Lash-eliminating device for worm-and-gear assembly
AssigneeASUSTeK COMPUTER INC.
InventorChi-Hwa Ho
Life of this patent
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Abstract
A lash-eliminating device for a worm-and-gear assembly. The worm-and-gear assembly includes a worm and a worm gear engaged therewith. The lash-eliminating device comprises a base, a frame, a motor, and a biasing member. The worm gear is disposed on the base. The frame is disposed on the base in a rotatable manner. The motor is disposed in the frame, and includes an output shaft. The output shaft is connected to the worm. The biasing member is disposed on the base in a manner such that the biasing member abuts the frame. Thus, when the worm is rotated by the motor via the output shaft so as to rotate the worm gear, the frame is rotated by the biasing member so that the worm is moved relative to the worm gear to eliminate a lash between the worm and the worm gear.
Claims31
A lash-eliminating device for a worm-and-gear assembly having a worm and a worm gear engaged therewith, comprising:
- a base on which the worm gear is disposed;
- a frame disposed on the base in a rotatable manner;
- a motor, disposed in the frame, having an output shaft, wherein the output shaft is connected to the worm;
- a biasing member disposed on the base in a manner such that the biasing member abuts the frame, whereby when the worm is rotated by the motor via the output shaft so as to rotate the worm gear, the frame is rotated by the biasing member so that the worm is moved relative to the worm gear so as to eliminate a lash between the worm and the worm gear.
An electronic device comprising:
- a base;
- a worm-and-gear assembly having a worm and a worm gear engaged therewith, wherein the worm gear is disposed on the base;
- a frame disposed on the base in a rotatable manner;
- a motor, disposed in the frame, having an output shaft, wherein the output shaft is connected to the worm;
- a moving unit disposed on the base in a moveable manner;
- a transmission unit, connecting to the moving unit and the worm-and-gear assembly respectively, for transmitting a rotation of the motor into a movement so as to move the moving unit;
- and
- a biasing member disposed on the base in a manner such that the biasing member abuts the frame, whereby when the worm is rotated by the motor via the output shaft so as to rotate the worm gear, the frame is rotated by the biasing member so that the worm is moved relative to the worm gear so as to eliminate a lash between the worm and the worm gear.
An optical disc drive comprising:
- a base;
- a worm-and-gear assembly having a worm and a worm gear engaged therewith, wherein the worm gear is disposed on the base;
- a frame disposed on the base in a rotatable manner;
- a motor, disposed in the frame, having an output shaft, wherein the output shaft is connected to the worm;
- an optical pickup disposed on the base in a moveable manner;
- a transmission unit, connecting to the optical pickup and the worm-and-gear assembly respectively, for transmitting a rotation of the motor into a movement so as to move the optical pickup;
- and
- a biasing member disposed on the base in a manner such that the biasing member abuts the frame, whereby when the worm is rotated by the motor via the output shaft so as to rotate the worm gear, the frame is rotated by the biasing member so that the worm is moved relative to the worm gear so as to eliminate a lash between the worm and the worm gear.
Dependencies are inferred from the claim text.