US 7,168,180 B2Granted

Self-powered rotary optical aligning apparatus

OwnerChyi-Yiing Wu, Ming-Chun Huinventors

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Abstract

An optical aligning apparatus includes: a pendulum disk having a laser illuminator mounted in a lower portion of the pendulum disk, a multiple-pole magnet annularly formed on a collar concentrically secured on a shaft of a rotary machine, an electromagnetic coil device secured in the pendulum disk and rotatably disposed around the multiple-pole magnet formed on the collar; whereby upon rotation of the rotary machine to simultaneously rotate the magnet on the collar secured on the shaft relative to the electromagnetic coil device on the pendulum disk which is gravitationally pendent and stationary, the electromagnetic coil will be electromagnetically induced to produce electricity to power the laser illuminator for projecting a laser optical line to an object for alignment or marking in order to be processed by the rotary machine.

Claims5

Dependent claims

A rotary optical aligning apparatus comprising:

a pendulum disk;
an optical illuminator mounted in a lower portion of said disk;
a sleeve adapted to be secured on a shaft of a driving motor of a rotary machine;
with said pendulum disk stationarily pendently hanged on said sleeve on said shaft;
a magnet annularly secured on the sleeve to be simultaneously rotated with the rotation of the shaft;
and
an electromagnetic coil formed in an upper portion of the said pendulum disk, and concentrically disposed around said magnet for rotatably engaging said magnet within said electromagnetic coil;
said electromagnetic coil electrically connected to said illuminator;
whereby upon rotation of said shaft and said magnet, said electromagnetic coil will be electromagnetically induced to produce electricity to power said illuminator for projecting an optical line to an object for alignment or marking to be processed by the rotary machine.

6 more elements

Dependencies are inferred from the claim text.

Facts

Application: 10/816,541Filed 31 Mar 2004
Priority: TW 92205127 U1 Apr 2003
Published: US 2004/0194600 A17 Oct 2004
Granted: 30 Jan 2007
Term ends: Not estimatedThe source records don’t support an estimate.

Classification12 codes

B23D 59/003
For the position of the saw blade: indicating the cutting plane on the workpiece, e.g. by projecting a laser beam
B23Q 3/183
For positioning only: centering devices
B23Q 17/24
Arrangements for observing, indicating or measuring on machine tools: using optics or electromagnetic waves
B27B 5/32
For mounting or securing saw blades or saw spindles: devices for securing circular saw blades to the saw spindle