IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0596200
(2012-08-28)
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등록번호 |
US-8480109
(2013-07-09)
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발명자
/ 주소 |
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출원인 / 주소 |
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대리인 / 주소 |
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인용정보 |
피인용 횟수 :
1 인용 특허 :
13 |
초록
▼
A pulley and drive belt system comprising a drive belt 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 circumfer
A pulley and drive belt system comprising a drive belt 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, 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.
대표청구항
▼
1. 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; andat least one pulley configure
1. 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; andat 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; andan alignment member having an elongate endless 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. 2. The pulley and belt drive system of claim 1 further comprising 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 also rides on the alignment member. 3. The pulley and belt drive system of claim 1 further comprising a debris evacuating path extending between at least one opposing side of the outer rim and the alignment member, the debris evacuating path being free of obstacles between the at least one opposing side of the outer rim and the alignment member. 4. The pulley and belt drive system of claim 1 further comprising the alignment grooves extending longitudinally of the drive belt and the alignment member extending essentially perpendicular to the width of the teeth. 5. The pulley and belt drive system of claim 1 wherein the alignment groove is in the center of the lug and each tooth extends widthwise an equal distance from each rim side. 6. The pulley and belt drive system of claim 1 wherein each tooth extends radially beyond the alignment member from the rotation axis. 7. The pulley and belt drive system of claim 1 wherein the frame of the at least one pulley further comprises a plurality of spokes between the rim and a connection ring, there being an axial off-set of a select distance between the connection ring and the rim, whereby upon attachment of the connection ring to a rotating member a position of the rim along the rotation axis can be varied depending upon which of the opposing rim sides is leading. 8. The pulley and belt drive system of claim 1 comprising at least two pulleys. 9. The pulley and belt drive system of claim 8 wherein each pulley has a different diameter. 10. The pulley and belt drive system of claim 1 further comprising a drive belt having a drive belt width and the alignment groove having an alignment groove width less than ⅓ the drive belt width. 11. The self-aligning pulley and belt drive system of claim 1 further comprising drive belt having a drive belt width and the alignment groove having an alignment groove width less than ¼ the drive belt width. 12. The pulley and belt drive system of claim 1 further comprising drive belt having a drive belt width and the alignment groove having an alignment groove width less than ⅛ the drive belt width. 13. The pulley and belt drive system of claim 1 further comprising drive belt having a drive belt width and the alignment groove having an alignment groove width less than 1/10 the drive belt width. 14. The pulley and belt drive system of claim 1 further comprising a clearance between a width of the alignment groove and a width of the alignment member. 15. The pulley and drive belt system of claim 1 wherein the belt has a width of about 11 mm. 16. A self-aligning 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; andat least one pulley configured to engage 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 from the rim, each tooth having a tooth width parallel to the rotation axis, and each tooth being configured to be received between adjacent lugs of the drive belt;an alignment member having an endless elongate form and extending radially between adjacent circumferential teeth, the alignment member being configured to be received in the alignment groove, and the alignment member radially disposed a distance that extends the alignment member into the alignment groove a distance no greater than the alignment groove depth; anda debris ejecting opening disposed radially inward of the alignment member between the circumferential teeth. 17. A bicycle comprising: a crank set;a rear wheel hub; anda pulley and drive belt system operatively associated with the crank set and the rear wheel hub, the 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 each lug into first and second lug segments;a first pulley configured to engage the surface of the drive belt, the first pulley comprising:a frame configured for connection to the bicycle crank set for rotation 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, the teeth extending axially a tooth width at least equal to a width of the drive belt, and each tooth being configured to be received between adjacent lugs of the drive belt;a second pulley configured to engage the surface of the drive belt, the second pulley comprising:a frame configured for connection to the bicycle wheel hub for rotation 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, the teeth extending axially a tooth width at least equal to a width of the drive belt, and each tooth being configured to be received between adjacent lugs of the drive belt; andat least one of the first and second pulleys further comprising an alignment member having a wire form and extending between adjacent circumferential teeth, the alignment member being configured to be received in the alignment groove, a debris ejecting opening disposed radially inward of the alignment member between the circumferential teeth. 18. A pulley for use with a drive belt, the drive belt comprising a plurality of longitudinally spaced lugs each having an alignment groove dividing each lug into first and second lug segments, the 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 at least equal to a width of the drive belt, and each tooth being configured to be received between adjacent lugs of the drive belt; andan alignment member having a wire form and extending between adjacent circumferential teeth, the alignment member being configured to be received in the alignment groove, the alignment member extending radially no further than the circumferential teeth from the rotation axis, a debris ejecting opening disposed radially inward of the alignment member between the circumferential teeth. 19. The pulley for use with a drive belt of claim 18 further comprising a debris evacuating path extending between at least one opposing side of the outer rim and the alignment member, the debris evacuating path being free of obstacles between the at least one opposing side of the outer rim and the alignment member. 20. The pulley for use with a drive belt of claim 18 further comprising the alignment member having a width less than ⅓ the width of the teeth. 21. The pulley for use with a drive belt of claim 18 further comprising the alignment member having a width less that ¼ the width of the teeth. 22. The pulley for use with a drive belt of claim 18 further comprising the alignment member having a width less than ⅛ the width of the teeth. 23. The pulley for use with a drive belt of claim 18 further comprising the alignment member having a width less than 1/10 the width of the teeth. 24. A kit for a bicycle comprising: a drive belt, the drive belt comprising a plurality of longitudinally spaced inner lugs each having a an alignment groove dividing each lug into first and second lug segments, alignment groove having an alignment groove depth; anda first and a second pulley, each of the first and second pulleys being configured to engage a surface of the drive belt, at least one of the first and second pulleys comprising:a 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 width parallel to the rotation axis, and each tooth being configured to be received between adjacent lugs of the drive belt; andan alignment member having an elongate wire form and extending between adjacent circumferential teeth in a radial direction, the alignment member being configured to be received in the alignment groove, and the alignment member extending no further radially than the top of the circumferential teeth from the rotation axis,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.
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