JPH0175364U

JPH0175364U -

Info

Publication number: JPH0175364U
Application number: JP1987168221U
Authority: JP
Priority date: 1987-11-02
Filing date: 1987-11-02
Publication date: 1989-05-22

Description

[Brief explanation of the drawing]

第１図はこの考案の一実施例によるヘツド移動
機構を示す斜視図、第２図は第１図のＧ―Ｇに沿
う断面図、第３図は第２図においてキヤリツジが
傾いた状態の図、第４図はこの考案の他の実施例
によるヘツド移動機構を示す断面図、第５図は従
来のヘツド移動機構を示す斜視図、第６図は第５
図のＡ―Ａに沿う断面図、第７図は第６図におい
てキヤリツジが傾いた状態の図である。図において、１は円盤状記録媒体、２は信号変
換器、３は移動体、１１はガイド部材、１３ａは
コイルＡ、１３ｂはコイルＢ、１４ａはヨークＡ
、３１は回動部材、３１ａは回動部材３１の他端
部、３４は転動体、３５は弾性部材、４１，４２
は電気的な接点である。なお、図中同一符号は同
一または相当部分を示す。 Fig. 1 is a perspective view showing a head moving mechanism according to an embodiment of this invention, Fig. 2 is a sectional view taken along line GG in Fig. 1, and Fig. 3 is a view of the carriage in a tilted state in Fig. 2. , FIG. 4 is a sectional view showing a head moving mechanism according to another embodiment of this invention, FIG. 5 is a perspective view showing a conventional head moving mechanism, and FIG.
FIG. 7, which is a sectional view taken along line AA in the figure, is a view of the carriage in a tilted state in FIG. 6. In the figure, 1 is a disk-shaped recording medium, 2 is a signal converter, 3 is a moving body, 11 is a guide member, 13a is a coil A, 13b is a coil B, and 14a is a yoke A
, 31 is a rotating member, 31a is the other end of the rotating member 31, 34 is a rolling element, 35 is an elastic member, 41, 42
is an electrical contact. Note that the same reference numerals in the figures indicate the same or corresponding parts.

Claims

[Claims for Utility Model Registration] (1) A movable body movable in the radial direction of the disc-shaped recording medium, which is equipped with a signal converter for recording and reproducing signals on the disc-shaped recording medium, and at least one of the movable bodies. A linear motor for driving the moving body, comprising a driving voice coil provided on a side surface along the moving direction of the moving body, and a magnetic circuit having a yoke passing through the inside of the driving voice coil with a gap. A head moving mechanism comprising: a rotating member rotatably attached to the moving body, a rolling element provided at one end of the rotating member, and a guide member in contact with the rolling element; an elastic member that biases the rolling element in the direction of the guide member, and when the moving body is tilted around an axis along the moving direction, the driving voice coil and the yoke come into contact with each other, or the A head moving mechanism characterized in that the other end of the rotating member comes into contact with the movable body before at least one of the signal converter and the disk-shaped recording medium comes into contact with each other. (2) The head moving mechanism according to claim 1, which is a registered utility model, characterized in that an electrical contact point is provided at the contact portion between the other end of the rotating member and the movable body.