JPWO2020003448A1 - Door device - Google Patents

Abstract

In the door device, the first car door opens and closes the car doorway. The first landing door opens and closes the landing entrance by moving together with the first car door while facing the first car door. The sensor detects an object that has entered the first detection region. The guide member is arranged between the first car door and the first landing door. Further, the guide members are arranged in a range in the height direction of the first car door and the first landing door. Further, the guide member moves together with the first car door and the first landing door in the direction in which the car entrance and the landing entrance are closed, thereby guiding a long object straddling the car entrance and the landing entrance to the first detection area.

Description

The present invention relates to a door device that opens and closes a car entrance and a landing entrance.

Conventionally, in order to detect that a long object is caught between a pair of car doors that open and close the car doorway, a pressure detection sensor is provided at the door stop side end of the car door door panel, and the lower end of the car door door panel. An elevator door device having a guide plate in the portion is known. In such a conventional door device, when a long object crosses the upper surface of the car sill arranged at the lower part of the car doorway, the pressure detection sensor detects the long object by the guide plate that moves when the car door is closed. (See, for example, Patent Document 1).

JP-A-2007-3266999

However, in the conventional door device shown in Patent Document 1, the guide plate projects from the lower end of the door panel of the car door into the sill groove of the car sill. Therefore, when there is a long object in the air away from the car sill, the long object cannot be guided to the pressure detection sensor by the movement of the guide plate. Therefore, even if a long object exists at the car entrance / exit, the pressure detection sensor may not be able to detect the long object.

The present invention has been made to solve the above problems, and an object of the present invention is to obtain a door device capable of more reliably detecting an object straddling a car entrance / exit and a landing entrance / exit.

The door device according to the present invention has a first car door that opens and closes a car doorway, a first landing door that opens and closes a landing door by moving together with a first car door while facing the first car door, and a first detection area. A sensor that detects an object that has entered, is placed between the first car door and the first landing door, and is placed within the height range of the first car door and the first landing door, and is a car doorway and a landing doorway. The first car door is based on the information from the guide member and the sensor that guide the object straddling the car entrance and the landing entrance to the first detection area by moving together with the first car door and the first landing door in the closing direction. It also has a door control unit that controls the movement of the first landing door.

According to the door device according to the present invention, it is possible to more reliably detect an object straddling the car entrance / exit and the landing entrance / exit.

It is a front view which shows the door device by Embodiment 1 of this invention. It is an enlarged perspective view which shows the door device of FIG. It is an enlarged top view which shows the door device of FIG. It is an enlarged front view which shows the guide member and the holding member of FIG. It is an enlarged front view which shows the guide member and the holding member in the door device by Embodiment 2 of this invention. It is an enlarged front view which shows the guide member and the holding member in the door device by Embodiment 3 of this invention. It is an enlarged front view which shows the guide member and the holding member in the door device according to Embodiment 4 of this invention. It is an enlarged top view which shows the door apparatus according to Embodiment 5 of this invention. It is an enlarged top view which shows the door apparatus according to Embodiment 6 of this invention. It is an enlarged top view which shows the door apparatus by Embodiment 7 of this invention. It is an enlarged perspective view which shows the door apparatus according to Embodiment 8 of this invention. It is an enlarged front view which shows the guide member and the holding member of the door device of FIG. It is a flowchart which shows the processing of the door control part of the door device by Embodiment 9 of this invention. It is a flowchart which shows the processing of the door control part of the door device by Embodiment 10 of this invention.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
Embodiment 1.
FIG. 1 is a front view showing a door device according to a first embodiment of the present invention. Further, FIG. 2 is an enlarged perspective view showing the door device of FIG. Further, FIG. 3 is an enlarged top view showing the door device of FIG. In the figure, the car 1 is arranged so as to be movable in the vertical direction in the hoistway of the elevator. The car 1 is provided with a car entrance / exit 2. Further, in the car 1, a hanger case 3 arranged at the upper part of the car entrance 2 and a car threshold 4 arranged at the lower part of the car entrance 2 are fixed.

A door rail 5 arranged along the width direction of the car entrance / exit 2 is fixed to the hanger case 3. A first car door 6 and a second car door 7 for opening and closing the car doorway 2 are suspended from the door rail 5. The first car door 6 and the second car door 7 are movable along the door rail 5 in the width direction of the car entrance / exit 2. The car doorway 2 is opened and closed when the first car door 6 and the second car door 7 move in the width direction of the car doorway 2.

Further, the hanger case 3 is provided with a door driving device 8 and a driven pulley 10. The door driving device 8 and the driven pulley 10 are arranged above the door rail 5.

The door driving device 8 is a device that generates a driving force for moving the first car door 6 and the second car door 7. A drive pulley 9 is provided on the drive shaft of the door drive device 8. The drive pulley 9 rotates about the drive shaft of the door drive device 8 by the drive force of the door drive device 8.

The drive pulley 9 and the driven pulley 10 are arranged apart from each other in the width direction of the car entrance / exit 2. An endless transmission belt 11 is wound around the drive pulley 9 and the driven pulley 10. The transmission belt 11 moves according to the rotation of the drive pulley 9.

The first car door 6 and the second car door 7 are individually connected to the transmission belt 11 via the connecting member 12. As a result, the first car door 6 and the second car door 7 move in opposite directions according to the movement of the transmission belt 11. The car entrance / exit 2 is opened / closed by moving the first car door 6 and the second car door 7 in opposite directions. Therefore, the door device according to the present embodiment is an elevator double door device.

The car sill 4 is arranged along the width direction of the car entrance / exit 2. The car sill 4 is provided with a sill groove (not shown) along the moving direction of the first car door 6 and the second car door 7. Each of the first car door 6 and the second car door 7 has a door panel 25 for opening and closing the car doorway 2, a door hanger 26 provided at the upper end of the door panel 25, and a plurality of legs provided at the lower end of the door panel 25. And have.

The door panels 25 of the first car door 6 and the second car door 7 are arranged on a straight line along the width direction of the car entrance / exit 2 when viewed from above. The door hangers 26 of the first car door 6 and the second car door 7 are hung on the door rail 5. Each leg of the first car door 6 and the second car door 7 is inserted into the sill groove of the car sill 4.

As shown in FIG. 3, each floor of the building is provided with a landing entrance / exit 21, which is a space connecting the landing and the inside of the hoistway. At the lower part of the landing entrance / exit 21, a landing threshold (not shown) is provided along the width direction of the landing entrance / exit 21. Further, on each floor of the building, a first landing door 22 and a second landing door 23 for opening and closing the landing entrance / exit 21 are provided.

When the car 1 is stopped on the floor, the first car door 6 faces the first landing door 22 in the depth direction of the car entrance 2 and the landing entrance 21. Further, when the car 1 is stopped on the floor, the second car door 7 faces the second landing door 23 in the depth direction of the car entrance 2 and the landing entrance 21.

When the first car door 6 faces the first landing door 22, as shown in FIG. 1, the relative movement of the first car door 6 and the first landing door 22 in the width direction of the car doorway 2 is involved. Limited by the compounding device 24. As a result, when the first car door 6 faces the first landing door 22, the first car door 6 moves in the width direction of the car doorway 2, so that the first landing door 22 becomes the first car door. Move with 6.

When the second car door 7 faces the second landing door 23, as shown in FIG. 1, the relative movement of the second car door 7 and the second landing door 23 in the width direction of the car doorway 2 is involved. Limited by the compounding device 24. As a result, when the second car door 7 faces the second landing door 23, the second car door 7 moves in the width direction of the car doorway 2, so that the second car door 23 becomes the second car door. Move with 7.

Therefore, when the car 1 is stopped on the floor, the first car door 6 moves together with the first landing door 22, and the second car door 7 moves together with the second landing door 23, whereby the car entrance 2 and The landing entrance 21 is opened and closed at the same time.

Sensors 33 are provided in each of the first car door 6 and the first car door 7. The sensor 33 has a light emitting side sensor unit 31 as a first sensor unit and a light receiving side sensor unit 32 as a second sensor unit.

The floodlight side sensor unit 31 is attached to the door closing side end of the door panel 25 of the first car door 6 by a sensor mounting member 35. Further, the light emitting side sensor unit 31 is arranged along the height direction of the first car door 6 and the first landing door 22. Further, the light emitting side sensor unit 31 is arranged between the first car door 6 and the first landing door 22 when viewed from above.

The light receiving side sensor unit 32 is attached to the door closing side end of the door panel 25 of the second car door 7 by a sensor mounting member 35. The light receiving side sensor unit 32 is arranged along the height direction of the second car door 7 and the second landing door 23. The light receiving side sensor unit 32 is arranged between the second car door 7 and the second landing door 23 when viewed from above. The sensor mounting member 35 that attaches the light receiving side sensor unit 32 to the second car door 7 is arranged separately from the sensor mounting member 35 that attaches the light emitting side sensor unit 31 to the first car door 6.

As shown in FIG. 2, the light emitting side sensor unit 31 has a plurality of first light emitting units 311 and a housing that is a support member that supports the plurality of first light emitting units 311. As shown in FIG. 2, the housing of the light emitting side sensor unit 31 is formed with a light emitting unit installation surface provided with a plurality of first light emitting units 311. The plurality of first light projecting units 311 are arranged at intervals from each other in the height direction of the first car door 6 and the first landing door 22.

The light receiving side sensor unit 32 has a plurality of first light receiving units 321 and a housing that is a support member that supports the plurality of first light receiving units 321. The housing of the light receiving side sensor unit 32 is formed with a light receiving unit installation surface provided with a plurality of first light receiving units 321. The plurality of first light receiving units 321 are arranged at intervals from each other in the height direction of the second car door 7 and the second landing door 23.

The light emitting side sensor unit 31 and the light receiving side sensor unit 32 are arranged in a state in which a plurality of first light emitting units 311 and a plurality of first light receiving units 321 are individually opposed to each other in the width direction of the car entrance / exit 2. .. The width direction of each of the light emitting side sensor unit 31 and the light receiving side sensor unit 32 coincides with the depth direction of the car entrance / exit 2 and the landing entrance / exit 21. As shown in FIG. 3, the position of the light emitting unit installation surface of the light emitting side sensor unit 31 is the same as the end surface of the door panel 25 of the first car door 6 on the door closing side in the width direction of the car entrance / exit 2. ing. The position of the light receiving portion installation surface of the light receiving side sensor unit 32 is the same as the end surface of the door panel 25 of the second car door 7 on the door closing side in the width direction of the car entrance / exit 2.

Between the light emitting side sensor unit 31 and the light receiving side sensor unit 32, there are a plurality of first linear first beam paths connecting the first light emitting unit 311 and the first light receiving unit 321 respectively. It is set as a detection area. Therefore, the plurality of first beam paths are set at intervals in the vertical direction on a virtual plane parallel to both the width direction and the vertical direction of the car entrance / exit 2. Further, as shown in FIG. 3, a plurality of first beam paths are set between the car entrance / exit 2 and the landing entrance / exit 21.

Each first light emitting unit 311 projects a beam 34 toward each first light receiving unit 321. The beam 34 emitted from each first light projecting unit 311 is received by each first light receiving unit 321 through each first beam path. When an object enters at least one of the plurality of first beam paths, the beam 34 passing through the first beam path containing the object is blocked by the object.

When each of the plurality of first light receiving units 321 continues to receive light from the beam 34, the sensor 33 does not detect an object. On the other hand, the sensor 33 detects an object by stopping the light receiving of the beam 34 by at least one of the plurality of first light receiving units 321. That is, the sensor 33 detects whether or not an object has entered the first detection region based on the presence or absence of light reception of the beam 34 by each first light receiving unit 321. Therefore, in this example, the sensor 33 is a photoelectric sensor.

As shown in FIG. 1, the car 1 is provided with a door control unit 20. Information of the sensor 33 indicating whether or not an object has entered the first beam path, which is the first detection region, is sent from the light receiving side sensor unit 32 to the door control unit 20. The door control unit 20 controls the door drive device 8 based on the information from the sensor 33. By controlling the door drive device 8, the door control unit 20 controls the movement of the first car door 6, the second car door 7, the first landing door 22, and the second landing door 23, respectively. When the sensor 33 detects an object during the closing operation of the first car door 6, the second car door 7, the first landing door 22, and the second landing door 23, the door control unit 20 causes the first car door 6, the second car. Control is performed to reverse the moving direction of the door 7, the first landing door 22, and the second landing door 23 from the door closing direction to the door opening direction.

A plate-shaped guide member 41 is fixed to the sensor mounting member 35 that attaches the floodlight side sensor unit 31 to the first car door 6. In this example, the guide member 41 is integrally formed with the sensor mounting member 35. As shown in FIG. 2, the guide member 41 is arranged along the height direction of the first car door 6 and the first landing door 22. Further, the guide member 41 is arranged in a range in the height direction of the first car door 6 and the first landing door 22. The guide member 41 may be arranged in the entire height range of the first car door 6 and the first landing door 22, or may be arranged in the entire height range of the first car door 6 and the first landing door 22. It may be arranged only in a part of. In this example, the position of the lower end surface of the guide member 41 coincides with the position of the lower surface of the door panel 25 of the first car door 6 in the vertical direction. Further, in this example, the position of the upper end surface of the guide member 41 is lower than the position of the upper end surface of the door panel 25 of the first car door 6.

Further, as shown in FIG. 3, the guide member 41 is arranged between the door panel 25 of the first car door 6 and the light emitting side sensor unit 31. The door closing side end of the guide member 41 projects toward the door closing side from the light emitting portion installation surface of the light emitting side sensor unit 31. Further, the position of the door closing side end of the guide member 41 is a position that does not protrude toward the door closing side from the door closing side end surface of the first landing door 22.

A plate-shaped pressing member 42 is fixed to the sensor mounting member 35 that attaches the light receiving side sensor unit 32 to the second car door 7. In this example, the pressing member 42 is integrally formed with the sensor mounting member 35. The pressing member 42 is arranged along the height direction of the second car door 7 and the second landing door 23. Further, the pressing member 42 is arranged in a range in the height direction of the second car door 7 and the second landing door 23. The holding member 42 may be arranged in the entire height range of the second car door 7 and the second landing door 23, or may be arranged in the entire height range of the second car door 7 and the second landing door 23. It may be arranged only in a part of. In this example, the position of the lower end surface of the pressing member 42 coincides with the position of the lower end surface of the guide member 41 in the vertical direction. Further, in this example, the position of the upper end surface of the pressing member 42 coincides with the position of the upper end surface of the guide member 41 in the vertical direction.

Further, the pressing member 42 is arranged between the door panel 25 of the second car door 7 and the light receiving side sensor unit 32. The door closing side end of the holding member 42 projects toward the door closing side from the light receiving portion installation surface of the light receiving side sensor portion 32. Further, as shown in FIG. 4, which will be described later, a vertical surface 421 along the vertical direction is formed at the end of the holding member 42 on the door closing side. The position of the vertical surface 421 of the pressing member 42 is a position on the door opening side of the end surface of the second landing door 23 on the door closing side.

The pressing member 42 is arranged at a position deviated from the guide member 41 in the depth direction of the car entrance / exit 2 and the landing entrance / exit 21. As a result, even when the first car door 6, the second car door 7, the first landing door 22 and the second landing door 23 reach the fully closed position where the car doorway 2 and the landing doorway 21 are fully closed, the holding member 42 does not interfere with the guide member 41. When the first car door 6, the second car door 7, the first landing door 22, and the second landing door 23 are in the fully closed position, a part of the door closing side end of the guide member 41 is the car entrance 2 and the landing. It overlaps with the door closing side end of the holding member 42 in the depth direction of the doorway 21.

FIG. 4 is an enlarged front view showing the guide member 41 and the pressing member 42 of FIG. A plurality of first recesses 411 arranged in the vertical direction are formed at the end of the guide member 41 on the door closing side. The respective positions of the plurality of first recesses 411 in the vertical direction are set according to the respective positions of the plurality of first beam paths.

A first guide surface 412 and a second guide surface 413 and 414 connected to the first guide surface 412 are formed on the inner surface of each first recess 411. Each first guide surface 412 is an inclined surface that is inclined with respect to the horizontal. Further, each of the first guide surfaces 412 is inclined from the upper end portion to the lower end portion of the first guide surface 412 toward the door opening side of the first car door 6.

The second guide surface 413 formed on the inner surface of each of the first recesses 411 other than the first recess 411 at the lowest position is horizontal from the lower end of the first guide surface 412 to the door closing side of the first car door 6. It is a horizontal plane that extends. On the other hand, the second guide surface 414 formed on the inner surface of the first recess 411 at the lowest position is inclined downward from the lower end of the first guide surface 412 toward the door closing side of the first car door 6. It is a face. Therefore, at the lower end of the guide member 41, a second guide surface 414 at the lowest position is formed as a lower end inclined surface.

As a result, the first guide surface 412 and the second guide surface 413 are alternately and continuously formed upward from the upper end of the second guide surface 414 at the lowest position at the door closing side end of the guide member 41. ing. The position of each first beam path corresponding to each first recess 411 is set with reference to the boundary portion between the first guide surface 412 and the second guide surfaces 413 and 414.

Here, a case where the long object 100 straddles the car entrance / exit 2 and the landing entrance / exit 21 will be described. As the long object 100, a string, a stick, or the like can be considered.

The guide member 41 moves together with the first car door 6 and the first landing door 22 in the direction in which the car entrance 2 and the landing entrance 21 are closed, so that the long object 100 straddling the car entrance 2 and the landing entrance 21 can be moved. 1 Guides to the first beam path, which is the detection region.

The guide member 41 guides the long object 100 along the first guide surface 412, and lowers the long object 100 toward the boundary portion between the first guide surface 412 and the second guide surfaces 413 and 414. Lead to. Further, the guide member 41 guides the long object 100 along the second guide surface 414 at the lowest position, and is elongated toward the boundary portion between the first guide surface 412 and the second guide surface 414. Guide the object 100 upwards. The long object 100 that reaches either the boundary portion between the first guide surface 412 and the second guide surface 413 or the boundary portion between the first guide surface 412 and the second guide surface 414 is the third object 100 through which the beam 34 passes. Enter the 1-beam path.

When the first car door 6, the first landing door 22, the second car door 7, and the second landing door 23 are in the fully closed position, that is, when the car entrance 2 and the landing entrance 21 are in the fully closed state. , As shown in FIG. 4, the pressing member 42 presses the long object 100 against the guide member 41. As a result, when each of the car entrance / exit 2 and the landing entrance / exit 21 is in the fully closed state, the long object 100 is held between the guide member 41 and the holding member 42.

The door devices include a hanger case 3, a car threshold 4, a door rail 5, a first car door 6, a second car door 7, a door drive device 8, a drive pulley 9, a driven pulley 10, a transmission belt 11, and a connecting member 12. It has a door control unit 20, a landing threshold, a first landing door 22, a second landing door 23, an engaging device 24, a sensor 33, a sensor mounting member 35, a guide member 41, and a holding member 42.

Next, the operation will be described. When the long object 100 straddles the car entrance 2 and the landing entrance 21 while resting on the upper surface of the car threshold 4, the first car door 6, the second car door 7, the first landing door 22 and the second landing When the closing operation of the door 23 is started, the long object 100 comes into contact with the second guide surface 414 at the lowest position.

After that, when the first car door 6 and the first landing door 22 further move in the door closing direction, the long object 100 does not stay on the upper surface of the car sill 4, but on the second guide surface 414 at the lowest position. It is guided along the upper first beam path. As a result, the beam 34 passing through the first beam path is blocked by the object 100, and the long object 100 is detected by the sensor 33.

Further, when the long object 100 straddles the car entrance 2 and the landing entrance 21 in the air away from the car threshold 4, the first car door 6, the second car door 7, the first landing door 22 and the like. When the closing operation of the second landing door 23 is started, the long object 100 comes into contact with the first guide surface 412.

After that, when the first car door 6 and the first landing door 22 further move in the door closing direction, the long object 100 does not stay between the two first beam paths but follows the first guide surface 412. Is guided to the lower first beam path. As a result, the beam 34 passing through the first beam path is blocked by the object 100, and the long object 100 is detected by the sensor 33.

When the long object 100 is detected by the sensor 33, the closing operation of the door is reversed to the opening operation of the door under the control of the door control unit 20.

In such an elevator door device, a guide member 41 is arranged between the first car door 6 and the first landing door 22. Therefore, the guide member 41 is arranged in the height range of the first car door 6 and the first landing door 22 without the guide member 41 interfering with each of the first car door 6 and the first landing door 22. be able to. As a result, even if the object 100 straddling the car entrance 2 and the landing entrance 21 is held in the air, the guide member 41 can more reliably guide the object 100 to the first beam path of the sensor 33. Therefore, the object 100 straddling between the car entrance 2 and the landing entrance 21 can be detected more reliably.

Further, even if the long object 100 is located outside the position of the first beam path of the sensor 33, the long object 100 can be guided to the first beam path of the sensor 33 by the guide member 41. Therefore, the number of the first beam paths of the sensor 33 can be reduced, and the first detection region of the sensor 33 can be reduced. As a result, the cost of the sensor 33 can be reduced.

Further, the guide member 41 is arranged between the first car door 6 and the light emitting side sensor unit 31. Therefore, the guide member 41 can be arranged in the gap between the first car door 6 and the light emitting side sensor unit 31, and the guide member 41 can be easily attached to the existing first car door 6. That is, by arranging the guide member 41 between the first car door 6 and the light emitting side sensor unit 31, it is possible to prevent the installation space of the guide member 41 from increasing toward the landing side. As a result, the guide member 41 can be easily attached to the existing first car door 6 while maintaining the distance between the car doorway 2 and the landing doorway 21.

Further, the pressing member 42 is arranged between the second car door 7 and the light receiving side sensor unit 32. Therefore, the holding member 42 can be arranged in the gap between the second car door 7 and the light receiving side sensor unit 32, and the holding member 42 can be easily attached to the existing second car door 7.

Further, the guide member 41 is provided on the sensor mounting member 35 that mounts the light emitting side sensor portion 31 to the first car door 6. Therefore, the guide member 41 and the sensor mounting member 35 can be treated as an integral part. As a result, the number of parts can be reduced. Further, it is possible to facilitate the work of adjusting the positional relationship between the light emitting side sensor unit 31 and the guide member 41. Therefore, the burden of manufacturing work of the door device can be reduced, and the manufacturing cost can be reduced.

Further, the pressing member 42 is provided on the sensor mounting member 35 that attaches the light receiving side sensor portion 32 to the second car door 7. Therefore, the pressing member 42 and the sensor mounting member 35 can be treated as an integral part. As a result, the number of parts can be reduced. Further, it is possible to facilitate the work of adjusting the positional relationship between the light receiving side sensor unit 32 and the pressing member 42. Therefore, the burden of manufacturing work of the door device can be reduced, and the manufacturing cost can be reduced.

Further, the pressing member 42 is arranged at a position deviated from the guide member 41 in the depth direction of the car entrance / exit 2 and the landing entrance / exit 21. Therefore, while avoiding the pressing member 42 from interfering with the guide member 41, the pressing member 42 can more reliably press the long object 100 to the guide member 41.

Further, the guide member 41 is formed with a first guide surface 412 that guides the long object 100 to the lower first beam path. Therefore, the long object 100 can be guided in a direction that does not oppose the gravity applied to the long object 100, and the guidance of the long object 100 to the first beam path can be further ensured.

Further, at the lower end of the guide member 41, a second guide surface 414 at the lowest position for guiding the long object 100 to the upper first beam path is formed. Therefore, even if the first beam path is not set at the height of the lower surface of the first car door 6 and the second car door 7, where it is difficult to set the first beam path, the long object 100 can be easily set. And it can be detected more reliably.

Embodiment 2.
In the first embodiment, a vertical surface 421 along the vertical direction is formed at the door closing side end of the pressing member 42. However, a plurality of second recesses may be formed at the end of the pressing member 42 on the door closing side.

FIG. 5 is an enlarged front view showing a guide member 41 and a pressing member 42 in the door device according to the second embodiment of the present invention. A plurality of second recesses 422 arranged in the vertical direction are formed at the end of the pressing member 42 on the door closing side. The respective positions of the plurality of second recesses 422 in the vertical direction are set according to the respective positions of the plurality of first beam paths.

A first pressing surface 423 and a second pressing surface 424, 425 connected to the first pressing surface 423 are formed on the inner surface of each of the second recesses 422. The first holding surface 423 is an inclined surface that is inclined with respect to the horizontal. Further, the first holding surface 423 is inclined from the upper end portion to the lower end portion of the first holding surface 423 toward the door opening side of the second car door 7.

The second holding surface 424 formed on the inner surface of each of the second recesses 422 other than the second recess 422 at the lowest position is horizontally formed from the lower end of the first holding surface 423 toward the door closing side of the second car door 7. It is a horizontal plane that extends. On the other hand, the second pressing surface 425 formed on the inner surface of the second recess 422 at the lowest position is inclined downward from the lower end of the first pressing surface 423 toward the door closing side of the second car door 7. It is a face. Therefore, at the lower end of the pressing member 42, a second pressing surface 425 at the lowest position is formed as a lower end inclined surface.

As a result, the first pressing surface 423 and the second pressing surface 424 are alternately and continuously formed upward from the upper end of the second pressing surface 425 at the lowest position at the door closing side end of the pressing member 42. ing. The position of each first beam path corresponding to each second recess 422 is set with reference to the boundary portion between the first holding surface 423 and the second holding surface 424, 425.

When each of the car entrance 2 and the landing entrance 21 is in the fully closed state, the pressing member 42 presses the long object 100 against the guide member 41 as shown in FIG. In a state where the pressing member 42 presses the long object 100 against the guide member 41, the long object 100 is sandwiched between the first recess 411 and the second recess 422. As a result, the long object 100 is held between the guide member 41 and the pressing member 42. Other configurations are the same as those in the first embodiment.

In such a door device, the first recess 411 is formed in the guide member 41, and the second recess 422 is formed in the pressing member 42. Therefore, the long object 100 can be sandwiched between the first recess 411 and the second recess 422, and the guide member 41 and the pressing member 42 each guide the long object 100 to the first beam path. Can be done. As a result, the long object 100 can be more reliably guided to the first beam path, which is the first detection region, and the long object 100 can be detected more reliably.

In the first and second embodiments, the light emitting side sensor unit 31 is provided in the first car door 6, and the light receiving side sensor unit 32 is provided in the second car door 7. However, the light emitting side sensor unit 31 may be provided on the first landing door 22, and the light receiving side sensor unit 32 may be provided on the second landing door 23. In this case, the guide member 41 is provided on the sensor mounting member that attaches the light emitting side sensor unit 31 to the first landing door 22, and the holding member 42 is provided on the sensor mounting member that attaches the light receiving side sensor unit 32 to the second landing door 23. Be done. Further, in this case, the guide member 41 is arranged between the light emitting side sensor unit 31 and the first landing door 22. Further, in this case, the pressing member 42 is arranged between the light receiving side sensor unit 32 and the second landing door 23.

Embodiment 3.
In the first embodiment, the sensor 33 for detecting the long object 100 is a photoelectric sensor. However, the sensor that detects the long object 100 may be a camera.

FIG. 6 is an enlarged front view showing a guide member 41 and a pressing member 42 in the door device according to the third embodiment of the present invention. A camera (not shown) is arranged as a sensor between the car entrance 2 and the landing entrance 21. The camera is provided on the first car door 6. The camera is arranged at the position of the light emitting side sensor unit 31 of the first embodiment. The detection area of the camera is the first detection area along the moving direction of the first car door 6 and the first landing door 22, that is, the width direction of the car entrance 2 and the landing entrance 21. The detection area of the camera is a band-shaped area having a set width D in the vertical direction. The camera detects a long object 100 by entering the object 100 in the detection area of the camera.

An upper guide surface 415 and a lower guide surface 416 separated from each other in the vertical direction and an intermediate surface 417 connecting the upper guide surface 415 and the lower guide surface 416 to each other are formed at the door closing side end of the guide member 41. There is.

The upper guide surface 415 is formed at the upper end of the guide member 41. Further, the upper guide surface 415 is inclined toward the door opening side of the first car door 6 from the upper end portion to the lower end portion of the upper guide surface 415.

The lower guide surface 416 is formed at the lower end of the guide member 41. Further, the lower guide surface 416 is inclined from the lower end portion of the lower guide surface 416 toward the upper end portion toward the door opening side of the first car door 6.

The intermediate surface 417 is a surface that connects the lower end portion of the upper guide surface 415 and the upper end portion of the lower guide surface 416. The intermediate surface 417 extends along the vertical direction.

The positions of the upper guide surface 415, the lower guide surface 416, and the intermediate surface 417 in the vertical direction are set according to the detection area of the camera. The position of the upper guide surface 415 is set to a position slightly upward from the detection area of the camera. The position of the lower guide surface 416 is set to a position deviating downward from the detection area of the camera. The position of the intermediate surface 417 is set within the detection area of the camera.

In a state where the long object 100 straddles the car entrance 2 and the landing entrance 21, the guide member 41 moves in the direction in which the car entrance 2 and the landing entrance 21 are closed, so that the long object 100 is moved to the upper guide surface 415. Alternatively, it is guided to the detection area of the camera along the lower guide surface 416.

When each of the car entrance 2 and the landing entrance 21 is in the fully closed state, the pressing member 42 presses the long object 100 against the guide member 41 as shown in FIG. As a result, the long object 100 is held between the guide member 41 and the pressing member 42. Other configurations are the same as those in the first embodiment.

In this way, by using the sensor for detecting the object 100 as a camera, a wider detection area can be secured. Therefore, the long object 100 can be detected more reliably.

In the above example, a camera is used as a sensor for detecting a long object 100. However, a pressure-sensitive sensor may be used as a sensor for detecting the long object 100. In this case, the first detection region, which is the detection region of the pressure sensor, is the region of the pressure sensitive surface set in the pressure sensor. Further, in this case, the pressure sensor is attached to the intermediate surface 417 of the guide member 41. Even in this way, the long object 100 can be guided to the detection region of the pressure sensor, and the long object 100 can be detected more reliably. The pressure sensor may be arranged at a position where the long object 100 guided by the guide member 41 comes into contact with the sensor. Therefore, the pressure sensor may be attached to, for example, the first car door 6 instead of the guide member 41.

Embodiment 4.
In the third embodiment, the first detection region of the sensor is a region along the width direction of the car entrance / exit 2 and the landing entrance / exit 21. However, the first detection region of the sensor may be a region along the vertical direction.

FIG. 7 is an enlarged front view showing a guide member 41 and a pressing member 42 in the door device according to the fourth embodiment of the present invention. In the present embodiment, the sensor that detects the long object 100 is a photoelectric sensor. The configuration of the photoelectric sensor in the present embodiment is the same as that of the sensor 33 in the first embodiment. A plurality of first beam paths through which the beam 34 of the sensor passes are set along the vertical direction. The light emitting side sensor unit, which is the first sensor unit included in the sensor, is provided in the hanger case 3. The light receiving side sensor unit, which is the second sensor unit included in the sensor, is provided on the side surface in the width direction of the car sill 4. The first beam path of the sensor, that is, the first detection region is set only in the central range in the width direction of the car entrance / exit 2 and the landing entrance / exit 21. Other configurations are the same as in the third embodiment.

In a state where the long object 100 straddles the car entrance 2 and the landing entrance 21, the guide member 41 moves in the direction in which the car entrance 2 and the landing entrance 21 are closed, so that the long object 100 is moved to the upper guide surface 415. Alternatively, it is guided to the first detection region of the sensor along the lower guide surface 416.

When each of the car entrance 2 and the landing entrance 21 is in the fully closed state, the pressing member 42 presses the long object 100 against the guide member 41 as shown in FIG. 7. As a result, the long object 100 is held between the guide member 41 and the pressing member 42 in the first detection region of the sensor.

In this way, even if the first detection region of the sensor that detects the long object 100 is a region along the vertical direction, the guide member 41 moves in the direction in which the car entrance / exit 2 and the landing entrance / exit 21 are closed. The long object 100 can be guided to the first detection region of the sensor. As a result, the long object 100 can be detected more reliably.

In the above example, a camera may be used as a sensor for detecting the object 100. In this case, the camera is attached to the hanger case 3. Further, in this case, a camera may be attached to the upper part of the landing entrance / exit 21.

Further, in the above example, a sensor for detecting the object 100 is attached to the hanger case 3 and the car sill 4. However, sensors for detecting the object 100 may be attached to the upper part and the lower part of the landing entrance / exit 21.

Embodiment 5.
FIG. 8 is an enlarged top view showing the door device according to the fifth embodiment of the present invention. The guide member 41 is attached to the door panel 25 of the first car door 6 by the component attachment member 51. The component mounting member 51 that attaches the guide member 41 to the first car door 6 is a member separate from the sensor mounting member 35 that attaches the floodlight side sensor unit 31 to the first car door 6. The guide member 41 is arranged between the light emitting side sensor unit 31 and the first landing door 22.

The pressing member 42 is attached to the door panel 25 of the second car door 7 by the component attaching member 51. The component mounting member 51 that attaches the holding member 42 to the second car door 7 is a member separate from the sensor mounting member 35 that attaches the light receiving side sensor unit 32 to the second car door 7. The pressing member 42 is arranged between the light receiving side sensor unit 32 and the second landing door 23.

The pressing member 42 is arranged at a position deviated from the guide member 41 in the depth direction of the car entrance / exit 2 and the landing entrance / exit 21. As a result, the holding member 42 does not interfere with the guide member 41 even when the car entrance / exit 2 and the landing entrance / exit 21 are fully closed. Other configurations are the same as those in the first embodiment.

In such a door device, the guide member 41 is arranged between the light emitting side sensor unit 31 and the first landing door 22. Therefore, the guide member 41 can be easily arranged while avoiding the light emitting side sensor unit 31. Further, the lower part of the guide member 41 can be inserted into the gap between the car sill 4 and the landing sill. As a result, even when the long object 100 straddling the car entrance 2 and the landing entrance 21 is placed on the car sill 4 and the landing sill, the long object 100 can be more reliably guided to the first detection region of the sensor 33. Can be done. Further, the distances from each of the first car door 6 and the first landing door 22 to the guide member 41 can be easily adjusted. As a result, the guide member 41 can be obscured from the passengers in the car 1 and at the landing.

Further, the pressing member 42 is arranged between the light receiving side sensor unit 32 and the second landing door 23. Therefore, the pressing member 42 can be easily arranged while avoiding the light receiving side sensor unit 32. Further, the lower portion of the holding member 42 can be inserted into the gap between the car sill 4 and the landing sill. As a result, the long object 100 guided to the first detection region of the sensor 33 by the guide member 41 can be more reliably held. Further, the distances from each of the second car door 7 and the second landing door 23 to the holding member 42 can be easily adjusted. As a result, the pressing member 42 can be obscured from the passengers in the car 1 and at the landing.

In the above example, the light emitting side sensor unit 31 is provided in the first car door 6, and the light receiving side sensor unit 32 is provided in the second car door 7. However, the light emitting side sensor unit 31 may be provided on the first landing door 22, and the light receiving side sensor unit 32 may be provided on the second landing door 23. In this case, the guide member 41 is attached to the first landing door 22 by the component mounting member 51, and the holding member 42 is attached to the second landing door 23 by the component mounting member 51. Further, in this case, the guide member 41 is arranged between the light emitting side sensor unit 31 and the first car door 6, and the pressing member 42 is arranged between the light receiving side sensor unit 32 and the second car door 7. ..

Further, in the above example, the component mounting member 51 is a separate member from the sensor mounting member 35. However, the component mounting member 51 may be a single material integrated with the sensor mounting member 35. By doing so, the number of parts can be reduced, and the manufacturing cost of the door device can be reduced.

Embodiment 6.
FIG. 9 is an enlarged top view showing the door device according to the sixth embodiment of the present invention. The guide member 41 is provided in the light emitting side sensor unit 31. Further, the guide member 41 is attached to the light projecting unit installation surface while avoiding each first light projecting unit 311. Further, the guide member 41 is arranged within the width direction of the light emitting side sensor unit 31 when viewed from above. That is, the guide member 41 is arranged within the range of the light emitting side sensor unit 31 in the depth direction of the car entrance / exit 2 and the landing entrance / exit 21. In this example, the guide member 41 is a separate member from the housing of the light emitting side sensor unit 31.

The pressing member 42 is provided on the light receiving side sensor unit 32. Further, the pressing member 42 is attached to the light receiving portion installation surface while avoiding each first light receiving portion 321. Further, the pressing member 42 is arranged within the width direction of the light receiving side sensor unit 32 when viewed from above. That is, the holding member 42 is arranged within the range of the light receiving side sensor unit 32 in the depth direction of the car entrance / exit 2 and the landing entrance / exit 21. In this example, the pressing member 42 is a separate member from the housing of the light receiving side sensor unit 32.

The pressing member 42 is arranged at a position deviated from the guide member 41 in the depth direction of the car entrance / exit 2 and the landing entrance / exit 21. As a result, the holding member 42 does not interfere with the guide member 41 even when the car entrance / exit 2 and the landing entrance / exit 21 are fully closed. Other configurations are the same as those in the first embodiment.

In such a door device, a guide member 41 is provided in the light emitting side sensor unit 31. Therefore, the guide member 41 can be arranged within the range in the width direction of the light emitting side sensor unit 31. As a result, it is possible to prevent the distance between the first car door 6 and the first landing door 22 from increasing, and it is possible to prevent an increase in the space for the hoistway.

In the above example, the guide member 41 is a separate member from the housing of the light emitting side sensor unit 31. However, the housing of the light emitting side sensor unit 31 and the guide member 41 may be made of a single material. In this way, the light emitting side sensor unit 31 and the guide member 41 can be attached to the first car door 6 at the same time, and the attachment work of the light emitting side sensor unit 31 and the guide member 41 can be facilitated.

Further, in the above example, the pressing member 42 is a separate member from the housing of the light receiving side sensor unit 32. However, the housing of the light receiving side sensor unit 32 and the pressing member 42 may be made of a single material. In this way, the light receiving side sensor unit 32 and the pressing member 42 can be attached to the second car door 7 at the same time, and the attachment work of the light receiving side sensor unit 32 and the pressing member 42 can be facilitated.

Further, in the above example, the light emitting side sensor unit 31 is provided on the first car door 6. However, the light emitting side sensor unit 31 may be provided on the first landing door 22.

Further, in the above example, the light receiving side sensor unit 32 is provided on the second car door 7. However, the light receiving side sensor unit 32 may be provided on the second landing door 23.

Embodiment 7.
FIG. 10 is an enlarged top view showing the door device according to the seventh embodiment of the present invention. The guide member 41 is arranged between the first car door 6 and the light emitting side sensor unit 31. Further, the guide member 41 is attached to the door panel 25 of the first car door 6 in the same manner as in the first embodiment. That is, the guide member 41 is attached to the first car door 6 by the sensor attachment member 35 to which the light emitting side sensor portion 31 is attached.

The pressing member 42 is arranged between the second landing door 23 and the light receiving side sensor unit 32. Further, the pressing member 42 is attached to the door panel 25 of the second car door 7 in the same manner as in the fifth embodiment. That is, the holding member 42 is attached to the door panel 25 of the second car door 7 by a component mounting member 51 that is separate from the sensor mounting member 35.

As a result, the guide member 41 and the pressing member 42 are arranged on opposite sides of each other with respect to the straight line connecting the light emitting side sensor unit 31 and the light receiving side sensor unit 32, that is, the linear first beam path when viewed from above. ing. Other configurations are the same as those in the first embodiment.

In such a door device, the guide member 41 and the pressing member 42 are arranged on opposite sides with respect to the straight line connecting the light emitting side sensor unit 31 and the light receiving side sensor unit 32 when viewed from above. Therefore, it is possible to more reliably prevent the interference between the holding member 42 and the guide member 41 when the car entrance / exit 2 and the landing entrance / exit 21 are fully closed. Further, a first beam path can be set between the guide member 41 and the pressing member 42. Therefore, the long object 100 can be guided to the first beam path of the sensor between the guide member 41 and the pressing member 42. As a result, the long object 100 can be detected more reliably.

In the above example, the guide member 41 is arranged between the light emitting side sensor unit 31 and the first car door 6, and the pressing member 42 is arranged between the light receiving side sensor unit 32 and the second landing door 23. Has been done. However, the positional relationship between the guide member 41 and the pressing member 42 is not limited to this. Therefore, when viewed from above, if the guide member 41 and the pressing member 42 are arranged on opposite sides of the straight line connecting the light emitting side sensor unit 31 and the light receiving side sensor unit 32, the light emitting side sensor unit 31 Guided to either the position between the light emitting side sensor unit 31 and the first car door 6, the position within the width direction of the light emitting side sensor unit 31, and the position between the light emitting side sensor unit 31 and the first landing door 22. The member 41 can be arranged. Further, the position between the light receiving side sensor unit 32 and the second car door 7, the position within the width direction of the light receiving side sensor unit 32, and the position between the light receiving side sensor unit 32 and the second landing door 23. The pressing member 42 can be arranged in any of the above.

Embodiment 8.
FIG. 11 is an enlarged perspective view showing the door device according to the eighth embodiment of the present invention. Further, FIG. 12 is an enlarged front view showing a guide member and a holding member of the door device of FIG. The light projecting side sensor unit 31 includes a plurality of first light projecting units 311 and a plurality of second light projecting units 312, and a housing in which each first light projecting unit 311 and each second light projecting unit 312 are installed. have. The configuration of the housing of the light emitting side sensor unit 31 is the same as that of the first embodiment.

The plurality of first light projecting units 311 and the plurality of second light projecting units 312 are provided on the light projecting unit installation surface of the housing. The plurality of first light projecting units 311 are arranged at intervals from each other in the height direction of the first car door 6 and the first landing door 22. The plurality of second light projecting units 312 are arranged at intervals from each other in the height direction of the first car door 6 and the first landing door 22. In this example, the first light projecting unit 311 and the second light projecting unit 312 are alternately arranged in the height direction of the first car door 6 and the first landing door 22.

The light receiving side sensor unit 32 has a plurality of first light receiving units 321, a plurality of second light receiving units 322, and a housing in which each first light receiving unit 321 and each second light receiving unit 322 are installed. .. The configuration of the housing of the light receiving side sensor unit 32 is the same as that of the first embodiment.

The plurality of first light receiving units 321 and the plurality of second light receiving units 322 are provided on the light receiving unit installation surface of a common housing. The plurality of first light receiving units 321 are arranged at intervals from each other in the height direction of the second car door 7 and the second landing door 23. The plurality of second light receiving units 322 are arranged at intervals from each other in the height direction of the second car door 7 and the second landing door 23. In this example, the first light receiving unit 321 and the second light receiving unit 322 are alternately arranged in the height direction of the second car door 7 and the second landing door 23.

The plurality of first light emitting units 311 and the plurality of first light receiving units 321 individually face each other in the width direction of the car entrance / exit 2. Further, the plurality of second light emitting units 312 and the plurality of second light receiving units 322 individually face each other in the width direction of the car entrance / exit 2. As a result, between the light emitting side sensor unit 31 and the light receiving side sensor unit 32, a plurality of linear first beam paths connecting the first light emitting unit 311 and each first light receiving unit 321 and each first beam path are connected. A plurality of linear second beam paths connecting the two light projecting units 312 and each second light receiving unit 322 are set. Further, the first beam path and the second beam path are set between the car entrance / exit 2 and the landing entrance / exit 21.

Each first beam path is set as a first detection region. Each second beam path is set as a second detection region at a position different from each first detection region. In this example, a plurality of first beam paths and a plurality of second beam paths are alternately arranged in the vertical direction.

The vertical position of each first beam path with respect to the guide member 41 is set with reference to the boundary portion between the first guide surface 412 and the second guide surfaces 413 and 414, as in the first embodiment. The vertical position of each of the second beam paths with respect to the guide member 41 is set to a position farther from the position of the first beam path from the boundary portion between the first guide surface 412 and the second guide surfaces 413 and 414. ..

Each first light emitting unit 311 projects a beam 34 toward each first light receiving unit 321. The beam 34 emitted from each first light projecting unit 311 is received by each first light receiving unit 321 through each first beam path.

Each second light emitting unit 312 projects a beam 36 toward each second light receiving unit 322. The beam 36 emitted from each second light projecting unit 312 is received by each second light receiving unit 322 through each second beam path.

The functions of the sensor 33 include a first sensor function for detecting an object entering the first beam path and a second sensor function for detecting an object entering the second beam path. Therefore, the first sensor function of the sensor 33 is a function of detecting an object by the first light emitting unit 311 and the first light receiving unit 321. The second sensor function of the sensor 33 is a function of detecting an object by the second light emitting unit 312 and the second light receiving unit 322.

The lower limit of the size of the object that can be detected by the first sensor function is smaller than the lower limit of the size of the object that can be detected by the second sensor function. That is, the sensor 33 can detect an object smaller in the first sensor function than in the second sensor function. The sensor 33 detects a thin and long object 100 by the first sensor function, and detects a large object by the second sensor function. As a large object, a person, luggage, etc. can be considered.

In this example, the diameter of the beam 34 emitted from each of the first light emitting units 311 is narrowed down to be smaller than the diameter of the beam 36 emitted from each of the second light emitting units 312. Further, in this example, the intensity of the beam 34 emitted from the first light projecting unit 311 is adjusted to be different from the intensity of the beam 36 emitted from the second light projecting unit 312. Further, in this example, the light receiving sensitivity of the first light receiving unit 321 is adjusted to be different from the light receiving sensitivity of the second light receiving unit 322. As a result, the appropriate distance between the light emitting side sensor unit 31 and the light receiving side sensor unit 32 when the object is detected by the first sensor function is determined by the light emitting side sensor unit when the object is detected by the second sensor function. It is shorter than the proper distance between 31 and the light receiving side sensor unit 32.

When a long object 100 enters the first beam path, the beam 34 passing through the first beam path containing the object 100 is blocked by the object 100. As a result, the long object 100 is detected by the sensor 33.

When a large object such as a person enters the second beam path, the beam 36 passing through the second beam path containing the large object is blocked by the object. As a result, a large object is detected by the sensor 33.

When the object is detected, the sensor 33 sends information indicating whether or not the object is detected by each of the first sensor function and the second sensor function to the door control unit 20. The door control unit 20 has a first car door 6, a second car door 7, a first landing door 22, and a second landing door 23 based on the presence or absence of detection of an object by each of the first sensor function and the second sensor function. Control the movement of. Other configurations are the same as those in the first embodiment.

In such a door device, the lower limit of the size of the object that can be detected by the first sensor function is smaller than the lower limit of the size of the object that can be detected by the second sensor function. Therefore, it is possible to distinguish between a thin long object such as a string and a large object such as a person, and it is possible to perform different control according to each of the thin long object and the large object. .. Further, the long object 100 guided by the guide member 41 to the first beam path can be detected more reliably by the first sensor function.

Further, a plurality of first beam paths and a plurality of second beam paths are set between the light emitting side sensor unit 31 and the light receiving side sensor unit 32, respectively. Therefore, the sensor 33 can have two types of functions, a first sensor function and a second sensor function, by one combination of the light emitting side sensor unit 31 and the light receiving side sensor unit 32. As a result, it is possible to prevent the installation space of the light emitting side sensor unit 31 and the light receiving side sensor unit 32 from expanding while providing the sensor 33 with two types of functions.

Embodiment 9.
The configuration of the door device according to the present embodiment is the same as the configuration of the eighth embodiment shown in FIGS. 11 and 12, except for the control of the door control unit 20. The moving section from the fully open position to the fully closed position of the first car door 6, the second car door 7, the first landing door 22, and the second landing door 23, that is, the opening / closing movement section of the door is the detection section of the first sensor function. And the detection section of the second sensor function. The detection section of the first sensor function is set on the door closed side of the detection section of the second sensor function. In this example, the detection section of the first sensor function is a section of 20 mm from the fully closed position to the door opening side. The detection section of the second sensor function is a section excluding the detection section of the first sensor function from the opening / closing movement section of the door.

When the door is in the detection section of the first sensor function, the door control unit 20 determines the first car door 6, the second car door 7, and the first landing door based on the presence or absence of detection of an object by the first sensor function. Controls the movement of 22 and the second landing door 23. Further, when the door is in the detection section of the second sensor function, the door control unit 20 has the first car door 6, the second car door 7, and the first car door 6, based on the presence or absence of detection of an object by the second sensor function. Controls the movement of the landing door 22 and the second landing door 23. That is, the door control unit 20 performs either the first sensor function or the second sensor function based on the positions of the first car door 6, the second car door 7, the first landing door 22, and the second landing door 23. The movement of the first car door 6, the second car door 7, the first landing door 22, and the second landing door 23 is controlled based on the information on whether or not the object is detected by the selected function.

FIG. 13 is a flowchart showing the processing of the door control unit of the door device according to the ninth embodiment of the present invention. When controlling the closing operation of the door, the door control unit 20 determines in step S1 whether or not the position of the door is in the fully open position.

If it is determined in step S1 that the door position is not in the fully open position, the door control unit 20 repeats determining whether or not the door position is in the fully open position. On the other hand, if it is determined in step S1 that the door position is in the fully open position, the process proceeds to step S2.

In step S2, the door control unit 20 determines whether or not an object is detected by the second sensor function of the sensor 33.

If it is determined in step S2 that the object has been detected by the second sensor function, the process proceeds to step S3. On the other hand, in step S2, if the object is not detected by the second sensor function, the process proceeds to step S4.

In step S3, the door control unit 20 opens the door. After this, the process returns to step S1.

In step S4, the door control unit 20 starts the door closing operation. After this, the process proceeds to step S5.

In step S5, the door control unit 20 determines whether or not the position of the door is within the detection section of the first sensor function.

If it is determined in step S5 that the position of the door is not within the detection section of the first sensor function, the process returns to step S2. As a result, the door control unit 20 repeats each process of step S2, step S4, and step S5 until the position of the door falls within the detection section of the first sensor function.

If it is determined in step S5 that the position of the door is within the detection section of the first sensor function, the process proceeds to step S6.

In step S6, the door control unit 20 determines whether or not an object is detected by the first sensor function of the sensor 33.

If it is determined in step S6 that the object has been detected by the first sensor function, the process proceeds to step S3. As a result, the door control unit 20 reverses the movement of the door and controls the opening operation of the door. On the other hand, if it is determined in step S6 that the object is not detected by the first sensor function, the process proceeds to step S7.

In step S7, the door control unit 20 determines whether or not the door position is in the fully closed position. If it is determined that the door position is not in the fully closed position, the process returns to step S6. As a result, the door control unit 20 repeats the process of step S6 and the process of step S7 until the door position is fully closed. On the other hand, if it is determined that the door position is in the fully closed position, the process returns to step S1.

In such a door device, either the first sensor function or the second sensor function of the sensor 33 is selected based on the position of the door, and based on the information on whether or not an object is detected by the selected function, the door Movement is controlled. Therefore, for example, the long object 100 can be detected by the first sensor function of the sensor 33 at the position of the door where a large object is unlikely to pass through the car entrance 2 and the landing entrance 21. As a result, the malfunction of the sensor 33 can be reduced.

In the above example, the length of the detection section of the first sensor function and the length of the detection section of the second sensor function are fixed lengths, respectively. However, the length of the detection section of the first sensor function and the length of the detection section of the second sensor function may be variable. Further, a part of the detection section of the first sensor function may be overlapped with the detection section of the second sensor function.

Further, in the above example, either the first sensor function or the second sensor function of the sensor 33 is selected based on the position of the door, and the door control unit 20 is controlled based on the selected function. However, the detection condition in which the sensor 33 detects an object by the first sensor function and the detection condition in which the sensor 33 detects an object by the second sensor function may be different from each other.

For example, the time required for an object to be detected by the first sensor function after entering the first beam path and the time required for the object to be detected by the second sensor function after entering the second beam path. Time may be different from each other. Further, for example, the number of beams 34 blocked by the object to detect the object by the first sensor function and the number of beams 36 blocked by the object to detect the object by the second sensor function are made different from each other. You may. In this way, the malfunction of the sensor 33 can be reduced by making the detection condition that the sensor 33 detects the object by the first sensor function and the detection condition that the sensor 33 detects the object by the second sensor function different from each other. be able to.

Embodiment 10.
The configuration of the door device according to the present embodiment is the same as the configuration of the first embodiment except for the control of the door control unit 20. The information from the door control unit 20 is sent to the elevator control device that controls the operation of the elevator. The elevator control device controls the movement of the car 1 based on the information from the door control unit 20.

The door control unit 20 outputs a door fully closed signal to the elevator control device when the car entrance 2 and the landing entrance 21 are fully closed. When the door fully closed signal from the door control unit 20 is sent to the elevator control device, the car 1 can be moved by the control of the elevator control device.

Further, the door control unit 20 outputs a stop signal for stopping the car to the elevator control device when the sensor 33 detects the long object 100 after the movement of the car 1 is started by the control of the elevator control device. When the stop signal from the door control unit 20 is sent to the elevator control device, the car 1 is stopped in an emergency under the control of the elevator control device.

FIG. 14 is a flowchart showing the processing of the door control unit of the door device according to the tenth embodiment of the present invention. In step S11, the door control unit 20 determines whether or not the car 1 is moving based on the information from the elevator control device.

If it is determined in step S11 that the car 1 is not moving, the door control unit 20 repeats the determination of whether or not the car 1 is moving. On the other hand, if it is determined in step S11 that the car 1 is moving, the process proceeds to step S12.

In step S12, the door control unit 20 determines whether or not the sensor 33 has detected the long object 100.

If it is determined in step S12 that the sensor 33 has detected the object 100, the process proceeds to step S13. On the other hand, if it is determined in step S12 that the sensor 33 has not detected the object 100, the process proceeds to step S14.

In step S13, the door control unit 20 outputs a stop signal for stopping the movement of the car 1 to the elevator control device. As a result, the movement of the car 1 is stopped in an emergency under the control of the elevator control device.

In step S14, the door control unit 20 determines whether or not the set time X has elapsed after the start of movement of the car 1. The set time X is, for example, several seconds.

If it is determined in step S14 that the set time X has not elapsed, the door control unit 20 repeats the process of step S12 and the process of step S14 until the set time X elapses. On the other hand, if it is determined in step S14 that the set time X has elapsed, the process returns to step S11.

In such a door device, when the sensor 33 detects the object 100 after the start of the movement of the car 1, the door control unit 20 outputs a stop signal for stopping the car 1. Therefore, even if the movement of the car 1 is started while the long object 100 straddles the car entrance 2 and the landing entrance 21, the long object 100 moves with the movement of the car 1. This makes it possible for the sensor 33 to detect the long object 100. As a result, it is possible to prevent the movement of the car 1 from being continued as it is, and it is possible to prevent the elevator from malfunctioning.

In the above example, after the movement of the car 1 is started, the door control unit 20 that outputs a stop signal for stopping the car 1 when the sensor 33 detects the long object 100 is controlled by the door according to the first embodiment. It is applied to the device. However, the control of the door control unit 20 that outputs a stop signal for stopping the car 1 when the sensor 33 detects the long object 100 after the start of the movement of the car 1 is applied to the door device according to the second to ninth embodiments. You may.

Further, in the first, second, fifth to tenth embodiments, the light emitting side sensor unit 31 is provided in the first car door 6, and the light receiving side sensor unit 32 is provided in the second car door 7. However, the light receiving side sensor unit 32 may be provided in the first car door 6, and the light emitting side sensor unit 31 may be provided in the second car door 7.

Further, in each of the above-described embodiments, a double door device in which the first car door and the first landing door and the second car door and the second landing door move in opposite directions to each other has been described. However, the same effect can be obtained even with a single-door door device in which the first car door, the second car door, the first landing door, and the second landing door move in the same direction.

1 car, 2 car doorways, 6 1st car door, 20 door control unit, 22 1st landing door, 31 floodlight side sensor unit (1st sensor unit), 32 light receiving side sensor unit (2nd sensor unit), 33 Sensor, 41 guide member, 42 holding member, 414 second guide surface (lower end inclined surface) at the lowest position, 100 objects.

Claims (13)

The first car door that opens and closes the car doorway,
A first landing door that opens and closes the landing entrance by moving together with the first car door while facing the first car door.
A sensor that detects an object that has entered the first detection area,
Arranged between the first car door and the first landing door, and arranged in the height range of the first car door and the first landing door, the direction in which the car entrance and the landing entrance are closed. The guide member that guides the car entrance / exit and the object straddling the landing entrance / exit to the first detection region by moving together with the first car door and the first landing door, and the information from the sensor. A door device including a door control unit that controls the movement of the first car door and the first landing door. The sensor has a first sensor unit arranged between the first car door and the first landing door.
The door device according to claim 1, wherein the guide member is arranged between the first car door and the first sensor unit. The sensor has a first sensor unit arranged between the first car door and the first landing door.
The door device according to claim 1, wherein the guide member is arranged between the first landing door and the first sensor unit. The first sensor unit is attached to the first car door or the first landing door by a sensor mounting member.
The door device according to claim 2 or 3, wherein the guide member is provided on the sensor mounting member. The sensor has a first sensor unit arranged between the first car door and the first landing door.
The door device according to claim 1, wherein the guide member is provided in the first sensor unit. The guide member is provided with a holding member that holds the long object when the first car door and the first landing door are at a fully closed position that fully closes the car entrance / exit and the landing entrance / exit.
The door device according to any one of claims 1 to 5, wherein the holding member is arranged at a position deviated from the guide member in the depth direction of the car entrance / exit and the landing entrance / exit. The sensor faces the first sensor unit arranged between the first car door and the first landing door, and the first sensor unit in the moving direction of the first car door and the first landing door. Has a second sensor unit
The first detection region is set between the first sensor unit and the second sensor unit.
The door device according to claim 6, wherein the guide member and the holding member are arranged on opposite sides with respect to a straight line connecting the first sensor portion and the second sensor portion when viewed from above. A lower end inclined surface is formed at the lower end of the guide member.
The lower end inclined surface is the first detection above the lower end inclined surface by moving the guide member together with the first car door and the first landing door in a direction in which the car entrance / exit and the landing entrance / exit are closed. The door device according to any one of claims 1 to 7, which guides the long object to the region. The function of the sensor includes a first sensor function for detecting an object in the first detection area and a second sensor function for detecting an object in a second detection area different from the first detection area. Re,
The lower limit of the size of the object that can be detected by the first sensor function is smaller than the lower limit of the size of the object that can be detected by the second sensor function.
The door control unit controls the movement of the first car door and the first landing door based on the information on the presence / absence of detection of an object by each of the first sensor function and the second sensor function. The door device according to any one of claims 8. The sensor faces the first sensor unit arranged between the first car door and the first landing door, and the first sensor unit in the moving direction of the first car door and the first landing door. Has a second sensor unit
The door device according to claim 9, wherein each of the first detection region and the second detection region is set between the first sensor unit and the second sensor unit. The door control unit selects either the first sensor function or the second sensor function based on the positions of the first car door and the first landing door, and whether or not an object is detected by the selected function. The door device according to claim 9 or 10, wherein the movement of the first car door and the first landing door is controlled based on the information of the above. The door device according to claim 9 or 10, wherein the condition for the sensor to detect an object by the first sensor function and the condition for the sensor to detect an object by the second sensor function are different from each other. The door control unit according to any one of claims 1 to 12, which outputs a stop signal for stopping the car when the sensor detects an object after the car starts moving. Door device.

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