Land vehicles – Wheeled – Occupant propelled type
Patent
1983-06-16
1984-08-21
Peters, Jr., Joseph F.
Land vehicles
Wheeled
Occupant propelled type
3081871, 384138, 384152, B62K 2106
Patent
active
044666292
ABSTRACT:
An improved bicycle headset is disclosed having ball bearing races sealed by O-rings against contamination by dust, dirt, moisture and the like. This bicycle headset includes a lower assembly comprising a lower cup fitted to the lower end of a head tube, a crown cone upon which the shoulder of a front fork bears, a lower ball bearing race positioned between the lower cup and the crown cone, and a lower O-ring seal mounted on the crown cone to isolate the lower ball bearing race from the external environment. Also included, is an upper headset assembly comprising an upper stationary cone fitted to the upper end of the head tube and an upper cup threadedly attached to the upper end of a fork tube. A weatherproof lock nut is tightened down against the top portion of said upper cup so as to lock the position of the upper cup on the fork tube about a handlebar stem, and seal the upper part thereof. An upper ball bearing race is positioned between the upper stationary cone and the upper cup, and an upper O-ring seal mounted on the upper stationary cone below the ball bearing race, to isolate the upper ball bearing race from the external environment.
REFERENCES:
patent: 2674012 (1954-04-01), Noelting
patent: 4068858 (1978-01-01), Harrison et al.
patent: 4189167 (1980-02-01), Dubois
patent: 4303257 (1981-12-01), Perotti et al.
Fugate D. Lynn
Peters Jr. Joseph F.
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