JPH0722740Y2 - Pickup support device - Google Patents

Pickup support device

Info

Publication number
JPH0722740Y2
JPH0722740Y2 JP1989130890U JP13089089U JPH0722740Y2 JP H0722740 Y2 JPH0722740 Y2 JP H0722740Y2 JP 1989130890 U JP1989130890 U JP 1989130890U JP 13089089 U JP13089089 U JP 13089089U JP H0722740 Y2 JPH0722740 Y2 JP H0722740Y2
Authority
JP
Japan
Prior art keywords
pickup
carriage
support shaft
disc
support device
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.)
Expired - Lifetime
Application number
JP1989130890U
Other languages
Japanese (ja)
Other versions
JPH0371413U (en
Inventor
友則 藤原
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sanyo Electric Co Ltd
Original Assignee
Sanyo Electric Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Sanyo Electric Co Ltd filed Critical Sanyo Electric Co Ltd
Priority to JP1989130890U priority Critical patent/JPH0722740Y2/en
Publication of JPH0371413U publication Critical patent/JPH0371413U/ja
Application granted granted Critical
Publication of JPH0722740Y2 publication Critical patent/JPH0722740Y2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Description

【考案の詳細な説明】 (イ) 産業上の利用分野 本考案は、光学式ディスクプレーヤあるいはコンパクト
ディスクプレーヤ等に用いられる光学式ピックアップを
ディスクの半径方向に移動可能に支持するピックアップ
支持装置に関する。
DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application The present invention relates to a pickup supporting device that supports an optical pickup used in an optical disc player, a compact disc player, or the like so as to be movable in a radial direction of a disc.

(ロ) 従来の技術 従来、光学式ディスクプレーヤでは、特開昭63-288478
号(G11B21/02)に示す如く、光学部材及びアクチュエ
ータをケースに収納して構成したピックアップは、ディ
スクの半径方向に移動可能なキャリッジに載置されて、
このキャリッジと一体に半径方向に進退可能になってい
る。
(B) Conventional Technology Conventionally, in an optical disc player, Japanese Patent Laid-Open No. 63-288478
No. (G11B21 / 02), the pickup, which is configured by housing the optical member and the actuator in the case, is mounted on the carriage movable in the radial direction of the disc,
It is possible to move forward and backward in the radial direction integrally with this carriage.

第2図及び第3図には、この従来のキャリッジに対する
ピックアップの載置方法の一例が示されている。この第
2図及び第3図について簡単に説明する。
FIG. 2 and FIG. 3 show an example of a method of mounting the pickup on the conventional carriage. 2 and 3 will be briefly described.

金属製のキャリッジ(1)の両側壁(2)(3)には、
一対の凹部(4a)(4b)が形成され、凹部(4a)の外側
には螺合孔(6)を有する突片部(7)がキャリッジ
(1)に一体形成されている。
On both side walls (2) and (3) of the metal carriage (1),
A pair of recesses (4a) (4b) are formed, and a protrusion (7) having a screw hole (6) is integrally formed with the carriage (1) outside the recess (4a).

ピックアップ(8)の両側面(2)(3)には支軸(8
a)(8b)が固着され、これらの支軸(8a)(8b)を凹
部(4a)(4b)に嵌合させることにより、キャリッジ
(1)にピックアップ(8)を載置し、更に板バネ(9
a)(9b)を側壁(2)(3)の天面に螺合ネジ(10a)
(10b)にて螺着し、板バネ(9a)(9b)の弾性力にて
支軸(8a)(8b)を上側から押さえつけることにより、
ピックアップ(8)にキャリッジ(1)への載置が確実
となる。
On both sides (2) and (3) of the pickup (8), the support shaft (8
a) and (8b) are fixed, and the support shafts (8a) and (8b) are fitted into the recesses (4a) and (4b), so that the pickup (8) is placed on the carriage (1). Spring (9
Screw a) (9b) to the top of side wall (2) (3) with screw (10a)
By screwing at (10b) and pressing the support shafts (8a) (8b) from above with the elastic force of the leaf springs (9a) (9b),
The pickup (8) is reliably placed on the carriage (1).

また、止めネジ(11)を螺合孔(6)に螺合し、これを
締め付けてネジの先端にて支軸(8a)を矢印(A)方向
に押圧し、ピックアップ(8)を側壁(3)の内側面
(3a)に押しつけることにより、ピックアップ(8)の
支軸(8a)(8b)の軸方向、即ちディスクの法線方向の
精度が確保されることになる。尚、(12)はディスクの
半径方向(B)に延在するガイドポール(図示省略)が
嵌合されるガイド溝である。
Further, the set screw (11) is screwed into the screw hole (6), and the screw (11) is tightened to press the support shaft (8a) in the direction of the arrow (A) with the tip of the screw to move the pickup (8) to the side wall ( By pressing against the inner side surface (3a) of 3), the accuracy of the axial direction of the support shafts (8a), (8b) of the pickup (8), that is, the normal direction of the disk is secured. Reference numeral (12) is a guide groove into which a guide pole (not shown) extending in the radial direction (B) of the disc is fitted.

(ハ) 考案が解決しようとする課題 前記従来技術によると、ピックアップをキャリッジに取
り付けるために一対の板バネを別途必要とする。また、
図示省略したが、通常の光学式ビデオディスクプレーヤ
では、ディスクのそりに対処するためにピックアップの
キャリッジ内での傾きを変化させて、常にピックアップ
の光軸をディスクに直交させる所謂チルトサーボが付与
されており、第2図の例では、図示省略のチルトモータ
及びチルト機構により、支軸(8a)(8b)を中心にピッ
クアップを回動させることにより対応できるが、法線方
向の精度確保のための止めネジの締め付け具合によって
ピックアップを回動させる力にバラツキが発生し、締め
着け過ぎるとチルトモータに過大な負荷が加わり、チル
トサーボに悪影響を及ぼす惧れがあった。
(C) Problems to be Solved by the Invention According to the above-mentioned conventional technique, a pair of leaf springs is separately required to attach the pickup to the carriage. Also,
Although not shown in the figure, in a normal optical video disc player, a tilt servo is provided to change the tilt of the pickup in the carriage in order to deal with the warp of the disc and always make the optical axis of the pickup orthogonal to the disc. In the example of FIG. 2, a tilt motor and a tilt mechanism (not shown) can be used to rotate the pickup about the support shafts (8a) and (8b), but it is necessary to ensure accuracy in the normal direction. The force for rotating the pickup varies depending on the tightening condition of the set screw, and if it is tightened too much, an excessive load is applied to the tilt motor, which may adversely affect the tilt servo.

(ニ) 課題を解決するための手段 本考案は、キャリッジの材質を従来の金属から樹脂に替
え、ピックアップに設けた支軸の上側からの押圧を為す
第1押圧部と、一方の支軸をその軸方向に所定の押圧力
で押圧する第2押圧部をキャリッジに一体形成したこと
を特徴とする。
(D) Means for Solving the Problems In the present invention, the material of the carriage is changed from conventional metal to resin, and the first pressing portion for pressing from the upper side of the support shaft provided in the pickup and one support shaft are provided. A second pressing portion that presses in the axial direction with a predetermined pressing force is integrally formed with the carriage.

(ホ) 作用 本考案は上述の如く構成したので、ピックアップのキャ
リッジへの取り付け及びこの取り付け精度の向上を図る
ために不可欠な複数の押圧手段を、全て樹脂製のキャリ
ッジに一体成形できるので、部品点数増加を押さえるこ
とができ、また押圧力も常に一定に保持できる。
(E) Operation Since the present invention is configured as described above, it is possible to integrally form a plurality of pressing means, which are indispensable for mounting the pickup on the carriage and improving the mounting accuracy, on the resin carriage. The increase in points can be suppressed, and the pressing force can always be kept constant.

(ヘ) 実施例 以下、図面に従い本考案の一実施例について説明する。(F) Embodiment An embodiment of the present invention will be described below with reference to the drawings.

第1図は本実施例の斜視図である。尚、第1図におい
て、第2図及び第3図と同一部分には同一符号を付して
説明を省略する。
FIG. 1 is a perspective view of this embodiment. In FIG. 1, the same parts as those in FIGS. 2 and 3 are designated by the same reference numerals and the description thereof will be omitted.

キャリッジ(1)は弾性を有する樹脂にて成形され、両
側壁(2)(3)の天面には、両端がキャリッジ(1)
に一体となった肉薄のアーチ形状のブリッジ(20a)(2
0b)が形成されており、支軸(8a)(8b)を夫々凹部
(4a)(4b)に嵌合してピックアップ(8)をキャリッ
ジ(1)に載置すれば、ブリッジ(20a)(20b)が支軸
(8a)(8b)と当接して上側から押さえ付けることにな
り、ピックアップ(8)のキャリッジ(1)への取り付
けが強固となる。また、ブリッジ(20a)の側縁にはL
字状の突起部(20c)が連設されており、ピックアップ
(8)のキャリッジ(1)への載置状態にて、突起部
(20c)は支軸(8a)と当接して矢印(A)方向に所定
の押圧力で押圧することになり、ピックアップ(8)は
側壁(3)の内側面(3a)に押圧されてディスクの法線
方向の位置決めが為される。
The carriage (1) is made of an elastic resin, and both ends of the top surfaces of the side walls (2) and (3) are the carriage (1).
Thin arch-shaped bridge (20a) (2
0b) is formed, and if the support shafts (8a) (8b) are fitted into the recesses (4a) (4b) and the pickup (8) is placed on the carriage (1), the bridge (20a) ( 20b) comes into contact with the support shafts (8a) and (8b) and presses them from above, so that the pickup (8) is firmly attached to the carriage (1). In addition, L is on the side edge of the bridge (20a).
Character-shaped protrusions (20c) are arranged in a row, and when the pickup (8) is mounted on the carriage (1), the protrusions (20c) come into contact with the support shaft (8a) and the arrow (A). ), The pickup (8) is pressed by the inner side surface (3a) of the side wall (3) to position the disk in the normal direction.

(ト) 考案の効果 上述の如く本考案によれば、ピックアップのキャリッジ
への取り付けに際して、キャリッジ以外に別途部品が不
要となる。また、取り付け構造がキャリッジと一体構造
であるため、その取り付け作業にバラツキが少なく、安
定した押圧力による位置決めが可能となる。
(G) Effect of the Invention According to the present invention as described above, when mounting the pickup on the carriage, no additional component other than the carriage is required. Further, since the mounting structure is integrated with the carriage, there is little variation in the mounting work, and stable positioning with a pressing force becomes possible.

【図面の簡単な説明】[Brief description of drawings]

第1図は本考案の一実施例の斜視図、第2図は従来例の
斜視図、第3図は従来例の平面図である。 (8)……ピックアップ、(8a)(8b)……支軸、
(1)……キャリッジ、(20a)(20b)……ブリッジ、
(20c)……突起部。
FIG. 1 is a perspective view of an embodiment of the present invention, FIG. 2 is a perspective view of a conventional example, and FIG. 3 is a plan view of the conventional example. (8) …… Pickup, (8a) (8b) …… Spindle,
(1) …… Carriage, (20a) (20b) …… Bridge,
(20c) …… Protrusion.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 【請求項1】ディスクに対向する光学式のピックアップ
と、 該ピックアップの両側面に配設され、該ピックアップの
光軸に直交する方向に延在する支軸と、 前記ピックアップを収納し、前記ディスクの半径方向に
進退する樹脂製のキャリッジと、 該キャリッジの両側面に形成され、前記ピックアップが
回動可能となる様に前記支軸が嵌合される凹部を備え、 前記支軸と当接し前記ピックアップの光軸方向に前記支
軸を押圧する第1押圧部と、前記支軸の少なくとも一方
を、前記支軸の軸方向に押圧する第2押圧部を前記キャ
リッジに一体成形したことを特徴とするプックアップ支
持装置。
1. An optical pickup which faces a disc, a spindle which is arranged on both side surfaces of the pickup and extends in a direction orthogonal to an optical axis of the pickup, and the disc which houses the pickup A resin carriage that moves forward and backward in the radial direction, and recesses that are formed on both sides of the carriage and into which the support shaft is fitted so that the pickup can rotate. A first pressing portion that presses the support shaft in the optical axis direction of the pickup and a second pressing portion that presses at least one of the support shafts in the axial direction of the support shaft are integrally formed on the carriage. Pook-up support device.
JP1989130890U 1989-11-09 1989-11-09 Pickup support device Expired - Lifetime JPH0722740Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1989130890U JPH0722740Y2 (en) 1989-11-09 1989-11-09 Pickup support device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1989130890U JPH0722740Y2 (en) 1989-11-09 1989-11-09 Pickup support device

Publications (2)

Publication Number Publication Date
JPH0371413U JPH0371413U (en) 1991-07-19
JPH0722740Y2 true JPH0722740Y2 (en) 1995-05-24

Family

ID=31678434

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1989130890U Expired - Lifetime JPH0722740Y2 (en) 1989-11-09 1989-11-09 Pickup support device

Country Status (1)

Country Link
JP (1) JPH0722740Y2 (en)

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63164856U (en) * 1987-04-14 1988-10-27

Also Published As

Publication number Publication date
JPH0371413U (en) 1991-07-19

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