EP1229197A2 - Single panelled overhead door - Google Patents

Abstract

The single-panel door, with an up-and-over swing movement, has a hollow torsion spring shaft (8) with only a single torsion spring (10) for weight compensation. The pawl spring, of the safety system (12) to prevent the door falling, is tensed solely by rotation of its coils, or the locking pawl is mounted in a swing holder opposite the door panel (1).

Description

The invention relates to a single-leaf overhead gate with the features of the preamble one of the appended claims 1, 3 and 4, as known from DE 16 92 017 U1 is. The invention also relates to a single-leaf overhead gate with the features the preamble of appended claim 2, as in the alternative to a) from DE 92 02 302 U1 and in the alternative to b) is known from DE 16 92 017 U1.

DE 16 92 017 U1, like FR 15 21 631 C1, describes a tilting gate with a rigid one Door leaf, the upper area of which is articulated to a frame via levers and below the lever linkage via rollers or similar guide elements in the frame attached vertical guide rails is guided. The guide elements are with Distance hinged from the lower edge of the door leaf to the side edges of the door leaf. By this mechanism swings the lower edge of the door leaf during the opening process Closing level and protrudes in the horizontal opening position of the door leaf a kind of canopy forming out of the garage opening. An advantage of this also as a "canopy gate" designated door type is the small space required inside the garage. Also need inside the garage no horizontal guide rails or the like can be installed. The Known gates of the generic type are with counterweights for door leaf weight compensation provided, the movement path along the vertical frame bars runs and each with cables, whose free ends in the area of the door leaf guide elements attack on the door leaf, provide. Fall protection systems are in this area provided that the door leaf against sudden sagging of a cable against Secure crash.

Other examples of fall protection reacting to a slack rope in others Door types can be found in DE 195 03 588 C2 and DE 27 27 440 A1 for up-and-over doors, EP 0 172 351 B1 for sectional doors, EP 0 149 692 A1 and EP 0 156 415 A1 for Rolling gates, DE 37 10 237 for sectional doors, FR 24 15 188 A1 for sectional or lifting gates and DE 44 13 465 A1 for sectional, lifting or rolling gates. The from EP 0 156 415 A1 and DE 37 10 237 A1 removable sectional doors also have as a weight compensation device a massive torsion spring shaft to be installed above the door opening with two torsion springs.

DE 92 02 302 U1 describes a single-leaf overhead door with a door frame and one rigid door leaf, with its lower area on a first assigned to the frame essentially vertical guide rail and with its upper area on one second essentially horizontal guide rail assigned to the door frame in this way is that the door leaf in the course of movement between its horizontal opening position and its vertical closed position tilts as a whole. As a source of power for the Here, too, the counterbalance is a counterweight device that operates via cables intended.

The single-leaf overhead gates known from FR 15 21 631 C1, 16 92 017 U1 and DE 92 02 302 U1 stand out in contrast to that of several door leaf members formed sectional doors through simpler manufacture and assembly and therefore mostly also by their cheaper price. In particular, this type of gates can Manufacturing site to a large extent pre-assembled and in the pre-assembled state to the assembly site be transported.

The object of the invention is a single-leaf overhead gate according to the preambles of the attached independent claims in production, transport, assembly and even after a long time or to make frequent operation safer, yet simpler and cheaper.

To solve this problem is a single-leaf overhead gate in the preamble of the claims 1-4 mentioned type further developed by the characterizing features of claims 1-4.

Advantageous embodiments of the invention are the subject of the dependent claims.

In a first embodiment of the invention according to claim 1, starting from a Gate with the features of the preamble of claim 1 suggested that instead of counterweights uses a torsion spring shaft as a weight compensation device becomes. This saves weight and thus transportation costs; the torsion spring shaft can already pre-assembled at the manufacturer. The fitter needs at the installation site just align the door already pre-assembled in the frame and the frame in the masonry anchor to get a turnkey gate. According to the invention despite the tightened security regulations now in force in the European Union dispenses with the safety of a second torsion spring, which is also weight and cost saves. In the tilting gate according to the invention, this is surprisingly without sacrificing safety possible because the fall arrest device is not just for a rope break but also reacts to a broken spring. The torsion spring shaft itself is space-saving attached to the frame. This leaves a pre-assembly of the torsion spring shaft when Manufacturers too, causing uncertainty due to incorrect assembly and the risk of injury assembly personnel, e.g. when the spring is tensioned, can be reduced.

In a second embodiment of the invention according to claim 2, starting from a Gate with the features of the preamble of claim 2 proposed that the Power source a pre-assembled drive unit acting as a drive shaft with gate shaft and Rope drums is used. This door shaft can be particularly advantageous as that 1 mentioned torsion spring shaft of a torsion spring weight compensation device be trained. This saves weight and thus transportation costs; the torsion spring shaft can be pre-assembled at the manufacturer. The fitter needs on Place of installation to align the door already pre-assembled in the frame and the frame in anchor it to the masonry to get a ready-to-use gate. The gate shaft itself is stored on the frame to save space. This leaves the manufacturer pre-assembling the door shaft too, causing uncertainty due to incorrect assembly and the risk of injury assembly personnel, e.g. when tensioning the spring as a torsion spring shaft trained gate shaft, can be reduced. The drive unit consisting of a torsion spring shaft and at least one traction drum is in its vertical and vertical directions dimensioned so that they neither to the side nor up or in the through the frame framed gate opening in the direction parallel to the frame plane seen over the frame protrudes. It only protrudes in the thickness direction into the room to be locked but otherwise the space required for the frame. That way it can be full Pre-assembled gate transported in a space-saving manner and without difficulties and without the need retrofitting and the associated security risks due to incorrect assembly at the construction site fitted into the masonry opening to be closed become.

According to a third embodiment of the invention according to claim 3, in which a pawl lever pivots relative to the door leaf during operation of the door, a biasing spring for biasing the pawl lever into the detection position under load during door operation is always in motion. To avoid a resulting spring break of the biasing spring, it is provided according to the invention that this spring in the entire pivoting area between the pawl lever and the door leaf is only subjected to rotation of a helical area formed on the spring. Stresses caused by constant bending of a spring in some areas are thus avoided. The spring load is distributed over several turns of a spiral area, which twist with each other, as in the case of a coil spring loaded on tension.
Such a spring design and arrangement has a particularly long service life, so that risks of spring breakage are avoided or at least contained as far as possible.

A further - albeit less preferred - solution according to the invention provides for Claim 4 before to not store the pawl lever directly on the door leaf, but on a pawl holder swiveling in relation to the door leaf. In this way the pretensioning spring is not moved when the door is moved, as the pretensioning spring is only between the pawl holder and the pawl lever must be effective. The Kippoder Swiveling movement of the door leaf causes the pawl holder to swivel relative to the door leaf.

The linkage provided by an advantageous development of the invention Rollers or the like guided in a vertical guide rail assigned to the frame Door leaf guide elements not at the lower edge of the door leaf, but closer to a lever linkage of a lever mechanism for guiding the upper half of the door leaf and / or offset to the vertical center of the door leaf has several advantages: one is a vertical guide area on the frame and thus the guide rails and possible counter bearings for fall protection shorter than if the door leaf edge is further down shifted leadership roles. On the other hand, the gate movement range is from the inside of the garage further out - the lower edge of the door leaf swivels in In the course of the opening movement outwards - so that inside the to be closed More space is available for example for parked cars.

Advantageously, one of two rope units engages on both sides of the door leaf the door leaf with the torsion spring shaft connecting cable, which cable units are each formed by a rope or several parallel ropes. With the other end the rope units are each provided on the ends of the torsion spring shaft Rope drums or the like winding device wound.

The bearing elements of the torsion spring shaft are attached e.g. immediately on upper frame spar. The dimensions of the torsion spring shaft, i.e. especially theirs Outside diameter (possibly also that of the cable drums) is further preferred such that it does not protrude beyond the frame bars, neither outwards nor inwards Gate opening. This compact design enables the weight compensation device to be completely pre-assembled of the door leaf according to the invention at the manufacturer, without that the weight compensation device interferes with the assembly.

Fall protection systems have so far mainly been at least partially essential purely vertically moving door leaves have been proposed, for example those of Sectional gates, the lower panels of which do most of their movement in vertical guide rails guided back, or by lifting gates, all of which lead upwards become. Known fall protection devices include the corresponding side door leaf area fixed housings in which a pawl is pivoted, which is triggered when the rope becomes slack - mostly via release elements, which moves out of the range of movement of the pawl when the rope becomes slack move. Such known fall protection devices are complex on the one hand and on the other hand, not transferable to the tilting or swinging gates of interest here, since yes these tilting or swinging gates not only a vertical movement but also a tilting movement perform this type of fall protection but a door leaf area to arrange the pawl require its alignment during the door leaf movement sequence to be secured remains constant.

The fall protection devices described here, on the other hand, advantageously indicate one or parallel to the roller axis pivotally mounted pawl element that can pivot relative to the door leaf when the door leaf is tilted and thereby its position relative to a fixed intervention training, which in the event of triggering is caught by the pawl. The fall protection device according to the invention can also be particularly easily trained by one on one Pawl lever trained, pawl includes spring-loaded in the locked or engaged position is biased by the cable tension against this bias is pulled into its release position. This can be achieved particularly easily by that the door leaf end of each rope unit does not engage the door leaf itself, but on the pawl lever and the cable pulling forces on the pawl lever that Pulling the pawl into the release position transfers it to the door leaf.

In a preferred embodiment, the pawl element itself is a pawl lever educated. This can in turn by an at least two-armed lever be formed, wherein a lever arm is designed as a pawl and one the engagement training in the locking position engaging area and the second Lever arm has an attack for the cable pull device. It is also a one-armed one Training conceivable, for example, that the cable tension the pawl pulls against a stop in normal operation. But this should then be avoided a complicated structure also formed on the pivotable pawl element his. The two-armed solution comes without a stop and with a short one Pathways of intervention. The training is particularly simple if such a pawl lever directly on the roller axis of the individual lateral guide roller on each side is pivotally mounted.

The pawl element can then by only a single movable part, namely the pawl lever be formed.

The roller axis is generally parallel to the door leaf plane and preferably also lays the tilt axis for the gate. Because of the storage of the pawl lever this axis can be in its release position, for example in vertical or release position at a slight angle to the vertical during the entire door leaf movement hold. If the rope becomes slack, the pawl lever moves through the spring preload in the locked position and then intervenes in the intervention training, so that the door leaf continues to be held on its roller axis even when triggered.

The intervention training can be particularly advantageous and simple directly on or in the Form the guide rail for the rollers. In the embodiment just described with a pawl lever pivotally mounted on the roller axis can be, for example about the area of the guide rail which is parallel to the gate opening plane and forms a path for a roller be provided with the intervention training. In a particularly simple embodiment is simply on the entire course of the guide rail on this to the gate opening level parallel area provided a series of openings, the engagement end the pawl is accordingly designed to end at an acute angle, that this end in the pawl released by slackening the rope in the The next opening is seen in the direction of the fall and there is the door leaf against falling guaranteed.

A rope engagement is preferably not provided in the center of the second lever arm, but instead off-center, on the intervention training used in the intended use Longitudinal half of the two-armed lever, which forms the pawl. This off-center The arrangement provides torque when the rope is taut the pawl, against the bias. Equivalent to the off-center arrangement would be a corresponding bending of the lever arms to each other or a corresponding one Relocation of the lever axis on the pawl lever body. The off-center Arrangement is currently preferred because of the simpler manufacture and for reasons of space.

The preload itself is selected such that it is in the entire swivel or tilt angle range the door leaf has sufficient voltage to release the pawl poses, but still never becomes so large that it is not overcome by the cable tension can be. A cover element can also be provided in the upper area, to cover the top opening or openings against engagement of the pawl. This way the door remains even if the torsion spring tension is slightly reduced or poorer tuning functional, still manufacturing the guide rail as a piece of an endless profile with a continuous series of Openings industrially advantageous is possible. On the other hand, due in particular of the cover element, the guide rails on the left and right are identical and to be easier to manufacture industrially. Then they will be on the left opposite the right Arrangement upside down attached to the frame, e.g. welded. The each top opening, which is necessary on the other side as the bottom opening, can then be secured by an engagement part against engagement by the pawl. Instead of or in addition to a cover function, such an engagement part could, for example can be formed by a clip that can be clipped on, can also be designed such that it acts as a kind of catch for the roller for holding the door leaf in the uppermost position and to provide a markable opening position for the operator Latching threshold works.

In the alternative solution according to claim 4, the pawl or one having this The pawl lever is not mounted directly on the roller axle, but indirectly via a pawl holder, which in turn is preferably itself pivotable on the roller axis is stored. The pawl holder can therefore always be in the same position for engaging training maintained throughout the movement of the door leaf. The handle holder can then be designed as described above Pawl lever or other locking device in any configuration be provided. It would also be possible, for example, on such a jack holder to provide a bolt which triggers when the rope becomes slack, which is in a fixed position Abutment engages. However, the preloaded in the locked position is also advantageous here Pawl provided by the cable tension against this preload in their release position is pulled. Such training comes without additional elements like only when you get slack from the path of the locking pin or pawl or the like trigger elements to be removed. It is also advantageous here the pawl is formed on a two-armed pawl lever, the first lever arm the pawl forms and for example also with a tapered The end of the engagement is provided and on the other lever arm an attack for the door leaf side End of the corresponding cable pull unit is provided. Because of the handle holder which this pawl is pivotally mounted, the pawl can be pivoted for example, also form perpendicular to the roller axis. In such a case are the engagement designs on an area extending perpendicular to the door opening the guide rail can be formed. Advantageously, here too, there are simply openings provided in which the pointed engagement end of the pawl engages.

The gate or torsion spring shaft must be special for the arrangement described here be compact. The torsion spring (s), if any, are not allowed have a large diameter. With the gates of the type in question is also the The load on the torsion spring is completely different than that of a sectional door, for example. at The goal of the type in question is the weight of the goal to be compensated namely the same throughout the entire course of the goal. For this reason, you have so far no torsion springs used as counterbalancing device, but counterweights, because their force remains the same, while the spring force of counterbalance springs changes constantly when the gate runs. The torsion spring arrangement must correspond to the compact dimensions of the gates considered here over a long torsion area, for example more than 20 revolutions. For example, the torsion spring is manufactured by the manufacturer biased by approx. 30 turns. So the torsion spring load is here especially high at the beginning of an opening movement. At first tests you have To achieve the compact dimensions, a solid rod is used as a torsion spring shaft. Due to the torsion spring load, a wave has bent strongly and an egg movement performed "like a sausage", resulting in restless running, shortened lifespan and has made unwanted noise.

According to a particularly preferred embodiment of the invention, this is now used as a gate shaft designated drive shaft in sections or entirely as a hollow shaft. The The gate shaft is therefore formed entirely or in sections by a tube. Such a pipe has with the same mass, a larger outer diameter and a larger resistance bending moment as a full wave. This makes the deflection - even when flanged Drive to the door shaft and the resulting weight - less. A lesser Deflection reduces the bearing load and thus prevents a safety-relevant one Failure of the counterbalance device even after long and frequent use without maintenance. However, additional support bearings can be dispensed with.

By using a hollow shaft as a door shaft and preferably as a torsion spring shaft A torsion spring device is the one mentioned above for transport and assembly extraordinarily advantageous design and arrangement of the drive unit within the area covered by the frame without disadvantages in terms of smooth running and durability allows.

In other types of gates with torsion spring shafts, the specific ones mentioned occur Problems don't arise. For example, the torsion spring in sectional doors is preloaded conically. An egg to the extent as in the tilting gates in question with the inventive compact pre-assembled power source unit does not occur there. Be too Sectional doors in individual parts and not preassembled to the extent that is discussed here standing single-leaf overhead gates.

The largest possible tube diameter would be desirable for the stability of the door shaft. However, there are the limited dimensions available, because the tube must be able to engage in the torsion spring and this should have a diameter have less than the height or width of the parallel frame spar. In particular is but the storage of a thick pipe is problematic, because this would on the one hand for the required compact arrangement of large bearing elements, but also with the Diameter increasing bearing friction forces result. In a further preferred embodiment is provided, the gate shaft formed with a tubular profile with different thickness sections to be provided, namely thicker sections that stabilize the shaft against bending, and thinner, on which the shaft is mounted. The shaft ends are advantageous stored and thus the end portions of the tube shaft having a tubular profile executed thinner than the central portion extending between the bearing elements. Training with thinner and thicker sections is in different ways possible. According to an advantageous embodiment, the door shaft is formed in one piece with conical transition areas between sections of different diameters. In a further advantageous embodiment, the door shaft is made of different tubes Diameter joined together, for example, one end of a thinner Pipe in a thicker pipe by means of a (spline) toothing inserted in a thicker manner is. Instead of splines, there are other non-rotatable connections (Welding, split pin connections, ...) conceivable for pipes of different diameters.

In principle, it is also sufficient to achieve the advantages explained above if the door shaft is only tubular in the areas relevant to stability. The Pipe profile does not have to be circular over the entire wavelength, it could also be For reasons of stability, other tube profile shapes (square, star-shaped, with reinforcement approaches, ...) are used.

The advantages according to the invention can also be achieved with generic (canopy) gates achieve their door leaves and weight compensation devices for mounting on one Wooden frame as can be seen in EP 0 513 773 A1 - to that for further details is explicitly referenced - are preassembled without frame but with fittings.

It is further emphasized that the claims appended here are attempts at formulation are to be seen. The inclusion of a feature in one of the claims means not that this characteristic is essential or to be considered essential, the characteristics of the claims and features disclosed in the description are interchangeable.

Fig. 1

eine perspektivische Rückansicht eines Einblatt-Überkopf-Kipptores in geschlossenem Zustand;

Fig. 2

ein perspektivische Rückansicht des Kipptores nach Fig. 1 in geöffnetem Zustand zur Verdeutlichung des Bewegungsablaufes des Kipptores;

Fig. 3

eine perspektivische Rückansicht einer ersten Ausführungsform einer oberen Ecke des Kipptores nach Fig. 1;

Fig. 4

eine perspektivische Rückansicht eines seitlichen Bereichs des Kipptores nach Fig. 1 mit einer Rollenführung;

Fig. 5 - 7

verschiedene Ansichten einer Absturzsicherungsvorrichtung für das Kipptor in einer ersten Ausführungsform;

Fig. 8 - 10

verschiedene Ansichten einer zweiten Ausführungsform einer Absturzsicherungsvorrichtung für das Kipptor;

Fig. 11

eine Draufsicht auf eine dritte Ausführungsform einer Absturzsicherungsvorrichtung für das Kipptor;

Fig. 12a - 12c

verschiedene Ansichten eines bei der dritten Ausführungsform verwandten Klinkenhalters zum Halten einer Sperrklinke;

Fig. 13

eine Draufsicht auf einen bei der Ausführungsform in Fig. 11 verwandten, die Sperrklinke aufweisenden Sperrklinkenhebel;

Fig. 14a - 14b

verschiedene Ansichten einer zum Vorspannen des Sperrklinkenhebels nach Fig. 13 bei der Ausführungsform von Fig. 11 in die Sperrstellung verwendeten Feder;

Fig. 15

eine perspektivische Detailansicht der Absturzsicherung gemäß der Ausführungsform der Fig. 5 - 7 in besonders bevorzugter Ausgestaltung;

Fig. 16

eine Draufsicht auf eine zum Vorspannen des Sperrklinkenhebels nach Fig. 5 - 7, Fig. 8 - 10 und Fig. 15 verwendbaren Feder;

Fig. 17

ein Führungselement zum Führen der Feder von Fig. 16;

Fig. 18

eine perspektivische Rückansicht einer zweiten Ausführungsform der oberen Ecke des Einblatt-Überkopf-Kipptores in geschlossenem Zustand;

Fig. 19

eine perspektivische Ansicht einer bei dem Kipptor nach Fig. 1 verwendeten zweiten Ausführungsform einer Torsionsfederwelle;

Fig. 20

eine perspektivische Ansicht einer dritten Ausführungsform einer bei dem Kipptor verwendbaren Torsionsfederwelle; und

Fig. 21

eine perspektivische Ansicht eines Teils der Torsionsfederwelle gemäß Fig. 20.

Advantageous embodiments of the invention are explained in more detail below with reference to the drawings attached here. It shows:

Fig. 1

a rear perspective view of a single-leaf overhead tilt gate in the closed state;

Fig. 2

a rear perspective view of the tilt gate of Figure 1 in the open state to illustrate the movement of the tilt gate.

Fig. 3

a rear perspective view of a first embodiment of an upper corner of the tilt gate of FIG. 1;

Fig. 4

a rear perspective view of a side portion of the tilting gate of Figure 1 with a roller guide.

5 - 7

different views of a fall protection device for the tilting gate in a first embodiment;

8-10

different views of a second embodiment of a fall protection device for the tilting gate;

Fig. 11

a plan view of a third embodiment of a fall protection device for the tilt gate;

Figures 12a-12c

different views of a pawl holder used in the third embodiment for holding a pawl;

Fig. 13

a plan view of a pawl lever which is used in the embodiment in FIG. 11 and has the pawl;

14a-14b

different views of a spring used for biasing the pawl lever according to FIG. 13 in the embodiment of FIG. 11 into the locked position;

Fig. 15

a detailed perspective view of the fall protection according to the embodiment of Figures 5-7 in a particularly preferred embodiment;

Fig. 16

5 shows a top view of a spring which can be used for pretensioning the pawl lever according to FIGS. 5-7, FIGS. 8-10 and FIG. 15;

Fig. 17

a guide member for guiding the spring of Fig. 16;

Fig. 18

a rear perspective view of a second embodiment of the upper corner of the single-leaf overhead tilt gate in the closed state;

Fig. 19

a perspective view of a second embodiment of a torsion spring shaft used in the tilting gate according to FIG. 1;

Fig. 20

a perspective view of a third embodiment of a torsion spring shaft usable in the tilting gate; and

Fig. 21

20 shows a perspective view of part of the torsion spring shaft according to FIG. 20.

The one-leaf overhead gate shown in FIGS. 1 to 4 - here a tilting gate - has a rigid one Door leaf 1 and a frame 2. On vertical side rails 3 and 4 of frame 2 are only vertically extending guide rails over a portion of the side rails 5 arranged. On the upper horizontal frame spar 6 is a door leaf weight compensation device 7 arranged. This is formed by a torsion spring shaft 8, which carries rope drums 9 at both ends and opposite the side rail 6 is biased by a single torsion spring 10.

On the cable drums 9 are left and right rope units formed by a wire rope 11, respectively held a cable pulling device. The free ends of the wire ropes 11 each engage a fall arrest device 12, which will fall asleep one of the wire cables 11 engages the door leaf 1 through a series of openings 13 formed engagement forms, which are distributed along the guide rails 5 are, fix and in normal operation transfers the cable pull to the door leaf 1.

As can best be seen from FIGS. 3 and 4, the guide rail 5 has approximately a J-profile shape, i.e. a profile shape with a web 5a and two legs 5b and 5c, of which a first leg 5b is flat and essentially like the U-leg of a U-profile running perpendicular to the web 5a and the second leg 5c as the C-leg of a C-profile is designed to form a roller conveyor, which is curved in the form of a groove.

In the embodiment shown in Figs. 1 to 4, the series of openings 13 formed with the same distance from one another in the C-leg 5c. The guide rail 5 and thus their ends 5d and 5e are relative to a normal to the longitudinal direction of the guide rail extending center plane of the guide rail 5 mirror image trained to each other. In this way, identical guide rails 5 are formed Can be used on both vertical frame bars 3 and 4 and on the left and right. That in each case upper end 5d of left and right guide rails 5 is provided with a bracket 5f, that on the end 5d, more precisely on an existing there transversely to the longitudinal direction of the guide rail extending first slot 5g is clipped. The bracket 5f engages with its free end 5fb, which has an inwardly bent region 5fa a second elongated hole 5h in which extends longitudinally to the guide rail longitudinal direction the roller conveyor formed by the C-leg 5c. Next is 5d at the upper end inside the guide rail 5 a through a rubber buffer 5i with dovetail-shaped Roller stop provided at the end.

The door leaf 1 also has, as can best be seen from FIG. 4, on its two door leaf side edges 14 on concentric roller axes 15, which are parallel to the door leaf level extend horizontally, mounted rollers 16. The rollers 16 are in the guide rails 5 led to vertical movement. As can be seen from FIGS. 1-4, the Rollers 16 not on the lower edge of the door leaf 17, but near the horizontal center line M of the door leaf 1 arranged. Between the rollers 16 and the upper edge 18 of the door leaf engages a lever mechanism formed from side levers 19 on the door leaf 1 at the door leaf side edges thereof 14 on. The levers 19 are fixed at one end to the frame 2 in the vicinity of the upper frame spar 6 and at the other end on the door leaf side edges 1 over 5 U-profile pieces 35 mounted on the guide rails.

In Fig. 1 the door leaf 1 is in its vertical closed position and in Fig. 2 in its horizontal Open position shown. In the course of the opening movement, the rollers 16 guided vertically upwards within the guide rails 5. The door leaf leads 1 a pivoting or tilting movement about the roller axis 15, which is caused by the lever 19 is performed. The bottom edge 17 of the door leaf swings out of the door opening plane outside, which is why the gate described here is in principle also a swing gate could designate. In the open position, the rollers 16 engage on the bracket 5f.

In Fig. 1 the gate is ready for transport from the manufacturer to the construction site and for simple Final assembly shown pre-assembled. The wire ropes 11 sit on the fall arrest device 12 on. There is only one spring 10 for weight compensation on the one to be locked Room facing the inside of the gate. This is in the form of a torsion spring 10 trained. If the torsion spring 10 were to break, both would be immediately Wire ropes 11 relaxed, and then would immediately respond to a slack rope Trigger fall protection device 12 by engaging in the next engagement formation 13.

The following are various embodiments for the fall arrest device 12 explained in more detail.

A first embodiment of the fall protection device 12 is shown in FIGS. 5 to 7 clarified in more detail.

Fig. 5 shows. the fall protection device 12 in a sectional side view, Fig. 6 in sectional rear view and Fig. 7 shows the fall protection device 12 in plan view.

The fall protection device 12 comprises an approximately U-shaped roll holder 20, on which the roller 16 is mounted by means of a bearing sleeve 21. This U-shaped profile Roller holder 20 is attached to the corresponding side door leaf side edge 14 and has corresponding screw openings 22 for this purpose. The rollers 16 are in the approximately J-shaped guide rails 5 out. Also on the bearing sleeve 21 stored, namely pivotable about the roller axis 15, is a pawl element, which is designed here as a two-armed pawl lever 23. On a first lever arm 24, the wire rope 11 is suspended. The second lever arm 25 acts with its free point tapering engagement end 29 as a pawl 26. As shown in Fig. 6, the second Lever arm 25 formed such that the engagement end 29 of the pawl 26 within the guide rail 5 is arranged. As can be seen from Fig. 5, which is the fall arrest device 12 shows in the case of engagement with slack rope 11, is the sharp engagement end 29 of the pawl 26 towards one of the two parallel to the plane of the lock Profile legs 5b, 5c of the guide rail 5 to be angled towards the door opening, so that the pointed engagement end 29 towards this profile leg - at the present one Example of the C-profile leg 5c - is sufficient, in which the at regular intervals Engagement training in the form of the openings 13 are provided. Have the openings 13 in length and width a greater extent than the engagement end 29, so that this can easily engage in the openings 13.

The wire rope 11 is not attached to the middle of the first lever arm 24, but as far as it is as far as possible from the side from which on the other lever arm 25 the engaging end 29 protrudes. In addition, a spring 30 is provided which the pawl lever 23 biases into the engagement position shown in FIG. 5.

If the wire rope 11 is pulled tight, and thus the weight compensation device 7 is effective, the pawl lever 23 is pulled against this bias, whereby the off-center attachment of the end of the wire rope 11 on the door leaf side by application a corresponding torque helps.

The tension of the spring 30 is selected such that it also in the open position shown in FIG. 2, in which the roll holder 20 is at approximately 90 ° to the longitudinal direction of the pawl lever 23, on which the wire rope 11 engages, extends at an angle, is still sufficient Preload for triggering the pawl 26 with slack wire rope 11 provides. In 1, the pawl lever 23 and the reel seat 20 almost parallel to each other. Due to the rotation, the bias of the spring 30 is in this position somewhat higher; but it is still much less than that by the Torsion spring 10 transmitted to the pawl lever 23 via the wire rope tension Force that holds the pawl 26 in its release position.

8 to 10 is a second embodiment of the fall protection device 12 shown. This differs essentially from the first embodiment only by the shape of the pawl lever 23. The function and other training is substantially the same as that in the first embodiment, so that to the above Full explanations can be referenced. In both embodiments the pawl levers 23 can be easily manufactured as sheet metal stampings. The end of the procedure 29 of the second embodiment is not tapered like that of the first embodiment, but formed by a slightly angled tab 27.

In the third embodiment shown in FIG. 11, a pivotable on the Roller axis 15 on the roller holder 20 pawl element 31 one around Roller axis 15 pivotally mounted pawl holder 32 and a pawl 33 pawl lever 37. The actual pawl 33 is therefore not immediate pivotable about the roller axis 15 as in the first two embodiments, but only indirectly on the pawl holder 32 on the roller shaft 15. The pawl holder 32 comprises a concentric to the roller axis 15 Sleeve 34 and a holding element 36 mounted thereon, which is shown in detail in FIG is shown. On this holding element 36 is the two-armed pawl 33 Pawl lever 37 about a pawl axis running perpendicular to the roller axis 15 44 pivoted. In turn, a receptacle is on a first lever arm 38 39 provided for hanging the door leaf end of the wire rope 11 while the second lever arm with the free engagement end 29 forms the pawl 33. How 13 shows, in this embodiment the wire rope attack is not off-center formed on the two-armed pawl lever 37, but the bearing 40 for the Pawl axis 44. The pawl lever 37 thus pivots in a direction parallel to the door opening Level when the wire rope 11 becomes slack, driven by the pretension a spring 41 shown in more detail in FIG. 14.

Contrary to the spring preload of the spring 41, the one formed on the pawl lever 37 Pawl 33 by wire rope tension in the solid lines in Fig. 11 shown release position 42 pulled. The blocking position 43 is partially dashed Lines shown in Fig. 11.

15 is a detailed representation of the first shown schematically in FIGS. 5-7 Embodiment of the fall protection reproduced.

In the embodiments of the fall protection device 12 according to FIGS. 4-10 the pawl lever 23 moves relative to each opening and closing operation the door leaf 1. The spring 30 is in the position shown in FIG. 6 by 180 ° pivoted pawl lever 23 unstressed and in the position shown in Fig. 6 stretched by 180 °. In operation, the pawl lever 23 moves according to the Door leaf movement in an angular range between approximately 180 ° and 90 °. The spring 30 is in Operation always pre-stressed by at least 90 °. Because of the constant strain the spring 30 could cause the spring 30 to fail due to spring breakage if used for a prolonged period come. Such a spring break would remain largely unnoticed and would have the fatal consequence of the failure of the fall arrest device 12.

In the first prototypes, the spring 30 used for pawls was customarily narrow. H. on Touching her coils - used coiled leg springs. Such leg springs belong to the group of spiral springs, the spring force of which is essentially due to bending and is not achieved by twisting. Bends can, however permanent use lead to spring breaks.

Fig. 15 shows an embodiment in which a break of the serving for pretensioning Spring 30 avoided despite constant movement load during door operation or is at least highly unlikely.

As shown in Fig. 16, the spring 30 is a - like a coil spring - wound on gap Torsion bias spring with a helical area 102 where the individual spring turns 104 are wound at a distance such that the windings 104 overlap Relative swivel range from 0 - 180 ° of that to be attached to door leaf 1 Do not touch the roll holder 20 and the pawl lever 23. The spring 30 has further a first spring leg 106 for gripping the pawl lever 23 and a second Spring legs 108 for contact with the roll holder 20.

Next is between the roller axis 15, more precisely between that which cannot be seen in FIG. 15 Bearing sleeve and the spring 30, a bushing element 110 is used, which is shown in FIG. 17 individually is shown. This bushing element 110, which serves as a spring guide element, has a tubular or sleeve-shaped section 112 and a connecting part, here in the form of a clothespin-shaped guide or sensing portion 114. The acquisition section 114 has a recess 116 into which the first spring leg 106 is inserted.

In this way, the bushing element 110 always moves together with the first one Spring leg 106 and, since this in an opening in the pawl lever 23rd engages positively, also always with the pawl lever 23. The detection section 116 guides the first spring leg 106 in a circular movement about one to the sleeve-shaped portion 112 concentric axis. This prevents the first one Spring leg 106 with respect to the spiral area 102 without twisting the same can be bent. A relative pivoting of the pawl lever and Roll holder 20 therefore only leads to a rotation of the helical region 102 and not to a deflection of the spring leg 106. In this way, the spring 30 is always on Twisting and not loaded on bending. The spiral area 102 never lies directly on a sleeve moving relative to the first spring leg, such as for example, the bearing sleeve 21, but at most on the sleeve-shaped section 112, which moves with the first spring leg 106.

In embodiments not shown, the tubular or sleeve-shaped section is sufficient 112 only partially into the spiral area 102, so that the near the second spring leg 108 lying turns 104 while reducing the diameter of the helical area 102 at most on a relative to the roll holder 20 and thus relative to the second spring leg 108 not moving part, namely for example the bearing sleeve 21 rests, while turns 104 near the first spring leg 106 Reduction of the diameter of the spiral area 102 at most on the sleeve-shaped Section 112.

The helical region 102, the bearing sleeve 21 and the tubular or sleeve-shaped section 112 are, however, dimensioned such that the spring 30 in an arrangement in which it is under tension Condition their diameter reduced, even at maximum tension (180 ° relative rotation between pawl lever 23 and roll holder 20) not in the spiral area 102 inserted elements 110, 21 rests.

The socket member 110 can be made of any suitable material, preferably solid Plastics exist.

In the following, advantageous embodiments of the weight compensation device 7 used here as a power source is explained in more detail.

The torsion spring 10 of the weight compensation device 7 has an inner diameter, for example from about 30 to 40 mm, preferably about 35 mm. Inside is the torsion spring shaft 8 introduced. The torsion spring shaft 8 is at its end portions 50 in the frame 2 attached bearing elements 51 stored. The bearing elements 51 are essentially U-shaped with a web 52 fastened to the frame 2 and two each Bearing 54 for the U-legs 53 having the end section 50. The cable drum 9 is each arranged between the two U-legs 53.

The torsion spring shaft 8 is in the embodiments shown in FIGS. 18 to 21 as Hollow shaft tubular. This reduces an inclination of the torsion spring shaft 8, under load the uneven bias of the torsion spring 10 in the course of the gate bend.

In order to have stability, the tubular torsion spring shaft 8 is to have a diameter of have more than 20 mm, preferably of about 25 mm or more. On the other hand, the equipped with tubular profile torsion spring shaft 8 at one of its end portions 50 Drive or the like can be flanged. This would normally be about an annular flange and screwing happen. With a diameter of 25 mm you get with the ring flange but already over the dimensions of the frame (e.g. the upper one Zargenholmes). For this reason, the tubular torsion spring shaft is 8 in their middle section 55 thicker (e.g. approx. diameter 25 mm) and towards their end sections 50 tapered, for example to a diameter of about 15 mm. The torsion spring shaft 8 is at its thinner sections, i.e. here the end sections 50, stored. This means that there is significantly less bearing friction and less bearing resistance because of the smaller pipe diameter. On the other hand, the large tube profile a stability advantage. This is particularly advantageous for gates with a drive. You have a stable one Pipe profile in the middle and a thinned tube profile at the end.

In the embodiment of the tubular torsion spring shaft shown in FIGS. 18 and 19 8 this is formed by a one-piece tube 56. The tube 56 shows two End portions 50 with a smaller diameter, the middle portion 55 with a larger Diameter and a conical transition region 57.

This tube 56 is manufactured as follows: The tube 56 is pulled. There is one in the transition region 57 between the thin and the thick diameter conical transition distance, the angle of the conical piece to the horizontal approx. 15 to 20 °. The longitudinal extent of the conical transition amounts to, for example 35 - 45 mm, preferably approx. 40 mm.

20 and 21 is yet another embodiment of a torsion spring shaft 8 usable hollow shaft shown. It also has the thicker middle section 55 and the thinner end portions 50. The sections 55, 50 of different diameters but are formed here by individual tubes 58, 59. That forming the end portions 50 thinner tubes 58 each have splines 60 at one end. That the middle section 55 forming thicker tube 59 is corresponding at its two ends Internal teeth formed into which the splined ends of the thinner Intervene pipes 58 in the assembled state.

The described designs of fall protection devices 12 and weight compensation devices 7 are also suitable for a structure similar to that in FIG. 1 Gate with lower rollers and upper lever mechanism, but which does not swing out, so on the lower edge of the door is stored in the vertical track, or for a door with two pairs of rollers - such as that in DE 100 05 745 A1, on those for further details expressly referenced, described Art.

Another embodiment of a gate is obtained by replacing the one in the drawings Frame 2 shown by a - possibly already existing on site or wooden frame to be made. The door leaf 1 is then analogous to that in EP 0 513 773 A1 (see in particular FIGS. 4 to 6 and the associated text) shown and The door leaf described with its fittings is delivered pre-assembled to the construction site. For for further details, reference is made in full to EP 0 513 773 A1.

• einem im ganzen nach oben abkippenden starren Torblatt (1),
• einer Zarge (2),
• gegebenenfalls einer Seilzugeinrichtung (11, 9), welche einenends am Torblatt (1) und anderenends an einer Kraftquelle, insbesondere einer Gewichtsausgleichseinrichtung (7), angreift, und
• gegebenenfalls einer Absturzsicherungsvorrichtung (12).

Accordingly, a single-leaf overhead door has been described with:

• a rigid door leaf (1) which tilts upwards as a whole,
• a frame (2),
• optionally a cable pulling device (11, 9) which acts on one end on the door leaf (1) and on the other end on a power source, in particular a weight compensation device (7), and
• if necessary, a fall protection device (12).

• dass eine Torsionsfederwelle (8) der Gewichtsausgleichseinrichtung nur eine einzelne Torsionsfeder (10) aufweist;
• dass eine Torwelle der Kraftquelle, insbesondere die Torsionsfederwelle (8) als Hohlwelle ausgebildet ist;
• dass eine Feder (30) zum Vorspannen einer Sperrklinke der Absturzsicherungsvorrichtung ausschließlich auf Verdrehung ihres Wendelbereiches (102) beansprucht ist; oder/und
• dass eine Sperrklinke der Absturzsicherungsvorrichtung an einem gegenüber dem Torblatt (1) schwenkbaren Klinkenhalter gelagert ist.

In order to make the door more cost-effective, but nevertheless safer during manufacture, transport and assembly, it is proposed that

• that a torsion spring shaft (8) of the weight compensation device has only a single torsion spring (10);
• that a gate shaft of the power source, in particular the torsion spring shaft (8), is designed as a hollow shaft;
• that a spring (30) for biasing a pawl of the fall arrest device is only subjected to rotation of its helical region (102); or and
• that a pawl of the fall protection device is mounted on a pawl holder which can be pivoted relative to the door leaf (1).

LIST OF REFERENCE NUMBERS

1

door leaf

2

frame

3

left vertical frame spar

4

right vertical frame spar

5

guide rail

5a

web

5b

first leg (U-leg)

5c

second leg (C-leg)

5d

top end

5e

lower end

5f

clip

5fa

curved area

5FB

free end

5g

first slot

5h

second slot

5i

rubber buffers

6

upper horizontal frame spar

7

Torblattgewichtsausgleichseinrichtung

8th

torsion spring

9

cable drum

10

torsion spring

11

Wire rope

12

Fall guard

13

Openings (intervention training)

14

Torblattseitenränder

15

roller axis

16

role

17

lower door leaf edge

18

upper door leaf edge

19

lever

20

U-shaped roll holder

21

bearing sleeve

22

Screw holes.

23

Ratchet lever

24

first lever arm

25

second lever arm

26

pawl

27

angled tab

29

engaging end

30

Spring to pretension the pawl

31

Pawl member

32

Pawl holder

33

pawl

34

shell

35

U-profile piece on the door leaf side Storage of the levers 19

36

retaining element

37

Ratchet lever

38

first lever arm

39

Holder for wire rope 11

40

Storage of the pawl lever 37

41

Spring to preload the Pawl lever 37

42

Normal operating position, release position the pawl lever 37

43

Position of the pawl lever 37 in case of torsion spring break or cable break

44

jack axis

50

end

51

bearing element

52

web

53

U-leg

54

camp

55

middle section

56

one-piece tube

57

Transition area

58

thinner tube

59

thicker tube

60

spline

102

Wendel area

104

turns

106

first spring leg

108

second spring leg

110

female member

112

tubular or sleeve-shaped section

114

detecting section

116

deepening

M

horizontal door leaf centerline

Claims (24)

Single-leaf overhead gate with: a rigid door leaf (1) which tilts upwards as a whole, a frame (2), preferably a cable pulling device (11, 9) which acts on one end on the door leaf (1) and on the other end on a power source, in particular a weight compensation device (7), and preferably a fall arrest device (12). characterized, that a torsion spring shaft (8) of the weight compensation device has only a single torsion spring (10); that a gate shaft of the power source, in particular the torsion spring shaft (8), is designed as a hollow shaft; that a spring (30) for biasing a pawl of the fall arrest device is only subjected to rotation of its helical region (102); or and that a pawl of the fall protection device is mounted on a pawl holder which can be pivoted relative to the door leaf (1). Single-leaf overhead tilt gate, in particular according to claim 1, with: a rigid door leaf (1) which can be tilted upwards from a substantially vertical closed position into a substantially horizontal open position, a frame (2), the guide rails (5) running in a vertical direction for a pair of door leaf guide elements articulated on the door leaf (1) for vertical guiding of the door, in particular for a pair on the side of the door leaf (1) for guiding the same about a roller axis ( 15) rotatably articulated rollers (16), and a lever mechanism (19) which is fixed at one end to the frame (2) and at the other end to the side door leaf edges (14) of the door leaf (1) above the point of application of the door leaf guide elements (16), assigned, a cable pulling device (11, 9) which comprises on each door leaf side a cable unit formed from a traction means, in particular a rope and more particularly a wire rope (11), or from a plurality of traction means guided in parallel, which ends at one end on the door leaf (1) and at the other end attack a weight compensation device (7), and a fall protection device (12) which secures the door leaf (1) against falling when a cable unit (11) of the cable pull device becomes slack, characterized in that the weight compensation device (7) is formed by a torsion spring shaft (8) which is attached to the frame (2) and extends along an upper horizontal frame spar (6) and has only one torsion spring (10). Single-leaf overhead tilt gate, in particular according to claim 1 or 2, with: a rigid door leaf (1) which can be tilted upwards from a substantially vertical closed position into a substantially horizontal open position, a frame (2, 4, 6) formed from frame spars (2), the guide rails (5) running in a vertical direction for a pair of door leaf guide elements articulated on the door leaf (1) for guiding the door, in particular for a pair on the side of the door leaf ( 1) to guide the same about a roller axis (15) rotatably articulated rollers (16), and a) extending in a horizontal direction guide rails for a further, from the aforementioned pair of door leaf guide elements spaced upwards on the door leaf articulated pair of upper door leaf guide elements or b) a lever mechanism (19) which is fixed at one end to the frame (2) and at the other end to the side door leaf edges (14) of the door leaf (1) above the point of application of the door leaf guide elements (16), are assigned, and a cable pulling device (11, 9) which comprises on each door leaf side a cable unit formed from a traction means, in particular a rope and more particularly a wire rope (11), or from a plurality of traction means guided in parallel, which ends at one end on the door leaf (1) and at the other end a power source (7), attack, characterized in that the power source has a unit (7) which is pre-assembled on the door from a door shaft (8) which is mounted on the frame (2) and extends along a frame spar (6), and at least one traction means drum (9) Unit in its overall dimension measured in height and width direction, i.e. parallel to the frame plane, lies within the overall dimension of the frame measured in height and width direction and therefore not upwards, not to the side and not into the door opening framed by the frame (2) emerges via the frame (2),
and that the gate shaft (8) is designed in sections or entirely as a hollow shaft. Single-blade overhead tilting or pivoting arm, in particular according to one of claims 1 to 3, with: a rigid door leaf (1) which tilts upwards from a substantially vertical closed position into a substantially horizontal open position, a frame (2) in which the door leaf (1) is guided, a cable pulling device (11, 9) which comprises on each door leaf side a cable unit formed from a traction means, in particular a rope and more particularly a wire rope (11), or from a plurality of traction means guided in parallel, which ends at one end on the door leaf (1) and at the other end a power source, in particular a weight compensation device (7), and a fall protection device (12) which secures the door leaf (1) against falling when a cable unit (11) of the cable pulling device becomes slack and comprises a pawl lever (23, 37) which, directly or indirectly on the door leaf during the opening and closing process relative to the door leaf (1) is pivotally mounted and is elastically pretensioned in the locked position by a spring (30) and on which the door leaf-side end of the cable pulling device (11, 9) acts, the cable pulling forces being transmitted to the door leaf (1) via the pawl lever (23, 37) and the pawl lever is held in the release position by the cable tension of the cable device (11) against the bias of the spring (30), characterized in that the spring (30) in the entire pivoting area between the pawl lever (23) and the door leaf (1) is only subjected to rotation of its helical area (102). Single-blade overhead tilting or pivoting arm, in particular according to one of claims 1 to 3, with: a rigid door leaf (1) which can be tilted upwards from an essentially vertical closed position into an essentially horizontal open position, a frame (2) on which the door leaf (1) is guided, a cable pulling device (11, 9) which comprises on each door leaf side a cable unit formed from a traction means, in particular a rope and more particularly a wire rope (11) or from a plurality of traction means guided in parallel, which has one end on the door leaf (1) and the other end on one Force source, in particular on a weight compensation device (7), and a fall protection device (12) which secures the door leaf (1) against falling when a cable unit (11) of the cable pull device becomes slack, characterized in that the fall protection device (12) has a pawl element (31) pivotally mounted on the door leaf (1) relative to the door leaf (1), preferably pivotably mounted about the common roller axis (15) of a pair of door leaf guide rollers (16) .
that the pawl element (31) has a pawl holder (32) pivotably mounted on the door leaf (1), preferably on the roller axis (15), and a pawl lever (37),
that the pawl lever (37) is pivotally mounted on the pawl holder (32) about a pawl axis (44), preferably in such a way that the pawl axis (44) is substantially perpendicular to the pivot axis of the pawl holder (32), more preferably perpendicular to the roller axis ( 15), runs,
that the end of the cable pulling device (11, 9) on the door leaf side engages on the pawl lever so that the cable pulling forces are transmitted to the door leaf (1) via the pawl lever (37), that the pawl lever is elastically pretensioned in the blocking position and is tensioned by the cable pulling device (11 ) is held against this bias in the release position. Tilting or swinging arm according to one of the preceding claims,
characterized in that the individual turns (104) of the helical region (102) are wound in such a way that they do not rest on one another in the relaxed state. Tilting or swinging arm according to one of the preceding claims,
characterized in that the windings (104) of the spring (30) at least partially encompass an insert (110, 112) which moves with the pawl lever (23). Gate according to one of the preceding claims,
characterized in that the insert is formed by a bushing element (110) which moves with the pawl lever. Gate according to one of the preceding claims,
characterized in that the bushing element (110) has a bearing part (112) inserted between the spring (30) and a bearing axis (21, 15) for the pawl lever (23) and a connecting part (114) connectable to the pawl lever (23). Gate according to one of the preceding claims,
characterized in that the connecting part has a clothespin-like, preferably at one end of the socket element (110) formed detection section (114) which receives the pawl-side spring leg (106) of the spring (30) which is designed as a spaced coil spring. Tilting or swinging arm according to one of the preceding claims,
characterized in that the helical area (102) has an inner diameter such that it does not essentially rest on an insert element (110, 21, 15) penetrating the spring in the entire pivoting area between the pawl lever (23) and the door leaf (1). Tilting or swinging arm according to one of the preceding claims,
characterized in that the rollers (16) are arranged closer to the center of the vertical side door leaf edges (14) than to the lower door leaf edge (17) in the lower half of the door leaf (1). Tilting or swinging arm according to one of the preceding claims,
characterized in that the pawl lever (23) is pivotally mounted about the common roller axis (15) of the two rollers (16). Tilting or swinging arm according to one of the preceding claims,
characterized in that the weight compensation device (7) is preassembled on the gate, that the torsion spring shaft (8) is mounted on the frame (2) and extends along a frame spar (6), that the weight compensation device (7) has at least one traction means drum (9) and in its overall dimension measured in the height and width direction, ie parallel to the frame plane, lies within the overall dimension of the frame measured in the height and width direction and thus not upwards, not to the side and not into the door opening framed by the frame (2) emerges over the frame. Tilting or swinging arm according to one of the preceding claims,
characterized in that the torsion spring shaft (8) is designed in sections or entirely as a hollow shaft. Tilting or swinging arm according to one of the preceding claims,
characterized in that the gate shaft (8) is mounted on bearing sections (50) thereof by a plurality of bearing elements (51) fastened at a distance from one another on the frame (2) and is made thinner on the bearing sections (50) than in its remaining course (55 ). Tilting or swinging arm according to one of the preceding claims,
characterized in that a hollow shaft forming the gate or torsion spring shaft (8) has a thicker central section (55) and towards its ends a respective thinner end section (51) than the bearing section. Tilting or swinging arm according to one of the preceding claims,
characterized in that the gate or torsion spring shaft (8) is formed by a one-piece tube (56) with a conical transition region (57) between a thinner (50) and a thicker (55) section. Tilting or swinging arm according to one of the preceding claims,
characterized in that the gate or torsion spring shaft (8) is essentially formed from a plurality of individual tubes (58, 59) with different diameters, which are non-rotatably engaged or connected to one another. Tilting or swinging arm according to one of the preceding claims,
characterized in that one end of a thinner tube (58) forming the bearing section (50) telescopically and with teeth, in particular spline teeth, is inserted into one end of a thicker tube (59) forming the remaining course (55) of the torsion spring shaft (8) and preferably is wedged. Tilting or swinging arm according to one of the preceding claims,
characterized in that the pawl lever (23) has two lever arms (24, 25), the cable pulling device engaging a first (24) of these lever arms and the pawl (26) on the second lever arm (25) for engagement in one of the Guide rail (5) distributed openings (13) is formed. Tilting or swinging arm according to one of the preceding claims,
characterized in that the cable pulling device (11) on the first lever arm (24) acts off-center on the longitudinal half of the pawl lever (23) facing away from the openings (13) in the intended use. Tilting or swinging arm according to one of the preceding claims,
characterized in that the openings (13) are formed on an area of the frame (2) to be arranged parallel to the plane of the door opening to be closed by the door, in particular on a guide area (5c) of a guide rail (5) forming a path for door leaf guide rollers (16) are. Tilting or swinging arm according to one of the preceding claims,
characterized in that a row of openings (13), which can be detected by the pawl (33) when the corresponding cable units (11) become slack, in or on an area (5a) of the frame perpendicular to the plane of the door opening to be closed by the door , in particular the guide rail (5).

Images