Machine element or mechanism – Elements – Cams
Reexamination Certificate
2006-05-05
2009-12-15
Joyce, William C (Department: 3656)
Machine element or mechanism
Elements
Cams
C074S055000, C074S337500
Reexamination Certificate
active
07631576
ABSTRACT:
A groove follower (70; 90) for cooperating with a shift groove (48) of a shift drum (44) of a multi-step transmission for a motor vehicle, the groove follower (70; 90) having a vertical crowning and a longitudinal crowning, and the shift groove (48) defining an active diameter along which the groove follower (70; 90) is to be guided in a state in which the groove follower (70; 90) engages into the shift groove (48), and the entirety of all the vertices (SHB) of the vertical crowning forming a guide curve (L) along the circumference of the groove follower, characterized in that the position of the vertices of the vertical crowning is selected such that the guide curve (L) corresponds essentially to the active diameter of the shift drum (44).(FIG.5)
REFERENCES:
patent: 1819889 (1931-08-01), Getz
patent: 5735176 (1998-04-01), Winkam et al.
patent: 199 24 335 (2000-12-01), None
Kapp Stefan
Palme Andreas
Getrag Getriebe- und Zahradfabrik Hermann Hagenmeyer GmbH &
Joyce William C
Knobbe Martens Olson & Bear LLP
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