| 摘要 |
A handlebar adjusting device for a bicycle has an erecting rod, a connecting piece, a tube fastening piece and a retractable element. The erecting rod has a first pivotal block and a second pivotal block mounted thereon. The connecting piece has a one end defined with a recess for engaging the first pivotal block and has another end having a third pivotal block. The bar-fastening piece is attached to the connecting piece. The retractable element pivotally connects between the second and third pivotal blocks on the erecting rod and is composed of a fourth pivotal block, outer tube, movable piston, hydraulic valve assembly, piston shaft, compressing device, driving shaft, anti-leaking ring and fifth pivotal block. By retracting the piston shaft of the retractable element, angles between the connecting piece and the erecting rod are adjustable to further adjust heights and to provide anti-vibration efficiency to the handlebar.
|
