JP3726595B2 - Elevator drive support device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a support device for attaching and supporting an elevator drive device to a guide rail.
[0002]
[Prior art]
In home elevators and small elevators, installation space is often limited, and thus space saving of hoistways is desired. In particular, since home elevators are installed in ordinary houses, space saving is an important factor.
Therefore, in the traction type elevator, in order to install the drive device at the uppermost part of the hoistway, a method of attaching and supporting the drive device to the upper part of the guide rail for the passenger car and the counterweight is often used. .
In the case of a home elevator, since the minimum overhead dimension is as small as 2400 mm, one of the following two examples is often used as a method for installing a drive device.
[0003]
4 and 5 are views showing an example of a conventional method of installing a driving device, FIG. 4 is a schematic plan view of a hoistway, and FIG. 5 is a schematic cross-sectional view along AA in FIG.
In the figure, reference numeral 1 denotes a pair of guide rails installed in a hoistway 2, and a guide rail 1a for a car 3 and a guide rail 1b for a counterweight 4 are integrally formed. Reference numeral 5 denotes a drive device including a speed reducer 6 and a motor 7, and 8 denotes a traction sheave wound with a main rope (not shown) connecting the car 3 and the counterweight 4. These driving devices 5 and the like are installed between the pair of guide rails 1 by a mounting base 9. Reference numerals 10 a and 10 b denote roller guides of the car 3, and 12 denotes a ceiling of the hoistway 2.
[0004]
The feature of this conventional example is that the rotation surface of the traction sheave 8 is installed in the frontage direction. Therefore, the main rope can suspend almost the center of gravity of the counterweight 4, and the car 3 side can hang near the center of gravity in the depth direction, so that the riding comfort of the car 3 is relatively good.
[0005]
On the other hand, in the home elevator, since the speed reducer 6 normally uses a worm type, the drive device 5 is placed vertically and its height increases. Therefore, the position of the mounting base 9 must be lowered, and the position of the roller guide 10a must also be lowered to avoid interference with the mounting base 9.
As a result, the distance between the roller guides 10a and 10b is reduced, the offset load applied to the roller guides 10a and 10b is increased, the riding comfort of the car 3 is deteriorated, and the strength of the roller guides 10a and 10b needs to be increased. There is a problem.
[0006]
FIG. 6 shows another conventional example and corresponds to FIG. 4. The same reference numerals as those in FIG. 4 denote the same components.
The feature of this conventional example is that the rotation surface of the traction sheave 8 is installed in the depth direction. Therefore, the height of the drive device 5 can be reduced by placing it horizontally. As a result, the distance between the roller guides 10a and 10b can be increased, the riding comfort of the car 2 can be improved, and the strength of the roller guides 10a and 10b can be kept low.
[0007]
On the other hand, since the rotation surface of the traction sheave 8 is installed in the depth direction, the main rope cannot suspend both the center of gravity of the car 3 in the depth direction and the center of gravity of the counterweight 4. Therefore, the roller guide 10a of the passenger cage 3, the greater the 10b and the balancing Cal unbalanced load hanging on the guide shoe of the weight 4, there is a problem that ride comfort is deteriorated.
[0008]
[Problems to be solved by the invention]
As described above, the conventional ones have a problem that the roller guide and the guide shoe are subjected to an unbalanced load, leading to deterioration of the riding comfort of the car 3.
[0009]
[Means for Solving the Problems]
The present invention makes it possible to place the drive device vertically by lowering the position of the mounting portion to which the drive device is attached, and by raising the fixing position of the mounting portion to the guide rail, the upper and lower rollers of the car It is designed to increase the distance between guides.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
An embodiment of the present invention will be described with reference to FIGS. 1 is a plan view of the main part, FIG. 2 is a partial cross-sectional view taken along the line BB of FIG. 1, and FIG. 3 is a cross-sectional view taken along the line CC of FIG.
In the figure, reference numeral 20 denotes a mounting portion for mounting the driving device 5 and the like, and includes a machine beam 21 and a pair of machine beds 22 and 22, and the driving device 5 and the like are fixed to the machine beds 22 and 22. 23 and 23 are a pair of fixed portions, which are arranged at least a distance through which the roller guide 10a can pass between the guide rails 1a for the car, and lower portions thereof are respectively attached to both sides of the mounting portion 20, The upper part is fixed to the upper part of the guide rail 1. Reference numeral 24 denotes a bracket that holds the intermediate portion of the fixed portion 23 on the counterweight guide rail 1b, and is fixed to the guide rail 1b with a clip 24a. The same reference numerals as those in FIGS. 4 and 5 denote the same components.
[0011]
In this embodiment, since the attachment portion 20 is at a low position, the rotation surface of the traction sheave 8 can be installed in the frontage direction with the drive device 5 placed vertically. For this reason, the main rope can suspend the center of gravity of the counterweight 4 and the vicinity of the center of gravity of the car 3 in the depth direction, so that the riding comfort of the car 3 can be improved.
[0012]
Moreover, since the attaching part 20 can be fixed to the upper part of the guide rail 1 by the fixing | fixed part 23, the roller guide 10a of the cage | basket | car 3 can raise to the position of FIG. Therefore, as described with reference to FIG. 6, the distance between the roller guides 10a and 10b can be increased to improve the riding comfort of the car 3, and the strength of the roller guides 10a and 10b can be kept low.
[0013]
Further, the bracket 24 prevents the mounting portion 20 from swinging by holding the intermediate portion of the fixing portion 23 to the weight guide rail 1b. Note that the counterweight 4 is smaller than the car 3, so that the guide shoe does not interfere with the bracket 24 even when it reaches the highest position.
[0014]
In the above-described embodiment, the roller guide and the guide shoe are used as the guide for the car and the counterweight, but an appropriate guide may be used depending on the situation. Since the present invention secures a space for installing the driving device and the like without impairing the riding comfort of the car, the type of the driving device to be installed is not limited to the worm type, and It is not limited to home elevators.
[0015]
【The invention's effect】
As described above, according to the present invention, it is possible to install a driving device or the like without impairing the riding comfort of the car even if the elevator has a small overhead size.
[Brief description of the drawings]
FIG. 1 is a plan view of a main part showing an embodiment of the present invention.
FIG. 2 is a partial cross-sectional view taken along the line BB of FIG.
3 is a cross-sectional view taken along the line CC of FIG.
FIG. 4 is a schematic plan view of a hoistway showing an example of a conventional drive device installation method.
FIG. 5 is a schematic cross-sectional view taken along the line AA in FIG.
FIG. 6 is a diagram showing another conventional example.
[Explanation of symbols]
1 Guide rail 1a Guide rail 1b for car

Claims (2)

A pair of guide rails in which a carriage, a counterweight, a guide rail for a passenger car and a guide rail for a counterweight are integrated, and an elevator driving device supported by the guide rail are provided. In things,
The support device for supporting the drive device on the guide rail has an attachment portion for attaching the drive device, and a fixing portion for fixing the attachment portion to the guide rail, and a position where the fixing portion is fixed to the guide rail is the attachment portion. A support device for an elevator drive device, wherein the support device is configured to be higher than the section. In a support device for supporting an elevator drive device with a plurality of guide rails,
The support device has a mounting portion for mounting the driving device and a pair of fixing portions mounted so as to stand on both sides of the mounting portion, and an upper end portion of one fixing portion is fixed to one guide rail. And an upper end portion of the other fixing portion is fixed to the other guide rail, and the upper end portions of the two fixing portions are separated from each other and have a space between them . Support device.

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