Bicycle with a collapsible frame

Details Bicycle with a collapsible frame Bicycle with a collapsible frame

1987-09-15

1990-01-23

Hill, Mitchell J.

Land vehicles

Wheeled

Occupant propelled type

280278, 403102, B62K 1500

Patent

active

048953865

ABSTRACT:
A bicycle with collapsible frame, which incorporates front and rear frame posts and at least one cross-beam interconnecting said frame posts. The bicycle, which with one of a few simple hand manipulations, in a few seconds, can be folded into a compact unit. The bicycle has an absolutely rigid frame when the bicycle is in its position of use, and in collapsed position it is only little bulky with a substantial extension in one direction only. The cross-beam of the frame is a two-part cross-beam. The two parts of the cross-beam are articulatedly connected to each other and to the frame posts. The two parts of the cross-beam at folding of the frame are pivotable towards the front and the rear frame posts respectively.

REFERENCES:
patent: 2777711 (1957-01-01), Yokomaki
patent: 3294416 (1966-12-01), Carnielli
patent: 3645212 (1972-02-01), Dahlstrom
patent: 3865403 (1975-02-01), Majerus
patent: 4182522 (1980-01-01), Ritchie
patent: 4440414 (1984-04-01), Wang
patent: 4582335 (1986-04-01), Paioli et al.
patent: 4611945 (1986-09-01), Diego

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