JPH0632572A - Door of elevator car - Google Patents

Abstract

PURPOSE:To tightly close up a car so as to prevent invasion of noise by guidedly moving guide rollers and guides provided on the upper and lower parts of doors through guide rails and guide grooves provided on the car side, and curving the end parts of the door closing side of the guide rails and the guide grooves on the cage side. CONSTITUTION:The doors 2 of an elevator car are suspended by engaging hanging plates 6 rotatably supporting rollers 5 with guide rails 13... provided on a fitting plate 13 on the car side through the rollers 5. Stable opening/closing of the doors 2 is realized by engaging guides 7... provided on the lower end parts of the doors 2 with the guide grooves 14... of a threshold 8 provided on the car. In this case, the extreme end parts of the respective guide rails 13 and the respective guide grooves 14, i.e., the end parts contacted with the rollers 5 and the guides 7 at closing the doors 2, are respectively bent on the cage side so as to form curved parts 15. Hereby, the doors 2 are moved on the cage side through the rollers 5 and the guides 7 at the time of closing the doors, the doors are pressed against seal material provided on the peripheral part of the opening of the car so as to tightly close up the car 2.

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION This invention relates to elevator car doors.

[0002]

2. Description of the Related Art A conventional elevator car door will be described with reference to FIGS.

In the car door 2 for opening and closing the entrance and exit of the car 1 of the elevator, a roller 5 is fitted on a guide rail 4 provided on a mounting plate 3 on the car side, and is suspended via a hanging plate 6 on the guide rail 4.
A guide 7 is provided at the lower part of the door and is fitted in a guide groove 9 of a sill 8 to guide opening and closing of the door 2 together with the guide rail 4.

In the case of a double-sided door, the door contact portion of the door 2 has metal or rubber door contacts 10 and 10 attached to the left and right door contact surfaces when the doors 2 and 2 are closed. We are measuring the tightness of. The same applies to single-sided doors.

[0005]

[Problems to be Solved by the Invention] In order to open and close the door,
There must be a gap between the door and the door on the side of the cab. That is, there are gaps between the door 2 and the door mounting plate 3, between the guide 7 provided on the door 2 and the guide groove 9 of the sill, and between the left and right pillars of the doorway of the car and the door.

[0006] In addition, in a door stop with metal or rubber stuck,
When the door is closed, a slight gap 11 is generated on the door-contact surface due to distortion and deterioration of the material.
Wind noise generated when the car travels in the hoistway leaks into the car, which causes noise in the car, which gives passengers an unpleasant feeling. In particular, this phenomenon becomes more prominent in an elevator traveling at a higher speed. When the car is moved up and down, air flows in through such a gap, and wind noise and hoistway noise enter the inside of the car 2 to generate noise in the car. The present invention intends to provide a car door having a better hermeticity in order to solve the above problems.

[0007]

In order to achieve the above object, the invention according to claim 1 divides the guide rail and the guide groove of the sill according to the number of rollers or guides of the door, and places them in the closed position of the door. By curving the corresponding guide rails and guide grooves toward the cab side, the door is brought closer to the cab side and closed.

According to a second aspect of the present invention, as a rubber seal for a door stop, a hollow rubber seal is attached to a door contact surface, and when the car is running with the door closed, an air compressor is provided which is operated by the running of the car. Then, the compressed air is sent to the rubber seal of the door, and the rubber seal is expanded to close the gap. According to the invention of claim 3, a wind pressure plate (wing) that generates a force for pressing the car door toward the car by the traveling wind of the car is provided on the front surface of the car door.

[0009]

According to the first aspect of the present invention, since the guide rail and the guide groove are curved at the front end portions (door closing position), the door is guided by the guide rail and the guide groove. Move to, eliminate the gap between the door and the car room or threshold, and seal the car.

According to the second aspect of the present invention, by providing the hollow door stopper rubber, when the door is closed during traveling, the air compressor operated by the traveling of the car operates and the rubber seal (door contact rubber) is provided. Inflate and close the gap in the door stop.

According to the third aspect of the present invention, the wind pressure plate provided on the front surface of the door causes a lift force (down force in this case) in the direction of pressing the door when moving up and down, and the door is pressed against the car side to close the gap. When landing, this lift becomes zero, and the door returns to its original position and can be opened and closed.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The invention described in claim 1 will be described based on the embodiments shown in FIGS. A guide rail 1 in which a door 2 is provided on a car-side mounting plate 3 by a suspension plate 6 to which a roller 5 is fixed.
3, 13, ... Suspend on top. On the other hand, the lower ends of the doors 2 and 2 are provided with guides 7, 7 ... And the sill 8 is provided with guide grooves 14, 14 ... Corresponding to the guides 7, 7.

The guide rails 13, 13 ... and the guide groove 14,
The curved portion 1 is formed by bending the front end portions of 14 ..., That is, the end portions where the roller and the guide contact each other when the door is closed, toward the cab side, respectively.
5, 15, ... Are formed.

Further, seal members 16 and 17 are provided on the surfaces of the car mounting plate and the car entrance / exit column facing the door 2, and a seal having a length equal to the width of the door 2 on the car room side of the guide 7. A material 18 is provided.

When closing the door 2, the guide rails 13, 1
The rollers 5 and 5 and the guides 7 and 7 are guided by 3 and the guide grooves 14 and 14, and the door 2 moves to the cab side at the door closed end position.

The movement of this door to the car side and the sealing material 1
6, 17, 18 will seal the car in the closed position of the door, i.e. during elevator. The above is for the double swing door, but the same applies to the single swing door. Next, the invention of the hollow door stop according to claim 2 will be described based on the embodiment shown in FIGS. 6 (a) and 6 (b).

In a double door car, a hollow rubber seal 19 is attached to the entire door contact surface of one door 2 as a door contact, an air compressor 20 is provided above the door, and a blower pipe 21 thereof is provided.
Is connected to the hollow rubber seal 19. The hollow rubber seal 19 is assembled in the groove 22 provided in the door 2 and the joint surface is bonded. The air compressor 20 is provided with a roller 24, which is in contact with a guide rail 23 of the car and is rotated by the running of the car, in the car.

When the door is closed and the car starts to run, the air compressor 20 operates and air flows into the hollow rubber seal 19 through the blower pipe 21, and the rubber seal expands, so that the space between the door contact surfaces is expanded. Shut up. In addition, a relief valve is provided in the blower duct so that when the pressure exceeds a specified value, the relief valve opens and discharges air.

The invention of the wind pressure plate shown in claim 3 is shown in FIG.
A description will be given based on the embodiment shown in FIG. Wings 26 that are convexly warped toward the surface of the door 2 are provided on the front surface of the door as a wind pressure plate. An arm 27 (corresponding to the suspension plate 6) for suspending the door 2 is provided with a movable portion 28 that slides the upper portion of the door 2 so that the door 2 can slide. The movable portion 28 has a groove provided on the door side of the arm 27, and a return spring 29 is provided.

With such a structure, a lift force (down force) in the direction of the arrow 10 is generated on the wing 26 when the car is moved up and down. By this force, the movable portion 28 of the arm 27 slides in the direction of the arrow, and the door 2 is pushed toward the cab.

Sealing material 16, 17, 18 attached to the door 2
(The same as the one in FIG. 2) eliminates a gap between the door and the cab side, and reduces noise due to inflow of air and noise from the hoistway. Since the lift force becomes 0 when landing, the return spring 29 provided in the movable portion 28 returns the door 2 to the normal position (the chain line portion in the figure) and the door can be opened.

As another embodiment of the movable portion 28 of the door, as shown in FIG.
Alternatively, the door 2 may be hung on this. With this configuration, the two houses move to the cab side due to the wind pressure, and return to their original positions when the wind pressure is zero.

[0023]

As described above, according to the present invention, it is possible to use the elevator comfortably because it is possible to seal the car during elevator raising and lowering and prevent noise from entering.

[Brief description of drawings]

FIG. 1 is a front view of a car door according to the invention of claim 1. FIG.

FIG. 2 is a side view of FIG.

FIG. 3 is a view taken along the line III-III in FIG.

FIG. 4 is a view taken along the line IV-IV of FIG.

5 is a view taken along the line VV of FIG.

FIG. 6 (a) is a front view of a car according to the second aspect of the invention. (B) is a partial cross-sectional view of (a).

FIG. 7 (a) is a side view of a car door according to the invention of claim 3; (B) is a partial view of another embodiment of the invention of claim 3.

FIG. 8A is a front view of a conventional car door.
(B) is a partial cross-sectional view of (a).

9 is a side view of FIG. 8 (a).

[Explanation of symbols]

 2 ... Door 4, 13 ... Guide rail 5 ... Roller 6 ... Hanging plate 7 ... Guide 9, 14 ... Guide groove 10 ... Door contact 15 ... Curved part 16, 17, 18 ... Seal 19 ... Hollow door contact 20 ... Air compressor 26 ... Wind plate (wing)

Claims (3)

[Claims] 1. An elevator car door having guide rails for guiding upper and lower guide rollers and a guide and a guide groove on the car side, respectively, wherein the guide roller and the guide are respectively provided at a closed position of the door. An elevator car door, characterized in that the ends of the guide rail and the guide groove that are in contact with each other are curved toward the car room. 2. An elevator car door having a car door provided with a door contact rubber, wherein the door contact rubber is a hollow rubber seal, and a roller that comes into contact with an elevator guide rail and rotates together with the car, An elevator car door characterized in that an air compressor in which a drive shaft is connected to a rotation shaft of a roller is provided on a car side, and the air compressor and the hollow rubber seal are connected by a blower pipe. 3. A car door of an elevator, wherein a door is provided in the car of the elevator to constitute a doorway for users, and the door of the door is pressed against the car side when the elevator is traveling. An elevator car door characterized by a wind pressure plate on the front.