Adjustable frame recumbent bicycle

Details Adjustable frame recumbent bicycle Adjustable frame recumbent bicycle

1994-07-25

1995-05-30

Tyson, Karin L.

Land vehicles

Wheeled

Occupant propelled type

2802881, 2802884, B62K 1500

Patent

active

054195748

ABSTRACT:
A recumbent bicycle designed to be flexible in its geometry, adjustable in wheel base, position of seat, position and angle of front fork steering head tube mechanism, lead of front wheel bearing position on front fork, and/or position of foot pedal crank mechanism, allowing ergometric optimization for riding ease, comfort, stability, safety, etc.
The unique aspect of the present invention is that the relationship between the bicycle seat and the rear wheel can be ergonomically optimized, and then the positioning of other elements can be optimized for the individual rider without altering the rear wheel to rider relationship.

REFERENCES:
patent: 690733 (1902-01-01), Jarvis
patent: 690734 (1902-01-01), Jarvis
patent: 1502975 (1924-07-01), Bailey
patent: 2482472 (1949-09-01), Fried
patent: 4333664 (1982-06-01), Turner et al.
patent: 4502705 (1985-03-01), Weaver
patent: 4572535 (1986-02-01), Stewart et al.
patent: 4618160 (1986-10-01), McElfresh
patent: 4647060 (1987-03-01), Tomkinson
patent: 4786070 (1988-11-01), Adee
patent: 4925203 (1990-05-01), Buckler
patent: 5201538 (1993-04-01), Mayn
Description of ATP Bicycle, 1992 Recumbent Bicycle Buyer's Guide.
Description & Ad of Presto.
Ad of Lightning.

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