EP2206872A2 - Sun protection facility - Google Patents

Abstract

The device (1) has hangings (3) formed from lamellas. The hangings are brought into withdrawn and constricted positions. A cord (5) penetrates through the lamellas for moving the lamellas. The cord is fixed in the withdrawn position by a release mechanism (6). The mechanism is provided with electrically triggerable retaining elements e.g. electromagnets and electrical motor. The hangings are released by supplying the retaining elements with electrical energy. The hangings are partially constricted by an emergency gathering device (4) after releasing the hangings by the mechanism.

Description

The invention relates to a sun protection system according to the preamble of claim 1.

Sun protection systems of the type described above are known in various designs, so from the DE 20 2005 000 588 U1 ,

The hoisting means in the form of a rope or a band according to this prior art simultaneously serves as a guide for the hanging, e.g. a lamella reef store.

The elevator rope or band is releasably attached to the bottom side by means of a device, wherein the trigger mechanism is triggered mechanically, for example via a Bouwdenzug, which is connected on the inside to the window element on an actuating lever.

In addition, from the DE 202 19 778 a Notraffeinrichtung known, which has a winding shaft and elevator belts for the emergency, which are fixed to the underside of the curtain, for example on the end rail.

The Notraffeinrichtung according to this state of the art is blocked directly on the winding shaft by means of a locking device, which also acts via an operating handle and a Bouwdenzug and the emergency release device releases in an emergency.

The curtain of the shading system preferably consists of single lamellae in the form of external venetian blinds.

The external venetian blinds are guided either by freely stretched ropes, where the ropes reach through the individual lamellae or the lamellas become in guide rails guided, having the undercut grooves, engage in the corresponding guide elements, which are respectively secured to the fin ends.

In the management of external venetian blind in fixed guide rails, however, the elevator device of the emergency in the generic state of the art is always set to the lowest end rail of the curtain, which means that when operating the Venetian blind always the elevator belts of Notraffeinrichtung be dragged, which is disadvantageous can affect the general operation, as these elevator belts are located randomly between the slats and thereby hinder the stratification of the slats, as well as lead to disturbances in normal operation as well as in the case of emergency.

Another problem of the prior art arises from the fact that the trigger mechanism by means of the Baudenzugs and the trigger handle requires a relatively large amount of mechanical effort. The triggering device must be arranged consuming the respective window, for example, to get to the Notraffeinrichtung itself or to the lower elevator band of Notraffeinrichtung. In addition, they are relatively maintenance-intensive in operation.

The present invention is therefore based on the object, a sun protection system of the type described in more detail above such that the mechanical effort for the release of the release device is reduced.

The stated object is achieved in that the at least one release device has an electrically releasable retaining element.

This is preferably designed such that the release of each flexible tension cord by applying electrical energy or by interrupting the power supply is feasible.

In the sunshade system according to the invention equipped with a Notraffeinrichtung window or a door equipped with it or the escape route is linked to the Notraffeinrichtung that even with multiple flexible tension strands only a single electrical signal to release the release device is necessary.

In the sunshade system according to the invention, the lamellae of the curtain are guided in fixed guide rails, and the flexible pull cords of the emergency latching device are particularly preferably fixed to the floor of the escape route.

In order for an additional guide for the slats is formed in normal operation and it is avoided that the flexible tension cords of the Notraffeinrichtung place arbitrarily between the individual slats, so that conditional disturbances, such as entanglements can be excluded.

By acted upon by electrical energy retaining element, the release of the curtain by the release device can be implemented in the simplest way.

The release by the release device for each flexible pull cord can be realized in particular electromagnetically or electromechanically.

In the electromagnetic embodiment, the holding element preferably has an electromagnet or is designed as such.

This electromagnet preferably contains a core of iron, which is provided on the side facing the tension cord with an annular gap, in which a coil is inserted, which is acted upon by electrical energy.

In a further preferred embodiment, it is also provided that a magnet armature is placed on the electromagnet on the side facing the tension cord.

The armature is made of a suitably magnetic material, so that when current flows through the coil, the magnet armature is attracted with a certain holding force.

For radial centering of the magnet armature relative to the electromagnet, it is advantageous if the outer diameter of the magnet armature is greater than that of the cylindrical electromagnet and that the magnet armature has a centering ring which engages over the facing edge region of the electromagnet. This centering ring is achieved for example by a rotation of the magnet armature. The armature is preferably made of iron.

According to another preferred embodiment, it is provided that the holding element is provided with a damper assigned to the magnet armature, preferably with a spring element. As a result, attenuation between the curtain or the curtain end rail takes place when the curtain is pulled together. In the case in which the curtain was not maximally extended, the impact made by the armature acts diminished. It should be mentioned that each flexible tension cord also, if present, penetrates the Behangabschlussschiene.

According to another preferred embodiment, the magnet armature consists of a base body and a lid facing away from the electromagnet. In a particularly simple manner, the end of each flexible pull string can be fixed to the armature, if it is provided on the side facing away from the electromagnet with a corresponding number of radially extending grooves, so that the end region of each pull cord can be fixed non-positively. For this purpose, the height of each groove is a little less than the thickness or diameter of each pull string.

According to a further preferred embodiment, it is provided that the holding element has a housing designed as a hollow body, and that on the outside on Housing at least one retaining lever is pivotally mounted. In this embodiment, it is then advantageous that the end region of each flexible tension cord is fixed to a cable anchor, and that this cable anchor is engaged behind by the retaining lever or the holding levers. For this purpose, the cylindrically shaped cable anchor is provided on the side facing the bottom of the housing with a circumferential, larger diameter held ring. The facing end of each holding lever is formed mouth-shaped.

On the cable anchor, in turn, preferably acts a damper, in particular in the form of a spring element.

The holding lever or the holding levers is associated with a locking element which can be moved so that each retaining lever can be brought into a position releasing the cable anchor and releasing it into a cable anchor. This locking element is in a preferred embodiment a plate.

The actuation of this locking element takes place in a preferred embodiment again by an electromagnet. To bring each retaining lever in the locking position, this is provided on the side facing away from the cable anchor with a thickening, wherein the transition is an inclined surface. The axis of rotation of each holding lever is at a distance from the electromagnet.

Each locking element is preferably plate-shaped or disc-shaped, and is pressed by an energy storage, for example by a compression spring in the locking position. By means of the electromagnet, which can be activated by a current pulse, the locking element or the plate is brought into a position so that the holding lever or the holding lever release the cable anchor.

In a further embodiment, each retaining lever can also be pivoted by a motor, wherein the motor is preferably a correspondingly dimensioned micromotor.

To actuate the holding lever or the holding lever, the motor is then supplied with current or acted upon. The output pin of the motor is designed as a threaded pin / spindle and this threaded pin / spindle engages in an internally threaded bore of the retaining lever.

To protect against the effects of weather is preferably provided that on the retaining element, a cap is set, which engages over at least the damper and the armature or the cable anchor, but preferably extends over the entire height of the support member or approximately over the entire height. For additional assurance for the determination of the flexible tension cord is provided that the cap has a central opening for the passage of the tension cord, and that the tensile strand is determined by deformation frictionally in the opening.

In the simplest manner, it is further preferably provided for fixing the retaining element that this is fixed to a bracket, which, based on the mounting position consists of a vertical mounting leg and a horizontal receiving leg for the retaining element. The mounting leg is then set, for example, on the masonry or on a frame.

According to another preferred embodiment, it is provided that the end region of the flexible tension cord is fixed by mechanical connecting elements, for example by screws, by an adhesive bond, by a solder joint, by a thickening at the end region. In such cases, could be dispensed with the lid of the armature or the cable anchor.

Thus, even in the case of a power failure, the blind can be pulled or the curtain is not mounted without panic, it is provided that the holding element is provided with an emergency auxiliary power source for power supply. This auxiliary voltage source may e.g. a battery or a rechargeable battery or a capacitor. It should preferably ensure that the power supply is secured for a certain time, for example for 30 minutes.

To release the curtain, it is also advantageous if an emergency button is installed on a stationary component, for example on the frame of a door or a window, which is secured, for example by a protective cap against unintentional actuation. On such a protective cap can be dispensed with, however, if the button is designed as a so-called strike button, which is secured by a corresponding safeguard against unintentional actuation. When abruptly applying a force this button is then pressed.

As an emergency button but also acts an opening fitting or panic fitting for opening an escape opening such as windows or doors, which is located in front of the external blind with a Notraffeinrichtung and form a common vanishing point.

Fittings, in particular panic fittings are e.g. Handles, pushers, swivel levers or push handles that unlock the electric door or window. The fittings are provided with an electrical or electronic switching element, which triggers the Notraffung the associated Venetian blind.

Depending on the design of the holding device, this emergency button interrupts the power supply, or the current flow is enabled.

In combination of the emergency control device with a door or a window, a key switch may be provided which interrupts or ensures the power supply to the notching device in order not to activate the emergency latching device. This is required eg during maintenance work on the escape route or for purposes of other use of the window or the door.

In addition, the existing for motor operation of the blinds limit switch for the retracted end position or an additional limit switch is used to prevent the Notraffung by depending on the version, the power supply is interrupted or the power is maintained.

This circuit ensures that when the curtain is not raised, the unnecessary emergency release is not triggered.

Preferably, the end of each pull string is secured in the extended position by at least one of the notch devices.

The term of the electrical release is not too narrow to understand but includes triggering by means of electrical and electromagnetic potentials or signals of various types, be it via electrical conductors, optical fibers or wirelessly by means of electromagnetic waves (radio, infrared and the like.).

Reference to the accompanying drawings, the invention will be explained in more detail with reference to embodiments.

Show it:

FIG. 1

a trained as Raffstoreinheit, sun protection device according to the invention in elevation;

FIG. 2

a frame profile of a fixed frame or sash;

FIG. 3

the holding device according to the FIG. 1 in an enlarged view;

FIG. 4

the holding device according to the FIG. 3 in sectional view;

FIG. 4a

the magnet armature according to the figure in plan view;

FIG. 5

the holding device in a second embodiment in a cutaway view; and

FIG. 6

a third embodiment of the holding device according to the invention in a cutaway view.

The in the FIG. 1 illustrated sun protection system in the form of a Raffstoreeinheit 1 is provided with a non-illustrated, known elevator device 2, a lamellar blinds formed 3 of slats, a Notraffeinrichtung 4 and a holding device.

The emergency gripping device 4 is provided with a force accumulator, preferably in the form of a spring, so that the fully or partially extended slat blind 3 can be pulled in over the shortest possible time via a flexible tension element in the form of a cable 5, after the energy accumulator of the emergency gripping device 4 has been released.

The rope 5 is preferably fixed to the bottom side of the corresponding escape opening of a building and passes through recesses of the slats of the Venetian blind 3 and the closure rail of the slat blind 3. not shown FIG. 1 shows that the bottom fixed cable 5 alone already acts as a guide for the slat blind 3 in normal operation via the elevator device 2.

In a manner not shown, the slats of the slatted blind 3 can be guided by laterally arranged fixed guide rails. In this embodiment, another flexible band or a rope is additionally arranged in the immediate vicinity of the guide rails, with each band or rope additionally assuming management tasks.

As FIG. 1 shows the notching device 6 is fixed to a mounting bracket 7, which consists of a fixable on a stationary component mounting leg 7a and the notching device 6 supporting receiving leg 7b. As the FIG. 1 also shows, the cable 5 is at the bottom of the escape opening attached to the release device 6. In an emergency, the rope 5 is released from the release device 6 and mounted on the power storage of Notraffeinrichtung 4. In that case, if necessary, the lowered external blind is also transported upwards out of the escape opening.

The FIG. 3 shows the notching device 6 in an enlarged view. Thereafter, the release device 6 consists of a holding part forming the electromagnet 8 and a magnet armature 9 screwed thereto. This magnet armature 9 is facing away from the mounting bracket 7. On the armature 9, a damper in the form of a spring element 11 is placed. Furthermore, this figure shows that over the electromagnet 8, the armature 9 and the damper 11, a cap 13 is slipped. In the execution according to the FIG. 3 the cable 5 is passed through the magnet armature 8. The figure also shows that the cap 13 rests on the damper 11.

The FIG. 4 shows the notching device 6 in another embodiment. Thereafter, the electromagnet 8 is provided with an annular groove, in which a coil 8.1 is inserted, which can be acted upon by electricity. The magnet armature 9 consists of a base body 9.1 and a cover 9.2 screwed thereto, the screws in the FIG. 4a are shown. The main body 9.1 is provided on the side facing away from the electromagnet 8 with a radially extending groove 14, in which the end portion of the cable 5 is inserted. The dimensions of the groove 14 are chosen so that the cable 5 is fixed therein non-positively.

In contrast to the dargstellten embodiment, the cable 5 may also be glued or soldered to the body 9.1. Further, it is conceivable that the base body 9.1 has a central bore, and that the end region of the rope has a thickening, which is formed for example by compression or by a loop or a ferrule.

The FIG. 5 shows an electromechanical solution, which in turn is equipped with an electromagnet 19. In a housing 15, this is arranged and on the housing 15, a holding lever 16 is arranged, which is pivotable about an axis. Above the electromagnet 19, a cable anchor 17 is arranged, and above this cable anchor 17, in turn, a damper in the form of a spring element 11 is arranged. The holding lever 16 is formed mouth-shaped on the side facing the cable anchor 17 side, and a web engages behind a ring or band of the cable anchor 17. On the opposite side of the holding lever 16 is wider relative to the central region, or provided with a thickening, wherein the Transition forms an inclined surface. When the curtain 3 is lowered, the holding lever 16 is held in a wall to the housing to be regarded as parallel position. This is done by a locking plate which is placed on a pin of the electromagnet 19. In an emergency, the electromagnet 19 causes the locking plate 18 is moved at least on one side in the direction or opposite direction to the cable anchor 17, so that the retaining lever 16 is brought eg in the position shown in phantom and the cable anchor 17 releases.

In the execution of the FIG. 6 an electromechanical solution is shown, which includes a motor 22. Above this motor 22, a cable anchor 17 is arranged. This embodiment also includes a retaining lever 21, which, however, may be U-shaped in the lower region remote from the cable anchor 17. The motor 22 facing the leg is provided with an internally threaded bore. The output pin of the motor 22 is formed as a threaded spindle 20. It follows from the FIG. 6 in that, when the motor 22 is switched on, the retaining lever 21 is rotated about the pivot axis, so that the retaining lever 21 releases the cable anchor 17. For locking the motor 22 is moved in the opposite direction of rotation, so that the locking takes place.

Those in the exemplary FIG. 2 illustrated embodiment is a possibility for safety approval. Shown is a frame profile of a fixed frame of a door or window, which is intended as an escape route in a building. In this profile, an emergency button 23 is provided in the preferred embodiment, which is encapsulated for example by a protective cap against unintentional actuation. However, such a protective cap can also be dispensed with if the button itself is designed as a strike button or as an emergency opening fitting for the door or the window, which is secured by a corresponding safeguard against unintentional actuation. This emergency button 23 interrupts the power supply for the notching device 6 when executed according to the FIG. 3 or the electromagnet 19 according to the FIG. 5 and the FIG. 6 is energized. As a result, the slat blind is opened, so that an escape route is released.

In the embodiments according to the exemplary Figures 5 and 6 Alternatively, a key switch 25 may be used, which is switched so that the power supply to the release device 6 is interrupted, whereby the cable 5 is still held, so that the Notraffeinrichtung 4 is not triggered.

In particular, this switch serves to perform maintenance on the door or window, or to supply the elements in a temporary use as a normal window or door.

Claims (15)

Sun protection system, especially for doors or windows, with a. a curtain (3) which can be brought into an extended and in a contracted position, which is preferably formed from lamellas, b. wherein at least at least one pull string (5) passing through the slats is provided for moving the slats, c. wherein at least one or each pull string (5) is fixed in the extended position by means of at least one notching device (6), and d. wherein by means of a Notraffvorrichtung (4) after release by the notching device (6) at least the curtain (3) is partially contractible,
characterized in that e. the at least one release device (6) has an electrically releasable retaining element (8, 19, 22). Sun protection system according to claim 1, characterized in that the electrically releasable actuatable holding element (8, 19, 22) is designed such that sun protection system according to one or more of the preceding claims, characterized in that the - The release of each pull cord (5) by applying the holding element with electrical and / or electromagnetic energy or - Is feasible by interrupting an energy supply to the holding element. Sun protection system according to claim 1 or 2, characterized in that the holding element has an electromagnet (8, 19) or is designed as such. Sunshade system according to claim 3, characterized in that the electromagnet (8) has a preferably cylindrical magnetic core which is provided on the pullstring (5) side facing with an annular gap into which a coil (8.1) is inserted. Sun protection system according to one or more of the preceding claims, characterized in that a magnet armature (9) is placed on the electromagnet (8) on the side facing the tension cord (5). Sunshade system according to claim 5, characterized in that the outer diameter of the magnet armature (9) is greater than the diameter of the electromagnet (8), and that the magnet armature (9) has a facing the edge region of the electromagnet (8) centering ring. Sun protection system according to one or more of the preceding claims, characterized in that the release device (6) is provided with a the armature (9) associated damper. Sun protection system according to one or more of the preceding claims, characterized in that the magnet armature (9) on the side facing away from the electromagnet (8) side is provided with at least one radially extending groove (14) for non-positive fixing of the end portion of the tension cord (5). Sunshade system according to one of the preceding claims, in particular according to claim 1, characterized in that the notching device (6) has a hollow body formed as a housing (15), and that on the outside of the housing (15) at least one retaining lever (16) is pivotally mounted. Sun protection system according to claim 8, characterized in that the end region of the tension cord (5) is fixed to a cable anchor (17) having a of the retaining lever (16) behind engaged collar. Sun protection system according to claim 8 or 9, characterized in that the holding element, in particular the blocking lever (21), by means of an electric motor (22) is actuated. Sunshade system according to one or more of the preceding claims, characterized in that the notching device (6) is fixed to a bracket (7) which, relative to the mounting position, consists of a vertical mounting leg (7a) and a horizontal receiving leg (7b). Sun protection system according to one or more of the preceding claims, characterized in that in an escape route delimiting a emergency button (23) is provided, which is preferably covered by a protective cap, or that the emergency button (23) is designed as a strike button. Sunshade system according to one or more of the preceding claims, characterized in that a key switch (25) is installed on a frame. Sunshade system according to one or more of the preceding claims, characterized in that the actuating fitting of the window or the door is provided with a switching element which acts on the holding element (9, 18, 28).

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