WO2023144921A1 - Elevator - Google Patents

Elevator Download PDF

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Publication number
WO2023144921A1
WO2023144921A1 PCT/JP2022/002872 JP2022002872W WO2023144921A1 WO 2023144921 A1 WO2023144921 A1 WO 2023144921A1 JP 2022002872 W JP2022002872 W JP 2022002872W WO 2023144921 A1 WO2023144921 A1 WO 2023144921A1
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WO
WIPO (PCT)
Prior art keywords
car
elevator
position detection
detection device
contact position
Prior art date
Application number
PCT/JP2022/002872
Other languages
French (fr)
Japanese (ja)
Inventor
泰裕 金山
祐輔 村田
勇来 齊藤
Original Assignee
株式会社日立製作所
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 株式会社日立製作所 filed Critical 株式会社日立製作所
Priority to PCT/JP2022/002872 priority Critical patent/WO2023144921A1/en
Publication of WO2023144921A1 publication Critical patent/WO2023144921A1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B3/00—Applications of devices for indicating or signalling operating conditions of elevators
    • B66B3/02—Position or depth indicators
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators

Definitions

  • the present invention relates to an elevator equipped with a position detection device in the car and landing.
  • Patent Document 1 As a conventional technique for detecting the position of a car in a hoistway, the technique described in Patent Document 1 is known.
  • the detector In this prior art, the detector is installed under the car and the plate to be detected is attached to the threshold of the landing.
  • the present invention provides an elevator capable of facilitating maintenance or inspection of the position detection devices provided in the car and landing.
  • an elevator according to the present invention is provided with a non-contact position detection device for detecting the position of the car, wherein the non-contact position detection device is provided in the car. and a fixed part provided at a second threshold provided at the landing and facing the moving part when the car lands on the floor.
  • the side plate is provided with an inspection opening for inspecting the non-contact position detecting device, and the inspection opening has an opening provided in the front side plate adjacent to the non-contact position detecting device.
  • FIG. 1 is a hoistway height direction configuration diagram showing a schematic configuration of an elevator according to an embodiment
  • FIG. It is a top view at the time of seeing the elevator of an Example from the upper direction of a car.
  • 1 is a front view of a car and an electric safety device, showing an example of a schematic configuration of an electric safety device according to an embodiment
  • FIG. Fig. 10 is a front view of the car and the electric safety device, showing another example of the schematic configuration of the electric safety device in the embodiment
  • It is a schematic diagram which shows an example of the image of the exposed surface of guide rail 2A (FIG. 2) for cars. It is a side view of a car and a landing, showing the positional relationship between the non-contact position detection device and the inspection door in the embodiment.
  • FIG. 7 is an arrow view of the car as seen in the A direction in FIG. 6 ;
  • FIG. 7 is a view in the direction of an arrow when the landing is seen in the B direction in FIG. 6 ;
  • FIG. 4 is a partial plan view showing a first configuration example of an inspection door;
  • FIG. 9 is a partial plan view showing a second configuration example of the inspection door;
  • FIG. 11 is a partial plan view showing a third configuration example of an inspection door;
  • FIG. 11 is a partial plan view showing a fourth configuration example of an inspection door;
  • FIG. 1 is a height direction configuration diagram in a hoistway showing a schematic configuration of an elevator that is an embodiment of the present invention.
  • FIG. 2 is a plan view of the elevator of this embodiment viewed from above the car in the hoistway.
  • a hoist 3 supported by a machine beam 3B is installed near the top of the hoistway 1.
  • Car 4 and counterweight 50 are suspended within hoistway 1 by main ropes 40 .
  • One end of the main rope 40 is fixed to the machine beam 3B, and furthermore, the main rope 40 is provided on the pulley 50A provided on the counterweight 50, the sheave 3A of the hoisting machine 3, and the lower part of the car 4. It is wound around the under-car pulley 4B (FIG. 2) and the under-car pulley 4A in this order.
  • the other end of the main rope 40 is fixed near the top of the hoistway 1 .
  • a control panel 30 is installed near the top of the hoistway 1 to house a drive device (for example, an inverter device) that drives the hoisting machine 3 and a control device that controls the operation of the car 4 in a housing.
  • a drive device for example, an inverter device
  • the vicinity of the top is the area between the top floor of the hoistway 1 and the top of the hoistway, that is, the so-called overhead.
  • the non-contact position detection device 200 for detecting the position of the car 4 is a moving part provided adjacent to the floor surface of the car floor at the front lower part of the car ( "200A") and a fixed portion (“200B” in FIG. 2) fixed adjacent to the floor surface of the landing in the hoistway 1.
  • the fixed part functions as a floor locator.
  • the control device in the control panel 30 responds to a position detection signal from the non-contact position detection device 200 and a rotation detection signal from a rotation detector (for example, a rotary encoder) (not shown) that detects the rotation of the hoisting machine 3. to control the speed of the car 4 and to land the car 4 on each floor.
  • a rotation detector for example, a rotary encoder
  • the car 4 is provided with an electric safety device 100.
  • the electric emergency stop system 100 when the car 4 is in an overspeed state, the brake is pulled up by the electric operator as will be described later (FIGS. 3 and 4).
  • This electric actuator is operated by a ropeless governor system that does not use a governor rope.
  • This ropeless governor system has a non-contact speed detector 60 .
  • a pit ladder 300 which is dedicated maintenance equipment, is permanently installed near the bottom of the hoistway 1, that is, in the pit. Maintenance technicians use the pit ladder 300 to descend into the pit when working in the pit.
  • the pit ladder 300 is permanently installed in the space adjacent to the landing on the lowest floor for the convenience of maintenance engineers.
  • the non-contact position detection device 200 and the electric emergency stop device 100 operated by the ropeless governor system prevent the side surface of the car 4 and the hoistway wall surface from facing the car door in front.
  • tower equipment installed along the height direction of the hoistway such as shields for position measurement and rope governor systems, can be eliminated. As a result, it is possible to secure a space in the hoistway 1 for permanent installation of dedicated maintenance equipment, which is a pit ladder in this embodiment.
  • the equipment in the hoistway is arranged in the space (SP1 to SP5) between the car 4 and the wall surface of the hoistway (see the two-dot chain line in Fig. 2).
  • the space SP1 and the space SP2 are defined by one of the left and right side surfaces of the car 4 in the depth direction, that is, the left side surface facing the car door 80 in this embodiment, and the one side surface. is a space between the hoistway wall surface 1A that is adjacent to and parallel to the hoistway wall surface 1A.
  • the space SP1 and the space SP2 are located on the car door 80 side and the opposite side of the car guide rail 2A, respectively, when viewed from above the hoistway.
  • the space SP3 and the space SP4 are defined by the other side of the left and right sides in the depth direction of the car 4, that is, the right side toward the car door 80 in this embodiment, and the other side. is a space between the hoistway wall surface 1B adjacent to and parallel to the .
  • the space SP4 and the space SP3 are located on the car door 80 side and the opposite side of the car guide rail 2B, respectively, when viewed from above the hoistway.
  • the space SP5 is the space between the back surface of the car 4 facing the car door 80 and the hoistway wall surface 1C adjacent to and parallel to this back surface when viewed from above the hoistway.
  • the hoist 3 and the counterweight 50 are located within the space SP2.
  • a thin hoist is applied as the hoist 3 in this embodiment.
  • the counterweight 50 is positioned below the hoisting machine 3 in the space SP2.
  • the hoisting machine 3 and the counterweight 50 are arranged so as to overlap each other in the space SP2 when viewed from above the hoistway.
  • one end of the main rope 40 (Fig. 1) is fixed to the machine beam 3B (Fig. 1).
  • the main rope 40 (Fig. 1) is wound around the pulley 50A (Fig. 1), the sheave 3A, and the under-car pulley 4B in the space SP2, passes through the lower part of the car 4, and is wound around the under-car pulley 4A. be done.
  • the main rope 40 wound around the under-car pulley 4A extends upward within the space SP3.
  • the other end of the upwardly extending main rope 40 is fixed to the hoistway wall surface 1B, the car guide rail 2B, or the rail bracket 20 near the top of the hoistway 1 in the space SP3. It is fixed to a member (not shown).
  • the control panel 30 is arranged within the space SP1.
  • the control panel 30 is fixed to the hoistway wall surface 1 ⁇ /b>A near the top of the hoistway 1 . This reduces the wiring length between the hoisting machine 3 and the control panel 30 .
  • the control panel 30 is thinned. Therefore, the control panel 30 can be arranged in the narrow space SP1.
  • both the control panel 30 and the hoisting machine 3 can be arranged near the top of the hoistway 1, when a maintenance engineer performs maintenance work on the car 4, the car 4 can be hoisted without moving it. Maintenance work for the machine 3 and each control panel 30 can be performed. Therefore, the efficiency of maintenance work is improved.
  • the car guide rails 2A and 2B are supported by rail brackets 20 fixed to the hoistway wall surfaces 1A and 1B, respectively.
  • the counterweight guide rails 2C and 2D are supported by rail brackets 20 fixed to the hoistway wall surfaces 1A and 1C, respectively.
  • the moving part 200A of the non-contact position detection device 200 is provided below the threshold for the car door 80. Moreover, the fixed part 200B of the non-contact position detection device 200 is provided under the threshold for the hall door (not shown). Therefore, the non-contact position detection device 200 composed of the moving part 200A and the fixed part 200B does not affect the sizes of the spaces SP1 to SP5.
  • the moving part 200A and the fixed part 200 of the non-contact position detection device 200 are located on one of the left and right sides of the entrance (w) of the hoistway and the car 4 where the car door 80 and the landing door (not shown) open and close. To position. In this embodiment, it is located on the left side of the entrance (w) as viewed from the landing.
  • an opening serving as an inspection port for the non-contact position detection device 200 is provided in a region of the front side plate of the car 4 facing the non-contact position detection device 200. Part a is provided.
  • a non-contact speed detector 60 and a safety control device 70 for inputting the signal output by the non-contact speed detector 60 are provided above the car 4 .
  • the non-contact speed detector 60 and the safety controller 70 constitute a ropeless governor system.
  • the safety control device 70 measures the ascending/descending speed of the car 4 based on the surface image of the car guide rail 2A acquired by the non-contact speed detector 60 (image sensor).
  • a first overspeed for example, a speed that does not exceed 1.3 times the rated speed
  • the safety control device 70 determines that the measured lifting speed has reached a first overspeed (for example, a speed that does not exceed 1.3 times the rated speed)
  • it controls the power supply of the hoist and this hoist. It outputs a command signal to cut off the power supply of the control device.
  • the safety control device 70 determines that the measured descent speed has reached a second overspeed (for example, a speed not exceeding 1.4 times the rated speed)
  • the Output command signal when the electric emergency stop device 100 is activated, each of the car guide rails 2A and 2B is clamped by a pair of brakes 151, whereby the car 4 is brought to an emergency stop.
  • the non-contact type position detection device 200 constituted by the moving part 200A and the fixed part 200B and the electric emergency power system operated by the ropeless governor system having the non-contact speed detector 60
  • the stop device 100 equipment in the tower can be reduced.
  • a tail cord support member 601 that supports the tail cord 600 is fixed to the hoistway wall surface 1B in the space SP3.
  • a pit ladder 300 is permanently installed in the vicinity of the bottom in the space SP4.
  • the hoisting machine 3, the counterweight 50, and the control panel 30 are provided in one (left) space (SP1 and SP2) of the spaces on the left and right sides facing the car door 80. This leaves room for reduction across the other (right) space (SP3 and SP4). Therefore, the area of the hoistway 1 can be reliably reduced.
  • the pit ladder 300 is permanently installed in the space SP4, which is adjacent to the landing and closer to the landing than the space SP3, of the spaces SP3 and SP4. As a result, convenience for maintenance workers is improved, and efficiency of maintenance work in the pit is improved.
  • FIG. 3 a configuration example of the electric safety device 100 will be described using FIGS. 3 and 4.
  • FIG. 3 a configuration example of the electric safety device 100 will be described using FIGS. 3 and 4.
  • FIG. 3 is a front view of the car 4 and the electric safety device 100, showing an example of the schematic configuration of the electric safety device 100 in this embodiment.
  • the electric operator 103 is an electromagnetic operator in this embodiment, and is arranged above the car 4 .
  • the electric operator 103 has a movable piece or a movable rod driven by, for example, a solenoid or an electromagnet.
  • the electric operator 103 operates in response to a command signal from the safety control device 70 (FIG. 2) in the ropeless governor system when the car 4 reaches a predetermined overspeed condition (the above-described "second overspeed”). Then, the link mechanism 104 is displaced to bring the brake shoe 151 into the braking state.
  • FIG. 3 illustration of a guide member that guides the brake shoe 151 and an elastic body (such as a spring) that presses the brake shoe 151 and the guide portion is omitted.
  • the link mechanism 104 has a link shaft 140 driven by the electric manipulator 103 and a lift rod 141 interlockably linked to the link shaft 140 , and the lift rod 141 is lifted according to the operation of the electric manipulator 103 . .
  • the brake 151 attached to the lifting rod 141 is pulled up, the brake 151 clamps the car guide rail ("2A, 2B" in FIG. 2).
  • FIG. 4 is a front view of the car 4 and the electric safety device 100, showing another example of the schematic configuration of the electric safety device 100 in this embodiment.
  • the electric operator 103 is arranged below the car 4 .
  • the configuration and operation of the electric safety device 100 are the same as in the example of FIG.
  • FIG. 5 is a schematic diagram showing an example of an image of the exposed surface of the car guide rail 2A (FIG. 2).
  • the image I(t) at time t and the image I(t+ ⁇ t) at time t+ ⁇ t ( ⁇ t: frame period) obtained by the non-contact speed detector 60 (image sensor) are show. Both images are images of the exposed surface of the steel material that constitutes the guide rail 2A, and show the pattern of the luminance distribution showing the unevenness distribution on the exposed surface of the steel material. Note that the car 4 is lowered from time t to time t+ ⁇ t.
  • an image shift d occurs between the image I(t) and the image I(t+ ⁇ t), as shown in FIG.
  • an image shift d occurs in the upward direction in the image frame.
  • This image shift d is calculated by comparing the image I(t) and the image I(t+ ⁇ t) using the image correlation method in this embodiment.
  • the image I(t) or a part thereof is moved in the image frame by a predetermined amount along the longitudinal direction of the guide rail 2A, and the image I(t) moved and the image I(t+ ⁇ t) A correlation function value is calculated.
  • the total amount of movement of the image I(t) when the correlation function value is the maximum value is taken as the image shift d.
  • the direction in which the image shifts in the image frame indicates the moving direction (upward, downward) of the car 4 . Therefore, if the sign of the image shift is set according to the direction of image shift, for example, if the downward direction (upward direction) is positive and the upward direction (downward direction) is negative, the image shift d is calculated every ⁇ t. By calculating and adding to the car position at startup, the current car position can be measured.
  • the car guide rail is surface-finished by polishing or the like in order to make the surface uneven.
  • the non-contact speed detector 60 image sensor preferably has a light source for illuminating the surface of the car guide rail 2A. As a result, the car position measurement accuracy is improved.
  • the non-contact position detection device 200 provided adjacent to the car door sill and the hall door sill and the electric emergency power system operated by the ropeless governor system comprising the non-contact speed detector 60 are provided.
  • the stop device 100 reduces tower equipment located in the hoistway. Further, in the hoistway 1, one space (in FIG. 2, The hoisting machine 3 and the counterweight 50 are arranged in the space SP2), and the control panel is arranged in another space (the space SP1 in FIG. 2). As a result, the remaining space (spaces SP3 and SP4 in FIG. 2) has room to be reduced, and it becomes possible to permanently install equipment dedicated to maintenance (pit ladder 300 in FIG. 2).
  • FIG. 6 is a side view of the car and landing, showing the positional relationship between the non-contact position detection devices (200A, 200B) and the inspection door (a) in this embodiment.
  • the car 4 has landed and stopped.
  • FIG. 7 is an arrow view of the car as seen in the A direction in FIG.
  • FIG. 8 is the arrow view which looked at the boarding point in the B direction in FIG.
  • the moving part 200A of the non-contact position detection device 200 is fixed via a support part 201 to the lower part of the threshold 81 for the car door 80 provided in the car 4 .
  • the fixed portion 200B of the non-contact position detection device 200 is made of a plate-like member and is fixed to the threshold 91 for the landing door 90 provided in the landing 400 with the plane of the plate facing the car 4 .
  • a plate-shaped member that constitutes the fixed part 200B hangs vertically downward from the landing floor. When the car 4 lands on the floor, the moving part 200A and the fixed part 200B face each other.
  • the moving part 200A of the non-contact position detection device 200 moves the edge of the threshold 81 at one of the left and right sides (the left side in FIG. 7) of the apron 43 that is fixed to the threshold 81 and hangs vertically downward. located near the part.
  • an opening a adjacent to the floor surface of the car floor 41 (FIG. 6) is provided in the lower part of the front side plate 42 forming the car chamber of the car 4.
  • the opening a is located below the operation panel 500 .
  • the non-contact position detection device 200 (200A, 200B) can be seen from inside the car 4, and maintenance work such as adjustment of the position of the moving part 200A can be performed from inside the car 4. become. Therefore, maintenance and inspection of the non-contact position detection device 200 are facilitated.
  • support portion 201 of moving portion 200A has a mechanism for manually adjusting the position of moving portion 200A in one or more of the height direction, left-right direction, and front-rear direction in FIG. Thereby, the maintenance work of the non-contact position detection device 200 can be easily performed from inside the car using the opening a.
  • the fixing portion 200B of the non-contact position detecting device 200 is fixed to the threshold 91 and is attached to one of the right and left sides of the toe guard 406 that hangs vertically downward (the right side in FIG. 8). It is provided at a position facing the moving part 200A in the vicinity of the part.
  • the apron 43 (Fig. 7) and the toe guard (Fig. 8) are formed between the floor of the car floor and the floor of the landing at the doorway (w) when the car 4 does not land normally. It consists of a plate-like member that closes the gap.
  • the car door 80 and the landing door 90 are of a double-opening type.
  • the landing door 90 is suspended on a support (not shown) of the hanger case 407 so as to be able to be opened and closed.
  • the car door 80 and the landing door 90 are engaged, and both the car door 80 and the landing door 90 are opened and closed by the door driving device of the car 4 .
  • any of a photoelectric sensor (light emitting/receiving unit), an inductive displacement sensor or proximity sensor, or a capacitive displacement sensor or proximity sensor is applied as the non-contact position sensor that constitutes the moving part 200A.
  • a photoelectric sensor light receiving/emitting part
  • a reflector is applied as the fixed part 200B.
  • a magnetic plate is applied as the fixed part 200B.
  • a conductive plate is applied as the fixed part 200B.
  • a distance D between the threshold 81 and the threshold 91 shown in FIG. 6 is, for example, about 10 to 30 mm. Therefore, the non-contact position sensor that constitutes the moving part 200A can detect the plate to be detected at least at this distance.
  • the fixed part 200B is fixed to the threshold 91 of the landing of each floor and serves as a plate to be detected that indicates the floor position. Therefore, maintenance work such as position adjustment for the fixed portion 200B can be omitted after the elevator is fixed during installation.
  • the opening a serving as an inspection port is not limited to the lower portion of the operation panel 500, and may be provided in the lower portion of the front side plate that does not have an operation panel as long as it is adjacent to the non-contact position detection device 200.
  • various wiring routes connecting the signal wiring route from the non-contact position sensor constituting the moving part 200A of the non-contact position detecting device 200 to the operation panel 500 can be shared with Therefore, the wiring length of the signal line from the non-contact position sensor can be reduced.
  • FIG. 9 to 12 are partial plan views of the elevator of this embodiment when viewed from above the car in the hoistway, showing an example of the configuration of the inspection door of the non-contact position detection device 200.
  • FIG. Each figure shows the vicinity of the opening a in FIG.
  • FIG. 9 is a partial plan view showing a first configuration example of an inspection door.
  • the front side plate 42 of the car is provided with a lid portion 301 that closes the opening portion a.
  • the lid portion 301 is provided on the front side plate 42 via a hinge or the like so that it can be opened and closed inside the car.
  • the opening and closing direction of the lid portion 301 is not limited to the horizontal direction as shown in the drawing, and may be the vertical direction (for example, the front side for maintenance engineers).
  • the lid 301 has a lock that is opened and closed by a key carried by a maintenance engineer.
  • the lid 301 may be opened using the key inserted into the lock at the time of unlocking as a handle.
  • the lid part 301 may be configured to be slidable and openable.
  • the maintenance engineer uses the inspection door to perform maintenance or inspection work on the non-contact position detection device 200 with the car 4 stopped and the car door 80 closed. Therefore, in order to prevent the car 4 and the car door 80 from operating when the cover 301 is opened, it is preferable to provide an interlock switch at the inspection door.
  • Equipment used during maintenance and emergencies (for example, a control panel for maintenance operation) is often installed on the side plate where the operation panel is installed, and the equipment is normally installed so that it is not exposed in the car.
  • a lid is provided to cover the Therefore, when the inspection door is provided with a lid portion that can be opened and closed from inside the car, as shown in FIG. It is possible to configure an inspection port with little sense of incongruity.
  • FIG. 10 is a partial plan view showing a second configuration example of the inspection door.
  • a frame body 302 surrounding the opening a of the front side plate 42 is provided outside the car 4 .
  • the depth dimension of the frame 302 is set so that the frame 302 and the car door 80 do not interfere with each other when the car door 80 is opened and closed.
  • the frame 302 including the lid 301 may be attached to the opening a.
  • a so-called box having a cover 301 and opening on the hoistway side is attached to the opening a.
  • the frame 302 functions as a protector to prevent maintenance engineers from touching the equipment and wiring around the opening a. Also, the frame 302 can be used as a permanent place for tools used for maintenance or inspection of the non-contact position detection device 200 . In addition, the space between the vertical side surface of the frame 302 and the front side plate 42 is used as one of wiring paths for signal lines, etc. from the non-contact position sensor that constitutes the moving part 200A of the non-contact position detection device 200. can be part of
  • FIG. 11 is a partial plan view showing a third configuration example of the inspection door.
  • a lid portion 301A that is normally closed by being fixed to the front side plate 42 with screws or the like is provided. During maintenance or inspection of the non-contact position detection device 200, the lid portion 301A is opened by removing it from the front side plate 42 using a tool. That is, the lid portion 301 is detachably provided.
  • a frame 302 (indicated by a two-dot chain line in FIG. 11) may be provided as in the second configuration example (FIG. 10). Note that the frame 302 having the lid 301A may be attached to the opening a. In this case, a so-called box having a cover 301A and opening on the hoistway side is attached to the opening a. Normally, the lid portion 301A is closed by being fixed to the frame 302 with screws or the like.
  • FIG. 12 is a partial plan view showing a fourth configuration example of the inspection door.
  • the configuration of the inspection door is the same as in the first configuration example (FIG. 9), but unlike the first configuration example, the inspection door constitutes the moving part 200A of the non-contact position detection device 200.
  • a non-contact position sensor is provided within the frame 302 .
  • the fixed part 200B of the non-contact position detection device 200 is positioned on the threshold 91 for the hall door 90.
  • a plate to be detected that constitutes the fixed portion 200B is fixed to a threshold 91 for the landing door 90 at a position facing the moving portion 200A, and is fixed to the fixed portion 200B (detected plate) shown in FIGS. detection plate), it extends vertically upward from the landing floor.
  • the moving part 200A and the fixed part 200B which constitute the non-contact position detection device 200, are located in the vicinity of the threshold 81 for the car door 80 in the car 4 and at the landing, respectively. They are provided so as to face each other. Furthermore, the front side plate 42 of the car 4 is provided with an inspection opening for inspecting the non-contact position detection device 200 .
  • This inspection door has an opening a provided in the front side plate 42 adjacent to the non-contact position detection device 200 .
  • the maintenance engineer can perform maintenance or inspection work on the position detection device 200 while staying inside the car 4 . Therefore, maintenance or inspection of the non-contact position detection device 200 can be facilitated.
  • the present invention is not limited to the above-described examples, and includes various modifications.
  • the above-described embodiments have been described in detail in order to explain the present invention in an easy-to-understand manner, and are not necessarily limited to those having all the described configurations.
  • part of the configuration of the embodiment can be deleted, added to another configuration, or replaced with another configuration.
  • an elevator may have a machine room where a control panel and a hoist are installed.

Abstract

Disclosed is an elevator in which it is possible to facilitate maintenance or inspection of position detection devices provided to an elevator car and to a landing. This elevator comprises a contactless position detection device (200) for detecting the position of an elevator car (4). The contactless position detection device has a moving unit (200A) provided within the elevator car at a location near a first sill (81) provided to the elevator car, and a fixing part (200B) that is provided to a second sill (91) provided to a landing and that faces the moving unit when the elevator car lands. An inspection opening for allowing inspection of the contactless position detection device is provided in a front-side plate (42) of the elevator car. The inspection opening has an opening section (a) that is provided in the front-side plate and that is adjacent to the contactless position detection device.

Description

エレベーターelevator
　本発明は、乗りかごおよび乗場に位置検出装置を備えるエレベーターに関する。 The present invention relates to an elevator equipped with a position detection device in the car and landing.
　昇降路内における乗りかごの位置を検出する従来技術として、特許文献１に記載される技術が知られている。本従来技術では、検出器が乗りかごの下に設置されるとともに、被検出板が乗場の敷居に取り付けられる。 As a conventional technique for detecting the position of a car in a hoistway, the technique described in Patent Document 1 is known. In this prior art, the detector is installed under the car and the plate to be detected is attached to the threshold of the landing.
特開２０１０－６５６２号公報JP-A-2010-6562
　上記従来技術では、検出器および被検出板からなる位置検出装置の保守または点検が、難しくなったり、繁雑になったりする。 With the above conventional technology, maintenance or inspection of the position detection device consisting of the detector and the plate to be detected becomes difficult and complicated.
　そこで、本発明は、乗りかごおよび乗場に設けられる位置検出装置の保守または点検を容易化することができるエレベーターを提供する。 Therefore, the present invention provides an elevator capable of facilitating maintenance or inspection of the position detection devices provided in the car and landing.
　上記課題を解決するために、本発明によるエレベーターは、乗りかごの位置を検出する非接触型位置検出装置を備えるものであって、非接触型位置検出装置は、乗りかごにおいて、乗りかごに設けられる第１の敷居の近傍に設けられる移動部と、乗場に設けられる第２の敷居に設けられ、乗りかごの着床時に移動部に対向する固定部と、を有し、記乗りかごの前側板には、非接触型位置検出装置を点検するための点検口が設けられ、点検口は、非接触型位置検出装置に隣接して前側板に設けられる開口部を有する。 In order to solve the above problems, an elevator according to the present invention is provided with a non-contact position detection device for detecting the position of the car, wherein the non-contact position detection device is provided in the car. and a fixed part provided at a second threshold provided at the landing and facing the moving part when the car lands on the floor. The side plate is provided with an inspection opening for inspecting the non-contact position detecting device, and the inspection opening has an opening provided in the front side plate adjacent to the non-contact position detecting device.
　本発明によれば、位置検出装置の保守または点検を容易化することができる。 According to the present invention, maintenance or inspection of the position detection device can be facilitated.
　上記した以外の課題、構成および効果は、以下の実施形態の説明により明らかにされる。 Problems, configurations, and effects other than those described above will be clarified by the following description of the embodiments.
一実施例であるエレベーターの概略構成を示す昇降路内高さ方向構成図である。1 is a hoistway height direction configuration diagram showing a schematic configuration of an elevator according to an embodiment; FIG. 実施例のエレベーターを乗りかごの上方から見た場合の平面図である。It is a top view at the time of seeing the elevator of an Example from the upper direction of a car. 実施例における電動非常止め装置の概略的構成の一例を示す、乗りかごおよび電動非常止め装置の正面図である。1 is a front view of a car and an electric safety device, showing an example of a schematic configuration of an electric safety device according to an embodiment; FIG. 実施例における電動非常止め装置の概略的構成の他の例を示す、乗りかごおよび電動非常止め装置の正面図である。Fig. 10 is a front view of the car and the electric safety device, showing another example of the schematic configuration of the electric safety device in the embodiment; 乗りかご用ガイドレール２Ａ（図２）の露出表面の画像の一例を示す模式図である。It is a schematic diagram which shows an example of the image of the exposed surface of guide rail 2A (FIG. 2) for cars. 実施例における非接触型位置検出装置と点検口の位置関係を示す、乗りかごおよび乗場の側面図である。It is a side view of a car and a landing, showing the positional relationship between the non-contact position detection device and the inspection door in the embodiment. 図６におけるＡ方向に乗りかごを見た矢視図である。FIG. 7 is an arrow view of the car as seen in the A direction in FIG. 6 ; 図６におけるＢ方向に乗場を見た矢視図である。FIG. 7 is a view in the direction of an arrow when the landing is seen in the B direction in FIG. 6 ; 点検口の第１の構成例を示す部分平面図である。FIG. 4 is a partial plan view showing a first configuration example of an inspection door; 点検口の第２の構成例を示す部分平面図である。FIG. 9 is a partial plan view showing a second configuration example of the inspection door; 点検口の第３の構成例を示す部分平面図である。FIG. 11 is a partial plan view showing a third configuration example of an inspection door; 点検口の第４の構成例を示す部分平面図である。FIG. 11 is a partial plan view showing a fourth configuration example of an inspection door;
　以下、本発明の実施形態について、下記の実施例により、図面を用いながら説明する。各図において、参照番号が同一のものは同一の構成要件あるいは類似の機能を備えた構成要件を示している。 Hereinafter, embodiments of the present invention will be described with reference to the following examples using the drawings. In each figure, the same reference numbers denote the same components or components with similar functions.
　図１は、本発明の一実施例であるエレベーターの概略構成を示す昇降路内高さ方向構成図である。また、図２は、本実施例のエレベーターを昇降路内において乗りかごの上方から見た場合の平面図である。 　Fig. 1 is a height direction configuration diagram in a hoistway showing a schematic configuration of an elevator that is an embodiment of the present invention. FIG. 2 is a plan view of the elevator of this embodiment viewed from above the car in the hoistway.
　図１に示すように、本実施例のエレベーターにおいて、昇降路１の頂部近傍にはマシンビーム３Ｂに支持される巻上機３が設置されている。乗りかご４および釣合おもり５０は、主ロープ４０によって、昇降路１内に吊られる。主ロープ４０は、その両端部の内の一方端部がマシンビーム３Ｂに固定され、さらに、釣合おもり５０に設けられるプーリー５０Ａ、巻上機３のシーブ３Ａ、乗りかご４の下部に設けられるかご下プーリー４Ｂ（図２）およびかご下プーリー４Ａに、順に巻き掛けられる。図示しないが、主ロープ４０の他方端部は、昇降路１の頂部近傍に固定される。 As shown in FIG. 1, in the elevator of this embodiment, a hoist 3 supported by a machine beam 3B is installed near the top of the hoistway 1. Car 4 and counterweight 50 are suspended within hoistway 1 by main ropes 40 . One end of the main rope 40 is fixed to the machine beam 3B, and furthermore, the main rope 40 is provided on the pulley 50A provided on the counterweight 50, the sheave 3A of the hoisting machine 3, and the lower part of the car 4. It is wound around the under-car pulley 4B (FIG. 2) and the under-car pulley 4A in this order. Although not shown, the other end of the main rope 40 is fixed near the top of the hoistway 1 .
　巻上機３を駆動する駆動装置（例えば、インバータ装置）および乗りかご４の運転を制御する制御装置を筐体内に格納する制御盤３０が昇降路１の頂部近傍に設置される。 A control panel 30 is installed near the top of the hoistway 1 to house a drive device (for example, an inverter device) that drives the hoisting machine 3 and a control device that controls the operation of the car 4 in a housing.
　なお、本実施例において、頂部近傍は、昇降路１における、最上階床面と昇降路頂部との間の領域、すなわち、いわゆるオーバーヘッドである。 In this embodiment, the vicinity of the top is the area between the top floor of the hoistway 1 and the top of the hoistway, that is, the so-called overhead.
　本実施例のエレベーター装置において乗りかご４の位置を検出する非接触型位置検出装置２００は、乗りかごの前方下部において、かご床部の床面に隣接して設けられる移動部（図２中の「２００Ａ」）と、昇降路１内において乗場床面に隣接して固定される固定部（図２中の「２００Ｂ」）とから構成される。固定部は、階床位置設定器として機能する。 In the elevator system of this embodiment, the non-contact position detection device 200 for detecting the position of the car 4 is a moving part provided adjacent to the floor surface of the car floor at the front lower part of the car ( "200A") and a fixed portion ("200B" in FIG. 2) fixed adjacent to the floor surface of the landing in the hoistway 1. The fixed part functions as a floor locator.
　制御盤３０における制御装置は、非接触型位置検出装置２００からの位置検出信号と、巻上機３の回転を検出する図示しない回転検出器（例えば、ロータリーエンコーダ）からの回転検出信号とに応じて、乗りかご４の速度を制御したり、乗りかご４を各階床に着床させたりする。 The control device in the control panel 30 responds to a position detection signal from the non-contact position detection device 200 and a rotation detection signal from a rotation detector (for example, a rotary encoder) (not shown) that detects the rotation of the hoisting machine 3. to control the speed of the car 4 and to land the car 4 on each floor.
　乗りかご４には、電動非常止め装置１００が設けられる。電動非常止め装置１００においては、乗りかご４が過速状態に陥るとき、後述するように（図３および図４）、制動子が電動操作器によって引き上げられる。この電動操作器は、ガバナロープを用いないロープレスガバナシステムによって作動される。このロープレスガバナシステムは、非接触型速度検出器６０を有している。 The car 4 is provided with an electric safety device 100. In the electric emergency stop system 100, when the car 4 is in an overspeed state, the brake is pulled up by the electric operator as will be described later (FIGS. 3 and 4). This electric actuator is operated by a ropeless governor system that does not use a governor rope. This ropeless governor system has a non-contact speed detector 60 .
　昇降路１の底部近傍すなわちピット内には、保守専用機器であるピット梯子３００が常設されている。保守技術者は、ピット内で作業する時、ピット梯子３００を利用して、ピットに降りる。なお、本実施例において、ピット梯子３００は、保守技術者の利便性のために、最下階の乗場に隣接する空間内に常設される。本実施例においては、前述の非接触型位置検出装置２００およびロープレスガバナシステムによって作動される電動非常止め装置１００により、かごドアを前面とする場合における乗りかご４の側面と昇降路壁面との間の空間において、位置測定用の遮蔽板やロープ式ガバナシステムのように、昇降路の高さ方向に沿って設けられる塔内機器を削減できる。これにより、昇降路１内に、保守専用機器、本実施例ではピット梯子を常設する空間を確保することができる。 A pit ladder 300, which is dedicated maintenance equipment, is permanently installed near the bottom of the hoistway 1, that is, in the pit. Maintenance technicians use the pit ladder 300 to descend into the pit when working in the pit. In this embodiment, the pit ladder 300 is permanently installed in the space adjacent to the landing on the lowest floor for the convenience of maintenance engineers. In this embodiment, the non-contact position detection device 200 and the electric emergency stop device 100 operated by the ropeless governor system prevent the side surface of the car 4 and the hoistway wall surface from facing the car door in front. In the space between, tower equipment installed along the height direction of the hoistway, such as shields for position measurement and rope governor systems, can be eliminated. As a result, it is possible to secure a space in the hoistway 1 for permanent installation of dedicated maintenance equipment, which is a pit ladder in this embodiment.
　図２に示すように、昇降路内の機器は、乗りかご４と昇降路壁面との間の空間（ＳＰ１～ＳＰ５）内に配置される（図２中の二点鎖線参照）。 As shown in Fig. 2, the equipment in the hoistway is arranged in the space (SP1 to SP5) between the car 4 and the wall surface of the hoistway (see the two-dot chain line in Fig. 2).
　空間ＳＰ１および空間ＳＰ２は、昇降路上方から見て、乗りかご４における奥行方向の左右両側面の内の一方側面、すなわち、本実施例ではかごドア８０に向かって左側の側面と、この一方側面に隣接しかつ平行な昇降路壁面１Ａとの間の空間である。また、空間ＳＰ１および空間ＳＰ２は、昇降路上方から見て、それぞれ、乗りかご用ガイドレール２Ａのかごドア８０側およびその反対側に位置する。 When viewed from above the hoistway, the space SP1 and the space SP2 are defined by one of the left and right side surfaces of the car 4 in the depth direction, that is, the left side surface facing the car door 80 in this embodiment, and the one side surface. is a space between the hoistway wall surface 1A that is adjacent to and parallel to the hoistway wall surface 1A. The space SP1 and the space SP2 are located on the car door 80 side and the opposite side of the car guide rail 2A, respectively, when viewed from above the hoistway.
　空間ＳＰ３および空間ＳＰ４は、昇降路上方から見て、乗りかご４における奥行方向の左右両側面の内の他方側面、すなわち、本実施例ではかごドア８０に向かって右側の側面と、この他方側面に隣接しかつ平行な昇降路壁面１Ｂとの間の空間である。また、空間ＳＰ４および空間ＳＰ３は、昇降路上方から見て、それぞれ、乗りかご用ガイドレール２Ｂのかごドア８０側およびその反対側に位置する。 When viewed from above the hoistway, the space SP3 and the space SP4 are defined by the other side of the left and right sides in the depth direction of the car 4, that is, the right side toward the car door 80 in this embodiment, and the other side. is a space between the hoistway wall surface 1B adjacent to and parallel to the . The space SP4 and the space SP3 are located on the car door 80 side and the opposite side of the car guide rail 2B, respectively, when viewed from above the hoistway.
　空間ＳＰ５は、昇降路上方から見て、かごドア８０に対向する乗りかご４の背面と、この背面に隣接しかつ平行な昇降路壁面１Ｃとの間の空間である。 The space SP5 is the space between the back surface of the car 4 facing the car door 80 and the hoistway wall surface 1C adjacent to and parallel to this back surface when viewed from above the hoistway.
　図２に示すように、巻上機３および釣合おもり５０は、空間ＳＰ２内に位置する。このような狭い空間内に巻上機３を設けられるように、巻上機３として、本実施例では、薄型の巻上機が適用される。釣合おもり５０は、空間ＳＰ２内において、巻上機３の下方に位置する。巻上機３および釣合おもり５０は、空間ＳＰ２内において、昇降路上方から見て互いにオーバーラップするように配置される。 As shown in FIG. 2, the hoist 3 and the counterweight 50 are located within the space SP2. In order to install the hoist 3 in such a narrow space, a thin hoist is applied as the hoist 3 in this embodiment. The counterweight 50 is positioned below the hoisting machine 3 in the space SP2. The hoisting machine 3 and the counterweight 50 are arranged so as to overlap each other in the space SP2 when viewed from above the hoistway.
　空間ＳＰ２内において、主ロープ４０（図１）の一方端部がマシンビーム３Ｂ（図１）に固定される。主ロープ４０（図１）は、空間ＳＰ２内でプーリー５０Ａ（図１）、シーブ３Ａおよびかご下プーリー４Ｂに巻き掛けられ、さらに、乗りかご４の下部を通って、かご下プーリー４Ａに巻き掛けられる。かご下プーリー４Ａに巻き掛けられる主ロープ４０は、空間ＳＰ３内において、上方向に延びる。上方向に延びる主ロープ４０の他方端部が、空間ＳＰ３内における昇降路１の頂部近傍において、昇降路壁面１Ｂ、または乗りかご用ガイドレール２Ｂ、もしくはレールブラケット２０などに固定される主ロープ固定用部材（図示せず）に固定される。 Within the space SP2, one end of the main rope 40 (Fig. 1) is fixed to the machine beam 3B (Fig. 1). The main rope 40 (Fig. 1) is wound around the pulley 50A (Fig. 1), the sheave 3A, and the under-car pulley 4B in the space SP2, passes through the lower part of the car 4, and is wound around the under-car pulley 4A. be done. The main rope 40 wound around the under-car pulley 4A extends upward within the space SP3. The other end of the upwardly extending main rope 40 is fixed to the hoistway wall surface 1B, the car guide rail 2B, or the rail bracket 20 near the top of the hoistway 1 in the space SP3. It is fixed to a member (not shown).
　制御盤３０は、空間ＳＰ１内に配置される。制御盤３０は、昇降路１の頂部近傍における昇降路壁面１Ａに固定される。これにより、巻上機３と制御盤３０との間の配線長が抑制される。本実施例では、制御盤３０が薄型化されている。このため、制御盤３０を、狭い空間ＳＰ１内に配置できる。 The control panel 30 is arranged within the space SP1. The control panel 30 is fixed to the hoistway wall surface 1</b>A near the top of the hoistway 1 . This reduces the wiring length between the hoisting machine 3 and the control panel 30 . In this embodiment, the control panel 30 is thinned. Therefore, the control panel 30 can be arranged in the narrow space SP1.
　なお、各制御盤３０および巻上機３がともに昇降路１の頂部近傍に配置できるので、保守技術者が乗りかご４上で保守作業を行う場合、乗りかご４を移動させることなく、巻上機３および各制御盤３０に対する保守作業を行える。このため、保守作業の効率が向上する。 In addition, since both the control panel 30 and the hoisting machine 3 can be arranged near the top of the hoistway 1, when a maintenance engineer performs maintenance work on the car 4, the car 4 can be hoisted without moving it. Maintenance work for the machine 3 and each control panel 30 can be performed. Therefore, the efficiency of maintenance work is improved.
　空間ＳＰ１内における制御盤３０に格納される駆動装置によって巻上機３の電動機が回転すると、電動機に機械的に接続されるシーブ３Ａが回転する。シーブ３Ａの回転によって、シーブ３Ａに巻き掛けられる主ロープ４０が摩擦駆動されると、乗りかご４および釣合おもり５０は、昇降路１内において、互いに反対方向に移動する。このとき、乗りかご４は、昇降路１内に固定される一対の乗りかご用ガイドレール２Ａ，２Ｂによって案内される。また、釣合おもり５０は、昇降路１内に固定される一対の釣合おもり用ガイドレール２Ｃ，２Ｄによって案内される。 When the electric motor of the hoisting machine 3 is rotated by the driving device stored in the control panel 30 in the space SP1, the sheave 3A mechanically connected to the electric motor is rotated. When the sheave 3A rotates and the main rope 40 wound around the sheave 3A is frictionally driven, the car 4 and the counterweight 50 move in the hoistway 1 in opposite directions. At this time, the car 4 is guided by a pair of car guide rails 2A and 2B fixed in the hoistway 1. As shown in FIG. The counterweight 50 is guided by a pair of counterweight guide rails 2C and 2D fixed in the hoistway 1. As shown in FIG.
　なお、乗りかご用ガイドレール２Ａ，２Ｂは、それぞれ昇降路壁面１Ａ，１Ｂに固定されるレールブラケット２０によって支持される。また、釣合おもり用ガイドレール２Ｃ，２Ｄは、それぞれ昇降路壁面１Ａ，１Ｃに固定されるレールブラケット２０によって支持される。 The car guide rails 2A and 2B are supported by rail brackets 20 fixed to the hoistway wall surfaces 1A and 1B, respectively. The counterweight guide rails 2C and 2D are supported by rail brackets 20 fixed to the hoistway wall surfaces 1A and 1C, respectively.
　非接触型位置検出装置２００の移動部２００Ａは、かごドア８０用の敷居の下部に設けられる。また、非接触型位置検出装置２００の固定部２００Ｂは、乗場ドア（図示せず）用の敷居の下部に設けられる。このため、移動部２００Ａおよび固定部２００Ｂから構成される非接触型位置検出装置２００は、空間ＳＰ１～ＳＰ５の大きさに影響しない。 The moving part 200A of the non-contact position detection device 200 is provided below the threshold for the car door 80. Moreover, the fixed part 200B of the non-contact position detection device 200 is provided under the threshold for the hall door (not shown). Therefore, the non-contact position detection device 200 composed of the moving part 200A and the fixed part 200B does not affect the sizes of the spaces SP1 to SP5.
　非接触型位置検出装置２００の移動部２００Ａおよび固定部２００は、かごドア８０および乗場ドア（図示せず）が開閉する、昇降路および乗りかご４の出入口部（ｗ）の左右両側の一方に位置する。本実施例では、乗場から見て、出入口部（ｗ）の左側に位置する。 The moving part 200A and the fixed part 200 of the non-contact position detection device 200 are located on one of the left and right sides of the entrance (w) of the hoistway and the car 4 where the car door 80 and the landing door (not shown) open and close. To position. In this embodiment, it is located on the left side of the entrance (w) as viewed from the landing.
　図２に示すように、乗りかご４の上方から見て、乗りかご４の前側板における、非接触型位置検出装置２００に対向する領域に、非接触型位置検出装置２００の点検口となる開口部ａが設けられる。 As shown in FIG. 2, when viewed from above the car 4, an opening serving as an inspection port for the non-contact position detection device 200 is provided in a region of the front side plate of the car 4 facing the non-contact position detection device 200. Part a is provided.
　乗りかご４の上部には、非接触型速度検出器６０と、非接触型速度検出器６０が出力する信号を入力する安全制御装置７０が設けられる。本実施例において、非接触型速度検出器６０および安全制御装置７０は、ロープレスガバナシステムを構成する。 A non-contact speed detector 60 and a safety control device 70 for inputting the signal output by the non-contact speed detector 60 are provided above the car 4 . In this embodiment, the non-contact speed detector 60 and the safety controller 70 constitute a ropeless governor system.
　本実施例において、非接触型速度検出器６０として、画像センサが用いられる。安全制御装置７０は、非接触型速度検出器６０（画像センサ）が取得する乗りかご用ガイドレール２Ａの表面画像に基づいて乗りかご４の昇降速度を計測する。安全制御装置７０は、計測される昇降速度が第１過速度（例えば、定格速度の１．３倍を超えない速度）に達したと判定すると、巻上機の電源およびこの巻上機を制御する制御装置の電源を遮断するための指令信号を出力する。また、安全制御装置７０は、計測される下降速度が第２過速度（例えば、定格速度の１．４倍を超えない速度）に達したと判定すると、電動非常止め装置１００を作動するための指令信号を出力する。電動非常止め装置１００が作動すると、乗りかご用ガイドレール２Ａ，２Ｂの各々が一対の制動子１５１によって挟持されることにより、乗りかご４が非常停止される。 An image sensor is used as the non-contact speed detector 60 in this embodiment. The safety control device 70 measures the ascending/descending speed of the car 4 based on the surface image of the car guide rail 2A acquired by the non-contact speed detector 60 (image sensor). When the safety control device 70 determines that the measured lifting speed has reached a first overspeed (for example, a speed that does not exceed 1.3 times the rated speed), it controls the power supply of the hoist and this hoist. It outputs a command signal to cut off the power supply of the control device. Further, when the safety control device 70 determines that the measured descent speed has reached a second overspeed (for example, a speed not exceeding 1.4 times the rated speed), the Output command signal. When the electric emergency stop device 100 is activated, each of the car guide rails 2A and 2B is clamped by a pair of brakes 151, whereby the car 4 is brought to an emergency stop.
　本実施例においては、前述のように、移動部２００Ａおよび固定部２００Ｂによって構成される非接触型位置検出装置２００、並びに、非接触型速度検出器６０を有するロープレスガバナシステムによって作動する電動非常止め装置１００が用いられることにより、塔内機器を削減できる。 In the present embodiment, as described above, the non-contact type position detection device 200 constituted by the moving part 200A and the fixed part 200B and the electric emergency power system operated by the ropeless governor system having the non-contact speed detector 60 By using the stop device 100, equipment in the tower can be reduced.
　これにより、図２示す空間ＳＰ３ように、昇降路１内に、機器の占有度が低い空間を確保することができる。したがって、昇降路１の面積を低減することができる。また、図２に示す空間ＳＰ４のように、保守専用機器を常設できる空間を確保できる。 As a result, it is possible to secure a space in the hoistway 1 that is less occupied by equipment, such as the space SP3 shown in FIG. Therefore, the area of the hoistway 1 can be reduced. In addition, like the space SP4 shown in FIG. 2, it is possible to secure a space in which maintenance-dedicated equipment can be permanently installed.
　なお、本実施例では、空間ＳＰ３内には、テールコード６００を支持するテールコード支持部材６０１が昇降路壁面１Ｂに固定されている。また、空間ＳＰ４内には、底部近傍において、ピット梯子３００が常設される。 In this embodiment, a tail cord support member 601 that supports the tail cord 600 is fixed to the hoistway wall surface 1B in the space SP3. A pit ladder 300 is permanently installed in the vicinity of the bottom in the space SP4.
　本実施例では、かごドア８０に向かって左右両側の空間の内、一方（左側）の空間（ＳＰ１およびＳＰ２）に、巻上機３、釣合おもり５０および制御盤３０が設けられる。これにより、他方（右側）の空間（ＳＰ３およびＳＰ４）全体に低減の余地が生じる。このため、昇降路１の面積を確実に低減することができる。また、保守専用機器（ピット梯子３００）を常設できる空間を確実に確保できる。なお、本実施例では、ピット梯子３００は、空間ＳＰ３および空間ＳＰ４の内、乗場に隣接し、空間ＳＰ３よりも乗場に近い空間ＳＰ４内に常設される。これにより、保守作業者の利便性が向上するので、ピット内における保守作業の効率が向上する。 In this embodiment, the hoisting machine 3, the counterweight 50, and the control panel 30 are provided in one (left) space (SP1 and SP2) of the spaces on the left and right sides facing the car door 80. This leaves room for reduction across the other (right) space (SP3 and SP4). Therefore, the area of the hoistway 1 can be reliably reduced. In addition, it is possible to reliably secure a space for permanent installation of maintenance-dedicated equipment (pit ladder 300). In this embodiment, the pit ladder 300 is permanently installed in the space SP4, which is adjacent to the landing and closer to the landing than the space SP3, of the spaces SP3 and SP4. As a result, convenience for maintenance workers is improved, and efficiency of maintenance work in the pit is improved.
　次に、電動非常止め装置１００の構成例について、図３および図４を用いて説明する。 Next, a configuration example of the electric safety device 100 will be described using FIGS. 3 and 4. FIG.
　図３は、本実施例における電動非常止め装置１００の概略的構成の一例を示す、乗りかご４および電動非常止め装置１００の正面図である。 FIG. 3 is a front view of the car 4 and the electric safety device 100, showing an example of the schematic configuration of the electric safety device 100 in this embodiment.
　電動操作器１０３は、本実施例では電磁操作器であり、乗りかご４の上部に配置される。電動操作器１０３は、例えば、ソレノイドもしくは電磁石によって駆動される、可動片もしくは可動杆を備えるものである。 The electric operator 103 is an electromagnetic operator in this embodiment, and is arranged above the car 4 . The electric operator 103 has a movable piece or a movable rod driven by, for example, a solenoid or an electromagnet.
　電動操作器１０３は、乗りかご４が所定の過速状態（上述の「第２過速度」）に達すると、ロープレスガバナシステムにおける安全制御装置７０（図２）からの指令信号に応じて作動し、リンク機構１０４を変位させて制動子１５１を制動状態にする。 The electric operator 103 operates in response to a command signal from the safety control device 70 (FIG. 2) in the ropeless governor system when the car 4 reaches a predetermined overspeed condition (the above-described "second overspeed"). Then, the link mechanism 104 is displaced to bring the brake shoe 151 into the braking state.
　なお、図３においては、制動子１５１を案内するガイド部材や、制動子１５１およびガイド部を押圧する弾性体（ばねなど）は、図示を省略している。 In FIG. 3, illustration of a guide member that guides the brake shoe 151 and an elastic body (such as a spring) that presses the brake shoe 151 and the guide portion is omitted.
　リンク機構１０４は、電動操作器１０３によって駆動されるリンクシャフト１４０、リンクシャフト１４０に連動可能にリンクする引き上げロッド１４１を有しており、電動操作器１０３の作動に応じて引き上げロッド１４１が引き上げられる。これにより、引き上げロッド１４１に取り付けられる制動子１５１が引き上げられると、制動子１５１は乗りかご用ガイドレール（図２中の「２Ａ，２Ｂ」）を挟持する。 The link mechanism 104 has a link shaft 140 driven by the electric manipulator 103 and a lift rod 141 interlockably linked to the link shaft 140 , and the lift rod 141 is lifted according to the operation of the electric manipulator 103 . . As a result, when the brake 151 attached to the lifting rod 141 is pulled up, the brake 151 clamps the car guide rail ("2A, 2B" in FIG. 2).
　図４は、本実施例における電動非常止め装置１００の概略的構成の他の例を示す、乗りかご４および電動非常止め装置１００の正面図である。 FIG. 4 is a front view of the car 4 and the electric safety device 100, showing another example of the schematic configuration of the electric safety device 100 in this embodiment.
　図４の例では、電動操作器１０３は、乗りかご４の下部に配置される。電動非常止め装置１００の構成および動作は、図３の例と同様である。 In the example of FIG. 4, the electric operator 103 is arranged below the car 4 . The configuration and operation of the electric safety device 100 are the same as in the example of FIG.
　次に、本実施例のロープレスガバナシステムを構成する安全制御装置７０（図２）における速度検出手段について、図５を用いて説明する。 Next, the speed detection means in the safety control device 70 (FIG. 2) that constitutes the ropeless governor system of this embodiment will be explained using FIG.
　図５は、乗りかご用ガイドレール２Ａ（図２）の露出表面の画像の一例を示す模式図である。 FIG. 5 is a schematic diagram showing an example of an image of the exposed surface of the car guide rail 2A (FIG. 2).
　図５では、非接触型速度検出器６０（画像センサ）（図１，２）によって取得される、時刻ｔにおける画像Ｉ（ｔ）と時刻ｔ＋Δｔ（Δｔ：フレーム周期）における画像Ｉ（ｔ＋Δｔ）を示す。いずれも、ガイドレール２Ａを構成する鋼材の露出表面の画像であり、鋼材の露出表面における凹凸分布を示す輝度分布のパターンを示す。なお、時刻ｔから時刻ｔ＋Δｔまでの間、乗りかご４は下降している。 In FIG. 5, the image I(t) at time t and the image I(t+Δt) at time t+Δt (Δt: frame period) obtained by the non-contact speed detector 60 (image sensor) (FIGS. 1 and 2) are show. Both images are images of the exposed surface of the steel material that constitutes the guide rail 2A, and show the pattern of the luminance distribution showing the unevenness distribution on the exposed surface of the steel material. Note that the car 4 is lowered from time t to time t+Δt.
　乗りかご４が移動しているため、図５に示すように、画像Ｉ（ｔ）と画像Ｉ（ｔ＋Δｔ）との間では、画像のずれｄが生じる。なお、図５では、乗りかご４が下降しているため、画像フレーム中で、上方向に画像のずれｄが生じる。この画像のずれｄは、本実施例では、画像相関法を用いて、画像Ｉ（ｔ）と画像Ｉ（ｔ＋Δｔ）を比較することにより算出される。この場合、画像Ｉ（ｔ）もしくはその一部を、画像フレーム中で、ガイドレール２Ａの長手方向に沿って所定量ずつ移動しながら、移動した画像Ｉ（ｔ）と画像Ｉ（ｔ＋Δｔ）との相関関数値が算出される。相関関数値が最大値となる場合の画像Ｉ（ｔ）の総移動量が画像のずれｄとされる。 Since the car 4 is moving, an image shift d occurs between the image I(t) and the image I(t+Δt), as shown in FIG. In FIG. 5, since the car 4 is lowered, an image shift d occurs in the upward direction in the image frame. This image shift d is calculated by comparing the image I(t) and the image I(t+Δt) using the image correlation method in this embodiment. In this case, the image I(t) or a part thereof is moved in the image frame by a predetermined amount along the longitudinal direction of the guide rail 2A, and the image I(t) moved and the image I(t+Δt) A correlation function value is calculated. The total amount of movement of the image I(t) when the correlation function value is the maximum value is taken as the image shift d.
　画像のずれｄは、時間Δｔにおける乗りかご４の移動量（図５では下降量）に相当する。したがって、画像のずれｄおよび時間Δｔによって、乗りかごの速度ｖを計測することができる（ｖ＝ｄ／Δｔ）。 The image shift d corresponds to the amount of movement of the car 4 (the amount of descent in FIG. 5) at time Δt. Therefore, the speed v of the car can be measured from the image shift d and the time Δt (v=d/Δt).
　また、画像フレーム中で画像がずれる方向は、乗りかご４の移動方向（上昇、下降）を示す。したがって、画像のずれる方向に応じて画像のずれの正負を設定すれば、例えば、下方向（上昇方向）を正、上方向（下降方向）を負とすれば、Δｔごとに画像のずれｄを算出し、起動時のかご位置に積算すれば、現時点におけるかご位置を計測することができる。 Also, the direction in which the image shifts in the image frame indicates the moving direction (upward, downward) of the car 4 . Therefore, if the sign of the image shift is set according to the direction of image shift, for example, if the downward direction (upward direction) is positive and the upward direction (downward direction) is negative, the image shift d is calculated every Δt. By calculating and adding to the car position at startup, the current car position can be measured.
　なお、乗りかご用ガイドレールには、表面に凹凸をつけるために、研磨などにより表面仕上げが施されていることが好ましい。また、非接触型速度検出器６０（画像センサ）は、乗りかご用ガイドレール２Ａの表面を照らす光源を備えていることが好ましい。これらにより、かご位置の計測精度が向上する。 In addition, it is preferable that the car guide rail is surface-finished by polishing or the like in order to make the surface uneven. The non-contact speed detector 60 (image sensor) preferably has a light source for illuminating the surface of the car guide rail 2A. As a result, the car position measurement accuracy is improved.
　なお、上述のように、かごドア用敷居および乗場ドア用敷居に隣接して設けられる非接触型位置検出装置２００と、非接触型速度検出器６０を備えるロープレスガバナシステムによって作動される電動非常止め装置１００とにより、昇降路内に配置される塔内機器が削減される。さらに、昇降路１内において、乗りかご用ガイドレール２Ａの両側に位置する空間ＳＰ１およびＳＰ２、ならびに乗りかご用ガイドレール２Ｂの両側に位置する空間ＳＰ３およびＳＰ４の内、一空間内（図２では空間ＳＰ２）に巻上機３および釣合おもり５０が配置されるとともに、他の一空間内（図２では空間ＳＰ１）に制御盤が配置される。これにより、余の空間（図２では空間ＳＰ３およびＳＰ４）には、低減の余地が生じるとともに、保守専用機器（図２ではピット梯子３００）を常設が可能になる。 As described above, the non-contact position detection device 200 provided adjacent to the car door sill and the hall door sill and the electric emergency power system operated by the ropeless governor system comprising the non-contact speed detector 60 are provided. The stop device 100 reduces tower equipment located in the hoistway. Further, in the hoistway 1, one space (in FIG. 2, The hoisting machine 3 and the counterweight 50 are arranged in the space SP2), and the control panel is arranged in another space (the space SP1 in FIG. 2). As a result, the remaining space (spaces SP3 and SP4 in FIG. 2) has room to be reduced, and it becomes possible to permanently install equipment dedicated to maintenance (pit ladder 300 in FIG. 2).
　次に、非接触型位置検出装置２００（図１、図２）の点検口について、図６ないし１２を用いて説明する。 Next, the inspection opening of the non-contact position detection device 200 (FIGS. 1 and 2) will be explained using FIGS.
　図６は、本実施例における非接触型位置検出装置（２００Ａ，２００Ｂ）と点検口（ａ）の位置関係を示す、乗りかごおよび乗場の側面図である。なお、図６において、乗りかご４は、着床して、停止している。 FIG. 6 is a side view of the car and landing, showing the positional relationship between the non-contact position detection devices (200A, 200B) and the inspection door (a) in this embodiment. In FIG. 6, the car 4 has landed and stopped.
　図７は、図６におけるＡ方向に乗りかごを見た矢視図である。また、図８は、図６におけるＢ方向に乗場を見た矢視図である。 FIG. 7 is an arrow view of the car as seen in the A direction in FIG. Moreover, FIG. 8 is the arrow view which looked at the boarding point in the B direction in FIG.
　図６に示すように、非接触型位置検出装置２００の移動部２００Ａは、乗りかご４が備えている、かごドア８０用の敷居８１の下部に、支持部２０１を介して固定される。また、非接触型位置検出装置２００の固定部２００Ｂは、板状部材によって構成され、板平面を乗りかご４に向けて、乗場４００に設けられる乗場ドア９０用の敷居９１に固定される。固定部２００Ｂを構成する板状部材は、乗場床面から鉛直下方へ垂下している。乗りかご４の着床時、移動部２００Ａと固定部２００Ｂは互いに対向する。 As shown in FIG. 6, the moving part 200A of the non-contact position detection device 200 is fixed via a support part 201 to the lower part of the threshold 81 for the car door 80 provided in the car 4 . The fixed portion 200B of the non-contact position detection device 200 is made of a plate-like member and is fixed to the threshold 91 for the landing door 90 provided in the landing 400 with the plane of the plate facing the car 4 . A plate-shaped member that constitutes the fixed part 200B hangs vertically downward from the landing floor. When the car 4 lands on the floor, the moving part 200A and the fixed part 200B face each other.
　図７に示すように、非接触型位置検出装置２００の移動部２００Ａは、敷居８１に固定されて鉛直下方に垂下するエプロン４３の左右両側の一方（図７では左側）において、敷居８１の端部近傍に位置する。移動部２００Ａの上方において、乗りかご４のかご室を構成する前側板４２の下部には、かご床部４１（図６）の床面に隣接する開口部ａが設けられる。なお、本実施例においては、開口部ａは、操作盤５００の下方に位置する。 As shown in FIG. 7, the moving part 200A of the non-contact position detection device 200 moves the edge of the threshold 81 at one of the left and right sides (the left side in FIG. 7) of the apron 43 that is fixed to the threshold 81 and hangs vertically downward. located near the part. Above the moving part 200A, an opening a adjacent to the floor surface of the car floor 41 (FIG. 6) is provided in the lower part of the front side plate 42 forming the car chamber of the car 4. As shown in FIG. In addition, in this embodiment, the opening a is located below the operation panel 500 .
　開口部ａにより、乗りかご４内から非接触型位置検出装置２００（２００Ａ，２００Ｂ）を目視することが可能になるとともに、乗りかご４内から移動部２００Ａの位置の調整なと゛の保守作業が可能になる。したがって、非接触型位置検出装置２００の保守および点検が容易化される。なお、好ましくは、移動部２００Ａの支持部２０１が、手動で、図７における高さ方向、左右方向および前後方向のいずれかもしくは複数の方向に移動部２００Ａの位置を調整する機構を有する。これにより、乗りかご内から、開口部ａを使って、非接触型位置検出装置２００の保守作業が容易に実施できる。 Through the opening a, the non-contact position detection device 200 (200A, 200B) can be seen from inside the car 4, and maintenance work such as adjustment of the position of the moving part 200A can be performed from inside the car 4. become. Therefore, maintenance and inspection of the non-contact position detection device 200 are facilitated. Preferably, support portion 201 of moving portion 200A has a mechanism for manually adjusting the position of moving portion 200A in one or more of the height direction, left-right direction, and front-rear direction in FIG. Thereby, the maintenance work of the non-contact position detection device 200 can be easily performed from inside the car using the opening a.
　図８に示すように、非接触型位置検出装置２００の固定部２００Ｂは、敷居９１に固定されて鉛直下方に垂下するトーガード４０６の左右両側の一方（図８では右側）において、敷居９１の端部近傍おける移動部２００Ａに対向する位置に設けられる。 As shown in FIG. 8, the fixing portion 200B of the non-contact position detecting device 200 is fixed to the threshold 91 and is attached to one of the right and left sides of the toe guard 406 that hangs vertically downward (the right side in FIG. 8). It is provided at a position facing the moving part 200A in the vicinity of the part.
　なお、エプロン４３（図７）およびトーガード（図８）は、乗りかご４が正常に着床されない場合に、出入口部（ｗ）において、かご床部の床面と乗場床面との間に生じる隙間を塞ぐ板状部材からなる。 The apron 43 (Fig. 7) and the toe guard (Fig. 8) are formed between the floor of the car floor and the floor of the landing at the doorway (w) when the car 4 does not land normally. It consists of a plate-like member that closes the gap.
　また、本実施例においては、かごドア８０および乗場ドア９０は両開き型である。乗場ドア９０は、ハンガーケース４０７が備える支持部（図示せず）に開閉可能に懸架される。乗りかご４が着床すると、かごドア８０および乗場ドア９０は係合し、乗りかご４が備えるドア駆動装置によって、かごドア８０および乗場ドア９０は共に開閉される。 Also, in this embodiment, the car door 80 and the landing door 90 are of a double-opening type. The landing door 90 is suspended on a support (not shown) of the hanger case 407 so as to be able to be opened and closed. When the car 4 lands on the floor, the car door 80 and the landing door 90 are engaged, and both the car door 80 and the landing door 90 are opened and closed by the door driving device of the car 4 .
　移動部２００Ａを構成する非接触型位置センサとしては、光電センサ（受発光部）、誘導型の変位センもしくは近接センサ、容量型の変位センサもしくは近接センサのいずれかが適用される。移動部２００Ａが光電センサ（受発光部）である場合、固定部２００Ｂとして、反射板が適用される。移動部２００Ａが誘導型の変位センもしくは近接センサである場合、固定部２００Ｂとして、磁性板が適用される。移動部２００Ａが容量型の変位センサもしくは近接センサである場合、固定部２００Ｂとして、導体板が適用される。 Any of a photoelectric sensor (light emitting/receiving unit), an inductive displacement sensor or proximity sensor, or a capacitive displacement sensor or proximity sensor is applied as the non-contact position sensor that constitutes the moving part 200A. When the moving part 200A is a photoelectric sensor (light receiving/emitting part), a reflector is applied as the fixed part 200B. When the moving part 200A is an inductive displacement sensor or a proximity sensor, a magnetic plate is applied as the fixed part 200B. When the moving part 200A is a capacitive displacement sensor or a proximity sensor, a conductive plate is applied as the fixed part 200B.
　図６に示す敷居８１と敷居９１との間の距離Ｄは、例えば、１０～３０ｍｍ程度である。したがって、移動部２００Ａを構成する非接触型位置センサは、少なくともこの程度の距離で、被検出板を検出できる。 A distance D between the threshold 81 and the threshold 91 shown in FIG. 6 is, for example, about 10 to 30 mm. Therefore, the non-contact position sensor that constitutes the moving part 200A can detect the plate to be detected at least at this distance.
　固定部２００Ｂは、各階床の乗場の敷居９１に固定され、階床位置を示す被検出板となる。このため、エレベーターの据付時に固定された後は、固定部２００Ｂに対する位置調整などの保守作業を省略できる。 The fixed part 200B is fixed to the threshold 91 of the landing of each floor and serves as a plate to be detected that indicates the floor position. Therefore, maintenance work such as position adjustment for the fixed portion 200B can be omitted after the elevator is fixed during installation.
　なお、点検口となる開口部ａは、操作盤５００の下方に限らず、非接触型位置検出装置２００に隣接していれば、操作盤を有さない前側板の下部に設けられてもよい。ただし、本実施例（図７）の場合には、非接触型位置検出装置２００の移動部２００Ａを構成する非接触型位置センサからの信号配線の経路を操作盤５００に接続する各種配線の経路と共通化できる。したがって、非接触型位置センサからの信号線の配線長を低減できる。 Note that the opening a serving as an inspection port is not limited to the lower portion of the operation panel 500, and may be provided in the lower portion of the front side plate that does not have an operation panel as long as it is adjacent to the non-contact position detection device 200. . However, in the case of the present embodiment (FIG. 7), various wiring routes connecting the signal wiring route from the non-contact position sensor constituting the moving part 200A of the non-contact position detecting device 200 to the operation panel 500 can be shared with Therefore, the wiring length of the signal line from the non-contact position sensor can be reduced.
　図９ないし１２は、非接触型位置検出装置２００の点検口の構成例を示す、本実施例のエレベーターを昇降路内において乗りかごの上方から見た場合の部分平面図である。各図とも、図２における開口部ａの付近を示す。 9 to 12 are partial plan views of the elevator of this embodiment when viewed from above the car in the hoistway, showing an example of the configuration of the inspection door of the non-contact position detection device 200. FIG. Each figure shows the vicinity of the opening a in FIG.
　図９は、点検口の第１の構成例を示す部分平面図である。 FIG. 9 is a partial plan view showing a first configuration example of an inspection door.
　第１の構成例では、乗りかごの前側板４２に、開口部ａを塞ぐ蓋部３０１が設けられる。この蓋部３０１は、乗りかご内において開閉可能なように、ヒンジなどを介して前側板４２に設けられる。なお、蓋部３０１の開閉方向は、図示のような左右方向に限らず、上下方向（例えば、保守技術者にとって手前側）でもよい。 In the first configuration example, the front side plate 42 of the car is provided with a lid portion 301 that closes the opening portion a. The lid portion 301 is provided on the front side plate 42 via a hinge or the like so that it can be opened and closed inside the car. The opening and closing direction of the lid portion 301 is not limited to the horizontal direction as shown in the drawing, and may be the vertical direction (for example, the front side for maintenance engineers).
　好ましくは、蓋部３０１は、保守技術者が携帯する鍵によって開閉される錠を備える。この場合、開錠時に錠に挿入した鍵を取っ手として用いて、蓋部３０１を開いてもよい。 Preferably, the lid 301 has a lock that is opened and closed by a key carried by a maintenance engineer. In this case, the lid 301 may be opened using the key inserted into the lock at the time of unlocking as a handle.
　蓋部３０１は、スライド式で開閉可能なように構成されてもよい。 The lid part 301 may be configured to be slidable and openable.
　保守技術者は、乗りかご４が停止した状態、かつ、かごドア８０が閉じた状態で、点検口を用いて、非接触型位置検出装置２００に対する保守または点検作業を実施する。したがって、蓋部３０１の開放時に、乗りかご４およびかごドア８０の動作を防止するために、点検口にインターロックスイッチを設けることが好ましい。 The maintenance engineer uses the inspection door to perform maintenance or inspection work on the non-contact position detection device 200 with the car 4 stopped and the car door 80 closed. Therefore, in order to prevent the car 4 and the car door 80 from operating when the cover 301 is opened, it is preferable to provide an interlock switch at the inspection door.
　操作盤が設けられる側板には、保守時や非常時に使用される機器（例えば、保守運転用の操作盤）が設けられることが多く、通常時は乗りかご内において機器が露出しないように、機器を覆う蓋部が設けられている。したがって、点検口に乗りかご内から開閉可能な蓋部を設ける場合、図７に示すように、点検口となる開口部ａを、操作盤５００が設けられる前側板に設けることにより、意匠的にも違和感の少ない点検口を構成できる。 Equipment used during maintenance and emergencies (for example, a control panel for maintenance operation) is often installed on the side plate where the operation panel is installed, and the equipment is normally installed so that it is not exposed in the car. A lid is provided to cover the Therefore, when the inspection door is provided with a lid portion that can be opened and closed from inside the car, as shown in FIG. It is possible to configure an inspection port with little sense of incongruity.
　図１０は、点検口の第２の構成例を示す部分平面図である。 FIG. 10 is a partial plan view showing a second configuration example of the inspection door.
　第２の構成例では、第１の構成例と同様の蓋部３０１に加えて、乗りかご４の外側において、前側板４２の開口部ａを囲う枠体３０２が設けられる。なお、枠体３０２の奥行寸法は、かごドア８０の開閉時に、枠体３０２とかごドア８０が干渉し合わないような大きさに設定される。 In the second configuration example, in addition to the lid portion 301 similar to the first configuration example, a frame body 302 surrounding the opening a of the front side plate 42 is provided outside the car 4 . The depth dimension of the frame 302 is set so that the frame 302 and the car door 80 do not interfere with each other when the car door 80 is opened and closed.
　なお、蓋部３０１を備える枠体３０２を開口部ａに取り付けてもよい。この場合、いわば、蓋部３０１を備え、昇降路側で開口する箱体が開口部ａに取り付けられる。 Note that the frame 302 including the lid 301 may be attached to the opening a. In this case, a so-called box having a cover 301 and opening on the hoistway side is attached to the opening a.
　枠体３０２は、保守技術者が開口部ａの周辺の機器や配線に触れないようにするための保護具として機能する。また、枠体３０２は、非接触型位置検出装置２００の保守または点検に用いる器具の常設場所とすることができる。また、枠体３０２の縦方向側面と前側板４２との間の空間を、非接触型位置検出装置２００の移動部２００Ａを構成する非接触型位置センサからの信号線などの配線の経路の一部とすることができる。 The frame 302 functions as a protector to prevent maintenance engineers from touching the equipment and wiring around the opening a. Also, the frame 302 can be used as a permanent place for tools used for maintenance or inspection of the non-contact position detection device 200 . In addition, the space between the vertical side surface of the frame 302 and the front side plate 42 is used as one of wiring paths for signal lines, etc. from the non-contact position sensor that constitutes the moving part 200A of the non-contact position detection device 200. can be part of
　図１１は、点検口の第３の構成例を示す部分平面図である。 FIG. 11 is a partial plan view showing a third configuration example of the inspection door.
　第３の構成例では、第１の構成例における蓋部３０１に代えて、通常時は、ビスなどによって前側板４２に固定されることにより閉じられている蓋部３０１Ａが設けられる。非接触型位置検出装置２００の保守または点検時において、蓋部３０１Ａは、工具を用いて前側板４２から取り外すことにより、開放される。すなわち、蓋部３０１は、着脱可能に設けられる。 In the third configuration example, instead of the lid portion 301 in the first configuration example, a lid portion 301A that is normally closed by being fixed to the front side plate 42 with screws or the like is provided. During maintenance or inspection of the non-contact position detection device 200, the lid portion 301A is opened by removing it from the front side plate 42 using a tool. That is, the lid portion 301 is detachably provided.
　第２の構成例（図１０）と同様に枠体３０２（図１１中では二点鎖線で示す）を設けてもよい。なお、蓋部３０１Ａを備える枠体３０２を開口部ａに取り付けてもよい。この場合、いわば、蓋部３０１Ａを備え、昇降路側で開口する箱体が、開口部ａに取り付けられる。通常時は、蓋部３０１Ａは、ビスなどによって枠体３０２に固定されることにより閉じられている。 A frame 302 (indicated by a two-dot chain line in FIG. 11) may be provided as in the second configuration example (FIG. 10). Note that the frame 302 having the lid 301A may be attached to the opening a. In this case, a so-called box having a cover 301A and opening on the hoistway side is attached to the opening a. Normally, the lid portion 301A is closed by being fixed to the frame 302 with screws or the like.
　図１２は、点検口の第４の構成例を示す部分平面図である。 FIG. 12 is a partial plan view showing a fourth configuration example of the inspection door.
　第３の構成例では、点検口の構成は第１の構成例（図９）と同様であるが、第１の構成例とは異なり、非接触型位置検出装置２００の移動部２００Ａを構成する非接触型位置センサが枠体３０２内に設けられる。 In the third configuration example, the configuration of the inspection door is the same as in the first configuration example (FIG. 9), but unlike the first configuration example, the inspection door constitutes the moving part 200A of the non-contact position detection device 200. A non-contact position sensor is provided within the frame 302 .
　非接触型位置検出装置２００の固定部２００Ｂは、乗場ドア９０用の敷居９１上に位置する。図示しないが、固定部２００Ｂを構成する被検出板は、乗場ドア９０用の敷居９１において、移動部２００Ａに対向する位置に固定されるとともに、図６および図８に示した固定部２００Ｂ（被検出板）とは異なり、乗場床面から鉛直上方へ延びている。 The fixed part 200B of the non-contact position detection device 200 is positioned on the threshold 91 for the hall door 90. Although not shown, a plate to be detected that constitutes the fixed portion 200B is fixed to a threshold 91 for the landing door 90 at a position facing the moving portion 200A, and is fixed to the fixed portion 200B (detected plate) shown in FIGS. detection plate), it extends vertically upward from the landing floor.
　第４の構成例では、非接触型位置検出装置２００の保守または点検作業が容易化できる。 In the fourth configuration example, maintenance or inspection work of the non-contact position detection device 200 can be facilitated.
　上述の実施例によれば、非接触型位置検出装置２００を構成する移動部２００Ａ、および固定部２００Ｂが、それぞれ、乗りかご４における、かごドア８０用の敷居８１の近傍、およびに乗場に、互いに対向するように設けられる。さらに、乗りかご４の前側板４２には、非接触型位置検出装置２００を点検するための点検口が設けられる。この点検口は、非接触型位置検出装置２００に隣接して、前側板４２に設けられる開口部ａを有する。 According to the above-described embodiment, the moving part 200A and the fixed part 200B, which constitute the non-contact position detection device 200, are located in the vicinity of the threshold 81 for the car door 80 in the car 4 and at the landing, respectively. They are provided so as to face each other. Furthermore, the front side plate 42 of the car 4 is provided with an inspection opening for inspecting the non-contact position detection device 200 . This inspection door has an opening a provided in the front side plate 42 adjacent to the non-contact position detection device 200 .
　このような本実施例によれば、保守さ技術者は、乗りかご４内に居ながら、位置検出装置２００の保守または点検作業を実施できる。したがって、非接触型位置検出装置２００の保守または点検を容易化することができる。 According to this embodiment, the maintenance engineer can perform maintenance or inspection work on the position detection device 200 while staying inside the car 4 . Therefore, maintenance or inspection of the non-contact position detection device 200 can be facilitated.
　なお、本発明は、上記した実施例に限定されるものではなく、様々な変形例が含まれる。例えば、上記した実施例は本発明を分かりやすく説明するために詳細に説明したものであり、必ずしも説明した全ての構成を備えるものに限定されるものではない。また、実施例の構成の一部について、削除、他の構成の追加、他の構成との置換が可能である。 It should be noted that the present invention is not limited to the above-described examples, and includes various modifications. For example, the above-described embodiments have been described in detail in order to explain the present invention in an easy-to-understand manner, and are not necessarily limited to those having all the described configurations. Also, part of the configuration of the embodiment can be deleted, added to another configuration, or replaced with another configuration.
　例えば、エレベーターは、制御盤および巻上機が設置される機械室を有していてもよい。 For example, an elevator may have a machine room where a control panel and a hoist are installed.
１　昇降路、１Ａ，１Ｂ，１Ｃ　昇降路壁面、２Ａ，２Ｂ　乗りかご用ガイドレール、２Ｃ，２Ｄ　釣合おもり用ガイドレール、３　巻上機、３Ａ　シーブ、３Ｂ　マシンビーム、４　乗りかご、４Ａ，４Ｂ　かご下プーリー、２０　レールブラケット、３０　制御盤、４０　主ロープ、４１　かご床部、４２　前側板、４３　エプロン、５０　釣合おもり、５０Ａ　プーリー、６０　非接触型速度検出器、７０　安全制御装置、８０　かごドア、８１　敷居、９０　乗場ドア、９１　敷居、１００　電動非常止め装置、１０３　電動操作器、１０４　リンク機構、１４０　リンクシャフト、１４１　引き上げロッド、１５１　制動子、２００　非接触型位置検出装置、２００Ａ　移動部、２００Ｂ　固定部、２０１　支持部、３００　ピット梯子、３０１，３０１Ａ　蓋部、３０２　枠体、４００　乗場、４０６　トーガード、４０７　ハンガーケース、５００　操作盤、６００　テールコード、６０１　テールコード支持部材 1 hoistway, 1A, 1B, 1C hoistway wall, 2A, 2B car guide rail, 2C, 2D counterweight guide rail, 3 hoisting machine, 3A sheave, 3B machine beam, 4 car, 4A, 4B pulley under car, 20 rail bracket, 30 control panel, 40 main rope, 41 car floor, 42 front side plate, 43 apron, 50 counterweight, 50A pulley, 60 non-contact speed detector, 70 safety control device, 80 car door, 81 threshold, 90 landing door, 91 threshold, 100 electric safety device, 103 electric operator, 104 link mechanism, 140 link shaft, 141 lifting rod, 151 brake shoe, 200 non-contact position detection device, 200A Moving part, 200B fixed part, 201 support part, 300 pit ladder, 301, 301A lid part, 302 frame body, 400 platform, 406 toe guard, 407 hanger case, 500 operation panel, 600 tail cord, 601 tail cord support member

Claims (8)

  1. 　乗りかごの位置を検出する非接触型位置検出装置を備えるエレベーターにおいて、
    　前記非接触型位置検出装置は、
    　前記乗りかごにおいて、前記乗りかごに設けられる第１の敷居の近傍に設けられる移動部と、
    　乗場に設けられる第２の敷居に設けられ、前記乗りかごの着床時に前記移動部に対向する固定部と、
    を有し、
    　前記乗りかごの前側板には、前記非接触型位置検出装置を点検するための点検口が設けられ、
    　前記点検口は、前記非接触型位置検出装置に隣接して前記前側板に設けられる開口部を有することを特徴とするエレベーター。     In an elevator equipped with a non-contact position detection device that detects the position of the car,
    The non-contact position detection device is
    In the car, a moving part provided near a first threshold provided in the car;
    a fixed part provided at a second threshold provided at the landing and facing the moving part when the car lands on the floor;
    has
    The front side plate of the car is provided with an inspection opening for inspecting the non-contact position detection device,
    The elevator according to claim 1, wherein the inspection door has an opening provided in the front side plate adjacent to the non-contact type position detecting device.
  2. 　請求項１に記載のエレベーターにおいて、
    　前記点検口は、前記開口部を塞ぎ、前記乗りかご内から開閉可能な蓋部を有することを特徴とするエレベーター。     In the elevator according to claim 1,
    The elevator, wherein the inspection door closes the opening and has a lid that can be opened and closed from inside the car.
  3. 　請求項２に記載のエレベーターにおいて、
    　前記点検口は、前記乗りかごの外側において、前記前側板の前記開口部を囲う枠体を有することを特徴とするエレベーター。     In the elevator according to claim 2,
    The elevator, wherein the inspection door has a frame surrounding the opening of the front side plate outside the car.
  4. 　請求項２に記載のエレベーターにおいて、
    　前記蓋部は着脱可能に設けられていることを特徴とするエレベーター。     In the elevator according to claim 2,
    An elevator, wherein the lid is detachable.
  5. 　請求項３に記載のエレベーターにおいて、
    　前記非接触型位置検出装置の前記移動部は前記枠体内に位置することを特徴とするエレベーター。     In the elevator according to claim 3,
    The elevator, wherein the moving part of the non-contact position detection device is positioned within the frame.
  6. 　請求項１に記載のエレベーターにおいて、
    　前記開口部は、前記前側板の下部に設けられていることを特徴とするエレベーター。     In the elevator according to claim 1,
    The elevator, wherein the opening is provided in a lower portion of the front side plate.
  7. 　請求項６に記載のエレベーターにおいて、
    　前記開口部は、前記前側板に設けられる操作盤の下方に位置することを特徴とするエレベーター。     In the elevator according to claim 6,
    An elevator according to claim 1, wherein said opening is positioned below a control panel provided on said front side plate.
  8. 　請求項１に記載のエレベーターにおいて、
    　前記移動部は、前記第１の敷居の端部近傍に設けられ、
    　前記固定部は、前記第２の敷居の端部に設けられることを特徴とするエレベーター。     In the elevator according to claim 1,
    The moving part is provided near an end of the first threshold,
    The elevator, wherein the fixing portion is provided at an end portion of the second threshold.
PCT/JP2022/002872 2022-01-26 2022-01-26 Elevator WO2023144921A1 (en)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001240331A (en) * 2000-03-01 2001-09-04 Mitsubishi Electric Corp Position detecting device of elevator
JP2004149261A (en) * 2002-10-30 2004-05-27 Hitachi Building Systems Co Ltd Elevator car
JP2007091430A (en) * 2005-09-29 2007-04-12 Toshiba Elevator Co Ltd Elevator device
JP2015151213A (en) * 2014-02-12 2015-08-24 株式会社日立製作所 Elevator device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001240331A (en) * 2000-03-01 2001-09-04 Mitsubishi Electric Corp Position detecting device of elevator
JP2004149261A (en) * 2002-10-30 2004-05-27 Hitachi Building Systems Co Ltd Elevator car
JP2007091430A (en) * 2005-09-29 2007-04-12 Toshiba Elevator Co Ltd Elevator device
JP2015151213A (en) * 2014-02-12 2015-08-24 株式会社日立製作所 Elevator device

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