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US 4,200,988 AGranted
Wheel alignment checking device
OwnerLee Hunterinventor
Life of this patent
Estimating the term…
Abstract
A vehicle wheel alignment device for determining or checking the toe of the steerable wheels of a vehicle, and in which device the wheel toe measurements are displayed at the rear and front of the wheels to visually show the toe alignment, as well as being displayed, if desired, at a location beneath the vehicle adjacent the tie rod ends where wheel toe is normally adjusted.
Claims6
A vehicle wheel alignment checking device for determining the toe condition of a pair of vehicle wheels, said device comprising:
- support bars mounted one on each of the wheels in positions to extend rearwardly beyond the wheel treads and to extend forwardly beyond the wheel treads;
- retainer means carried by one of said support bars;
- measuring means carried by the other one of said support bars in opposed alignment with said retainer means, said measuring means being a reel tape having casing means enclosing the tape and from which the tape is extendable to have an end held by said opposed retainer means;
- and measurement calculating means cooperating with said measuring means in its extended position for determining the difference in the measured distance rearwardly and forwardly of the wheel treads, said calculating means including an index member establishing the measurement forwardly of the wheel treads, said index member being mounted adjacent said casing means to be adjacent the path of tape extension toward said retainer means;
- and a member positioned adjacent and movable relative to said index member for displaying the measurement obtained rearwardly of the wheel treads in relation to said index member.
2 more elements
A vehicle wheel alignment checking device comprising:
- adapters mountable on the respective wheels of the vehicle to be checked for alignment;
- support means on each adapter with opposite ends extending beyond the tread limits of the respective wheels so as to be in transverse alignment across the vehicle;
- alignment measuring means operatively carried on said opposite ends of one of said support means, each of said measuring means being extensible across the vehicle to adjacent the opposite one of said support means and having lineal increments marked thereon;
- retainer means on said opposite one of said support means for retaining said measuring means in extended positions in front of and behind the treads of the respective wheels;
- first transparent indicator means associated with said measuring means behind the wheel treads for visually scaling the transverse lineal increments of said measuring means in that position;
- second transparent indicator means associated with said measuring means in front of the wheel treads for visually scaling the transverse lineal increments of said measuring means in that position;
- and transparent vernier means operably associated with and movable relative to one of said transparent indicator means for visually showing the difference in said scaled transverse lineal increments.
4 more elements
Dependencies are inferred from the claim text.