Detecting device for the number of rotation of a wheel at a bicy

Details Detecting device for the number of rotation of a wheel at a bicy Detecting device for the number of rotation of a wheel at a bicy

1981-11-16

1984-02-14

Haroian, Harry N.

Geometrical instruments

Area integrators

Electrical

235 95R, G01B 312

Patent

active

044308000

ABSTRACT:
A detecting device for detecting the number of rotations of a wheel at a bicycle, comprises a fixing member fixed to a hub shaft and a rotary member fixed to a hub shell supported rotatably to the hub shaft, the fixing member being opposite and close to the rotary member, so that at the opposite portions therebetween are provided a detecting element and actuators, the actuators operating said detecting element to thereby provide a detection of the number of rotations of the wheel by use of rotations of the hub shell.

REFERENCES:
patent: 656476 (1900-08-01), Rockwell
patent: 2761986 (1956-09-01), Wald et al.
patent: 2772832 (1956-12-01), Lassiter
patent: 3858942 (1975-01-01), Humlong
patent: 4308665 (1982-01-01), Losch

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