WO2010136917A1

WO2010136917A1 - Electrically operable roller blind

Info

Publication number: WO2010136917A1
Application number: PCT/IB2010/051973
Authority: WO
Inventors: Thomas Stepan; Peter Stepan
Original assignee: Stepan Engineering Ag
Priority date: 2009-05-27
Filing date: 2010-05-05
Publication date: 2010-12-02
Also published as: CH701120A1

Abstract

The present invention relates to an electrically operable roller blind (1), in particular for light protection or sun protection on windows or glass doors. The roller blind (1) comprises a protective curtain, preferably a roller blind cloth, which can be wound onto a winding roller or extended. The winding roller is rotatably supported in a supporting body (7) of the roller blind (1) and connected to an exterior rotational drive, which comprises an electric motor, which has a control connection to a control unit. The invention is characterized in that the supporting body (7) - instead of a closed housing for the roller blind cloth - comprises merely two spaced support elements for the winding roller, preferably narrow side walls, which are fastened at both ends of a body profile. The electric motor is arranged in the body profile directly under the winding roller. The electric motor is fed by batteries/accumulators, which are supplied by means of solar cells or a power supply unit. The supporting body (7) of the roller blind (1) is fastened, preferably adhesively bonded, directly on the glass pane (2).

Description

ELECTRICALLY OPERATED ROLL

The present invention relates to an electrically operable roller blind, which can be used in particular as a light or sun protection device on windows or glass doors.

As is known, houses, office buildings, etc. are provided in modern construction for various reasons with glass facades or large windows. Often, the windows are also installed in areas that are poor or hardly accessible to the residents. In strong light, however, this can have a negative effect on the quality of life or work, as well as on the health. For companies, it is important to comply with the EU directive on VDU workplace requirements). A sun / privacy is therefore essential.

Blinds, blinds or classic curtains can be remedied in the interior of a building. These products can be mounted on the frames of windows or even between windows; mostly by means of screws. However, manual operation is only possible if the windows are individual and directly accessible. As soon as the protective equipment is to be motorized, installation costs are incurred on site by the corresponding specialist, which far exceeds the product costs. Another problem is the roller shutter / blind box, which reduces the wall recess for the window around its area or by its volume and by its dimensions, and Ausse- hen up to preventing the opening of sliding doors by its volume. Since these boxes should also be thermally insulated or otherwise outside the house insulation must be installed, they build relatively large.

From US-7389806 a motorized window roller blind is known, which is provided with a control device, a tubular motor and a housing which receives the roller blind and is mountable to the window. The controller controls the motor in response to a signal from a wireless communication system to allow a desired indoor temperature during the day. From Figures 2 and 3 it can be seen that the motor, a power source and the transmission are coaxial with the winding roller, i. are arranged within the winding roller.

This integrated arrangement of the motor in the winding roller requires on the one hand rather elaborate rod-shaped, thin and therefore expensive motors and on the other hand they cause an increased diameter for the winding roller, which adversely affects the overall dimensions of the complete roller blind and bauverg rse.

WO-0177479 discloses another motorized roller blind in which a rotatable winding roller is connected to a drive shaft and an electric motor assembly. The motor is arranged in a lateral housing part, perpendicular to the winding roller. The whale shaft is driven by the engine through a more expensive and friction energy consuming worm gear. The winding roller is mounted in holding pieces of the device. However, this lateral and more expensive arrangement of the engine and the transmission limits the installation options of the roller blind significantly.

In the above arrangements, there may be problems in practice with the leadership of the blind cloth in the housing, which are often arranged blowing elements. This may in some cases result in damage to the drive and / or damage to the web or its faulty reeling, which may cause the web to lock within the housing.

The invention is therefore an object of the invention to provide an improved roller blind system of the type mentioned, which allows for the lowest possible volume construction, a more effective cooling structure and a lighter, simpler design. Furthermore, the installation and operation should be simplified in such a way that it can easily be carried out by anyone.

The stated object is solved by the features of the main claim to a large extent. Advantageous developments of the invention are specified in the dependent claims.

The essence of the invention is that the support body - instead of a housing for the blind cloth - two offending storage elements for the winding roller, preferably narrow side walls, which are fixed at both ends of a, preferably V-shaped body profile. The electric motor of the rotary drive is arranged in / on the body profile directly under the winding roller. In addition, the supporting body of the roller blind is attached directly to the glass, preferably glued. The invention will be described below with reference to the accompanying drawings of an embodiment. It shows:

1 is an internal perspective view of an embodiment of the inventive roller blind in the installed state,

FIG. 2 shows an external view of the solution according to FIG. 1, FIG.

3 is a perspective view of parts of the roller blind according to FIG. 1 in the disassembled state, FIG.

4 shows a part of FIG. 3 on a larger scale, FIG.

5 an assembled part of the solution according to FIG. 4 on a larger scale, FIG.

6 shows a perspective image of the side wall according to FIG. 5, FIG. 7 shows a perspective image of a part of the body profile according to FIG. 5, FIG.

FIG. 8 shows a variant of the solution of FIG. 1 on a larger scale.

The invention relates to an electrically operable roller blind 1 for solar and privacy protection, for example. at a window. The roller blind 1 according to the invention is (see FIGS. 1 and 2) directly attached to an inner glass pane 2 of a window 3; in the illustrated embodiment, with an elastic assembly adhesive tape (for example from the known company "3M") simply glued in. Two adhesive dots are designated in Figure 2 with the reference number 4. Alternatively, a variety of adhesive strips may also be provided.

The above-mentioned adhesive strips or adhesive dots 4 consist of a foam strip which is coated on both sides with adhesive. This also provides a vibration damping and inaccuracy compensation, as well as a ventilated distance to the glass.

As a result of this arrangement and fixing of the roller blind 1 directly on the glass pane 2 of the window 3, the window 3 can be operated as desired, and thus does not hinder the roller blind 1 from functioning as the window 3, or can the roller blind 1 be independent of the roller blind 1 Position (eg also sliding door) of the window 3 are operated trouble-free.

The roller blind 1 according to the invention has virtually no conventional housing from which a rolled-up blindsheet 5 of the roller blind 1 comes out or is wrapped, but the blindsheet 5 is guided over a load-bearing structure (see below), this means that it can be viewed from inside and outside From below essentially only the blind sheet 5 (Fig. 2) sees. This roller blind 1 thus has a substantially housing-free training.

The windable or sunshade extendable protective curtain, i. in this case, the blind sheet 5 is shown in Fig. 1 in his, partially wound on a winding roller 6. If the scarf is completely wound up, it is possible to speak of a "passive" state, in an unrolled position "active" state.

Instead of the conventional housing so the roller blind 1 according to the invention has a support body 7, which in Fig. 3 consists of a left side wall 9, a right side wall 11 and a central body profile 12 (see also Fig. 7). The central body profile 12 of the support body 7 is attached to the upper edge of the window 3 on the glass pane 2 by the adhesive dots 4. Of course, it can also be easily installed in other locations, such as on interior walls or as a room divider to decorate them with color variations.

The side walls 9 and 11 are configured as lateral support as narrow as possible (see also Fig. 6), and each provided with a coaxial pin 13 for the rotatable mounting of the winding roller 6. For supporting the pins 13, the winding roller 6 has a bearing / ball bearing 6A on both sides (FIG. 3).

The side walls 9 and 11 are made in this case of plastic by means of an injection molding process. The central V-shaped body profile 12 is in this case an aluminum extruded profile. The side walls 9 and 11 can preferably be positively and / or non-positively simply plugged into the central body profile 12. For this purpose, 12 openings 16 are provided for receiving the mandrels 15 at the end faces of the body profile.

In addition, the side walls 9 and 11, if necessary, each have an opening 17 for receiving a guide rod 18, which provides as the only visible from the outside cross bar for the guidance of the blind cloth 5 (Fig. 2 and 5).

As is indicated by an arrow 19 or 20 in FIG. 3, the left side wall 9 according to the arrow 19 and then the right side wall 11 according to arrow 20 with all other parts in the central body profile during assembly of the above components 12 are inserted and fixed. At the lower end of the blind cloth 5, a weight day 23 is enforced, so that it is regularly pulled down tightly by the weight of the weight day 23. When tilted window 3, the blind sheet 5 also slide laterally, for example via eyelets, not shown, along ropes or wires.

As can be perceived from FIGS. 1, 3 and 4, the roller blind 1 has a rotary drive 24, the simple electric motor 25 of which is directly below the winding roller 6 and within the V-shaped body profile 12 (ie not inside or laterally next to the winding roller , as in the prior art) is arranged. This special arrangement has the advantage that the winding roller 6 can even be made extremely thin, and thus the roller blind 1 needs a relatively small installation space, i. a surprising compact design allows. So far, as mentioned above, the motors were mostly integrated in the winding rollers as shaft motors, which are too expensive and require a larger diameter and installation space.

The torque is transmitted from the electric motor 25 of the rotary drive 24 to the winding roller 6 via a gear 26, which is preferably designed as a simple drive with an O-ring 27 (Figures 3 and 4). Optionally, the o-ring drive may be replaced by a toothed belt drive, belt drive, chain drive, friction drive, gears or similar mechanism.

The O-ring 27 is connected in its working position on the one hand with a driving pulley 28 of the electric motor 25, on the other hand with a driven pulley 29, which is attached to the winding shaft 6 mitdrehbar (Fig. 3).

In the illustrated embodiment, the pulley 29 is slip-provided with an increment marker (not shown) (encoder) so as to change the respective angular position or conversion. Rotation of the angle roller 6 to register accurately. As a result, a calibration and an exact positioning of the blind cloth 5 are possible.

If e.g. If several blinds 1 should be operated at the same time, it may be particularly important that all the blinds are extended the same distance. This can be done by means of this incremental monitoring and electronic control of the roller blinds 1.

An important advantage of the O-ring 27 is to be narrower and cheaper than e.g. a toothed belt, whereby the whole transmission 26 is very narrow, with the naked eye on the distance formed almost invisible and can be arranged.

The roller blind 1 according to the invention requires no subsequent cabling during installation and also no external power supply, since it is provided for self-supply with current with known solar cells 30 (FIG. 1) and at least one rechargeable battery (not shown).

In Fig. 3 it can be seen that the central body profile 12 of the support body 7 has two square openings 31 for receiving the solar cells 30. In the installed state of the roller blind 1 so are the solar cells 30 on the back of the support body 7, which is glued to the glass pane 2. By the adhesive strips or adhesive dots 4, the solar cells 30 and the support body 7 are spaced from the glass, so that no heat accumulation can result. The blind 1 is thus glued or mounted on the window pane 2 (and preferably not on the window frame). However, the invention also encompasses variants without solar cells or with external ones Solar cells in which the support body is not glued to glass windows.

The rotary drive 24 of the roller blind 1 is equipped with an electronic control unit 32 which has a printed circuit board 33 (FIG. 5) and an electronic circuit (not shown) arranged on the printed circuit board 33. The printed circuit board 33 is simply inserted and fixed in the longitudinal grooves 35 and 36 of the central body profile 12. In FIGS. 3 and 4 it can be seen that on the lower side of the printed circuit board 33 the electric motor 25 is fastened directly below the winding roller 6.

The control unit 32 is provided in this embodiment with a handheld remote control (not shown) known per se, by means of which the roller blind 1 can be remote-controlled. If the remote control is preferred, e.g. 7 channels, then 7 blinds, or 7 groups of blinds could be controlled in different or the same sense.

The programming of the remote control could be done as follows:

On each roller blind there is a button (not shown) that you press and at the same time you press a button on the remote control. Thus, the radio channels are balanced, and this remote control acts on the selected shade.

The blind sheet 5 may possibly have figures, advertisements, etc. Instead of the blind cloth 5 or Rollostoffs could also metal mesh (EMF shielding), transparent films, or slides with advertising, photos, etc. are used. The roller blind 1 according to the invention can be used not only in residential buildings, office buildings, factories and winter gardens, but also in buses, cars, etc., or even for purely decorative purposes (without covering a window or door) in any rooms.

The roller blind 1 ("smartRollo" TM) according to the invention is thus an electrically operable sunblind which requires no additional installation since it is supplied with green power by integrated solar cells 30. The user can control several roller blinds 1 conveniently by remote control, and that too The design of the fabric can be individually designed.Thanks to its significantly simplified construction - in particular due to the special motor arrangement - the simplest possible drive and no traditional housing are required.The very narrow side support elements are almost invisible - not only in the individual points but also in the overall package The innovations mentioned above, the roller blind 1 according to the invention is unique.

As can be seen from the above, the invention offers a unique and universally applicable roller blind 1, which responds by its environmentally friendly solar technology, design, ease of installation, as well as individual design options. By means of exchangeable and printable roller blinds, the customer is offered lifestyle, advertising or optimal design of a room in addition to the conventional sun and glare protection.

The roller blind 1 can be glued onto the glass pane 2, even by the user himself. Alternatively, the roller blind 1 can be temporarily fixed to the glass pane, for example by means of two or more suction buttons. Thus, when installing the roller blind 1 of the window frame is unmolested. It is powered by solar cells 30 integrated in the support body 7 with power and controlled easily and conveniently by means of a radio remote control. As a result, the user does not incur any extra installation costs for power connections, control and installation. The electronic control unit 32 of the roller blind 1 can possibly be easily connected to a central electronic home control.

Further, the blind sheet 5 may be provided with side guides, e.g. Eyelets, guide ropes, or other guide elements provided to promote better guidance of the blind sheet 5 in oblique windows and at the same time the trouble-free tilting of the window on.

In Fig. 8 it can be seen that both sides wedge-like lateral guide elements 37 are provided for the blind cloth 5. These lateral guide elements 37 in this case are integrated in the side walls 9 and 11, and formed relative to the central body profile 12 (see FIG. 3), but may also be formed separately, or integrally formed on the side walls 9 and 11 or e.g. be fastened by screwing or gluing.

The application of the lateral guide elements 37 is advantageous in order to ensure the straight and trouble-free running of the blind cloth 5 during winding and unwinding.

Such an embodiment of the roller blind 1 is also conceivable, in which the sun protection medium, for example the blind cloth 5, can be moved from the bottom upwards. For this purpose, the scarf should be biased against gravity. It should also be noted that if necessary Venetian blinds can be configured according to a similar principle as in the illustrated embodiment of the blinds 1.

When moving, the shade 1 can be easily removed from the glass sheet 2 without leaving the holes of a holder in the window frame. For such holes would normally be a repair by the tenant / seller pay. Furthermore, the shade 1 could find application in presentations, lectures or exhibitions as an advertising medium (such as roll-ups).

In summary, the most important advantages of the roller blinds 1 according to the invention are as follows:

^■ minimum installation dimensions,

^■ Simple, compact, reliable and housing-free design; ■ Simple, logical operation via a radio remote control;

^■ In rooms with several blinds, these can be controlled simultaneously or individually via the remote control;

^■ Environmentally friendly by using battery and solar technology; ■ Unique design, since the support body 7 is covered by the blind cloth 5;

^■ Simply replaceable sunscreen is made according to the customer's ideas (color, image, advertising);

^■ market price for a motorized roller blind; ■ No installation, assembly or follow-up costs.

The lower list of reference numbers and the claims in the claims also belong to the disclosure. List of labels:

1- Electrically operated roller blind

2 glass pane

3- Window 4- Glue Point

5- scarf

6- winding roller

6A winding roller bearing

7- supporting body 8-

9- Left side panel / lid 10-

11- Right side panel / lid

12- middle body profile 13-pin

14-

15- thorn

16- opening 17- 18- guide rod

19- arrow

20- arrow

21- 22- Weight bar

23- rotary drive

24- electric motor

25- gearbox

26-o-ring 27- First pulley

28- Second pulley

29- solar cell

30- Opening for solar cell 31- Electronic control unit

32 printed circuit board

33- longitudinal groove

34- longitudinal groove

35- lateral guide element (for the scarf)

Claims

1. Electrically operable roller blind (1), in particular for light or sun protection in front of windows or glass doors, which has a winding roll (6) can be wound up or extendable protective curtain, preferably a blind cloth (5), wherein the winding roller (6) in a supporting body of the roller blind (1) rotatably mounted and with a outside of the winding roller (6) arranged rotary drive (24) is connected, and that the rotary drive (24) comprises an electric motor (25) which with a control unit in

Control connection is, characterized in that the support body (7) - instead of a closed housing for the blind cloth (5) - only two spaced-apart storage elements for the winding roller (6), preferably narrow side walls (9, 11), which at both ends one

Body profile (12) are fixed, wherein the electric motor (25) in / on the body profile (12) is arranged parallel to the winding roller (6) and is in drive connection with the latter and wherein in the assembled state, both the body profile and the electric motor ( 25) is covered by the scarf.

2. Roller blind according to claim 1, characterized in that the

Supporting body (7) of the roller blind (1) by means of an adhesive device to the window or the door, in particular to the glass pane (2) can be fastened.

3. Roller blind according to claim 1 or 2, characterized in that the winding roller (6) from the electric motor (25) by a transmission (26), preferably a pulley transmission in particular an O-ring drive (27) or driven by a toothed chain drive, to which the electric motor (25) and the winding roller (6) are each provided with a narrow gear disc (28 or 29).

4. Roller blind according to claim 2 or 3, characterized in that the disc (29) of the winding roller (6) or the winding roller itself is equipped to register their respective angular position or number of revolutions with an increment mark (encoder), which can be evaluated by an optical sensor is.

5. Roller blind according to one of the preceding claims, characterized in that for radio remote control of the roller blind (1), the electronic control unit (32) of the electric motor (25) is provided with a - preferably multi-channel - remote hand control.

6. Roller blind according to one of the preceding claims, characterized in that for the straight and trouble-free running of the blind cloth (5) during its winding and unrolling, on both sides of the roller cloth (5) lateral guide elements (37) are provided.

7. Roller blind according to one of the preceding claims, characterized in that the blind cloth (5) is provided with figures and / or advertisements and / or other information.

8. Roller blind according to one of the preceding claims, characterized in that the adhesive device is in two parts and that between the two adhesive parts photovoltaic cells for the Power supply of the controller and the electric motor are arranged.

9. Roller blind according to claim 9, characterized in that the

Adhesive device comprises a double-sided adhesive foam, the body profile from the window or the window glass so that between the photovoltaic cells and the window air can circulate.

10. Roller blind according to one of the preceding claims, characterized in that the lower edge of the roller blind is provided with a weight rod which by gravity against the

Motor drive acts and therefore spans the scarf.

11. Roller blind according to claim 10, characterized in that for mounting on diagonal windows lateral guide wires or the like. are provided, on which guide eyes slide, which are connected to the weight rod.

12. RoIIo according to any one of the preceding claims, characterized in that the body profile is made of aluminum, preferably extruded, and has recesses which cooperate as a receptacle of the nubs of the opposite side walls.