Odometer for a vehicle
AssigneeE. Wehrle GmbH
InventorsJorg G. Faller, Horst Kretz, Eberhard Steinhauser
Life of this patent
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Abstract
An odometer i.e. a distance recorder, for a vehicle has a counting mechanism driven by a stepping mechanism which is in turn driven with rotation of a vehicle wheel. The stepping mechanism has a plurality of pawls which reciprocate with wheel rotation and which can advance respective ratchet wheels. For a given vehicle wheel size, one of the pawls is selected to operate its ratchet wheel by a cam means which then disables the or each other pawl from engagement with associated ratchet(s).
Claims6
An odometer comprising a stepping mechanism to be driven with rotation of a wheel of a vehicle, and a counting mechanism connected to be driven by the stepping mechanism, said stepping mechanism comprising:
- at least two ratchet wheels mounted on a shaft;
- said ratchet wheels being of different sizes and corresponding to different vehicle wheel sizes;
- respective pawls cooperating with said ratchet wheels;
- means to reciprocate said pawls upon rotation of the vehicle wheel so as to rotate said ratchet wheels;
- and a device for selectively disabling all except a selected one of said pawls from rotating the associated ratchet wheels, said one pawl being selected according to vehcile wheel size.
Dependencies are inferred from the claim text.