Vehicular transmission

Details Vehicular transmission Vehicular transmission

2011-04-19

2011-04-19

Lewis, Tisha D (Department: 3655)

Machine element or mechanism

Gearing

Interchangeably locked

C074S337500, C074S473360

Reexamination Certificate

active

07926373

ABSTRACT:
A vehicular transmission for an internal combustion engine includes lead grooves disposed on an outer periphery of a shift drum having communication portions connecting a pair of gear train establishment portions extending circumferentially along the shift drum. The communication portions include half neutral portions formed at a center thereof, extending circumferentially along the shift drum. The resulting configuration suppresses an engagement noise to a minimum during changing of a gear position through a sliding motion of a shifter.

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patent: 2010/0081547 (2010-04-01), Kobayashi et al.
patent: 2010/0082210 (2010-04-01), Kobayashi et al.
patent: 9-317881 (1997-12-01), None
patent: 2008215554 (2008-09-01), None

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