Handle-bar motion unit for exercise bicycles

Details Handle-bar motion unit for exercise bicycles Handle-bar motion unit for exercise bicycles

1986-11-25

1988-06-28

Apley, Richard J.

Undertaking

A63B 2100

Patent

active

047534354

ABSTRACT:
A handle-bar motion unit for an exercise bicycle has a gear wheel provided with an eccentric boss and is coupled to a toothed sprocket connected for rotation with the pedal mechanism of an exercise bicycle; the eccentric boss engages in an eccentric hole in a bush rotatably fitted within the big end of a connecting rod connected to the handle-bar column; the ratchet mechanism transmits forward drive and allows relative rotation of the bush and the boss in the reverse direction in order to select an eccentricity position of the big end with respect to the gear to convert the exercise bicycle from a fixed handle-bar condition to one having a reciprocating movement applied to the handle-bars by rotation of the pedals, the conversion being effected simply by back-pedalling by half of one revolution.

REFERENCES:
patent: 734662 (1903-07-01), Blaisdell
patent: 1916786 (1933-07-01), Elliott
patent: 2565348 (1951-08-01), Brockman et al.
patent: 3915159 (1975-10-01), Simjian

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