WO1998021434A1

WO1998021434A1 - Rotating shutter for window or door openings

Info

Publication number: WO1998021434A1
Application number: PCT/EP1997/006190
Authority: WO
Inventors: Friedhelm Bilsing; Thomas Micketeit; Jens GLÄSER
Original assignee: Warema Sonnenschutztechnik Gmbh
Priority date: 1996-11-13
Filing date: 1997-11-07
Publication date: 1998-05-22
Also published as: IL129632A0; IL129632A; EP0938619B1; ATE220754T1; TR199901059T2; EP0938619A1

Abstract

The rotating shutter for window or door openings comprises at least one rotationally lodged wing (12) which can be swung between an opened and a closed position by means of an electrical motor. In order to provide a rotating shutter which can be simply mounted and easily retrofitted, the invention foresees that the electrical motor be fixed on the wing (12). Said motor is engaged by at least one movable gearing element (44) on a reaction member (32) lodged on a side of the window or door opening in such a way that a torque is applied on the wing (12) in the direction of closing or opening.

Description

Sliding shutters for window or door openings

The invention relates to a rotary shutter for window or door openings with at least one rotatably mounted wing, which can be pivoted between an open and a closed position by an electric motor.

Rotary stores are mostly opened and closed by hand. If this has to be done from the interior, it is necessary to open the window. With flower windows, this is very cumbersome.

It is also known to pivot the wings by means of mechanical internal openers that are operated with a hand crank. The drive by an electric motor is even more convenient. This eliminates the need to open the windows as well as manual operation. The known electric drive systems, however, require a great deal of effort during assembly, since the motor must be installed in the masonry or in the interior. This requires a breakthrough in the wall for the drive axle, the motor or both components. In addition, retrofitting into the masonry, taking into account the existing wall thickness and the structural condition, is not always possible, unless it has already been taken into account in the planning phase. As it is generally not possible to use the existing wall blocks when retrofitting, one cannot do without complex and disruptive installation work, which often results in further renovation work such as cleaning and repainting. The invention has for its object to provide a rotary shutter of the type mentioned, which can be installed and retrofitted with very little installation effort, in particular without major wall breaks and if possible even using the existing wall block with trunnion.

The above object is achieved in that the electric motor is attached to the wing and engages via at least one movable gear element on a reaction member mounted next to the window or door opening in such a way that a torque acts on the wing in the opening or closing direction.

The invention has the advantage that the wing with the attached electric motor, which can be built into the wing in a narrow design, invisible from the outside, forms a single, integrated component that can be prefabricated in rational manufacturing processes in the manufacturing plant. If the hinges are attached to the wing from the outset or at the construction site in such a way that the existing wall blocks and bearing journals can be used for storage, the assembly work is limited to laying an electrical line to the electric motor. A control line or a wireless remote control is even sufficient if, in a preferred embodiment, the electric motor is operated with solar energy which is generated by solar cells attached to the wing. Of course, the solar cells can also be installed elsewhere on the building.

Regardless of how the electric motor is supplied with power, it is provided in the practically preferred embodiment that it fixes a gearwheel relative to the wing Drives axis which is in engagement with a gear wheel which is mounted in a rotationally fixed manner next to the window or door opening and which forms the reaction member and preferably sits on a bearing journal of the wing.

A very variable, adaptable construction is obtained if, in a further preferred embodiment of the invention, the gearwheel which is held in engagement with the rotationally fixed gear is an intermediate gear which can be driven by a pinion seated on the output shaft of the electric motor and preferably on a rotatable one on the bearing journal of the wing is mounted and fixed on the wing swing arm.

Taking into account the different diameters of existing bearing journals, which should, if possible, continue to be used for storing the new rotary loading, despite their different sizes, it is also expedient to store the non-rotatable gear, the rocker arm and a band of the wing on a hollow shaft which the pivot pin of the wing is attachable. In this case, the hollow shaft is used as an adapter, so you only need a few hollow shafts with different bore diameters, but otherwise the same shape, and can use the same drive and gear parts for the rotary shutter.

The rotary shutter wings are normally locked in the fully open and fully closed position. However, during the swiveling movement when opening and closing, they can be exposed to strong wind loads. In order to avoid overloading and damage to the drive system under such circumstances, in a further preferred embodiment of the invention the drive train is between the Electric motor and the pinion arranged a slip clutch that yields at a certain maximum torque on the wing by external forces.

Instead of a gearbox made up of gears only, in an alternative embodiment of the invention it is provided that the electric motor drives a pinion with a fixed axis of rotation relative to the wing via a flexible shaft, said pinion being in engagement with a gearwheel that is non-rotatably mounted next to the window or door opening.

In this variant, the previously mentioned intermediate gear is eliminated, and because of the flexibility of the flexible shaft, it is generally possible to use an overload protection device without a slip clutch. In addition, the flexible shaft adapts easily to different positions of the pinion with respect to the electric motor.

It is also desirable that the locking of the wing in its end positions takes place automatically. For this purpose, in the preferred practical embodiment of the rotary shutter according to the invention, a locking rod which can be actuated by a controllable drive can be extended from an outer edge of the wing and brought into engagement with a bore in the adjacent outer edge of another wing and / or a stationary holder. The controllable drive can consist, for example, of a spring which preloads the locking bar into the extended locking position in cooperation with an electromagnet which retracts the locking bar further into the wing before the electric motor is switched on. Alternatively, the movement of the locking bar into the locking position could also be generated electromagnetically instead of by a spring. Since a power failure is unpredictable, the should definitely Interlock remain. On the other hand, it must be ensured that it can also be unlocked manually under all circumstances, for example in the event of a fire. This can be done, for example, by means of a handle attached to the locking bar, which is accessible from the interior at least when the sash is closed. An electrically controlled locking device of the type described above can also advantageously be used in the known rotary shutter drives with a wall-side drive. However, their use is particularly useful in rotary shutter drives according to the invention, since the power supply to the drive can also be used to actuate the lock, while a supply cable has to be laid for the wall-side drives.

Embodiments of the invention are described below with reference to the accompanying drawings. Show it:

Figure 1 is a mounted on a window opening rotary shutter with two wings, one of which is shown in the closed and the other in the open state.

Fig. 2 is a perspective view of the lower bearing of the left wing of the rotary shutter of Figure 1 in an embodiment of the invention and on a larger scale.

Fig. 3 is an exploded view of the parts of the storage and drive of the wing of Fig. 2; Fig. 4 is a perspective view of the parts of Figure 3 in the assembled state.

5 A shows a vertical cross section through the bearing and gear parts according to FIG. 2;

5B is a top view, partly in section, of the bearing and gear parts according to FIG. 4;

6 A, B the upper and lower part of a side view, partly in section, of an electric drive with a flexible shaft for pivoting a rotary shutter;

FIG. 7 shows a simplified top view, partly in cross section, of the drive according to FIG. 6 A, B;

Fig. 8 is a simplified vertical section through the lower corner of the rotary shutter opposite the bearing of Fig. 6 A, B and

Fig. 9 is a simplified representation of the locking system of the rotary shutter in the closed position of the wing. In Fig. 1, a mounting frame 10 is shown with two pivotally mounted wings 12 and 14 of a rotary shutter. It is a pre-assembled element that only needs to be attached to the outside of a window opening in a building. If a conventional, manually operable rotary shutter was already installed there, the wings 12, 14 can also be mounted with adapted straps 16 on the journal of the existing wall block instead of on journal 18 attached to the mounting frame 10. In addition, there is the possibility of anchoring new wall brackets with bearing pins 18 in the wall. In the example according to FIG. 1, the wings 12, 14 are filled with lamellae 20. Instead, they could at least partially consist of solar cells or a closed or perforated plate made of a suitable material.

Fig. 2 shows for a rotary shutter according to the invention, which has been retrofitted and placed on existing wall blocks with trunnions, with reference to Fig. 1, the situation on the lower trunnion of the left wing. 3, 4, 5A and 5B show the details of the mounting and the electromotive swivel drive of the wing acting there.

It is assumed that the wall studs bearing the bearing pins 18, here designated 22, are present. Since the journals 18 often have different diameters, a hollow shaft 24 is plugged onto them, the bore diameter of which fits the diameter of the bearing journal 18 and the outside diameter of which fits the bearing and gear parts described below for driving the wing 12. The hollow shaft 24, which is preferably provided with a blind bore only open at the bottom, has a lower section 26 and one of the latter through an annular Bund 28 separate upper section 30. In the assembled state, a gear 32 with a lower collar 34 sits on the lower section 26. The hollow shaft 24, like the gear 32, is held in a rotationally fixed manner relative to the bearing journal 18. The fixation can take place, for example, by means of a pin and a transverse bore through the collar 34, the lower section 26 of the hollow shaft 24 and the bearing pin 18. Of course, other means, for example keys or wedges, can also be used for the rotationally fixed mounting of the hollow shaft 24 and the gear 32.

On the upper section 30 of the hollow shaft 24, in the assembled state, rotatable relative to the latter, the fork-shaped band 16 at the free end in the example and between the two fork legs a rocker 36 provided at one end with a bore 35 matching the outer diameter of the hollow shaft 24 These parts are held by their own weight on the hollow shaft 24 and the bearing pin 18, but there may also be a safety device (not shown) against lifting off.

At the end opposite the bore 35, the rocker 36 has a further bore 38, through which, according to FIG. 5A, a stepped bearing pin 40 with an upper threaded section is inserted, which by means of a nut 42 resting on the upper side of the rocker 36 is attached to the swing arm. It carries a gear 44 rotatably mounted on it, which is held axially between the rocker 36 and a hexagon bolt head 46 attached to the lower end of the bearing pin 40. The center distance of the bores 35 and 38 and the pitch circles of the gears 32 and 44 are selected so that the gear 44 rolls in meshing engagement on the non-rotatable gear 32 when the rocker 36 is rotated about the central longitudinal axis of the hollow shaft 24.

Since the gear 32 is located below the lower leg of the fork-shaped band 16, but the rocker 36 is above this leg, the gear 44 according to FIG. 5 A is formed with an upper collar 48 which corresponds to the height of the lower leg of the band 16 or bridges the distance between the gears 32, 44 and the rocker 36.

In the hollow frame profile of the wing 12, designated 50, an electric motor 52 is installed approximately in the area where the band 16 is fastened, the cross section of which fits into the cavity of the profile 50 and which is therefore not visible from the outside. It drives via its output shaft 54 projecting vertically downwards and a slip clutch 56 a pinion 58 which is in meshing engagement with the gear 44 forming an intermediate wheel. The engagement is secured by an L-shaped angle piece 60 (see FIGS. 5 A, B), which is screwed on the band 16 on the one hand and on the rocker 36 on the other hand. The bearing of the idler gear 44 on a rocker 36 which is rotatably mounted on the central longitudinal axis of the hollow shaft 24 and which can be secured with simple fastening means, such as e.g. the angle piece 60, which can be fixed to it at a different distance from the band 16, allows the compensation of manufacturing tolerances and on-site dimensional differences to which an adjustment can be made in a simple manner by selecting gear wheels 32, 44 of different sizes.

6 A, B show the mounting and the drive of the sash of a further embodiment of a rotary shutter, of which for the sake of simplicity only the middle and lower part of the sash frame designated 110 and a corner connector 112 is shown in the lower left corner thereof. The rotary shutter has in the usual way an upper and a lower laterally projecting band 114 and 116, which are each fastened to the frame 110 and are rotatably supported by their outer, cylindrically rounded ends on an upper and lower block 118 and 120, respectively. In this respect, the rotary shutter shown corresponds to the conventional design.

In the frame 110 of the rotary shutter, on the side of the bearing 114-120, an electric motor 124 connected to a gear 122 is integrated. The motor-gear unit 122, 124 is flanged with a vertical axis of rotation to the outside of the web of an inverted U-shaped motor mount 126 in vertical section according to FIG. 6A, which in turn is screwed to the walls of the frame 110, the fastening screws being parallel to the main plane of the rotary shutter are so that no fastening screws are visible on the main surfaces of the rotary shutter.

The U-shaped motor mount 126 points upward with its web. At the bottom, its cross section is covered by a screwed-on bearing cap 128. In a bore lined in the bearing cover 128 with a bearing bush 130, a bearing bolt 132 is rotatably mounted, which is connected in a rotationally fixed manner to the output shaft of the transmission 122. A longitudinal bore 134 extends through the bearing bolt 132 and receives the drive-side end of a flexible shaft 136. In order to obtain a rotationally fixed connection between the bearing pin 132 and the flexible shaft 136, the longitudinal bore of the bearing pin 132 and the end of the flexible shaft 136 can have flats which are flattened opposite one another or have a non-circular cross-section. By means of clamping screws that screw into threaded bores 138 in the bearing bolt 132 bar, the connection between the flexible shaft 136 and the bearing pin 132 can be axially secured. There is also the possibility of producing the longitudinal bore in the bearing bolt 132 with a round cross-section and anchoring the opposite flattened end of the flexible shaft 136 in the bearing bolt 132 by means of the clamping screws to be screwed in at 138.

A little below the motor mount 126 there is an opening 140 in the front wall of the hollow profile forming the frame 110 for the exit of the flexible shaft 136, which opening is delimited by a protective frame 142, a so-called inlet tulip. Below the opening 140, the flexible shaft 136 extends outside the rotary loader to a drive pinion 144 which is mounted on the lower belt 116 in such a position that it meshes with a gear 146 which is non-rotatably seated on the lower block 120.

Because of the different dimensions of the block 118 and the unfavorable friction of metal on metal, 120, the bands 114, 116 of the rotary shutter are not mounted directly on the block 118, 120, but rather each via a reduction sleeve 148, 150 made of plastic. The inner diameter of the reduction sleeve 148 is selected to match the diameter of the bearing pin of the block 118, while its outer diameter is constant and matches the bearing diameter of the upper band 114. On the lower block 120, the hub body 152 of the gear wheel 146 is provided with a blind bore 154 which matches the bearing pin of the block 120 and which receives the bearing pin. The rotationally fixed connection between the gear 146 and the bearing journal of the block 120 is ensured by a transverse pin 156 extending through both parts. The metallic hub body 152 has an upwardly projecting pin 158, on which the reduction sleeve 150 and the band 116 of the lathe is stored. It would also be possible to make the adjustment between the bore 154 in the hub body 152 of the gear 146 and the pivot pin of the block 120 not by boring, but by a sleeve adapted to its diameter.

The drive pinion 144 made of metal is non-rotatably and axially fixed on a bearing pin 160, which in turn is rotatably but axially fixed in a bearing block 162. The bearing pin 160 is provided with an axial bore into which the non-circular, z. B. flattened end of flexible shaft 136 is inserted. The non-rotatable connection between the flexible shaft 136 and the bearing pin 160 is ensured in the example by clamping screws to be screwed into threaded holes 164. The bearing block 162 is screwed to the band 116. An adjustment of the position of the bearing block 162 with respect to the band 116 of the rotary shutter can be carried out through vertical elongated holes 166 in the bearing block 162 or in the band 116. The adjustment is necessary because, depending on the installation situation of the rotary shutter, the band 116 has to protrude outward beyond the frame 110 to a different extent and the flexible shaft 136 has a certain length. For this reason, pinion 144 is also much wider than gear 146.

Flexible shafts 136 of the type in question here are e.g. B. available under the brand name DIAX from Schmid & Wezel GmbH & Co., Sinsheim. They resemble a coil spring in shape. Since they react relatively softly and elastically to torsional forces, a slip clutch in the drive train between the electric motor 124 and the pinion 144 is normally unnecessary. The flexible shaft 136 absorbs unpredictable sudden loads. If the If the rotary shutter hits an obstacle when swiveling, the motor switches off automatically.

A locking device shown in FIG. 8 is attached to the side edge of the rotary shutter opposite the bearing in the area of the lower corner. It consists of an electromagnet 168 mounted in the frame 110, which acts on a locking rod 170 which is displaceably guided in the frame in the vertical direction. It only needs to be lifted by the electromagnet 168 into a retracted neutral position during the pivoting of the rotary load. In the open and in the closed end position of the rotary shutter, the locking bar 170 engages in a holder attached below the rotary shutter. The locking position is secured by the dead weight of the locking bar 170 even in the event of a power failure. In an emergency, however, it can be raised by means of a handle which is accessible from the outside and is connected to the locking bar 170.

It is understood that in view of a protected location of the motor-gear unit 122, 214 and the appearance of the rotary or sliding shutter, it is desirable if the drive unit can be mounted completely concealed in an internal cavity. However, the invention is not limited to correspondingly deep frame profiles 110, but can also be used with flatter rotary shutters, in which the drive unit attached to the store, for. B. is visible from the outside or inside in the open and / or closed state. Covers protruding from the surface of the rotary shutter are also possible for the drive unit.

It is further understood that the person skilled in the art has a large number of possible modifications of the len fastenings and bearings are available.

Instead of the gear shown, a belt or lever gear can also be provided, in which the torque of the electric motor mounted in the wing of the rotary shutter is also supported on a stationary reaction member such that the reaction force exerts a torque on the wing.

9 shows the locking system of the wings 12, 14, which can also be used with the wings 110, 112. It consists of a locking bar 62 which is mounted in a longitudinally displaceable manner in the upper frame profile of the left wing 12 and a locking bar 64 which is mounted in a longitudinally displaceable manner in the lower frame profile of the right wing 14. The locking bars 62, 64 can each be extended out of the wing via the free outer edge thereof. In the closed position of the rotary shutter shown in FIG. 6 there is in each case in alignment with the locking bar 62 or 64 in the other wing an outwardly open bore 66 or 68 into which the extending locking bar 62 or 64 penetrates. In this way, the two wings 12, 14 are connected to each other in the closed position above and below and thereby secured in their position. To open the rotary shutter, the locking bars 62, 64 are withdrawn from the respective other wing, and then the wings are each pivoted open by means of the motor 52 into their fully open position, in which the locking bars 62, 64 are extended again and in alignment with them Penetrate holes in brackets, not shown, fixed to the wall. The locking bars 62, 64 can be biased, for example, by the force of a spring in the direction of the locking position advanced outwards. The spring force can be overcome in each case by an electromagnet 70 or 72, which temporarily pulls the associated locking bar 62 or 64 out of the locking position into the wing receiving it. When the rotary shutter drive is actuated, the electromagnets 70, 72 are automatically excited before the electric motors 62 are switched on to pivot the vanes 12, 14. When the electric motors 52 are switched off again after reaching the other end position, the excitation of the electromagnets 70, 72 also stops , so that the locking position of the locking bars 62, 64 is restored by means of the springs, not shown. It goes without saying that other suitable controllable drives for the locking bars 62, 64 come into question and that there are no difficulties, at least on the side facing the interior in the closed position of the wing, for example one through an elongated hole in the frame profile of the wing To extend extending handle on each locking bar, which allows it to be pushed back into the unlocked position even in the event of a power failure, for example in the event of a fire, and to open the wings while overcoming the slip clutch 56.

Claims

claims

1. rotary shutter for window or door openings with at least one rotatably mounted wing (12, 14; 110, 112) which can be pivoted by an electric motor between an open and a closed position, characterized in that the electric motor (52; 124) on Wing (12, 14; 110, 112) is fastened and engages via at least one movable gear element (44, 58; 136, 144) on a reaction member (32, 146) mounted next to the window or door opening in such a way that the wing ( 12, 14; 110, 112) a torque acts in the opening or closing direction.

2. A shutter according to claim 1, characterized in that the electric motor (52) drives a gear (44) with a fixed axis relative to the wing (12, 14), which rotates with a test next to the window or door opening on a bearing journal (18) of the wing (12, 14) mounted gear (32) is engaged.

3. A rotary shutter according to claim 2 or 3, characterized in that the gear (44) which is in engagement with the non-rotatably held gear (32) is an intermediate gear which is seated on the output shaft (54) of the electric motor (52) by a pinion ( 58) can be driven and is mounted on a rocker arm (36) which is rotatably mounted on the bearing journal (18) of the wing (12, 14) and can be fixed on the wing, and the non-rotatable gearwheel (32), the rocker arm (36) and a belt ( 16) of the wing (12, 14) are mounted on a hollow shaft (24) which can be plugged onto the bearing journal (18) of the wing (12, 14).

4. Rotary shutter according to one of claims 1 to 6, characterized in that a slip clutch (56) is arranged in the drive train between the electric motor (52) and the pinion (58).

i. A rotary shutter according to claim 1, characterized in that the electric motor (124) drives, via a flexible shaft (136), a pinion (144) with a rotational axis which is fixed relative to the wing (110, 112) and which is non-rotatably mounted next to the window or door opening Gear (146) is engaged.

I. A rotary shutter according to claim 5, characterized in that the pinion (144) is mounted on a belt (116) carrying the rotary shutter, wherein it sits in a rotationally fixed manner on a bearing bolt (160) mounted on the belt (116) and has a longitudinal bore is provided, in which the output end of the flexible shaft (136) is fixed.

7. A shutter according to one of claims 5 to 6, characterized in that the electric motor (124) is mounted inside the frame (110) of the rotary shutter and the flexible shaft (136) is led out of the frame (110) through an opening (140) which is delimited by a protective frame (142), and the electric motor (124) and a gear unit (122) connected to it are mounted on the end face of a bearing part (126, 128) fastened in an inner cavity of the frame (110) and this contains a radial bearing for a bearing pin (132) driven by the gearbox (122), which is provided with a longitudinal bore (134) in which the drive end of the flexible shaft (136) is fixed.

8. Lathe according to one of claims 1 to 7, characterized in that in the closed and / or fully open position of the wing (12, 14) at least one locking rod (62, 64) actuated by a controllable drive (70, 72) an outer edge of the wing (12, 14) can be extended and brought into engagement with a bore (66, 68) in the adjacent outer edge of another wing and / or a stationary holder.

9. A shutter according to claim 8, characterized in that the controllable drive a spring biasing the locking bar (62, 64) in the extended locking position in cooperation with a locking bar before switching on the electric motor (52) further into the wing (12 , 14) withdrawing electromagnet (70, 72) and on the locking bar (62, 64) in the closed position of the wing (12, 14.) from inside and / or outside accessible handle for manual displacement is attached.

10. A shutter according to one of claims 1 to 9, characterized in that the electric motor (52) to the wing (12, 14) or fixedly attached solar cells can be connected.