JPS6031490A - Detector for derailment of elevator - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention relates to a derailing detection device for an elevator, and particularly relates to an improvement in a derailing detecting device for a lifting object such as an elevator car or a counterweight.

[Background of the invention]

As a conventional rail derailment detection device of this type,
Japanese Patent No. 2359 provides a detailed explanation using a counterweight as an example. Therefore, here, the first
This will be briefly explained with reference to the drawings and FIG.

In FIGS. 1 and 2, the conventional rail derailment detection device has brackets 4 mounted on a wall 2, which are erected facing each other in a hoistway 1.
An elevating body 5 such as a counterbalance weight is provided on both sides of the guide rail 3 which is fixed to the guide rail 3 through guide shoes 6 and is guided up and down in the hoistway l, and one end is fixed to the elevating body 5. A U-shaped guide body 12 is provided on the other end of the support body 7, which is arranged as a movable support structure, and a detection body 9 is provided.
Further, an electric conductor 10 arranged at a predetermined interval with respect to the guide body 12 of the detection body 9 is stretched vertically over almost the entire length of the hoistway 1 with a weight 11, and one end is fixed to the electric conductor 10 and the other end is fixed. This structure includes a fixed body 13 which is fixed to the wall 2. Note that the reference numeral 8 in the figure is a car compartment.

According to the rail derailment detection device configured as described above, when an earthquake occurs, the counterweight (elevating body) 5 is vibrated and shakes laterally, and the guide shoe 6 and the guide rail 3 are disengaged. In other words, if derailment occurs, U
Since the letter-shaped guide body 12 also moves in the same direction as the counterweight 5, the guide body 12 comes into contact with the electrical conductor mlO, which activates a detection relay (not shown) to issue an alarm or to activate the elevator. This is to stop the vehicle from moving.

In this conventional rail derailment detection device, as a means for fixing the electric wire lo to one end of the fixed body 13 fixed to the wall 2, a through hole through which the electric conductor 10 can be inserted is provided at one end of the fixed body 13. This is achieved by inserting the electrical conductor 10 through the hole.

This is because all the tension applied to the electric conductor 10 can be effectively applied. Therefore 1. The gap between the fixed body 13 portion and the guide body 12 is narrower than the gap between the electric conductor 100 portion and the guide body 12, which may cause a possibility of false detection. Electrical conductor 10
Since the fixing member 13 is inserted through a hole in the fixing body 13, there is a problem in that workability is significantly deteriorated.

In addition, since the detecting body 9 has a movable support structure, the supporting body 7 of the detecting body 9 resonates and the detecting body 9 is connected to the electric conductor 10 and the fixed body 1.
I came into contact with 3. This may cause the detection. Furthermore, when the detection body 9 comes into contact with the fixed body 13 or the like, there is a problem that the detection body 9 is bent and cannot be reused unless it is repaired.

[Purpose of the invention]

The present invention has been made in view of the above points, and its purpose is to provide an elevator derailment detection device that improves detection accuracy, facilitates installation work, and facilitates maintenance. It is about providing.

[Summary of the invention]

In order to achieve the above object, the present invention has a fixed body provided with a winding member at one end, the other end of which is fixed to a construction material such as a wall, an electric conductor is wound around the winding member of the fixed body, and One end of the detecting body is fixed to the elevating body, and the other end of the detecting body is flattened on the side that contacts the electric conductor.

[Embodiments of the invention]

Hereinafter, preferred embodiments of the present invention will be described based on the drawings.

3 and 4 are diagrams showing a first embodiment of the elevator derailment detection device according to the present invention, FIG. 3 is a cross-sectional plan view of the main part, and FIG. It is a sectional view along a line. In the first embodiment, the same members as in the conventional example will be described with the same reference numerals, and the second embodiment and subsequent embodiments will be treated in the same manner.

In Figures 3 and 4, the guide rail 3 is the hoistway 1.
They are supported by brackets 4 fixed to the wall 2 at appropriate intervals in the vertical direction, and are erected facing each other in the hoistway 1. Guide shoes 6 arranged opposite to the guide rail 3 are provided at the four corners of a counterweight 5 as an elevating body.
is engaged with. The counterweight 5 is guided by the guide rail 3 and moves up and down within the hoistway 7.

A detecting body 14 made of a conductive material and having one end fixed to the upper part of the counterweight 5 is provided between the counterweight 5 and the heel 8. The other end of the detecting body 14 is shown in FIG. It is constructed by bending a conductive material into an L-shape. At the other end of this detection body 14, an electric conductor 10 is connected to the guide rail 3 and the guide shoe 6, respectively.
They are arranged at intervals equal to or less than the engagement dimension of. The electric conductor 10 is wound around winding members 16 of several fixed bodies 15 provided at appropriate intervals in the vertical direction within the hoistway 1. This fixed body 15 is composed of a wound member 16 made of an insulating material and a support 17 to which this member 16 is fixed. The fixed body 15 has a support body 17, which prevents the electrical conductor 10 from rolling.

In this embodiment, since the winding fixation is as described above, the drowsiness conductor 10 can contact the detection body 14 without being obstructed by the fixing body even in the part where the electric conductor 10 is fixed so as not to sway horizontally. By attaching the fixed body 15, not only no non-detection part is generated, but also the installation work is easy because it only needs to be wound around the winding member 16.

Further, according to the present embodiment, the electric conductor lO is connected to the hoistway 7
It is possible to obtain an elevator derailment detection device that does not cause sideways movement even when affected by fluctuations in air pressure inside the elevator and does not malfunction.

In addition, this embodiment has the advantage of saving space.

FIG. 5 is a cross-sectional view of a main part showing a second embodiment of the present invention.

In FIG. 5, the fixed body 15 is composed of a pulley 17 made of an insulating material as a wound member, and a support 16 on which the pulley 17 is pivoted.

This pulley 15 preferably has a groove width approximately twice that of the electric conductor 10 and a groove depth approximately half that of the electric conductor 10 . If the pulley 15 is used as a winding member of the fixed body 15 and the electric conductor 10 is wound and fixed around the pulley 15, when the detection body 14 comes into contact with the electric conductor 10, the electric wire 10 When a load (more than the tension of
moves in accordance with the movement of the detecting body 14, so that the electric conductor 10 will not be damaged or disconnected by the impact force upon contact. Furthermore, since the tension applied by the weights 11 can be made uniform at any position in the vertical direction of the electric conductor 10, even in a high-lift elevator, the tension above the electric conductor 10 can be reduced by the fixed body 15. It never weakens.

In the second embodiment described above, the fixed body 15 and the pulley 17 are fixed to the wall 12 of the hoistway by the support body 16, but this is because the guide rail 3 or bracket 4 or the like. Furthermore,
If the distance between the car 8 and the counterweight 5 is narrow, the detection body 14 and the electric conductor 10 may be installed between the wall 2 and the counterweight 5, etc.

FIG. 8 is a cross-sectional view of main parts showing a third embodiment of the present invention. This embodiment differs from the first embodiment in that the fixed body 1
5 is constructed by providing two winding members 16 on one support 17, and two electrical conductors 10 and 110 are wound around these winding members 16 as shown by 1Δ, and these electrical conductors 10° Detection object 1 with a predetermined interval between 10
4, and there are no changes to the other components.

Even in this case, the same functions and effects as in the embodiment described above can be obtained, and only one detection body 14 is required, which has the advantage of saving space.

FIG. 9 is an explanatory diagram showing an example of applying tension to an electric conductor using a counterweight. In the figure, a pulley 19 is provided in an elevator machine room or the like.

The electrical conductor 10 has one end fixed to the floor surface, is wound around pulleys 18 and 18, and passes through the pulley 19 to the pulley IB,
is wound, and a weight 11 is provided at the other end.

This arrangement has the advantage that the same tension acts on the electrical conductors 10.

FIG. 10 is an explanatory diagram showing an example of means for applying tension to the electric conductor. What is this example? [The air conducting wire 10 is divided into upper and lower parts, and the upper electrical conducting wire 10U is equipped with a spring 20 as shown in the figure.
Tension is applied to the lower electric conductor 10D using a weight 11 as shown in the figure.

This configuration is suitable for application to high-lift elevators.

Embodiments of the present invention are constructed as described above.

By the way, as the means for fixing the counterweight 5 and the detection body 14, for example, a mounting bolt between the guide shoe 6 and the counterweight 5 may be used (not shown).

Further, as for the method of applying tension to the electric conductor 10, in addition to the above-described method using the weight 11, a structure using a spring or the like may be considered, but in any case, the electric conductor 10 according to the present invention
It is clear that the fixing method described above is extremely effective in the Elepeku rail derailment detection device.

〔Effect of the invention〕

As described above, according to the present invention, since the electric conductor is fixed to the fixed body in a winding manner, the accuracy of detecting the rail coming off is improved and the installation work and maintenance work are facilitated.

[Brief explanation of drawings]

Figure 1 is a cross-sectional plan view of the main parts of a conventional elevator counterweight derailment detection device, and Figure 2 is a cross-sectional view of a conventional elevator counterweight derailment detection device.
A 1-line sectional view, and FIG. 3 and subsequent figures show an embodiment of the rail derailment detection device according to the present invention. FIG. 3 is a cross-sectional plan view of the main part of the hoistway corresponding to FIG. 1, and FIG. ■-■ line cross-sectional view of
5, 6, and 7 are cross-sectional views of main parts showing other embodiments, FIG. 8 is a cross-sectional view of main parts showing still other embodiments of the present invention, and FIG. 9 and FIG. FIG. 10 is an explanatory diagram showing an example of applying tension to an electric conductor. 1... Hoistway, 2... Wall, 3... Guide rail,
4... Bracket, 5... Counterweight, 6...
・Guide shoe 11...Weight, 14...Detection object, 1
5... Fixed body, 16... Winding member, 17... Support body, 18... Pulley. Agent Patent Attorney Tatsuyuki Unuma Figure 1 No. 30 Figure V, Figure 8, Figure 9 No. 1 O Kiri

Claims (1)

[Scope of Claims] 1. An elevating body that ascends and descends within the hoistway is provided with both sides of the elevating body being guided by guide rails set up opposite each other in the hoistway, and one end of the detection object is attached to the elevating body. An elevator in which a plurality of fixing bodies are provided to fix the electric conductor, and an electric conductor arranged at a distance 6 from the other end of the detection body is stretched vertically over almost the entire length of the hoistway. −
In the rail derailment detection device, the fixed body has one end fixed to a construction material and a winding member provided at the other end of the support, and the electric conductor is wound around the winding member of the fixed body. An elevator derailment detection device characterized by: 2. The elevator off-rail detection device according to claim 1, wherein the winding member of the fixed body is a pulley.