JPH0481220U - - Google Patents
Info
- Publication number
- JPH0481220U JPH0481220U JP12568390U JP12568390U JPH0481220U JP H0481220 U JPH0481220 U JP H0481220U JP 12568390 U JP12568390 U JP 12568390U JP 12568390 U JP12568390 U JP 12568390U JP H0481220 U JPH0481220 U JP H0481220U
- Authority
- JP
- Japan
- Prior art keywords
- yoke
- base
- inner yoke
- positioning hole
- driving
- 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
- 230000003287 optical effect Effects 0.000 claims description 4
- 230000037431 insertion Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
Landscapes
- Optical Recording Or Reproduction (AREA)
Description
第１図に本考案の実施例の光ピツクアツプ駆動
用磁気回路のベースヨークを示した組立斜視図。
第２図に従来品の光ピツクアツプ駆動用磁気回路
のベースヨークを示した斜視図。
１，１１……ベースヨーク、３，１３……アウ
ターヨーク、４……位置決め穴Ａ、５……ダボ受
穴、６，１６……インナーヨーク、７……位置決
め穴Ｂ、８……ダボ、９……インナーヨーク挿入
位置決め穴、１２……マグネツト。
FIG. 1 is an assembled perspective view showing a base yoke of a magnetic circuit for driving an optical pickup according to an embodiment of the present invention.
FIG. 2 is a perspective view showing a base yoke of a conventional magnetic circuit for driving an optical pickup. 1, 11... Base yoke, 3, 13... Outer yoke, 4... Positioning hole A, 5... Dowel receiving hole, 6, 16... Inner yoke, 7... Positioning hole B, 8... Dowel, 9... Inner yoke insertion positioning hole, 12... Magnet.
Claims (1)
ーヨークとインナーヨークを有する光ピツクアツ
プ駆動用磁気回路のべースヨークにおいて、２個
のアウターヨーク間の低部平面にインナーヨーク
の位置決め穴Ａとダボ受穴とインナーヨーク挿入
位置決め穴を有する打抜きプレス体のベースヨー
クを一体でつくり、ベースヨークと分離したイン
ナーヨークの位置決め穴Ｂとダボを有するコの字
型打抜きプレス体のインナーヨークを前記ベース
ヨークにかしめ、かしめ加工によつて一体とする
ことを特徴とする光ピツクアツプ駆動用磁気回路
のベースヨーク。 In the base yoke of a magnetic circuit for driving an optical pickup, which has an outer yoke and an inner yoke made of a cast product using the lost wax method, the inner yoke is inserted into the positioning hole A of the inner yoke, the dowel receiving hole, and the inner yoke on the lower plane between the two outer yokes. A base yoke of a punched press body having a positioning hole is made integrally, and the inner yoke of a U-shaped punched press body having a positioning hole B and a dowel of an inner yoke separated from the base yoke is caulked to the base yoke, and the caulking process is performed. A base yoke for a magnetic circuit for driving an optical pickup, characterized in that it is integrated into one body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12568390U JPH0481220U (en) | 1990-11-27 | 1990-11-27 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12568390U JPH0481220U (en) | 1990-11-27 | 1990-11-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0481220U true JPH0481220U (en) | 1992-07-15 |
Family
ID=31873273
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12568390U Pending JPH0481220U (en) | 1990-11-27 | 1990-11-27 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0481220U (en) |
-
1990
- 1990-11-27 JP JP12568390U patent/JPH0481220U/ja active Pending
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