JP2002265174A - Door opening/locking device for elevator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To inexpensively and positively set so as to hold a hall side door panel in an opened state with narrow spacing in rescue work or the like. SOLUTION: In a hall side door opening and closing mechanism part 2 of an elevator, a lock lever 10 is rotatably attached to a door hanger 4 moving along with the hall side door panel 1a via a base member 7. When the door panel 1a is opened and moves a preset distance, the lock lever 10 engages with a locking base 12 by rotation to one direction of the lock lever by an unlock key and locks the door panel 1a, and it unlocks the door panel 1a by rotation to the opposite direction of the lock lever 10 by the unlock key.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an elevator door unlocking device.

[0002]

2. Description of the Related Art Generally, elevators are divided into two types: elevators having a center which is divided at a center and opening and closing right and left, and elevators having a single opening which open and close a door in one of right and left directions.

FIG. 3 is a rear view of the hall side of a general left-hand one-sided elevator with a hold door closed.
As shown in FIG. 3, a hall-side door panel opening / closing mechanism 2 is mounted above the hall-side door panels 1a and 1b of the elevator. A door interlock 3 is provided in the hall-side door panel opening / closing mechanism 2.

The hall-side door panels 1a and 1b are supported by the respective door hangers 4 provided in the hall-side door panel opening / closing mechanism 2 in such a manner that the upper ends thereof are suspended, and are interlocked with the hall-side door panel opening / closing mechanism 2. It is configured to open and close. Further, since the door interlock 3 is attached to the door hanger 4, the hall-side door panels 1a and 1b usually have a structure that cannot be opened except when the door is opened and closed.

[0005]

In an elevator equipped with such a door panel opening / closing mechanism 2, if the car is stopped for an emergency for some reason, the car is landed on the nearest floor to rescue the passengers. There is a need to. in this case,
Rescue work is performed by gradually releasing the brakes attached to the hoist and moving the car to the nearest floor, but if the hoist is an elevator in the machine room, Work can be done safely while monitoring However, if the hoist is a machine-room-less elevator in the hoistway and there is no viewing window for grasping the situation in the hoistway, maintenance personnel open the hall-side door panels 1a and 1b and move up and down from the hall. Rescue work will be performed by remotely controlling the brake of the hoist while grasping the situation in the road, and since the hall side door panels 1a and 1b are opened, the maintenance and inspection worker will accidentally go up and down the hall. There is a risk of falling on the road.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-described problems, and it is necessary to open the hall-side door panel and monitor the inside of a hoistway during rescue work or maintenance work. It is an object of the present invention to provide an elevator door opening lock device which can set the interval at which the hall side door panel is opened in a narrow range and lock it securely.

[0007]

According to a first aspect of the present invention, there is provided an elevator door opening lock device, wherein a lock lever is rotatably attached to a member that moves together with the hall side door panel in the hall side door panel opening / closing mechanism of the elevator.
A fixing member supporting the door panel opening / closing mechanism,
When the lock lever has moved a short distance set in advance, the lock lever engages by rotating to one side to lock the hole-side door panel, and the door panel is rotated by rotating the lock lever in the opposite direction. It has a locking base to unlock.

According to a second aspect of the present invention, in the elevator door unlocking device of the first aspect, a ball plunger for holding the lock lever in the locked position and the unlocked position is provided. It is assumed that.

According to a third aspect of the present invention, in the elevator door opening lock device according to the first or second aspect, the locking base is configured to guide the lock lever to its locked position. It is.

According to a fourth aspect of the present invention, in the elevator door opening lock device of the first to third aspects, a member for restricting rotation of the lock lever is provided.

According to a fifth aspect of the present invention, in the elevator door opening lock device of the first to fourth aspects, a cushion member is provided between the lock lever and a member for restricting rotation of the lock lever. It is assumed that.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below in detail with reference to the drawings. FIGS. 1 (a) and 1 (b) show a door opening lock device in a hole side door which is open on one side on the left side in detail. FIG. 1A is a front view, and FIG. 1B is a view taken along line XX of FIG. 1A, showing a state in which the door panels 1a and 1b are closed. Door panels 1a and 1b are suspended from each door hanger 4 of the door panel opening / closing mechanism 2. The door panels 1a and 1b are locked by a door interlock 3 including a plug-in latch 5 and a locking portion 6 when fully closed. When the door interlock 3 is released by lifting the door 5, the door panels 1 a and 1 b move leftward and open.

Here, a base member 7 is arranged on the door hanger 4 on the door panel 1a side along the moving direction of the door panel 1a on the car side, and is fixed to the door hanger 4 by bolts and nuts 8. The base member 7 has a shaft 9
Is provided. The lock lever 10 has a tongue-shaped locking portion 10.
a, 10b and an L-shaped lock member 10c are provided.

The locking portion 10a extends through the hole 7a formed at one end of the base member 7 toward the hole, and
b is provided to extend through the hole 7b formed on the other end side of the base member 7 toward the hole side. A cushion material 1 such as rubber is provided on upper and lower surfaces of the locking portion 10b.
1 is attached. The rotation of the lock lever 10 is restricted by the engagement of the locking portions 10a and 10b with the insides of the holes 7a and 7b. Locking part 10b
When the lock lever 10 swings due to vibration or the like caused by opening and closing of the door panel, the cushion material 11
The impact and noise generated when abutting against the inner edge of the vehicle are mitigated. This cushion material 11 may be provided on the hole 7b side of the base member 7.

The lock member 10c is provided at the other end of the base member 7 so as to extend toward the car at a position opposite to the locking portion 10b, and the bent portion moves laterally to be described later. The door panel 1a is locked by being fitted into the notch 12a of the locking base 12, so that the door panel 1a cannot be moved.

The base member 7 has ball plungers 13a, 1a for positioning when the lock lever 10 rotates.
3b is provided. These ball plungers 13
Reference numerals a and 13b denote a housing in which a spring (not shown) is accommodated in a cylinder and a ball is pressed and supported via the spring. The ball slides on the surface of the lock lever 10 when the lock lever 10 rotates, and is formed on the surface of the lock lever 10. Each pair of holes 14a and 14b
Alternatively, the lock lever 10 is positioned by fitting into the lock levers 15a and 15b. Holes 14a and 14b or 15a when additional rotational power is applied to lock lever 10.
, 15b so that the lock lever 10 can rotate.

The locking base 12 is a rod 1 fixed to a three-sided frame 16 which is a support member of the door panel opening / closing mechanism 2.
7 and is provided on the car side of the lock lever 10 so as to extend in the lateral direction. The locking base 12 has a locking member 16 with a predetermined short distance to the left from the position when the door panel is fully closed,
For example, the notch 18a that fits when moved 125 mm
Is provided. This preset short distance is
This is the interval required for the maintenance worker to monitor the inside of the hoistway, and is smaller than the width dimension of the door panel 1b and refers to the interval dimension that the maintenance worker cannot enter or leave.

Next, the operation of the thus configured door opening lock device will be described with reference to FIG. FIG.
(A) is a state where the door panels 1a and 1b are fully closed,
(B) is a state before the door lock is locked with the door panel 1a opened 125 mm, (c) and (d) are states where the door panel 1a is opened 125 mm and the door lock is locked, and (e) is a state where the door panel 1a is opened 125 mm. Shows the state when the door lock is unlocked.

When the door panels 1a and 1b shown in FIG. 2A are fully closed, the lock lever 10 is inclined upward to the left, and the ball plungers are positioned by fitting into the holes 14a and 14b. This state is maintained even when the door panels 1a and 1b normally open and close.

For example, when it becomes necessary to open the door panel 1a when the car has an emergency stop,
After unlocking the door interlock 3 by inserting an unlock key between the three-way frame and the door hanger 4 or when there is a curtain plate, the door panel 1a is shown within 50 mm. Open to the left and hold it down by hand. Then, as shown in FIG. 2 (b), the unlock key 18 is made vertical, inserted between the three-way frame and the door hanger 4, and the lock lever 10 of the door opening lock device is pushed up via the locking portion 10b. The door panel 1a is slowly opened to the left in the drawing while pushing up the locking portion 10b with the unlock key 18 and guiding the locking portion 10b to the lower surface of the locking base 12.

When the lock lever 10 and the lock member 10c move 125 mm from the fully closed position together with the door panel 1a, the lock member 10c is inserted into the notch 12a of the lock base 12 as shown in FIGS. 2 (c) and 2 (d). At this time, the door panel 1a is pressed,
The unlock key 18 is further pushed up and pushed up to a position where the ball plunger and the holes 15a and 15b are fitted and the lock lever 10 is positioned to lock the fitted state of the lock member 10c and the notch 12a to the locked state. I do.

As a result, the door panel 1a is kept open at a narrow interval of 125 mm between the door panel 1b and the door panel 1b. From this opening, the hoisting machine and the car in the hoistway are monitored and the hoisting car is monitored. Release the machine's brakes and let the car land on the nearest floor.

Next, in order to return the door opening lock device to a normal state, the unlock key 18 is inserted between the three-way frame and the door hanger 4 with the up and down directions opposite to each other.
By pushing up the lock lever 10 via the locking portion 10a, the fitting state between the locking member 10c and the notch portion 12a is released, and the door panel 1 is returned to the state shown in FIG.
a is moved to the right side in the figure to lock the door interlock 3.

As described above, according to the present embodiment, the door panel 1a is opened using the unlock key 18 and the door panel 1b is opened at a narrow distance of 125 mm between the door panel 1b during rescue work and maintenance work. Can be easily and reliably set and maintained.Safely monitor the hoist and car in the hoistway from this opening and gradually release the brakes of the hoist to move the car closer to the car. You can land on the floor.

[0025]

As described above, according to the present invention, when it becomes necessary to open the hall-side door panel and monitor the inside of the hoistway during rescue work, maintenance and inspection work, etc., the hall-side door panel is opened. It is possible to provide an elevator door opening lock device capable of setting an interval in a narrow range and securely locking the door.

[Brief description of the drawings]

1A and 1B show an embodiment of an elevator door release lock device according to the present invention, wherein FIG. 1A is a front view, and FIG. 1B is a view taken along line XX of FIG.

FIGS. 2A and 2B are enlarged views showing a door opening lock device in FIG. 1, wherein FIG. 2A is a front view showing a state when the door panel is fully closed, and FIG. 2B is a front view showing a state where the door panel is opened at a narrow interval; (C) is a plan view showing a locked state in which the door panel is opened at a preset interval, (d) is a front view showing the same, and (e) is a front view showing a state where the lock is released.

FIG. 3 is a rear view of a conventional hall-side door device.

[Explanation of symbols]

 1a, 1b Door panel 2 Door panel opening / closing mechanism 3 Door interlock 4 Door hanger 7 Base member 9 Shaft 10 Lock lever 11 Cushion material 12 Locking base 12a Notch 13a, 13b Ball plunger 14a, 14b, 15a, 15b Hole 16 Three-way frame 17 Rod 18 Unlock key

Claims (5)

[Claims] In a hall-side door panel opening / closing mechanism of an elevator, a lock lever is rotatably attached to a member that moves together with the hall-side door panel, and the lock lever is previously mounted on a fixing member supporting the door panel opening / closing mechanism. When the lock lever is rotated by one of the lock levers to lock the hole-side door panel when it is moved a short distance, and the door panel is unlocked by rotating the lock lever in the opposite direction. An elevator door opening lock device with a base attached. 2. The elevator door opening lock device according to claim 1, further comprising a ball plunger for holding the lock lever in the locked state and the unlocked position. 3. The door opening lock device for an elevator according to claim 1, wherein the lock base is configured to guide the lock lever to a lock position thereof. 4. An elevator door opening lock device according to claim 1, further comprising a member for restricting rotation of said lock lever. 5. An elevator door opening lock device according to claim 1, wherein a cushion member is provided between said lock lever and a member for restricting rotation of said lock lever. .