EP3542017A2

EP3542017A2 - Door

Info

Publication number: EP3542017A2
Application number: EP17832039.6A
Authority: EP
Original assignee: Hoermann KG Brockhagen
Current assignee: Hoermann KG Brockhagen
Priority date: 2016-11-17
Filing date: 2017-10-10
Publication date: 2019-09-25
Anticipated expiration: 2037-10-10
Also published as: DE102016014202A1; PT3542017T; EA039735B1; WO2018091204A2; EP3542017B1; DE102016014202B4; WO2018091204A3; PL3542017T3; ES2947943T3; LT3542017T; EA201991191A1

Abstract

The invention relates to a door comprising a door leaf and a guide rail arrangement, in which the guide rail arrangement comprises supplementary rails which cooperate with guide means arranged in the region of an edge, which leads during an opening movement, of a door leaf member which leads during the opening movement, said supplementary rails comprising a third section which linearly extends above the second linearly extending section and approximately in parallel thereto.

Description

GATE

The invention relates to a gate with a predetermined along a guide rail arrangement path between a closed position in which it is arranged approximately in a vertical plane, and an open position in which it is preferably arranged above the head approximately in a horizontal plane, movable door leaf, the guide rail arrangement comprises two guide rails arranged in the region of the lateral edges of the door leaf running parallel to the predetermined path, each of which has a guide rail arranged successively in the door leaf movement direction and perpendicular to the predetermined path first, approximately parallel to a lateral edge of the door leaf in the closed position approximately in the direction of gravity substantially rectilinearly extending portion, a second, approximately parallel to a lateral edge of the door leaf in the open position in Substantially rectilinearly extending portion and an arcuate portion connecting the rectilinear portions with each other, whose radius of curvature (inner radius) at an inner guide surface thereof 400 mm or more, preferably 420 mm or more, more preferably 450 mm or more, in particular 500 mm or more , Such gates are used for closing building openings with a height of 3.50 m or more, as they occur in the field of industrial halls, warehouses, aircraft hangars or the like, where appropriate passage heights are needed.

The individual, hingedly interconnected Torblattglieder undergo an arcuate guide rail portion in an opening or closing movement, in which they are deflected between a vertical orientation, which they occupy in the closed position, and a generally horizontal orientation, which is taken in the open position. This allows a Torblattbewegung, without having to provide excessive space for ausschwenkende large-scale closure elements available. In the case of corresponding gates, the opening movement is usually assisted by means of a weight compensation arrangement which generally has a spring arrangement.

The spring arrangement is tensioned during the closing movement while receiving the potential energy delivered by the door leaf. The stored energy in the spring assembly is then available to support the opening movement. For this purpose, the spring arrangement is usually coupled via a traction means to the door leaf. The traction means is attached on the one hand to the lower edge of the door leaf in the closed position and can be wound on its other end in the course of the opening movement on a winding device.

For cost reasons, it has proved to be useful to use a traction device in the form of a wire rope. Such a wire rope can be wound on a winding drum arranged above the arcuate section, wherein a trouble-free winding and unwinding of the wire rope is favored, when the wire rope is guided in a helical circumferential groove during the winding process and wound to form only one winding layer ,

To assist the opening movement may further be provided an electric motor drive which is coupled to the winding drum and dimensioned taking into account the support provided by the spring arrangement so that the desired opening speed can be provided by the winding drum is rotated by the drum axis is, whereby the coupled to the lower edge of the door leaf wire is wound onto the winding drum and the door leaf is raised altogether.

In this drive concept of the electric motor drive is coupled directly to a coaxial with a winding shaft extending winding drum. This is called a shaft drive. The spring arrangement may comprise a torsion spring which revolves helically around the winding shaft, which is tensioned during a closing movement of the door leaf by rotation of the winding shaft, in the course of which the wire rope is unwound from the winding drum.

In another drive concept, the electromotive drive is coupled to a circulating traction means, which generally extends above the building opening to be closed, starting from the building opening in the direction of the building interior. The traction means may be guided in a drive rail, wherein the electromotive drive is mounted in the region of the building opening facing away from the end of the drive rail and is coupled to the endless circulating traction means that this is placed in a circulating movement. The endlessly circulating traction means is then coupled to a coupling arrangement which, on the other hand, is usually fastened pivotably about a pivot axis extending parallel to the articulation axes to the upper edge of the door leaf in the closed position. In this case, we speak of a rail-mounted drive.

Regardless of the drive concept, the spring arrangement can be embodied as a torsion spring arrangement arranged above the building opening, wherein the winding drum can be mounted coaxially to the torsion spring shaft. Corresponding drive arrangements and spring arrangements can also be used in the context of this invention. In this respect, in the context of this invention, the known drive concepts and the known designs of spring arrangements, possibly with torsion spring arrangements arranged above the building opening, can be used.

Independently of the drive concept and the design of the spring arrangement, the individual door leaf elements, as already mentioned above, pass through the arcuate section of the guide rail and there experience an acceleration caused by the so-called polygon effect. Accordingly, the articulated connection between the individual door members and the guide rail assembly with acceleration forces is applied, on the one hand lead to wear and on the other hand to a noise. The acceleration forces caused by the polygon effect depend on the one hand on the radius of curvature of the inner guide surface of the arcuate portion of the guide rail and on the other hand on the height of the door members in the direction of the lateral edges. In the case of gates for closing building openings with a height of 3.50 m or more, in order to reduce the number of door leaf members required, those door leaf members are used which have a height of 750 mm or more, which leads to correspondingly high polygon accelerations.

To reduce the forces occurring has already been proposed to increase the radius of curvature of the inner guide surface of the arcuate portion, starting from approximately 360 mm to 400 mm or more. However, this increase in the radius of curvature at the inner guide surface (inner radius) leads to an increased space requirement for the Overall construction, because above the opening to be closed a space with a radius corresponding to the height for receiving the arcuate portion must be provided. To eliminate this deficiency, it has already been proposed to mount a guide member cooperating with the guide rail arrangement in the region of the leading edge of the upper door leaf member in such a way that the distance of this guide member from an inner boundary surface of the door leaf facing the closed space in the closed position reaches the closed position increases, so as to bridge the distance between the inner boundary surface of the door leaf and an arcuate portion of the guide rails. Thereby, a vertical orientation of the door leaf in the closed position is also made possible when the upper edge of the door leaf is arranged in the closed position between the arranged at least partially in the region of the lateral edges of the building opening arcuate portions of the guide rail assembly. For this purpose, the guide member, which is usually realized as a guide roller, has been fastened to the uppermost door member in a pivotable manner with respect to a pivot axis which runs parallel to the axes of articulation and is hinged to the uppermost door member. Upon reaching the closed position of this holder has been pivoted relative to the uppermost door member such that the distance between the guide roller or the axis of rotation of the guide roller and the inner boundary surface of the door leaf has been increased.

However, as the radius of curvature of the arcuate section increases, so does the design complexity and the mechanical loading of the pivotable holder. Furthermore, as the radius of curvature increases, the distance to be bridged by the holder between the inner boundary surface of the door leaf and the guide roller attached to the upper door leaf member also increases in the door leaf closed position, resulting in instability of the overall construction.

In view of these problems in the prior art, the present invention seeks to provide a gate for closing building openings with a height of 3.50 m or more, which on the one hand requires little installation space above the building opening and on the other hand, a reduction of mechanical stress in the course an opening and closing movement allows.

According to the invention, this object is achieved by a development known gates of the type described above, which is characterized essentially in that the guide rail assembly having cooperating in the region of the leading in an opening movement of the leading edge of the opening movement Torblattglieds leading guide means complementary complementary rails, one above The second rectilinear portions have approximately parallel thereto extending third rectilinear portion.

This from the field of garage doors for closing building openings with a height of less than 3.0 m, regularly less than 2.50 m per se, for example, from EP 0 230 999 A2 known guide rail arrangement allows a closing movement of the door leaf, in which the the closing movement trailing edge of the door leaf does not have to go through the arcuate portion of the guide rail assembly, but is guided by means of the supplementary rail in the closed position, in which the uppermost Torblattglied as well as the underlying Torblattglieder are arranged approximately in a vertical plane.

In the context of this invention, it has been recognized that the supplemental rail of the guide rail assembly can be constructed and mounted so that it does not affect the door leaf movement itself or the winding process of the door leaf to the lower edge of the door leaf even for gates for building openings with a height of more than 3.50 m coupled and in the course of the opening movement to the winding drum to be wound, which is also preferably realized at gates according to the invention above the arcuate section of the guide rail arrangement, which can be realized, for example, in the form of a wire rope with a diameter of 3 mm or more. Thus, corresponding door leaves with correspondingly high (700 mm or more) Torblattgliedern along an arcuate portion having a radius of curvature in the region of the inner guide surface of more than 400 mm, in particular 500 mm or more, and correspondingly low acceleration forces at a relatively high speed can be opened and closed without requiring too much installation space above the building opening.

In the context of the invention, a trouble-free winding and unwinding of a traction means of the opening movement of the door support sheet weight compensation device is favored when the third rectilinear portion of the supplementary rail at its in the Torblattschließstellung facing the space thus closed space inner boundary surface of the door facing the front end in goes over a downwardly sloping end portion which ends at a distance in front of a plane containing the inner boundary surface of the door leaf in the closed position. Thereby, a space is provided in the Torblattschließstellung between the inner boundary surface of the door leaf and the inner boundary surface facing the front end of the downwardly sloping end portion of the supplementary rail in which the arranged between the above the arcuate portion winding drum and the lower edge of the door leaf traction means move during the winding process. Thereby, a winding operation is also possible without interference by the guide rail arrangement, when the winding drum such axial length has, that it passes through a guide rail assembly containing and extending perpendicular to the drum axis in the mounted state. A corresponding axial length is then required in the case of gates according to the invention if a cable length corresponding to the height of the door leaf has to be wound thereon and there is insufficient space for the enlargement of the drum radius. The section between the plane which contains the inner boundary surface of the door leaf in the closed position, and the end of the supplementary rail facing this plane is expediently more than 2 cm, preferably more than 5 cm. However, in view of the below-described coupling of the guide means mounted in the region of the upper edge of the uppermost door member in the closed position, this distance is preferably less than 20 cm, in particular 15 cm or less.

If the end portion of the supplementary rail terminates at a distance in front of the inner boundary surface of the door leaf in the closed position, this distance must be bridged by means of a mounted on the inner boundary surface of the door leaf in the region of the mounted in the closed position upper edge of this boundary surface holder. On the other hand, a corresponding distance between the guide element attached to the inner boundary surface of the door leaf with the aid of this holder and the supplementary rail in the open position of the door leaf would lead to a deviation of the door leaf element leading with an opening movement with respect to the trailing door leaf elements and a corresponding overbending. Such an overbending can lead to damage in the region of the adjacent edges of successive door leaf members.

For this reason, it is particularly preferred within the scope of the invention if the leading guide means, ie the guide means mounted in the closed position of the upper edge of the door leaf, comprise a guide element received in the supplementary rail, such as one extending approximately parallel to the hinge axes Rotary axis rotatably mounted guide roller, which is articulated via a relative to a pivot axis extending parallel to the pivot axes pivotally mounted on the leading in the opening movement of the gate member holder on the leading door member. With the aid of such a holder, a construction can be realized in which the axis of rotation of the guide roller in a first occupied in the closed position pivot position of the holder has a distance from the inner boundary surface of the leading gate member in the direction of the end portion of the supplementary rail, in an opening movement of the Torblatts is reduced by pivoting the holder.

Thus, the distance between the end portion of the supplementary rail facing the inner boundary surface of the door leaf in the closed position and the inner limit tion surface of the door leaf itself be bridged by means of the holder in the closed position, wherein the distance between the guide element and the boundary surface of the door leaf is reduced in the course of the opening movement, so as to avoid overbending in the region facing each other edges of successive Torblattglieder.

The distance between the axes of rotation of the guide rollers of the leading guide means and the inner boundary surface of the door leaf can be particularly easily set for the illustrated avoiding overbending in the open position on the one hand and the bridging of the distance between the front end of the end portion of the supplementary rail and the door leaf in the closed position when the holder is fastened to the leading door member via a fixing means fixable with respect to the inner boundary surface of the leading door member, the holder being displaced in the closed space, preferably in a direction perpendicular to the inner boundary surface, in the closed space to the inner boundary surface is held pivotably on the fastening means and / or the position of the fastening means with respect to the leading gate member in an inner boundary surface e thereof containing level is selectable in particular in the direction of the side door leaf margins.

In this case, the position of the fastening means with respect to the inner boundary surface of the door leaf member can be selected and locked in the selected position. For this purpose, the fastening member may be secured, for example by means of a screw on the inner boundary surface of the Torblattglieds, wherein the corresponding screws pass through slots in the fastener, which allows a displacement of the fastener with respect to the recorded in the Torblattglied screws and allow locking by the screws of your choice be attracted to the desired location.

Additionally or alternatively, the position of the pivot axis, with respect to which the holder is held pivotably on the fastening means, can be adjustable and / or locked in a direction running perpendicular to the inner boundary surface of the door leaf.

In a particularly preferred embodiment of the invention, the leading guide means two rotatable relative to the axes of articulation extending axes of rotation mounted on the holder guide rollers. As a result, the Torblattbewegung be stabilized in the region of the leading edge during the opening movement. If the guide rollers of the leading guide means are accommodated in the closed position in the downwardly sloping end portion of the supplementary rail and the pivot axis of the holder are then arranged below the axes of rotation of the guide rollers, as well as a slip-on protection can be realized. When pressure on the upper edge of the uppermost in the closed position Torblattglieds arranged between the pivot axis and the other axis of rotation of the pivot axis adjacent the guide roller forms an axis of rotation, with respect to the holder is pivoted upon pressure on the upper edge of the door panel so that the Joint axis adjacent guide roller is urged against a lower guide surface of the downwardly sloping end portion, while the other, on the pivot axis facing away from this axis of rotation arranged guide roller is pressed against the opposite side of the end portion of the supplementary rail, so that a wedging of the guide rollers within the end portion of the Supplementary rail takes place, by which an opening movement is counteracted by pressure on the upper edge of the uppermost Torblattglieds.

It has been found that this blocking effect is particularly effective when a guide plane containing the axes of rotation of the guide rollers includes an obtuse angle with the pivot axis and the pivot axis adjacent or adjacent axis of rotation containing pivot plane, said pivot plane in the closed position starting from the Swivel axis in the direction of the line of intersection of the guide plane and pivoting plane steeper increases than in the closed position preferably approximately parallel to a tangent to the end portion of the supplementary rail rising management level.

In order to avoid overbending in the open position of the door leaf, it has proven to be useful that guide plane, pivot plane and pivot axis are arranged so that the guide plane in the open position on the inner boundary surface of the leading Torblattglieds side facing the pivot axis approximately parallel to the inner Limiting surface, preferably approximately coplanar thereto, thereby, the distance between the inner boundary surface of the leading Torblattglieds and the axes of the attached guide rollers is reduced so that the leading Torblattglied is arranged in the open position approximately in the same plane as the trailing Torblattglieder, whose movement Assistance is performed in the under the supplementary rail arranged second rectilinear portion of the guide rail recorded guide roller. It must then be provided only that the distance between the axes of rotation of the attached to the trailing Torblattgliedern guide rollers and the inner boundary surface of corresponding Torblattglieder approximately the distance between the third rectilinear guide rail portion of the supplementary rail and the second guide rail section.

As already mentioned, it is particularly preferred in the case of gates according to the invention if a weight compensation device which supports the opening movement is provided with a traction means coupled to the door leaf element which is the lowest in the closed position, wherein the traction means in the course of an opening movement to a above the arcuate portion or behind an end remote from the arcuate portion of the second rectilinear portion winding device is wound up. As in the case of conventional gates, the traction means may comprise a traction cable realized, for example, as a wire rope, and the winding device may comprise a winding drum rotatable relative to a drum axis extending parallel to the articulation axes with a guide groove in the drum casing helically revolving around the drum axis for the traction cable to be wound thereon during the opening movement. If the weight compensation device has a torsion spring arranged above the curved section of the guide rail arrangement or behind an end of the second rectilinear section facing away from the curved section, the drum axis can run coaxially with the torsion spring axis. In this case, the torsion spring preferably revolves around a torsion spring shaft connected in a rotationally fixed manner to the winding drum.

A trouble-free winding and unwinding of the hauling rope can be achieved if a section of the hauling rope connecting the lowermost gate leaf member to the cable drum in the course of the opening movement at its end facing the cable drum, starting from a region of the cable drum facing the side edge of the door leaf towards a the region of the cable drum facing away from the lateral edge of the door leaf and thereby reaches a level passing through the supplementary rail and perpendicular to the joint axes and optionally passes through. The space required for this is provided in the case of gates according to the invention in that the supplementary rail ends at a distance in front of the inner boundary surface of the door leaf.

Similar to conventional gates, the cable drum according to the invention can also be coupled to a torsion spring arrangement arranged above the arcuate section and to be tensioned in the course of the closing movement, the drum axis preferably extending approximately parallel to the torsion spring axis.

As part of an optimization of the movement properties of gates according to the invention, it has been found that the accelerations and forces caused by the polygon effect only slightly decrease if the inner radius of the arcuate, in particular circular arc, section of the guide rail is more than 600 mm. In order to optimize the movement properties while reducing the space requirement, it has therefore proven to be expedient if the inner radius of the arcuate portion is less than 800 mm, preferably less than 700 mm, in particular 600 mm or less. Consequently, it is particularly preferred according to the invention if the inner radius is between 500 and 600 mm. Of course, the accelerations and forces caused by the polygon effect also depend on the height of the Torblattglieder. As part of further optimizations, it has been found that the kinematics of the Torblattbewegung while limiting the installation space is particularly satisfactory if the ratio of the inner radius of the arcuate, preferably circular arc portion of the guide rail to the height of at least one Torblattglieds, preferably all Torblattglieder, in a parallel to its (its) lateral edges extending direction more than 0.6, preferably more than 0.65, particularly preferably 0.665 or more, especially 0.68, but less than 0.8, preferably less than 0.75, particularly preferably 0, 7 or less. In this case, the height of the door member denotes the height of the visible in the assembled state in the closed position surface of a single door member. If door elements with finger protection profiles are used on the upper and lower edges, as described for example in EP 370376 A, the height of a projection brought into the closed position in a recess at the lower edge of the panel above it will increase in the area of the upper door block the determination of the goal height not included. The gate height can then also be determined so that the height between the top of the recess receiving recess at the bottom of the gate member is measured to the top of the projection.

Accordingly, the gate member height at a in the closed position between two gate members arranged gate member denotes the vertical distance between the said gate member associated hinge axes in the closed position.

Particularly good results have been obtained with door leaf heights in the range of 500 to

950 mm, in particular 600 to 900 mm, particularly preferably 700 to 800 mm and inner radii in the range between 400 and 650 mm, in particular 420 and 600 mm, particularly preferably 480 and 530 mm achieved, the range between 740 and 760 mm Torblattgliedhöhe and 500 and 520 mm inner radius has been found to be particularly advantageous.

As already explained above, it is particularly advantageous if an electric motor drive device coupled to the door leaf is provided for effecting the door leaf movement. The kinematics of gates according to the invention optimized by optimizing the inner radius of the guide rails and door leaf link heights can also be used to effect the opening and closing movement with increased speed. On the other hand, care must be taken in particular in the area of the closing movement that objects and persons are not damaged or injured by the leading edge of the door leaf. Conventional Schließkantensicherungen are too slow at high Torblattbewegungsgeschwindigkeiten to ensure adequate security. For this reason, the drive device according to the invention is expediently designed such that the door leaf closing movements is braked automatically when the leading edge during the closing movement of the door leaf falls below a height of 2.50 m, below which in particular the impact of the leading Torblattrands must be feared in the trajectory people staying in the movement path. If the door leaf movement is already braked in this area, even with a conventional closing edge safety still sufficient assurance can be effected.

In addition to or as an alternative to a braking of the door leaf movement, a light grid arrangement can also be provided for securing gates according to the invention, with which a space traversed by the door leading edge during the closing movement can be monitored and objects and / or persons entering this room can be detected. In response to a detection of objects and / or persons using the light grid arrangement, the Torblattbewegung can be slowed down or stopped.

As already explained in detail above, this invention is particularly suitable in the field of gates for closing building openings with a height of 3.50 m or more, in particular 4.0 m or more and a corresponding door leaf height. However, the invention, insofar as it relates to the provision of a space for the traveling movement of a pull rope in the course of an opening movement of the door leaf, can also be advantageously used for conventional garage doors.

A correspondingly designed according to the invention garage door has a predetermined along a guide rail arrangement path between a closed position in which it is arranged approximately in a vertical plane, and an open position in which it is preferably arranged above the head approximately in a horizontal plane, movable door leaf, the plurality of Torbiattgliedern arranged one behind the other in Torblattbewegungsrichtung successively and extending perpendicular to the predetermined path articulated axes hingedly interconnected, wherein the guide rail arrangement comprises two in the region of parallel to the predetermined path extending side edges of the door leaf arranged guide rails, each of which a first approximately parallel to a lateral edge of the door leaf in the closed position approximately in the direction of gravity substantially rectilinear portion, and a second, approximately parallel to a lateral edge of the door leaf i n the opening position substantially rectilinearly extending portion, and a rectilinear portions interconnecting arcuate portion, wherein the guide rail assembly having cooperating in the region of the opening in the leading edge of the opening movement in the leading gate member mounted leading guide means cooperating supplementary rails, one above the second straight extending portion approximately parallel thereto extending third rectilinear portion have.

The improvement in the field of garage doors is essentially characterized in that the third rectilinear portion merges at its in the Torblattschließstellung an inner boundary surface of the door leaf facing the front end in a downwardly sloping end portion which terminates at a distance from a plane that the inner Containing surface of the door leaf in the closed position and the leading guide means comprise a received in the supplementary rail guide element, such as a rotatably mounted with respect to a substantially parallel axis of rotation axes rotatably mounted guide roller pivotally connected via a relative to a pivot axis extending parallel to the pivot axis at the the opening movement ung leading door leaf member attached holder are attached to the leading door leaf member.

Also in this embodiment of the invention, the distance between the plane containing the inner boundary surface of the door leaf in the closed position and the end of the supplementary rail facing this plane is preferably more than 2 cm, in particular more than 5 cm, but usually less than 20 cm, in particular less than 15 cm.

It has already been explained above that, in the case of gates according to the invention, a slide-on safety device can be realized by means of the special attachment of the guide rollers arranged in the region of the upper edge of the upper door element via a pivotable holder. In addition or as an alternative, a push-on safety device in the case of the invention can also be achieved if the supplementary rail preferably has a recess designed as a window-like recess therein for receiving at least part of the leading guide means when the closed position is reached. The receptacle is provided in the region of the door leaf in the closed position facing end portion of the supplementary rail. The guide means received in the supplementary rail can only be lifted out of the receptacle against considerable resistance. This achieves a push-on protection. The push-on safety device can be improved if the receptacle is assigned a stop arrangement counteracting the movement of the guide means received in the receptacle in the opening direction. The stop arrangement can engage over the guide rail in the region of the receptacle and, in the closed position of the door leaf, rest on a roller axis of the guide means designed as guide rollers in the region of the upper edge of the upper door leaf element.

In some cases, the lower door leaf member protrudes in the open position into the clear wall opening. This may for example be due to the fact that the arcuate guide rungsschienenabschnitt is at least partially disposed in the region of the clear wall opening and the length of the second guide rail portion is shorter than the height of the door leaf. However, this arrangement may also be due to the fact that the traction means arrangement designed to lift the sectional door from the closed position to the open position can not completely lift the lower door leaf member into the horizontal plane. Such Zugmittelordnung consists generally of a traction means, for example in the form of a pull rope or a pull chain, which is connected at its one end to the lower edge of the lower Torblattglieds, and the other end is coupled via guide and / or pulleys to a pulling mechanism , The guide and / or deflection rollers are generally arranged at a distance from the camber, which is less than the radius of the arcuate guide rail portion. When the lower edge of the lower Torblattglieds reaches the arcuate guide rail section in the course of the opening movement, it enters a position in which the traction means coupled to the lower edge and thus also the direction of the tensile force is perpendicular to the arcuate guide rail portion. Then, the lower edge has reached its end position in the opening movement, because with the aid of the traction means and thus exerted on the lower edge tensile force no further movement of the lower edge of the Torblattglieds in the opening direction can be more effected. The lower edge of the lower Torblattglieds is arranged in this arrangement in its end position in the arcuate guide rail portion and blocks a portion of the clear wall opening. A Hininragen the door leaf in the clear wall opening can also be intended to reduce the required breakaway torque when initiating the opening movement ung, but also in this case an undesirable reduction of the clear wall opening is to be accepted.

In view of the above problems, it has proved to be particularly useful in gates according to the invention when a lower in the closed position and trailing edge of the door leaf at least on reaching the open position by a pivoting movement of this edge having lower Torblattelements in a lifting direction with respect to a in the closed position arranged above Torblattelement and with respect to the predetermined path is separately raised.

Although in the just described doors, the clear height of the wall opening can be better utilized, it has been shown in the long-term operation of these gates that they are subject to increased wear. In the case of gates according to the invention, this deficiency is preferably counteracted by a development which is essentially characterized by a limiting device which limits the pivoting movement of the lower door leaf element in the lifting direction at least along a section of the predetermined goods.

It is made use of the knowledge that an additional degree of freedom of movement is introduced by the desired in reaching the opening position pivotal movement of the lower edge of the door leaf in the lifting direction, which can interfere with other phases of the Torblattbewegung and wear-promoting. When the door is closed, the pivoting movement of the lower Torblattglieds in the lifting direction would cause a swinging the lower Torblattglieds with respect to the door leaf member arranged above it in the space lying in front of the door leaf. This swiveling can lead to a sliding contact of the lower edge of the lower Torblattglieds at the usually arranged in the region of the lateral edges side seals in the course of the opening movement, resulting in increased wear of the side seals. The additional degree of freedom can further lead to an uncontrolled pivotal movement of the lower edge of the lower door leaf member, which increases the wear of the articulated connections between the door leaf members. This can be prevented according to the invention by using the limiting device. As a result, the wear of gates according to the invention is also reduced if these goals are designed so that they allow a better use of the clear wall opening.

The limiting device used in preferred embodiments of the invention may be designed so that it is effective not only in the region of the first guide rail portion and the first part of the arcuate guide rail portion, but also where it is desired to raise the lower edge of the lower Torblattelementes that is in the region of the end region of the arcuate guide rail section adjacent to the horizontal guide rail section. In this area, it can be prevented by the inventively provided limiting device, that the lower edge of the lower Torblattglieds strikes against the deflection roller or the deflecting pinion for the traction means. This also improves the operational reliability of gates according to the invention.

In the following, the door leaf element leading in the opening movement / trailing in the closing movement is referred to as the "upper door leaf element." The door leaf element trailing during the opening movement / leading in the closing movement is referred to as the "lower door leaf element". If further door leaf elements are arranged between the upper and the lower door leaf element, these are referred to as "intermediate elements".

In a sectional door according to a preferred embodiment of the invention, the lower edge of the lower Torblattglieds when reaching the open position does not follow the predetermined path, which describes at least one of the intermediate elements in the transition from the closed position to the open position, but the lower edge of the lower Torblattglieds is on reaching the opening position can be lifted separately compared to the door leaf members arranged above. The lower door leaf member can thus be moved in the direction of the plane in which at least the intermediate elements are arranged. This level is overhead. This plane can be approximately parallel to the horizontal plane. The lower Torblattglied can be arranged completely in the open position in the plane of the intermediate elements, and thus can be completely in the lintel area. Thus, the clear wall opening is completely released. But the lower edge of the lower Torblattglieds can also block a portion of the clear wall opening.

Next can be generated by the separately liftable edge necessary for the initiation of the closing movement breakaway torque. In the open position of the door leaf of the separately raised edge of the lower Torblattglieds is further raised compared to the lower edge of a conventional overhead door. This additional potential energy is converted into additional kinetic energy during the transition to the closed position, whereby the initiation of the closing movement can be facilitated and / or made possible.

In one embodiment of the invention, the gate has a first elevating means urging the separately elevatable edge of the lower door leaf member in the transition from the open position to the closed position in the predetermined path urging. This allows a controlled movement of the door leaf in the transition from the open position to the closed position along the predetermined path can be achieved. In addition, the first biasing means may contribute to generating the breakaway torque required to initiate the closing movement as it urges the bottom edge of the door panel toward the predetermined path. The first biasing means may be arranged at the lower edge of the lower Torblattelementes. But it can also be arranged at a different location of the sectional door.

A further embodiment of the door according to the invention is characterized in that, in the closed position of the door leaf, a second pretensioning device counteracts a movement of the separately liftable edge in a direction orthogonal to the door leaf plane. The second biasing device may be the same as the first biasing device. But it can also be different from the first biasing device. The second biasing means may be disposed at the lower edge of the lower door leaf member. But it can also be arranged on another area of the sectional door leaf. By the second biasing means, a satisfactory closure of the lower portion of the clear wall opening can be achieved. In particular, the second biasing means can counteract a violent movement of the lower edge of the lower Torblattglieds in a direction orthogonal to the Torblattebene, whereby the formation of a gap between the Torblattglied and the wall is prevented. As a result, the burglar resistance can be improved in the closed space with the sectional door. In addition, a z. B. caused by wind movement of the lower Torblattglieds be counteracted in a direction perpendicular to the wall opening and an associated noise.

In this embodiment of the invention, it is not absolutely necessary that the limiting device is already effective in the closed position of the door leaf. It is sufficient if the limiting device is operative in an upper region of the vertical guide rail section and / or is effective only in a region of the arcuate guide rail section facing the vertical guide section.

As already mentioned above, a gate according to the invention can be guided by a guide rail arrangement along the predetermined path. The guide rail arrangement may have two guide rails arranged on opposite edges of the door leaf, and each guide rail may comprise at least one vertical guide rail section approximately parallel to the direction of gravity, at least one guide rail section extending above the head, preferably approximately horizontally, and at least one vertical and overhead Having extending guide rail portion interconnecting arcuate guide rail section. The overhead guide rail portion and the arcuate guide rail portion may be formed separately from each other. The overhead guide rail portion and the arcuate guide rail portion may also be integrally formed. The overhead guide rail section may be oriented approximately horizontally. But he can also include an angle α> 0 with the horizontal. Such a guide rail arrangement is particularly suitable when the space to be closed with the door leaf has a high height but a small depth. In the case of a sectional door according to the invention, at least one guide element can be arranged at the lower edge of this door leaf member on each side of the door leaf member which has a separately liftable edge on each side of a guide rail. As a result, the door leaf can be guided particularly reliably in the predetermined path. At the top of the Torblattglieds additional guide elements can be arranged. As a result, the guidance of the door leaf along the predetermined path can be further improved.

In a further embodiment of the invention, in the open position, the liftable edge of the door leaf member may be further spaced from a guide element disposed on this door leaf member in a direction perpendicular thereto than in the closed position and raised upwardly relative to the guide member. Since the guide element is arranged in the guide rail arrangement, the lower edge of the door leaf can thus be arranged above the guide rail arrangement. In a case where the guide member arranged on the lower door leaf member is disposed in the open position in the arcuate guide rail segment, the lower edge of the lower door leaf member may be raised upward in the open position opposite to the arcuate guide rail segment.

A further embodiment of a sectional door according to the invention is characterized in that the separately liftable door leaf member is connected to the guide element via a lever arrangement enabling a change in the distance between at least one guide element arranged on this door leaf element and the door leaf element. The hinge assembly allows the bottom edge of the door panel to be raised and the edge to be returned to a position where the distance between the guide element and the door leaf member is minimal.

The lever arrangement may have a receptacle arranged on the door leaf member. A pivot lever of the lever assembly may be pivotally connected to the receptacle. The pivot lever can be connected to a guide element arranged with respect to a pivot axis on this door leaf element.

The receptacle may have a receiving base extending essentially parallel to the plane of the door leaf member. The receiving base may be connected to the door leaf member. This connection can be made for example via a screw connection. The receptacle may further include first and second receiving sidewalls extending orthogonally upwardly from the receptacle base and in the closed position in FIG in the direction of gravity. The receptacle may be formed, for example, of metal. The receiving side walls and the receiving base may be integrally formed.

The recording can record the pivot lever. The pivot lever may be attached to the receiving side walls. The attachment can take place via a shaft extending approximately perpendicular to and between the receiving side walls. The shaft may be mounted in recesses or openings in the receiving side walls. The shaft can be rotatably mounted.

The pivoted lever pivotably coupled to the receptacle via the shaft may extend from the shaft to the lower edge of the door leaf member. The pivot lever may have a pivot lever base and pivot lever side walls. The swing lever base may abut against the receiving base in a state where the swing lever is completely received in the receptacle. The pivot lever base may then extend parallel to the receiving base. The pivot lever side walls may extend orthogonally away from the pivot lever base and extend in a direction connecting the top and bottom edges of the door leaf member.

The pivot lever may be connected to the shaft in a region of a first end via the pivot lever side walls. The first end of the pivot lever opposite the second end of the pivot lever may be connected to a guide element. In a case where the guide member is a caster, the axis of the caster may be disposed in a tubular portion disposed at the second end of the swing lever.

The function of the lever arrangement is as follows: In a guide position, the receiving base and the pivot lever base abut each other. The guide element is then arranged adjacent to the lower edge of the lower Torblattglieds. The lower edge of the lower door leaf element is then guided in the path predetermined by the guide rails. During the transition of the door leaf from the closed position to the open position, the pivot lever base can be moved by pivoting the pivot lever relative to the receptacle in a pivot position, as far as this is permitted by the limiting device. In the pivotal position, the lower edge of the lower Torblattglieds is moved away from the guide element. The lower edge of the lower Torblattglieds is then spaced from the guide element. Due to the configuration of the receptacle and the pivot lever, the lower edge of the door leaf with respect to the guide member can be raised only upwards. One Lowering downwards is not possible. If the door leaf is moved back from the open position to the closed position, the lower edge of the lower door leaf member is returned from the pivot position to the guide position by pivoting the pivot lever relative to the receptacle. The lower edge of the lower Torblattglieds can then be returned along the predetermined path in the closed position.

In a further embodiment of the invention, the first and / or second biasing means may cooperatively urge the separately elevatable edge of the door leaf member into the predetermined path upon movement into the closed position and / or in the closed position urge it into a fully occlusive wall opening position , If the door leaf member having the separate liftable edge is urged into the predetermined path by an interaction of the first pretensioning device and the lever arrangement during the movement into the closed position, then the door leaf can be moved particularly reliably from the open position into the closed position. Furthermore, this interaction of the first pretensioning device with the lever arrangement can contribute to the generation of the breakaway torque necessary for initiating the closing movement. Further, a noise that results from the fact that the lower edge of the door leaf is movable approximately orthogonal to the predetermined path can be suppressed. By the interaction of the second biasing member with the lever assembly, the lower door leaf member can be urged into a position completely closing the wall opening position in the closed position. As a result, a particularly secure closure of the closed space with the door leaf can be achieved. Furthermore, a noise development can be prevented by a bottom edge of the door leaf member which is moved back and forth, for example, by air pressure orthogonal to the vertical plane. This can also be achieved if the limiting device is not effective in the closed position. The first biasing means and the second biasing means may be identical or different. This can also be achieved if the limiting device is not effective in the closed position.

In one embodiment of the invention, the first and / or the second biasing means may comprise a spring element. The first and / or second biasing means may comprise a torsion spring. The lower edge of the lower Torblattglieds can then be urged by a spring force in the movement into the closed position in the predetermined path. In the closed position, the lower edge of the door leaf can be urged by the spring force into a position completely closing the wall opening. The torsion spring can be arranged on the shaft of the joint arrangement. The torsion spring may have three legs. The first and third legs may be cylindrical at the opposite ends be formed trained torsion spring. The second leg may be formed approximately midway between the first and second legs. The first and the third leg can rest on the pivot lever. The legs can rest against the pivot lever base. The second leg may rest against the receptacle. In this case, the second leg rest against the receiving base. The second leg may be U-shaped. By such an arrangement, the lower edge of the lower door leaf member can be particularly reliably forced in the transition from the open position to the closed position in the predetermined path and are urged in the closed position in a wall opening completely occlusive position.

In a further embodiment of the invention, a pulling means lifting the door leaf from the closed position into the open position can be connected at one end to the lower edge of the door leaf and coupled at its other end to a counterbalancing device, and the traction means can counteract the first pretensioning device.

The traction means may be, for example, a chain or a rope. The traction means may extend in the closed position of the door leaf, starting from the lower edge of the door leaf in a vertical upward direction. If the weight compensation device, such as a torsion spring arrangement, in the region of the arcuate guide rail portion facing away from the end of the horizontal guide rail portion is arranged, the traction means can be deflected via a deflecting element mounted in the region of the fall and extending from the deflection approximately in the horizontal direction or parallel to the extending over the head guide rail section to the weight compensation device. The deflecting element may be a chain sprocket and the traction means may be formed as a chain in a first region facing the lower edge of the door leaf. In a second area, which faces the counterweight unit, the traction means may be formed as a rope. The traction means may be formed of metal.

In the case of gates according to the invention, it is possible to arrange the deflecting element designed, for example, as chain sprocket in the vicinity of the camber and to fasten, for example, to the frame holding the vertical guide segment and / or the wall having or to the wall opening. This allows a stable attachment of the deflecting in the already existing components or the wall. This arrangement is possible in gates according to preferred embodiments of the invention without affecting the clearance height, when the lower edge of the lower Torblattglieds is separately raised and the The pivoting movement in the lifting direction is not impaired by the guide roller mounted in the region of the lower edge, as is the case with conventional gates. In these doors, the pulling force of the traction means, as explained above, acts perpendicular to the arcuate guide rail segment when the deflecting element is arranged in the vicinity of the wall opening. A continuation of the opening movement is then no longer possible.

The weight compensation device is used to facilitate the opening movement by urging the door leaf, at least in the closed position to the open position. The weight balancing device can also prevent an uncontrolled closing movement, which takes into account relevant safety regulations. The weight compensation device may comprise a mechanical spring, for example a tension spring or a torsion spring, which acts on the door leaf via the traction means. The weight balancing device is usually tensioned during the closing movement of the door leaf under the action of gravity with the help of the weight of the door leaf. With the spring tension thus generated, the opening movement is supported.

The following describes the movement of the door leaf of a sectional door from the closed position to the open position, wherein the door leaf is lifted by the traction means. The traction means engages the lower edge of the door leaf in order not to excessively burden the articulated connections of the Torblattglieder in the course of the opening movement. On the contrary, it is possible with this arrangement that the individual door members are supported on one another during the opening or closing movement and are held in total by the traction means fastened to the lower edge of the door leaf. The traction means is guided over deflection rollers, that during the entire opening movement of the door leaf, a force acts on the lower edge of the lower Torblattglieds, which is directed approximately parallel to the direction of gravity upwards. In the closed position of the door leaf, the lower edge of the lower Torblattglieds is urged by an interaction of the hinge assembly and the second biasing member (which may be identical to the first biasing means) in a wall opening completely closing position. The lower edge of the lower Torblattglieds is disposed adjacent to the guide element arranged on this Torblattglied. The guide element may be formed, for example, as a roller. The guide element is arranged in the guide rail assembly and is guided by this.

Now the gate leaf member is lifted by the traction means upwards. The arranged on the lower edge of the lower Torblattglieds guide element then moves due to the positive guidance by the vertical guide rail segment in approximately vertical direction up. Due to the interaction of the first biasing element, such as a torsion spring, with the hinge assembly, the lower edge of the lower door leaf member also follows the path of the guide member. The lower edge of the lower Torblattglieds and the guide element together follow this vertical path until the guide element enters the arcuate guide rail segment. Due to the positive guidance through the arcuate guide rail segment, the guide element continues to follow the arcuate path of the guide rail arrangement. However, on the lower edge of the lower Torblattglieds further affects the tensile force of the traction device approximately parallel to the direction of gravity upwards. Since the hinge assembly allows pivoting of the lower edge of the lower door leaf member with respect to the guide member upwards, the lower edge of the lower door leaf member is thus raised upwardly as and / or as far as permitted by the restriction means. The lower edge of the lower Torblattglieds is then spaced from the guide member in the vertical direction. The clear wall opening is thereby further released. The upper Torblattglied and the intermediate elements are arranged in this state in a predetermined by the overhead guide rail segment overhead position.

This opening movement can take place under the assistance of the prestressed weight compensation device. The traction means can counteract the first biasing device when lifting the door leaf, possibly supported by the weight balancing device. The biasing means can be biased by the tensile force of the traction means. This biasing force can contribute to the generation of the breakaway element necessary for initiating the closing movement, whereby the transition of the door leaf from the opening to the closed position is enabled and / or supported.

In addition to the overhead guide rail segment, a second overhead guide rail segment may be disposed above the first overhead guide rail segment. This second overhead guide rail segment can accommodate at least the upper edge of the upper door leaf member. As a result, the lintel height can be further reduced. While in the open position of the door leaf, at least the intermediate elements lie approximately in a plane, the lower Torblattglied is tilted relative to this plane. The lower Torblattglied includes with the plane of the intermediate elements an acute angle ß. In a conventional sectional door without a separately raised edge, the lower door leaf member lies in a plane which is spanned by the upper edge of the lower Torblattglieds and arranged in the arcuate guide rail segment guide element. In a sectional door according to the invention with a separately liftable edge, the lower edge of the door leaf is opposite the guide element moved up. Thereby, the acute angle ß, which includes the lower door leaf member with the plane of the intermediate elements is reduced. The clear wall opening is thus further released.

The limiting device used in preferred embodiments of the invention can be designed to be particularly compact if it has delimiting elements guided by the door leaf in the course of the door leaf movement. In this case, it can be dispensed with the provision of a limiting device extending over the entire door leaf height in the region of the wall opening.

In this context, it has proved to be particularly useful when the traction means, such as a roller chain is coupled via a respect to a parallel to the hinge axes pivot axis pivotally mounted on the lower edge coupling device to the lower edge of the door leaf, wherein the pivot axis in the closed position is preferably arranged below the lever axis with respect to which the pivot lever can be pivoted with the guide roller with respect to the lower edge of the lower Torblattglieds. By the pivotable attachment of the coupling device, it is possible that it is pivoted under the pulling action of the traction device in a lifting direction opposite direction with respect to the lower Torblattglied when reaching the open position, so that the articulation point of the traction means on the coupling device with respect to the lower edge of the lower Torblattglieds is pivoted upwards when reaching the open position. It is then both the lower edge of the lower Torblattglieds. In the closed position in the overlying Torblattglied pivoted in the lifting direction upwards, as well as the coupling device pivoted in a direction opposite to the lifting direction upwards. At this point it should be noted that the pivot lever is pivoted in a pivoting movement of the lower edge of the lower Torblattglieds with respect to the door in the closed position Torblattglieds in the lifting direction with respect to the lever axis in a direction opposite to the lifting direction or an opposite direction of rotation.

Taking advantage of this kinematics, the limiting device can be made particularly compact, if it has one of the coupling device associated and with this respect. The pivot axis pivotable limiting element and the lever assembly associated and with this respect. The lever axis pivotable limiting element. Due to the distance between the lever axis and pivot axis on the one hand and the arrangement of the limiting elements on the other hand, the area in which the limiting device is effective, can be adjusted individually. In the above-mentioned compact design of the limiting device, one of the limiting elements may have a limiting link that at least partially revolves the lever axis and / or the pivot axis, the other limiting element being designed as a stop element which comes into abutment against the limiting slots during a pivoting movement of the lower gate leaf member.

The boundary slot may have a transversely extending from about a perpendicular to the hinge axis holder of the coupling device, in particular approximately perpendicular thereto extending collar, while the stop element may be attached to the pivot lever and during the pivotal movement of the lower Torblattglieds in the lifting direction or in a Pivoting movement of the pivot lever with respect to the lever axis in a direction opposite to the lifting direction comes into abutment with the pivot axis facing the boundary surface of the limiting slot.

The limiting device serves primarily to limit an uncontrolled and undesired movement of the lower edge of the lower door leaf member with respect to the door leaf element arranged above it in the closed position or with respect to the guide rail arrangement before reaching the open position. But it should also allow the desired pivotal movement of the lower Torblattrandes in the lifting direction when reaching the open position. For this reason, it is preferably provided according to the invention that the stop element is released by the limiting slot at the latest when the opening position is reached in the course of the opening movement of the door leaf. Accordingly, the limiting slot circumscribes the pivot axis or the lever axis only partially, so that the pivoting movement of the limiting link leads in the course of the opening movement to a release of the stop element. In this case, the radial distance of the Begrenzungs link from the pivot axis in a lifting direction opposite the circumferential direction of the pivoting backdrop with respect to. The pivot axis increase. This can also be achieved that the pivoting gate forms an inlet funnel, which facilitates the correct position abutment of the stop element on the pivoting gate in the course of the closing movement of the door leaf.

Once the stop element is released from the pivoting gate, the lower edge of the lower Torblattglieds can be pivoted freely without further action in the lifting direction upwards. This induces the risk that the lower edge of the lower Torblattglieds strikes in the course of the pivoting movement in the lifting direction of the optionally arranged in the lintel area of the wall opening deflection element for the traction means. This undesirable stop It can be prevented if the limiting device has a fixed guide surface which cooperates with a limiting element mounted on the lower edge of the door leaf when the opening position is reached, such as a guide roller rotatable about a rotation axis extending parallel to the articulation axes. This fixed guide surface may be attached to the wall opening having the wall and extend obliquely upward in the upper region of the wall opening, in particular in the region of the arcuate guide rail portion.

As already mentioned above, conventional gates can have a thrust device attached to the end of the horizontal or overhead guide rail segment which faces away from the curved guide rail segment and, in the open position, adjoins the edge of the door leaf which advances during an opening movement. In the context of the invention, such a push device can also be utilized to urge the guide element mounted on the lower edge of the door leaf in the open position against the guide surface.

As already explained above, in order to support the Torblattbewegung usually an electromotive drive means is used, which can be coupled to the winding drum (in the arrangement of the winding drum above the arcuate portion) or to the deflection (in the arrangement of the winding drum behind the second guide rail portion). Particularly in the case of large and heavy doors, in order to obtain the torque required for the door leaf movement, it is necessary to use a reduction gear, with which the speed of the motor shaft is reduced and at the same time the available torque is increased. Usually, worm gears are used for this purpose. Such worm gears have the further advantage that they act self-braking. Therefore, in such gates can regularly be dispensed with the use of additional security measures to hedge deficiencies in the counterbalancing device. If the weight compensation device is damaged, for example by breaking the spring elements, this leads to a reduced support of the opening movement by the electromotive drive arrangement and thus also to an increased power consumption of the electric motor. This is detected by the engine control. This can then cause an automatic shutdown of the engine.

In the recent past, sectional doors, in addition to the requirements for a safe space closure, are also subject to increased requirements with regard to the thermal properties. It's supposed to cause excessive heat loss in the area the door leaf closed wall opening can be avoided. In view of these requirements, heat-insulating materials can be used both in the area of the door leaf and in the area of a door frame.

When operating known sectional doors, it has been shown that in many cases, a high wear of the gear assembly occurs. Furthermore, the requirements for reducing the heat loss across the doorway to be closed building opening often can not be satisfactorily met.

In view of these problems in the prior art, the object of the invention is to provide an electric motor-driven sectional door, with which a long-term operation without impairment of thermal properties can be ensured.

In the context of this invention, these problems can also be solved if the ratio of the radius of curvature of the arcuate portion on an inner guide surface thereof to the height of at least one door member, in particular to the height of all the door members, along a direction perpendicular to the joint axes and approximately parallel to the predetermined path extending direction 0.6 or more, preferably 0.65 or more, more preferably about 0.665 or more, in particular about 0.68.

It is made use of the knowledge that the observed increased wear of the gear assembly of drive devices for sectional doors in many cases can be attributed to the fact that the breakage of individual springs of the counterbalancing device is not recognized. An unrecognized spring break provides not least in view of the properties of the usually self-braking worm gear with a pitch angle of 2.5 ° or less not for an immediate door crash, but for a high wear of the gearbox when the gates continue to operate without detecting the breakage of individual spring elements become. The goals are then no longer optimally balanced. This may cause the worm gear to wear, the teeth to become thinner and possibly break during operation and / or may no longer be able to accommodate the next spring break.

This is the result of poor detection by the engine control of any defects in the counterbalancing device. The motor control system must be designed so that it detects the forces and force changes occurring during normal door operation, or fluctuations in the power consumption during normal operation of the door Electric motor, tolerated. The forces occurring during normal operation and the power consumption of the electric motor co-determining forces are determined inter alia by the so-called polygon acceleration. Regardless of the drive concept and the design of the spring arrangement, the individual door leaf members pass through the arcuate section of the guide rail and there experience an acceleration caused by the so-called polygon effect. This acceleration affects the power consumption of the electric motor. However, the fluctuations in the power consumption caused in this way must not lead to any influence on the door drive. Correspondingly large, the tolerances must be designed in the engine control. The acceleration forces caused by the polygon effect depend on the one hand on the radius of curvature of the inner guide surface of the arcuate portion of the guide rail and on the other hand on the height of the door members in the direction of the lateral edges.

In the context of the invention it was recognized that a motor control, with the breakage of a comparatively small element of the spring assembly as part of the weight balancing device, for. b. a single spring, with a torque of only 50 Nm, if the ratio of the radius of curvature of the arcuate portion on an inner guide surface thereof, also referred to as polygon ratio in the context of this description, to the height of at least one door member along a plane perpendicular to the joint axes and approximately parallel to the predetermined path extending direction 0.6 or more, in particular 0.65 or more. This allows the early detection of deficiencies of the weight balancing device and a responsive shutdown of the drive device, before it comes to excessive wear of the gear assembly by the occurring at break individual spring elements increased forces. Overall, such a long-term operation of gates according to the invention can be ensured without the risk of excessive wear.

By using gates according to the invention, the thermal properties can also be improved by increasing the door running speed of sectional doors. Reducing the polygon accelerations at a given door speed also allows the door speed to be increased without unduly increasing the polygon accelerations and the forces caused thereby. As a result, the heat losses occurring in the area of the gates can be reduced. This aspect of the invention is based on the recognition that the in many cases only moderate thermal properties in the region of sectional doors are not primarily due to deficiencies in the thermal insulation of the gates, but that the polygon accelerations limit the door speeds. zen, so that it takes so much time to open and close the gates that it comes to an excessively high heat loss. By preferred within the scope of the invention adjustment of the polygon ratio can be achieved with constant accuracy of the engine control acceleration of the Torblattbewegung. As a result, the thermal properties of gates according to the invention can be improved.

However, it has been shown that an acceleration of the Torblattbewegung by increasing the engine speed in turn can lead to premature wear of the gear assembly in many cases. According to a further aspect of the invention, the independent inventive content, this deficiency is addressed by the fact that a gear assembly is used, which is coupled to the electric motor self-locking or self-braking and reducing worm gear, in particular with a pitch angle of about 2.5 ° or less, having a gear coupled to the output shaft of the worm gear, such as a chain transmission, is connected downstream. In this case, the gear ratio, ie the ratio in which the output speed of the worm gear is increased by the chain gear to obtain a high speed in the region of the cable drum or the deflection, 1: 1, 5 or more, especially 1: 2 or more, especially preferably 1: 3.5 or more.

Accordingly, according to this aspect of the invention, therefore, a step-down transmission is arranged between the electric motor and the cable drum or the deflection device of the weight-compensating arrangement, and then a transmission is provided. The reduction worm gear reduces engine speed while increasing torque. The reduction worm gear has self-locking or self-braking properties, which allow a waiver of separate braking or securing devices in the event of damage to the counterbalancing device. The stepping worm gear is followed by a translating gear, with the output speed of the worm gear is in turn increased, so as to obtain a faster door speed.

In the context of the invention, it was recognized that the observed deficiencies in the area of the worm gear are also due to the fact that an increased engine speed leads to an increased sliding speed in the center circle of the worm and worm wheel to obtain a faster gate run, which leads to wear as a function of the material pairing can lead, because a lubricating film break can occur. Of course, the speed at which the lubricant breaks off depends on the temperature used oil, the center distance between the worm wheel and the worm and, overall, the gear ratio. In any case, these deficiencies can be eliminated if the worm gear is followed by a translating gear, such as a chain gear, which does not have comparable wear characteristics, so as to achieve the desired speed in the area of the weight balancer or cable drum and thus the desired opening and closing speed to reach.

This invention also allows the use of the same drive units, consisting of electric motor and worm gear for driving large and heavy gates at high speed and of small and light gates also high speed. For large and heavy gates can be used to increase the speed and correspondingly large cable drums, because with large gates usually enough installation space is available. Then it may be possible to dispense with the use of a translating chain transmission. It is possible to use known two-stage gear arrangements with a reducing worm gear and, if appropriate, a likewise geared chain transmission, as described, for example, in WO 2012/089358 A1. The same drive unit can also be used in conjunction with small and lightweight gates, where usually only little installation space is available and therefore only small drums are used. For small and light gates with small rope drums, the desired opening and closing speed can be achieved by a corresponding translating gear or chain drive.

If, with a large gate, a speed at the output of the gear assembly of only 80 revolutions / minute is sufficient and can be achieved without excessive wear of the worm gear, with the aid of a translating chain gear with a gear ratio of 1: 2 or more, a speed of 160 revolutions / Minute and a correspondingly high door leaf speed can be achieved.

As already mentioned, gear arrangements with a reducing worm gear and a downstream chain transmission are described, for example, in WO 2012/089358 A1. In this document exclusively geared chain transmission are used, the reduction ratio of the chain transmission can be adjusted depending on the door leaf. According to this document, the drive gear ratio is selected as a function of the respective door drive, ie the size of the cable drum, so that the path of the door leaf, at least in the region of the closing end position per revolution of the electric motor is substantially constant at different gate operations. An influence on the thermal properties by the door speed is addressed in this document as little as the optimization of the thermal properties while ensuring satisfactory wear resistance of the drive unit by using a translating gear following the self-braking worm gear.

As explained above, within the scope of the invention, a polygon ratio of 0.6 or more, preferably 0.65 or more, more preferably about 0.665, or both, with a view to optimizing the thermal properties of a door as well as the desired increased wear resistance more, in particular 0.68 chosen. In view of the fact that the individual door members should have a height of 400 mm or more, in particular at particularly high gates with a height of 3.50 m or more, so as to keep the number of required gate members within tolerable limits, it has in the context of the invention has proved expedient if the polygon ratio for at least one gate member is 0.8 or less, preferably 0.75 or less, more preferably 0.7 or less. As a result, the inner radius of the arcuate portion can still be kept within tolerable limits, which allows adaptation to the usual installation conditions, without the arch protrudes too far into the door opening.

As part of an optimization of the polygon ratio has been shown that above a polygon ratio of about 0.68 only a slight reduction of the polygon accelerations is observed. For this reason, the choice of a polygon ratio in the range between 0.6 and 0.7, in particular in the range of about 0.68 is particularly preferred. For gates with a gate height of about 750 mm, an inner radius of about 510 mm has been found to be preferred.

As already mentioned above, it has proved to be expedient in the context of the invention if the weight compensation device has at least one spring arrangement coupled via a traction means to the lowest door member in the closed position, wherein the traction means can be wound on a winding drum arranged preferably above the arcuate portion of the guide rail arrangement is.

In the just described embodiments of the invention, the drive device may also be coupled to the winding drum or a deflection device for the traction means, such as a chain sprocket. Within the scope of the invention, in the sense of an optimization of the polygon ratio with the simultaneous use of door leaf members with a tion of the required number of Torblattglieder required minimum height preferably arcuate portions having a radius of curvature at an inner boundary surface thereof (inner radius) of 400 mm or more, preferably 420 mm or more, more preferably 450 mm or more, in particular 600 mm or more used. With regard to the usually available installation space above the space to be closed with the door leaf, it has proven to be expedient if the inner radius is 800 mm or less, especially 760 mm or less. The height of at least one door leaf member may be 550 to 950 mm, in particular 600 to 900 mm, particularly preferably 700 to 800 mm.

In view of the above-mentioned thermal properties or in view of avoiding excessive heat loss in the area to be closed with the door leaf opening, it is particularly preferred in the invention if the electric motor and the gear assembly, possibly cooperating with the cable drum and the deflecting pinion, for generating an opening or closing speed of 0.6 m / sec or more, in particular 1 m / sec or more are designed.

Although with gates according to the invention an increased opening and closing speed can be achieved, it must be ensured in particular during the closing movement that objects and persons are not damaged or injured by the leading edge of the door leaf. Conventional Schließkantensicherungen are too slow at high Torblattbewegungsgeschwindigkeiten to ensure adequate security. For this reason, the motor control of the invention gates is expediently designed so that the Torblattschließbewegung is automatically decelerated when the leading edge during the closing movement of the door leaf falls below a height of 2.50 m, below the particular impingement of the leading Torblattrands on in the trajectory people to be feared. If the door leaf movement is already decelerated in this area, sufficient securing can also be achieved with a conventional closing edge safety device. In addition to or as an alternative to a braking of the door leaf movement, a light grid arrangement can also be provided for securing gates according to the invention, with which a space passing through the gate leaf edge advancing during the closing movement can be monitored and objects and / or persons entering this space can be detected. In response to a detection of objects and / or persons using the light grid arrangement, the Torblattbewegung can be slowed down or stopped. According to the invention, it can be provided that translating chain drives are used. In combination with the reducing worm gear this can not only lead to an increased door running speed, but also to an increased acceleration of the door leaf. Increased acceleration forces lead to increased wear. For this reason, it can be provided that the motor control for starting and braking the door leaf from a rest position or from an operating position in which the door leaf is moved at maximum speed, according to a predetermined acceleration profile is operable. This controlled acceleration and deceleration is also referred to as "S-grounding." By suitable motor control, such excessive wear in the area of the gearbox and the gate can be avoided. [Bei Bei] In all embodiments of the invention, a frequency-controlled electric motor allowing complex engine control can be used.

In the following, the invention will be explained with reference to the drawing, to which reference is expressly made with regard to all details essential to the invention and details of which there is no further details. In the drawing shows:

1 is a detailed view of a gate according to the invention in the closed position,

2 is a detailed view of the door of FIG. 1 in the open position,

Fig. 3 is a sectional view of a gate according to the invention in a drum axis of a winding drum for a load rope contained horizontal section plane

4 is an illustration for illustrating the kinematics of conventional gates,

Fig. 5 is an illustration for illustrating the kinematics of the invention gates

6 is a comparative illustration based on FIGS. 3 and 4.

7 shows a limiting device of a door according to the invention in the closed position, and

Fig. 8, the limiting device of FIG. 7 in the open position. In Fig. 1, the upper edge of an uppermost in the closed position Torblattglieds 10 is shown in the closed position. The gate comprises a track rail with an arcuate track section 100 and two rectilinear sections, not shown in FIG. 1, one of which extends approximately in the direction of gravity and parallel to the side Torblattrand in the closed position and the other approximately in the horizontal direction and parallel to the side Torblattrand in the open position. The gate further includes a supplemental rail 200 having a front end portion 210 sloping downwardly toward the door leaf when in the closed position and located above the arcuate portion 100 of the track rail.

In the embodiment of the invention shown in the drawing, the inner guide surface 120 of the arcuate portion 100 serving to guide rollers not shown in the figure, located below the door leaf member 10, has a radius of curvature of 510 mm. The rollers, not shown in the drawing, attached to lower Torblattgliedern rollers roll on the inner guide surface 120 of the arcuate portion. At the upper edge of the door leaf member 10, which is the uppermost door leaf member of the door leaf in the closed position, rollers 60 and 62 are mounted, which are guided in the supplementary track rail 200. For attachment of the rollers 60 and 62, a holder 50 is provided which is articulated relative to a pivot axis 24 pivotally mounted on a mounting bracket 20 serving as a fastening means.

The holder 50 is hinged to the mounting bracket 20 with respect to a parallel to the hinge axes, with respect to which successive gate members are hinged together, extending pivot axis 24. The mounting bracket 20 may be U-shaped, wherein the outer leg engage around a pivot leg 52 of the holder 50 and a connecting leg rests against the inner boundary surface 12 of the door member 10 and can be secured there. The position of the mounting bracket 20 can be adjusted in the vertical direction, as indicated by the double arrow 22. For this purpose, the connecting leg of the mounting bracket 20 may be penetrated by extending in the closed position in the direction of gravity slots, which are penetrated by mounting screws, which on the other hand engage in the door leaf member 10.

In addition, the position of the pivot axis 24 may be adjustable in a direction perpendicular to the inner boundary surface 12 of the door member 10 extending direction, as indicated by the double arrow 23. The pivot leg 52 of the holder 50 merges into an obtuse angle thus enclosing guide leg 54, wherein the axis of rotation 61 of the roller 60 is disposed in the transition region between the pivot leg and guide leg of the holder 50 and extends approximately parallel to the pivot axis 24. Likewise, the roller shaft 63, with respect to which the roller 62 is rotatably supported on the guide leg 54 of the holder, extends parallel to the pivot axis 24.

As shown in Fig. 1, includes the axes of rotation 63 and 61 of the rollers 62 and 60 containing the guide plane 55 with the axis of rotation of the pivot axis 24 adjacent guide roller 60 and the pivot axis 24 containing pivot plane 53 at an obtuse angle α, the obtuse angle between the pivot leg 52 and the guide leg 54 corresponds. In the closed position shown in Fig. 1, the pivoting plane 52 increases, starting from the pivot axis 24 in the direction of the intersection between the pivot plane and the guide plane, wherein the guide plane 55, starting from the intersection between the pivot plane 53 and guide plane 55 approximately parallel to the end portion 210 of the supplementary rail 200 extends.

Overall, a distance between the front, the door leaf in the closed position facing the end of the end portion 210 of the supplementary rail 200 and the inner boundary surface 12 of the uppermost door leaf member 10 is bridged by the holder 50 in the closed position. As a result, a space designated by 70 in FIG. 1 is kept free, in which a traction cable coupled to the lowermost door leaf member can be guided without obstructing the movement of the door leaf. The position shown in Fig. 1 of pivot axis 24 and axes of rotation 61 and 63 is further achieved that when pressure on the upper Torblattgliedrand from the outside a clamping action of the recorded in the end portion 210 of the supplementary rail 200 guide rollers 60 and 62 is produced by the guide roller 60 is urged against a lower boundary surface of the end portion 210, while the guide roller 62 is urged against an upper boundary surface of the end portion 210 of the supplementary rail 200.

This clamping effect is facilitated by the fact that the guide plane 55 forms an obtuse angle with the pivot plane 53, so that the holder 50 is pivoted on pressure the upper Torblattgliedrand with respect to the axis of rotation 61 of the guide roller 60, whereby the clamping effect described above can be achieved. The obtuse angle between leadership tion level and pivot plane is preferably about 120 ° to 165 °. Particularly preferred is the angular range between 130 ° and 150 °.

In the transition from the closed position shown in Fig. 1 in the open position shown in FIG. 2, the holder 50 is pivoted relative to the pivot axis 24 in the direction of the inner boundary surface 12 of the door leaf member 10. When the rollers 60 and 62 from the downwardly sloping end portion 2 0 of the supplementary rail 200 in the extending approximately in the horizontal direction rectilinear portion 220 of the supplementary rail 200, the guide plane 55 is pivoted so that it is approximately in the open position shown in FIG parallel, preferably coplanar to the inner boundary surface 12 of the Torblattglieds 10 extends.

During the entire opening movement, the roller 62 leads the upper edge of the door leaf member 10 ahead. By varying the distance of the pivot axis 24 from the inner boundary surface 12 of the door leaf member 10 can be achieved that the door leaf member 10 is disposed in the open position as well as in the closed position approximately in the same plane as the trailing at the opening movement Torblattglieder whose rollers are guided in a not shown in Fig. 2, below the supplementary rail section 220 approximately parallel thereto extending guide rail. The door leaf member 10 is aligned in the end portion of the opening movement approximately in a horizontal plane, so that it is not "placed" when running on a arranged at the rear end of the trajectory spring buffer that can be used to trigger the closing movement, it is then not too Überknickungen.

This kinematics is ensured by the pivotally mounted holder 50, on the one hand a desired distance between the roller axis 61 and inner boundary surface 12 in the closed position, on the other hand, but also allows an approximation of the roller axes 61 and 63 in the open position, which prevents the installation of the upper Torblattrands. The distance between the caster axle 61 and the inner boundary surface 12 of the door leaf member 10 in the closed position enables a construction in which the supplementary rail 200 terminates at a distance in front of the inner boundary surface 12 of the door leaf member 10 so as to provide space for the movement of the pull cable , In the sectional view of FIG. 3, a door leaf member 10 arranged in the closed position can be seen, on the inner boundary surface 12 via a schematically indicated roller holder 14, a roller 16 is mounted, which is rotatably mounted on the roller holder 14 with respect to a rotation axis 15. In the closed position shown in Fig. 3, the roller 16 is in an approximately in Direction of gravity extending portion 150 of a guide rail added. In the schematic illustration according to FIG. 3, the door leaf element 10 is a door leaf element arranged below the uppermost door leaf element in the closed position. The uppermost door leaf member in the closed position is hidden in this illustration. An opening movement of the door leaf is supported in the embodiment of the invention shown in Fig. 3 with the aid of a tensioned in the course of a closing movement and a torsion spring shaft 400 revolving torsion spring. The torsion spring is hidden in Fig. 3 for reasons of clarity.

The torsion spring shaft 400 is rotatably mounted above the arcuate portion 100 of the guide rail assembly with respect to a rotational axis 420 extending horizontally and parallel to the hinge axes with respect to which the door leaf members are hinged together. At an axial end portion of the torsion spring shaft 400, a cable drum 300 aligned coaxially with the torsion spring shaft 400 is rotatably connected to the torsion spring shaft 400. The cable drum 300 serves to wind a wire rope 300 which is fastened on the other hand to the door leaf member which is the lowest in the closed position, with which the restoring force of the torsion spring revolving around the torsion spring shaft 400 is transferred to the door leaf in the door leaf closing position.

In the course of an opening movement, a portion of the wire rope connecting the lowermost door leaf member to the cable drum 300 travels from the position indicated at 320a in the direction indicated by the arrow 325 to the position indicated at 320b in which the wire rope is completely wound on the cable drum 300 is. In the course of a closing movement, the wire rope 320 is unwound from the cable drum 300. As indicated by the arrow 326, a portion of the wire rope connecting the lower edge of the door leaf to the cable drum 300 travels in the course of the closing movement, starting from the position indicated at 320b towards the position indicated at 320a, which it reaches when it reaches the closed position , In the course of this traveling movement, the wire rope passes through an indicated at 350, perpendicular to the hinge axis of the articulated connection between individual door leaf members extending and the guide rail 150-containing plane.

A correspondingly increased axial length of the cable drum 300 is required for gates with a height of 3.50 m or more and correspondingly long wire ropes. A collision-free movement of the wire rope from the open position indicated at 320 b to the closed position indicated at 320 a is made possible with gates according to the invention, because the supplementary rail is spaced apart from the inner boundary surface 12 of the door leaf 10 in the closed position. Position containing level ends. Alternatively, the diameter of the cable drum 300 can be increased, so as to be able to wind corresponding cable lengths with a smaller axial length in one layer. However, this would require more space above the opening to be closed, which is not regularly available. 3, the portion of the wire rope which connects the cable drum 300 to the bottom door leaf member is usually arranged on the side of the cable drum facing the door leaf and runs from there tangentially to the cable drum approximately in the direction of gravity. The position 320b indicating the open position and the position 320a indicating the closed position are indicated in FIG. 3 merely on the side of the cable drum 300 facing away from the door leaf 10, for reasons of clarity of presentation.

The advantageous kinematics of gates according to the invention with a radius of curvature of the inner guide surface of the arcuate section 100 of the rails in the range from 450 to 550 mm will be explained below with reference to FIGS.

In FIG. 4, the acceleration values at the upper edge of the uppermost door leaf member in the course of an opening movement are plotted against the timing of the opening movement caused by the polygon effect when the radius of curvature of the guide surface 120 is 36 mm, and the height of the individual door leaf members in the direction parallel to the lateral edges direction is 750 mm, the opening speed is set so that it is on average about 300 mm / s. With a radius of curvature of 361, 5 mm, for which the accelerations are plotted in Figure 4, resulting in jumps in acceleration of more than 800 mm / s ² as shown in Fig. 4 can be seen.

When the radius of curvature is increased to a value of 510 mm, the conditions shown in FIG. 5 result, in which the acceleration jumps are reduced to less than a quarter of the value according to FIG. 4, whereby the mechanical load on the entire door construction is significantly reduced can. In the case of gates according to the invention, this advantage can be utilized without requiring more space for the guide rail arrangement by providing supplementary rails for the rollers mounted on the upper door leaf member, which ends advantageously at a distance from the inner boundary surface of the door leaf in the closed position.

6 shows a comparison between the accelerations occurring in conventional gates and the accelerations occurring in the case of the invention, which particularly illustrates the advantages achievable with gates according to the invention. In Fig. 6 are the Accelerations at the same average opening speed of about 300 mm / s shown. The advantages achieved according to the invention can also be utilized to increase the opening speed. Such an increase leads to an increase in the acceleration jumps even in gates according to the invention. However, the opening speed can be more than tripled compared to conventional gates until the accelerations occurring in conventional gates even at the usual speeds are achieved.

In a systematic investigation of the kinematics of the Torblattbewegung has been found that an optimal compromise between the minimization of the maximum acceleration jumps on the one hand and limiting the space requirement for the arcuate portion on the other hand can be achieved if the ratio of the inner radius (radius of curvature of the inner guide surface) to the height of Torblattglieder in the range between 0.6 and 0.8, preferably in the range between 0.65 and 0.75, more preferably in the range between 0.66 and 0.7 is selected, with a ratio of 0.68 is particularly useful has proved.

In Figures 7 and 8, the limiting device of a door according to the invention is shown schematically. The limiting device 1200 has a first limiting element 1220 and a second limiting element 1240. The first delimiting element 1220 can be pivoted together with the coupling device 1082 about a pivot axis 1250 with respect to the lower door leaf element 1012. The pivot axis 1250 is parallel to the hinge axes, with respect. Of which the individual Torblattglieder are hinged together. The delimiting element 1220 has a holding plate 1220 extending approximately perpendicularly to the pivot axis 1250 and an edge of the holding plate 1220 which is approximately perpendicular to the pivot axis 1250 in the form of a peripheral edge 1230 in the form of a collar 1230 partially revolving around the pivot axis 1250. The limiting element 1240 is designed in the form of a stop element attached to the pivoting lever 1060. The stop element is executed in the illustrated with reference to the drawing embodiment of the invention in the form of an approximately parallel to the pivot axis 1250 extending stop pin. Stop element 1220 and tee 1240 are in the direction of the pivot axis 1250 next to, in the drawing representation acc. Fig. 7 behind the door leaf member 1012 arranged. In the closed position shown in Fig. 7, the limiting pin 1240 passes upon pivoting of the pivot lever 1060 in the direction of the closed door with the interior in the direction indicated by the arrow P3 direction in abutment against the Begrenzungszulisse 1230. Similarly, the Begrenzungs link 1230 passes when pivoting the lower Gate leaf member 1012 in the by In this way, a pivoting of the lower Torblattglieds 1012 in the direction indicated by the arrow P1 direction bezgl. The arranged on the pivot lever 1060 guide roller 16 is prevented. A pivoting of the door leaf member 1012 in the direction opposite to the lifting direction P1 can be prevented by means of a not shown in the drawing and fixed to the pivot lever 1060 stop.

During the transition of the door leaf from the closed position shown in FIG. 7 into the open position shown in FIG. 8, the coupling device 082 and thus also the limiting link 1230 under the tensile force of at least in the region of a coupled to the door leaf section as a roller chain traction means 1080 in the direction indicated by the arrow P2 with respect to the lower edge 1014 of the Torblattglieds 1012 pivoted about the pivot axis 1250. As is apparent from a comparative analysis of FIGS. 7 and 8, the limiting element 1240 designed as a limiting pin is released from the limiting slot 1230 in the course of the pivotal movement of the limiting slot 1230 about the pivot axis 1250 and can move in the direction indicated by the arrow P3 with respect to the lower door leaf element 1012 are pivoted about the lever axis 1068. This allows a pivoting movement of the lower door leaf edge 1014 in the direction indicated by the arrow P1 lifting direction with respect. In the closed position above door leaf member. As can be seen particularly clearly in FIG. 7, the radial distance of the limiting collar 1230 from the pivot axis 250 increases in a direction opposite to the arrow P2. As a result, a gradual swinging out of the pivoting lever 1060 with respect to the door leaf member 1012 about the lever axis 1068 for initiating the pivotal movement of the door leaf member 1012 in the lifting direction is made possible. At the same time, in the region 1232 of the limiting collar 1230 with a larger radial distance from the pivot axis 1250 forms an inlet funnel which simplifies the threading of the limiting pin 1240 mounted on the pivoting lever 1060 in the course of the closing movement of the door leaf. The pivoting movement of the pivoting lever 1060 about the lever axis 1068 in the direction opposite to the lifting direction P1 direction P3 can be limited by a stopper mounted on the pivot lever 1060 and not shown. This reduces the risk that the lower edge 1014 of the lower Torblattglieds 1012 is urged under the action of the roller chain 1080 mediated tensile force against the roller chain 1080 deflecting Umlenkritzel. In addition, the limiting device 1200 has a guide surface 1260 arranged in the upper region of the door opening to be closed by the door leaf, which extends obliquely upwards. The guide surface is associated with a further arranged in the region of the lower edge of the Torblattglieds 1012 limiting element. In the illustrated in the drawing Embodiment of the invention is in the further limiting element to a. With respect to the pivot axis 1250 rotatably mounted roller 1270, which protrudes beyond the lower edge 1014 of the door leaf member 1012.

As already described above, in the course of the opening movement, the upper edge of the door leaf, which advances during the opening movement, arrives at a pushing device assigned to the guide rail arrangement 1020, which is arranged, for example, in the form of a compression spring. Under the action of the compression spring, the limiting roller 1270 is urged against the fixed boundary surface 1250 so as to allow low-backlash guidance of the door leaf movement in the region of the lower edge 1014, while at the same time the lower edge 1014 of the Torblattglieds 1012 in the lifting direction 1081 can be raised separately. It should be noted that the pivot lever 1060 and the limiting element 1220 in the course of the opening movement of the door leaf in the same direction of rotation. With respect to the pivot axis 1068 and the pivot axis 1250 are pivoted, while the lower edge 1014 of the door leaf member 1012 in a direction opposite thereto lever rotation direction. is pivoted in the closed position above this lower door leaf member 1012 Torblattglied.

The invention is not limited to the embodiments explained with reference to the drawings. Rather, it is also possible to provide a limiting device with a pivoting link arranged on the pivoting lever 1060 and a limiting pin associated with the coupling device 1082. In advantageous embodiments of the invention, the position of the limiting pin 1240 and the limiting slot 1230 are coordinated so that a contact-free movement of these components takes place against each other without the action of external forces. The lever axis 1068 is arranged above the pivot axis 1250 in the embodiment of the invention shown in the drawing. In the embodiment of the invention shown in the drawing, the guide roller 1016 between the lever axis 1068 and pivot axis 1250 is arranged. In all embodiments of the invention, the coupling device 1082 can be used simultaneously as a safety gear, which prevents a crash of the door leaf when the traction means ruptures or breaks the coupled to the traction device counterbalance.

Claims

claims

A door having a path predetermined by a guide rail arrangement between a closed position in which it is disposed approximately in a vertical plane and an open position in which it is disposed about a head approximately in a horizontal plane, a movable door leaf having a plurality of in Torblattbewegungsrichtung arranged one behind the other and with respect to perpendicular to the predetermined path extending hinge axes hingedly interconnected Torblattgliedern, wherein

the guide rail arrangement comprises two guide rails arranged in the region of the lateral edges of the door leaf running parallel to the predetermined path, each of which has a first section approximately parallel to a lateral edge of the door leaf in the closed position substantially rectilinearly in the direction of gravity, a second, approximately parallel to a lateral edge of the door leaf in the open position substantially rectilinearly extending portion and a rectilinear portions interconnecting arcuate portion whose radius of curvature at an inner guide surface thereof 400 mm or more, preferably 420 mm or more, more preferably 450 mm or more , in particular 500 mm or more,

characterized in that the guide rail assembly having in the region of the leading edge in an opening movement of the opening movement moving leading Torblattglieds leading guide means cooperating complementary rails having a above the second rectilinear portion extending approximately parallel thereto third rectilinear portion.

2. Gate according to claim 1, characterized in that the third rectilinear portion merges at its in the Torblattschließstellung facing the thus closed space facing inner boundary surface of the door leaf front end in a downwardly sloping end portion which terminates at a distance from a plane, which contains the inner boundary surface of the door leaf in the closed position.

3. Gate according to claim 1 or 2, characterized in that the leading guide means comprise a guide element received in the supplementary rail, such as a guide roller rotatably mounted with respect to an axis of rotation extending approximately parallel to the hinge axes, that via a with respect to a parallel to the hinge axes extending pivot axis pivotally mounted on the opening at the opening movement leading gate member mounted on the leading gate member.

4. Gate according to claim 3, characterized in that the axis of rotation in a first occupied in the closed position pivot position of the holder in the direction of the interior has a distance from the inner boundary surface of the leading door member, which is reduced in an opening movement of the door leaf by pivoting the holder.

5. Gate according to claim 3 or 4, characterized in that the holder is secured via a fixable with respect to the inner boundary surface of the leading gate member fastening means on the leading door member, wherein the holder relative to the preferably in a direction perpendicular to the inner boundary surface direction offset to a Limiting surface extending pivot axis is pivotally supported on the fastening means and / or the position of the fastening means with respect to the leading gate member in a plane containing the boundary surface, in particular in the direction of the side Torblattrands selectable.

6. Door according to one of claims 3 to 5, characterized in that the leading guide means comprise two with respect to axes parallel to the axes of rotation rotatably mounted on the holder guide rollers.

7. Gate according to claim 6, characterized in that a rotation axis containing the guide plane includes an obtuse angle with the pivot axis and the pivot axis closest axis of rotation containing pivot plane, wherein the pivot plane in the closed position, starting from the pivot axis in the direction of the cutting line of management level and pivoting plane rises steeper than the in the closed position approximately parallel to a tangent to the end portion of the supplementary rail rising management level.

8. Door according to claim 7, characterized in that the guide plane extends in the open position on the inner boundary surface of the leading edge during an opening movement gate member side of the pivot axis approximately parallel to the inner boundary surface, preferably approximately coplanar thereto.

9. Gate according to one of the preceding claims, characterized by an opening movement supporting weight compensation device with a coupled to the closing position in the bottom gate member traction means, in the course of an opening movement to a above the arcuate portion or behind a curved portion facing away from the end of the second straight extending portion arranged winding device is wound up.

10. Door according to claim 9, characterized in that the traction means comprises a pull rope and the winding means a with respect to a parallel to the axes of articulation extending drum axis winding drum with a drum axis helically circulating Füh- has rungsnut in the drum shell for it in the course of the opening movement aufzuschelnde pull rope.

11. Door according to claim 10, characterized in that a lowermost door member with the cable drum connecting portion of the pull rope in the course of the closing movement at its end facing the cable drum, starting from a side edge of the door panel facing portion of the cable drum in the direction of a lateral Edge of the door panel remote from the cable drum wanders and thereby reaches the supplementary rail passing through and extending perpendicular to the joint axes level and possibly passes through.

12. Door according to claim 11, characterized in that the supplementary rail passing through the plane passing through the side edge of the door panel remote area of the cable drum.

13. Door according to claim 11 or 12, characterized in that the cable drum is arranged at an above the arcuate portion or behind an end remote from the arcuate portion of the second rectilinear portion and coupled in the course of a closing movement to exciting torsion spring arrangement, wherein the drum axis preferably approximately parallel, in particular approximately co-linear with the torsion spring axis.

14. Door according to one of the preceding claims, characterized in that the inner radius of the arcuate, in particular circular arc-shaped portion is less than 800 mm, preferably less than 700 mm, in particular 600 mm or less.

15. Door according to one of the preceding claims, characterized in that the ratio of the inner radius to the height of at least one door member in a direction parallel to the lateral edges of the direction of 0.6 or more, preferably 0.65 or more, especially 0.665 or more, especially preferably about 0.68.

16. Door according to claim 15, characterized in that the ratio of the inner radius to the height of at least one door member is 0.8 or less, preferably 0.75 or less, more preferably 0.7 or less.

17. Door according to one of the preceding claims, characterized in that the height of at least one door leaf member in the direction of the lateral edge of the door leaf 550 to 950 mm, in particular 600 to 900 mm, particularly preferably 700 to 800 mm.

18. Door according to one of the preceding claims, characterized by a coupled to the door leaf electromotive drive means for effecting the Torblattbewegung.

19. A gate according to claim 18, characterized in that the lifting device is designed so that the Torblattschließbewegung is automatically decelerated when the leading edge during the closing movement falls below a height of 2.50 m.

20. Door according to claim 18 or 19, characterized in that the drive device comprises a light grid arrangement, with the one monitored by the leading during the closing movement Torblattrand space monitored and in this space reaching objects and / or persons can be detected.

21. Gate, in particular according to one of the preceding claims, with a path predetermined by a guide rail arrangement between a closed position in which it is arranged approximately in a vertical plane, and an open position in which it is preferably arranged above the head approximately in a horizontal plane , movable door leaf having a plurality of in Torblattbewegungsrichtung successively arranged and with respect to perpendicular to the predetermined path extending hinge axes hingedly interconnected Torblattgliedern, wherein

the guide rail arrangement has two guide rails arranged in the region of the lateral edges of the door leaf which are parallel to the predetermined path running, each of which has a first section approximately parallel to a lateral edge of the door leaf in the closed position in the direction of gravity substantially rectilinearly, a second section approximately parallel to one Side edge of the door leaf in the open position substantially rectilinear portion and a rectilinear portions interconnecting arcuate portion has, and

having supplementary rails cooperating in the region of the leading edge of the door leaf member in the opening movement when the opening movement is in progress and having a third rectilinear section extending approximately parallel to the second straight section;

characterized in that the leading guide means comprise a guide element accommodated in the supplementary rail, such as a guide roller rotatably mounted with respect to an axis of rotation extending approximately parallel to the hinge axes, which pivotably projects past a pivot axis extending parallel to the hinge axes on the leading during the opening movement Torglied mounted holder is attached to the leading gate member.

22. Door according to one of the preceding claims, characterized in that the height of the door leaf is 3.50 m or more, in particular 4.0 m or more.

23. Gate according to one of the preceding claims, characterized in that the supplementary rail has a preferably designed as a window-like recess therein receptacle for receiving at least a portion of the leading guide means upon reaching the closed position.

24. Gate according to claim 24, characterized in that the receptacle is associated with a movement of the recorded in the recording guide means in the opening direction counteracting stop assembly.

25. A gate according to one of the preceding claims, characterized in that a lower in the closed position and trailing edge of the door leaf at least when reaching the open position by a pivoting movement of a rim having this lower Torblattglieds in a lifting direction with respect to a in the closed position above Torblattglied is separately raised with respect to the predetermined path, wherein preferably a pivoting movement of the lower Torblattglieds in the lifting direction at least along a portion of the predetermined path limiting device is provided.

26. Door according to claim 25, wherein the gate has a separately raisable edge of the lower Torblattglieds at the transition from the open position to the closed position in the predetermined path urging first biasing means.

27. Door according to claim 25 and claim 26, wherein in the closed position of the door leaf, a second pretensioning device counteracts a movement of the separately liftable edge in a direction orthogonal to the door leaf level.

28. Gate according to one of claims 23 to 25, wherein on each of the guide rail facing sides of the separately liftable edge having Torblattglieds at least one guide element at the bottom of this door leaf member is arranged.

29. Door according to one of claims 25 to 28, wherein in the open position, the liftable edge of the door leaf member in a direction perpendicular thereto is further spaced from a arranged on this Torblattglied guide element than in the closed position and relative to the guide member is lifted upwards.

30. Door according to one of claims 25 to 29, wherein the separate liftable door leaf member via a pivot lever of a change in the distance between at least one this guide leaf element arranged guide element and the Torblattglied enabling lever assembly is connected to the guide element, wherein the guide element with respect to the opening position by pivoting the pivot lever with respect. A lever axis in a direction opposite to the lifting direction with respect to the lower Torblattglied is pivoted.

31. Door according to one of claims 25 to 30, wherein the door leaf from the closed position in the open position lifting traction means is connected at its one end to the lower edge of the door leaf and is coupled at its other end with a weight compensation device, and wherein the traction means the first biasing device counteracts.

32. Gate according to claim 31, characterized in that the traction means via a respect. A parallel to the pivot axes extending pivot axis pivotally coupled to the lower edge coupling device is coupled to the lower edge of the door leaf, wherein the pivot axis disposed in the closed position below the lever axis is.

33. Gate claim 32, characterized in that the coupling device under the pulling action of the traction means in reaching the open position in one of the lifting direction (P1) opposite direction (P2) with respect to the lower door leaf element is pivoted.

34. Gate according to one of claims 31 to 33, characterized in that the limiting device has a coupling device associated with the latter and. With respect to the pivot axis pivotable limiting element and the lever assembly associated and with this respect. The lever axis pivotable limiting element.

35. Gate according to claim 34, characterized in that one of the boundary elements has a lever axis and / or the pivot axis at least partially encircling boundary slot.

36. A gate according to claim 35, characterized in that one of the limiting elements has a in the pivoting movement of the lower door leaf element in the lifting direction (P1) in abutment with the limiting gate reaching stop element.

37. Gate according to one of claims 35 or 36, characterized in that the boundary slot extending transversely, in particular approximately perpendicular thereto, starting from a holder of the coupling device extending approximately perpendicular to the joint axes. has the collar and / or the stop element is mounted on the pivot lever and in the pivoting movement of the lower door leaf element in the lifting direction (P1) comes into abutment against the pivot axis facing boundary surface of the Begrenzungs Beil.

38. Gate according to claim 37, characterized in that the stop element is released upon reaching the open position of the Begrenzungs link.

39. Gate according to one of the preceding claims, characterized in that the limiting device has a on reaching the open position with a mounted on the lower edge of the lower door leaf element limiting element fixed guide surface.

40. Gate according to claim 39, characterized in that the fixed guide surface is attached to the edge opening having the wall and extends obliquely upwards.

41. A door according to claim 39 or 40, characterized by a remote from the arcuate guide rail end of the over-head guide rail segment mounted in the opening movement to the leading edge of an opening movement of the door panel thrust means, with which attached to the lower edge of the door panel limiting element is urged in the open position against the guide surface.

42. Gate according to one of claims 25 to 41, characterized in that the first and / or the second biasing means comprises a spring element.

43. Gate according to one of claims 26 to 42, characterized in that the first and / or the second biasing means comprises a torsion spring.

44. A gate according to one of the preceding claims, characterized by a coupled to the door leaf drive means with an electric motor, a coupled to the electric motor gear assembly and a motor control and the opening movement of the door leaf supporting weight balancing device.

45. Gate, in particular according to claim 44, characterized in that the gear arrangement coupled to the electric motor self-locking and reducing worm gear and coupled to the output shaft of the worm gear translating gearbox be, such as chain transmission, with a transmission ratio of preferably 1: 1, 5 or more, in particular 1: 2 or more, more preferably 1: 3.5.

46. Gate according to one of the preceding claims, characterized in that the electric motor and the gear arrangement for generating an opening and / or closing speed of 0.6 m / sec or more, in particular 1 m / sec is designed.

47. Gate according to one of the preceding claims, characterized in that the electric motor has a frequency-controlled motor.

48. Gate according to one of claims 44 to 47, characterized in that the motor control for starting and / or deceleration of the door leaf from a rest position or from a Torblattbewegung with a predetermined acceleration profile is operable.