Shift assist apparatus for a bicycle transmission

Endless belt power transmission systems or components – Control for variable input to output speed-ratio – Condition responsive

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C474S080000, C474S082000

Reexamination Certificate

active

07011590

ABSTRACT:
An assisting apparatus for using power from a moving member to assist the operation of a bicycle transmission comprises a power transfer mechanism, a drive coupling mechanism, and a position maintaining mechanism. The power transfer mechanism moves in one of a first direction and a second direction to upshift the bicycle transmission, and the power transfer mechanism moves in the other one of the first direction and the second direction to downshift the bicycle transmission. The drive coupling mechanism couples the power transfer mechanism to the moving member to move the power transfer mechanism in one of the first direction and the second direction, and the position maintaining mechanism prevents the power transfer mechanism from moving in the other one of the first direction and the second direction.

REFERENCES:
patent: 4143557 (1979-03-01), Wakebe et al.
patent: 5020387 (1991-06-01), Nagano
patent: 5261858 (1993-11-01), Browning
patent: 5358451 (1994-10-01), Lacombe et al.
patent: 5618241 (1997-04-01), Ose
patent: 6607457 (2003-08-01), Kawakami
patent: 6691591 (2004-02-01), Tsumiyama et al.
patent: 6767308 (2004-07-01), Kitamura
patent: 6868752 (2005-03-01), Tetsuka et al.
patent: 6899649 (2005-05-01), Ichida et al.
patent: 2003/0092519 (2003-05-01), Fukuda
patent: 1232940 (2002-08-01), None

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Shift assist apparatus for a bicycle transmission does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Shift assist apparatus for a bicycle transmission, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Shift assist apparatus for a bicycle transmission will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-3547328

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.