Patent ID: 9637192
Date: 2017-05-02
CPC Classifications: B62J

Claim:
1. A height adjustment device for a bicycle saddle, the height adjustment device comprising a hydraulic cylinder, a vertical post, a support, and a driving mechanism, wherein the hydraulic cylinder has a cylinder shaft which extends into the vertical post to effectuate engagement, and an end of the hydraulic cylinder extends upward to protrude from a top of the vertical post so as to be coupled to the support, thereby allowing a saddle to be disposed on the support; wherein the driving mechanism comprises an electric motor, a deceleration gear train, a sensor, an adjustment disk, a signal receiver, and a battery; wherein the electric motor is connected integrally to the adjustment disk through the deceleration gear train, with the sensor disposed between the deceleration gear train and the adjustment disk, wherein the sensing rod is disposed below the adjustment disk, such that the adjustment disk interacts with a sensing recess of the sensor through the sensing rod, so as to identify a rotation idle and a rotation start of the adjustment disk.