JPH0346988A - Elevator door engaging device - Google Patents

Abstract

PURPOSE:To enable the simultaneous operation of a floor door and a cage door by holding the engaging piece of the floor door by the rotational movement of engaging rollers disposed at the cage door, around a fulcrum. CONSTITUTION:An engaging plate 21 fitted at a cage door 1 is provided with engaging rollers 22a-22d installed by a cross-shape lever 24 in such a way as to be disposed diagonally around the fixed axis 23 of the engaging plate 21. A lever 25 for transmitting the driving force of a door motor is rigidly fixed at the lever 24. Stopper pins 26a, 26b are also fitted at the engaging plate 21 so that the rotational movement of the engaging rollers 22a-22d becomes lower than the fixed quantity. When the motor is rotated clockwise, the rotation of the engaging rollers 22a-22d is converted into the anticlockwise turning force F1. The turning force F1 is converted by the stopper pin 26a into horizontal force F2 for moving the cage door 1 in the opening direction at the short engaging state completing time when the engaging rollers are releasing the lock of a floor door, so that the cage door 1 and the floor door are moved simultaneously.

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to an elevator door engagement device.

[Conventional technology]

A conventional engagement device has a structure as described in, for example, Japanese Unexamined Patent Publication No. 49-76248.

[Problem to be solved by the invention]

The prior art will be explained with reference to FIGS. 3 to 6.

Figure 3 is a front view showing the overall structure of the elevator car;
4 is a schematic side view of FIG. 3, FIG. 6 is a detailed view of the section ``■'' in FIG. 3, and FIG. 5 is a plan view of FIG. 6. In the figure, 1
is the elevator car door, 2 is the door shoe attached to the bottom of car door 1, 3 is the hanger attached to the top of door l, 4 is the rail of hanger 3, 5 is the car frame, 6 is the car frame 5
The motor 7 installed in the motor 7 is a chain sprocket, and the motor 6 and the chain sprocket 7 are connected by a chain 8. Reference numeral 9 denotes a link, which is rotatably supported on the car frame 5 by a shaft 1o, whose upper end is connected to the chain sprocket 7 by a lever 11, and whose lower end acts as a movable cam of the engagement roller 15. It is connected to the car door 1 via a small link 12 and an engagement plate 13. In the elevator configured as described above, when the motor 6 rotates clockwise, the chain
Sprocket 7 is also rotated clockwise.

The movement is transmitted to the lever 11, the link 9, the small link 12, and the engaging plate 13, thereby moving the car door 1, the engaging rollers 15, and the floor door 3o engaged with the engaging rollers 16 to the leftward door in the figure. Drive in the opening direction.

In the case of door closing operation, this operation is reversed by reversing the motor 6. Furthermore, the engagement plate 13 is connected to the liner 14.
It is attached to the car door 1 via the screw, and the engagement distance Ω with the floor door 30 is adjusted. A door shoe 31 is provided at the bottom of the floor door 30, a hanger 32 is provided at the top, and the floor door 30 moves on a rail (not shown). The floor door 30 is provided with engaging elements 33 and 34, and when the engaging roller 16 moves in the door opening direction, it hits the engaging element 33. When the engaging element 33 moves to a position where it touches the engaging element 34, the floor door 30 is unlocked. Moreover, the engagement roller 15 is.

Due to the cam action of the small link 12, the small link 12 moves to a position where it hits the engaging element 34, and the engagement is completed. Through this series of operations, the floor door 30 opens in conjunction with the movement of the car door 1.

In this configuration, in order to unlock the floor door 30, the distance a until the engaging element 33 hits the engaging element 34 is added to the allowance clearance b between the engaging plate 13 and the engaging element 33. The car door 1 opens before the floor door 30 by a distance. Therefore, when the first floor door 30 starts to open, the load applied to the motor 6 suddenly changes and prevents smooth door opening/closing operation, so it is necessary to control the driving force of the motor 6.

An object of the present invention is to eliminate the deviation in relative position between the heel door and the floor door.

[Means to solve the problem]

The above object is achieved by preventing the car door from moving until the floor door is unlocked.

[Effect]

The engagement device is attached to the door, and the engagement roller is installed diagonally around the fulcrum, and when the door opening/closing device starts to drive in the opening direction, the engagement roller moves the engagement element to the floor door locking device. Rotate in the direction of release. The car door does not move until the engagement roller pushes the engagement element to unlock the floor door, and the floor door and the car door move simultaneously when the engaged state is completed.

〔Example〕

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

7 is a front view corresponding to FIG. 3, FIG. 1 is a detailed view of the construction part in FIG. 7 corresponding to FIG. 6, and FIG. 2 is a plan view of FIG. 1 corresponding to FIG. 5.

Attach the engagement plate 21 to the car door 1 via the liner 14,
Engagement rollers 22a to 22d are connected to the engagement plate 21.
They are installed using a cross-shaped lever 24 so that they are arranged diagonally around a shaft 23 fixed to the center. A lever 25 for transmitting the driving force of the door spring 6 is fixed to the cross-shaped lever 24. Furthermore, stopper pins 26a and 26b are attached to the engagement plate 21 in order to keep the rotational movement of the engagement rollers 22a to 22d below a certain amount.

When the elevator reaches the floor as shown in FIG. 8, the motor 6 rotates clockwise and the driving force is transmitted to the lever 25 via the link 9 and the small link 12. The force received by the lever 25 is converted into a force F1 that causes the engagement rollers 22a to 22b to rotate counterclockwise about the shaft 23. When the engagement roller moves a horizontal distance a+b to unlock the floor door 30 and complete the engagement state, the rotational force F1 is applied to the stopper
The pin 26a converts the force into a horizontal force F2 that moves the car door 1 in the opening direction, and the car door 1 and the floor door 30 move simultaneously.

In the case of door closing operation, the driving force of the door motor 6 is applied to the link 9. Small link 12. The rotational force F is transmitted to the engagement rollers 22c and 22d via the lever 25 and the cross-shaped lever 24.
8, and after clamping the engagers 33 and 34, the stopper
It is converted into a horizontal force F4 by the pin 26b, and moves the car door 1 and the floor door 30 at the same time.

When the elevator travels and passes through each floor, the cross-shaped lever 24 is held down by the balance springs 27a and 27b attached to the spring fulcrum 28 fixed to the engagement plate 21, and the engager 33 attached to the floor door 30 is held down by the balance springs 27a and 27b. 34 is ensured to ensure safety. In addition, the balance spring 27
The rotational forces by a and 27b are set to be smaller than the rotational forces F1 and F3 of the engagement rollers so that they do not interfere with the engagement operation.

FIG. 9 shows an example in which the door is driven by a belt or chain.

〔Effect of the invention〕

According to the present invention, since the car door and the first floor door open simultaneously after the locking device of the floor door is released, the amount of control of the car door by the door opening/closing device and the amount of follow-up of the floor door are reduced. Since it is one-on-one, control becomes easier.

[Brief explanation of drawings]

Fig. 1 is a front view of an engagement device showing an embodiment of the present invention, Fig. 2 is a plan view of Fig. 1, Fig. 3 is a front view of a conventional car, and Fig. 4 is a plan view of Fig. 3. 5 is a plan view of the engagement device section of the conventional example, FIG. 6 is a front view of FIG. 5, FIG. 7 is a front view of the car according to an embodiment of the present invention, and FIG. FIG. 9 is a side view and FIG. 9 is a front view of another embodiment of the present invention. DESCRIPTION OF SYMBOLS 1... Car door, 3... Hanger, 21... Engagement plate, 22a-22d... Engagement roller, 26a, 26b.
...Stotsu No. 30 Pole 7 Nagiha Zukan 6 Pole

Claims (1)

[Scope of Claims] 1. An elevator engagement device in which an engagement roller that engages with an engagement element of a floor door to electrically open and close the floor door is provided on the car door side, wherein a fulcrum is attached to the car door. An engagement device for an elevator door, characterized in that the engagement element of the floor door is clamped by rotational movement of the engagement rollers arranged to sandwich the engagement roller. 2. The relative movement distance of the engagement roller that rotates during the door opening operation with respect to the car door is set equal to the movement distance of the engagement element that unlocks the floor door, and the engagement roller 2. The elevator door engagement device according to claim 1, further comprising a stopper for restricting movement of the elevator door. 3. The elevator door engagement according to claim 1 or 2, characterized in that the door is driven via a belt or a chain, and includes an engagement roller that rotates by engaging with the belt or the chain. Device.