JPWO2018037613A1 - Elevator equipment - Google Patents

Abstract

Provided is an elevator device that can easily unlock a car door lock device from a landing side even when electricity cannot be supplied during a power failure or the like. A car door (15, 16), an engaged body (21) connected to the car door, an engaging body (18) engaged with the engaged body, and an electromagnetic device (19) for driving the engaging body by electromagnetic force And when the car is not in the car door openable / closable area in the hoistway, the engaged body is engaged with the engaging body and the car door is locked, and when the car door is in the car door openable / closable area, An unlocking body (22) having a configuration in which the engagement body is driven by the electromagnetic device and the car door is unlocked, and the engagement body can be driven by contacting the engagement body, and one end is connected to the unlocking body. An unlocking device actuating body (23) whose other end is guided to the outer surface of the car door, and operating the unlocking device actuating body from the outside of the car to disengage the unlocking body and the engaging body. It is configured to be able to drive and unlock the car door.

Description

  The present invention relates to an elevator apparatus provided with a car door lock device.

  As background art of this technical field, there is the following Patent Document 1. In Patent Document 1, in an elevator having a landing and a car each having a door and having 3 or more stop floors, the unlocking fixing provided on the landing door and on the car side is provided. A landing door lock device that is unlocked by a cam, a car door lock device that is provided on the car door and that is locked when the car is running, and an engagement that integrally opens and closes the landing door and the car door. The elevator door device is characterized in that a landing unlocking zone of the landing door is set in the engagement zone of the engaging device.

JP-A-2-89793

  The car door lock device in the elevator apparatus described in Patent Document 1 operates by an electrical signal such as an electromagnetic solenoid or an electric motor. For this reason, for example, when it becomes impossible to supply electricity such as a power failure and an electric signal cannot be given to the door lock device, there is a problem that the door lock device cannot be operated (unlocked). It was. Patent Document 1 does not disclose a configuration capable of unlocking a car door lock device even in a state where electricity cannot be supplied during a power failure or the like.

  Therefore, in view of the above circumstances, the present invention provides an elevator device that can easily unlock the car door lock device from the landing side even when electricity cannot be supplied during a power failure or the like. For the purpose.

  In order to solve the above problems, the present invention provides a car door, an engaged body connected to the car door, an engaging body that engages with the engaged body, an electromagnetic device that drives the engaging body by electromagnetic force, When the car is not in the car door openable / closable area in the hoistway during normal times, the car door is locked by the engaged body being engaged with the engaging body, and the car door is in the car door openable / closable area. The engagement body is driven by the electromagnetic device, the engaged body is released from the engagement body, and the car door is unlocked. And an unlocking body capable of driving the engaging body by contacting the engaging body, and an unlocking device operating body having one end connected to the unlocking body and the other end guided to the outer surface of the car door. However, in situations where electricity cannot be supplied, such as during a power outage, the unlocking body and the engaging body can be driven by operating the unlocking device operating body from the outside of the car, and the car door can be unlocked. The configuration.

  More specific configurations of the present invention are described in the claims.

  According to the elevator apparatus according to the present invention, the car door lock device can be easily unlocked from the landing side even when electricity cannot be supplied during a power failure or the like.

  Problems, configurations, and effects other than those described above will become apparent from the following description of embodiments.

It is a schematic diagram which shows an example of the elevator apparatus which concerns on this invention. It is a schematic diagram which expands the periphery of the car door lock device of FIG. It is a schematic diagram which expands the left half of FIG. It is a schematic diagram which shows the operating state of the unlocking apparatus of FIG. It is a schematic diagram which shows the 2nd example of an unlocking device operation body. It is a schematic diagram which shows the 3rd example of an unlocking device operation body.

  Hereinafter, an elevator apparatus according to the present invention will be described in detail with reference to the drawings.

  FIG. 1 is a schematic diagram showing an example of an elevator apparatus according to the present invention. As shown in FIG. 1, an elevator apparatus 100 according to the present invention is connected to a car 5 that moves up and down a hoistway 1, a counterweight 6 that moves up and down together with the car 5, a car 5, and a counterweight 6. A rope (main rope) 2 and a hoisting machine 3 having a sheave 4 around which the rope 2 is wound.

  Both ends of the rope 2 are fixed to the hoistway 1, and an intermediate part of the rope 2 is wound around a sheave 4 of a hoisting machine 3 arranged on the pit (bottom part of the hoistway 1) side. A car 5 is suspended and supported between one end of the rope 2 and the hoisting machine 3 (intermediate part). Further, a counterweight 6 is suspended and supported between the other end of the rope 2 and the hoisting machine 3.

  Car doors 15 and 16 for passengers to get on and off are provided in front of the car 5. When the car stops at each landing floor, it faces a landing door (not shown) provided on each landing floor. Is configured to do. A car door lock device is provided in the upper part of the car doors 15 and 16 and inside the front wall (dotted line portion in FIG. 1) constituting the front of the car 5. Hereinafter, this car door lock device will be described in detail.

  2 is a schematic diagram for enlarging the periphery of the car door lock device of FIG. 1, and FIG. 3 is a schematic diagram for enlarging the left half of FIG. As shown in FIG. 2, the car doors 15, 16 are connected to the car doors 15, 16, and are connected to the car door opening / closing device 40 for opening and closing the car doors 15, 16, and the car door opening / closing device 40. And a car door lock device 50 capable of controlling the opening and closing of the car door (locking and unlocking the car door).

  The car door opening / closing device 40 includes a door machine frame 7, a door motor 8, a belt 9 and a hanger rail 10. A door machine frame 7 is fixed to the upper part of the car doors 15 and 16 on the landing side when viewed from the inside of the car 5. A door motor 8 is attached to the door machine frame 7, and a belt 9 driven by the door motor 8 is folded up and down. A hanger rail 10 is attached to a portion of the door machine frame 7 positioned below the belt 9.

  Hangers 13 and 14 are provided on the upper portions of the car doors 15 and 16, respectively. The hanger 13 is suspended from the upper part of the belt 9 and the hanger 14 is suspended from the lower part of the belt 9. The hanger 13 is provided with a roller 11, and the hanger 14 is provided with a roller 12. The rollers 11 and 12 move left and right while rotating on the hanger rail 10, thereby driving the car doors 15 and 16 left and right. The doors 15 and 16 are opened and closed.

  A car door lock device 50 is provided on the hanger 14. The car door lock device 50 includes a support plate 20 fixed to the hanger 14 of the car door opening / closing device 40, an engaged body (catch portion) 21 attached to the support plate 20, and an engagement with the engaged body 21. It has a combined body 18 and an electromagnetic device (electromagnetic unlocking device) 19 that rotates (rotates) the engaging body 18.

  The engagement body 18 is rotatably supported by a housing 17 provided on the upper portion of the car 5. When the car 5 is not in an area (landing level) where the car doors 15 and 16 can be opened and closed at normal times where electricity can be supplied, the engagement body 18 and the covered body The state in which the engagement body 21 is engaged is maintained, and the car doors 15 and 16 are securely locked so that they cannot be opened. Even if the car doors 15 and 16 are intentionally opened during traveling, the car doors 15 and 16 cannot be opened because the engaging body 18 of the car door locking device 50 is engaged with the engaged body 21.

  On the other hand, when the car 5 reaches an area where the car doors 15 and 16 can be opened and closed, if an instruction of “unlocking” is given to the electromagnetic device 19 as an electric signal, the engagement body 18 is applied by the electromagnetic force of the electromagnetic device 19. Is rotated in the unlocking direction (the clockwise direction in FIGS. 2 and 3), and the engaged body 21 is released from the engaging body 18. Therefore, when the belt 9 is driven by the door motor 8, the car doors 15 and 16 can be opened.

  Although various structures can be employed as the engaging body 18, it is preferable to employ an L-shaped lever as in this embodiment. By making the engaging body 18 an L-shaped lever, the end portion 180 of the engaging body 18 that contacts the engaged body 21 normally contacts the engaged body 21 by its own weight. A rotational force is applied in the direction (locking direction, counterclockwise direction), and the engaging body 18 and the engaged body 21 are firmly engaged. For this reason, for example, even if vibration is applied to the engaging body 18 from the car 5 side, the engaged body 18 and the engaged body 21 can be kept engaged. Therefore, it is possible to reliably prevent malfunction due to vibration or the like.

  Further, in order to maintain the state in which the car 5 is not securely in the region where the car doors 15 and 16 can be opened and closed, the engaged body 21 is securely engaged by the engaging body 18. A position holding spring that applies a force in the direction of contacting the engaged body 21 may be provided on the back side of the end portion that contacts the 21. Also in this case, as described above, the end 180 of the engaging body 18 that contacts the engaged body 21 comes into contact with the engaged body 21 due to its own weight (locking direction, counterclockwise direction). Since the rotational force is applied in the direction), the position holding spring only needs to be able to apply a force in the direction in which the position holding spring comes into contact with the engaged body 21 in an auxiliary manner. Therefore, the position holding spring can be made sufficiently small. . Moreover, the electromagnetic device 19 for releasing the locked state by magnetically attracting the engaging body 18 when receiving the electrical signal is configured to be able to rotate the engaging body 18 against the position holding spring.

  As a standard of the car door lock device 50 in recent years, (1) when the car 5 is not within a predetermined range (for example, ± 1200 mm) with respect to the landing level, the car doors 15 and 16 are opened 30 mm with a force of 1000 N (2) When the car 5 is within the specified range from the landing level in a situation where electricity cannot be supplied, such as during a power failure, do not use a special tool and from the inside of the car 5 There is a standard that can not be opened, but can be opened from the landing side. The car door lock device 50 of the elevator apparatus 100 according to the present invention can be unlocked without supplying electricity as in the prior art in order to satisfy the standard of (2) in addition to the standard of (1). Rather, even in a situation where electricity cannot be supplied, a mechanical system that can mechanically operate from the outside (the landing side) of the car 5 to unlock the door lock and open the car doors 15 and 16. It was set as the structure provided with an unlocking apparatus.

  In this embodiment, the mechanical unlocking device includes an unlocking body 22 that is rotatably supported on a support plate 20 by a rotating shaft 26, one end connected to the unlocking body 22, and the other end outside the car door 16. It has an unlocking device actuating body 23 guided to the landing side, a plurality of guides 24 holding the unlocking device actuating body 23, and a stopper 25 holding the unlocking body 22 in a normal position.

  The end of the unlocking device actuating body 23 on the landing side is guided by the guide 24 to the vicinity of the door stop, and is provided so that an operator at the landing can grasp and pull it. When the unlocking device operating body 23 is pulled, the unlocking body 22 rotates clockwise around the rotation shaft 26, and the end (unlocking side end) 220 of the unlocking body 22 is the end of the engaging body 18 ( The engagement body 18 is rotated in the unlocking direction (clockwise) to release the engaged body 21.

  There are no particular limitations on the unlocking body 22, and various types of structures can be used. However, like the engaging body 18, it is preferable to employ an L-shaped lever. In the present embodiment, the engaging body 18 and the unlocking body 22 are both configured by L-shaped levers, and the end portion 180 that contacts the engaged body 21 of the engaging body 18 and the engaging body 18 of the unlocking body 22 are contacted. It arrange | positions so that the edge part 220 may oppose. In the normal state, the unlocking body 22 has a rotational force applied to the end (unlocking side end) 220 of the unlocking body 22 in the counterclockwise direction by the weight of the unlocking body 22 itself. When the unlocking body 22 comes into contact with the stopper 25, the end 220 of the unlocking body 22 is held at a fixed position. At this time, the end portion 220 of the unlocking body 22 is not in contact with the engaging body 18 and does not affect the operation of the engaging body 18.

  FIG. 4 is a schematic view showing an operating state of the unlocking device operating body of FIG. Even when the car 5 is deviated within a predetermined range from the landing level and stopped when a power failure occurs, the car door lock device 50 can be moved from the landing side by operating the mechanical unlocking device operating body described above. The car doors 15 and 16 can be opened by unlocking.

  The specific procedure is as follows. After opening the landing door from the landing side, the operator grasps the end of the unlocking device actuating body 23 that appears on the landing side as shown in FIG. 4 and pulls it downward. Then, the unlocking device operating body 23 is pulled downward along the plurality of guides 24, and the unlocking body 22 connected to the other end of the unlocking device operating body 23 is centered on the rotation shaft 26. Rotate clockwise.

  By the above operation, the unlocking side end 220 of the unlocking body 22 comes into contact with the locking side end 180 of the engaging body 18 and eventually rotates the engaging body 18 in the unlocking direction, that is, in the clockwise direction. The engaged body 21 is forcibly released from the engagement with the lock-side end portion 180 of the engaging body 18 by the rotation of the engaging body 18. At this time, the mechanical locking of the car doors 15 and 16 by the car door locking device 50 is released, and the engaged body 21 can move to the position shown by the one-dot chain line in FIG. Will be able to open.

  According to such a mechanical unlocking device, the unlocking device actuating body 23 can be operated by remote operation from one end of the landing side of the unlocking device actuating body 23 (the end portion led to the car door 16). The unlocking body 22 connected to one end can be reliably and easily rotated. By the rotation of the unlocking body 22, the locking side end portion 180 of the engaging body 18 can be easily pulled away from the engaged body 21. Moreover, the unlocking operation by the unlocking body 22 can be performed by the operator holding the one end on the landing side of the unlocking device actuating body 23 extended to a position where it can be easily operated on the landing side, and pulling it downward. Even when the car 5 is stopped at a position where the car 5 is slightly shifted up and down from the landing level, the unlocking operation can be easily performed. Thus, when the car 5 is in a position where it is determined that the passenger can safely get off the landing, the car doors 15 and 16 are manually opened from the landing side, and the passengers in the car 5 are removed. You can escape from the car 5.

  The unlocking device actuating body 23 can adopt various configurations, but when a string-like object such as a rope is used, its end is easily guided to the vicinity of the door stop portion of the lower portion of the car door 16. In addition, the other end can be easily connected to the unlocking body 22 so as to give a rotational force in the unlocking direction, and the operator can easily operate the end from the landing side, which is preferable. .

  The following two are mentioned as another aspect of the unlocking device operation body 23. FIG. 5 is a schematic view showing a second example of the unlocking device operating body. As shown in FIG. 5, the unlocking device actuating body 23 ′ includes a plurality of rod-like members (rods) 27 and connecting members 28 that connect the plurality of rod-like members 27, and each rod-like member 27 defines the connecting member 28. It may be configured to be rotatable around the rotation center. FIG. 6 is a view showing a third example of the unlocking device operating body. As shown in FIG. 6, the unlocking device actuating body 23 ″ includes a Z-shaped member 29 and a rotation center 30 provided at the center of the Z-shaped member 29, and the Z-shaped member 29 is rotated. It may be configured to be rotatable around the center 30.

  When the unlocking body 22 is normal, a rotational force is applied in a direction opposite to the unlocking direction (counterclockwise direction) by its own weight, and the unlocking body 22 is held in a standby position (a normal position where the unlocking device does not operate) Therefore, even if vibration is generated in the car 5, the unlocking body 22 does not cause the engaging body 18 to malfunction, and the reliability of the car door lock device 50 can be ensured. In particular, L-shaped levers are used as the engagement body 18 and the unlocking body 22 and are held in their normal positions by their own weights, and the unlocking body 22 and the engagement body 18 are close to each other. If the unlocking side end portion 220 of the unlocking body 22 and the locking side end portion 180 of the engagement body 18 are disposed to face each other, the car door lock device 50 that has a simple configuration and does not malfunction due to vibrations is provided. And a mechanical unlocking device.

  As described above, according to the elevator apparatus according to the present invention, it has been shown that the car door lock device can be easily unlocked from the landing side when the car is stopped during a power failure. .

  In addition, this invention is not limited to the Example mentioned above, Various modifications are included. For example, the above-described embodiments have been described in detail for easy understanding of the present invention, and are not necessarily limited to those having all the configurations described. Further, a part of the configuration of one embodiment can be replaced with the configuration of another embodiment, and the configuration of another embodiment can be added to the configuration of one embodiment. Further, it is possible to add, delete, and replace other configurations for a part of the configuration of each embodiment.

  DESCRIPTION OF SYMBOLS 1 ... Hoistway, 2 ... Rope, 3 ... Hoisting machine, 4 ... Sheave, 5 ... Riding car, 6 ... Counterweight, 7 ... Door machine frame, 8 ... Door motor, 9 ... Belt, 10 ... Hanger rail, DESCRIPTION OF SYMBOLS 11, 12 ... Roller, 13, 14 ... Hanger, 15, 16 ... Car door, 17 ... Housing, 18 ... Engagement body, 180 ... End part (locking side end part) of engagement body, 19 ... Electromagnetic device (electromagnetic solution) Locking device), 20 ... support plate, 21 ... engaged body (catch part), 22 ... unlocking body, 220 ... end of unlocking body (unlocking side end), 23, 23 ', 23 "... Unlocking device operating body, 24 ... guide, 25 ... stopper, 26 ... rotating shaft, 27 ... bar member, 28 ... connecting member, 29 ... Z-shaped member, 30 ... rotation center, 40 ... car door opening / closing device, 50 ... Car door lock device, 100 ... Elevator device.

Claims (8)

A car that moves up and down the hoistway, a counterweight that moves up and down with the car, a rope connected to the car and the counterweight, and a hoisting machine having a sheave around which the rope is wound In an elevator apparatus having
A car door provided on the car; an engaged body connected to the car door; an engaging body that engages with the engaged body; and an electromagnetic device that drives the engaging body with electromagnetic force. And
When the car is not in the openable / closable area of the car door in the hoistway, the engaged body is engaged with the engaging body and the car door is locked, and the car is connected to the car door. When in the openable and closable region, the engagement body is driven by the electromagnetic device, the engaged body is released from the engagement body, and the car door is unlocked,
An unlocking body capable of driving the engaging body in contact with the engaging body, an unlocking device operating body having one end connected to the unlocking body and the other end guided to the outer surface of the car door; Have
An elevator apparatus having a configuration capable of driving the unlocking body and the engagement body by operating the unlocking device operating body from the outside of the car and releasing the lock of the car door. In the elevator apparatus according to claim 1,
The elevator apparatus according to claim 1, wherein the unlocking device operating body comprises a rope. In the elevator apparatus according to claim 1,
The unlocking device operating body is composed of a plurality of rod-shaped members and a connecting member that couples the plurality of rod-shaped members,
The elevator apparatus, wherein the bar-like member is configured to be rotatable around the connecting member as a rotation center. In the elevator apparatus according to claim 1,
The unlocking device operating body consists of a Z-shaped member and a rotation center provided at the center of the Z-shaped member,
The elevator apparatus, wherein the Z-shaped member is configured to be rotatable around the rotation center. In the elevator apparatus according to claim 1,
The unlocking body is supported by a rotating shaft and has a configuration capable of rotating around the rotating shaft,
When the unlocking device operating body is not operated, a rotational force is applied to the end of the unlocking body in contact with the engagement body in a direction not contacting the engagement body due to its own weight. The elevator apparatus characterized by being made. In the elevator apparatus according to claim 5,
The engaging body is supported by a rotating shaft and has a configuration capable of rotating around the rotating shaft,
When the unlocking device operating body is not operated, the end of the engaging body that contacts the engaged body is rotated in the direction in which the end of the engaging body engages with the engaged body due to its own weight. Has been added,
An elevator apparatus, wherein an end portion of the engaging body that contacts the unlocking body and an end portion of the unlocking body that contacts the engaging body are disposed to face each other. The elevator apparatus according to claim 5 or 6,
The said engagement body and the said unlocking body consist of L-shaped levers, The elevator apparatus characterized by the above-mentioned. The elevator apparatus according to any one of claims 5 to 7,
When the unlocking device operating body is not operated, the unlocking body has a stopper that prevents the unlocking body from rotating in a direction not coming into contact with the engaging body and holds the unlocking body in a predetermined position. Elevator device.

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