JP7046192B2 - Elevator door unlocking device and elevator equipped with it - Google Patents

Description

The present invention relates to an elevator door unlocking device for unlocking an elevator door locking device, and an elevator provided with the same.

In the conventional elevator door device, an operating body insertion portion, a first lever, and a second lever are provided on the upper frame of the three-sided frame. The first lever is rotated about a vertical first rotation axis by inserting the operating body into the operating body inserting portion and rotating the operating body. The second lever is rotated about a horizontal second rotation axis by the rotation of the first lever. The locking device is unlocked by the rotation of the second lever (see, for example, Patent Document 1).

Japanese Unexamined Patent Publication No. 2016-145101

In a conventional elevator door device as described above, an assembly including an operating body insertion portion, a first rotating shaft, and a first lever and an assembly including a second rotating shaft and a second lever are provided. , Separately attached to the upper frame. Therefore, it takes time and effort to install and adjust the position of the unlocking device.

The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to obtain an elevator door unlocking device capable of facilitating installation and position adjustment, and an elevator equipped with the same. do.

The elevator door unlocking device according to the present invention has a case in which an opening into which a key is inserted is provided at the lower end, and a fitting portion which is housed inside the case and into which a key is fitted. In addition, it is rotatably provided in the case around a straight line that runs along the vertical direction and penetrates the opening, and is rotatably provided in the rotor that is rotated by the key and in the case that can be moved up and down, and the rotation of the rotor by the key is transmitted. A movable member that moves upward with respect to the case, and a movable member that can move up and down integrally with the movable member, and the movable member moves upward with respect to the case to come into contact with the locking device. A contact member for unlocking the locking device is provided , and the case, rotor, movable member and contact member can be installed outside the landing entrance / exit in an integrated state .

In the elevator door unlocking device of the present invention, the case is provided with a rotor and a movable member, and the movable member is provided with a contact member. Therefore, installation and position adjustment can be facilitated.

It is a front view which shows the landing of the elevator by Embodiment 1 of this invention. It is a front view which shows the landing door device of the elevator of Embodiment 1. FIG. It is a front view which shows the interlock device of FIG. 2 in an enlarged manner. It is a side view which shows the main part of FIG. It is a front view which shows the case of FIG. It is a side view which shows the case of FIG. It is a bottom view which shows the case of FIG. It is a front view which shows the cylinder of FIG. It is a side view which shows the cylinder of FIG. It is a bottom view which shows the cylinder of FIG. It is a front view which shows the rotor of FIG. It is a side view which shows the rotor of FIG. It is a bottom view which shows the rotor of FIG. It is a perspective view which shows the key which operates the unlocking apparatus of FIG. It is a front view which shows the normal state of the unlocking apparatus of FIG. It is a front view which shows the state which moved the cylinder and the unlocking rod of FIG. 15 upward. It is a front view which shows the state which moved the cylinder and the unlocking rod of FIG. 16 further upward.

Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings.
Embodiment 1.
FIG. 1 is a front view showing an elevator landing according to the first embodiment of the present invention. In the figure, the landing is provided with a landing entrance / exit 1. Three-sided frames 2 are provided on both the left and right sides and the upper part of the landing entrance 1. The three-sided frame 2 has a first vertical frame 3, a second vertical frame 4, and an upper frame 5.

The first vertical frame 3 is arranged on one side in the width direction of the landing entrance / exit 1. The second vertical frame 4 is arranged on the other side in the width direction of the landing entrance / exit 1. The upper frame 5 is provided above the landing entrance / exit 1. Further, the upper frame 5 is horizontally arranged between the upper end portion of the first vertical frame 3 and the upper end portion of the second vertical frame 4.

A key hole 5a facing the landing entrance / exit 1 is provided on the lower surface of the upper frame 5. The key hole 5a is arranged in the middle portion in the width direction of the landing entrance / exit 1.

The landing entrance 1 is opened and closed by the first landing door 6 and the second landing door 7. The first and second landing doors 6 and 7 are the elevator doors of the first embodiment.

FIG. 2 is a front view showing the landing door device of the elevator of the first embodiment, and is a view of the landing door device as viewed from the hoistway side. The first and second landing doors 6 and 7 have a door panel 8 and a door hanger 9, respectively. Each door hanger 9 is secured to the top of the corresponding door panel 8. Each door hanger 9 is provided with a plurality of door rollers 10.

A hanger case 11 is fixed to the upper part of the landing entrance 1. The hanger case 11 is provided with a door rail 12. The door rail 12 is provided horizontally along the width direction of the landing entrance / exit 1.

The first and second landing doors 6 and 7 are suspended from the door rail 12. During the opening / closing operation of the first and second landing doors 6 and 7, each door roller 10 moves while rolling on the door rail 12.

A landing threshold 13 is provided at the lower part of the landing entrance 1. A threshold groove (not shown) is provided on the upper surface of the landing threshold 13. The threshold groove is provided horizontally along the width direction of the landing entrance / exit 1. Further, the threshold groove guides the lower ends of the first and second landing doors 6 and 7 when the first and second landing doors 6 and 7 are opened and closed.

The hanger case 11 is provided with a landing door interlocking mechanism (not shown). The opening / closing operation of the second landing door 7 is transmitted to the first landing door 6 via the landing door interlocking mechanism.

An interlock device 14, which is a locking device, is provided between the second landing door 7 and the hanger case 11.

FIG. 3 is an enlarged front view showing the interlock device 14 of FIG. 2, and shows a state in which the interlock device 14 is manually unlocked. The interlock device 14 includes a latch receiving member 15, a latch 16, a fixed side interlock roller 17, a movable side interlock roller 18, and an interlock switch 19.

The latch receiving member 15 is fixed to the hanger case 11. The latch 16 is provided on the door hanger 9 of the second landing door 7. The latch 16 is rotatable about the proximal end. The latch 16 is hung on the latch receiving member 15 when the first and second landing doors 6 and 7 are fully closed, and prevents the first and second landing doors 6 and 7 from moving in the opening direction. do.

The fixed side interlock roller 17 and the movable side interlock roller 18 are provided at the base end portion of the latch 16. The fixed-side interlock roller 17 is arranged coaxially with the rotation axis of the latch 16 and rotates integrally with the latch 16.

A car (not shown) is provided with first and second car doors. Further, the first car door is provided with a connecting mechanism. The connecting mechanism sandwiches the fixed side interlock roller 17 and the movable side interlock roller 18 when the car lands on the floor and the first car door opens, and the second landing door 7 is attached to the first car door. connect.

Further, in the connecting mechanism, when the car is landed and the first car door is opened, the latch 16, the fixed side interlock roller 17, and the fixed side interlock roller 17 are centered on the rotation axes of the latch 16 and the fixed side interlock roller 17. The movable side interlock roller 18 is rotated. As a result, the latch 16 is removed from the latch receiving member 15, and the first and second landing doors 6 and 7 can be opened. Further, when the second landing door 7 moves to the fully closed position, the latch 16 is hung on the latch receiving member 15.

The interlock switch 19 detects whether or not the latch 16 is hooked on the latch receiving member 15. Further, the interlock switch 19 has an interlock contact 20 and a lock contact 21.

The interlock contact 20 is provided on the latch receiving member 15 of the hanger case 11. The lock contact 21 is fixed to the latch 16.

When the first and second landing doors 6 and 7 are fully closed and the latch 16 is hung on the latch receiving member 15, the lock contact 21 is in contact with the interlock contact 20 and the interlock switch 19 is closed. There is. Further, when the latch 16 is disengaged from the latch receiving member 15, the lock contact 21 is separated from the interlock contact 20 and the interlock switch 19 is opened.

The upper frame 5 is provided with an unlocking device 22. The unlocking device 22 is a device that is operated when the first and second landing doors 6 and 7 are manually opened to unlock the interlock device 14. FIG. 3 shows a state in which the unlocking device 22 is operated and the interlock device 14 is unlocked.

FIG. 4 is a side view showing a main part of FIG. 3, and is a view of the main part of FIG. 3 viewed from left to right. The unlocking device 22 has a case 23, a rotor 24, a cylinder 25 as a movable member, and an unlocking rod 26 as a contact member.

The case 23 is fixed to the upper frame 5. The cylinder 25 is provided on the case 23 so as to be vertically movable. The unlocking rod 26 is provided on the cylinder 25 so as to be vertically movable integrally with the cylinder 25. Further, the unlocking rod 26 is horizontally fixed to the upper end portion of the cylinder 25.

As the unlocking rod 26 moves upward from the position of the two-dot chain line in FIG. 4 to the position of the solid line, the latch 16 rotates from the position of the two-dot chain line in FIG. 3 to the position of the solid line.

FIG. 5 is a front view showing the case 23 of FIG. Further, FIG. 6 is a side view showing the case 23 of FIG. Further, FIG. 7 is a bottom view showing the case 23 of FIG. The case 23 has a case cylindrical portion 23a and a case disk portion 23b.

An opening 23c is provided at the lower end of the case cylindrical portion 23a. The case 23 is attached to the upper frame 5 so that the opening 23c is exposed from the key hole 5a.

The case disk portion 23b is provided at the upper end of the case cylindrical portion 23a. A through hole 23d is provided in the center of the case disk portion 23b.

A first guide groove 23e and a second guide groove 23f are provided on the outer peripheral surface of the case cylindrical portion 23a. The first and second guide grooves 23e and 23f are linear grooves along the vertical direction. The second guide groove 23f is arranged so as to be offset by 180 degrees in the circumferential direction of the case cylindrical portion 23a with respect to the first guide groove 23e.

Further, the first and second guide grooves 23e and 23f guide the cylinder 25 to move in the vertical direction with respect to the case 23 while restricting the rotation of the cylinder 25 with respect to the case 23.

FIG. 8 is a front view showing the cylinder 25 of FIG. Further, FIG. 9 is a side view showing the cylinder 25 of FIG. Further, FIG. 10 is a bottom view showing the cylinder 25 of FIG. The cylinder 25 has a cylinder cylinder portion 25a, a first guide groove insertion portion 25b, and a second guide groove insertion portion 25c.

The first and second guide groove insertion portions 25b and 25c project downward from the lower end portion of the cylinder cylindrical portion 25a. Further, the first and second guide groove insertion portions 25b and 25c project radially inward from the inner peripheral surface of the cylinder cylindrical portion 25a when viewed from directly below. The second guide groove insertion portion 25c is arranged so as to be offset by 180 degrees in the circumferential direction of the cylinder cylindrical portion 25a with respect to the first guide groove insertion portion 25b.

The first guide groove insertion portion 25b is inserted into the first guide groove 23e. Further, the first guide groove insertion portion 25b moves along the first guide groove 23e when the cylinder 25 moves up and down with respect to the case 23.

The second guide groove insertion portion 25c is inserted into the second guide groove 23f. Further, the second guide groove insertion portion 25c moves along the second guide groove 23f when the cylinder 25 moves up and down with respect to the case 23.

The inner diameter of the cylinder cylinder portion 25a is larger than the outer diameter of the case cylinder portion 23a. The cylinder cylindrical portion 25a is provided with a spiral first spiral groove 25d and a spiral second spiral groove 25e.

FIG. 11 is a front view showing the rotor 24 of FIG. Further, FIG. 12 is a side view showing the rotor 24 of FIG. Further, FIG. 13 is a bottom view showing the rotor 24 of FIG. The rotor 24 has a fitting portion 24a, a shaft portion 24b, a rod-shaped first spiral groove insertion portion 24c, and a rod-shaped second spiral groove insertion portion 24d.

The outer shape of the fitting portion 24a is a triangular prism. The fitting portion 24a is housed in the case cylindrical portion 23a. The shaft portion 24b is fixed to the upper end of the fitting portion 24a. Further, the shaft portion 24b penetrates the through hole 23d of the case 23 and is inserted into the cylinder cylindrical portion 25a.

The base end portions of the first and second spiral groove insertion portions 24c and 24d are fixed to the shaft portion 24b. Further, the first and second spiral groove insertion portions 24c and 24d project horizontally in opposite directions to each other.

The tip of the first spiral groove insertion portion 24c is inserted into the first spiral groove 25d. In this example, the tip of the first spiral groove insertion portion 24c penetrates the first spiral groove 25d and protrudes to the outside of the cylinder 25. Further, the first spiral groove insertion portion 24c relatively moves in the first spiral groove 25d when the rotor 24 is rotated with respect to the case 23.

The tip of the second spiral groove insertion portion 24d is inserted into the second spiral groove 25e. In this example, the tip of the second spiral groove insertion portion 24d penetrates the second spiral groove 25e and protrudes to the outside of the cylinder 25. Further, the second spiral groove insertion portion 24d moves relatively in the second spiral groove 25e when the rotor 24 rotates with respect to the case 23.

FIG. 14 is a perspective view showing a key for operating the unlocking device 22 of FIG. The key 27 is provided with a fitting hole 27a. The cross-sectional shape of the fitting hole 27a is triangular. The key 27 is inserted into the opening 23c when operating the unlocking device 22. At this time, the fitting portion 24a is inserted into the fitting hole 27a and fitted. The rotor 24 is rotated by the key 27 with the fitting portion 24a fitted in the fitting hole 27a.

Next, the operation will be described. FIG. 15 is a front view showing a normal state of the unlocking device 22 of FIG. In normal times, that is, when the unlocking device 22 is not operated, the cylinder 25 is located at the lowest position with respect to the case 23. At this time, the first spiral groove insertion portion 24c is located at the uppermost portion of the first spiral groove 25d. Further, the second spiral groove insertion portion 24d is located at the uppermost portion of the second spiral groove 25e.

When manually opening the first and second landing doors 6 and 7, the worker inserts the key 27 into the case 23 and fits the fitting hole 27a into the fitting portion 24a. Then, the rotor 24 is rotated by the key 27.

At this time, since the rotation of the cylinder 25 with respect to the case 23 is restricted, only the rotor 24 rotates. Then, the first spiral groove insertion portion 24c moves relatively along the first spiral groove 25d, and the second spiral groove insertion portion 24d moves relatively along the second spiral groove 25e. As a result, as shown in FIG. 16, the cylinder 25 is pushed up.

In this way, the cylinder 25 is transmitted the rotation of the rotor 24 by the key 27 and moves upward with respect to the case 23. That is, the rotational motion of the rotor 24 is converted into the linear motion of the cylinder 25.

As the cylinder 25 moves upward with respect to the case 23, the unlocking rod 26 also moves upward. As a result, the unlocking rod 26 comes into contact with the latch 16 and pushes up the latch 16. Then, as shown in FIG. 17, when the cylinder 25 moves to the uppermost position with respect to the case 23, the latch 16 is separated from the latch receiving member 15 and the interlock device 14 is unlocked as shown in FIG. ..

Further, a return spring (not shown) is provided between the case 23 and the rotor 24. The return spring applies a rotational force to the rotor 24. The direction of the rotational force applied by the return spring is the direction in which the cylinder 25 and the unlocking rod 26 are returned to the normal positions shown in FIG. Therefore, by pulling out the key 27 from the case 23, the cylinder 25 and the unlocking rod 26 automatically return to the normal positions.

In such an elevator door unlocking device 22, a rotor 24 and a cylinder 25 are provided in the case 23, and an unlocking rod 26 is provided in the cylinder 25. That is, the case 23, the rotor 24, the cylinder 25, and the unlocking rod 26 are integrated.

Therefore, the unlocking device 22 can be installed on the upper frame 5 simply by attaching the case 23 to the upper frame 5 while adjusting the position of the unlocking rod 26 with respect to the latch 16. Therefore, the installation and position adjustment of the unlocking device 22 can be facilitated.

In addition, the overall configuration of the unlocking device 22 can be made compact.

Further, by changing the length of the cylinder 25 or the length of the rotor 24, it is possible to easily cope with the change in the height of the landing door device with respect to the height of the three-sided frame 2.

Further, the case 23 is provided with the first and second guide grooves 23e and 23f, and the cylinder 25 is provided with the first and second guide groove insertion portions 25b and 25c. Therefore, with a simple configuration, it is possible to guide the movement of the cylinder 25 with respect to the case 23 in the vertical direction while restricting the rotation of the cylinder 25 with respect to the case 23.

Further, the cylinder cylindrical portion 25a is provided with the first and second spiral grooves 25d and 25e, and the rotor 24 is provided with the first and second spiral groove insertion portions 24c and 24d. Therefore, with a simple configuration, the rotary motion of the rotor 24 can be converted into the linear motion of the cylinder 25.

Further, since the key hole 5a is provided in the upper frame 5, the key hole 5a can be made inconspicuous, the deterioration of the design can be suppressed, and the operation of the unlocking device 22 due to mischief can be suppressed.

The guide groove may be provided in the movable member, and the guide groove insertion portion may be provided in the case.

Further, the shapes of the case and the rotor are not limited to the above shapes. Further, the movable member is not limited to the cylinder. Further, the contact member is not limited to the unlocking rod.

Further, the number of guide grooves is not limited to two. Similarly, the number of guide groove insertion portions is not limited to two. However, in order to move the movable member up and down stably, it is preferable to have two or more guide grooves and two or more guide groove insertion portions.

Further, the number of spiral grooves is not limited to two. Similarly, the number of spiral groove insertion portions is not limited to two. However, in order to move the movable member up and down stably, it is preferable to have two or more spiral grooves and two or more spiral groove insertion portions.

Further, the mechanism for converting the rotary motion of the rotor into the linear motion of the movable member is not limited to the above mechanism.

Further, the locking device is not limited to the interlock device.

Further, the elevator door may be a car door.

Further, the number of elevator doors is not limited to two. Further, the opening / closing method may be a center opening type or a single opening type.

1 Landing entrance, 5 Upper frame, 5a key hole, 14 Interlock device (locking device), 22 Unlocking device, 23 case, 23c opening, 23e 1st guide groove, 23f 2nd guide groove, 24 rotor, 24a Fitting part, 24c 1st spiral groove insertion part, 24d 2nd spiral groove insertion part, 25 cylinder (movable member), 25d 1st spiral groove, 25e 2nd spiral groove, 26 unlocking rod (contact member) ), 27 keys.

Claims (4)

A case with an opening at the bottom for inserting a key,
It has a fitting portion that is housed inside the case and into which the key is fitted, and is rotatably provided in the case around a straight line that runs in the vertical direction and penetrates the opening . , Rotor rotated by the key,
A movable member provided in the case so as to be movable up and down, and a movable member that is transmitted by the rotation of the rotor by the key to move upward with respect to the case, and the movable member that can be moved up and down integrally with the movable member. The movable member is provided with a contact member that comes into contact with the locking device and unlocks the locking device by moving upward with respect to the case .
An elevator door unlocking device in which the case, the rotor, the movable member, and the contact member can be installed outside the landing entrance / exit in an integrated state . One of the case and the movable member is provided with a guide groove for guiding the movable member to move in the vertical direction with respect to the case while restricting the rotation of the movable member with respect to the case.
The elevator door unlocking device according to claim 1, wherein the other of the case and the movable member has a guide groove insertion portion inserted into the guide groove. The movable member has a cylindrical portion and has a cylindrical portion.
The cylindrical portion is provided with a spiral spiral groove, and the cylindrical portion is provided with a spiral groove.
The rotor has a spiral groove insertion portion inserted into the spiral groove.
The elevator door unlocking device according to claim 1 or 2, wherein the spiral groove insertion portion moves relatively in the spiral groove when the rotor rotates with respect to the case. 1 The elevator provided with the elevator door unlocking device according to any one of claims 3 to 3.

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