Adjustable bicycle seat post

Spring devices – Seat support – Velocipede or motorcycle

Patent

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Details

188 67, 248409, 297345, B62J 102

Patent

active

048078565

ABSTRACT:
A seat post is axially slidable in a mounting tube member secured in a bicycle-type seat tube or mast. The seat post is biased upwardly by a main spring within the mounting tube member which as an enlarged collar at the top end. The collar supports lock mechanism including a floating gear, a floating latch member, a toggle lever and a supplemental spring. In a locked position, the gear engages the seat post rack, and gear teeth on the latch member lock the gear against rotation. A cable connects the toggle lever to a release handle on the handlebar. Actuation of the handle unlocks the gear from the seat post rack. In another embodiment, the gear is omitted and the latch member engages the seat post rack directly. In another embodiment, the toggle lever is omitted and the cable moves the latch member directly.

REFERENCES:
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patent: 3796460 (1974-03-01), Potchen
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patent: 4150851 (1979-04-01), Clenfuegos
patent: 4156391 (1979-05-01), Ubento
patent: 4580835 (1986-04-01), Angell et al.

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