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Machine translation
1. (WO1981002556) IMPROVEMENTS TO BICYCLES WITH A RECIPROCATING PEDALING MOTION
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/1981/002556    International Application No.:    PCT/FR1981/000026
Publication Date: 17.09.1981 International Filing Date: 03.03.1981
IPC:
B62M 1/24 (2013.01)
Applicants:
Inventors:
Priority Data:
8005140 07.03.1980 FR
Title (EN) IMPROVEMENTS TO BICYCLES WITH A RECIPROCATING PEDALING MOTION
(FR) PERFECTIONNEMENTS AUX BICYCLETTES A MOUVEMENT DE PEDALAGE ALTERNATIF
Abstract: front page image
(EN)Via free wheel mechanisms (18, 19), the pedal cranks (12, 13) of a bicycle drive, during their respective downword travels, a crank axle on which is fixed the conventional toothed disc (7). The motion of the pedal cranks (12, 13) are made symmetric by kinematic means (17) formed by two sectors of conical toothed wheels (31, 32) and a conical reversing gear (33). Stop means (20), with a fixed transverse bar (50) cooperating with the edges cut out parts (51) provided in the cranks (12, 13), limit the angular motions of the cranks to an angle smaller than 130 .
(FR)Par l"intermediaire de mecanismes a roue libre (18, 19), les manivelles (12, 13) d"une bicyclette entrainent, lors de leurs courses descendantes respectives, un axe de pedalier sur lequel est cale le plateau dente usuel (7). Les mouvements des manivelles (12, 13) sont rendus symetriques par des moyens cinematiques (17) constitues de deux secteurs de roues dentees coniques (31, 32) et d"un pignon de renvoi conique (33). Des moyens de butee (20), a barre transversale fixe (50) cooperant avec les bords d"echancrures (51) menagees dans les manivelles (12, 13), limitent les mouvements angulaires de celles-ci a un angle inferieur a 130 .
Designated States:
Publication Language: French (FR)
Filing Language: French (FR)