Curtain and actuation system thereof

Abstract

An actuation system for a window covering includes a drive shaft having a longitudinal axis and pivotally coupled with a shaft adapter such that the drive shaft and the shaft adapter are pivotable about the longitudinal axis, a brake assembly including a brake, a rotator pivotable about the longitudinal axis, and a shift ring configured to couple and decouple the rotator with the brake, wherein the shift ring is transitioned from a decoupled position to a coupled position in response to rotation of the rotator in a first direction and is transitioned from the coupled position to the decoupled position in response to rotation of the rotator in a second direction opposite the first direction, and a clutch configured to couple and decouple the shaft adapter with the rotator, the clutch having a clutch actuator pivotable about the longitudinal axis, the clutch actuator operable to cause the clutch to transition between a clutch coupled state and a clutch decoupled state.

Description

Technical Field

[0001] This invention relates to curtains and their actuation systems. Background Technology

[0002] Some curtains on the market use a control cord to raise the bottom of the curtain and a rod to lower it. More specifically, the control cord can be pulled to drive a rotating component to pivot, and the rotation of the rotating component is transmitted to a drive shaft, causing the drive shaft to pivot and wind up the hanging cord connected to the bottom. When the user rotates the rod, it causes the brake coupled to the rod to release the drive shaft, causing the drive shaft to pivot, and the bottom can move downwards due to gravity.

[0003] In the aforementioned types of curtains, when the rotating component and drive shaft rotate to pull up the bottom, the braking force of the braking component may create resistance on the drive shaft. Therefore, the user must overcome the braking force to pull up the bottom, making the operation more strenuous. Summary of the Invention

[0004] One object of the present invention is to provide a curtain and an actuation system suitable for the curtain, which can reduce internal friction and make the actuation system easy to operate with less force.

[0005] According to one embodiment, the actuation system includes: a drive shaft having a longitudinal axis and pivotally coupled to a shaft mating member, such that the drive shaft and the shaft mating member are pivotable about the longitudinal axis; a brake assembly including a brake, a rotating member pivotable about the longitudinal axis, and a transfer ring configured to couple and decouple the rotating member from the brake, wherein the transfer ring changes from a decoupled position to a coupled position in response to rotation of the rotating member in a first direction, and changes from a coupled position to a decoupled position in response to rotation of the rotating member in a second direction opposite to the first direction; and a clutch configured to couple and decouple the shaft mating member from the rotating member, the clutch having a clutch actuator pivotable about the longitudinal axis, the clutch actuator being operable to cause the clutch to switch between a clutch coupled state and a clutch decoupled state.

[0006] According to one embodiment, when the clutch is in a clutch coupling state, the clutch actuator can pivot synchronously with the shaft coupling member and the rotating member.

[0007] According to one embodiment, when the transfer ring is in the coupled position and the clutch is in the clutch coupled state, the shaft mating member and the drive shaft are prevented from pivoting in the first direction.

[0008] According to one embodiment, the transfer ring is coupled to the brake, and the transfer ring is movable relative to the brake along the longitudinal axis between a coupled position and a decoupled position, wherein the transfer ring engages with the rotating member in the coupled position and disengages from the rotating member in the decoupled position.

[0009] According to one embodiment, the transfer ring slides in contact with the brake via at least one inclined surface provided on the transfer ring or the brake.

[0010] According to one embodiment, the brake includes a brake engagement member and a brake spring, the brake spring being disposed around the brake engagement member, and the transfer ring slidingly contacting the brake engagement member.

[0011] According to one embodiment, the clutch further includes a clutch element coupled to the rotating element and movably connected to the clutch actuator. The clutch actuator is pivotable to cause the clutch element to engage and disengage with the shaft coupling element. The clutch element engages with the shaft coupling element in the clutch coupled state and disengages from the shaft coupling element in the clutch discoupled state.

[0012] According to one embodiment, the shaft coupling has a sleeve portion with a plurality of inwardly protruding teeth on its inner wall, and the clutch can engage with any one of the plurality of protruding teeth in the clutch coupling state.

[0013] According to one embodiment, the actuation system further includes: a first operating device and a second operating device; and a transmission assembly configured to selectively couple the first operating device or the second operating device to the clutch actuator; wherein: when the second operating device is decoupled from the clutch actuator, the first operating device can be operated to cause the clutch actuator to pivot, thereby changing the clutch from a clutch engaged state to a clutch disengaged state; and when the first operating device is decoupled from the clutch actuator, the second operating device can be operated to cause the clutch actuator to pivot, thereby changing the clutch from a clutch disengaged state to a clutch engaged state.

[0014] According to one embodiment, when the transfer ring is in the coupled position, the first operating device can be operated to cause the clutch actuator to pivot, thereby changing the clutch from a clutch coupled state to a clutch discoupled state, thereby allowing the shaft coupling member and the drive shaft to pivot relative to the rotating member and the brake in a first direction.

[0015] According to one embodiment, the second operating device can be operated to cause the clutch actuator to pivot, thereby changing the clutch from a clutch disengaged state to a clutch engaged state, and the rotating member can thereby pivot synchronously with the shaft mating member and the drive shaft in a second direction, thereby changing the transfer ring from an engaged position to a disengaged position.

[0016] According to one embodiment, the first operating device includes a bar, and the second operating device includes a lifting actuation module, which includes a drum and an operating member connected to each other, the drum being pivotable in a winding direction to wind up the operating member and pivotable in an extension direction to extend the operating member.

[0017] According to one embodiment, the transmission assembly includes: a first gear and a second gear meshing with each other; a first clutch member movable to engage or disengage with the first gear to couple or decouple the first operating device from the clutch actuator; and a second clutch member movable to engage or disengage with the second gear to couple or decouple the second operating device from the clutch actuator.

[0018] According to one embodiment, the second clutch is movable to engage or disengage with a plurality of teeth provided on the second gear, the plurality of teeth being configured to cause the second clutch to move away from the second gear in response to rotation of the second gear caused by operation of the first operating device.

[0019] According to one embodiment, the second gear is pivotally locked to the clutch actuator, such that the second gear and the clutch actuator can pivot synchronously about the longitudinal axis.

[0020] According to one embodiment, the first operating device includes a bar that is movably connected to the first clutch, the bar being operable to cause the first clutch to move and engage with the first gear.

[0021] According to one embodiment, the bar is slidable or pivotable to cause the first clutch to move and engage with the first gear.

[0022] According to one embodiment, the bar can be moved from an initial state to an actuated state to cause the first clutch to move and engage with the first gear, and the actuation system further includes a bias spring configured to assist the first clutch in disengaging from the first gear.

[0023] According to one embodiment, the second operating device includes a lifting actuation module comprising a reel and an operating member connected to each other, wherein the reel is movably connected to the second clutch member, and the reel is pivotable in a winding direction for winding the operating member and in an extension direction for extending the operating member.

[0024] According to one embodiment, rotation of the drum in the extension direction causes the second clutch to engage with the second gear, while rotation of the drum in the winding direction causes the second clutch to disengage from the second gear.

[0025] In addition, the present invention also provides a curtain, comprising: a top rail, a movable rail, and a shielding structure disposed between the top rail and the movable rail; a winding unit mounted on the top rail, the winding unit being connected to the movable rail via a suspension member; and the actuation system, wherein the drive shaft is pivotally coupled to the winding unit, the drive shaft being pivotable in a first direction to lower the movable rail, and pivotable in a second direction to raise the movable rail. Attached Figure Description

[0026] Figure 1 A perspective view of a curtain provided according to an embodiment of the present invention is shown.

[0027] Figure 2 Draw Figure 1 A 3D diagram showing the movable track in the curtains moving down from the top track.

[0028] Figure 3 An exploded view of the control module in the actuation system for curtains is shown.

[0029] Figure 4 Draw Figure 3 A partial cross-sectional view of the control module.

[0030] Figure 5 and Figure 6 Draw them separately Figure 3 Exploded and sectional views of a portion of the brake assembly and clutch in the control module.

[0031] Figure 7 Draw a plan view showing the clutch in clutch coupling state.

[0032] Figure 8 Draw a plan view showing the clutch in the disengaged state.

[0033] Figure 9 A magnified 3D view of a portion of the control module is shown.

[0034] Figure 10 An exploded view showing the configuration of the brake assembly, clutch, and transmission assembly.

[0035] Figure 11 and Figure 12 A partial sectional view is shown illustrating the assembly and operation of the clutch mechanism used to couple and decouple the operating device from the clutch.

[0036] Figure 13 A partial sectional view illustrating the assembly and operation of another clutch element used to couple and decouple another operating device from the clutch.

[0037] Figure 14 and Figure 15 The drawing is shown as an unfolding. Figure 1 A diagram illustrating the operation of the curtains.

[0038] Figure 16 and Figure 17 The drawing is shown as a pull-up. Figure 1 A diagram illustrating the operation of the movable track for the curtains.

[0039] Figure 18 An exploded view of a control module provided in an actuation system for curtains according to another embodiment is shown.

[0040] Figure 19 and Figure 20 The illustration is shown as an unfolding feature. Figure 18 The diagram shows the operation of the curtain control module.

[0041] List of reference numerals

[0042] 100: Curtains

[0043] 102: Top Rail

[0044] 104: Movable rail

[0045] 106: Shielding Structure

[0046] 110: Suspension components

[0047] 200: Actuation System

[0048] 202: Drive shaft

[0049] 204: Winding unit

[0050] 206: Control Module

[0051] 208: Vertical axis

[0052] 210: Outer shell

[0053] 210A: Inner cavity

[0054] 212A, 212B: Shell

[0055] 212C: Cover

[0056] 212D: Support

[0057] 214: Shaft mating parts

[0058] 216: Brake assembly

[0059] 218: Clutch

[0060] 220: Shaft

[0061] 222: Through hole

[0062] 224: Brake

[0063] 226: Rotating component

[0064] 228: Transfer Ring

[0065] 230: Brake coupling

[0066] 232: Brake spring

[0067] 232A: Terminal

[0068] 234: Hollow interior

[0069] 236: Outer surface

[0070] 238: Shaft

[0071] 240: Flange

[0072] R1, R2, D1, D2, X1, X2, V1, V2: Direction

[0073] 242: Gap

[0074] 244: Inner wall

[0075] 246: Protrusion

[0076] 248, 252: Incline

[0077] 250A, 250B, 254A, 254B: Stopping surface

[0078] 256, 258, 266: Convex teeth

[0079] 260: Clutch actuator

[0080] 262: Clutch

[0081] 262A: Elongated part

[0082] 262B: Pin

[0083] 264: Set

[0084] 268: Channel

[0085] 269: Disc

[0086] 270: Guide groove

[0087] 302, 304: Operating devices

[0088] 306, 306': Transmission assembly

[0089] 310: Sticks

[0090] Y: Major axis

[0091] 312: Lifting Actuation Module

[0092] 314: Roll

[0093] 316: Operating components

[0094] 317: Handle

[0095] 318: Spring

[0096] 319: Guiding component

[0097] 320: Inner cavity

[0098] 322, 324, 326, 328, 330: Gears

[0099] 332, 334: Clutch components

[0100] 322A, 322B, 324A, 324B, 326A, 328A, 328B, 330A: Convex teeth

[0101] 324R, 328R, 330R: Pivot axis

[0102] 326B: Sleeve

[0103] 335: Rod

[0104] 336: Protrusion

[0105] 338: Guide groove

[0106] 340: Convex teeth

[0107] 342: Bias Spring

[0108] 344: Toothed element

[0109] 345: Guide rod

[0110] 346: Guide groove

[0111] 347: Fixture

[0112] 348: Convex teeth

[0113] 350: Protrusion

[0114] 360: Slider. Detailed Implementation

[0115] Figure 1 and Figure 2 The illustration shows perspective views of the curtain 100 provided in an embodiment of the present invention in different states. (See attached image.) Figure 1 and Figure 2 The curtain 100 may include a top track 102, a movable track 104, a shading structure 106, and an actuation system 200. Figure 1 To indicate whether the curtain 100 is folded or raised, Figure 2 This indicates whether the curtain 100 is open or closed.

[0116] The top rail 102 can be fixed to the top of the window and can be of any shape. According to one embodiment, the top rail 102 can have an elongated shape, wherein it has a cavity for accommodating at least part of the actuation system 200.

[0117] The movable rail 104 can be suspended by multiple suspension components 110 ( Figure 2 (Drawn in dashed lines) Suspended from the top rail 102. According to one embodiment, the movable rail 104 is an elongated track with a channel for securing the curtain structure 106. The suspension element 110 includes, but is not limited to, ropes, strips, ribbons, etc. In one embodiment, the movable rail 104 is the bottom rail of the curtain 100. However, it should be understood that other curtain elements may be provided below the movable rail 104 as needed.

[0118] The shielding structure 106 is disposed between the top rail 102 and the movable rail 104, and can be any suitable structure that can extend and overlap between the top rail 102 and the movable rail 104. According to one example, the shielding structure 106 is, for example, a cell-like structure, which may include, but is not limited to, a honeycomb structure. In use, the shielding structure 106 can be suspended from the top rail 102, and can be unfolded or overlapped by the displacement of the movable rail 104 away from or towards the top rail 102.

[0119] See Figure 1 and Figure 2 The movable track 104 can move vertically relative to the top track 102 to adjust the curtain 100 to a desired state. For example, the movable track 104 can move upward toward the top track 102 to overlap the blinding structure 106 (e.g., Figure 1 (as shown), or move downwards away from the top rail 102 to deploy the shielding structure 106 (as shown). Figure 2 (As shown). The vertical position of the movable rail 104 relative to the top rail 102 can be controlled by the operation of the actuation system 200.

[0120] See Figure 1 and Figure 2The actuation system 200 is connected to the top rail 102 and can be operated to move the movable rail 104 relative to the top rail 102 for adjustment. The actuation system 200 may include a drive shaft 202, a plurality of winding units 204 pivotally coupled to the drive shaft 202, and a control module 206 coupled to the drive shaft 202.

[0121] Drive shaft 202 and winding unit 204 may be mounted in top rail 102. Drive shaft 202 is coupled to winding unit 204 and is pivotable about longitudinal axis 208 of drive shaft 202. Each winding unit 204 is connected to movable rail 104 via at least one suspension member 110, and can be operated to retract suspension member 110 to pull up movable rail 104 or extend suspension member 110 to lower movable rail 104. For example, winding unit 204 may include a drum (not shown) pivotally coupled to drive shaft 202 and connected to one end of suspension member 110, the other end of suspension member 110 being connected to movable rail 104, whereby the drum can pivot synchronously with drive shaft 202 to retract suspension member 110 or extend suspension member 110. Since all winding units 204 are coupled to the drive shaft 202, the winding units 204 can operate synchronously to wind up the suspension member 110 or extend the suspension member 110.

[0122] The control module 206 is coupled to the drive shaft 202 and can be operated to drive the drive shaft 202 to pivot in any direction about the longitudinal axis 208, thereby raising or lowering the movable rail 104. Figure 1 and Figure 2 , Figure 3 An exploded view of the structure of the control module 206 is shown. Figure 4 A partial sectional view of the control module 206 is then drawn.

[0123] See Figure 1-4 The control module 206 may include a housing 210, which may be fixed to the top rail 102. The housing 210 may have an inner cavity 210A suitable for accommodating at least some of the components of the control module 206. According to one example, the housing 210 may include two housings 212A, 212B and a cover 212C and a bracket 212D, with the housings 212A, 212B fixedly connected to define at least a portion of the inner cavity 210A, and the cover 212C and the bracket 212D fixedly connected to the housings 212A to close one side of the inner cavity 210A.

[0124] See Figure 3 , 4 The control module 206 may include a shaft connector 214, a brake assembly 216, a clutch 218, two operating devices 302 and 304, and a transmission assembly 306, all of which are connected to the housing 210.

[0125] To facilitate the assembly of the components, the housing 210 may include a shaft portion 220, which can be fixedly connected to the bracket 212D. The shaft portion 220 is generally coaxial with the longitudinal axis 208. The shaft portion 220 may be locked to the bracket 212D or integrally formed therefrom.

[0126] See Figure 3 , 4 The shaft coupling 214 is at least partially housed within the cavity 210A of the housing 210 and extends outwardly from the housing 212B. According to one embodiment, the shaft coupling 214 may be a single component. The shaft coupling 214 may be pivotally connected to the housing 210, allowing it to pivot about the longitudinal axis 208.

[0127] Shaft coupling 214 is pivotally coupled to drive shaft 202, allowing drive shaft 202 and shaft coupling 214 to pivot synchronously about longitudinal axis 208 relative to housing 210. For example, one end of drive shaft 202 can be inserted into through hole 222 provided in shaft coupling 214. Furthermore, drive shaft 202 can be locked to shaft coupling 214 by fasteners (not shown). Accordingly, shaft coupling 214 can be pivotally coupled to winding unit 204 via drive shaft 202, allowing drive shaft 202 and shaft coupling 214 to pivot synchronously about longitudinal axis 208 to raise and lower movable rail 104.

[0128] Cooperate Figure 3 , 4 , Figure 5 and Figure 6 Exploded and sectional views of a portion of the brake assembly 216 and the clutch 218 are shown respectively. (See also...) Figure 3-6 The brake assembly 216 includes a brake 224, a rotating member 226 pivotable about a longitudinal axis 208, and a transfer ring 228, wherein the transfer ring 228 is configured to couple and decouple the rotating member 226 from the brake 224.

[0129] See Figure 3-6 Brake 224 is configured to provide braking force suitable for preventing pivoting of drive shaft 202 and shaft coupling 214. Brake 224 may include brake engagement 230 and brake spring 232, both disposed about longitudinal axis 208. Brake engagement 230 may be a single integrally formed piece having a hollow interior 234 and an outer surface 236. The outer surface 236 may be generally cylindrical.

[0130] At least one end 232A of the brake spring 232 is fixed to the housing 210 and is configured to contact the outer surface 236 of the brake engagement 230. For example, the brake spring 232 may comprise a torsion spring configured to frictionally contact the outer surface 236 of the brake engagement 230. The brake spring 232 may be tightened and apply a braking force to the brake engagement 230 to prevent the brake engagement 230 from pivoting about the longitudinal axis 208. The brake 224 may remain substantially static during operation, while the braking force of the brake spring 232 is adapted to prevent the drive shaft 202 and the shaft mating member 214 from pivoting.

[0131] See Figure 3-6 The rotating member 226 is disposed in the inner cavity 210A of the housing 210 and is pivotable about the longitudinal axis 208. The rotating member 226 may include a shaft portion 238 and a flange 240, and the flange 240 protrudes from the circumference of the shaft portion 238 at one end. The rotating member 226 may be disposed adjacent to the brake 224, and the shaft portion 238 of the rotating member 226 may extend through the hollow interior 234 of the brake engagement member 230.

[0132] See Figure 3-6 The transfer ring 228 is configured to move between a coupled position and a decoupled position, wherein the rotating member 226 is operatively coupled to the brake 224 via the transfer ring 228 in the coupled position, and decoupled from the brake 224 when the transfer ring 228 is in the decoupled position. When the rotating member 226 is coupled to the brake 224, the braking force of the brake spring 232 prevents the rotating member 226 from pivoting. When the rotating member 226 is decoupled from the brake 224, the rotating member 226 is not subject to the braking force of the brake spring 232 and can pivot relative to the brake 224.

[0133] The transfer ring 228 is not limited to a specific shape and may have any structure at least partially surrounding the longitudinal axis 208. For example, a portion of the transfer ring 228 may include a cylindrical or partially cylindrical shape. According to one embodiment, the transfer ring 228 is coupled to the brake 224 and is movable relative to the brake 224 along the longitudinal axis 208 between a coupled position and a decoupled position, wherein the transfer ring 228 is engaged with the rotating member 226 in the coupled position and disengaged from the rotating member 226 in the decoupled position. For example, the transfer ring 228 may be disposed around the shaft portion 238 of the rotating member 226 and slidably contact the shaft portion 238 and the brake engagement member 230 within the hollow interior 234. The transfer ring 228 may be configured to pivot about and slide along the shaft portion 238 of the rotating member 226.

[0134] See Figure 3-6The transfer ring 228 is configured to switch from a decoupled position to a coupled position in response to rotation of the rotating member 226 in direction R1, and to switch from a coupled position to a decoupled position in response to rotation of the rotating member 226 in the opposite direction R2. According to one embodiment, the transfer ring 228 can slide into the brake 224 via at least one inclined surface provided on the transfer ring 228 and / or the brake 224. For example, the transfer ring 228 may have a notch 242 offset from the longitudinal axis 208, and the inner wall 244 of the brake engagement member 230, which at least partially defines its hollow interior 234, may have a protrusion 246, and the protrusion 246 is restricted to move within the notch 242. The transfer ring 228 may have a notch 242 with a ramp 248 extending between two stop surfaces 250A and 250B, and the brake engagement 230 may have a protrusion 246 with a ramp 252 extending between two stop surfaces 254A and 254B, and the ramp 248 may slidably contact the ramp 252. This connection allows for limited movement of the transfer ring 228 relative to the brake engagement 230.

[0135] During operation, when the transfer ring 228 moves relative to the brake engagement member 230, the protrusion 246 of the brake engagement member 230 can be displaced between the two stop surfaces 250A and 250B of the notch 242. Specifically, since the inclined surface 248 of the transfer ring 228 slides in contact with the inclined surface 252 of the brake engagement member 230, and there is frictional contact between the shaft portion 238 of the rotating member 226 and the transfer ring 228, the rotation of the rotating member 226 in the direction R1 can cause the transfer ring 228 to pivot and slide in the direction D1, thereby moving the transfer ring 228 from the decoupled position to the coupled position, and the rotating member 226 is thereby coupled to the brake engagement member 230 through the transfer ring 228.

[0136] See Figure 3-6 The rotating member 226 may include a plurality of protruding teeth 256 distributed around the longitudinal axis 208, and the transfer ring 228 may include a plurality of protruding teeth 258 distributed around the longitudinal axis 208. The protruding teeth 258 engage with the protruding teeth 256 when the transfer ring 228 is in the coupled position, and disengage from the protruding teeth 256 when the transfer ring 228 is in the decoupled position. The protruding teeth 256 may, for example, be disposed on the flange 240 of the rotating member 226 around the shaft portion 238. Alternatively, the protruding teeth 258 may be disposed in the transfer ring 228 along the circular edge surrounding the shaft portion 238 and facing the rotating member 226.

[0137] The protrusions 256 and 258 can be sawtooth-shaped. When the transfer ring 228 is in the coupled position, the meshing between the protrusions 256 and 258 allows torque transmission only in direction R1 from the rotating member 226 to the transfer ring 228, and allows the rotating member 226 to pivot relative to the transfer ring 228 in a direction R2 opposite to direction R1. Direction R1 can correspond to the pivoting direction of the drive shaft 202 and shaft coupling 214 for lowering the movable rail 104, and direction R2 can correspond to the pivoting direction of the drive shaft 202 and shaft coupling 214 for pulling up the movable rail 104. The torque in direction R1 can be generated by the suspended load of the movable rail 104, which can cause rotation in direction R1 and drive the stop surface 250A of the transfer ring 228 toward the stop surface 254A of the brake engagement member 230. When the transfer ring 228 is in the coupled position, the rotating member 226 is pivotally coupled to the transfer ring 228, and the braking force applied by the brake spring 232 to the brake engagement member 230 is suitable to prevent the rotating member 226 and the transfer ring 228 from pivoting in direction R1 through the contact between the stop surface 250A of the transfer ring 228 and the stop surface 254A of the brake engagement member 230. Therefore, the braking force of the brake spring 232 can resist the torque in direction R1, thereby enabling the movable rail 104 to maintain its position. When the rotating member 226 pivots in direction R2, the arrangement of the serrations 256 and 258 allows the rotating member 226 to push the transfer ring 228, causing the transfer ring 228 to move away in direction D2, opposite to direction D1, thereby changing the transfer ring 228 from the coupled position to the decoupled position.

[0138] See Figure 3-6 The clutch 218 is configured to couple and decouple the shaft coupling 214 from the rotating member 226. Specifically, the clutch 218 has a clutch engaged state and a clutch disengaged state. In the clutch engaged state, the clutch 218 couples the shaft coupling 214 to the rotating member 226; in the clutch disengaged state, the clutch 218 decouples the shaft coupling 214 from the rotating member 226. The clutch 218 includes a clutch actuator 260, which, when operated, causes the clutch 218 to switch between the clutch engaged state and the clutch disengaged state.

[0139] According to one embodiment, the clutch 218 may include a plurality of clutch members 262 movably connected to the clutch actuator 260, which is pivotable about a longitudinal axis 208 to engage and disengage the clutch members 262 with the shaft coupling member 214. The clutch members 262 engage with the shaft coupling member 214 in a clutch-coupled state and disengage from the shaft coupling member 214 in a clutch-discoupled state. According to one embodiment, the shaft coupling member 214 may have a sleeve portion 264 with a plurality of inwardly protruding teeth 266 on its inner wall, and the clutch members 262 may engage with any one of the teeth 266 in the clutch-coupled state.

[0140] Cooperate Figure 3-6 , Figure 7 Partial structural details of the clutch 218 are shown along a plane perpendicular to the longitudinal axis 208. (See also...) Figure 3-7 The clutch 262 can be coupled to the rotating member 226, so that the clutch 262 and the rotating member 226 can move synchronously around the longitudinal axis 208.

[0141] According to one embodiment, the rotating member 226 may be provided with a plurality of channels 268, which are located at different angular positions away from the longitudinal axis 208, and the channels 268 have openings on the circumference of the rotating member 226, and the clutches 262 are respectively guided to slide along the channels 268. The channels 268 are, for example, provided in the rotating member 226 on one side relative to the flange 240 of the shaft portion 238. Each of the clutches 262 may be a single unit comprising an elongated portion 262A and a pin 262B, the pin 262B protruding from the elongated portion 262A. The elongated portions 262A of the clutches 262 are respectively guided to slide along the channels 268. The clutch 262 can thus slide approximately perpendicular to the longitudinal axis 208 relative to the rotating member 226, so as to extend out of the circumference of the rotating member 226 and engage with the protruding teeth 266 of the sleeve portion 264, or retract toward the interior of the rotating member 226 and disengage from the protruding teeth 266 of the sleeve portion 264.

[0142] See Figure 3-7 The clutch member 262 is movably connected to the clutch actuator 260, such that rotation of the clutch actuator 260 about the longitudinal axis 208 causes the clutch member 262 to move, thereby engaging or disengaging the clutch member 262 with the sleeve 264 of the shaft coupling member 214. According to one embodiment, the clutch actuator 260 may have a disc 269 with a plurality of guide grooves 270, and the pin 262B of the clutch member 262 may slide into each of the guide grooves 270. The guide grooves 270 may overlap with channels 268, and the overlapping guide grooves 270 and channels 268 may extend in different directions. Accordingly, rotation of the clutch actuator 260 in any direction causes the clutch member 262 to slide synchronously relative to the rotating member 226, thereby engaging or disengaging the clutch member 262 with the shaft coupling member 214. Figure 7 The clutch 262 is engaged with the shaft coupling 214, indicating the corresponding clutch coupling state. Figure 8 The clutch 262 is disengaged from the shaft coupling 214, indicating that the corresponding clutch is decoupled.

[0143] With the structural configuration described above, when the clutch 218 is in the clutch coupled state, the clutch actuator 260 can pivot synchronously with the shaft coupling member 214 and the rotating member 226. Therefore, the clutch actuator 260 can be actuated to cause the rotating member 226 to pivot in direction R1, thereby causing the transfer ring 228 to move from the discoupled position to the coupled position, and the rotating member 226 can thus be coupled with the brake engagement member 230 through the transfer ring 228. When the transfer ring 228 is in the coupled position and the clutch 218 is in the clutch coupled state, the braking force of the brake 224 can be applied to the shaft coupling member 214 through the clutch member 262, preventing the shaft coupling member 214 and the drive shaft 202 from pivoting in direction R1.

[0144] See Figure 3-5 The transmission assembly 306 is configured to selectively couple either the operating device 302 or the operating device 304 to the clutch actuator 260, such that each of the operating devices 302 and 304 can be independently operated by the user to actuate the clutch actuator 260. For example, when the operating device 304 is decoupled from the clutch actuator 260, the operating device 302 can be operated to cause the clutch actuator 260 to pivot, thereby changing the clutch 218 from a clutch engaged state to a clutch disengaged state; and when the operating device 302 is decoupled from the clutch actuator 260, the operating device 304 can be operated to cause the clutch actuator 260 to pivot, thereby changing the clutch 218 from a clutch disengaged state to a clutch engaged state. Specifically, when the transfer ring 228 is in the coupled position, the operating device 302 can be operated to cause the clutch actuator 260 to pivot, thereby changing the clutch 218 from a clutch coupled state to a clutch discoupled state. This allows the shaft coupling 214 and the drive shaft 202 to pivot relative to the rotating member 226 and the brake 224 in direction R1. Alternatively, the operating device 304 can be operated to cause the clutch actuator 260 to pivot, thereby changing the clutch 218 from a clutch discoupled state to a clutch coupled state. The rotating member 226 can then pivot synchronously with the shaft coupling 214 and the drive shaft 202 in direction R2, thereby changing the transfer ring 228 from the coupled position to the discoupled position.

[0145] See Figure 1-3 The operating device 302 may include a bar 310 having a long axis Y, while the operating device 304 may include a lifting actuation module 312. Each of the bar 310 and the lifting actuation module 312 can be operated independently to actuate the clutch actuator 260.

[0146] See Figure 1-3The lifting actuation module 312 may include a drum 314, an operating member 316, and a spring 318, wherein the drum 314 is connected to the operating member 316, and the spring 318 is connected to the drum 314. The operating member 316 may be a linear elastic element, one end of which is fixedly connected to the drum 314. The operating member 316 may include, for example, but is not limited to, a rope, a strap, etc. The drum 314 is pivotally connected to the housing 210, such that the drum 314 can pivot about the longitudinal axis 208 in the winding direction to wind up the operating member 316, and pivot in the extension direction to extend the operating member 316. The operating member 316 may extend through the hollow interior of the bar 310, and the other end of the operating member 316 is fixedly connected to a handle 317. The handle 317 is located adjacent to the end of the bar 310 and can be pulled away from the bar 310 to extend the operating member 316 from the drum 314. A guide 319 may be provided in the housing 210 to guide the operating element 316.

[0147] Spring 318 is connected to drum 314 and adapted to bias drum 314 to pivot in the winding direction. According to one embodiment, drum 314 may have an inner cavity 320 through which shaft 220 passes. Spring 318 may be disposed within the inner cavity 320 about shaft 220, with both ends of spring 318 connected to shaft 220 and drum 314, respectively. Lifting actuation module 312 can be operated by pulling actuation member 316 to pivot drum 314 in the extension direction onto movable rail 104. When actuation member 316 is released, spring 318 can cause drum 314 to pivot and wind up at least a portion of actuation member 316.

[0148] See Figure 3-6 The transmission assembly 306 may include multiple gears 322, 324, 326, 328, 330 and two clutches 332, 334. The transmission assembly 306 is provided, for example, in an embodiment where a bar 310 pivots about a long axis Y to actuate a clutch actuator 260. The bar 310 may be coupled to the clutch actuator 260 via gears 322, 324, 326, 328, 330 and clutch 332. A lift actuation module 312 may be coupled to the clutch actuator 260 via gear 322 and clutch 334.

[0149] Cooperate Figure 3-6 , Figure 9 An enlarged 3D view of a portion of the control module 206 is shown. Figure 10 An exploded view showing the configuration of the brake assembly 216, clutch 218, and transmission assembly 306. (See attached image.) Figure 3-59, 10. Gear 322 may have two sets of teeth 322A and 322B, and gear 322 is pivotally locked to clutch actuator 260, allowing gear 322 and clutch actuator 260 to pivot synchronously about longitudinal axis 208. For example, clutch actuator 260 may have a rod 335, one end of which is fixed to disc 269, and the other end of which is pivotally coupled to gear 322. Gear 322 may be located adjacent to one side of brake engagement member 230, and rod 335 may extend along longitudinal axis 208 and be connected to gear 322 via rotating member 226 and brake engagement member 230. Teeth 322A may be arranged along the outer circumference of gear 322, and teeth 322B may be arranged along the inner circumference of the surface of gear 322 relative to brake engagement member 230.

[0150] Gear 324 may have two sets of teeth 324A and 324B, and may be pivotally connected to housing 210 via a pivot axis 324R parallel to the longitudinal axis 208. Teeth 324A may be arranged along the outer circumference of gear 324, and teeth 324B may be arranged along the inner circumference on the surface of gear 324. Teeth 324A of gear 324 meshes with teeth 322A of gear 322, while teeth 324B of gear 324 and teeth 322B of gear 322 face the same direction.

[0151] Gear 326 may have a tooth 326A and a sleeve 326B, and the sleeve 326B may have an inwardly protruding protrusion 336. Gear 326 may be pivotally connected to housing 210 via pivot axis 324R of gear 324.

[0152] Gear 328 may have two sets of teeth 328A and 328B, and is pivotally connected to housing 210 via a pivot axis 328R parallel to the pivot axis 324R. Both teeth 328A and 328B of gear 328 are arranged about the pivot axis 328R. Teeth 328A of gear 328 meshes with teeth 326A of gear 326.

[0153] Gear 330 has a tooth 330A, which is pivotally connected to housing 210 via pivot axis 330R perpendicular to pivot axes 324R and 328R, and is also pivotally connected to bar 310. The tooth 330A of gear 330 meshes with the tooth 328B of gear 328. The pivotal connection between bar 310 and gear 330 allows bar 310 to change its tilt angle, making bar 310 easier to operate.

[0154] Cooperate Figure 3 , 9 10, Figure 11 and Figure 12 A partial sectional view illustrating the assembly and operation of clutch 332. (See also...) Figure 3 , 9-12, the clutch element 332 is movable to engage or disengage with the gear 324 to couple or decouple the operating device 302 from the clutch actuator 260. Specifically, the clutch element 332 is movably connected to the bar 310 and is movable to engage or disengage with the tooth 324B of the gear 324 to couple or decouple the bar 310 from the clutch actuator 260.

[0155] According to one embodiment, the outer surface of the clutch 332 may be provided with a guide groove 338 inclined at an angle relative to the pivot axis 324R, and one end of the clutch 332 may be provided with a protruding tooth 340. The clutch 332 may be configured to slide along the pivot axis 324R of the gear 324 and pivot about the pivot axis 324R, and at least partially accommodated in the sleeve portion 326B of the gear 326, so that the protrusion 336 slides in the guide groove 338. With the above configuration, when the bar 310 operates in one direction, it can cause the clutch 332 to move and cause the protruding tooth 340 of the clutch 332 to engage with the protruding tooth 324B of the gear 324; when the bar 310 operates in the opposite direction, it can cause the clutch 332 to move and cause the protruding tooth 340 of the clutch 332 to disengage from the protruding tooth 324B of the gear 324. When the clutch 332 is engaged with the gear 324 (e.g. Figure 11 As shown), the bar 310 is coupled to the clutch actuator 260; when the clutch element 332 disengages from the gear 324 (as ... clutch actuator 330 is coupled to the clutch actuator 260. Figure 12 As shown), the bar 310 is then decoupled from the clutch actuator 260.

[0156] With the aforementioned configuration, the bar 310 is movably connected to the clutch 332, and can be operated to cause the clutch 332 to move and engage or disengage with the gear 324. For example, the bar 310 can move from an initial state to an actuated state to cause the clutch 332 to move and engage with the gear 324, and when the clutch 332 moves to disengage from the gear 324, the bar 310 can move in the opposite direction from the actuated state back to the initial state.

[0157] Figure 3 , 9 In the embodiment shown in 10, the bar 310 is pivotable about the long axis Y between an initial state and an actuated state. According to another embodiment described below, the bar 310 may also be configured to slide between an initial state and an actuated state to cause the clutch 332 to move and engage with the gear 324.

[0158] See Figure 3 , 9-12, embodiments of the present invention may further include a bias spring 342 configured to assist the clutch 332 in disengaging from the gear 324. For example, the teeth 326A of the gear 326 may engage with a toothed element 344 movably connected to the housing 210, and the bias spring 342 may be connected to the housing 210 and the toothed element 344. According to one embodiment, the housing 210 may have a fixed seat 347 fixed to one end of the guide rod 345, the toothed element 344 may slide against the guide rod 345, and the bias spring 342 may be disposed around the guide rod 345 with its two ends connected to the fixed seat 347 and the toothed element 344, respectively. When the bar 310 is released into the actuated state, the spring force of the bias spring 342 can cause the toothed element 344 to move, and the rotation direction generated by the gear 326 can cause the clutch 332 to disengage from the gear 324 and cause the bar 310 to return to its initial state.

[0159] See Figure 1-4 The clutch 334 is movable to engage or disengage with the gear 322 to couple or decouple the operating device 304 from the clutch actuator 260. Specifically, the clutch 334 is movably connected to the drum 314 of the lifting actuation module 312 and is movable to engage or disengage with the teeth 322B of the gear 322 to couple or decouple the lifting actuation module 312 from the clutch actuator 260.

[0160] According to one embodiment, a guide groove 346 may be provided in the outer surface of the clutch 334, and a protruding tooth 348 may be provided at one end of the clutch 334. The clutch 334 may be configured to slide along the longitudinal axis 208 and pivot about the longitudinal axis 208, and at least partially accommodated in the hollow interior of the drum 314. The inner wall of the drum 314 may be provided with an inwardly protruding protrusion 350, which can slide against the guide groove 346 of the clutch 334.

[0161] With the aforementioned structural configuration, rotation of the drum 314 in the extension direction causes the clutch 334 to move, engaging the teeth 348 of the clutch 334 with the teeth 322B of the gear 322. Conversely, rotation of the drum 314 in the winding direction causes the clutch 334 to move in the opposite direction, disengaging the teeth 348 of the clutch 334 from the teeth 322B of the gear 322. Rotation of the drum 314 in the extension direction corresponds to rotation of the rotating member 226 in direction R2 (e.g.,...). Figure 5 (As shown), causing the transfer ring 228 to move from the coupled position to the decoupled position. When the clutch 334 engages with the gear 322 (as shown), Figure 13 As shown), when the lifting actuation module 312 is coupled to the clutch actuation element 260; when the clutch element 334 disengages from the gear 322 (as shown), Figure 4 As shown, raising the actuation module 312 decouples it from the clutch actuation component 260.

[0162] The teeth 322B of gear 322 and the teeth 348 of clutch 334 can be sawtooth-shaped. When clutch 334 meshes with gear 322, the meshing action between teeth 322B and 348 allows the drive from drum 314 and clutch 334 to clutch actuator 260 only in the extension direction (i.e., corresponding to...). Figure 5 The torque transmission is in the direction R2 shown, and allows the drum 314 and clutch 334 to move relative to the clutch actuator 260 in the winding direction (i.e., corresponding to the direction R2). Figure 5 The rotation in the direction R1 shown. The arrangement of the convex teeth 322B and 348 causes the clutch actuator 260 and gear 322 to rotate when operated by the operating device 302, so that gear 322 can push the clutch member 334 away and disengage from gear 322.

[0163] Cooperate Figure 1-13 , Figure 14 and Figure 15 The illustration shows an operation diagram of unfolding the curtain 100, wherein the curtain 100 is equipped with the aforementioned actuation system 200. (See attached diagram) Figure 1 , 3 -13, Assume that the movable rail 104 initially maintains its position relative to the top rail 102. In this initial state, the clutch 218 is in clutch engagement, and the torque generated by the suspended load of the movable rail 104 relative to the longitudinal axis 208 can maintain the transfer ring 228 in the engagement position. Therefore, the braking force of the brake 224 can prevent the drive shaft 202, shaft coupling 214, and rotating member 226 from pivoting in direction R1.

[0164] See Figure 3-13 14. To open the curtain 100, the user can pivot the rod 310 around the long axis Y from the initial state to the actuated state in direction X1. Then, the user releases the rod 310, allowing the bias spring 342 to cause the rod 310 to pivot from the actuated state to the initial state in the opposite direction X2. The movement of the rod 310 from the initial state to the actuated state causes the clutch actuator 260 to pivot, changing the clutch 218 from the clutch engaged state to the clutch disengaged state. With the brake 224 and the rotating member 226 remaining static and the transfer ring 228 remaining in the coupled position, the drive shaft 202 and the shaft coupling member 214 can pivot in direction R1 by gravity to lower the movable rail 104.

[0165] See Figure 3-13When the movable rail 104 reaches the desired position, the user can slightly pull down the handle 317 and release the operating member 316. Pulling down the operating member 316 causes the drum 314 to pivot in the extension direction, thereby coupling the lifting actuation module 312 with the clutch actuator 260, and causing the clutch actuator 260 to pivot, thus changing the clutch 218 from a disengaged state to a engaged state. When the operating member 316 is released after being pulled down, it causes the drum 314 to pivot in the winding direction, disengaging the lifting actuation module 312 from the clutch actuator 260. Therefore, the clutch 218 can remain in the engaged state, and the braking force of the brake 224 can be applied to the shaft mating member 214 and the drive shaft 202 through the transfer ring 228, the rotating member 226, and the clutch member 262, thereby maintaining the movable rail 104 in the desired position.

[0166] Cooperate Figure 3-13 , Figure 16 and Figure 17 The diagram illustrates the operation of a movable track 104 for drawing the curtain 100, wherein the curtain 100 is equipped with the aforementioned actuation system 200. (See attached diagram.) Figure 3-13 16. When the user wants to pull up the movable rail 104, the operating member 316 can be continuously pulled down using the handle 317 while the bar 310 remains in its initial state. Accordingly, the drum 314 pivots in the extension direction, coupling the lifting actuation module 312 with the clutch actuator 260, and causing the clutch actuator 260 to pivot, thus changing the clutch 218 from a disengaged state to a engaged state. While the clutch 218 is in the engaged state, continuously pulling down the operating member 316 causes the shaft coupling 214 and the rotating member 226 to pivot synchronously in direction R2, thereby moving the transfer ring 228 from the engaged position to the disengaged position. Accordingly, the drive shaft 202, shaft coupling 214, clutch 218, and rotating member 226 can pivot synchronously with the drum 314 to pull up the movable rail 104, while the brake 224 and transfer ring 228 remain static.

[0167] See Figure 3-1317. The user can release the handle 317 when the movable rail 104 reaches the desired position or when the operating member 316 extends to its maximum length. Then, the drum 314 can pivot by the action of the spring 318 to retract the operating member 316, thereby disengaging the lifting actuation module 312 from the clutch actuator 260. Therefore, the clutch 218 can remain in the clutch-coupled state, and the suspended load of the movable rail 104 can then cause the shaft coupling 214, the clutch 218, and the rotating member 226 to pivot in direction R1, thereby moving the transfer ring 228 from the disengaged position to the coupled position. Accordingly, the braking force of the brake 224 can be applied to the shaft coupling 214 and the drive shaft 202 through the coupled transfer ring 228, the rotating member 226, and the clutch 262, thereby maintaining the movable rail 104 in its current position.

[0168] The actuation and release operation of the operating element 316 can be repeated multiple times until the movable rail 104 moves up to the desired position. During the operation of pulling up the movable rail 104, the bar 310 can remain in the initial state.

[0169] Figure 18 An exploded view is shown in which, according to another embodiment, the aforementioned transmission component 306 is replaced by a transmission component 306' in the control module 206. Figure 18 In the embodiments, the bar 310 used is configured to slide vertically relative to the housing 210 between the initial state and the actuated state, rather than pivoting about the long axis Y, in order to actuate the clutch actuator 260.

[0170] See Figure 18 The transmission assembly 306' is substantially the same as the transmission assembly 306 described above, but the gears 328 and 330 of the above embodiment are omitted from the transmission assembly 306'. Figure 18 In this embodiment, the bar 310 can be slidably connected to the housing 210 via a slider 360. For example, the slider 360 can be fixed to the upper end of the bar 310 and slidably accommodated within a channel provided in the housing 210. The bar 310 and the slider 360 can slide up and down synchronously relative to the housing 210.

[0171] The toothed element 344 can be fixedly connected to the sliding member 360 and slidably connected to the guide rod 345, and can mesh with the gear 326. Accordingly, the bar 310 and the toothed element 344 can slide synchronously relative to the housing 210, thereby causing the clutch 332 to engage or disengage with the gear 324 as described above.

[0172] As in the aforementioned embodiments, the bias spring 342 is disposed around the guide rod 345 and connected to the housing 210 and the toothed element 344. When the bar 310 is released to the actuated state, the spring force of the bias spring 342 can also cause the toothed element 344 to move, and the rotation direction generated by the gear 326 thereby causes the clutch 332 to disengage from the gear 324 and causes the bar 310 to return to its initial state.

[0173] Figure 18 The control module 206 shown, except for the transmission assembly 306', has other components that can be connected to... Figure 3 The embodiments have similar structures and operations.

[0174] Cooperate Figure 18 , Figure 19 and Figure 20 The illustration is shown as an unfolding feature. Figure 18 The diagram shows the operation of the curtain 100 via the control module 206. (See attached diagram.) Figure 18 , 19 To open the curtain 100, the user can pull the rod 310 downwards in direction V1 from the initial state to the actuated state, and then release the rod 310, allowing the bias spring 342 to cause the rod 310 to slide upwards in the opposite direction V2 from the actuated state back to the initial state. The movement of the rod 310 from the initial state to the actuated state causes the clutch actuator 260 to pivot, changing the clutch 218 from the clutch engaged state to the clutch disengaged state. As described above, with the brake 224 and the rotating member 226 remaining static and the transfer ring 228 remaining in the coupled position, the drive shaft 202 and the shaft coupling member 214 can pivot by gravity to lower the movable rail 104.

[0175] See Figure 18 , 20 When the movable rail 104 reaches the desired position, the user can slightly pull down the handle 317 and release the operating member 316. Pulling down the operating member 316 causes the drum 314 to pivot in the extension direction, thereby coupling the lifting actuation module 312 with the clutch actuator 260, and causing the clutch actuator 260 to pivot, thus changing the clutch 218 from a disengaged state to a engaged state. When the operating member 316 is released after being pulled down, it causes the drum 314 to pivot in the winding direction, disengaging the lifting actuation module 312 from the clutch actuator 260. Therefore, the clutch 218 can remain in the engaged state, and the braking force of the brake 224 can be applied to the shaft coupling 214 and the drive shaft 202 through the transfer ring 228, the rotating member 226, and the clutch member 262, thereby maintaining the movable rail 104 in the desired position.

[0176] To gather Figure 19 , 20When the curtain 100 is in place, the movable track 104 can be pulled up by pulling and releasing the handle 317 as described above.

[0177] The actuation system of this invention provides a movable track for easily lowering and raising curtains with relatively little force. Furthermore, the actuation system is applicable to different types of curtains, which helps simplify curtain manufacturing.

[0178] The above description is based on several different embodiments of the present invention, wherein each feature may be implemented individually or in different combinations. Therefore, the disclosure of embodiments of the present invention is a specific example illustrating the principles of the present invention and should not be construed as limiting the present invention to the disclosed embodiments. Furthermore, the foregoing description and accompanying drawings are merely illustrative of the present invention and are not intended to limit it. Variations or combinations of other elements are possible and do not depart from the spirit and scope of the present invention.

Claims

1. An actuation system for a curtain, characterized in that, include: A drive shaft having a longitudinal axis and pivotally coupled to a shaft mating member, such that the drive shaft and the shaft mating member can pivot about the longitudinal axis; A brake assembly includes a brake, a rotating member pivotable about the longitudinal axis, and a transfer ring configured to couple and decouple the rotating member from the brake, wherein the transfer ring changes from a decoupled position to a coupled position in response to rotation of the rotating member in a first direction, and changes from a coupled position to a decoupled position in response to rotation of the rotating member in a second direction opposite to the first direction; as well as A clutch configured to couple and decouple the shaft coupling member from the rotating member, the clutch having a clutch actuator pivotable about the longitudinal axis, the clutch actuator being operable to cause the clutch to switch between a clutch engaged state and a clutch disengaged state.

2. The actuation system according to claim 1, characterized in that, When the clutch is in the clutch coupling state, the clutch actuator can pivot synchronously with the shaft coupling member and the rotating member.

3. The actuation system according to claim 1, characterized in that, When the transfer ring is in the coupled position and the clutch is in the clutch coupled state, the shaft mating member and the drive shaft are prevented from pivoting in the first direction.

4. The actuation system according to claim 1, characterized in that, The transfer ring is coupled to the brake and is movable relative to the brake along the longitudinal axis between a coupled position and a decoupled position, wherein the transfer ring engages with the rotating member in the coupled position and disengages from the rotating member in the decoupled position.

5. The actuation system according to claim 4, characterized in that, The transfer ring slides in contact with the brake via at least one inclined surface provided on the transfer ring or the brake.

6. The actuation system according to claim 4, characterized in that, The brake includes a brake engagement member and a brake spring, the brake spring being disposed around the brake engagement member, and the transfer ring slidingly contacting the brake engagement member.

7. The actuation system according to claim 1, characterized in that, The clutch further includes a clutch element, which is coupled to the rotating element and movably connected to the clutch actuator. The clutch actuator is pivotable to cause the clutch element to engage and disengage with the shaft mating element. The clutch element engages with the shaft mating element in the clutch coupled state and disengages from the shaft mating element in the clutch discoupled state.

8. The actuation system according to claim 7, characterized in that, The shaft coupling has a sleeve portion with multiple protruding teeth on its inner wall, and the clutch can engage with any one of the multiple protruding teeth in the clutch coupling state.

9. The actuation system according to claim 1, characterized in that, Also includes: First operating device and second operating device; as well as A transmission assembly configured to selectively couple the first operating device or the second operating device to the clutch actuator; Wherein: when the second operating device is decoupled from the clutch actuator, the first operating device can be operated to cause the clutch actuator to pivot, thereby changing the clutch from a clutch coupled state to a clutch decoupled state; and when the first operating device is decoupled from the clutch actuator, the second operating device can be operated to cause the clutch actuator to pivot, thereby changing the clutch from a clutch decoupled state to a clutch coupled state.

10. The actuation system according to claim 9, characterized in that, When the transfer ring is in the coupled position, the first operating device can be operated to cause the clutch actuator to pivot, thereby changing the clutch from a clutch coupled state to a clutch discoupled state, thereby allowing the shaft coupling and the drive shaft to pivot relative to the rotating member and the brake in a first direction.

11. The actuation system according to claim 9, characterized in that, The second operating device can be operated to cause the clutch actuator to pivot, thereby changing the clutch from a clutch disengaged state to a clutch engaged state. The rotating member can then pivot synchronously with the shaft coupling member and the drive shaft in the second direction, thereby changing the transfer ring from an engaged position to a disengaged position.

12. The actuation system according to claim 9, characterized in that, The first operating device includes a bar, while the second operating device includes a lifting actuation module comprising a drum and an operating member connected to each other, the drum being pivotable in a winding direction for winding the operating member and pivotable in an extension direction for extending the operating member.

13. The actuation system according to claim 9, characterized in that, The transmission assembly includes: The first gear and the second gear mesh with each other; A first clutch element, movable to engage or disengage with the first gear, to couple or decouple the first operating device from the clutch actuator; and The second clutch element is movable to engage or disengage with the second gear to couple or decouple the second operating device from the clutch actuator.

14. The actuation system according to claim 13, characterized in that, The second clutch is movable to engage or disengage with a plurality of teeth provided on the second gear, the plurality of teeth being configured to cause the second clutch to move away from the second gear in response to the rotation of the second gear caused by the operation of the first operating device.

15. The actuation system according to claim 13, characterized in that, The second gear is pivotally locked to the clutch actuator, so that the second gear and the clutch actuator can pivot synchronously about the longitudinal axis.

16. The actuation system according to claim 13, characterized in that, The first operating device includes a bar that is movably connected to the first clutch, the bar being operated to cause the first clutch to move and engage with the first gear.

17. The actuation system according to claim 16, characterized in that, The bar can slide or pivot to cause the first clutch to move and engage with the first gear.

18. The actuation system according to claim 16, characterized in that, The bar can be moved from an initial state to an actuated state to cause the first clutch to move and engage with the first gear, and the actuation system also includes a bias spring configured to assist the first clutch in disengaging from the first gear.

19. The actuation system according to claim 13, characterized in that, The second operating device includes a lifting actuation module comprising a drum and an operating member connected to each other, the drum being movably connected to the second clutch member, the drum being pivotable in a winding direction for winding the operating member and pivotable in an extension direction for extending the operating member.

20. The actuation system according to claim 19, characterized in that, The rotation of the drum in the extension direction causes the second clutch to engage with the second gear, while the rotation of the drum in the winding direction causes the second clutch to disengage from the second gear.

21. A curtain, characterized in that, include: A top rail, a movable rail, and a shielding structure disposed between the top rail and the movable rail; A winding unit is installed on the top rail, and the winding unit is connected to the movable rail via a suspension member; as well as The actuation system according to any one of claims 1 to 20, wherein the drive shaft is pivotally coupled to the winding unit, the drive shaft being pivotable in a first direction to lower the movable rail and pivotable in a second direction to raise the movable rail.

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