CN114599598B - Elevator device and door position detection device for elevator device - Google Patents
Elevator device and door position detection device for elevator device Download PDFInfo
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- CN114599598B CN114599598B CN201980101017.7A CN201980101017A CN114599598B CN 114599598 B CN114599598 B CN 114599598B CN 201980101017 A CN201980101017 A CN 201980101017A CN 114599598 B CN114599598 B CN 114599598B
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- door
- car
- landing
- state
- elevator
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B13/00—Doors, gates, or other apparatus controlling access to, or exit from, cages or lift well landings
- B66B13/22—Operation of door or gate contacts
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- 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
Abstract
In an elevator apparatus, a door position detection device detects that a landing door that opens and closes a specific landing entrance as an entrance from which an operator enters and exits a pit of a hoistway has moved from a fully closed position. The control device controls the operation of the car based on a signal from the door position detecting device. When the control device detects that the landing door is moved from the fully closed position and the operation mode is the automatic operation mode by the door position detection device when the car is not stopped at the floor where the specific landing entrance is located, the start of the car is prevented.
Description
Technical Field
The present invention relates to an elevator apparatus and a door position detection apparatus for an elevator apparatus.
Background
In a conventional elevator system, when a landing door at a lowermost floor is opened when a car stops at a floor other than the lowermost floor, an operation mode of the car is switched to a maintenance operation mode (for example, refer to patent document 1).
Prior art literature
Patent literature
Patent document 1: japanese patent laid-open No. 2007-276896
Disclosure of Invention
Problems to be solved by the invention
In the existing elevator system as described above, the open detection contacts of landing doors of a plurality of floors are connected in series with each other. Therefore, when the car door and landing door are open at the stop floor of the car, it is impossible to detect that the landing door is open at a floor other than the stop floor of the car. Therefore, it is difficult to control the opening/closing state of a specific elevator door.
The present invention has been made to solve the above-described problems, and an object of the present invention is to provide an elevator apparatus and a door position detecting apparatus for the elevator apparatus, which can perform control according to the opening/closing state of a specific elevator door.
Means for solving the problems
An elevator device of the present invention includes: a car; a door position detection device that detects movement of a landing door that opens and closes a specific landing entrance that is an entrance from which an operator enters and exits a pit of a hoistway from a fully closed position; and a control device for controlling the operation of the car according to the signal from the door position detection device, wherein the control device prevents the start of the car when the door position detection device detects that the landing door moves from the fully closed position and the operation mode is the automatic operation mode when the car is not stopped at the floor where the specific landing entrance is located.
The elevator device of the present invention further includes: a car; a door position detection device that detects movement of a landing door that opens and closes a specific landing entrance that is an entrance from which an operator enters and exits a pit of a hoistway from a fully closed position; and a control device for controlling the operation of the car based on the signal from the door position detection device, wherein the control device allows only manual operation of the car by operation in the pit of the hoistway when the door position detection device detects that the landing door is moved from the fully closed position and the operation mode is the manual operation mode when the car is not stopped at the floor where the specific landing entrance is located.
The door position detecting device of the elevator device of the present invention further comprises: a light projecting unit that projects detection light obliquely with respect to the opening/closing operation direction of the elevator door; a light receiving unit that receives the detection light; and a moving member provided to the elevator door and moving together with the elevator door during opening and closing operations of the elevator door, whereby a state of the moving member with respect to the optical path of the detection light changes between a state crossing the optical path and a state deviating from the optical path.
Effects of the invention
According to the present invention, control according to the opening/closing state of a specific elevator door can be performed.
Drawings
Fig. 1 is a schematic configuration diagram illustrating an elevator apparatus according to embodiment 1.
Fig. 2 is a front view illustrating the door position detecting apparatus of fig. 1.
Fig. 3 is a circuit diagram showing a main part of the elevator apparatus of fig. 1.
Fig. 4 is a flowchart showing an operation limiting operation of the elevator control apparatus of fig. 1.
Fig. 5 is a front view illustrating the optical sensor and the sensor holder of fig. 2.
Fig. 6 is a top view illustrating the sensor holder of fig. 5.
Fig. 7 is a plan view showing a door position detecting device according to embodiment 2.
Fig. 8 is a front view illustrating the door position detecting device of fig. 7.
Fig. 9 is a front view showing a door position detecting device according to embodiment 3.
Detailed Description
Hereinafter, embodiments will be described with reference to the drawings.
Embodiment 1.
Fig. 1 is a schematic configuration diagram illustrating an elevator apparatus according to embodiment 1. In the figure, a machine room 2 is provided in an upper portion of a hoistway 1. The machine room 2 is provided with a hoisting machine 3, a deflector pulley 4, and an elevator control device 5.
The hoisting machine 3 has a drive sheave 6, a hoisting machine motor not shown, and a hoisting machine brake not shown. The traction machine motor rotates the drive sheave 6. The hoisting machine brake keeps the driving sheave 6 stationary. The hoisting machine brake brakes the rotation of the drive sheave 6.
A suspension body 7 is wound around the drive sheave 6 and the deflector pulley 4. As the suspension body 7, a plurality of ropes or a plurality of straps are used. The 1 st end of the suspension body 7 is connected to the car 8. The 2 nd end of the suspension body 7 is connected to the counterweight 9.
The car 8 and the counterweight 9 are suspended in the hoistway 1 by the suspension body 7. The car 8 and the counterweight 9 are lifted and lowered in the hoistway 1 by rotating the drive sheave 6.
The elevator control device 5 controls the operation of the car 8 by controlling the hoisting machine 3. The elevator control device 5 calculates the state of the car 8 based on signals from a plurality of sensors, not shown. The state of the car 8 includes the position, speed, acceleration, and traveling direction of the car 8.
A pair of car guide rails, not shown, and a pair of counterweight guide rails, not shown, are provided in the hoistway 1. A pair of car guide rails guide the lifting and lowering of the car 8. A pair of counterweight guide rails guide the lifting and lowering of the counterweight 9.
The car 8 has a car frame 10 and a car room 11. The car frame 10 is connected to the suspension body 7. The car room 11 is supported by the car frame 10. A pair of car doors 12 is provided on the front surface of the car room 11. A door controller 13 is provided above the car 8, and the door controller 13 controls opening and closing operations of the car door 12.
A pair of landing doors 14 are provided at each of the landing of the plurality of floors. When the car 8 stops, the landing door 14 is opened and closed in conjunction with the car door 12. The pair of landing doors 14 are opened and closed in conjunction with each other.
A hoistway pit 1a is provided at the lowermost portion in the hoistway 1. A car buffer 15 and a counterweight buffer 16 are provided on the floor of the hoistway pit 1a.
When an operator performs maintenance work in the hoistway pit 1a, the operator moves the car 8 to a floor above the lowest floor, and then manually moves the lowest landing door 14 to enter the hoistway pit 1a from the lowest landing entrance. That is, the specific landing entrance that is the entrance of the operator to the hoistway pit 1a is the lowest landing entrance.
A door position detecting device 30 is provided at the lowermost landing. The door position detecting device 30 detects that the lowest landing door 14 has moved from the fully closed position. The elevator control device 5 controls the operation of the car 8 based on a signal from the door position detection device 30.
Fig. 2 is a front view illustrating the door position detecting device 30 of fig. 1. A landing sill 18 is provided at the landing. A landing sill groove 18a is provided on the upper surface of the landing sill 18. The landing door ridge groove 18a is continuously provided along the opening and closing operation direction of the landing door 14. The opening and closing direction of the landing door 14 is the width direction of the landing entrance and the left and right direction in fig. 2.
The door position detecting device 30 includes an optical sensor 31 as a light projecting section and a light receiving section, a sensor holder 32, and a retroreflective (re -type reflective) plate 33 as a moving member.
The optical sensor 31 emits detection light obliquely with respect to the opening and closing operation direction of the landing door 14. In this example, the optical sensor 31 emits detection light obliquely upward with respect to the horizontal plane. Further, the optical sensor 31 is held by a sensor holder 32.
The sensor holder 32 is fixed to the door pocket side end of the landing sill 18. That is, the optical sensor 31 is fixed to the door pocket side end portion of the landing sill 18 by means of the sensor holder 32.
The retroreflective sheet 33 is fixed to the door pocket side end surface of the landing door 14. Further, the retroreflective sheet 33 is disposed at a position higher than the optical sensor 31. Further, the retroreflective sheet 33 reflects the detection light from the optical sensor 31 in parallel with the incident direction.
The retroreflective sheet 33 moves together with the landing door 14 during the opening and closing operation of the landing door 14. Thus, the state of the retroreflective sheet 33 with respect to the optical path of the detection light changes between a state intersecting the optical path and a state deviating from the optical path.
In this example, when the landing door 14 is in the fully closed position, the retroreflective sheet 33 intersects the optical path of the detection light. That is, when the landing door 14 is in the fully closed position, the detection light from the optical sensor 31 is irradiated to the retroreflective sheet 33. The optical sensor 31 receives the detection light reflected by the retroreflective sheet 33.
When the landing door 14 moves from the fully closed position to the door pocket side by a predetermined amount or more, as shown by the two-dot chain line in fig. 2, the retroreflective sheet 33 is deviated from the optical path of the detection light, and the detection light is no longer irradiated to the retroreflective sheet 33. Thereby, the reflected light from the retroreflective sheet 33 is no longer incident on the optical sensor 31. The set amount is set to a value smaller than the size of the entrance of the landing through which the worker can pass, for example, 300mm or less.
Fig. 3 is a circuit diagram showing a main part of the elevator apparatus of fig. 1. The power supply unit 22, the 1 st relay unit 23, and the 2 nd relay unit 24 are housed in the power supply box 21. The power supply device 22 converts the electric power supplied from the elevator control device 5 into direct current and supplies the direct current to the optical sensor 31.
The pit switch 17 is connected to the 1 st relay unit 23. The optical sensor 31 is connected to the 2 nd relay unit 24. The normally closed contact of the 1 st relay unit 23 as the 1 st contact and the normally closed contact of the 2 nd relay unit 24 as the 2 nd contact are connected in series with the elevator control 5.
Here, a procedure when an operator performs maintenance work at the hoistway pit 1a will be described. First, the operator rides on the car 8, and moves the car 8 to the lowest floor. Next, the operator operates an operation mode changeover switch, not shown, in the car 8 to change the operation mode to the manual operation mode.
Thereafter, the worker moves to the lowest landing, operates a maintenance computer, not shown, and moves the car 8 to a floor other than the lowest landing, for example, to 2 floors. Then, the operator switches the operation mode to the pit entry mode.
The entry into pit mode is a mode that allows only manual operation of the car 8 by operation in the hoistway pit 1a. Therefore, when the operation mode is the pit entry mode, the operation by a third person other than the operator in the hoistway pit 1a is invalidated.
Thereafter, the operator operates an unlocking device, not shown, at the lowest floor to manually move the landing door 14 in the opening direction. Then, the operator operates the pit switch 17 and operates a main power switch, not shown. Thereafter, the operator enters the hoistway pit 1a, and performs maintenance work. The step of recovering the operation after the maintenance operation is completed is the reverse of the above.
Fig. 4 is a flowchart showing an operation limiting operation of the elevator control apparatus 5 of fig. 1. When the door position detecting device 30 detects that the lowest landing door 14 has moved from the fully closed position, the elevator control device 5 performs an operation limiting operation.
When the operation limiting operation starts, the elevator control device 5 determines in step S101 whether or not the car 8 is located at the lowest floor. When the car 8 stops at the lowest floor, the elevator control device 5 ends the operation limiting operation.
When the car 8 is located outside the lowest floor, the elevator control device 5 determines in step S102 whether or not the operation mode is the automatic operation mode. The automatic operation mode is a mode in which the car 8 is automatically moved for calls from landings at each floor and destination floor designations performed in the car 8. When the operation mode is the automatic operation mode, the elevator control device 5 stops the start of the car 8 in step S103.
After stopping the start of the car 8, the elevator control device 5 monitors in step S104 whether the operation mode has been switched to the manual operation mode. The elevator control 5 continues to prevent the start of the car 8 until the operation mode is switched to the manual operation mode.
When it is determined in step S102 that the operation mode is not the automatic operation mode, the elevator control device 5 determines in step S104 whether or not the operation mode is the manual operation mode.
When it is determined in step S104 that the operation mode is the manual operation mode, the elevator control device 5 switches the operation mode to the pit entry mode in step S105, and allows only manual operation of the car 8 by the operation in the hoistway pit 1a.
After that, the elevator control device 5 monitors whether or not the normal cancel operation is performed in step S106. The elevator control device 5 keeps entering the pit mode until a normal release operation is performed. When the normal release operation is performed, the elevator control device 5 ends the operation restriction operation.
In this way, when the elevator control device 5 detects that the lowest landing door 14 has moved from the fully closed position and the operation mode is the automatic operation mode when the car 8 is not stopped at the lowest landing, the door position detection device 30 prevents the car 8 from starting.
When the operation mode is switched to the manual operation mode after the start of the car 8 is prevented, the elevator control device 5 allows only the manual operation of the car 8 by the operation in the hoistway pit 1a with respect to the operation of the car 8.
When the door position detecting device 30 detects that the lowest landing door 14 has moved from the fully closed position and the operation mode is the manual operation mode when the elevator control device 5 does not stop the car 8 at the lowest floor, the manual operation of the car 8 by the operation in the hoistway pit 1a is permitted only for the operation of the car 8.
The function of the elevator control device 5 can be realized by a microcomputer, for example.
Next, the structure of the sensor holder 32 will be described. Fig. 5 is a front view showing the optical sensor 31 and the sensor holder 32 of fig. 2. Fig. 6 is a plan view showing the sensor holder 32 of fig. 5, and shows a state in which the optical sensor 31 is removed.
The sensor holder 32 has a base portion 34 and a holding plate 35. The base portion 34 has a 1 st member 36, a 2 nd member 37, and an adjustment bolt 38. A part of the 1 st member 36 and the 2 nd member 37 are integrally inserted into the landing sill groove 18a. As shown in fig. 5, the lower surface of the base 34 is opposed to the bottom surface of the landing sill groove 18a with a space therebetween.
As shown in fig. 6, the 1 st member 36 has a through hole 36a and a 1 st inclined surface 36b. The adjusting bolt 38 passes through the through hole 36a.
The 2 nd member 37 has a screw hole 37a and a 2 nd inclined surface 37b. The tip end portion of the adjustment bolt 38 is screwed into the screw hole 37 a. The 2 nd inclined surface 37b is in contact with the 1 st inclined surface 36b.
By further screwing the adjustment bolt 38 into the screw hole 37a, the 2 nd member 37 is moved relative to the 1 st member 36 obliquely downward to the right in fig. 6. Thus, the 1 st member 36 is abutted against one side wall of the landing sill groove 18a, the 2 nd member 37 is abutted against the other side wall of the landing sill groove 18a, and the base portion 34 is fixed to the landing sill 18.
The holding plate 35 has a flat plate-like fixing portion 35a and a flat plate-like holding portion 35b. The fixing portion 35a is fixed to the 1 st member 36 by a plurality of fixing screws 39.
The holding portion 35b protrudes upward from the fixing portion 35a at a right angle. The optical sensor 31 is held by the lower screw 50 and the upper screw 51 in the holding portion 35b.
The holding portion 35b has a lower hole and a plurality of upper holes 35c, which are not shown. A lower screw 50 passes through the lower hole. The upper screw 51 passes through any upper hole 35c among the plurality of upper holes 35c. By selecting the upper hole 35c through which the upper screw 51 passes, the inclination angle of the optical sensor 31 centering on the lower screw 50 can be selected.
In such an elevator apparatus, when the door position detecting device 30 detects that the landing door 14 at the lowest floor has moved from the fully closed position and the operation mode is the automatic operation mode when the car 8 is not stopped at the lowest floor, the start of the car 8 is prevented. Accordingly, control can be performed in accordance with the open/close state of the specific elevator door, i.e., the lowest landing door 14.
Further, it is possible to more reliably prevent the car 8 from being moved by an operation other than the operator in the hoistway pit 1a in a state where the operator enters the hoistway pit 1a.
Further, when the operation mode is switched to the manual operation mode after the start of the car 8 is prevented, only the manual operation of the car 8 by the operation in the hoistway pit 1a is allowed. Therefore, even after the start of the car 8 is stopped, the manual operation of the car 8 in the hoistway pit 1a can be performed by the operation of the operator.
When the door position detecting device 30 detects that the lowest landing door 14 has moved from the fully closed position and the operation mode is the manual operation mode when the car 8 is not stopped at the lowest floor, only manual operation of the car 8 by the operation in the hoistway pit 1a is permitted. Accordingly, control can be performed in accordance with the open/close state of the specific elevator door, i.e., the lowest landing door 14.
Further, it is possible to more reliably prevent the car 8 from being moved by an operation other than the operator in the hoistway pit 1a in a state where the operator enters the hoistway pit 1a.
The optical sensor 31 emits detection light obliquely with respect to the opening and closing operation direction of the landing door 14. The retroreflective sheet 33 moves together with the landing door 14 during the opening and closing operation of the landing door 14. Thus, the state of the retroreflective sheet 33 with respect to the optical path of the detection light changes between a state intersecting the optical path and a state deviating from the optical path.
Therefore, it is possible to detect whether or not the landing door 14 is within the set range with a simple structure without using a distance measuring sensor. Thus, the signal from the door position detecting device 30 can be used to control the open/close state of the landing door 14 at the lowest floor, which is the specific elevator door.
In addition, a combination of an optical sensor 31 and a retroreflective sheet 33, which serve as both a light projecting section and a light receiving section, is used. Therefore, wiring between the door position detecting device 30 and the elevator control device 5 can be easily performed.
In addition, the door position detecting device 30 can be easily added to the existing elevator apparatus.
Further, the optical sensor 31 can be easily attached to the landing sill 18 by using the landing sill groove 18a.
Further, since the holding portion 35b is provided with the plurality of upper holes 35c, the setting angle of the optical sensor 31 can be easily selected.
The sensor holder 32 according to embodiment 1 can be applied to either one of the right-opening and left-opening landing doors 14.
The lower surface of the base 34 is opposed to the bottom surface of the landing sill groove 18a with a gap. Therefore, dust can be suppressed from accumulating in the landing sill groove 18a.
Next, fig. 7 is a plan view showing a door position detecting device according to embodiment 2. Fig. 8 is a front view illustrating the door position detecting device of fig. 7. The door position detecting device 40 according to embodiment 2 includes a light projector 41 as a light projecting section, a light receiver 42 as a light receiving section, and a shielding member 43 as a moving member.
The projector 41 is provided at the 1 st end of the landing sill 18 in the opening and closing operation direction of the landing door 14. The light projector 41 emits detection light obliquely with respect to the opening and closing operation direction of the landing door 14. In this example, the projector 41 emits detection light obliquely upward with respect to the horizontal plane.
The light receiver 42 is provided at the 2 nd end of the landing sill 18 in the opening and closing operation direction of the landing door 14 via a stay 44. The light receiver 42 is disposed at a position higher than the light projector 41. The light receiver 42 receives the detection light from the light projector 41.
The shielding member 43 is provided to one of the pair of landing doors 14 at the lowest level, namely, the landing door 14. The shielding member 43 moves together with the landing door 14 during the opening and closing operation of the landing door 14. Thereby, the state of the shielding member 43 with respect to the optical path of the detection light changes between a state intersecting the optical path and a state deviating from the optical path.
The shielding member 43 reduces the light receiving amount of the detection light in the light receiver 42 when crossing the optical path of the detection light. In this example, the shielding member 43 shields the detection light when crossing the optical path of the detection light, and the light receiving amount of the detection light in the light receiver 42 is set to zero.
When the landing door 14 is in the fully closed position, the shielding member 43 is deviated from the optical path of the detection light. That is, when the landing door 14 is in the fully closed position, the light receiver 42 receives the detection light from the light projector 41.
When the landing door 14 moves from the fully closed position to the door pocket side by a predetermined amount or more, as shown by a two-dot chain line in fig. 8, the shielding member 43 intersects the optical path of the detection light. Thereby, the detection light from the projector 41 is blocked by the blocking member 43 and is no longer incident on the light receiver 42. The shielding member 43 crosses the optical path of the detection light until the landing door 14 moves to the fully open position. Other structures and operations are the same as those of embodiment 1.
By such a door position detecting device 40, control according to the open/close state of the specific elevator door, that is, the lowest landing door 14 can be performed.
Further, it is possible to more reliably prevent the car 8 from being moved by an operation other than the operator in the hoistway pit 1a in a state where the operator enters the hoistway pit 1a.
The light projector 41 emits detection light obliquely with respect to the opening and closing operation direction of the landing door 14. The shielding member 43 moves together with the landing door 14 during the opening and closing operation of the landing door 14. Thereby, the state of the shielding member 43 with respect to the optical path of the detection light changes between a state intersecting the optical path and a state deviating from the optical path.
Therefore, it is possible to detect whether or not the landing door 14 is within the set range with a simple structure without using a distance measuring sensor. Thus, the signal from the door position detecting device 40 can be used to control the open/close state of the landing door 14 at the lowest floor, which is the specific elevator door.
Further, the door position detecting device 40 can be easily added to the existing elevator apparatus.
Embodiment 3.
Next, fig. 9 is a front view showing a door position detecting device according to embodiment 3. The shielding member 43 of embodiment 3 intersects the optical path of the detection light when the landing door 14 is in the fully closed position. When the landing door 14 moves from the fully closed position to the door pocket side by a predetermined amount or more, the shielding member 43 is deviated from the optical path of the detection light as shown by the two-dot chain line in fig. 9. Other structures and operations are the same as those of embodiment 2.
With such a configuration, the same effects as those of embodiment 2 can be obtained.
In addition, the moving member according to embodiment 2 or embodiment 3 may reduce the amount of transmitted detection light when intersecting the optical path of the detection light without completely blocking the detection light.
In embodiments 1 to 3, the light projecting unit emits the detection light obliquely upward with respect to the horizontal plane, but the light projecting unit may emit the detection light obliquely downward with respect to the horizontal plane.
The installation site of the light projecting unit and the light receiving unit is not limited to the landing sill.
The specific landing entrance is not limited to the lowest landing entrance.
The detection target of the door position detection device may be a landing door of a floor other than the lowest floor, or may be a car door.
The control corresponding to the open/close state of the specific elevator door is not limited to the operation limiting operation described above. That is, the door position detecting device can be used for control other than the operation limiting operation described above.
The control device that performs control according to the open/close state of a specific elevator door is not limited to the elevator control device. The control device may be, for example, a safety monitoring device or a remote monitoring device.
The number of car doors for opening and closing the car doorway and the number of landing doors for opening and closing the 1 landing doorway are not limited to 2, but may be 1 or 4, for example.
The car door apparatus and the landing door apparatus may be opened and closed in a single-open manner or in a split manner.
The structure of the elevator apparatus is not limited to the structure of fig. 1. For example, the roping method may be 2: 1a rope winding mode.
The elevator apparatus may be a machine-room-less elevator, a double-deck elevator, a single-shaft multi-car elevator, or the like.
Description of the reference numerals
1a: pit of well; 5: an elevator control device; 8: a car; 14: landing doors (elevator doors); 30. 40: a door position detecting device; 31: an optical sensor (light projecting unit, light receiving unit); 33: retroreflective sheeting (moving parts); 41: a light projector (light projecting section); 42: a light receiver (light receiving section); 43: a shielding member (moving member).
Claims (6)
1. An elevator apparatus, wherein the elevator apparatus comprises:
a car;
a door position detection device that detects movement of a landing door that opens and closes a specific landing entrance that is an entrance from which an operator enters and exits a pit of a hoistway from a fully closed position; and
a control device for controlling the operation of the car according to the signal from the door position detecting device,
the control device prevents the start of the car when the door position detecting device detects that the landing door has moved from the fully closed position and the operation mode is the automatic operation mode when the car is not stopped at the floor where the specific landing entrance is located, and allows only the manual operation of the car by the operation in the hoistway pit while disabling the operation from a third party other than the operator in the hoistway pit when the operation mode is switched to the manual operation mode after the start of the car is prevented,
the door position detection device includes:
a moving member provided on the hoistway side of the landing door; and
a light projecting section and a light receiving section which are fixed to the outer side of the landing door in the opening/closing operation direction with respect to the specific landing entrance,
the light projecting section projects detection light obliquely with respect to the opening and closing operation direction of the landing door and the horizontal plane,
when the landing door moves from the fully closed position to the opening direction, the moving member moves together with the landing door, whereby the state of the moving member with respect to the optical path of the detection light changes from one of a state intersecting the optical path and a state deviating from the optical path to the other,
the light receiving unit changes from one of a state in which the detection light is received and a state in which the detection light is not received to the other in response to a change in the two states of the moving member.
2. An elevator apparatus, wherein the elevator apparatus comprises:
a car;
a door position detection device that detects movement of a landing door that opens and closes a specific landing entrance that is an entrance from which an operator enters and exits a pit of a hoistway from a fully closed position; and
a control device for controlling the operation of the car according to the signal from the door position detecting device,
the control device allows only manual operation of the car by operation in the hoistway pit and invalidates operation from a third party other than the operator in the hoistway pit with respect to operation of the car when the control device detects that the landing door has moved from a fully closed position and the operation mode is a manual operation mode by the door position detection device when the car is not stopped at a floor where the specific landing entrance is located,
the door position detection device includes:
a moving member provided on the hoistway side of the landing door; and
a light projecting section and a light receiving section which are fixed to the outer side of the landing door in the opening/closing operation direction with respect to the specific landing entrance,
the light projecting section projects detection light obliquely with respect to the opening and closing operation direction of the landing door and the horizontal plane,
when the landing door moves from the fully closed position to the opening direction, the moving member moves together with the landing door, whereby the state of the moving member with respect to the optical path of the detection light changes from one of a state intersecting the optical path and a state deviating from the optical path to the other,
the light receiving unit changes from one of a state in which the detection light is received and a state in which the detection light is not received to the other in response to a change in the two states of the moving member.
3. Elevator arrangement according to claim 1 or 2, wherein,
the elevator device further comprises:
a pit switch provided in the hoistway pit;
a 1 st contact which is a normally closed contact opened when the pit switch is operated; and
a 2 nd contact which is a normally closed contact opened when the door position detecting means detects that the landing door is moved from the fully closed position,
the 1 st contact and the 2 nd contact are connected in series with the control device.
4. A door position detection device for an elevator apparatus, wherein the door position detection device for an elevator apparatus comprises:
a moving member provided on a hoistway side of the elevator door; and
a light projecting portion and a light receiving portion which are fixed to the outside of the opening and closing operation direction of the elevator door with respect to the entrance,
the light projecting part projects detection light obliquely relative to the opening and closing operation direction of the elevator door and the horizontal plane,
when the elevator door moves from the fully closed position to the opening direction, the moving member moves together with the elevator door, whereby the state of the moving member with respect to the optical path of the detection light changes from one of a state crossing the optical path and a state deviating from the optical path to the other,
the light receiving unit changes from one of a state in which the detection light is received and a state in which the detection light is not received to the other in response to a change in the two states of the moving member.
5. The door position detecting device of an elevator apparatus according to claim 4, wherein,
the moving member is a retroreflective sheet that reflects the detection light when in a state of intersecting the optical path,
the light receiving unit receives the detection light emitted from the light projecting unit and reflected by the retroreflective sheet.
6. The door position detecting device of an elevator apparatus according to claim 4, wherein,
the moving member reduces the light receiving amount of the detection light in the light receiving portion when the moving member is in a state of intersecting the optical path.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2019/041112 WO2021075048A1 (en) | 2019-10-18 | 2019-10-18 | Elevator apparatus and door position detection apparatus thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114599598A CN114599598A (en) | 2022-06-07 |
| CN114599598B true CN114599598B (en) | 2023-05-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201980101017.7A Active CN114599598B (en) | 2019-10-18 | 2019-10-18 | Elevator device and door position detection device for elevator device |
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| Country | Link |
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| JP (1) | JP7032613B2 (en) |
| CN (1) | CN114599598B (en) |
| WO (1) | WO2021075048A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP7449494B2 (en) | 2022-07-07 | 2024-03-14 | フジテック株式会社 | elevator |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0891730A (en) * | 1994-09-22 | 1996-04-09 | Toshiba Elevator Technos Kk | Safety device for elevator |
| JPH08188364A (en) * | 1995-01-10 | 1996-07-23 | Mitsubishi Denki Bill Techno Service Kk | Simplified lift |
| JP2002053280A (en) * | 2000-08-09 | 2002-02-19 | Mitsubishi Electric Corp | Controller for elevator door |
| JP2007276896A (en) * | 2006-04-03 | 2007-10-25 | Mitsubishi Electric Corp | Control device for elevator |
| JP2008143614A (en) * | 2006-12-06 | 2008-06-26 | Mitsubishi Electric Corp | Elevator control device |
| CN103068710A (en) * | 2010-10-01 | 2013-04-24 | 三菱电机株式会社 | Elevator operation mode switching system |
| CN103328366A (en) * | 2011-02-02 | 2013-09-25 | 三菱电机株式会社 | Safety control device for elevator |
| CN109153543A (en) * | 2016-05-20 | 2019-01-04 | 三菱电机株式会社 | Elevator door apparatus |
-
2019
- 2019-10-18 CN CN201980101017.7A patent/CN114599598B/en active Active
- 2019-10-18 JP JP2021529835A patent/JP7032613B2/en active Active
- 2019-10-18 WO PCT/JP2019/041112 patent/WO2021075048A1/en active Application Filing
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0891730A (en) * | 1994-09-22 | 1996-04-09 | Toshiba Elevator Technos Kk | Safety device for elevator |
| JPH08188364A (en) * | 1995-01-10 | 1996-07-23 | Mitsubishi Denki Bill Techno Service Kk | Simplified lift |
| JP2002053280A (en) * | 2000-08-09 | 2002-02-19 | Mitsubishi Electric Corp | Controller for elevator door |
| JP2007276896A (en) * | 2006-04-03 | 2007-10-25 | Mitsubishi Electric Corp | Control device for elevator |
| JP2008143614A (en) * | 2006-12-06 | 2008-06-26 | Mitsubishi Electric Corp | Elevator control device |
| CN103068710A (en) * | 2010-10-01 | 2013-04-24 | 三菱电机株式会社 | Elevator operation mode switching system |
| CN103328366A (en) * | 2011-02-02 | 2013-09-25 | 三菱电机株式会社 | Safety control device for elevator |
| CN109153543A (en) * | 2016-05-20 | 2019-01-04 | 三菱电机株式会社 | Elevator door apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2021075048A1 (en) | 2021-04-22 |
| JPWO2021075048A1 (en) | 2021-11-11 |
| CN114599598A (en) | 2022-06-07 |
| JP7032613B2 (en) | 2022-03-08 |
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