WO2002057586A1 - Electrical operator arrangement for a venetian blind - Google Patents
Electrical operator arrangement for a venetian blind Download PDFInfo
- Publication number
- WO2002057586A1 WO2002057586A1 PCT/DK2002/000024 DK0200024W WO02057586A1 WO 2002057586 A1 WO2002057586 A1 WO 2002057586A1 DK 0200024 W DK0200024 W DK 0200024W WO 02057586 A1 WO02057586 A1 WO 02057586A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- motor
- tilt
- raising
- raising cord
- cord system
- Prior art date
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
- E06B9/24—Screens or other constructions affording protection against light, especially against sunshine; Similar screens for privacy or appearance; Slat blinds
- E06B9/26—Lamellar or like blinds, e.g. venetian blinds
- E06B9/28—Lamellar or like blinds, e.g. venetian blinds with horizontal lamellae, e.g. non-liftable
- E06B9/30—Lamellar or like blinds, e.g. venetian blinds with horizontal lamellae, e.g. non-liftable liftable
- E06B9/303—Lamellar or like blinds, e.g. venetian blinds with horizontal lamellae, e.g. non-liftable liftable with ladder-tape
- E06B9/308—Lamellar or like blinds, e.g. venetian blinds with horizontal lamellae, e.g. non-liftable liftable with ladder-tape with coaxial tilting bar and raising shaft
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
- E06B9/24—Screens or other constructions affording protection against light, especially against sunshine; Similar screens for privacy or appearance; Slat blinds
- E06B9/26—Lamellar or like blinds, e.g. venetian blinds
- E06B9/28—Lamellar or like blinds, e.g. venetian blinds with horizontal lamellae, e.g. non-liftable
- E06B9/30—Lamellar or like blinds, e.g. venetian blinds with horizontal lamellae, e.g. non-liftable liftable
- E06B9/32—Operating, guiding, or securing devices therefor
Definitions
- the present invention relates to an ' electrical operator arrangement for a Venetian blind comprising operating members which are preferably situated in a top casing, a bottom bar connected to the operating members by means of a raising cord system, and a number of ladder cords connected to a tilt mechanism, said ladder cords being situated between the bottom bar and the operating members and carrying a number of slats, where said operator arrangement comprises a motor with a motor casing and a motor armature, where said motor is on one hand part of the tilt mechanism in such a manner that the tilt mechanism, by means of a tilt member, can tilt the slats in one direction or the other depending on the operating direction of the motor, and on the other hand constitutes a part of the raising cord system in such a manner that the bottom bar can be raised or lowered depending on the operating direction of the motor.
- FIG. 1 shows schematically a first embodiment according to the invention of a Venetian blind with an operator arrangement
- Fig. 2 shows schematically another embodiment according to the invention of a Venetian blind with an operator arrangement
- Fig. 3 shows schematically in a partial section an embodiment of a locking arrangement which may be incorporated in the embodiment according to fig. 2, and
- Figs. 4a-4c show schematically sections along the line IV-IV in fig. 3 at various rotating positions of the motor shaft.
- FIG. 1 a Venetian blind with a bottom bar 1 and two raising cords 7, 8 is seen. Each raising cord's one end is connected to the lower side of the bottom bar 1, while its opposite end is connected to the upper side of the bottom bar 1.
- the bottom bar 1 can be guided in not shown guide rails, which are mounted along frame sides in for instance a roof window where the Venetian blind is mounted.
- tilt system and raising cord system must be interpreted in the broadest possible sense, i.e. so that each of them comprises everything situated on the respective one or the other side of the air gap in the motor used for the operation.
- the one raising cord 7 is lead downwards to a first member for change of direction situated at the lower part of the main window frame. From here the raising cord 7 is lead upwards along the window frame and around a driving pulley 13.
- the raising cords 7, 8 may be wound only half a turn round the driving pulley, but in practice, because of the transmission of power from the driving pulley 13 to the raising cords 7, 8 it is preferable to add one or more addi- tional full windings.
- the raising cord 7 is lead down to a second member for change of direction 4 and horizontally to a third member for change of direction 57. From here the raising cord 7 is lead down to the bottom bar 1 and connected hereto. Depending on where the raising cord 7 is desired to be lead to the bottom bar 1, the distance which the raising cord is lead horizontally, can be varied.
- the raising cord 7 may, however, also be lead down in the vicinity of and along the window frame.
- the guiding of the raising cord 8 is similar to that of the raising cord 7.
- the other raising cord 8 from the bottom side of the bottom bar 1 is lead downwards to a member for change of direction 28.
- the raising cord 8 is lead upwards to the top casing, and by means of two members for change of direction 6a, 6b horizontally along said casing and vertically up to and around the driving pulley 13.
- From the driving pulley 13 the raising cord 8 is guided down to the member for change of direction 4 and horizontally to a member for change of direction 58, from where the raising cord 8 is lead down to the bottom bar 1 and connected hereto.
- raising cords 7 and 8 are both lead via the same member for change of direction . There is nothing to prevent using two separate members for change of direction instead of one common one.
- each of the raising cords 7 and 8 forms, as it appears form the information given above, a closed loop from the top of the bottom bar 1 to the bottom of the bottom bar 1. By means of these closed loops, the bottom bar 1 can be raised or lowered by exercising a pulling force on the raising cords 7, 8 in the one or the other direction.
- This pulling force on the raising cords 7, 8 is obtained by a reversible elec- trie motor 12, for instance a DC motor, the motor armature of which in the shown embodiment is connected to the driving pulley 13 via a shaft 17.
- the loops formed by the raising cords 7 and 8 are guided sufficiently tightly in order to obtain sufficient fric- tion to enable the transmission of force between the raising cords 7 and 8 and the driving pulley 13.
- the ladder cords have two side cords 3a, 3b each. Between these side cords 3a, 3b there are a number of rungs 3c, on which blind slats 18 are resting. For the sake of clarity, only one of these blind slats 18 is shown in fig. 1.
- the ladder cords 3 and the tilt members 9 are identical, they are provided with the same reference numbers, and the mode of operation will subsequently be described as if there were one only.
- the two side cords 3a, 3b of a ladder cord 3 are in the top casing guided in either direction around a tilt member 9 in the form of a cylinder body and attached to this body. Depending on the diameter, the side cords may be wound several times in opposite directions around the cylinder body before being attached thereto.
- the tilt member 9 is in fixed connection with a shaft 16 which again is connected to the motor 12.
- the shaft 16 is permanently connected to the casing of the motor 12.
- the motor 12 is not in fixed connection with the top casing but is rotatably journalled by means of the two shafts 16 and 17, i.e. the shaft connected to the motor armature 17 and the shaft connected to the casing 16.
- the shaft 16 is furthermore provided with a blocking member limiting the angle with which the shaft 16 may rotate relative to the top casing.
- the blocking member comprises a first cogwheel 10 in fixed connection with the shaft 16, said cogwheel meshing with another cogwheel 11.
- the other cogwheel 11 is journalled in such a manner on a shaft 19 that it is freely rotatable when not taking into account the meshing with the first cogwheel 10.
- the shaft 19 is fixed relative to the top casing.
- the other cogwheel 11 shows a discontinuity 20 in the cogging.
- This discontinuity can for example be a missing tooth gap, or a tooth which is taller or wider than the others .
- the motor 12 is, as mentioned, for instance a reversible DC motor where the direction of rotation of the motor armature relative to the casing is reversed by means of a reversal of the polarity of the supply voltage.
- the expression direction of rotation of the motor will be used. This should be interpreted as the direction of the movement of the motor armature relative to the motor casing. If operation of the blind is desired in the given situation, this is effected by supplying the motor 12 with current through a cable 14 by means of an electrical operating member.
- the electrical operating member can be for example a switch with three positions, i.e. a neutral disconnected centre position and two activation positions, one of which supplies the motor 12 with current of one polarity, and the other activation position supplies the motor 12 with current of the opposite polarity.
- the mo- tor 12 can be activated in the one or the other directions of rotation.
- the switch is operated in such a manner that the motor 12 is supplied with current for the first direction of rotation, the motor armature rotates in the given direction of rotation relative to the motor casing.
- the motor 12 is as mentioned not in fixed connection with the top casing, but rotatably journalled relative hereto. Therefore there is in principle provided for both that the motor casing remains stationary while the motor armature rotates, and the opposite situation, i.e. that the motor casing rotates while the armature remains stationary.
- the operator arrangement is therefore designed in such a manner that the resistance, i.e. the friction and the inertia in the raising cord system 7, 8 with the members for change of direction 4, 6a, 6b, 27, 28, 57, 58, the winding of the cords 7, 8 around the driving pulley, the friction in the bearing 17 as well as the possible guiding of the bottom bar in guide rails, is considerably higher than the resistance from the tilt mechanism with the ladder cords 3 and the blocking members .
- the motor casing, the shaft 16, the tilt members 9 and the cogwheel 10 rotate together while at the same time rotating the cogwheel 11.
- the cylinder 9 is turned in such a manner that one of the side cords 3a, 3b is would up on the cylinder while the other one is unwound.
- This achieves the tilt movement of the slats 18, because one of the side cords 3a, 3b is raised while the other one is lowered, such that the ladder rungs on which the slats 18 are resting, are tilted.
- the system of motor casing, shaft 16, tilt members 9 and blocking members will turn so far that the blocking members block in the manner described above.
- the cable 14 is designed in such a manner that the rotation of the motor casing is not obstructed. In the shown embodiment this design consists of an adaptation of the length of the cable 14 to the maximum rotation of the motor casing, but the skilled person will understand that other designs can be used, such as for example collector shoes.
- the current to the motor 12 is interrupted, when the bottom bar 1 is at the desired level .
- a desired tilt position of the slats 18 by briefly operating the blind in the opposite direction, as this simply causes the blocking members to move away from the blocking position because of the previously described friction and inertia conditions.
- the blocking members themselves could also be as arm pairs 69, 70 mounted in connection with the motor casing 12 and interacting with a permanent stop 68, as illustrated in fig. 3 in connection with another embodiment of the invention, which will be described below.
- the embodiment shown in fig 2 has a slightly different raising cord system where the raising cords 7, 8 do not form closed loops, but end at the bottom bar 1.
- a coiling drum 71 which is preferably provided with an external thread, in which the raising cords 7, 8 are bedded during the winding.
- One of these, namely the member for change of direction 6c is displaceable concurrently with the winding of the raising cords 6, 7, as indicated with a double arrow in fig. 2.
- the bearing 67 contributes with a rather large part of the total friction of the raising system.
- Fig. 3 is a partial sectional drawing, i.e. the coiling drum 71 and the wound ladder cords 7, 8 are shown in sections, however, in order to facilitate the understanding of the function of the system, it is illustrated that the ladder cords 7, 8 are passing down on the face of the coiling drum seen relative to the drawing.
- the locking arrangement comprises a bearing block 67, 67a, in which the motor shaft 65 is jour- nalled.
- This bearing has a built-in friction, such that the total resistance from friction and inertia, as it will be described later, is higher than the resistance in the tilt system.
- a carrier 65a On the motor shaft a carrier 65a has been formed, where said carrier during rotation may partly influence a coil spring 63 , partly influence another carrier 66, which is connected to a hollow coiling drum 71 to the raising cords 7, 8.
- the other carrier 66 is fixed on a shaft with two shaft parts 64a, 64b.
- the one shaft part 64a is journalled in a bore in the motor shaft 65 while the other shaft part 64b ends in a cogwheel 72 which is engaged with a suitable projection 73 situated on the inside of the coiling drum 71.
- the carriers, springs and shafts of the locking arrangement are located in the hollow coiling drum 71 in such a manner that the total locking arrangement does not take up unnecessary space.
- the motor casing is provided with blocking members in the form of a pair of arms 69 , 70, in the form of for instance a couple of screws.
- blocking members in the form of a pair of arms 69 , 70, in the form of for instance a couple of screws.
- other blocking members can be used as required, such as for example the ones illustrated in fig. 2.
- the tilt system is in a neutral position where the blocking members are not in action. From this position the motor casing will, when the motor is supplied with current, be able to turn in the one or the other direction, as desired, since the friction between the bearing 67 and the motor shaft 65 is so high that it exceeds the total resis- tance met by the motor casing in the form of friction and inertia in the rest of the tilt system'.
- the motor shaft will thus remain in the same position, and the tilt system can therefore tilt the slats 18 between the two extreme positions where the blocking members enter into action.
- the bearing block 67 is seen with a cylindrical part 67a.
- a through bore in which the motor shaft 65 is frictionally jour- nalled.
- a bore which serves as bearing for another shaft 64.
- a carrier 65a is pro- vided, and likewise on the shaft 64a, 64b a carrier 66 is provided.
- the carrier 66 is influenced in a clockwise direction by gravity on the raising cords 7, 8 as shown with the arrow g.
- the carrier 66 presses the radially deflected part 631 of the spring coil 63 in a clockwise direction which makes the spring coil 63 squeeze the cylindrical part 67a of the fixed bearing block 67.
- This also efficiently keeps the shaft 64a, 64b in position and thus also the coiling drum 71, the raising cords 7, 8, the blind slats 18 and bottom bar 1 in a given position.
- any of the situations shown in figs. 4a-4c will be stationary, as long as the tilt system has not reached one of its extreme positions, where it is blocked by the blocking means.
- the blocking means enter into function at one of the extreme positions of the system, the rotation of the motor casing is blocked, and instead the motor shaft 65 and thus the engaging member 65a start rotating.
- the engaging member 65a moves from the position shown in fig. 4a to the position shown in fig. 4b.
- the carrier 65a presses the radially deflected part 630 of the spring coil 63 and thereby causes that said carrier is loosened relative to the cylindrical part 67a of the bearing block 67.
- the spring 63 will start rotating relative to the cylindrical part 67a of the bearing block 67 under the influence of the motor torque transferred via the carrier 65a and gravity transferred via the carrier 66. All three parts, i.e. the two carriers 65a, 66 and the spring 63 will thus turn together while the slats of the blind 18 and the bottom bar 1 are lowered.
- the carrier 65a presses on the second one of the radial deflections 631 of the spring coil 63, and thereby loosens the spring coil 63 in the same way as it did in the opposite direction by means of the first deflection 630.
- the carrier 65a squeezes the carrier 66 via the deflection 631 and thereby raises the blind slats 18 and the bottom bar 1 against gravity.
- the motor shaft is stationary until the motor casing is blocked in an extreme position of the tilt movement of the slats, after which the motor casing is stationary while the motor shaft is turning.
- the tilt mechanism be connected to the motor armature and the raising mechanism to the motor casing.
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Blinds (AREA)
- Operating, Guiding And Securing Of Roll- Type Closing Members (AREA)
- Percussion Or Vibration Massage (AREA)
- Bidet-Like Cleaning Device And Other Flush Toilet Accessories (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DK02715372T DK1352148T3 (en) | 2001-01-16 | 2002-01-15 | Electric operator arrangement for a blind |
AT02715372T ATE444432T1 (en) | 2001-01-16 | 2002-01-15 | ELECTRICAL ACTUATING ARRANGEMENT FOR BLINDS |
EP02715372A EP1352148B1 (en) | 2001-01-16 | 2002-01-15 | Electrical operator arrangement for a venetian blind |
DE60233860T DE60233860D1 (en) | 2001-01-16 | 2002-01-15 | ELECTRICAL OPERATING ARRANGEMENT FOR JALOUSIE |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DKPA200100066 | 2001-01-16 | ||
DKPA200100066 | 2001-01-16 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2002057586A1 true WO2002057586A1 (en) | 2002-07-25 |
Family
ID=8160022
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DK2002/000024 WO2002057586A1 (en) | 2001-01-16 | 2002-01-15 | Electrical operator arrangement for a venetian blind |
Country Status (7)
Country | Link |
---|---|
EP (1) | EP1352148B1 (en) |
CN (1) | CN1208541C (en) |
AT (1) | ATE444432T1 (en) |
DE (1) | DE60233860D1 (en) |
DK (1) | DK1352148T3 (en) |
ES (1) | ES2334334T3 (en) |
WO (1) | WO2002057586A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1435426A1 (en) * | 2002-12-30 | 2004-07-07 | Ober S.r.l. | Apparatus for adjusting the position of the slats of Venetian blinds and Venetian blind |
GB2440740A (en) * | 2006-08-09 | 2008-02-13 | Ke-Min Lin | Adjustable structure for adjusting the angle and the rise and fall of curtain blades |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1683007A1 (en) * | 1966-07-15 | 1971-11-11 | Hunter Douglas | Venetian blind |
DK158054B (en) * | 1985-01-10 | 1990-03-19 | Rasmussen Kann Ind As | ELECTRIC DRIVER ARRANGEMENT FOR PERSIENNE |
US5628356A (en) * | 1995-03-06 | 1997-05-13 | Marocco; Norbert | Combined tilt and lift control for window coverings |
EP1052365A2 (en) * | 1999-05-11 | 2000-11-15 | Hunter Douglas Industries B.V. | Operating mechanism for a venetian blind |
-
2002
- 2002-01-15 EP EP02715372A patent/EP1352148B1/en not_active Expired - Lifetime
- 2002-01-15 WO PCT/DK2002/000024 patent/WO2002057586A1/en not_active Application Discontinuation
- 2002-01-15 AT AT02715372T patent/ATE444432T1/en not_active IP Right Cessation
- 2002-01-15 CN CNB028037480A patent/CN1208541C/en not_active Expired - Fee Related
- 2002-01-15 DE DE60233860T patent/DE60233860D1/en not_active Expired - Lifetime
- 2002-01-15 DK DK02715372T patent/DK1352148T3/en active
- 2002-01-15 ES ES02715372T patent/ES2334334T3/en not_active Expired - Lifetime
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1683007A1 (en) * | 1966-07-15 | 1971-11-11 | Hunter Douglas | Venetian blind |
DK158054B (en) * | 1985-01-10 | 1990-03-19 | Rasmussen Kann Ind As | ELECTRIC DRIVER ARRANGEMENT FOR PERSIENNE |
US5628356A (en) * | 1995-03-06 | 1997-05-13 | Marocco; Norbert | Combined tilt and lift control for window coverings |
EP1052365A2 (en) * | 1999-05-11 | 2000-11-15 | Hunter Douglas Industries B.V. | Operating mechanism for a venetian blind |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1435426A1 (en) * | 2002-12-30 | 2004-07-07 | Ober S.r.l. | Apparatus for adjusting the position of the slats of Venetian blinds and Venetian blind |
WO2004059117A1 (en) * | 2002-12-30 | 2004-07-15 | Ober S.R.L. | Apparatus for adjusting the position of the slats of venetian blinds and venetian blind |
US7520310B2 (en) | 2002-12-30 | 2009-04-21 | Ober S.R.L. | Apparatus for adjusting the position of the slats of venetian blinds and venetian blind |
GB2440740A (en) * | 2006-08-09 | 2008-02-13 | Ke-Min Lin | Adjustable structure for adjusting the angle and the rise and fall of curtain blades |
GB2440740B (en) * | 2006-08-09 | 2009-02-25 | Ke-Min Lin | An adjustable structure for adjusting the angle and the rise and fall of curtain blades |
Also Published As
Publication number | Publication date |
---|---|
CN1486393A (en) | 2004-03-31 |
EP1352148B1 (en) | 2009-09-30 |
DE60233860D1 (en) | 2009-11-12 |
ATE444432T1 (en) | 2009-10-15 |
CN1208541C (en) | 2005-06-29 |
EP1352148A1 (en) | 2003-10-15 |
ES2334334T3 (en) | 2010-03-09 |
DK1352148T3 (en) | 2009-12-21 |
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