JP4298053B2 - Elevator equipment - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an elevator apparatus having a governor, and more particularly, to an elevator apparatus capable of installing a governor without depending on the structure or state of a building.
[0002]
[Prior art]
FIG. 3 shows an example of a conventional elevator apparatus having a governor. FIG. 3 (a) is a front view thereof, and FIG. 3 (b) is a side view thereof. As shown in FIGS. 3 (a) and 3 (b), the elevator governor 31 body is installed on the pit surface due to the relationship between the structure of the building and the elevator layout, etc., and the turning sheave 32 is moved up and down the car. May be installed on the road. In such a case, the governor 31 main body under the pit is fixed to the hoistway wall 34 via the attachment base 33 with anchor bolts or the like.
[0003]
[Problems to be solved by the invention]
However, the bottom surface and side surface of the pit are usually waterproofed to prevent water leakage at the pit. Therefore, it is preferable to avoid using anchor bolts (driving) in the pits to fix the governor 31 because it may cause water leakage. As a result, the position where the anchor bolt is driven (fixed position) is in the vicinity of the floor surface of the lowest floor, and a large fixed base is required to install the governor 31 at the lower part of the hoistway.
[0004]
In addition, when the car reaches the lowest floor, if the speed governor 31 is higher than the lower beam of the car, there is a problem such as interference unless the safety link is arranged on the upper beam. The degree of design freedom is low.
[0005]
The present invention has been made in consideration of such points, and an object thereof is to provide an elevator apparatus capable of fixing a speed governor at a desired position in a pit without depending on the structure or situation of a building. And
[0006]
Moreover, an object of this invention is to provide the elevator apparatus which can fix a sheave in the desired position above a hoistway, without depending on the structure and the condition of a building.
[0007]
[Means for Solving the Problems]
The present invention includes a cage or the counterweight up and down, a guide rail for guiding the vertical movement of the cage or counterweight, Oite above the guide rail, in the vertical direction is fixed at a plurality of points, cantilever-like An elevator apparatus comprising: a supported sheave support arm; and a sheave supported by the sheave support arm on an upper part of a hoistway of the car or the counterweight .
[0010]
According to the present invention, the sheave can be fixed at a desired position because the sheave is supported by the guide rail via the sheave support arm that is supported in a single beam shape .
[0011]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the drawings.
[0012]
FIG. 1 is a schematic configuration diagram illustrating an elevator apparatus according to a first embodiment of the present invention. As shown in FIG. 1, the elevator apparatus 10 according to the first embodiment of the present invention includes a car (not shown) that moves up and down and a guide rail 13 that guides the raising and lowering of the car.
[0013]
Below the guide rail 13, three supporting arms 17a extending in the horizontal direction are fixed. The support arm 17 supports the speed governor 16 in the pit.
[0014]
A second support arm 17b extending in an oblique direction is also fixed below the guide rail 13, and the speed governor 16 is also supported by the second support arm 17b.
[0015]
Further, a base 12 (sheave support arm) extending in a substantially horizontal direction is fixed above the guide rail 13 via clips 14 and bolts 15 at a plurality of locations in the vertical direction. The base 12 supports the turning sheave 11 on the upper part of the hoistway of the car.
[0016]
A speed control rope 18 is movably hung on the turning sheave 11 and the speed governor 16.
[0017]
Next, the operation of the present embodiment having such a configuration will be described.
[0018]
When the car (not shown) falls at a speed exceeding a predetermined speed, the governor 16 tries to stop the rotation of the governor rope 18 by biting the governor rope 18 by a not-shown biting mechanism. At this time, due to the reaction, a downward force acts on the turning sheave 11 and an upward force acts on the governor 16.
[0019]
In the upper part of the hoistway, a downward moment acts on the turning sheave 11 to generate a bending moment in the base 12. This bending moment is absorbed by the base 12 and the guide rail 13 fixed over a plurality of stages by the clip 14 and the bolt 15.
[0020]
Under the pit, an upward force is applied to the governor 16, whereby a bending moment is generated in the support arm 17a and a compressive force is generated in the second support arm 17b. This bending moment and compressive force are absorbed by the support arm 17 a and the second support arm 17 b and the guide rail 13.
[0021]
According to the present embodiment, since the speed governor 16 and the turning sheave 11 are fixed to the guide rail 13, they are not affected by the structure and situation of the building, and their mounting and installation are highly flexible. Can be done.
[0022]
Moreover, according to this Embodiment, since the support arm 17a is extended in the horizontal direction, attachment of the support arm 17a is easy. Further, the speed governor 16 according to the present embodiment is also supported by the second support arm 17b extending in the oblique direction, and the bending moment is effectively absorbed as compared with the case where it is supported only by the horizontal support arm 17a. Therefore, the cross-sectional area of the material constituting the support arm 17a can be kept small.
[0023]
Further, since the base 12 is fixed to the guide rail 13 at a plurality of locations in the vertical direction, the possibility of dropping off is extremely small.
[0024]
The guide rail 13 of the present embodiment guides the raising and lowering of the car, but the same configuration can be realized even with a guide rail that guides the raising and lowering of a counterweight (not shown). it can.
[0025]
Next, the elevator apparatus of the 2nd Embodiment of this invention is demonstrated using FIG. FIG. 2 is a schematic configuration diagram of the elevator apparatus 10 according to the second embodiment of the present invention.
[0026]
As shown in FIG. 2, in the elevator apparatus according to the present embodiment, the second support arm that supports the governor 16 is not provided, and the truss arm passed in an oblique direction between the adjacent support arms 17a. The configuration is the same as that of the first embodiment shown in FIG. In the second embodiment, the same parts as those in the first embodiment shown in FIG.
[0027]
In the present embodiment, since the support arm 17a and the truss arm 27 constitute a truss structure, it is more robust to the upward force acting on the governor 16.
[0028]
【The invention's effect】
As described above, according to the present invention, since the sheave is supported by the guide rail via the sheave support arm that is supported in the shape of a single beam, the sheave can be fixed at a desired position.
[Brief description of the drawings]
FIG. 1 is a schematic configuration diagram showing a first embodiment of an elevator apparatus having a governor according to the present invention.
FIG. 2 is a schematic configuration diagram showing a second embodiment of an elevator apparatus having a governor according to the present invention.
FIG. 3 is a schematic configuration diagram showing an elevator apparatus having a conventional speed governor.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 Elevator apparatus 11 Turning sheave 12 Base 13 Guide rail 14 Clip 15 Bolt 16 Speed governor 17a Support arm 17b Second support arm 18 Speed governor rope 27 Truss arm

Claims (2)

With an up and down basket or counterweight,
A guide rail for guiding the raising or lowering of the cage or the counterweight;
Oite above the guide rails, are fixed at a plurality of points in the vertical direction, the sheave support arm which is supported on the cantilever beam shape,
A sheave supported on the upper part of the hoistway of the cage or counterweight by the sheave support arm;
An elevator apparatus comprising: The elevator apparatus according to claim 1, wherein the sheave support arm extends in a horizontal direction.

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