Patent ID: 8136877
Filing Date: 2012-03-20
Classification: B62J

Abstract:
1. A bicycle seat height adjusting assembly comprising: an insert sleeve sized to be slidably receivable within a bicycle's seat tube, said insert sleeve having a top portion, a middle portion and a lower portion, said top portion further having a to surface section; said insert sleeve having a front longitudinal side, said insert sleeve being substantially tubular in shape therein having an inner wall and an outer wall; an axially slidable seat post positionable to different heights within said insert sleeve; said seat post having a top portion, a middle portion and a lower portion, said seat post having a front longitudinal side; said seat post is adapted to support a bicycle seat at said to portion of said seat post; said seat post being substantially tubular in shape therein and having an inner wall and an outer wall; said seat post having a substantially closed top end and an open bottom end; means for preventing said seat post from rotating relative to said insert sleeve; a second tubular structure having a substantially open top end and a substantially closed lower section, said second tubular structure having an outer wall and an inner wall; said second tubular structure is longitudinally positioned substantially within said inner wall that defines said seat post, said second tubular structure being attached to said insert sleeve at said lower section of said second tubular structure; an air seal positioned around said outer wall of said top end of said second tubular structure, wherein air is not able to pass between said inner wall of said tubular seat post and said air seal to form a first air chamber within said seat post and a second air chamber within said second tubular structure; an air valve communicating with said first air chamber of said seat post and said second air chamber of said second tubular structure, said air valve containing means for controlling the supply of pressurized air within said first air chamber of said seat post and said second air chamber of said second tubular structure, said substantially open top end of said second tubular structure allowing the flow of said pressurized air from said second air chamber to said first air chamber, thereby creating a main air spring urging said seat post to thereby move upwardly relative to said second tubular structure; a plurality of post holes formed longitudinally along the front side of said seat post, each of said post holes being outwardly open and having a post hole platform wall at each of said post hole's inner end; a locking means substantially contained within the top portion of said insert sleeve, said locking means being sized and aligned to engage said post holes and operably associated with said seat post to be adjusted by disengaging said locking device from said post holes whereby said seat post is slidably adjusted into position by an operator between locking positions; a cable adapted to extend from said locking means to an actuating lever positioned on bicycle handlebars, to retract said locking means; a maximum height set means, whereby the operator is able to limit the post from rising beyond an exact, personally set, optimum height; an access opening formed through said insert sleeve, whereby said maximum height set means is accessible to allow for adjustment of said maximum height set means; a cable housing is substantially positioned around said cable to thereby enable operation of said actuation lever.