DE8910518U1 - Panels for a sectional door - Google Patents

Description

Patent attorneys <· · " 4830 GOtersloh 1. Vennstraße 9, PO Box 24

Telephone: (0 52 41) 1 30 54

Dipwne. G.Meldau o«»&trade;

DlpL-PhysDr. H.-J.StraUß Our reference T 694

company

Walter Teckentrup Industriestrasse 27

4837 Verl-Sürenheide

Panels for a sectional door

The innovation relates to panels for a sectional door, the door leaf of which is formed from a number of such panels, hinged together, made up of an outer shell, an inner shell and a core located between them, the outer shells and inner shells of which are connected to one another at least on the upper and lower longitudinal narrow sides, with sealing strips inserted into a groove provided at least in the lower of the two longitudinal narrow sides between the upper and lower longitudinal narrow sides of two adjacent panels, which interact in pairs.

Sectional doors are provided with a door leaf composed of a number of essentially identical panels, whereby the door leaf is moved to open the door in such a way that it is deflected by approximately 90° in the area of the lintel of the door opening and in the "open position"

In the area of the deflection, the panels that are hinged together are guided along a curved path, opening the gaps between the narrow longitudinal sides of two adjacent panels. A sectional door of this type is described, for example, in DE-GM 87 10 951. The panels that are hinged together should lie as close to one another as possible in the "closed position" in order to ensure the desired tightness and to prevent accidents, for example by preventing a finger from getting into the gap between two adjacent panels. According to the teaching of DE-GM 87 10 951, this should be achieved by the panels having convex surfaces on their upper narrow longitudinal sides in vertical section, which are provided with convex surfaces on the lower narrow longitudinal sides of these panels, which are provided in vertical section concave surfaces interact in the sense of sliding against each other and avoiding the formation of gaps. Sealing strips are arranged between these longitudinal narrow sides designed in this way, which seal the panels against each other. To this end, the utility model proposes that these sealing strips are attached to both longitudinal narrow sides of two adjacent panels facing each other or to one of their longitudinal narrow sides and are drawn into the gap and folded there if necessary. This proposed design is, on the one hand, extremely complex to manufacture, and, on the other hand, the sealing strips are subjected to alternating stresses that can easily lead to premature breakage, especially if the elasticity of the sealing strip material is reduced - for example due to low outside temperatures or ageing of the material.

This is where the innovation comes in, the task of which is to propose a design of the panels of a sectional door that can be manufactured easily and economically without deviating from safety requirements and that meets the requirements for tightness.

This object is achieved by the features specified in the characterizing part of the main claim; advantageous further developments and preferred embodiments are described in the subclaims.

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The folds protruding in the plane provided by the outer shell provide a clean finish and, on the other hand, a simple, technically advantageous option for forming the groove on the long narrow sides of each of the panels to accommodate the sealing strip on the upper long narrow sides and the channels on the lower long narrow sides. The interaction of the sealing strips inserted into the grooves of the upper long narrow sides with the walls of the channels is such that when moving from the open position, in which two adjacent panels form an angle of around 60° with each other, to the closed position, the sealing lip at the free end of the sealing strip dips into the channel and there rests against the inner wall of the channel facing the inner shell, and finally, when the closed position is reached, presses in and seals at the angle between this wall facing the outer shell and the wall that runs roughly parallel to the outer shell. It goes without saying that the depth of the channel and the projection of the sealing lip of the sealing strip are coordinated. A closed visible surface is created when the outer shells have recesses in the area of the first, upper grooves, the depth of which corresponds to the thickness and the height of which corresponds at least to the height of the second lower folds. This creates an overlap which, on the one hand, improves the tightness, e.g. against driving rain, and, on the other hand, offers a calm view, especially if the outer shell is provided with transverse beads and the transverse bead-like channel formed by the recess is in its

Width corresponds to the beads of the outer shell.

The connection between the outer shell and the inner shell is made differently on the narrow longitudinal sides: The inner shell is bent towards the outer shell in the area of the narrow longitudinal sides so that it (including the narrow sides) has the shape of a drawer or a baking tray. The narrow sides are connected to each other in the conventional way. The narrow longitudinal sides are connected in such a way that

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The groove is created on the upper side and the channel on the lower side. In order to create the connection in the area of the upper longitudinal side, the free end of the outward-facing edge is provided with a fold corresponding to the first protruding fold, whereby both free ends of the folds are directed towards each other and are connected to each other. This connection can be made by folding or by welding, gluing, etc. For folding, the free edge strip of the fold of the inner shell is expediently guided into the first protruding fold of the outer shell.

Another possibility is to deform the free edge strip of the first protruding fold of the outer shell so that it forms the channel and the inner fold, which corresponds to the first protruding fold, whereby the free edge strip of the edge of the inner shell in the area of the upper longitudinal narrow card is folded with this inner fold. Finally, with regard to the foaming of the shells with a foamed core, another connection method can be considered, in which the free edge strips are

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Edge strips of the outer shell or a fold from the edge strip of the outer shell and a fold from the edge strip of the inner shell) are bent so that they extend into the area of the core and are surrounded by foam during foaming and bonded by the foam mass.

Instead of this bonding, a screw connection can also be used, whereby the screw connection of the screwed hinges between two adjacent panels is used. Apart from the fact that the inner shell is backed with a reinforcing strip in the area of the hinge screw connection, this type of shell connection achieves a special stiffening which also affects the hinge fastening.

The same applies to the connection between the outer shell and the inner shell in the area of the lower longitudinal narrow side: the edge strip of the inner shell is folded over towards the outer shell and then folded back again at a right angle to form the channel, so that this part of the edge strip, which forms the wall of the channel facing the inside, runs parallel to the inner shell. In accordance with the channel tip, the edge strip is then folded over towards the outer shell and back again at a right angle to form the channel.

tet, in order to finally run parallel to the outer shell into its lower, second protruding fold and to be connected to the outer shell by this fold connection. The cross-section of the channel is advantageously trapezoidal, so that the height of the inner side wall is greater than that of the outer side wall facing the outer shell. Another possibility for fastening is that the edge strip forming the lower, second protruding fold of the outer shell is folded towards the inner shell in accordance with the cross-sectional shape of the channel and the free edge strip of the inner shell is folded towards the outer shell at the connection to the inner side wall and both edge strips are connected to one another in the area of the channel boundary by welding, gluing or the like. Finally, it is also possible, especially with panels that are foamed in to form the core, to fold the free edge strips of the inner shells over to form the inner channel wall that runs parallel to the inner shell and to let them run into the core area, as well as the free edge strips of the outer shell that form the outer channel side and the upper channel side. When foaming, the two free edge strips of each panel that are parallel and close to each other are then foamed and, if necessary, glued together using the foam material. For extra reinforcement, a screw connection can also be provided here that works together with the hinge screw connection.

A special detail lies in the sealing strip: The groove, which is advantageously designed in the shape of a harpoon bar for better anchoring in the groove, is followed by the protruding sealing lip, which is opposite the

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Foot has a projection directed towards the plane of the outer shell. The thickness of this projection corresponds to the thickness of the first upper fold; this ensures "alignment" with the outside of this fold and therefore also with the plane of the outer shell or with the recess of the outer shell in the area of this fold. The outer contour of the

The sealing lip is attached to this projection at an angle so that it can safely enter the groove of the preceding panel. Its length is advantageously designed so that the largest gap width occurring in the area of the deflection of the panels is covered; the gap occurring there is thus secured against interference.

The nature of the innovation is explained in more detail using the examples shown in Figures 1 to 7;

- Figure 1 is a schematic perspective view of two interconnected panels in a door leaf,

- Figure 2 a panel of a door leaf with connected

adjacent panels, the lower panel in the closed position, the upper one in transition to the open position,

- Figure 3 Detail panels according to Figure 2,

- Figure 4 Detail of panels according to Figure 2, but with

the connection between the inner and outer shell.

- Figure 5 Detail of panels according to Figure 2, but with

the connection between the inner and outer shell,

- Figure 6 Detail of panels according to Figure 2, but with a different connection between the inner and outer shell,

- Figure 7 Detail of sealing strip.

Figure 1 shows a perspective section of a door leaf of a sectional door. The door leaf 1 is made up of a number of panels 2 arranged one above the other (or next to each other in the open position), which are each connected to each other in pairs by their upper longitudinal narrow edges 2 (Fig. 3) and their lower longitudinal narrow edges 4 (Fig. "). When the door is opened, the panels run through a curved path, where

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when the panel 2 located in the area of this curve is moved from the vertical closed position to the horizontal open position. The panels are delimited by an outer shell 10 and an inner shell 20, with the space between the shells being filled with a core 5. The articulation takes place by means of the hinges 8 (Fig. 3), with continuous hinge reinforcements 8.1, which are inserted under the inner shell, forming the reinforcing elements necessary for the transmission of the acting forces. The outer shell 10 has transverse beads 10', which also serve to stiffen it. The upper longitudinal narrow side 3 (Fig. 3) is provided with a sealing strip 7 inserted into a groove 6 (Fig. 3) formed by an outer fold 11 and an inner fold 15 (or 22, Fig. 3, 4), which engages in a channel 26 provided in the lower longitudinal narrow side 4. A lower fold 13 closes off the panel 2 at the bottom and limits the channel 26 to the outside. In order to be able to bring these lower folds 13 into contact with the outer shells 10 of the adjacent subsequent panels, they are each provided with a recess 19 in the area of the first, upper fold, which accommodates the lower fold 13 of the preceding panel. The depth of the recess 19 corresponds to the thickness of the lower fold 13, the height of the recess is advantageously selected so that when the lower fold 13 is applied, a recess corresponding to the width of the existing transverse beads 10' remains.

Figure 2 shows a section through one of the panels 2, to which (broken off) neighboring panels 2 are hinged on both sides. Each of the panels 2 consists of the outer shell 10 and the inner shell 20, between which the core 5 is arranged. In the area of the longitudinal narrow sides 3, 4 (Fig. 3), both shells are shaped or connected to one another in such a way that in the area of the upper longitudinal narrow side 3 a groove 6 (Fig. 3) is formed which receives the sealing strip 7 and is formed from the first upper fold 11 of the outer shell and a second upper fold 15, which is essentially the same as the first, while in the area of the lower longitudinal narrow side a channel 26 is formed which interacts with the sealing strip 7 of the following panels 2 and is delimited from the outer shell 10 by a lower fold 13. 35

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If the panels are in the closed position - linkage shown below -, the sealing lip 7.1 of the sealing strip 7 rests against an inner sealing edge 26.1 in the base of the channel 26. The linkage itself is effected by hinges 8 attached to the inside of the panels, which are firmly connected with screw connections 9 to the inner shell 20 or to reinforcing inserts 8.1 arranged beneath it.

Figures 3 to 4 show details of panels 2 with different shapes and connections between the inner shells 20 and the |

]q Outer shells 10. In Figure 3, the outer shell 11 is essentially flat apart from the recess 19 and any transverse beads that may be present, while the inner shell 20 is provided with folded edges 21 and 25 pointing towards the outer shell 10 in the area of the upper and lower longitudinal narrow sides Z and 4 respectively. The folded edge 21 in the area of the upper longitudinal narrow side 3 is formed into a fold 22 which corresponds to the first upper fold 11 of the outer shell, and the free edge strip 23 of the folded edge 21 of the inner shell is folded with this first upper fold 11, with the groove 6 which is laterally delimited by the folds 11 and 22 and which receives the sealing strip 7 (Fig. 2) being arranged between the folds 11 and 22. In the area of the lower longitudinal narrow side 4, a corresponding deformation A of the edging 25 of the inner shell 20 present there is provided: By | edging, the channel 26 with a trapezoidal cross-section is created. The free | edge strip 27 forms the slope | of the trapezoid inclined towards the outer shell 10 and is folded with the lower fold 13 of the outer shell 10.

The connection between the outer shell 10 and the inner shell 20 shown in Figure 4 corresponds in the area of the lower longitudinal narrow side 4 to that shown in Figure 3. In the area of the upper longitudinal narrow side 3, however, the connection of the two shells is designed such that the free edge strip 23 of the inner shell 20 ends in the area of the channel 6 and is connected there to a free edge strip 12 of the outer shell 10, which extends beyond the first upper fold 11.

The connection shown in Figure 5 has in the area of the

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The groove 26 located on the lower longitudinal narrow side 4 has an overlap of the free edge strip 27 of the bevel 25 of the inner shell 20 and a free edge strip 17 adjoining the lower fold 13 of the outer shell 10, the edge strips being connected to one another in the overlap region I &sfgr;.

% Finally, Figure 6 shows a variant that is suitable for panels 2 with

^: foamed core 5 of particular interest is: üier sir.d the free

I Edge strips 17 of the outer shell 10 and the inner strip 20 in the areas

j _into the core 5 and turn the two shells 10 and 20

.? over their free edge strips 12 and 23 in the area of the upper longitudinal

I narrow side 3 or üter their free edge strips ü and 27 in the area I the lower longitudinal side *held together with the core. I which frees this edge strip with capturing screw connection 9 of the joint I ₁₅ kidney 8 - as in the area uqt upper. ! Sngs narrow side 3 in connection with

p the free edge strips 12 and 23 indicated with 9 ¹ - the cohesion

i. For cores that are foamed in situ, this combination

e The holding of all shell connections also by the

k-, foaming forces that lead to a "jamming" of the connections

;i; _20. In addition, the not yet fully foamed mass exerts

j; an adhesive effect. It goes without saying that for all pa-

\ neelen the short narrow sides are connected in the usual way

! which does not affect the special connection forms of the narrow longitudinal sides.

Figure 7 shows a cross-section through the sealing strip 7. The sealing strip 7 is inserted with its foot 7.2 into the groove 6 (Fig. 3) and is held there by elastic deformation of the harpoon-shaped foot 7.2, whereby a longitudinal

_ ₀ Slot 7.4 increases the flexibility and facilitates the insertion of the sealing strip into the groove 6. The sealing lip 7.1 is at an angle from the foot 7.2 to the inner shell in such a way that it runs smoothly past the lower fold 13 into or out of the groove 26 during the transition from the open position to the closed position or vice versa. Its length is

_? r is adjusted to the depth of the channel 26 so that the sealing edge of the

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Sealing lip 7.1 finally rests against the sealing edge 26.1 provided at the bottom of the channel 26. The transition from the foot 7.2 to the sealing lip has a nose 7.3 directed towards the outer shell 10, which corresponds to the thickness of the first upper fold 11 and which lies over the fold line. This design ensures that

The risk of crushing in the gap between two panels is prevented. On the other hand, reliable sealing is ensured, with the shells being designed in a way that can be produced economically using conventional sheet metal forming methods. 10

Claims (9)

Schut ''claims 1. Panels for a sectional door, the door leaf of which is formed from a number of such panels, hinged together, made up of an outer shell, an inner shell and a core located between them, the outer shells and inner shells of which are connected to one another at least on the upper and lower longitudinal narrow sides, sealing strips inserted into a groove provided at least in the lower of the two longitudinal narrow sides are arranged between the upper and lower longitudinal narrow sides of two adjacent panels, characterized in that the essentially flat outer shells (10) of the panels (2) have first projecting folds (11) at their upper ends and second projecting folds (15) at their lower ends, the first projecting folds (13) delimiting the grooves (6) to the outer shells (10), that the inner shells (20) of the panels (2) have at least in the area of the upper and lower longitudinal narrow sides (3,4) have edgings (21,25) directed towards the outer shells (10), the free edge strips (23,27) of which are connected to the outer shells (10), the edgings (25) arranged in the area of the lower narrow sides (4) having recessed free edge strips (27) which, in conjunction with the second protruding folds (13) of the outer shells (10), form grooves (26) directed into the area of the cores (3), and that the sealing means are designed as sealing strips (6) extending in the longitudinal direction of the panels (2) with feet (7) inserted into the grooves (12) and onto which elastic sealing lips (8,9) are formed. - 2 - T694 2. Panels according to claim 1, characterized in that the outer sides (10) in the region of the first projecting folds (11) have recesses (19) whose depth corresponds approximately to the thickness and whose height corresponds at least to the height of the second projecting folds (13) of the outer shell. 1 3. Panels according to claim 1 or 2, characterized in that the ' free edge strips (23) of the edges (23) of the inner shells (20) arranged in the region of the upper longitudinal narrow sides (3) with the first protruding folds (13) of the outer shells _ _; (&iacgr;&ogr;) corresponding folds (22) which are arranged in pairs together form the grooves (6), whereby the free edge strips (12,23) in the region of the grooves (6) are connected to one another preferably by interlocking. 4. Panels according to claim 3, characterized in that the free _edge strips (12,23) of the outer and inner shells (10,20) are connected to one another in the region of the grooves (6) by adhesives, welds or the like. 5. Panels according to claim 1 or 2, characterized in that in the Area of the upper longitudinal narrow sides (3), the free edge strips (12) of the outer shells (10) each have a further fold (15) at a distance from the first protruding folds and 4 both folds form the grooves (6) and the | (&iacgr;&ogr;) directed free edge strips (12) outside the grooves &idigr; (6) with the free edges directed towards the outer shells (20); strips (23) of the edges (21) of the inner shells (20) | are bound. | 6. Panels according to claim 5, characterized in that the free | Edge strips (12,23) are folded together. I 7. Panels according to claim 5, characterized in that the free- 1 - 3 - t694 r edge strips (12,23) inwards into the areas of the cores (3) are bent in a directionally aligned manner and are connected to one another by gluing, welding or similar. 8. Panels according to claim 5, characterized in that the free-IQ edge strips (12,23) extend inwards into the areas of the cores (3) are bent in a direction and are connected to one another by screw connections, preferably with the hinge screw connection (9). ! ₅ 9. Panels according to one of claims 1 to 8, characterized in that in the region of the lower longitudinal narrow sides (4) the free edge strips (27) of the edges (25) of the inner shells (20) of each panel (2) are bent approximately at right angles to the region of their cores (5) and this bent together 2Q with the second protruding folds (13) of the outer shell (10) n: /oc\ UJiJ-- -·_ j:. u_j u &igr;&tgr;.-kl.ii /i\ ,'i*. n. I MItCIl \C\J) LM IUCII , I Il UIC UC I UC3l.ll IU3 3CIICIII IUIUIOU \ IJ \-IC Sealing strip is immersed in a sealing manner. 10.Panels according to claim 9, characterized in that the grooves (26) are delimited towards the cores (3) by inclined surfaces which rise towards the inner shells (20), these inclined surfaces being formed by the free edge strips (17) of the second ^projecting folds (13) of the outer shells (10) or by the free edge strips (27) of the edges (25) of the inner shells (20) · 11.Panels according to claim 10, characterized in that the free edge strips (27) of the inner shell (20) form the inclined surfaces of the channels (6) and are connected at their free ends to the second or projecting folds (13) of the outer shell by interlocking are connected. - 4 - T694 12.Panels according to claim 10, characterized in that the free edge strips (17) of the second projecting folds (13) of the outer shells (10) form the inclined surfaces of the channels (26) and are connected in the region of the channel to the free edge strips (27) of the edgings (25) by gluing, welding or the like. n.r'aneele according to claim 10, characterized in that the free edge strips (17) of the second protruding folds (13) of the outer shells (10) form the inclined surfaces of the grooves (26) and the free ends of these edge strips and the free ends of the edge strips (27) of the edges (25) of the inner shells (20) folded at right angles are continued into the areas of the cores (5), where they are connected by means of foaming, gluing, welding or the like. 14. Panel according to one of claims 1 to 13, characterized in that the sealing strip (7) designed as an extruded plastic profile has a preferably harpoon-like foot (7.2) to which the sealing lip (7.1) is connected with a projection (7.3) directed towards the outer shell (10), whereby the direction of the sealing lip (7.1) forms an angle of at least 30° with the centre of the foot (7.2).