Anti-theft device for bicycle seat post
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United States of America Patent
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May 29, 2018
Issued Date -
N/A
app pub date -
Nov 14, 2017
filing date -
Nov 14, 2017
priority date (Note) -
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status (Latency Note)
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Abstract
An anti-theft device for bicycle seat post includes a restriction member connected to the bottom end of the seat post. The restriction member has a disk extending from the outer periphery thereof, and the disk protrudes radially from outer periphery of the bottom end of the seat post. A fastening member is be connected to the top end of the seat tube and the seat post extends through the passage. A first stepped portion and a second stepped portion are respectively defined in the inner periphery of the passage. The first stepped portion is rested on the top end of the seat tube. When the seat post is lifted to its maximum position, the disk of the restriction member is engaged with the second stepped portion so that the seat post cannot be pulled out from the seat tube.
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