JPS63113243U

JPS63113243U -

Info

Publication number: JPS63113243U
Application number: JP447187U
Authority: JP
Priority date: 1987-01-16
Filing date: 1987-01-16
Publication date: 1988-07-21
Anticipated expiration: 2002-01-16
Also published as: JPH0544915Y2

Description

[Brief explanation of the drawing]

第１図は本考案の一実施例としてのデイスクの
回転駆動装置の構成を示す正面図、第２図は同じ
くその側面図、第３図は同じくその側断面図、第
４図と第５図はそれぞれ他の実施例を示すデイス
クの回転駆動装置の正面図と側断面図、第６図は
更に他の実施例を示すデイスクの回転駆動装置の
正面図、第７図から第９図はそれぞれ第６図のも
のの要部を示す断面図、第１０図は更に他の実施
例を示すデイスクの回転駆動装置の正面図、第１
１図と第１２図はそれぞれ第１０図のものの要部
を示す断面図、第１３図は更に他の実施例を示す
説明図、第１４図と第１５図はそれぞれ従来例を
示す側断面図と平面図である。図において、１は回転軸、２はデイスク、３は
ハブ受台、７は駆動ピン、９は回転軸挿入孔、１
０は駆動ピン挿入孔、１１はアーム、１２は支持
軸、１３は押圧ばね、１４，１５は磁石、１６は
ばねである。なお、図中同一符号は、同一又は相
当部分を示す。 Fig. 1 is a front view showing the configuration of a disk rotation drive device as an embodiment of the present invention, Fig. 2 is a side view thereof, Fig. 3 is a side sectional view thereof, and Figs. 4 and 5. 6 is a front view and a side sectional view of a disk rotation drive device showing other embodiments, FIG. 6 is a front view of a disk rotation drive device showing still another embodiment, and FIGS. 7 to 9 are respectively FIG. 6 is a sectional view showing the main part of the device, FIG. 10 is a front view of a disk rotation drive device showing still another embodiment, and FIG.
1 and 12 are respectively sectional views showing the main parts of the one shown in FIG. 10, FIG. 13 is an explanatory view showing still another embodiment, and FIGS. 14 and 15 are side sectional views showing the conventional example, respectively. and a plan view. In the figure, 1 is a rotating shaft, 2 is a disk, 3 is a hub pedestal, 7 is a drive pin, 9 is a rotating shaft insertion hole, 1
0 is a drive pin insertion hole, 11 is an arm, 12 is a support shaft, 13 is a pressing spring, 14 and 15 are magnets, and 16 is a spring. Note that the same reference numerals in the figures indicate the same or equivalent parts.

Claims

[Claims for Utility Model Registration] (1) A rotating shaft that loosely fits into an insertion hole formed in the center of the disk, a pedestal that rotates with the rotating shaft and supports the disk, and a pedestal that is formed at an eccentric position of the disk. The drive pin has a drive pin that engages with the drive pin insertion hole and transmits a driving force to the disk while centering the disk on the cradle, and the drive pin is inserted into the cradle in either the radial direction or the axial direction. The arm has a restoring force acting in the axial direction for engaging the drive pin with the drive pin insertion hole of the disk on the pedestal, and a disk support. What is claimed is: 1. A disk rotation drive device, characterized in that a force acting in a radial direction for centering on a table is applied, at least one of the forces being constituted by magnetic force from a magnet. (2) The force acting in the radial direction for centering the disk on the pedestal is composed of magnetic force from a magnet,
The disk according to claim 1 of the utility model registration, characterized in that the restoring force acting in the axial direction for engaging the drive pin insertion hole of the disk on the pedestal is constituted by elasticity of an elastic body. Rotary drive device. (3) Both the force acting in the radial direction for centering the disk on the cradle and the restoring force acting in the axial direction to engage the drive pin insertion hole of the disk on the cradle are generated by magnets. The disk rotation drive device according to claim 1, characterized in that it is constructed using magnetic force.