Patent ID: 9376159
Filing Date: 2016-06-28
CPC Classification: B62J,B62K,F16B,Y10T

Claim Text:
1. A direction restricting device for a bicycle seat post, comprising: an outer tube axially slideably receiving an inner tube in a slide direction, with each of the outer and inner tubes terminating in opposite free ends, with the outer tube including an annular inner wall having circular cross sections perpendicular to the slide direction and the inner tube including an annular outer wall having circular cross sections perpendicular to the slide direction of a size for slideable receipt in the cross sections of the annular inner wall, wherein one of the annular inner and outer walls is provided with an axial groove extending between the opposite free ends in the slide direction, wherein the axial groove includes first and second axial inner walls spaced a groove distance perpendicular to the slide direction, wherein the first and second axial inner walls are parallel, wherein another of the annular inner and outer walls at a position relative to the axial groove is arranged with a direction restricting element insertable into the axial groove; wherein said direction restricting element includes a recess extending in the slide direction intermediate and spaced from the opposite free ends in the other of the annular inner and outer walls and for a height less than the inner and outer tubes and the axial groove, wherein the direction restricting element further includes a slider with elasticity and a resilient unit, with the slider received in the recess, wherein said slider has first and second axial outer walls abutting with and sliding on the first and second axial inner walls, wherein the first and second axial outer walls of the slider arranged within said axial groove engage with the first and second axial inner walls of said axial groove, and with the resilient unit inserted intermediate the recess and the slider, wherein the first and second axial outer walls of the slider are pushed apart by the resilient unit to push the first and second axial outer walls of the slider towards the first and second axial inner walls of the axial groove, wherein the slider has first and second ends spaced a height in the slide direction, and wherein the slider includes an axial opening extending in the slide direction and spaced inwardly from the first and second ends.