Bicycle bottom bracket
AssigneeCampagnolo S.r.l.
InventorSebastiano BEVILACQUA
Life of this patent
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Abstract
A bottom bracket having a shaft having a longitudinal axis (X), first and second adapters radially outside of the shaft and associated with respective ends of a bottom bracket housing. Rolling bearings are radially interposed between the shaft and the first adapters with axial locking members axially outside the rolling bearings and in axial abutment on the first and second slewing bearings. A protective screen, positioned between a selected adapter and a radially outer surface of the associated axial locking members in the axial direction and at least partially outside of the first adapter, is fixedly connected to the selected adapter and comprising a sealing member arranged in sliding contact on the radially outer surface of the associated axial locking members.
Claims15
A bottom bracket for bicycles comprising:
- a shaft having a longitudinal axis extending along a predetermined direction and comprising a first axial end portion and a second axial end portion;
- a first adapter radially outside of, and crossed by, said shaft and designed to be associated with a first end of a box for housing the bottom bracket in a bicycle frame;
- a second adapter radially outside of, and crossed by, said shaft and designed to be associated with a second end of a box for housing the bottom bracket in a bicycle frame;
- a first rolling bearing radially interposed between said shaft and said first adapter and a second rolling bearing radially interposed between said shaft and said second adapter;
- first axial locking members, arranged in axially outer position, respectively, with respect to said first and second rolling bearings and in axial abutment on a first slewing bearing of the first rolling bearing and on a first slewing bearing of the second rolling bearing;
- and
- a first protective screen that extends, in a radial direction, between a radially outer surface of the first adapter and a radially outer surface of said first axial locking members and that extends, in an axial direction, at least partially outside of the first adapter, said first protective screen being fixedly connected to said first adapter and comprising a sealing member arranged in sliding contact on said radially outer surface of said first axial locking members.
Dependencies are inferred from the claim text.