Abstract:
A one-way clutch comprising a driver member (10), a driven member (40) disposed radially outward of the driver member, a pawl (20) cooperatively engaged with a receiving portion in the driver member, a recess (41) in the driven member for receiving the pawl (20), a pawl guide (30) engaged with the driven member, and the pawl engaged with the pawl guide, the pawl guide having a first portion and a second portion, the first portion urging the pawl radially outward to engage the recess for a driving condition and the second portion urging the pawl radially inward to disengage the recess for an overrun condition.
Abstract:
A pulley and drive belt system comprising a drive belt, the drive belt comprising a plurality of longitudinally spaced lugs each having an alignment groove dividing the lug into first and second lug segments, the alignment groove having an alignment groove depth, and at least one pulley configured to engage a surface of the drive belt, the at least one pulley comprising, a frame configured to rotate about a rotation axis, the frame having a circular outer rim with opposing sides, a plurality of circumferential teeth extending radially and axially of the rim, each tooth having a tooth width and each tooth being configured to be received between adjacent lugs of the drive belt, and an alignment member having a wire form and extending between adjacent circumferential teeth tops, the alignment member being configured to be received in the alignment groove, and the alignment member extending no further radially from the rotation axis than the circumferential teeth, a debris ejecting opening disposed radially inward of the alignment member between the circumferential teeth, the circumferential teeth, the alignment member and the alignment groove being configured so that with the alignment member received in the alignment groove, the drive belt rides on the circumferential teeth.
Abstract:
A tensioner comprising a sleeve, an adjuster cooperatively engaged with an inner surface of the sleeve, a pivot arm pivotally engaged with the sleeve, a pulley journalled to the pivot arm, a torsion spring engaged with the sleeve for urging the pivot arm, an elastomeric damping ring connected to the arm and in compressive frictional contact between the sleeve and the arm whereby a tangential friction force damps a pivot arm movement, the elastomeric damping ring exerting a radial force on the sleeve, and a retaining member connected to the adjuster and cooperatively engaged with the sleeve whereby the adjuster and sleeve are kept in a predetermined relation.
Abstract:
A belt planetary transmission comprising a sun gear (1) having sun gear teeth (11), a ring gear (3) having ring gear teeth (31), a first toothed belt (4) trained between a first idler (50 and a second idler (51), the first idler and the second idler rotationally connected to ' a carrier (2), the first toothed belt (4) in simultaneous meshing contact with the ring gear teeth and the sun gear teeth, a second toothed belt (40) trained between a third idler (401) and a fourth idler (402), the third idler and the fourth idler rotationally connected to the carrier, the second toothed belt in simultaneous meshing contact with the ring gear teeth and the sun gear teeth, each of the first idler, second idler, third idler and fourth idler having a center of rotation disposed at a radius (R) from a center of rotation (A-A), and the first toothed belt and the second toothed belt are each in continuous meshing contact with the ring gear teeth and the sun. gear teeth through an angle (a) of approximately 90°.
Abstract:
An isolator comprising a shaft (10), a pulley (20) journalled to the shaft on a first bushing (40) and a second bushing (50), the shaft comprising a shaft stop (12) disposed on a shaft radially outer surface (14), the pulley and the shaft rotationally moveable relative to each other, the pulley comprising an inner hub (23), the inner hub having a pulley stop (24) disposed to cooperatively engage the shaft stop, a torsion spring (30) engaged with the shaft and the pulley, the torsion spring exerting a contractive force parallel to an axis of rotation (A-A) in order to retain the pulley on the shaft, a cover member (60) fixed to the shaft, the pulley urged into engagement with the cover member by the torsion spring axial contractive force, and a rubber member (80) disposed on the shaft stop for engaging the pulley stop.
Abstract:
A planetary gear mechanism for a bicycle, and more particularly to a planetary gear mechanism comprising a first planetary mechanism connected coaxially in series to a second planetary mechanism, which second planetary mechanism is connected coaxially in series to a third planetary mechanism, the second planetary mechanism output is a step up in speed from the first planetary mechanism output, the third planetary mechanism output is a step up in speed from the second planetary mechanism output.
Abstract:
A tensioner comprising a base having a shaft, a pivot arm engaged with the shaft, a pulley journalled to the pivot arm, an arcuate damping member frictionally engaged with a pivot arm inner surface, a torsion spring having a first end engaged with the pivot arm, the torsion spring having a second end bearing upon the damping member so that upon loading of the torsion spring in the unwinding direction the damping member is compressed between the second end of the torsion spring and the base thereby causing a normal force to be imparted upon the pivot arm by said damping member.
Abstract:
A debris ejecting sprocket comprising a body (100), a plurality of teeth (101) projecting from the body, a plurality of grooves (102) in alternating arrangement with the teeth, each groove receives a belt tooth, a cavity (103) disposed radially inward from each groove and communicating with the groove, the cavity further comprises a land (111) for supporting the belt, the land disposed between the groove and the cavity, and the cavity comprising a surface (104) disposed at an angle (θ) with respect to an axial direction (A-A).
Abstract:
A variable speed belt comprising an elastomeric body (1), a tensile cord (5) disposed within the elastomeric body and extending in an endless direction, a cog (30) extending from the body, the cog comprising opposing flanks, each flank comprises a first planar surface (10) describing an included angle (alpha), the first planar surface engageable with a sheave, each flank comprises a second planar surface (20) disposed toward a cog tip describing an included angle (beta); and included angle (alpha) is not equal to the included angle (beta).
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.