Upper bearing assembly for a bicycle steerer tube

Details Upper bearing assembly for a bicycle steerer tube Upper bearing assembly for a bicycle steerer tube

1993-05-07

1993-12-07

Braun, Leslie A.

Machine element or mechanism

Control lever and linkage systems

Elements

280279, 384541, B62K 2118

Patent

active

052674851

ABSTRACT:
An upper bearing assembly for a bicycle steerer tube which generally includes a lower race, a ball bearing integral with an upper race and mounted in the lower race, a watertight cover mounted above the ball bearing, a compression nut mounted above the watertight cover, a compression washer mounted around a top portion of a substantially inverted T-shaped cutout of the compression nut, a compression cap mounted above the compression washer and having a skirt portion surrounding the compression washer. The compression washer includes a thinner portion and a thicker portion which has a substantially V-shaped groove formed in an outer periphery thereof. The skirt portion of the compression cap has a threaded hole extending obliquely therein in which a compression bolt locates. The oblique threaded hole aligns with the V-shaped groove in the compression washer. When the compression bolt is driven at a first end thereof and is thus moved inward in the oblique threaded hole, the second end of the compression bolt contacts and compresses the compressing washer at the V-shaped groove, the compression cap, the compression washer, the compression nut, and the steerer tube as a whole are tightly engaged together.

REFERENCES:
patent: 3239292 (1966-03-01), Howe et al.
patent: 3306684 (1967-02-01), Klein, Jr.
patent: 4268055 (1981-05-01), Bell
patent: 4310260 (1982-01-01), Katayama
patent: 4403814 (1983-09-01), Koss et al.
patent: 4436468 (1984-03-01), Ozaki et al.
patent: 4466629 (1984-08-01), Sinyard
patent: 4593924 (1986-06-01), Cabeza
patent: 4854750 (1989-08-01), Larin
patent: 4960342 (1990-10-01), Chi
patent: 5163758 (1992-11-01), Chi

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