DK3045643T3

DK3045643T3 - door leaf

Info

Publication number: DK3045643T3
Application number: DK16151469.0T
Authority: DK
Original assignee: Alpha Deuren Int Bv
Priority date: 2015-01-16
Filing date: 2016-01-15
Publication date: 2019-04-15
Also published as: PL3045643T3; DE102015100617A1; DE102015100617B4; ES2718741T3; EP3045643B1; EP3045643A1

Description

Overhead door with a terminal position dampening equipment

The invention relates to an overhead door with a door leaf and lateral guiding rails, which include an essentially vertical section and an essentially horizontal section with an intermediate connecting arch section, wherein the door leaf is disposed to be mobile in the guiding rails, wherein a terminal position dampening equipment is disposed at the ends of the essentially horizontal sections of the guiding rails.

Brake equipment for swing doors is known from the document DE 75 40 330 U1, by means of which the swing door smoothly decelerates at the upper abutment and is retained in this position. In this case, the deceleration is achieved by means of an end stop in conjunction with a leaf spring, the effective spring force thereof being adjustable by a screw. A dampening member, which is attached to the free end of a strap in one or two arrester devices, is represented in the document DE 32 06 813 C1.

The document DE 20 2005 006 255 U1 describes a swing door, which includes a force accumulator apparatus in the shape of a spring buffer at the free end of each running rail. Analogously, such a spring-loaded buffer is also revealed in the document LU 90 915 A1. A segmented door, which is guided in lateral guiding rails, is disclosed in the document EP 1 076 144 A2. For decelerating the segmented door in the closing location, spring assemblies with at least one pair of draw springs are provided within the guiding rails on each side, which assemblies are braced unilaterally firmly at the building.

Terminal position dampening equipment in doors is well known. In this case, it is configured as pressure springs with the intention to provide dampening upon impact for a door travelling into the terminal position of the opening position. Thus, such dampening equipment protects the door leaf and the guiding rails from damage. During the use of pressure springs, which are guided on a tube or a rod, this type of structure generates intolerable noise pollution.

The object of the invention is to provide a mechanically working terminal position dampening equipment for an overhead door having a door leaf, which equipment is simple to manufacture and employable for several door sizes and different types of drives.

This problem is solved by the characteristics of patent claim 1. In this context the dependent claims represent another configuration of the inventive idea.

Terminal position dampening equipment for doors having the configuration as an overhead door, which are automated with a drive, is basically intended to eliminate the kinetic energy present, when the door leaf travels against an abutment during the opening procedure. In the event this would not be handled in this way, during the opening phase of the door leaf, for example upon too hard an impact, the opening mechanism could be damaged.

In manually operated doors, the door leaf is opened by hand and pushed into the opening position thereof. In such a door, the terminal position dampening equipment is so to say used as an abutment, and forms a securing of the door leaf in the opening position thereof. Obviously, in this application, the terminal position dampening equipment with the dampening equipment thereof, may bring the door leaf out of the opening location thereof, however no accumulation of the start up forces will occur.

The present invention is applicable for both uses. However, in the following description, the automated embodiment is described. A terminal position dampening equipment according to the invention is employed, which contains a device, which includes a dampening element, the structural shape thereof, upon impact of the opening door leaf being enlarged, and not like in the state-of-the-art, reduced. According to the invention the device is formed as a draw spring, which upon impact of the door leaf eliminates the contained kinetic energy by enlarging the longitudinal extension thereof, and simultaneously is also able to store said energy. By employing draw springs, the dampening path is not as restricted as with pressure springs, as pressure springs only have a restricted dampening distance, because the spring path may be blocked by windings abutting against each other so that in such case no dampening effect is provided anymore.

Upon impact of the door leaf onto the device for terminal position dampening, the draw spring element absorbs the kinetic energy contained in the moved door leaf and simultaneously stores said energy.

In addition to the above-described use, the terminal position dampening equipment is also employed as a start up assistance during the closing procedure of the door leaf from the opening position to provide assistance in the shape of a start up aide. The kinetic energy absorbed within the terminal position dampening equipment during the opening procedure of the door leaf is stored in the terminal position dampening equipment as static energy upon ending the opening procedure. This is made possible, because the drive of the door leaf effects a blocking of the door leaf in the opening location. Upon initiating the closing procedure, said blocking is released, and simultaneously the at least one terminal position dampening equipment releases the previously stored energy in that a push start assistance on the door leaf is generated. In this case, the terminal position dampening equipment presses against and pushes the upper end of the door leaf, while being assisted by the drive, out of the parking position. Thereafter, the terminal position dampening equipment returns to the basic position thereof, and upon the next opening procedure is able to store again the kinetic energy of the door leaf starting to travel. As the door sizes are of different large dimensions, with the terminal position dampening equipment, it is possible to simply exchange the devices of the energy accumulators in order to be able to simply perform an adaptation to the most different door sizes. In this case, the housing of the dampening equipment always remains the same.

In the terminal position dampening equipment, depending on the size of the door leaf to be moved, the spring characteristics may be adapted to the door size. In this case, it is also possible to employ draw spring elements as duplex spring elements with two draw springs disposed one within the other.

In a further non-inventive embodiment, it is also possible to employ mechanical shock absorbers. Furthermore, according to a non-inventive embodiment, the terminal position dampening equipment may also include an elastic polymer element.

The above-described different devices for the terminal position dampening are accommodated within a housing. Upon impact of the end of the door leaf, said devices may perform a translational movement without any problem, and subsequently, they may relax again into the basic position thereof when the door leaf moves back. A suitable housing may be round, square or rectangular, depending on the use of the terminal position dampening equipment.

While the terminal position dampening equipment known in the state-of-the-art includes an abutment disposed at the front end, the invention, here again, has a different approach. For this purpose, the housing in the longitudinal direction thereof has an open passage. An abutment, which is connected to the device, protrudes from the passage. Preferably, such an abutment at the impact surface of the door leaf is formed from a hard rubber material or another suitable material.

Said configuration of the terminal position dampening equipment allows for mounting thereof laterally to the essentially horizontally extending sections of the guiding rails by means of mounting brackets. This circumstance is particularly advantageous in that depending on the most different door sizes, also the terminal position dampening equipment may be placed to accurately fit. Furthermore, the selected construction type allows for an easy exchange, respectively for retrofitting. This would be not possible with the known spring buffers, because they are installed at cross bars between the horizontal sections of the guiding rails.

According to the invention, the device with the dampening element has end-sided attachments. Guiding parts are provided in the housing and connected to each other by means of a protecting tube. Simultaneously, the abutment, which is laterally protruding from the housing, is affixed to the protecting tube. In this case, the protecting tube in the parking position essentially envelops the draw spring element. In addition to the stationary attachment, the draw spring element is attached in one of the guiding parts.

With the intention to eliminate noise development, the housing on the inside or outside may be configured with dampening material for reducing structure borne noise. Likewise, the protecting tube may be covered on the inside with such materials, for example a plastic material tube.

While employing the same housing in the dampening equipment, the terminal formation may be configured differently. In a first preferred embodiment, the end-sided closure of the housing offers the possibility of executing simultaneously via the mounts for the attachment to a guiding rail also the attachment of one end of the draw spring element. As both ends with their attachments are configured identical, it is possible to employ such a terminal position dampening equipment both on the right and on the left sides with guiding rail installations having the same structural components.

With the intention to even increase the universality of the terminal position dampening equipment, the housing is equipped with its own terminal parts. The draw spring element is attached via one of the terminal parts. In this case, it is simultaneously possible to execute the attachment not directly via the metal terminal parts for the sake of structure borne sound insulation, but with an interposed rubber element, also to provide decoupling of the generated noise when activating the terminal position dampening equipment. In said embodiment, the housing including the device for the terminal position dampening is easy to keep in stock, and thus may also be equipped with the most different dampening means, as well as the different strengths thereof. This embodiment is again attached to the guiding rail with the same attachment means. It is understood that this embodiment is likewise employable for both left and right side applications.

The above described different embodiments of terminal position dampening equipment with a device, which is configured as a draw spring element, may be employed in overhead doors, such a sectional doors and up-and-over doors, as well as in a manual or automated embodiment.

Further advantages, features and application options of the present invention will result from the following description in conjunction with the exemplary embodiments illustrated in the drawings.

The terminology and associated reference numerals itemized below in the list of reference numerals will be employed throughout the description, the claims and the drawings. In the drawing, represents:

Figure 1 a perspective illustration of a first preferred embodiment of a terminal position dampening equipment;

Figure 2 the same as Figure 1, however, in a rear-side view;

Figure 3 a housing for a terminal position dampening equipment;

Figure 4 a partial section of an attachment option of a draw spring element;

Figure 5 another partial section according to Figure 4;

Figure 6 a perspective illustration of the device provided within the dampening equipment;

Figure 7 the same as Figure 6, however, in a rear-side viewing perspective;

Figure 8 a perspective illustration of a second preferred embodiment of a terminal position dampening equipment;

Figure 9 same as Figure 8, however, in a partial view with attachment of the draw spring element;

Figure 10 same as Figure 9, however, with the attachment omitted;

Figure 11 the same as Figure 10, however in a sectional illustration, and

Figure 12 the embodiment according to Figure 8 in an exploded illustration.

In Figure 1 a first preferred embodiment of a terminal position dampening equipment 1 is represented in a perspective illustration. Within a housing 2, which is closed at the end sides by means of closures 3, 4, a device is contained, which is employed for the terminal position dampening of a moved door leaf. Upon impacting upon an abutment 5 located outside the housing 2, the kinetic energy present in the moved door leaf is absorbed and stored. While the terminations 3 and 4 form the termination of the housing 2 at the end sides, simultaneously at the terminations 3, 4 by means of lateral attachments 29, an attachment to non-illustrated essentially horizontally extending guiding rails may be performed via a break-through 8.

While in this exemplary embodiment, the housing 2 is illustrated as a square housing 2, obviously all other types of the form configurations are also possible, in particular round or rectangular.

In Figure 2, in the rear sided view of the terminal position dampening equipment 1, the attachments 29 are visible, which serve for the connection to the guiding rails. Said attachments 29 allow for example for the terminal position dampening equipment 1 not requiring particular space, and not requiring an extended guiding rail as in the state-of-the-art. The terminal position dampening equipment 1 may be placed above or below the essentially vertical guiding sections.

According to the individual illustration of the housing 2 according to Figure 3, the housing 2 essentially consists of a base 9, from which angled side walls 10 and 11 extend, at the ends thereof respectively one web 12 is angled such that a partially enclosed space is created within the housing 2. With the opposite located webs 12 an open passage 13 is created between them, which allows for connecting the abutment 5 for example via a connecting member 6 to a protecting tube 7.

In an enlarged sectional illustration according to Figure 4, an end sided eyelet 28 of a draw spring element 19 with the termination 4 is revealed. In addition to the attachment 29, the termination 4 has an angled part 14, which is provided with break-throughs 18, such that a web 20 remains. The web 20 is configured such that the latter guarantees the possibility of attachment via the eyelet 28 for the draw spring element 19. Moreover, the angled part 14 includes abutments 17 for the connection to the housing 2. When viewing through the break-throughs 18, also the protecting tube 7, which is connected to one guiding part 24, becomes visible next to the end of the draw spring element 19. Projections 16, bent to the inside and provided in the area of the abutments 17 so to say form a parts connection to the housing 2. In an attachment of the dampening equipment 1 to a guiding rail via the attachments 29, a reliable retaining of the housing 2 with the device is achieved.

Via attachment screws 15, the abutment 5 is releasably connected to the connecting member 6 and thereby exchangeable. In the illustration of Figure 6, the housing 2 is not illustrated. While the guiding part 24 is illustrated on the left side of the protecting tube 7, a guiding part 23 is illustrated at the other end of the protecting tube 7. The guiding part 23 and the guiding part 24 are firmly connected to the protecting tube 7. As a draw spring has been employed in this exemplary embodiment, the protecting tube 7 is configured to be round. Both the guiding part 24 and the guiding part 23 may be inexpensively manufactured, for example from plastic material.

The connecting member 6 is connected to the protecting tube 7 by force and form closure. The connecting member 6 includes an angled part 21, at which the abutment 5 is attached. From the connecting member 6 attached to a connection 26 to the protecting tube 7 while employing a brace 27, the region for the attachment of the connecting member 6 has been enlarged via the connection 26 to the protecting tube 7.

In Figure 7, in which the device for dampening the door leaf is illustrated in a rotation, the other end of a potential attachment of the draw spring element 19 can be viewed. Herein, the draw spring element 19 is attached via a spring mount 22, which passes through the guiding part 23. This represents an inexpensive spring mount 22, and allows for a quick exchange of the draw spring element 19, for example with different door leaf sizes, during manufacturing. Thereby, the stock keeping of the terminal position dampening equipment 1 is greatly simplified.

In Figure 5, the device according to Figure 7 is completed with the surrounding housing 2. In this case, it is obvious that on account of the long-sided passage 13 in the housing 2, upon a force impacting upon the abutment 5, the protecting tube 7 with the guiding members 23, 24 performs a change of location from the resting position in translational direction within the housing 2. By applying the force via the abutment 5, the draw spring element 19 is stretched and is thereby able to absorb the occurring forces of the door leaf in the final phase of the opening procedure without any problem.

Figure 8 illustrates a modified type of the terminal position dampening equipment 1 in a further preferred embodiment. In this context, the housing 2 is identical, wherein just the draw spring element 19 is not mounted to the attachments 29. Rather, the housing terminations are executed in a shape, which results in an even simpler and more efficient stock keeping, respectively also mounting. In this case, via attachments 43, the housing 2 is attached to the essentially horizontal sections of the guiding rails or the like. On both sides, the draw spring element 19 is equipped with dampening means for reducing structure borne sound.

The end-sided formation of the housing 2 with a terminal part 36 may be seen in Figure 10. In this case, the terminal part 36 is configured such as to rest against edges of the housing 2, and simultaneously includes angled parts 39, which engage in the housing 2. This configuration achieves reliable seating and a secure placing of the terminal parts 36. A rubber element 35, the outer surface thereof being provided with a disc 34, presses against the outer surface of the terminal part 36. A nut 33, which is screwed to a connecting element 32, which is equipped with a thread 40, is tightened against the disc 34.

The sectional illustration according to Figure 11 makes this embodiment even more evident, wherein the connecting element 32 passes through the terminal part 36 with lateral play and clearance with regard to a bore 25. The part of the connecting element 32, which plunges into the housing 2, has a bore 41, into which preferably an eyelet 38 is clipped into a differently formed end of the draw spring element 19. The embodiment of said attachment of the draw spring element 19 is configured such that no contact with parts of the housing 2 may occur, thereby achieving a high degree of uncoupling structure borne sound. The sectional illustration according to Figure 11 shows the draw spring element 19 in a loaded or partially loaded position, wherein the individual windings of the draw spring element 19 have been pulled apart. The illustration of Figure 11 also reveals that a guiding part 42 in connection with the protecting tube 7 has left the end position in the area of the terminal part 36. The guiding parts 24, 42, 23 achieve a clean guiding of the protecting tube 7 within the housing 2.

Figure 10 as well shows the draw spring element 19 in a partially loaded position, wherein, at the long-sided passage 13 of the housing 2, the connecting member 6 may protrude to the outside of the housing 2. The terminal part 36 includes threaded bores 37 via which the screw connections 30 may be realized. Figure 9 shows such a connection, in which the attachment 43 with the angled part 14 thereof rests against the terminal part 36. The connection between the angled part 14 and the terminal part 36 is achieved via the screw connections 30. With the intention to guarantee adjustability here again, adjusting bores 31 are fitted into the angled part 14. So that the structure-borne uncoupling may maintain its function with the attachments 43 being in place, bores 25 are provided within the angled parts 14, which bores are so large that the rubber element 35 is able to pass therethrough, herein again with play.

In an exploded drawing Figure 12 shows again the components contained in the housing 2 and how they are functionally connected to the attachments 43. On the left side, the protecting tube 7 is equipped with the guiding part 42, wherein, on the circumference of the protecting tube 7, the connecting member 6 is non-positively and positively connected to the protruding abutment 5. The draw spring element 19 is contained within the protecting tube 7. The spring element 19 with the eyelet 28 thereof protrudes from the right side of the end of the protecting tube 7. The connecting element 32 is fitted onto the eyelet 28. The guiding part 23 equipped with the bore 25 allows for the connecting element 32 to pass therethrough with ample play on all sides, and to pass through the rubber element 35 as well as the disc 34 to be immobilized with the nut 33. In this case, immobilizing is realized against the terminal part 36. The terminal parts 36 at the end sides are insertable into the housing 2, and are mounted with the attachments 43 to an essentially horizontal extension of a guiding rail or the like.

Contrary to the known embodiments of an abutment buffer, as exemplified in the above description with the draw spring element 19, a reversed movement namely in the shape of the draw spring has been realized. Said spring may be realized analogously with a suitable elastic polymer body or else also with a shock absorber. Thus, by application of force onto the abutment 5, in longitudinal extension both the draw spring element 19 or also the polymer element or the shock absorber are extended in the extension thereof.

The terminal position dampening 1 may as well be considered as a safety equipment, for example, in the event the terminal position switching of the control of door fails, or in the event the manual forces in opening position exerted on the door leaf are too important.

List of reference numerals 1 terminal position dampening equipment 2 housing 3 termination 4 termination 5 abutment 6 connecting member 7 protecting tube 8 break-through 9 base 10 lateral wall 11 lateral wall 12 web 13 passage 14 angled part 15 attachment screws 16 projection 17 abutment 18 break-through 19 draw spring element 20 web 21 angled part 22 spring mount 23 guiding part 24 guiding part 25 bore 26 connection 27 brace 28 eyelet 29 attachment 30 screw connection 31 adjusting bore 32 connecting element 33 nut 34 disc 35 rubber element 36 terminal part 37 threaded bore 38 eyelet 39 angled part 40 thread 41 bore 42 guiding part 43 attachment

Claims

A hoisting door having a door leaf and lateral guide rails which exhibit a substantially vertical section and a substantially horizontal section with interconnecting arc sections, wherein the door leaf is positioned variably in the guide rails, where at the ends of the substantially horizontal sections of the guide rails are arranged at least one end position damping installation (1), characterized in that the end position damping installation (1) has a housing (2) with a device which is designed as a tension spring element (19), the construction of which extends in its longitudinal extension upon contact with the door leaf, where the housing (2) is provided with a square or round or rectangular cross-sectional hollow profile with a longitudinal open passage (13) for a stop (5) which is connected to the device and can be changed in the longitudinal direction of the housing (2) and that the housing ( 2) on the end side exhibit end pieces (3, 4) which exhibit fastening elements (29, 43) for impact against at least one of the guides the rails, wherein the tension spring element (19) is fixed at one end to parts of the fastening element (29, 43) and at the other end to a guide piece (23) slidable in the housing (2), and that the guide piece (23) is spaced apart by a protective tube (7) is connected to a further guide piece (24), wherein the protective tube (7) in the resting position substantially encapsulates the tension spring element (19) and the stop (5) is secured to the protective tube (7).

Lifting door according to claim 1, characterized in that the housing (2) on the end side is closed with terminals (36), wherein the attachment of the tension spring element (19) can be simultaneously carried out via the terminator (36).

Lifting door according to claim 2, characterized in that the closing piece (36) has a bore (25) through which a connecting element (32) with a thread (40) passes without clearance with clearance to all sides connected at one end to the tension spring element. (19) and at another end positions itself towards the end piece (36) and is fixed by means of a nut (33).

Lifting door according to claim 3, characterized in that an end coupling is arranged between the nut (33) and the end piece (36), preferably in the form of a rubber element (35).

Lifting door according to claims 2, 3 and 4, characterized in that the housing (2) with the end pieces (36) has a fastening element (43) on which at least one of the guide rails can be fixed.

Lifting door according to one of the preceding claims, characterized in that the housing (2) or parts of the housing (2) is provided with a coating or device which reduces structural noise.

Lift door according to one of the preceding claims, characterized in that the end position damping installation (1) can be directly or indirectly interchangeable with at least one of the substantially horizontally extending sections of the guide rails.

Lift door according to one of the preceding claims, characterized in that the arrangement of the end position damping installation (1) is interchangeable and can be adapted to the kinetic energy to be absorbed by the moving door leaf.

Lift door according to one of the preceding claims, characterized in that the tension spring element (19) is designed as a duplex spring.

Lifting door according to one of the preceding claims, characterized in that the door leaf is a component of a sectional door or a tilting door.

Lifting door according to one of the preceding claims, characterized in that the kinetic energy contained in the door leaf as a result of the opening process can be absorbed and stored by means of the device by means of the device and the stored energy in the device. by a closing process of the door leaf can be released against the door leaf.

Lift door according to one of the preceding claims, characterized in that an end position damping installation (1) of a manually operated door leaf can be used as stop buffer in the end position of the opening position.