CN103298379A

CN103298379A - Improved motorized window shade mechanism

Info

Publication number: CN103298379A
Application number: CN201280005360XA
Authority: CN
Inventors: 拜伦·R·诺尔斯
Original assignee: AEROSPACE TECHNOLOGIES GROUP Inc
Current assignee: AEROSPACE TECHNOLOGIES GROUP Inc
Priority date: 2011-01-13
Filing date: 2012-01-13
Publication date: 2013-09-11
Also published as: WO2012097211A1; CA2824059A1; BR112013018072A2; EP2665395A4; EP2665395A1; US20140048219A1

Abstract

Provided is a motorized window shade assembly for controlling an amount of light through a porthole. A spring roller is positioned by a first side of the porthole and has a torsion spring for imparting a rotating force to the spring roller. A shade is supported by the spring roller and has a first end fixed to the spring roller and a second end extendable over the porthole. A shade actuator is connected to the shade, the shade actuator having one or more of a pulley and cable for moving the second end of the shade across the porthole. A motor assembly is positioned proximate a second side of the porthole, the motor assembly having a motor which receives operating power from a power source. The motor is releasably coupled to the shade actuator for selectively supplying motor-controlled operation to the shade actuator.

Description

Improved motor-driven window shade

Background of invention

1. technical field

The present invention relates to a kind of motor-driven window light shield device that is specially adapted to aircraft windows, this assembly is easy to assembling and installation, user-friendly and handling safety is reliable.More specifically, the present invention relates to a kind of improved motor-driven window light shield device for aircraft, provide to be used under no electric situation, as when emergency takes place, opening the device of window window-blind in the assembly.

2. background technology

Disclosed motor-driven window light shield device is the significant improvement to known at that time other devices of this type in the US Patent No. 6186211.For example, it has reduced required number of elements fruitfully, has increased reliability, also satisfies and used aboard relevant rigidity requirement.Disclose the further improvement to the window shade in the U.S. Patent application that application number is 12/943569, the applying date is on November 10th, 2010, its disclosed content is incorporated this paper by reference into.

When aircraft generation emergency, in some cases, may cause losing cabin power, need land in an emergency, and motor-driven window window-blind can't be operated.Therefore, any window window-blind that launches (namely closing or shading) position that is in partially or completely will remain on this position and can not easily open.Though passenger or crew can force window-blind to its open position by applying manpower, this action may cause some component wear in the light shield device.In addition, have some aviation rules, require before aircraft safety hatch and/or emergency escape slideway are opened, the crew must carry out visual confirmation to the external environment condition of aircraft.Therefore, as when the situation that loses cabin power takes place, need the crew of aircraft to have that the window-blind that makes motor-driven light shield device is raised up to open position and the ability of not damaging each element in the light shield device.

Summary of the invention

An object of the present invention is to provide improved motor-driven window light shield device.

Another object of the present invention is, is provided for the motor-driven window light shield device of aircraft, has manual control function, need not to use under the situation of external power, allows window-blind to move to the position of opening (namely not stopping light).

Another purpose of the present invention is, is provided for the motor-driven window light shield device of aircraft, have two can electronic expansion window-blind, under the situation that hand control switch starts, two window-blinds can be simultaneously move to open position from closed position wholly or in part.

According to one aspect of the invention, relate to the tracker action for operation window window-blind, wherein the window window-blind is used for control from the light quantity that aircraft windows sees through, and can realize these and other purpose.Tracker action comprises, is suitable for stretching or being retracted to from torsionspring roller bar the window window-blind of torsionspring roller bar, torsionspring roller bar next-door neighbour's aircraft windows or porthole and arrange.The window light shield device comprises motor, the runner coupling that described motor and motor drive.Between the runner and second runner that hawser drives around motor, second runner is fixed on the housing away from first runner, preferably, is fixed to the end of torsionspring roller bar.With the element of the guide edge of window window-blind coupling, by the guiding of bar assembly, the motor that drives runner by hawser response motor drives the action of rotating, and stretches or the window window-blind of withdrawing to cross window.Torsionspring roller bar is installed in a side (as the top) of aircraft windows, and motor is installed in an other side (as the bottom).Motor is installed in the cam retainer that is connected with hand switch movably.The startup of switch makes motor leave the cam retainer, under the effect of the mechanical energy that stores in the torsionspring roller, allows window-blind to move to its closed position.

According to an aspect of the present invention, the motor-driven window light shield device that is used for controlling the light quantity that sees through the interior porthole of panel is disclosed.The window light shield device comprises, the window-blind that is set to be close to the flexible roller of porthole first side, is supported by flexible roller, and the window-blind actuator that is connected with window-blind, wherein flexible roller has the torsionspring that applies revolving force to flexible roller, window-blind has first end that is fixed to flexible roller and can cross porthole and second end that stretches, the window-blind actuator has one or more runners and hawser, is used for crossing second end that porthole moves window-blind.Light shield device further comprises motor sub-assembly, be set to be close to porthole second side, motor sub-assembly has the motor that receives work energy from power supply, motor is coupled with the window-blind actuator releasedly, be used for optionally providing to the window-blind actuator operation of motor control, wherein when the coupling of motor and window-blind actuator and work energy are supplied to motor, second end of window-blind is optionally crossed porthole and is stretched and withdraw from porthole.Light shield device also comprises the hand-operating device that is connected with motor sub-assembly, when releasing device starts, this device causes motor and window-blind actuator to break away from coupling, when wherein if second end of window-blind is in position away from flexible roller, under the revolving force effect, second end of window-blind is withdrawn towards flexible roller, and when device did not start, motor was coupled with the window-blind actuator again.

Description of drawings

Fig. 1 is the front view that comprises the window light shield device of motor-driven window shade according to the embodiment of the invention.

Fig. 2 is the front view of window light shield device among Fig. 1, and wherein the fabric of window-blind is removed.

Fig. 3 is the right side view of the light shading fabric volume of window light shield device among Fig. 1.

Fig. 4 is the sectional view of Fig. 1 4-4 along the line when dissecing.

Fig. 5 is the sectional view of Fig. 1 5-5 along the line when dissecing.

Fig. 6 is the CD-ROM drive motor used in the window light shield device among Fig. 1 and the top perspective close up view of manual releasing assembly.

Fig. 7 is the side view that is used for the motor mount of installation CD-ROM drive motor according to the embodiment of the invention.

Fig. 8 is the vertical view of Fig. 7 motor installation component, has drawn to manually boot switch.

Fig. 9 is the stereogram of window light shield device among Fig. 1.

Figure 10 shows the stereogram of motor installation component.

The specific embodiment

With reference to Fig. 1, Fig. 2 and Fig. 3, window light shield device 1 is installed on the aircraft side plate with porthole 3, and assembly comprises window window-blind 5,7.By the operation of respective motors, window-blind can cross porthole 3 and move, and enters the light quantity of porthole with control.Window-blind comprises the opaque window-blind 5 that is made of opaque long-pending thing and the pleated curtain 7 that is made of translucent long-pending thing, even it is not whole that opaque window-blind 5 stops, at least most light enters in the porthole, and allows part light transmission porthole when window-blind 7 is crossed porthole and stretched in the expection mode.

Pleated curtain 7 is made by the gauffer material of any known type that is generally used for the window window-blind, as fabric etc., for example can be compressed to the height less than half inch tightly, thereby it occupies the space of next-door neighbour's porthole 3 of minimum, so that the visual field that has no to hinder to be provided, and allow light fully unimpededly to see through porthole.As shown in Figure 3, pleated curtain has zigzag cross section, and first end or stiff end are connected with window-blind bearing 50.The movable bar member 25 of second end of pleated curtain 7 or leading end and motor control is attached, and movable bar member 25 is set to, and in mode described below, is used for crossing porthole 3 and stretches or shrink window-blind 7.

Be provided with pilot hole near the left side edge of pleated curtain 7 and the right side edge, left side window-blind alignment line 52(Fig. 3) and right side window-blind alignment line (not shown among Fig. 3) pass these holes and arrange, to guarantee that when window-blind stretched or compress, the gauffers in the window-blind 7 alignd exactly.Each alignment line is fixed to first on the window-blind bearing 50 and is anchored point 53 and is arranged on the second contiguous anchor point 54(of CD-ROM drive motor referring to Fig. 2), as being described in further detail hereinafter.

Except pleated curtain 7, translucent window-blind also comprises the support fabric that is arranged between pleated curtain 7 and the porthole 3, as the translucent fabric (hereinafter referred to as " phantom fabric ") of non-fold." the translucent window-blind " of Ying Yonging comprises pleated curtain 7 and phantom fabric 9 in this article.First end of phantom fabric 9 or stiff end and flexible roller 70(Fig. 3) attached, in any known mode, attached as passing through bonding agent or fixture.Second end of phantom fabric or leading end engage with movable bar member 25 with the leading end of pleated curtain 7, make when operate as normal, and according to the action of bar member 25, pleated curtain and phantom fabric will cross porthole 3 simultaneously and stretch and withdrawal.

Bar member 25 with application number be that the similar mode of guide rod of the device drawing and illustrate in 12/943569 the U.S. Patent application is worked.For example, bar member 25 remains between left side frame member and the right side frame member (47 among Fig. 1,49), and with the synchronous hawser 63(that is driven by motor 69 referring to Fig. 6) attached, motor 69 is started by user operable switch." making progress " on the selector switch thus key will cause motor to drive synchronous hawser rises guide rod 25-compress pleated curtain 7 simultaneously and cause phantom fabric 9 to twist on the flexible roller 70 with first direction." downwards " key on the selector switch will cause motor to drive synchronous hawser 63 in the opposite direction, make the pleated curtain stretching, extension and the phantom fabric is launched from flexible roller 70.

Flexible roller 70 comprises torsionspring, when torsionspring is strained, applies a torque to flexible roller, with " making progress " or open direction bias voltage phantom fabric 9, that is, phantom fabric 9 is rolled at flexible roller.Flexible roller 70 is worked in the similar mode of accepted standard window-blind roller unit in the common family expenses curtain, wherein, as long as the free end of the window-blind material that has tightening force to be applied to be connected with roller unit, or roller unit is locked in addition in case spline when moving, and the window-blind material will remain on its extended position.But if shade is unlocked or removes the free-ended power of light screening material that is applied to, torsionspring will cause light screening material to be rolled around roller unit.

Opaque window-blind 5 has the stiff end attached with second flexible roller 72, and second flexible roller 72 is arranged on flexible roller 70(Fig. 3) top, and have dislocation slightly with flexible roller 70.The mode that first end of opaque window-blind 5 or stiff end are can be arbitrarily known is attached on the flexible roller 72, as by bonding agent or fixture.Second end of opaque window-blind or leading end are fixed to movable bar member 25a(referring to Fig. 2), make that when operate as normal according to the action of bar member 25a, opaque window-blind 4 will cross porthole 3 and stretch and withdrawal, and will be similar with bar member 25 working methods.

At first at the operation of translucent window-blind 7, wheel shaft or rotating shaft 33 are configured to be inserted in the through hole of movable bar member 25.Illustrate best in Fig. 2 and Fig. 4, the two ends of wheel shaft 33 are outstanding from the bar member, but make their carrier gears.A this gear is labeled as gear 35, with tooth bar 46 engagements in the left side frame member 47.Another gear (not shown in the drawings, be designated gear 37 in application number is 12/943569 U.S. Patent application) meshes with tooth bar 48 in the right side frame member.Each gear also is connected with supporting body.Particularly, initiatively supporting body 36 is arranged on around the gear 35, and driven supporting body 38 is arranged on around the right side gear.For example by hold-down

screw

80,81, the two ends of hawser 63 are attached to initiatively supporting body 36 synchronously, and stride across motor driven wheel 126(Fig. 6) and runner 64 and extending, gear 126 is driven by motor 69, and runner 64 is installed in opaque window-blind flexible roller bar 72(Fig. 9) left end.When motor 69 work, motor will be by engaging with runner 126 and engages with synchronous hawser 63, and the engagement by gear 35 and tooth bar 46, runner 126 will move active supporting body 36, and cause translucent window-blind to move.Because by the wheel shaft 33 in the bar member 25, initiatively be connected between supporting body 36 and the driven supporting body 38, when active supporting body 36 is driven, driven supporting body 38 will move relative to tooth bar 48 by right side gear.

Also be provided with the similar operation arrangement for opaque window-blind 5, except motor 69a adopts synchronous hawser 63a, directly drive the active supporting body 44 that is arranged in the right side tooth bar 48, initiatively supporting body 44 is by the axle in the bar member 25a and driven supporting body 42 couplings, cause mobile indirectly with the driven supporting body 42 of left side tooth bar 47 engagements outside.In being 12/943569 U.S. Patent application, application number illustrates in greater detail, each driven supporting body is provided with each synchronous hawser 5(63,63a) pass it and the clear opening that extends, for example, make the motor 63 that moves for the translucent window-blind of control not cause opaque window-blind to move, vice versa.

With reference to Fig. 4 and Fig. 5, as mentioned above, be used for active supporting body 36 and the driven supporting body 38 of opaque window-blind 5 and translucent window-blind 7, be set to move along common a pair of tooth bar 46,48.Can be contemplated that the control that two window-blinds can be separate.For example, but starter 69 makes translucent window-blind cross porthole 3 and stretch, but then starter 69a so that opaque window-blind partly (or fully) cross porthole.But, share the public tooth bar of a cover because be used for the supporting body of two window-blinds, and in tooth bar, the supporting

body

42,44 of opaque window-blind is arranged on translucent window-blind supporting

body

36,38 top, is configured to have elongated area 45 so be used for the supporting

body

42,44 of opaque window-blind.The size of elongated area is set to, and makes them may extend in the gap of the active supporting body 36 of translucent window-blind and driven supporting body 38 back.This feature illustrates in Fig. 5 best, and the leading end of opaque window-blind 5 is fixed to elongated area 45, thereby two window-blinds all may spread to mutual next-door neighbour's distance.If there is not elongated area 45, the leading end of opaque window-blind 5 can't extend to the vertical position identical with translucent window-blind 7.

With reference to Fig. 1, Fig. 2, Fig. 6 to Figure 10, describe according to the manual shade of the embodiment of the invention.In normal working conditions, the movement of each window-blind is by separately

motor

69,69a control.In the embodiment shown, when selecting the appropriate functional switch, as " make progress " " downwards ", motor 69 is controlled translucent window-blind 7(with the phantom fabric 9 of connection) movement.Similarly, motor 69a controls the movement of opaque window-blind 5.In mode as known in the art, working power is supplied to motor from the aircraft power supply bus, and has in more detail in application number is 12/943569 U.S. Patent application and describe.

Drawn the motor sub-assembly with mount pad 100 and motor 69 in the mode of feature among Fig. 6, Fig. 7, Fig. 8 and Figure 10.Be understandable that, also be provided with the similar motor sub-assembly that has for the mount pad of motor 69a.For clarity sake, unless otherwise stated, only discuss the motor sub-assembly with mount pad 100 hereinafter.Mount pad 100 comprises, connects by slot, slidably the translational table 102 that engages with fixed supporting seat 104.Fixed supporting seat comprises be used to the one or more through holes 103 that hold fixture 101, so that mount pad 100 and under(-)chassis member 51(Fig. 2) be connected.

Gear supporting seat 110 is set to for to framing component 47 rotating shaft 130 being installed.Rotating shaft 130 is connected with runner 126 with pair of bearings gear 120,121.Runner comprises for the groove 127 that receives synchronous hawser 63, makes the rotation of rotating shaft 130 cause rise and the whereabouts of translucent window-blind.Motor 69 allows motor to rise and fall translucent window-blind with the coupling of rotating shaft 130.This coupling is finished by rotator seat 125 is set in rotating shaft 130.Be installed on the motor mount 100 at motor 69, particularly, be mounted on the translational table 102 after, the front of motor is received by the jut 106 of translational table.Jut comprises through hole 108, and the rotor 128 of motor passes this hole (referring to Fig. 2) and extends, and makes that in normal working conditions rotor 128 is contained in the rotator seat, with operation runner 126.

As shown in Figure 7 and Figure 8, translational table 102 has slot 112, and slot is arranged on fixed supporting seat 104 interior tops for the chamber 105 that holds helical spring 114.Contact point (" X ") on the relative translational table 102 of a helical spring end and grappling, another contact point on the other end butt fixed supporting seat 104 (" Y ").Spring 114 is towards runner shaft 130 bias voltage translational tables 102, so that rotor 128 is installed in the rotator seat 125.

Illustrated as mentioned, in normal working conditions, electric power makes that to motor 69,69a power supply motor will be by way of expectations, rises or fall translucent window-blind 7 and opaque window-blind 5 when the user starts gauge tap on the employing aircraft.Having a power failure, or motor-driven light shield device breaks down, thereby and window-blind launch at porthole-hinder to see that aircraft external environment condition time-window-blind must be able to be back to their open position so that the external environment condition of aircraft is as seen.According to the present invention, by passive device such as switch 150 are provided, this can realize.Suppose that passive switch can touch by the through hole on the aircraft panel, after light shield device is installed in panel.For example, the startup of device 150 can be by finishing inserting in the through hole as taper instruments such as pins, with starting drive 150.

Illustrate best in Fig. 6 and Fig. 8, device 150 comprises and starts surface or " button " 151, and it preferably can insert suitable instrument with the direction shown in the arrow " B " and touch by passing front panel.Device 150 comprises that also an end is connected with switch 150, and pair of cams arm 152,152a that the other end is connected with corresponding pivotal mount 154,154a.Each cam arm comprises, is used for receiving anchor 156, the 156a of connection cable 118 1 ends.The other end of connection cable 118 is anchored into the actuation arm 116 that is formed on translational table 102 1 ends at 119 places.Connection cable 118 can be by any proper standard line or belt, or the connector of other types makes, as long as it can be used as intended purposes, gets final product with above-mentioned expection mode travelling carriage 102.Switch 150 also comprises the cover plate 160(Fig. 6 as dust cap), prevent that in addition cam arm 152,152a are obstructed.

In the common environment of motor-driven window light shield device 1, translucent and opaque window-blind may completely or partially launch to cross porthole 3 and stretch.As described above, when window-blind stretched, they launched from their

flexible rollers

70,72 separately by the movement of synchronous hawser 63,63a.The expansion of window-blind has increased the spring tension in the flexible roller, as known in the

art.Motor

69,69a are specially designed, wherein, in rotor 128 is installed in runner shaft 130 and motor when being in " closing " state, i.e. non-selected up/down switch, the elasticity tensions in the

flexible roller

70,72 are not enough to cause rotor to rotate.If not so, when being in " cutting out " state, motor will cause the involuntary rise of window-blind.But, be understandable that, for heavier window-blind and/or the motor of other types, but the brake application device, so that window-blind remains on their desired deployment positions.

Under the situation that the power of operation light shield device is eliminated, or during other faults of light shield device, can make window-blind be retracted into its fully open position by starting switch 150.This finishes by apply power with arrow B direction shown in Figure 8 on button 151.Starting switch causes cam arm 152 to rotate (with counterclockwise).This rotation causes connection cable 118 to move along direction shown in the arrow C, and the elastic force that impels translational table 102 to overcome spring 114 moves with direction C.

When translational table 102 moved, rotor 128 became and rotator seat 125 disengagings.In case break away from, the tension force of flexible roller 70 intort springs will cause translucent window-blind 7 to twist on its flexible roller 70.Thereby expose porthole 3.Particularly, flexible roller 70 will be rolled phantom fabric 9 and cause the compression of bouffancy window-blind.Be understandable that the rise of opaque window-blind 5 takes place in a similar manner, rotate in a clockwise direction by cam arm 152a and cause opaque window-blind 5 to be rolled at flexible roller 72.

It is pointed out that switch 150 is passive, i.e. " machinery " switch starts and need not any electric power.Therefore, by the tension force of the torsionspring of storage in each

flexible roller

70,72, the window-blind that this switch allows to launch rises.Also it is pointed out that (typically less than several seconds) after the time that switch 50 need be compressed to specified quantitative, make rotor 128 keep shifting out from rotator seat 125, be retracted into the position of above porthole, opening fully until window-blind.In case after switch 150 discharged, under the effect of spring 114, platform 102 was retracted into position shown in Figure 7 again, motor 69 and runner shaft 130 couplings, thus normal motor-driven window-blind operation can recover.

Claims

1. motor-driven window light shield device is used for control and sees through the light quantity that is formed on the porthole in the panel, and described porthole has first side and second side, and described motor-driven window light shield device comprises:

Flexible roller is close to described first side of described porthole and arranges, and has be used to applying the torsionspring of revolving force to described flexible roller;

Window-blind is supported by described flexible roller, and has first end that is fixed to described flexible roller and can cross described porthole and second end that stretches;

The window-blind actuator is connected with described window-blind, and described window-blind actuator has one or more runners and hawser, moves for described second end that makes described window-blind and crosses described porthole;

Motor sub-assembly, be set to be close to described second side of described porthole, described motor sub-assembly has the motor that receives work energy from power supply, described motor is coupled with described window-blind actuator releasedly, be used for selectively providing to described window-blind actuator the operation of motor control, wherein when the coupling of described motor and described window-blind actuator and work energy are supplied to described motor, the described second end alternative of described window-blind is crossed described porthole and is stretched and from described porthole withdrawal; And

Hand-operating device, be connected with described motor sub-assembly, between the described device starting period, described device breaks away from described motor and described window-blind actuator, if wherein described second end of described window-blind is positioned at the position away from described flexible roller, under the effect of described revolving force, described second end of described window-blind is withdrawn towards described flexible roller, and wherein when described device is stopped using, described motor and described window-blind actuator are coupled again.

2. motor-driven window light shield device according to claim 1, wherein said motor sub-assembly comprises translational table and spring, described spring makes described motor be in the position of the described window-blind actuator operation of control along towards described of the direction bias voltage of described window-blind actuator.

3. motor-driven window light shield device according to claim 2, wherein said device comprises and described actuation arm that is connected, be used for moving described along the direction away from described window-blind actuator, break away from coupling to cause described motor and described window-blind actuator.

4. motor-driven window light shield device according to claim 3, wherein said device further comprises cam arm.

5. motor-driven window light shield device according to claim 3, wherein said panel is the aircraft panel, described first side of wherein said porthole comprises the top of described porthole, and second side of wherein said porthole comprises the bottom of described porthole.

6. motor-driven window light shield device according to claim 1, wherein said window-blind comprises gathered web and phantom fabric, described phantom fabric is arranged between described porthole and the described gathered web, and first end of wherein said window-blind comprises first end of described phantom fabric.

7. motor-driven window light shield device according to claim 6, wherein said gathered web and described phantom fabric comprise trnaslucent materials.

8. motor-driven window light shield device according to claim 3, wherein said window-blind comprises gathered web and phantom fabric, described phantom fabric is arranged between described porthole and the described gathered web, and first end of wherein said window-blind comprises first end of described phantom fabric.

9. motor-driven window light shield device according to claim 8, wherein said flexible roller comprises first flexible roller, described window-blind comprises first window-blind, described window-blind actuator comprises the first window-blind actuator, and described motor sub-assembly comprises first motor sub-assembly, and described light shield device further comprises:

Second flexible roller is close to described first flexible roller;

Second window-blind is supported by described second flexible roller, and has first end that is fixed to described second flexible roller and can cross described porthole and second end that stretches;

The second window-blind actuator is connected with described second window-blind, and the described second window-blind actuator has one or more runners and hawser, moves for described second end that makes described second window-blind and crosses described porthole;

Second motor sub-assembly, be close to described second side of described porthole and arrange, described second motor is coupled with the described second window-blind actuator releasedly, wherein when the coupling of described second motor and the described second window-blind actuator and work energy are supplied to described second motor, the described second end alternative of described second window-blind is crossed described porthole and is stretched and from described porthole withdrawal; And

Wherein said hand-operating device is connected with described second motor sub-assembly, described device makes described first motor and described second motor break away from coupling with their the first window-blind actuator and second window-blind actuators separately respectively, if wherein described second end of described first window-blind and described second window-blind lays respectively at away from they first flexible rollers separately and the position of second flexible roller, under the effect of corresponding revolving force, second end of described first window-blind and described second window-blind is respectively towards they first flexible roller and withdrawals of second flexible roller separately, and wherein when described device was stopped using, described first motor and described second motor were coupled again with their window-blind actuators separately respectively.

10. motor-driven window light shield device according to claim 9, wherein second window-blind comprises opaque material.

11. motor-driven window light shield device according to claim 9, wherein said manual start device comprise for the contact surface of the tool engagement of exerting pressure.

12. improved motor-driven window light shield device, be used for control and see through the light quantity that is formed on the porthole in the panel, described porthole has first side and second side, described motor-driven window light shield device has described first side that is close to described porthole and the flexible roller that arranges, window-blind by described flexible roller support, the window-blind actuator that is connected with described window-blind, the motor that reaches described second side of the described porthole of next-door neighbour and arrange, described flexible roller has be used to applying the torsionspring of revolving force to described flexible roller, described window-blind has first end that is fixed to described flexible roller and can cross described porthole and second end that stretches, described window-blind actuator has be used to described second end that makes described window-blind and moves one or more runners and the hawser that crosses described porthole, described motor receives work energy from power supply, and described improvement comprises:

Translational table, be mounted to described motor, be used for described motor and described window-blind actuator are coupled releasedly, be used for optionally providing to described window-blind actuator the operation of motor control, wherein when the coupling of described motor and described window-blind actuator and work energy are supplied to described motor, the described second end alternative of described window-blind crosses that described porthole extends and from described porthole withdrawal; And

Hand-operating device, be connected with described translational table, at described releasing device between the starting period, described releasing device moves described translational table, be used for making described motor and described window-blind actuator to break away from coupling, if wherein described second end of described window-blind is positioned at the position away from described flexible roller, under the effect of described revolving force, described second end of described window-blind is withdrawn towards described flexible roller, and wherein when described device was stopped using, described motor and described window-blind actuator were coupled again.

13. improved motor-driven window light shield device according to claim 12 further comprises spring, along towards described of the direction bias voltage of described window-blind actuator, makes described motor optionally remain on the position of the described window-blind actuator operation of control.

14. improved motor-driven window light shield device according to claim 13, wherein said device comprises the actuation arm that is connected with described translational table, be used for moving described along the direction away from described window-blind actuator, so that described motor and described window-blind actuator break away from coupling.

15. improved motor-driven window light shield device according to claim 14, wherein said device further comprises cam arm.

16. improved motor-driven window light shield device according to claim 15, wherein said panel is the aircraft panel, and described first side of wherein said porthole comprises the top of described porthole, and second side of wherein said porthole comprises the bottom of described porthole.

17. improved motor-driven window light shield device according to claim 12, wherein said window-blind comprises gathered web and phantom fabric, described phantom fabric is arranged between described porthole and the described gathered web, and first end of wherein said window-blind comprises first end of described phantom fabric.

18. improved motor-driven window light shield device according to claim 15, wherein said window-blind comprises gathered web and phantom fabric, described phantom fabric is arranged between described porthole and the described gathered web, and first end of wherein said window-blind comprises first end of described phantom fabric.