Abstract:
A tilt assembly for a blind including a first tilt ring (22) and a second tilt ring (21), both rotatable about a drive axis for supporting a pair of tilt ladders, an input connector (24, 27), rotatable about the drive axis and configured to receive a drive shaft for rotating a lift spool and the input connector (24, 27), and a secondary input mechanism (18, 17, 16, 19) rotatable about the drive axis and configured to receive the drive shaft for rotating the secondary input mechanism (18, 17, 16, 19) with the input connector (24, 27). The method and assembly use a main clutch mechanism (23) for releasably connecting the first tilt ring (22) to the input connector (24, 27) and configured to release connection at each of two opposite rotational orientations of the first tilt ring (22) and use a secondary clutch mechanism (20) for releasably connecting the second tilt ring (21) to the secondary input mechanism (23) and configured to release connection at each of two opposite rotational orientations of the second tilt ring (21). With rotation of the drive shaft for rotating a lift spool, the input connector (24, 27) is configured to rotate the first tilt ring (22) to one of the two opposite rotational orientations and then continue to rotate when released by the main clutch mechanism (23) and the secondary input mechanism (18, 17, 16, 19) is configured to rotate the second tilt ring (22) to one of the two opposite rotational orientations and then continue to rotate when released by the secondary clutch mechanism (20).
Abstract:
A pulley assembly (1) for flexible motor vehicle transmission, comprising a supporting member (2; 4) rotatable about an axis (A), a pulley (3) adapted to cooperate with a belt and connected to the supporting member (2; 4) to be rotatable about said axis (A) with respect to the supporting member (2; 4), a spiral spring (6) interposed between the supporting element (2; 4) and the pulley (3) and comprising a sliding portion (16) elastically loaded in radial direction against a sliding wall (10) carried by one of either the supporting members (2; 4) or the pulley (3) for coupling by a tangential force transmission the hub (3) to the supporting member (2; 4). In particular, the sliding portion (16) defines a first contact zone (17; 18) and a second contact zone (19; 66) in which is concentrated the contact pressure exchanged between the sliding portion (16) and the sliding wall (10), the first and second contact zone (17; 18, 19; 66) being reciprocally and angularly distanced.
Abstract:
A decoupler assembly is provided for allowing an alternator to be rotatably driven by a serpentine belt in an engine of an automotive vehicle and for allowing the speed of the belt to oscillate relative to the alternator. A hub is fixedly carried by a drive shaft from the alternator for rotation therewith. A pulley is rotatably journaled to the hub by a ball bearing assembly. A bare, helical clutch spring is operatively coupled between the hub and pulley for transferring rotational movement from the pulley to the hub during acceleration of the pulley relative to the hub by the serpentine belt and for allowing the hub to overrun the pulley during deceleration of the pulley relative to the hub. A torque limiter, preferably a spring or sleeve, is wrapped about the torsion limiting outward expansion of the torsion isolating the torsion spring from torques above a predetermined limit.
Abstract:
A decoupling isolator comprising a pulley (l0), a hub (12, 20) member comprising a stop(21), a flat wire spiral spring (14) having an end (16) fixedly connected to the pulley (l0), the flat wire spiral spring (14) having another end engageable with the stop to limit a rotation of the pulley.
Abstract:
A pulley assembly (1) for a flexible motor vehicle transmission, comprising a supporting member (2; 4) rotatable about an axis (A), a pulley (3) adapted to cooperate with a belt and connected to the supporting member (2; 4) to be rotatable about said axis (A) with respect to the supporting member (2; 4), elastic spiral means (6) interposed between the supporting element (2; 4) and the pulley (3) and comprising a sliding portion (16) elastically loaded in radial direction against a sliding wall (10) carried by one of either the supporting members (2; 4) or the pulley (3) for tangential force drive coupling pulley (3) to the supporting member (2; 4). In particular, the elastic spiral means (6) comprise a supporting element (61) and sliding portion (16) comprising at least one runner (17; 19) carried by the supporting element (61) and sliding along the sliding walls (10).
Abstract:
A pulley assembly (1) comprises a hub (2) having an axis (A) and adapted to be connected to an accessory member, a pulley (3) having a coupling wall (4) adapted to be coupled to a flexible worm element and mobile so as to relatively rotate with respect to the hub (2), and a disconnectable joint (24) functionally interposed between the hub (2) and the pulley (3) and having a sliding portion (29). Specifically, the disconnectable joint (24) is axially side by side the coupling wall (4).