William J Hacker

US Patent:

20060162487, Jul 27, 2006

Filed:

Jan 25, 2005

Appl. No.:

11/042369

Inventors:

Eric Chappelear - Milwaukee WI, US
William Hacker - Lisbon WI, US

Assignee:

Harley-Davidson Motor Company Group, Inc. - Milwaukee WI

International Classification:

F16H 53/00

US Classification:

074567000

Abstract:

A composite shifter cam for a sequential transmission includes portions formed of a wear resistant material and portions formed of a lightweight material. The composite structure of the shifter cam allows the heavier, wear resistant material to be used only where it is required, resulting in a lightweight yet durable shifter cam.

US Patent:

63087979, Oct 30, 2001

Filed:

Jul 20, 2000

Appl. No.:

9/620015

Inventors:

William J. Hacker - Lisbon WI
Mark H. Miller - Lisbon WI

Assignee:

Harley-Davidson Motor Company Group - Milwaukee WI

International Classification:

F16H 506

US Classification:

180230

Abstract:

A motorcycle transmission shifter assembly including a cam drum having at least two pins extending therefrom, and a shift mechanism engageable with the pins. The shift mechanism includes a tooth that is operable to engage a first one of the pins to rotate the drum in a first direction and a stop that is operable to engage a second one of the pins to prevent over-rotation of the drum in the first direction. Preferably, the shift mechanism includes a shift pawl and a shift lever and the stop is mounted on either the shift pawl or the shift lever. Additionally, the shift mechanism can include a second stop mounted on the other of the shift pawl or the shift lever, the second stop being operable to engage a third one of the pins to prevent over-rotation of the drum in a second direction.