Construction for joining chainstay and seat pipes to a rear drop

Details Construction for joining chainstay and seat pipes to a rear drop Construction for joining chainstay and seat pipes to a rear drop

1988-07-06

1990-07-10

Reese, Randolph A.

Joints and connections

Molded joint

And independent connection

403277, 403290, 403297, 403310, 403334, 2802811, B62K 1900

Patent

active

049403567

ABSTRACT:
The present invention constitutes a construction joint of a bicycle frame comprising a rear dropout body having projecting portions decreasing in taper as they extend away from the body, each projecting portion defining an elongated screw hole extending along a longitudinal axis of the projecting portion, the projecting portion defining a slit extending on both sides of the screw hole; chainstay and seat stay pipes, each surrounding a projecting portion, the chainstay and seat stay pipes having gradually decreasing diameters towards the base end of the projecting portions; a screw or wedge inserted into the screw hole to enlarge the outside circumference of the projecting portion until it fixedly contacts the interior of the chainstay and seat stay pipes; and an adhesive agent spread around the projecting portion of the rear dropout body and inside the chainstay and seat stay pipes.

REFERENCES:
patent: 582948 (1897-05-01), Pinover
patent: 932546 (1909-08-01), Hedstrom
patent: 2080698 (1937-05-01), Clark
patent: 2874937 (1955-11-01), Higgins
patent: 4047731 (1977-09-01), VanAuken
patent: 4479662 (1984-10-01), DeFour et al.
patent: 4598922 (1986-07-01), Kleinebenne et al.
patent: 4705286 (1987-11-01), Lauzier et al.

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