JP3994639B2 - Elevator door equipment - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an apparatus for adjusting the tension of a belt that transmits a driving force of an elevator door motor.
[0002]
[Prior art]
Main parts of a conventional elevator door device will be described with reference to the drawings.
3 is a front view, and FIG. 4 is a plan view of the main part. In the figure, 1 is a door motor attached to the base 2, 3 is a support frame fixed to the elevator car 4, and the base 2 is attached to be adjustable by bolts 5 through long holes, and the angle 6 is welded. It is fixed. A bolt 7 is fixed to the angle 6, and the tip of the bolt penetrates the bent portion of the base 2 and is fixed to the base 2 by a nut 8.
[0003]
Reference numeral 10 denotes a first pulley fixed to the drive shaft of the door motor 1, and 11 denotes a second pulley pivotally attached to the car 4, around which a V belt 12 is wound. A third pulley 13 is coaxial with the pulley 11 and is a toothed pulley. A toothed belt 14 is wound around the pulley 13 and a bracket 16 of the door 15 is fixed thereto. 17 is a hanger for the door 15, 18 is a hanger roller, and 19 is a hanger rail.
[0004]
In this door device, when adjusting the tension of the V-belt 12, the bolt 5 is loosened, the nut 8 is turned to move the base 2 and the door motor 1, and the bolt 5 is tightened at the optimum tension position.
[0005]
[Problems to be solved by the invention]
In the belt tension adjusting method according to the above-described prior art, it takes time to set the bolt 7 and the nut 8 and the shape of the base 2 is complicated. Further, at the time of adjustment, since the bolt 5 is loosened, there is a problem that when the V belt 12 is stretched, the door motor 1 and the base 2 are inclined obliquely, and the centering of the V belt 12 becomes difficult.
[0006]
[Means for Solving the Problems]
In the present invention, the base is moved by making holes in the base and the frame, passing a string-like binder through these holes, and pulling the binder to squeeze. Furthermore, in the present invention, by providing a plurality of pins between the frame and the base, the moving direction of the base is limited and the base is prevented from being inclined.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
An embodiment of the present invention will be described with reference to FIGS. 1 and 2 correspond to FIGS. 3 and 4, and the same reference numerals as those in FIGS. 3 and 4 denote the same components.
In the figure, 20 is a hole made in the base 2, and 21 is a hole made in the frame 3.
[0008]
In this embodiment, when adjusting the tension of the V belt 12, the roll pin 22 is driven into a hole formed in the base 2. The roll pin 22 is positioned so as to contact the side surface of the frame 3 and restricts the moving direction of the base 2 only to the longitudinal direction of the frame 3.
Next, the bolt 5 is loosened, the binder 23 having one end in a ring is passed through the holes 20 and 21, and the other end is passed through the ring and squeezed. As a result, the base 2 moves to the left in FIG. When the tension of the V-belt 12 becomes optimal, the bolt 5 is tightened and the binder 23 is removed.
[0009]
According to this embodiment, it is not necessary to make the shape of the base 2 complicated as in the prior art, and the operation is easier and faster than using the bolt 7 and the nut 8. In addition, the binder 23 is light and inexpensive, and can be easily handled even when the tension is readjusted.
Further, since the roll pin 22 is used, the door motor 1 and the base 2 do not tilt, so that the V belt 12 can be easily centered.
[0010]
In the above-described embodiment, the binder 23 is used. However, other binders may be used as long as they are flexible. Further, as shown in FIG. 2, if holes 20 are provided on both the left and right sides of the base 2, the present invention can be applied to the opposite site. Further, the binder 23 is passed through the holes of the base 2 and the frame 3, with the V-belt 12 sandwiched, one on the side where the first pulley 10 is attached and the other on the side where the second pulley 11 is attached. It is only necessary to make holes and let the binder 23 pass through these holes, and the present invention is not limited to the base 2 and the frame 3.
[0011]
【The invention's effect】
As described above, according to the present invention, the belt tension adjustment operation can be performed easily and quickly.
[Brief description of the drawings]
FIG. 1 is a front view showing an embodiment of the present invention.
2 is a plan view of FIG. 1. FIG.
FIG. 3 is a view showing a main part of a conventional elevator door device.
4 is a plan view of the main part of FIG. 3;
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Door motor 2 Base 3 Frame 4 Car 10 1st pulley 11 2nd pulley 12 V belt 20,21 Hole 22 Roll pin 23 Binder

Claims (3)

A first winding body fixed to the drive shaft of the door motor, a second winding body pivotally attached to the car side, and a winding strip wound between the both winding bodies, In an elevator door device that opens and closes a door by transmitting the rotation of the door motor at a reduced speed,
Holes are provided on the door motor side and the car side, respectively, and a string-like body is passed through these holes, and the distance between the holes is reduced by the string-like body, An elevator door device comprising: a configuration for adjusting a distance from a second winding body; and a device for fixing the door motor side to the car side after the adjustment . A base attached to a frame fixed to an elevator car, a door motor attached to the base, a first pulley fixed to a drive shaft of the door motor, and a second pulley pivotally attached to the car side And an elevator door device that opens and closes the door by decelerating and transmitting the rotation of the door motor.
Holes are formed in the base and the frame, and the base is moved by reducing the distance between the holes by drawing the string through the holes and pulling the string, and the first pulley. An elevator door device comprising: a configuration for adjusting a distance between the first pulley and the second pulley; and a device for fixing the base to the frame after the adjustment .   The elevator door apparatus according to claim 2, wherein a plurality of pins are provided between the frame and the base to limit a moving direction of the base.

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