Construction for joining chainstay and seat pipes to a rear dropout in a bicycle frame
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jul 10, 1990
Grant Date -
N/A
app pub date -
Jul 6, 1988
filing date -
Nov 11, 1987
priority date (Note) -
Expired
status (Latency Note)
Importance
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.
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