JP2018188234A - Landing position adjustment device of elevator and landing position adjustment method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a landing position adjustment device of an elevator capable of detecting a position deviation amount of a landing position of the elevator car.SOLUTION: The landing position adjustment device comprises a distance measuring equipment (30) attached to either one of a car sill (10) and a landing sill (20) and a reflector (40) attached to the other, and the distance measuring equipment (30) has a light projector/receiver (31), the reflector (40) has a reflective surface (50) to reflect the irradiation light of the light projector/receiver (31) to the light projector/receiver (31), the reflective surface (50) has a plurality of surfaces formed in a step-wise shape, which have a different distance from the light projector/receiver (31), and the landing position adjustment device detects the correction quantity of the landing position at the landing position based on the distance from the light projector/receiver (31) to the reflector (50).SELECTED DRAWING: Figure 2

Description

  The present invention relates to a landing position adjusting device that detects a correction amount of a landing position of a car in an elevator apparatus and a landing position adjusting method that adjusts the landing position of a car.

  Conventionally, an elevator has been provided with a device for detecting the position of a car. For example, in the car position detection device described in Patent Document 1, a distance detector is provided on the car side, and the detected part formed integrally with the landing sill differs in the horizontal detection distance between the central part and the upper and lower sides thereof. By adopting such a shape, it is possible to detect whether the position of the car at the time of landing is shifted upward or downward with respect to the landing threshold of each floor. In addition, the apparatus described in Patent Document 2 detects a so-called door zone plate fixed to each floor by a position detector provided in a car, and when the car is landed, When an operator measures the amount of positional deviation in the vertical direction using a scale, etc., and the operator inputs the memorized amount of positional deviation on each floor to the control device and stores it, so that the car is landed on each floor In addition, the landing position of the car is corrected based on the stored positional deviation amount of each floor.

Japanese Patent No. 4869790 JP 2004-51311 A

  However, the car position detection device described in Patent Document 1 cannot detect the amount of displacement of the car landing position. In addition, in the apparatus described in Patent Document 2, a car is run in advance, and the amount of displacement of the landing position of each floor is measured by an operator using a scale or the like, and is input to the control device and stored. A process is necessary, and the burden on the operator is large.

  The present invention has been made in order to solve the above-described problems, and detects the correction amount of the position of the car by measuring the positional deviation amount of the landing position of the car without using a scale or the like. It is an object of the present invention to obtain a landing position adjusting device that can perform the above-described operation.

  The landing position adjusting device according to the present invention includes a distance measuring device attached to one of the car sill and the landing sill, and a reflector attached to the other. The distance measuring device has a light projecting / receiving unit. The reflector has a reflecting surface that reflects the light emitted from the light projecting / receiving unit to the light projecting / receiving unit, and the reflecting surface has a plurality of surfaces formed in steps that are different in distance from the light projecting / receiving unit. Then, the correction amount of the landing position is detected based on the distance from the light projecting / receiving unit to the reflecting surface at the landing position.

  According to the landing position adjusting apparatus according to the present invention, the correction amount of the landing position of the car can be detected without an operator using a scale or the like.

It is a figure which shows the car threshold and the landing threshold of the elevator apparatus provided with the landing position adjusting apparatus by Embodiment 1 of this invention. In the elevator apparatus of FIG. 1, it is a figure which shows the state which the landing position of the car has shifted | deviated upwards. It is a figure which shows the indicator of the landing position adjustment apparatus by Embodiment 1 of this invention. It is a figure which shows the landing position adjustment apparatus by Embodiment 2 of this invention. It is a figure which shows the landing position adjustment apparatus by Embodiment 3 of this invention. It is a figure which shows the modification of the landing position adjustment apparatus by Embodiment 3 of this invention. It is the schematic which shows the whole elevator apparatus provided with the landing position adjustment apparatus by Embodiment 2 of this invention. It is a figure explaining the control at the time of the raise movement of the car by the elevator apparatus of FIG.

  Hereinafter, preferred embodiments of a landing position adjusting device and a landing position adjusting method of the present invention will be described with reference to the drawings.

Embodiment 1 FIG.
FIG. 1 is a cross-sectional view of a car sill 10 in a car 100 and a landing sill 20 in a landing 200 provided with a landing position adjusting apparatus according to Embodiment 1 of the present invention. As shown in FIG. 1, the landing position adjusting apparatus of the present invention is similar to the laser rangefinder 30 attached to the lower part of the car sill 10 using a magnet or a double-sided adhesive tape, and the lower part of the landing sill 20. And the reflector 40 attached to.

  As shown in FIG. 1, the laser distance meter 30 has a light projecting / receiving unit 31. The light projecting / receiving unit 31 includes a light projector that emits laser light and a light receiver that receives the laser light. On the other hand, the reflector 40 has a reflecting surface 50. The light projecting / receiving unit 31 of the laser distance meter 30 irradiates the laser beam toward the reflecting surface 50 and receives the laser beam reflected by the reflecting surface 50. In FIG. 1, the double-headed arrow described between the light projecting / receiving unit 31 and the reflecting surface 50 indicates the laser light traveling from the light projecting / receiving unit 31 of the laser distance meter 30 toward the reflecting surface 50 and the light reflected and reflected by the reflecting surface 50. The laser beam toward the unit 31 is shown.

  The laser distance meter 30 is a distance from the light projecting / receiving unit 31 to the reflecting surface 50 based on a phase difference between the light projecting wavelength and the light receiving wavelength, which is generated according to the distance from the light projecting / receiving unit 31 to the reflecting surface 50. Is calculated. In the first embodiment of the present invention, the position that is the starting point of the distance measured by the laser rangefinder 30 is the end face 30a of the laser rangefinder 30 that faces the hoistway, and this end face 30a is shown in FIG. As shown, the car sill 10 is set flush with the end face 10a facing the hoistway.

  The reflection surface 50 is formed at the center in the vertical direction with a height of 2h, and is formed above and below the reference surface C. Each of the reflection surfaces 50 includes a plurality of surfaces each having a height h and a depth d. It is comprised by. The height h and the depth d are the same. The laser light emitted from the light projecting / receiving unit 31 of the laser distance meter 30 is applied to the center in the vertical direction of the reference plane C when the upper surface of the car sill 10 and the upper surface of the landing sill 20 are at the same height. Is done.

  The width of the reference plane C having a height of 2h corresponds to the allowable range of the landing position when the car 100 is landed on each floor. That is, the allowable range of the landing position of the car 100 is a range of 1 h upward and 1 h downward with respect to the center of the reference plane C in the vertical direction. When the landing position of the car 100 is within the allowable range, the landing position is not corrected, and when the landing position exceeds the allowable range, the landing position is corrected.

  The laser distance meter 30 has an offset function in which a constant value is input and set to be added or subtracted from the measured value. This constant value is referred to as an offset value. FIG. 1 shows a state in which the car 100 has landed within the allowable range of the landing position, and the laser light of the laser rangefinder 30 is applied to the reference surface C of the reflecting surface 50. L1 which is the distance from the light projecting / receiving unit 31 to the reference plane C at this time is input to the laser distance meter 30 as an offset value to be subtracted from the measured value. Thereby, when the laser beam is irradiated onto the reference plane C and the landing position is within the allowable range, the display on the display 32 becomes zero.

  FIG. 2 shows a case where the car 100 is landed 3.5 hours above the landing 200. At this time, the laser light is irradiated 3.5 hours above the center of the reference surface C of the reflecting surface 50. Since the height in the height direction of the reference surface C is 2 h, the laser light is irradiated to a surface 2.5 h above the upper end of the reference surface C. Since the height of h is formed at h, the laser beam is irradiated to the surface three steps above the reference plane C.

  On the other hand, since each surface of the reflective surface 50 has a depth d, the distance from the light projecting / receiving unit 31 to the surface three steps above the reference surface C is as shown in FIG. It becomes “L1-3d”, which is 3d shorter than L1 which is the distance up to. The display 32 displays a numerical value corresponding to “−3d” obtained by subtracting the offset value L1 from “L1−3d”.

  Here, since the height h and the depth d are formed to be the same, the amount of change in the measured value of the laser distance meter 30 corresponds to the amount of positional deviation in the vertical direction of the car 100. When the measured value of the distance meter 30 changes by -3d, the amount of positional deviation in the vertical direction of the car 100 is 3h.

  For example, as shown in FIG. 2, when the laser beam is irradiated to the position of the third step above the reference plane C of the reflecting surface 50, the display 32 displays “−3.0” as shown in FIG. Is displayed. If d = h = 1 (mm), in the case of FIG. 2, if the landing position of the car 100 is corrected downward by 3 mm, the landing position falls within the allowable range of the reference position, and is displayed on the display 32. The value and the sign indicate the amount of correction of the car 100 in the vertical direction. Therefore, the worker may correct the landing position of the car 100 based on the numerical value and sign displayed on the display 32.

  According to such a landing position adjusting device, the laser distance meter 30 attached to the car sill 10 and the reflector 40 attached to the landing sill 20 are provided. The reflector 40 has a reflection surface 50 that reflects the irradiation light of the light projecting / receiving unit 31 to the light projecting / receiving unit 31, and the reflecting surface 50 is formed in a stepped shape with different distances from the light projecting / receiving unit 31. The correction amount and the correction direction of the landing position can be detected based on the distance from the light projecting / receiving unit 31 to the reflecting surface 50 at the landing position.

  In the first embodiment, the laser distance meter 30 is attached to the lower part of the car sill 10 and the reflector 40 is attached to the lower part of the landing sill 20, but this is not restrictive. For example, the laser distance meter 30 may be attached to the lower part of the landing sill 20, and the reflector 40 may be attached to the lower part of the car sill 10. In the first embodiment, the laser distance meter 30 that measures the distance based on the phase difference between the light projection wavelength and the light reception wavelength is used as the distance measurement device. However, the distance measurement device is not limited to this. Any distance meter that can measure the distance may be used.

  In the first embodiment, the depth d of the plurality of surfaces constituting the reflection surface 50 is set to a size equal to the height h. However, the present invention is not limited to this. For example, when the depth d is set to a size different from the height h, the correspondence between the measured value by the laser distance meter 30 on each surface and the vertical landing position of the car 100 is previously shown in the correspondence table. The landing position may be corrected with reference to this correspondence table.

Embodiment 2. FIG.
FIGS. 4A and 4B are configuration diagrams showing the car sill 10 and the landing sill 20 provided with the landing position adjusting device according to the second embodiment of the present invention. As shown in FIG. 4, the landing position adjusting apparatus of the second embodiment has a reflector 41 attached to the end face of the landing sill 20 facing the hoistway. Other configurations are the same as those in the first embodiment.

  As shown in FIGS. 4A and 4B, the reflector 41 is centered on a reference surface C having a width of 2 h in the vertical direction, similar to the reflecting surface 50 of the reflector 40 of the first embodiment. It has a reflecting surface 51 having a plurality of stepped surfaces on the top and bottom. Further, a reflective surface 52 is provided above the reflective surface 51 and is formed in a plate shape having a thickness t, and the distance measured by the laser rangefinder 30 is constant. On the other hand, below the reflecting surface 51, similarly to the reflecting surface 52, a reflecting surface 53 formed in a plate shape having a thickness t and having a constant distance measured by the laser rangefinder 30 is provided. The distance from the light projecting / receiving unit 31 to the reflecting surface 52 and the distance from the light projecting / receiving unit 31 to the reflecting surface 53 are the same, and the distance from the light projecting / receiving unit 31 to each surface of the reflecting surface 51 is different. It is formed as follows.

  The car sill 10 and the laser distance meter 30 indicated by broken lines in FIGS. 4A and 4B show a state where the car 100 is stopped at the reference position in the horizontal direction and the vertical direction. The distance between the end face 10a facing the hoistway of the car sill 10 and the end face 20a facing the hoistway of the landing sill 20 at this reference position is defined as a reference value L2. “L2-t” obtained by subtracting the thickness t of the reflecting surfaces 52 and 53 from the reference value L2 is input to the laser distance meter 30 as an offset value to be subtracted from the measured value. When the distance from the light projecting / receiving unit 31 to the reflecting surface 52 or the reflecting surface 53 is measured, the horizontal displacement amount of the landing sill 20 with respect to the car sill 10 is displayed on the display 32.

  For example, if the reference value L2 is 10 mm and the thickness t of the reflecting surfaces 52 and 53 is 2 mm, the offset value is 8 mm. FIG. 4A shows a case where the horizontal position of the car 100 is shifted from the reference position. At this time, the distance L from the laser distance meter 30 to the end face 20a of the landing threshold 20 is set to 12 mm. Then, the value displayed on the display 32 of the laser distance meter 30 is 4 mm obtained by subtracting the offset value 8 mm from 12 mm. The value “4” displayed on the display 32 notifies the operator that the distance L between the car sill 10 and the landing sill 20 is 4 mm larger than the reference value.

  In the landing position adjusting apparatus according to the second embodiment, the vertical displacement amount of the car 100 can be calculated based on the measurement value of the displacement amount of the horizontal position of the car 100. FIG. 4B shows a state in which the car 100 has moved up from the position of FIG. At this time, the laser light of the laser rangefinder 30 is irradiated to a position on the reflective surface 51 that is three steps above the reference surface C.

  Here, if the number of steps of the stepped surface formed on the reflecting surface 51 from the reference surface C to the reflecting surfaces 52 and 53 of the reflecting surface 51 is Z, the distance e from the reference surface C to the reflecting surfaces 52 and 53 is e. Is d × Z. Therefore, the amount of vertical displacement of the car 100 can be calculated by the equation “(measured value of laser rangefinder 30) − (offset value) − (horizontal displacement) − (d × Z)”. In this equation, since “(measured value of laser rangefinder 30) − (offset value)” is a display value of the display device 32, the positional deviation amount in the vertical direction of the car 100 is eventually “(display device 32). Display value) − (horizontal deviation) − (d × Z) ”.

  When the car 100 stops at the position shown in FIG. 4B, the distance L from the laser rangefinder 30 to the reflecting surface 51 is L2 (10 mm) + the amount of horizontal displacement (4 mm) −the thickness of the reflecting surface 52. (2 mm) +4 steps (4 mm) of the reflective surface 51 = 16 mm. At this time, the value displayed on the display 32 is 8 mm obtained by subtracting the offset value 8 mm.

Here, if d = h = 1 (mm) and Z = 7 (stage), “(display value of display 32) − (horizontal displacement) − (d × Z)” is 8-4. −7 = −3 (mm).
As a result, the vertical displacement amount −3 mm of the car 100 is calculated, and it is understood that the landing position of the car 100 needs to be corrected downward by 3 mm.

  Thus, according to the landing position adjusting apparatus of the second embodiment, by attaching the reflector 41 to the landing sill 20, the horizontal displacement amount of the car 100 is detected and the horizontal displacement amount. Based on the above, the vertical displacement amount of the car 100 can be calculated. Thus, the operator can simultaneously adjust the amount of positional deviation between the horizontal position of the landing sill 20 and the landing position of the car 100 based on the value displayed on the display 32.

  In the second embodiment, the worker calculates the amount of vertical displacement of the car 100 based on the amount of horizontal displacement of the car 100. However, the present invention is not limited to this. For example, the horizontal displacement amount of the car 100 is stored in a storage device of a control device (not shown), and based on the measured value of the laser distance meter 30 and the horizontal displacement amount stored in the storage device, The control device may be configured to calculate the amount of positional deviation in the vertical direction.

  In the second embodiment, the laser rangefinder 30 is attached to the lower part of the car sill 10 and the reflector 41 is attached to the lower part of the landing sill 20. However, the present invention is not limited to this. For example, the laser distance meter 30 may be attached to the lower part of the landing threshold 20 and the reflector 41 may be attached to the car threshold 10. In addition, an allowable range is appropriately set for the positional deviation amount with respect to the reference value of the distance between the end face 10a facing the hoistway in the car sill 10 and the end face 20a facing the hoistway in the landing sill 20. To do.

Embodiment 3 FIG.
FIG. 5 is a configuration diagram showing the car sill 10 and the landing sill 20 provided with the landing position adjusting apparatus according to the third embodiment of the present invention. As shown in FIG. 5, the landing position adjusting apparatus of the present invention is configured such that the laser distance meter 30 is attached to the car sill 10 via the attachment member 60, and the reflector 40 is attached via the attachment member 61. It is attached to. Other configurations are the same as those in the first embodiment.

  The mounting member 60 is a plate-like member formed along the shape of the car sill 10, and one end thereof is detachably engaged with a groove provided in the car sill 10. On the other hand, the attachment member 61 is a plate-like member formed along the shape of the landing threshold 20, and one end thereof is detachably engaged with a groove provided in the landing threshold 20. The laser distance meter 30 and the reflector 40 are fixed to the other end of the mounting member 60 and the other end of the mounting member 61 using screws or the like.

  According to such a landing position adjusting device, since the attachment member 61 is detachably engaged with the landing sill 20, one reflector 40 fixed to one attachment member 61 is attached to each floor. It can be used by being attached to and detached from the landing threshold 20 in order. Thereby, even when measuring the amount of displacement of the landing positions of a plurality of floors, the amount of displacement of the landing position of the car 100 on each floor is detected without preparing the reflectors 40 for the number of floors. Can do.

  Although the reflector 40 is used in the third embodiment, a reflector 41 may be used instead of the reflector 40 as shown in FIG. As shown in FIG. 6, the attachment member 62 of the reflector 41 is formed along the shape of the landing sill 20, and one end thereof is detachably engaged with a groove provided in the landing sill 20. To form. The reflector 41 is fixed to the other end of the mounting member 62 by using a fixing means such as welding. In this case, the offset value to be subtracted from the measured value of the laser distance meter 30 is “L2-2t” obtained by subtracting the thickness t of the reflecting surface 52 and the thickness t of the mounting member 62 from L2.

  In the third embodiment, the laser distance meter 30 is attached to the car sill 10 side and the reflector 40 is attached to the landing sill 20 side. However, the present invention is not limited to this. For example, the laser distance meter 30 may be attached to the landing sill 20 side, and the reflector 40 may be attached to the car sill 10 side.

  Next, a method for adjusting the landing position using the plate 70 and the landing position adjusting device of the present invention will be described. Here, the reflector 41 described in the second embodiment and FIG. 4 is used, and the car 100 is moved up from the first floor to the upper floor in order, and the horizontal position of the landing sill 20 on each floor A case where the landing position of the car 100 is adjusted will be described.

  FIG. 7 is a schematic diagram showing an elevator apparatus to which the landing position adjusting apparatus according to the second embodiment is attached. The elevator apparatus includes a car 100 that moves up and down the hoistway, a rope 80 that is fixed to the car 100 at one end side, a sheave 81 around which the rope 80 is wound, a weight 83 that is fixed at the other end side of the rope 80, A motor 82 for rotating the sheave 81 is provided, and the car 100 is suspended from a weight 83.

  The elevator apparatus is attached to the rotating shaft of the motor 82 and generates a pulse every time the rotating shaft makes one rotation, and a counting circuit 85 that counts pulses generated from the pulse generator 84, And a microcomputer 86.

  The car 100 is provided with an ascending position detector 71 and a descending position detector 72 for detecting the plate 70 fixed to the inner wall of the hoistway. Then, when the rising position detector 71 and the lowering position detector 72 detect the plate 70, they output an up signal 71s and a down signal 72s to the microcomputer 86, respectively.

  When the car 100 is moving upward, the microcomputer 86 adds the count value 85 s of the counting circuit 85 in accordance with the up signal 71 s output from the ascending position detector 71, so that the current car 100 The position and the current landing floor of the car 100 are calculated. In addition, when the car 100 is moving downward, the microcomputer 86 subtracts the count value of the counting circuit 85 in accordance with the down signal 72s output from the lowering position detector 72, thereby The current position and the current landing floor of the car 100 are calculated.

  Here, the control performed in the microcomputer 86 will be described with reference to FIG. 7 and 8, F1 and F2 are the positions of the landing thresholds 20 installed in the landings 200 on the respective floors. In FIG. 8, pattern (a) shows a running pattern during normal operation of the car 100, and pattern (b) shows a running pattern during adjustment operation of the car 100.

  FIG. 8C shows the output state of the up signal 71 s of the ascending position detector 71 and the down signal 72 s of the descending position detector 72. FIG. 8C shows a case where the length of the plate 70 is 500 mm and the distance between the ascending position detector 71 and the descending position detector 72 is 100 mm.

  In FIG. 8, the vehicle 100 starts traveling in the up direction from F1, and when the distance calculated based on the count value 85s reaches X1, the car 100 starts decelerating with F2 as a target. If the mounting position of the plate 70 is correct, F2 coincides with the position of the landing sill 20 on the destination floor, so that there can be no step between the car sill 10 and the landing sill 20 of the car 100. .

  Next, a procedure for adjusting the landing position of the car 100 will be described. When the landing position of the car 100 is adjusted, when the microcomputer 86 recognizes that the display 32 of the laser rangefinder 30 is turned on, the pattern (b) at the time of the adjustment operation in FIG. 8 is selected. When the pattern (b) is selected, the microcomputer 86 starts the traveling of the car 100 in the same manner as the pattern (a) during normal operation. Then, when the distance calculated based on the count value 85s reaches X2, the car 100 starts to decelerate with the target before point Y. Point Y is a position where the ascending position detector 71 detects the plate 70 and is a position 300 mm before the landing threshold 20 on the destination floor.

  The car 100 travels at a predetermined ultra-low speed after decelerating. When the ascending position detector 71 detects the Y point, the measurement of the movement distance is started. At the same time, measurement of the distance to the reflecting surface 53 of the reflector 41 by the laser distance meter 30 is started. Then, the amount of positional deviation of the horizontal position of the car 100 is displayed on the display 32, and the displayed numerical value is recorded. In the case where the display unit 32 is provided with a storage means, this positional deviation amount is stored.

  When the moving distance from the point Y reaches 300 mm, the microcomputer 86 determines that the car 100 has reached the point F2, and stops the car 100 by a brake. Thus, by making the car 100 run at a constant low speed from the point Y, it is possible to reduce the detection error of the plate 70 by the ascending position detector 71 and the free running distance of the car 100 when the brake is operated. .

  If the plate 70 is attached at the correct position, “0” is displayed on the display 32 when the car 100 stops. When the mounting position of the plate 70 is deviated from the normal position, a numerical value other than “0” is displayed on the display 32. At this time, the vertical displacement amount of the car 100 is calculated based on the numerical value displayed on the display 32 and the recorded horizontal displacement amount. Then, the mounting position of the plate 70 is adjusted up and down based on the calculated displacement amount. Thereby, the plate 70 can be attached to a regular position, and the landing position of the car 100 can be adjusted within the allowable range of the reference position.

  Thus, according to the landing position adjusting device of the present invention, with the landing position adjusting device operated, for example, the car 100 travels from the lowest floor to the highest floor, and finally returns to the lowest floor. By traveling in this manner, it is possible to easily obtain the displacement amount and displacement direction of the plates 70 on all floors and the displacement amount in the horizontal direction between the car 100 and the landing sill 20. Therefore, an operator gets on the car 100 and moves the car 100 while moving the car 100, and the positional deviation amount and the positional deviation direction of the plate 70 on each floor and the horizontal positional deviation amount of the car 100 and the landing sill 20. Based on the above, by adjusting the position of the plate 70 and the horizontal position of the landing threshold 20, the landing position of the car 100 can be adjusted in a short time.

  By such a landing position adjustment method, it is possible to detect a deviation amount of the interval between the landing sill 20 and the car sill 10 without the operator using a scale or the like, and the horizontal position of the landing sill 20 is detected. Can be adjusted. Further, by such a landing position adjustment method, the correction amount of the vertical displacement of the car sill 10 with respect to the landing sill 20 at the time of landing is detected without an operator using a scale or the like. be able to. Then, by adjusting the vertical mounting position of the plate 70 based on this correction amount, the vertical displacement of the car 100 with respect to the landing 200 at the time of landing can be within an allowable range. .

  Here, the case has been described in which the reflector 41 of the second embodiment is used and the car 100 is moved upward to adjust the position of the landing sill 20 and the car stop position on each floor. However, the present invention is not limited to this. Absent. For example, when only the car stop position is adjusted, the reflector 40 may be used, or the car 100 may be moved downward to adjust the car stop position on each floor. Furthermore, you may adjust by performing both a raise movement and a descent | fall movement. Here, the laser rangefinder 30 is attached to the car sill 10 side and the reflector 41 is attached to the landing sill 20 side, but this is not restrictive. For example, the laser distance meter 30 may be attached to the landing sill 20 side, and the reflector 41 may be attached to the car sill 10 side.

  10 car sill, 20 landing sill, 30 laser distance meter (distance measuring device), 31 light emitting / receiving unit, 32 display, 40-41 reflector, 50-51 reflective surface (first reflective surface), 52-53 reflective surface (Second reflecting surface), 61-62 mounting member, 70 plate, 71 ascending position detector, 72 descending position detector, 100 car, 200 landing.

Claims (7)

A distance measuring device attached to either the car threshold or the landing threshold;
A reflector attached to the other,
The distance measuring device has a light projecting / receiving unit,
The reflector has a first reflection surface that reflects the irradiation light of the light projecting / receiving unit to the light projecting / receiving unit,
The first reflecting surface has a plurality of surfaces formed in a step shape, each having a different distance from the light projecting and receiving unit,
A landing position adjusting device that detects a correction amount of the landing position based on a distance from the light projecting / receiving unit to the first reflecting surface at the landing position. The reflector has a second reflecting surface having a constant distance from the light projecting / receiving unit,
The landing position adjusting device according to claim 1, wherein a distance from the light projecting / receiving unit to each of the plurality of surfaces and a distance from the light projecting / receiving unit to the second reflecting surface are different from each other.   The landing position adjusting device according to claim 2, wherein the second reflecting surface is provided on at least one of an upper side and a lower side of the first reflecting surface. Based on the distance from the light projecting and receiving unit to the second reflecting surface,
The landing position adjusting device according to claim 2, wherein a horizontal correction amount of the landing sill is detected. At least one of the distance measuring device and the reflector is
The landing position adjusting device according to any one of claims 1 to 4, wherein the landing position adjusting device is detachably attached to either the car sill or the landing sill. A step of attaching a distance measuring device having a light projecting / receiving unit to one of the car sill and the landing sill;
On the other hand, a step of attaching a reflector having a reflecting surface provided with a plurality of surfaces formed in a step shape and having different distances from the light projecting and receiving unit,
A step of moving the car and detecting a plate provided in the hoistway by a position detector provided in the car;
Raising and stopping the car by a predetermined distance, and
A step of measuring a distance from the light projecting / receiving unit to the reflecting surface by the distance measuring device;
Detecting a correction amount of the landing position based on the measured distance;
And a step of adjusting the position of the plate based on the correction amount. A step of attaching a distance measuring device having a light projecting / receiving unit to one of the car sill and the landing sill;
On the other hand, the first reflection surface is formed in a step shape and provided with a plurality of surfaces with different distances from the light projecting / receiving unit, and provided on at least one of the upper and lower sides of the first reflecting surface, A step of attaching a reflector having a second reflecting surface having a constant distance from the part;
Moving the cage and measuring the distance from the light projecting / receiving unit to the second reflecting surface by the distance measuring device;
Adjusting the horizontal position of the landing sill based on the measured distance from the light projecting and receiving unit to the second reflecting surface;
A step of further moving the car and detecting a plate provided in the hoistway by a position detector provided in the car;
Raising and stopping the car by a predetermined distance, and
A step of measuring a distance from the light projecting / receiving unit to the first reflecting surface by the distance measuring device;
Calculating a correction amount of the landing position based on the measured distance;
And a step of adjusting the position of the plate based on the correction amount.

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