Elevator positioning method and elevator positioning device

Abstract

The present invention provides an elevator positioning method and an elevator positioning device that can suppress a decrease in the accuracy of positioning the landing threshold on each floor. [Solution] In the elevator positioning method, in the target floor setting step S5, the floor directly above the reference floor where the positioned landing sill is located is designated as the target floor. In the sill-to-sill positioning step S6, the target sill 3b of the target floor is positioned using the reference sill 3a of the reference floor as a reference. The sill-to-sill 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 sill 3a, and in the light receiver step, a light receiver 52 is attached to the target sill 3b. In the adjustment step, after the light emitter step and the light receiver step, the position of the target sill 3b relative to the reference sill 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 Art

[0002] When installing an elevator, positioning of the landing sill, rails, etc. is performed in the hoistway based on a piano wire stretched along the vertical direction in the hoistway. When performing positioning work with the piano wire stretched in the hoistway, the piano wire may interfere with the positioning work.

[0003] Patent Document 1 discloses a sill installation method for positioning a landing sill based on vertical laser light by emitting vertical laser light from a pair of laser levels installed at the bottom of the hoistway in order to avoid problems caused by the piano wire in the positioning work. [[ID=1十七]]

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] In the conventional elevator sill installation method disclosed in Patent Document 1, positioning of all landing sills arranged on each floor is performed based on the laser light emitted from the laser level installed at the bottom of the hoistway. The distance from the laser level to each landing sill becomes longer as the floor on which the landing sill is arranged approaches the top floor.

[0006] Laser light diverges as the distance traveled increases. Furthermore, depending on the precision of the angle at which the laser beam is emitted from the laser plumb bob, the horizontal deviation of the laser beam relative to the vertical line (referred to by the laser plumb bob) increases as the distance traveled increases. Therefore, the accuracy of positioning the landing threshold relative to the laser beam emitted from the laser plumb bob decreases as one approaches the top floor.

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

[0008] The elevator positioning method according to this disclosure includes a reference floor setting step in which a floor on which a positioned landing sill is located is designated as the reference floor and the landing sill located on the reference floor is designated as the reference sill; a target floor setting step in which, after the reference floor setting step, the floor directly above the reference floor is designated as the target floor and the landing sill located on the target floor is designated as the target sill; and a sill-to-sill positioning step in which, after the target floor setting step, the target sill is positioned with respect to the reference sill so that the target sill is designated as the positioned landing sill. The sill-to-sill positioning step includes a light emitter step in which a light emitter that emits laser light is attached to the reference sill with the light emitter facing upward; a light receiver step in which a light receiver capable of receiving laser light is attached to the target sill with the light receiver facing downward; and an adjustment step in which, after the light emitter step and the light receiver step, the position of the target sill relative to the reference sill is adjusted based on the amount of light received by the light receiver that receives laser light emitted vertically from the light emitter. Furthermore, the elevator positioning device according to this disclosure includes a sill positioning device used to position a target sill, which is a landing sill located on the floor directly above a standard floor, with respect to a standard sill, which is a landing sill located on a standard floor. The sill positioning device includes a light emitter that emits laser light, a light receiver capable of receiving laser light, a light emitter mounting fixture for attaching the light emitter to the standard sill with the light emitter facing upward, and a light receiver mounting fixture for attaching the light receiver to the target sill with the light receiver facing downward. When the light emitter is attached to the standard sill by the light emitter mounting fixture and the light receiver is attached to the target sill 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 sill relative to the standard sill. [Effects of the Invention]

[0009] The elevator positioning method and elevator positioning device described herein can suppress a decrease in the accuracy of positioning the landing sill. [Brief explanation of the drawing]

[0010] [Figure 1] This is a partially broken perspective view showing the landing sill and rail, which are positioned by the elevator positioning method according to Embodiment 1, in the elevator shaft. [Figure 2] Figure 1 is a perspective view showing the sill positioning device used when positioning the platform sill, and the rail positioning device used when positioning each rail. [Figure 3] Figure 2 is a perspective view showing the light emitter attached to the reference threshold. [Figure 4] This is a perspective view showing the light receiver attached to the threshold in Figure 2. [Figure 5] Figure 2 is a perspective view showing the rail positioning device. [Figure 6] This flowchart explains the procedure for positioning each platform threshold and each rail shown in Figure 1. [Figure 7] Figure 6 is a perspective view showing the state in which a pair of light emitters are attached to the bottom of the elevator shaft during the lowest floor threshold positioning process S1. [Figure 8] This is a perspective view showing the state when the position of the landing threshold located on the lowest floor is adjusted based on the laser light from each light emitter during the lowest floor threshold positioning process S1 in Figure 6. [Figure 9] Figure 6 is a perspective view showing the state when each rail is being positioned using a rail positioning device during the rail positioning process S3. [Modes for carrying out the invention]

[0011] The embodiments for carrying out the subject matter of this disclosure will be described with reference to the attached figures. In each figure, the same or corresponding parts are denoted by the same reference numerals, and redundant explanations are simplified or omitted as appropriate. The subject matter of this disclosure is not limited to the following embodiments, and any modification of any component of the embodiments or omission of any component of the embodiments is possible without departing from the spirit of this disclosure.

[0012] Embodiment 1. Figure 1 is a partially broken perspective view showing the landing sill and rails positioned by the elevator positioning method according to Embodiment 1, arranged in the elevator shaft. In the figure, the building is provided with an elevator shaft 1. Each floor of the building is provided with a landing entrance 2. On each floor, the space within the elevator shaft 1 is open to the landing through the landing entrance 2. The width direction of each landing entrance 2 coincides with the width direction of the elevator shaft 1.

[0013] A landing sill 3 is located on each floor. The landing sill 3 on each floor is located below the landing entrance 2. Each landing sill 3 is attached to the inner wall of the elevator shaft 1. Each landing sill 3 is arranged along the width direction of the elevator shaft 1.

[0014] On the upper surface of each landing sill 3, a sill groove extending along the longitudinal direction of the landing sill 3 is provided. At each landing entrance 2, a landing door (not shown) is provided. When the landing door is provided at the landing entrance 2, the landing entrance 2 is opened and closed by the landing door moving along the sill groove.

[0015] Inside the hoistway 1, a pair of rails 4 are arranged. Each rail 4 is respectively constituted by a plurality of unit rail members being continuously joined together. The pair of rails 4 are arranged facing each other in the width direction of the hoistway 1. The pair of rails 4 are used, for example, as car guide rails for guiding the vertical movement of a car (not shown).

[0016] On each floor, the positioning of the landing sill 3 in the horizontal direction is performed so that the landing sills 3 arranged on each floor are all aligned in the vertical direction. Also, on each floor, the positioning of each rail 4 in the horizontal direction is performed so that each rail 4 is arranged along the vertical direction at a predetermined rail setting position.

[0017] When positioning the landing sill 3 arranged on each floor, among each floor, the positioning of the landing sill 3 arranged on the lowest floor is performed first. When the positioning of the landing sill 3 is performed on the lowest floor, the landing sill 3 arranged on the lowest floor becomes the positioned landing sill 3.

[0018] The positioning of the landing sill 3 arranged on the floor immediately above the lowest floor, that is, the floor one above the lowest floor, is performed using a sill positioning device with reference to the positioned landing sill 3 arranged on the lowest floor.

[0019] The floor on which the positioning of each rail 4 is performed is sequentially changed from the lowest floor towards the highest floor. On each floor, the positioning of each rail 4 is performed using a rail positioning tool with reference to the positioned landing sill 3.

[0020] Figure 2 is a perspective view showing the sill positioning device used when positioning the landing sill 3 in Figure 1, and the rail positioning device used when positioning each rail 4. A pair of reference vertical virtual lines A are pre-set along the vertical direction in the elevator shaft 1. The pair of reference vertical virtual lines A are set at positions separated from each other in the width direction of the elevator shaft 1.

[0021] Each landing sill 3 has a pair of first mounting reference lines (not shown) and a pair of second mounting reference lines (not shown) pre-set. Each first mounting reference line and each second mounting reference line are imaginary lines along the thickness direction of the landing sill 3.

[0022] At each landing sill 3, the positions of the pair of first mounting reference lines are separated from each other in the longitudinal direction of the landing sill 3. Once the positioning of all the landing sills 3 on each floor is complete and all the landing sills 3 on each floor are aligned vertically, the pair of first mounting reference lines set on each landing sill 3 coincide with the pair of reference vertical virtual lines A.

[0023] At each landing sill 3, the position of the pair of second mounting reference lines is located between the pair of first mounting reference lines. The pair of second mounting reference lines serve as the reference for the mounting position of the rail positioning device 6, described later, relative to the landing sill 3. The positional relationship between the pair of first mounting reference lines and the pair of second mounting reference lines is the same at each landing sill 3.

[0024] Each landing sill 3 is provided with a pair of first mounting holes (not shown) whose individual centerlines are a pair of first mounting reference lines, and a pair of second mounting holes (not shown) whose individual centerlines are a pair of second mounting reference lines. In each landing sill 3, each first mounting hole and each second mounting hole penetrates the landing sill 3 along the thickness direction of the landing sill 3.

[0025] When positioning the landing sill 3 to be placed on the floor directly above the lowest floor, the lowest floor on which the positioned landing sill 3 is located is designated as the reference floor, and the floor directly above the reference floor is designated as the target floor. Furthermore, the landing sill 3 located on the reference floor is designated as the reference sill 3a, and the landing sill 3 located on the target floor is designated as the target sill 3b.

[0026] The target threshold 3b is positioned using the reference threshold 3a as a reference. When the target threshold 3b is positioned using the reference threshold 3a as a reference, 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 mounted on the upper surface of the reference sill 3a, facing upward. The position of each light emitter 51 relative to the reference sill 3a is determined with reference to each of the first mounting reference lines of the reference sill 3a. When each light emitter 51 is mounted on the reference sill 3a, the position of each light emitter 51 is on each of the first mounting reference lines of the reference sill 3a.

[0028] Each light emitter 51 emits laser light. When each light emitter 51 is attached to the reference threshold 3a, each light emitter 51 emits laser light that passes along each first mounting reference line. Since the reference threshold 3a is the landing threshold 3 which has already been positioned, when each light emitter 51 is attached to the reference threshold 3a, each light emitter 51 emits laser light that passes along each reference vertical virtual line A upwards.

[0029] A pair of light receivers 52 are mounted facing downwards on the underside of the target sill 3b. The position of each light receiver 52 relative to the target sill 3b is determined with reference to each of the first mounting reference lines of the target sill 3b. When each light receiver 52 is mounted on the target sill 3b, the position of each light receiver 52 is on each of the first mounting reference lines of the target sill 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 to detect laser light based on the amount of light it receives. That is, each light receiver 52 detects laser light when the amount of light it receives exceeds a threshold, and does not detect laser light when the amount of light it receives is below the threshold.

[0031] The amount of light received by each photodetector 52, which receives laser light from each light emitter 51, decreases as the amount of deviation of the position of each photodetector 52 relative to each reference vertical virtual line A increases. When the position of the photodetector 52 coincides with its position on the reference vertical virtual line A, the amount of light received by the photodetector 52 exceeds a threshold, and the photodetector 52 detects the laser light. In this embodiment, when the photodetector 52 detects the laser light, a detection lamp provided on the photodetector 52 lights up.

[0032] The positioning of the target threshold 3b is performed by adjusting the position of the target threshold 3b in the horizontal direction relative to the reference threshold 3a. 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 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 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 a 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 the laser light. When the amount of light received by each light receiver 52 exceeds the threshold and each light receiver 52 detects the laser light, the position of each light receiver 52 coincides with the position on each reference vertical virtual line A, and the position of the target threshold 3b becomes aligned with the reference threshold 3a in the vertical direction. 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 with reference to each first mounting reference line of the reference threshold 3a. The position of each light receiver 52 relative to the target threshold 3b is determined with reference to each first mounting reference line of the target threshold 3b. Therefore, the positioning of the target threshold 3b is performed with reference to the reference threshold 3a by adjusting the position of each light receiver 52 relative to each light emitter 51.

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

[0036] As shown in Figure 3, the pair of light-emitting device mounting brackets 53 detachably attach the pair of light-emitting devices 51 to the reference sill 3a with the devices facing upward. Pins, bolts, etc., are used as each light-emitting device mounting bracket 53. Each light-emitting device mounting bracket 53 is attached to the reference sill 3a by passing through the first mounting holes of the reference sill 3a from below and protruding above the reference sill 3a.

[0037] As shown in Figure 4, the pair of light receiver mounting brackets 54 are used to individually and detachably attach the pair of light receivers 52 to the target sill 3b with the receivers facing downwards. Pins, bolts, etc., can be used as each light receiver mounting bracket 54. Each light receiver mounting bracket 54 is attached to the target sill 3b by passing through the first mounting holes of the target sill 3b from above and protruding downwards from the target sill 3b.

[0038] When each rail 4 is positioned, as shown in Figure 2, the rail positioning device 6 is attached to the already positioned landing sill 3, and the rail positioning device 6 is attached to each rail 4. As a result, the position of each rail 4 relative to the already positioned landing sill 3 becomes a predetermined rail setting position in the horizontal direction. In Figure 2, the rail positioning device 6 is attached to the target sill 3b, which has already become a positioned landing sill 3 by positioning based on the reference sill 3a.

[0039] Figure 5 is a perspective view showing the rail positioning device 6 of Figure 2. The rail positioning device 6 comprises a positioning device body 61 and a pair of body mounting fixtures 62.

[0040] A pair of main mounting brackets 62 detachably attach the positioning bracket body 61 to the positioned landing sill 3. Pins, bolts, etc., are used as each main mounting bracket 62. Each main mounting bracket 62 is attached to the positioned landing sill 3 by being inserted from below into each second mounting hole in the positioned landing sill 3. As a result, when each main mounting bracket 62 is attached to the positioned landing sill 3, the position of each main mounting bracket 62 is on each second mounting reference line of the positioned landing sill 3. The position of each main mounting bracket 62 relative to the positioned landing sill 3 is determined with reference to each second mounting reference line of the positioned landing sill 3. When each main mounting bracket 62 is attached to the positioned landing sill 3, each main mounting bracket 62 protrudes above the positioned landing sill 3.

[0041] The positioning device body 61 is attached to the positioned landing sill 3 via each body mounting bracket 62. The positioning device body 61 can also be attached to each rail 4. The positioning device body 61 is attached to each rail 4 by gripping each rail 4.

[0042] The positioning device body 61 is attached to the landing sill 3, which has already been positioned by the body mounting fixture 62, and is also attached to each rail 4, thereby mechanically positioning each rail 4 based on the positioned landing sill 3.

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

[0044] Multiple sub-gauges 612 are gauges that connect the main gauge 611 to the positioned landing sill 3. Each sub-gauge 612 is attached to the positioned landing sill 3 via one of a pair of main mounting fixtures 62. In this embodiment, the main gauge 611 is connected to the positioned landing sill 3 by three sub-gauges 612. The position of the main gauge 611 relative to the positioned landing sill 3 is determined by the fact that the main gauge 611 is connected to the positioned landing sill 3 by multiple sub-gauges 612. In this way, the position of the main gauge 611 relative to the positioned landing sill 3 is determined, and the position of each rail 4 relative to the main gauge 611 is determined, so that the position of the pair of rails 4 is determined relative to the positioned landing sill 3.

[0045] Next, we will describe an elevator positioning method that involves positioning the landing sills 3 located on each floor of the building and positioning the pair of rails 4 located within the elevator shaft 1. Figure 6 is a flowchart illustrating the procedure for positioning each landing sill 3 and each rail 4 as shown in Figure 1. The elevator positioning method includes a lowest floor sill positioning step S1, an initial reference floor setting step S2, a rail positioning step S3, an upper floor determination step S4, a target floor setting step S5, a sill-to-sill positioning step S6, and an updated reference floor setting step S7. The worker positions each landing sill 3 and each rail 4 by performing the lowest floor sill positioning step S1, the initial reference floor setting step S2, the rail positioning step S3, the upper floor determination step S4, the target floor setting step S5, the sill-to-sill positioning step S6, and the updated reference floor setting step S7. When positioning each landing sill 3 and each rail 4, the lowest floor sill positioning step S1 is performed first.

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

[0047] Here, Figure 7 is a perspective view showing the state in which a pair of light emitters 51 are attached to the bottom of the elevator shaft 1 in the lowest floor sill positioning process S1 of Figure 6. The position in which each light emitter 51 is attached to the bottom of the elevator shaft 1 is determined based on the building reference lines 10 that are predetermined as building reference lines at the landing of the lowest floor of the building. For example, each light emitter 51 is attached to the bottom of the elevator shaft 1 at a distance L from the building reference lines 10 in the depth direction of the elevator shaft 1. As a result, the position in which the pair of light emitters 51 are attached to the bottom of the elevator shaft 1 is on a pair of reference vertical virtual lines A. Laser light is emitted upward from each light emitter 51, passing along each reference vertical virtual line A.

[0048] After this, 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] Figure 8 is a perspective view showing the state when the position of the landing sill 3 located on the lowest floor is adjusted based on the laser light from each light emitter 51 in the lowest floor sill positioning process S1 of Figure 6. When adjusting the position of the landing sill 3 located on the lowest floor, a pair of light receivers 52 are attached to the landing sill 3 located on the lowest floor, facing downwards. As a result, the position of each light receiver 52 relative to the landing sill 3 becomes a position on each of the first mounting reference lines of the landing sill 3.

[0050] The position of the landing sill 3 located on the lowest floor is adjusted horizontally with respect to each laser beam, based on the amount of light received by each receiver 52, which receives laser light emitted vertically from each emitter 51. When the amount of light received by each receiver 52 exceeds a threshold and each receiver 52 detects each laser beam, the position of each receiver 52 coincides with the position on each reference vertical virtual line A. In this state, the position of the landing sill 3 located on the lowest floor is fixed. Therefore, the position of the landing sill 3 becomes the sill setting position with respect to each reference vertical virtual line A, and the positioning of the landing sill 3 located on the lowest floor is completed. As a result, the landing sill 3 located on the lowest floor becomes the positioned landing sill 3.

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

[0052] <Rail positioning process S3> After the initial reference floor setting process S2, the rail positioning process S3 is performed. In the rail positioning process S3, each rail 4 is positioned based on the reference sill 3a, which is a pre-positioned landing sill 3. The positioning of each rail 4 is performed on the reference floor where the reference sill 3a is located. In addition, the positioning of each rail 4 is performed 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 process S3 of Figure 6. When positioning each rail 4 in the rail positioning process S3, the positioning tool body 61 is attached to the reference sill 3a by a pair of body mounting fixtures 62, and the positioning tool body 61 is attached to each rail 4. This positions each rail 4 relative to the reference sill 3a.

[0054] <Directly above floor determination process S4> After the rail positioning process S3, the direct floor determination process S4 is performed. In the direct floor determination process S4, it is determined whether or not there is a floor directly above the reference floor, that is, a floor one level above the reference floor. Since a building has multiple floors, if the reference floor is the lowest floor, then there is a floor directly above the lowest floor. If the reference floor is the highest floor and there is no floor directly above the reference floor, the positioning work for each landing sill 3 and each rail 4 is completed.

[0055] <Target floor setting process S5> After the direct-upper floor determination process S4, if there is a floor directly above the reference floor, the target floor setting process S5 is performed. In the target floor setting process S5, the floor directly above the reference floor is designated as the target floor. The target floor is the floor on which the landing sill 3 is to be positioned. Also, in the target floor setting process S5, the landing sill 3 placed on the target floor is designated as the target sill 3b.

[0056] <Threshold positioning process S6> After the target floor setting process S5, the sill-to-sill positioning process S6 is performed. In the sill-to-sill positioning process S6, the target sill 3b is positioned with reference sill 3a as the reference. The positioning of the target sill 3b with reference sill 3a is performed using the sill positioning device 5. Once the target sill 3b is positioned, it becomes the positioned landing sill 3.

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

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

[0059] In the light-receiving process, as shown in Figure 2, a pair of light-receiving devices 52 are mounted downwards on the target threshold 3b. At this time, each light-receiving device 52 is attached to the target threshold 3b by a light-receiving mounting fixture 54, as shown in Figure 4. As a result, the position of each light-receiving device 52 coincides with its position on each of the first mounting reference lines of the target threshold 3b.

[0060] In the adjustment process, the position of the target sill 3b relative to the reference sill 3a is adjusted horizontally based on the amount of light received by each light receiver 52, which receives laser light emitted vertically from each light emitter 51. In the adjustment process, the position of the target sill 3b relative to the reference sill 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 coincides with the position on each reference vertical virtual line A, and the target sill 3b is positioned. As a result, the target sill 3b becomes the positioned landing sill 3.

[0061] <Update standard floor setting process S7> After the sill-to-sill positioning process S6, the updated reference floor setting process S7 is performed. In the updated reference floor setting process S7, the target floor on which the landing sill 3, which was positioned in the sill-to-sill positioning process S6, is newly placed is designated as the new reference floor. In other words, the updated reference floor setting process S7 updates the floor to be designated as the reference floor. At this time, the positioned landing sill 3 placed on the newly updated reference floor is designated as the new reference sill 3a. The initial reference floor setting process S2 and the updated reference floor setting process S7 are both reference floor setting processes in the elevator positioning method.

[0062] After the updated reference floor setting process S7, the rail positioning process S3 is performed 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] Next, in the direct-upper-floor determination step S4, it is determined whether or not there is a floor directly above the new standard floor. If there is a floor directly above the new standard floor, in the target floor setting step S5, the floor directly above the new standard floor is designated as the new target floor. At this time, in the target floor setting step S5, the landing threshold 3 located on the new target floor is designated as the new target threshold 3b.

[0064] After the direct floor determination process S4, the unit positioning work, which involves sequentially performing the target floor setting process S5, the threshold positioning process S6, the updated reference floor setting process S7, the rail positioning process S3, and the direct floor determination process S4, is repeated until the direct floor determination process S4 determines that there is no direct floor above the new reference floor.

[0065] In the threshold positioning process S6, which is performed after the updated reference floor setting process S7, each light emitter 51 is removed from the reference floor before the update and attached to the new reference threshold 3a located on the new reference floor after the update. Also, in the threshold positioning process S6, which is performed after the updated reference floor setting process S7, each light receiver 52 is removed from the target floor before the update and attached to the new target threshold 3b located on the new target floor after the update.

[0066] If it is determined in the direct-upper-floor determination process S4 that there is no new direct-upper-floor of the reference floor, the positioning work for each landing sill 3 and each rail 4 is completed.

[0067] As a result, when positioning each landing sill 3, the reference floor is sequentially updated from the lowest floor up one floor at a time, and the position of the target sill 3b, which is located on the target floor that is directly above the reference floor, is performed using the reference sill 3a located on the reference floor as a reference. Similarly, when positioning each rail 4, the position of each rail 4 is performed using the reference sill 3a located on the reference floor as a reference, while sequentially updating the reference floor from the lowest floor up one floor at a time. In this embodiment, the positioning of each rail 4 is performed by sequentially moving the rail positioning device 6 from the lowest floor up one floor at a time while joining the unit rail members upwards from the bottom of the elevator shaft 1.

[0068] In this elevator positioning method, in either the initial reference floor setting process S2 or the updated reference floor setting process S7, the floor on which the positioned landing sill 3 is located is designated as the reference floor. After either the initial reference floor setting process S2 or the updated reference floor setting process S7, in the target floor setting process S5, the floor directly above the reference floor is designated as the target floor. After the target floor setting process S5, in the sill-to-sill positioning process S6, the target sill 3b is positioned with respect to the reference sill 3a. In the sill-to-sill positioning process S6, a light emitter 51 is attached to the reference sill 3a in the light emitter process, and a light receiver 52 is attached to the target sill 3b in the light receiver process. Also in the sill-to-sill positioning process S6, after the light emitter process and the light receiver process, the position of the target sill 3b relative to the reference sill 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 beam from the light emitter 51 attached to the reference sill 3a to the light receiver 52 attached to the target sill 3b can be limited to the floor height range from the reference floor to the floor directly above the reference floor. This shortens the distance of the laser beam from the light emitter 51 to the light receiver 52, suppressing the expansion of laser beam divergence. It also suppresses the expansion of the horizontal displacement of the laser beam relative to the light emitter 51 as the laser beam reaches the light receiver 52. Consequently, the position of the reference sill 3a in the horizontal direction can be more accurately reflected in the position of the target sill 3b, suppressing a decrease in the accuracy of positioning the landing sill 3 on each floor. Furthermore, since the light receiver 52 receives the laser beam from the light emitter 51, it is possible to suppress a decrease in the accuracy of adjusting the target sill 3b due to individual differences among workers, further reliably suppressing a decrease in the accuracy of positioning the landing sill 3 on each floor.

[0070] Furthermore, in the rail positioning process S3, the rail positioning device 6 is attached to the already positioned landing sill 3, and the rail positioning device 6 is attached to each rail 4, thereby positioning each rail 4 relative to the already positioned landing sill 3. As a result, each rail 4 can be positioned using the already positioned landing sill 3 as a reference. This eliminates the need to stretch piano wire, which serves as a reference for positioning each rail 4, vertically along the hoistway 1, thereby reducing the workload when positioning each rail 4.

[0071] Furthermore, in the updated reference floor setting process S7, after the sill positioning process S6, the target floor where the positioned landing sills 3 are newly placed is designated as the new reference floor, and the positioned landing sills 3 placed on the new reference floor are designated as the new reference sills 3a. Therefore, the floor directly above the new reference floor is designated as the new target floor, and the landing sills 3 placed on the new target floor are designated as the new target sills 3b, allowing the positioning of the new target sills 3b to be performed using the new reference sills 3a as a reference. This allows the reference floors to be updated sequentially from the lowest floor upwards, one floor at a time, while positioning the target sills 3b placed on the target floor (which is the floor directly above the reference floor) to be performed using the reference sills 3a placed on the reference floor as a reference. Consequently, the positioning of the landing sills 3 placed on each floor can be performed efficiently.

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

[0073] Furthermore, the positioning device body 61 of the rail positioning device 6 is attached to the already positioned landing sill 3 by the body mounting device 62, and is also attached to each rail 4, thereby positioning each rail 4 based on the already positioned landing sill 3. In this way, each rail 4 can be positioned based on the already positioned landing sill 3. This reduces the workload when positioning each rail 4.

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

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

[0076] Furthermore, in the above embodiment, the rail positioning process S3 is performed each time the floor designated as the reference floor is updated in the update reference floor setting process S7. However, for example, the rail positioning process S3 may be performed on each floor after all the landing sills 3 have been positioned on each floor, that is, after all the landing sills 3 placed on each floor have been positioned. In this case, the floor on which the rail positioning process S3 is performed is moved sequentially from the lowest floor to the highest floor, one floor at a time, and each rail 4 is positioned based on the positioned landing sills 3 on each floor. Even in this way, it is not necessary to stretch a piano wire that serves as a reference for positioning each rail 4 vertically along the hoistway 1, and the workload when positioning each rail 4 can be reduced.

[0077] The configurations shown in the embodiments described above are merely examples of the content of this disclosure. The embodiments can be combined with other known technologies. Some parts of the configurations of the embodiments can be omitted or modified without departing from the gist of this disclosure.

[0078] Examples of aspects that may be included in this disclosure are listed below as an addendum. (Note 1) A reference floor setting step is to set a reference floor on which a positioned landing sill is placed, and to set a reference landing sill on the said reference floor as the reference sill. Following the standard floor setting step, a target floor setting step is performed in which the floor directly above the standard floor is designated as the target floor, and the landing threshold located on the target floor is designated as the target threshold. After the aforementioned target floor setting step, the target sill is positioned using the reference sill as a reference, thereby making the target sill a positioned landing sill in a sill positioning step. Equipped with, The aforementioned threshold positioning step is, A light emitter step involves mounting a light emitter that emits laser light upwards onto the reference threshold, A light receiver step involves attaching a light receiver capable of receiving laser light to the target threshold with the receiver facing downwards, After the light emitter step and the light receiver step, an adjustment step is performed to adjust the position of the target threshold relative to the reference threshold based on the amount of light received by the light receiver, which receives the laser light emitted vertically from the light emitter. An elevator positioning method having [a specific feature / feature]. (Note 2) Rail positioning process: Positioning of rails arranged vertically in the elevator shaft, using the previously positioned landing sill as a reference. Equipped with, The elevator positioning method according to Appendix 1, wherein the rail positioning step involves attaching a rail positioning device to the positioned landing sill and attaching the rail positioning device to the rail, thereby positioning the rail relative to the positioned landing sill. (Note 3) The threshold positioning step includes, before the adjustment step, an adjustment device installation step in which a threshold adjustment device having a movable part is installed on the target floor and the movable part is attached to the target threshold. In the adjustment step, the sill adjustment device controls the movement of the movable part based on the amount of light received by the light receiver, which receives the laser light emitted from the light emitter, thereby adjusting the position of the target sill relative to the reference sill according to Appendix 1 or Appendix 2. (Note 4) The elevator positioning method according to any one of the appendices 1 to 3, wherein the reference floor setting step, after the sill positioning step, designates the target floor on which the positioned landing sill is newly placed as the new reference floor, and the landing sill placed on the new reference floor as the new reference sill. (Note 5) Threshold positioning device used to position a target sill, which is a landing sill located on the floor directly above a standard floor, using a standard sill, which is a landing sill located on a standard floor, as a reference. Equipped with, The aforementioned threshold positioning device is A light emitter that emits laser light, A light receiver capable of receiving laser light, A mounting bracket for a light emitter that detachably attaches the light emitter to the reference threshold with the light emitter facing upward, A light receiver mounting bracket for attaching the light receiver to the target threshold in a detachable manner, with the light receiver facing downwards. It has, An elevator positioning device in which, 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. (Note 6) A rail positioning device used to position rails arranged vertically in an elevator shaft, based on the previously positioned landing sill. Equipped with, The rail positioning device is A positioning device body that can be attached to the aforementioned rail, A mounting bracket for attaching the positioning device body to the positioned landing threshold in a detachable manner. It has, The elevator positioning device described in Appendix 5, wherein the positioning device body is attached to the positioned landing sill by the body mounting fixture and is also attached to the rail, thereby positioning the rail with respect to the positioned landing sill. [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 device, 51 light emitter, 52 light receiver, 53 mounting bracket for light emitter, 54 mounting bracket for light receiver, 61 positioning device body, 62 body mounting bracket.

Claims

1. A reference floor setting step is to set a reference floor on which a positioned landing sill is placed, and to set a reference landing sill on the said reference floor as the reference sill. Following the standard floor setting step, a target floor setting step is performed in which the floor directly above the standard floor is designated as the target floor, and the landing threshold located on the target floor is designated as the target threshold. After the aforementioned target floor setting step, the target sill is positioned using the reference sill as a reference, thereby making the target sill a positioned landing sill in a sill positioning step. Equipped with, The aforementioned threshold positioning step is, A light emitter step involves mounting a light emitter that emits laser light upwards onto the reference threshold, A light receiver step involves attaching a light receiver capable of receiving laser light to the target threshold with the receiver facing downwards, After the light emitter step and the light receiver step, an adjustment step is performed to adjust the position of the target threshold relative to the reference threshold based on the amount of light received by the light receiver, which receives the laser light emitted vertically from the light emitter. An elevator positioning method having [a specific feature / feature].

2. Rail positioning process: Positioning of rails arranged vertically in the elevator shaft, using the previously positioned landing sill as a reference. Equipped with, The elevator positioning method according to claim 1, wherein the rail positioning step involves attaching a rail positioning device to the positioned landing sill and attaching the rail positioning device to the rail, thereby positioning the rail relative to the positioned landing sill.

3. The threshold positioning step includes, before the adjustment step, an adjustment device installation step in which a threshold adjustment device having a movable part is installed on the target floor and the movable part is attached to the target threshold. The elevator positioning method according to claim 1 or 2, wherein in the adjustment step, the threshold adjustment device controls the movement of the movable part based on the amount of light received by the light receiver that receives the laser light emitted from the light emitter, thereby adjusting the position of the target threshold with respect to the reference threshold.

4. The elevator positioning method according to claim 1 or 2, wherein the reference floor setting step, after the sill positioning step, sets the target floor on which the positioned landing sill is newly placed as the new reference floor, and sets the landing sill placed on the new reference floor as the new reference sill.

5. Threshold positioning device used to position a target sill, which is a landing sill located on the floor directly above a standard floor, using a standard sill, which is a landing sill located on a standard floor, as a reference. Equipped with, The aforementioned threshold positioning device is A light emitter that emits laser light, A light receiver capable of receiving laser light, A mounting bracket for a light emitter that detachably attaches the light emitter to the reference threshold with the light emitter facing upward, A light receiver mounting bracket for attaching the light receiver to the target threshold in a detachable manner, with the light receiver facing downwards. It has, An elevator positioning device in which, 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 device used to position rails arranged vertically in an elevator shaft, based on the previously positioned landing sill. Equipped with, The rail positioning device is A positioning device body that can be attached to the aforementioned rail, A mounting bracket for attaching the positioning device body to the positioned landing threshold in a detachable manner. It has, The elevator positioning device according to claim 5, wherein the positioning device body is attached to the positioned landing sill by the body mounting device and is also attached to the rail, thereby positioning the rail with reference to the positioned landing sill.

Images