Tor

Abstract

Gate (1) with a gate leaf (8) that can be vertically adjusted in its relative position, wherein at the lower end of the gate leaf (8) an end of a transmission element (16) engages on each side, the transmission elements (16) extend within a frame or mounting profiles (19) of the gate (1) to respective upper transmission wheels (17), the transmission wheels (17) being part of a drive train with a connecting drive shaft (6), wherein a drive unit (3) for the gate leaf (8) engages on at least one side of the drive shaft (6), wherein the gate leaf (8) consists of sectioned elements that are rotatably connected to one another and are guided by means of rollers (21) in approximately vertical, lateral guides (2), wherein the lateral guides (2) transition on the upper side into spiral sections with spirally extending guide tracks (11), characterized in thatthat such a guide track (11) is embedded within a circuit board-like guide plate (4), wherein a transmission track (10) for the transmission element (16) runs approximately parallel to the guide track (11) in the circuit board-like guide plate (4), the transmission element (16) emerging from the approximately vertical path is guided into the transmission track (10) via a transmission wheel (17) mounted in the circuit board-like guide plate (4).

Description

The invention relates to a gate with a gate leaf that can be vertically changed in its relative position, which consists of segmented elements that are rotatably connected to one another and are guided by means of rollers in approximately vertically running lateral guides, wherein the lateral guides transition into lateral spiral sections on the upper side. EP 4 118 287 B1 discloses a gate operating system for a gate, wherein the gate comprises a gate leaf that, in a rolled-up state, runs in two tracks in the form of curves and spiral rails. First transmission elements are connected to at least one drive unit, and curves or spiral rails are each provided in the form of a second transmission element. The first transmission elements are driven by an omega drive unit configured to engage with the second transmission elements and move the protective barrier along them. The drive unit is operated in such a way that the protective barrier is moved from the rolled-up closed state to the rolled-up open state and vice versa. A gate, particularly for driveways, for opening and closing a gate opening is described in DE 10 2005 056 032 A1. The gate leaf is moved, in relation to the direction of movement, along a curved path alongside a vertical path, the curved path being made of sheet metal and having a spiral shape. A spiral parking position for a gate leaf, also made of sheet metal, is described in DE 10 2005 049 584 A1. EP 3 669 045 B1 also depicts a gate which, during an opening movement, moves from a closed position into a multi-layered winding position and, via a guide arrangement with a spiral guide track section on the lateral edge of the gate leaf, through a flexible tension element, such as a belt, a strap, a chain or a rope, which is attached on one side to a leading section of the gate leaf and on the other side to a rotatable winding shaft arrangement that spirally surrounds the gate leaf in the winding position. To close a roof window, a closing device made of rotatably interconnected elements is guided into a holder with a spiral-shaped opening, the rotatable shaft having a pulley on which a rope is located for changing the position of the closing device, as can be seen in NL 1015953. Solutions for repositioning gate leaves consisting of segmented elements rotatably connected to one another are, according to the prior art, expensive in their design and sometimes require very complex assembly procedures. Therefore, the object of the invention is to enable the cost-effective manufacture of a gate with a gate leaf of the aforementioned type, which must also be easy to service. The object of the invention is solved by the features of the main claim, while the dependent claims following the main claim represent a further embodiment of the inventive concept. In the prior art, a centrally driven winding shaft, powered by a drive unit, moves a gate leaf from its vertical closed position into a spiral shape using telescopic arms. Such a design appears to be very maintenance-intensive during long-term operation. The present invention takes a completely different approach to solving the problem, namely by separating the drive mechanism and the gate leaf's parking position from the rotatably connected elements and the winding shaft. A winding shaft for changing the gate leaf's position is eliminated. Instead, a drive shaft is positioned off-center relative to the spiral parking position of the gate leaf. To move the gate leaf from the closed position into a parking position, a transmission element is attached to the underside of the bottom element of the gate leaf on each side.Such a transmission element can be a chain or a toothed belt. These transmission elements are guided laterally alongside the gate leaf, each via transmission wheels connected to the drive shaft. The drive shaft itself is set in rotation by at least one drive unit comprising a motor and a gearbox. The rotation and the transmission elements inevitably cause a change in the position of the gate leaf. Alternatively, the drive shaft can also be rotated by other forces, such as a manually operated drive chain or similar device. The drive shaft is supported at each end by bearings. These bearings are mounted in a plate-shaped guide plate, hereinafter referred to as a plate-like guide plate. A plate-like guide plate is defined as any plate-shaped element that is free of protruding curved guide elements. Such a plate-like guide plate can be easily arranged with a frame surrounding the gate leaf or with fastening elements on the top of a gate lintel. The plate-like guide plate incorporates a spirally extending guide track for the rollers of the individual gate leaf elements. This makes it easy to incorporate the same rollers that are used for guiding the gate leaf, primarily in the vertical guide area, into the plate-like guide plate, thus avoiding damage from protruding elements, as is the case with prior art.In a preferred embodiment, so-called J-shaped guide rails are used for the essentially vertically extending guides. This same profile cross-section is also incorporated into the circuit board-like guide in the helical course of a guide track. For example, such milled guides are maintenance-free and wear-free. In addition to the spiral guide track for the elements with their rollers, another transmission track runs essentially parallel to it. This transmission track is adapted in cross-section to the transmission element used, whether chain or toothed belt. This means that the end of the transmission element, which is moved by the transmission wheels when the gate leaf changes position relative to itself, can be free of any guide elements or similar components. Thus, the transmission element is essentially pushed into its profile-adapted transmission track when the gate leaf opens. Such a circuit board-like guide plate can be manufactured cost-effectively and precisely from a dimensionally stable plastic. This plastic should be durable and tough, as well as weather-resistant and wear-resistant. Both the transmission track and the guide track can be milled into the circuit board-like holder. This type of design is significantly less expensive to manufacture than the spiral guides in sheet metal known from the prior art. Furthermore, such a circuit board-like guide made of plastic is not susceptible to corrosion, unlike sheet metal versions, which can be affected depending on the installation location. Mounting such a circuit board-like guide plate is simple and error-free. To further enhance the dimensional stability of the circuit board-like guide, the outer edge of the guide plate is reinforced with a profile, for example in the form of a tube or similar. Such a design is also easily applicable in niche areas and tight building layouts. A possible embodiment of a gate can be seen in the following schematic sketches: Fig. 1 A perspective view of a gate leaf with a drive arranged on top; Fig. 2 A section view of the path of a transmission element in conjunction with a drive shaft; Fig. 3 As Fig. 2, but omitting the drive shaft, from a different angle; Fig. 4 A section view of a mounting profile or a frame with an arranged guide profile and the gate leaf; Fig. 5 A view of the plate-like guide plate in the installed position; Fig. 6 A detailed view of the plate-like guide plate with an inserted bearing; Fig. 7 A cross-sectional view of the plate-like guide plate. Fig. 1 shows a view of part of an upper embodiment of a gate 1 with a gate leaf 8. The gate leaf 8 is guided in lateral guides on each side, the lateral guides being essentially vertical. The ends of these lateral guides 2, which can be attached to frames or mounting profiles, transition into plate-like guide plates 4. Such a plate-like guide plate 4 is enclosed outside the frame or mounting profile 19 by a reinforcing profile 5. A drive unit 3 is arranged outside the gate leaf area, which has a connection 23 for a drive shaft 6. The drive shaft 6 extends over the entire width of the gate leaf (8), which is not shown in Fig. 1. The section view in Fig. 2 shows, for example, a section of the circuit board-like guide plate 4 with the arrangement of a bearing 18, which is located within the circuit board-like guide plate 4 and is operatively connected to the drive unit 3 on the opposite side. In this chain of action, a transmission wheel 17 for the transmission element 16, designed as a chain, is shown within a recess 27 of the circuit board-like guide plate 4, in addition to the bearing 18. The transmission wheel 17 is thus visible in the chain of action as the drive unit 3 with the downstream drive shaft 6. In the preferred embodiment, a transmission element 16 is shown here as a drive chain. The transmission element 16 is guided and deflected in a transmission track 10 from a vertical section 26 via the transmission wheel 17 into a substantially horizontal section 25 of the transmission track 10.This transmission track 10 transitions into a spiral design after the horizontal section 25. Thus, due to their interconnectedness, the end of the transmission element 16 can be moved into a sort of parking position. In Fig. 3, a perspective view shows the plate-like guide plate 4 with its section-defining reinforcing profile 5 and in conjunction with the frame or mounting profile 19. The J-profile 20 is connected to the plate-like guide plate 4, allowing the door leaf 8 to be moved from its closed position to a parked position. The connected transmission element 16 emerges from the area of ​​the frame or mounting profile 19 and continues within the vertical section 26 in the plate-like guide plate 4. Simultaneously, the individual elements of the door leaf 8 are moved into the area of ​​the plate-like guide plate 4 by the drive unit 3. The rollers 21 are thereby transferred from the J-profile 20 directly into the uniform profile of a guide track 11 in the plate-like guide plate 4.Both at the end of the guide track 11 and the transmission track 10, openings 12 are provided within the circuit board-like guide plate 4. These openings 12 serve as a safety measure to prevent blockage by objects within the transmission track 10 or the guide track 11, as these objects can be pushed out through the openings 12. The transmission element 16 is not guided separately in the essentially vertical section of the frame or mounting profile 19, because the weight of the door leaf 8 in conjunction with the transmission wheel 17 keeps the transmission element 16 under constant tension. The J-profile 20 is connected to the frame or mounting profile 19 during the installation of the door leaf 8. For stability reasons, a connecting strut 22 can be arranged between the frame or mounting profile 19 located to the left and right of the door leaf 8. Fig. 5 shows a different view of the circuit board-like guide plate 4, namely above the gate leaf 8, an area normally concealed by the lintel above the building opening. The gate leaf 8 can be constructed of transparent panels of the individual elements, although the last upper element 9 is shown as a solid element. The drive shaft 6 is provided with a similar bearing 7 on the opposite side of the gate leaf 8. The circuit board-like guide plate 4 can be seen in particular with the partially present reinforcing profile 5 in Fig. 6. For better understanding, the transmission element 16 has not been shown in this illustration, but the vertical section 26 with the adjoining horizontal section 25 of the transmission track 10 clearly shows the transition to the spiral path parallel to the path of the guide track 11 for the rollers 21 of the gate leaf 8 with its element 9. In a sectional view, the circuit board-like guide plate 4 is shown in Fig. 7. It is clearly evident that both the transmission track 10 and the guide track 11 are arranged parallel to each other in a spiral pattern. A roller foot 15 is also incorporated within the guide track 11 for the rollers 21, preventing them from slipping out of the circuit board-like guide plate 4. In the preferred embodiment using a chain as the transmission element 16, the cross-section of the transmission track 10 has been adapted. This is shown by roller guide webs 13 positioned opposite each other with a gap. Laterally to the roller guide webs 13, tab guides 14 for the tabs of the transmission element are formed in the form of a chain. On one side, the circuit board-like holder is closed in the area of ​​the guide track 11 and the transmission track 10 by a boundary wall 24. Reference sign 1 Gate 2 Side guides 3 Drive unit 4 Plate-like guide plate 5 Reinforcement profile 6 Drive shaft 7 Bearing 8 Gate leaf 9 Element 10 Transmission track 11 Guide track 12 Opening 13 Roller guide bar 14 Tab guides 15 Roller foot 16 Transmission element 17 Transmission wheel 18 Bearing 19 Frame or mounting profile 20 J-profile 21 Roller 22 Strut 23 Connection piece 24 Limit wall 25 Section 26 Section 27 Recess QUOTES INCLUDED IN THE DESCRIPTION This list of documents cited by the applicant was automatically generated and is included solely for the reader's convenience. The list is not part of the German patent or utility model application. The DPMA accepts no liability for any errors or omissions. Cited patent literature EP 4 118 287 B1

[0002] DE 10 2005 056 032 A1

[0003] DE 10 2005 049 584 A1

[0003] EP 3 669 045 B1

[0004] NL 1015953

[0005]

Claims

Gate (1) with a gate leaf (8) that can be vertically adjusted in its relative position, wherein at the lower end of the gate leaf (8) an end of a transmission element (16) engages on each side, the transmission elements (16) extend within a frame or mounting profiles (19) of the gate (1) to respective upper transmission wheels (17), the transmission wheels (17) being part of a drive train with a connecting drive shaft (6), wherein a drive unit (3) for the gate leaf (8) engages on at least one side of the drive shaft (6), wherein the gate leaf (8) consists of sectioned elements that are rotatably connected to one another and are guided by means of rollers (21) in approximately vertical, lateral guides (2), wherein the lateral guides (2) transition on the upper side into spiral sections with spirally extending guide tracks (11), characterized in this respect,that such a guide track (11) is embedded within a circuit board-like guide plate (4), wherein a transmission track (10) for the transmission element (16) runs simultaneously in the circuit board-like guide plate (4) at a distance from the guide track (11) approximately parallel to it, the transmission element (16) emerging from the approximately vertical path is guided into the transmission track (10) via a transmission wheel (17) mounted in the circuit board-like guide plate (4). Gate according to claim 1, characterized in that the end of the transmission elements (16) is free of guide means. Gate according to claim 1, characterized in that the drive unit (3) is connected outside the circuit board-like guide plate (4) at at least one end of the drive shaft (6). Gate according to claim 1, characterized in that the circuit board-like guide plate (4) is plate-shaped and made of a dimensionally stable plastic. Gate according to one or more of the preceding claims, characterized in that the spiral sections of the transmission track (10) and the guide track (11) are incorporated into the circuit board-like guide plate (4). Gate according to one or more of the preceding claims, characterized in that the guide track (11) has a J-shaped recess, such as the approximately vertically extending lateral guides (2) for the rollers (21) of the sectioned elements. Gate according to one or more of the preceding claims, characterized in that the transmission element (16) is a chain or a toothed belt. Gate according to one or more of the preceding claims, characterized in that a breakthrough (12) is provided at each end of the guide track (11) and the transmission track (10) in the circuit board-like guide plate (4). Gate according to one or more of the preceding claims, characterized in that the circuit board-like guide plate (4) with the spiral sections is enclosed on the outside section by a reinforcing profile (5). Gate according to one or more of the preceding claims, characterized in that the circuit board-like guide plate (4) is connected to the reinforcing profile (5) on the side frame or the mounting profile (19). Gate according to one or more of the preceding claims, characterized in that the essentially vertical lateral guides (2) are seamlessly connected to the circuit board-like guide plate (4) in such a way that they transition into the guide tracks (11). Gate according to one or more of the preceding claims, characterized in that a drive unit (3) is arranged at each end of the drive shaft (6). Guide for a gate leaf (8) in a parked position, which consists of sectioned elements, by a circuit board-like guide plate (4) with a spirally extending guide track (11) and simultaneously with a transmission track (10) running parallel to this according to one or more of the preceding claims.

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