Elevator positioning method and elevator positioning device

Abstract

An elevator positioning method and elevator positioning device are provided that can suppress a decrease in the accuracy of positioning of landing thresholds on each floor. [Solution] In this elevator positioning method, in the target floor setting step S5, the floor immediately above the reference floor where the positioned landing threshold is located is set as the target floor. In the threshold positioning step S6, the target threshold 3b of the target floor is positioned using the reference threshold 3a of the reference floor as a reference. The threshold positioning step S6 includes a light emitter step, a light receiver step, and an adjustment step. In the light emitter step, a light emitter 51 is attached to the reference threshold 3a, and in the light receiver step, a light receiver 52 is attached to the target threshold 3b. In the adjustment step, after the light emitter step and the light receiver step, the position of the target threshold 3b relative to the reference threshold 3a is adjusted based on the amount of light received by the light receiver 52, which receives the laser light emitted from the light emitter 51.

Description

[Technical Field]

[0001] The present disclosure relates to an elevator positioning method and an elevator positioning device. [Background technology]

[0002] When installing an elevator, the landing threshold, rails, etc. are positioned in the elevator shaft using piano wire stretched vertically in the elevator shaft as a reference. If the positioning work is performed while the piano wire is still stretched in the elevator shaft, the piano wire may get in the way of the positioning work.

[0003] Patent Document 1 discloses a threshold installation method in which vertical laser light is emitted from a pair of laser plumbing devices installed at the bottom of the elevator shaft, and the landing threshold is positioned based on the vertical laser light, in order to avoid problems caused by piano wire during positioning work. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Publication No. 2022-76535 Summary of the Invention [Problem to be solved by the invention]

[0005] In the conventional elevator threshold installation method disclosed in Patent Document 1, the positioning of all landing thresholds located on each floor is performed using a laser beam emitted from a laser plumbing device installed at the bottom of the elevator shaft as a reference. The distance from the laser plumbing device to each landing threshold increases as the floor on which the landing threshold is located approaches the top floor.

[0006] The laser beam diverges as the distance of the laser beam increases. Furthermore, depending on the accuracy of the angle at which the laser beam is emitted from the laser plumb gauge, the horizontal deviation of the laser beam from the vertical line based on the laser plumb gauge increases as the distance of the laser beam increases. Therefore, the accuracy of positioning the landing threshold based on the laser beam emitted from the laser plumb gauge decreases as you get closer to the top floor.

[0007] The present disclosure is intended to solve the above-mentioned problems, and aims to provide an elevator positioning method and elevator positioning device that can suppress a decrease in the accuracy of positioning of the landing threshold. [Means for solving the problem]

[0008] The elevator positioning method according to the present disclosure comprises a reference floor setting step in which a floor on which a positioned landing threshold is located is set as a reference floor and the landing threshold located on the reference floor is set as the reference threshold; a target floor setting step in which, after the reference floor setting step, the floor immediately above the reference floor is set as a target floor and the landing threshold located on the target floor is set as the target threshold; and an inter-threshold positioning step in which, after the target floor setting step, the target threshold is positioned using the reference threshold as a reference, thereby setting the target threshold as the positioned landing threshold. The inter-threshold positioning step comprises a light emitter step in which a light emitter that emits laser light is attached to the reference threshold facing upward; a light receiver step in which a light receiver that can receive laser light is attached to the target threshold facing downward; and an adjustment step in which, after the light emitter step and the light receiver step, the position of the target threshold relative to the reference threshold is adjusted based on the amount of light received by the light receiver that receives the laser light emitted vertically from the light emitter. In addition, the elevator positioning device of the present disclosure includes a threshold positioning device used to position a target threshold, which is a landing threshold located on the floor immediately above the reference floor, using a reference threshold, which is a landing threshold located on the reference floor, as a reference.The threshold positioning device has a light emitter that emits laser light, a light receiver that can receive laser light, a light emitter mounting fixture that detachably attaches the light emitter to the reference threshold facing upward, and a light receiver mounting fixture that detachably attaches the light receiver to the target threshold facing downward.When the light emitter is attached to the reference threshold by the light emitter mounting fixture and the light receiver is attached to the target threshold by the light receiver mounting fixture, adjusting the position of the target threshold relative to the reference threshold changes the amount of light received by the light receiver that receives the laser light emitted vertically from the light emitter. [Effects of the Invention]

[0009] According to the elevator positioning method and elevator positioning device of the present disclosure, it is possible to suppress a decrease in the accuracy of positioning of the landing threshold. [Brief explanation of the drawings]

[0010] [Figure 1] 1 is a partially cutaway perspective view showing a state in which a landing threshold and a rail, which are positioned by the elevator positioning method according to the first embodiment, are arranged in a hoistway. FIG. [Figure 2] 2 is a perspective view showing a threshold positioning device used when positioning the landing threshold of FIG. 1 and a rail positioning tool used when positioning each rail. FIG. [Figure 3] FIG. 3 is a perspective view showing a light emitter attached to the reference threshold of FIG. 2. [Figure 4] 3 is a perspective view showing a receiver attached to the target threshold of FIG. 2. FIG. [Figure 5] FIG. 3 is a perspective view showing the rail positioning tool of FIG. 2. [Figure 6] 2 is a flowchart illustrating a procedure for positioning each landing threshold and each rail in FIG. 1. [Figure 7] 7 is a perspective view showing a state in which a pair of light emitters are attached to the bottom of the elevator shaft in the lowest floor threshold positioning step S1 of FIG. 6. FIG. [Figure 8] 7 is a perspective view showing a state in which the position of the landing threshold located on the lowest floor is adjusted based on the laser light of each light emitter in the lowest floor threshold positioning step S1 of FIG. 6. FIG. [Figure 9] 7 is a perspective view showing a state in which the rails are being positioned using rail positioning tools in the rail positioning step S3 of FIG. 6. FIG. DETAILED DESCRIPTION OF THE INVENTION

[0011] The following describes embodiments of the subject matter of the present disclosure with reference to the accompanying drawings. In each drawing, identical or corresponding parts are designated by the same reference numerals, and redundant explanations are appropriately simplified or omitted. Note that the subject matter of the present disclosure is not limited to the following embodiments, and any component of the embodiments may be modified or omitted within the scope of the gist of the present disclosure.

[0012] Embodiment 1 FIG. 1 is a partially cutaway perspective view showing a state in which a landing threshold and a rail, which are positioned by the elevator positioning method according to the first embodiment, are arranged in a hoistway. In the figure, a building is provided with a hoistway 1. Each floor of the building is provided with a landing entrance / exit 2. On each floor, the space within the hoistway 1 is open to the landing through the landing entrance / exit 2. The width direction of each landing entrance / exit 2 coincides with the width direction of the hoistway 1.

[0013] A landing threshold 3 is provided on each floor. The landing threshold 3 provided on each floor is located below the landing entrance / exit 2. Each landing threshold 3 is attached to the inner wall of the hoistway 1. Each landing threshold 3 is provided along the width direction of the hoistway 1.

[0014] A threshold groove is provided on the upper surface of each landing threshold 3 along the longitudinal direction of the landing threshold 3. A landing door (not shown) is provided at each landing entrance / exit 2. When the landing door is provided at the landing entrance / exit 2, the landing door moves along the threshold groove to open and close the landing entrance / exit 2.

[0015] A pair of rails 4 are arranged within the hoistway 1. Each rail 4 is formed by continuously joining a plurality of unit rail members. The pair of rails 4 are arranged opposite each other in the width direction of the hoistway 1. The pair of rails 4 are used, for example, as car guide rails that guide the vertical movement of a car (not shown).

[0016] On each floor, the landing thresholds 3 are positioned in the horizontal direction so that all the landing thresholds 3 arranged on each floor are aligned in the vertical direction. Also, on each floor, the rails 4 are positioned in the horizontal direction so that each rail 4 is arranged vertically at a predetermined rail setting position.

[0017] When the landing thresholds 3 to be arranged on each floor are positioned, the landing threshold 3 to be arranged on the lowest floor among the floors is positioned first. When the landing threshold 3 on the lowest floor is positioned, the landing threshold 3 arranged on the lowest floor becomes the positioned landing threshold 3.

[0018] The positioning of the landing threshold 3 to be located on the floor immediately above the lowest floor, i.e., on the floor one floor above the lowest floor, is performed using a threshold positioning device, with the positioned landing threshold 3 located on the lowest floor as a reference.

[0019] The floors on which the rails 4 are positioned change sequentially from the lowest floor to the highest floor. On each floor, the position of each rail 4 is determined using a rail positioning tool, with the already positioned landing threshold 3 as a reference.

[0020] 2 is a perspective view showing a threshold positioning device used when positioning the landing threshold 3 in FIG. 1 and a rail positioning tool used when positioning each rail 4. A pair of reference vertical imaginary lines A are set in advance along the vertical direction in the hoistway 1. The pair of reference vertical imaginary lines A are set at positions spaced apart from each other in the width direction of the hoistway 1.

[0021] A pair of first mounting reference lines (not shown) and a pair of second mounting reference lines (not shown) are set in advance on each landing threshold 3. Each of the first mounting reference lines and each of the second mounting reference lines is a virtual line extending along the thickness direction of the landing threshold 3.

[0022] At each landing threshold 3, the positions of the pair of first mounting reference lines are spaced apart from each other in the longitudinal direction of the landing threshold 3. When the positioning of all of the landing thresholds 3 arranged on each floor is completed and the landing thresholds 3 on each floor are all lined up in the vertical direction, the pair of first mounting reference lines set at each landing threshold 3 will coincide with the pair of reference vertical imaginary lines A.

[0023] At each landing threshold 3, the position of the pair of second mounting reference lines is between the pair of first mounting reference lines. The pair of second mounting reference lines serves as a reference for the mounting position of the rail positioning device 6, which will be described later, with respect to the landing threshold 3. The positional relationship between the pair of first mounting reference lines and the pair of second mounting reference lines is the same for all landing thresholds 3.

[0024] Each landing threshold 3 is provided with a pair of first mounting holes (not shown) whose respective center lines correspond to a pair of first mounting reference lines, and a pair of second mounting holes (not shown) whose respective center lines correspond to a pair of second mounting reference lines. In each landing threshold 3, each of the first mounting holes and each of the second mounting holes penetrates the landing threshold 3 along the thickness direction of the landing threshold 3.

[0025] When positioning the landing threshold 3 to be located on the floor immediately above the lowest floor, the lowest floor on which the positioned landing threshold 3 is located is set as the reference floor, and the floor immediately above the reference floor is set as the target floor. Furthermore, the landing threshold 3 located on the reference floor is set as the reference threshold 3a, and the landing threshold 3 located on the target floor is set as the target threshold 3b.

[0026] The target threshold 3b is positioned with reference to the reference threshold 3a. When the target threshold 3b is positioned with reference to the reference threshold 3a, a threshold positioning device 5 is used. The threshold positioning device 5 has a pair of light emitters 51 and a pair of light receivers 52.

[0027] A pair of light emitters 51 are attached to the upper surface of the reference threshold 3a facing upward. The position of each light emitter 51 relative to the reference threshold 3a is determined based on the first attachment reference lines of the reference threshold 3a. When each light emitter 51 is attached to the reference threshold 3a, the position of each light emitter 51 is on the first attachment reference line of the reference threshold 3a.

[0028] Each light emitter 51 emits a laser beam. As a result, when each light emitter 51 is attached to the reference threshold 3a, each light emitter 51 emits a laser beam that passes along each first attachment reference line. Because the reference threshold 3a is a positioned landing threshold 3, when each light emitter 51 is attached to the reference threshold 3a, each light emitter 51 emits a laser beam that passes along each reference vertical imaginary line A upward.

[0029] The pair of photoreceivers 52 are attached to the underside of the target threshold 3b facing downward. The position of each photoreceiver 52 relative to the target threshold 3b is determined based on the first attachment reference lines of the target threshold 3b. When each photoreceiver 52 is attached to the target threshold 3b, the position of each photoreceiver 52 is on the first attachment reference line of the target threshold 3b.

[0030] Each light receiver 52 is capable of receiving laser light from each light emitter 51. Each light receiver 52 determines whether or not laser light is detected based on the amount of light received by the light receiver 52. That is, each light receiver 52 detects laser light when the amount of light received by the light receiver 52 exceeds a threshold, and does not detect laser light when the amount of light received by the light receiver 52 is equal to or less than the threshold.

[0031] The amount of light received by each photoreceiver 52 that receives laser light from each light emitter 51 decreases as the amount of deviation of the position of each photoreceiver 52 from each reference vertical imaginary line A increases. When the position of photoreceiver 52 matches the position on reference vertical imaginary line A, the amount of light received by photoreceiver 52 exceeds a threshold, and photoreceiver 52 detects laser light. In this embodiment, when photoreceiver 52 detects laser light, a detection lamp provided on photoreceiver 52 lights up.

[0032] The positioning of the target threshold 3b is performed by adjusting the position of the target threshold 3b relative to the reference threshold 3a in the horizontal direction. When each light emitter 51 is attached to the reference threshold 3a and each light receiver 52 is attached to the target threshold 3b, adjusting the position of the target threshold 3b relative to the reference threshold 3a changes the amount of light received by each light receiver 52 that receives the laser light from each light emitter 51. Therefore, the position of the target threshold 3b relative to the reference threshold 3a is adjusted based on the amount of light received by each light receiver 52 that receives the laser light from each light emitter 51.

[0033] The position of the target threshold 3b relative to the reference threshold 3a is adjusted so that the amount of light received by each light receiver 52 exceeds the threshold. That is, the position of the target threshold 3b relative to the reference threshold 3a is adjusted so that each light receiver 52 detects laser light. When the amount of light received by each light receiver 52 exceeds the threshold and each light receiver 52 detects laser light, the position of each light receiver 52 matches the position on each reference vertical imaginary line A, and the position of the target threshold 3b becomes aligned vertically with the reference threshold 3a. This completes the positioning of the target threshold 3b, and the target threshold 3b becomes the positioned landing threshold 3.

[0034] The position of each light emitter 51 relative to the reference threshold 3a is determined based on the first mounting reference line of the reference threshold 3a. The position of each light receiver 52 relative to the target threshold 3b is determined based on the first mounting reference line of the target threshold 3b. Therefore, the positioning of the target threshold 3b is performed by adjusting the position of each light receiver 52 relative to each light emitter 51 based on the reference threshold 3a.

[0035] Here, Fig. 3 is a perspective view showing a light emitter 51 attached to the reference threshold 3a in Fig. 2. Fig. 4 is a perspective view showing a light receiver 52 attached to the target threshold 3b in Fig. 2. The threshold positioning device 5 further has a pair of light emitter mounting fixtures 53 and a pair of light receiver mounting fixtures 54.

[0036] As shown in Fig. 3, the pair of light-emitting device mounting fixtures 53 are individually and detachably mounted on the standard threshold 3a with the pair of light-emitting devices 51 facing upward. A pin, bolt, or the like is used as each light-emitting device mounting fixture 53. Each light-emitting device mounting fixture 53 is passed through each first mounting hole of the standard threshold 3a from below the standard threshold 3a and mounts each light-emitting device 51 to the standard threshold 3a in a state where it protrudes above the standard threshold 3a.

[0037] As shown in Fig. 4, the pair of optical receiver mounting fixtures 54 are individually and detachably mounted to the target threshold 3b with the pair of optical receivers 52 facing downward. A pin, bolt, or the like is used as each optical receiver mounting fixture 54. Each optical receiver mounting fixture 54 is passed through each first mounting hole of the target threshold 3b from above the target threshold 3b and mounts each optical receiver 52 to the target threshold 3b in a state where it protrudes downward from the target threshold 3b.

[0038] When positioning each rail 4, as shown in Fig. 2, a rail positioning tool 6 is attached to the positioned platform threshold 3, and the rail positioning tool 6 is attached to each rail 4. As a result, the position of each rail 4 relative to the positioned platform threshold 3 becomes a predetermined rail setting position in the horizontal direction. In Fig. 2, the rail positioning tool 6 is attached to the target threshold 3b, which is the platform threshold 3 that has already been positioned by positioning based on the reference threshold 3a.

[0039] Fig. 5 is a perspective view showing the rail positioning tool 6 of Fig. 2. The rail positioning tool 6 has a positioning tool main body 61 and a pair of main body attachments 62.

[0040] The pair of main body mounting fixtures 62 detachably mount the positioning fixture main body 61 to the positioned landing threshold 3. A pin, a bolt, or the like is used as each main body mounting fixture 62. Each main body mounting fixture 62 is attached to the positioned landing threshold 3 by being inserted from below into each second mounting hole in the positioned landing threshold 3. As a result, when each main body mounting fixture 62 is attached to the positioned landing threshold 3, the position of each main body mounting fixture 62 is on each second mounting reference line in the positioned landing threshold 3. The position of each main body mounting fixture 62 with respect to the positioned landing threshold 3 is determined based on each second mounting reference line in the positioned landing threshold 3. When each main body mounting fixture 62 is attached to the positioned landing threshold 3, each main body mounting fixture 62 protrudes above the positioned landing threshold 3.

[0041] The positioning tool body 61 is attached to the positioned landing threshold 3 via each of the body attachments 62. The positioning tool body 61 can also be attached to each of the rails 4. The positioning tool body 61 is attached to each of the rails 4 by gripping each of the rails 4.

[0042] The positioning device main body 61 is attached to the positioned landing threshold 3 and to each rail 4 by each main body mounting device 62, thereby mechanically positioning each rail 4 based on the positioned landing threshold 3.

[0043] The positioning tool body 61 has a main gauge 611 and multiple sub-gauges 612. The main gauge 611 is attached to each rail 4 by gripping each rail 4. The position of the pair of rails 4 relative to the main gauge 611 is determined by attaching the main gauge 611 to each rail 4.

[0044] The multiple sub-gauges 612 are gauges that connect the main gauge 611 to the positioned platform threshold 3. Each sub-gauge 612 is attached to the positioned platform threshold 3 via one of the pair of main body mounting fixtures 62. In this embodiment, the main gauge 611 is connected to the positioned platform threshold 3 by three sub-gauges 612. The position of the main gauge 611 relative to the positioned platform threshold 3 is determined by connecting the main gauge 611 to the positioned platform threshold 3 by the multiple sub-gauges 612. In this way, the position of the main gauge 611 relative to the positioned platform threshold 3 is determined, and the position of each rail 4 relative to the main gauge 611 is determined, so that the positions of the pair of rails 4 are determined as rail set positions with respect to the positioned platform threshold 3 as a reference.

[0045] Next, an elevator positioning method for positioning the landing thresholds 3 located on each floor of a building and the pair of rails 4 located within the elevator shaft 1 will be described. FIG. 6 is a flowchart illustrating the procedure for positioning each landing threshold 3 and each rail 4 shown in FIG. 1. The elevator positioning method includes a lowest floor threshold positioning step S1, an initial reference floor setting step S2, a rail positioning step S3, a directly above floor determination step S4, a target floor setting step S5, a threshold positioning step S6, and an updated reference floor setting step S7. An operator positions each landing threshold 3 and each rail 4 by performing the lowest floor threshold positioning step S1, the initial reference floor setting step S2, the rail positioning step S3, the directly above floor determination step S4, the target floor setting step S5, the threshold positioning step S6, and the updated reference floor setting step S7. When positioning each landing threshold 3 and each rail 4, the lowest floor threshold positioning step S1 is first performed.

[0046] <Lowest floor threshold positioning process S1> In the lowest floor threshold positioning step S1, the positioning of the landing threshold 3 to be located on the lowest floor is performed. In this embodiment, a threshold positioning device 5 is used when positioning the landing threshold 3 to be located on the lowest floor. In the lowest floor threshold positioning step S1, when positioning the landing threshold 3 to be located on the lowest floor, a pair of light emitters 51 are first attached to the bottom of the elevator shaft 1 facing upward.

[0047] 7 is a perspective view showing a pair of light emitters 51 attached to the bottom of the elevator shaft 1 in the lowest floor threshold positioning step S1 of FIG. 6. The position at which each light emitter 51 is attached at the bottom of the elevator shaft 1 is determined based on a building standard mark 10 that is previously indicated as a building standard line at the landing of the lowest floor of the building. For example, each light emitter 51 is attached at a position at the bottom of the elevator shaft 1 a distance L away from the building standard mark 10 in the depth direction of the elevator shaft 1. As a result, the positions at which the pair of light emitters 51 are attached at the bottom of the elevator shaft 1 become positions on a pair of reference vertical imaginary lines A. Each light emitter 51 emits a laser beam upward that passes along each reference vertical imaginary line A.

[0048] Thereafter, the position of the landing threshold 3 located on the lowest floor is adjusted based on the laser light emitted from each light emitter 51.

[0049] 8 is a perspective view showing a state when the position of the landing threshold 3 located on the lowest floor is adjusted based on the laser light of each light emitter 51 in the lowest floor threshold positioning step S1 in FIG. 6. When adjusting the position of the landing threshold 3 located on the lowest floor, a pair of light receivers 52 are attached to the landing threshold 3 located on the lowest floor facing downward. As a result, the position of each light receiver 52 relative to the landing threshold 3 becomes a position on each first attachment reference line of the landing threshold 3.

[0050] The position of the platform threshold 3 located on the lowest floor is adjusted in the horizontal direction based on the amount of light received by each photodetector 52 that receives laser light emitted vertically from each light emitter 51, with each laser light used as a reference. When the amount of light received by each photodetector 52 exceeds a threshold and each photodetector 52 detects each laser light, the position of each photodetector 52 coincides with a position on each reference vertical imaginary line A. In this state, the position of the platform threshold 3 located on the lowest floor is fixed. Therefore, the position of the platform threshold 3 becomes the threshold setting position based on each reference vertical imaginary line A, and the positioning of the platform threshold 3 located on the lowest floor is completed. As a result, the platform threshold 3 located on the lowest floor becomes the positioned platform threshold 3.

[0051] <Initial standard floor setting process S2> After the lowest floor threshold positioning step S1, an initial reference floor setting step S2 is performed. In the initial reference floor setting step S2, the lowest floor on which the positioned landing threshold 3 is located is set as the reference floor. At this time, the positioned landing threshold 3 located on the lowest floor set as the reference floor is set as the reference threshold 3a.

[0052] <Rail positioning process S3> After the initial reference floor setting process S2, the rail positioning process S3 is carried out. In the rail positioning process S3, each rail 4 is positioned based on the reference threshold 3a, which is the already positioned landing threshold 3. The positioning of each rail 4 is carried out on the reference floor where the reference threshold 3a is located. The positioning of each rail 4 is also carried out using a rail positioning tool 6.

[0053] Figure 9 is a perspective view showing the state when each rail 4 is being positioned using the rail positioning tool 6 in the rail positioning step S3 of Figure 6. When positioning each rail 4 in the rail positioning step S3, the positioning tool main body 61 is attached to the reference sill 3a by a pair of main body attachment tools 62, and the positioning tool main body 61 is attached to each rail 4. This allows each rail 4 to be positioned relative to the reference sill 3a.

[0054] <Directly above floor determination process S4> After the rail positioning step S3, the immediately above floor determination step S4 is carried out. In the immediately above floor determination step S4, it is determined whether or not there is a floor immediately above the reference floor, i.e., the floor one floor above the reference floor. Since a building has multiple floors, if the reference floor is the lowest floor, there is a floor immediately above the lowest floor. If the reference floor is the highest floor and there is no floor immediately above the reference floor, the positioning work for each landing threshold 3 and each rail 4 is completed.

[0055] <Target floor setting process S5> After the immediately above floor determination step S4, if there is a floor immediately above the reference floor, a target floor setting step S5 is carried out. In the target floor setting step S5, the floor immediately above the reference floor is set as the target floor. The target floor is a floor for which the positioning of the landing threshold 3 is to be performed. In addition, in the target floor setting step S5, the landing threshold 3 to be located on the target floor is set as the target threshold 3b.

[0056] <Threshold positioning process S6> After the target floor setting step S5, a threshold positioning step S6 is carried out. In the threshold positioning step S6, the target threshold 3b is positioned using the reference threshold 3a as a reference. The positioning of the target threshold 3b using the reference threshold 3a as a reference is carried out using a threshold positioning device 5. By positioning the target threshold 3b, the target threshold 3b becomes the positioned landing threshold 3.

[0057] The threshold positioning step S6 includes a light emitter step, a light receiver step, and an adjustment step. In the threshold positioning step S6, the adjustment step is performed after the light emitter step and the light receiver step. The light emitter step may be performed before or after the light receiver step.

[0058] In the light emitter step, as shown in Fig. 2, a pair of light emitters 51 are attached to the reference threshold 3a facing upward. At this time, as shown in Fig. 3, each light emitter 51 is detachably attached to the reference threshold 3a by a light emitter attachment fixture 53. As a result, the position of each light emitter 51 coincides with the position on each reference vertical imaginary line A. Therefore, from each light emitter 51, laser light passing along each reference vertical imaginary line A is emitted upward in the vertical direction.

[0059] In the receiver step, a pair of receivers 52 are attached to the target threshold 3b facing downward, as shown in Fig. 2. At this time, each receiver 52 is attached to the target threshold 3b by each receiver attachment 54, as shown in Fig. 4. This causes the position of each receiver 52 to coincide with the position on each first attachment reference line of the target threshold 3b.

[0060] In the adjustment process, the position of the target threshold 3b relative to the reference threshold 3a is adjusted in the horizontal direction based on the amount of light received by each light receiver 52 that receives laser light emitted in the vertical direction from each light emitter 51. In the adjustment process, the position of the target threshold 3b relative to the reference threshold 3a is adjusted so that the amount of light received by each light receiver 52 exceeds a threshold and each light receiver 52 detects the laser light. When each light receiver 52 detects the laser light, the position of each light receiver 52 matches the position on each reference vertical imaginary line A, and the target threshold 3b is positioned. As a result, the target threshold 3b becomes the positioned landing threshold 3.

[0061] <Update standard floor setting process S7> After the threshold positioning step S6, the updated reference floor setting step S7 is carried out. In the updated reference floor setting step S7, the target floor on which the hall threshold 3 positioned in the threshold positioning step S6 is newly placed is set as the new reference floor. That is, in the updated reference floor setting step S7, the floor to be set as the reference floor is updated. At this time, the positioned hall threshold 3 placed on the new updated reference floor is set as the new reference threshold 3a. The initial reference floor setting step S2 and the updated reference floor setting step S7 each serve as reference floor setting steps in the elevator positioning method.

[0062] After the update reference floor setting process S7, the rail positioning process S3 is carried out on the new reference floor after the update. At this time, each rail 4 is positioned based on the new reference sill 3a placed on the new reference floor. Therefore, at this time, the rail positioning device 6 is removed from the reference floor before the update and attached to the new reference sill 3a placed on the new reference floor after the update.

[0063] Thereafter, in a directly above floor determination step S4, it is determined whether or not a floor directly above the new reference floor exists. If a floor directly above the new reference floor exists, the floor directly above the new reference floor is set as a new target floor in a target floor setting step S5. At this time, in the target floor setting step S5, the landing threshold 3 located on the new target floor is set as a new target threshold 3b.

[0064] After the directly above floor determination process S4, the unit positioning work, which sequentially performs the target floor setting process S5, threshold positioning process S6, updated reference floor setting process S7, rail positioning process S3, and directly above floor determination process S4, is repeated until it is determined in the directly above floor determination process S4 that there is no floor directly above the new reference floor.

[0065] In the threshold positioning step S6 carried out after the update reference floor setting step S7, for each unit positioning work, each light emitter 51 is removed from the reference floor before the update and attached to a new reference threshold 3a arranged on the new reference floor after the update. Also, in the threshold positioning step S6 carried out after the update reference floor setting step S7, for each unit positioning work, each light receiver 52 is removed from the target floor before the update and attached to a new target threshold 3b arranged on the new target floor after the update.

[0066] When it is determined in the immediately above floor determination step S4 that there is no floor immediately above the new reference floor, the work of positioning each landing threshold 3 and each rail 4 is completed.

[0067] As a result, when positioning each landing threshold 3, the reference floor is updated one floor at a time from the lowest floor to the floor above, and the target threshold 3b to be positioned on the target floor directly above the reference floor is positioned using the reference threshold 3a located on the reference floor as a reference. Also, when positioning each rail 4, the reference floor is updated one floor at a time from the lowest floor to the floor above, and the positioning of each rail 4 is performed using the reference threshold 3a located on the reference floor as a reference. In this embodiment, the positioning of each rail 4 is performed by sequentially moving the rail positioning tool 6 from the lowest floor to the floor above, one floor at a time, while joining unit rail members from the bottom of the elevator shaft 1 upward.

[0068] In this elevator positioning method, the floor where the positioned landing threshold 3 is located is set as the reference floor in either the initial reference floor setting step S2 or the updated reference floor setting step S7. After either the initial reference floor setting step S2 or the updated reference floor setting step S7, the floor directly above the reference floor is set as the target floor in the target floor setting step S5. After the target floor setting step S5, the target threshold 3b is positioned using the reference threshold 3a as a reference in the threshold positioning step S6. In the threshold positioning step S6, a light emitter 51 is attached to the reference threshold 3a in a light emitter step, and a light receiver 52 is attached to the target threshold 3b in a light receiver step. Furthermore, in the threshold positioning step S6, after the light emitter step and the light receiver step, the position of the target threshold 3b relative to the reference threshold 3a is adjusted based on the amount of light received by the light receiver 52, which receives laser light emitted vertically from the light emitter 51.

[0069] Therefore, the distance of the laser light from the light emitter 51 attached to the reference threshold 3a to the light receiver 52 attached to the target threshold 3b can be limited to the range of floor heights from the reference floor to the floor immediately above the reference floor. This shortens the distance the laser light travels from the light emitter 51 to the light receiver 52, thereby suppressing the spread of divergence of the laser light. Furthermore, it is possible to suppress the horizontal spread of the deviation of the laser light from the light emitter 51 as it travels from the light emitter 51 to the light receiver 52. Therefore, the horizontal position of the reference threshold 3a can be more accurately reflected in the position of the target threshold 3b, thereby suppressing a decrease in the accuracy of positioning the landing threshold 3 on each floor. Furthermore, because the light receiver 52 receives the laser light from the light emitter 51, it is possible to suppress a decrease in the accuracy of adjustment of the target threshold 3b due to individual differences between workers, thereby further reliably suppressing a decrease in the accuracy of positioning the landing threshold 3 on each floor.

[0070] Furthermore, in the rail positioning step S3, the rail positioning tool 6 is attached to the positioned landing threshold 3, and the rail positioning tool 6 is attached to each rail 4, thereby positioning each rail 4 relative to the positioned landing threshold 3. Therefore, each rail 4 can be positioned using the positioned landing threshold 3 as a reference. This eliminates the need to stretch piano wire, which serves as a reference for positioning each rail 4, vertically in the hoistway 1, and reduces the workload when positioning each rail 4.

[0071] Furthermore, in the updated reference floor setting step S7, after the threshold-to-threshold positioning step S6, the target floor where the positioned hall threshold 3 is newly placed is set as the new reference floor, and the positioned hall threshold 3 placed on the new reference floor is set as the new reference threshold 3a. Therefore, by setting the floor directly above the new reference floor as the new target floor and the hall threshold 3 placed on the new target floor as the new target threshold 3b, the new target threshold 3b can be positioned based on the new reference threshold 3a. As a result, while the reference floor is updated one floor at a time from the lowest floor to the floor above, the target threshold 3b placed on the target floor directly above the reference floor can be positioned based on the reference threshold 3a placed on the reference floor. Therefore, the positioning of the hall threshold 3 placed on each floor can be performed efficiently.

[0072] In addition, in this elevator positioning device, the light emitter 51 of the threshold positioning device 5 is detachably attached to the reference threshold 3a facing upward by a light emitter mounting fixture 53. The light receiver 52 of the threshold positioning device 5 is detachably attached to the target threshold 3b facing downward by a light receiver mounting fixture 54. The amount of light received by the light receiver 52, which receives laser light emitted vertically from the light emitter 51, changes depending on the adjustment of the position of the target threshold 3b relative to the reference threshold 3a. Therefore, by adjusting the position of the target threshold 3b relative to the reference threshold 3a based on the amount of light received by the light receiver 52, the positioning of the target threshold 3b can be easily performed. Furthermore, the distance of the laser light from the light emitter 51 to the light receiver 52 can be limited to the range of floor heights from the reference floor to the floor immediately above the reference floor. This prevents a decrease in the accuracy of positioning the landing threshold 3 at each floor. Furthermore, since the laser light from the light emitter 51 is received by the light receiver 52, it is possible to suppress a decrease in the accuracy of adjusting the target threshold 3b due to individual differences between workers, and it is possible to further reliably suppress a decrease in the accuracy of positioning the landing threshold 3 on each floor.

[0073] Furthermore, the positioning tool body 61 of the rail positioning tool 6 is attached to the positioned platform threshold 3 by the body attachment tool 62, and is also attached to each rail 4, thereby positioning each rail 4 based on the positioned platform threshold 3. Therefore, each rail 4 can be positioned based on the positioned platform threshold 3. This reduces the workload when positioning each rail 4.

[0074] In the above embodiment, in the lowest floor threshold positioning step S1, the positioning of the landing threshold 3 to be arranged on the lowest floor is performed using the threshold positioning device 5. However, the positioning of the landing threshold 3 to be arranged on the lowest floor may be performed without using the threshold positioning device 5. For example, the positioning of the landing threshold 3 to be arranged on the lowest floor may be performed while directly measuring the distance from the building standard marking 10 to the landing threshold 3 on the lowest floor using a distance measuring device or the like.

[0075] In the above embodiment, in the adjustment step of the threshold positioning step S6, an operator adjusts the position of the target threshold 3b relative to the reference threshold 3a. However, in the adjustment step of the threshold positioning step S6, the position of the target threshold 3b relative to the reference threshold 3a may be automatically adjusted by a threshold adjustment device. In this case, the threshold positioning step S6 includes an adjustment device installation step. The adjustment device installation step is a step of installing a threshold adjustment device having a movable part on the target floor and attaching the movable part to the target threshold 3b before the adjustment step. The threshold adjustment device may be installed, for example, on the floor surface of the landing on the target floor. Furthermore, the movable part of the threshold adjustment device may be, for example, a movable arm that can move while holding the target threshold 3b. In the adjustment device installation step, the threshold adjustment device is connected to the light receiver 52 so as to be able to communicate with each other via wired or wireless communication. As a result, in the adjustment step, a signal corresponding to the amount of light received by the light receiver 52 after receiving the laser light emitted from the light emitter 51 is transmitted to the threshold adjustment device. In this case, in the adjustment process, the threshold adjustment device adjusts the position of the target threshold 3b relative to the reference threshold 3a by controlling the movement of the movable part based on the amount of light received by the light receiver 52. In this way, the position of the target threshold 3b relative to the reference threshold 3a can be automatically adjusted in the adjustment process, making it even easier to position the target threshold 3b.

[0076] Furthermore, in the above embodiment, the rail positioning step S3 is performed each time the reference floor is updated in the update reference floor setting step S7. However, for example, the rail positioning step S3 may be performed on each floor after all of the platform thresholds 3 have been positioned on each floor, i.e., after all of the platform thresholds 3 arranged on each floor have become positioned platform thresholds 3. In this case, the floors on which the rail positioning step S3 is performed are moved sequentially upward, one by one, from the lowest floor to the highest floor, and each rail 4 is positioned based on the positioned platform threshold 3 on each floor. This also eliminates the need to stretch a piano wire, which serves as a reference for positioning each rail 4, vertically in the elevator shaft 1, thereby reducing the workload involved in positioning each rail 4.

[0077] The configurations described in the above embodiments are merely examples of the contents of the present disclosure. The embodiments can be combined with other known technologies. Part of the configuration of the embodiments can be omitted or modified without departing from the gist of the present disclosure.

[0078] Examples of aspects that may be included in the present disclosure are set forth below as appendices. (Appendix 1) a reference floor setting step of setting the floor on which the positioned landing threshold is located as a reference floor and the landing threshold located on the reference floor as a reference threshold; a target floor setting step of setting a floor immediately above the reference floor as a target floor and a landing threshold located on the target floor as a target threshold after the reference floor setting step; After the target floor setting step, a threshold positioning step of positioning the target threshold based on the reference threshold, thereby setting the target threshold as a positioned landing threshold; Equipped with The inter-sill positioning step includes: a light emitter step of attaching a light emitter that emits laser light to the reference threshold so that the light emitter faces upward; a receiver step of attaching a receiver capable of receiving laser light to the target threshold facing downward; an adjustment step of adjusting the position of the target threshold relative to the reference threshold based on the amount of light received by the light receiver that receives the laser light emitted in a vertical direction from the light emitter after the light emitter step and the light receiver step; An elevator positioning method comprising: (Appendix 2) A rail positioning step in which the positioning of the rail arranged along the vertical direction in the elevator shaft is performed based on the positioned landing threshold. Equipped with In the rail positioning step, a rail positioning device is attached to the positioned landing threshold, and the rail positioning device is attached to the rail, thereby positioning the rail relative to the positioned landing threshold. (Appendix 3) The threshold positioning step includes, before the adjustment step, installing a threshold adjustment device having a movable part on the target floor and attaching the movable part to the target threshold, An elevator positioning method as described in Appendix 1 or Appendix 2, in which in the adjustment process, the threshold adjustment device controls the movement of the movable part based on the amount of light received by the receiver that receives the laser light emitted from the light emitter, thereby adjusting the position of the target threshold relative to the reference threshold. (Appendix 4) The elevator positioning method according to any one of Supplementary Note 1 to Supplementary Note 3, wherein the reference floor setting step, after the threshold-to-threshold positioning step, sets the target floor where the positioned landing threshold is newly placed as the new reference floor, and sets the landing threshold placed on the new reference floor as the new reference threshold. (Appendix 5) A threshold positioning device used to position a target threshold, which is a landing threshold located on a floor immediately above a reference floor, based on a reference threshold, which is a landing threshold located on a reference floor. Equipped with The threshold positioning device includes: a light emitter that emits laser light; a light receiver capable of receiving laser light; a light emitting device mounting fixture that detachably mounts the light emitting device to the reference threshold with the light emitting device facing upward; a light receiver attachment that detachably attaches the light receiver to the target threshold with the light receiver facing downward; It has When the light emitter is attached to the reference threshold by the light emitter mounting fixture and the light receiver is attached to the target threshold by the light receiver mounting fixture, the amount of light received by the light receiver, which receives laser light emitted vertically from the light emitter, changes by adjusting the position of the target threshold relative to the reference threshold. (Appendix 6) A rail positioning tool used to position a rail arranged vertically in a hoistway, based on the positioned landing threshold. Equipped with The rail positioning tool is a positioning tool body that can be attached to the rail; a body attachment tool that detachably attaches the positioning tool body to the positioned landing threshold; It has The positioning device for an elevator described in Appendix 5, wherein the positioning device main body is attached to the positioned landing threshold by the main body mounting device and is also attached to the rail, thereby positioning the rail based on the positioned landing threshold. [Explanation of symbols]

[0079] 1 elevator shaft, 3 landing threshold, 3a reference threshold, 3b target threshold, 4 rail, 5 threshold positioning device, 6 rail positioning tool, 51 light emitter, 52 light receiver, 53 light emitter mounting tool, 54 light receiver mounting tool, 61 positioning tool main body, 62 main body mounting tool.

Claims

1. a reference floor setting step of setting the floor on which the positioned landing threshold is located as a reference floor and the landing threshold located on the reference floor as a reference threshold; a target floor setting step of setting a floor immediately above the reference floor as a target floor and a landing threshold located on the target floor as a target threshold after the reference floor setting step; After the target floor setting step, a threshold positioning step of positioning the target threshold based on the reference threshold, thereby setting the target threshold as a positioned landing threshold; Equipped with The inter-sill positioning step includes: a light emitter step of attaching a light emitter that emits laser light to the reference threshold so that the light emitter faces upward; a receiver step of attaching a receiver capable of receiving laser light to the target threshold facing downward; an adjustment step of adjusting the position of the target threshold relative to the reference threshold based on the amount of light received by the light receiver that receives the laser light emitted in a vertical direction from the light emitter after the light emitter step and the light receiver step; An elevator positioning method comprising:

2. A rail positioning step in which the positioning of the rail arranged along the vertical direction in the elevator shaft is performed based on the positioned landing threshold. Equipped with 2. The elevator positioning method according to claim 1, wherein the rail positioning step includes attaching a rail positioning tool to the positioned landing threshold and attaching the rail positioning tool to the rail, thereby positioning the rail relative to the positioned landing threshold.

3. The threshold positioning step includes, before the adjustment step, installing a threshold adjustment device having a movable part on the target floor and attaching the movable part to the target threshold, An elevator positioning method as described in claim 1 or claim 2, wherein in the adjustment process, the threshold adjustment device controls the movement of the movable part based on the amount of light received by the receiver that receives the laser light emitted from the light emitter, thereby adjusting the position of the target threshold relative to the reference threshold.

4. 3. The elevator positioning method according to claim 1, wherein the reference floor setting step, after the threshold positioning step, sets the target floor where the positioned landing threshold is newly placed as the new reference floor, and sets the landing threshold placed on the new reference floor as the new reference threshold.

5. A threshold positioning device used to position a target threshold, which is a landing threshold located on a floor immediately above a reference floor, based on a reference threshold, which is a landing threshold located on a reference floor. Equipped with The threshold positioning device includes: a light emitter that emits laser light; a light receiver capable of receiving laser light; a light emitting device mounting fixture that detachably mounts the light emitting device to the reference threshold with the light emitting device facing upward; a light receiver attachment that detachably attaches the light receiver to the target threshold with the light receiver facing downward; It has When the light emitter is attached to the reference threshold by the light emitter mounting fixture and the light receiver is attached to the target threshold by the light receiver mounting fixture, the amount of light received by the light receiver, which receives laser light emitted vertically from the light emitter, changes by adjusting the position of the target threshold relative to the reference threshold.

6. A rail positioning tool used to position a rail arranged vertically in a hoistway, based on the positioned landing threshold. Equipped with The rail positioning tool is a positioning tool body that can be attached to the rail; a body attachment tool that detachably attaches the positioning tool body to the positioned landing threshold; It has 6. An elevator positioning device as described in claim 5, wherein the positioning device main body is attached to the positioned landing threshold by the main body mounting device and is also attached to the rail, thereby positioning the rail based on the positioned landing threshold.

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