EP1498382B2 - Lintel for an elevator door - Google Patents

Abstract

A building has an elevator shaft and elevator cars to which access is provided by two sets of parallel sliding doors moving on rollers (20, 21, 26) that engage with overhead rails (10). The rail has a box section (11) containing track (12, 22) with an exposed surface (13, 14, 23, 24). The box section has one length (11a) in which the running surface is exposed towards the elevator shaft, but is screened from a point outside the shaft. The track (12, 22) and box section (11) are formed from a single piece of bent sheet metal.

Description

The present invention relates to a door striker for an elevator door.

Horizontally displaceable or movable sliding doors are known in elevator systems for the completion of the cars and shaft openings. The sliding doors are usually guided at their upper edge by means of rollers along a horizontally extending above the door opening support beam of the corresponding door device, wherein such a support bar is also referred to as door striker.

From the EP 0 709 337 B1 For example, there is known an overhead support beam for an elevator door provided with runways for the casters of door leaves of an elevator sliding door. Here, the support bar is formed in such a way that the roller tracks are integrally formed with the support beam. However, the support beam shown here is subject to the disadvantage that at least the lower portion of the support beam with the runways thereon has no cover against the door users, so that they can freely engage in the door guides and injure themselves. To avoid this danger, an additional construction to cover the corresponding runways would be required. The EP 0 709 337 B1 discloses an elevator device having the features of the preamble of patent claim 1.

From the EP 0 458 658 A1 For example, there is known a door slider for a car sliding door which can be used for two-way or multi-leaf sliding doors. The door hinge is made of an aluminum or plastic profile in L-shape with integrated guideways, which are provided for the running and counter rollers of the respective door leaves. In the production of aluminum, the profile of the door striker is achieved for example by pulling, which can be produced in the same manufacturing step various grooves for attaching the profile to the car. However, this method of manufacture is very expensive because of the very expensive and expensive die required for drawing. The predetermined shape of the die also does not allow for flexible production of the door fighter. Ultimately brings a made of aluminum door hinge due to the low melting point material problems in fire safety.

One of the internal prior art of the patent applicant belonging conventional door striker is in FIG. 8 shown in a side cross-sectional view. The door striker 100 consists essentially of a formed from a sheet box member 101 and a guide member 102, on which an upper rail 103 and a lower rail 104 are provided for the rollers of corresponding sliding doors. In the manufacture of such a known door fighter, the box element and the guide element are each manufactured as a single part, and subsequently connected in a second manufacturing step in a suitable manner, for example by welding. Accordingly, the manufacture of this door damper with respect to an exact positioning of box element and guide element before welding, to a high quality of the welded joint and the like is relatively complicated and expensive. Moreover, when welding the components can be adjusted by the heat thereby introduced a delay, with correspondingly known disadvantages.

Starting from the EP 0 709 337 B1 the invention has the object to provide a door hinge, which is inexpensive and flexible to produce and ensures excellent fire safety and reliability in the operation of a door and also forms a visible upper end of the door opening.

To solve this task, a door fighter having the features of claim 1 is proposed. In the case of the door striker according to the invention, the box part has a section which shields the running surface from the door user. It is ensured that the door user can not reach into the region of the tread in which rolls a roller of a corresponding door leaf on the tread. The said portion of the box part may be oriented substantially vertically. Furthermore, the box part has a lower region on which forms a user-facing upper end of a door opening. The box part and the at least one tread carrier and the at least one tread are bent from a single sheet, which can be profiled in a single manufacturing step of the door warmer. Additional manufacturing steps for separately connecting the box part with the at least one tread carrier are therefore not required. Such a production can be realized, for example, by profiling by means of a profiling machine, e.g. by rolling as a piece or by edges of sheet metal plates with an edging machine. In this case, a high flexibility of the production is ensured in an advantageous manner, since no complex and in their dimensions in advance fixed die needs to be held for pulling or the like. As a result, the door hinge according to the invention ensures a simple and economical production, in which also a high flexibility is possible.

The tread carrier extends in the longitudinal direction of the door fighter and extends from the substantially vertical portion in the direction of the shaft, wherein at least one tread is formed on this tread carrier. This ensures a structurally very simple and effective shielding of the tread against the door user. Further, the tread may be formed in the form of an upward-pointing 180 ° arc. This is advantageous in two respects, since in addition to a simple production of such a profile of the tread a matching in accordance with the 180 ° arc corresponding concave profiled roller of a door leaf, which is placed from above on the tread, is reliably guided without derailment.

In a further advantageous embodiment of the invention, a second running surface is formed on the tread carrier, which is in the form of a downwardly pointing 180 ° arc. In terms of manufacturing technology, it is advantageous here if the first running surface and the second running surface are arranged opposite one another at a free end of said tread carrier in such a way that they are located vertically one above the other, wherein the respective 180 ° bends are connected to one another on one side. The second tread serves in this case as a counter-guide for a further roller of the corresponding door leaf, which abuts from below on the second tread and rolls on this.

Accidental lifting of the mounted on top of the tread caster and thereby caused possible derailment of the door leaf can be hereby effectively prevented.

In an advantageous embodiment of the invention, the first tread carrier consists essentially of two superimposed sheet metal sections, which are formed by a leading away from the box part and a recirculating sheet metal section. These sheet sections are hereinafter referred to as upper and lower first tread carrier area. The case existing double wall thickness compared to a simple sheet advantageously ensures a high stability of the door striker and in particular of the tread carrier in this area, whereby the weight of a respective resting on the tread door leaf can be well received. In addition, the two superimposed tread support regions may be directly connected by a longitudinal weld or the like on the outside of the substantially vertical portion. Alternatively, the tread carrier regions may be welded together in their horizontal region, e.g. by spot welding, or bolted.

In a further advantageous embodiment of the invention, the lower portion of the box part may have a second tread carrier extending in the longitudinal direction of the door fighter and extending away from the box part in the chute direction, wherein on the second tread carrier a third tread is formed. In the same way as the first running surface, the third running surface may in this case be in the form of an upward-pointing 180 ° bend, which, as explained, is advantageous from a manufacturing point of view. Such a third running surface is in this case offset horizontally from the first running surface and serves as a running rail for a further door leaf, so that the door striker according to the invention as a whole enables a guidance of at least two door leaves moving side by side. In the case of an elevator door, these are, for example, a slow-moving door leaf and a fast-moving door leaf. To achieve a high degree of integration of the door damper according to the invention, the third running surface may be formed at a free end of the second tread carrier.

At the same time the underside of the second tread carrier serves as a visible closure of the usable door opening.

A disadvantageous lifting of an attached to the third tread roller of this tread can be advantageously avoided in that in a further advantageous embodiment of the invention, the first tread carrier has a fourth tread, which is the third tread opposite and aligned with this vertically. On the door leaf, which is guided on the third running surface, a further roller is provided, which abuts from below on the fourth tread and rolls on this. Again, the fourth tread may be advantageously formed in the form of a downward-pointing 180 ° arc to which the profiling of the adjacent thereto roller is adjusted accordingly. Instead of a roller on the fourth running surface used as a counter-guide, a sliding guide can also be used.

In an advantageous embodiment of the invention, the door striker on its upper side a horizontal covering area against falling from above material, dirt or liquid, at the free end of a downwardly facing cover plate can be attached to the open shaft side.

The door striker can be used advantageously for any elevator door actuation devices in which horizontally displaceable door leaves or sliding doors are provided.

In addition to the previously mentioned running surfaces, further running surfaces can be provided for further door leaves for the door-striker, which running surfaces can be produced in the same way as explained above. For example, this can be realized by inserting one or more folds with appropriate shaping at the desired locations of the doorstep cross section. Thus, the door hinge is not limited to the guidance of door leaves in only two adjacent planes, but it can be arranged as desired more treads that run the entire length of the door striker, these treads for a third level, a fourth level or even serve more levels.

Further advantages and embodiments of the invention will become apparent from the description and the accompanying drawings.

It is understood that the features mentioned above and those yet to be explained not only in the particular combination given, but also in other combinations or alone, without departing from the scope of the present invention.

Figur 1

zeigt einen seitlichen Querschnitt eines Türkämpfers.

Figur 2

zeigt eine perspektivische Ansicht des Türkämpfers der Figur 1.

Figur 3

zeigt den Türkämpfer der Figur 1 mit einem eingehängten Türblatt.

Figur 4

zeigt einen seitlichen Querschnitt eines Türkämpfers gemäß einer weiteren Ausführungsform.

Figur 5

zeigt eine perspektivische Ansicht des Türkämpfers der Figur 4.

Figur 6

zeigt den Türkämpfer der Figur 4 mit zwei eingehängten Türblättern.

Figur 7

zeigt einen seitlichen Querschnitt des Türkämpfers gemäß einer weiteren Ausführungsform.

Figur 8

zeigt einen bekannten Türkämpfer nach dem Stand der Technik, der in herkömmlicher Weise aus verschiedenen Einzelteilen hergestellt ist.

The invention is illustrated schematically by means of embodiments in the drawing and will be explained in more detail below with reference to the drawing.

FIG. 1

shows a side cross section of a door fighter.

FIG. 2

shows a perspective view of the door striker of FIG. 1 ,

FIG. 3

shows the doorkeeper of the FIG. 1 with a hinged door leaf.

FIG. 4

shows a side cross-section of a door striker according to another embodiment.

FIG. 5

shows a perspective view of the door striker of FIG. 4 ,

FIG. 6

shows the doorkeeper of the FIG. 4 with two hinged door leaves.

FIG. 7

shows a side cross-section of the door fighter according to another embodiment.

FIG. 8

shows a known prior art door warper, which is made in a conventional manner from various individual parts.

FIG. 1 shows a side cross-section of a door striker 10 in a first embodiment. The door striker 10 has a box part 11 which extends vertically in a main portion on the side facing away from the shaft and in this case forms a vertical portion 11 a with an upper part 15 a and a lower part 15 b. In cross-section, the door striker 10 in the area where the upper part 15a and the lower part 15b abut one another, a first tread carrier 12, which on the shaft side of the box part 11, in the FIG. 1 on the right side of the box part 11, away from the box part 11 in the direction of the shaft, that extends in the figure to the right. At a free end 12a on the shaft side of the first tread carrier 12, at least one tread, hereinafter referred to as the first tread 13, is formed. Further, at the free end 12a of the first tread carrier 12, a second tread 14 is formed which is vertically opposite to the first tread 13. In this case, the first tread 13 is directed upward and the second tread 14 points down. Both treads are each formed as a 180 ° bends and connected to each other on the shaft side. The first running surface 13 and the second running surface 14 each form rails for corresponding rollers of a door leaf, which can roll on the rails.

The first tread carrier 12 extends in the longitudinal direction of the door fighter 10. Since accordingly said two treads 13 and 14 also extend in the longitudinal direction of the door fighter, thus a guide means on the width of the door fighter is provided.

According to FIG. 3 is the vertical portion 11a of the box part 11 with the upper part 15a and the lower part 15b facing the door user and covers the upper portion of a wall opening 46, in which the door striker 10 is arranged. As a result, the running surfaces, or the contact points between the respective rollers and the running surfaces, shielded by the user, so that an injury-intensive engagement in the door leaf guide is effectively prevented.

Said wall opening 46 is arranged, for example, in a shaft or car wall 45, which in the FIG. 3 is shown in fragmentary form above. The door striker 10 has at the free end of its horizontal cover 11 b also has a fold 16 on which, for example, a cover 40 can be hung as a cover against the open shaft.

From the FIG. 1 it can be seen that the entire door striker 10 is made of a single bent sheet metal. As a result, the running surfaces are integrally formed with the box part and the tread carrier, which offers advantages in manufacturing. The shape shown here in cross section of the door damper 10 can be achieved by profiling by means of a profiling machine or the like. The door striker 10 can be made in particular by rolling as a piece of goods.

During manufacture of the door fender by rolling, the following components of the door fighter are successively formed from the metal sheet. First, an upper horizontal cover 11b of the box part 11 is formed, followed by the upper part 15a of the substantially vertical portion 11a. After that, the sheet is bent by about 90 ° to form the first tread carrier 12 consisting of the upper first tread carrier portion 12b and the lower first tread carrier portion 12c. The deformation of the sheet takes place in such a manner that at the free end 12a of the tread carrier, ie between the upper and lower first tread carrier areas, the first tread 13 and the second tread 14 are provided, wherein the sheet extends directly from the first to the second tread , Subsequently, after the lower first tread supporting portion, the sheet is again deformed by 90 °, so that the lower part 15b of the substantially vertical portion 11a is formed with the lower part 15b aligned with the upper part 15a. The lower part 15b is finally bent again by 90 ° in order to form a second tread carrier 22, at the end of which a third tread 23 is formed. An explanation of individual features of the door fighter manufactured in this form is described below with reference to FIG. 3 given.

Alternatively, the door striker can be made by edges of sheet metal plates with an edging machine. Due to the deformation of a single sheet the first tread carrier 12 of two superimposed sheet metal sections 12b and 12c. By thus doubled compared to the cross section of the box portion wall thickness increased stability is ensured for the first tread carrier 12, which is advantageous in terms of a possible increase in distance between the vertical portion 11a and the tread 13. The stability of the first tread carrier 12 can be further increased by providing, at the side of the substantially vertical portion 11a facing away from the shaft, between the part 15a and the part 15b in the in FIG FIG. 1 a longitudinal weld seam is drawn which extends continuously or intermittently over the entire width of the door striker in its longitudinal direction. Alternatively, or in addition to the aforementioned longitudinal weld in area I, the two superimposed tread carrier areas in the horizontal region between the substantially vertical portion 11a and the free end of the first tread carrier 12 are connected to each other by, for example, spot or hole welding / or bolted.

FIG. 2 shows the door striker 10 of FIG. 1 in a perspective view. How out FIG. 2 can be seen extending the first tread 13 and the second tread 14, which are formed at the free end 12a of the first tread carrier 12 at the shaft facing the inside of the box part 11, over the entire width of the door striker 10 in the longitudinal direction. A Türblattbzw. several door leaves can thus be moved horizontally over the entire width of the door fighter 10.

The door striker 10 has in its upper portion 11b further through holes 17 which are provided for a corresponding attachment of the door striker 10 on a Türumfassung or manhole or car wall 45.

FIG. 3 shows the above-explained door striker 10 in a side cross-sectional view with a door leaf 18 which is hooked to the free end 12a of the first tread carrier 12. In detail, the door leaf 18 has an upper door leaf suspension 19, on which a roller 20 is arranged. Vertically aligned with the roller 20, a counter-roller 21 is also arranged on the door leaf 18. The distance between the respective axes of the roller 20 and the counter-roller 21 is dimensioned so that it is matched to the distance of the first tread 13 of the second tread 14. The cross-sectional representation of FIG. 3 clearly shows that both rollers 20,21 are concave over their width, in order to adapt to a convex curvature of the respective tread 13, 14. By this vote of the rollers on their associated tread can be achieved in the result a punctual unwinding of the rollers and thus an exact longitudinal displacement of the door leaf. The roller 20 and the counter roller 21 comprise the free end 12a from above and below, whereby an undesirable vertical movement of the door leaf 18 and thus a "derailment" of the door leaf is excluded.

In the FIG. 3 above, a part of a wall 45 is shown, which here forms the upper edge of a wall opening 46, in which the door striker 10 is arranged as the upper end of the door opening 47. Below this wall portion 45, the upper horizontal cover 11 b of the box part 11 is arranged. In this case, the box part 11, for example, directly against the wall 45, or a gap between the box part 11 and the wall 45 (as in FIG. 3 shown) may be suitably filled by a corresponding sealing material. The wall portion 45, on which the box part rests with its upper cover, can be designed as masonry or even made of metal and / or plastic. Furthermore, in FIG. 3 below with reference numeral 47 indicates a door opening which begins below the lower end of the lower part 15b and forms the usable door opening for the door user.

The in the FIGS. 1 to 3 explained embodiment of the door damper 10 is designed so that door leaves can be moved in a plane. Thus, this embodiment is preferably suitable for a single-leaf, laterally opening sliding door or a two-leaf, centrally opening sliding door. In contrast, in FIG. 4 a further embodiment of the door damper 10 shown in a side cross-sectional view, in which different door leaves are guided in adjacent planes, so that this further embodiment is preferably suitable for a zweiblättrige laterally opening sliding door or for a four-leaf, centrally opening sliding door. This further embodiment is substantially the same as in the FIGS. 1 to 3 shown embodiment of the door damper 10, wherein identical elements are each denoted by the same reference numerals. To avoid repetition, only the relevant differences are explained below.

At the lower end of the lower portion 15 of the box part 11 (see. Fig. 4 ) extends in the direction of the shaft, a second tread carrier 22 which extends in the same manner as the first tread carrier 12 and parallel thereto in the longitudinal direction of the door striker 10, and at its free end 22a, a third tread 23 is formed. The third tread is also in the form of an upward-facing 180 ° arc. The third running surface 23 serves as a running rail for a further door leaf, which is guided laterally offset to the above-mentioned door leaf 18, which is guided on the first running surface 13 and the second running surface 14.

FIG. 4 illustrates that the distance between the vertical part 11a and the rails 13 and 14 is made larger in this embodiment than the distance between the vertical part 11a and the tread 23. Further, the lower first tread carrier portion 12c of the tread carrier 12 at its Bottom a fourth tread 24, which is the third tread 23 opposite and aligned vertically with this. With regard to a trouble-free production, eg. By means of a profiling, the fourth tread 24 is formed in the same manner as the above-mentioned other treads in the form of a 180 ° arc. In this case, the first and second tread 13, 14 relative to the third and fourth tread 23, 24 laterally offset, so that in accordance with two mutually laterally offset guide planes are defined.

In FIG. 5 is the doorstepper 10 of FIG. 4 shown in a perspective view. It can be clearly seen herein that the free end 22a of the second tread carrier 22 extends parallel to the free end 12a of the first tread carrier 12 and laterally offset therefrom across the entire width of the door fighter 10 in its longitudinal direction. As a result, a mobility of two side-by-side door leaves is made possible without them interfering with each other.

FIG. 6 FIG. 15 is a side cross-sectional view of FIG FIGS. 4 and 5 explained door damper 10 with two different door leaves, which are guided in accordance with the explained lateral offset of the two running surfaces 13, 14 relative to the two running surfaces 23, 24 in adjacent planes. In this case, another door leaf 25 is hung next to the door leaf 18 on the door panel. A mounted on the associated door leaf suspension 41 roller 26 is placed on the third tread 23.

On the door leaf suspension 41 is above the roller 26, and aligned vertically with this, a sliding member 27 is mounted, which has a groove 28 on its fourth tread 24 side facing. The groove 28 is dimensioned so that the sliding member 27 comprises the fourth tread and thereby ensures a guide of the corresponding door leaf 25. The distance between the roller 26 and the slider 28 is matched to the distance between the third tread 23 and the fourth tread 24, so that a vertical lifting of the roller 26 from the third tread and thus a derailment of the door leaf 25 is excluded. Instead of the sliding element 27, however, alternatively, a further roller may be provided which rolls on the fourth tread 24 and thus ensures a secure guidance of the door leaf 25.

In contrast to the basis of the FIGS. 1 to 3 illustrated embodiment, on the door leaf 18, which is guided on the first and second running surface 13, 14, instead of the counter-roller 21, a sliding member 29 is mounted, whose upper side, ie the second tread 14 side facing, has a concave curvature, the convex curvature of the second tread 14 is adapted.

Out FIG. 6 It can also be seen that the sliding element 27 and the sliding element 29 can be made identical, which leads to cost savings in an advantageous manner. Such a sliding element 27, 29 thus has on its one side the groove 24 adapted to the surface 28 and on the other side of a surface 14 adapted to groove, and needs only with the corresponding correct orientation on the door leaf 18 and on the door leaf 25th be mounted to form the desired counter-guide for this door leaf.

As in the rest Figur6 As can be seen, the lower part 15b of the box part 11 of the door damper 10 and the underside of the guide part 22 also shield the third running surface 23 and the fourth running surface 24 or the guide of the door leaf 25 suitably from the user, so that an injury-prone engagement in this guide region is effectively excluded. Since the door striker 10 is made entirely of a single bent sheet as explained above, and thus the lower part 15b and the guide part 22 are part of the box part 11, no additional construction is required to ensure said shielding.

Similar to the illustration in FIG. 3 is in FIG. 6 Upper left portion of a wall opening 46, against which the upper part 15a of the substantially vertical portion 11a abuts. Here, a steel support forms the wall termination over the wall opening 46. For this purpose, a door opening 47 is indicated below, which begins below the second tread carrier 22. Unlike the in FIG. 3 In the embodiment shown, the sheet is made shorter in connection with the third running surface 23, which ensures an even simpler profiling of the sheet in this area.

FIG. 7 shows the door striker in another embodiment, are provided in the three side by side door leaf guides. In this case, each door leaf guide has a main and a counter guide surface. In detail, in this case the door impactor, in addition to the first tread carrier 12 and the second tread carrier 22, also has a third tread carrier 62 on which two running surfaces are formed in the same way at a free end thereof. With further folds or the arrangement of folds at other locations of the doorstep cross section, further guide surfaces or else differently arranged guide surfaces can be created. By means of the further folding of sheet metal areas in the longitudinal direction of the door fighter with corresponding formations, further running surfaces can be formed at any desired point in the cross section of the door fighter.

The invention is not limited to the embodiments shown in the drawing and described in the description of the figures. The door striker is deployed on a lift-up unit and may be mounted above a car door opening or landing door opening.

Claims (14)

1. Elevator apparatus with a door header (10) for an elevator door in a wall opening with a box section (11) and with at least one running surface support (12, 22) with at least one running surface (13, 14, 23, 24) for a roller (20, 21, 26) of a door panel (18, 25), wherein the box section (11) has a portion (11a) facing the door user and shielding the running surface (13, 14, 23, 24) arranged on the side of the box section (11) facing the shaft from the user, the running surface support (12, 22) and the box section (11) being made in one piece from a bent sheet of metal, wherein the portion (11a) of the box section covers an upper part of the wall opening (46) facing the door user and with its lower edge forms the upper end of a door opening (47) and has an upper part (15a) and a lower part (15b), in which a first running surface support (12) with an upper first running surface support area (12b) and a lower first running surface support area (12c) connects with the upper part (15a) towards the bottom of the cross section of the door header downwards, the sheet of metal between the upper first running surface support area (12b) and the lower first running surface area (12c) forming a first running surface (13) and a second running surface (14), characterized in that the upper first running surface support area (12b) and the lower first running surface support area (12c) are connected at least partly in the middle region of the running surface support and/or adjacent to portion (11a).
2. Elevator apparatus with a door header (10) according to claim 1, in which the running surface support (12, 22) and/or the running surface (13, 14, 23, 24) is produced by folding a box section sheet metal with a suitable shaping of the folds.
3. Elevator apparatus with a door header (10) according to claim 1 or claim 2, in which the portion (11a) is substantially vertical.
4. Elevator apparatus with a door header (10) according to claim 1, in which the lower part (15b) is designed to join onto the lower first running surface area (12c), with a second running surface support (22) with a third running surface (23) being formed at the lower end of the lower part (15b).
5. Elevator apparatus with a door header (10) according to claim 1 or 4, in which the lower first running surface area (12c) has a fourth running surface.
6. Elevator apparatus with a door header (10) according to one of preceding claims in which the first and/or the second running surface support (12, 22) run in a longitudinal direction of the door header and extend from the substantially vertical portion (11a) in the direction of the shaft.
7. Elevator apparatus with a door header (10) according to claims 1 to 6, in which at least one of the running surfaces (13, 14, 23, 24) is designed in the form of a 180° curve.
8. Elevator apparatus with a door header (10) according to one of the preceding claims, in which the first running surface (13) is designed in the form of an upwards pointing 180° curve.
9. Elevator apparatus with a door header (10) according to any one of the preceding claims, in which the second running surface (14) is designed in the form of a downwards pointing 180° curve.
10. Elevator apparatus with a door header (10) according to claim 9, in which the first running surface (13) and the second running surface (14) at a free end (12a) of the first running surface support (12) are arranged vertically above one another and opposite to one another, whereby the respective 180° curves are connected together.
11. Elevator apparatus with a door header (10) according to one of claims 5 to 10, in which the third running surface (23) is designed in the form of an upwards pointing 180° curve.
12. Elevator apparatus with a door header (10) according to claim 1, in which the upper part (15a) and the lower part (15b) are connected on the outside of the portion (11a) by a longitudinal welding seam (I) or the like.
13. Elevator apparatus with a door header (10) according to one of the preceding claims which has a bent section (16) on its upper side at its free end to which a cover sheet can be attached.
14. Elevator apparatus with a door header (10) according to one of the preceding claims which is made by profiling using a profiling machine.

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