Land vehicles: wheels and axles – Wheel – Detachable wheel section
Patent
1989-02-03
1990-04-17
Stormer, Russell D.
Land vehicles: wheels and axles
Wheel
Detachable wheel section
301 63R, B60B 300
Patent
active
049174401
ABSTRACT:
A method and apparatus (50 or 110) for forming bolt and center-pilot mounting openings (36, 30) in vehicle wheels (16 or 112), particularly styled-disc vehicle wheels. A preformed rim and disc assembly is engaged and fixtured around the rim bead seat (20, 22) with the inboard disc face resting on a lower die assembly (82) and without plastic deformation to the rim or disc. An upper die assembly (52) having an array of bolt hole punches (56) is moved into piercing-and-coining engagement with the disc to form the bolt openings. Continued motion of the upper die assembly pushes the disc and lower die assembly into shearing engagement with a center punch (76 or 76a or 76b) which forms the center-pilot opening. The axes BH, CH, BS) of the bolt openings and/or center-pilot opening and/or bead seats may be aligned or offset from each other.
REFERENCES:
patent: 2041326 (1936-05-01), Eksergian
patent: 2123099 (1938-07-01), Eksergian et al.
patent: 2217081 (1940-10-01), Stough
patent: 2257684 (1941-09-01), Hecht
patent: 2407749 (1946-09-01), Sinclair
patent: 2497031 (1950-02-01), MacPherson
patent: 2548107 (1951-04-01), Horn
patent: 3366421 (1968-01-01), Bradley
patent: 3989307 (1976-11-01), Reppert
patent: 4456308 (1984-06-01), Opel et al.
Motor Wheel Corporation
Stormer Russell D.
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