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US 9,790,737 B2Granted
Roller clutch
AssigneeDraper, Inc.
InventorHarold R. Seib
Life of this patent
Estimating the term…
Abstract
A roller clutch for a window shade includes a housing, a bead chain wheel, and a roller adapter. Transmission of movement from the bead chain to the roller adapter depends upon the force applied by the bead chain to the roller clutch.
Claims31
A roller clutch for a window shade including
- a housing,
- a bead chain wheel supported by the housing and configured to receive a bead chain,
- a roller adapter sized to be received within a window shade roller, and
- interactive members having a first state transmitting bead chain movement from the bead chain wheel to the roller adapter to rotate the window shade roller and a second state blocking transmission of the bead chain movement from the bead chain wheel to the roller adapter while permitting rotation of the bead chain wheel.
1 more element
A roller clutch for a window shade including
- a housing,
- a unitary bead chain wheel supported by the housing and configured to receive a bead chain,
- a roller adapter sized to be received within a window shade roller, and
- interactive members having a first state transmitting bead chain movement from the bead chain wheel to the roller adapter to rotate the window shade roller and a second state blocking transmission of the bead chain movement from the bead chain wheel to the roller adapter.
1 more element
A roller clutch for a window shade including
- a housing,
- a bead chain wheel supported by the housing and configured to receive a bead chain,
- a roller adapter sized to be received within a window shade roller, and
- a spring positioned outside of the bead chain wheel to urge the roller clutch to a disengaged position blocking transmission of movement of the bead chain to the roller adapter, force from the bead chain moving the roller clutch to an engaged position transmitting movement of the bead chain to the roller adapter to rotate the window shade roller.
1 more element
A roller clutch for a window shade including
- a housing,
- a bead chain wheel supported by the housing and configured to receive a bead chain, the bead chain wheel being moveable relative to the housing from a raised position to a lowered position, the bead chain wheel having an upper portion and a lower portion, the lower portion of the bead chain wheel moving relative to the housing during movement of the bead chain wheel between the raised and lowered positions, and
- a roller adapter sized to be received within a window shade roller, transmission of movement of the bead chain to the roller adapter being dependent upon movement of the bead chain wheel between the raised and lowered positions.
A roller clutch for a window shade including
- a housing,
- a bead chain wheel supported by the housing and configured to receive a bead chain, the bead chain wheel having an axis of rotation moveable relative to the housing from a first position to a second position, and
- a roller adapter sized to be received within a window shade roller, transmission of movement of the bead chain to the roller adapter being dependent upon movement of the axis of rotation of the bead chain wheel.
A roller clutch for a window shade including
- a housing,
- a bead chain wheel supported by the housing and configured to receive a bead chain,
- a roller adapter sized to be received within a window shade roller, and
- interactive members having a first state transmitting bead chain movement from the bead chain wheel to the roller adapter to rotate the window shade roller and a second state blocking transmission of the bead chain movement from the bead chain wheel to the roller adapter, the size of the bead chain wheel remaining consistent during movement of the interactive members between the first and second states.
1 more element
Dependencies are inferred from the claim text.