DE102022116931A1 - Method for aligning and stabilizing a floor unit of a car in a catch frame of an elevator system and assembly kit therefor - Google Patents

Abstract

The present invention relates to a method for aligning and stabilizing the floor unit of a car in a catch frame of an elevator system, in particular before or in connection with the assembly or commissioning of the elevator system, wherein the floor unit is aligned downwards by means of traction means to a section of the catch frame arranged below the floor unit and is stabilized by adjusting a tensile force between respective attachment points provided for this purpose. Furthermore, the present invention relates to an assembly kit for aligning and stabilizing the floor unit of a lift car in a catch frame of an elevator system, in particular before or in connection with the assembly or commissioning of the elevator system, as well as corresponding uses.

Description

Technical area

The present invention relates to a method for aligning and stabilizing a floor unit of a car in a catch frame of an elevator system, in particular before or in connection with the assembly or commissioning of the elevator system, wherein the floor unit is aligned and stabilized relative to the catch frame. The present invention further relates to a mounting kit for such an alignment and stabilization of the floor unit of a car in a catch frame of an elevator system and corresponding uses.

Background of the invention

In many elevator systems, the elevator car (FK) must be installed in a catch frame (FR) before commissioning. It is crucial that the FK is installed vertically and without tension in the FR. In so-called “Low & Midrise” systems, the shaft pits are not so deep that the FK can be installed without a scaffolding level. In so-called “high rise” systems, the shaft pit is usually several meters deep; The FK can optionally be mounted in/on one of the upper floors, but several scaffolding levels must be provided. In addition, aligning and stabilizing the floor of the FK is very difficult, especially if the floor of the FK cannot be supported on the scaffolding for safety reasons, or if the use of support beams through an open group shaft is not possible.

These challenging assembly conditions have often led to the FK being installed in the FR inadvertently crooked (not exactly vertical), although in many situations this can only be noticed after completion, with an attempt then being made if necessary to force the FK into the correct position position in the FR, which, however, can in no way be viewed as a desirable solution, especially since the FK is usually designed as a static box and therefore, with such measures, it is not the FK but rather the FR that bends, which is then very likely to lead to worse or even very poor, intolerable driving characteristics and the associated faster wear of the roller guides of the elevator system.

The publication CN 216105478 U describes a concept in which the car is supported upwards on both sides of the catch frame by means of tension/compression struts, in particular by means of eight struts, with the struts engaging on two opposite sides on the floor of the car and at an angle in the manner of a triangular arrangement upwards Catch frames are supported.

In this respect, there is interest in a lean and practical support solution that can be easily implemented for different elevator system designs.

Description of the invention

Based on this situation, it is an object of the present invention to provide a concept for aligning and supporting the floor unit of a car relative to the catch frame of an elevator system, by means of which, in particular in a phase before commissioning, efficient assembly and exact (particularly vertical) alignment of the car ( FK) in the catch frame (FR) is favored.

The object of the invention is achieved by the features of the independent main claims. Advantageous refinements are specified in the subclaims. If technically possible, the teaching of the respective subclaims can be combined as desired with the teaching of the other main and subclaims.

In particular, the object is therefore achieved by a method for aligning and stabilizing the floor unit of a lift car in a catch frame of an elevator system, in particular before or in connection with the assembly or commissioning of the elevator system, the floor unit arranged within the catch frame being tensioned downwards relative to one The section of the catch frame arranged below the base unit is aligned and stabilized by setting a (predefined/predefinable) tensile force between respective fastening points provided for this purpose (on the base unit and on the catch frame). This provides numerous advantages in terms of handling, work efficiency, standardizability and accuracy of the alignment of the car or its floor unit.

Advantageous aspects of the claimed invention are explained below and preferred modified exemplary embodiments of the invention are described further below. Explanations, in particular regarding advantages and definitions of features, are essentially descriptive and preferred, but not limiting, examples. If an explanation is to be understood as limiting, this will be expressly mentioned.

In other words, it is particularly provided that the ground unit is based on tensile force Tensioned downwards to the catch frame, by dispensing with rigid pressure force transmitting means.

The method or assembly kit according to the invention makes it possible to align the floor (or the floor unit) of the FK very precisely within a very short time and using comparatively few tools and to stabilize it in such a way that fitters can mount the entire FK on the floor of the FK in an advantageous manner, whereby this process can be carried out independently of an individual height position of the FR. The assembly described here using traction devices such as lashing straps (e.g. ratchet straps) has proven to be very simple, cost-effective and safe, although it is also possible to limit it to very few simple parts and the assembly of the FK can be carried out more efficiently and safely. and the work result can also be of higher quality. The ride quality improves and, for example, a significantly longer service life can be expected with regard to the roller guides, especially since the FK and FR can be aligned exactly perpendicular to one another, so that the roller guides do not flatten due to a tense FK (no asymmetrical permanent loads). In this respect, costs that would arise due to multiple alignment of the FK can also be eliminated. The measures according to the invention can be implemented both in classic elevator systems with driving cabins that can only be moved in the vertical direction and in more modern elevator systems with driving cabins that can be moved in both the vertical and horizontal directions, for example using an adapter by means of which a good/sufficient lever length can be achieved downwards can be ensured. The following advantages can also be highlighted: variable usability regardless of the size of the elevator car, good adjustability, reproducibility and standardizability. The worldwide availability of the components to be used can also be ensured in a comparatively simple manner, whereby an advantageously small pack size (considerable dimensions for logistical steps) can also be maintained, which also results in logistical advantages, particularly in geographically remote or difficult-to-access locations.

To date, rigid tension/compression struts have been used to stabilize or support the base unit of the FK, but these are comparatively expensive and also disadvantageously bulky in terms of handling, with numerous variants having to be taken into account (individual length dimensions), which means that system compatibility is rather low. In addition, experience has shown that stabilizing or supporting the base unit of the FK using support supports, especially in the so-called “High Rise” (HR) sector, has proven to be very complex or even impossible due to the much deeper shaft pits or open group shafts. The concept according to the invention, on the other hand, can ensure a slim application with good handling and ergonomics, and the reusability of the same means for other (even different) elevator systems can be easily ensured. For example, the FK is attached to several points on the cabin floor and to the underbody or lower support of the safety frame using traction means in the form of tie rods/tension struts and/or ratchet straps (tensioning straps). A spirit level or similar measuring instrument can also be used to fine-tune the alignment of the cabin floor (floor unit) relative to the FR. This also results in the following advantages: variable usability, especially regardless of the size of the cabin, good adjustability, cost efficiency or no noticeable additional costs, easy availability, especially worldwide. Last but not least, there are advantages in that the (traction) means described here do not complicate or hinder the assembly of side slats and similar other components.

According to one exemplary embodiment, at least two traction means are/are provided (e.g. traction struts, tension straps), each of which acts between an attachment point on the base unit and an attachment point on the catch frame. Last but not least, this also enables targeted application of force. Belts, bands or similar non-rigid traction devices are preferably used. Traction means with minimal stretch are preferably used, for example traction means consisting of or comprising materials such as PE-UHMW or HMPE, for example comprising corresponding flexible fibers. Compared to steel cables or the like, such textile-like materials have the advantage of high flexibility and good processability into band/belt material.

According to one exemplary embodiment, the alignment and stabilization takes place exclusively by means of the traction means based on tensile forces. Last but not least, this also makes standardization based on just a few components easier. The avoidance of compressive forces also makes it possible to completely dispense with rigid, unwieldy and also disadvantageously incompatible pressure struts or the like in terms of device technology.

According to one exemplary embodiment, individual attachment points provided for the traction means are on the base unit and on the catch frame a triangular or trapezoidal arrangement is provided, in particular with the traction means in a mirror-symmetrical arrangement between the attachment points (i.e. in a mirror-symmetrical trapezoidal arrangement or isosceles triangular arrangement). This promotes symmetrical application of force with good leverage. The triangular or trapezoidal arrangement corresponds to the geometric surface delimited by the mounted/tensioned traction means (or the corresponding surface section in between, when viewed from the side of the catch frame), with the head (narrowest section) or the tip of the triangle/trapezoid being the deepest Point is arranged, i.e. at the bottom of the catch frame. Depending on whether two or more attachment points are provided on the catch frame at the same height position or only one attachment point is provided for several traction devices, the result is a trapezoidal arrangement or a triangular arrangement. The angle spanned by the traction means relative to the vertical is comparatively acute/small, for example in the range of 25 to 45 degrees (particularly when the traction means engage the sections of the floor unit that are furthest to the side). The smaller this angle, the larger the vertical support lever for the traction devices. Optionally, an adapter that extends downwards can be mounted on the catch frame to increase the size of the vertical support lever.

According to one exemplary embodiment, individual or all of the fastening points provided for the traction means are predefined by fastening means in the form of eyelets or eyes, the fastening means preferably being reversibly mountable, for example being screwed into both the base unit and the catch frame. This also promotes standardization for numerous different design variants. In this respect, only screw-in holes need to be provided on the catch frame or on the base unit, or the traction devices are attached in another way. However, with regard to standardization and occupational safety, predefined force transmission points are advantageous, at which the tensile forces should attack with a predefined/predefinable amount and a predefined effective lever.

According to one exemplary embodiment, lashing straps or ratchet straps are at least partially provided as traction means. This type of traction device can be used in a particularly variable manner and is also easily scalable in number and size and can be provided particularly easily and inexpensively (simplified logistics).

According to one exemplary embodiment, at least one adapter is provided on the catch frame, by means of which a vertical support distance between the floor unit of the car and the effective attachment/force introduction point of the respective traction means on the catch frame is increased downwards, in particular such that the traction means are at an angle in the range of 25 up to 60° (degrees) can be arranged/braced relative to the vertical, preferably at an angle in the range of 25 to 45°. This results in good leverage and therefore does not require upward support for sections of the catch frame above the base unit; In this respect, it is sufficient for a fitter to carry out the process described here by working below or to the side of the floor unit.

According to one exemplary embodiment, the tensile force applied by the traction means is recorded and optionally also documented using at least one tensile force measuring unit. This can also improve standardization and accuracy as well as worker safety. Thanks to the use of traction devices, comparatively large constraining forces can be applied to brace the floor unit, without the risk of struts becoming wedged or blocking each other. The tension can be released/loosened again in a simple manner by slowly relaxing at least one of the traction means again.

The task previously defined above is also solved by a mounting kit for aligning and stabilizing the floor unit of a car in a catch frame of an elevator system, in particular before or in connection with the assembly or commissioning of the elevator system, in particular assembly kit set up to carry out the steps described above Method, wherein the assembly kit comprises traction means, by means of which the base unit can be aligned downwards to a section of the catch frame arranged below the base unit and can be stabilized by adjusting a (predefined/predefinable) tensile force between respective fastening points provided for this purpose (on the base unit and on the catch frame). This provides the advantages mentioned above.

Optionally, the mounting kit also includes reversibly mountable fasteners, in particular in the form of eyelets or eyes that can be screwed into the base unit and/or the catch frame.

According to one exemplary embodiment, the assembly kit comprises an adapter which is set up to be provided on the catch frame in such a way that a vertical support distance (lever) between the floor unit (in particular its underside) of the car and the effective attachment/force application point of the respective traction device on the catch frame is enlarged below, in particular in such a way that the traction means can be arranged/braced at an angle in the range of 25 to 60° relative to the vertical. This promotes high accuracy and also good leverage.

The task previously defined above is also achieved by using a mounting kit for aligning and stabilizing the floor unit of a car in a catch frame of an elevator system, in particular before or in connection with the assembly or commissioning of the elevator system, the assembly kit comprising traction means by means of which the floor unit can be moved aligned below to a section of the catch frame arranged below the base unit and stabilized by adjusting a tensile force between respective fastening points provided for this purpose, in particular use of the mounting kit in a method previously described above, optionally in combination with an adapter mounted on the catch frame for extending an effective support lever downward. This provides the advantages mentioned above, especially when using the mounting kit described above.

Brief description of the drawings

• 1A, 1B jeweils in schematischer Darstellung in einer stirnseitigen Ansicht und in einer Seitenansicht eine Bodeneinheit und einen Fangrahmen eines Aufzugsystems, bei welchem die vorliegende Erfindung gemäß Ausführungsbeispielen zur Anwendung kommen kann;
• 2 in schematischer Darstellung in perspektivischer Ansicht eine Einbausituation einer Bodeneinheit in einem Fangrahmen gemäß Maßnahmen des Standes der Technik;
• 3A in schematischer Darstellung in einer Seitenansicht eine Einbaumaßnahme unter Verwendung von druckstabilen Streben, bezüglich welcher die vorliegende Erfindung eine alternative Maßnahme vorschlägt;
• 3B in schematischer Darstellung in einer Seitenansicht Zugmittel, die gemäß einem erfindungsgemäßen Verfahren zwischen Bodeneinheit und Fangrahmen verspannt sind/wurden;
• 3C in schematischer Darstellung in einer Seitenansicht Zugmittel und einen Adapter eines Montagekits gemäß Ausführungsbeispielen der Erfindung, wobei der Adapter und die Zugmittel gemäß einem erfindungsgemäßen Verfahren zwischen Bodeneinheit und Fangrahmen wirkend verspannt sind/wurden;
• 4A, 4B, 4C jeweils in schematischer Darstellung in perspektivischen Ansichten die Anwendung eines erfindungsgemäßen Verfahrens im Zusammenhang mit dem Vorsehen eines den vertikalen Stützhebel verlängernden Adapters am Fangrahmen, wobei der Adapter Bestandteil eines Montagekits gemäß Ausführungsbeispielen der Erfindung ist;
• 5 in schematischer Darstellung einzelne Schritte eines Verfahrens gemäß Ausführungsbeispielen der Erfindung;
• 6 in schematischer Darstellung ein Montagekit gemäß Ausführungsbeispielen der Erfindung;

The invention is explained in more detail below with reference to the accompanying drawings using preferred exemplary embodiments. The wording figure is abbreviated to Fig. in the drawings. Show it

• 1A , 1B each in a schematic representation in a front view and in a side view of a floor unit and a catch frame of an elevator system in which the present invention can be used according to exemplary embodiments;
• 2 a schematic representation in a perspective view of an installation situation of a floor unit in a catch frame according to measures of the prior art;
• 3A a schematic representation in a side view of an installation measure using pressure-stable struts, with respect to which the present invention proposes an alternative measure;
• 3B in a schematic representation in a side view traction means which are/were clamped between the base unit and the catch frame according to a method according to the invention;
• 3C in a schematic representation in a side view traction means and an adapter of a mounting kit according to exemplary embodiments of the invention, the adapter and the traction means being/were clamped effectively between the base unit and the catch frame according to a method according to the invention;
• 4A , 4B , 4C each in a schematic representation in perspective views of the application of a method according to the invention in connection with the provision of an adapter which extends the vertical support lever on the catch frame, the adapter being part of a mounting kit according to exemplary embodiments of the invention;
• 5 a schematic representation of individual steps of a method according to exemplary embodiments of the invention;
• 6 a schematic representation of an assembly kit according to exemplary embodiments of the invention;

Detailed description of the exemplary embodiments

The exemplary embodiments described are merely examples that can be modified and/or supplemented in a variety of ways within the scope of the claims. Each feature described for a particular embodiment may be used alone or in combination with other features in any other embodiment. Each feature that is described for an embodiment of a particular claim category can also be used in a corresponding manner in an embodiment of another claim category. The reference numbers are initially described in general terms; an individual reference is made in connection with the respective description of the figures.

An assembly kit 20 is provided for aligning and stabilizing a floor unit 12 of a lift car (FK) 11 in a catch frame (FR) 14 of an elevator system 10 (or in an elevator system), in particular before or in connection with the assembly or commissioning of the elevator system. For this purpose, the base unit 12 arranged within the catch frame 14 is aligned by means of traction means 16, which are clamped downwards to a section of the catch frame 14 arranged below the base unit 12, the base unit 12 being adjusted by adjusting a/the tensile force of the traction means 16 between respective fastening points provided for this purpose 18 is stabilized. This provides good manageability and also logistical advantages. The use of support supports 1 and/or dimensionally stable struts 3 can also become unnecessary. For example, tension belts, rope or similar traction force transmitting means 16.1 can be used as traction means. The traction means 16, 16.1 are preferably arranged in a triangular or trapezoidal arrangement A3 or mark a corresponding geometry of the lines of traction force action relative to the ground plane. The traction means can each be clamped between specifically intended and correspondingly locally arranged fastening means (traction force coupling points) 18, in particular between screw eyes or fastening eyes on the base unit and the catch frame. Advantageously, a comparatively small support angle α is realized relative to the vertical, i.e. a comparatively strongly vertically oriented direction of tensile force action. Optionally, an adapter 14.1 can be provided on the catch frame, in particular for the purpose of extending the vertical support lever downwards. Optionally, a predefined/predefinable tensile force can also be realized by means of the traction means, in particular by using at least one tensile force measuring unit 19 (in particular a force sensor, for example integrated into the traction means).

Individual steps of the method can also be described as follows: In a step S1, fastening means are provided on the base unit and/or on the catch frame, and/or traction means are fastened on the one hand to the base unit and on the other hand to the catch frame; In a step S2, the floor unit arranged within the catch frame is aligned by means of traction means by tensioning the traction means downwards to a section of the catch frame arranged below the ground unit, and optionally also the (horizontal) target/actual orientation of the ground unit is recorded vertically catch frame; In a step S3, the floor unit is stabilized by adjusting a/the pulling force of the traction means; In a step S4, a triangular arrangement or trapezoidal arrangement is formed using the geometric surface delimited by the traction means; In an optional additional step S5, a tensile force acting on at least one of the traction means is detected and optionally also documented; In a step S6, the traction means and optionally also the fastening means are dismantled; In a step S7, the assembly of the floor unit or the entire car in the catch frame is completed.

In 1A , 1B the relative arrangement and orientation of a floor unit 12 in a catch frame 14 is illustrated.

In 2 an assembly or alignment of a floor unit 12 using support supports 1 is illustrated.

In 3A is an assembly or alignment of a floor unit 12 using rigid pressure force-transmitting struts 3 illustrated, the struts, among other things, also being supported upwards to a point above the floor unit.

In 3B is an alignment and stabilization of a floor unit 12 in the catch frame 14 using exclusively flexible traction means 16.1 illustrated, the individual traction means being arranged in a trapezoidal arrangement A3 (conical orientation) and aligned at a support angle α of approximately 40 °.

In 3C is an alignment and stabilization of a floor unit 12 in the catch frame 14 comparable to 3B shown, with the catch frame being extended downwards, using an adapter 14.1.

In 4A , 4B , 4C Details of a substructure of a catch frame 14 are shown, for which the use of an adapter 14.1 is particularly advantageous.

In 5 The process steps S1 to S7 are listed, although the chronology does not have to be adhered to exactly. First, traction devices S1 are attached to the base unit on the one hand and to the catch frame on the other. Then the traction means are tensioned in step S2, whereby a triangular arrangement or trapezoidal arrangement A3 can be formed (step S4). The ground unit can be stabilized S3 by adjusting the pulling force of the respective traction device as precisely as possible. Optionally, the tensile force can be recorded and documented (step S5). The assembly aids of the assembly kit described here can then be dismantled (step S6). The assembly of the floor unit or the entire car in the catch frame can then be completed (step S7).

In 6 Individual components 16, 18, 19 of one of the assembly kits 20 described here are shown. The fastening means 18 (eg screw-in eyes) can also be pre-installed.

Reference symbol list

1

Support carrier

3

dimensionally stable strut(s)

10

Elevator system, elevator system

11

Car (FK)

12

Ground unit

14

Catch frame (FR)

14.1

Adapter to catch frame (support lever extended downwards)

16

traction means

16.1

Tension belt, rope or similar means of transmitting tensile force

18

Fastening means (traction force coupling point), in particular comprising or defined by a screw eye or fastening eye

19

Tensile force measuring unit, in particular force sensor, e.g. integrated into traction means

20

Mounting kit

A3

Triangular or trapezoidal arrangement or corresponding geometry of the tensile force action lines relative to the ground level

α

Support angle or direction of tensile force relative to the vertical

S1

Providing fastening means on the base unit and/or catch frame, and/or attaching traction means on the one hand to the base unit and on the other hand to the catch frame

S2

Aligning the floor unit arranged within the catching frame by means of traction means by tensioning the traction means downwards to a section of the catching frame arranged below the ground unit, and optionally recording the (horizontal) target/actual orientation of the ground unit vertically in the catching frame

S3

Stabilize the ground unit by adjusting the pulling force of the traction devices

S4

Forming a triangular arrangement or trapezoidal arrangement using the geometric surface delimited by the traction means, in side view

S5

Detecting and optionally also documenting a tensile force acting on at least one of the traction means

S6

Dismantling the traction devices and optionally also the fasteners

S7

Completing the assembly of the floor unit or the entire car in the FR

QUOTES INCLUDED IN THE DESCRIPTION

This list of documents listed by the applicant was generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• CN 216105478 U [0004]

Claims (10)

Method for aligning and stabilizing a floor unit (12) of a car (11) in a catch frame (14) of an elevator system (10), in particular before or in connection with the assembly or commissioning of the elevator system, characterized in that the within the catch frame (14) arranged base unit (12) is aligned by means of traction means (16), which are/are clamped downwards to a section of the catch frame (14) arranged below the base unit (12), the base unit (12) being adjusted by adjusting a/the traction force of the traction means (16) is stabilized between respective fastening points (18) provided for this purpose. Procedure according to Claim 1 , wherein at least two traction means (16.1) are/are provided, each of which acts between an attachment point (18) on the base unit (12) and an attachment point on the catch frame (14); and/or wherein the alignment and stabilization takes place exclusively by means of the traction means (16) based on tensile forces. Method according to at least one of the Claims 1 or 2 , wherein individual fastening points (18) provided for the traction means (16) are provided on the base unit (12) and on the catch frame (14) in a triangular or trapezoidal arrangement, in particular with the traction means (16) in a mirror-symmetrical arrangement between the fastening points (18 ). Method according to at least one of the preceding claims, wherein individual or all of the fastening points (18) provided for the traction means (16) are predefined by fastening means in the form of eyelets or eyes, the fastening means preferably being reversibly mountable, for example both on the base unit (12 ) and can be screwed into the catch frame (14). Method according to at least one of the preceding claims, wherein at least some lashing straps or ratchet tension straps (16.1) are provided as traction means (16). Method according to at least one of the preceding claims, wherein at least one adapter (14.1) is provided on the catch frame (14), by means of which a vertical support distance between the floor unit (12) of the car (11) and the effective attachment/force application point of the respective traction means ( 16.1) on the catch frame (14) is enlarged downwards. Method according to at least one of the preceding claims, wherein the tensile force applied by means of the traction means (16) is recorded and optionally also documented by means of at least one tensile force measuring unit (19). Assembly kit (20) for aligning and stabilizing a floor unit (12) of a car (11) in a catch frame (14) of an elevator system (10), in particular before or in connection with the assembly or commissioning of the elevator system, in particular assembly kit set up to carry out the steps of Method according to at least one of the preceding claims, wherein the assembly kit (20) comprises traction means (16) by means of which the base unit (12) can be aligned downwards to a section of the catch frame (14) arranged below the base unit and by adjusting a traction force between each one provided fastening points (18) can be stabilized. Installation kit according to Claim 8 , wherein the mounting kit (20) comprises an adapter (14.1), which is set up to be provided on the catch frame (14) in such a way that a vertical support distance between the floor unit (12) of the car (11) and the effective attachment/force application point of the respective traction device (16.1) on the catch frame (14) is increased downwards. Use of a mounting kit (20) for aligning and stabilizing a floor unit (12) of a car (11) in a catch frame (14) of an elevator system (10), in particular before or in connection with the assembly or commissioning of the elevator system, wherein the assembly kit (20) Traction means (16), by means of which the base unit (12) is aligned downwards to a section of the catch frame (14) arranged below the base unit (12) and can be stabilized by adjusting a tensile force between respective fastening points (18) provided for this purpose, in particular in a procedure according to at least one of the Claims 1 until 7 .

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