Hoistway work equipment

Abstract

The present invention aims to provide an in-hoistway working device that can prevent damage caused by operational errors. [Solution] The present invention is characterized in that it has a work unit that works on a work object in a hoistway, a main body unit that can move up and down the hoistway, and a lifting input unit that inputs up and down instructions to the main body unit, and when there is an input to the lifting input unit while the work unit is working, the main body unit does not move up or down and the work unit stops working.

Description

[Technical field]

[0001] The present invention relates to an in-hoistway work device for performing work in an elevator hoistway. [Background technology]

[0002] Conventionally, there has been known an in-hoistway work device (hereinafter also simply referred to as a "work device") that automatically positions a guide rail (work object) when the elevator guide rail is installed in a hoistway (see Patent Document 1).

[0003] As shown in Figure 5, this working device 100 comprises a jig 101 that holds a pair of guide rails G at both ends, a jig holder 102 that fixes both ends by pressing them horizontally against a mountable surface of the opposing side of the elevator shaft on which the guide rails G can be installed, a positioning mechanism 103 that is arranged between the jig 101 and the jig holder 102 and electrically changes and fixes the relative position of the jig 101 with respect to the jig holder 102, and a control device 104 that automatically controls the positioning operation by the positioning mechanism 103 so that the jig 101 takes a predetermined relative position with respect to a reference installed in the elevator shaft.

[0004] When positioning the guide rail G (so-called centering work), this working device 100 is installed on a working floor 106 suspended from a lifting machine 105 arranged at the top of the elevator shaft. The lifting machine 105 raises and lowers the working floor 106 to change the vertical position of the working floor 106, and with the working floor 106 stopped at this changed position, the working device 100 performs automatic positioning (centering work) of the guide rail G. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] JP 2019-142622 A Summary of the Invention [Problem to be solved by the invention]

[0006] In the above-mentioned working device 100, if an operator operates the lifting machine 105 in an attempt to operate the working device 100 while the working device 100 is performing work, or operates the lifting machine 105 while forgetting that the working device 100 is performing work, and the work platform is raised or lowered due to an operational error by the operator, the working device 100 or the work object may be damaged.

[0007] Therefore, an object of the present invention is to provide an in-hoistway working device that can prevent damage caused by operational errors. [Means for solving the problem]

[0008] The in-hoistway working device of the present invention is a main body having a working section that works on a work object in the hoistway and that can ascend and descend the hoistway; a lifting / lowering input unit for inputting an upward command and a downward command for the main body unit, When the input is received from the lift input unit while the working unit is performing the work, the main body unit does not lift or lower and the working unit stops performing the work.

[0009] With this configuration, even if an attempt is made to raise or lower the main body unit while the working unit is working, the main body unit will not raise or lower and the working unit will stop the work, allowing an operator to check whether to raise or lower the main body unit or operate the working unit, thereby preventing damage due to operating errors.

[0010] In addition, in the hoistway working device, The working unit includes: An action part that comes into contact with the work object during the work; A position changing unit capable of changing the position of the action unit, When the working unit stops the work in response to the input to the lift input unit, the action unit may move to a retreat position that is a position away from the work target.

[0011] According to this configuration, the action part that comes into contact with the work object during work moves to an evacuation position (a position away from the work object), thereby preventing damage caused by the action part coming into contact with the work object when the work part is stopped.

[0012] In addition, the in-hoistway working device is a detection unit capable of detecting that the action unit is in the retracted position, When the working unit stops the work due to the input to the lifting / lowering input unit, if the detection unit detects that the action unit is in the retracted position, the main body unit may be raised or lowered based on the input to the lifting / lowering input unit.

[0013] According to this configuration, the main body part rises and falls after it is detected that the acting part is in the retracted position (i.e., that the acting part is away from the work object), thereby reliably preventing damage to the working part or the work object when the main body part rises and falls after the working part has stopped.

[0014] In addition, in the hoistway working device, The working unit may be in an inoperable state while the main body unit is ascending or descending, and may be in an operable state when the main body unit stops ascending or descending.

[0015] According to this configuration, even if the working unit is operated by mistake while the main body unit is being raised or lowered, the working unit is in a state where it cannot perform any operation while being raised or lowered, so that damage to the working unit, etc. can be prevented.

[0016] In addition, the in-hoistway working device is a work input unit for inputting instructions to the work unit, The working unit may be configured not to start the work without an input from the work input unit after the main body unit stops the lifting and lowering.

[0017] According to this configuration, the working unit does not start work until there is an input from the work input unit after the lifting and lowering of the main body unit has stopped, so that the working unit can perform work more safely.

[0018] In addition, the in-hoistway working device is A lifting means for lifting and lowering the main body portion is provided, The lifting means may lift the main body based on the input from the lifting input section.

[0019] In this way, by providing the lifting means separately from the main body, the structure of the main body can be simplified and made smaller. Effect of the Invention

[0020] As described above, according to the present invention, it is possible to provide an in-hoistway working device that can prevent damage caused by operational errors. [Brief description of the drawings]

[0021] [Figure 1] FIG. 1 is a schematic diagram for explaining the configuration of an in-hoistway working device according to this embodiment. [Diagram 2] FIG. 2 is a functional block diagram of the in-hoistway working device. [Diagram 3] FIG. 3 is a flow chart showing the operation of the in-hoistway working device. [Figure 4] FIG. 4 is a functional block diagram of an in-hoistway working device according to another embodiment. [Diagram 5] FIG. 5 is a schematic diagram for explaining the configuration of a conventional in-hoistway working device. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0022] Hereinafter, one embodiment of the present invention will be described with reference to FIGS.

[0023] 1, the in-hoistway working device 1 according to this embodiment has a working robot (working unit) 3 that works on a work target in the hoistway S, and includes a main body unit 2 that can move up and down the hoistway, and a lift controller (lift input unit) 6 that inputs up and down commands to the main body unit 2. The in-hoistway working device 1 of this embodiment performs work within the hoistway S, for example, fixing a guide rail to the wall surface of the hoistway with anchor bolts. In this work, the work target is the guide rail, a rail bracket for fixing the guide rail to the wall surface of the hoistway S, the anchor bolt, the wall surface of the hoistway S, etc.

[0024] Specifically, the in-hoistway working device 1 includes a main body 2 capable of ascending and descending within the hoistway S, a lifting means 5 for raising and lowering the main body, and a lifting controller 6 for operating the lifting means 5.

[0025] The main body 2 has a work robot 3 and a work floor 4 on which the work robot 3 is placed. The work floor 4 has a floor portion 41 that extends horizontally, and a fence 42 that extends upward from the periphery of the floor portion 41.

[0026] The working robot 3 has an action unit 31 that comes into contact with a work target during work, a position change unit 32 that can change the position of the action unit 31, a control unit 33 that controls the work robot 3 etc., and a robot operation unit (work input unit) 34 that inputs instructions to the work robot 3. The work robot 3 also has a home position detection unit (detection unit) 35 that can detect when the action unit 31 is in the home position (retracted position).

[0027] The action part 31 is a jig, a gripping part, etc., and is a part that comes into contact with and acts on a work target when the working robot 3 works.

[0028] The position change unit 32 includes a robot arm, an actuator, etc., and changes the position of the action unit 31. The position change unit 32 in this embodiment is configured by a robot arm, and the action unit 31 is disposed at the tip of this robot arm.

[0029] The robot operation unit 34 is a controller or operation panel for operating the robot, and the robot operation unit 34 in this embodiment has a work start button 341.

[0030] The home position detection unit 35 outputs a detection signal when it detects that the action unit 31 is in a retracted position away from the work target. In this embodiment, the retracted position is the initial position (home position) when the power is turned on and the work robot 3 is ready to work.

[0031] The control unit 33 is connected to the robot operation unit 34 and the lift controller 6, and controls the working robot 3 to perform a predetermined task (working operation) through input operations of the robot operation unit 34, and controls the lifting means 5 through input operations of the lift controller 6. When an input is received from the lift controller 6 while the working robot 3 is working, the control unit 33 of this embodiment controls each component of the in-hoistway working device 1 so that the main body 2 does not rise or fall and the working robot 3 stops working. Specific control of each component by the control unit 33 will be described later, along with specific operations of the in-hoistway working device 1 when working in the hoistway S.

[0032] The lifting means 5 is a lifting machine that is placed at the top of the hoistway S. This lifting means 5 raises and lowers the working platform 4 in a suspended state. The lifting means 5 in this embodiment is connected to the control unit 33 of the work robot 3, and receives an up signal or a down signal from the control unit 33 to perform hoisting or lowering (i.e., raising or lowering the working platform 4).

[0033] The lift controller 6 is a controller for lifting and lowering the work floor 4 by the lift means 5, and has an up button and a down button. The lift controller 6 of this embodiment continues to output an up command signal while the up button is pressed, and continues to output a down command signal while the down button is pressed.

[0034] Next, a specific operation of the in-hoistway working device 1 will be described with reference to FIG.

[0035] When the worker inputs an instruction from the lift controller 6 (for example, presses a rise button) while the work robot 3 is working in the elevator S, the lift controller 6 outputs a rise instruction signal to the control unit 33.

[0036] When the control unit 33 receives an upward command signal from the lift controller 6 while the work robot 3 is working, i.e., when it detects an input from the lift controller 6 (step S1), it stops the work (movement for work) of the work robot 3 (step S2).

[0037] Next, the control unit 33 drives the position change unit 32 to return the action unit 31 to the home position (step S3). Then, when the home position detection unit 35 detects that the action unit 31 is at the home position (step S4: Yes), the control unit 33 controls the lifting means 5 to lift the work platform 4, that is, starts hoisting by the lifting machine (step S6). The worker has been pressing the lift button of the lifting controller 6 since step S1.

[0038] On the other hand, when the home position detection unit 35 cannot detect that the action unit 31 is in the home position (step S4: No), the control unit 33 repeats steps S3 to S5 until a predetermined time has elapsed (step S5: No). Then, when the home position detection unit 35 cannot detect that the action unit 31 is in the home position (step S4: No) and the predetermined time has elapsed (step S5: Yes), the control unit 33 stops the in-hoistway working device 1.

[0039] When the work floor 4 starts to rise, as long as the up button of the lift controller 6 is kept pressed, i.e., while the control unit 33 is receiving a up command signal from the lift controller 6 (step S7: Yes), the control unit 33 controls the lift means 5 to continue raising the work floor 4, and when the work floor 4 reaches the desired height position, the worker stops pressing the up button of the lift controller 6, i.e., when the output of the up command signal by the lift controller 6 stops (step S7: No), the control unit 33 controls the lift means 5 to stop the work floor 4 (step S8).

[0040] Furthermore, in this embodiment, even if there is an input to the robot operation unit 34 while the work floor 4 is rising or falling, the control unit 33 does not accept this input (i.e., keeps the work robot 3 stopped), but accepts the input when there is an input to the robot operation unit 34 after the rising or falling of the work floor 4 has stopped (i.e., controls the work robot 3 to perform an action corresponding to the input).

[0041] After the work floor 4 stops, the control unit 33 maintains the work robot 3 in a stopped state until the work start button 341 of the robot operation unit 34 is pressed (step S9: No), and when the work start button 341 of the robot operation unit 34 is pressed (step S9: Yes), the work robot 3 starts working (step S10).

[0042] The above-described in-hoistway working device 1 has a working robot (working unit) 3 that works on a work target in the hoistway S, and is equipped with a main body unit 2 that can move up and down the hoistway S, and a lifting controller (lifting input unit) 6 that inputs up and down commands to the main body unit 2. When an input is received from the lifting controller while the working robot 3 is working, the main body unit 2 does not move up or down and the working robot 3 stops working.

[0043] With this configuration, even if the working robot 3 attempts to raise or lower the main body 2 while working, the main body 2 will not rise or fall and the working robot 3 will stop working, allowing the worker or the like to check whether to raise or lower the main body 2 or operate the working robot 3, thereby preventing damage to the working robot 3, the work object, etc. due to operational errors. In other words, by stopping both the raising and lowering of the main body 2 and the work of the working robot 3, it is possible to check whether the worker operated the lift controller 6 despite intending to operate the working robot 3, or whether he or she operated the lift controller 6 forgetting that the working robot 3 was working, etc.

[0044] Furthermore, in the elevator shaft working device 1 of this embodiment, the working robot (working unit) 3 has an action unit 31 that comes into contact with the work object during work, and a position change unit 32 that can change the position of the action unit 31, and when the working robot 3 stops working due to an input to the elevator controller (lifting input unit) 6, the action unit 31 moves to a home position (retracted position), which is a position away from the work object.

[0045] According to this configuration, the action part 31 that comes into contact with the work object during work moves to the home position (a position away from the work object), thereby preventing damage to the work robot 3, the work object, etc. that would be caused by the action part 31 coming into contact with the work object when the work robot 3 is stopped.

[0046] The in-hoistway working device 1 of this embodiment also includes a home position detection unit (detection unit) 35 capable of detecting that the action unit 31 is in a home position (retracted position). When the work robot (working unit) 3 stops working due to an input to a lift controller (lift input unit), if the home position detection unit 35 detects that the action unit 31 is in the home position, the main body unit 2 moves up and down based on the input to the lift controller 6.

[0047] According to this configuration, the main body 2 rises and falls after it is detected that the action part 31 is in the home position (i.e., that the action part 31 is away from the work object), thereby reliably preventing damage to the work robot 3 or the work object when the main body 2 rises and falls after the work robot 3 is stopped.

[0048] Furthermore, in the in-hoistway working device 1 of this embodiment, the working robot (working unit) 3 is in a state where it cannot work while the main body unit 2 is ascending or descending, and becomes in a state where it can work when the main body unit 2 stops ascending or descending.

[0049] With this configuration, even if the work robot 3 is operated by mistake while the main body 2 is being raised or lowered, the work robot 3 is in a state where it cannot work while being raised or lowered, so damage to the work robot 3 etc. can be prevented.

[0050] Furthermore, the elevator shaft working device 1 of this embodiment is equipped with a work start button (work input unit) 341 for inputting instructions to the working robot (working unit) 3, and the working robot 3 will not start working without input from the work start button 341 after the main body unit 2 has stopped rising and falling.

[0051] With this configuration, the working robot 3 will not start working until an input has been made from the work start button 341 after the main body 2 has stopped moving up and down, making it possible for the working robot 3 to work more safely.

[0052] In addition, the hoistway working device 1 of this embodiment is equipped with a lifting means 5 that raises and lowers the main body 2, and the lifting means 5 raises and lowers the main body 2 based on input from a lifting controller (lifting input section) 6.

[0053] In this way, by providing the lifting means 5 separately from the main body 2, the structure of the main body 2 can be simplified and made smaller.

[0054] The in-hoistway working device of the present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the scope of the present invention. For example, the configuration of one embodiment can be added to the configuration of another embodiment, and part of the configuration of one embodiment can be replaced with the configuration of another embodiment. Furthermore, part of the configuration of one embodiment can be deleted.

[0055] The work target of the in-hoistway working device 1 in the above embodiment is, but is not limited to, a guide rail, a rail bracket, an anchor bolt, and a wall surface of the hoistway S. The work target may be anything that can be worked on in the hoistway, such as a building beam of the hoistway S, parts that configure the door device at the landing of each floor, a hoisting machine for the car, a guide rail for the counterweight, or the like that is arranged in the hoistway.

[0056] Furthermore, in the in-hoistway working device 1 of the above embodiment, when there is an input from the lift input unit (lift controller in the above embodiment) 6 while the working unit (work robot in the above embodiment) 3 is working, the working unit 3 stops working (power is not cut off), but the present invention is not limited to this configuration and may be configured such that the power to the working unit 3 is cut off. In this configuration, the power to the working unit 3 must be turned on when the working unit 3 is to be moved again.

[0057] In addition, in the in-hoistway working device 1 of the above embodiment, when there is an input from the lift input unit 6 while the working unit 3 is working, the main body unit 2 moves up and down by continuing to input to the lift input unit 6 (in the example of the above embodiment, the up button or the down button is continuously pressed) after the working unit 3 stops working, but this configuration is not limited. A configuration in which when there is an input from the lift input unit 6 while the working unit 3 is working, the main body unit 2 also remains stopped after the working unit 3 stops working may also be used.

[0058] In addition, in the in-hoistway working device 1 of the above embodiment, when an input is received from the lift input unit 6 while the working unit 3 is working, the working unit 3 stops working, and after the main body unit 2 rises and falls and stops, the working unit 3 does not start working until the work start button 341 is pressed, but this configuration is not limited. The working unit 3 may be configured to automatically start working when a predetermined time has elapsed after the main body unit 2 rises and falls and stops.

[0059] Furthermore, the working unit 3 in the above embodiment is a working robot in which the part that changes the position of the acting unit 31 is a robot arm (an arm having multiple joints), but is not limited to this configuration. The working unit 3 may also be a working device or the like (for example, a guide rail installation device) in which the part that changes the position of the acting unit 31 is configured by an actuator or the like. In other words, the working unit 3 may be any device that performs work on a work target in the elevator S.

[0060] In addition, the working unit 3 in the above embodiment is provided with one acting unit 31 and one position changing unit 32, but is not limited to this configuration. The working unit 3 may have a plurality of acting units 31 and a plurality of position changing units 32.

[0061] In the working unit 3 of the above embodiment, the retracted position to which the action unit 31 moves (towards) when an input is made to the lifting / lowering input unit 6 during work is the home position (initial position), but this is not limited to the configuration. The retracted position may be a position different from the home position and away from the work target. In addition, in the case of a configuration in which the power supply to the working unit 3 is cut off when an input is made to the lifting / lowering input unit 6 during work by the working unit 3, the action unit 31 may be moved to the retracted position by the elastic force of an elastic member such as a spring.

[0062] Moreover, the main body 2 in the above embodiment has the working unit 3 and the work floor 4, but is not limited to this configuration. The main body 2 may have the working unit (a device that performs work) 3 and the work floor (a part that is raised and lowered by the lifting means 5) 4 integrated together.

[0063] In addition, the main body 2 in the above embodiment is raised and lowered by the lifting means 5 that is separate from the main body 2, but the present invention is not limited to this configuration. The main body 2 may be provided with the lifting means 5 and may be self-propelled on a guide rail or the like. In addition, when installing an elevator, a temporary car and a hoist for the car may be used as the working floor 4 and the lifting means 5.

[0064] Further, in the in-hoistway working device 1 of the above embodiment, the lift input unit 6 and the robot operation unit 34 are arranged separately, but they may be arranged integrally (eg, on the same operation panel).

[0065] In addition, in the in-hoistway working device 1 of the above embodiment, the lift input unit 6 is configured so that the main body unit 2 continues to lift or lower only while the lift or lower button is being pressed, but the present invention is not limited to this configuration. For example, the lift input unit 6 may be configured so that pressing the lift or lower button once causes the main body unit 2 to start lifting or lowering, and pressing the stop button causes the main body unit 2 to stop lifting or lowering.

[0066] In the in-hoistway working device 1 of the above embodiment, the working unit 3 has the home position detector 35, but is not limited to this configuration. The working unit 3 does not have to have the home position detector 35.

[0067] The in-hoistway working device 1 may also have a lamp that turns on when it is detected that the action part 31 is in the retreated position (home position). This allows the worker or the like to recognize that the main body part 2 is in a movable state.

[0068] The in-hoistway working device 1 may also have a lamp that lights up when the work start button 341 is not pressed after the lifting and lowering of the main body 2 has stopped. This makes it possible to prompt a worker or the like to operate the work start button 341 after the lifting and lowering of the main body 2 has stopped.

[0069] In the in-hoistway working device 1 of the above embodiment, the lift input unit (lift controller) 6 is connected to the control unit 33 of the working unit 3, and the up instruction signal or the down instruction signal from the lift input unit 6 is transmitted to the lift means 5 via the control unit 33 of the working unit 3, but the configuration is not limited to this. For example, as shown in FIG. 4, the lift input unit (lift controller) 6 of the in-hoistway working device 1A may be connected to the lift means 5, and the up or down instruction from the lift input unit 6 may be transmitted directly to the lift means 5. In this case, when the lift means 5 raises or lowers the main body 2 in response to an input from the lift input unit 6, the lift means 5 inquires of the control unit 33A of the working unit 3 as to whether or not the main body 2 can be raised or lowered, and after the control unit 33A determines whether or not the main body 2 can be raised or lowered, the control unit 33A raises or lowers the main body 2 by receiving an authorization signal from the control unit 33A. The lift means 5 and the control unit 33A transmit and receive information or signals by wire or wirelessly. [Explanation of symbols]

[0070] 1, 1A...working device in elevator shaft, 2...main body, 3...working robot (working unit), 31...action unit, 32...position change unit, 33, 33A...control unit, 34...robot operation unit (work input unit), 341...work start button, 35...home position detection unit (detection unit), 4...working floor, 41...floor, 42...fence, 5...lifting means, 6...lifting controller (lifting input unit), 100...working device, 101...jig, 102...jig receiver, 103...positioning mechanism, 104...control device, 105...lifting machine, 106...working floor, G...guide rail, S...elevation shaft

Claims

1. a main body having a working section that works on a work object in the hoistway and that can ascend and descend the hoistway; a lifting / lowering input unit for inputting an upward command and a downward command for the main body unit, When the input is received from the lift input unit while the working unit is performing the work, the main body does not lift or lower and the working unit stops the work.

2. The working unit includes: An action part that comes into contact with the work object during the work; A position changing unit capable of changing the position of the action unit, The in-hoistway working device according to claim 1 , wherein when the input to the lift input unit causes the working unit to stop the work, the action unit moves to a retreat position that is a position away from the work target.

3. a detection unit capable of detecting that the action unit is in the retracted position, 3. The in-hoistway working device according to claim 2, wherein when the input to the lifting / lowering input unit causes the working unit to stop working, and the detection unit detects that the action unit is in the retracted position, the main body unit lifts or lowers based on the input to the lifting / lowering input unit.

4. The in-hoistway working device according to claim 3 , wherein the working unit is in an inoperable state while the main body unit is ascending or descending, and is in an operable state when the main body unit stops ascending or descending.

5. a work input unit for inputting instructions to the work unit, The in-hoistway working device according to claim 4 , wherein the working unit does not start the work without an input from the work input unit after the main body unit stops the lifting and lowering.

6. A lifting means for lifting and lowering the main body portion is provided, The in-hoistway working device according to any one of claims 1 to 5, wherein the lifting means lifts and lowers the main body based on the input from the lifting input section.

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