853 is switched to the operating side, the system switches to the first system (head side system), compressed air is supplied to the first cylinder chamber (head side cylinder chamber) of the air cylinder, and the air in the second cylinder chamber (rod side cylinder chamber) is exhausted, causing the piston to advance. On the other hand, when the switching valve 853 is switched to the non-operating side, the system switches to the second system (rod side system), compressed air is supplied to the second cylinder chamber, and the air in the first cylinder chamber is exhausted, causing the piston to retract.

[0085] Alternatively, a regulator may be installed in the branch pipeline of each air cylinder to adjust the pressure in each branch pipeline. In this case, the contact pressure (pressing force) of each rotating grinding wheel can be adjusted individually.

[0086] As shown in Figure 12, the main unit further includes a step detection unit 9 as a functional unit. The step detection unit 9 has the function of detecting steps that occur between the two guide surfaces 211a, 211a and between the two end surfaces 211b, 211b of the two guide sections 211, 211 at the connecting portion at both ends of the upper and lower guide rails 2, 2 during the movement stroke of the main unit on the guide rail 2.

[0087] The step detection unit 9 is equipped with three reflective laser displacement sensors 90, 90, and 92. Two sensors 90, 90 each measure the distance to the guide surface 211a. The other sensor 92 measures the distance to the tip surface 211b. If a step occurs, the measured value will change discontinuously, allowing the step to be detected. In addition to laser displacement sensors (distance measuring means), various known non-contact or contact type detection means can be used as the step detection unit.

[0088] The two sensors 90, 90 are each mounted to the device base or movable base via bracket 91, and sensor 92 is mounted to the device base or movable base via bracket 93. The two brackets 91, 91 are mounted so as to be adjustable in the left-right direction.

[0089] As shown in Figure 13, the control unit 40B of the main unit 4B controls the entire lapping apparatus, including the operation and deoperation of the lapping section 8. The control unit 40B includes driver units 400B to 402B for the motors 811, 811, and 831 of the lapping section 8, driver unit 403B for the air compressor 850 of the lapping section 8, and driver units 404B to 406B for the three switching valves 853, 853, and 853 of the lapping section 8.

[0090] Furthermore, by providing driver units 400B to 402B in each drive circuit of the three motors 811, 811, and 831, and enabling individual ON / OFF control of each motor, the operation (grinding wheel rotation) and non-operation (grinding wheel rotation stop) of the two guide surface polishing units 81, 81 and the tip surface polishing unit 83 can be controlled independently for each polishing unit. In addition, by providing driver units and enabling adjustment of the rotation speed of each motor, the rotation speed (grinding speed) of the rotating grinding wheels 813, 813, and 833 can be adjusted independently.

[0091] Various switches are connected to the control unit 40B. The power on switch 410B is a switch that turns the power of the main unit 4B ON / OFF. The start switch 411B is a switch that starts automatic operation. The stop switch 412B is a switch that is effective in automatic operation mode and stops the movement of the main unit 4B. The lift switch 413B is a switch that is effective in manual operation mode and issues a hoisting command to the lifting machine 5. The lower switch 414B is a switch that is effective in manual operation mode and issues a lowering command to the lifting machine 5. The automatic / manual changeover switch 415B is a switch that selects whether to set the main unit 4B to automatic operation mode or manual operation mode. The sliding ON / OFF changeover switches 416B~418B are switches that are effective in manual operation mode and select whether to set the sliding part 8 to operation mode or non-operation mode. Switches 410B to 418B are located on the control panel of the main unit 4B and are operated by the operator.

[0092] In automatic operation mode, the main unit 4B and the lifting machine 5 are linked via wireless communication, and the main unit 4B automatically moves while performing surface grinding of the guide section 211 of the guide rail 2. In automatic operation mode, when the step detection unit 9 detects a step while the main unit 4B is moving from the upper end to the lower end or from the lower end to the upper end of the guide rail 2, it stops, the grinding unit 8 enters operation mode, and the device base or movable base moves up and down within a predetermined range. This control is repeated along the entire length of the guide rail 2 each time a step is detected. In manual operation mode, an operator rides in a gondola and moves with the main unit 4B, operating the control panel of the main unit 4B to perform surface grinding of the guide section 211.

[0093] Although not shown in the diagram, if a movable base is provided, as an example, the vertical movement of the movable base is controlled by a drive unit consisting of a motor and a ball screw. In this case, the control unit 40B includes a motor driver unit, an upward switch, and a downward switch. The upward switch is a switch that is active in manual operation mode and issues an upward command to the motor. The downward switch is a switch that is active in manual operation mode and issues a downward command to the motor.

[0094] A transmitter 420B is connected to the control unit 40B. The transmitter 420B has the function of transmitting hoisting commands (and related signals) and lowering commands (and related signals) to the receiving unit 504 of the lifting machine 5. For example, the transmitter 420B is in the form of a transmitter.

[0095] The control unit 50 of the lifting machine 5 is as described in the above section <Configuration of the cleaning device>.

[0096] <Control method for the joint> As described above, in the folding section 8, the three air cylinders 821, 821, 841 can operate independently, whereby the operation (grinding wheel contact) and non-operation (grinding wheel separation) of each of the three grinding units 81, 81, 83 can be controlled independently. On this premise, the control method of the folding section 8 is characterized in that, as shown in FIG. 14, after the control unit 40B activates the air compressor 850 (S4), when it receives a signal related to the set value A from the pressure switch 852 (S5 is YES), it stops the operation of the air compressor 850 (S6), and when it receives a signal related to the set value B (B < A) from the pressure switch 852 (S7 is YES), it activates the air compressor 850 again (S4).

[0097] First, the control unit 40B sets and registers the set value and dead band input by the operator on the screen of the pressure switch 852 (S1). An example of the set value and dead band is as described above. Also, the control unit 40B sets each switching valve 853 to the non-operating side (S1). Further, the control unit 40B constantly or at a predetermined interval checks whether there is an operation mode transition command for at least one of the three grinding units 81, 81, 83 (S2). Note that the operation mode transition command is a command output (in the sequence) following the switch operation of the start switch 411B in the automatic operation mode, and is a command output by the switch ON operation of at least one of the three folding ON / OFF changeover switches 416B to 418B in the manual operation mode.

[0098] When a command to switch operating modes is received (S2 is YES), the control unit 40B switches the switching valve 853 of the corresponding polishing unit to the operating side (S3) and then operates the air compressor 850 (S4). After the air compressor 850 has been operated, the control unit 40B checks the pressure in the supply pipeline, which is measured continuously or at predetermined intervals using the pressure switch 852, continuously or at predetermined intervals, and checks continuously or at predetermined intervals whether this pressure is equal to or greater than the set value A (S5). Here, the set value A is the second set value or the first set value. When the pressure is equal to or greater than the set value A (S5 is YES), the control unit 40B stops the air compressor 850 from operating (S6).

[0099] After the air compressor 850 stops operating, the control unit 40B checks whether the pressure in the supply line has fallen below the set value B, either continuously or at predetermined intervals (S7). Here, the set value B is the first set value if the set value A is the second set value, and the third set value if the set value A is the first set value. If the internal pressure in the supply line gradually decreases due to air leaking to the outside and falls below the set value B (S7 is YES), the control unit 40B determines that it is not possible to bring the polishing units 81, 81, and 83 into contact with the surface of the guide portion 211 of the guide rail 2 with sufficient contact pressure (pressing force) (i.e., the operating mode cannot be effectively maintained), and restarts the air compressor 850 (S4).

[0100] In this way, the air compressor 850 stops operating as needed and restarts as needed. During this time, the control unit 40B constantly or at predetermined intervals checks for the presence or absence of a mode switching command for at least one of the three polishing units 81, 81, 83 (S8). If there is a mode switching command from operating mode to non-operating mode, or from non-operating mode to operating mode (S8 is YES), the control unit 40B switches the switching valve 853 of the corresponding polishing unit (S3) and then restarts the air compressor 850 (S4). Thereafter, this series of processes is repeated.

[0101] As described above, with the installation support device according to this embodiment, the air compressor stops operating for a period during which the operating pressure of the compressed air is sufficient while the predetermined processing is being performed. Therefore, with the installation support device according to this embodiment, power consumption can be reduced. This is a particularly significant effect when the device is powered by a built-in battery rather than an external power source.

[0102] Furthermore, while the lifespan of an air compressor tends to shorten as the continuous operating time increases, the installation support device according to this embodiment shortens the continuous operating time, thereby preventing a reduction in lifespan.

[0103] It should be noted that the present invention is not limited to the embodiments described above, and various modifications are possible without departing from the spirit of the invention.

[0104] In the above embodiment, compressed air is used for the piston extension movement of each air cylinder in the cleaning device, an elastic body is used for the piston retraction movement, and the present invention is applied to the piston extension movement. However, the present invention is not limited thereto. In the cleaning device, as with the lapping device, compressed air may be used for both the piston extension movement and the piston retraction movement, and the present invention may be applied to each. In this case, if the operation (scraper contact) and non-operation (scraper separation) of the three scrapers are to be synchronized, the air circuit shown in Figure 15 can be used as an example. Alternatively, if the operation and non-operation of the three scrapers are to be made independent, as with the lapping device, the air circuit shown in Figure 11 can be used as an example. Note that the air circuit shown in Figure 15 is configured to have two manifolds 751 and to be provided in the first system (head side system) and second system (rod side system) of the three air cylinders 721, 721, and 741, respectively. One pressure switch 752 is sufficient, but two may be provided and connected to each manifold 751.

[0105] Furthermore, in a lapping device, similar to a cleaning device, compressed air may be used for the piston extension movement, an elastic body for the piston retraction movement, and the present invention may be applied to the piston extension movement. In this case, as an example, the air circuit shown in Figure 6 may be used. In a lapping device, compressed air is also used for the piston retraction movement because the polishing unit is heavier than the scraper, and this ensures that the piston retracts reliably. If the elastic force of the elastic body is strong, then, as with a cleaning device, a piston retraction movement using an elastic body can naturally be adopted.

[0106] The above embodiment describes an example of processing the guide rail 2 for the cage. However, the present invention is not limited thereto. It goes without saying that the installation support device can also be used when processing the guide rail for the counterweight.

[0107] In the above embodiment, a lifting machine 5 is used as the drive unit for the main unit 4. However, the present invention is not limited thereto. The main unit itself may be a self-propelled type equipped with a drive unit.

[0108] In the above embodiment, the guide rail processing device is one of two types of installation support devices. However, the present invention is not limited thereto. Various devices can be used as the guide rail processing device. Furthermore, the present invention is not limited to the guide rail processing device, but is applicable to air circuits in passenger transport devices such as elevators, escalators, or moving walkways.

[0109] In the above embodiment, there are three processing units (scrapers 71, 71, 73, polishing units 81, 81, 83) mounted on one device. However, the present invention is not limited thereto. There may be one, two, or four or more processing units mounted on one device. If there is one processing unit, there is also one air cylinder. Even if there is only one air cylinder, it is optional whether or not a manifold is used.

[0110] In the above embodiment, the processing unit is brought into contact with the surface of the guide portion 211 of the guide rail 2 during operation. However, the present invention is not limited thereto. The processing unit may be brought close to the surface of the guide portion rather than in contact with it during operation. [Explanation of Symbols]

[0111] 1...Hoistway, 1a...Wall surface, 2...Guide rail, 20...Base, 21...Protruding part, 210...Connecting part, 211...Guide part, 211a...Guide surface, 211b...End surface, 22...Convex ridge, 23...Concave groove, 25...Connecting material, 250...Fixing device, 27...Guide rail support, 270...Wall bracket, 271...Rail bracket, 273...Rail clip, 274...Fixing device, 3...Guide rail installation support device, 4...Main unit, 4A...Main unit of guide rail cleaning device, 40A...Control unit, 400A~402A...Driver unit, 410A...Power on switch, 411A...Start switch, 412A...Stop switch, 413A...Up switch, 414A...Down switch Itchi, 415A...Automatic / Manual Changeover Switch, 416A...Spray ON / OFF Changeover Switch, 417A...Scraper ON / OFF Changeover Switch, 418A...Spray Additional ON / OFF Changeover Switch, 420A...Transmitter Unit, 4B...Main Unit of Guide Rail Laminating Device, 40B...Control Unit, 400B~406B...Driver Unit, 410B...Power On Switch, 411B...Start Switch, 412B...Stop Switch, 413B...Lifting Switch, 414B...Lowering Switch, 415B...Automatic / Manual Changeover Switch, 416B~418B...Laminating ON / OFF Changeover Switch, 420B...Transmitter Unit, 5...Lifting Machine (Sub-device), 50...Control Unit, 500,501…Driver unit, 502…Motor, 503…Brake, 504…Receiver unit, 6…Injection unit, 60…Nozzle, 61…Supply unit, 7…Removal unit, 70…Base, 71…Guide surface scraper (processing part), 710…Holder, 711…Blade, 71A…Right guide surface scraper, 71B…Left guide surface scraper, 72…Drive unit, 720…Linear guide, 721…Air cylinder, 722…Elastic body, 73…Tip surface scraper (processing part), 730…Holder, 731…Blade, 74…Drive unit, 740…Linear guide, 741…Air cylinder, 742…Elastic body, 750…Air compressor, 751…Manifold, 752…Pressure switch, 753…Solenoid valve, 754…Switching valve, 8…Seaming part, 81…Guide surface polishing unit (Processing unit), 81A...Right guide surface polishing unit (first guide surface polishing unit), 81B...Left guide surface polishing unit (second guide surface polishing unit), 810...Base, 811...Motor, 812...Grinding wheel holder, 813...Rotating grinding wheel, 814...Belt, 82...Drive unit, 820...Linear guide, 821...Air cylinder, 83...Tip surface polishing unit (processing unit), 830...Base, 831...Motor, 832...Grinding wheel holder, 833...Rotating grinding wheel, 84...Drive unit, 840...Linear guide, 841...Air cylinder, 850...Air compressor, 851...Manifold, 852...Pressure switch, 853...Switching valve, 9...Step detection unit, 90...Laser displacement sensor, 91...Bracket, 92...Laser displacement sensor, 93...Bracket,

Claims

1. An elevator guide rail processing device comprising: a processing unit that performs predetermined processing on a guide rail; a drive unit that moves the processing unit between an operating mode in which it contacts or approaches the surface of the guide rail and a non-operating mode in which it moves away from the surface of the guide rail, with an air cylinder as one component; and a control unit, As an air circuit for an air cylinder, Air compressor and The system includes a pressure switch that allows setting at least two setpoints A and B (A and B being values ​​that effectively maintain the air cylinder in operating mode, and A > B) for the pressure in the compressed air supply pipeline, and which outputs a signal to the control unit when the pressure in the compressed air supply pipeline, while in communication with the air cylinder, reaches either of the setpoints. The air compressor is controlled by the control unit to stop when it receives a signal related to set value A after operation, and to restart when it receives a signal related to set value B. Elevator guide rail processing device.

2. The pressure switch has the ability to set a first setpoint and a differential, and has the function of outputting a signal when the pressure in the compressed air supply pipeline, while in communication with the air cylinder, reaches the first setpoint, and the function of outputting a signal when it reaches a second setpoint, which is the first setpoint plus a differential. Setting value A is the second setting value, and setting value B is the first setting value. The elevator guide rail processing device according to claim 1.

3. The pressure switch has the ability to set a first setpoint and a differential, and has the function of outputting a signal when the pressure in the compressed air supply pipeline, while in communication with the air cylinder, reaches the first setpoint, and the function of outputting a signal when it reaches a third setpoint, which is the first setpoint minus the differential. Setting value A is the first setting value, and setting value B is the third setting value. The elevator guide rail processing device according to claim 1.

4. The device includes a scraper that can move toward and away from the surface of the guide rail, and in the operating mode, the scraper is brought into contact with the surface of the guide rail, thereby providing a removal unit as a processing unit to remove deposits from the surface of the guide rail as the device moves. An elevator guide rail processing device according to any one of claims 1 to 3.

5. The device includes a rotating grinding wheel that can move toward and away from the surface of the guide rail, and in the operating mode, the grinding wheel rotates and comes into contact with the surface of the guide rail, thereby polishing and lapping the surface of the guide rail as the device moves, with the processing section being provided. An elevator guide rail processing device according to any one of claims 1 to 3.

6. An air circuit in a passenger transport device such as an elevator, escalator, or moving walkway, Air cylinder and Air compressor and The system includes a pressure switch that allows setting at least two setpoints A and B (A and B being values ​​that effectively maintain the air cylinder in operating mode, and A > B) for the pressure in the compressed air supply pipeline, and which outputs a signal to the control unit when the pressure in the compressed air supply pipeline, while in communication with the air cylinder, reaches either of the setpoints. The air compressor is controlled by the control unit to stop when it receives a signal related to set value A after operation, and to restart when it receives a signal related to set value B. Air circuit in passenger transport equipment.

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