JPH0159968U - - Google Patents
Info
- Publication number
- JPH0159968U JPH0159968U JP15386987U JP15386987U JPH0159968U JP H0159968 U JPH0159968 U JP H0159968U JP 15386987 U JP15386987 U JP 15386987U JP 15386987 U JP15386987 U JP 15386987U JP H0159968 U JPH0159968 U JP H0159968U
- Authority
- JP
- Japan
- Prior art keywords
- cam
- motor
- cam surface
- drive
- transmitted portion
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000006073 displacement reaction Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Moving Of Heads (AREA)
- Moving Of The Head To Find And Align With The Track (AREA)
Description
第１図乃至第８図は本考案の実施例を示し、第
１図はヘツド駆動装置の斜視図、第２図はヘツド
駆動装置の平面図、第３図は第２図のＡ―Ａ線断
面図、第４図及び第５図はカムとボールベアリン
グの平面図、第６図はカムの回転角と半径との関
係を示す特性線図、第７図はヘツド駆動回路のブ
ロツク図、第８図はＣＰＵのフローチヤート図で
あり、第９図乃至第１１図は従来例を示し、第９
図はヘツド駆動装置の平面図、第１０図はカムの
平面図、第１１図はカムの回転角と半径との関係
を示す特性線図である。
３０…微動モータ（モータ）、３６…カム、３
６ａ…カム面、３７…ボールベアリング（被伝達
部）、４０…基準位置突起部、４３…ＣＰＵ（モ
ータ制御部）。
1 to 8 show an embodiment of the present invention, in which FIG. 1 is a perspective view of the head driving device, FIG. 2 is a plan view of the head driving device, and FIG. 3 is taken along the line AA in FIG. 2. 4 and 5 are plan views of the cam and ball bearings, FIG. 6 is a characteristic diagram showing the relationship between the rotation angle and radius of the cam, and FIG. 7 is a block diagram of the head drive circuit. FIG. 8 is a flowchart of the CPU, FIGS. 9 to 11 show conventional examples, and FIG.
10 is a plan view of the head driving device, FIG. 10 is a plan view of the cam, and FIG. 11 is a characteristic diagram showing the relationship between the rotation angle and radius of the cam. 30... Fine movement motor (motor), 36... Cam, 3
6a...Cam surface, 37...Ball bearing (transmitted part), 40...Reference position protrusion, 43...CPU (motor control unit).
Claims (1)
制御部と、前記モータの駆動で回転し半径を徐々
に可変するカム面を有するカムと、このカムのカ
ム面に当接してカム面に追従する被伝達部とを有
し、この被伝達部の変位でヘツド位置を可変する
ヘツド駆動装置において、 前記カムに基準位置突起部を設けたことを特徴
とするヘツド駆動装置。[Claims for Utility Model Registration] A motor, a motor control unit that controls the drive of the motor, a cam having a cam surface that rotates under the drive of the motor and gradually changes its radius, and a cam corresponding to the cam surface of the cam. A head driving device having a transmitted portion that contacts a cam surface and follows the cam surface, and that changes the head position by displacement of the transmitted portion, characterized in that the cam is provided with a reference position protrusion. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15386987U JPH0159968U (en) | 1987-10-07 | 1987-10-07 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15386987U JPH0159968U (en) | 1987-10-07 | 1987-10-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0159968U true JPH0159968U (en) | 1989-04-14 |
Family
ID=31430091
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15386987U Pending JPH0159968U (en) | 1987-10-07 | 1987-10-07 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0159968U (en) |
-
1987
- 1987-10-07 JP JP15386987U patent/JPH0159968U/ja active Pending
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