Strengthened bicycle frame and tube

Details Strengthened bicycle frame and tube Strengthened bicycle frame and tube

1996-08-19

1998-12-01

DePumpo, Daniel G.

Land vehicles

Wheeled

Occupant propelled type

280274, B62K 1902

Patent

active

058427120

ABSTRACT:
An improved frame involves two main principles which contribute to a superior bicycle frame. The first principle involves the use of a tear drop cross sectionally shaped down tube which is oriented with the small radius side facing forward and down. This orientation of the tube, for a given size of bicycle frame yields an unexpectedly high force to failure characteristic. In the case of a forward shock as by hitting a pothole, rock, or log, the resulting frame will be much more resistant to damage. Secondly, the preferred embodiment of the frame includes three sections, including a teardrop section, a transition section in which the teardrop shape transitions to a round shape, and a length of straight tube. The transition to a round shape, with or without a length of constant circular round shape adds rigidity to the bottom of the frame to provide provide increased lateral support.

REFERENCES:
patent: 4293141 (1981-10-01), Brilando
patent: 5011172 (1991-04-01), Bellanca et al.
patent: 5221102 (1993-06-01), Spangler
patent: 5253890 (1993-10-01), Takamiya et al.
patent: 5478100 (1995-12-01), McDermitt, Jr. et al.

Affiliated with

Also associated with

Rating

Strengthened bicycle frame and tube does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Strengthened bicycle frame and tube, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Strengthened bicycle frame and tube will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2390400