JP6570754B2 - Elevator car handrail device - Google Patents

Description

  The present invention relates to an elevator car handrail device provided at an upper portion of a car.

  Conventionally, a safety fence is assembled on a car by rotating a bar member attached to one side fence member and engaging and holding the bar member to an engagement holding portion of the other side fence member. Elevator is known. In such a conventional elevator, in order to detect that the assembly of the safety fence has been completed, the detection switch for detecting that the bar member and the engagement holding part are engaged and held is provided on the other side fence. It is attached to the engagement holding part of a member (for example, refer patent document 1).

JP 2009-214957 A

  However, in the elevator safety fence shown in Patent Document 1, for example, when the position of the detection switch is shifted, the detection switch is not connected to the bar even if the engagement between the bar member and the engagement holding portion is incomplete. There is a risk of detecting the member.

  The present invention has been made to solve the above-described problems, and an object of the present invention is to provide an elevator car handrail device that can more reliably detect completion of assembly.

  The elevator car handrail device according to the present invention is pivotally attached to a pair of first car upper handrails provided on the upper part of the car and one of the first car upper handrails, and the other first car handrail device. A second car upper handrail having a movable connecting beam that can be attached to and detached from the first car upper handrail, and the movable connecting beam engages with both the movable connecting beam and the other first car upper handrail. It is attached to the other first car upper handrail by the joint member, and the engagement member is detached from each of the movable connecting beam and the other first car upper handrail, thereby coming off from the other first car upper handrail. A detection switch is attached to the other first handrail of the car, and the engagement member is integrated with a key for operating the detection switch, and the movable connecting beam is connected to the other by the engagement member. Take the first car handrail By attached, the detection switch is actuated by the key.

  According to the elevator car handrail device of the present invention, the detection switch can be prevented from operating unless the movable connecting beam is attached to the other first car handrail by the engaging member. Thereby, it can detect more reliably that the assembly of the car handrail device is completed.

1 is a perspective view showing an elevator car handrail device according to Embodiment 1 of the present invention; FIG. It is a perspective view which shows the handrail apparatus on a cage when each movable handrail member of FIG. 1 exists in a fall position. It is a perspective view which shows the elevator handrail apparatus of an elevator when the movable connection beam of FIG. 1 exists in an accommodation position. It is an expansion perspective view which shows the IV section of FIG. It is an expansion perspective view which shows the integral component of FIG. It is a perspective view which shows the other example of the elevator car handrail apparatus by Embodiment 1 of this invention.

Embodiments of the present invention will be described below with reference to the drawings.
Embodiment 1 FIG.
1 is a perspective view showing an elevator car handrail device according to Embodiment 1 of the present invention. The car 1 has a car body 2 and a car frame 3 that supports the car body 2.

  A car doorway (not shown) is provided in front of the car body 2. The front / rear direction of the car entrance / exit coincides with the width direction of the car body 2. The car frame 3 includes a car frame body 4 that surrounds the car body 2, and a rectangular upper fixing frame 5 that is fixed to the top of the car frame body 4 and disposed horizontally above the car body 2. Yes. The upper fixed frame 5 surrounds a set work range set on the upper surface of the car body 2 when viewed from above.

  The car 1 moves up and down in the hoistway by the driving force of a hoisting machine that is a driving device (not shown). The operation of the elevator is controlled by a control device (not shown) installed in the hoistway. Further, the operation of the elevator can be switched between a normal operation mode in which a normal service operation is performed and a maintenance operation mode in which the car 1 is moved at a lower speed than in the normal operation mode.

  In the elevator, an operator may perform maintenance / inspection work on the equipment in the hoistway in a state where the worker gets on the upper surface of the car body 2. On the upper surface of the car body 2, a car operation section for maintenance (not shown) is provided. An operator riding on the upper surface of the car body 2 operates the on-car operation unit during maintenance in the maintenance operation mode in order to move the car 1 at a low speed.

  At the upper part of the car 1, there is provided a car handrail device 6 that ensures the safety of an operator who rides on the upper surface of the car body 2. The car upper handrail device 6 is provided on the upper fixed frame 5 of the car 1. Further, the car upper handrail device 6 is connected between the pair of side handrails 7 as a pair of first car upper handrails disposed on both sides in the width direction of the car main body 2 and the pair of side handrails 7. 2 and a rear handrail 8 that is a second car upper handrail arranged along the rear surface.

  Each side handrail 7 has a fixed handrail member 9 fixed to the car 1 in a state of projecting upward from the car 1, and a movable handrail member 10 provided rotatably on the fixed handrail member 9. Yes.

  Each fixed handrail member 9 has a plurality of fixed handrail columns 91 fixed to the car frame 3 and a plurality of fixed handrail beams 92 fixed to the plurality of fixed handrail columns 91. The plurality of fixed handrail columns 91 are arranged in the depth direction of the car 1 when viewed from above. Each fixed handrail beam 92 is arranged along the direction in which the plurality of fixed handrail beams 92 are arranged.

  Each movable handrail member 10 includes a plurality of movable handrail columns 101 rotatably attached to the respective fixed handrail columns 91, a movable handrail beam 102 fixed to the plurality of movable handrail columns 101, and a movable handrail beam. And a rear handrail support fitting 103 which is a beam support member fixed to 102. The plurality of movable handrail pillars 101 are arranged in accordance with the positions of the plurality of fixed handrail pillars 91 in the depth direction of the car 1. The movable handrail beam 102 is disposed along the direction in which the plurality of movable handrail columns 101 are arranged. The rear handrail support bracket 103 is fixed to the end of the movable handrail beam 102 on the rear side of the car 1.

  Each movable handrail member 10 is rotated with respect to the fixed handrail member 9, so that a standing position where the movable handrail member 10 stands with respect to the fixed handrail member 9 and a fall position where the movable handrail member 10 falls to the inside of the car 1 with respect to the fixed handrail member 9. Displaced between.

  The rear handrail 8 has a fixed connection beam 81 and a movable connection beam 82. The fixed connection beam 81 is connected between the fixed handrail members 9 of the pair of side handrails 7. That is, one end portion of the fixed connection beam 81 is fixed to the fixed handrail column 91 of the one side rail 7 and the other end portion of the fixed connection beam 81 is fixed to the fixed handrail column 91 of the other side rail 7.

  The movable connecting beam 82 can be connected between the movable handrail members 10 of the pair of side handrails 7. The movable connecting beam 82 is rotatably attached to one of the movable handrail members 10 of the pair of side handrails 7 and can be attached to and detached from the other movable handrail member 10. ing. Further, the movable connecting beam 82 rotates from one movable handrail member 10 by rotating with respect to one movable handrail member 10 when each movable handrail member 10 of the pair of side handrails 7 is in the standing position. It is displaced between the connecting position reaching the other movable handrail member 10 and the accommodating position held away from the other movable handrail member 10 by one. FIG. 1 shows a state where the movable connecting beam 82 is arranged at the connecting position.

  FIG. 2 is a perspective view showing the elevator car handrail device 6 when the movable connecting beam 82 of FIG. 1 is in the storage position. When the movable connecting beam 82 is in the storage position, the movable connecting beam 82 is parallel to the movable handrail beam 102 of one movable handrail member 10. Each movable handrail member 10 can be displaced between the standing position and the collapsed position when the movable connecting beam 82 is in the storage position.

  One end of the movable connecting beam 82 is attached to the rear handrail support fitting 103 of one movable handrail member 10 via a support shaft 104. Thereby, the movable connecting beam 82 is rotated around the support shaft 104 with respect to one movable handrail member 10. The movable connecting beam 82 is attached to the rear handrail support fitting 103 so as not to be detached from the one movable handrail member 10.

  As shown in FIG. 2, a handrail side engagement hole 105 is provided in the rear handrail support bracket 103 of the other movable handrail member 10. A connecting beam side engagement hole 83 is provided at the other end of the movable connecting beam 82. In this example, the inner diameter of the connecting beam side engaging hole 83 is the same as the inner diameter of the handrail side engaging hole 105. The connection beam side engagement hole 83 reaches a position overlapping the handrail side engagement hole 105 when the movable connection beam 82 reaches the connection position.

  FIG. 3 is a perspective view showing the car handrail device 6 when each movable handrail member 10 of FIG. 1 is in the collapsed position. When each movable handrail member 10 is in the collapsed position, the movable connecting beam 82 is held in the storage position. In each side handrail 7, the movable handrail member 10 is supported by the fixed handrail beam 92, so that the position of the movable handrail member 10 is maintained at the collapsed position, and the movable connection beam is provided between the movable handrail members 10 of the pair of side handrails 7. By connecting 82, the position of the movable handrail member 10 is maintained in the standing position.

  FIG. 4 is an enlarged perspective view showing the IV part of FIG. 1. In a state where the movable connecting beam 82 has reached the connecting position, the engaging pin 21 as an engaging member is inserted into the handrail side engaging hole 105 and the connecting beam side engaging hole 83, so that the movable connecting beam 82 is It is attached to the other movable handrail member 10. In a state where the engaging pin 21 is inserted into the handrail side engaging hole 105 and the connecting beam side engaging hole 83, the engaging pin 21 is engaged with both the movable connecting beam 82 and the back handrail support fitting 103. ing. That is, the movable connecting beam 82 is attached to the other movable handrail member 10 by the engaging pin 21 that engages with both the movable connecting beam 82 and the other movable handrail member 10.

  In the movable connecting beam 82, the engaging pin 21 is removed from the handrail side engaging hole 105 and the connecting beam side engaging hole 83, and the engaging pin 21 is inserted from each of the movable connecting beam 82 and the other movable handrail member 10. By disengaging, the other movable handrail member 10 is disengaged.

  A detection switch 22 is attached to the support rail 103 for the back handrail of the other movable handrail member 10. The detection switch 22 is provided with a key insertion hole 23. The depth direction of the key insertion hole 23 coincides with the depth direction of the handrail side engagement hole 105 provided in the rear handrail support fitting 103. The insertion port of the key insertion hole 23 of the detection switch 22 is located below the insertion port of the handrail side engagement hole 105. The detection switch 22 operates when the key 24 is inserted into the key insertion hole 23. In this example, the key 24 has a plate shape.

  When the detection switch 22 is activated, a detection signal is output from the detection switch 22 to the control device. When the control device receives the detection signal from the detection switch 22, the car 1 can be moved by the control of the control device in accordance with the operation of the operation unit on the car during maintenance. When the key 24 is removed from the detection switch 22, the operation of the detection switch 22 is stopped, and the output of the detection signal from the detection switch 22 is stopped. When the output of the detection signal from the detection switch 22 to the control device is stopped, the control device is controlled so that the car 1 does not move even if the operation unit on the car for maintenance is operated.

  The engagement pin 21 is integrated with the key 24 via the base member 25. As a result, an integral part 26 in which the engagement pin 21, the key 24, and the base member 25 are integrated is configured.

  FIG. 5 is an enlarged perspective view showing the integral part 26 of FIG. The engaging pin 21 and the key 24 are respectively fixed to the base member 25 in a state of being separated from each other. In this example, the base member 25 is an L-shaped plate in which the first plate portion and the second plate portion are formed orthogonally, and the engagement pin 21 is fixed to the first plate portion. A key 24 is fixed to the two plate portions. The key 24 is disposed along the longitudinal direction of the engagement pin 21. Thereby, the key 24 and the engaging pin 21 are mutually parallel. The distance between the engagement pin 21 and the key 24 is set according to the distance between the handrail side engagement hole 105 and the key insertion hole 23.

  In a state where the movable connecting beam 82 is in the connecting position, the key 24 is inserted into the key insertion hole 23 by inserting the engaging pin 21 into the handrail side engaging hole 105 and the connecting beam side engaging hole 83. The detection switch 22 operates when the key 24 is inserted into the key insertion hole 23. That is, the detection switch 22 is operated by the key 24 when the movable connecting beam 82 is attached to the other movable handrail member 10 by the engagement pin 21.

  The key 24 is removed from the key insertion hole 23 when the engagement pin 21 is removed from the handrail side engagement hole 105 and the connecting beam side engagement hole 83. That is, the operation of the detection switch 22 by the key 24 is stopped when the engaging pin 21 is disengaged from the movable connecting beam 82 and the other movable handrail member 10.

  The state of the car upper handrail device 6 becomes an assembly state when the movable handrail members 10 of the respective side handrails 7 reach the standing position and the movable connecting beams 82 are connected between the movable handrail members 10. 82 is removed from the other movable handrail member 10 and held in the storage position, and the respective movable handrail members 10 of the respective side handrails 7 reach the collapsed position to be in a folded state. The height of the car upper handrail device 6 when in the assembled state is higher than the height of the car upper handrail device 6 when in the folded state.

  Next, an elevator maintenance / inspection procedure will be described. The service operation of the elevator is performed in the normal operation mode. When the elevator is operated in the normal operation mode, the car upper handrail device 6 is in a folded state. At this time, the respective movable handrail members 10 of the respective side handrails 7 are held at the fall positions, and the movable connecting beam 82 is held by one of the movable handrail members 10 at the storage position.

  When the operator performs maintenance and inspection work on the upper surface of the car body 2, for example, the operation panel is operated at the hall on the top floor to switch the elevator operation mode from the normal operation mode to the maintenance operation mode. Stop the car 1 so that the upper surface of 2 matches the height of the floor of the hall, and open the hall entrance on the top floor.

  Thereafter, the operator lifts each movable handrail member 10 from the landing on the top floor, and displaces the position of each movable handrail member 10 from the fall position to the standing position. Thereafter, the worker rides on the upper surface of the car body 2, rotates the movable connecting beam 82 from one movable handrail member 10 toward the other movable handrail member 10, and moves the movable connecting beam 82 to the other movable handrail member. Attach to 10. Thereby, the movable connection beam 82 is connected between the movable handrail members 10, and the state of the car upper handrail device 6 becomes the assembled state.

  When the movable connecting beam 82 is attached to the other movable handrail member 10, the engaging pin 21 of the integrated part 26 is inserted into the handrail side engaging hole 105 while the movable connecting beam 82 is held at the connecting position. As a result, the key 24 of the integrated component 26 is inserted into the key insertion hole 23. When the engagement pin 21 is inserted into the handrail side engagement hole 105 and the key 24 is inserted into the key insertion hole 23, the movable connecting beam 82 is attached to the other movable handrail member 10, and the detection switch 22 is activated. When the detection switch 22 is activated, a detection signal is output from the detection switch 22 to the control device, and the car 1 can be moved by operating the operation unit on the car during maintenance.

  Thereafter, the operator closes the open hall entrance, and then operates the on-car operation unit for maintenance to move the car 1 at a low speed. Thereby, the maintenance inspection work with respect to the apparatus in a hoistway is attained.

  When the worker on the upper surface of the car body 2 finishes the maintenance and inspection work for the equipment in the hoistway, the car 1 is moved downward at a low speed while operating the operation unit on the car during maintenance, and the upper surface of the car body 2 is moved. For example, the car 1 is stopped so as to match the floor height of the hall on the top floor.

  Thereafter, the operator removes the integrated component 26 from the movable connecting beam 82 and the other movable handrail member 10. Thereby, the attachment state of the movable connection beam 82 to the other movable handrail member 10 is released, and the output of the detection signal from the detection switch 22 is stopped. Thereafter, the movable connection beam 82 is rotated from the connection position to the accommodation position, and the movable connection beam 82 is held by one movable handrail member 10. Thereafter, the worker opens the hall entrance on the top floor and transfers from the upper surface of the car body 2 to the hall on the top floor.

  Thereafter, the operator displaces each movable handrail member 10 from the standing position to the fall position from the landing on the top floor. Thereby, the state of the car upper handrail device 6 becomes the folded state. Thereafter, the elevator maintenance and inspection work is completed by closing the landing doorway.

  In such an elevator car handrail device 6, since the key 24 for operating the detection switch 22 is integrated with the engagement pin 21, the movable connection beam 82 is connected to the other movable handrail member 10 with the engagement pin 21. If not attached, the detection switch 22 can be prevented from operating. Thereby, the malfunctioning of the detection switch 22 when the mounting state of the movable connecting beam 82 to the other movable handrail member 10 is incomplete can be prevented, and the assembly of the car handrail device 6 has been completed. Can be detected more reliably.

  Further, the engagement pin 21 is inserted into the handrail side engagement hole 105 and the connection beam side engagement hole 83, whereby the movable connection beam 82 is attached to the other movable handrail member 10, and the key 24 is inserted into the key insertion hole 23. Since the detection switch 22 is operated by being inserted, the detection switch 22 can be operated more reliably when the movable connecting beam 82 is attached to the other movable handrail member 10 with the engagement pin 21.

  In the above example, the movable handrail member 10 is rotatably attached to the fixed handrail member 9 fixed to the car frame 3. However, the present invention is not limited to this, and the movable handrail member is eliminated without the fixed handrail member 9. 10 may be rotatably attached to the car frame 3. Further, the movable handrail member 10 may be eliminated, and the movable connection beam 82 may be connected between the pair of fixed handrail members 9.

  In the above example, the engaging pin 21, the key 24, and the base member 25 constituting the integrated component 26 are separate members. However, the engaging pin 21, the key 24, and the base member 25 are provided as a plurality of parts. A single member such as a molded body may be an integral part.

  In the above example, the integral part 26 including the engagement pin 21, the key 24, and the base member 25 is not connected to the movable connecting beam 82. However, as shown in FIG. The integral part 26 may be connected via In this case, the length of the cord-like body 11 is set to a certain length. In this way, the range of movement of the integral part 26 relative to the movable connecting beam 82 can be limited by the cord-like body 11. Thus, when the movable connecting beam 82 is in the connecting position, the engaging pin 21 and the key 24 can be inserted into the handrail side engaging hole 105 and the key inserting hole 23, respectively, and the movable connecting beam 82 is on the other side. When the movable handrail member 10 is disengaged, the engagement pin 21 and the key 24 can be prevented from reaching the handrail side engagement hole 105 and the key insertion hole 23 by the cord-like body 11, and the detection switch 22 is erroneously operated. The operation can be prevented more reliably. Further, the rope-like body 11 can prevent the integral part 26 from falling. For example, a wire, a rope, a belt, a chain, or the like is used as the cord-like body 11 that connects the integrated part 26 and the movable connecting beam 82.

Claims (3)

A pair of first car upper handrails provided on the upper part of the car, and attached to one of the first car upper handrails so as to be rotatable, and attached to and detached from the other first car upper handrail A second handrail with a movable connecting beam,
The movable connecting beam is attached to the other first car upper handrail by an engaging member that engages with both the movable connecting beam and the other first car upper handrail, and the engaging member is The movable connecting beam and the other first car upper handrail are disengaged from the other first car upper handrail,
A detection switch is attached to the other first car handrail,
The engagement member is integrated with a key for operating the detection switch,
An elevator car handrail device in which the detection switch is actuated by the key when the movable connecting beam is attached to the other first car handrail by the engaging member. A handrail side engagement hole is provided in the other first car handrail,
The movable connecting beam is provided with a connecting beam side engagement hole,
The detection switch is provided with a key insertion hole,
When the engaging member is inserted into the handrail side engaging hole and the connecting beam side engaging hole, the movable connecting beam is attached to the other first car upper handrail,
The elevator car handrail device according to claim 1, wherein the detection switch is activated when the key is inserted into the key insertion hole.   3. The elevator car handrail device according to claim 1, wherein an integral part formed by integrating the engaging member and the key is connected to the movable connecting beam via a cord-like body. .

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