WO2020105163A1

WO2020105163A1 - Elevator door unlocking device and elevator comprising same

Info

Publication number: WO2020105163A1
Application number: PCT/JP2018/043141
Authority: WO
Inventors: 夏希津谷
Original assignee: 三菱電機株式会社
Priority date: 2018-11-22
Filing date: 2018-11-22
Publication date: 2020-05-28
Also published as: CN112996741A; JPWO2020105163A1; DE112018008162T5; CN112996741B; JP7046192B2

Abstract

An elevator door unlocking device, wherein a rotor has an engagement part with which a key engages, is rotatably provided in a case, and is rotated by the key. A movable member is provided in the case to be able to move vertically and moves upward with respect to the case by the rotation of the rotor due to the key being transmitted. A contact member is provided in the movable member so as to be able to move vertically together with the movable member and contacts a locking device and unlocks the locking device by way of the movable member moving upward with respect to the case.

Description

Elevator door unlocking device and elevator including the same

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

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

JP, 2016-145101, A

In the conventional elevator door device as described above, the assembly including the operating body insertion portion, the first rotation shaft, and the first lever, and the assembly including the second rotation shaft and the 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 problems, and an object thereof is to obtain an unlocking device for an elevator door that can facilitate installation and position adjustment, and an elevator including the same. To do.

An elevator door unlocking device according to the present invention has a case provided with an opening into which a key is inserted, a fitting portion into which the key is fitted, and is rotatably provided in the case. A rotor that is rotated by a key, a movable member that is vertically movable on the case, and is movable upward with respect to the case by transmitting rotation of the rotor by the key, and vertically movable integrally with the movable member. The movable member is provided with a contact member that is brought into contact with the locking device to unlock the locking device when the movable member moves upward with respect to the case.

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

FIG. 1 is a front view showing an elevator hall according to Embodiment 1 of the present invention. It is a front view which shows the hall door apparatus of the elevator of Embodiment 1. It is a front view which expands and shows the interlock device of FIG. It is a side view which shows the principal 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. FIG. 9 is a bottom view showing the cylinder of FIG. 8. 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. FIG. 5 is a front view showing a normal state of the unlocking device of FIG. 4. FIG. 16 is a front view showing a state in which the cylinder and the unlocking bar of FIG. 15 are moved upward. FIG. 17 is a front view showing a state in which the cylinder and the unlocking bar in FIG. 16 are moved further upward.

Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings.
Embodiment 1.
1 is a front view showing an elevator hall according to Embodiment 1 of the present invention. In the figure, a hall entrance / exit 1 is provided in the hall. Three-sided frames 2 are provided on the left and right sides and the upper part of the landing doorway 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 hall entrance / exit 1. The second vertical frame 4 is arranged on the other side in the width direction of the hall entrance / exit 1. The upper frame 5 is provided above the hall entrance / exit 1. The upper frame 5 is horizontally arranged between the upper end of the first vertical frame 3 and the upper end of the second vertical frame 4.

On the lower surface of the upper frame 5, a keyhole 5a facing the hall entrance 1 is provided. The keyhole 5a is arranged in the middle of the hall entrance / exit 1 in the width direction.

The hall entrance 1 is opened and closed by the first hall door 6 and the second hall door 7. The first and

second hall doors

6 and 7 are the elevator doors according to the first embodiment.

FIG. 2 is a front view showing a hall door device of the elevator according to the first embodiment, and is a view of the hall door device viewed from the hoistway side. Each of the first and

second hall doors

6 and 7 has a door panel 8 and a door hanger 9. Each door hanger 9 is fixed to the upper part 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 doorway 1. A door rail 12 is provided on the hanger case 11. The door rail 12 is provided horizontally along the width direction of the hall entrance / exit 1.

The first and

second hall doors

6 and 7 are suspended from the door rail 12. During the opening and closing operations of the first and

second hall doors

6 and 7, each door roller 10 moves while rolling on the door rail 12.

A landing sill 13 is provided below the landing entrance 1. A threshold groove (not shown) is provided on the upper surface of the hall threshold 13. The sill groove is provided horizontally along the width direction of the hall entrance / exit 1. Further, the threshold groove guides the lower end portions of the first and

second hall doors

6 and 7 when the first and

second hall doors

6 and 7 are opened and closed.

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

3 is an enlarged front view of the interlock device 14 of FIG. 2, showing a state in which it 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 hall door 7. The latch 16 is rotatable around the base end. The latch 16 is hooked on the latch receiving member 15 when the first and

second hall doors

6 and 7 are in the fully closed state, and prevents the first and

second hall doors

6 and 7 from moving in the opening direction. To do.

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

The car not shown is provided with first and second car doors. A connecting mechanism is provided on the first car door. The connecting mechanism sandwiches the fixed-side interlock roller 17 and the movable-side interlock roller 18 when the car is landing and the first car door is opened, and the second car door 7 is attached to the first car door. Link.

Further, the connection mechanism is such that when the car is landing and the first car door is opened, the latch 16, the fixed interlock roller 17, and the fixed interlock roller 17 are centered around the rotation axes of the latch 16 and the fixed interlock roller 17. The movable side interlock roller 18 is rotated. As a result, the latch 16 is disengaged from the latch receiving member 15, and the opening operation of the first and

second landing doors

6 and 7 becomes possible. When the second hall door 7 moves to the fully closed position, the latch 16 is hooked on the latch receiving member 15.

The interlock switch 19 detects whether 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 hall doors

6 and 7 are fully closed and the latch 16 is hooked on the latch receiving member 15, the lock contact 21 contacts the interlock contact 20 and the interlock switch 19 closes. There is. When the latch 16 is disengaged from the latch receiving member 15, the lock contact 21 separates from the interlock contact 20 and the interlock switch 19 opens.

The upper frame 5 is provided with an unlocking device 22. The unlocking device 22 is a device that is operated when manually opening the first and

second hall doors

6 and 7 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 the 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 in the case 23 so as to be vertically movable. The unlocking bar 26 is provided in the cylinder 25 so as to be vertically movable integrally with the cylinder 25. The unlocking bar 26 is horizontally fixed to the upper end of the cylinder 25.

The latch 16 rotates from the position of the two-dot chain line in FIG. 3 to the position of the solid line by moving the unlocking rod 26 upward from the position of the two-dot chain line in FIG. 4 to the position of the solid line.

FIG. 5 is a front view showing the case 23 of FIG. FIG. 6 is a side view showing the case 23 of FIG. FIG. 7 is a bottom view showing the case 23 of FIG. The case 23 has a case cylindrical portion 23a and a case disc 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 at 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 extending in the vertical direction. The second guide groove 23f is arranged so as to be displaced 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 regulate the rotation of the cylinder 25 with respect to the case 23, and guide the vertical movement of the cylinder 25 with respect to the case 23.

FIG. 8 is a front view showing the cylinder 25 of FIG. 9 is a side view showing the cylinder 25 of FIG. FIG. 10 is a bottom view showing the cylinder 25 of FIG. The cylinder 25 has a cylinder cylindrical 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 of the cylinder cylindrical portion 25a. 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 displaced 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 cylindrical portion 25a is larger than the outer diameter of the case cylindrical 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. 11. 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. 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 horizontally project in opposite directions.

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 projects to the outside of the cylinder 25. Further, the first spiral groove insertion portion 24c relatively moves within the first spiral groove 25d when the rotor 24 rotates 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 portion of the second spiral groove insertion portion 24d penetrates the second spiral groove 25e and projects to the outside of the cylinder 25. In addition, the second spiral groove insertion portion 24d relatively moves within 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 has 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 and fitted into the fitting hole 27a. 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 explained. FIG. 15 is a front view showing a normal state of the unlocking device 22 of FIG. In a normal state, 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 part of the first spiral groove 25d. The second spiral groove insertion portion 24d is located at the uppermost part of the second spiral groove 25e.

When manually opening the first and

second hall doors

6 and 7, an operator 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 relatively moves along the first spiral groove 25d, and the second spiral groove insertion portion 24d relatively moves along the second spiral groove 25e. As a result, the cylinder 25 is pushed up as shown in FIG.

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

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

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 position 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 position.

In such an elevator door unlocking device 22, the case 24 is provided with the rotor 24 and the cylinder 25, and the cylinder 25 is provided with the unlocking rod 26. 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 in the upper frame 5 only 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.

Also, the entire structure of the unlocking device 22 can be made compact.

Also, by changing the length of the cylinder 25 and the length of the rotor 24, it is possible to easily deal with the change of the height of the hall door device with respect to the height of the three-way frame 2.

Further, the case 23 is provided with first and

second guide grooves

23e and 23f, and the cylinder 25 is provided with 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 first and

second spiral grooves

25d and 25e, and the rotor 24 is provided with first and second spiral

groove insertion portions

24c and 24d. Therefore, the rotational movement of the rotor 24 can be converted into the linear movement of the cylinder 25 with a simple configuration.

Since the upper frame 5 is provided with the keyhole 5a, the keyhole 5a can be made inconspicuous to prevent the design from being deteriorated and the operation of the unlocking device 22 due to mischief to be suppressed.

Note that the guide groove may be provided in the movable member and the guide groove insertion portion may be provided in the case.

Also, 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.

Also, 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 stably move the movable member up and down, it is preferable that the guide groove and the guide groove insertion portion are two or more.

Also, 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 stably move the movable member up and down, it is preferable to have two or more spiral grooves and two spiral groove insertion portions.

Also, the mechanism for converting the rotational movement of the rotor into the linear movement of the movable member is not limited to the above mechanism.

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

Also, the elevator door may be a car door.

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

1 entrance / exit, 5 upper frame, 5a keyhole, 14 interlock device (locking device), 22 unlocking device, 23 case, 23c opening, 23e first guide groove, 23f second guide groove, 24 rotor, 24a Fitting part, 24c first spiral groove insertion part, 24d second spiral groove insertion part, 25 cylinder (movable member), 25d first spiral groove, 25e second spiral groove, 26 unlocking rod (contact member ), 27 keys.

Claims

A case with an opening for inserting a key,
A rotor having a fitting portion into which the key is fitted and rotatably provided in the case, and being rotated by the key;
A movable member that is provided in the case such that it can move up and down, and that the rotation of the rotor by the key is transmitted to move upward with respect to the case, and the movable member that can move up and down integrally with the movable member. An unlocking device for an elevator door, comprising: a contact member, which is provided in the locker and unlocks the locking device by contacting the locking device when the movable member moves upward with respect to the case.
One of the case and the movable member is provided with a guide groove that guides the vertical movement of the movable member with respect to the case while restricting rotation of the movable member with respect to the case,
The unlocking device for an elevator door according to claim 1, wherein the other of the case and the movable member has a guide groove insertion portion that is inserted into the guide groove.
The movable member has a cylindrical portion,
The cylindrical portion is provided with a spiral groove,
The rotor has a spiral groove insertion portion that is inserted into the spiral groove,
The elevator door unlocking device according to claim 1 or 2, wherein the spiral groove insertion portion relatively moves in the spiral groove when the rotor rotates with respect to the case.
An upper frame provided at an upper part of a landing doorway and provided with a keyhole into which the key is inserted, and the upper frame attached to the upper frame so that the opening is exposed from the keyhole. An elevator comprising the elevator door unlocking device according to claim 3.