EP1298264A2 - Back-pull drive for a conservatory awning - Google Patents

Abstract

Return motion system for adjusting the hanging device of a winter garden awning arranged between a shaft and a profile has lateral ends each fixed to a carriage or glider (16), and pulling elements (30) fixed to lateral guides (14). At least one end of the pulling elements is fixed to the carriage or glider in different positions. Receiver plates (28) sit on a drive shaft driven by a motor and can be fixed in different positions on the drive shaft. <??>Preferred Features: The pulling elements are formed as toothed belts and the receiver plates are formed as toothed plates which correspond to the belts. The ends of the toothed belts are fixed to the carriages and/or gliders and/or intermediate elements.

Description

The invention is concerned with a balancing system for adjustment a curtain of a conservatory awning, which between a winding shaft and a movable fall profile arranged is that with its lateral ends on a carriage or slider that is set in side guides run and on each of which a flexible tension element is fixed is, each between the two ends of the car or ladder, drive plates driving them positively and deflection rollers are formed all around.

Such a counter-pull system with a continuous endless toothed belt is for example from DE 199 14 543.1 and the US 5 035 091 known. With the counter-pull system described there a revolving tension element has already been proposed, so that the disadvantages of being wound on the drive shaft Tension element with the changing diameter be avoided. Apart from the one chosen in this document elaborate solution of the length compensation arise Problems with rotating, form-fitting with the drive plates interacting tension elements initially during assembly, because the two timing belts on the respective carriage must be set securely and for safe transportation through the drive plate, for example, a certain voltage a timing belt must be adjusted to prevent slipping to prevent safely.

From DE 199 63 862 A1 it is also known that at a traction system of the type described in the introduction the traction elements each have two free ends that are independent are fixed from each other on the respective car.

First of all, this solution offers advantages when installing the Conservatory awning because the pulling element, for example, has no problems first fixed to the carriage, then over the drive plate and guided the pulley and finally with his other end can also be fixed to the car. Differences in length, such as. B. by dimensional deviations or Inaccuracies in assembly can occur easily compensated by the choice of the length of the toothed belt become. Compared to an endless traction element closed as a ring, for example a timing belt, there are cost advantages also in that the tension element is manufactured by the meter and can be processed while up to now for each extension length a special order was necessary, which in particular Considerable production costs for systems with very long extension lengths entailed.

However, such a solution still has the disadvantage that with positively entrained traction elements, the grid is too coarse due to the tooth spacing or hole spacing to achieve a correct alignment of the case profile.

The object of the present invention is a counter-pull system to create that with positively carried Tension elements an improved position of the fall profile allows.

According to the invention the object is achieved in that at least one end of the traction element steplessly to the car or Gliders can be set in different length positions and / or at least one of those driven by a motor Drive shaft seated drive disks continuously can be fixed in different angular positions on the drive shaft is. Through these measures according to the invention individually or in Combination can smoothly compensate for differences in length be so that by setting the timing belt ends in corresponding serrations on the carriage or glider and the associated adjustment only possible step by step and both carriages or gliders are exactly the same Length position are adjustable. This is also an absolute exact fine adjustment of the case profile possible, so that optically conspicuous malpositions are no longer tolerated must and still have the advantages of a form-fitting Take away can be used. It is also possible to get an optimal one Preloading, for example, a toothed belt as a tension element to be able to adjust so that one under all circumstances given positive locking without the risk of slipping is guaranteed.

The use of a toothed belt, from which the tension element can exist completely or partially, is particularly preferred the drive plate as a correspondingly shaped Toothed washer is formed. Timing belts are light, relative inexpensive and enable a secure form fit. Basically, however, is the use of a chain or of a perforated belt is conceivable as a tension element, the driving pulleys then accordingly as a gear or pin disc are trained.

In addition to the preferred embodiment, in which the tension elements made entirely of timing belts, it is an alternative it is also conceivable that the traction elements partly made of toothed belts, between the car or glider and intermediate elements are arranged and over the trained as toothed disks Drive plate run, and otherwise as simple tension elements, z. B. formed as a ribbon, rope, cord or the like are that between the intermediate elements and the carriage are provided and run over the pulleys.

Such tension elements are possible because between the two End positions of the fall profile only part of the tension elements runs over the drive pulleys while in the area of the pulleys no positive entrainment is necessary. By dividing the tension elements into one area each a toothed belt or another, for positive Carrying suitable tension element, and an area from one less expensive tension element, in particular save costs for systems with large extension lengths.

A particularly secure permanent hold results from a preferred embodiment, in which the ends of the tension elements form-fitting on the carriage and / or the intermediate elements are set. Compared to pure clamp connections it prevents the connection from changing over time can loosen or at least adjust, so that under certain circumstances a decrease in the desired tension of the toothed belt would be feared.

An embodiment is particularly preferred in which each at least one end of the toothed belt by a corresponding one Tooth on the carriage or glider or on one the carriage or glider lockable locking element is held. Doing so will be particularly easy Meadow the conditions of the timing belt for positive Determination used.

For example, the toothing on the flank of a Slot in the carriage or glider, in which the toothed belt end to be fixed can be inserted laterally, the teeth of the toothed belt come into the toothing. To simplify insertion, the slot preferably has about a height that an insertion of the timing belt end in the longitudinal direction, with the in the toothing indented toothed belt remaining gap by a locking element is lockable. To prevent a side Slipping out of the slot is conveniently on the side by the locking element or another fixable on the car Lockable element.

An alternative way of fastening the toothed belt end can be that the timing belt with the help of a Toothed locking element can be fixed to the car is. The closing element is preferably with screwed to the carriage or glider.

The drive plates usually sit on one of one Motor driven drive shaft, on which preferably the winding shaft is spring-mounted in the direction of rotation. hereby length compensation in a space-saving way created by the different Winding diameter of the winding shaft in the different extension states results.

The rotationally secure fixing of the drive plate can, for example be realized with the help of clamping screws, while preferably a thread adjustment between the Driving plate and the drive shaft for stepless adjustment the relative angular position is provided. For example can the thread adjustment essentially a screw or a set screw, the shaft is aligned in the circumferential direction and the one hand on the Driver element or axially supported with respect to the drive shaft while their threaded shank is in one on top of the other Part engages axially fixed hollow thread. After this With such a thread adjustment, the clamping screws can be loosened changed the angular position by turning the screw and by subsequently tightening the clamping screws the torsionally rigid lock in the desired position be accomplished.

Fig. 1

eine schematische, teilgeschnittene Schrägansicht einer Wintergartenmarkise;

Fig. 2

eine vereinfachte, schematische Ansicht des Gegenzugsystems auf einer Seite der Anlage nach Fig. 1;

Fig. 3

eine Ansicht eines alternativen Gegenzugsystems;

Fig. 4 a - h

schrittweise die Montage des Zahnriemens des Gegenzugsystems in einem Führungsschienengleiter;

Fig. 5

eine Detailansicht einer Einstellvorrichtung im Bereich der Wickelwelle;

Fig. 6

die Detailansicht nach Fig. 5 aus anderem Blickwinkel;

Fig. 7

eine Teilansicht einer Wintergartenmarkise mit einer Einstellvorrichtung im Bereich des Gleiters sowie

Fig. 8

eine weitere Ausführungsform einer Einstellvorrichtung im Bereich des Gleiters.

In the following, exemplary embodiments of the invention are explained in more detail with reference to the attached drawings. Show it:

Fig. 1

a schematic, partially sectioned oblique view of a conservatory awning;

Fig. 2

a simplified, schematic view of the balancing system on one side of the system of FIG. 1;

Fig. 3

a view of an alternative balancing system;

Fig. 4 a - h

step-by-step assembly of the timing belt of the balancing system in a guide rail slider;

Fig. 5

a detailed view of an adjusting device in the region of the winding shaft;

Fig. 6

the detailed view of Figure 5 from a different angle.

Fig. 7

a partial view of a conservatory awning with an adjusting device in the area of the glider and

Fig. 8

a further embodiment of an adjusting device in the area of the slider.

In Fig. 1 is a counter-pull system using the example of a conservatory awning 10 shown. This has a housing 12 whose two flanks guide rails 14 are provided in which slider 16 are guided in sliding guides on which the ends of a case profile 18 are fixed. Instead of glides trolleys with guide rollers can also be provided. An awning fabric 20 is fixed to the fall profile 18 and can be wound onto a winding or cloth shaft 22. The winding shaft 22 is designed as a hollow shaft and encloses one drive shaft 24 driven by a motor, one between the drive shaft 24 and the winding shaft 22 arranged preloaded torsion spring mechanism 26 for a structure a necessary bias of the awning fabric 20 and ensures length compensation when extending the awning, because the effective diameter when unwinding the awning cover 20 changes from the winding shaft 22. On both ends the drive shaft 24 is seated as a toothed disk 28 trained drive plate that drives the counter-pull system, its structure from the simplified view in FIG. 2 can be seen in more detail. There you can see that the toothed washer 28 is wrapped by a toothed belt 30, the two Has ends 32, 34, both of which are form-fitting on the slider 16 are set. On the way of fixing it later in connection with Fig. 4 a - h in more detail. The toothed belt 30 is used to form the counter-pull system formed all around and on a deflection roller 36 which in one Head part 38 at the head ends of the guide rails 14 is rotatably mounted. The slider 16 is simplified in FIG. 2 shown and preferably are similar to Fig. 3 pulleys provided in the area of the housing 12 for a targeted removal of the toothed belt 30 into the guide rail 14 at the level of the guide roller 36 or the height of the Ensure attachment point on slider 16.

The advantage of such with the help of a revolving Timing belt or other, form-fitting with the Driving plate 28 interacting, flexible tension element is that a winding of the tension element on the Winding shaft is avoided, causing a change in the effective Winding diameter would take place when winding up would have to be compensated for by the spring mechanism. In Fig. 2 it can also be clearly seen that the toothed belt 30 in an almost closed guide in the housing 12, the guide rails 14 and the head part 38 and so far well protected from pollution.

3 shows an alternative embodiment, firstly on the previously mentioned deflection roller 40 in the lower area of the housing 12 and a further deflection roller 42 in the area of the upper exit point of the toothed belt is pointed out from the housing 12. Essentially corresponds to the construction of the counter-pull system shown in FIG. 3 the previously described, but the tension element 44 only partially from a guided over the drive plate 28 Toothed belt 46 exists, which is fixed to an intermediate element 48 is from where the revolving tension element 44 through a simple textile belt 50 is continued, which has a toothless Deflection roller 52 deflected and using a clamping device 54 fixed to the carriage 16 designed as a glider is. Such training is without change Function possible because between the two end positions of the Slider 16 only a portion of the tension element over the drive plate 28 is guided and only there a positive Carriage must be guaranteed. Especially with long systems can the more expensive timing belt 46 by the essential less expensive textile tape 50 can be partially replaced.

4 a - h shows the step-by-step determination of the toothed belt 30 on the slider sliding in the guide rail 14 16 described. 4 a is an oblique view of a Base body 56 of the slider 16 shown. The basic body 56 has an open at the top Slot 58, on the underside of which a toothing 60 is provided is to engage in the toothing of the toothed belt 30 is determined. The height of the slot 58 is chosen so that with a correspondingly raised end of the toothed belt Insertion in the longitudinal direction is made possible. Below the Teeth 60, the base body 56 has a further opening 62 with two side webs 64, the top of which as a toothing 66 is formed. As shown in Fig. 4b, first of all the end 34 coming from the drive plate 28 of the toothed belt 30 in the two teeth 66 on the webs 64 inserted from the side, with the back 66 of the timing belt flush with the top of the opening 62 applies so that a temporary hold of the toothed belt end 34th is given in the pulling direction in the slider 16. Subsequently 4 c is a closing element 68 with an axle mount 70 for later attachment of the drop profile 18 laterally inserted into the opening 62, one provided at the top Tooth 72 (see Fig. 3) in the tooth profile of Timing belt 30 engages between the two webs 64. With With the help of screws 74, the closing element 68 on the base body 56 of the glider finally set, so that End of toothed belt 34 finally secured against slipping out is (see Fig. 4 d and Fig. 3).

The toothed belt is then moved over the toothed pulley 28, over the deflection roller 40 and over the deflection roller 36 in the head part 38 out and its second end 32 in the slot 58th introduced. When the desired timing belt tension is reached 30 is the tooth flank of the toothed belt 30 in the toothing 60 placed and a locking element from the front inserted the remaining space between the back 66 of the toothed belt 30 and the top of the slot 58 fills in, so that the toothed belt is held in the toothing 60 is. With the help of fastening screws 78 Locking element 76 fixed on the base body 56 of the slider 16. A possibly protruding part of the toothed belt 30 can now be cut off.

In the variant described in Fig. 3, a slot is without Gearing provided, with the help of a clamping insert 54 and clamping screws 78 jamming the free end of the Textile tape 50 on the base body 56 of the slider 16 allows is.

Fig. 4 h shows the final installation position of the slider in the indicated guide rail 14.

Since the attachment of the toothed belt ends 32, 34 to the base body 56 of the slider 16 only one step at a time Tooth can be changed, length compensation may be required for the timing belt 30 necessary to the two Carriage 16 in the two guide rails 14 to exactly that Set the same extension length and thereby incorrect positions to avoid the fall profile 18. For this is one shown in Fig. 5 Adjustment mechanism between a drive plate 28 and the drive shaft 24 are provided, the drive plate 28 is rotatably seated on a clutch disc 80 which a flange element 82 is rotationally fixed. To the Flange element 82, clamping screws 84 are provided by provided in the drive plate 28 in the circumferential direction Grab slots 86. That way is in certain Extent a change in the relative position of the clutch disc 80 to the drive plate 28 possible, after tightening the clamping screws 84 a transmission of the drive torque is possible via the clamping surfaces. The transfer of the Drive torque from the drive shaft to the flange element 82 takes place with the help of a seated on the drive shaft Square plate 87 (see Fig. 6) using fastening screws 89 screwed to the flange element 82 is. The clutch disc 80 has a hexagon opening in the middle 88 in which a corresponding external hexagon can be inserted to an additional system, if applicable to dock.

An exact adjustment of the drive plate 28 with reference to the clutch plate 80 after loosening the clamping screws 84 is possible with the help of a thread adjustment 90. The thread adjustment 90 consists essentially of an adjusting screw 92, which is held axially on a head bearing 94, that rotates in a bore in the drive plate 28 sitting. The shaft of the set screw 92 is essentially in Direction of rotation aligned and engages with his head to an abutment 96 on the flange element 82. In the The direction of pressure is adjusted by the axial infeed the one sitting in a hollow thread in the head bearing 94 Set screw 92 while moving in the opposite direction done by the spring mechanism 26, which between the Drive shaft 24 and the winding shaft 22 seated over the awning fabric 20, the fall profile 18, the carriage 16 and the toothed belt 30 acts on the drive plate 28. The self-locking the adjusting screw 92 prevents adjustment under the effect of spring force.

The adjustment mechanism shown in Fig. 5 is in its application not to the example of a conservatory awning described above limited, but can in principle also be used in other applications where an exact Angle of rotation alignment of a toothed disc or the like with respect to their bearing shaft is necessary.

7 is a view of a counter-pull system similar to FIG. 3, in which case an adjusting device 100 is provided in the area of the slider 16, alternatively or in addition to the setting device shown in FIG. 5 make a fine adjustment of the toothed belt 30 can, for example, the case profile 18 to an exact to be able to adjust the aligned position and possibly also the To be able to adjust the pretension of the toothed belt 30. The adjustment device 100 consists essentially of a holding part 102 and a clamping piece 104, which with the aid of clamping screws 106 in a certain axial position to each other are jammed. The holding part 102 or the clamping piece 104 are firmly connected to the slider 16 and the two ends of the toothed belt 30 are fixed on the one hand on the slider 16 and on the other hand on the not connected to the slider 16 and after loosening the clamping screws 106 axially movable part, d. H. the holding part 102 or the clamping piece 104 connected. The toothed belt ends can be fixed, for example in a previously described manner.

The adjustability of the holding part 102 and the clamping piece 104 to each other with the help of elongated holes 108 in the holding part 102 enables through which the shafts of the clamping screws 106 protrude. After loosening the clamping screws 106 can the holding part 102 and the clamping piece 104 to each other continuously be moved so that the desired setting of the Timing belt can be made. The length of the elongated holes 108 preferably corresponds at least to the tooth spacing of the Timing belt 30, even better double the tooth spacing, to be sufficient To offer adjustment.

Another embodiment of an adjusting device for stepless adjustment of the toothed belt 30 is shown in FIG. 8, the counter-pull system in the rest of that in Fig. 7 and also the embodiment shown in FIG. 3 essentially equivalent. The adjusting device 200 in turn has a holding part 202 firmly connected to the slider 16 and a axially movable with respect to the slider and the holding part 202 Actuator 204. During the first end of the timing belt is fixed directly to the slider 16, the second end of the Timing belt 30 firmly connected to the actuator 204, so that again by an axial relative movement of the two parts to each other made the fine adjustment of the timing belt can be. The definition of the toothed belt ends as such the corresponding parts can be in the manner described above and way.

In the actuating device 200, the actuator 204 lies between two projections 205, which are integrally formed on the holding part 202 are. Two set screws 206, 207 extend axially through threaded holes in these projections 205 and act directly on the front flanks of the Actuator 204.

After a preliminary assembly of the toothed belt ends in the previous described way can now with solved first Set screw 206 by turning the second set screw 207 the relative position of the actuator 204 to Holding part 202 can be changed until the desired setting is reached. By then tightening the first one again Set screw 206 ensures the set position.

As already mentioned, the adjustment devices 100 or 200 with an adjustment device in the area of the pulleys can be combined if extended setting options be required. In principle, however, provision is sufficient an adjusting device in the area of the pulleys or the glider on one side of the balancer to move the to be able to make the desired setting options. both sides Adjustment devices can then be useful albeit the pretension of the toothed belt 30 on both sides with the help of the adjustment devices should.

Claims (10)

Counter-pull system for adjusting a curtain (20) of a conservatory awning (10), which is arranged between a winding shaft (22) and a movable fall profile (18), which is fixed with its lateral ends to a carriage or glider (16, 70), which run in lateral guides (14) and on each of which a flexible traction element (30; 44) is fixed, each of which between the two ends of the carriage or slider (16) via positive driving disks (28) and deflection rollers (36; 52) are circumferentially formed and each have two free ends which are fixed independently of one another on the respective carriage or glider (16), characterized in that at least one end of the tension element can be fixed stepwise or continuously on the carriage or glider (16) in different length positions and / or at least one of the driving disks (28) seated on a drive shaft (24) driven by a motor is continuously variable in different positions its angular positions on the drive shaft (24) can be determined. Counter-tension system according to Claim 1, characterized in that the tension elements are designed continuously as toothed belts (30) and the driving disks as appropriately shaped toothed disks (28) or the tension elements (44) partially as toothed belts (46) which are between the carriages or sliders ( 16) and intermediate elements (48) are arranged and run over the drive disks (28) designed as toothed disks, and, moreover, as simple tension elements (50), e.g. B. are designed as tapes, ropes, cords or the like, which are provided between the intermediate elements (48) and the carriage or sliders (16) and run over the deflection rollers (52). Counter-pull system according to one of the preceding claims, characterized in that the ends (32, 34) of the toothed belts (30) are positively attached to the carriages or sliders (16) and / or the intermediate elements (48). Counter-pull system according to claim 2 or 3, characterized in that at least one end (32, 34) of the toothed belt (30) by means of a corresponding toothing (60; 66) on the carriage or sliders (16, 56) or a corresponding toothing ( 72) is held in a form-fitting manner on a closing element (68) which can be fixed on the carriage or slider (16, 56). Counter-pull system according to Claim 4, characterized in that the toothing (60, 66) is formed on the flank of a slot (58) or an opening (62) in the carriage or slider (16, 56), in which or which the one to be fixed The toothed belt end (32, 34) can be inserted, the slot (58) preferably having a height which enables the toothed belt end (32) to be inserted in the longitudinal direction and the gap remaining when the toothed belt is inserted into the toothing (60) through a locking element (76) is lockable. Counter-pull system according to Claim 5, characterized in that the slot (58) can be closed laterally by the blocking element (76) or another element which can be fixed on the carriage. Counter-pull system according to Claim 4, characterized in that the toothed belt (30) can be fixed on the carriage or slider (16, 56) by means of the closing element provided with a toothing (72), the closing element (68) preferably being connected to the carriage or The slider (16) is screwed. Counter-pull system according to one of the preceding claims, characterized in that the winding shaft (22) is rotatably mounted on the drive shaft (24) so that it is resiliently biased in the direction of rotation. Counter-pull system according to one of the preceding claims, characterized in that the driving plate (28) can be fixed in a rotationally rigid manner on the drive shaft (24) or an intermediate element (80) with the aid of clamping screws (84). Counter-pull system according to Claim 9, characterized in that a thread adjustment (90) is provided between the drive plate (28) and the drive shaft (24) or the intermediate element (80) for the continuous adjustment of the relative angle of rotation position, the thread adjustment preferably consisting essentially of one Screw (92), the shaft of which is aligned in the circumferential direction and which is axially supported on the one hand on the driver element or with respect to the drive shaft (24), while its threaded shaft engages in a hollow thread (94) which is axially fixed on the other part.

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