EP2682554B1 - Panel for producing a sectional door leaf and method for manufacturing a panel - Google Patents

Description

The invention relates to a sectional door leaf according to the preamble of patent claim 1 and a method for producing such a panel for a door leaf of such a sectional door.

Sectional doors have a door leaf which is movable along a predetermined path between a closed position and an open position and which comprises interconnected components or sectional door panels of a plurality of joints arranged one behind the other along the predetermined path and having articulation axes extending perpendicularly to the predetermined path. In the following, the Gelenkachsrichtung is referred to as the longitudinal direction of the panels.

During the Torblattbewegung along the generally predetermined by a guide rail assembly and having at least one arcuate portion Path takes place a pivoting movement between adjacent Sektionaltorpanenelen. In order to avoid the formation of a finger-permitting gap between the edges of the adjacent panels in the course of this pivoting movement, the panels are usually provided with special edge profiles. Such edge profiles are, for example, in the EP-A-0 304 642 and the EP-A-0 370 376 specified. In the following, corresponding edge profiles are referred to as finger protection profiles. The disclosure of the cited documents is hereby incorporated by reference herein expressly with regard to the shape of the edge profiles or finger protection profiles of individual sectional door panels of a door leaf for a sectional door.

As explained in the cited documents, the outer surfaces of the individual panels usually have a profiling or embossing, with which determines the overall visual impression of the door and the stability of the door leaf is improved.

Sectional doors are commonly used for closing openings in exterior walls of buildings. In many cases, it is important to ensure a satisfactory thermal insulation when the door is closed. For this purpose, the components or sectional door panels used for the production of sectional doors usually have an insulating body which bears against an inner boundary surface of the metal shell forming the outer boundary surface of the component. This insulating body is usually fixed by an edge profile designed in one piece with the shell in its position relative to the shell. In addition, the insulating body can also be covered on its side facing away from the shell boundary surface of a cover, so as to avoid damage to the insulator. Corresponding Sektionaltorpaneele are, for example, in the EP-A-0 304 642 specified. In these known sectional door panels extending in each case in the direction of the opposite shell transition areas at the upper and lower edges of the individual shells are provided. They are made in one piece with the shells, wherein each transition region additionally also has an approximately parallel to the outer boundary surface of the shell extending edge lug, which is foamed into the insulating body.

In order to produce the outer and inner shell of these known panels, a steel strip withdrawn from a supply roll passes through a shaping device, such as a roll former, with a number of along a predetermined conveying path arranged one after the other and approximately perpendicular to the plane Conveyor extending axes of rotation rotatable forming rollers. In the so equipped with appropriate transition areas and resting on the outer boundary surface outer shell a the insulating body in the form of insulating foam, esp. Polyurethane foam, forming liquid is filled. The outer shell is then covered with the inner shell while the foam is being formed. In this case, the insulating foam forming liquid can be sprayed by stationary application nozzles on the intermediate product in the form of the outer shell, wherein the sprayed per time amount of liquid is controlled in dependence on the conveying speed of the shells.

In this context, it has proved to be useful when covered with the inner shell of the outer boundary surface of the shell facing away boundary surface of the insulator, because with such an inner shell uncontrolled foaming of the insulating foam forming liquid can be prevented. For this purpose, a flat inner shell of the type described above is suitably used, which extends substantially parallel to the outer surface of the intermediate product and immediately after the application of the insulating foam forming liquid is attached. To avoid undesirable deformation of the inner and outer shell, it has proven to be expedient if the inner and outer shell are conveyed after attachment of the cover along a predetermined curing distance between two guide elements, one of which on the outer boundary surface of the outer shell and the other the inner boundary surface of the inner shell rests.

In the course of the foaming process, the edge lugs formed at the transition areas of the shells are foamed by the insulating foam. In this way, the shells are held together by means of insulating foam. If this ensures that the transition areas of the shells are arranged without contact so that a predetermined distance between them and esp. Respect between the marginal flags the formation of metallic thermal bridges between the shells can be avoided. However, it has been shown that the production of the components just described while maintaining a predetermined distance between the transition areas and simultaneously ensuring the compliance with the usually desired finger protection tolerance limits is associated with a lot of effort.

For this reason, it has gone over to renounce the thermal separation between the shells, the edge profiles of the Sektionaltorpaneele complete integral with the outer shell, such that the transition regions formed on the outer shells completely overlap the corresponding Isolierkörperrand. In the production of corresponding Sektionaltorpaneele the foam-forming liquid is filled in the previously provided with the transition areas outer shell, a cover assembly on the outer boundary surface of the outer shell facing away edges of the finger protection profiles or transition areas clipped and kept the arrangement thus produced between two pressure belts, until the foaming is complete. Subsequently, the components of the continuous strip formed by the profiled steel strips are cut to predetermined lengths. Corresponding Sektionaltorpaneele are, for example, in the EP-A-0 370 376 described.

Although these sectional panels can be manufactured with high manufacturing accuracy and comparatively low production costs, it has proven to be problematic here that a desired insulation effect is difficult to achieve.

In the face of these problems will be in the DE 10 2007 004 081 A1 a method for producing Sektionaltorpaneelen indicated, in which the transition regions of the outer shell after completion of an example. According to EP-A-0 370 376 formed panel, ie, after formation of a Isolierschaums therein and cover the insulating foam with a suitable covering, the cross-sectional area in at least one parallel to the outer surface extending cutting plane reducing weakening be subjected, so as to improve the insulating properties of corresponding components. With this known method, an edge of the insulating body completely cross transition area can be prepared and the device can be prepared using this edge profile, the material weakening after mounting of the insulating body takes place at the transition region or the shell. When using appropriate panels, however, it has been shown that the weakening of the transition areas leads to a poor stability of the overall product. Sectional doors according to the preamble of claim 1 are in the EP 1 213 439 A1 specified. With Isolierschaum filled Sektionaltorpaneele are in the US 5,170,832 and the WO 2008/138417 A1 specified.

In view of these problems in the prior art, the invention has for its object to provide a sectional door of the type mentioned, which can be produced while ensuring sufficient insulation properties and good overall stability without undue expense, and to provide a corresponding manufacturing method.

According to the invention this object is achieved by the specified in the characterizing part of claim 1 development of the known sectional doors.

This invention is based on the knowledge that according to the state of the art EP-A-0 304 642 observed problems with respect to compliance with the required to obtain the desired finger protection effect tolerance limits primarily due to the fact that the expansion of the polyurethane foam is not fully completed even after leaving the production line. The (minor) expansion of the foam during transport and storage of appropriate products causes the edge lugs and thus the entire transition areas of the individual shells of the panels undergo a deformation that affects the finger protection effect and partially obstructs the installation of corresponding sectional doors.

WO 2011/147428 A1 discloses a sectional door with sectional door leaves according to the preamble of claim 1.

Surprisingly, this undesirable deformation can be prevented according to the invention by providing a simple material strip of thermally insulating material, such as a plastic strip, esp. Self-adhesive plastic tape or adhesive tape, with which the mutually facing edges of the transition areas are connected. A corresponding strip of material can be deducted without much effort from a winding of the tape and on the edges of the transition areas, for example. With the help of suitable contour rollers, are pressed so as to, for example. Under Using a "pressure-sensitive adhesive " on the material web to produce a material connection between the material web and the mutually facing edges of the transition areas, which is sufficient to avoid the undesirable deformation.

Like in the EP-A-0 370 376 described in detail, it has proved to be beneficial if the individual panels of a sectional door supported each other in the closed state of the door leaf. In this context, it is provided in the context of the invention that the upper and / or the lower transition region of the inner shell has a support zone extending parallel to the longitudinal direction of the panel and perpendicular to an inner boundary surface. When two similar panels are stacked, the upper panel may be supported by the support zone of its lower transition region on the support zone of the upper transition region of the lower panel. The transition areas are made in one piece with the inner shell. This has proved to be particularly useful for static reasons, when the outer shells have transition areas which are arched or polygonal curved, so as to bring about the desired finger protection effect.

In the context of the invention it is provided that the support zone of the inner shell are connected to an inclined, the desired polygonal contour of the finger protection profiles replicating material web with the edges of the transition regions of the outer shell. It is provided that a surface normal to the insulating material web includes an inclination angle of less than 90 °, preferably 60 ° or less, esp. 50 ° or less, with a surface normal to the nearest support zone of the inner shell, wherein the desired polygonal structure then can be achieved without excessive production costs, if the inclination angle 20 ° or more, preferably 30 ° or more, esp. 40 ° or more, has.

To stabilize the shells, it has proven to be expedient if at least one edge of at least one transitional area is folded back onto itself. As a result, not only stabilization of the shells themselves, but also a balance of the manufacturing tolerances of the metal strips used for the production of the shells can be achieved.

To continue the polygonal edge contour ensuring the desired finger protection, it has proved expedient if the edge of the upper and / or lower transition region of the outer shell merges in the direction of the outer boundary surface into a substantially flat connection region, the surface normal to the material web Angle of less than 90 °, preferably 60 ° or less, in particular 50 ° or less, but 20 ° or more, esp. 30 ° or more, includes with the surface normal to the connection area.

To further improve the insulating effect and to prevent the ingress of moisture from the outer boundary surface in the direction of the inner boundary surface, it has proven to be expedient that in the connection region extending in the longitudinal direction of the panel groove is formed with a sealing strip received therein. Additionally or alternatively, between the support zone at the upper transition region of the inner shell and the material web extending in the longitudinal direction of the panel and designed to receive a sealing strip groove may be formed.

It has already been explained in detail that in the area of the transition between individual panels of a sectional door leaf, a finger protection effect is regularly sought. In addition it has to the reproduction of in the EP-A-0 370 376 described finger protection profiles proved to be expedient if the upper transition region of the outer shell forms together with the upper transition region of the inner shell and the transition areas connecting these webs a extending in the longitudinal direction of the panel projection which is approximately complementary to a recess, that of the lower transition region the outer shell is determined together with the lower transition region of the inner shell and the material web connecting these transition regions, whereby a finger guard for two successive and with respect to a parallel to the longitudinal direction of the panel pivot axis pivotally interconnected panels is created by the projection received in the recess.

As is apparent from the above explanation of conventional panels, the desired insulating effect can be ensured particularly reliable when the between The shells formed cavity is at least partially filled with an insulating material, such as a foam, esp. PU foam.

As can be seen from the above explanation, a sectional door leaf of a sectional door according to the invention has a number of successively arranged in Torblattbewegungsrichtung panels, which are connected to each other perpendicular to the door leaf movement direction and extending longitudinal axes of the panels hinged together, at least one of these panels is designed according to the invention , An inventive sectional door has a corresponding Sektionaltorblatt and guide rails for guiding the Torblattbewegung between an open position in which the door leaf is preferably arranged above the head in a horizontal plane, and a closed position in which the door leaf is preferably arranged approximately in a vertical plane on. The guide rails expediently have a guide rail section which runs in a straight line, approximately in the direction of gravity, a guide rail section running in a straight line, approximately in the horizontal direction, and an arcuate guide rail section connecting the two straight sections.

In a method according to the invention for producing a panel according to the invention, a shell resting on its boundary surface and consisting at least partly of a metallic material, in particular the outer shell, is charged with a preferably liquid material forming an insulating foam and the other shell, esp inner shell, positioned at a predetermined distance above the shell resting on its boundary surface, that the edges of the transition regions of the shell facing each other, wherein the inventive method is characterized essentially by the fact that the opposite edges of the transition regions of the shells before completion of foaming of the material forming the insulating foam are connected to one another with a material web of insulating material, wherein the connection can be effected particularly simply if the material web is designed as a self-adhesive adhesive tape t is, for example, with a " pressure-sensitive adhesive" is coated.

As part of a continuous manufacturing process, the shells, which are at least partially made of a metallic material, can be conveyed longitudinally during the charging with the foam-forming material, the positioning and / or the bonding with the material web and, if necessary, for the production of panels after foaming to a predetermined length get cut.

In order to maintain the desired manufacturing accuracy, the transition regions of the shells positioned at a predetermined distance may at least partially be accommodated during foaming in a positioning device whose shape is adapted to the shape of the transition regions, esp. The known finger protection profiles can correspond.

In this case, the positioning device may be embodied in the form of at least one endlessly circulating positioning chain which is conveyed together with the shells, wherein the individual chain links of the positioning chain are profiled laterally on their edges facing the transition areas or the panel according to the transition regions or finger protection profiles.

The deflection of the shells during the manufacturing process can be effectively prevented if the shell to be positioned at a predetermined distance with respect to the resting on the boundary surface shell is held with acting on its boundary surface, preferably with magnetic and / or pneumatic holding means in position.

A controlled foaming can be achieved with a compact manufacturing plant, when the shell to be positioned is lowered along a predetermined path onto the resting on its boundary surface metal shell and the foam-forming material is introduced with a arranged in the Absenkbereich between the shells feeder.

Fig. 1

eine Schnittdarstellung eines Sektionaltorblatts im Übergangsbereich zwischen zwei aufeinanderfolgenden Paneelen längs einer senkrecht zu den Gelenkachsen der die Paneele miteinander verbindenden Gelenke geführten Schnittebene gemäß einer ersten Ausführungsform der Erfindung,

Fig. 2

eine der Fig. 1 entsprechende Schnittdarstellung einer zweiten Ausführungsform der Erfindung,

Fig. 3

eine der Fig. 1 entsprechende Schnittdarstellung einer dritten Ausführungsform der Erfindung,

Fig. 4

eine der Fig. 1 entsprechende Schnittdarstellung einer vierten Ausführungsform der Erfindung,

Fig. 5

obere Übergangsbereiche einer fünften Ausführungsform der Erfindung und

Fig. 6

obere Übergangsbereiche einer sechsten Ausführungsform der Erfindung.

The invention will be explained with reference to the drawing, to which reference is expressly made with regard to all essential to the invention and in the description not further highlighted details. In the drawing shows:

Fig. 1

1 is a sectional view of a sectional sheet in the transition region between two successive panels along a sectional plane guided perpendicular to the joint axes of the joints interconnecting the panels according to a first embodiment of the invention;

Fig. 2

one of the Fig. 1 corresponding sectional view of a second embodiment of the invention,

Fig. 3

one of the Fig. 1 corresponding sectional view of a third embodiment of the invention,

Fig. 4

one of the Fig. 1 corresponding sectional view of a fourth embodiment of the invention,

Fig. 5

upper transition regions of a fifth embodiment of the invention and

Fig. 6

upper transition areas of a sixth embodiment of the invention.

The panels of in Fig. 1 illustrated embodiment of the invention comprises an outer peripheral surface 110 of the Sektionaltorblatts forming outer shell 100, an inner boundary surface 210 of the Sektionaltorblatts forming inner shell 200 and material webs 300 of an insulating material, with which mutually facing edges of transition areas 150, 190, 250, 290th the shells 100, 200 are interconnected.

The outer shell 100 has, at its upper edge, a transition region extending in the direction of the inner shell 200, which is indicated as a whole by 150. This transition region 150 comprises, adjacent to the outer boundary surface 110, a step portion 120 extending towards the inner shell 200, a bottom portion 130 approximately parallel to the outer boundary surface 110, and a connection portion 140, with a normal to the bottom portion 130 at an angle of less than 30 ° with a surface normal on the connection area 140 includes. In the connecting region 140, a groove 142 is formed, in which a sealing strip 145 is received.

The inner boundary surface 210 of the inner shell 200 merges via an indentation 212 into a support zone 230, which extends approximately parallel to the longitudinal direction of the panels and perpendicular to the inner boundary surface 210. The support zone 230 drops down towards the edge of the connection region 140 of the outer shell 100 facing it and is folded back on itself at 232. Similarly, the rim 232 facing the edge of the connecting portion 140 is folded back on itself at 144 so as to obtain a stabilization of the transition regions 150, 250, 190, 290.

The edge regions 144 and 232 are connected to each other via a material web 300 of thermally insulating material. The material web 300 is embodied in the embodiment of the invention shown in the drawing as a self-adhesive plastic material web or plastic film or plastic tape. A surface normal to the edges 232 and 144 interconnecting material web 300 includes with a surface normal to the support zone 230 an angle of less than 45 °. Likewise, the surface normal to the material web 300 with a surface normal to the connecting region 140 of the upper transition region 150 of the outer shell 100 encloses an angle of less than 45 °.

The transition region 190 at the lower edge of the outer shell 100 essentially comprises a downwardly facing nose 160, which merges towards the inner shell 200 into a sealing region 170, the inner shell 200 facing edge 172 folded back on itself for the purpose of stabilization is. Between the step region 120, the bottom region 130 and the nose region 160, a bead-like structure is reproduced, wherein the height of the bead is more than 10 mm, esp. More than 15 mm, so that a finger trapping between the nose region 160 and the step portion 120 excluded is.

The transition region 290 formed at the lower edge of the inner shell 200 essentially comprises a projection 340, which engages in the indentation 212 and which projects into a supporting zone 270 extending parallel to the supporting zone 230 in the door leaf closing position goes over, the outer shell 100 facing edge 272 is folded back on itself. The inner shell 200 facing edge 172 at the transition region 190 is connected via a material web 300 of an insulating material with the outer shell 100 facing edge 272 of the support zone 270. The edge profiles of the panels formed by the transitional areas 150, 190, 250, 290 and the material webs 300 of an insulating material correspond to the edge profiles in terms of their contour and finger protection effect EP-A-370,376 , to the disclosure of which reference is made.

In addition, it should be noted that in the region of its inner boundary surface 210, the inner shell 200 has a plurality of self-fold, triple-thickness attachment regions 280, which are intended for securing hinges to the panels interconnecting the panels.

The in the Fig. 2 to 4 illustrated embodiments of the invention differ essentially by the basis of the Fig. 1 explained embodiment that the support zone 220 on its side facing the outer shell 100 side merges into a groove 400, in turn, a sealing strip 410 is received, wherein the shape of the grooves and sealing strips according to the Fig. 2 to 4 can be made variable. The additional profiling of the upper transition region 250 of the inner shell 200, a stabilization is achieved, which counteracts deformation of the panel under the load of a resting panel thereon. Similar profiles are also in the in the FIGS. 5 and 6 recognizable upper transition regions 250 of the inner shell 200 recognizable.

According to Fig. 7 can be attached to the lower transition region 290 of the inner shell 200, a mounting rail 600 for a bottom seal, which is without thermal contact with the outer shell 100 can be installed, so that the insulating effect is not affected by the mounting rail 600 of the bottom seal.

The invention is not limited to the embodiments explained with reference to the drawing. Rather, is also to the attachment of the web of insulating Material intended at the transition areas with mechanical fasteners. Furthermore, arcuate or otherwise executed wall profiles can be used.

Claims (15)

1. A sectional door that has a sectional door leaf and guide rails for guiding the movement of the door leaf between an open position, in which the door leaf is preferably positioned overhead in a horizontal plane, and a closed position, in which it is positioned in a vertical plane, the sectional door leaf having two uniform panels positioned one over the other in the closed position of the door leaf and equipped with polygonal or finger protection profiles curved in an arched shape, each end of which panels has an outer shell (100) forming an outer boundary surface (110) of the sectional door leaf and made at least partially of a metallic material, and an inner shell (200) forming an inner boundary surface (210) of the sectional door leaf running approximately parallel to the outer boundary surface (110) and made at least partially of a metallic material, the outer shell (100) having an upper (150) and/or a lower (190) cross-over region extending towards the inner shell (200) and in the longitudinal direction of the panel, and the inner shell (200) having an upper (250) and/or a lower (290) cross-over region respectively extending towards the outer shell (100) and in the longitudinal direction of the panel, and the edges (144, 232, 172, 272) of the cross-over regions facing one another being spaced apart from one another, the upper (290) and the lower (250) cross-over region of the inner shell (200) having a supporting zone (230, 270) running parallel to the longitudinal direction of the panel and perpendicular to the inner boundary surface (210), and the upper panel being able to be supported by the supporting zone of its lower cross-over region on the supporting zone of the upper cross-over region of the lower panel, characterised in that an edge (144, 172) of at least one cross-over region (150, 190) of the outer shell (100) is connected by an optionally self-adhesive material strip (300) made of thermally insulating material extending over approximately the entire length of the panel is connected to an edge (232, 272) facing the latter of a cross-over region (250, 290) of the inner shell (200), and that the finger protection profiles comprise the cross-over regions and the material strip replicating the polygonal contour of the finger protection profiles is made to slope such that a surface normal onto the material strip (300) encloses an angle of inclination of less than 90°, preferably 60° or less, in particular 50° or less with a surface normal onto the closest supporting zone (220, 230, 270, 350).
2. The sectional door according to Claim 1, characterised in that the angle of inclination is 20° or more, preferably 30° or more, in particular 40° or more.
3. The sectional door according to any of the preceding claims, characterised in that at least one edge (144, 232, 172, 272) of at least one cross-over region (150, 190, 250, 290) is folded back on itself.
4. The sectional door according to any of the preceding claims, characterised in that the edge (144, 172) of the upper (190) and/or the lower (150) cross-over region of the outer shell (100) passes towards the outer boundary surface (110) into a substantially level connection region (140), the surface normal onto the material strip (300) enclosing an angle of less than 90°, preferably 60° or less, in particular 50° or less, but 20° or more, in particular 30° or more, with the surface normal onto the connection region (140).
5. The sectional door according to Claim 4, characterised in that a groove (142) extending in the longitudinal direction of the panel with a seal accommodated therein is formed in the connection region (140).
6. The sectional door according to any of the preceding claims, characterised in that a groove (400) extending in the longitudinal direction of the panel and designed to accommodate a sealing strip (410) is formed between the supporting zone (270) at the upper cross-over region (290) of the inner shell (200) and the material strip (300).
7. The sectional door according to any of the preceding claims, characterised in that the upper cross-over region (150) of the outer shell (100) together with the upper cross-over region (250) of the inner shell (200) and the material strip (300) connecting these cross-over regions (150, 250) forms a projection (340) extending in the longitudinal direction of the panel, which projection is designed to approximately complement a recess that is determined by the lower cross-over region (190) of the outer shell (100) together with the lower cross-over region (290) of the inner shell (200) and the material strip (300) connecting these cross-over regions (190, 290).
8. The sectional door according to Claim 7, characterised in that a finger protector for two consecutive panels connected to one another pivotably in relation to a swivel axis running parallel to the longitudinal direction of the panels is created by the projection (340) accommodated in the recess.
9. The sectional door according to any of the preceding claims, characterised in that a cavity formed between the shells (100, 200) is filled at least partially with an insulating material, such as for example a foam, in particular PU foam.
10. A method for producing a panel for a sectional door according to any of Claims 1 to 9, wherein a shell (100, 200) lying on its boundary surface (110, 210), in particular the outer shell (100), is filled with a preferably liquid material forming an insulating foam, and the other shell, in particular the inner shell (210), is positioned a pre-specified distance above the shell lying on its boundary surface (110, 210) such that the edges (144, 232, 172, 272) of the cross-over regions (150, 190, 250, 290) of the shells (100, 200) are facing one another, and the opposing edges (144, 232, 172, 272) of the shells (100, 200) are connected to one another with a material strip (300) made of insulating material before the foam formation of the material that forms the insulating foam.
11. The method according to Claim 10, characterised in that during filling with the foam-forming material, the positioning and/or the connecting, the shells (100, 200) are conveyed in the longitudinal direction with the aid of the material strip (300) and are optionally cut to a pre-specified length after the foam formation in order to produce panels.
12. The method according to either of Claims 10 or 11, characterised in that the cross-over regions (150, 190, 250, 290) of the shells (100, 200) positioned a pre-specified distance apart are accommodated at least partially in a positioning device during the foam formation.
13. The method according to Claim 12, characterised in that the positioning device is conveyed together with the shells (100, 200) in the form of at least one continuously circulating positioning chain.
14. The method according to any of Claims 10 to 13, characterised in that the shell (100) to be positioned a pre-specified distance away from the shell (200) lying on the boundary surface (210) is held in position with preferably magnetic and/or pneumatic holding means engaging on its boundary surface (110).
15. The method according to Claim 10, characterised in that the shell (100) to be positioned is lowered along a pre-specified track onto the shell (200) lying on its boundary surface (110) and the foam-forming material is introduced with a filling device positioned in the lowering region between the shells (100, 200).

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