CN1195438C - Heavy-curtain driving device - Google Patents

Heavy-curtain driving device Download PDF

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Publication number
CN1195438C
CN1195438C CNB99100325XA CN99100325A CN1195438C CN 1195438 C CN1195438 C CN 1195438C CN B99100325X A CNB99100325X A CN B99100325XA CN 99100325 A CN99100325 A CN 99100325A CN 1195438 C CN1195438 C CN 1195438C
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China
Prior art keywords
valance
heavy
rope
driving device
motor
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CNB99100325XA
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CN1251285A (en
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毛启明
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Individual
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Priority claimed from US09/176,092 external-priority patent/US6144177A/en
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  • Blinds (AREA)
  • Curtains And Furnishings For Windows Or Doors (AREA)
  • Power-Operated Mechanisms For Wings (AREA)
  • Operating, Guiding And Securing Of Roll- Type Closing Members (AREA)
  • Manipulator (AREA)
  • Knitting Machines (AREA)

Abstract

A drapery actuator to open and close draperies, comprising a housing and a drive pulley supported by the housing to engage a drapery cord coupled to a drape. A motor, typically a D.C. motor, is supported by the housing for providing torque to reversibly rotate the drive pulley to move the drapery cord between a first extreme (typically closed) position and a second extreme (typically open) position. A first electrical switch operatively connected to the motor functions as a cut-out switch and reversing switch to stop the motor from continued turning in a given direction and thereafter switching polarity, to allow the motor to turn in an opposite direction when the switch is re-activated. A torque-activated mechanism is provided, adapted to actuate the first electrical switch when the drive pulley moves the drapery cord to the first position, and is further adapted to actuate the first electrical switch when the drive pulley is reversibly rotated by the motor to move the drapery cord to the second position.

Description

Heavy-curtain driving device
Technical field
The present invention relates to a kind of heavy-curtain driving device, more particularly, relate to a kind of driver electronic, that be used for open and close valance etc.
Background technology
The application is the continuous part of the U.S. Patent application S/N 08/703,760 of proposition on August 27th, 1996.
Originally,, make valance along a valance rope, between open position and closing position, move with manual methods in order to open valance.This certainly regulates the amount of the light that enters the room effectively.
People always wish to have various electronic heavy-curtain driving devices to remove the open and close valance.This heavy-curtain driving device has a drive pulley, can engage with the valance rope that engages with valance etc.The action of this drive pulley can be with the valance open and close.In order to make this drive pulley can drive this valance rope motion effectively, this valance rope must have suitable tension force.
For this drive pulley is engaged with the valance rope, with the open and close valance, this heavy-curtain driving device will be installed on the wall.
The known driver that has some to handle by wireless far distance controlled.For example, announced a kind of heavy-curtain driving device 4,958, No. 112 by the United States Patent (USP) that zerillo proposes September 18 nineteen ninety.A stay cord is fixed on the valance bar that valance is installed, forms becket bridle with vertical and parallel draw bar.This heavy-curtain driving device has a pair of one pole-singly throw the limit switch of often opening the reed switch formula, can regulate the open and close position of this valance with changing.These switches are driven by heavy-curtain driving device, and these heavy-curtain driving devices then are on the position that the opened and closed positions with this valance adapts, and are fixed on the magnet on the above-mentioned vertical and parallel draw bar.When a limit switch made magnet be in the operating position, this switch closure formed circuit.Work as magnet movement, when leaving a switch, then switch will return back to open position, prevent that electric current from flowing to this switch outside and going.This magnet is with manually, regulates along above-mentioned pull bar, to adapt to the position of the desirable open and close of this curtain.When the curtain open and close, because the wearing and tearing of stay cord, this stay cord can stretch, and makes its relaxing a little.Then, for this curtain of open and close, must be along above-mentioned pull bar, this magnet of manual adjustments.For this switch of open and close, the position of magnet on vertical pull bar is subjected to the restriction of vertical pull bar length.Because the open and close position of this curtain is regulated by this magnet, therefore, these positions also are subjected to the restriction of pull bar length.The length of this pull bar must be the same long with this valance bar at least, and the curtain width on this valance bar or magnet will be run into to be positioned at and can not open fully and the locational switch of fully closed this curtain.Like this, this device is not suitable for long valance bar, and promptly wide window or the low wall covering of room ceiling are because at this moment the length of this vertical pull bar is shorter than the length of this valance bar, this can make magnet run into switch when curtain is not opened fully or be closed fully.
The United States Patent (USP) that April 3 nineteen ninety, people such as Hsieh proposed has been announced a kind of venetian blind controller that is used to control vertical venetian blind and utilizes the angle position of two independent Electric Machine Control blades for 4,914, No. 360.In this controller, each motor all has an electromagnetic clutch device, can carry out manual operation when outage.
The United States Patent (USP) that on January 4th, 1974, people such as McLean proposed has been announced a kind of electronic valance puller for 3,117, No. 767, and this puller has the housing of the belt pulley of a supporting motor driving.This housing and belt pulley are placed in the support slidably, so that can change the position of belt pulley, engage with the valance rope.
Wishing has a kind of electronic heavy-curtain driving device, and it does not need manually to adjust frequently driver, and regulating the opened and closed positions of valance, and it can be used to regulate the valance of window of different in width and the open and close position of wall covering.
Summary of the invention
So, in order to overcome or alleviate at least one shortcoming of prior art in fact, the invention provides a kind of heavy-curtain driving device with a torque drive switching device, this driver can be in the motor that two extreme positions (promptly open or close) all can automatically cut off heavy-curtain driving device at the valance rope.
According to a main aspect of the present invention, provide the heavy-curtain driving device of a curtain of a kind of open and close.Terminology used here " curtain " " valance " and/or " curtain " comprises curtain, the covering of vertical louver curtain and any other wall or window, or by a valance rope driving, the dividing plate that can between two positions (being generally the open and close position), move.The drive pulley that is provided with a housing and is supported by this housing, this belt pulley are connected this curtain when being used for operation a valance rope engages.In addition, also be provided with a motor, moment of torsion is provided, can this drive pulley of reverse rotation, so that make this valance rope, move up to primary importance, and on second rightabout, move to the second place in first party.First switch that is connected with this motor when also being provided with an operation.In addition, also be provided with the switching device of a torque drive.When this drive pulley made this valance rope move to primary importance, this switching device started first electric switch; And work as this drive pulley by the motor backward rotation, when making this valance rope move to the second place, this switching device is restarted this first electric switch, make when this valance rope moves to primary importance, this first electric switch can disconnect this motor, thereby prevents that this valance rope from further moving; And when this valance rope moves to the second place, make this first electric switch also disconnect this motor, thereby prevent this valance rope on second opposite direction, further motion.
The switching device of this torque drive comprises a clutch apparatus with first clutch disc and second clutch disc in first preferred embodiment, wherein, this second clutch disc can move to the position of skidding, with this first clutch sheet slippage engagement, start this first electric switch simultaneously.In this embodiment, this second clutch sheet can move to the position of skidding that contacts with this first electric switch from this first position of engagement along side direction (axially), will be towards the failure of current of motor.Prescribe a time limit when the moment of torsion that is passed to this clutch disc reaches, this second clutch disc moves to this slip locations from this first position of engagement.More particularly, in a further advantageous embodiment, wish that this second clutch disc can select adjustably in advance from the easy degree that this first position of engagement moves to this slip locations.This point for example, can accomplish that this spring can make this first clutch sheet biasing with adjusting, contacts with this second clutch sheet by using an adjustment spring.These characteristics can be used for this heavy-curtain driving device the different moment of torsion of needs curtain that open and close, that have different length easily.For example, when reaching (for example) fully closed position when curtain, slipping of clutch and motor are disconnected,, only need the low ability that transfers a torque to drive pulley for short and light curtain.Yet, the characteristics that can readjust have been guaranteed, under the very long and/or heavy situation of curtain, can adjust this clutch, make its can transfer larger torque, and, for making driver before at the extreme position position of complete closed curtain (open fully or) " unclamping ", can transmit bigger moment of torsion, the critical value that then needs higher moment of torsion to transmit.
In a preferred embodiment, the design of this first electric switch is such: when starting, this switch can cut off the electric current that flows to this motor, and make this current reversal, and when restarting, first electric switch like this can allow this motor of current direction, and the drive pulley that is connected with it when making this motor with operation rotates round about.In the preferred embodiment, for the design that makes this switch is easy, make the electric current energy oppositely, this motor adopts direct current generator.
In another alternative embodiment of the present invention, the switching device of this torque drive comprises first electronic circuit that is used to monitor the magnitude of current size that flows into this motor; When this first electric switch then detects this electric current above the critical value of determining earlier for being used to, and just disconnects this motor then, continues second electronic circuit that rotates in the direction that drives its rotation to prevent its.In a preferred embodiment of the invention, this second electronic circuit comprises a device that changes this critical value.Best, the device of the critical value of the necessary electric current of this motor " is unclamped " in this change, can make this heavy-curtain driving device be used to have different length curtain of (and weight), and with above at the described adjustment spring-like of selecting in advance of another embodiment seemingly.
Another main aspect, heavy-curtain driving device according to the present invention comprises a housing and a drive pulley that is supported by this housing, this belt pulley can engage with the valance rope that is connected with curtain in some way.This housing is also supporting a motor, is used for when wishing, makes this drive pulley counter-rotating, and this valance rope is moved between the primary importance and the second place.Generally, when described valance rope during in this primary importance, this curtain is opened fully, and when this valance rope during in the second place, this curtain is closed fully.During operation, first and second electric switches all are connected with this motor.The switching device of a torque drive cooperates with this drive pulley, makes that working as this first drive pulley moves to primary importance with this valance rope, and when this curtain was opened, this first electric switch started, and cuts off this motor; And work as this drive pulley by this driven by motor counter-rotating, and this valance rope is moved to the second place, in general, when making this curtain be in the position of complete closure, this second electric switch starts, and disconnects this motor.This motor can make this curtain move to thoroughly and open, thoroughly closure or centre position.The switching device of this torque drive is at curtain and thoroughly opens and thoroughly during closing position, can cut off this motor automatically, but curtain can be placed on the centre position.
Particularly, when drive pulley on first direction, when making this valance rope move to primary importance, (at this moment, this curtain generally is the position of opening fully), can utilize this first electric switch of switching device deactivation of this torque drive, make it disconnect this motor, and prevent that this valance rope is moved further again on first direction.When this motor reverse, and this drive pulley is on second rightabout, when making this valance rope move to the second place (at this moment, general this curtain is in complete closing position), can utilize this second electric switch of switching device deactivation of this torque drive, make it disconnect this motor, and prevent that this valance rope is moved further again on second direction.Correspondingly, of the present invention one main aspect, provide one to form by housing with by a drive pulley that this housing supports, be used to open and close the heavy-curtain driving device of a curtain.This drive pulley can engage with a valance rope.This driver also is provided with a motor, and moment of torsion can be provided, but makes this drive pulley de-rotation, makes this valance rope moving to primary importance on first direction and making this valance rope on second rightabout, moves to the second place.First and second electric switches that are connected with this motor when in addition, also being provided with operation.Also be provided with the switching device of torque drive, in order to start this first and second electric switches.Particularly, when this drive pulley makes this valance rope move to primary importance, can utilize this switching device to start first electric switch; And reverse when this motor makes this drive pulley, when making this valance rope move to the second place, this second electric switch of also recycling this switching device deactivation.Like this, when this valance rope moves to primary importance, can make this first electric switch disconnect this motor, thereby can prevent that this valance rope is in the further motion again of first direction; And when this valance rope moves to the second place, can make this second electric switch disconnect this motor, thereby can prevent that this valance rope is moved further on second direction.In this embodiment, the switching device of this torque drive is a drive arm, and it can and drive between the position of this second electric switch in the position that drives this first electric switch, pivots.
Generally, a pair of spaced-apart, can make sunshine pass through the curtain of the vertical curtain form of window, when in the fully open position, because the influence of the end of the pull bar of each curtain and curtain rod can not have been opened again.Equally, when curtain during in complete closing position, because corresponding curtain is to being close to mutually, this curtain can not be further closed again.This has just played the effect of curtain jack motion-restricting device.Because in case in first (opening) position or when second (closure) position, curtain can not move again, therefore, on these two extreme positions, provide by this motor, making this valance rope continue the required moment of torsion of motion is infinitely-great moment of torsion basically.Therefore, in a back preferred embodiment, when when operation, when the moment of torsion that this motor offers this drive pulley surpassed in advance the limit, this drive arm pivoted between first position and second position.In a further advantageous embodiment, the pivoting friction that produces between this drive arm and housing during by the change electric motor starting can be selected this moment of torsion adjustably in advance.When this valance rope moved to each position in these first and second positions, the moment of torsion that this curtain jack motion-restricting device can make this motor offer this drive pulley reached the predetermined upper limit.
Best, in above-mentioned all embodiment of the present invention, this heavy-curtain driving device comprises a device that can change this housing with respect to the installation site of area supported, so that adjust the tension force of this valance rope.In a preferred embodiment, this device comprise have a plurality of on straight line the area supported in hole spaced from each other so that can adjust position in the selecting hole of this housing in described hole.
Best in addition, this comprises a device that is used to change the position of this housing on this heavy-curtain driving device and device that area supported is connected, so that further change the tension force of this valance rope.In the preferred embodiment, this device comprises a helical thread, when rotating helical thread, this housing is moved with respect to area supported.
In addition, for this heavy-curtain driving device is carried out remote control, an acceptor circuit and remote controller are set preferably.
In sum, the invention provides a kind of heavy-curtain driving device that is used for the open and close curtain, it comprises: a housing; A drive pulley, it is supported by described housing, is used for engaging with a valance rope that is connected to described curtain; A motor, it is supported by described housing, is used to provide moment of torsion, but makes described drive pulley make de-rotation, make described valance rope move to primary importance and make described valance rope move to the second place along the second direction opposite with first direction along first direction; One first electric switch is connected with described motor during its work; One second electric switch is connected with described motor during its work; The switching device of torque drive, when described drive pulley moves to the described primary importance and the described second place with described valance rope, the switching device of above-mentioned torque drive started when the amount of the moment of torsion that is provided by described motor surpassed predetermined amount, it is used for starting described first electric switch when described drive pulley makes described valance rope move to described primary importance; And be used for working as described drive pulley by described driven by motor backward rotation, when making described valance rope move to the described second place, start described second electric switch, so that when described valance rope moves to described primary importance, described first electric switch cuts off described motor, thereby prevent that described valance rope from further moving, when described valance rope moves to the described second place, described second electric switch cuts off described motor, thereby prevents the further motion on described second direction of described valance rope.
The present invention also provides a kind of heavy-curtain driving device that is used for the open and close curtain, and it comprises: a housing; A drive pulley, it is supported by described housing, is used for engaging with the valance rope that is connected to described curtain; A motor, it is supported by described housing, is used to provide moment of torsion, but makes described drive pulley make de-rotation, make described valance rope move to primary importance and make described valance rope move to the second place along the second direction opposite with first direction along first direction; First electric switch is connected with described motor during its work; The switching device of torque drive, when described drive pulley moves to the described primary importance and the described second place with described valance rope, the switching device of above-mentioned torque drive started when the amount of the moment of torsion that is provided by described motor surpassed predetermined amount, it is used for starting described first electric switch when described drive pulley makes described valance rope move to described primary importance; And be used for when described drive pulley by described driven by motor backward rotation, when making described valance rope move to the described second place, start described first electric switch, so that when described valance rope moves to described primary importance, described first electric switch cuts off described motor, thereby prevent that described valance rope from further moving, when described valance rope moves to the described second place, described first electric switch cuts off described motor, thereby prevents the further motion on described second direction of described valance rope.
The present invention provides a kind of heavy-curtain driving device that is used for the open and close curtain again, and it comprises: a housing; A drive pulley, it is supported by described housing, and the valance rope that one described curtain is connected when being used for a job engages; A motor, it is supported by described housing, is used to provide moment of torsion, but makes described drive pulley make de-rotation, make described valance rope move to primary importance and make described valance rope move to the second place along the second direction opposite with first direction along first direction; First electric switch is connected with described motor during its work; The switching device of torque drive, when described drive pulley moved to the described primary importance and the described second place with described valance rope, the switching device of above-mentioned torque drive started when the amount of the moment of torsion that is provided by described motor surpassed predetermined amount.
Utilize example now, embodiments of the invention are described in conjunction with the accompanying drawings.
Description of drawings
Fig. 1 is the front elevation of heavy-curtain driving device according to an embodiment of the invention, and it is installed on the wall, and engages with a valance rope, and valance is at open position;
Fig. 2 is the front elevation of heavy-curtain driving device shown in Figure 1, and valance is in closing position;
Fig. 3 is the plane of heavy-curtain driving device shown in Figure 1, and it engages with the becket bridle of valance rope, and valance is at open position;
Fig. 4 is the top view that this valance rope on the direction is arranged shown in the arrow 4 of Fig. 3;
Fig. 5 is the perspective view of heavy-curtain driving device shown in Figure 1;
Fig. 6 is the partial side view of amplification of brake of the mounting bracket of heavy-curtain driving device shown in Figure 1;
Fig. 7 is the perspective view that takes off the heavy-curtain driving device of the Fig. 1 behind this mounting bracket;
Fig. 8 is the perspective view of the remote controller of heavy-curtain driving device shown in Figure 1;
The top view of the part of the heavy-curtain driving device that Fig. 9 is shown in Figure 1;
Figure 10 is the partial, exploded perspective view of the adjustable tension limiter of heavy-curtain driving device shown in Figure 1;
Figure 11 is the side view of the drive arm between two electric switches;
Figure 12 is the side view of this drive arm of contacting with two electric switches;
Figure 13 is the end portion of heavy-curtain driving device shown in Figure 1 and the perspective view that is connected of fore-end;
Figure 14 is the end portion of heavy-curtain driving device shown in Figure 1 is connected the pin of usefulness with fore-end a top cross-sectional view;
Figure 15 A, 15B and 16A, 16B are the schematic diagram of remote control circuitry shown in Figure 8;
Figure 17 A and 17B are the schematic diagram of the power control circuit of the motor of this heavy-curtain driving device of expression;
Figure 18 A and 18B are the schematic diagram with the corresponding acceptor circuit of remote control circuitry shown in Figure 15 A, 15B and 16A, the 16B;
Figure 19 is the partial top view according to another embodiment of heavy-curtain driving device of the present invention;
Figure 20 is the decomposition diagram that is used to drive the device of drive arm shown in Figure 19;
Figure 21 is the cross-sectional, top view of the adjustable tension limiter of heavy-curtain driving device shown in Figure 19;
Figure 22 is the partial side view of the wheel hub of adjustable tension limiter shown in Figure 21;
Figure 23 is the decomposition diagram of part of another embodiment of adjustable tension limiter;
Figure 24 is in heavy-curtain driving device shown in Figure 1, the partial cross-section top view of the part of the adjustable tension limiter of Figure 23;
Figure 25 is the schematic diagram of the torque drive switching device of this heavy-curtain driving device that has;
Figure 26 be Figure 25 to arrow " A " to view;
Figure 27 is the schematical top view of another kind of structure of the switching device of the expression torque drive similar to view shown in Figure 25;
Figure 28 is the end-view of first and second clutch disc of the heavy-curtain driving device shown in Figure 25 and 27;
Figure 29 is the principle electrical circuit of another embodiment of the switching device of torque drive, and it represents an electronic torque switch driven device.
The specific embodiment
At first, see figures.1.and.2, curtain 10 and 12 usefulness usual ways are installed on the root window curtain rod 14.A valance rope 16 is placed on this above curtain rod 14, and engages with curtain 10 and 12, and curtain 10 and 12 is installed on this curtain rod 14, near an area supported (for example, ceiling or wall 17).Each end at this curtain rod 14 disposes block 18.
In Fig. 1 and Fig. 2, a heavy-curtain driving device according to the present invention is represented with label 20.This heavy-curtain driving device 20 is fixed on the wall 17, engages near curtain 12 and with valance rope 16.The position of this heavy-curtain driving device 20 has no particular limits, and can change according to the wall space of distributing to curtain 10 and 12 each side.
Fig. 3 represents to be installed in another way the heavy-curtain driving device 20 on the wall 17.Shown in Fig. 3 and 4, this valance rope 16 engages with belt pulley 22, forms a becket bridle.Then, this heavy-curtain driving device 20 engages with this valance rope 16.
Referring to Fig. 5, this heavy-curtain driving device 20 has one and is essentially rectangular housing 24, and it can be made by any suitable material (for example plastics).This housing 24 comprises the end portion 26 and the fore-end 28 that have side 30.Fore-end 28 has top 29 and bottom (not shown).This heavy-curtain driving device 20 also comprises a support 32, is used for this heavy-curtain driving device 20 is installed in wall 17.This support 32 comprises an interior metal part 34 and outer plastic cover 36 and 38.Brake 40 can slide between lid 36 and 38, as shown by arrow A along the outside of this inner frame spare 34; And has a support 42 of a groove 44 by in this inner frame spare 34.
Between this support 42 and another are fixed on support 48 on this inner frame spare 34, placing a compression spring 46.This compression spring 46 assists this brake 40 is remained on this inner frame spare 34.Such as shown by arrow A, slidably brake 40 is when lid moves between 36 and 38 when this, and this supports 42 motions in groove 44.This support 32 is porose 50, is used for this support 32 (thereby also being this heavy-curtain driving device 20) is fixed on wall 17.The screw (not shown) can be screwed in the wall 17 by hole 50.
This support 32 also comprises a plurality of grooves 52, and they can hold a plurality of boss 54 (following discussion again) that are positioned on the end portion 26, as shown by arrow B.On each side 30 of this end portion 26, two boss 54 are arranged, they are installed in the corresponding groove 52 of support 32.As shown in Figure 5, when in boss 54 insertion grooves 52, this brake 40 engages with boss 54.This can be locked at this support 32 on this end portion 26.Those skilled in the art will appreciate that for this support 32 is connected with this end portion 26, can use the boss 54 and the groove 52 of any number.In order to make this boss and this end portion 26 can be placed on diverse location on this support 32, preferably the number of groove is more than the boss number.
With this boss 54 with this slidably brake 40 unclamp, this housing 24 can be taken off from support 32, as shown in Figure 7.Fig. 7 represents a tension force maintaining body 56 that is contained in this end portion 26.This tension force maintaining body 56 comprises a bar 58 with zigzag end 60.This tension force maintaining body 56 also comprises square 62 and 64 and the square 66 of L-shape.On this L-shape square 66 boss 54 discussed above is arranged.Bar 58 passes square 62, is screwed in the square 64, and is close to square 66.
Square 62 is fixed on the bar 68 and 70 on the both sides that are configured in bar 58. Bar 68 and 70 passes square 62,64 and 66, and inserts in the wall 72 of this end portion 26. Square 64 and 66 can slide along this end portion 26.Bar 68 and 70 passes the hole on the square 64, and promptly they are not screwed in the square 64.Compression spring 74 and 76 is installed in respectively around bar 68 and 70, promotes square 64 and leaves square 62.Block 78 motions of restriction square 64 on bar 58.
In order to operate this tension force maintaining body 56, this boss 54 is in the groove 52 of support 32, so that this housing 24 is remained in this support 32.This bar 58 can clockwise or rotate counterclockwise, to make square 64 towards square 62 or leave square 62 motion respectively.Simultaneously, square 66 also can or leave square 64 motions towards square 64.When being screwed in the square 64 owing to this bar 58, when making square 64 towards square 62 motions, this bar 58 promotes squares 66 and leaves square 64, towards wall 72 motions.Square 66 continues towards wall 72 motions, till block 78 is close to square 64.This can make this housing 24 slide along support 32.
This end portion 26 comprises an acceptor circuit, and it is driven by handheld cordless remote control transmitter shown in Figure 8 80.In a preferred embodiment, control module can use the radio signal of microwave frequency, also can use other signals, such as ultrasonic wave, radio and infrared signal perhaps use electric wire that this heavy-curtain driving device 20 is connected with a corresponding switch enclosure (not shown) rigidly.
Describe fore-end 28 in detail referring now to Fig. 9 and 10.This fore-end 28 has side 82 and 84.A reversible electric machine 86 is placed in this fore-end 28, near this end portion 26.In this embodiment, motor 86 is a direct current generator, but those skilled in the art will appreciate that this motor can be any suitable motor.Can use a corresponding electric adapter (not shown), this heavy-curtain driving device 20 is connected with a public alternating current output.Also can use battery to come to provide power to motor 86.
A worm gear 88 stretches out from motor 86, and meshes with gear 90.Gear 92 is with gear 90 revolutions, but the number of teeth of its gear ratio gear 90 is few.Gear 90 is near a drive arm 94.Drive arm 94 is essentially U-shape, and has the stage casing 100 of an arm 96,98 and a bending.Arm 96 and 98 porose (not shown)s, axle 102 inserts this hole, and freely rotates in the hole.Gear 90 and 92 rotates between the arm 96 and 98 of this drive arm 94 on the sleeve pipe 104 of axle 102.This sleeve pipe 104 can freely rotate on axle 102.
Axle 106 is placed between the arm 96 and 98 of drive arm 94, and planetary gear 107 turn round on axle 106 and mesh with gear 92.Another planetary gear 108 stretches out from planetary gear 107, and the number of teeth of gear ratio planetary gear 107 is few.Planetary gear 108 rotates with planetary gear 107.Planetary gear 108 and the gear that on axle 102, rotates 110 engagements.Lining 112 also stretches out from gear 107, and revolution with it, and is close to the arm 96 of drive arm 94, guarantees that gear 107 and 108 meshes with gear 92 and 110 respectively.
Rubber sheath 114 is fixed on the arm 96 of drive arm 94 and this arm 96 between the wheel hub 116.This rubber sheath 114 is and these wheel hub 116 common extensions that are placed on the axle 102.Another rubber sheath 115 is fixed on the arm 98 of drive arm 94.Wheel hub 116 has a hollow axle 118, and it can make axle 102 pass through, as Figure 10 the most clearly represents.This heavy-curtain driving device 20 has an adjustable tension limiter, generally represents with label 119.This adjustable tension limiter 119 has an interior wheel 120 in adjusting wheel 122, and this adjustment wheel 122 is placed on the axle 118.A compression spring 124 in axle 118 placed around.
On the side 84 of this heavy-curtain driving device 20, placing a trim 126, in order to cover three pins 128.Pin 128 extends from covering 126, by the hole 130 on the wheel 120 in this, and is close to wheel hub 116.Pin 128 leaves axle 118 1 segment distances, and they are equidistantly uniform each other around axle 118.Pin 128 can prevent that wheel hub 116 from rotating with respect to trim 126.The work of this adjustable tension limiter 119 will illustrate below.A drive pulley 132 is placed on the place of close sidewall 82, and fixing with sleeve pipe 134.Gear 110 also is fixed on the sleeve pipe 134, and this sleeve pipe can rotate around axle 102.Valance rope 16 embeds in this drive pulley 132.The size that one skilled in the art will appreciate that drive pulley 132 can suitably determine according to the desired use of heavy-curtain driving device 20.For example, if heavy-curtain driving device 20 will be used for the vertical louver curtain, then drive pulley 132 can be made and have suitably bigger groove, and perhaps this drive pulley 132 can have V-shape groove, so that it can be engaged with the valance rope of different-thickness.
In a preferred embodiment, the gear of this fore-end 28 can be made of plastics, with weight reduction and manufacturing cost.The number that should be appreciated that gear can change.In addition, as a kind of additional safety measure, fore-end 28 can be provided with a lid (not shown), to prevent meeting these gears unintentionally.
Figure 11 represents drive arm 94 and normal open switch 136 and 138, and Figure 12 is illustrated in the corresponding extreme positions that pivots in the range of movement, these drive arm 94 Closing Switch 136 and 138 situation.
This fore-end 28 can rotate 180 ° with respect to end portion 26 on the direction shown in Figure 13 arrow C.Specifically, the front end face 140 of this end portion 26 has a recess 142, and it roughly occupies 3/4ths around the circumference of the pin 144 that stretches out from this front end face 140.This pin 144 is having a groove 145 near its far-end.As shown in figure 14, being divided in the wall 72 of this pin 144 than large-diameter portion, and have a flange 143, flange 143 is installed in the annular recess of wall 72, this pin 144 can be remained in the wall 72.Electric wire 146 passes this pin 144, and acceptor circuit and motor 86 in this end portion 26 are coupled together.Fore-end 28 has a claw 148, and it cooperates with recess 142 can allow this fore-end 28 rotations.Pin 144 is packed into by a hole 150 in the fore-end 28.Annulus 152 is contained in the groove 145, and this end portion 26 is fixing with this fore-end 28, and can allow fore-end 28 motions.As mentioned above, bar 68 and 70 inserts in the wall 72.Annulus 147 and 149 is installed in around the groove 145 of bar 68 and 70, bar 68 and 70 can be remained on assigned position.
Figure 15 A, 15B and 16A, 16B represent the preferred circuit of the remote control transmitter 80 of heavy-curtain driving device 20.This wireless remote control transmitter 80 can be by existing element manufacturing in the city, such as, resistance 154, integrated circuit 156, transistor 158, diode 160, electric capacity 162, light emitting diode 164, battery 166, shift knob 168, attenuator (pad) 170 and coil 172.In order to set up a unique transmitter code, can be with several the coupling together of selecting among the attenuator 11-20.In order to set corresponding transmitter code, the attenuator 1-10 of Figure 18 B correspondingly can be coupled together.This can prevent that remote controller from transmitting a signal on undesirable heavy-curtain driving device 20.Figure 17 A, 17B and 18A, 18B represents to be contained in the preferred circuit of the corresponding acceptor circuit 179 in this end portion 26, it by with the used the same city of remote control transmitter on existing element and direct current jack (jack) 174, positive voltage regulators 176 and trolley head (header) 178 made, in order to corresponding power is provided for motor 86, make it in direction of advance and backward rotation.
The operation of these heavy-curtain driving device 20 open and close curtains describes with reference to Fig. 1-18B.
During operation, the support 32 of this heavy-curtain driving device 20 is installed on the area supported (for example wall 17), as Fig. 1, shown in 2,4.Heavy-curtain driving device 20 engages with valance rope 16.If necessary, fore-end 28 can rotate, with the box lunch this heavy-curtain driving device 20 be installed near this valance rope 16 local time, this valance rope 16 can be gone in the drive pulley 132 in the corresponding way.This heavy-curtain driving device 20 also can be installed on the upright position of wall 17, as shown in Figure 3 in the same way.
The housing 24 of this heavy-curtain driving device 20 can move to diverse location on support 32, embed in this drive pulley 132 under suitable tension force to guarantee this valance rope 16.The further tension of this valance rope 16 around this drive pulley 132 can utilize above-mentioned tension force maintaining body 56 to realize.Since after this valance rope 16 uses, can be elongated a little because of the stretch effects of wearing and tearing or this valance rope 16, and therefore, this tension force maintaining body 56 can keep the suitable joint between this valance rope 16 and this drive pulley 132.
When heavy-curtain driving device 20 correctly is installed on the wall 17, in the place of leaving these housing 24 certain distances, push the respective switch 168 on this remote controller 80, can starter motor 86.Acceptor circuit 179 receives the signal that sends from transmitter 80, and corresponding power is offered motor 86, and worm gear 88 is rotated, and worm gear driven gear 90 and 92 again rotates.Gear 92 and gear 107 engagements, therefore, the rotation of motor 86 makes gear 107 and 108 and rotate with gear 108 meshed gears 110.The rotation of gear 110 is rotated the drive pulley 132 that is connected with gear 110 by sleeve pipe 134.
When curtain 10 and 12 was opened to the position of opening fully shown in Figure 1, curtain 10 and 12 was run into block 18, stoped this valance rope 16 further to move.When reaching the tension force size of selecting in advance on valance rope 16, drive pulley 132 and gear 110 stop, and planetary gear 107 and 108 is rotated further.Adjust above-mentioned adjustable tension limiter 119 and can set the tension force size that this is selected in advance.Gear 107 and 108 rotates around gear 92 and 110, thereby makes this drive arm 94, pivots, and turns to electric switch 136.Then, this drive arm 94 is run into switch 136, and with its closure, motor 86 is stopped operating.
For closed curtain 10 and 12, can select a corresponding shift knob 168 on the remote controller 80, transmit signals to the acceptor circuit 179 in the housing 24.Receiver circuit 179 offers motor 86 with corresponding power, make gear with open curtain 10 and at 12 o'clock, the direction that the gear gyratory directions is opposite is rotated.When these drive pulley 132 these valance ropes 16 of coiling, during with curtain 10 and 12 closures, curtain 10 and 12 contacts with each other, and can stop this valance rope 16 further to move.Reach the tension force size of selecting in advance once more when this valance rope 16, when drive pulley 132 and gear 110 stopped operating once more, planetary gear 107 and 108 rotated around gear 92 and 110, and this drive arm 94 is pivoted, and contact and close switch 138, make motor 86 stop to change.According to curtain 10 and 12 and the size of curtain rod 14, arrange and weight different, and/or other factors, the setting of the tension force size that this is selected in advance can change, this is that those skilled in the art know, and can determine by rule of thumb when this heavy-curtain driving device 20 is installed.
The adjustment of this adjustable tension limiter 119 wheel 122 can rotate, to be compressed in the compression spring 124 between the wheel 120 and wheel hub 116 in this.This causes between this wheel hub 116 and the rubber sheath 114, and rubber sheath 115 ' and side 82 between friction increase.When this can increase this drive arm 94 and pivots between electric switch 136 and 138, the tension force size of valance rope 16, and reduce the speed that drive arm 94 pivots.Like this, can set the maximum tension of this valance rope 16 for desirable size.For long valance, must increase the tension force that this drive arm 94 bumps switch 136 and at 136 o'clock, otherwise, when curtain 10 and 12 closure or when not opening fully, this drive arm 94 is run into switch 136 and 138 prematurely, and motor 86 is stopped operating fully not also.In addition, if desired, can also handle this adjustment wheel 122, reduce the compression of compression spring 124, make, be about to motor 86 disconnections when curtain 10 and 12 during in the position that partially opens.
Can know that this heavy-curtain driving device 20 can be designed to have the tension force size of fixing preliminary election, and it is contemplated that, the tension force size in the time of this tension force can being selected than motor 86 stall is slightly smaller.Yet, when being preferably in curtain 10 and 12 and being in the open position, utilize above-mentioned guiding mechanism, set the decrement of curtain 10 and 12.
This heavy-curtain driving device 20 also has can make curtain 10 move to the device of different chosen positions with 12 along curtain rod 14.Can depress a respective switch 168 on the remote controller 80, and pin it, a signal is delivered to acceptor circuit 179 in this housing 24, motor 86 is started, but switch 136 and 138 be inoperative.When depressing this attenuator, this heavy-curtain driving device 20 makes this valance rope 16 and curtain 10 and 12 establish a direction motion.When loosening this control attenuator, the motion of this valance rope 16 stops, and like this, can select the position of curtain 10 and 12.The similar switch 168 of on the remote controller 80 another can rotate in opposite direction by making motor 86, and this valance rope 16 is moved in opposite directions, and at this moment depress switch 168, but switch 136 and 138 still is inoperative.Drive arm 94 will contact with 138 with switch 136, but because switch 136 and 138 is not worked, therefore, motor 86 can not stop automatically.
Remote controller 80 also has a switch 168, and it can work as this drive arm 94 when being between switch 136 and 138, stops the rotation of motor 86, so that whenever, after motor 86 work, prevent that this valance rope 16 is moved further.
Figure 19～22 expressions are according to another embodiment of heavy-curtain driving device 20 of the present invention.This heavy-curtain driving device 220 has the fore-end 222 and the end portion 228 that have side 224 and 226.In being connected on the basis of this above-mentioned fore-end 222 and end portion 228, this fore-end 222 can rotate 180 ° with respect to this end portion 228.Reversible dc motor 230 or general-purpose machine are placed on this fore-end 222, near end portion 228.Driving shaft 232 stretches out from motor 230, and its far-end has a drive pulley 234.
Belt 236 is connecting drive pulley 234 and drive pulley 238.If desired, drive pulley 234 also can be connected by two belts 236 with 238.Gear 240 stretches out from drive pulley 238.Drive pulley 238 and gear 240 rotate on sleeve pipe 242.Sleeve pipe 242 rotates on axle 244, and 244 on axle is inserted in this sleeve pipe 242, and passes the hole adjusted on the wheel 246 and the hole on the sidewall 224, enters in the adjustable tension limiter 250.This adjustable tension limiter is discussed below.
Gear 240 and gear 252 engagements, the number of teeth of the gear ratio gear 240 of gear 252 is many.Gear 254 stretches out from gear 252, and the number of teeth of its gear ratio gear 252 is few.Gear 252 and 254 rotates on axle 256, and axle 256 is fixed on from the side on 226 blocks that highlight 258.
Gear 254 and gear 260 engagements stretch out a gear 262 that gear ratio gear 260 numbers of teeth are few from gear 260.Gear 260 and 262 rotates on axle 244.Gear 262 and planetary gear 264 engagements stretch out the less planetary gear of another number of teeth 266 from the planet tooth.Planetary gear 264 and 266 rotates on axle 268, and axle 268 is fixed on the arm 270 and inwall 274 of a drive arm 272.Inwall 274 is between another arm 276 of arm 270 and drive arm 272.Arm 276 has an arcuate socket 278, can make this drive arm 272, in predetermined scope, pivots.
Gear 266 and gear 280 engagements.Gear 280 and drive pulley 282 are fixed on one on the sleeve pipe 284 that rotates on the axle 244.Drive pulley 282 is placed in 224 places, side near this fore-end 222, and engages with valance rope 16.The arm 276 of drive arm 272 is swung on axle 244, and simultaneously, arm 270 is swung on sleeve pipe 284.Rubber sheath 286 is fixed on the arm 270.Another rubber sheath 290 is fixed on the arm 276.
This heavy-curtain driving device 220 comprises an adjustable tension limiter 250.This adjustable tension limiter 250 comprises that is screwed in the wheel of the adjustment on the wheel 292 246 (Figure 21) in.Pin 294 should couple together with wheel hub 296 by interior wheel 292.This pin 294 can make wheel 292 in this towards wheel hub 296 or leave the direction motion of wheel hub, shown in the arrow D of Figure 21; But can prevent that wheel 292 rotates in this.Wheel hub 296 has one 298, and compression spring 300 and axle 298 coaxial settings.As shown in figure 22, the shape of wheel hub 296 is essentially clover-leaf shaped, and is contained in the clover-leaf shaped hole in the side 226, like this, wheel hub 296 can not rotate, but can be towards rubber sheath 290 with leave its direction, towards the side 226 or leave side 226 motions.
First lid 302 has a plurality of screws 304 around its circumference, they should cover 302 and be fixed on the adjustment wheel 246.
This adjustment wheel 246 has a flange 306.Second lid 308 can prevent that this adjustments from taking turns 246 and leaving from this heavy-curtain driving device 220.
During operation, the lid 302 of this adjustable tension limiter 250 is rotated in a first direction, and this makes this adjustment wheel 246 rotate, and 246 on this adjustment wheel can rotate along the axle 298 of wheel hub 296 should interior wheel 292.This compressible spring 300.The compression of spring 300 makes wheel hub 296 towards this rubber sheath 290 directions motion, therefore, make 224 motions of this rubber sheath 286 towards the side, friction on the arm 270 and 276 of increase drive arm 272, thus change so as to making this drive arm 272 in the tension force size of often opening the valance rope 16 that moves around pivot between electric switch 310 and 312.Should compression spring 300 be stretched the rotation round about of interior wheel 292, thereby make wheel hub 296 motions, and leave this rubber sheath 290, and reduce the friction on arm 270 and 276.This makes and to reduce so as to the tension force that makes the valance rope that this drive arm 272 pivots.
Can use same as mentioned above remote controller and acceptor unit, also can use the above-mentioned same circuit that is used for this control.Same as the previously described embodiments, a support and a tension force maintaining body also can be set, to change the tension force of this valance rope 16.
The operation of heavy-curtain driving device 220 when the open and close curtain being described referring now to Figure 19～22.During operation, this heavy-curtain driving device 220 is installed on the wall, as described above.As above for first embodiment described, this heavy-curtain driving device can comprise a support and a tension force maintaining body.
During operation, the support of this heavy-curtain driving device 220 be installed in an area supported such as, on wall or the ceiling.Drive pulley 282 engages with valance rope 16, and the valance rope engages with curtain.Can correspondingly adjust the tension force of valance rope 16.
Then,, press the respective switch on the pressure controller from these heavy-curtain driving device 220 a distance, can starter motor 230.Place a receiver of this heavy-curtain driving device 220, receive the signal from remote controller, and corresponding electric energy is supplied with motor 230,230 in motor rotates drive pulley 234, drives belt pulley 238 and gear 240 rotations by belt 236 again.Gear 252 and gear 240 engagements can make gear 252 and 254 rotate around axle 256 like this.Gear meshing driven gear 260,262,264,266 and 280 is again rotated.The rotation of gear 280 is rotated drive pulley 282, and belt pulley 282 is connected with gear 280 by sleeve pipe 284.Then, according to the rotation aspect of motor 230, can open or closed curtain.
When curtain arrive an extreme position such as, during the fully open position, this curtain is run into a block, stops further motion of valance rope 16.When this valance rope 16 reaches the tension force size of selecting in advance, drive pulley 282 and gear 280 slow-downs, slowly stop, and motor 230 is rotated further planetary gear 264 and 266, like this, gear 264 and 266 rotates around gear 280, and actuating arm 272 is rotated towards electric switch 310.Then, this drive arm 272 is run into switch 310, and closed it, motor 230 is stopped.
For closed curtain, can depress a corresponding switch on this remote controller, signal is sent to acceptor circuit in this heavy-curtain driving device 220.Motor 230 again with the gear rotation direction rightabout transmitting gear of opening curtain.When drive pulley 282 rotates curtain toward each other, during with closed curtain, curtain contacts with each other, and stops this valance rope 16 further to move.When this valance rope 16 reached the tension force size of selecting in advance once more, drive pulley 286 and gear 280 stopped operating, and planetary gear 264 and 266 is run into and close switch 312, and motor 230 is stopped operating.
The same with heavy-curtain driving device 20, this heavy-curtain driving device 220 also has makes this curtain move to the device of different chosen positions along curtain rod.
Figure 23 and 24 expressions can be used in another embodiment of an adjustable tension limiter 320 on heavy-curtain driving device 20 or 220 etc.This heavy-curtain driving device has a side 322.Lid 324 has a plurality of screws 325 around its circumference, they should cover 324 and be fixed on the adjustment wheel 326.In being screwed in, this adjustment wheel 326 takes turns on 328.On the interior wheel a square hole 330 is arranged, be used to lay a square piece 332.This piece 332 has a hole 334, can make an axle (for example axle 102 of the heavy-curtain driving device 20 of Fig. 9) by this piece 332.Around piece 332, placing a compression spring 336.This piece 332 is installed in the square hole 338 of flat board 340, and is fixed on this flat board 340.Dull and stereotyped 340 are installed in another piece flat board 342, and this plate 342 is close to the top and the bottom of heavy-curtain driving device, for example, and the top 29 of the heavy-curtain driving device 20 between the side 82 and 84 of the fore-end 28 of this heavy-curtain driving device 20 and bottom (not shown).
Figure 24 represents to be used in the embodiment of the adjustable tension limiter 320 in the heavy-curtain driving device 20 of Fig. 1.
During operation, lid 324 is rotated in a first direction.This makes that adjusting wheel 326 rotates, wheel 328 moved along square 332 in this was taken turns and makes, and make dull and stereotyped 340 rubber sheaths motions towards this heavy-curtain driving device 20, increasing the friction between this rubber sheath 114 and dull and stereotyped 340, thereby increase the tension force size of selecting in advance.Lid 324 rotation round about makes 336 elongations of compression spring, thereby reduces the friction between flat board 340 and the rubber sheath 114.
Another embodiment of Figure 25～28 expressions heavy-curtain driving device 400 of the present invention.It has the switching device of a torque drive, and this device only needs a single electric switch 424 that is assembled in the clutch drive (representing with 410).In this embodiment, the mechanism 410 that clutch drives comprises a torque drive or tension limiter 404, it comprises that again 440, one works of 405, one clutch shafts of a spring have the part 418 of spline, driven wheel 412,408, the second clutch disc 406 of first clutch disc, Pulley shaft 416,409, one drive pulleys 420 of a stable bearing and an electric switch 424.
With reference to above-mentioned two embodiment shown in Figure 25～27, these two embodiment contain of comprising a screw thread 432 and an axle 440 and adjust wheel 428.Adjust the single-piece that wheel 428 is preferably made by plastics or any other material that is fit to.Screw thread 432 meshes with the internal thread 430 of annulus spare 429.Adjusting wheel 428 gives prominence to outside housing 24.It is big that the device 404 of torque drive comprises that a diameter likens the part 418 of spline a little to, but than the little helical spring 405 of second clutch disc 406 and gear 412, its end withstands on to be done to have on the part 418 of spline, and the other end heads on second clutch sheet 406.Shown in Figure 25 and 27, during assembling, second clutch disc 406 can endwisely slip doing to have on the part 418 of spline.Like this, spring 405 produces a side force that acts on clutch disc 406, clutch disc 406 is pressed on the clutch disc 408, shown in Figure 25 and 26.
First clutch disc 408 can be connected with clutch shaft 416 regularly, as shown in figure 25, perhaps, can rotate on this axle, but not fixedly connected with clutch shaft 440, as shown in figure 26.In all embodiments, second clutch disc 406 slided.In a preferred embodiment, it slides along splined shaft 418, still, one skilled in the art will recognize that, if clutch disc 406 and/or clutch disc 406 then can reach result of the present invention with doing have the part 418 of spline to slide.First clutch disc 408 is made of arc pawl 456 and the lobate central protuberance 460 of clover of radial form.Second closes arc spike 464 (the see Figure 28) formation of device sheet 406 by radial manner, and this spike 464 is used for and pawl 456 complementary fit.Second clutch disc 406 (seeing Figure 28) also comprises a lobate central concave 468 of clover with lobate projection 460 complementations of clover.Should be appreciated that on each clutch disc 406,408, can use other lobate shape of different needle patterns, claw-like, clover or other clutch surface, and can not depart from scope of the present invention.
Describe embodiment shown in Figure 25 particularly now in detail.In this embodiment, quick gear 412 and 482, clutch disc 406 and 408 and to make to have the part 418 of spline all be around single axle 440 coaxial placements does not need to be permanently connected.
Be provided with motor 86, it makes fixed gear 412,416 by the rotation of gear 425, and quasi-planet gear 417,419 rotates (rotating in order) with gear 482 direct and that drive pulley 420 is connected with valance rope 16.
Be provided with the adjustment wheel 428 that is generally the annular knurl knob, be added in moment of torsion on this valance rope 16 to adjust by motor 86.In the time of on this adjustable torque limit, the switch 424 of this torque drive is worked by following mode: promptly it cuts off the electric current 100 that leads to motor 86, after this, when electric current 100 is supplied with motor 86 again, sets motor 86 it is rotated in an opposite direction.
In this embodiment of the present invention, by along making the direction of externally threaded annulus 429, rotate the way of adjusting wheel 428 to left movement (seeing Figure 25), can adjust the torque limit of (increase) heavy-curtain driving device of the present invention.Like this, can make spring 404 between second clutch disc 406 and annulus 429, be compressed tightlyer, thereby on clutch disc 406, produce bigger power, make between second clutch sheet 406 (movable) and first clutch disc 408 (crosswise fixed, and prevent transverse movement by fixing wall part 24) engagement stronger.
The mode of operation of this embodiment of the present invention is described in conjunction with Figure 25 and 26 now.
When curtain arrives extreme position (promptly opening fully or complete closing position), can prevent that this valance rope 16 from further moving, can prevent that so also drive pulley 420 and gear 419 from further rotating.Yet motor 86 is rotated further gear 425, gear 412 and gear 416.The spring force that is produced by spring 405 is not enough to prevent that first clutch disc 408 and quasi-planet gear 417 and 419 (each part all is installed on the planet arm 409) from doing planetary rotation round axle 440.The rotation of first clutch disc 408 is slided second clutch disc 406 vertically to the right, and contacts with switch 424,422 and 426 links together thereby will go between.Then, the electric current 100 of switch 424 sever supply motors 86 under the direct current generator situation, makes the current polarity of supplying with motor 86 reverse, and like this, when providing next remote signal and supply with motor 86 electric currents again, motor 86 can rotate round about.For example, if valance rope 16 makes curtain reach its extreme closing position, on this position, switch 424 " unclamps ", and this switch 424 (general technically for this purpose " trigger " formula switch that adopts), the electric current 100 of sever supply motor immediately in a manner described then, and make the polarity reversal of the DC current of supplying with motor.Then, when for example, send one when making the remote signal that curtain opens with a hand-held infrared projector, then electric current leads on the motor 86, and drive pulley 420 is rotated round about, and curtain is opened.Because in opening procedure, before reaching the fully open position, this curtain is not run into obstacle, therefore can not surpass the torque limit of clutch mechanism 410, and quasi-planet gear 417,419 keeps transfixion on planet arm 409.To directly be passed on gear 482 and the drive pulley 420 from the moment of torsion that motor 86 sends.
Equally,, and reach the position of opening fully, later on again at the volley owing to when reaching end of travel and running into resistance, said process takes place when curtain (promptly towards open position) motion round about.Particularly extreme at stroke, in the position of opening fully, should prevent that drive pulley 420 and gear 482 from rotating.Correspondingly, motor 86 makes planet arm 409, rotates around axle 440, makes second clutch disc 406 axially move right (seeing Figure 25).This axially moving right unclamped switch 424, cuts off the supply to the electric current 100 of motor 86.
The setting of adjusting wheel 428 is a kind of selection scheme that makes moment of torsion reach the size of the electric current 100 " cut-out " that can will lead to motor 86.These adjustment characteristics are useful, because the long curtain of length need be set the high torque limit, so that make motor 86 that enough big moment of torsion is passed to gear 482 and drive pulley 420, with the curtain open and close.Yet, at curtain light or window size hour, moment of torsion can be set lowlyer.Set torque limit low more, motor 86 needs the merit of work more little, and electrical machinery life is just long more.
In order to reduce the tension force that tension limiter 404 provides, wheel 428 is rotated in second direction, make screw thread 432 reverse and screw thread 430 engagements, annulus 429 is moved vertically, leave second clutch disc 406, thereby can reduce bullet effect power thereon.When spring 405 unclamps, can clutch disc 406 can be pressed against on the clutch disc 408 with less power.Therefore, in order to produce slippage between clutch disc 406 and 408, only need less moment of torsion, this can reduce starting switch 424 and cut off the required moment of torsion of motor 86.
In this embodiment, gear 482 and spline part 418 the two do not fixedly connected this point with axle 440 very important.In a preferred embodiment, though gear 482,416,412 and clutch disc 408 all can freely be rotated around axle 440, they are not fixedlyed connected with axle 440, and spline part 418 is not fixedlyed connected with axle 440 yet.In another embodiment, a part in these parts can be fixedlyed connected with axle 440.
Embodiment shown in Figure 27 is described now.Easy in order to reference, the label of part shown in Figure 25 still keeps in same part shown in Figure 27.
Identical with the embodiment shown in Figure 25 and 26, Figure 27 represents the design of a heavy-curtain driving device 400, and it has the switch 424 of a torque drive, in the time of can reaching capacity at the moment of torsion of motor 86, cuts off the electric current 100 of flow direction motor 86.
In this embodiment, for simplicity, only represented two gears 412 and 425,, can also require to reduce again gear although as is generally known.Understanding the whole shooting match of wanting required for the present invention is, turning power is reached by a gear or reduction gearing 425 to 412 by motor 86.In the first aspect of this embodiment of the present invention (aspect " a "), gear 412 inner works have spline, make it carry out spline engagement with the part 418 of making spline, make gear 412 motion that is in axial sliding on the part 418 of making spline.Spline can prevent that gear 412 from rotating with respect to spline part 418.The part 418 of making spline is fixedlyed connected with second clutch disc 406.Therefore, aspect this of present embodiment, clutch disc 406 and spline part 418 can be done axially-movable with respect to gear 412, and because the effect of spring 405, gear 412 is pressed on the annulus 429.
In the second aspect of present embodiment (aspect " b "), gear 412 is fixedlyed connected with spline part 418.Second clutch disc 406 inner work has spline, can carry out spline engagement with spline part 418, particularly, can be in axial sliding on spline part 418.Spline can prevent that second clutch 406 from rotating with respect to spline part 418.
In aspect two of the present invention, be provided with and adjust wheel 428, can adjust spring 405 and act on second spring force on the clutch disc 406, therefore, can adjust the clutch mechanism 410 that comprises first clutch disc 408 and second clutch disc 406, continue to be passed to the upper torque limit of the moment of torsion on drive pulley 420 and the heavy-curtain driving device 16.
In the embodiment shown in Figure 27, first clutch disc 408 directly is connected with axle 416, and axle 416 is gone into the position by bearing 409 and framework 24 supportings, and moment of torsion can be passed to drive pulley 420.Spline part 418 can be installed regularly or freely, so that around axle 440 revolutions; But axle 440 be identical with axle 416 or with situation that axle 416 is connected under, this spline part 418 is mounted freely on the axle 440, rather than fixedly connected, so that can rotate around axle 440.
Be provided with one and be co-axially mounted on the spline part 418, but the annulus 429 that can freely rotate relative to the spline part.Annulus 429 has external screw thread 430, can mesh with the internal thread of adjusting on the wheel 428 432.The gyration of adjusting wheel 428 makes the annulus move left and right, and gear 412 is done corresponding motion.Gear 412 contacts with spring part 405, therefore, can make to act on second power increase or minimizing on the clutch disc 406.These characteristics can allow to adjust the allowance of the moment of torsion of clutch mechanism 410 and torque drive device 404 drive pulley that is passed to 420.Roller bearing 431 can be set, can reduce the friction between the gear 412 that keeps actionless annulus 429 and rotate.
Should be noted that owing to when annulus 429 rotates, make gear 412 do axially-movable, gear 412 must have enough width, to guarantee in the whole transverse movement scope of annulus 429, with reduction gearing 425 eternal contacts, thereby the driving energy that guarantees to rotate often passes to gear 412.This two aspects " a " and " b " to this enforcement of the present invention is correct.
Be provided with electric switch 414 with lead-in wire 422 and 426.This switch is electronics " trigger " switch that technical known a kind of pressure starts.This switch is placed very close to second clutch disc 406, so that make torque driving mechanism 404 actions of the present invention, this names a person for a particular job and describes in detail below.
At first, adjust this adjustment wheel 428, set desirable torque limit.This limit is can be enough high, opening fully or closed fully with convenient curtain, or when reaching desirable " stopping " position, motor 86 just " unclamps " in mode described here; But also can set lowlyer, make when reaching described position, and in certain, also can " do not dragged " time, disconnect motor 86 immediately.
When curtain reaches this extreme position (for example, closed fully position), prevent that this valance rope 16 from further moving, thereby also can prevent drive pulley 420 and clutch disc 408 motions.Motor 86 continues by reduction gearing 425 moment of torsion to be passed to gear 412, and gear 412 is used for rotating clutch disc 406.Thereby, clutch disc 406 is rotated, but the spring force that spring 405 produces is little, only reaches when relative with Immobile first clutch disc 408, the level of the moment of torsion that motor 86 is produced is so that prevent axial (to the right) motion (aspect " a ") of clutch disc 406; Or the axially-movable (aspect " b ") of clutch disc 406 and spline part 418.The positive displacement that causes by crossing the respective surfaces structure 456 on clutch disc 408 at the last a series of staggered finger-like composition 468 that produces of clutch disc 406 (seeing Figure 28) makes clutch disc 406 and spline part 418 move right.Because this moving right of forcing, clutch disc 406 contacts with switch 424.Then, switch 424 is worked by above-mentioned mode, the electric current 100 of sever supply motor 86.
Figure 29 has represented to be assembled in another embodiment of a torque drive switching device of the present invention in the electronic torque switch driven circuit 500.In this embodiment, torque drive switch of the present invention comprises a circuit 500, and this circuit comprises 510, one electrical switchgears 502 forward of a power supply again, the torque drive device 508 of 506, one electronics of a reverse electrical switchgear and a motor 86.The axle of motor 86 is connected with belt pulley 504, still can adopt any suitable gear drive of 504 from motor 86 to belt pulley.
Electronic torque drive unit 508 is first electronic circuits of the size of current of monitoring inflow or outflow motor 86.Electrical switchgear 512 is second electronic circuit, is used to detect when electric current connects with electronic torque drive unit 508 and switching device 502,506 above predetermined critical value and when operating.Electronic tensile restraint device 514 is any devices that are fit to that are used to regulate the predetermined critical value of driving switch device 512, for example, and a variable resistor.
The work of the electronic torque driving switch circuit 500 of present embodiment is described referring now to former explanation and Figure 28.Curtain is in the position of opening fully.Electronic tensile restraint device 514 is to adjust like this, requires before starting electronic torque switch driven 512 certain threshold of an electric current to be sent into motor 86.Use any proper device, closed electronic switching device 502 forward feeds motor 86 with electric current, and actuating motor 86 rotates drive pulley 504.The electronic torque drive unit detect to flow into the electric current of motor 86, and the electric current of this size is sent to electronic switching device 512.In the closed procedure process, electric current is reduced to below the critical value, and electronic switching device 512 is inoperative.
When arriving extreme closing position, curtain is run into block, stops valance rope 16 to continue motion.Drive pulley 504 and motor 86 are decelerated to and stop, and like this, produce short circuit in the winding of motor 86.So the electric current that flows into motor 68 increases, until surpassing the critical value electric current, thereby start electronic switching device 512, open electronic switching device 502 forward and motor 86 is stopped.
When opening curtain, curtain is from extreme closing position.Electronic tensile restraint device 514 is to adjust like this, requires before starting electronic torque driving switch 512, with the electric current feeding motor 86 of a certain threshold.Utilize any proper device, closed inversion electron switching device 506 makes electric current flow into motor 86, is opening direction drive motor 86, makes drive pulley 504 backward rotation.The electronic torque drive unit detects the electric current that flows out from motor 86, and this magnitude of current is sent into electronic switching device 512.In the opening operation process, electric current is below critical value, and electronic switching device 512 is inoperative.
When arriving extreme open position, curtain is run into a block, stops further motion of valance rope 16.Drive pulley 504 and motor 86 are decelerated to and stop, and form short circuit in the winding of motor 86.So the electric current that flows out from motor 86 increases, the critical value until surpassing electric current like this, has started electronic switching device 512, has opened inversion electron switching device 508, and motor 86 is stopped operating.
In order to increase the tension force that is provided with by the electronic tensile restraint device, press first direction and adjust electronic tensile restraint device 514, increase the critical value of electric current.Therefore, start the required current critical value of electronic switching device 512, need bigger moment of torsion in order to trigger.
For the tension force that reduces to be provided with by the electronic tensile restraint device, adjust electronic tensile restraint device 514 by second direction, current critical value is reduced.Therefore, start the required current critical value of electronic switching device 512, need less moment of torsion in order to trigger.
Should be appreciated that this heavy-curtain driving device can have a plurality of drive pulleys and engage with a valance rope or many valance ropes.
Though, above declarative description the preferred embodiments of the present invention, should understand, the present invention is not the concrete example that is confined to these.Those skilled in the art can carry out many variations and remodeling.

Claims (38)

1. heavy-curtain driving device that is used for the open and close curtain, it comprises:
Housing;
Drive pulley, it is supported by described housing, is used for engaging with a valance rope that is connected to described curtain;
Motor, it is supported by described housing, is used to provide moment of torsion, but makes described drive pulley make de-rotation, makes described valance rope move to first end and make described valance rope move to second end along the second direction opposite with first direction along first direction;
First electric switch is connected with described motor during its work;
Second electric switch is connected with described motor during its work;
It is characterized in that, also comprise:
The switching device that comprises the torque drive of drive arm, described drive arm can rotate around pivot between the primary importance and the second place, described drive arm is used for moving to described first when terminal when described drive pulley makes described valance rope, starts described first electric switch; And be used for working as described drive pulley by described driven by motor backward rotation, make described valance rope move to described second when terminal, start described second electric switch, so that when described valance rope moves to described first when end, described first electric switch cuts off described motor, thereby prevent that described valance rope from further moving, when described valance rope moves to described second when terminal, described second electric switch cuts off described motor, thereby prevents the further motion on described second direction of described valance rope.
2. heavy-curtain driving device as claimed in claim 1 is characterized in that, described drive arm, and the described moment of torsion that offers described drive pulley at described motor reaches in limited time, pivots between the described primary importance and the described second place.
3. heavy-curtain driving device as claimed in claim 1 is characterized in that described housing comprises acceptor circuit, is used to receive the signal from the described motor of driving of remote controller.
4. heavy-curtain driving device as claimed in claim 1 is characterized in that, described heavy-curtain driving device starts rigid connection of electric switch of described motor with lead and at least one.
5. heavy-curtain driving device as claimed in claim 1 is characterized in that, described motor is a direct current generator.
6. heavy-curtain driving device as claimed in claim 1 is characterized in that, described motor is a reversible electric machine.
7. heavy-curtain driving device as claimed in claim 1 is characterized in that, described motor is installed on the area supported that has a mounting bracket.
8. heavy-curtain driving device as claimed in claim 7 is characterized in that it also comprises adjusting device, is used to change the position of described drive pulley, so that adjust the tension force of described valance rope.
9. heavy-curtain driving device as claimed in claim 7 is characterized in that, described area supported is a wall.
10. heavy-curtain driving device as claimed in claim 7 is characterized in that, described area supported is a ceiling.
11. heavy-curtain driving device as claimed in claim 8 is characterized in that, described housing has and changes described housing and the described drive pulley position with respect to described mounting bracket, thereby can change the device of described valance rope tension.
12. heavy-curtain driving device as claimed in claim 8, it is characterized in that, described housing comprises a fore-end and an end portion, and described drive pulley and described motor are supported by described fore-end, and, described end portion has and changes described housing and the drive pulley position with respect to described mounting bracket, thereby changes the device of the tension force of described valance rope.
13. heavy-curtain driving device as claimed in claim 8 is characterized in that, described mounting bracket has the relative position of the described housing of change on described area supported, thereby changes the device of described valance rope tension.
14. heavy-curtain driving device as claimed in claim 8, it is characterized in that, described housing can make described support engage with in a plurality of positions any one selectively, changing the position of described housing with respect to described area supported, thereby changes described valance rope tension.
15. heavy-curtain driving device as claimed in claim 12 is characterized in that, described fore-end is installed in rotation on the described end portion.
16. heavy-curtain driving device as claimed in claim 15 is characterized in that, described fore-end rotates 180 degree with respect to described end portion.
17. heavy-curtain driving device as claimed in claim 2 is characterized in that, the described upper limit is to adjust, and selects in advance.
18. heavy-curtain driving device as claimed in claim 17 is characterized in that, by change the pivoting friction that produces when the described electric motor starting between described drive arm and described housing, the described upper limit can be adjusted ground and select in advance.
19. heavy-curtain driving device as claimed in claim 2 is characterized in that, it also comprises:
The curtain jack motion-restricting device, it is when described valance rope is in described first when terminal, prevent the further motion on described first direction of described valance rope, and be in described second when terminal when described valance rope, prevent that described valance rope from further moving on described second direction;
When described valance rope moves in described first and second ends one when terminal, the described moment of torsion that described curtain jack motion-restricting device makes described motor supply with described drive pulley reaches the described upper limit.
20. a heavy-curtain driving device that is used for the open and close curtain, it comprises:
Housing;
Drive pulley, it is supported by described housing, is used for engaging with the valance rope that is connected to described curtain;
Motor, it is supported by described housing, is used to provide moment of torsion, but makes described drive pulley make de-rotation, makes described valance rope move to first end and make described valance rope move to second end along the second direction opposite with first direction along first direction;
First electric switch is connected with described motor during its work;
It is characterized in that, also comprise:
The switching device that comprises the torque drive of drive arm, described drive arm can rotate around pivot between the primary importance and the second place, described drive arm is used for moving to described first when terminal when described drive pulley makes described valance rope, starts described first electric switch; And be used for when described drive pulley by described driven by motor backward rotation, make described valance rope move to described second when terminal, start described first electric switch, so that when described valance rope moves to described first when end, described first electric switch cuts off described motor, thereby prevent that described valance rope from further moving, when described valance rope moves to described second when terminal, described first electric switch cuts off described motor, thereby prevents the further motion on described second direction of described valance rope.
21. heavy-curtain driving device as claimed in claim 20 is characterized in that, described housing comprises acceptor circuit, is used to receive the signal from the described motor of driving of remote controller.
22. heavy-curtain driving device as claimed in claim 20 is characterized in that, electric the going up of described heavy-curtain driving device is connected with at least one electric switch that starts described motor.
23. heavy-curtain driving device as claimed in claim 20 is characterized in that, described motor is a direct current generator.
24. heavy-curtain driving device as claimed in claim 23 is characterized in that, described first electric switch cuts off the electric current of flow direction motor, and makes current reversal when starting; Make that described first electric switch can make the current direction motor, and motor is rotated round about when starting once more.
25. heavy-curtain driving device as claimed in claim 20 is characterized in that, described driver also has a mounting bracket, and described mounting bracket is used for described driver is installed in an area supported.
26. heavy-curtain driving device as claimed in claim 25 is characterized in that, described housing has a position that changes described housing and described drive pulley with respect to described mounting bracket, thereby changes the device of described valance rope tension.
27. heavy-curtain driving device as claimed in claim 25, it is characterized in that, described housing comprises a fore-end and an end portion, described drive pulley and described motor are supported by described fore-end, described end portion has a position that changes described housing and drive pulley with respect to described mounting bracket, thereby changes the device of described valance rope tension.
28. heavy-curtain driving device as claimed in claim 25 is characterized in that, described mounting bracket has the relative position of the described housing of change on described area supported, and changes the device of described valance rope tension.
29. heavy-curtain driving device as claimed in claim 25, it is characterized in that, described housing engages selectively with on described mounting bracket any one in a plurality of positions, changing the position of described housing with respect to described area supported, thereby changes the tension force of described valance rope.
30. heavy-curtain driving device as claimed in claim 25 is characterized in that, described fore-end is installed in rotation on the described end portion.
31. heavy-curtain driving device as claimed in claim 30 is characterized in that, described fore-end rotates 180 degree with respect to described end portion.
32. heavy-curtain driving device as claimed in claim 20 is characterized in that, it also comprises:
The curtain jack motion-restricting device, it is when described valance rope is in described first when terminal, prevent the further motion on described first direction of described valance rope, and be in described second when terminal when described valance rope, prevent that described valance rope from further moving on described second direction;
When described valance rope moves in described first and second ends one when terminal, the described moment of torsion that described curtain jack motion-restricting device makes described motor supply with described drive pulley reaches the described upper limit.
33. heavy-curtain driving device as claimed in claim 20, it is characterized in that, the switching device of described torque drive comprises a clutch apparatus with first clutch disc and second clutch disc, described second clutch disc has one first position of engagement, be used for and described first clutch disc coupling engagement, also have the position of skidding in addition, be used for and described first clutch disc slippage engagement, and drive described first electric switch simultaneously.
34. heavy-curtain driving device as claimed in claim 33 is characterized in that, described second clutch disc is laterally, make described first position of engagement slide into the described position of skidding, in this position, second clutch disc contacts with first electric switch, cuts off the electric current that flows to described motor.
35. heavy-curtain driving device as claimed in claim 33 is characterized in that, reaches in limited time when being sent to moment of torsion on described first and second clutch disc, described second clutch disc moves to the described position of skidding from described first position of engagement.
36. heavy-curtain driving device as claimed in claim 34 is characterized in that, described second clutch disc can be adjusted from the easy degree that described first position of engagement moves to the described position of skidding, and selects in advance.
37. a heavy-curtain driving device that is used for the open and close curtain, it comprises:
Housing;
Drive pulley, it is supported by described housing, is used for engaging with the valance rope that is connected to described curtain;
Motor, it is supported by described housing, is used to provide moment of torsion, but makes described drive pulley make de-rotation, makes described valance rope move to first end and make described valance rope move to second end along the second direction opposite with first direction along first direction;
First electric switch is connected with described motor during its work;
It is characterized in that, also comprise:
The switching device of torque drive, comprise first electronic circuit, be used for the magnitude of current of monitoring stream to described motor, described first electric switch is second electronic circuit, be used for detecting when described electric current surpasses predetermined critical value, cut off described motor afterwards again it no longer is rotated further on the direction of its rotation.
38. heavy-curtain driving device as claimed in claim 37 is characterized in that, described second electronic circuit also comprises the device that changes described critical value.
CNB99100325XA 1998-10-21 1999-01-21 Heavy-curtain driving device Expired - Fee Related CN1195438C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US09/176,092 US6144177A (en) 1996-08-27 1998-10-21 Drapery actuator
US09/176,092 1998-10-21
US09/176092 1998-10-21

Publications (2)

Publication Number Publication Date
CN1251285A CN1251285A (en) 2000-04-26
CN1195438C true CN1195438C (en) 2005-04-06

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CNB99100325XA Expired - Fee Related CN1195438C (en) 1998-10-21 1999-01-21 Heavy-curtain driving device

Country Status (2)

Country Link
CN (1) CN1195438C (en)
CA (1) CA2252347C (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1042054B1 (en) 2016-09-15 2018-03-22 Wander Beetstra Msc Kaj Adjustable, retrofit, easy to attach, curtain con-trolling device.

Also Published As

Publication number Publication date
CA2252347C (en) 2001-08-07
CN1251285A (en) 2000-04-26
CA2252347A1 (en) 2000-04-21

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