EP0122615A2 - Up-and-over door - Google Patents

Abstract

The invention relates to up-and-over doors, especially heavy doors for garages and the like, each with a stationary door frame having at least one essentially vertical frame side part, at least one door leaf tiltable about a horizontal axis within the door frame and at least one link pivotable together with the door leaf in the same direction of rotation and in the form of a double-armed lever with lever arms of unequal length and with a pivot bearing arranged on a reinforcement of the vertical frame side part. The longer lever arm of the link is articulated on the door leaf, and attached to the shorter lever arm is a suspension of one end of a spring arrangement which has at least one spring and a fastening of its other end assigned to the reinforcement of the vertical frame side part. The invention is intended to develop an up-and-over door of this type to the effect that the stress on the door frame caused especially by bending forces is reduced in a constructively simple and space- saving way, and at the same time the danger of damage to the parts of the spring arrangement located inside the garage, its suspension or fastening and the adjacent constructional elements is reduced, without their easy accessibility being impaired. This is achieved in that the reinforcement is designed as a frame unit which absorbs the load and the counterforces and is connected rigidly to the door frame and which extends essentially in the plane of the shorter lever arm and of the spring arrangement and surrounds at least the latter to at least the height of the pivot bearing in a contour-limiting manner. <IMAGE>

Description

The invention relates to tilting gates, in particular heavier gates for garages and the like, each having a fixed frame which has at least one substantially vertical frame side part, at least one gate wing which can be tilted about a horizontal axis within the gate frame and at least one together with the door leaves in each case the same rotational direction of the pivotable arm in the form of a double-armed lever with unequal lever arms and at a gain of _- arranged vertical frame side part pivot bearing, wherein the longer lever arm of the control arm articulated to the leaf and on the shorter lever arm of a suspension of one end of a spring Arrangement is attached, which has at least one spring and one of the reinforcement of the vertical frame side part associated attachment of its other end.

With the tilting gates of this type known from practice, the load originating from the gate leaf and the counter forces caused by the spring arrangement are absorbed by the gate frame, with considerable bending stresses on the vertical frame side parts in particular in the case of larger, heavy gate leaves for, for example, double garages occur. As a result, there is a risk of permanent breaks at these highly stressed areas and thus risk of damage and injury to objects parked in the area of the gate or persons in the area.

Attempts are being made to counter these dangers in part by appropriately reinforced gate frames, as is known, for example, from DE-GM 19 10 903. Here is a reinforcement rail on the vertical frame side part sets, at the upper end of the bearing block for the pivot bearing and at the lower end of a support arm are attached as a fastening for a substantially vertical spring arrangement. The equilibrium force exerted by the latter to load the door as well as the counter or spring reaction force are transmitted in full to the reinforcing rail and the vertical frame side part via the bearing block or the support arm. Particularly in the case of heavier gates with three or more spring columns arranged one behind the other, high bending moments result which lead to the spring fastenings breaking and even the plaster breaking out. The pedestal and the support arm protrude freely into the interior of the garage and can therefore be easily damaged by vehicles entering and exiting. Since the pedestal and the support arm represent cantilevers, they then tear off easily at their clamping points on the reinforcement rail.

It is an object of the invention to develop a tiltable gate of the type mentioned in such a way that the stress on the gate frame, in particular by bending forces, is reduced in a structurally simple and space-saving manner and at the same time the risk of damage to the parts of the spring arrangement arranged in the interior of the oven, their Suspension or fastening and the adjacent components is reduced without impairing their easy accessibility.

This is achieved in that the reinforcement is designed as a frame which absorbs the load and the counterforce and is rigidly connected to the gate frame, which essentially extends in the plane of the shorter lever arm and the spring arrangement and at least the latter up to at least Surrounding the height of the pivot bearing.

The framework, together with the vertical frame side part, forms a functional unit with a precisely defined one Force course. The load exerted by the gate wing on the longer lever arm of the handlebar and the counterforce or equilibrium force exerted by the spring arrangement on the shorter lever arm act as bearing force on the framework via the pivot bearing of the handlebar. The counter or spring reaction force to the equilibrium force is transferred to the same at the attachment of the spring arrangement to the framework. The frame supports of the framework receiving the pivot bearing and the fastening for the spring arrangement are supported on both sides and thus represent support supports with regard to the spring forces exerted by the spring arrangement. According to their points of attack on the frame, both a part of the spring reaction force and an equally large part remain the bearing force in the framework, where they cancel each other out due to their opposite direction. It is thereby achieved that, in contrast to the prior art, only the remaining parts of these bearing and spring reaction forces are supported in the gate frame and cause lower bending stresses there. This is particularly important in the case of heavy gates, the main area of application of the invention, since, despite the large distances between the spring columns and the gate frame, the spring columns are arranged in series as a result of the arrangement of the spring columns which is necessary to achieve the greatest possible clear passage width. On the one hand, this enables a reduction in the length of the shorter lever arm of the handlebar that protrudes into the interior of the garage, which means that less space is required.

The framework has considerable rigidity, in particular in the direction of its plane, as a result of which it provides effective contour protection for the components of the handlebar mechanism and / or the spring arrangement surrounded by it. This contour protection is particularly effective against over the impact of entering and exiting vehicles, since their direction of movement coincides with the direction in which the framework has the greatest rigidity. The risk of tearing off the frame supports which receive the pivot bearing and the fastening for the spring arrangement and which are already subjected to less bending stress due to their design as support supports is practically eliminated.

At the same time, the framework allows free access to the spring arrangement, its mounting and suspension, to the handlebar and to the pivot bearing, so that maintenance work, such as greasing the pivot bearing or the adjustment of the spring that is often required especially with large, heavy gates, as well as the replacement of Wear parts, especially the springs, are easy to carry out.

The framework can easily be adapted to different installation and load requirements. It has a considerable slope with a small overall width. This makes it possible to prevent the framework from projecting laterally beyond the vertical frame side part even in the case of heavy gates when space is limited. Here, the free accessibility of the framework offers the advantage of making the attachment in its plane, that is to say without attachment flanges bent sideways outwards, and thereby also keeping the overall width small. If appropriate profiles are used, for example a solid flat profile for the framework, it can even be installed in the reveal of the door.

The adaptation to different load requirements can be easily made even when using standardized gate frames - particularly important for larger quantities and for architectural reasons. In such a case, the framework can also consist of standard profile beams, the length of which corresponds to the loads or the space requirement of the spring arrangement is chosen.

The framework according to the invention reinforces the vertical frame side part of the gate frame in a structurally simple and material-saving manner with a small space requirement while simultaneously reducing the bending stresses transmitted to it and protects it as well as the parts of the handlebar mechanism, including the spring arrangement, inside the garage, defining the contour. It is known from DE-PS 913 262 to accommodate the shorter lever arm of the handlebar and the spring arrangement within a sheet metal housing in a tilting gate and to use its side walls and lower bottom part for receiving the pivot bearing or fastening the spring arrangement. This sheet metal housing is placed on the vertical frame side part and screwed on with wood screws. There is no amplification of the gate frame and is open only for overhead doors light weight _- suitable. This well-known up-and-over door is of a different kind.

Although the spring arrangement can, for example, be equipped with at least one compression spring that extends essentially horizontally, an embodiment with at least one substantially vertically extending tension spring is preferable.

In this case, the framework preferably has essentially the shape of a U-profile with approximately horizontal legs and approximately vertical web, the legs being connected to an inside of the vertical frame side part facing the inside of the garage and the pivot bearing and the fastening of the lower end of the spring arrangement having at least one tension spring. Such a framework is characterized by high inherent rigidity with the least design effort. By simply changing the length of the horizontal legs, this framework can easily be adapted to different loads.

The bending stress of the gate frame is preferably further reduced in that the framework is integrally connected to the vertical frame side part. In this context, the vertical frame side part is releasably attached to the gate frame in order to achieve dimensions of the gate that are favorable for transport.

The protective function of the framework is preferably improved in that a non-load-bearing attachment placed on the framework, extending in its plane, closes the movement area of the shorter lever arm in a contour-limiting manner. However, it is also possible for the framework to enclose the movement area of the shorter lever arm in a contour-limiting manner. In the case of large and heavy door leaves, the pivot bearing is preferably accommodated in at least one cross member which connects the vertical frame side part and the web of the framework.

A further improvement in this regard is preferably achieved by a cover that is detachably attached to the framework, cover the spring arrangement and / or cover the movement area of the shorter lever arm, at least with respect to the inside of the garage, so that it is safe to touch. Such a covering advantageously has a passage opening for the handlebar, which can be covered by a cover.

The lower ends of the tension springs are advantageously fastened by means of two-arm or multi-arm tensioning brackets, the arms of which are attached to the framework with their free ends. As a result, the transmission of forces is better distributed to the framework, so that permanent breaks in the screws and bulges used in the lower horizontal leg, for example for fastening the arms to the framework, are reliably avoided. This attachment survives compared to conventional loading fortifications that break at about 3000 load changes, 40 000 load changes and more without recognizable damage. In addition, the spring arrangement can be mounted much better and makes it easier to readjust.

The invention is described in more detail below with the aid of three exemplary embodiments and with reference to the accompanying drawing.

• Fig.1 eine schematische Teildarstellung eines geschlossenen Garagentors gemäß einem ersten Ausführungsbeispiel der Erfindung bei Betrachtung vom Garageninneren her,
• Fig.2 eine Seitenansicht des in Fig.1 gezeigten Garagentors, jedoch mit teilgeöffnetem Torflügel,
• Fig.3 eine vergrößerte schematische Darstellung des in Fig.2 gezeigten Rahmenwerks ohne Verkleidung,
• Fig.4 einen Vertikalschnitt des in Fig.3 dargestellten Rahmenwerks inklusive Lenkerlagerung und Feder-Anordnung,
• Fig.5 einen Schnitt entlang der Linie V-V in Fig. 4,
• Fig.6 eine der Fig.3 entsprechende Darstellung eines zweiten Ausführungsbeispiels der Erfindung und
• Fig.7 eine der Fig. 2 entsprechende Darstellung eines dritten Ausführungsbeispieles der Erfindung.

It shows:

• 1 shows a schematic partial illustration of a closed garage door according to a first exemplary embodiment of the invention when viewed from the inside of the garage,
• 2 shows a side view of the garage door shown in FIG. 1, but with the gate wing partially open,
• 3 shows an enlarged schematic illustration of the framework shown in FIG. 2 without cladding,
• 4 shows a vertical section of the framework shown in FIG. 3, including handlebar mounting and spring arrangement,
• 5 shows a section along the line VV in Fig. 4,
• 6 shows a representation corresponding to FIG. 3 of a second exemplary embodiment of the invention and
• 7 a representation corresponding to FIG. 2 of a third exemplary embodiment of the invention.

Fig. 1 to 5 show a first embodiment of a tiltable garage door according to the invention with a fixed gate frame 1, which is anchored in the masonry 2 of a garage, and a gate wing 3 tiltable within the gate frame 1 about a horizontal axis. The gate frame 1 consists of two vertically running frame side parts 4, which are connected by a horizontal frame upper part 5 and a lower stop rail 6 for the gate wing 3. In its upper corner areas, the gate leaf 3 each has a guide roller 7 which, during the opening and closing process of the gate leaf 3, represents its tilting axis which can be moved along a rail 8 arranged in the region of the garage ceiling. Each vertical frame side member 4 is associated with a pivotable about a pivot bearing 9 handlebar 10, a spring assembly in the form of two or four tension springs ¹ 1 (s.Fig.4 5, respectively) and a framework 12th Each handlebar 10 can be pivoted together with the gate leaf 3 in the same direction of rotation. For the sake of simplicity, FIG. 1 shows only half of the garage door. The following description is limited to the corresponding vertical frame side part 4 and the associated components.

The framework 12 has the shape of a U-profile with an upper horizontal leg 13, a lower horizontal leg 14 and a vertical web 15 connecting both. The legs 13 and 14 are integrally connected to the vertical frame side part on the inside 17 of the frame facing the garage interior 16. They have the same width as the frame side part 4. To facilitate transport, the latter is releasably connected at 18 to the upper frame part 5 and the stop rail 6. To reinforce the framework 12 are two parallel to its legs 13 and 14 trusses 19 on the in the plane of the. 3 and 4 lying outer sides of the framework 12 releasably attached to the vertical web 15 and on the vertical frame side part 4. Two vertical tension bands 20 arranged in the same way releasably connect these cross members 19 to the upper horizontal leg 13 of the framework 12. The horizontal legs 13, 14 and the vertical web 15 are made of U-section steel, but can also be solid.

The handlebar 10 is designed as a double-armed lever with a longer lever arm 21 and a shorter lever arm 22, both of which are connected by a bearing axis 23 mounted in the pivot bearing 9 and extending normally to the lever arms 21, 22. The pivot bearing 9 is arranged in trusses 19 at the intersection with the tension bands 20. The free end of the longer lever arm 21 is articulated on the gate wing 3 in its lower corner area at 24. In order to be able to guide the longer lever arm 21 past the vertical frame side part 4 for this purpose, the bearing axis 23 protrudes laterally out of the plane of the framework 12 on its side facing the garage interior.

The shorter lever arm 22 is U-shaped with two parallel lever arm parts 26 connected by a horizontal web part 25 - the free ends of the latter are fastened to the bearing axis 23 between the cross members 19.

A T-shaped connecting element 27 is articulated with its web 28 on the web part 25 of the shorter lever arm 22. According to FIG. 4, the upper end 30 of a tension spring 11 is suspended on the flange 29 of this connecting element 27 on both sides of the web 28. In FIG. 5, the upper ends 30 of four tension springs 11 are fastened to the flange 29. The attachment of the lower ends 31 of these parallel tension springs ¹ 1 is carried out by means of U-shaped clamping brackets 32, which receive the spring ends 31 in the U-curvature and are screwed to the lower horizontal leg 14 of the framework 12 with the free ends of their leg arms also the upper ends 30 of the tension springs 11 are fastened to the flange 29 by means of clamping brackets.

The framework 12 is dimensioned such that it encloses the shorter lever arm 22 of the handlebar 10 over its entire swivel range and the tension springs 11 in a contour-limiting manner. Furthermore, a protection against accidental contact is provided in the form of a cladding 33, which at least on the side of the framework 12 facing the interior of the garage covers the area circumscribed by the same. The cover 33 consists of an upper and a lower half, which meet at the level of the pivot bearing 9. The opening required for the passage of the bearing axis 23 can be covered by an aperture 34.

Fig. 6 shows a second embodiment of the invention. A U-shaped framework 35 is fastened by means of screw connections to the vertical frame side part 4, a flange part 36, which extends to both sides and is in contact with the vertical frame side part 4, and which fastens both the leg 13 and an attachment part, is attached to the upper horizontal leg 13 37 takes over. The attachment part 37 is placed on the upper leg 13, extends in the plane of the framework 35, encloses the range of motion of the shorter lever arm 22 and has no supporting function. As a result of the detachable connection of the framework 35 to the vertical frame side part 4, the multi-part design of the gate frame 1 can be omitted.

FIG. 7 shows, as a third exemplary embodiment of the invention, a rectangular framework 38, which is detachably fastened to the vertical frame side part 4 with one of its longer webs at 39. Here, the multi-part design of the gate frame 1 can be omitted.

The function of the gate according to the invention has already been described above and a description thereof is therefore unnecessary at this point.

The invention is not limited to the exemplary embodiments shown here. For example, it is conceivable to equip the spring arrangement with three or more tension springs, in particular for heavy gate leaves. The trusses can be integral parts of the framework. The same applies to the drawstrings.

Claims (10)

1. Tilting gates, in particular heavy gates for garages and the like, each with a fixed gate frame which has at least one substantially vertical frame side part, at least one gate wing tiltable within the gate frame about a horizontal axis and at least one together with the Gate wing pivotable in the same direction of rotation in the form of a double-armed lever with lever arms of different lengths and a pivot bearing arranged on a reinforcement of the vertical frame side part, the longer lever arm of the handlebar being articulated on the gate wing and a suspension of one end of a spring arrangement attached to the shorter lever arm which has at least one spring and a fastening of its other end associated with the reinforcement of the vertical frame side part, characterized in that the reinforcement acts as a framework which absorbs the load and the counterforce and is rigidly connected to the gate frame (1, 4), ( 12, 35, 38) trained et is, which is essentially in the plane of the shorter lever arm (22) and the spring arrangement (11) extends and at least surrounds the latter to at least up to the height of the pivot bearing. 2. Tiltable gate according to claim 1, characterized in that the framework (12, 35) has essentially the shape of a U-profile with approximately horizontal legs (13, 14) and approximately vertical web (15), wherein the legs (13, 14) are connected to an inside (17) of the vertical frame side part (4) facing the inside of the garage and the pivot bearing (9) and / or the fastening (32) of the lower end (31) of the at least one Take up the spring arrangement with tension spring (11). 3. Tiltable gate according to claim 1 or 2, characterized in that the framework (12) is integrally connected to the vertical frame side part (4). 4. Tiltable gate according to at least one of claims 1 to 3, characterized in that the vertical frame side part (4) is releasably attached to the gate frame (1). 5. Tiltable gate according to at least one of claims 1 to 4, characterized in that a framework (35), extending in its plane, non-supporting attachment (37) encloses the range of motion of the shorter lever arm (22) in a contour-limiting manner. 6. Tiltable gate according to at least one of _' claims 1 to 4, characterized in that the framework (12, 38) encloses the movement range of the shorter lever arm (22) in a contour-limiting manner. 7. Tiltable gate according to at least one of claims 1-6, characterized in that the pivot bearing (9) is received in at least one cross member (19), which connects the vertical frame side part (4) and the web (15) of the framework (12). 8. Tiltable gate according to at least one of claims 1 to 7, characterized in that a spring arrangement (11) and / or the range of movement of the shorter lever arm (22) at least with respect to the garage interior (16) touch-proof covering (33) detachable is attached to the framework (12). 9- Tiltable gate according to claim 8, characterized in that the covering (33) has a passage opening for the handlebar (10), which can be covered by a panel (34). 10. Tiltable gate according to at least one of claims 1 to 9, characterized in that the attachment of the tension spring (11) by means of two- or multi-armed clamping bracket (32), the arms of which are attached with their free ends to the framework (12, 14) .

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