JPS6432513U

JPS6432513U -

Info

Publication number: JPS6432513U
Application number: JP12774587U
Authority: JP
Priority date: 1987-08-21
Filing date: 1987-08-21
Publication date: 1989-03-01

Description

[Brief explanation of the drawing]

第１図は本考案の一実施例におけるポリゴンミ
ラースキヤナモータのロータの構成を示す断面図
、第２図は同ポリゴンミラースキヤナモータの押
え板の斜視図、第３図は同押え板と波状リングバ
ネの位置決めを示す要部を破断した組立図、第４
図は従来のポリゴンミラースキヤナモータのロー
タの構成を示す断面図である。１……ロータシヤフト、２……ロータボス、６
……波状リングバネ、６ａ……波状リングバネの
内周部、７……ポリゴンミラー、８……押え板、
８ａ……突部、８ｂ……溝、Ａ……突部の外周壁
。 FIG. 1 is a cross-sectional view showing the structure of the rotor of a polygon mirror scanner motor according to an embodiment of the present invention, FIG. 2 is a perspective view of a holding plate of the polygon mirror scanner motor, and FIG. Assembly diagram with main parts broken away showing the positioning of the wavy ring spring, No. 4
The figure is a sectional view showing the structure of a rotor of a conventional polygon mirror scanner motor. 1...Rotor shaft, 2...Rotor boss, 6
... Wavy ring spring, 6a... Inner circumference of wavy ring spring, 7... Polygon mirror, 8... Pressing plate,
8a...Protrusion, 8b...Groove, A...Outer peripheral wall of the protrusion.

Claims

[Claims for Utility Model Registration] (1) A rotor boss provided on a rotor shaft, a polygon mirror disposed on the rotor boss concentrically with respect to the center of rotation, and the polygon mirror is sandwiched between the rotor boss and a wavy ring spring. A holding plate is provided with a protrusion concentric with the center of rotation protruding toward the polygon mirror side in the center of the holding plate, and the wavy ring spring is fitted into this protrusion, and the outer circumferential wall of the protrusion and A polygon mirror scanner motor with the inner circumference of a wavy ring spring in contact. (2) The polygon mirror scanner motor according to claim 1, wherein a groove for disposing an adhesive for balance correction is provided on the surface of the protrusion of the holding plate opposite to the polygon mirror.