US20190284876A1 - Control of architectural opening coverings - Google Patents
Control of architectural opening coverings Download PDFInfo
- Publication number
- US20190284876A1 US20190284876A1 US16/273,100 US201916273100A US2019284876A1 US 20190284876 A1 US20190284876 A1 US 20190284876A1 US 201916273100 A US201916273100 A US 201916273100A US 2019284876 A1 US2019284876 A1 US 2019284876A1
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- United States
- Prior art keywords
- motor
- drive shaft
- manual control
- roller tube
- covering
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
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Classifications
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- 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
- E06B9/56—Operating, guiding or securing devices or arrangements for roll-type closures; Spring drums; Tape drums; Counterweighting arrangements therefor
- E06B9/68—Operating devices or mechanisms, e.g. with electric drive
- E06B9/74—Operating devices or mechanisms, e.g. with electric drive adapted for selective electrical or manual operation
-
- 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
-
- 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
- E06B9/40—Roller blinds
-
- 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
- E06B9/40—Roller blinds
- E06B9/42—Parts or details of roller blinds, e.g. suspension devices, blind boxes
-
- 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
- E06B9/56—Operating, guiding or securing devices or arrangements for roll-type closures; Spring drums; Tape drums; Counterweighting arrangements therefor
- E06B9/68—Operating devices or mechanisms, e.g. with electric drive
-
- 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
- E06B9/56—Operating, guiding or securing devices or arrangements for roll-type closures; Spring drums; Tape drums; Counterweighting arrangements therefor
- E06B9/68—Operating devices or mechanisms, e.g. with electric drive
- E06B9/72—Operating devices or mechanisms, e.g. with electric drive comprising an electric motor positioned inside the roller
-
- 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
- E06B9/56—Operating, guiding or securing devices or arrangements for roll-type closures; Spring drums; Tape drums; Counterweighting arrangements therefor
- E06B9/78—Operating, guiding or securing devices or arrangements for roll-type closures; Spring drums; Tape drums; Counterweighting arrangements therefor for direct manual operation, e.g. by tassels, by handles
-
- 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
- E06B2009/2423—Combinations of at least two screens
- E06B2009/2429—One vertical sheet and slats
-
- 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
- E06B9/262—Lamellar or like blinds, e.g. venetian blinds with flexibly-interconnected horizontal or vertical strips; Concertina blinds, i.e. upwardly folding flexible screens
- E06B2009/2627—Cellular screens, e.g. box or honeycomb-like
-
- 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
- E06B9/56—Operating, guiding or securing devices or arrangements for roll-type closures; Spring drums; Tape drums; Counterweighting arrangements therefor
- E06B9/68—Operating devices or mechanisms, e.g. with electric drive
- E06B2009/6809—Control
-
- 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
- E06B9/56—Operating, guiding or securing devices or arrangements for roll-type closures; Spring drums; Tape drums; Counterweighting arrangements therefor
- E06B9/68—Operating devices or mechanisms, e.g. with electric drive
- E06B2009/6809—Control
- E06B2009/6818—Control using sensors
-
- 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
- E06B9/56—Operating, guiding or securing devices or arrangements for roll-type closures; Spring drums; Tape drums; Counterweighting arrangements therefor
- E06B9/68—Operating devices or mechanisms, e.g. with electric drive
- E06B2009/6809—Control
- E06B2009/6818—Control using sensors
- E06B2009/6845—Control using sensors sensing position
-
- 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
- E06B9/56—Operating, guiding or securing devices or arrangements for roll-type closures; Spring drums; Tape drums; Counterweighting arrangements therefor
- E06B9/68—Operating devices or mechanisms, e.g. with electric drive
- E06B2009/6809—Control
- E06B2009/6818—Control using sensors
- E06B2009/6854—Control using sensors sensing torque
-
- 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
- E06B9/56—Operating, guiding or securing devices or arrangements for roll-type closures; Spring drums; Tape drums; Counterweighting arrangements therefor
- E06B9/68—Operating devices or mechanisms, e.g. with electric drive
- E06B9/72—Operating devices or mechanisms, e.g. with electric drive comprising an electric motor positioned inside the roller
- E06B2009/725—Operating devices or mechanisms, e.g. with electric drive comprising an electric motor positioned inside the roller with epicyclic or planetary gear train
-
- 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
- E06B9/56—Operating, guiding or securing devices or arrangements for roll-type closures; Spring drums; Tape drums; Counterweighting arrangements therefor
- E06B9/78—Operating, guiding or securing devices or arrangements for roll-type closures; Spring drums; Tape drums; Counterweighting arrangements therefor for direct manual operation, e.g. by tassels, by handles
- E06B2009/785—Operating, guiding or securing devices or arrangements for roll-type closures; Spring drums; Tape drums; Counterweighting arrangements therefor for direct manual operation, e.g. by tassels, by handles by belts, straps, bands, tapes, cords, tassels
-
- 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
-
- 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
- E06B9/264—Combinations of lamellar blinds with roller shutters, screen windows, windows, or double panes; Lamellar blinds with special devices
-
- 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
- E06B9/322—Details of operating devices, e.g. pulleys, brakes, spring drums, drives
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
- F16H59/02—Selector apparatus
- F16H59/0278—Constructional features of the selector lever, e.g. grip parts, mounting or manufacturing
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T74/00—Machine element or mechanism
- Y10T74/20—Control lever and linkage systems
- Y10T74/20012—Multiple controlled elements
- Y10T74/20018—Transmission control
- Y10T74/2014—Manually operated selector [e.g., remotely controlled device, lever, push button, rotary dial, etc.]
Definitions
- This disclosure relates generally to architectural opening covering assemblies and, more particularly, to methods and apparatus to control architectural opening covering assemblies.
- Roller blinds provide shading and privacy.
- Such coverings typically include a manually operated cord, chain or pull tube or a motorized roller tube connected to covering fabric, which may be slatted or louvered.
- the fabric can be fitted with a bottom rail and optionally run through a pair of opposing vertical frame or track members, one for each side edge of the fabric, so that the fabric raises and falls in a designated path and is not subjected to motion from, for example, blowing wind.
- FIG. 1 illustrates an example implementation of a roller type architectural opening covering with a manual control
- FIG. 2 illustrates an example implementation of a roller type architectural opening covering with a one-way slip clutch to provide a torque limiting motor coupling.
- FIGS. 3-6 are flowcharts illustrating example methods to control operation of a roller type architectural opening covering.
- FIG. 7 illustrates a torque limiting motor configuration
- FIG. 8 illustrates a torque limiting motor coupling
- FIG. 9 is an isometric illustration of an example architectural opening covering assembly including an example manual controller.
- FIG. 10 is an enlarged view illustrating the manual controller of the example architectural opening covering assembly of FIG. 9 .
- FIG. 11 is a perspective view of the example manual controller of the example architectural opening covering assembly of FIG. 9 .
- FIG. 12 is a side view of an example male connector of the example manual controller of FIG. 11 .
- FIG. 13 is an exploded view of the example manual controller of FIG. 11 .
- FIG. 14 is a perspective view of an example clutch assembly and motor of the example architectural opening covering assembly of FIG. 9 .
- FIG. 15 is a perspective view of an example roller tube of the example architectural opening covering assembly of FIG. 9 .
- FIG. 16 is a cross-sectional view of the example clutch assembly and the example motor of FIG. 14 .
- FIG. 17 is a cross-sectional view of an example first clutch of the example clutch assembly of FIG. 16 taken along line 17 A- 17 A.
- FIG. 18 is a cross-sectional view of an example second clutch of the example clutch assembly of FIG. 16 taken along line 18 A- 18 A.
- FIG. 19 is a perspective view of an example local controller of the example architectural opening covering assembly of FIG. 9 .
- FIG. 20 is a cross-sectional view of a portion of the example local controller of FIG. 19 communicatively coupled to an example central controller and an example power source.
- FIG. 21 is another cross-sectional view of the example local controller of FIG. 19 .
- FIG. 22 is a block diagram of an example processor platform to execute the machine readable instructions of FIGS. 3-6 to implement a controller of the control board of FIG. 1 , the control board of FIG. 19 , or any other controller.
- a manual control is provided.
- the architectural opening covering with the manual control may also be motorized.
- the manual control does not cause the covering to be about of synchronization with any components for limiting the travel of the covering (e.g., mechanical or electronic limit switches). Accordingly, in such implementations, operation of the manual control does not necessitate recalibration or resetting of the components for limiting the travel of the covering.
- the components of the architectural opening covering will be referenced in polar coordinates.
- the axial coordinate runs along the longitudinal axis of the covering, the radial coordinate runs perpendicularly thereto and the circumferential coordinate runs in a circular direction in an end view of the covering.
- “axial proximate” or “proximate” means closer to the right side of the figure.
- “axial distal” or “distal” means further from the right side of the figure.
- FIG. 1 illustrates an example covering 100 that includes a shaft connector 102 and a manual control 104 .
- the shaft connector 102 may be a one-way slipping bearing as described in FIGS. 7 and 8 .
- the manual control 104 enables manual operation of the covering 100 by a person (e.g., when motorized control is not available or desirable to the person).
- the roller blind 100 of the illustrated example includes the one-way slipping bearing 102 , the manual control 104 , the motor 106 , a gearbox 108 , a control board 110 , a roller tube 112 , a slip-ring connector 114 , and a clutch/mount 116 .
- the motor 106 and the manual control 104 are located nearest the proximate side of the covering 100 .
- components of the covering 100 could be reversed so that the motor 106 and the manual control 104 are located nearest the distal side of the covering 100 .
- the slip-ring connector 114 of the illustrated example is insertable in a mating connector 118 for mounting the covering 100 in or adjacent to an architectural opening and for electrically connecting the covering 100 to electrical power.
- the example slip-ring connector 114 includes a frame 120 having first and second edges 121 , 122 defining an opening 123 into which an axially extending protrusion 115 of the slip-ring connector 114 is inserted when the covering 100 is mounted in or adjacent to the architectural opening.
- An outer radial surface 127 of the frame 114 receives an inner radial surface of a bracket 134 of the slip-ring connector 114 .
- first contacts 124 , 125 and second contact 126 Disposed inside frame 120 are first contacts 124 , 125 and second contact 126 .
- the first contacts 124 , 125 of the illustrated example comprise two metal flanges bent over to form a deformable metal contact.
- the first contacts 124 , 125 are electrically connected to supply wires 130 that supply electrical power to the mating connector 118 .
- the first contacts 124 , 125 rest upon a radial ring 136 of the axially extending protrusion 115 .
- the first contacts 124 , 125 maintain an electrical connection with the radial ring 136 . Accordingly, the covering can rotate with respect to the mating connector 118 while an electrical connection is maintained.
- any number of contact(s) e.g., 1 , 3 , 4 , etc.
- the second contact 126 of the illustrated example comprises a metal flange upon which rests a pin 138 that extends beyond a distal end of the axially extending protrusion 115 .
- the second contact 126 is electrically connected to the supply wires 130 . While the covering 100 rotates, the second contact 126 maintains the electrical connection with the pin 138 to provide electrical power to the covering 100 .
- the example frame 120 of FIG. 1 is fixed to a bracket 128 that is fixed in or adjacent to an architectural opening using a mechanical fastener such as a screw 132 .
- the supply wires 130 pass through openings (not illustrated) in the bracket 128 and the frame 130 .
- mating connector 118 While an example mating connector 118 is disclosed herein, other arrangements may be used. For example, other configurations of slip-ring connectors may be used.
- the bracket 134 is disposed inside of, and is fixed to, the roller tube 112 .
- the pin 138 is disposed in a sleeve formed inside the connector.
- a washer 142 is mounted to the pin 138 .
- a spring 140 is seated between the fixed washer 142 and an inner surface of the bracket 134 . The force of the spring 140 biases the pin 138 in the distal direction and into engagement with the second contact 126 when the covering 100 is inserted in the mating connector 118 .
- Wires 143 electrically connect the pin 138 and the radial ring 136 , respectively, to the control board 110 . Accordingly, electrical power is supplied to the control board 110 when the covering 100 is mounted in the mating bracket 118 and electrical power is supplied to the supply wires 130 . In other examples, batteries may provide power to the control board 110 and the corresponding wired electrical elements may be eliminated. In such examples, the slip-ring connector 114 may not include components for electrical connection, but will provide mounting support for the roller blind 100 .
- the control board 110 of the illustrated example controls the operation of the covering 100 .
- the example control board 110 includes a wireless receiver and a torque sensing control.
- the wireless receiver is responsive to commands from a wireless remote control to direct the operation of the covering 100 .
- the torque sensing control operates to stop the motor 106 whenever a torque overload is detected (e.g., when the covering 100 is fully wound, when the covering 100 is fully unwound, or when an obstruction prevents winding/unwinding of the covering 100 ).
- the example torque sensing control of the illustrated example includes a winding threshold and an unwinding threshold such that the winding threshold is greater than the unwinding threshold due to the additional torque encountered when winding the covering 100 . Alternatively, a single threshold may be used.
- the control board 110 may include additional circuitry or electronics for the covering 100 such as, for example, a motor controller.
- control board 110 includes a timer control to stop the motor 106 after an amount of time sufficient to fully wind or fully unwind the roller blind 100 .
- the control board 110 of the illustrated example is electrically connected to the motor 106 via wires 145 .
- the motor 106 of the illustrated example is an electric motor having an output shaft.
- the output shaft of the motor 106 is disposed on the proximate side while the radial body (e.g., shell or casing) of the motor 106 is disposed on the distal side of the motor 106 .
- the radial body of the motor 106 as illustrated in FIG. 1 is fixedly attached to a radial casing of the gearbox 108 while the output shaft of the motor 106 is connected to the internal components of the gearbox 108 .
- the radial casing of the gearbox 108 is fixedly attached to a radial frame 147 using mechanical fixtures such as screws 148 , 149 .
- the radial frame 147 is fixed to the interior radial surface of the roller tube 112 .
- the gearbox 108 of the illustrated example includes an output shaft 152 that is driven by the output shaft of the motor 106 via the gears of the gearbox 108 .
- the gears of the gearbox provide the appropriate revolution ratio between the shaft of the motor 106 and the shaft 152 is attached to the shaft coupling 102 , which is attached to an output of the clutch/mount 116 .
- the clutch/mount 116 is coupled with the manual control 104 .
- the example clutch/mount 116 of FIG. 1 includes hooks 162 , 164 that are insertable into openings 156 , 158 of a bracket 154 .
- the hooks 162 , 164 enable the covering 100 to be secured to the bracket 154 via the openings 156 , 158 .
- the bracket 154 of the illustrated example is secured in or adjacent to an architectural opening using a mechanical fixture such as a screw 160 .
- the hook and bracket mounting is provided by way of example and other systems for mounting the roller blind 100 may be used.
- the clutch/mount 116 holds the shaft coupling 102 , the output shaft 152 of the gearbox 108 , and, thereby, the output shaft of the motor 106 stationary with respect to the bracket 154 . Accordingly, the radial body of the motor 106 rotates with respect to the bracket 154 when the motor 106 is operated. The rotation of the radial body of the motor 106 causes the gearbox 108 , the frame 147 , and the roller tube 112 to rotate. Accordingly, the roller tube 112 will wind or unwind the covering material when the motor 106 is operated.
- the output shaft of the motor 106 is prevented from rotating by a brake included in the motor 106 .
- the gearbox 108 may include a brake or other components may be provided to prevent the output shaft of the motor 106 from rotating with respect to the radial body of the motor 106 .
- the operation of the manual control 104 e.g., by pulling a continuous cord loop
- the rotation of the shaft coupling 102 causes the output shaft 152 of the gearbox 108 to rotate.
- the rotation of the output shaft 152 of the gearbox 108 causes the radial casing of the gearbox 108 and the radial body of the motor 106 to rotate.
- the rotation of the radial body of the motor 106 causes the frame 147 and the roller tube 112 to rotate. Accordingly, the roller tube 112 will wind or unwind the covering material when the manual control 210 is operated.
- the roller blind 100 When the manual control 104 and the motor 106 are operated simultaneously, their operation is additive. When both the manual control 104 and the motor 106 are operated to wind the roller blind 100 , the roller blind 100 is wound at an increased rate. When both the manual control 104 and the motor 106 are operated to unwind the roller blind 100 , the roller blind 100 is unwound at an increased rate. When the manual control 104 and the motor 106 are operated in opposite directions, the roller blind 100 is more slowly wound or unwound depending on the relative movement of the manual control 104 and the motor 106 .
- the example motor uses torque detection to determine when the winding or unwinding limits have been reached, operation of the manual control 104 does not interfere with the motorized control of the roller blind 100 .
- calibration or resetting of limit positions is not necessary after operation of the manual control 104 .
- the limiter switches may not need to be calibrated or reset after operation of the manual control 104 where the operation of the operation of the manual control 104 is detected by the limiter switches. For example, when a screw (e.g., the screw of a mechanical limiter switch system is advanced when the manual control 104 is operated, the limiter switch system will not need to be calibrated after operation by the manual control 104 .
- the body of the motor 106 rotates while the output shaft of the motor 106 is stationary.
- the body of the motor 106 of the illustrated example includes winding coils (typically called the stator) while the output shaft includes a rod and magnet(s) (typically known as the rotor).
- winding coils typically called the stator
- the output shaft includes a rod and magnet(s) (typically known as the rotor).
- Other types of motors may be used.
- FIG. 2 illustrates an example covering 200 that includes a roller tube 201 containing a grooved hub 202 , a one-way slip clutch 204 , a gearbox 206 , and a motor 208 .
- the one-way slip clutch 204 is a torque limiting motor coupling that enables the covering 200 to be operated without the need for electronic or mechanical limiter switches.
- the covering 200 can be mounted with a manual control 210 that allows for manual winding or unwinding of covering material (not illustrated) attached to the roller tube 201 .
- the covering 200 is mounted with a stationary connector 212 .
- the grooved hub 202 includes grooves to receive splines of a radial protrusion 214 of the manual control 210 or splines of a radial protrusion 216 of the stationary connector 212 .
- a distal side of the grooved hub 202 is fixed to the rotation of the one-way slip clutch 204 by a tang. Accordingly, rotation of the grooved hub 202 applies rotational torque to the one-way slip clutch 204 .
- the one-way slip clutch 204 of the illustrated example includes an adapter shaft to receive a drive shaft 218 of the gearbox 206 .
- the adapter shaft is similar to the adapter shaft 90 described in conjunction with FIG. 5 .
- a proximate end of the casing of the gearbox 206 is fixed to a frame 220 that is fixed to an interior surface of the roller tube 201 . Accordingly, when the casing of the gearbox 206 is rotated, the frame 220 causes rotation of the roller tube 201 .
- a distal end of the casing of the gearbox is fixed to a casing of the motor 208 .
- the gearbox of the illustrated example includes an adapter shaft to receive a drive shaft of the motor 208 .
- the drive shaft of motor 208 rotatably drives gears of the gearbox 206 to, in turn, rotatably drive the drive shaft 218 of the gearbox 206 .
- the one-way slip clutch 204 prevents torque from being applied to the roller tube 201 of the illustrated example in the unwinding direction. Additionally, the one-way slip clutch 204 prevents torque exceeding a threshold from being applied to the roller tube 201 in the winding direction.
- the covering 200 includes wires 208 having a proximate end fixed to a distal end of the motor 208 .
- a distal end of the wires 208 are fixed to a slip-ring connector 222 .
- the slip-ring connector 222 of the illustrated example includes a first contact 224 and a second contact 226 .
- the slip-ring connector 222 receives an adapter 228 having a post 230 that includes a first conductive ring 232 and a second conductive ring 234 .
- the adapter 228 includes wires 236 including one or more plug(s) 238 .
- the adapter 228 (e.g., a conical cover, an end cap, a plug, etc.) can be releasably mounted in a cavity 242 formed by a first edge 244 and a second edge 246 of a bracket 240 .
- the bracket 240 can be secured in and or adjacent to an architectural opening.
- Supply wires 248 are connected to an electrical supply (e.g., a source of commercial power) and include one or more receptacle(s) 250 to receive the one or more plug(s) 238 .
- the supply wires 248 , wires 236 , and wires 221 may be replaced by a combination of wires and one or more batteries to provide electrical power to the roller blind 200 .
- the slip-ring connector 222 including the first contact 224 and the second contact 226 is rotated.
- the first contact 224 and the second contact 226 are deformable to allow the first contact 224 to remain in contact with the first conductive ring 232 and the second contact 226 to remain in contact with the second conductive ring 234 .
- the adapter 228 remains stationary in the bracket 240 when the roller tube 201 is rotated. Any other type of slip-ring or other type of connection may alternatively be used.
- the manual control 210 and the stationary connector 212 of the illustrated example include hooks 252 , 254 that are receivable by cavities 258 , 260 of a bracket 256 to mount the manual control 210 and/or the stationary connector 212 in and/or adjacent to an architectural opening to which the bracket 256 is secured.
- the manual control 210 of the illustrated example includes a beaded chain 262 to drive a pulley 264 .
- the pulley 264 is attached to the radial protrusion 214 via a clutch.
- the clutch prevents the radial protrusion from rotating when the pulley 264 is not being rotated by the beaded chain 262 .
- Other types of manual controls may be used such as, for example, a rope and pulley, a worm gear control, etc. Any type of mechanical or electronic clutch may be used.
- the clutch of the manual control 210 holds the radial protrusion 214 , the grooved hub 202 , the drive shaft 218 of the gearbox 206 , and, thereby, the output shaft of the motor 208 stationary with respect to the bracket 256 . Accordingly, the casing of the motor 208 rotates with respect to the bracket 256 when the motor 208 is operated.
- the rotation of the casing of the motor 208 causes the casing of the gearbox 206 , the frame 220 , and the roller tube 201 to rotate. Accordingly, the roller tube 201 will wind or unwind covering material when the motor 208 is operated.
- the gearbox 206 may include a brake or other components may be provided to prevent the output shaft of the motor 208 from rotating with respect to the casing of the motor 208 when the manual control 210 is operated.
- the operation of the manual control 210 e.g., by pulling the beaded chain 262 ) causes the pulley 264 to impart rotation on the radial protrusion 214 .
- the rotation of the radial protrusion 214 causes the grooved hub 202 , the drive shaft 218 of the gearbox 206 , and the drive shaft of the motor 208 to rotate.
- the rotation of the drive shaft 218 of the gearbox 206 causes the casing of the gearbox 206 and the casing of the motor 208 to rotate.
- the rotation of the casing of the gearbox 206 causes the frame 220 and the roller tube 201 to rotate. Accordingly, the roller tube 201 will wind or unwind covering material when the manual control 210 is operated.
- the manual control 210 and the motor 208 When the manual control 210 and the motor 208 are operated simultaneously, their operation is additive. When both the manual control 210 and the motor 208 are operated to wind the covering 200 , the material around the roller tube 201 is wound at an increased rate. When both the manual control 210 and the motor 208 are operated to unwind the covering 200 , the material around the roller tube 201 is unwound at an increased rate. When the manual control 210 and the motor 208 are operated in opposite directions, the covering 200 is more slowly wound or unwound.
- the casing of the motor 208 rotates while the drive shaft of the motor 208 is stationary.
- the casing of the motor 208 of the illustrated example includes winding coils (typically called the stator) while the output shaft includes a rod and magnet(s) (typically known as the rotor).
- winding coils typically called the stator
- the output shaft includes a rod and magnet(s) (typically known as the rotor).
- Other types of motors may be used.
- FIGS. 3-6 Flowcharts representative of example machine readable instructions for implementing a controller of, for example, the control board 120 of FIG. 1 , the control board 1900 of FIG. 19 , or any other controller is shown in FIGS. 3-6 .
- the machine readable instructions comprise a program for execution by a processing system such as the processing system 2200 discussed in connection with FIG. 22 .
- the program may be embodied in software stored on a tangible computer readable medium such as a CD-ROM, a floppy disk, a hard drive, a digital versatile disk (DVD), a Blu-ray disk, or a memory associated with the processor 2212 , but the entire program and/or parts thereof could alternatively be executed by a device other than the processor 2212 and/or embodied in firmware or dedicated hardware.
- a tangible computer readable medium such as a CD-ROM, a floppy disk, a hard drive, a digital versatile disk (DVD), a Blu-ray disk, or a memory associated with the processor 2212 , but the entire program and/or parts thereof could alternatively be executed by a device other than the processor 2212 and/or embodied in firmware or dedicated hardware.
- FIGS. 3-6 many other methods of implementing a controller may alternatively be used. For example, the order of execution of the blocks may be changed, and/or some of the blocks described may be changed, eliminated, or combined.
- FIGS. 3-6 may be implemented using coded instructions (e.g., computer readable instructions) stored on a tangible computer readable medium such as a hard disk drive, a flash memory, a read-only memory (ROM), a compact disk (CD), a digital versatile disk (DVD), a cache, a random-access memory (RAM) and/or any other storage media in which information is stored for any duration (e.g., for extended time periods, permanently, brief instances, for temporarily buffering, and/or for caching of the information).
- coded instructions e.g., computer readable instructions
- a tangible computer readable medium such as a hard disk drive, a flash memory, a read-only memory (ROM), a compact disk (CD), a digital versatile disk (DVD), a cache, a random-access memory (RAM) and/or any other storage media in which information is stored for any duration (e.g., for extended time periods, permanently, brief instances, for temporarily buffering, and/or for caching of the information).
- 3-6 may be implemented using coded instructions (e.g., computer readable instructions) stored on a non-transitory computer readable medium such as a hard disk drive, a flash memory, a read-only memory, a compact disk, a digital versatile disk, a cache, a random-access memory and/or any other storage media in which information is stored for any duration (e.g., for extended time periods, permanently, brief instances, for temporarily buffering, and/or for caching of the information).
- a non-transitory computer readable medium such as a hard disk drive, a flash memory, a read-only memory, a compact disk, a digital versatile disk, a cache, a random-access memory and/or any other storage media in which information is stored for any duration (e.g., for extended time periods, permanently, brief instances, for temporarily buffering, and/or for caching of the information).
- a non-transitory computer readable medium such as a hard disk drive, a flash memory, a read-only memory,
- FIG. 3 is a flowchart illustrating example method to control operation of a roller type architectural opening covering.
- the example method of FIG. 3 is described in conjunction with the covering 100 of FIG. 1 .
- the example method may be used with any other covering (e.g., the covering 200 of FIG. 2 ).
- the example instructions of FIG. 3 begin when the control board 110 receives an instruction to wind the roller tube 112 (block 302 ).
- the control board 110 may receive an instruction from a wireless remote control via a wireless receiver included in the control board 110 , from a wired remote control, from a button on a control panel, etc.
- the control board 110 operates the motor 106 in a winding direction (e.g., to raise covering material attached to the roller tube 112 ) (block 304 ).
- the clutch/mount 116 prevents rotation of the output shaft of the motor 106 .
- the control board 110 determines if the torque on the motor exceeds a winding torque threshold (block 306 ). For example, when the covering 100 is wound to its upper-most limit, a bottom bar or weight attached to the covering material will reach a frame of the covering 100 and prevent rotation of the roller tube 100 around which the covering material is wrapped. This stoppage will cause the torque on the motor to increase beyond a threshold.
- the threshold can be selected so that normal winding (e.g., when no obstruction is present) does not exceed the torque threshold, but winding against a frame or obstruction will cause the threshold to be passed.
- the motor 106 continues to operate until the threshold is exceeded. If the winding torque threshold has been exceeded (block 306 ), the motor is stopped (block 308 ). For example, when the covering 100 is fully wound or an obstruction preventing winding is encountered, the motor 100 will be stopped. The method of FIG. 3 then ends until a new instruction is received at the control board 110 .
- the example instructions of FIG. 4 begin when the control board 110 receives an instruction to unwind the roller tube 112 (block 402 ). In response to the instruction, the control board 110 operates the motor 106 in an unwinding direction (e.g., to lower covering material attached to the roller tube 112 ) (block 404 ). As previously described, the clutch/mount 116 prevents rotation of the output shaft of the motor 106 . Accordingly, the radial body of the motor 106 , the radial casing of the gearbox 108 , the frame 147 , and the roller tube 112 are rotated. The control board 110 determines if the torque on the motor exceeds an unwinding torque threshold (block 406 ).
- the covering material may begin to wind on the roller (e.g., raising the covering material).
- This winding will increase the torque on the motor (e.g., to levels similar to the levels found when operating the covering 100 in winding).
- the threshold can be selected so that normal unwinding does not exceed the torque threshold, but winding the covering material (e.g., after fully unwinding the covering material) will cause the threshold to be passed.
- the winding threshold exceeds the unwinding threshold so that end-of-material winding can be detected.
- the motor 106 continues to operate until the threshold is exceeded. If the unwinding torque threshold has been exceeded (block 406 ), the motor is stopped (block 408 ). For example, when the covering 100 is fully unwound and starts to wind, the motor 100 will be stopped. The method of FIG. 4 then ends until a new instruction is received at the control board 110 .
- FIG. 5 is a flowchart illustrating example instructions to control operation of a roller type architectural opening covering.
- the example of FIG. 5 is described in conjunction with the covering 200 of FIG. 2 .
- the example method may be used with any other covering (e.g., the covering 100 of FIG. 1 ).
- FIG. 5 begins when a controller (e.g., a controller of the controller board 110 of FIG. 1 receives an instruction to wind the roller tube 201 (block 502 ).
- the controller may receive an instruction from a wireless remote control via a wireless receiver included in the controller, from a wired remote control, from a button on a control panel, etc.
- the controller starts a timer (block 504 ).
- the timer may be set for a duration that is long enough for the covering 200 to be wound from its lower-most position to its upper-most position.
- the timer may additionally include an additional time to account for short delays in winding (e.g., a short amount of time during which the covering 200 is obstructed).
- the controller operates the motor 208 in a winding direction (e.g., to raise covering material attached to the roller tube 201 ) (block 506 ).
- a clutch of the manual control 210 or the stationary connector 212 prevents rotation of the drive shaft of the motor 208 . Accordingly, the casing of the motor 208 , the casing of the gearbox 206 , the frame 220 , and the roller tube 201 are rotated.
- the controller determines if the winding timer has expired (i.e., the winding time limit has been reached) (block 508 ).
- the covering 200 may have been wound from its lower-most position to its upper-most position.
- the covering 200 may have been wound from an intermediate position to its upper-most position.
- the motor 208 would continue to run when the covering 200 reaches its upper most position while the one-way slip clutch 204 slipped to prevent excessive torque from being applied to the roller tube 201 until the timer expired.
- the covering 200 may encounter an obstruction that prevents fully winding the covering material. In such an operation, the motor 208 would continue to run while the one-way slip clutch 204 slipped to prevent excessive torque from being applied to the roller tube 201 until the timer expired.
- the motor 208 continues to operate until the timer expires. If the winding timer has expired (block 508 ), the motor is stopped (block 510 ). The method of FIG. 5 then ends until a new instruction is received at the controller.
- FIG. 6 is a flowchart illustrating example instructions to control operation of a roller type architectural opening covering.
- the example of FIG. 6 is described in conjunction with the covering 200 of FIG. 2 .
- the example method may be used with any other covering (e.g., the covering 100 of FIG. 1 ).
- the example of FIG. 6 begins when a controller (not illustrated) receives an instruction to unwind the roller tube 201 (block 602 ).
- the controller may receive an instruction from a wireless remote control via a wireless receiver included in the controller, from a wired remote control, from a button on a control panel, etc.
- the controller starts a timer (block 604 ).
- the timer may be set for a duration that is long enough for the covering 200 to be unwound from its upper-most position to its lower-most position.
- the timer may additionally include an additional time to account for short delays in unwinding (e.g., a short amount of time during which the covering 200 is obstructed).
- the controller operates the motor 208 in an unwinding direction (e.g., to lower covering material attached to the roller tube 201 ) (block 606 ).
- a clutch of the manual control 210 or the stationary connector 212 prevents rotation of the drive shaft of the motor 208 .
- the casing of the motor 208 , the casing of the gearbox 206 , the frame 220 , and the roller tube 201 are rotated because the motor 208 no longer opposes unwinding of the covering 200 (e.g., where a weight attached to covering material of the covering 200 creates a torque to pull the covering material).
- the controller determines if the unwinding timer has expired (i.e., the unwinding time limit has been reached) (block 608 ).
- the covering 200 may have been unwound from its upper-most position to its lower-most position.
- the covering 200 may have been unwound from an intermediate position to its lower-most position.
- the motor 208 would continue to run when the covering 200 reaches its lower-most position while the one-way slip clutch 204 prevented torque from being applied to the roller tube 201 until the timer expired.
- the covering 200 may encounter an obstruction that prevents fully unwinding the covering material. In such an operation, the motor 208 would continue to run while the one-way slip clutch 204 slipped to prevent excessive torque from being applied to the roller tube 201 until the timer expired.
- the motor 208 continues to operate until the timer expires. If the unwinding timer has expired (block 608 ), the motor is stopped (block 610 ). The method of FIG. 6 then ends until a new instruction is received at the controller.
- FIG. 7 illustrates an example torque limiting motor coupling 68 that prevents a motor from applying torque to a roller tube 38 in an unwinding direction.
- the example configuration of FIG. 7 includes, for example, a motor output shaft coupling 70 positioned on a motor shaft (not labeled).
- a roller tube 38 is illustrated as an outer diameter of the system, which is connected to the fabric 74 and, in turn, the weighted rail 76 .
- a track 78 is also illustrated which guides the fabric 74 during winding and unwinding operations.
- the motor output shaft coupling 70 functions as a ratchet crank, where ratchet gear teeth 80 are part of the inner diameter 36 of the roller tube 38 or are fitted thereto by an additional adaptor (not illustrated).
- a pawl 82 is connected to the motor output shaft coupling 70 by a pivot 84 and a compression spring 86 .
- FIG. 8 illustrates an example implementation of a torque limiting motor coupling 88 , which will now be discussed.
- the torque limiting motor coupling 88 is unable to apply torque in the unwinding direction.
- the torque limiting motor coupling 88 also slips against a roller tube upon being subjected to opposing torque at a threshold level in a winding direction.
- the motor coupling 88 includes an adaptor shaft 90 , which is a keyed cylinder, adapted to fit outside of the distal end of a shaft of a motor.
- an adaptor shaft 90 Surrounding the adaptor shaft 90 , centered between opposing proximate end 91 and distal end, 93 of the adaptor shaft 90 , is a one-way bearing 92 .
- the one-way bearing 92 is analogous to the ratchet-pawl configuration of the torque limiting motor coupling 68 . That is, due to the one-way rolling of the outer bearing race with respect to the adaptor shaft 90 , an attached motor is unable to apply torque in the unwinding direction.
- a difference between the torque limiting motor coupling 88 and the ratchet-pawl configuration 68 is, for example, the bearing is quieter than a ratchet-pawl configuration.
- the torque limiting motor coupling 88 does not require a pivotable pawl 82 and also does not require a mating gear structure 80 in the roller tube 38 .
- a slip-clutch 96 is provided on the outer race 94 of the bearing 92 .
- the slip-clutch 96 is designed to slip against the bearing 92 .
- Holding the slip-clutch 96 in place, on its radial outer surface 98 is a spring 800 .
- the selection of the spring 800 (e.g., the spring force of the spring) defines the threshold torque required to slip the slip-clutch 96 against the bearing 92 .
- the slip-clutch 96 is not illustrated in FIG. 7 ; however, it can be integrated into that configuration as well.
- the bearing 92 , the slip-clutch 96 and the spring 800 are axially centered relative to each other and have substantially the same axial dimension.
- the example shaft 90 is longer than the bearing 92 , the slip-clutch 96 and the spring 800 .
- this provides the proximate end 91 and the distal shaft end 93 with a small amount of material for spacing the bearing 92 , the slip-clutch 96 and the spring 800 from the axial base of the adapter shaft 90 .
- the axial buffer zone on both sides of the torque limiting motor coupling 88 enables reversing the torque limiting motor coupling 88 depending on whether a motor is placed on the left or right hand side within a roller tube, due to, for example, the location of available wiring. Reversing the torque limiting motor coupling 88 is achieved by sliding the adaptor shaft 90 off of a motor shaft and reinstalling the adaptor shaft 90 so that the distal end 93 of the adaptor shaft 90 , rather than the proximate end 91 , faces a distal end of an attached motor.
- An example cavity 802 is defined between opposing, circumferentially spaced edges 804 , 806 of the slip-clutch 96 and edges 808 , 810 of the spring 800 , rendering the slip-clutch 96 and spring 800 “C” shaped.
- a base 812 of the cavity 802 is the outer race 94 of the bearing 92 .
- a first side 814 of the cavity 802 is defined by aligned edges 804 , 808 of the slip-clutch 96 and the spring 800 .
- a second side 816 of the cavity 802 is defined by aligned edges 806 , 810 of the slip-clutch 96 and the spring 800 .
- the example cavity 802 may be mated with a tang manufactured in a modified crown coupling.
- An example tang has a radial inner surface which does not reach the bearing 92 .
- the tang moves circumferentially between opposing sides 814 , 816 of the cavity 802 so that one of the tang surfaces presses against a respective one of the sides 814 , 816 of the cavity 802 , whereby the tang rotates with the slip-clutch 96 .
- the modified crown coupling is capable of rotating with an attached motor shaft.
- the bearing 92 will either roll or lock. If locked, the slip-clutch 96 will slip when torque at the threshold limit is applied. Accordingly, if a covering is obstructed during a winding operation, the slip-clutch 96 slips when the torque of the motor reaches a threshold limit. The motor shaft then spins, without spinning the roller tube 38 as long as torque above this threshold limit is maintained, preventing overstraining of the motor or the fabric of the covering.
- the slip-clutch 96 configuration should be selected so that slip occurs at a greater torque than required to wind the fabric.
- the configuration should be selected so that slip occurs at a lower torque than required to strain the motor.
- a motor can be equipped with an overload system including one or more sensors.
- a mechanical torque based sensor and/or an electrical current (e.g., amperage) based sensor may be used. This type of system would shut off the motor 18 after mechanically sensing torque which exceeds a threshold and/or sensing a current draw which exceeds a threshold.
- FIG. 9 is an isometric illustration of an example architectural opening covering assembly 900 .
- the covering assembly 900 includes a headrail 908 .
- the headrail 908 is a housing having opposed end caps 910 , 911 joined by front 912 , back 913 and top sides 914 to form an open bottom enclosure.
- the headrail 908 also has mounts 915 for coupling the headrail 908 to a structure above an architectural opening such as a wall via mechanical fasteners such as screws, bolts, etc.
- a roller tube 904 is disposed between the end caps 910 , 911 .
- FIG. 9 many different types and styles of headrails exist and could be employed in place of the example headrail 908 of FIG. 9 . Indeed, if the aesthetic effect of the headrail 908 is not desired, it can be eliminated in favor of mounting brackets.
- the assembly 900 includes a covering 906 , which is a cellular type of shade.
- the cellular covering 906 includes a unitary flexible fabric (referred to herein as a “backplane”) 916 and a plurality of cell sheets 918 that are secured to the backplane 916 to form a series of cells.
- the cell sheets 918 may be secured to the backplane 916 using any desired fastening approach such as adhesive attachment, sonic welding, weaving, stitching, etc.
- the covering 906 shown in FIG. 9 can be replaced by any other type of covering including, for instance, single sheet shades, blinds, and/or other cellular coverings.
- the covering 906 has an upper edge mounted to the roller tube 904 and a lower, free edge.
- the upper edge of the example covering 906 is coupled to the roller tube 904 via a chemical fastener (e.g., glue) and/or one or more mechanical fasteners (e.g., rivets, tape, staples, tacks, etc.).
- the covering 906 is movable between a raised position and a lowered position (illustratively, the position shown in FIG. 9 ). When in the raised position, the covering 906 is wound about the roller tube 904 .
- the example architectural opening covering assembly 900 is provided with a powered motor to move the covering 906 between the raised and lowered positions.
- the powered motor is controlled by a local controller, a local controller in communication with a central controller, and/or only a central controller.
- the motor and the local controller are disposed inside the tube 904 .
- the example assembly 900 of FIG. 9 further includes a manual controller 920 that may be used to manually override commands provided by the central controller and/or the local controller, and/or may be used to move the covering 906 between the raised and lowered positions.
- FIG. 10 illustrates the roller tube 904 of the assembly 900 coupled to the manual controller 920 .
- the manual controller 920 includes a cord 1000 .
- the cord 1000 may be a chain, a beaded chain, a rotatable rod, a crank, a lever, and/or any other suitable device.
- the manual controller 920 rotates the tube 904 , thereby enabling a user to selectively raise or lower the covering 906 via the manual controller 920 .
- FIG. 11 is a perspective view of the example manual controller 920 of FIG. 9 with the tube 904 removed.
- the headrail 908 is also removed.
- the example manual controller 920 is coupled to one of the mounts 915 .
- the manual controller 920 includes a male connector 1100 , which includes a plate 1102 and a shaft 1104 extending from the plate 1102 .
- the example shaft of FIG. 11 includes plurality of splines 1106 . As described in greater detail below, the shaft 1104 of the male connector 1100 is coupled to a clutch assembly disposed inside the tube 904 .
- FIG. 12 is a side view of the example male connector 1100 of FIG. 11 .
- the example male connector 1100 includes a first arm 1200 and a second arm 1202 , each of which extends from the plate 1102 into the manual controller 920 .
- the example manual controller 920 of FIG. 11 restricts movement of the male connector 1100 unless the cord 1000 is moving.
- FIG. 13 is an exploded view of the example manual controller 920 of FIG. 11 .
- the manual controller 920 includes a housing 1300 defining an annular ridge 1302 , which includes a plurality of grooves 1304 .
- a ring 1306 defining a plurality of splines 1308 is disposed in the space defined by the annular ridge 1302 .
- the grooves 1304 of the ridge 1302 receive the splines 1308 of the ring 1306 to substantially prevent rotation of the ring 1306 during operation of the manual controller 920 .
- a wrap spring 1310 is disposed adjacent an interior surface 512 of the ring 1306 and oriented substantially concentric to the ring 1306 .
- the wrap spring 1310 is tensioned such that an outer surface 514 of the wrap spring 1310 engages the interior surface 512 of the ring 1306 .
- the wrap spring 1310 includes a first tang 1316 and a second tang 1318 .
- the housing 1300 defines a shaft 1320 to receive a bearing 1322 about which the wrap spring 1310 , a sprocket 1324 and the male connector 1100 are supported.
- the example sprocket 1324 of FIG. 13 is operatively coupled to the cord 1000 .
- the example sprocket 1324 includes a first wing or arm 1326 and a second wing or arm 1328 , each of which extends toward the housing 1300 in the orientation of FIG. 13 .
- the arms 1200 , 1202 (illustrated in FIG. 12 ) of the male connector 1100 and the arms 1326 , 1328 of the sprocket 1324 are disposed adjacent the tangs 1316 , 1318 of the warp spring 1310 .
- a fitting 1329 e.g., a plug
- a spring-loaded fastener 1330 couples the housing 1300 to one of the mounts 915 .
- a first cord guide plate 1332 and a second cord guide plate 1334 are coupled to the example housing 1300 via a cover 1336 to define a first channel 1338 and a second channel 1340 .
- a first portion of the cord 1000 is disposed in the first channel 1338
- a second portion of the cord 1000 is disposed in the second channel 1340 .
- the example first and second channels 1338 , 1340 define first and second paths, respectively, for the cord 1000 to prevent the cord 1000 from disengaging the sprocket 1324 during operation (e.g., when a user pulls the cord 1000 ).
- a pair of mechanical fasteners 1342 , 1344 couple the cover 1336 , the first cord guide plate 1332 , and the second cord guide plate 1334 to the housing 1300 .
- the cord 1000 applies torque to the sprocket 1324 .
- one of the arms 1326 , 1328 of the sprocket 1324 engages one the tangs 1316 , 1318 of the wrap spring 1310 , thereby causing the wrap spring 1310 to tighten.
- the wrap spring 1310 tightens, a diameter of the wrap spring 1310 decreases, and the wrap spring 1310 disengages the inner surface 512 of the ring 1306 .
- the wrap spring 1310 and, thus, the sprocket 1324 may be rotated by actuating the cord 1000 .
- the wrap spring 1310 rotates, one of the tangs 1316 , 1318 engages one of the arms 1200 , 1202 of the male connector 1100 , thereby rotating the male connector 1100 .
- the male connector 1100 is operatively coupled to the roller tube 904 .
- the user may selectively raise or lower the example covering 906 by actuating the cord 1000 .
- FIG. 14 is perspective view of an example clutch assembly 1400 and an example motor 1402 of the example architectural opening covering assembly 900 of FIG. 9 .
- the example clutch assembly 1400 of FIG. 14 and the example motor 1402 are disposed inside the roller tube 904 .
- the example clutch assembly 1400 includes a frame or housing 1404 .
- the frame 1404 is substantially cylindrical and defines one or more grooves or channels 1406 , 1408 to receive one or more ridges or protrusions 1500 , 1502 ( FIG. 15 ) of the tube 904 .
- the example clutch assembly 1400 is operatively coupled to the example manual controller 920 of FIG. 11 via a female connector or coupling 1410 , which receives the male connector 1100 of the manual controller 920 .
- the female connector 1410 includes ridges or splines 1418 to engage the splines 1106 of the male connector 1100 .
- the male connector 1100 of the manual controller 920 holds the female connector 1410 of the example clutch assembly 1400 substantially stationary to cause the motor 1402 to rotate with the frame 1404 .
- FIG. 15 is a perspective view of the example tube 904 of the example architectural opening covering assembly 900 of FIG. 9 .
- the tube 904 defines a first ridge or protrusion 1500 and a second ridge or protrusion 1502 .
- the first and second protrusions 1500 , 1502 extend radially and inwardly (e.g., toward an axis of rotation of the tube 904 ).
- the protrusions 1500 , 1502 of the tube 904 are disposed in the slots 1406 , 1408 of the frame 1404 .
- the motor 1402 and/or the manual controller 920 applies torque to the frame 1404 of the clutch assembly 1400 .
- the torque applied to the frame 1404 is transferred to the protrusions 1500 , 1502 of the tube 904 via the slots 1406 , 1408 of the frame 1404 , thereby causing the tube 904 to rotate with the frame 1404 .
- FIGS. 16-18 are cross-sectional views of the example clutch assembly 1400 and the example motor 1402 of FIG. 14 .
- the example clutch assembly 1400 includes a first clutch 1600 and a second clutch 1602 .
- the example first clutch 1600 of FIG. 16 includes the female connector 1410 and a drive shaft 1604 .
- the example female connector 1410 is operatively coupled to a first end 806 of the drive shaft 1604 .
- the example drive shaft 1604 of FIG. 16 includes a collar 1607 .
- FIG. 17 is a cross-sectional view taken along line 17 A- 17 A of FIG. 16 .
- the first clutch 1600 provides a dead band (i.e., a lost motion path) between the female connector 1410 and the drive shaft 1604 .
- the example female connector 1410 includes a first spline or tooth 1700 and a second spline or tooth 1702 .
- the first and second teeth 1700 , 1702 are disposed approximately 180 degrees apart (e.g., the first and second teeth 1700 , 1702 are disposed along a diameter of the female connector 1410 ) along a circumferential surface of the female connector 1410 adjacent and radial to the first end 806 of the drive shaft 1604 .
- the collar 1607 of the example drive shaft 1604 is adjacent the teeth 1700 , 1702 of the female connector 1410 , and first and second teeth 1704 , 1706 extend from the first collar 1607 substantially parallel to a longitudinal axis of the drive shaft 1604 .
- the first and second teeth 1704 , 1706 are about 180 degrees apart (e.g., along a diameter of the first collar 1607 ).
- the tooth 1702 separates from the tooth 1706 , and the motor 1402 drives the drive shaft 1604 through at least a portion of the dead band.
- the drive shaft 1604 rotates relative to the female connector 1410 , and the tube 904 stops rotating.
- the termination of rotation of the tube 904 is detected to identify the fully unwound position.
- a portion of the example drive shaft 1604 is supported by a bearing 1608 (e.g., a dry bearing).
- the bearing 1608 is defined by the frame 1404 .
- a second end 1610 of the drive shaft 1604 is coupled to a coupling 1612 of the second clutch 1602 (e.g., a holding clutch).
- the first clutch 1600 operatively couples the manual controller 920 to the second clutch 1602 .
- the manual controller 920 and/or the first clutch 1600 includes a gearbox (e.g., a planetary gearbox) to increase a torque output of the manual controller 920 .
- the coupling 1612 includes a first bore 1614 and a second bore 1616 opposite the first bore 1614 .
- the example first bore 1614 receives the second end 1610 of the drive shaft 1604 .
- the example second bore 1616 receives a motor drive shaft 1618 and a core 1620 of the frame 1404 .
- the core 1620 of the frame 1404 includes a brake shaft 1622 extending from a frame collar 1624 .
- the motor drive shaft 1618 of the illustrated example includes a center or core shaft 1626 and an outer shaft 1628 concentric to the center shaft 1626 .
- FIG. 18 is a cross-sectional view of the clutch assembly 1400 taken along line 18 A- 18 A.
- the second bore 1616 of the coupling 1612 includes a pair of inwardly extending splines or ridges 1800 , 1802 (e.g., parallel key splines).
- the example outer shaft 1628 includes opposing slits or clefts 1804 , 1806 , which receive the splines 1800 , 1802 of the coupling 1612 .
- the brake shaft 1622 is disposed around the center shaft 1626 in a space defined between the center shaft 1626 and the outer shaft 1628 .
- the frame collar 1624 of the core 1620 is coupled to the frame 1404 .
- the frame 1404 and the core 1620 are integrally formed.
- the example second clutch 1602 includes one or more wrap springs 1808 disposed around the example brake shaft 1622 .
- each of the wrap springs 1808 includes four coils. However, wrap springs including other numbers of coils are used in other examples.
- Each example wrap spring 1808 includes a first tang or arm 1810 on a first end of the spring 1808 and a second tang or arm 1812 on a second end of the spring 1808 .
- the wrap springs 1808 are oriented such that the first tang 1810 of each of the wrap springs 1808 is disposed in the slit 1804 of the outer shaft 1628 adjacent one of the splines 1800 , 1802 of the coupling 1612 , and the second tang 1812 is disposed in the slit 1806 adjacent the other the one of the splines 1800 , 1802 .
- the outer shaft 1628 engages one of the tangs 1810 , 1812 of the wrap springs 1808
- the coupling 1612 rotates during operation
- one of the splines 1800 , 1802 of the coupling 1612 engage one of the tangs 1810 , 1812 of the wrap springs 1808
- the coupling 1612 engages one of the tangs 1810 , 1812
- the corresponding coil(s) of the springs 1808 tighten around the brake shaft 1622 to resist relative movement between the frame 1404 and the second clutch 1602
- the outer shaft 1628 of the motor drive shaft 1618 engages one of the tangs 1810 , 1812
- the coils loosen around the brake shaft 1622 to release resistance to relative movement between the second clutch 1602 and the frame 1404 .
- the center shaft 1626 of the example motor drive shaft 1618 is coupled to an output shaft 1630 of the motor 1402 via a coupling 1632 .
- the coupling 1632 includes a plurality of noise and/or vibration insulators 1634 , 1636 such as, for example, one or more rubber grommets.
- the motor 1402 is an electric motor (e.g., a 12 - 24 V DC motor) and includes a gearbox or a transmission.
- the example motor 1402 is able to operate at speeds up to about 6000 rpm and the gearbox provides approximately a 130 : 1 ratio between the speed of the motor 1402 and a speed of a motor output shaft 1630 .
- the motor 1402 and the gearbox are disposed inside a housing 1638 , which is coupled to the frame 1404 via one or more mechanical fasteners 1640 and sound or vibration insulators 1642 , 1644 such as, for example, one or more rubber grommets.
- the motor 1402 , the manual controller 920 , or both may rotate the tube 904 and, thus, wind and/or unwind the covering 906 (i.e., lower or raise the covering 906 , respectively).
- the motor 1402 drives the motor drive shaft 1618
- the outer shaft 1628 of the motor drive shaft 1618 engages one of the tangs 1810 , 1812 on each of the wrap springs 1808 , thereby loosening the wrap springs 1808 around the brake shaft 1622 .
- the male connector 1100 of the manual controller 920 prevents the motor drive shaft 1618 from rotating the second clutch 1602 .
- motor drive shaft 1618 is held substantially stationary, which causes the motor 1402 to rotate about the motor output shaft 1630 .
- the motor 1402 rotates the frame 1404 and, thus, the tube 904 .
- the male connector 1100 rotates, thereby causing the female connector 1410 , the drive shaft 1604 , the coupling 1612 , and the motor drive shaft 1618 to rotate.
- the coupling 1612 engages one of the tangs 1810 , 1812 of each of the wrap springs 1808 to cause the wrap springs 1808 to tighten around the brake shaft 1622 and, thus, transfers the torque applied from the manual controller 920 to the frame 1404 to cause the roller tube 904 to rotate.
- the wrap springs 1808 include tangs 1810 , 1812 on both sides of the one of the splines 1800 , 1802 of the coupling 1612 .
- rotation of the coupling 1612 in the winding direction and the unwinding direction causes the wrap springs 1808 to tighten around the brake shaft 1626 .
- the covering 906 may be selectively raised or lowered by a user via the manual controller 920 (e.g., without electrical power supplied to the motor 1402 ).
- Movement of the motor 1402 and, thus, the tube 904 is additive to movement of the motor drive shaft 1618 .
- the manual controller 920 causes the motor drive shaft 1618 to rotate at a velocity of 20 revolutions per minute in a first direction, and the motor 1402 is driven to rotate about the output shaft 1630 at a velocity of 25 revolutions per minute in a second direction opposite the first direction, then the tube 904 rotates in the second direction at a velocity of 5 revolutions per minute.
- the manual controller 920 causes the motor drive shaft 1618 to rotate at a velocity of 20 revolutions per minute in the first direction, and the motor 1402 is driven to rotate about the output shaft 1630 at a velocity of 25 revolutions per minute in the first direction, the tube 904 rotates in the first direction at a velocity of 45 revolutions per minute.
- the manual controller 920 and the motor 1402 may cooperate or compete to assist or prevent movement of the tube 904 via the manual controller 920 .
- the motor 1402 drives the drive shaft 1604 through the dead band of the first clutch 1600 .
- the motor 1402 applies a first torque to the tube 904 in a first direction (e.g., counterclockwise) and a weight of the covering 906 applies a second torque to the tube 904 greater than the first torque in a second direction opposite the first direction (e.g., clockwise).
- the teeth 1704 , 1706 of the drive shaft 1604 engage the teeth 1700 , 1702 of the female connector 1410 , and the motor 1402 allows the weight of the covering 906 to cause the tube 904 and the motor 1402 to rotate together to unwind the covering 906 . If the tube 904 unwinds past the fully unwound position (i.e., where the covering 906 fully unwinds from the tube 904 ), the weight of the covering 906 applies torque to the tube 904 in the first direction.
- the motor 1402 drives the teeth 1704 , 1706 of the drive shaft 1604 out of engagement with the teeth 1700 , 1702 of the female connector 1410 for a portion of a revolution (e.g., 160 degrees), but the tube 904 remains substantially stationary while the motor 1402 is operating.
- the disengagement may be detected (e.g., by detecting that the motor 1402 is operating but the tube 902 is not rotating) to determine a fully unwound position of the covering 906 .
- FIG. 19 is a perspective view of an example local controller 1900 .
- the example local controller 1900 is disposed inside of and coupled to the roller tube 904 .
- the local controller 1900 includes a housing 1902 .
- a first portion 1104 of the example housing 1902 is coupled to the tube 904
- a second portion 1106 of the housing 1902 is journalled to a second bracket 1908 via a slip ring or rotary electronic joint 1910 .
- the second bracket 1908 is mounted to a wall or an architectural opening frame.
- the housing 1902 rotates with the tube 904 about an axis of rotation of the tube 904 .
- FIG. 20 is a cross-sectional view of the example second bracket 1908 and the second portion 1106 of the example housing 1600 .
- the slip ring 1910 includes two electrical contacts 2000 , 2002 .
- a central controller and/or a power source may be coupled to the electrical contacts 2000 , 2002 via wires.
- FIG. 21 is another cross-sectional view of the example housing 1902 and the example bracket 1908 .
- the second portion 1106 of the housing 1902 is slidably coupled to the first portion 1104 of the housing 1902 .
- a plunger 2100 is disposed inside the second portion 1106 of the housing 1902 and a spring 2102 seated between the first portion 1104 of the housing 1902 and the plunger 2100 biases the circuit board 2012 toward the second bracket 1908 to urge the pins 2014 , 2016 and 2018 into engagement with the electrical contacts 2000 , 2002 .
- a control board 2104 is disposed inside the first portion 1104 of the housing 1902 .
- the example local controller 1900 is coupled to the motor 1402 and may be communicatively coupled to a central controller, a wired or wireless remote control, or any other device for instructing the local controller.
- the local controller 1900 transmits signals to the motor 1402 to cause the motor 1402 to rotate the tube 904 , allow the tube 904 to rotate, and/or hold the tube 904 substantially stationary.
- FIG. 22 is a block diagram of an example processor platform 2200 capable of executing the instructions of FIGS. 3-6 to implement a controller of, for example, the controller board 120 of FIG. 1 , the local controller 1900 of FIG. 19 , and/or any other controller.
- the processor platform 2200 can be, for example, a server, a personal computer, or any other suitable type of computing device.
- the processor platform 2200 of the instant example includes a processor 2212 .
- the processor 2212 can be implemented by one or more microprocessors or controllers from any desired family or manufacturer.
- the processor 2212 includes a local memory 2213 (e.g., a cache) and is in communication with a main memory including a volatile memory 2214 and a non-volatile memory 2216 via a bus 2218 .
- the volatile memory 2214 may be implemented by Synchronous Dynamic Random Access Memory (SDRAM), Dynamic Random Access Memory (DRAM), RAMBUS Dynamic Random Access Memory (RDRAM) and/or any other type of random access memory device.
- the non-volatile memory 2216 may be implemented by flash memory and/or any other desired type of memory device. Access to the main memory 2214 , 2216 is controlled by a memory controller.
- the processor platform 2200 also includes an interface circuit 2220 .
- the interface circuit 2220 may be implemented by any type of interface standard, such as an Ethernet interface, a universal serial bus (USB), and/or a PCI express interface.
- One or more input devices 2222 are connected to the interface circuit 2220 .
- the input device(s) 2222 permit a user to enter data and commands into the processor 2212 .
- the input device(s) can be implemented by, for example, a keyboard, a mouse, a touchscreen, a track-pad, a trackball, isopoint, a button, a switch, and/or a voice recognition system.
- One or more output devices 2224 are also connected to the interface circuit 2220 .
- the output devices 2224 can be implemented, for example, by display devices (e.g., a liquid crystal display, speakers, etc.).
- the processor platform 2200 also includes one or more mass storage devices 2228 (e.g., flash memory drive) for storing software and data.
- the mass storage device 2228 may implement the local storage device 2213 .
- the coded instructions 2232 of FIGS. 3-6 may be stored in the mass storage device 2228 , in the volatile memory 2214 , in the non-volatile memory 2216 , and/or on a removable storage medium such as a flash memory drive.
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Operating, Guiding And Securing Of Roll- Type Closing Members (AREA)
- General Engineering & Computer Science (AREA)
- Power-Operated Mechanisms For Wings (AREA)
- Mechanical Engineering (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
- Conveying And Assembling Of Building Elements In Situ (AREA)
- Building Awnings And Sunshades (AREA)
- Spray Control Apparatus (AREA)
- Coating Apparatus (AREA)
Abstract
Description
- This patent is a continuation of U.S. patent application Ser. No. 15,133,050, entitled “CONTROL OF ARCHITECTURAL OPENING COVERINGS,” filed on Apr. 19, 2016, which is a continuation of U.S. patent application Ser. No. 14/349,628, entitled “CONTROL OF ARCHITECTURAL OPENING COVERINGS,” filed on Oct. 3, 2014, which is a § 371 national stage of PCT Application No. PCT/US2012/000429, filed Oct. 3, 2012, entitled “CONTROL OF ARCHITECTURAL OPENING COVERINGS,” which claims the benefit of U.S. Provisional Application Ser. No. 61/542,760, entitled “CONTROL OF ARCHITECTURAL OPENING COVERINGS,” filed Oct. 3, 2011 and claims the benefit of U.S. Provisional Application Ser. No. 61/648,011, entitled “METHODS AND APPARATUS TO CONTROL ARCHITECTURAL OPENING COVERING ASSEMBLIES,” filed May 16, 2012. The disclosures of U.S. patent application Ser. No. 15,133,050, U.S. patent application Ser. No. 14/349,628, PCT Application No. PCT/US2012/000429, U.S. Provisional Application Ser. No. 61/542,760 and U.S. Provisional Application Ser. No. 61/648,011 are hereby incorporated herein by reference in their entireties.
- This disclosure relates generally to architectural opening covering assemblies and, more particularly, to methods and apparatus to control architectural opening covering assemblies.
- Architectural opening coverings such as roller blinds provide shading and privacy. Such coverings typically include a manually operated cord, chain or pull tube or a motorized roller tube connected to covering fabric, which may be slatted or louvered. The fabric can be fitted with a bottom rail and optionally run through a pair of opposing vertical frame or track members, one for each side edge of the fabric, so that the fabric raises and falls in a designated path and is not subjected to motion from, for example, blowing wind.
- Example implementations of architectural opening coverings will be described through the use of the accompanying drawings, which are not to be considered as limiting, and in which:
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FIG. 1 illustrates an example implementation of a roller type architectural opening covering with a manual control; and -
FIG. 2 illustrates an example implementation of a roller type architectural opening covering with a one-way slip clutch to provide a torque limiting motor coupling. -
FIGS. 3-6 are flowcharts illustrating example methods to control operation of a roller type architectural opening covering. -
FIG. 7 illustrates a torque limiting motor configuration. -
FIG. 8 illustrates a torque limiting motor coupling. -
FIG. 9 is an isometric illustration of an example architectural opening covering assembly including an example manual controller. -
FIG. 10 is an enlarged view illustrating the manual controller of the example architectural opening covering assembly ofFIG. 9 . -
FIG. 11 is a perspective view of the example manual controller of the example architectural opening covering assembly ofFIG. 9 . -
FIG. 12 is a side view of an example male connector of the example manual controller ofFIG. 11 . -
FIG. 13 is an exploded view of the example manual controller ofFIG. 11 . -
FIG. 14 is a perspective view of an example clutch assembly and motor of the example architectural opening covering assembly ofFIG. 9 . -
FIG. 15 is a perspective view of an example roller tube of the example architectural opening covering assembly ofFIG. 9 . -
FIG. 16 is a cross-sectional view of the example clutch assembly and the example motor ofFIG. 14 . -
FIG. 17 is a cross-sectional view of an example first clutch of the example clutch assembly ofFIG. 16 taken alongline 17A-17A. -
FIG. 18 is a cross-sectional view of an example second clutch of the example clutch assembly ofFIG. 16 taken alongline 18A-18A. -
FIG. 19 is a perspective view of an example local controller of the example architectural opening covering assembly ofFIG. 9 . -
FIG. 20 is a cross-sectional view of a portion of the example local controller ofFIG. 19 communicatively coupled to an example central controller and an example power source. -
FIG. 21 is another cross-sectional view of the example local controller ofFIG. 19 . -
FIG. 22 is a block diagram of an example processor platform to execute the machine readable instructions ofFIGS. 3-6 to implement a controller of the control board ofFIG. 1 , the control board ofFIG. 19 , or any other controller. - To lower a roller type architectural opening covering such as a blind with a weighted rail a manual control is provided. In some examples, the architectural opening covering with the manual control may also be motorized. In some implementations that include a motor, the manual control does not cause the covering to be about of synchronization with any components for limiting the travel of the covering (e.g., mechanical or electronic limit switches). Accordingly, in such implementations, operation of the manual control does not necessitate recalibration or resetting of the components for limiting the travel of the covering.
- The components of the architectural opening covering will be referenced in polar coordinates. For example, the axial coordinate runs along the longitudinal axis of the covering, the radial coordinate runs perpendicularly thereto and the circumferential coordinate runs in a circular direction in an end view of the covering. With the covering in a plan view, “axial proximate” or “proximate” means closer to the right side of the figure. On the other hand, “axial distal” or “distal” means further from the right side of the figure.
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FIG. 1 illustrates an example covering 100 that includes ashaft connector 102 and amanual control 104. Theshaft connector 102 may be a one-way slipping bearing as described inFIGS. 7 and 8 . As will be explained in further detail, themanual control 104 enables manual operation of the covering 100 by a person (e.g., when motorized control is not available or desirable to the person). - The roller blind 100 of the illustrated example includes the one-way slipping bearing 102, the
manual control 104, themotor 106, agearbox 108, acontrol board 110, aroller tube 112, a slip-ring connector 114, and a clutch/mount 116. In the illustrated example, themotor 106 and themanual control 104 are located nearest the proximate side of thecovering 100. Alternatively, components of thecovering 100 could be reversed so that themotor 106 and themanual control 104 are located nearest the distal side of thecovering 100. - The slip-
ring connector 114 of the illustrated example is insertable in amating connector 118 for mounting the covering 100 in or adjacent to an architectural opening and for electrically connecting the covering 100 to electrical power. The example slip-ring connector 114 includes aframe 120 having first andsecond edges opening 123 into which an axially extendingprotrusion 115 of the slip-ring connector 114 is inserted when thecovering 100 is mounted in or adjacent to the architectural opening. An outerradial surface 127 of theframe 114 receives an inner radial surface of abracket 134 of the slip-ring connector 114. - Disposed inside
frame 120 arefirst contacts second contact 126. Thefirst contacts first contacts wires 130 that supply electrical power to themating connector 118. When thecovering 100 is mounted in themating connector 118, thefirst contacts radial ring 136 of the axially extendingprotrusion 115. When the covering 100 rotates, thefirst contacts radial ring 136. Accordingly, the covering can rotate with respect to themating connector 118 while an electrical connection is maintained. While twofirst contacts - The
second contact 126 of the illustrated example comprises a metal flange upon which rests apin 138 that extends beyond a distal end of theaxially extending protrusion 115. Thesecond contact 126 is electrically connected to thesupply wires 130. While the covering 100 rotates, thesecond contact 126 maintains the electrical connection with thepin 138 to provide electrical power to thecovering 100. - The
example frame 120 ofFIG. 1 is fixed to abracket 128 that is fixed in or adjacent to an architectural opening using a mechanical fastener such as ascrew 132. In the illustrated example, thesupply wires 130 pass through openings (not illustrated) in thebracket 128 and theframe 130. - While an
example mating connector 118 is disclosed herein, other arrangements may be used. For example, other configurations of slip-ring connectors may be used. - Returning to the example covering 100, the
bracket 134 is disposed inside of, and is fixed to, theroller tube 112. Thepin 138 is disposed in a sleeve formed inside the connector. Awasher 142 is mounted to thepin 138. Aspring 140 is seated between the fixedwasher 142 and an inner surface of thebracket 134. The force of thespring 140 biases thepin 138 in the distal direction and into engagement with thesecond contact 126 when the covering 100 is inserted in themating connector 118. -
Wires 143 electrically connect thepin 138 and theradial ring 136, respectively, to thecontrol board 110. Accordingly, electrical power is supplied to thecontrol board 110 when the covering 100 is mounted in themating bracket 118 and electrical power is supplied to thesupply wires 130. In other examples, batteries may provide power to thecontrol board 110 and the corresponding wired electrical elements may be eliminated. In such examples, the slip-ring connector 114 may not include components for electrical connection, but will provide mounting support for theroller blind 100. - The
control board 110 of the illustrated example controls the operation of thecovering 100. In particular, theexample control board 110 includes a wireless receiver and a torque sensing control. The wireless receiver is responsive to commands from a wireless remote control to direct the operation of thecovering 100. The torque sensing control operates to stop themotor 106 whenever a torque overload is detected (e.g., when the covering 100 is fully wound, when the covering 100 is fully unwound, or when an obstruction prevents winding/unwinding of the covering 100). The example torque sensing control of the illustrated example includes a winding threshold and an unwinding threshold such that the winding threshold is greater than the unwinding threshold due to the additional torque encountered when winding thecovering 100. Alternatively, a single threshold may be used. Thecontrol board 110 may include additional circuitry or electronics for the covering 100 such as, for example, a motor controller. - Other methods for stopping the
motor 106 may be used such as, for example, a mechanical or electrical limiter switch/control (e.g., limiter switches/controls disclosed herein) may be used. Alternatively, a one-way slipping bearing may be used as described inFIG. 2 . In some such examples, no torque sensing control or limiter switches/controls will be used. In some such examples, thecontrol board 110 includes a timer control to stop themotor 106 after an amount of time sufficient to fully wind or fully unwind theroller blind 100. - The
control board 110 of the illustrated example is electrically connected to themotor 106 viawires 145. Themotor 106 of the illustrated example is an electric motor having an output shaft. The output shaft of themotor 106 is disposed on the proximate side while the radial body (e.g., shell or casing) of themotor 106 is disposed on the distal side of themotor 106. However, this orientation may be reversed. The radial body of themotor 106 as illustrated inFIG. 1 is fixedly attached to a radial casing of thegearbox 108 while the output shaft of themotor 106 is connected to the internal components of thegearbox 108. The radial casing of thegearbox 108 is fixedly attached to aradial frame 147 using mechanical fixtures such asscrews radial frame 147 is fixed to the interior radial surface of theroller tube 112. - The
gearbox 108 of the illustrated example includes anoutput shaft 152 that is driven by the output shaft of themotor 106 via the gears of thegearbox 108. The gears of the gearbox provide the appropriate revolution ratio between the shaft of themotor 106 and theshaft 152 is attached to theshaft coupling 102, which is attached to an output of the clutch/mount 116. The clutch/mount 116 is coupled with themanual control 104. - The example clutch/
mount 116 ofFIG. 1 includeshooks openings 156, 158 of abracket 154. Thehooks bracket 154 via theopenings 156, 158. Thebracket 154 of the illustrated example is secured in or adjacent to an architectural opening using a mechanical fixture such as ascrew 160. The hook and bracket mounting is provided by way of example and other systems for mounting theroller blind 100 may be used. - When the
motor 106 of the illustrated example is operated and themanual control 104 is not operated, the clutch/mount 116 holds theshaft coupling 102, theoutput shaft 152 of thegearbox 108, and, thereby, the output shaft of themotor 106 stationary with respect to thebracket 154. Accordingly, the radial body of themotor 106 rotates with respect to thebracket 154 when themotor 106 is operated. The rotation of the radial body of themotor 106 causes thegearbox 108, theframe 147, and theroller tube 112 to rotate. Accordingly, theroller tube 112 will wind or unwind the covering material when themotor 106 is operated. - When the
manual control 104 of the illustrated example is operated and themotor 106 is not operated, the output shaft of themotor 106 is prevented from rotating by a brake included in themotor 106. Alternatively, thegearbox 108 may include a brake or other components may be provided to prevent the output shaft of themotor 106 from rotating with respect to the radial body of themotor 106. The operation of the manual control 104 (e.g., by pulling a continuous cord loop) causes the clutch/mount 116 to impart rotation on theshaft coupling 102. The rotation of theshaft coupling 102 causes theoutput shaft 152 of thegearbox 108 to rotate. Because the output shaft of themotor 106 is fixed with respect to the radial body of themotor 106, the rotation of theoutput shaft 152 of thegearbox 108 causes the radial casing of thegearbox 108 and the radial body of themotor 106 to rotate. The rotation of the radial body of themotor 106 causes theframe 147 and theroller tube 112 to rotate. Accordingly, theroller tube 112 will wind or unwind the covering material when themanual control 210 is operated. - When the
manual control 104 and themotor 106 are operated simultaneously, their operation is additive. When both themanual control 104 and themotor 106 are operated to wind theroller blind 100, theroller blind 100 is wound at an increased rate. When both themanual control 104 and themotor 106 are operated to unwind theroller blind 100, theroller blind 100 is unwound at an increased rate. When themanual control 104 and themotor 106 are operated in opposite directions, theroller blind 100 is more slowly wound or unwound depending on the relative movement of themanual control 104 and themotor 106. - Because the example motor uses torque detection to determine when the winding or unwinding limits have been reached, operation of the
manual control 104 does not interfere with the motorized control of theroller blind 100. In other words, according to the illustrated example, calibration or resetting of limit positions is not necessary after operation of themanual control 104. In implementations where mechanical or electronic limiter switches are used in place of the torque detection, the limiter switches may not need to be calibrated or reset after operation of themanual control 104 where the operation of the operation of themanual control 104 is detected by the limiter switches. For example, when a screw (e.g., the screw of a mechanical limiter switch system is advanced when themanual control 104 is operated, the limiter switch system will not need to be calibrated after operation by themanual control 104. - In the illustrated example of
FIG. 1 , the body of themotor 106 rotates while the output shaft of themotor 106 is stationary. The body of themotor 106 of the illustrated example includes winding coils (typically called the stator) while the output shaft includes a rod and magnet(s) (typically known as the rotor). Other types of motors may be used. -
FIG. 2 illustrates an example covering 200 that includes aroller tube 201 containing agrooved hub 202, a one-way slip clutch 204, agearbox 206, and amotor 208. As will be explained in further detail, the one-way slip clutch 204 is a torque limiting motor coupling that enables the covering 200 to be operated without the need for electronic or mechanical limiter switches. The covering 200 can be mounted with amanual control 210 that allows for manual winding or unwinding of covering material (not illustrated) attached to theroller tube 201. Alternatively, the covering 200 is mounted with astationary connector 212. - The
grooved hub 202 includes grooves to receive splines of aradial protrusion 214 of themanual control 210 or splines of a radial protrusion 216 of thestationary connector 212. A distal side of thegrooved hub 202 is fixed to the rotation of the one-way slip clutch 204 by a tang. Accordingly, rotation of thegrooved hub 202 applies rotational torque to the one-way slip clutch 204. - The one-way slip clutch 204 of the illustrated example includes an adapter shaft to receive a
drive shaft 218 of thegearbox 206. The adapter shaft is similar to theadapter shaft 90 described in conjunction withFIG. 5 . A proximate end of the casing of thegearbox 206 is fixed to aframe 220 that is fixed to an interior surface of theroller tube 201. Accordingly, when the casing of thegearbox 206 is rotated, theframe 220 causes rotation of theroller tube 201. - A distal end of the casing of the gearbox is fixed to a casing of the
motor 208. The gearbox of the illustrated example includes an adapter shaft to receive a drive shaft of themotor 208. The drive shaft ofmotor 208 rotatably drives gears of thegearbox 206 to, in turn, rotatably drive thedrive shaft 218 of thegearbox 206. - The one-
way slip clutch 204 prevents torque from being applied to theroller tube 201 of the illustrated example in the unwinding direction. Additionally, the one-way slip clutch 204 prevents torque exceeding a threshold from being applied to theroller tube 201 in the winding direction. - The covering 200 includes
wires 208 having a proximate end fixed to a distal end of themotor 208. A distal end of thewires 208 are fixed to a slip-ring connector 222. The slip-ring connector 222 of the illustrated example includes afirst contact 224 and asecond contact 226. The slip-ring connector 222 receives anadapter 228 having apost 230 that includes a firstconductive ring 232 and a secondconductive ring 234. Theadapter 228 includeswires 236 including one or more plug(s) 238. The adapter 228 (e.g., a conical cover, an end cap, a plug, etc.) can be releasably mounted in acavity 242 formed by afirst edge 244 and asecond edge 246 of abracket 240. Thebracket 240 can be secured in and or adjacent to an architectural opening.Supply wires 248 are connected to an electrical supply (e.g., a source of commercial power) and include one or more receptacle(s) 250 to receive the one or more plug(s) 238. Thesupply wires 248,wires 236, andwires 221 may be replaced by a combination of wires and one or more batteries to provide electrical power to theroller blind 200. - When the
roller tube 201 is rotated, the slip-ring connector 222 including thefirst contact 224 and thesecond contact 226 is rotated. Thefirst contact 224 and thesecond contact 226 are deformable to allow thefirst contact 224 to remain in contact with the firstconductive ring 232 and thesecond contact 226 to remain in contact with the secondconductive ring 234. Theadapter 228 remains stationary in thebracket 240 when theroller tube 201 is rotated. Any other type of slip-ring or other type of connection may alternatively be used. - The
manual control 210 and thestationary connector 212 of the illustrated example includehooks cavities bracket 256 to mount themanual control 210 and/or thestationary connector 212 in and/or adjacent to an architectural opening to which thebracket 256 is secured. - The
manual control 210 of the illustrated example includes abeaded chain 262 to drive apulley 264. Thepulley 264 is attached to theradial protrusion 214 via a clutch. The clutch prevents the radial protrusion from rotating when thepulley 264 is not being rotated by thebeaded chain 262. Other types of manual controls may be used such as, for example, a rope and pulley, a worm gear control, etc. Any type of mechanical or electronic clutch may be used. - Turning to the operation of the covering 200, when the
motor 208 is operated and themanual control 210 is not operated, the clutch of themanual control 210 holds theradial protrusion 214, thegrooved hub 202, thedrive shaft 218 of thegearbox 206, and, thereby, the output shaft of themotor 208 stationary with respect to thebracket 256. Accordingly, the casing of themotor 208 rotates with respect to thebracket 256 when themotor 208 is operated. The rotation of the casing of themotor 208 causes the casing of thegearbox 206, theframe 220, and theroller tube 201 to rotate. Accordingly, theroller tube 201 will wind or unwind covering material when themotor 208 is operated. - When the
manual control 210 is operated and themotor 208 is not operated, the output shaft of themotor 208 is prevented from rotating by a brake included in themotor 208. Alternatively, thegearbox 206 may include a brake or other components may be provided to prevent the output shaft of themotor 208 from rotating with respect to the casing of themotor 208 when themanual control 210 is operated. The operation of the manual control 210 (e.g., by pulling the beaded chain 262) causes thepulley 264 to impart rotation on theradial protrusion 214. The rotation of theradial protrusion 214 causes thegrooved hub 202, thedrive shaft 218 of thegearbox 206, and the drive shaft of themotor 208 to rotate. Because the drive shaft of themotor 208 is fixed with respect to the casing of themotor 208, the rotation of thedrive shaft 218 of thegearbox 206 causes the casing of thegearbox 206 and the casing of themotor 208 to rotate. The rotation of the casing of thegearbox 206 causes theframe 220 and theroller tube 201 to rotate. Accordingly, theroller tube 201 will wind or unwind covering material when themanual control 210 is operated. - When the
manual control 210 and themotor 208 are operated simultaneously, their operation is additive. When both themanual control 210 and themotor 208 are operated to wind the covering 200, the material around theroller tube 201 is wound at an increased rate. When both themanual control 210 and themotor 208 are operated to unwind the covering 200, the material around theroller tube 201 is unwound at an increased rate. When themanual control 210 and themotor 208 are operated in opposite directions, the covering 200 is more slowly wound or unwound. - In the example of
FIG. 2 , the casing of themotor 208 rotates while the drive shaft of themotor 208 is stationary. The casing of themotor 208 of the illustrated example includes winding coils (typically called the stator) while the output shaft includes a rod and magnet(s) (typically known as the rotor). Other types of motors may be used. - Flowcharts representative of example machine readable instructions for implementing a controller of, for example, the
control board 120 ofFIG. 1 , thecontrol board 1900 ofFIG. 19 , or any other controller is shown inFIGS. 3-6 . In these examples, the machine readable instructions comprise a program for execution by a processing system such as theprocessing system 2200 discussed in connection withFIG. 22 . The program may be embodied in software stored on a tangible computer readable medium such as a CD-ROM, a floppy disk, a hard drive, a digital versatile disk (DVD), a Blu-ray disk, or a memory associated with theprocessor 2212, but the entire program and/or parts thereof could alternatively be executed by a device other than theprocessor 2212 and/or embodied in firmware or dedicated hardware. Further, although the example program is described with reference to the flowcharts illustrated inFIGS. 3-6 , many other methods of implementing a controller may alternatively be used. For example, the order of execution of the blocks may be changed, and/or some of the blocks described may be changed, eliminated, or combined. - As mentioned above, the example processes of
FIGS. 3-6 may be implemented using coded instructions (e.g., computer readable instructions) stored on a tangible computer readable medium such as a hard disk drive, a flash memory, a read-only memory (ROM), a compact disk (CD), a digital versatile disk (DVD), a cache, a random-access memory (RAM) and/or any other storage media in which information is stored for any duration (e.g., for extended time periods, permanently, brief instances, for temporarily buffering, and/or for caching of the information). As used herein, the term tangible computer readable medium is expressly defined to include any type of computer readable storage and to exclude propagating signals. Additionally or alternatively, the example processes ofFIGS. 3-6 may be implemented using coded instructions (e.g., computer readable instructions) stored on a non-transitory computer readable medium such as a hard disk drive, a flash memory, a read-only memory, a compact disk, a digital versatile disk, a cache, a random-access memory and/or any other storage media in which information is stored for any duration (e.g., for extended time periods, permanently, brief instances, for temporarily buffering, and/or for caching of the information). As used herein, the term non-transitory computer readable medium is expressly defined to include any type of computer readable medium and to exclude propagating signals. As used herein, when the phrase “at least” is used as the transition term in a preamble of a claim, it is open-ended in the same manner as the term “comprising” is open ended. Thus, a claim using “at least” as the transition term in its preamble may include elements in addition to those expressly recited in the claim. -
FIG. 3 is a flowchart illustrating example method to control operation of a roller type architectural opening covering. The example method ofFIG. 3 is described in conjunction with the covering 100 ofFIG. 1 . However, the example method may be used with any other covering (e.g., the covering 200 ofFIG. 2 ). - The example instructions of
FIG. 3 begin when thecontrol board 110 receives an instruction to wind the roller tube 112 (block 302). For example, thecontrol board 110 may receive an instruction from a wireless remote control via a wireless receiver included in thecontrol board 110, from a wired remote control, from a button on a control panel, etc. In response to the instruction, thecontrol board 110 operates themotor 106 in a winding direction (e.g., to raise covering material attached to the roller tube 112) (block 304). As previously described, the clutch/mount 116 prevents rotation of the output shaft of themotor 106. Accordingly, the radial body of themotor 106, the radial casing of thegearbox 108, theframe 147, and theroller tube 112 are rotated. Thecontrol board 110 determines if the torque on the motor exceeds a winding torque threshold (block 306). For example, when the covering 100 is wound to its upper-most limit, a bottom bar or weight attached to the covering material will reach a frame of the covering 100 and prevent rotation of theroller tube 100 around which the covering material is wrapped. This stoppage will cause the torque on the motor to increase beyond a threshold. The threshold can be selected so that normal winding (e.g., when no obstruction is present) does not exceed the torque threshold, but winding against a frame or obstruction will cause the threshold to be passed. - If the winding torque threshold has not been exceeded (block 306), the
motor 106 continues to operate until the threshold is exceeded. If the winding torque threshold has been exceeded (block 306), the motor is stopped (block 308). For example, when the covering 100 is fully wound or an obstruction preventing winding is encountered, themotor 100 will be stopped. The method ofFIG. 3 then ends until a new instruction is received at thecontrol board 110. - The example instructions of
FIG. 4 begin when thecontrol board 110 receives an instruction to unwind the roller tube 112 (block 402). In response to the instruction, thecontrol board 110 operates themotor 106 in an unwinding direction (e.g., to lower covering material attached to the roller tube 112) (block 404). As previously described, the clutch/mount 116 prevents rotation of the output shaft of themotor 106. Accordingly, the radial body of themotor 106, the radial casing of thegearbox 108, theframe 147, and theroller tube 112 are rotated. Thecontrol board 110 determines if the torque on the motor exceeds an unwinding torque threshold (block 406). For example, when the covering 100 is unwound to its lower-most limit, the covering material may begin to wind on the roller (e.g., raising the covering material). This winding will increase the torque on the motor (e.g., to levels similar to the levels found when operating the covering 100 in winding). Thus, the threshold can be selected so that normal unwinding does not exceed the torque threshold, but winding the covering material (e.g., after fully unwinding the covering material) will cause the threshold to be passed. According to the illustrated example, the winding threshold exceeds the unwinding threshold so that end-of-material winding can be detected. - If the unwinding torque threshold has not been exceeded (block 406), the
motor 106 continues to operate until the threshold is exceeded. If the unwinding torque threshold has been exceeded (block 406), the motor is stopped (block 408). For example, when the covering 100 is fully unwound and starts to wind, themotor 100 will be stopped. The method ofFIG. 4 then ends until a new instruction is received at thecontrol board 110. -
FIG. 5 is a flowchart illustrating example instructions to control operation of a roller type architectural opening covering. The example ofFIG. 5 is described in conjunction with the covering 200 ofFIG. 2 . However, the example method may be used with any other covering (e.g., the covering 100 ofFIG. 1 ). - The example of
FIG. 5 begins when a controller (e.g., a controller of thecontroller board 110 ofFIG. 1 receives an instruction to wind the roller tube 201 (block 502). For example, the controller may receive an instruction from a wireless remote control via a wireless receiver included in the controller, from a wired remote control, from a button on a control panel, etc. In response to the instruction, the controller starts a timer (block 504). For example, the timer may be set for a duration that is long enough for the covering 200 to be wound from its lower-most position to its upper-most position. The timer may additionally include an additional time to account for short delays in winding (e.g., a short amount of time during which the covering 200 is obstructed). Then, the controller operates themotor 208 in a winding direction (e.g., to raise covering material attached to the roller tube 201) (block 506). As previously described, a clutch of themanual control 210 or thestationary connector 212 prevents rotation of the drive shaft of themotor 208. Accordingly, the casing of themotor 208, the casing of thegearbox 206, theframe 220, and theroller tube 201 are rotated. - The controller then determines if the winding timer has expired (i.e., the winding time limit has been reached) (block 508). For example, the covering 200 may have been wound from its lower-most position to its upper-most position. Alternatively, the covering 200 may have been wound from an intermediate position to its upper-most position. In such an operation, the
motor 208 would continue to run when the covering 200 reaches its upper most position while the one-way slip clutch 204 slipped to prevent excessive torque from being applied to theroller tube 201 until the timer expired. In another instance, the covering 200 may encounter an obstruction that prevents fully winding the covering material. In such an operation, themotor 208 would continue to run while the one-way slip clutch 204 slipped to prevent excessive torque from being applied to theroller tube 201 until the timer expired. - If the winding timer has not expired (block 508), the
motor 208 continues to operate until the timer expires. If the winding timer has expired (block 508), the motor is stopped (block 510). The method ofFIG. 5 then ends until a new instruction is received at the controller. -
FIG. 6 is a flowchart illustrating example instructions to control operation of a roller type architectural opening covering. The example ofFIG. 6 is described in conjunction with the covering 200 ofFIG. 2 . However, the example method may be used with any other covering (e.g., the covering 100 ofFIG. 1 ). - The example of
FIG. 6 begins when a controller (not illustrated) receives an instruction to unwind the roller tube 201 (block 602). For example, the controller may receive an instruction from a wireless remote control via a wireless receiver included in the controller, from a wired remote control, from a button on a control panel, etc. In response to the instruction, the controller starts a timer (block 604). For example, the timer may be set for a duration that is long enough for the covering 200 to be unwound from its upper-most position to its lower-most position. The timer may additionally include an additional time to account for short delays in unwinding (e.g., a short amount of time during which the covering 200 is obstructed). Then, the controller operates themotor 208 in an unwinding direction (e.g., to lower covering material attached to the roller tube 201) (block 606). As previously described, a clutch of themanual control 210 or thestationary connector 212 prevents rotation of the drive shaft of themotor 208. Accordingly, the casing of themotor 208, the casing of thegearbox 206, theframe 220, and theroller tube 201 are rotated because themotor 208 no longer opposes unwinding of the covering 200 (e.g., where a weight attached to covering material of the covering 200 creates a torque to pull the covering material). - The controller then determines if the unwinding timer has expired (i.e., the unwinding time limit has been reached) (block 608). For example, the covering 200 may have been unwound from its upper-most position to its lower-most position. Alternatively, the covering 200 may have been unwound from an intermediate position to its lower-most position. In such an operation, the
motor 208 would continue to run when the covering 200 reaches its lower-most position while the one-way slip clutch 204 prevented torque from being applied to theroller tube 201 until the timer expired. In another instance, the covering 200 may encounter an obstruction that prevents fully unwinding the covering material. In such an operation, themotor 208 would continue to run while the one-way slip clutch 204 slipped to prevent excessive torque from being applied to theroller tube 201 until the timer expired. - If the unwinding timer has not expired (block 608), the
motor 208 continues to operate until the timer expires. If the unwinding timer has expired (block 608), the motor is stopped (block 610). The method ofFIG. 6 then ends until a new instruction is received at the controller. -
FIG. 7 illustrates an example torque limitingmotor coupling 68 that prevents a motor from applying torque to aroller tube 38 in an unwinding direction. The example configuration ofFIG. 7 includes, for example, a motoroutput shaft coupling 70 positioned on a motor shaft (not labeled). Aroller tube 38 is illustrated as an outer diameter of the system, which is connected to thefabric 74 and, in turn, theweighted rail 76. Atrack 78 is also illustrated which guides thefabric 74 during winding and unwinding operations. - The motor
output shaft coupling 70 functions as a ratchet crank, whereratchet gear teeth 80 are part of the inner diameter 36 of theroller tube 38 or are fitted thereto by an additional adaptor (not illustrated). Apawl 82 is connected to the motoroutput shaft coupling 70 by apivot 84 and acompression spring 86. - While the motor shaft is unwinding the
fabric 74, thepawl 82, locked against thegear teeth 80, prevents an uncontrolled unwind which could otherwise occur from the weight of thebottom rail 76. Similarly, when the motor shaft ceases unwinding or winds in the take-up direction, the motoroutput shaft coupling 70, with thepawl 82 locked against thegear teeth 80, enables winding of theroller tube 38 so as to raise thebottom rail 76 and retract thefabric 74 about theroller tube 38. In other words, the torque applied by this motor configuration, whether during an unwinding or winding operation, is in the winding direction. - While unwinding, should the roller tube become obstructed, for example, due to debris, the
motor shaft 38 would still turn. However, thepawl 82 and thegear 80, slipping relative to each other, would be unable to apply torque in the unwinding direction. - If an obstruction is in the track, a similar outcome is achieved. When the
rail 76 comes to rest on the obstruction, and thefabric 74 has bunched up in thetrack 78, themotor shaft 38 would still turn. Again, however, thepawl 82 andgear 80, slipping relative to each other, would be unable to apply torque in the unwinding direction. Without the application of torque in the unwinding direction, the fabric, with its weight supported by the obstruction, will not continue to unwind from theroller tube 38. -
FIG. 8 illustrates an example implementation of a torque limitingmotor coupling 88, which will now be discussed. As with the torque limitingmotor coupling 68, the torque limitingmotor coupling 88 is unable to apply torque in the unwinding direction. Furthermore, the torque limitingmotor coupling 88 also slips against a roller tube upon being subjected to opposing torque at a threshold level in a winding direction. - The
motor coupling 88 includes anadaptor shaft 90, which is a keyed cylinder, adapted to fit outside of the distal end of a shaft of a motor. Surrounding theadaptor shaft 90, centered between opposingproximate end 91 and distal end, 93 of theadaptor shaft 90, is a one-way bearing 92. - Functionally, the one-
way bearing 92 is analogous to the ratchet-pawl configuration of the torque limitingmotor coupling 68. That is, due to the one-way rolling of the outer bearing race with respect to theadaptor shaft 90, an attached motor is unable to apply torque in the unwinding direction. A difference between the torque limitingmotor coupling 88 and the ratchet-pawl configuration 68 is, for example, the bearing is quieter than a ratchet-pawl configuration. Furthermore, the torque limitingmotor coupling 88 does not require apivotable pawl 82 and also does not require amating gear structure 80 in theroller tube 38. - On the
outer race 94 of thebearing 92, a slip-clutch 96 is provided. The slip-clutch 96 is designed to slip against thebearing 92. Holding the slip-clutch 96 in place, on its radialouter surface 98, is aspring 800. The selection of the spring 800(e.g., the spring force of the spring) defines the threshold torque required to slip the slip-clutch 96 against thebearing 92. The slip-clutch 96 is not illustrated inFIG. 7 ; however, it can be integrated into that configuration as well. - In the example torque limiting
motor coupling 88 of, for example,FIG. 8 , thebearing 92, the slip-clutch 96 and thespring 800 are axially centered relative to each other and have substantially the same axial dimension. Theexample shaft 90 is longer than thebearing 92, the slip-clutch 96 and thespring 800. Among other things, this provides theproximate end 91 and thedistal shaft end 93 with a small amount of material for spacing thebearing 92, the slip-clutch 96 and thespring 800 from the axial base of theadapter shaft 90. - The axial buffer zone on both sides of the torque limiting
motor coupling 88 enables reversing the torque limitingmotor coupling 88 depending on whether a motor is placed on the left or right hand side within a roller tube, due to, for example, the location of available wiring. Reversing the torque limitingmotor coupling 88 is achieved by sliding theadaptor shaft 90 off of a motor shaft and reinstalling theadaptor shaft 90 so that thedistal end 93 of theadaptor shaft 90, rather than theproximate end 91, faces a distal end of an attached motor. - An
example cavity 802 is defined between opposing, circumferentially spacededges clutch 96 andedges spring 800, rendering the slip-clutch 96 andspring 800 “C” shaped. Specifically, abase 812 of thecavity 802 is theouter race 94 of thebearing 92. Afirst side 814 of thecavity 802 is defined by alignededges clutch 96 and thespring 800. Asecond side 816 of thecavity 802 is defined by alignededges clutch 96 and thespring 800. - The
example cavity 802 may be mated with a tang manufactured in a modified crown coupling. An example tang has a radial inner surface which does not reach thebearing 92. The tang moves circumferentially between opposingsides cavity 802 so that one of the tang surfaces presses against a respective one of thesides cavity 802, whereby the tang rotates with the slip-clutch 96. Thus, the modified crown coupling is capable of rotating with an attached motor shaft. - Depending on the direction the tang moves in the
cavity 802, the bearing 92 will either roll or lock. If locked, the slip-clutch 96 will slip when torque at the threshold limit is applied. Accordingly, if a covering is obstructed during a winding operation, the slip-clutch 96 slips when the torque of the motor reaches a threshold limit. The motor shaft then spins, without spinning theroller tube 38 as long as torque above this threshold limit is maintained, preventing overstraining of the motor or the fabric of the covering. - The slip-clutch 96 configuration should be selected so that slip occurs at a greater torque than required to wind the fabric. On the other hand, the configuration should be selected so that slip occurs at a lower torque than required to strain the motor.
- As an alternative to the slip-
clutch 96, a motor can be equipped with an overload system including one or more sensors. For example, a mechanical torque based sensor and/or an electrical current (e.g., amperage) based sensor (not illustrated) may be used. This type of system would shut off the motor 18 after mechanically sensing torque which exceeds a threshold and/or sensing a current draw which exceeds a threshold. -
FIG. 9 is an isometric illustration of an example architecturalopening covering assembly 900. In the example ofFIG. 9 , the coveringassembly 900 includes aheadrail 908. Theheadrail 908 is a housing having opposedend caps front 912, back 913 andtop sides 914 to form an open bottom enclosure. Theheadrail 908 also hasmounts 915 for coupling theheadrail 908 to a structure above an architectural opening such as a wall via mechanical fasteners such as screws, bolts, etc. Aroller tube 904 is disposed between the end caps 910, 911. Although a particular example of aheadrail 908 is shown inFIG. 9 , many different types and styles of headrails exist and could be employed in place of theexample headrail 908 ofFIG. 9 . Indeed, if the aesthetic effect of theheadrail 908 is not desired, it can be eliminated in favor of mounting brackets. - In the example illustrated in
FIG. 9 , theassembly 900 includes a covering 906, which is a cellular type of shade. In this example, thecellular covering 906 includes a unitary flexible fabric (referred to herein as a “backplane”) 916 and a plurality ofcell sheets 918 that are secured to thebackplane 916 to form a series of cells. Thecell sheets 918 may be secured to thebackplane 916 using any desired fastening approach such as adhesive attachment, sonic welding, weaving, stitching, etc. The covering 906 shown inFIG. 9 can be replaced by any other type of covering including, for instance, single sheet shades, blinds, and/or other cellular coverings. In the illustrated example, the covering 906 has an upper edge mounted to theroller tube 904 and a lower, free edge. The upper edge of the example covering 906 is coupled to theroller tube 904 via a chemical fastener (e.g., glue) and/or one or more mechanical fasteners (e.g., rivets, tape, staples, tacks, etc.). The covering 906 is movable between a raised position and a lowered position (illustratively, the position shown inFIG. 9 ). When in the raised position, the covering 906 is wound about theroller tube 904. - As discussed in detail below, the example architectural
opening covering assembly 900 is provided with a powered motor to move the covering 906 between the raised and lowered positions. The powered motor is controlled by a local controller, a local controller in communication with a central controller, and/or only a central controller. In the illustrated example, the motor and the local controller are disposed inside thetube 904. Theexample assembly 900 ofFIG. 9 further includes amanual controller 920 that may be used to manually override commands provided by the central controller and/or the local controller, and/or may be used to move the covering 906 between the raised and lowered positions. -
FIG. 10 illustrates theroller tube 904 of theassembly 900 coupled to themanual controller 920. In the illustrated example, themanual controller 920 includes acord 1000. In some instances, thecord 1000 may be a chain, a beaded chain, a rotatable rod, a crank, a lever, and/or any other suitable device. As described in greater detail below, when thecord 1000 is actuated (e.g., pulled with sufficient force), themanual controller 920 rotates thetube 904, thereby enabling a user to selectively raise or lower the covering 906 via themanual controller 920. -
FIG. 11 is a perspective view of the examplemanual controller 920 ofFIG. 9 with thetube 904 removed. In the illustrated example, theheadrail 908 is also removed. The examplemanual controller 920 is coupled to one of themounts 915. Themanual controller 920 includes amale connector 1100, which includes aplate 1102 and ashaft 1104 extending from theplate 1102. The example shaft ofFIG. 11 includes plurality ofsplines 1106. As described in greater detail below, theshaft 1104 of themale connector 1100 is coupled to a clutch assembly disposed inside thetube 904. -
FIG. 12 is a side view of theexample male connector 1100 ofFIG. 11 . Theexample male connector 1100 includes afirst arm 1200 and asecond arm 1202, each of which extends from theplate 1102 into themanual controller 920. As described in greater detail below, the examplemanual controller 920 ofFIG. 11 restricts movement of themale connector 1100 unless thecord 1000 is moving. -
FIG. 13 is an exploded view of the examplemanual controller 920 ofFIG. 11 . In the illustrated example, themanual controller 920 includes ahousing 1300 defining anannular ridge 1302, which includes a plurality ofgrooves 1304. Aring 1306 defining a plurality ofsplines 1308 is disposed in the space defined by theannular ridge 1302. Thegrooves 1304 of theridge 1302 receive thesplines 1308 of thering 1306 to substantially prevent rotation of thering 1306 during operation of themanual controller 920. Awrap spring 1310 is disposed adjacent an interior surface 512 of thering 1306 and oriented substantially concentric to thering 1306. In the illustrated example, thewrap spring 1310 is tensioned such that an outer surface 514 of thewrap spring 1310 engages the interior surface 512 of thering 1306. Thewrap spring 1310 includes afirst tang 1316 and asecond tang 1318. Thehousing 1300 defines ashaft 1320 to receive abearing 1322 about which thewrap spring 1310, asprocket 1324 and themale connector 1100 are supported. Theexample sprocket 1324 ofFIG. 13 is operatively coupled to thecord 1000. - The
example sprocket 1324 includes a first wing orarm 1326 and a second wing orarm 1328, each of which extends toward thehousing 1300 in the orientation ofFIG. 13 . Thearms 1200, 1202 (illustrated inFIG. 12 ) of themale connector 1100 and thearms sprocket 1324 are disposed adjacent thetangs warp spring 1310. A fitting 1329 (e.g., a plug) operatively couples themale connector 1100 to thehousing 1300, and a spring-loaded fastener 1330 (e.g., a spring and a rivet) couples thehousing 1300 to one of themounts 915. - A first
cord guide plate 1332 and a secondcord guide plate 1334 are coupled to theexample housing 1300 via acover 1336 to define afirst channel 1338 and asecond channel 1340. In the illustrated example, a first portion of thecord 1000 is disposed in thefirst channel 1338, and a second portion of thecord 1000 is disposed in thesecond channel 1340. The example first andsecond channels cord 1000 to prevent thecord 1000 from disengaging thesprocket 1324 during operation (e.g., when a user pulls the cord 1000). In the illustrated example, a pair ofmechanical fasteners cover 1336, the firstcord guide plate 1332, and the secondcord guide plate 1334 to thehousing 1300. - When the
manual controller 920 is operated via the cord 1000 (e.g., by pulling thecord 1000 with sufficient force), thecord 1000 applies torque to thesprocket 1324. As a result, one of thearms sprocket 1324 engages one thetangs wrap spring 1310, thereby causing thewrap spring 1310 to tighten. When thewrap spring 1310 tightens, a diameter of thewrap spring 1310 decreases, and thewrap spring 1310 disengages the inner surface 512 of thering 1306. As a result, thewrap spring 1310 and, thus, thesprocket 1324 may be rotated by actuating thecord 1000. When thewrap spring 1310 rotates, one of thetangs arms male connector 1100, thereby rotating themale connector 1100. As described in greater detail below, themale connector 1100 is operatively coupled to theroller tube 904. Thus, the user may selectively raise or lower the example covering 906 by actuating thecord 1000. - Conversely, if torque is applied to the
male connector 1100 via theshaft 1104, one of thearms male connector 1100 engages one of thetangs wrap spring 1310, thereby causing thewrap spring 1310 to loosen and, thus, the diameter of thewrap spring 1310 to increase. As a result, the outer surface 514 of thewrap spring 1310 tightly engages the inner surface 512 of thering 1306. When thewrap spring 1310 engages thering 1306 with sufficient force, thewrap spring 1310 is held substantially stationary by the interconnection of thering 1306 to thehousing 1300, thereby substantially preventing themale connector 1100 from rotating. Therefore, although a user may rotate themale connector 1100 by actuating thecord 1000, themale connector 1100 is substantially prevented from rotation via torque (e.g., torque applied by a motor) applied to theshaft 1104 of themale connector 1100. -
FIG. 14 is perspective view of an exampleclutch assembly 1400 and anexample motor 1402 of the example architecturalopening covering assembly 900 ofFIG. 9 . The exampleclutch assembly 1400 ofFIG. 14 and theexample motor 1402 are disposed inside theroller tube 904. The exampleclutch assembly 1400 includes a frame orhousing 1404. In the illustrated example, theframe 1404 is substantially cylindrical and defines one or more grooves orchannels protrusions 1500, 1502 (FIG. 15 ) of thetube 904. The exampleclutch assembly 1400 is operatively coupled to the examplemanual controller 920 ofFIG. 11 via a female connector orcoupling 1410, which receives themale connector 1100 of themanual controller 920. In the illustrated example, thefemale connector 1410 includes ridges orsplines 1418 to engage thesplines 1106 of themale connector 1100. As described in greater detail below, when the covering 906 is raised or lowered under the influence of themotor 1402, themale connector 1100 of themanual controller 920 holds thefemale connector 1410 of the exampleclutch assembly 1400 substantially stationary to cause themotor 1402 to rotate with theframe 1404. -
FIG. 15 is a perspective view of theexample tube 904 of the example architecturalopening covering assembly 900 ofFIG. 9 . In the illustrated example, thetube 904 defines a first ridge orprotrusion 1500 and a second ridge orprotrusion 1502. The first andsecond protrusions clutch assembly 1400 ofFIG. 14 is disposed inside theexample tube 904, theprotrusions tube 904 are disposed in theslots frame 1404. During operation of theassembly 900, themotor 1402 and/or themanual controller 920 applies torque to theframe 1404 of theclutch assembly 1400. As a result, the torque applied to theframe 1404 is transferred to theprotrusions tube 904 via theslots frame 1404, thereby causing thetube 904 to rotate with theframe 1404. -
FIGS. 16-18 are cross-sectional views of the exampleclutch assembly 1400 and theexample motor 1402 ofFIG. 14 . The exampleclutch assembly 1400 includes a first clutch 1600 and a second clutch 1602. The example first clutch 1600 ofFIG. 16 includes thefemale connector 1410 and adrive shaft 1604. Theexample female connector 1410 is operatively coupled to afirst end 806 of thedrive shaft 1604. Theexample drive shaft 1604 ofFIG. 16 includes acollar 1607. -
FIG. 17 is a cross-sectional view taken alongline 17A-17A ofFIG. 16 . In the illustrated example, the first clutch 1600 provides a dead band (i.e., a lost motion path) between thefemale connector 1410 and thedrive shaft 1604. In the illustrated example, theexample female connector 1410 includes a first spline ortooth 1700 and a second spline ortooth 1702. In the illustrated example, the first andsecond teeth second teeth female connector 1410 adjacent and radial to thefirst end 806 of thedrive shaft 1604. Thecollar 1607 of theexample drive shaft 1604 is adjacent theteeth female connector 1410, and first andsecond teeth first collar 1607 substantially parallel to a longitudinal axis of thedrive shaft 1604. In the illustrated example, the first andsecond teeth tube 904 is rotating under the influence of themotor 1402, theteeth female connector 1410 engage theteeth first collar 1607 of thedrive shaft 1604. As described in greater detail below, when the covering 906 is fully unwound under the influence of themotor 1402, thetooth 1702 separates from thetooth 1706, and themotor 1402 drives thedrive shaft 1604 through at least a portion of the dead band. As a result, thedrive shaft 1604 rotates relative to thefemale connector 1410, and thetube 904 stops rotating. As described in further detail herein, the termination of rotation of thetube 904 is detected to identify the fully unwound position. - A portion of the
example drive shaft 1604 is supported by a bearing 1608 (e.g., a dry bearing). In the illustrated example, the bearing 1608 is defined by theframe 1404. Asecond end 1610 of thedrive shaft 1604 is coupled to acoupling 1612 of the second clutch 1602 (e.g., a holding clutch). Thus, in the illustrated example, the first clutch 1600 operatively couples themanual controller 920 to the second clutch 1602. In some examples, themanual controller 920 and/or the first clutch 1600 includes a gearbox (e.g., a planetary gearbox) to increase a torque output of themanual controller 920. - In the illustrated example, the
coupling 1612 includes afirst bore 1614 and asecond bore 1616 opposite thefirst bore 1614. The example first bore 1614 receives thesecond end 1610 of thedrive shaft 1604. The example second bore 1616 receives amotor drive shaft 1618 and acore 1620 of theframe 1404. In the illustrated example, thecore 1620 of theframe 1404 includes abrake shaft 1622 extending from aframe collar 1624. Themotor drive shaft 1618 of the illustrated example includes a center orcore shaft 1626 and anouter shaft 1628 concentric to thecenter shaft 1626. -
FIG. 18 is a cross-sectional view of theclutch assembly 1400 taken alongline 18A-18A. In the illustrated example, thesecond bore 1616 of thecoupling 1612 includes a pair of inwardly extending splines orridges 1800, 1802 (e.g., parallel key splines). The exampleouter shaft 1628 includes opposing slits orclefts splines coupling 1612. - As illustrated in
FIGS. 16 and 18 , thebrake shaft 1622 is disposed around thecenter shaft 1626 in a space defined between thecenter shaft 1626 and theouter shaft 1628. In the illustrated example, theframe collar 1624 of thecore 1620 is coupled to theframe 1404. In some examples, theframe 1404 and thecore 1620 are integrally formed. - The example second clutch 1602 includes one or more wrap springs 1808 disposed around the
example brake shaft 1622. In some examples, each of the wrap springs 1808 includes four coils. However, wrap springs including other numbers of coils are used in other examples. Eachexample wrap spring 1808 includes a first tang orarm 1810 on a first end of thespring 1808 and a second tang orarm 1812 on a second end of thespring 1808. In the illustrated example, the wrap springs 1808 are oriented such that thefirst tang 1810 of each of the wrap springs 1808 is disposed in theslit 1804 of theouter shaft 1628 adjacent one of thesplines coupling 1612, and thesecond tang 1812 is disposed in theslit 1806 adjacent the other the one of thesplines motor drive shaft 1618 rotates during operation, theouter shaft 1628 engages one of thetangs coupling 1612 rotates during operation, one of thesplines coupling 1612 engage one of thetangs coupling 1612 engages one of thetangs springs 1808 tighten around thebrake shaft 1622 to resist relative movement between theframe 1404 and the second clutch 1602. If theouter shaft 1628 of themotor drive shaft 1618 engages one of thetangs brake shaft 1622 to release resistance to relative movement between the second clutch 1602 and theframe 1404. - The
center shaft 1626 of the examplemotor drive shaft 1618 is coupled to anoutput shaft 1630 of themotor 1402 via acoupling 1632. In the illustrated example, thecoupling 1632 includes a plurality of noise and/orvibration insulators motor 1402 is an electric motor (e.g., a 12-24V DC motor) and includes a gearbox or a transmission. Theexample motor 1402 is able to operate at speeds up to about 6000 rpm and the gearbox provides approximately a 130:1 ratio between the speed of themotor 1402 and a speed of amotor output shaft 1630. Themotor 1402 and the gearbox are disposed inside ahousing 1638, which is coupled to theframe 1404 via one or moremechanical fasteners 1640 and sound orvibration insulators - During operation, the
motor 1402, themanual controller 920, or both may rotate thetube 904 and, thus, wind and/or unwind the covering 906 (i.e., lower or raise the covering 906, respectively). For example, when themotor 1402 drives themotor drive shaft 1618, theouter shaft 1628 of themotor drive shaft 1618 engages one of thetangs brake shaft 1622. If themanual controller 920 is not operated during this time, themale connector 1100 of themanual controller 920 prevents themotor drive shaft 1618 from rotating the second clutch 1602. Thus,motor drive shaft 1618 is held substantially stationary, which causes themotor 1402 to rotate about themotor output shaft 1630. As a result, themotor 1402 rotates theframe 1404 and, thus, thetube 904. - If the
manual controller 920 is operated (e.g., by a user pulling thecord 1000 with sufficient force), and themotor 1402 is not driven (e.g., during a power outage, manual operation by a user without access to a central controller or other electronic controls, etc.), themale connector 1100 rotates, thereby causing thefemale connector 1410, thedrive shaft 1604, thecoupling 1612, and themotor drive shaft 1618 to rotate. As a result, thecoupling 1612 engages one of thetangs brake shaft 1622 and, thus, transfers the torque applied from themanual controller 920 to theframe 1404 to cause theroller tube 904 to rotate. In the illustrated example, the wrap springs 1808 includetangs splines coupling 1612. Thus, rotation of thecoupling 1612 in the winding direction and the unwinding direction causes the wrap springs 1808 to tighten around thebrake shaft 1626. As a result, the covering 906 may be selectively raised or lowered by a user via the manual controller 920 (e.g., without electrical power supplied to the motor 1402). - Movement of the
motor 1402 and, thus, thetube 904 is additive to movement of themotor drive shaft 1618. For example, if themanual controller 920 causes themotor drive shaft 1618 to rotate at a velocity of 20 revolutions per minute in a first direction, and themotor 1402 is driven to rotate about theoutput shaft 1630 at a velocity of 25 revolutions per minute in a second direction opposite the first direction, then thetube 904 rotates in the second direction at a velocity of 5 revolutions per minute. In another example, if themanual controller 920 causes themotor drive shaft 1618 to rotate at a velocity of 20 revolutions per minute in the first direction, and themotor 1402 is driven to rotate about theoutput shaft 1630 at a velocity of 25 revolutions per minute in the first direction, thetube 904 rotates in the first direction at a velocity of 45 revolutions per minute. Thus, themanual controller 920 and themotor 1402 may cooperate or compete to assist or prevent movement of thetube 904 via themanual controller 920. - During operation of the architectural
opening covering assembly 900, if thetube 904 rotates to fully unwind the covering 906 (i.e., the covering 906 is at a fully unwound position), themotor 1402 drives thedrive shaft 1604 through the dead band of the first clutch 1600. For example, as the covering 906 unwinds, themotor 1402 applies a first torque to thetube 904 in a first direction (e.g., counterclockwise) and a weight of the covering 906 applies a second torque to thetube 904 greater than the first torque in a second direction opposite the first direction (e.g., clockwise). As a result, theteeth drive shaft 1604 engage theteeth female connector 1410, and themotor 1402 allows the weight of the covering 906 to cause thetube 904 and themotor 1402 to rotate together to unwind thecovering 906. If thetube 904 unwinds past the fully unwound position (i.e., where the covering 906 fully unwinds from the tube 904), the weight of the covering 906 applies torque to thetube 904 in the first direction. As a result, themotor 1402 drives theteeth drive shaft 1604 out of engagement with theteeth female connector 1410 for a portion of a revolution (e.g., 160 degrees), but thetube 904 remains substantially stationary while themotor 1402 is operating. As described in further detail below, the disengagement may be detected (e.g., by detecting that themotor 1402 is operating but the tube 902 is not rotating) to determine a fully unwound position of thecovering 906. -
FIG. 19 is a perspective view of an examplelocal controller 1900. The examplelocal controller 1900 is disposed inside of and coupled to theroller tube 904. In the illustrated example, thelocal controller 1900 includes ahousing 1902. Afirst portion 1104 of theexample housing 1902 is coupled to thetube 904, and asecond portion 1106 of thehousing 1902 is journalled to asecond bracket 1908 via a slip ring or rotary electronic joint 1910. In some examples, thesecond bracket 1908 is mounted to a wall or an architectural opening frame. During operation, thehousing 1902 rotates with thetube 904 about an axis of rotation of thetube 904. -
FIG. 20 is a cross-sectional view of the examplesecond bracket 1908 and thesecond portion 1106 of theexample housing 1600. In the illustrated example, theslip ring 1910 includes twoelectrical contacts electrical contacts - The example
local controller 1900 ofFIG. 20 includes acircuit board 2012, which is coupled to thesecond portion 1106 of thehousing 1902 adjacent theelectrical contacts circuit board 2012 includes three spring-loaded,conductive pins housing 1902 is coupled to theslip ring 1610, thepins electrical contacts -
FIG. 21 is another cross-sectional view of theexample housing 1902 and theexample bracket 1908. In the illustrated example, thesecond portion 1106 of thehousing 1902 is slidably coupled to thefirst portion 1104 of thehousing 1902. Aplunger 2100 is disposed inside thesecond portion 1106 of thehousing 1902 and aspring 2102 seated between thefirst portion 1104 of thehousing 1902 and theplunger 2100 biases thecircuit board 2012 toward thesecond bracket 1908 to urge thepins electrical contacts - In the illustrated example, a
control board 2104 is disposed inside thefirst portion 1104 of thehousing 1902. The examplelocal controller 1900 is coupled to themotor 1402 and may be communicatively coupled to a central controller, a wired or wireless remote control, or any other device for instructing the local controller. During operation, thelocal controller 1900 transmits signals to themotor 1402 to cause themotor 1402 to rotate thetube 904, allow thetube 904 to rotate, and/or hold thetube 904 substantially stationary. -
FIG. 22 is a block diagram of anexample processor platform 2200 capable of executing the instructions ofFIGS. 3-6 to implement a controller of, for example, thecontroller board 120 ofFIG. 1 , thelocal controller 1900 ofFIG. 19 , and/or any other controller. Theprocessor platform 2200 can be, for example, a server, a personal computer, or any other suitable type of computing device. - The
processor platform 2200 of the instant example includes aprocessor 2212. For example, theprocessor 2212 can be implemented by one or more microprocessors or controllers from any desired family or manufacturer. - The
processor 2212 includes a local memory 2213 (e.g., a cache) and is in communication with a main memory including avolatile memory 2214 and anon-volatile memory 2216 via abus 2218. Thevolatile memory 2214 may be implemented by Synchronous Dynamic Random Access Memory (SDRAM), Dynamic Random Access Memory (DRAM), RAMBUS Dynamic Random Access Memory (RDRAM) and/or any other type of random access memory device. Thenon-volatile memory 2216 may be implemented by flash memory and/or any other desired type of memory device. Access to themain memory - The
processor platform 2200 also includes aninterface circuit 2220. Theinterface circuit 2220 may be implemented by any type of interface standard, such as an Ethernet interface, a universal serial bus (USB), and/or a PCI express interface. - One or
more input devices 2222 are connected to theinterface circuit 2220. The input device(s) 2222 permit a user to enter data and commands into theprocessor 2212. The input device(s) can be implemented by, for example, a keyboard, a mouse, a touchscreen, a track-pad, a trackball, isopoint, a button, a switch, and/or a voice recognition system. - One or
more output devices 2224 are also connected to theinterface circuit 2220. Theoutput devices 2224 can be implemented, for example, by display devices (e.g., a liquid crystal display, speakers, etc.). - The
processor platform 2200 also includes one or more mass storage devices 2228 (e.g., flash memory drive) for storing software and data. Themass storage device 2228 may implement thelocal storage device 2213. - The coded
instructions 2232 ofFIGS. 3-6 may be stored in themass storage device 2228, in thevolatile memory 2214, in thenon-volatile memory 2216, and/or on a removable storage medium such as a flash memory drive. - Although certain example methods, apparatus and articles of manufacture have been described herein, the scope of coverage of this patent is not limited thereto. On the contrary, this patent covers all methods, apparatus and articles of manufacture fairly falling within the scope of the claims either literally or under the doctrine of equivalents.
Claims (32)
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Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
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US20180106100A1 (en) * | 2016-10-19 | 2018-04-19 | Hunter Douglas, Inc. | Dual mode architectural structure covering |
US20180106102A1 (en) * | 2016-10-19 | 2018-04-19 | Hunter Douglas, Inc. | End caps for architectural coverings |
US10655384B2 (en) * | 2016-10-19 | 2020-05-19 | Hunter Douglas, Inc. | Dual mode architectural structure covering |
US10731411B2 (en) * | 2016-10-19 | 2020-08-04 | Hunter Douglas, Inc. | End caps for architectural coverings |
US11299932B2 (en) | 2017-10-09 | 2022-04-12 | Hunter Douglas, Inc. | Rail assemblies for motorized architectural coverings and related methods |
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