EP3680207B1 - Adjusting device for adjusting a guide rail - Google Patents

Description

The invention relates to an adjustment device for adjusting a guide rail in an elevator system, comprising at least one elevator shaft, the adjustment device comprising at least one perpendicular, at least one frame, which frame comprises a first segment for laying on the guide rail and a second segment arranged perpendicularly to the first segment , a first measuring scale for detecting a position of the guide rail in relation to the at least one perpendicular in at least a first spatial direction, the first measuring scale being arranged on the second segment of the frame, and a second measuring scale for detecting a position of the guide rail in relation to the at least one perpendicular in at least one second spatial direction.

The invention also relates to a method for adjusting a guide rail in an elevator system.

As a rule, a guide rail is pre-assembled in an elevator shaft and then adjusted. A plumb line is usually used, which is stretched vertically in the elevator shaft and which serves as a reference for the adjustment of the guide rail.

In practice, a guide rail in an elevator shaft is usually adjusted by measuring the distance between the perpendicular and the guide rail in two spatial directions using a measuring device, comparing the measured distance with reference values and then, if the measured values deviate from the reference values, the position of the guide rail is corrected based on the measured values.

This measuring method is very error-prone, in particular because with this measuring method, when the measuring device is placed on the plumb bob, the plumb bob is easily deflected from its original position, which can result in falsified measured values being read.

the JP 2018280 A discloses an alternative adjustment method in which a frame is applied to the guide rail, the frame for determining the position of the guide rail with respect to the perpendicular in a first spatial direction having a first viewing window with a first measuring scale and in a second spatial direction a second viewing window with a second Measuring scale has, for a better reading of the measured value, the solder is illuminated.

Out of JP H04 64584 A an adjustment device for a guide rail of an elevator shaft is known, which can be attached to the guide rail and has two mutually spaced conductor plates in the vertical direction, which must be brought into contact with a solder in order to thereby close a circuit for a signal lamp.

The problem with the adjustment device known from the prior art is that the viewing windows each having a measuring scale are spaced apart from the plumb line. For this reason, this measurement method is very error-prone, since an accurate measurement can only be read if the measurement is read at a certain angle.

Against this background, it is an object of the present invention to improve an adjustment device mentioned at the outset and to provide an improved adjustment method. In particular, the adjustment device should have a cost-effective construction. In particular, the adjustment device should be easy to handle and in particular should be operable by just one person.

To solve this problem, an adjustment device and an adjustment method according to the independent claims are proposed. Further advantageous refinements of the invention are described in the dependent claims and the description and illustrated in the exemplary embodiments shown in the figures.

The proposed solution provides an adjustment device for adjusting a guide rail in an elevator installation, comprising at least one elevator shaft. The adjustment device comprises a perpendicular, at least one frame, a first measuring scale for detecting a position of the guide rail in relation to the at least one perpendicular in a first spatial direction and a second measuring scale for detecting a position of the guide rail in relation to the at least one perpendicular in a second spatial direction. In particular, the guide rail comprises a plurality of guide rail segments. In particular, the guide rail is arranged vertically in the elevator shaft. In particular, the guide rail is arranged horizontally in the elevator shaft; in particular, the plumb bob is stretched horizontally in the elevator shaft in this case. In particular, the adjustment device can also be used to adjust other elevator components that can be adjusted by means of a tensioned plumb line as a reference.

The frame of the adjustment device comprises a first segment for application to the guide rail and a second segment arranged perpendicular to the first segment which the first measuring scale is arranged. In particular, the first measurement scale is arranged in the direction of extension of the second segment.

The adjustment device also includes a stop bracket that can be displaced on the second segment, a power source and a signal transmitter. In particular, the signal generator is set up to emit an optical and/or acoustic signal when the angle bracket is in contact with the perpendicular.

The power source is in electrical communication with the transducer, the try square, and the solder to form an open circuit. In particular, the power source is integrated in the signal generator. The signal transmitter is connected to the solder with a first cable connection. The signal transmitter is connected to the stop bracket with a second cable connection. In particular, the circuit between the solder and the try square is broken.

The power source, the transducer, the square and the plumb are in electrical communication such that the circuit is closed when the square and the plumb are in contact. The circuit is closed when the try square is in direct physical contact with the plumb line.

The try square includes a first arm and a second arm. In one embodiment of the invention, the second measuring scale is arranged on the second arm of the stop bracket. In particular, the second measurement scale is arranged along the extension direction of the second arm of the angle bracket.

In a further embodiment of the invention, an insulating material is arranged on the first arm of the angle bracket. In particular, the insulating material prevents electrical contact between the try bracket and the second segment of the frame during the measuring process. In particular, the first arm of the stop bracket has a projection which enables the stop bracket to be applied precisely in order to measure the position of the guide rail with respect to the perpendicular. In particular, the projection arranged on the first arm of the try bracket has an insulating material in order to prevent electrical contact with the second segment of the frame during the measuring process.

In order to adjust a guide rail in an elevator shaft of an elevator system, the guide rail is first pre-assembled in the elevator shaft.

To adjust the guide rail pre-assembled in the elevator shaft using the adjusting device according to the invention, a plumb line is first tensioned in the elevator shaft in the immediate vicinity of the guide rail to be adjusted in the direction of extension of the guide rail to be adjusted.

In order to determine the position of the guide rail with respect to the perpendicular in a first spatial direction and in a second spatial direction, a signal generator is used, which emits an optical and/or acoustic signal. In this way, sources of error are to be reduced when recording the measured values for determining the position of the guide rail.

To determine the position of the guide rail with respect to the perpendicular, the frame of the adjustment device is placed flush against the guide rail with its first segment in the direction in which the guide rail extends. In particular, the frame is placed with its first segment against the guide rail in such a way that the second segment of the frame, which is arranged perpendicular to the first segment, points in the direction of the perpendicular. In particular, the frame is fastened to the guide rail to be adjusted with a fastening means. In particular, the first segment of the frame is attached to the guide rail to be adjusted. In particular, the fastening means is a clip and/or a screw clamp and/or a magnet. In particular, the fastening means is fixedly connected to the frame for easier handling.

So that the signal transmitter can emit an optical and/or acoustic signal, a power source is electrically connected to the signal transmitter. In particular, the power source is integrated in the signal generator.

In a further process step, the signal transmitter is electrically connected to the solder and the try square so that an open circuit is formed. In particular, the signal transmitter is electrically connected to the solder with a first cable connection. In particular, the signal transmitter is electrically connected to the stop bracket with a second cable connection.

In a further method step, a first arm of the try bracket is placed against the second segment of the frame. In particular, the first arm of the angle bracket has a projection which is arranged perpendicularly to the first arm and by means of which the angle bracket is placed flush against the second segment of the frame.

The try square is then moved along the second segment of the frame in the direction of the plumb line until the second arm of the try square, which is arranged perpendicularly to the first arm, comes into contact with the plumb line and the circuit is thus closed, so that the signal transmitter emits an optical and/or acoustic signal . In particular, the projection arranged on the first arm of the stop bracket remains in permanent contact with the second segment of the frame when the stop bracket is displaced along the second segment of the frame. In particular, the first arm of the try bracket has an insulating material. In particular, electrical contact between the angle bracket and the frame is prevented by means of the insulating material.

If the circuit is closed by contact between the second arm of the try square and the plumb bob, so that the signal transmitter emits an optical and/or acoustic signal, the position of the guide rail relative to the plumb bob in the first spatial direction is measured using the first measuring scale, which is on the second segment of the Frame is arranged, measured and measured in the second spatial direction by means of the second measuring scale, which is arranged on the second arm of the stop bracket.

In particular, the first measuring scale is arranged in the direction of extension of the second segment of the frame and the second measuring scale is arranged in the direction of extension of the second arm of the angle bracket. In particular, the point at which the perpendicular is in contact with the second arm of the angle bracket marks the measured value for the position of the guide rail in relation to the perpendicular in the second spatial direction on the second measuring scale. In particular, the second arm of the try square marks on the second segment of the frame the value to be read on the first measurement scale for the position of the guide rail with respect to the perpendicular in the first spatial direction.

The measured values for the position of the guide rail relative to the perpendicular in the first spatial direction measured using the first measuring scale and the position of the guide rail relative to the perpendicular in the second spatial direction measured using the second measuring scale are compared with reference values.

If the value measured using the first measuring scale and/or second measuring scale deviates from the corresponding reference value, the position of the guide rail in the first spatial direction and/or in the second spatial direction is corrected based on the value measured using the first measuring scale and/or second measuring scale.

These method steps are carried out in the order described above until the position of the guide rail measured using the first measuring scale and the second measuring scale in the first spatial direction and the second spatial direction matches the reference values.

Using the adjustment device according to the invention and the adjustment method according to the invention, it is possible to detect the position of the guide rail with respect to the perpendicular in the first spatial direction and the second spatial direction with millimeter precision.

The adjustment device according to the invention and the adjustment method according to the invention advantageously have the advantage over the known prior art that the position of the guide rail with respect to the perpendicular can be read off very precisely using the first measuring scale and the second measuring scale. It is not necessary to determine the measured value by reading the measuring scale from a specific angle.

Furthermore, the emission of the optical and/or acoustic signal by the signal transmitter when the angle bracket touches the plumb bob prevents the position of the plumb bob being changed with the measuring device. In this way, the measurement accuracy is greatly improved.

Fig. 1

in einer vereinfachten schematischen Darstellung ein Ausführungsbeispiel für die erfindungsgemäße Justagevorrichtung in einer Draufsicht;

Fig. 2

in einer vereinfachten schematischen Darstellung die in Fig. 1 dargestellte Justagevorrichtung in einer perspektivischen Seitenansicht aus zwei Richtungen;

Fig. 3

in einer vereinfachten schematischen Darstellung die in Fig. 1 und Fig. 2 dargestellte Justagevorrichtung in einer Frontansicht.

Further advantageous details, features and design details of the invention are explained in more detail in connection with the exemplary embodiments illustrated in the figures. It shows:

1

in a simplified schematic representation of an embodiment of the adjustment device according to the invention in a plan view;

2

in a simplified schematic representation the in 1 shown adjustment device in a perspective side view from two directions;

3

in a simplified schematic representation the in 1 and 2 adjustment device shown in a front view.

1 shows an embodiment of the adjustment device 10 for adjusting a guide rail 20 in a plan view. In the immediate vicinity of the guide rail 20, a plumb line 11 is clamped as a reference for the adjustment of the guide rail 20.

The adjustment device 10 includes a frame 12 which includes a first segment 121 and a second segment 122 arranged perpendicularly to the first segment 121 . The first segment 121 of the frame 12 is placed flush against the guide rail 20 .

The frame is attached to the guide rail 20 by means of an attachment means 13 . In the example shown, the fastening means 13 is designed as a clamp, by means of which the first segment 121 of the frame 12 is clamped to the guide rail 20 .

A first measurement scale, which is not shown for reasons of clarity, is arranged on the second segment 122 of the frame 12 along the direction in which the second segment 122 extends. In particular, the first measuring scale is arranged on the upward-facing side edge of the second segment 122 .

The adjustment device 10 further includes a stop bracket 14 which has a first arm 141 and a second arm 142 . A projection 15 is arranged on the first arm 141 of the stop bracket. in 1 In the example shown, the projection 15 is formed as a double-sided projecting edge which extends along the entire length of the first arm 141 on the outside thereof.

By means of the projection 15 it is possible that for determining the position of the guide rail with respect to the plumb, the stop bracket 14 can be applied consistently in the same way to the second segment 122 of the frame 12 with its first arm 141, thereby reducing reading errors.

The solder 11 is connected to a signal generator 17 and a power source 16 by means of a first cable connection 161 . The power source 16 is connected to the angle bracket 14 by means of a second cable connection 162 . In particular, the current source 16 is integrated in the signal generator 17 .

The power source 16, the signal generator 17, the stop bracket 14 and the solder 11, which are electrically connected via the first cable connection 161 and the second cable connection 162, form an open circuit.

The stop bracket 14 has an insulating material on the surface of the first arm 141 and on the surface of the projection 15 arranged on the first arm 141 .

To determine the position of the guide rail 20 with respect to the plumb 11, the first arm 141 of the try square 14, which is connected to the power source 16, the signal generator 17 and the plumb 11 in an open circuit, is applied to the second segment 122 of the frame 12 . The insulating material arranged on the surface of the first arm 141 and the projection 15 of the stop bracket 14 prevents electrical contact between the stop bracket 14 and the frame 12.

The stop bracket 14 is displaced with its first arm 141 along the second segment 122 of the frame 12 towards the perpendicular 11 , the projection 15 being in permanent contact with the second segment 122 of the frame 12 .

If the second arm 142 of the angle bracket 14 comes into physical contact with the solder 11, the circuit is closed and the signal transmitter 17 emits an optical and/or acoustic signal.

In order to determine the position of the guide rail 20 with respect to the plumb 11 , the angle bracket 14 is held at the position where the second arm 142 of the angle bracket 14 and the plumb line 11 come into touching contact.

In the direction in which it extends, the second arm 142 of the stop bracket 14 has a second measuring scale, which is not shown for reasons of clarity. In particular, the second measuring scale is arranged on the upward-facing surface of the second arm 142 .

The measured value for the guide rail position with respect to the perpendicular 11 in the second spatial direction corresponds to the measured value on the second measuring scale, which marks the point at which the second arm 142 of the stop bracket 14 and the perpendicular 11 touch.

The edge of the second arm 142 of the stop bracket 14, which is in contact with the plumb 11, marks on the first measuring scale on the second segment 122 of the frame 12 the measured value for the guide rail position with respect to the plumb 11 in the first spatial direction.

The measured values for the guide rail position with respect to the perpendicular 11 determined by means of the first and the second measuring scale are compared with reference values.

If the measured value determined by means of the first measuring scale and/or by means of the second measuring scale for the guide rail position with respect to perpendicular 11 in the first spatial direction and/or in the second spatial direction deviates from the reference values, the position of the guide rail 20 is corrected based on the measured values . The measurement procedure is then repeated.

This process is repeated until the measured values determined by means of the first measuring scale and the second measuring scale for the guide rail position with respect to the perpendicular 11 in the first spatial direction and the second spatial direction match the reference values.

This adjustment method is carried out for a large number of measurement positions along the guide rail 20 until the guide rail 20 is completely adjusted.

2 shows the adjustment device 10 from 1 from two perspective side views for a more detailed representation of the structure of the adjustment device 10. The power source, the signal generator, and the first cable connection and second cable connection were not shown for reasons of clarity.

2 illustrates how the stop bracket 14 is applied to the second segment 122 of the frame 12. It is also shown to what extent the projection 15 arranged on the first arm 141 of the stop bracket 14 serves as an aid in order to place the stop bracket 14 on the second segment 122 of the frame 12 in the same way during each measuring process in order to reduce measuring errors.

Further points, as in the in 3 Illustrated front view better seen, the first segment 121 of the frame 12 also projections 15 on. Those on the first segment 121 arranged projections 15 facilitate precise positioning of the frame 12 on the guide rail 20.

For reasons of clarity, in 3 the power source, the signal transmitter, the first cable connection and the second cable connection are not shown.

Reference List

10

adjustment device

11

Lot

12

frame

121

first segment

122

second segment

13

fasteners

14

stop bracket

141

first arm of the stop angle

142

second arm of the stop bracket

15

head Start

16

power source

161

first cable connection

162

second cable connection

17

signaller

20

guide rail

Claims (9)

1. Adjustment device (10) for adjusting a guide rail (20) in an elevator system, comprising at least one elevator shaft,

   wherein the adjustment device (10) comprises:

   - at least one perpendicular (11);

   - at least one frame (12) comprising a first segment (121) for abutment against the guide rail (20) and a second segment (122) arranged perpendicular to the first segment (121);

   - a first measuring scale for detecting a position of the guide rail (20) with respect to the at least one perpendicular (11) in a first spatial direction, wherein the first measuring scale is arranged at the second segment (122) of the frame (12);

   - a second measuring scale for detecting a position of the guide rail (20) with respect to the at least one perpendicular (11) in a second spatial direction,

   characterized in that

   the adjustment device (10) further comprises

   - a try square (14) displaceable at the second segment (122);

   - a power source (16); and

   - a signal transmitter (17), wherein

   the signal transmitter (17) is arranged to emit a visual and/or acoustic signal when the try square (14) is in contact with the perpendicular (11),

   wherein the signal transmitter (17) is connected to the perpendicular (11) via a first cable connection (161) and is connected to the try square (14) via a second cable connection (162),

   wherein the power source (16), the signal transmitter (17), the try square (14) and the perpendicular (11) are electrically connected in such a way that they form an open circuit and that the circuit is closed when the try square (14) and the perpendicular (11) are in contact.
2. Adjustment device (10) according to claim 1, characterized in that the power source (16) is integrated in the signal transmitter (17).
3. Adjustment device (10) according to claim 1 or 2, characterized in that the try square (14) comprises a first arm (141) and a second arm (142).
4. Adjustment device (10) according to claim 3, characterized in that the second measuring scale is arranged along the direction of extension of the second arm (142) of the try square (14).
5. Adjustment device (10) according to claim 3 or 4, characterized in that the first arm (141) of the try square (14) comprises an insulating material.
6. Adjustment device (10) according to any one of claims 3 to 5, characterized in that the first arm (141) of the try square (14) comprises a protrusion (15) for precisely abutting the try square (14) at the second segment (122) of the frame (12) for measuring the guide rail position with respect to the perpendicular (11).
7. Adjustment device (10) according to any one of claims 1 to 6, characterized in that the first measuring scale is arranged along the direction of extension of the second segment (122) of the frame (12).
8. Method for adjusting a guide rail (20) in an elevator system by use of an adjustment device (10) according to any one of claims 1 to 7, wherein

   - a frame (12) comprising a first segment (121) of the frame (12) is abutted in the direction of extension of the guide rail (20);

   - by means of a first measuring scale arranged at a second segment (122) of the frame (12) extending perpendicular to the first segment (121), the position of the guide rail (20) with respect to a perpendicular (11) is measured in a first spatial direction;

   - by means of a second measuring scale, the position of the guide rail (20) with respect to the perpendicular (11) is measured in a second spatial direction; and

   - the position of the guide rail (20) measured by means of the first/second measuring scale (20) is compared with reference values,

   characterized in that
   for determining the position of the guide rail (20) with respect to the perpendicular (11) in the first spatial direction and in a second spatial direction, a signal transmitter (17) is used which outputs an optical and/or acoustic signal.
9. Method according to claim 8, characterized in that the adjustment of the guide rail (20) is an iterative method comprising the following method steps:

   - placing the frame (12) with the first segment (121) of the frame (12) in the direction of extension of the guide rail (20) so that the second segment (122) of the frame (12) faces in the direction of the perpendicular (11), in particular attaching the frame (12) to the guide rail (20);

   - electrically connecting the signal transmitter (17), which is connected to a power source (16), with the perpendicular (11) and with a try square (14), so that an open circuit is formed;

   - abutting a first arm (141) of the try square (14) at the second segment (122) of the frame (12), wherein an electrical contact between the try square (14) and the frame (12) is prevented by an insulating material disposed at the first arm (141) of the try square (14);

   - displacing the try square (14) along the second segment (122) of the frame (12) in the direction of the perpendicular (11) and bringing a second arm (142) of the try square (14), which is arranged perpendicularly to the first arm (141), into contact with the perpendicular (11), thereby closing the circuit so that the signal transmitter (17) emits an optical and/or acoustic signal;

   - measuring the position of the guide rail (20) with respect to the perpendicular (11) in the second spatial direction by means of the second measuring scale, which is arranged in the direction of extension of the second arm (142) of the try square (14); and

   - measuring the position of the guide rail (20) with respect to the perpendicular (11) in the first spatial direction by means of the first measuring scale arranged at the second segment (122) of the frame (12), wherein in particular the second arm (142) of the try square (14) marks the value to be read on the first measuring scale;

   - comparing the value for the position of the guide rail (20) measured by the first/second measuring scale with respect to the perpendicular (11) in the first/second direction with reference values;

   - if the value measured by means of the first/second measuring scale deviates from the corresponding reference value, correcting the position of the guide rail (20) in the first/second spatial direction based on the value measured by means of the first/second measuring scale,

   wherein the method steps are carried out in this sequence until the position of the guide rail (20) measured by means of the first measuring scale and the second measuring scale coincides with the reference values.

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