JPS5930638B2 - elevator door equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an elevator door device.

Elevator door devices operate when the car has landed normally at the landing, that is, when the car has stopped and the floor of the car has landed within a landing error that is safe for boarding and alighting with respect to the floor of the landing. Generally, the car door and the landing door are engaged so that they can be opened and closed together.

Additionally, the door to the landing is locked unless the car is stopped at that landing.

However, car doors are usually not equipped with locking devices, and passengers cannot manually open the car door when the car is going up or down, or when the car stops due to an abnormal power outage between landings. There is a possibility of an accident where the door opens and the person falls.

The present invention aims to solve the above-mentioned drawbacks and provides an elevator door device in which the car door is unlocked only when the car has landed normally on the floor.

An embodiment of the present invention will be described below with reference to FIGS. 1 to 4.

In the figure, 1 is the elevator car, 2 is the car door consisting of a sliding door, 3 is the actuating body mainly composed of a bell crank with a bending part pivoted near the 20th door of the car, and 4 is the operating body. 5 is a locking device whose main body is a hook bar 6 whose middle part is pivotally attached to the door 2 of the car, and 6a is a locking device which is attached to one end of the hook bar 6. The formed hook, 7 is a rod whose both ends are pivotally connected to the other end of the hook rod 6 and the pivoting end of the 10th latch 4 of the actuating body 30, and 8 is a locking piece fixed to the heel 1. A slope 8a is provided corresponding to the hook rod 6 and descending toward the pivot point thereof.

Numeral 9 is a biasing body made of a compression coil spring that biases the actuating body 3 clockwise in FIG. 4, and 10 is provided on the car door 2 to prevent clockwise rotation of the actuating body 3 at a predetermined position. A blocking piece 11 is provided on the car door 2 to prevent the operating body 30 from rotating counterclockwise at a predetermined position, and a block 12 is pivotally attached to the car door 2 at one end and a cam is attached to this part. 12a is a known drive device.

Reference numeral 13 denotes an engagement lever whose one end is pivotally connected to the car door 2, a roller that abuts the cam 12a is pivotally connected to the middle part, and the other end is separated from the 10th roller 4 and is attached to the corner door. The 25th lug 14, which is placed closer to the second door pocket, is pivotally mounted.

15 has a cam 12a member and a retaining lever 1 at both ends.
a spring held at 3 and pressing them together; 1;
51 is an engagement mechanism consisting of a 10th lug 4, a cam 12a1 engagement lever 13, a 20th lug 14, etc., 16 is a landing, and 17
is a landing door consisting of a sliding door that opens and closes, and is well known;
The door closer is always biased in the door closing direction.

18 is a fixed engagement plate provided on the door 17 of the landing;
It is arranged between the 20th and the 4,140.

A contact plate 19 is a movable engagement plate arranged along the fixed engagement plate 18, and is arranged between the fixed engagement plate 18 and the position corresponding to the 10th-ra 4, and is located at the center in the width direction by the axis along the longitudinal direction. The portion is pivotally connected to the fixed engagement plate 18.

A torsion spring 20 is attached to the pivot portion of the abutting plate 19 and biases it counterclockwise in FIG. A stop piece 22 is provided on the fixed engagement plate 18 and prevents clockwise rotation of the abutment plate 19 at a predetermined position; 23 is a well-known landing lock device; Board 1
9 and when this is in the position shown by the solid line in FIG. 1, the landing door 17 is locked, that is, the state shown in FIG. 3, and the contact plate 19 is in the position shown by the chain line in FIG. When the door is parallel to the engagement plate 18, the landing door 17 is unlocked.

In other words, when the car door 2 is fully closed, the
- The rollers 4 and 14 are arranged at the positions indicated by solid lines in FIG. 4, and a gap A is formed between them.

Further, in this state, the locking device 5 is in the locking position shown by the solid line in FIG. 4, and a gap is formed between #16a and the locking piece 8.

In addition, when the landing door 17 is fully closed, the fixed engagement plate 18
and the abutment plate 19 are arranged at the position shown by the solid line in FIG. 1, and the width of both is dimension B.

A gap C1 is formed between the 20th lug 14 and the fixed engagement plate 18, and a gap C2 is formed between the 10th lug 4 and the contact plate 19.

In addition, in this state, the landing door 17 is locked by the landing lock device 23.
is locked by.

Therefore, when the heel 1 passes through the landing 16 with the car door 2 and the landing door 17 fully closed, the first. The 20th rollers 4 and 14 move on the outside of the fixed engagement plate 18 and the contact plate 19 without coming into contact with them.

Then, the car 1 normally lands on the landing 16 and the drive device 12
When the car door 2 is energized, the car door 2 starts to open, and at the same time, the cam 12 displaces the 20th-ra 14 in the direction of the 10th-ra 4.

The tenth lug 4 also moves in the door opening direction and presses the contact plate 19 against the torsion spring 20 by the urging force of the urging member 9.

As a result, the abutment plate 19 moves a distance B2, and the width of the abutment plate 19 and the fixed engagement plate 18 becomes B1.

This movement of the abutting plate 19 causes the hall locking device 23 to perform an unlocking operation.

When the car door 2 is further opened, the 10th lug 4 is pressed against the contact plate 19 and is displaced by a distance AI against the biasing body 9 from the position shown by the solid line in FIG. 4 to the position shown by the chain line. , the locking device 5 is unlocked by the operation of the operating body 3.

Therefore, the car door 2 continues to open without being prevented from opening, and during this time the 20th lug 14 moves in the direction of the 10th lug 4, and the distance between them is A2, that is, the width B1.
The fixed engagement plate 18 and the abutment plate 19 are held together.

In other words, the distance the hook 6a moves to reach the locking piece 8 is the distance C2-1-B that the car door 2 moves after the door starts opening.
By setting the value larger than 24-A I, the unlocking/opening operations of the car door 2 and the landing door 17 can be obtained without any trouble.

Now, if the car 1 has stopped abnormally and a passenger attempts to manually open the car door 2, the locking device 5 will not unlock because the tenth lug 4 does not touch the contact plate 19.

Therefore, when the car door 2 is opened by the distance, the hook 6
Since a engages with the opening piece 8, further opening of the door is prevented.

Therefore, accidents caused by manually opening the car door 2 to the extent that passengers can escape can be prevented.

Moreover, since such an action can be achieved by a simple mechanical device without requiring an electrical actuation device, accidents can be prevented with high reliability.

In this embodiment, if the biasing force of the biasing body 9 is set to be smaller than that of the torsion spring 20, the 10th lug 4 will move when the contact plate 19 is in the position shown by the solid line in FIG. Therefore, a similar effect can be obtained by making the distance slightly larger than C2+A1.

As explained above, the present invention provides a landing door with an abutment plate corresponding to the normal landing range of the car, and also forms part of an engagement mechanism provided on the car door that engages with the abutment plate. An actuating device is disposed to unlock the car locking device by abutting the abutment plate upon the initial opening operation of the car door.

Thereby, an elevator door device is realized which can prevent accidents caused by a passenger manually opening a car door when the car stops abnormally by using a simple device and with high reliability.

[Brief explanation of drawings]

FIG. 1 is a cross-sectional plan view of essential parts of an elevator showing an embodiment of an elevator door device according to the present invention, and FIG.
3 is a front view of the landing side of FIG. 1, and FIG. 4 is an enlarged view of the main part of FIG. 2. 1... Car, 2... Car door, 3... Operating body, 5
. . . lock device, 151 . . . engagement mechanism, 16 . . . landing, 17 .

Claims (1)

[Claims] 1. A landing door installed at the landing, a car door installed on the car that faces the main part of the landing door when the car lands normally at the landing, and a car door installed on the landing door. A contact plate protruding from the furnace side 5 of the corner facing the lever landing door and arranged corresponding to the normal landing range of the corner; an engaging mechanism that operates during the initial opening operation of the door and clamps the abutment plate, and a movable mechanism that is provided at the lug and prevents the door opening operation of either of the fully closed doors at a predetermined initial position. The above-mentioned abutment is composed of a locking device and a movable body forming a part of the above-mentioned engagement mechanism, and is provided on the above-mentioned corner door, and →U is connected to the above-mentioned locking device and is clamped by the clamping action of the above-mentioned engagement mechanism. An elevator door device comprising: an actuating body that unlocks the locking device before the corner door, which is displaced by contact with a plate and operates to open the door, reaches the predetermined initial position.