WO2020193088A1

WO2020193088A1 - Variable driver system

Info

Publication number: WO2020193088A1
Application number: PCT/EP2020/055557
Authority: WO
Inventors: Alexander Glas; Dominik FOLGER; Stefan RUNGE
Original assignee: Franz Xaver Meiller Fahrzeug- Und Maschinenfabrik - Gmbh & Co Kg
Priority date: 2019-03-28
Filing date: 2020-03-03
Publication date: 2020-10-01
Also published as: EP3947236A1; DE102019204321A1

Abstract

The present invention relates to a variable spreader driver (10) for jointly opening a lift car door and a lift shaft door, which spreader driver can be mounted on the lift car door, comprising a pair of first and second gripping elements (16, 18) which extend essentially in parallel and vertically and which can be moved between an opened position, in which they are at a first horizontal distance from one another, and a closed position, in which they are at a second horizontal distance from one another, wherein the first horizontal distance is larger than the second horizontal distance; and an activation device (12) which is configured to move the first and the second engagement element (16, 18) between the opened and the closed position while maintaining their essential vertical extent. The spreader driver according to the invention also comprises a mounting plate (24) which is configured to be moved together with the second engagement element (18) and to bear the latter securely, for which purpose it comprises a multiplicity of circular drilled holes (24b) in a predefined arrangement; and the second engagement element (18) comprises a multiplicity of groups of circular drilled holes (18b) which are each aligned with one another according to the predefined arrangement, wherein according to the multiplicity of groups of circular drilled holes (18b) the second engagement element (18) can be mounted with different defined orientations on the mounting plate (24) by means of mounting elements (28).

Description

Variable driver system

description

The present invention relates to a variable spreading driver for the joint opening of an elevator car door and an elevator shaft door, which can be mounted on the elevator car door, comprising a pair of a first and a second engagement element which are located in the

Extend substantially parallel and vertically and which are displaceable between an open position, in which they have a first horizontal distance from one another, and a closed position, in which they have a second horizontal distance from one another, the first horizontal distance being greater than the second horizontal distance Distance is, and an actuating device which is adapted to the first and the second engagement element while maintaining their im

To shift substantially vertical extension between the open and the closed position.

Such spreading drivers are used according to the prior art to be transferred between a first configuration in which the engagement elements, also referred to as “swords”, are brought closer together so that the elevator car can be moved in the elevator shaft, and a second configuration. In this second configuration, in a state in which the elevator car is standing still opposite an elevator shaft door, the swords are removed from each other in the plane parallel to the planes of the two doors in order to finally cooperate with counter dogs which are provided on the elevator shaft door to allow joint opening and closing of the elevator car door and the elevator shaft door. This corresponds to the one mentioned above closed position corresponds to the state in which the elevator car is vertically movable in the elevator shaft, while the open position corresponds to the state in which the elevator car door and the

Elevator shaft door can be opened and closed together, so that in this case the elevator car has to be vertically immovable opposite the elevator shaft door.

Due to the large number of elevator systems available on the market, which can differ in many parameters, such as the fact whether the doors open on one side or in the middle opening doors, as well as in the numerous conceivable external dimensions of the corresponding doors, there is also a large number of spreading drivers of the generic type mentioned above are available on the market and in use in existing elevators. To a certain extent, these are wearing parts that need to be replaced from time to time. So up to now, a corresponding expansion driver had to be kept available as a spare part for every conceivable type of elevator door, which on the one hand means a great deal of effort in the production of such expansion drivers and thus increases costs, while on the other hand it always increases due to the lack of compatibility between the expansion drivers from different elevator manufacturers the spare parts of the corresponding manufacturer had to be used.

In order to remedy these disadvantages, a generic expansion driver has been proposed in EP 2 944 597 A2, in which one of the engagement elements is provided with a series of elongated holes, by means of which the relative position of the two engagement elements against each other in their open and closed positions can be adapted so that this expansion driver could replace a certain number of existing types of expansion drivers.

However, this increased flexibility was bought at the expense of the expansion driver from EP 2 944 597 A2 always being installed by one trained specialist had to be carried out, since the relative positioning of the two engagement elements to each other with the help of

Long holes had to be made extremely precisely in order to achieve the

Ensure proper operation of the device and prevent possible damage to the expanding driver or even one of the doors during operation. This elaborate assembly included multiple measurements of the distances mentioned and an elaborate final inspection, which was not only demanding for the mechanic concerned, but also time-consuming in any case.

It is thus the object of the present invention to provide a

provide generic variable expansion driver which eliminates the above-mentioned problems of the prior art and, on the one hand, has great flexibility in terms of its intended use as a replacement for different types of existing expansion drivers and, on the other hand, enables significantly simplified assembly compared to known expansion drivers with elongated holes.

For this purpose, the variable expansion driver according to the invention for the joint opening of an elevator car door and an elevator shaft door comprises a mounting plate which is set up for this purpose with the second

Engagement element to be jointly displaceable and to carry it firmly, for which purpose it comprises a plurality of circular bores in a predefined arrangement, wherein the second engagement element also comprises a plurality of groups of circular bores which are each aligned according to the predefined arrangement, wherein the second engagement element according to the plurality of groups of circular bores can be mounted in different defined orientations on the mounting plate by means of mounting elements.

In this way by providing the plurality of groups of circular bores on the second engagement element and its mountability a fixed number of different defined alignments of the second engagement element with respect to the mounting plate and thus also with respect to the first engagement element is created by means of a mounting plate, the second engagement element can be mounted according to the expanding driver to be replaced and its dimensions with the help of the circular bores, without fine adjustment is necessary, as would be the case with the provision of elongated holes for this purpose.

Thus, the assembly process of the invention is simplified

Expanding driver in such a way that it is only necessary to check which of the groups of circular bores on the second engagement element corresponds to the expansion driver to be replaced or the predetermined relative alignment between the first and second engagement element in the open and closed position, whereupon the assembly elements must be mounted in this way are that they attach the second engagement element according to the known or determined orientation. It goes without saying that the assembly elements must be suitable for allowing a fixed and precise assembly of the second engagement element on the assembly plate with minimal play and must accordingly be matched to the respective circular bores.

Although the plurality of circular bores in the mounting plate can in principle be arranged as desired, for reasons of space it is advisable, however, to arrange them all on a vertical line. Here and in the following, the term “vertical” as well as the term “horizontal” is to be understood in terms of a state in which the expanding driver according to the invention is mounted in its intended manner on an elevator car door.

Since the alignment of the circular bores in the mounting plate ultimately determines how the corresponding complementary circular bores in the individual groups are to be arranged on the second engagement element, the circular bores of the individual groups on the second engagement element can then likewise be arranged in a vertical line in the assembled state. Usually two

Circular bores in the mounting plate should be sufficient to ensure a secure attachment of the second engagement element to it in a non-twistable manner, but of course a larger number of assembly bores could also be provided if the geometry of the variable expansion driver according to the invention or other specifications, for example in the design of the elevator car door and / or the

Elevator shaft door, require this.

In some embodiments of the present invention, the

Multiple circular bores in the mounting plate

Include combinations of circular holes in the predefined arrangement. In this way, several possible

Attachment positions of the second engagement element created on the mounting plate, creating a further degree of freedom in the eventual

Positioning of the second engagement element is obtained. In particular, the mounting plate can comprise a plurality of parallel, vertically aligned rows of at least three circular bores which, assuming that the fastening of the second engagement element takes place at two points, allow variable positioning of the same in both the vertical and horizontal directions.

In order to reduce the cost of manufacturing the second engagement element and still, for example, to maximize the flexibility of the arrangement thereof with respect to the mounting plate, at least one of the circular bores in the second engagement element can be associated with two of the groups of circular bores. If one assumes, purely as an example, that the

Mounting plate in fact only comprises two circular bores, a single circular bore on the second engagement element can be used once aligned with one and once aligned with the other of the circular holes in the mounting plate. In this way, with a reduced number of circular bores in the second

Engagement element an increased number of relative alignments between the second engagement element and the mounting plate and thus between the first and second engagement element can be achieved, for example, multiple alignments can be achieved in the vertical direction if the multiple circular bores in the mounting plate are arranged vertically one above the other and thus several groups of Form pairs of two.

Although the number of groups of circular bores in the second engagement element is initially not specified, it is nevertheless advantageous if it is at least four or preferably even at least six, since each group of circular bores can in principle correspond to an expansion driver from the prior art , which can then be replaced by the expansion driver according to the invention. On the other hand, the possible number of groups of circular bores is of course not unlimited, since limitations are imposed here by the external dimensions of the second engagement element and the structural stability of the second engagement element is not imposed by an excessive number

Holes may be weakened.

In a further development of the variable expansion driver according to the invention, this can furthermore comprise a further mounting plate which is set up to firmly support the first engagement element and for this purpose comprises a plurality of circular bores in a predefined arrangement, the first engagement element then correspondingly having a plurality of May comprise groups of circular bores which are each aligned with one another according to the predefined arrangement, wherein the first engagement element can be mounted according to the plurality of groups of circular bores in different defined alignments on a further mounting plate by means of mounting elements. This structural measure not only enables the second engagement element to be positioned relative to the first engagement element by mounting the second engagement element in different positions, but also the first engagement element can in turn be mounted in different positions or orientations, which increases the flexibility of the variable spreading driver according to the invention once can increase significantly.

The plurality of circular bores in the further mounting plate can all be arranged on a vertically running line, so that both the further mounting plate and the first engagement element can be made relatively narrow in the horizontal direction. In such an embodiment, the horizontal distance between the two engagement elements is then only over different groups of

Circular bores set on the second engagement element, while the first engagement element is initially set in the horizontal direction to a single orientation. Alternatively, analogous to the embodiment of the mounting plate discussed above, several parallel, vertically aligned rows of circular bores could also be provided on the further mounting plate in order to allow variable positioning of the first engagement element in both the vertical and horizontal directions.

In order to increase the flexibility of the variable expansion driver according to the invention with regard to the orientation of the first and the second engagement element relative to one another, however, the

Mounting plate and / or the further mounting plate can be attached in at least two positions. Thus, a further degree of freedom is created, over which the final position of the first engagement element and the second engagement element can be determined relative to one another by already having their attachment points on the corresponding mounting plate can be arranged variably, since the mounting plate can already be provided in different positions.

In a particularly simple embodiment of the variable expansion driver according to the invention, the mounting elements can through

Countersunk screws and possibly locking nuts can be formed. Of course, however, other assembly elements are also conceivable, for example connecting pins could also be provided or the countersunk screws can be inserted without the provision of locking nuts with internal threads

certain of the circular holes interact.

Although the variable expansion driver according to the invention is already the subject matter of the present invention, protection is also sought for an elevator car door which comprises such an expansion driver and a drive device for driving the actuating device.

According to a further aspect, the present invention relates to a

Method for replacing an expanding driver for the joint opening of an elevator car door and an elevator shaft door on one

Elevator car door by a variable according to the invention

Spreading driver, which comprises the following steps:

a) in the mounted state of the expansion driver to be replaced, measure the following values:

Height of the respective middle positions of the first and the second engagement element in the open state,

Distance between the engagement elements in the open and closed state, and

Distance of the closing edge to a given point on the second engagement element,

b) Dismantling the expansion driver to be replaced, c) depending on the values determined in step a): selection of one of the groups of circular bores in the second engagement element,

d) Align the circular holes of the selected group with

Circular holes in the mounting plate, and

e) assembling the second engagement element by attaching the

Mounting elements in the aligned circular holes.

This method for replacing an existing expansion driver on an elevator car door, which is significantly simplified compared with the prior art, is made possible by the advantageous design of the variable expansion driver according to the invention discussed above and it is shown that the method can also be carried out by significantly less well trained people than this is the case with expansion drivers whose relative alignment of the first and second engagement elements is to be set by means of elongated holes.

In the event that a further mounting plate with a plurality of circular bores and a first engagement element with a plurality of groups of circular bores is provided, the method according to the invention can further comprise the following steps:

f) depending on the values determined in step a): selecting one of the groups of circular bores on the first engagement element,

g) Aligning the circular bores of the selected group with the circular bores of the additional mounting plate, and

h) assembling the first engagement element by attaching the

Mounting elements in the aligned circular holes.

These steps f) -h) can, depending on the type of construction of the existing Spreizmit takers and possibly depending on further boundary conditions before, after or parallel to steps c) -e) of the invention

Procedures are carried out. Finally, the method according to the invention, in the event that the

Mounting plate and / or the further mounting plate is / are attachable in at least two positions, furthermore comprise the following step: i) depending on the values determined in step a): attaching the

Mounting plate and / or the further mounting plate in one of the at least two positions.

Since, of course, the corresponding mounting plate must be mounted in front of the engagement element assigned to it, this step i) must be carried out before step c) and / or before step f).

Further features and advantages of the present invention will become clear from the following description of an embodiment when this is considered together with the accompanying figures. These show in detail:

Figure 1 shows a variable expansion driver according to the invention in an exploded view; and

Figure 2 shows the expansion driver from Figure 1 in the assembled state.

In Figure 1, a variable expansion driver according to the invention is first shown in an exploded view and very generally with the

Reference numeral 10 denotes. The expansion driver 10 comprises an actuating device 12, which in turn comprises two pivotable arms 14a and 14b, by means of which the relative displacement of the two engagement elements (blades) 16 and 18 can be effected. The

Actuating device 12 itself can be attached to an elevator car door, not shown, by means of two angle rails 20a and 20b, to which angle rails 20a and 20b it is in turn fastened with the aid of countersunk screws 21a and locking nuts 21b. The engagement elements 16 and 18 each have engagement sections 16a and 18a which, when the expansion driver 10 is in the assembled state, extend into the area of counter-engagement elements on an elevator shaft door, also not shown, and can engage with them in order to jointly open and close the elevator car door and the

To enable elevator shaft door.

The two engagement elements 16 and 18 are not directly connected to the two arms 14a and 14b, but there is still one each

Mounting plate 22 or 24 is provided, which in turn is connected to the two arms 14a and 14b and at the same time has mounting points for one of the engagement elements 16 and 18, so that when the arms 14a and 14b are pivoted, the mounting plates 22 and 24 move in the manner of one

Parallelograms move horizontally from one another or move towards one another, their orientation being maintained in the vertical direction, which of course also applies to the engagement elements 16 and 18 fixedly attached to the respective mounting plate 22 and 24.

To attach the mounting plates 22 and 24 to the two arms 14a and 14b, they each include two circular bores 22a and 24a, into which countersunk screws 26 can be inserted, which can then be screwed into corresponding internal threads on the arms 14a and 14b. Although in the embodiment shown in FIG. 1 only two circular bores 22a and 24a are provided for fastening the mounting plates 22 and 24 to the arms 14a and 14b, in a variant of the one shown

According to the invention expansion driver, several groups of such circular bores can also be provided on one or both of the mounting plates 22 and 24 in order to achieve a different relative positioning of the plates to one another.

Similarly, allow the groups of circular bores 16b and 18b on the two engagement elements 16 and 18 in cooperation with corresponding, each provided with an internal thread

Circular bores 22b and 24b in the mounting plates 22 and 24 allow the engaging elements 16 and 18 to be attached in numerous different ways

Alignments relative to one another with the aid of further countersunk screws 28. In particular, the first engagement element 16 has a vertical row of circular bores 16b, so that this engagement element 16 can be arranged in several different vertical positions, while the second engagement element 18 by its numerous groups of according to the Circular bores 24b in the mounting plate aligned circular bores 18b can allow variable positioning in both vertical and horizontal direction. In this context, it should also be noted that the mounting plate 24 also includes a plurality of circular bores 24b, each of which is used for attaching the

Engaging elements 18 in different vertical and horizontal

Positions can be used so that it thereby results in a further degree of freedom for the final alignment of the two engagement elements 16 and 18 in their assembled state.

This assembled state is now shown in Figure 2, the two engagement elements 16 and 18 at a maximum horizontal distance

are from each other, so in their open position. For this purpose, the two arms 14a and 14b have been wasted from the orientation shown in FIG. 1, which is wasted relative to the horizontal, into a strictly horizontal orientation.

In the figure 2 are also those of the circular bores 16b and 18b of the first and second engagement elements 16, 18, which actually by means of a countersunk screw 28 for fastening the same to the corresponding

Mounting plate 22 and 24 are used, denoted by 16B and 18B, respectively. It can be seen from FIG. 2 that the selected relative arrangement of the two engagement elements 16 and 18 is only one of numerous possibilities, especially when one considers that also through the provision of several combinations of circular bores on the mounting plate 24 yet another degree of freedom is created, so that the one shown

Spreading driver according to the invention due to its enormous geometric flexibility as a replacement for a large number of those on the market

Spreading drivers can serve without a fine adjustment of the

Positions of the engagement elements 16 and 18 by means of elongated holes is necessary. Rather, you just need the right combinations of

Circular bores are identified, which can be achieved by knowing the type of expansion driver to be replaced and looking up a table accordingly, or by simply measuring a few parameters of the expansion driver to be replaced.

Claims

Expectations

1. Variable expansion driver (10) for the joint opening of an elevator car door and an elevator shaft door, which can be mounted on the elevator car door, comprising:

- a pair of a first and a second engagement element (16, 18) which extend substantially parallel and vertically and which between an open position in which they have a first horizontal distance from each other and a closed position in which they have one have a second horizontal distance from one another, are displaceable;

wherein the first horizontal distance is greater than the second horizontal distance; and

- An actuating device (12) which is set up to displace the first and the second engagement element (16, 18) while maintaining their essentially vertical extension between the open and the closed position;

characterized in that

the actuating device (12) comprises a mounting plate (24) which is designed to be displaceable together with the second engagement element (18) and to support it firmly, for which purpose it comprises a plurality of circular bores (24b) in a predefined arrangement ; and

the second engagement element (18) comprises a plurality of groups of circular bores (18b) which are each aligned with one another in accordance with the predefined arrangement,

wherein the second engagement element (18) according to the plurality of groups of circular bores (18b) can be mounted in different defined orientations on the mounting plate (24) by means of mounting elements (28).

2. Variable spreading driver (10) according to claim 1, wherein the

A plurality of circular bores (24b) in the mounting plate (24) are all arranged on a vertically extending line.

3. Variable expansion driver (10) according to claim 1 or 2, wherein the plurality of circular bores (24b) in the mounting plate (24) comprises two circular bores.

4. Variable expansion driver (10) according to one of the preceding

Claims, wherein the plurality of circular bores (24b) in the mounting plate (24) comprises a plurality of combinations of circular bores (24b) in the predefined arrangement.

5. Variable expansion driver (10) according to one of the preceding claims, wherein at least one of the circular bores (24b) in the second engaging element (24) to two of the groups of

Circular bores (24b) is associated.

6. Variable expansion driver (10) according to one of the preceding

Claims, wherein the second engagement element (24) comprises at least four, preferably at least six groups of circular bores (24b).

7. Variable expansion driver (10) according to one of the preceding

Claims, further comprising a further mounting plate (22) which is set up to firmly support the first engagement element (16) and for this purpose comprises a plurality of circular bores (22b) in a predefined arrangement; and

the first engagement element (16) has a plurality of groups of

Comprises circular bores (16b) which are each aligned with one another according to the predefined arrangement; wherein the first engagement element (16) according to the plurality of groups of circular bores (16b) in different defined orientations on the further mounting plate (22) by means of

Mounting elements (28) can be mounted.

8. Variable expansion driver (10) according to the previous one

Claim, wherein the plurality of circular bores (22b) in the further mounting plate (22) all on a vertically extending

Line are arranged.

9. Variable expansion driver (10) according to one of the preceding claims, wherein the mounting plate (24) and / or the further mounting plate (22) can be attached in at least two positions.

10. Variable expansion driver (10) according to one of the preceding claims, wherein the mounting elements are formed by countersunk screws (28) and optionally locking nuts.

11. Elevator car door, comprising a variable expansion driver (10) according to one of the preceding claims and one

Drive device which is adapted to the

Drive actuating device (12).

12. Procedure for replacing an expansion driver for the

joint opening of an elevator car door and one

Elevator shaft door on an elevator car door by means of a variable expanding driver (10) according to one of Claims 1 to 10, comprising the following steps:

(a) in the mounted state of the expansion driver to be replaced, measurement of the following values: o Height of the respective middle positions of the first and second engagement elements in the open state, o Distance between the engagement elements in the open and closed state, and

o Distance of the closing edge to a predetermined point on the second engagement element;

(b) dismantling the expansion driver to be replaced;

(c) Depending on the values determined in step (a): selecting one of the groups of circular bores (18b) on the second engagement element (18);

(d) aligning the circular bores (18b) of the selected group with the circular bores (24b) of the mounting plate (24); and

(e) assembling the second engagement element (18) by attaching the assembly elements (28) in the aligned

Circular bores (18b, 24b).

13. The method of claim 12, further comprising the steps of:

(f) Depending on the values determined in step (a): selecting one of the groups of circular bores (16b) on the first engagement element (16);

(g) aligning the circular bores (16b) of the selected group with the circular bores (22b) of the further mounting plate (22); and

(h) mounting the first engagement element (16) by attaching the mounting elements (28) in the aligned circular bores (16b, 22b),

where steps (f) - (h) before, after or parallel to steps (c) -

(e) can be performed.

14. The method according to claim 12 or 13, comprising the step: (i) Depending on the values determined in step (a): attaching the mounting plate (22) and / or the further mounting plate (24) to one of the at least two positions,

wherein step (i) is carried out before step (c) and / or before step (f).