Transmission mechanism of drilling/milling tool
AssigneeLee Yeong Industrial Co., Ltd.
InventorPan-Chung Hsieh
Life of this patent
Estimating the term…
Abstract
Transmission mechanism of drilling/milling tool, including a motor capable of forward and backward rotating. The motor has a transmission shaft for transmitting the power to the transmission mechanism. The transmission mechanism further includes a movable slide gear, a first and a second driven wheels constantly engaged with the slide gear and a brake or shaft mounted on a driving wheel or the driven wheel. The slide gear is responsive to the forward and backward rotation of the transmission shaft to axially move along the brake or shaft to selectively drivingly engage with the first or second driven wheel. In the forward and backward travel of the drill bit or blade, the drill bit or blade is rotated at high or low rotational speed.
Claims9
A tranamission A transmission mechanism of drilling/milling tool, comprising a motor having a transmission shaft which rotates forward and backward and a transmission mechanism for transmitting and outputting the power of the transmission shaft to a drill bit, said transmission mechanism being characterized by:
- a driving wheel for driving a slide gear;
- a brake on which the slide gear is mounted together with a first and a second driven wheels to form a complex pattern, the slide gear being responsive to the forward and backward rotation of the transmission shaft to axially move along the brake to selectively drivingly engage with one of the first and second driven wheel, whereby in the forward and backward travel of the drill bit, the drill bit is rotated at high or low rotational speed;
- and
- a splined shaft mounted in a hole of an end face of the housing of the motor, the splined shaft having a toothed wheel section engaged with the second driven wheel.
Dependencies are inferred from the claim text.