JPH08165080A - Elevator equipment - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide an elevator device equipped with an unlocking mechanism that does not generate noise when a door is opened and closed. [Structure] Hooks 9 are attached to the center-sided landing doors 1A and 1B, which are arranged at the landing entrance of the elevator.
A latch 10 which is equipped with A and 9B, and which is releasably locked to a hanger case 5 which is a fixing member by hooks 9A and 9B.
A lock mechanism is provided by installing a hook 9 on both sides from the landing side.
Movable body 2 for operating A and 9B to release the engagement with the latch 10
The unlocking mechanism having 0 is configured, and the movable body 20 is
A fixing means is provided which is releasably fixed so as to be held at a lower position by its own weight when the unlocking mechanism is inoperative.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an elevator system, and more particularly, to an elevator system provided with an unlocking mechanism that can open a landing door at the center of both sides from the landing side.

[0002]

2. Description of the Related Art A conventional unlocking mechanism in which an opening and closing door on the center side of an elevator system can be opened from a landing side is disclosed in Japanese Patent Laid-Open No. 6-263370, in which a latch attached to a fixing member is used. A hook that is releasably engaged is provided on the landing door, and a movable body whose movement direction is restricted by a guide fixing member provided near this hook is provided.The movable body is operated from the landing side to latch the hook. It is configured to drive in the release direction from.

[0003]

However, in the unlocking mechanism in the above-described conventional elevator apparatus, the movable body is simply slidably arranged with respect to the guide fixing member, so that the car side When the hook is released from the latch in conjunction with the opening of the car side door by the door opening / closing device and the landing side door is also opened / closed, the vibration at this time is also transmitted to the movable body and positioned near the guide fixing member etc. It was revealed that noise was generated between the fixed member and the fixed member.

It is an object of the present invention to provide an elevator device having an unlocking mechanism that prevents noise when the door is opened and closed.

[0005]

According to the present invention, in order to achieve the above object, a hook is provided on each of the central double-sided landing doors arranged at the landing entrance of an elevator, and the hooks can be released to a fixing member corresponding to the hooks. In the elevator device having an unlocking mechanism having a movable body that is provided with a latch engaged with the hook and is operated from the landing side to drive both hooks to release the engagement with the latch, It is characterized in that a fixing means is provided for releasably fixing the movable body so that the movable body can be held at a position by its own weight when not operating.

[0006]

Since the elevator device of the present invention is provided with the fixing means for releasably holding the movable body when the unlocking mechanism is inoperative as described above, the movable body is operated from the landing side to drive both hooks. Satisfies the operation of the unlocking mechanism that releases the engagement with the latch, and even if vibration occurs when the door is opened and closed, the movable body is fixed to the fixing member or the like located in the vicinity by this fixing means and does not vibrate. No noise is generated between the fixing members located in the vicinity.

[0007]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a front view showing a main part of an elevator apparatus according to an embodiment of the present invention, and FIG. 2 is a sectional view taken along the line AA.

Landing door 1A, which opens to the left and right at the center,
1B has hangers 2A and 2B on the upper part thereof, and rollers 3A and 3B are rotatably supported by these hangers 2A and 2B, respectively, and these rollers 3A and 3B are mounted on a rail 4 fixed substantially horizontally to a hanger case 5. 3B is rotatably arranged. As a result, the landing door 1A,
1B is movable in the horizontal direction and is opened and closed together with the car side door by a car side door opening / closing device (not shown). The hanger case 5 supporting the rail 4 is fixed to the building wall 6. Further, hooks 9A and 9B are rotatably attached to the hangers 2A and 2B via shafts 7A and 7B, respectively, and fixed to the hanger case 5 at positions facing the hooks 9A and 9B and facing downward. Upward locking portions 10A, 10 for locking 9A, 9B
A latch 10 on which B is formed is provided. When the door is normally closed, the hooks 9A and 9B engage with the engaging portions 10A and 10B, and press the hooks 9A and 9B in the engaging direction.
The state is held by 1A and 11B. These hooks 9A and 9B, latch 10 and push spring 11
A and 11B form a locking mechanism.

The building wall 6 is formed with an entrance / exit for an elevator leading to the hoistway, and the peripheral edge of this entrance / exit is a three-way frame 13 formed by connecting a pair of vertical frames 13V with a horizontal frame 13H between the upper portions thereof. , The landing doors 1A and 1B, which are framed by a threshold (not shown) arranged between the lower portions of the pair of vertical frames 13V and configured as described above, are arranged so as to close the entrance / exit in the closed state. There is.

The above-mentioned locking mechanism applies a rotational force in the releasing direction to the hooks 9A and 9B when opening and closing the landing side doors 1A and 1B together with the car side door by the door opening and closing device for opening and closing the car side door. The lock is released. In addition to the above, the locking mechanism described above is different from that of the landing door 1 that opens in the center.
Rotation of A and 1B from the landing side in the releasing direction to the hooks 9A and 9B by an unlocking mechanism operated by inserting a key 15 through a through hole 14 formed in a horizontal frame 13H as shown in FIGS. 1 and 2. The unlocking mechanism is configured to be unlocked by applying force. Next, this unlocking mechanism will be described.

The unlocking mechanism is an enlarged view of the essential parts of FIG.
As shown in FIG. 5, a horizontally movable portion 20A provided at a position corresponding to the key 15 inserted when necessary, and the horizontally movable portion 20A.
A vertical portion 20B integrally formed with A, a guide means 18 fixed to the hanger case 5 for vertically guiding the movement of the vertical portion 20B, and a horizontal movable portion 20A provided below the hooks 9A and 9B. It is composed of push seats 12A and 12B that give rotation to the hooks 9A and 9B in the releasing direction. The movable body 20 is composed of the horizontally movable portion 20A and the vertical portion 20B, and the horizontally movable portion 20A is fixed to the hanger case 5 in the vicinity so as to be arranged at a position driven by the inserted key 15. Board 19A,
It is mounted on 19B and has a horizontally movable part 20A and a fixed plate 19
Sheet-shaped magnets 16A and 16B fixed to either one are arranged between A and 19B, and in this embodiment, the magnets 16A and 16B are fixed to fixing plates 19A and 19B. Further, the vertical portion 20B has an engaging portion 20C on the upper portion of the guide means 18, and when the vertical portion 20B is positioned below by its own weight, the engaging portion 20C collides with the upper portion of the guide means 18 and the position is regulated. A sheet-shaped magnet 17 fixed to either one of the engaging portion 20C and the guide means 18 is arranged, and in this embodiment, the magnet 17 is fixed to the guide means 18. Further, the horizontally movable portion 20A has a length that straddles the push seats 12A and 12B attached to the hooks 9A and 9B, and the push seats 12A and 12B are moved by the upward movement as shown by the two-dot chain line in the figure. The hooks 9A and 9B are rotated through the lever to release the lock of the latch 10 of FIG.

Therefore, when the unlocking mechanism is not operating, that is, when the movable body 20 is positioned below by its own weight and the locking mechanism is working, the magnets 16A and 16B magnetically attract and fix the horizontal movable portion 20A. Further, the magnet 17 magnetically attracts and fixes the engaging portion 20C. For this reason, even if the car gets on the floor and vibrations occur as the door opens and closes,
The movable body 20 is maintained in the illustrated state, and noise is not generated between the movable plates 20 and the fixed members such as the fixed plates 19A and 19B and the guide means 18 located in the vicinity. In this embodiment, the magnet 16 is provided between the horizontally movable portion 20A and the fixed plates 19A and 19B.
A and 16B are arranged, and the magnet 17 is arranged between the engaging portion 20C and the guide means 18, but the magnet is arranged only on one of them, or the unlocking mechanism having a different structure is similarly applied. be able to.

FIG. 4 is a front view showing an unlocking mechanism of an elevator apparatus according to another embodiment of the present invention.

Similar to the embodiment shown in FIG. 3, a horizontally movable portion 20A provided at a position corresponding to a key inserted when necessary.
And a vertical portion 20B formed integrally with the horizontal movable portion 20A to form a movable body 20, and the movable body 20 and
A guide means 18 fixed to the hanger case 5 for guiding the movement of the vertical portion 20B in the vertical direction, and a horizontal movable portion 20A provided below the hooks 9A and 9B to allow the hook 9 to move.
An unlocking mechanism is composed of a push seat (not shown) that gives rotation in the releasing direction to A and 9B. Tension springs 21A and 21B are arranged between the horizontally movable portion 20A and the fixed plates 19A and 19B so as to hold the movable body 20 at a lower position by its own weight and fix the movable body 20, and the engaging portion 20C and the guide means 18.
Tension springs 22A and 22B are arranged between them, and the movable body 20 is held and fixed at the lower position by its own weight.

As can be seen from this description, the fixing means is constituted by the magnets 16A, 16B and 17 in the previous embodiment, whereas the tension spring 21 is used in this embodiment.
The fixing means is constituted by A, 21B, 22A, and 22B, and the other configurations, the unlocking operation, and the unlocking operation are the same as those in the above-described embodiment, and substantially the same effect can be expected.

FIG. 5 is a front view showing an unlocking mechanism of an elevator apparatus according to still another embodiment of the present invention. The same parts as those of the embodiment shown in FIG. Omit it.

In this embodiment, the spring seat 2 fixed to the hanger case 5 is provided above the horizontal movable portion 20A which is separated by a predetermined distance.
5A and 25B are provided, and these spring seats 25A and 25B are provided.
Compression springs 23A and 2A between the B and the horizontal movable portion 20A, respectively.
3B is arranged so that the movable body 2 can be operated when the unlocking mechanism is inoperative.
0 is held at the lower position due to its own weight and fixed,
Spring seats 26A and 26B fixed to the hanger case 5 are provided on the upper part of the engaging portion 20C at a predetermined distance, and compression springs 24A and 24B are arranged between the spring seats 26A and 26B and the engaging portion 20C. Thus, when the unlocking mechanism is inoperative, the movable body 20 is held and fixed at the lower position by its own weight. Also in this embodiment, it is possible to obtain substantially the same effects as those of the previous embodiment.

FIG. 6 is a front view showing an unlocking mechanism of an elevator apparatus according to still another embodiment of the present invention. The same parts as those of the embodiment shown in FIG. Omit it.

This embodiment is different from the previous embodiment in that the fixing means is composed of an electromagnet. That is, the electromagnets 28A and 28B are arranged at the portions of the fixed plates 19A and 19B facing the horizontally movable portion 20A, and the same effects as those of the above-described embodiments are obtained.

It is possible to use an elastic body such as rubber as the fixing means to reduce the vibration of the movable body 20 due to the vibration, but the movable body 20 is positively held like the above-mentioned spring and magnet. It is more preferable to use a fixing means.

[0022]

As described above, according to the elevator apparatus of the present invention, the unlocking mechanism having the movable body for releasing the locking mechanism that locks the double-sided doors on the landing side from the landing side is provided. Since the movable body of the lock mechanism is provided with the fixing means that is releasably fixed so as to be held at the position by its own weight when the unlocking mechanism is inoperative, the vibration of the movable body when opening and closing the door as in the conventional case is prevented, It is possible to prevent the generation of noise.

[Brief description of drawings]

FIG. 1 is a front view showing a main part of an elevator apparatus according to an embodiment of the present invention.

2 is an enlarged cross-sectional view taken along the line AA of the elevator device shown in FIG.

FIG. 3 is an enlarged view showing an unlocking mechanism of the elevator device shown in FIG.

FIG. 4 is a front view of an unlocking mechanism, which is a main part of an elevator apparatus according to another embodiment of the present invention.

FIG. 5 is a front view of an unlocking mechanism which is a main part of an elevator apparatus according to still another embodiment of the present invention.

FIG. 6 is a front view of an unlocking mechanism which is a main part of an elevator apparatus according to still another embodiment of the present invention.

[Explanation of symbols]

 1 Landing Door 2 Hanger 3 Roller 4 Rail 5 Hanger Case 9A, 9B Hook 10 Latch 12 Push Seat 15 Key 16A, 16B, 17 Magnet 18 Guide Fixing Member 19 Fixing Plate 20 Movable Body

Claims (4)

[Claims] 1. A hook is provided on each of the doors on the landing side of the center, which is arranged at the entrance of the landing side of the elevator,
The fixing member corresponding to the hook is provided with a latch that is releasably engaged with the hook, and is provided with an unlocking mechanism having a movable body that is operated from the landing side to drive the both hooks to release the engagement with the latch. The elevator device further includes fixing means for releasably fixing the movable body so as to hold the movable body at a position by its own weight when the unlocking mechanism is inoperative. 2. The elevator apparatus according to claim 1, wherein the fixing unit is a magnet that fixes the movable body to a member fixed in the vicinity thereof. 3. The elevator apparatus according to claim 1, wherein the fixing means is constituted by a spring that fixes the movable body to a member fixed in the vicinity thereof. 4. The elevator apparatus according to claim 1, wherein the fixing unit is an electromagnet that fixes the movable body to a member fixed in the vicinity thereof.