Land vehicles: wheels and axles – Wheel – Detachable wheel section
Patent
1978-06-05
1981-08-11
Marmor, Charles A.
Land vehicles: wheels and axles
Wheel
Detachable wheel section
301 36R, 301 63R, 403371, 403372, 411 83, 411116, 411131, 411135, 411144, 411155, 411160, 411395, B60B 316
Patent
active
042830915
ABSTRACT:
A shock and vibration-proof fastener of general application and particularly suitable to hold dual wheels demountably assembled to a cargo vehicle hub. The fastener is designed to isolate the threads thereof from radial and torsion stresses utilizing a split collet encircling the shank of the fastener with its periphery converging toward the collet ends at angles of the order of 4 to 1 relative to the collet axis and having a nesting interference fit with a similarly tapered bore through the parts or wheels to be clamped together. The fastener shank has a threaded well in one end mateable with a cap screw having a self-aligning conical surface on the underside of its head engaging the rim edge of a loose fitting washer. The self-aligning surfaces are preferably provided with a ring of teeth and notches interengaging along helical surfaces having a pitch substantially greater than that of the fastener threads. This feature, acting in concert with a ring of shallow teeth on the washer face in contact with the parts being clamped, positively safeguards against loosening unless unwrenching forces are applied to the washer.
REFERENCES:
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patent: 1518550 (1924-12-01), Putnam
patent: 1607274 (1926-11-01), Hecht
patent: 1883641 (1932-10-01), Eksergian
patent: 1889837 (1932-12-01), Michelin
patent: 2107925 (1938-02-01), Ash
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patent: 2336767 (1943-12-01), Ash
patent: 2516896 (1950-08-01), Manning
patent: 2533707 (1950-12-01), Ash
patent: 2636783 (1953-04-01), Candy et al.
patent: 3241589 (1966-03-01), Enders
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