JPS62180569A - Optical recording and reproducing device - Google Patents

Optical recording and reproducing device

Info

Publication number
JPS62180569A
JPS62180569A JP2148986A JP2148986A JPS62180569A JP S62180569 A JPS62180569 A JP S62180569A JP 2148986 A JP2148986 A JP 2148986A JP 2148986 A JP2148986 A JP 2148986A JP S62180569 A JPS62180569 A JP S62180569A
Authority
JP
Japan
Prior art keywords
rack
optical recording
gear
reproducing head
spring
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
Application number
JP2148986A
Other languages
Japanese (ja)
Inventor
Hirohiko Owaki
洋彦 大脇
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.)
Alps Alpine Co Ltd
Original Assignee
Alps 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 Alps Electric Co Ltd filed Critical Alps Electric Co Ltd
Priority to JP2148986A priority Critical patent/JPS62180569A/en
Publication of JPS62180569A publication Critical patent/JPS62180569A/en
Pending legal-status Critical Current

Links

Landscapes

  • Moving Of Heads (AREA)
  • Moving Of The Head For Recording And Reproducing By Optical Means (AREA)

Abstract

PURPOSE:To maintain stable operation against vibration by fixing a rack holding bracket to an optical recording and reproducing head holding part and thrusting a rack against a gear through a spring. CONSTITUTION:The dynamic power of a driving motor 6 is transmitted to a rack 1 through a worm 12, gears 13, 3, 2. A spring 11 is interposed between the rack 1 and a rack holding bracket 10, and the rack is always thrust against the gear 2 to remove back-lash between the rack 1 and gear 2. The rack holding bracket 10 is fixed to an optical recording and reproducing head holding part and traverses the optical recording and reproducing head holding part parallel to a slide shaft 7. When the optical recording and reproducing head holding part collided against a spindle motor 5 or a box 8 to which the slide shaft 7 is attached, the spring 11 soften the shock of collision.

Description

【発明の詳細な説明】 (産業上の利用分野) 本発明は、光学式記録媒体ヘッドが光学式記録媒体の情
報を正確にトレース駆動させる装置に関するもので、特
に外乱振動に対して高い信頼性をもつ光学式記録再生装
置に関するものである。
Detailed Description of the Invention (Field of Industrial Application) The present invention relates to a device in which an optical recording medium head accurately traces and drives information on an optical recording medium. The present invention relates to an optical recording/reproducing device having the following features.

(従来の技術) 光学的な記録再生装置に於いて、市場ではいろいろな性
能を兼ね備えた機器が有り、中でも持ち運びが可能なも
のや車内での使用が考えられるものとして光学的記録再
生装置が有る。
(Prior Art) There are optical recording and reproducing devices on the market that have a variety of performances, and among them, optical recording and reproducing devices are portable and can be used in cars. .

それらの機器において、機械的なガタを持っていること
は外部からの振動に弱く、性能に大きく不利となること
がわかっている。
It is known that mechanical play in these devices makes them vulnerable to external vibrations, which greatly impairs their performance.

このような従来の持ち運びや車内での使用を考えられる
光学式記録再生装置に於いて駆動モーターからの動力を
歯車を介してラックへ伝達する際、歯車と歯車どの噛み
合いで発生する機械的ガタを取り除く機能を有すること
は必要であり、最終段での歯車とう、りの噛み合いに於
いて、光学式記録再生ヘッド保持部へラックを固定して
いるものが普通であった。
In such conventional optical recording and reproducing devices that can be carried around or used in cars, when the power from the drive motor is transmitted to the rack via the gears, it is necessary to eliminate the mechanical play that occurs due to the meshing of the gears. It is necessary to have a function for removing the head, and the rack is usually fixed to the optical recording/reproducing head holder during the meshing of the gears at the final stage.

(発明が解決しようとする問題点) しかし、このようにラックを光学式記録再生ヘッド保持
部に固定していると第2図に示すように例えばラック(
1)へ動力を伝達する歯車(2)と噛み合っている他の
歯車(3)間でバックラックを取り除いたとしてもラッ
ク(1)と歯車(2)とのバックラックは必ずしも有効
に取シ除かれなかった。
(Problems to be Solved by the Invention) However, if the rack is fixed to the optical recording/reproducing head holding part in this way, for example, the rack (
Even if the back rack is removed between the gear (2) that transmits power to the gear (2) and the other gear (3) meshing with it, the back rack between the rack (1) and the gear (2) cannot necessarily be effectively removed. It wasn't.

また、光学式記録再生ヘッド保持部(4)が記録媒体を
回転駆動するスピンドルモータ(5)や送りモータ(6
)や光学式記録再生ヘッド保持部(4)をスライドさせ
るスライドシャフト(7)を固定している筐体(8)と
大きな外乱振動等の原因によシサーボ誤動が起き衝突す
るアクシデントが起きた際、その衡機によりラック(1
)と歯車(2)間の歯面にかかる応力が極めて大きくな
りギア軸(9)に不必要な負荷がかかったり、歯の損傷
にもつながっていた。
In addition, the optical recording/reproducing head holder (4) is connected to a spindle motor (5) and a feed motor (6) that rotate the recording medium.
) and the housing (8) that fixes the slide shaft (7) that slides the optical recording/playback head holder (4) caused by a servo malfunction due to large external vibrations, etc., causing an accident. When the rack (1
) and the tooth surface between the gear (2) becomes extremely large, resulting in unnecessary load being applied to the gear shaft (9) and damage to the teeth.

本発明の目的は、上記した従来技術の欠点を除き、外部
からの振動に対し安定した動作を維持する光学式記録再
生装置を提供することにある。
SUMMARY OF THE INVENTION An object of the present invention is to provide an optical recording/reproducing device that eliminates the drawbacks of the prior art described above and maintains stable operation against external vibrations.

(問題点を解決するための手段) 本発明はラックを常時光学式記録再生ヘッド保持部に固
定せずに光学式記録再生ヘッド保持部にランク保持ブラ
ケットαIを固定しラック(1)とラック保持ブラケッ
ト間にスプリングαυを挿入しラック(1)とラック保
持ブラケットα〔を自由に摺動させることを特徴とする
(Means for Solving the Problems) The present invention fixes the rank holding bracket αI to the optical recording/reproducing head holder without permanently fixing the rack to the optical recording/reproducing head holder, and the rack (1) and the rack holder are fixed to the optical recording/reproducing head holder. It is characterized in that a spring αυ is inserted between the brackets to allow the rack (1) and the rack holding bracket α to freely slide.

(作用) 上記の技術的手段は次のように作用する。常時ラックは
歯車にバックラックを吸収するように押し付けられてい
る。まだ、筐体と光学式記録再生装置とが衝突した際、
衝突作用が生じる。
(Operation) The above technical means operates as follows. The rack is always pressed against the gear to absorb the back rack. However, when the casing and the optical recording/playback device collide,
Collision effects occur.

(実施例) 以上、本発明の一実施例を第1図および第2図を用いて
説明する。
(Example) An example of the present invention will be described above with reference to FIGS. 1 and 2.

第2図に於いて、(6)は駆動の動力源である送りモー
タであり、動力は先ずモータ(6)の駆動軸に圧入され
ている02のウオームに伝達される。ウオームQ2は歯
車4131と噛み合っていて、そこで発生する機械的ガ
タ(バラクラツー)は同じ条件をもっている歯車を互い
に重ね合わせることによりバネ力等によって相互の反発
力を円周方向へもたせバックラッシュを取り除くことが
出来る。これは、従来バックラッシュを取り除くのに良
く知られている技術である。そこから歯車αりの径の大
きな歯車に伝わりここでもバックラッシュを前説明の技
術によシ取り除くことが可能である。そして、次に歯車
0の上に乗っている歯車(2)に伝わる。そして歯車(
2)と歯車(3)も前記同様の手段にょシバツクラッシ
ュを取シ除いている。そして、この歯車がラック(1)
と噛み合っている。そして、ラック(1)が常時歯車(
2)へ押し付けられていてこの為ラック(1)と歯車(
2)との間のバックラッシュを除去しているわけである
1、 第1図は本発明の一実施例を示し、ラック保持ブラケッ
トとスプリング0υとラック(1)との関係を示す断面
図である。ラックとラック保持ブラケットaQ1間にス
プリングαυを介しており、ラックとラック保持ブラケ
ット(Itl1間にスプリングaυを介してオリ、ラッ
クとう、り保持ブラケットはスムースに摺動するように
なっており、かつ、ラックはラック保持ブラケットに対
し平行状態を保っている。
In FIG. 2, (6) is a feed motor that is a driving power source, and the power is first transmitted to a worm 02 that is press-fitted into the drive shaft of the motor (6). The worm Q2 meshes with the gear 4131, and the mechanical play (balacula two) that occurs there can be eliminated by stacking gears with the same conditions on top of each other and applying mutual repulsive force in the circumferential direction using spring force etc. I can do it. This is a well-known technique for eliminating backlash. From there, the backlash is transmitted to the gear with a larger diameter, and here too, the backlash can be removed by the technique described above. Then, the signal is transmitted to gear (2) which is on top of gear 0. And the gear (
2) and gear (3) also eliminate crushing by the same means as described above. And this gear is the rack (1)
It meshes with the. Then, the rack (1) is constantly connected to the gear (
2) and because of this, the rack (1) and gear (
Figure 1 shows an embodiment of the present invention, and is a sectional view showing the relationship between the rack holding bracket, the spring 0υ, and the rack (1). be. A spring αυ is placed between the rack and the rack holding bracket aQ1, and a spring aυ is placed between the rack and the rack holding bracket (Itl1) so that the cage, the rack, and the holding bracket slide smoothly. , the rack remains parallel to the rack retaining brackets.

そして、う、りはブラケットに対して摺動方向以外はガ
タは少なくなるように組み込まれている。
Furthermore, the ridges are built into the bracket so that there is little play in any direction other than the sliding direction.

そして、ラック保持プラケッ)(lullは光学式記録
再生ヘッド保持部に固定されておシ、最終的には、光学
式記録再生ヘッド保持部をスライドシャフト(7)に平
行にトラバースしている。また、光学式記録再生ヘッド
保持部がスピンドルモータ(5)やスライドシャフト(
力を取り付けている筐体(8)に衝突してしまった際ス
プリングaυによりその衝突を緩和出来る。
The rack holding plaque (lull) is fixed to the optical recording/reproducing head holder, and ultimately traverses the optical recording/reproducing head holder in parallel to the slide shaft (7). , the optical recording/reproducing head holding section is attached to the spindle motor (5) or slide shaft (
If it collides with the casing (8) to which the force is attached, the collision can be alleviated by the spring aυ.

(発明の効果) 以上説明したように本発明によればモーターからの動力
を最終的にラックへ伝達する際、常時ラック(1)を最
終歯車へ押し付けることが出来るのでバックラッシュを
完全に取シ除くことが可能となった。また、誤動作によ
シ筐体と光学式記録再生ヘッド保持部とが衝突しても、
歯車を傷っけたりギア軸へ過大な負荷がかかることがな
いっ
(Effects of the Invention) As explained above, according to the present invention, when the power from the motor is finally transmitted to the rack, the rack (1) can be constantly pressed against the final gear, so backlash can be completely eliminated. It became possible to remove it. In addition, even if the housing and the optical recording/playback head holder collide due to malfunction,
No damage to the gears or excessive load on the gear shaft.

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

第1図は、本発明の一実施例であるラックとスプリング
とラック保持部の機構を示す断面図、第2図は、光学式
記録再生装置を示す平面図である。 (1)−・・ラック      (2)・(3)・(1
31・歯車(4)光学式記録再生ヘッド保持部 (5)・スピンドルモータ (6)・・・送りモータ(
力・・スライドシャフト (8)・・・tJ(9)・・
・ギア軸    Ql・ ラック保持ブラケットaυ 
スプリング    (1カ・・ウメ−−ム第 1I21 第 2 図
FIG. 1 is a sectional view showing a mechanism of a rack, a spring, and a rack holding part according to an embodiment of the present invention, and FIG. 2 is a plan view showing an optical recording/reproducing apparatus. (1)--Rack (2)・(3)・(1
31・Gear (4) Optical recording/reproducing head holder (5)・Spindle motor (6)...Feed motor (
Force...Slide shaft (8)...tJ(9)...
・Gear shaft Ql・Rack holding bracket aυ
Spring (1 unit) Figure 2

Claims (1)

【特許請求の範囲】[Claims] 光学式記録再生ヘッドを搭載し、前記光学式記録再生ヘ
ッドを光学式記録媒体のラジアル方向へ送る機構を具備
した光学式記録再生装置においてラックと該ラックを保
持しているブラケットとの間にスプリングを介したこと
を特徴とする光学式記録再生装置。
In an optical recording and reproducing apparatus equipped with an optical recording and reproducing head and having a mechanism for sending the optical recording and reproducing head in the radial direction of an optical recording medium, a spring is provided between a rack and a bracket holding the rack. An optical recording/reproducing device characterized in that:
JP2148986A 1986-02-03 1986-02-03 Optical recording and reproducing device Pending JPS62180569A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2148986A JPS62180569A (en) 1986-02-03 1986-02-03 Optical recording and reproducing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2148986A JPS62180569A (en) 1986-02-03 1986-02-03 Optical recording and reproducing device

Publications (1)

Publication Number Publication Date
JPS62180569A true JPS62180569A (en) 1987-08-07

Family

ID=12056386

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2148986A Pending JPS62180569A (en) 1986-02-03 1986-02-03 Optical recording and reproducing device

Country Status (1)

Country Link
JP (1) JPS62180569A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0312153A2 (en) * 1987-10-16 1989-04-19 Koninklijke Philips Electronics N.V. Playback apparatus for disc-shaped record carrier
EP0869498A1 (en) * 1997-04-01 1998-10-07 Mitsumi Electric Company Ltd. Sled motor mounting structure and sliding feed mechanism provided with the sled motor mounting structure

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0312153A2 (en) * 1987-10-16 1989-04-19 Koninklijke Philips Electronics N.V. Playback apparatus for disc-shaped record carrier
EP0869498A1 (en) * 1997-04-01 1998-10-07 Mitsumi Electric Company Ltd. Sled motor mounting structure and sliding feed mechanism provided with the sled motor mounting structure

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