DE20206189U1 - sectional - Google Patents

Abstract

The invention relates to a sectional door, consisting of a hinge receiving groove (3), which is formed on the interior face (I) of the door by adjacent sectional panels and receives the strap hinge in its entirety (2). The hinge receiving groove (3) is equipped with at least one step (3A) running approximately parallel to said groove, into which the fixing screws (8B) of the first strap hinge tab (2B) can be screwed and which forms a first receiving area (3C) at the base of the groove for housing at least one section of the articulation region (2A) of the strap hinge (2) and a second receiving area (3B) on the exterior of the groove for housing said first strap hinge tab (2B). The hinge receiving grooves (3) form a third receiving area (3D) in their groove border zone, which lies opposite the step (3A), said area housing the second strap hinge tab (2C). The fixing screws (8C) of the second strap hinge tab (2C) can be screwed into the groove wall (3E) of the third receiving area (3D).

Description

KONIG · PALGEN ■ SCHUMACHER -"-KLW

•♦ ·

DUSSELDORF■ESSEN PATENT ATTORNEYS

OUR SIGN: 100 437 HS/ng Essen, 18 April 2002

Mr

BERND LUCAS
Schützenhügel 14

D - 49809 Lingen (EMS)

Sectional door

The invention relates to a sectional door consisting of sectional panels connected to one another in an articulated manner.

In such sectional doors, several section panels are connected to one another along horizontal lines. Hinges, which consist of a hinge area and two mutually connected fastening areas (hinge band flaps), allow the section panels to pivot against one another. The adjacent section panel edges of such sectional doors in the hinge zone are provided with mutually interlocking webs and recesses, which serve, for example, as effective finger protection from the outside of the door and ensure a certain degree of coverage of the adjacent outside of the door in the hinge area when the section panels pivot against one another. Since lightweight panels have a not inconsiderable thickness of e.g. 45 mm for stability reasons and also for thermal insulation reasons, the

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Pivot point, ie the pivot axis into the panels, ie between the outer and inner panel surface. This allows the overlap length to be kept within tolerable limits for webs and recesses designed as external finger protection.
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For this purpose, a sectional door known from DE 39 38 021 C2 has a hinge receiving groove on the inside of the door formed jointly by adjacent section panels in the joint area (Fig. 8). This accommodates the joint area of the hinge band. In order to be able to safely transfer the considerable forces that occur on the hinge band flaps when the sectional door is moved into the adjacent section panel edge areas and to ensure that the screw connections have sufficient durability, the two hinge flaps of such a hinge band are led out of the hinge receiving groove and extend parallel to the panel surface where the fastening screws are screwed into suitable material reinforcements to transmit the aforementioned forces. - Such a sectional door has the disadvantage, however, that the aforementioned hinge receiving groove is required due to the inward positioning of the pivot axis of the section panels, i.e. between the two inner and outer panel surfaces. This is only filled in on the short sections in which the hinge bands are located. The remaining lengths of the hinge groove remain empty and therefore pose a risk of fingers being trapped when the door is opened because the groove edges move towards each other when the section panels pivot against each other.

This problem becomes more pronounced the larger the diameter of the hinge area of the hinges is and the further the hinge axis is moved from the inner surface of the door towards the middle of the panel thickness.

The types of sectional panels described above have not yet succeeded in meeting the conflicting requirements for user safety, ease of installation, durability of the hinges and

kidney fastenings and - with an attractive appearance - cost-effective manufacturability.

Based on this, the invention is based on the object of creating a visually appealing safety solution with little effort for the sectional doors described at the beginning, as known in particular from DE 39 38 021 C2. A further aspect of the invention is to achieve the durability of the hinge connections while at the same time making them easier to assemble and with an appealing result, even by less experienced personnel, for sectional doors whose section panels as a whole, i.e. also in the section edge area, consist of a sandwich material, such as a foamed core, the inner and outer surface of the door being formed by a sufficiently break-resistant surface material, such as light metal sheet or plastic panels, which surface material is also used to form the relatively complex section panel edges by means of appropriate folds. In many areas, these section panel edges are less thick than the main surface of the section panels. At the same time, however, in these areas, the forces occurring on the hinge bands must be introduced into the section panel edges via fastening screws.

To solve the above-mentioned problem as well as the further aspect of the invention, a sectional door with the features of claim 1 is proposed.

In such a sectional door, the entire hinge band, including the hinge band flaps and, preferably, also including the heads of the fastening screws, is housed in a specially shaped hinge receiving groove. Despite the hinge receiving groove being correspondingly large in cross-section, the mutually interlocking webs and recesses in the sectional panel edges on the outside of the door provide effective external finger trap protection.

can be guaranteed without having to accept a deterioration in the introduction of forces from the hinges via the fastening screws into the section panel edge areas. For this purpose, a comparatively complex structure of the hinge receiving groove is proposed, according to which three individual but interconnected receiving spaces are created with the help of a step parallel to the groove, into which the fastening screws of one of the two hinge hinge tabs are screwed, like into a fastening base integrated into the panel profile. The (second) receiving space, which is located above this step when viewed from the outside, accommodates one hinge hinge tab. The first receiving space, which is located next to the step and is lower when viewed from the outside, i.e. begins at the bottom of the groove, accommodates at least part of the joint area of a sufficiently large calibrated hinge strap. The third receiving space is used to accommodate the second hinge hinge tab and is located in the groove edge zone of the hinge receiving groove opposite the step, whereby the fastening screws of the second hinge hinge tab can be screwed into the groove wall of the third receiving space. The fastening screws are therefore not clamped into grooves specially provided for this purpose, but are screwed into the "flesh" of the sectional panel, as known from DE 39 38 021 C2.

In order to find similarly favorable force transmission conditions for the fastening screws for the second hinge band as for the first hinge band, it is provided according to the invention (alternatively) to either create a second step for this second hinge band corresponding to the mentioned step of the hinge receiving groove, opposite the first step, or, as is particularly preferred, to arrange the groove wall of the third receiving space receiving the fastening screws of the second hinge band at an angle to the panel surface and, as is particularly preferred, to arrange a second hinge band which is inclined at an angle to the opposite side (in the door closed position) when the first hinge band is stretched out straight, in particular at an angle.

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Thus, the force transmission surface of the second hinge band tab for the fastening screws lies more or less flat on the inclined groove wall of the third receiving space in the hinge receiving groove.
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In order to further improve extremely lightweight foamed sectional panels, which also have foamed panel section edge areas, various folds of the flat surface material of the sectional panels are provided for receiving fastening screws, including undercut zones according to claims 4 to 7, the features of which are of independent functional importance, even independent of the fulfillment of all features of the main claim. This also applies to panel stiffening profiles, which can be particularly advantageously integrated into the hinge receiving grooves or fastened in them.

An alternative stiffening option for the section panel edge areas for improved introduction of the forces transmitted by the hinge fastening screws is achieved by a dowel-like design according to claim 9, which in this respect is also of independent functional significance even without the realization of all the features of claim 1.

The aforementioned components to be used according to the invention as well as those claimed and described in the embodiments are not subject to any special exceptional conditions in terms of their size, shape, choice of material and technical conception, so that the selection criteria known in the field of application can be applied without restriction.

Further details, features and advantages of the subject matter of the invention emerge from the subclaims and from the following description of the accompanying drawing, in which - by way of example - an upcoming

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The preferred embodiment of the sectional door according to the invention is shown. In the drawing:

Fig. 1 of a sectional door the section panel edge area in the

Swivel joint zone of adjacent section panels cut-out

wise and in perspective representation;

Fig. 2A/B of a second embodiment of a sectional door, a sectional view of the same door area as in Fig. 1, whereby in Fig. 2B the upper section panel is made of extruded

made of light metal profiles (instead of foamed sandwich material) and shown in a pivoted position (instead of the stretched position shown in Fig. 2A);

Fig. 2C shows the lower end of the sectional door according to Fig. 2A

using a sectional panel edge such as the sectional panel shown above in Fig. 2A;

Fig. 3 a variant of the sectional door according to Fig. 2A with additional

stiffeners;

Fig. 4A/B shows a further variant of the sectional door according to Fig. 2A using additional stiffening means;

Fig. 5 a third variant of the sectional door according to Fig. 2A with

additional stiffening agents;

Fig. 6A/B shows a third embodiment of a sectional door according to the invention in the manner shown in Fig. 2A using dowel-like means for the hinge fastening screws;

Fig. 7 an alternative embodiment of the sectional door according to Fig.

6A;

Fig. 8 another alternative to a sectional door according to Fig. 6A with

different hinge and an additional stiffener;

Fig. 9A/B shows a fourth embodiment of a sectional door in the manner shown in Fig. 2A/B, also with dowel-like arrangements for receiving the hinge fastening screws and;

Fig. 10A/B shows a fifth embodiment of a sectional door in the manner shown in Fig. 2A/B, wherein an additional stiffening means is shown in Fig. 10B.

In the embodiment according to Fig. 1, the sectional panels 1A, 1B shown in detail in the area of adjacent edges consist of a sandwich construction in which light metal sheets processed by folding form the panel body including the edge area and are foamed in a known manner, which - for the sake of clarity - is only explicitly shown in Fig. 1 and not in the following figures. On the outside of the door A shown on the left in the drawings and subsequent drawings, finger protection is provided in the form of webs 4A, 4B and recesses 5A/B which are formed alternately on the sectional panels 1A, 1B and which engage with one another and extend across the entire width of the panel, of which only a narrow strip is shown in the drawing. Hinges 2 on the inside of the door I shown on the right enable the adjacent sectional panels to pivot relative to one another, as is the case, for example, with a sliding door. B. as shown in Fig. 2B, 4B, 6B, 9B and 10B. They are completely housed within a hinge receiving groove 3 within the thickness of the door leaf and consist of a hinge area 2A, an upper hinge band flap 2C and a lower hinge

renal ligament lobes 2&Bgr;, which are assigned to the higher or lower section panels 1A or 1B, respectively.

The hinge receiving groove 3 has a step 3A arranged parallel to the groove with a contact surface for the lower hinge hinge flap 2B that is approximately parallel to the panel. Fastening screws 8B are screwed into this step to fasten the lower hinge hinge flap 2B and to transmit forces when the door is moved. Inside the step 3A, this is reinforced by a flat material reinforcement in the form of a material fold 9B to accommodate the fastening screw 8B and to reinforce the step 3A. A corresponding material fold 9C is provided in the lower edge area of the higher section panel 1A to reinforce the screw connection area of the fastening screws 8C of the upper hinge hinge flap 2C. Further material folds 9A and in the area of undercut zones 10A and 1OB are explained in more detail below.

Above the step 3A, i.e. close to the groove entrance, a (second) receiving space 3B is formed in the hinge receiving groove 3, in which the one hinge band tab 2B and the head of the fastening screw 8B are completely accommodated. In addition to the step 3A, there is a first receiving space 3C at the bottom of the groove, namely for receiving at least a part (usually about the inner half) of the joint area 2A of the hinge band 2. In the present case, a root attachment or leg of the upper hinge band tab 2C, parallel to the panel, is also received in this first receiving space. The step 3A and the groove bottom therefore define the second and first receiving spaces. A third receiving space 3D adjoins the first receiving space 3C on the side of the hinge receiving groove 3C opposite the step 3A. It is limited to the (upper) groove edge by a groove wall 3E which is inclined at approximately 45° to the panel surface and which serves as a contact surface for the hinge band flap 2C accommodated in the third receiving space 3D. The fastening

The fastening screw 9C is screwed through the hinge flap into this groove wall 3E and subsequently into the material fold 9C, whereby the screw head is also completely received by the third receiving space 3D.
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Finally, Fig. 1 shows a cover strip 6 made of rigid material, which is essentially flat and has a hinge-like profiled edge. In conjunction with the undercut 1OA, this can be pivoted parallel to the door and covers the hinge receiving groove over the entire section width in the door closing position shown.

A special feature of the embodiment according to Fig. 2A is that the material folds 9A, 9B and 9C are made from a continuous flat material strip due to multiple folding, with each fold defining a hollow space. This arrangement has a beneficial effect on the transmission of force and the durability of the fastening screws. A stiffening profile 7 made from extruded light metal or plastic is clamped within the second receiving space 3B by the hinge band tab 2B on the one hand and by the material fold 9A on the other hand and allows the hinge-like articulation of a cover strip 6 which is an alternative to Fig. 1. How it works can be seen in conjunction with Fig. 2B. From this it can be seen that the cover strip 6 has, in addition to an upper and lower edge joint and fastening area, a flexurally elastic joint zone 6A, e.g. B. made of vulcanized rubber material, which allows the cover strip 6 to be folded from the extended position (Fig. 2A) into the pivoted position (Fig. 2B).

From Fig. 2C it can be seen how the lowest section panel 1D of the door can be used as a lower door closure using a door closure profile, despite having the same lower section edge design (as the other section panels).

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This is done using the same screw fastening zone in the lower panel edge area.

As in Fig. 2A to 2C, Fig. 3 shows a thermal separation of the outer and inner panel surfaces. Thermal separation strips 11, which are also used in Fig. 5, are used for this purpose. Fig. 3 also shows an alternative stiffening profile 7 to Fig. 2A, which is screwed into the panel using the same fastening method and possibly additionally using screws 7A. It can be provided, for example, as a stiffening web extending across the width of the panel to reduce deflection in the hinge area.

In Fig. 4A/B, the special features are the different design of the material folds 9B and 9C, which have a multi-angled web to further reinforce the screw area. In addition, additional fastening screws 8A are provided, which can be screwed into the inner panel surface and also penetrate the material fold 9A. This allows protruding stiffening profiles, as can be seen in Fig. 3 and later in Fig. 8 and 10B, to be attached more firmly for improved torque transmission.

In Fig. 5, the special feature consists in reinforcement pieces 12, which are inserted into the material folds 9B and 9C in order to ensure increased hold for the fastening screws 8C and 8B.

In Figures 6A to 8, the special features primarily consist of the use of dowel arrangements 13 for improved force introduction of the fastening screws into the section panels. The dowel arrangement 13 is a permanent component of the section panel edge area and preferably consists of a material fold 13B formed approximately in the manner of a dovetail groove, by which the dowel core 13A, e.g. a plastic injection-molded part, in particular with a conical bore, is held. This dowel

core can also be subsequently pressed into the material fold 13B at the desired location. This applies in particular to the embodiments according to Fig. 6A to 7. By screwing in a screw, the dowel core 13A then spreads out while the screw tip drills into the sheet metal or other flat material behind it under its own force. By designing the material fold accordingly, in particular as shown in Fig. 8, the dowel arrangement can also be compressed somewhat by screwing in the screw and thereby slightly widened, which further increases the force introduction and the claw of the dowel arrangement in the sectional panel. The dowel assemblies 13 according to Fig. 9A/B work in a similar way, although only one material fold is shown here and, if necessary, a dowel core can also be dispensed with.

The special feature of Figures 9A to 10B is that the third receiving space 3D of the hinge receiving groove 3 is also formed by a step 3A of the section panel edge area. The fastening screw 8C of the hinge band 2 is screwed into the step 3A, which in the embodiment according to Fig. 10A/B is again reinforced with an inner material fold 9C, in a similar way to the lower hinge band flap 2B. This type of design of the hinge receiving groove is particularly suitable when fastening screws with countersunk heads are used or when the screw heads protrude beyond the inner surface of the door leaf is not critical.

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Reference numberSiste

1A-D Section panels 2 Hinge band 2A Joint area 2 B Hinge band flap 2C Hinge band flap 3 Hinge groove 3A Level 3A' Level 3B second recording room 3C first recording room 3D third recording room 3E Groove wall 4A, B Bridges 5A, B Recesses 6 Cover strips 7 Stiffening profile 7A Screws 8A-C Fixing screws 9A-C Material folding 10A, B Undercut zones 11 thermal separation strips 12 Reinforcement pieces 13 Dowel arrangement 13A Dowel core 13B Material folding I inside A Outside

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Claims (14)

1. Sectional door, consisting of articulated section panels ( 1 A- 1 D) - with hinge straps ( 2 ) allowing the section panels to be moved relative to one another and consisting of a joint area ( 2 A) and at least two fastening areas, - with a hinge receiving groove ( 3 ) formed jointly by adjacent section panels on the inside of the door (I) for receiving the entire hinge band ( 2 ) within the hinge receiving groove with webs ( 4 A, 4 B) and recesses ( 5 A, 5 B) which mutually engage with one another on the adjacent section panel edges, e.g. forming an external finger trap protection, which are arranged in the vicinity of the hinge receiving groove ( 3 ) in the area of the section panels located on the outside of the door (A). - in which the hinge receiving groove ( 3 ) is provided with at least one step ( 3A ) arranged approximately parallel to the groove, into which the fastening screws ( 8B ) of the first hinge band tab ( 2B ) can be screwed, and which forms a first receiving area ( 3C ) in the groove base for receiving at least part of the joint area ( 2A ) of the hinge band ( 2 ) and a second receiving space ( 3C ) in the outer groove area for receiving the one hinge band tab ( 2B ) and - in which the hinge receiving grooves ( 3 ) form a third receiving space ( 3D ) for receiving the second hinge band tab ( 2C ) in their groove edge zone opposite the step ( 3A ), wherein the fastening screws ( 8C ) of the second hinge band tab ( 2C ) can be screwed into the groove wall ( 3E ) of the third receiving space ( 3D ). 2. Sectional door according to claim 1, characterized in that the groove wall ( 3 E) receiving the fastening screws ( 8 C) of the second hinge flap ( 2 C) is inclined obliquely to the panel surface. 3. Sectional door according to claim 2, characterized in that the second hinge flap ( 2C ) is angled. 4. Sectional door according to one of claims 1 to 3, characterized by material folds ( 9 B, 9 C) oriented approximately parallel to the step ( 3 A) and/or to the groove wall ( 3 E). 5. Sectional door according to claim 4, characterized by reinforcing pieces ( 12 ) received in the material folds. 6. Sectional door according to one of claims 1 to 4, characterized by undercut zones ( 10A , 10B ) in the region of the edges of the hinge receiving groove ( 3 ). 7. Sectional door according to one of claims 1 to 6, characterized in that the second receiving space ( 3 B) has a material fold ( 9 A) near the edge of the hinge receiving groove ( 3 ). 8. Sectional door according to one of claims 1 to 7, characterized in that a stiffening profile ( 7 ) is fastened in the hinge receiving groove ( 3 ). 9. Sectional door according to one of claims 1 to 8, characterized by at least one dowel arrangement ( 13 ) in the sectional panel for receiving fastening screws ( 8 B, 8 C) of the hinge strip flaps. 10. Sectional door according to claim 9, characterized in that the dowel arrangement ( 13 ) consists of a material fold ( 13 B). 11. Sectional door according to claim 10, characterized in that the material fold ( 13 B) accommodates a dowel core ( 13 A). 12. Sectional door according to one of claims 1 to 11, characterized in that a second step ( 3 A') is arranged in the edge zone of the hinge receiving groove ( 3 ) opposite the step ( 3 A). 13. Sectional door according to one of claims 1 to 12, characterized in that the section panels consist of a sandwich construction in which the section panel edge regions are also formed from folded flat material, the cavities of which are filled with foam. 14. Sectional door according to one of claims 1 to 13, characterized in that the hinge band ( 2 ) has a leg region of the second hinge band tab ( 2 C) which is inclined obliquely to a first hinge band tab ( 2 B) parallel to the panel in the extended position of the door.