JP3126229B2 - Elevator door equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an elevator door apparatus and, more particularly, to an elevator door apparatus capable of mounting a wind noise preventing rectifying plate provided at an upper part of a car to reduce eddy noise of a high-speed elevator. About.

[0002]

2. Description of the Related Art In general, when the operating speed of an elevator is increased in a limited elevator hoistway, vortex noise around the elevator car increases and noise in the car room increases. In particular, in recent years, with high-floor floors and high-speed elevators, there is a demand for reduction of noise in the car room due to vortex noise surrounding the car.

[0003] As a conventional technique capable of reducing the noise in the car room due to the vortex noises surrounding the car, there is known a technique in which rectifying plates are provided above and below the car. As a conventional technique for mounting a current plate in relation to equipment on a car, for example, Japanese Utility Model Publication No. 63-33
A technique described in Japanese Patent Application Laid-Open No. 909/909 is known.

According to this prior art, a swing lever for opening and closing a door is provided with a step at a portion rotatably supported by a support shaft thereof, and is integrally formed in a stepwise manner. Are attached to the current plate.

[0005]

The prior art described above is
Since the step portion of the swing lever is hollow and the entire swing lever is integrally formed, the upper portion of the movable swing lever is arranged inside the rectifier plate in the direction of the car side. For this reason, in the above-mentioned prior art, the fixed surface of the current plate cannot be provided, and since the step portion rotates, a notch portion must be provided on the lower end surface of the current plate facing the step portion. It is.

For this reason, in the above-mentioned prior art, the lower end of the rectifying plate extends to the upper part of the hanger of the door, and it is difficult to rectify the air vortex at the upper part of the door, and the effect of the rectifying plate as a sound insulating plate is small. There is a problem that the current plate itself vibrates because the lower end of the current plate cannot be fixed.

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems of the prior art, and to fix a rectifier plate while avoiding a movable portion of a door opening / closing mechanism even when a rectifier plate is arranged inside a cab side of a swing lever. It is an object of the present invention to provide an elevator door device provided with a support structure of a rotary drive mechanism of a door opening / closing mechanism capable of mounting a rectifying plate so as to reduce noise in a car during high-speed traveling of an elevator.

[0008]

According to the present invention, the object of the present invention is to set the length of the swing lever to the length of the rotating shaft on which the lever is supported, and to connect the bearing of the rotating shaft to the door opening / closing mechanism. independently provided from the cab on a support beam for supporting the rotary drive mechanism, a rotary drive mechanism for giving the door torque to the rotating shaft, provided on the cab side inside the support beam, further
At the front of the support beam, the airflow in the upper part of the cab is regulated.
This is achieved by fixing the flowing current plate .

[0009]

Since the present invention has the above-described structure, a support beam for supporting the rotary drive mechanism of the door opening / closing mechanism can be provided at the front of the cab, and the support beam can be provided at the front of the cab. A rectifying plate can be attached to the bearing stand and the auxiliary beam provided on the support beam so as to face each other, whereby the rectifying plate can be prevented from being exposed to wind pressure during traveling of the elevator, and a door hanger can be provided. It is also possible to cover the part with the current plate.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of an elevator door device according to the present invention will be described below in detail with reference to the drawings.

FIG. 1 is a front view showing the structure of a first embodiment of the present invention, and FIG. 2 is a side view thereof. 1 and 2, 1 is a car room, 2 is a frame, 3 is an upper frame, 4 is a suspension frame, 5 is a lower frame, 6 is a car floor frame, 7 is an anti-vibration rubber, 8 is a car floor, 9 Is a door sill, 10 is an engaging element, 11 is a door, 12 is a rotation drive mechanism of a door opening / closing mechanism, 14 is a takeoff beam, 15 is a support beam, 1
6 is a door rail, 17 is a door hanger, 18 is a hanger roller, 19 is a sub-lever, 20 is a swing lever, 21 is a rotating shaft, 22 is a rotation drive lever, 23 is a bearing base, 27 is a connection lever, and 33 is an auxiliary frame. .

In the first embodiment of the present invention shown in FIGS. 1 and 2, a frame 2 supporting a car room 1 includes an upper frame 3, a suspension frame 4 disposed on the left and right sides of a door 11, and a lower frame. It is composed of a frame 5 and a car floor frame 6, and usually supports the car room 1 via a plurality of anti-vibration rubbers 7. The car room 1 is provided with a door sill 9 on the front side of a car floor 8, and a door 11 guided by an engaging element 10 is attached to the sill groove.

The rotary drive mechanism 12 of the door opening / closing mechanism is constituted by an electric motor 24 and pulleys 25 and 26, and each of the right and left suspension frames 4 for suspending the cab 1 is located at a position higher than the top 13 of the cab. In the illustrated example, it is supported by two support beams 15 arranged in the left-right direction at the front part of the longitudinal beam 14 attached to the suspension frame 4.

The door 11 is provided with a taking beam 14 or a supporting beam 1.
5 on the door rail 16 supported by the door hanger 1
7 and is driven by a door opening / closing mechanism.

The door opening / closing mechanism includes a sub-lever 19 attached to a door surface, a swing lever 20 connected to the sub-lever 19 by a rotating pin, a rotating shaft 21 having a shaft in the front-rear direction, a bearing stand 23 for supporting the rotating shaft, A rotation drive lever 22 fixed to the rear end of the rotation shaft 21, a connection lever 2 coupled to a pulley 26 driven by an electric motor 24
7 is provided.

In the above description, the electric motor 24 and the pulley 2
One of the support beams 15 that supports the rotation drive mechanism 12 of the door opening and closing mechanism constituted by the door opening and closing mechanism 5 and 26 is provided between the swing lever 20 and the rotation lever 22 so that the front surface thereof substantially coincides with the cab front surface. Be placed.

In this door opening / closing mechanism, the rotating shaft 21
Is supported by a bearing stand 23 provided on the support beam 15, and a swing lever 20 is fixed to the front end thereof at right angles to the axis.
One end of a rotary drive lever 22 is fixed to the rear side at a right angle to the axis. The door opening / closing mechanism includes a pulley 2
6 is transmitted to the other end of the rotary drive lever 22 via the connecting lever 27, whereby the rotary drive lever 2
2. The swing lever 20 is driven to open and close the door 11.

The pulley 26 is driven to rotate by a motor 24 via a belt or a chain provided between the pulley 25 and the pulley 26. A connection lever 27 is pin-connected to a side surface of the pulley 26. The engagement between the pulley 26 and the connecting lever 27
The connecting lever 27 may be pin-coupled to the end of a rotating arm (not shown) that rotates with the rotation of.

According to the first aspect of the present invention having the above-described structure,
In the door device according to the embodiment, when the pulley 26 is driven to rotate in the direction of arrow A, the mechanism units B and C move in the directions of arrows, respectively, and the door performs the operation of opening in the direction of arrow D. Become.

In the mechanism of the door device as described above, at least one support beam 15 is arranged on the front surface of the rotary drive lever 22, and the support base 15 is provided on the support beam 15, so that it is attached to this mechanism. The rectifying plate 30 is supported by the support beams 15.
And facing the front surface of each of the bearing stand 23,
It can be fixed with a plurality of bolts 31 and 32.

In the first embodiment of the present invention, the beam 1
An auxiliary beam 33 can be provided at a position below the front end of 4 and near the upper part of the door hanger 17, and the current plate 30 ′ can be fixed to the front side surface of the auxiliary beam 33.

According to the first embodiment of the present invention, as described above, the straightening plate 30 having no cutout can be attached, and the straightening plate 30 'can be provided up to the door hanger 17.

According to the first embodiment of the present invention, the effect of rectifying the eddy current of the rectifying plate can be improved, the generation of noise due to the eddy current can be suppressed, and the vortex sound is generated from the upper part of the door to the cab. Therefore, noise in the cab can be reduced.

In the first embodiment of the present invention described above, the current plate is divided into current plates 30 and 30 ', and they are mounted on the upper and lower sides of the rotating shaft 21, respectively.
When the swing lever 20 is attached to the rotating shaft 21 after the rectifying plate is attached, the rotating shaft 21 is attached to the rectifying plate.
Rectifying plates 30 and 3
0 ′ can be integrally formed.

FIG. 3 is a front view showing the structure of the second embodiment of the present invention. In FIG. 3, reference numerals 34 and 34 'denote rotating disks, reference numeral 35 denotes a connecting band, and other reference numerals are the same as those in FIGS.

In the first embodiment of the present invention described above, two swing levers for driving two doors are driven by one pulley. However, the first embodiment of the present invention shown in FIG. In the second embodiment, each of two doors is driven by each of two rotating disks rotating in opposite directions to each other.

FIG. 3 shows a second embodiment of the present invention in which a rotating disk 21 is fixed to a swing lever 20 and is provided on the left and right sides from the cab to the door. The difference from the structure of the first embodiment of the present invention described above is in that the structure of the first embodiment of the present invention is configured such that 34 and 34 'are fixed.

The rotating disks 34 and 34 'are rotated in opposite directions when the door is opened and closed, respectively.
A connecting band 35 composed of a chain or a belt is wound around in a cross. Thereby, one of the rotating shafts 21
The door opening / closing operation can be performed only by providing door driving power only to the door.

Such an embodiment of the present invention can be mounted in the same manner as in the case of the above-described first embodiment of the present invention, and can provide the same effects. In the second embodiment of the present invention, since the above-described structure is provided, the degree of freedom for the arrangement of the electric motor 24 and the pulley 26 constituting the door opening / closing mechanism 12 can be increased, and the driving unit is provided in the cab 1. It is no longer necessary to arrange in the center of the cab 1, which makes it possible to secure a maintenance work space and to secure a space for rescuing passengers from the ceiling of the cab 1 when the elevator fails. It becomes possible to arrange in a strong position.

The first and second embodiments of the present invention described above are:
The support beam 15 that supports the rotation drive mechanism of the door opening / closing mechanism is
Although the present invention is provided, the present invention may support the rotary drive mechanism of the door opening and closing mechanism with a single beam as long as it does not hinder the operation of the rotary drive mechanism.
What is necessary is just to be able to arrange on the cab side of the swing lever and at a position substantially coincident with the front of the cab.

[0031]

As described above, according to the present invention, by arranging a support beam on the front side of a rotary lever or a rotating disk, a straightening plate can be directly mounted on a support base attached to the support beam or the support beam. It becomes possible to fix, as a result, it is possible to install the rectifier plate even to the front side of the door hanger without providing a cutout portion in the rectifier plate, and rectification of the eddy current by the rectifier plate is sufficiently achieved, and The noise of the swirling noise from the upper part of the door can also be achieved, and the noise in the car cabin can be reduced even when the elevator is running at high speed.

[Brief description of the drawings]

FIG. 1 is a front view showing the structure of a first embodiment of the present invention.

FIG. 2 is a side view showing the structure of the first embodiment of the present invention.

FIG. 3 is a front view showing the structure of a second embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Car room 2 Frame 3 Upper frame 4 Suspension frame 5 Lower frame 6 Car floor frame 7 Anti-vibration rubber 8 Car floor 9 Door sill 10 Engager 11 Door 12 Rotary drive mechanism of door opening / closing mechanism 14 Beam 15 Support beam 16 Door rail 17 Door hanger 18 Hanger roller 19 Sub-lever 20 Swing lever 21 Rotating shaft 22 Rotating drive lever 23 Bearing stand 27 Connecting lever 33 Auxiliary beam

──────────────────────────────────────────────────続 き Continuation of the front page (56) References Patent 115691 (JP, C2) Jikken 93-1151 (JP, Y1) (58) Fields investigated (Int. Cl. ⁷ , DB name) B66B 11/00 -13/30

Claims (6)

(57) [Claims] 1. An elevator door apparatus comprising an elevator cab doorway drive mechanism comprising a pulley and a link mechanism driven by an electric motor, wherein the lever controls the length of a swing lever driving the door. The length up to the rotating shaft, the bearing of the rotating shaft is provided on a support beam that supports the rotating drive mechanism of the door opening and closing mechanism, between the rotating drive mechanism that applies door opening and closing torque to the rotating shaft and the swing lever The support beam is provided in front of the support beam.
A rectifying plate that rectifies the air flow above the cab is fixed to the surface
An elevator door device characterized by being performed . 2. An elevator door apparatus comprising an elevator cab doorway drive mechanism comprising a pulley and a link mechanism driven by an electric motor, the swing lever driving a door, and a rotation supporting the lever at right angles to an axis. A shaft, a rotation drive mechanism of a door opening / closing mechanism that applies a rotation torque to the rotation axis, a support beam for supporting the rotation drive mechanism of the door opening / closing mechanism, and a bearing stand for the rotation shaft provided on the support beam. A rotation drive mechanism for applying a door opening / closing torque to the rotation shaft ; and the support beam between the swing lever and an air flow in the upper part of the cab in front of the support beam.
A rectifying plate for rectifying air is fixed to the elevator door device. 3. A bearing base provided on the support beam such that the rotating shaft drives the swing lever at a front end thereof, and a rear end thereof receives a rotating torque from a rotation driving mechanism of the door opening and closing mechanism. The elevator door device according to claim 1, wherein the elevator door device is supported by a member. 4. The swinging bar according to claim 1, wherein a front surface of the support beam is arranged on a cab side of the swing lever so as to substantially coincide with a front surface of the cab.
The elevator door device as described. 5. The gantry according to claim 1, wherein the support beam is attached to a front side of the cab of a beam which is attached to both sides of a car frame supporting the cab in a front-rear direction. Elevator door device. 6. further comprising an auxiliary beam to the support beams, elevator door device according one of claims 1, characterized in that for fixing the rectifying plate reaching the site of door hangers to the auxiliary beam 5.