EP2860145A2 - Folding door with an inclined guide track - Google Patents

Abstract

Elevator car and / or elevator shaft door assembly 1 with at least one foldable door system 2 and a drive for opening and closing the door system; the door system in turn having a leading and a trailing door wings 4,5, wherein the trailing door has a first axis of rotation 6 and a second axis of rotation 7, via which it is connected to the leading door and wherein the leading door 4 a third, translational along the guideway 9 of a guide rail 10 has a rotatable axis 8 and the said axes of rotation are realized such that the doors are folded or unfolded when opening or closing with their main surfaces and the door leaves are stretched in the closed position of the door system, wherein the guideway is inclined, so that the third axis of rotation with the leaves open, if they form an elevator car door, lies further inside the car than with closed door leaves, and so that the third axis of rotation, when the door leaves form an elevator shaft door, continues to be shaft-out with the door leaves open is as closed doors and / or wherein the guideway is inclined.

Description

The invention relates to a Aufzugsfahrkorbtüren- and / or elevator shaft door assembly with at least one foldable door system, which comprises at least two pivotally interconnected door leaves. In this door system, the leading door is driven directly by the door drive and the door leaves are in the closed state relative to each other completely or substantially stretched.

In many cases elevator car or hoistway doors are designed as sliding doors, which consist of two or more door leaves, which are pushed aside to open the door. Even if the wings of such doors often slide one behind the other, so to speak telescoping, such door constructions require considerable lateral installation space. Where this is not available, so-called folding doors are used. This especially where older elevators, which were not equipped with car doors at the time, to be retrofitted to adapt to the current state of the art.

In practice, such a folding door usually consists of a total of four door leaves.

In such a folding door usually only the leading door leaf is guided on the bottom side in a guide groove of the door threshold.

The special kinematics of the folding door brings it with it that the often pin-shaped guide element with which the leading door is guided in the rectilinear guide slot of the door threshold, not concealed directly under the guided by him door leaf can be arranged, but at the bottom of a small arms V is attached, which usually protrudes from the large main surface of the leading door leaf.

This is annoying because the said arm with completely open door in the released by the folded door, open door cross-section, so that careless elevator users can hang on it with his foot and not least wheelchair users, because of just in older elevators often only very narrow clear door cross-section must pass close to the folding door, be obstructed. The same applies analogously to goods lifts for users of sack trucks or pushcars.

Accordingly, it is the object of the invention to provide a folding door, as required in completely open state less space in the clear door opening than the previously known folding doors.

This object is achieved by the means of claim 1. The dependent claims describe advantageous embodiments and the independently protected guide rail.

Accordingly, the solution of this task by means of a Aufzugsfahrkorb- and / or elevator shaft door arrangement. This has in each case with at least one foldable door system, which consists of two door leaves, a leading and a lagging, wherein "leading" and "lagging" based on the movement performed when closing, as is apparent from the figures. In addition, there is a drive for opening and closing the door system. The trailing door has a first axis of rotation and a second axis of rotation, via which it is connected to the leading door. In this case, the leading door - preferably at least on the bottom side - on a third, translationally along the guide rail of a guide rail feasible axis of rotation. The said axes of rotation are realized in such a way that, when the doors are opened or closed, their main surfaces fold or unfold and the door leaves are stretched in the closed position of the door system. By "stretched" is meant a "full stretched" or preferably a "substantially stretched". The invention is characterized in that the guideway extends obliquely, so that the third axis of rotation when the door leaves are open, if they form a lift car door, further inside in the car than with closed doors and if they form a lift shaft door, with open doors further out bay as with closed doors.

The term "substantially stretched" is preferably designed to be functional: a door is substantially stretched when, in its fully open state, it can not be pushed back, or only with difficulty, by the force applied to reopen it - because the door leaves and pivot axes do so lie that the re-opening force applied can apply no torque or no for safe, permanently trouble-free re-opening sufficient torque that folds the door leaves.

In the manner according to the invention, even when the door is completely closed and possibly completely stretched, the door leaves and the vector, which are later again opened to open the completely closed door, all lie in one plane, so that the force applied for opening is difficult or impossible capable of generating the torque required to refold the door leaves. It is unnecessary to move the third axis of rotation by means of an open door in the clear door opening projecting arm in an area clearly outside the leading door leaf.

Regardless of the existing claim 1 protection is claimed for a sibling claim, having the following features and may optionally be combined with one or more of the other explicitly established claims: Aufzugsfahrkorb- and / or elevator shaft door assembly (1) with at least one foldable door system ( 2), wherein the door system in turn has a leading and a trailing door (4, 5), wherein the trailing door (5) has a first axis of rotation (6) and a second axis of rotation (7) via which it with the leading door ( 4) and wherein the leading door leaf (4) has a third axis of rotation (8) which can be guided translationally along the guide track (9), preferably a guide rail (10), and the said axes of rotation are realized such that the door leaves (4, 5 ) when opening or closing with their main surfaces fold or unfold and the door leaves (4, 5) in Schli Preferably, the door system is preferably substantially stretched, characterized in that the guide track runs obliquely, so that the third axis of rotation, when these doors are an elevator car door, lies further inside the car than when the door leaves are closed and if they form an elevator shaft door. when the door leaves open further bay outward than in closed doors and / or characterized in that the guideway is inclined. As can be seen with reference to the figures and the subclaims, an oblique course with respect to the outer edges of the guide rail is hereby meant.

It may be beneficial if the guideway runs continuously and steadily along a straight line.

Preferably, however, it is provided that the guideway runs continuously and continuously curved.

For some applications, it is particularly advantageous if the guideway runs steadily but with locally different curvature radius.

In the context of a preferred embodiment, it is provided that the third axis of rotation lies on a line whose imaginary extension extends within the door leaf having a certain thickness D.

Preferably, it is provided that the third axis of rotation outside of its associated door leaf (preferably more specifically: outside the material of the associated door leaf) is located and arranged so that they are open with the door leaves between the clear door opening facing away from the main surface of the leading door and the clear door opening facing the main surface of the trailing door leaf is located.

It is particularly advantageous if the third axis of rotation and preferably also the bolt embodying it and the associated holding device do not protrude beyond the front edge (11) of the leading door leaf;
In a preferred embodiment, it is provided that the first axis of rotation, which keeps the trailing door pivotally about a spatially fixed predetermined axis, adjacent to the guideway.

Independent protection is also claimed for a guide rail which has at least one guideway which extends obliquely relative to the outer edges of the guide rail.

Preferably, the guide rail according to the invention is made of a one-piece sheet metal or extruded profile, wherein a sheet metal profile is preferred and the sheet metal profile is integral from the house and therefore at least substantially not consists of screwed together, glued welded or crimped individual pieces. Notwithstanding this, in addition to the guide rail, a lining may be provided, which is involved in the leadership or this assumes and at least one pedestal. The whole then forms a guide rail arrangement with the participation of said guide rail.

Ideally, the guide rail is a profile with a cross-section consisting of a plate that merges at both ends into a local U-side

Preferably, the guide rail assembly includes at least one pedestal, wherein the guide rail rests with its upper inner side on the at least one, preferably only locally formed pedestal against which the guide rail preferably with the help of a from above / outside inserted through the guide rail, ideally equipped with a countersunk head Screw is secured or clamped.

Preferably, the podium belonging to the guide rail assembly is a section of a pipe.

Ideally, a guide rail arrangement is carried out in which preferably completely inside the guide rail and possibly at a distance from its inner top a chuck is arranged, which at least essentially takes over or supports the actual guiding function.

In a further development of the guide rail or guide rail arrangement is provided that the feed is held by at least one, preferably a plurality of pedestals in its position, wherein the pedestals can be part and preferably a weld-on part of the feed.

Independent protection is also claimed for an elevator with a guide rail according to the invention and / or an elevator door arrangement according to the invention.

• Die Fig. 1 zeigt den Stand der Technik
• Die Fig. 2 zeigt eine Ausschnittvergrößerung aus der Fig. 2
• Die Fig. 3 zeigt eine aus einem vorlaufenden und einem nacheilenden Türblatt bestehende Türenanordnung nach Maßgabe der Erfindung, bei vollständig geöffneter Tür.
• Die Fig. 4 zeigt die von Fig. 3 gezeigte Türenanordnung in teilweise geöffnetem Zustand, schräg von links-vorne.
• Die Fig. 5 zeigt die von Fig. 3 gezeigte Türenanordnung in teilweise geöffnetem Zustand, schräg von rechts-vorne.
• Die Fig. 6 zeigt die von Fig. 3 gezeigte Türenanordnung in einem Vertikalschnitt senkrecht zur Längsachse der Führungsschiebe bei voll geöffnetem Zustand.
• Die Fig. 7 zeigt eine Alternative zu Fig. 6 in vergleichbarer Darstellung.
• Die Fig. 8 zeigt eine Nahaufnahme die illustriert, wie die von Fig. 4 gezeigte Türenkonstruktion aussieht, wenn sie zusätzlich mit einem Futter 12 ausgerüstet wird.
• Die Fig. 9 zeigt eine Alternative zu Fig. 6 und 7 in vergleichbarer Darstellung, sie dient zur Veranschaulichung des Futters und dessen Wirkungsweise und Vorteilen.

Further advantages, effects and design options will become apparent from the following description of the embodiments with reference to FIGS.

• The Fig. 1 shows the state of the art
• The Fig. 2 shows a section enlargement of the Fig. 2
• The Fig. 3 shows a consisting of a leading and a trailing door leaf door assembly according to the invention, with the door fully open.
• The Fig. 4 shows the of Fig. 3 Door assembly shown partially open, obliquely from left to front.
• The Fig. 5 shows the of Fig. 3 Door assembly shown partially open, obliquely from the right-front.
• The Fig. 6 shows the of Fig. 3 shown door assembly in a vertical section perpendicular to the longitudinal axis of the guide slide in the fully open state.
• The Fig. 7 shows an alternative to Fig. 6 in a comparable representation.
• The Fig. 8 shows a close-up which illustrates how the of Fig. 4 shown door construction looks, if it is additionally equipped with a chuck 12.
• The Fig. 9 shows an alternative to Fig. 6 and 7 in a comparable representation, it serves to illustrate the feed and its mode of action and advantages.

• Es ist zumindest bodenseitig eine Führungsschiene vorhanden, die eine gerade Linie bildende und i. d. R. parallel zur Fahrkorbaußenkante verlaufende Führungsnut 9 aufweist.

The Fig. 1 , which shows the state of the art, illustrates the problem:

• At least one guide rail is present on the bottom side, which has a guide groove 9 which forms a straight line and generally runs parallel to the outer edge of the vehicle wheel.

Such folding doors are usually actuated by a designed as a linear drive, not shown here figuratively door drive, which is fixed to the above in the area to be explained in more detail third axis of rotation 8 on the leading door 4 and the leading door in the opening or closing direction draws. The linear drive is usually an endless drive belt is used, which runs over two pulleys.

If the folding door were constructed so that the leading door 4 and the trailing door 5 with fully closed door in a fully extended position, ie lie exactly in a single common plane, in which also the vector of force applied to reopen the door force , then the folding door could not or only with difficulty be opened again by the linear drive. Because the linear drive can typically develop only tensile forces acting in the direction parallel to the guide groove or track 9. With completely outstretched door wings the vector of the respective pulling force through all three axes of rotation, ie through the first axis of rotation 6, through the second axis of rotation 7 and through the third axis of rotation 8, in any case when the third axis of rotation 8 with the door completely closed within the leading door leaf exactly perpendicular to the linear guideway. 9 located.

The Fig. 2 is a cut-out enlargement too Fig. 1 , So also shows the state of the art.

• Im Bereich der freien Außenkante der Tür wird diese, zumindest an ihrem unteren Ende, durch einen kleinen Arm V geführt, der die dritte Drehachse 8 definiert und sicherstellt, dass die dritte Drehachse 8 nicht innerhalb des Türblatts verläuft. Auf diese Art und Weise wird sichergestellt, dass die Türflügel auch bei völlig geschlossener Tür nicht derart in einer gemeinsamen Ebene zu liegen kommen, dass der Linearantrieb Schwierigkeiten hat, die Tür wieder zu öffnen.

Based on FIG. 2 It is easy to see which solution has hitherto been used in the prior art to ensure that the folding door can be easily reopened from its completely closed state:

• In the area of the free outer edge of the door, this is guided, at least at its lower end, by a small arm V which defines the third axis of rotation 8 and ensures that the third axis of rotation 8 does not extend within the door leaf. In this way, it is ensured that the door leaves do not come to lie in a common plane even when the door is completely closed, that the linear drive has difficulties to open the door again.

The arm V projects with the door fully open in the clear door opening and disturbs there, as already stated above.

The Fig. 3 shows the invention in the guide rail obliquely extending guideway 9 at completely open, recognizable completely flat, namely substantially parallel superimposed door leaves 4, 5. The door leaves 4, 5 are evidently the Fig. 3 arranged and stored so that they form a package of door wings 4, 5 in the (shown) complete opening of the door, which is positioned so that a Main surface of a door leaf 5, the clear door opening edges laterally, ie forms a lateral boundary wall for the clear door opening. The term "main area" describes the area that belongs to the largest of the wing pairs above / below, left / right and front / rear. In particular, when the door is fully open, the main surface of the walling door leaf is orthogonal to the longitudinal axis of the door. The oblique course of the guideway 9 ensures that the door leaves 4, 5 come to rest even when the door is completely closed, so that the force applied for re-opening immediately produces more than just negligible torque on the door wings 4, 5 or on the leading edge Apply door 4 and thus easily cause the folding back of the door leaves. Because of the oblique course of the guideway 9 is in any case the leading door when the door is completely closed in a plane which is oblique to the plane in which the vector of force applied to reopen the door force. Preferably, even both door leaves 4, 5 are completely closed door in one or more obliquely extending in said manner levels.

How to be good at the hand Fig. 3 recognizes the guideway 9 extends in this particularly preferred embodiment, continuously and continuously curved, so it can be said that the guideway has a crescent-shaped course. As far as it is a guideway 9 for a car door, the guideway 9 is curved convexly to the side of the car interior. As far as it concerns a guideway 9 for a shaft door, the guideway is curved convexly to the floor facing away from the shaft side.

In the embodiment shown here, the radius of curvature of the guideway 9 is constant. However, there may also be cases in which it is particularly useful to design the guideway 9 in such a way that, although it has a steady course, it has locally different radii of curvature. So it may be z. B. be useful in some applications, the guideway 9 from opening in the closing direction progressively provided only with a nearly or completely rectilinear section (radius of curvature very large or infinite) and then with a more curved portion extending.

The Fig. 4 and 5 show the inventive, in the guide rail obliquely extending guideway with opening in the door, wherein the reference numeral 11, the free, preferably formed by multiple Umfalzung leading edge of the leading door 11, which also measured measured the thickness of the door in the horizontal direction perpendicular to its main surface ,

Good to see here is that the third axis of rotation 8, unlike in the prior art, no longer defined here by a V-shaped arm outside of the door (which here consists of a metal sheet that is folded several times at their vertical edges) Plane system is maintained, but that the third axis of rotation 8 or the organ forming it preferably extends completely within the leading door 4. Thus, the third axis of rotation comes to rest behind the visible surface of the leading door when the door is fully open. Because it is - how best to compare the immediate comparison Fig. 3 and 4 sees - preferably so that the third axis of rotation 8 with fully open door between the visible surface of the leading door and the visible surface of the trailing door leaf remote large area of the lagging door leaf comes to rest.

The Fig. 6 shows a cross section through the guide rail acc. Fig. 4 , first embodiment. It recognizes the claimed special cross-sectional profile and the pedestals 13 together with the associated countersunk screws 14 and the bolt, which forms the third axis of rotation 8 and either a preferably friction-reducing part 15 carries, which is attached like a collar or runs in a part 15, from the outside into the corresponding slot of the guide rail has been used and forms the actual guideway, so has a considerable extent perpendicular to the plane of the drawing.

The Fig. 7 shows a variant (second embodiment), which seen from the outside is still designed as that of the Fig. 3 to 5 shown construction in which a part 15 is pushed collar-like on the third axis of rotation 8 forming bolt, wherein the bolt is widened on its underside, so that it can not be pulled out of the guideway nondestructive upwards. As a result, increased security is achieved, which may be important not least for shaft doors. Even if an e-wheelchair or a load transport cart rammed the shaft door frontally and locally brings about buckling / collapse, the leading door wing with its third axis of rotation is not pulled out of the guide rail and then pushed aside. Rather, the third axis of rotation remains positively mounted on the guide rail, so that the leading door, even in the depressed state opposes the Beiseitegedrückerden considerable resistance.

The Fig. 8 and 9 show the addressed in the claims variant (third embodiment) with the chuck 12, the seen from the outside substantially (except side view into open profile end into it) is still designed as that of the Fig. 3 to 5 shown construction and - with regard to the friction-reducing part 15 - as the Fig. 6 shown construction.

How to be good at the hand Fig. 9 sees, the chuck 12 is preferably located completely within the guide rail and possibly at a distance from the inner top. How to be good at the hand Fig. 9 sees, the strength of the lining in the vertical direction is greater than the strength of the seemingly acting as a guide rail component from the outside, even here by more than a factor of 2.

The lining provides an enlarged lateral contact surface and takes over the actual guiding function completely or at least substantially or predominantly. In any case, the feed supports the leadership function. Since the lining, which is usually designed as a plate, is more solid / thicker, it is considerably more resistant to wear than the component 10, which is usually made of sheet metal only, and which, viewed from the outside, appears to be the guide rail.

As well as the hand of the Fig. 9 sees, the food is held by at least one, preferably several pedestals 13 in its position. In this case, the pedestals may be part of the chuck 12 - namely, preferably a weld-on part of the chuck. The then mostly divided, multi-piece pedestals 13 and the chuck 12 are then welded together and form a single part. This facilitates the installation considerably.

It should also be noted that when using a chuck, a design is possible compared to constructions without Lining, has a significantly lower susceptibility to interference.

Because in the inner lining 12, the guideway 9 can be realized by a wider slot, as if this is realized directly in the component 10, which, seen from the outside appears as a guide rail, see. Fig. 9 ,

This means that pebbles, pieces of broken glass or cigarette butts and the like, which have found their way through the narrow longitudinal slot in the appearing from outside as a guide rail member 10, also fall through the much wider slot of the chuck 12 and thereby completely at the bottom of Deposit the guide rail - where it does no damage and in particular can not cause the guide to jam.

Due to the distance between the chuck and the inner roof surface of the appearing from the outside as a guide rail small foreign bodies that have penetrated, even laterally be pushed aside by this gap aside, even if they first appear in the narrower slot of the outside as a guide rail Part 10 caught.

• Unter "gestreckt" wird dabei ein vollständiges Gestrecktsein" verstanden oder vorzugsweise ein "im Wesentlichen Gestrecktsein".

In summary, it should be noted that the following applies optionally:

• By "stretched" is meant a complete stretched-out or preferably a "substantially stretched".

Preferably, the term "substantially stretched" is understood to mean that the door leaves are stretched to tolerance deviations when the door is completely closed. Optionally, the term is interpreted functionally: a door is essentially stretched out when in its fully open state by the force applied to your re-opening force can not or only with difficulty be postponed - because the door leaves and axes of rotation lie so that the re-opening force applied no torque or no safe, permanently trouble-free Reopening can muster sufficient torque that folds the door leaves.

An optional limit is that the term is also met if the door leaves an angle of ≤ 7.5 ° better only ≤ 5 ° to each other even with completely closed door.

LIST OF REFERENCE NUMBERS

1

Elevator door system

2

Foldable door system consisting of two door leaves 4, 5

3

not forgiven

4

leading door leaf

5

lagging door leaf

6

first axis of rotation

7

second axis of rotation

8th

third axis of rotation

9

guideway

10

Guide rail or appearing from the outside as a guide rail component (fairing), as part of the guide rail

11

Leading edge of the leading door leaf

12

Lining, part of the guide rail

13

podium

14

Screw, preferably countersunk screw

15

friction reducing part

V

Arm that dictates the third axis of rotation (prior art)

Claims (17)

Elevator car and / or elevator shaft door assembly (1) with at least one foldable door system (2) and a drive for opening and closing the door system; the door system in turn having a leading and a trailing door (4, 5), the trailing door (5) having a first axis of rotation (6) and a second axis of rotation (7) via which it is connected to the leading door (4) and wherein the leading door leaf (4) has a third axis of rotation (8) which can be guided translationally along the guide track (9) of a guide rail (10) and the said axes of rotation are realized in such a way that the door leaves (4, 5) open or close respectively Folding with their main surfaces fold or unfold and the door leaves (4, 5) are stretched in the closed position of the door system, characterized in that the guideway is inclined, so that the third axis of rotation (8) with the door open (4, 5), if they form an elevator car door, located further inside the car than with the door closed, and so that the third axis of rotation (8), when the door leaves (4, 5) a Lift shaft door form, with the door open wings further outward than when the door is closed and / or characterized in that the guideway (9) extends obliquely. Elevator car and / or hoistway door assembly (1) according to claim 1, characterized in that the guideway is continuous and continuous along a straight line; Lift car and / or elevator shaft door assembly (1) according to claim 1, characterized in that the guide track is continuous and continuously curved; Aufzugsfahrkorb- and / or elevator shaft door assembly (1) according to claim 3, characterized in that the guideway is continuous but with locally different radius of curvature; Elevator car and / or hoistway door assembly (1) according to any one of the preceding claims, characterized in that the third axis of rotation lies on a line whose imaginary extension extends within the door leaf having a certain thickness D; Aufzugsfahrkorb- and / or elevator shaft door assembly (1) according to any one of the preceding claims, characterized in that the third axis of rotation is outside of its associated door leaf and is arranged so that it is with the door leaves open between the clear door opening facing away from the main surface of the leading door and the the clear door opening facing the main surface of the trailing door leaf is; Elevator car and / or elevator shaft door assembly (1) according to one of the preceding claims, characterized in that the third axis of rotation and preferably also the bolt embodying it and the associated holding device do not project beyond the front edge (11) of the leading door leaf; Aufzugsfahrkorb- and / or elevator shaft door assembly (1) according to claim 1, characterized in that the first axis of rotation which holds the trailing door pivotally about a spatially fixed predetermined axis adjacent to the guideway; Aufzugsfahrkorb- and / or elevator shaft door assembly (1) according to any one of the preceding claims, characterized in that the door wings (4, 5) when opening or closing with their major surfaces fold or unfold and the door leaves (4, 5) in the closed position of Door system are substantially stretched; Preferably, bottom-side guide rail for a Aufzugsfahrkorb- and / or elevator shaft door assembly according to one of the preceding claims, with at least one inclined relative to the outer edges of the guide rail guide rail; Guide rail according to claim 10, characterized in that the guide rail consists of a one-piece sheet metal or extruded profile, wherein a sheet metal profile is preferred and the sheet metal profile of house is in one piece and therefore at least substantially not screwed together, glued, welded or crimped individual pieces , Guide rail according to claim 10 or 11, characterized in that the guide rail is a profile with a cross-section consisting of a plate which merges into a local U lying at both ends Guide rail according to claim 10 to 12, characterized in that the guide rail rests with its upper inner side on at least one preferably only locally formed pedestal (13), against which the guide rail preferably inserted with the help of a from above / outside through the guide rail, ideally secured with a countersunk head screw or tightened; Guide rail according to claim 10 to 13, characterized in that the pedestal is a portion of a pipe; Guide rail according to claim 14, characterized in that preferably completely within the guide rail and possibly at a distance from the inner top a chuck (12) is arranged, which at least essentially takes over or supports the actual leadership function. Guide rail according to claim 10 to 15, characterized in that the feed is held by at least one, preferably a plurality of pedestals (13) in its position, wherein the pedestals can be part (preferably welding part) of the chuck (12). Elevator with a guide rail and / or an elevator door arrangement according to one of the preceding claims.

Images