Elevator guide rail installation device and guide rail installation method

Abstract

To provide a guide rail installation device capable of reducing the workloads of fixing it to a work cage housed in a hoistway and of dismantling it.SOLUTION: A guide rail installation device is the device to adjust the position of a pair of guide rails arranged along two opposite lateral walls of the inner walls of an elevator hoistway. The guide rail installation device comprises a pair of distance adjusting members for a front wall and a pair of distance adjusting members for a lateral wall, where the pair of the distance adjusting members for the front wall is fixed to a working cage housed in freely elevated / lowered manner in the hoistway, adjusts the distance in a first direction between the front wall substantially perpendicular to the two lateral walls of the inner walls of the hoistway and the working cage, and adjusts the position in the first direction of the guide rail sandwiched by a guide shoe fixed to the working cage, and the pair of distance adjusting members for the lateral wall is fixed to at least one of the pair of the guide rails and adjusts the position of the guide rail in the second direction by adjusting the distance between the two lateral walls and each guide rail.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a guide rail installation device and a guide rail installation method for installing elevator guide rails in a hoistway. [Background technology]

[0002] A technique for installing guide rails in an elevator hoistway is disclosed in the following Patent Document 1. This Patent Document 1 states that "a support mechanism 45 fixed to the car frame (or reference frame) 17 supports the building material 42 in the hoistway 11 and positions the frame 1 including the car frame 17 with reference to the piano wire 14, and as a result, the guide rail 10 fixed to the frame 1 by the rail gripping mechanism 3 is positioned." [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 05-278968 Summary of the Invention [Problem to be solved by the invention]

[0004] However, the support mechanism for positioning the guide rail is fixed integrally to the car frame and is large and heavy, so that the guide rail installation device, including the support mechanism, cannot be fixed to the car frame and dismantled by a single person, which requires a large workload.

[0005] SUMMARY OF THE PRESENT EMBODIMENTS Accordingly, an object of the present invention is to provide a guide rail installation device and a guide rail installation method that are capable of reducing the workload involved in fixing to and dismantling a work car housed in a hoistway. [Means for solving the problem]

[0006] In order to solve the above problems, for example, the configurations described in the claims are adopted. The present application includes multiple means for solving the above-mentioned problems. One example is a guide rail installation device for adjusting the position of a pair of guide rails arranged along two opposing side walls of the inner peripheral walls of an elevator hoistway, the guide rail installation device comprising: a pair of front wall distance adjustment members fixed to a work car accommodated in the hoistway so as to be able to rise and fall freely, adjusting the distance in a first direction between the work car and a front wall that is approximately perpendicular to the two side walls of the inner peripheral walls of the hoistway, and adjusting the position in the first direction of the guide rails clamped by guide shoes fixed to the work car from the first direction; and a side wall distance adjustment member fixed to at least one of the pair of guide rails, adjusting the distance between the two side walls and each of the guide rails, thereby adjusting the position in the second direction of each of the guide rails. Effect of the Invention

[0007] According to the present invention, it is possible to provide a guide rail installation device and a guide rail installation method that can reduce the workload of fixing to and dismantling a work car housed in a hoistway. [Brief description of the drawings]

[0008] [Figure 1] 1 is a top view showing a configuration of a guide rail installation device according to an embodiment. [Diagram 2] FIG. 2 is a top view for explaining an installation environment of the guide rail installation device according to the embodiment. [Diagram 3] 1 is an enlarged view (part 1) showing a main part of a guide rail installation device according to an embodiment. [Figure 4] 4 is an enlarged view (part 2) showing a main part of the guide rail installation device according to the embodiment. FIG. [Diagram 5] 4 is a flowchart (part 1) showing a guide rail installation method using the guide rail installation device according to the embodiment. [Figure 6]6 is a flowchart (part 2) showing the guide rail installation method using the guide rail installation device according to the embodiment. [Figure 7] 11A to 11C are top views illustrating a guide rail installation method according to an embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] Hereinafter, an embodiment of the elevator guide rail installation device and the guide rail installation method of the present invention will be described in detail with reference to the drawings. In the following embodiments, the elevator guide rail installation device will be described first, and then the guide rail installation method using the guide rail installation device will be described.

[0010] <Elevator guide rail installation device> FIG. 1 is a top view showing the configuration of a guide rail installation device 1 according to an embodiment. FIG. 2 is a top view for explaining the installation environment of the guide rail installation device according to the embodiment, and is a view of the inside of an elevator hoistway 2 before the guide rail installation device 1 shown in FIG. 1 is installed. Furthermore, FIG. 3 and FIG. 4 are enlarged views (part 1) and (part 2) showing the main parts of the guide rail installation device 1 according to the embodiment, and are enlarged views of part [A] in FIG. 1. The guide rail installation device 1 described using these figures is a device for installing a pair of guide rails 3 on the inner peripheral wall 21 of the elevator hoistway 2. The guide rail installation device 1 positions the guide rails 3 based on a piano wire 5 suspended in the hoistway 2. The work car 4 is suspended by a rope 6. In addition, a guide shoe 7 described below is fixed to the work car 4. Here, before explaining the configuration of the guide rail installation device 1, the installation environment of the guide rail installation device 1 will be explained.

[0011] [Elevator 2] The elevator shaft 2 is a space surrounded on, for example, four sides by inner peripheral walls 21. The inner peripheral wall 21 is composed of two opposing wall portions (hereinafter referred to as side walls 21s) on which the guide rails 3 are arranged, a wall portion (hereinafter referred to as front wall 21f) that is perpendicular to the side walls 21s and has the landing opening 2a, and a wall portion (hereinafter referred to as rear wall 21b) that faces the front wall 21f.

[0012] [Guide rail 3] The guide rail 3 is a steel member that guides the passenger car, which will be housed in the elevator shaft 2 later, along the travel direction in the elevator shaft 2, and is a T-shaped steel with a T-shaped cross section (see especially Figs. 3 and 4). The guide rails 3 are arranged, for example, along two opposing side walls 21s of the inner peripheral wall 21, sandwiching the center of gravity [G] of the passenger car described above, and are positioned by the guide rail installation device 1 within an error range of several mm from a reference position. The positioned guide rail 3 is then fixed to the inner peripheral wall 21 (here, the side wall 21s) using mounting fixtures. The guide rail 3 is positioned and fixed to the inner peripheral wall 21 at several vertical points, whereby the guide rail 3 is installed vertically.

[0013] When positioning such a guide rail 3 using the guide rail installation device 1, the flange portion of the T-shaped steel is placed facing the side wall 21s, and the blade protruding from the center of the flange portion is directed toward the center of the elevator shaft 2, and the guide rail 3 is temporarily fixed to the side wall 21s.

[0014] [Work basket 4] A worker gets into the work cage 4 when installing the guide rail 3. The work cage 4 is composed of, for example, a rectangular work floor 4a and handrails 4b arranged on the periphery of the work floor 4a and surrounding a rectangular area. The work cage 4 is suspended between the guide rails 3 in the hoistway 2 by the ropes 6, and can travel freely within the hoistway 2 by winding up the ropes 6. When suspended by the ropes 6, the handrails 4b of the work cage 4 are approximately parallel to the inner peripheral wall 21 of the hoistway 2.

[0015] [Piano wire 5] The piano wire 5 is a steel wire used as a reference for positioning the guide rail 3. The piano wire 5, with a weight attached, is hung vertically from the top of the building in which the elevator is installed inside the hoistway 2. The position of the guide rail 3 is adjusted in the front-back and left-right directions based on this piano wire 5.

[0016] [Rope 6] The rope 6 suspends the work cage 4 on the rear wall 21b side with respect to the center of gravity [G] of the work cage 4. As a result, the work cage 4 is suspended in the elevator 2 in a state inclined toward the front wall 21f side. Here, the wall portion that is perpendicular to the side wall 21s and has the landing opening 2a is the front wall 21f. However, the work cage 4 may be inclined toward the rear wall 21b side that does not have the landing opening 2a. In this case, hereinafter, the wall portion that does not have the landing opening 2a (the rear wall 21b side in the drawing) will be the front wall.

[0017] In addition, the rope 6 is wound around a winch (not shown) and the work cage 4 can be raised and lowered by winding up the rope 6 with the winch.

[0018] [Guide shoe 7] The guide shoe 7 is fixed in a state protruding from the work basket 4 in the direction of the side wall 21s. The guide shoe 7 has walls that sandwich the blade of the guide rail 3 with a gap from the front wall 21f and the rear wall 21b, and is disposed so that these walls lightly contact the blade of the guide rail 3. As a result, the guide shoe 7 moves the guide rail 3 in accordance with the movement in the front-rear direction y (first direction) between the front wall 21f and the rear wall 21b of the work basket 4. For the purpose of illustrating the drawings, the guide shoe 7 is omitted from FIG. 3 and FIG. 4.

[0019] [Guide rail installation device 1] The guide rail installation device 1 is used by fixing it to the guide rail 3 arranged in the elevator shaft 2 in this state and to the work car 4 suspended from the elevator shaft 2, and is a device for positioning and fixing the guide rail 3 relative to a pair of side walls 21s based on the piano wire 5.

[0020] Such a guide rail installation device 1 comprises a pair of front wall distance adjustment members 101, a pair of side wall distance adjustment members 102, an attachment / detachment mechanism 103, a position measurement member 104, a rail gauge 105, a control unit 106, power supply means 107, operation means 108, and a contact detection member 109. These are configured as follows.

[0021] <Front wall distance adjustment member 101> The front wall distance adjustment member 101 is fixed to the work cage 4 and adjusts the position of the guide rail 3 fixed to the work cage 4 in the first direction by adjusting the distance between the front wall 21f and the work cage 4. The first direction is the front-rear direction y between the front wall 21f and the rear wall 21b.

[0022] The front wall distance adjustment members 101 are fixed to the work car 4 at two locations on either side of the landing opening 2a provided in the front wall 21f. The pair of front wall distance adjustment members 101 are directly detachable from the work car 4. Such a front wall distance adjustment member 101 is installed on the front wall 21f side while being fixed to the work car 4, and is further extended toward the front wall side while installed on the front wall 21f side, and is installed so as to push the front wall 21f by the extension.

[0023] Here, the work cage 4 is inclined toward the front wall 21f side by being suspended on the rear wall 21b side of the center of gravity [G]. This allows the front wall distance adjustment member 101 fixed to the work cage 4 to be extended so as to push the front wall, thereby adjusting the distance [D] between the front wall 21f and the work cage 4. In addition, the front wall distance adjustment member 101 can move the guide rail 3 in the front-rear direction y via the guide shoe 7 when moving the work cage 4 in the front-rear direction y as described above.

[0024] Such front wall distance adjustment members 101 are fixed to the handrail 4b of the work cage 4 at two positions spaced apart in the left-right direction x perpendicular to the front-rear direction y to an extent that the worker can secure sufficient space. Moreover, it is preferable that each front wall distance adjustment member 101 is fixed to the handrail 4b so as to overlap a portion parallel to the side wall 21s. In this way, the interior of the work cage 4 is not narrowed by fixing the front wall distance adjustment members 101 to the work cage 4, and workability within the work cage 4 can be ensured.

[0025] The above-mentioned expandable front wall distance adjustment member 101 is composed of a linear actuator driven by electricity, hydraulic pressure, or air pressure. Among them, a linear actuator using an electric ball screw is suitable because its length is unlikely to change even if it receives a pressing force when stopped. This is because the front wall distance adjustment member 101 needs to hold the position of the guide rail 3 after adjusting the guide rail 3 to a specified position until the guide rail 3 is fixed.

[0026] The front wall distance adjustment member 101 may also be provided with a length detection member (not shown) that detects a predetermined extension / contraction length. This length detection member is a means for detecting that the front wall distance adjustment member 101 is at its initial length, which is the length before the front wall distance adjustment member 101 is extended. As such a length detection member, a limit switch built into the front wall distance adjustment member 101 is used. Alternatively, a distance sensor that measures the distance between the tip of the front wall distance adjustment member 101 and the inner peripheral wall 21, or an encoder built into the drive unit of the front wall distance adjustment member 101 may be used.

[0027] <Distance adjustment member for side wall 102> The side wall distance adjustment member 102 is fixed to the guide rail 3 and adjusts the position of the guide rail 3 in the second direction by adjusting the distance between the two side walls 21s and the guide rail 3. The second direction is the left-right direction x between the two side walls 21s.

[0028] This side wall distance adjustment member 102 is fixed to the guide rail 3 via, for example, a detachable mechanism 103 described below, and can be freely fixed to the guide rail 3 by the detachable mechanism 103. Note that the side wall distance adjustment member 102 may be configured to be directly and freely fixed to the guide rail 3.

[0029] When fixed to the guide rail 3, the side-wall distance adjustment member 102 is expandable in the extension direction, and adjusts the position of the work cage 4 between the two side walls 21s by expanding and contracting. As a result, the side-wall distance adjustment member 102 moves the guide rail 3 in the left-right direction x via the attachment / detachment mechanism 103.

[0030] Such a side-wall distance adjustment member 102 is fixed to the guide rail 3 via the detachment mechanism 103 at a position close to the guide rail 3 and shifted in the front-rear direction y with respect to the guide rail 3. As a result, even if the distance between the guide rail 3 and the side wall 21s is narrow, the extension range of the side-wall distance adjustment member 102 can be made larger than when the side-wall distance adjustment member 102 is directly fixed to the guide rail 3. In other words, when the side-wall distance adjustment member 102 is directly fixed to the guide rail 3, the side-wall distance adjustment member 102 is disposed between the flange surface of the guide rail 3 and the side wall 21s, so that the extension range of the side-wall distance adjustment member 102 is limited to the distance between the flange surface of the guide rail 3 and the side wall 21s. In contrast, by fixing the side-wall distance adjustment member 102 to a position shifted in the front-rear direction y with respect to the guide rail 3 via the detachment mechanism 103, the extension range of the side-wall distance adjustment member 102 is not limited to the distance between the flange surface of the guide rail 3 and the side wall 21s. As a result, the range of adjustment of the guide rail 3 in the left-right direction by each of the side wall distance adjustment members 102 can be widened.

[0031] The side-wall distance adjustment member 102 preferably has the same configuration as the above-mentioned front-wall distance adjustment member 101. The side-wall distance adjustment member 102 may also include a length detection member similar to the above-mentioned front-wall distance adjustment member 101. Note that, although FIG. 1 shows a configuration in which a pair of side-wall distance adjustment members 102 are provided on both sides of the work cage 4 facing the side wall 21s, the side-wall distance adjustment member 102 may be provided on either side. In this case, the guide rail 3 is inclined in the direction in which the side-wall distance adjustment member 102 is provided.

[0032] <Detachment mechanism 103> The detachment mechanisms 103 are mechanisms used to fix the side-wall distance adjustment members 102 to the guide rail 3 (see especially Figs. 3 and 4). The detachment mechanisms 103 are fixed to each side-wall distance adjustment member 102, and may be formed integrally with each side-wall distance adjustment member 102. These detachment mechanisms 103 are configured as clamp mechanisms that extend in a direction perpendicular to the extension / contraction direction of each side-wall distance adjustment member 102 and clamp the flange portion of the T-shaped steel that constitutes the guide rail 3 from the front-rear direction y.

[0033] Such a detachment mechanism 103 has a pair of holding parts 103a that clamp and hold the flange part of the guide rail 3 from both ends, and a clamp handle 103b for adjusting the distance between the pair of holding parts 103a. The detachment mechanism 103 can freely hold and release the guide rail 3 by clamping it, by adjusting the distance between the holding parts 103a by rotating the clamp handle 103b.

[0034] The pair of holding parts 103a each have a C-shape that clamps both ends of the flange part of the guide rail 3 from two directions, and prevents the side-wall distance adjustment member 102 from falling off the guide rail 3. Here, FIG. 3 shows the side-wall distance adjustment member 102 in an extended state, and FIG. 4 shows the side-wall distance adjustment member 102 in a shortened state. As shown in these FIGS. 3 and 4, when the side-wall distance adjustment member 102 expands and contracts, a moment is generated on the detaching mechanism 103 about a point [B] of both ends of the flange part of the guide rail 3 that is close to the side-wall distance adjustment member 102. At this time, even if the moment is generated, the holding parts 103a, which have a shape that clamps both ends of the flange part from two directions, prevent the side-wall distance adjustment member 102 from falling off the guide rail 3.

[0035] <Position measuring member 104> The position measuring member 104 is a means for measuring the position of the guide rail 3 in the front-rear direction y and the left-right direction x with respect to a pair of piano wires 5 that serve as a reference for centering the guide rail 3. This position measuring member 104 is fixed in a predetermined state to the blades of the guide rail 3 directly or via a bracket. Although the position measuring method for such a position measuring member 104 is not limited, a small and lightweight one is preferably used, such as an optical piano wire position detector that has a hole 104a through which the piano wire 5 passes and measures the position of the piano wire 5 passed through the hole 104a.

[0036] <Rail gauge 105> The rail gauge 105 is a member for keeping two guide rails 3 at a predetermined distance, and is detachable from the guide rails 3. The rail gauge 105 has fixing parts 105a that hold both ends of the guide rail 3 in a predetermined state (see Figs. 3 and 4). The fixing parts 105a have, for example, a reference surface that is pressed against two surfaces facing in different directions at both ends of the guide rail 3, and a clamp that presses the guide rail 3 against the reference surface, and is fixed horizontally between the pair of guide rails 3, so as to keep the guide rails 3 fixed to both ends of the rail gauge 105 at a predetermined distance.

[0037] <Control unit 106> The control unit 106 is a means for controlling the distance adjustment by the front-wall distance adjustment member 101 and the side-wall distance adjustment member 102. Such a control unit 106 is configured by a computer such as an embedded microcomputer. The control unit 106 receives the position information of the rail acquired by the position measurement member 104, and adjusts the position of the guide rail 3 by automatically controlling the expansion and contraction of the front-wall distance adjustment member 101 and the side-wall distance adjustment member 102. This control unit 106 automates the position adjustment work of the guide rail 3, and further supports the positioning work of the guide rail 3 by simultaneously performing the position adjustment work in both the left-right direction x and the front-back direction y of the guide rail 3. The procedure for adjusting the position of the guide rail 3 by the control unit 106 will be described in the guide rail installation method below.

[0038] <Power supply means 107> The power supply means 107 is a means for supplying the power required to drive each part of the guide rail installation device 1. Such power supply means 107 may be, for example, a switching power supply that converts a general commercial power supply into a voltage used by the guide rail installation device 1, or a rechargeable battery.

[0039] <Operation means 108> The operation means 108 is a means for the worker to operate the guide rail installation device 1. The operation means 108 has a push button as an input unit. It also has an output unit for the worker to check the states of the front wall distance adjustment member 101, the side wall distance adjustment member 102, and the position measurement member 104. The output unit is a display output, an indication lamp that is turned on when the work is completed, and the like. Furthermore, the operation means 108 has a communication unit for communicating with the control unit 106. This communication is performed by wire or wirelessly.

[0040] <Contact detection member 109> The contact detection member 109 is a means for detecting that the tips of the front-wall distance adjustment member 101 and the side-wall distance adjustment member 102 have come into contact with the inner peripheral wall 21. As the contact detection member 109, a current sensor that measures the current flowing through the front-wall distance adjustment member 101 and the side-wall distance adjustment member 102 is preferably used.

[0041] As the contact detection member 109, a contact sensor or a distance sensor provided at the tip of the front-wall distance adjustment member 101 and the side-wall distance adjustment member 102 can also be used. However, the contact sensor or the distance sensor must be provided separately at the tip of the front-wall distance adjustment member 101 and the side-wall distance adjustment member 102. Therefore, a signal line is required to transmit the sensor signal to the control unit 106. In contrast, a current sensor can be attached near the control unit 106 and the power supply means 107, which has the advantage that the operator does not need to handle the signal line.

[0042] <How to install guide rails> 5 and 6 are flow charts (part 1) and (part 2) showing a guide rail installation method using a guide rail installation device according to an embodiment. Hereinafter, the guide rail installation method will be described based on these Figs. 5 and 6 with reference to Figs. 1 to 4 and other necessary drawings.

[0043] <Step S00> In step S00, the worker gets into the work cage 4 and fixes the front wall distance adjustment member 101 to the handrail 4b of the work cage 4. At this time, the front wall distance adjustment member 101 is shortened to its initial length so as not to interfere with the fixing work.

[0044] <Step S01> In step S01, the worker raises and lowers the work basket 4 by operating a hoist (not shown) and moves it to a predetermined height.

[0045] <Step S02> In step S02, the worker fixes the pair of side-wall distance adjustment members 102 to the guide rails 3 via the attachment / detachment mechanism 103. At this time, the side-wall distance adjustment members 102 are shortened to their initial length so as not to interfere with the fixing work. In addition, the worker fixes the position measurement members 104 to each of the pair of guide rails 3 in a predetermined state.

[0046] The worker also fixes the rail gauge 105 in a predetermined state relative to the two guide rails 3. In this state, as shown in FIG. 1, the center of gravity [G] of the work cage 4 is at a point a distance [L] away from the rail gauge 105 toward the front wall 21f, and the work cage 4 is inclined toward the front wall 21f.

[0047] <Step S03> In step S03, the operator operates the operating means 108 to input a command to bring the tips of the front-wall distance adjustment member 101 and the side-wall distance adjustment member 102 into contact with the inner circumferential wall 21.

[0048] As a result, the control unit 106 extends the front-wall distance adjustment member 101 and the side-wall distance adjustment member 102. When the control unit 106 detects, by a signal from the contact detection member 109, that the tips of the front-wall distance adjustment member 101 and the side-wall distance adjustment member 102 have each come into contact with the inner circumferential wall 21, the control unit 106 stops the extension of the front-wall distance adjustment member 101 and the side-wall distance adjustment member 102. In this way, by automating the contact of the tips of the front-wall distance adjustment member 101 and the side-wall distance adjustment member 102 with the inner circumferential wall 21, the workload of the worker can be reduced.

[0049] The control unit 106 also causes the output unit of the operation means 108 to output a notification that the tips of the front-wall distance adjustment member 101 and the side-wall distance adjustment member 102 have come into contact with the inner circumferential wall 21. This allows the operator to confirm that the tips of the front-wall distance adjustment member 101 and the side-wall distance adjustment member 102 have come into contact with the inner circumferential wall 21.

[0050] <Step S04> In step S04, the worker confirms in the output section of the operating means 108 that the tips of the front wall distance adjustment member 101 and the side wall distance adjustment member 102 have completed contact with the inner wall 21, and then operates the operating means 108 to input a command to position the guide rail 3.

[0051] As a result, the control unit 106 controls the extension and contraction of the front wall distance adjustment member 101 and the side wall distance adjustment member 102 based on information from the position measurement member 104, and positions the guide rail 3 fixed to the work cage 4 at a predetermined position by moving the work cage 4. In this way, by automating the positioning work of the guide rail 3, the workload of the worker can be reduced.

[0052] The control unit 106 also outputs a notification that the guide rail 3 has been positioned to the output unit of the operation means 108. At this time, the operation means 108 turns on a display lamp provided as an output unit if the positioning is complete, and turns off the lamp if the positioning is not complete. The lighting of this lamp allows the operator to confirm that the guide rail 3 has been positioned.

[0053] <Step S05> In step S05, the worker uses a bracket to fix the guide rail 3 to the inner peripheral wall 21. At this time, until the guide rail 3 is fixed, the front-wall distance adjustment member 101 and the side-wall distance adjustment member 102 press their tips against the inner peripheral wall 21 to hold the position of the guide rail 3.

[0054] The control unit 106 constantly outputs the positioning state of the guide rail 3 to the output unit of the operation means 108 based on the information from the position measurement member 104. As a result, when the guide rail 3 is displaced during the worker's work of fixing the guide rail 3, the operation means 108 turns off an indication lamp provided as an output unit of the operation means 108, so that the worker can recognize the displacement of the guide rail 3.

[0055] <Step S06> In step S06, the worker determines whether the guide rail 3 is in a positioned state by checking whether the indicator lamp on the operating means 108 is on. If the indicator lamp is on, the worker determines that the position of the guide rail 3 is good (YES) and proceeds to step S07. On the other hand, if the indicator lamp is off, the worker determines that the position of the guide rail 3 is not good (NO) and returns to step S04. Then, the worker again operates the operating means 108 to input a command to position the guide rail 3.

[0056] <Step S07> In step S07, the worker determines whether or not the fixing of the guide rail 3 has been completed in the positioned state, and if it is determined that the fixing has been completed (YES), the process proceeds to the next step S08. On the other hand, if the fixing has not been completed (NO), the process returns to step S05 and the fixing operation continues.

[0057] <Step S08> In step S08, the worker operates the operating means 108 to input a command to shorten the front-wall distance adjustment member 101 and the side-wall distance adjustment member 102 to their initial lengths.

[0058] As a result, the control unit 106 shortens each of the front-wall distance adjustment member 101 and the side-wall distance adjustment member 102, and releases the contact of the tips of the front-wall distance adjustment member 101 and the side-wall distance adjustment member 102 with the inner peripheral wall 21. At this time, if the front-wall distance adjustment member 101 and the side-wall distance adjustment member 102 are equipped with a length detection member, the control unit 106 returns the front-wall distance adjustment member 101 and the side-wall distance adjustment member 102 to their initial lengths based on a signal from the length detection member.

[0059] Furthermore, the control unit 106 causes the output unit of the operation means 108 to display that the front-wall distance adjustment member 101 and the side-wall distance adjustment member 102 have returned to their initial lengths. This allows the worker to confirm that the front-wall distance adjustment member 101 and the side-wall distance adjustment member 102 have returned to their initial lengths through the output of the output unit of the operation means 108. This eliminates the need for the worker to check the lengths of the front-wall distance adjustment member 101 and the side-wall distance adjustment member 102 one by one at the front-wall distance adjustment member 101 and the side-wall distance adjustment member 102, and allows the worker to perform other tasks during that time, thereby reducing the workload.

[0060] <Step S09> In step S09, the worker removes the rail gauge 105 from the two guide rails 3. The worker also removes the position measuring member 104 from the guide rails 3. Furthermore, the worker releases the clamping pressure of the guide rails 3 by the detachment mechanism 103, and removes the detachment mechanism 103 and the side wall distance adjustment member 102 from the guide rails 3.

[0061] <Step S10> In step S10, the worker determines whether or not the fixing of the guide rails 3 is complete. If the worker has fixed both of the pair of guide rails 3 at all predetermined height positions, the worker determines that the fixing is complete (YES) and proceeds to step S11. In other cases, the worker determines that the fixing is not complete (NO) and returns to step S01, and the subsequent steps are repeated.

[0062] <Step S11> In step S11, the worker removes the front wall distance adjustment member 101 from the work basket 4, and ends the installation work of the guide rail 3.

[0063] Effect of the embodiment The guide rail installation device 1 of the embodiment described above is configured such that the front wall distance adjustment member 101, which adjusts the position of the guide rail 3 in the front-rear direction y, and the side wall distance adjustment member 102, which adjusts the position in the left-right direction x, are divided as separate members and fixed individually to the work cage 4 and the guide rail 3. This allows the guide rail installation device 1 to be divided into multiple small and lightweight members, making it easy to handle. For this reason, the guide rail installation device 1 is fixed to and dismantled from the work cage 4 and the guide rail 3 by fixing each of the multiple small and lightweight divided members. Therefore, it is possible to reduce the workload of fixing and dismantling the guide rail installation device 1 compared to when the guide rail installation device 1 is configured as an integrated unit.

[0064] 7 is a top view for explaining the guide rail installation method according to the embodiment, showing the state in step S09 in which the rail gauge 105, the detachment mechanism 103, and the side wall distance adjustment member 102 are removed from the guide rail 3. As shown in this figure, when changing the height of the work cage 4 in the procedure for installing the guide rail 3, only the members fixed to the guide rail 3 are removed, and the front wall distance adjustment member 101 can be left fixed to the work cage 4. This also reduces the workload.

[0065] Furthermore, in this state, since space can be secured within the work car 4, other work to be performed at each height within the hoistway 2 can also be performed stress-free. Therefore, installation of the guide rails 3 and other work can be performed in parallel at each height within the hoistway 2. As a result, it is possible to improve the overall work efficiency of the elevator device installation.

[0066] The present invention is not limited to the above-described embodiments and modifications, and further includes various modifications. For example, the above-described embodiments have been described in detail to clearly explain the present invention, and are not necessarily limited to those having all of the configurations described. In addition, it is possible to replace a part of the configuration of one embodiment with the configuration of another embodiment, and it is also possible to add the configuration of another embodiment to the configuration of one embodiment. In addition, it is possible to add, delete, or replace a part of the configuration of each embodiment with another configuration. [Explanation of symbols]

[0067] 1 Guide rail installation device, 2. Lift 2a Platform opening 3 Guide rail 4 Work basket 7 Guide shoe 21 Inner wall 21f front wall 21s side wall 101 Distance adjustment member for front wall 102 Distance adjustment member for side wall 103 Detachable mechanism 105 rail gauge

Claims

1. A guide rail installation device for adjusting the positions of a pair of guide rails arranged along two opposing lateral walls of an inner peripheral wall of an elevator shaft, comprising: a pair of front wall distance adjustment members that are fixed to a work car accommodated in a hoistway so as to be able to rise and fall freely, adjust a distance in a first direction between the work car and a front wall that is approximately perpendicular to the two side walls among the inner peripheral walls of the hoistway, and adjust a position in the first direction of a guide rail that is clamped by a guide shoe fixed to the work car from the first direction; a side wall distance adjustment member that is fixed to at least one of the pair of guide rails and adjusts the position of each of the guide rails in the second direction by adjusting the distance between the two side walls and each of the guide rails. Guide rail installation device.

2. The front wall distance adjustment member is fixed to the work basket and is expandable and contractable toward the front wall while pressing the front wall, and adjusts the distance between the front wall and the work basket by expanding and contracting. The guide rail installation device according to claim 1 .

3. The front wall has a landing opening. The front wall distance adjustment members are fixed to positions facing the front wall of the work car, the positions sandwiching the landing opening. The guide rail installation device according to claim 1 .

4. The side wall distance adjustment members are freely expandable toward the side walls while being fixed to the guide rails, and adjust the distance between the guide rails and the side walls by expanding and contracting. The guide rail installation device according to claim 1 .

5. The side wall distance adjustment members are fixed to the pair of guide rails. The guide rail installation device according to claim 1 .

6. The side wall distance adjustment member is fixed to the guide rail via a detachable mechanism. The guide rail installation device according to claim 1 .

7. The detachment mechanism is fixed to the side-wall distance adjustment member, and fixes the side-wall distance adjustment member at a position shifted in the first direction with respect to the guide rail. The guide rail installation device according to claim 6.

8. the guide rail is a T-shaped steel having a flange portion arranged parallel to the side wall and a blade arranged to protrude from a center of the flange portion toward the elevator shaft, The detachment mechanism clamps at least one edge of the flange portion of the guide rail from the second direction. The guide rail installation device according to claim 7.

9. In addition to the side wall distance adjustment member, a rail gauge of a predetermined length is provided which is fixed across the pair of guide rails. The guide rail installation device according to claim 1 .

10. The front wall distance adjustment member and the side wall distance adjustment member are extendable toward the inner wall while being fixed to the work basket or the guide rail, and each has a contact detection member that detects contact of the extendable tip with the inner wall. The guide rail installation device according to claim 1 .

11. A guide rail installation method for adjusting and fixing a pair of guide rails arranged along two opposing side walls of an inner peripheral wall of an elevator shaft using the guide rail installation device according to any one of claims 1 to 10, The front wall distance adjustment member is fixed to the work basket, The side wall distance adjustment members are fixed to the respective guide rails, After adjusting the positions of the guide rail in the first direction and the second direction by adjusting the front wall distance adjustment member and the side wall distance adjustment member, the guide rail whose position has been adjusted is fixed to the inner peripheral wall. How to install guide rails.

Images