EP0254757B1 - Sun blind power unit with integral hand crank - Google Patents
Sun blind power unit with integral hand crank Download PDFInfo
- Publication number
- EP0254757B1 EP0254757B1 EP19860110430 EP86110430A EP0254757B1 EP 0254757 B1 EP0254757 B1 EP 0254757B1 EP 19860110430 EP19860110430 EP 19860110430 EP 86110430 A EP86110430 A EP 86110430A EP 0254757 B1 EP0254757 B1 EP 0254757B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- blind
- power unit
- hand crank
- opening
- reduction gear
- 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.)
- Expired
Links
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
- E06B9/56—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
- E06B9/70—Operating devices or mechanisms, e.g. with electric drive comprising an electric motor positioned outside 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
- E06B9/68—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
- E06B9/56—Operating, guiding or securing devices or arrangements for roll-type closures; Spring drums; Tape drums; Counterweighting arrangements therefor
- E06B9/80—Safety measures against dropping or unauthorised opening; Braking or immobilising devices; Devices for limiting unrolling
- E06B9/82—Safety measures against dropping or unauthorised opening; Braking or immobilising devices; Devices for limiting unrolling automatic
- E06B9/88—Safety measures against dropping or unauthorised opening; Braking or immobilising devices; Devices for limiting unrolling automatic for limiting unrolling
Definitions
- the invention relates to a sun blind power unit with integral hand crank provided with a manually actuated handle inserted in a crank.
- Such blinds are disadvantageous, because they cannot be operated to automatically open and close .
- the object underlying the invention is to provide an improved sun blind having a system which apart from permitting conventional opening and closing, the blind comprises automatic electric actuation by the actuation of separate push buttons for opening and closing the blind.
- the device according to the invention should also be retrofitted without having to modify the blind in any way. Fitting and operating the power unit should also be straight-forward and reduced to merely essential procedures.
- a limit switch is located near the close stop of the blind actuating a separate electric circuit to permit gentle closing in order to protect both the fabric of the blind and its constructive components, including the motor, from excessive forces which could otherwise result in damages.
- the limit switch ensures that actuating the power unit longer than necessary will not result in the blind winding in the opposite direction. As soon as the position of maximum opening is attained further rotation of the blind take-up roller is automatically prevented.
- the complete sun blind power unit as shown in Fig. 1 is made up of an opening limit switch, a differential gear, a manual crank, a motor, a closing limit switch and a control unit.
- the limit switch prevents rewinding of the blind in the opposite direction when the arms of the blind are fully open.
- the motor 18 is secured by the screws 19 to the hood 15 which is secured to the veranda by screws 16 screwed into the seal insert 17 provided in the side enclosures 24 of the veranda.
- the closing procedure can also be accomplished by motor action and manually.
- the operator presses the corresponding push button 1 and continues to hold it pressed as long as closing is proceeding. Should he release the push button, the blind will halt partially closed.
- the electric circuit contained in the control unit reduces the voltage of the power supply from 12V DC to approximately 8V DC, thus reducing the power output of the motor 18. This reduces the closing speed and deminishes the closing torque. Even if the operator wrongly reacts or should accidently press the wrong button in attempting to fully close the blind (either opening or closing) the motor will thus cause no adverse effect, for not having sufficient torque.
- the cover 10 which is secured to the hood 15 by screws 20 protects the system from dust and facilitates removal and assembly for inspection of all components and maintenance.
- Figure 2 shows the assembly of the blind in standard version without the power unit, the blind being prepared for installation of the power unit.
- the spacer 21 which can be adjusted by means of the screw 22 is used to eliminate any play in the blind resulting from any back lash in mating of the gears in the components.
- the above-mentioned sun blind power unit apart from permitting conventional opening and closing the system, allows electric actuation by the actuation of separate push buttons for opening and closing.
- the unit requires a 12V DC supply and thus permits connection to a battery which can be installed together with the sun blind.
- the device can also be retrofitted without having to modify the blind in any way. Fitting and operation of the power unit is also straight-forward and reduced to merely essential procedures.
- a limit switch located near the close stop of the blind actuates a separate electric circuit to permit gentle closing to protect both the fabric of the blind and its constructive components, including the motor, from excessive forces which could otherwise result in damage.
- the limit switch ensures that actuating the power unit longer than necessary will not result in the blind winding in the opposite direction. As soon as the position of maximum opening is attained further rotation of the blind take-up roller is automtically prevented.
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Operating, Guiding And Securing Of Roll- Type Closing Members (AREA)
- Blinds (AREA)
Description
- The invention relates to a sun blind power unit with integral hand crank provided with a manually actuated handle inserted in a crank. Such blinds, however, are disadvantageous, because they cannot be operated to automatically open and close .
- Therefore, the object underlying the invention is to provide an improved sun blind having a system which apart from permitting conventional opening and closing, the blind comprises automatic electric actuation by the actuation of separate push buttons for opening and closing the blind. In this connection the device according to the invention should also be retrofitted without having to modify the blind in any way. Fitting and operating the power unit should also be straight-forward and reduced to merely essential procedures.
- This object will be achieved by a system for automatic electric actuation of the blind by the action of separate push buttons for opening and closing the blind by means of a motor located externally on the blind with the hand crank positioned at the same of the two longitudinal ends of the blind.
- Other advantages of the invention reside in that a limit switch is located near the close stop of the blind actuating a separate electric circuit to permit gentle closing in order to protect both the fabric of the blind and its constructive components, including the motor, from excessive forces which could otherwise result in damages.
- Moreover, when the blind is opened the limit switch ensures that actuating the power unit longer than necessary will not result in the blind winding in the opposite direction. As soon as the position of maximum opening is attained further rotation of the blind take-up roller is automatically prevented.
- Further details of the invention can be gathered from the following description in connection with the drawings in which two embodiments of the invention are shown.
- Fig. 1
- is a longitudinal section of the right end of the housing of the sun blind power unit including the motor for driving the blind, constructed in accordance with the invention,
- Fig. 2
- is a longitudinal section of the right end of the sun blind power unit without motor but only with a hand crank, constructed in an usual and known manner,
- Fig. 3
- is an end cross-section view of the housing in accordance with the embodiment of the invention shown by Figure 1.
- The complete sun blind power unit as shown in Fig. 1 is made up of an opening limit switch, a differential gear, a manual crank, a motor, a closing limit switch and a control unit.
- The sequence in which these components function is clearer to understand by describing the movements involved in opening and closing the blind.
- In order to automatically open the blind the operator presses the
push button 1 and continues to hold it pressed as long as opening is proceeding. Should he release the push button, the blind will be held partially open. Rotation of themotor shaft 2 is imparted by thecoupling 3 keyed to the end of thepinion gear 4 to rotate the threeplanetary gears 5 about the pinion, thus rotating also theflange 6 which is part of the limit switch by it being also geared to the three planetary gears in movement. - At this point the limit switch for opening located inside the tubular take-up-roller of the blind comes into action to permit opening of the blind.
- If opening of the blind will not be accomplished by motor action but manually the operator actuates the handle supplied in the kit, inserted in the lug 7 of the
crank 8. This is used to turn the helical gear which causes, the reason of its coupling to the square hole in drum 9, rotation of theflange 6 which is part of the limit switch. - The
planetary gears 5 rotating about thepinion gear 4 which remains stopped due to being rigidly secured to themotor shaft 2, render rotation impossible because of the coupling of the idle worm gear of themotor 18 itself. - In both cases of opening by motor action or by cranking the limit switch prevents rewinding of the blind in the opposite direction when the arms of the blind are fully open.
- Opening, in every case requires the safety device to be disinserted by manually actuating the lever located externally on the front of the veranda.
- The
motor 18 is secured by thescrews 19 to thehood 15 which is secured to the veranda byscrews 16 screwed into the seal insert 17 provided in the side enclosures 24 of the veranda. - The closing procedure can also be accomplished by motor action and manually. In order to close the opened blind by motor action the operator presses the
corresponding push button 1 and continues to hold it pressed as long as closing is proceeding. Should he release the push button, the blind will halt partially closed. - The interaction of the components of the system is identical to that already described in the opening phase. Merely the sense of direction is the opposite. Near to the fully closed position the edge of the blind actuates the limit switch 23.
- The electric circuit contained in the control unit reduces the voltage of the power supply from 12V DC to approximately 8V DC, thus reducing the power output of the
motor 18. This reduces the closing speed and deminishes the closing torque. Even if the operator wrongly reacts or should accidently press the wrong button in attempting to fully close the blind (either opening or closing) the motor will thus cause no adverse effect, for not having sufficient torque. - If the blind should be operated manually, then acutuation of the
crank 8 and functioning of the system are the same as described in the opening phase. Merely the sense of direction is the opposite. In both cases of motor actuated or manual closing the safety device prevents accidental opening. - The
cover 10 which is secured to thehood 15 byscrews 20 protects the system from dust and facilitates removal and assembly for inspection of all components and maintenance. - Figure 2 shows the assembly of the blind in standard version without the power unit, the blind being prepared for installation of the power unit.
- The
spacer 21 which can be adjusted by means of thescrew 22 is used to eliminate any play in the blind resulting from any back lash in mating of the gears in the components. - Thus, the above-mentioned sun blind power unit, apart from permitting conventional opening and closing the system, allows electric actuation by the actuation of separate push buttons for opening and closing. The unit requires a 12V DC supply and thus permits connection to a battery which can be installed together with the sun blind.
- In the second version (Fig. 2) the device can also be retrofitted without having to modify the blind in any way. Fitting and operation of the power unit is also straight-forward and reduced to merely essential procedures.
- A limit switch located near the close stop of the blind actuates a separate electric circuit to permit gentle closing to protect both the fabric of the blind and its constructive components, including the motor, from excessive forces which could otherwise result in damage. When the blind is opened the limit switch ensures that actuating the power unit longer than necessary will not result in the blind winding in the opposite direction. As soon as the position of maximum opening is attained further rotation of the blind take-up roller is automtically prevented.
Claims (1)
- Sun blind including a power unit for driving the blind, comprising an electric motor (18) and a hand crank (7) which are both permanently connected to the blind, the electric motor (18) being coupled to a shaft (4) of a reduction gear pin engaged with planetary gears (5) surrounding the reduction gear pin and rotatably mounted on axes fixed to a drum-like housing (9) surrounding the shaft of the reduction gear pin, which planetary gears are engaged by a flange-like sunwheel (6) surrounding them and connected to a ratchet of the blind, whereas the hand crank (7), which is normally blocked through a helical gear is in driving connection with the drum-like housing (9), which is supported in a circumferential extension of the sunwheel and is trapped in its rim by a snap ring so that both the hand crank (7) and the electric motor (18) are connected to block either the shaft (4) of the reduction gear pinion or the drum-like housing (9) from rotation and to allow the planetary gears (5) to rotate.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP19860110430 EP0254757B1 (en) | 1986-07-29 | 1986-07-29 | Sun blind power unit with integral hand crank |
DE8686110430T DE3678721D1 (en) | 1986-07-29 | 1986-07-29 | SUN CURTAIN DRIVE UNIT WITH INTEGRATED HAND CRANK. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP19860110430 EP0254757B1 (en) | 1986-07-29 | 1986-07-29 | Sun blind power unit with integral hand crank |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0254757A1 EP0254757A1 (en) | 1988-02-03 |
EP0254757B1 true EP0254757B1 (en) | 1991-04-10 |
Family
ID=8195304
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19860110430 Expired EP0254757B1 (en) | 1986-07-29 | 1986-07-29 | Sun blind power unit with integral hand crank |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP0254757B1 (en) |
DE (1) | DE3678721D1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101297719B1 (en) | 2012-08-30 | 2013-08-20 | (주)테라솔라 | A shade drive apparatus using planet gear system |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE202006012081U1 (en) * | 2006-08-04 | 2006-10-12 | Pozzi, Carlo Maurizio | Combination drive for sun awning has electric drive motor and planetary gearing with manual crank drive and a bearing on side of planetary gearing facing shaft journal socket |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE433708C (en) * | 1925-09-22 | 1926-09-06 | Alfred Hartrampf | Electric and hand winch for shutters |
FR984357A (en) * | 1949-04-09 | 1951-07-05 | Mineur Becourt Et Fils Ets | Electrically operated roller shutter |
DE1983758U (en) * | 1968-01-26 | 1968-04-18 | Dipl-Volksw Hans Wiegelmann | DRIVE UNIT FOR ROLLER DOORS AND THE LIKE |
DE8404942U1 (en) * | 1984-02-18 | 1984-07-05 | Ernst Selve GmbH & Co KG, 5880 Lüdenscheid | TUBE MOTOR FOR WINDING AND UNWINDING ROLLING SHUTTERS, ROLLING DOORS, AWNINGS AND THE LIKE |
-
1986
- 1986-07-29 EP EP19860110430 patent/EP0254757B1/en not_active Expired
- 1986-07-29 DE DE8686110430T patent/DE3678721D1/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101297719B1 (en) | 2012-08-30 | 2013-08-20 | (주)테라솔라 | A shade drive apparatus using planet gear system |
Also Published As
Publication number | Publication date |
---|---|
EP0254757A1 (en) | 1988-02-03 |
DE3678721D1 (en) | 1991-05-16 |
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