Motorcycle frame having removable portion

Details Motorcycle frame having removable portion Motorcycle frame having removable portion

2005-01-25

2005-01-25

Morris, Lesley D. (Department: 3611)

Land vehicles

Wheeled

Running gear

C280S781000, C280S291000, C180S219000

Reexamination Certificate

active

06846018

ABSTRACT:
A motorcycle frame including a base portion and a removable portion that both bear operating loads of the motorcycle. The removable portion and base portion are fastened together at a joint comprising a first end cap having a protrusion, a second end cap having a recess, and a fastener having a fastener axis and extending through the first and second end caps. The protrusion and the recess are characterized by angled walls oriented at an acute angle with respect to the fastener axis. The angled wall engagement of the end caps ensures that substantially all shear loads in the joint are born by the end caps and not by the fastener. The motorcycle footpeg position can be changed by replacing the removable portion with a second removable portion having footpeg mounting structure at a different location than the removable portion.

REFERENCES:
patent: 3945463 (1976-03-01), Okano et al.
patent: 4461366 (1984-07-01), Honda
patent: 4660854 (1987-04-01), Suzuki et al.
patent: 4805716 (1989-02-01), Tsunoda et al.
patent: 5248012 (1993-09-01), Kurawaki et al.
patent: 5284221 (1994-02-01), Warne
patent: 5377776 (1995-01-01), Saiki
patent: 5704442 (1998-01-01), Okazaki et al.
patent: 5845728 (1998-12-01), Itoh et al.
patent: 5921339 (1999-07-01), Matsuura
patent: 6446996 (2002-09-01), Horii

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