JPH0114626Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an improvement in the mounting structure of an elevator door.

First, a conventional door device on the landing side of an elevator will be explained with reference to FIG. In the figure, 1 is the landing door, and the door hanger 2 connects the header 3.
It is suspended from a door rail 4 fixed to. The header 3 is fixed to the hoistway wall (not shown), and the header 5 is installed at the upper frame of the entrance/exit (for example, a curtain board) at the top of the landing entrance so that the front surface of each is flush with the landing door 1. ing.

However, in the above conventional device, the landing door 1
The thickness x1 is the thickness x2 of a normal door where the entrance/exit upper frame 5 and the landing door 1 are not flush with each other, as shown by the dashed line.
Since the size is larger and the dimensions differ for each site, there is a drawback that the production cost and production time increase.

Furthermore, if the thickness x1 of the door is large, the hanging center of the door hanger 2 and the center of gravity of the landing door 1 do not match, so the opening and closing operation of the landing door 1 is not performed smoothly, and the door hanger 2 falls off from the door rail 4. There was a fear that this would happen. Furthermore, the thickness x1 of the door may not be constant due to manufacturing errors in the landing door 1, and in this case, when installing the landing door 1 on site, it is necessary to make the upper frame 5 of the entrance and exit door 1 flush with the landing door 1. It took a lot of adjustment time. Further, the car side door device also had the same drawbacks as above.

The present invention was made in view of the above points, and the thickness of the door 1 is made almost the same as that of a normal door, and the structure is such that it can move forward and backward in the direction of the thickness of the door, and a balance weight is attached to the back side of the door. It is an object of the present invention to provide a door device which is inexpensive and can perform smooth opening/closing operations by attaching the door device.

An embodiment of the present invention will be described with reference to FIG. 2 for a door on the landing side.

Reference numeral 6 denotes a landing door according to the present invention, and 7 is fixed to the landing door 6 with an L-shaped mounting bracket, and an elongated hole 7a is provided in the thickness direction of the door. 8 is a spacer inserted between the door hanger 2 and the mounting bracket 7. Also, when one or more balance weights 9 are eccentric, the mounting bolts 10 and nuts 1 may be
1 is integrally attached to the door hanger 2 with a spacer 8 and a mounting bracket 7, so that the center of gravity of the door device consisting of the landing door 6, balance weight 9, etc. coincides with the center of suspension of the door hanger 2.

Note that the same reference numerals as in FIG. 1 indicate the same parts.

Since the present embodiment has the above-described configuration, the thickness of the landing door 6 is the same as the thickness x2 of a normal door, and the entrance/exit upper frame 5 and the landing door 6 can be configured to be flush with each other. This makes it easy to adjust the position of the landing door 6 in the thickness direction at the installation site, and by increasing or decreasing the balance weight 9, the hanging center of the door hanger 2 and the center of gravity of the door device including the landing door 6 etc. can be made to coincide. As a result, smooth door opening/closing operations can be easily achieved, and the drawbacks of the prior art can be overcome. Further, the same method as described above can be applied to the door on the car side.

[Brief explanation of the drawing]

FIG. 1 is a vertical cross-sectional view showing a conventional door device on the landing side of an elevator, and FIG. 2 is a vertical cross-sectional view showing a door device on the landing side of an elevator according to the present invention. 1, 6... Landing door, 2... Door hanger, 5
... Entrance/exit upper frame, 7... Mounting bracket, 9... Balance weight.

Claims (1)

[Scope of Claim for Utility Model Registration] The upper frame of the entrance/exit of a landing or car is constructed so that the front surface of each door suspended from the door rail by a door hanger is flush with the upper frame of the entrance/exit of a car. In an elevator door device, a door, a door hanger, a mounting bracket provided on the back side of the door, a device for connecting the mounting bracket and the door hanger so as to be adjustable in the thickness direction of the door, and the above-mentioned An elevator door device comprising: a bolt hanging down from the rear side of the door; and a balance weight attached to the bolt eccentrically in a direction opposite to the surface of the door.