EP3925916A1 - Elevator door with a door leaf guide - Google Patents

Abstract

Shown is an elevator door (16, 18) with a door sill (26), which door sill (26) forms a step surface (40) facing the door opening (3) of the elevator door (16, 18), and a door leaf (22), which door leaf (22) between its open position and its closed position along a longitudinal alignment of the door sill (26), wherein the door leaf (22) in its closed position forms a surface (42) facing the tread surface (40) on its door leaf end facing the door sill (26). A door leaf guide groove (28) running parallel to the longitudinal alignment of the door sill (26) is formed in this surface (42) and the door sill (26) comprises a guide piece (48) arranged laterally of the step surface (40) with respect to the door opening (3), which guide piece (48) engages in the door leaf guide groove (28) for guiding the door leaf (22), and wherein a guide element (46) in the region of the door leaf end facing the door sill (26). and of the door leaf (22) arranged in the open position, the first end of the door leaf closure facing the door opening (3) is arranged, and below the tread surface (40) of the door sill (26) a sill guide bar (44, 44) aligned parallel to the longitudinal alignment of the door sill (26). ') is arranged, wherein the guide element (46) can be guided, reaching under the door sill (26), through the sill guide bar (44, 44') when the door leaf (22) is displaced, and a guide device for guiding a door leaf (22) of such an elevator door ( 16, 18) and an elevator system (2) with such an elevator door (16, 18).

Description

The invention relates to an elevator door with a door leaf and with a door sill, the door leaf being guided on the door sill.

Known elevator systems include elevator doors which are arranged on floors or an elevator car. Such elevator doors have door leaves which are suspended and driven in the region of their upper edge. The elevator doors still have door sills. The door threshold represents a step area in the area of the door opening. In addition, the door leaf is usually guided on this door threshold. For this purpose, a guide groove is arranged in the door sill, into which at least one guide element attached to the door leaf is immersed. When the door leaf opens or closes, the guide element slides within this guide groove provided for this purpose. In this way it can be ensured at any time that the door leaf maintains its preferably vertical orientation, even if, for example, a person is leaning against the door leaf.

EP 16465 76 shows an elevator door comprising a door leaf and a door sill. Guide shoes are attached to the lower edge of the door leaf. The door sill has a guide groove. The guide shoes dip into the guide groove in such a way that the door leaf is guided and supported by means of the guide groove.

WO2014005890 shows an elevator door comprising a door leaf and a door sill. The door leaf has a lower edge arranged directly on the door sill. In the area of the end of this lower edge facing the door opening, a guide shoe is fastened, which can be guided by means of a guide groove formed in the door sill during an opening or closing movement of the door leaf. In addition, the door leaf has a guide ruler on its lower edge, which can be guided by means of a tapering in the guide groove.

The problem with such an embodiment is that the guide groove is formed in the step surface of the door sill that can be walked on. On the one hand, this leads to contamination of the guide groove by elevator passengers using the elevator system. On the other hand, this tread is designed to be correspondingly uneven, which is an example when goods are rolled in in the elevator car can lead to undesirable vibrations of the goods.

The object of the invention is therefore to provide an elevator door with an improved door leaf guide and such a door threshold for this purpose.

The object is achieved by an elevator door with a door sill, which door sill forms a step surface facing the door opening of the elevator door, and a door leaf, which door leaf can be displaced between its open position and its closed position along a longitudinal alignment of the door sill, the door leaf in its closed position at the same the door sill facing the door leaf closure forms a surface facing the step surface, wherein a door leaf guide groove is formed in this surface parallel to the longitudinal alignment of the door threshold and the door sill comprises a guide piece arranged with respect to the door opening on the side of the step surface, which guide piece engages in the door leaf guide groove for guiding the door leaf, and wherein a guide element is arranged in the region of the door leaf closure facing the door sill and the door leaf arranged in the open position facing the door opening, the first end of the door leaf closure et is, and below the step surface of the door sill a parallel to the longitudinal alignment of the door sill is arranged a threshold guide ruler, the guide element reaching under the door sill through the threshold guide ruler when the door leaf is displaced.

The object is also achieved by means of an elevator system with such an elevator door.

The object is also achieved by means of a guide device for guiding a door leaf of an elevator door with a door sill, the door leaf being provided for displacement between its open position and its closed position along a longitudinal alignment of the door sill, the door sill forming a step surface which can be turned towards a door opening of the elevator door and which Step surface is provided for arrangement below a door opening that can be formed by the elevator door in its open position, and the door sill comprises a guide piece, which guide piece is provided for engaging a door leaf guide groove of the door leaf for guiding the door leaf and its arrangement with respect to the door opening on the side of the step surface, and Below the step surface of the door threshold, a threshold guide ruler aligned parallel to the longitudinal alignment of the door threshold is arranged, wherein a guide element that can be arranged on the door leaf can be guided through the threshold guide ruler when the door leaf is displaced.

In such an elevator door there are requirements that a force acting perpendicularly on a plane of the door leaf does not significantly change the position of the door leaf. Consequently, it is necessary to guide the door leaf both on its upper door leaf end and on its lower door leaf end facing the door sill. When the door leaf or the elevator door is closed, the door leaf is exposed to potential external influences from the person leaning against the door leaf, essentially over its entire surface. Such an external influence can be caused by the person, for example, by leaning against the closed elevator door or the closed door leaf. Accordingly, it is necessary to mount the door leaf at both ends of the door leaf closure facing the door sill when the elevator door is closed. Usually, the door leaf is also adequately supported on its upper door leaf end. In this way, the door leaf can be prevented from swiveling out at any time as a result of external influences caused by this person, in accordance with the requirements.

The invention is based on the knowledge that such an external influence on the door leaf by a person on the floor or in the elevator car can only take place on the area of the door leaf that is visible from the floor or from the elevator car. Accordingly, it is necessary to mount the door leaf closure facing the door threshold, on the one hand, in the area at the first end of the door leaf closure facing the door opening and, on the other hand, on the side of the step surface. Consequently, when the elevator door is opened or closed and the door leaf is displaced, the part of the door leaf that is freely accessible from the elevator car or floor can only be exposed to external influence by elevator passengers in the area of the door opening.

A shortened door threshold is realized by means of the guide piece provided for engagement in the door leaf guide groove. This means that the guide piece guides the door leaf directly adjacent to the vertical alignment of the vertical door opening width.

As a result, it is made possible that the door threshold is arranged or can be arranged essentially exclusively below the door opening. On the other hand, this guide piece enables the door leaf guide groove that can be integrated into the door leaf to be hidden or concealable for the elevator passenger.

In addition, such a guide piece provided for guidance in the door leaf guide groove of the door leaf has the advantage that the opening of the door leaf guide groove is oriented downward within the elevator system. This has the effect that the risk of contamination of the door leaf guide groove and thus the risk of the elevator door being disturbed by increased friction during operation during an opening or closing movement of the door leaf can be largely avoided.

According to the definition, the door opening is a plane parallel to the door leaf, which plane is located within, at least partially within, the volume of the door leaf in its closed position.

In a further development of the door sill, the guide element has a maximum dimension of 130 mm, which is aligned parallel to the longitudinal orientation of the door sill. It is advantageous here that a section of the door sill arranged laterally of the door opening in the longitudinal direction of the door sill can be made short. In this way, material and space can be saved.

In a further development of the door sill, the sill guide ruler and the door sill are integrally formed. In this way, a simplified assembly of the door threshold or the elevator door can be made possible.

In a further development of the door threshold, the threshold guide ruler is designed or can be designed along the entire width, preferably at least along the entire width of the door opening. This enables the door leaf to be guided or the guide element arranged on the door leaf to be guided between the closed and open positions of the door leaf.

In a further development of the door sill, the door leaf guide groove is formed or can be formed essentially along the entire width of the door leaf. Is beneficial accordingly that the guide element is suitable for guiding the door leaf between its open and closed position.

In a further development of the door threshold, the guide piece is or can be arranged to the side of the step surface at a maximum of 0.2 m with respect to the door opening. This means that the guide piece has a maximum distance of 0.2 m in the longitudinal direction of the door threshold in alignment with the step surface. The guide piece preferably directly adjoins the step surface. In this way it is possible that the door threshold only has a reduced space requirement.

A further development of the elevator system comprises a car door or a shaft door, the car door or the shaft door being formed by such an elevator door.

Usually, an elevator car that includes the car door is arranged vertically displaceably in the elevator shaft. Accordingly, the horizontal cross section of the elevator car is to be kept free of any components of the elevator installation or objects over the entire height of the elevator shaft in order to enable the elevator car to be moved. While the elevator car is moving in the elevator shaft, the car door is closed, the door sill, which is horizontally aligned below the door opening, essentially only extending below the at least one door leaf which is in its closed position. It follows from this, by designing such an elevator door as a car door, that the area of the horizontal cross section of the elevator car and thus the volume of the elevator shaft can be minimized or used more efficiently.

The volume of the elevator shaft can also be minimized or used more efficiently if the elevator door is designed as a shaft door, so that the door sill is arranged or can be arranged essentially completely below the at least one door leaf of the shaft door that is in its closed position.

Fig. 1:

eine Aufzugsanlage mit Aufzugstüren;

Fig. 2

eine Aufzugstür gemäß dem Stand der Technik;

Fig. 3

einen unteren Bereich einer Aufzugstür gemäß einer ersten Ausführungsvariante;

Fig. 4

den unteren Bereich der Aufzugstür aus Fig. 3;

Fig. 5

ein Detail einer Aufzugstür im Querschnitt gemäß einer zweiten Ausführungsvariante; und

Fig. 6

ein Detail einer Aufzugstür im Querschnitt gemäß einer dritten Ausführungsvariante.

The invention is explained in more detail below with reference to figures. Show it:

Fig. 1:

an elevator system with elevator doors;

Fig. 2

a prior art elevator door;

Fig. 3

a lower area of an elevator door according to a first Design variant;

Fig. 4

the lower part of the elevator door Fig. 3 ;

Fig. 5

a detail of an elevator door in cross section according to a second embodiment variant; and

Fig. 6

a detail of an elevator door in cross section according to a third embodiment variant.

Figure 1 shows an elevator system 2. The elevator system 2 comprises an elevator shaft 4 and an elevator car 6 that can usually be moved vertically along the elevator shaft 4 and a counterweight 8 that can be moved in the opposite direction to the elevator car 6. The elevator car 6 and the counterweight 8 are connected by means of a support element 10. The support element 10 can be guided over at least one deflection roller 12, 14, wherein one of these deflection rollers 12, 14 can be designed as a drive roller 12 of the elevator system 2 connected to a drive unit.

The elevator shaft 4 has several shaft door openings, which are usually arranged vertically one above the other in accordance with the movability of the elevator car 6. These shaft door openings allow access to the interior of the elevator shaft 4 or the elevator car 6 from floor floors 19a-d. A shaft door 18 which can be assigned to the floor 19a-d is arranged on each of these shaft door openings. The elevator car 6 comprises a car door 16. By moving the elevator car 6 in the elevator shaft 4, the car door 16 can be arranged on one of the shaft doors 18.

Figure 2 shows an elevator door 16, 18 comprising a device for guiding a door leaf 22 according to the prior art. The elevator door 16, 18 has the door leaf 22 and a door sill 26. The elevator door 16, 18 can usually comprise further door leaves 22. In the closed state of the elevator door 16, 18, the door leaf 22 covers at least part of a door opening 3. The door opening 3 can be delimited on both sides by a respective door post 31.1, 31.2. At its lower end, the door opening 3 is delimited by the horizontally extending door sill 26. The door leaf 22 is guided in the door threshold 26 in the region of a door leaf closure facing the door threshold 26.

For the purpose of guiding the door leaf 22, the door sill 26 has a Door leaf guide groove 28. A first guide shoe 35 'and a second guide shoe 35 "are attached to the door leaf end facing the door sill 26. The guide shoes 35', 35" attached to the door leaf 22 dip into the guide groove 28 of the door sill 26. In order to be able to guide both guide shoes 35 ′, 35 ″ up to the fully open state of the elevator door 16, 18 in the guide groove 28, the door sill 26 comprises a door sill extension 26 ′. In contrast to the one below the door opening 3, the door sill extension 26 ′ is used arranged door sill 26 not as a step surface for people who enter or leave the elevator car 6 through the open elevator door 16, 18.

Figure 3 shows a first exemplary embodiment of an elevator door 16, 18 comprising a door leaf 2 and a door sill 26, the door leaf 22 being shown removed from the door sill 26 in an exploded view. A door post 31.1, 31.2 can be arranged on both sides of the door opening 3. The door sill 26, which is usually aligned horizontally, is arranged below the door opening 3.

The door sill 26 has an essentially flat surface 40 facing the door opening 3, which serves as a step surface 40 for people passing through the elevator door 16, 18. In this context, a flat surface means that the step surface 40 does not have any according to Figure 2 Has guide groove 28 shown. Nevertheless, the step surface 40 can have grooves, notches or similar depressions or elevations in order, for example, to prevent a person stepping on the step surface 40 from slipping.

A guide element 46 is arranged on the door sill 26, that is, the lower, door leaf closure. The guide element 46 is also arranged on the front edge of the door leaf 22, that is, in the open position of the door leaf 22 on the side of the door leaf 22 facing the door opening 3. This means that the guide element 46 is arranged in the area of the door leaf 22 of the door opening 3, which is arranged in the open position, of the first end of the door leaf closure. A threshold guide ruler 44 for guiding, in particular for receiving, the guide element 46 is arranged below the step surface 40.

The door sill 26 comprises a guide piece 48. The guide piece 48 is arranged to the side of the step surface 40 with respect to the door opening 3. That means that Guide piece 48 in the longitudinal direction of the door sill 26 in the alignment of the step surface 40 directly adjoins the step surface 40 or is spaced a short distance from the step surface 40. This distance is preferably a maximum of 0.2 m.

The guide piece 48 is for engagement in a Figure 3 Door leaf guide groove, not shown, is provided. This door leaf guide groove is formed in the surface of the door leaf 22 facing the door sill 26 and runs essentially along the entire length of the door leaf 22.

For example, the guide piece 48 can have a brush element in the area of its engagement in the door leaf guide groove, which brush element can remove dirt or similar deposits from the door leaf guide groove.

Figure 4 shows a section AA of in Figure 3 The illustrated elevator door 16, 18 in the area of the door sill 26 including the lower door leaf closure of the door leaf 22 and the door sill 26. The surface 42 of the door leaf 22 facing the door sill 26 is visible educated. The guide piece 48 of the door sill 26, which is arranged in the immediate vicinity of the step surface 40, dips into the door leaf guide groove 28.

The guide element 46 engages under the door sill 26 and can be guided along the door sill 26 by the sill guide ruler 44. The door sill 26 and the sill guide ruler 44 are integrally formed by way of example. The guide element 46 comprises, for example, a guide shoe 45 for supporting the guide element 46 on the sleeper guide ruler 44 Figure 4 The illustrated embodiment, the guide element 46 engages behind the threshold guide ruler 44, so that when a force acting perpendicularly on the plane of the door leaf 22 through the threshold guide ruler 44, a deflection of the door leaf 22 by an interaction of the guide element 46 with the threshold guide ruler is prevented.

the Figures 5 and 6 show alternative design variants of the in Figure 4 illustrated details B of the elevator door 16, 18. The Figures 5 and 6 partially show a door sill 46 and at least one sill guide ruler 44, 44 'one Guide device for guiding a door leaf of an elevator door. The guide devices comprise a threshold guide rule 44 'which is positioned by means of a holding element 26' or can be positioned on the elevator door and is spaced from the door threshold 26.

The guide element 46 engages under the door threshold 26 and engages in the threshold guide ruler 44 'by means of a first hook end 46'. The threshold guide ruler 44 'thus exclusively prevents a deflection of the door leaf 22 in the event of a force acting perpendicularly on the plane of the door leaf 22, which acts in the direction R1. A deflection in the opposite direction R2 is prevented by the door sill 26.

In the Figure 6 The guide device shown additionally comprises a threshold guide ruler 44 formed integrally with the door sill 26. The guide element 46 comprises a second hook end 46 'for engaging behind the additional threshold guide ruler 44. The additionally formed threshold guide ruler 44 acts like that of the threshold guide ruler 44', which is not formed integrally with the door threshold 26. A second such threshold guide ruler 44 has the purpose of absorbing larger forces acting on the door leaf 22 in the direction R1.

Claims (8)

Elevator door (16, 18) with
a door sill (26), which door sill (26) forms a step surface (40) facing the door opening (3) of the elevator door (16, 18), and
a door leaf (22), which door leaf (22) can be displaced between its open position and its closed position along a longitudinal alignment of the door sill (26), the door leaf (22) in its closed position at its door leaf end facing the door sill (26) facing one of the tread surfaces ( 40) is formed facing surface (42), wherein in this surface (42) a door leaf guide groove (28) running parallel to the longitudinal direction of the door sill (26) is formed and the door sill (26) is a side of the step surface (40) with respect to the door opening (3) ) arranged guide piece (48), which guide piece (48) engages in the door leaf guide groove (28) for guiding the door leaf (22), and
a guide element (46) being arranged in the area of the door leaf closure facing the door sill (26) and the door leaf (22) arranged in the open position facing the door opening (3), and below the step surface (40) of the door sill (26) ) a threshold guide ruler (44, 44 ') aligned parallel to the longitudinal alignment of the door sill (26) is arranged, the guide element (46) reaching under the door sill (26) through the threshold guide ruler (44, 44') when the door leaf (22) is displaced is feasible. Elevator door (16, 18) according to Claim 1, the guide element (46) having a maximum dimension aligned parallel to the longitudinal direction of 130 mm. Elevator door (16, 18) according to one of the preceding claims, wherein the threshold guide ruler (44, 44 ') and the door threshold (26) are integrally formed. Elevator door (16, 18) according to one of the preceding claims, wherein the threshold guide ruler (44, 44 ') is formed along the entire width of the door opening (3). Elevator door (16, 18) according to one of the preceding claims, wherein the door leaf guide groove (28) is formed essentially along the entire width of the door leaf (22). Elevator door (16, 18) according to one of the preceding claims, wherein the guide piece (48) is arranged a maximum of 0.2 m with respect to the door opening (3) to the side of the step surface (40). Elevator installation (2) comprising a car door (16) or a shaft door (18), the car door (16) or the shaft door (18) being formed by the elevator door (16, 18) according to one of the preceding claims. Guide device for guiding a door leaf (22) of an elevator door (16, 18) with a door sill (26), the door leaf (22) being provided for displacement between its open position and its closed position along a longitudinal alignment of the door sill (26), the door sill (26) forms a step surface (40) facing a door opening (3) of the elevator door (16, 18), which step surface (40) is provided for arrangement below a door opening (3) that can be formed by the elevator door (16, 18) in its open position , and the door sill (26) comprises a guide piece (48), which guide piece (48) for engaging a door leaf guide groove (28) of the door leaf (22) for guiding the door leaf (22) and its arrangement with respect to the door opening (3) laterally of the A step surface (40) is provided, and below the step surface (40) of the door sill (26) a sill guide ruler (44, 44 ') aligned parallel to the longitudinal direction of the door sill (26) is arranged, whereby A guide element (46) that can be arranged on the door leaf (22) can be guided through the threshold guide ruler (44, 44 ') when the door leaf (22) is displaced.

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