Method of fixing polygon mirror and polygon scanner motor
AssigneeSeiko Instruments Inc.
InventorsKatsushige Konno, Kaoru Kaneko, Tetsuo Yamamoto
Life of this patent
Estimating the term…
Abstract
A polygon scanner motor has a polygon mirror having an outer periphery, a mirror surface for scanning light arranged around the outer periphery, and a setting hole having an inner periphery. A rotor has a projection having a plastically deformable edge portion. The polygon mirror is positioned relative to the rotor so that the edge portion of the projection is disposed opposite a surface portion of the inner periphery of the setting hole proximate a center of the inner periphery in the axial direction thereof. The edge portion of the projection is plastically deformed against the surface portion of the inner periphery of the setting hole to thereby connect the polygon mirror to the rotor.
Claims14
A method of connecting a polygon mirror to a rotor, comprising the steps of:
- providing a polygon mirror having around an outer periphery thereof a mirror surface for scanning light, and a setting hole having an inner periphery;
- providing a rotor having a projection having a plastically deformable edge portion;
- positioning the polygon mirror relative to the rotor so that the edge portion of the projection is disposed opposite a surface portion corresponding to an approximate center of the inner periphery of the setting hole in the axial direction of the inner periphery;
- and
- plastically deforming the edge portion of the projection against the surface portion of the inner periphery of the setting hole to thereby connect the polygon mirror to the rotor.
A polygon scanner motor comprising:
- a polygon mirror having around an outer periphery thereof a mirror surface for scanning light, and a setting hole having an inner periphery and a surface portion corresponding to an approximate center of the inner periphery in an axial direction thereof;
- and
- a rotor having a projection having a plastically deformed edge portion bonded to the surface portion of the setting hole of the polygon mirror.
Dependencies are inferred from the claim text.