Foldable bicycle frame
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Nov 1, 1994
Grant Date -
N/A
app pub date -
Jul 20, 1993
filing date -
Jul 14, 1993
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A foldable bicycle frame comprises a front frame made up of a head tube, a top tube and a down tube, and a rear frame made up of a seat tube, a bottom bracket tube, a seat stay and a chain stay. The top tube is provided at the rear end thereof with a connection tube to receive therein a seat post. The bottom bracket tube is provided at the center of the front end thereof with an extension tube which faces the front wheel and is pivoted at the front end thereof to the bottom end of the down tube. The front frame and the rear frame are fastened together by means of the seat post which is inserted into the connection tube and the seat tube. The front frame and the rear frame are rotatable in relation to each other when the seat post is pulled out of the seat tube.
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