JPS6235175Y2 - - Google Patents
Info
- Publication number
- JPS6235175Y2 JPS6235175Y2 JP1980113518U JP11351880U JPS6235175Y2 JP S6235175 Y2 JPS6235175 Y2 JP S6235175Y2 JP 1980113518 U JP1980113518 U JP 1980113518U JP 11351880 U JP11351880 U JP 11351880U JP S6235175 Y2 JPS6235175 Y2 JP S6235175Y2
- Authority
- JP
- Japan
- Prior art keywords
- arm
- pick
- portions
- elastic
- base side
- 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
Links
- 239000000853 adhesive Substances 0.000 description 4
- 230000001070 adhesive effect Effects 0.000 description 4
- 238000005452 bending Methods 0.000 description 2
- 239000004020 conductor Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B3/00—Recording by mechanical cutting, deforming or pressing, e.g. of grooves or pits; Reproducing by mechanical sensing; Record carriers therefor
- G11B3/44—Styli, e.g. sapphire, diamond
- G11B3/46—Constructions or forms ; Dispositions or mountings, e.g. attachment of point to shank
Landscapes
- Moving Of Heads (AREA)
Description
【考案の詳細な説明】
本考案はピツクアツプアーム支持機構に係り、
特に、ピツクアツプアームの基部側を弾性的に支
持する弾性腕部に小径部を形成してこれが弾性変
形する区間を規制し、組立上でのバラツキが原因
での信号ピツクアツプ装置の性能のバラツキを解
消したピツクアツプアーム支持機構を提供するこ
とを目的とする。[Detailed description of the invention] The invention relates to a pick-up arm support mechanism,
In particular, a small-diameter portion is formed in the elastic arm that elastically supports the base side of the pick-up arm, and the section where this is elastically deformed is restricted, thereby eliminating variations in the performance of the signal pick-up device caused by variations in assembly. The object of the present invention is to provide a pick-up arm support mechanism.
本出願人は、先にトラツキング制御動作及びジ
ツタ補償動作を行ないうるビデオデイスク用信号
ピツクアツプ装置として、ピツクアツプアームの
基部側に永久磁石片を取り付けてこの部分を弾性
的に支持し、この永久磁石片に関連してトラツキ
ング制御駆動機構とジツタ補償駆動機構とを配設
した構成の装置を提案した。この信号ピツクアツ
プ装置において、ピツクアツプアームの基部側を
弾性的に支持する機構は、ピツクアツプアームを
保持する部分とこの部分より左右に延在する腕部
とよりなるゴム製部材の各腕部の先端側を固定部
材であるカートリツジケースに固定してなる構成
としてある。こゝで、トラツキング制御、ジツタ
補償動作により、更にはデイスク面振れ等によ
り、ピツクアツプアームが微小な範囲内で往復回
動・直動するとき、ゴム製腕部はピツクアツプア
ームの動きに応じて繰り返し弾性変形する。こゝ
で信号ピツクアツプ装置の周波数特性は、ゴム製
腕部中弾性変形する区間の長さ寸法により定まる
ものである。 The present applicant has developed a signal pickup device for a video disk that can perform tracking control operation and jitter compensation operation by attaching a permanent magnet piece to the base side of a pick-up arm and elastically supporting this part. In connection with this, we have proposed a device that has a tracking control drive mechanism and a jitter compensation drive mechanism. In this signal pick-up device, the mechanism that elastically supports the base side of the pick-up arm is the distal end side of each arm of a rubber member consisting of a part that holds the pick-up arm and arm parts that extend left and right from this part. is fixed to a cartridge case which is a fixed member. Here, when the pick-up arm reciprocates or moves linearly within a minute range due to tracking control, jitter compensation operation, or disk surface runout, the rubber arm repeatedly moves in response to the movement of the pick-up arm. Deforms elastically. The frequency characteristics of the signal pickup device are determined by the length of the elastically deformed section of the rubber arm.
従来、腕部のケースへの結合は、腕部先端側を
ケースの切欠内に嵌合してこの部分を接着剤によ
り接着固定する構成としてある。このため、接着
剤をケースの外側又は内側に塗布するかによつ
て、ゴム製腕部中弾性変形する部分の長さが異な
ることになり、これが原因で組立てられた信号ピ
ツクアツプ装置に周波数特性上のバラツキが生ず
るという問題点があつた。 Conventionally, the arm is connected to the case by fitting the distal end of the arm into a notch in the case and fixing this portion with an adhesive. For this reason, depending on whether the adhesive is applied to the outside or inside of the case, the length of the elastically deformed part of the rubber arm will differ, and this will cause the assembled signal pickup device to suffer from frequency characteristics. There was a problem that variations occurred.
本考案は上記の問題点を解決したものであり、
以下図面と共にその一実施例について説明する。 This invention solves the above problems,
An embodiment will be described below with reference to the drawings.
第１図は本考案になるピツクアツプアーム支持
機構の一実施例をこれが適用してある信号ピツク
アツプ装置と併せて示す一部横断平面図、第２図
は第１図中−線に沿う縦断面図、第３図は本
考案になるピツクアツプアーム支持機構の一実施
例の分解斜視図、第４図はピツクアツプアーム回
動時での本考案機構の要部の動作状態を拡大して
示す図である。 Fig. 1 is a partially cross-sectional plan view showing an embodiment of the pick-up arm support mechanism according to the present invention together with a signal pick-up device to which the mechanism is applied, and Fig. 2 is a longitudinal cross-sectional view taken along the line - in Fig. 1. , FIG. 3 is an exploded perspective view of one embodiment of the pick-up arm support mechanism of the present invention, and FIG. 4 is an enlarged view showing the operating state of the main parts of the mechanism of the present invention when the pick-up arm is rotated. .
信号ピツクアツプ装置１は、ビデオデイスク２
の上側をこの半径方向に移動するハウジング３内
に組込まれており、再生針４が矢印Ａ方向に回転
するデイスク２のトラツクを相対的に添接走査し
て情報信号を再生する。 The signal pickup device 1 has a video disk 2.
The reproducing needle 4 is installed in a housing 3 that moves in the radial direction above the disk 2, and a reproducing needle 4 scans the track of the disk 2 rotating in the direction of arrow A relative to the disk 2 to reproduce the information signal.
信号ピツクアツプ装置１は、ピツクアツプアー
ム５、トラツキング制御駆動部６、ジツタ補償用
コイル７、針昇降用コイル８等よりなる。 The signal pick-up device 1 includes a pick-up arm 5, a tracking control drive section 6, a jitter compensation coil 7, a needle raising/lowering coil 8, and the like.
ピツクアツプアーム５は基部側をゴム製支持部
材９の筒状部９ａに嵌入されて保持され、筒状部
９ａより左右に突出延在する腕部９ｂ，９ｃを介
してカートリツジケース１０内に弾性的に支持さ
れている。またピツクアツプアーム５の基部側に
は、永久磁石片１１が圧入してある。カートリツ
ジケース１０はガイド部材１２内に差し込まれて
装着してあり、この状態でピツクアツプアーム５
及び永久磁石片１１はトラツキング制御駆動部６
等に対して所定の位置関係となると共に、再生針
４より引き出された金属リボン１３が共振器１４
の中心導体１５と接続される。 The pick-up arm 5 is held with its base side fitted into a cylindrical portion 9a of a rubber support member 9, and is elastically inserted into the cartridge case 10 via arm portions 9b and 9c that protrude left and right from the cylindrical portion 9a. is widely supported. Further, a permanent magnet piece 11 is press-fitted into the base side of the pick-up arm 5. The cartridge case 10 is inserted into the guide member 12 and installed, and in this state the pick-up arm 5
and the permanent magnet piece 11 is the tracking control drive section 6
etc., and the metal ribbon 13 pulled out from the regeneration needle 4 connects to the resonator 14.
is connected to the center conductor 15 of.
トラツキング制御駆動部６は、一のトラツキン
グコイル６ａとヨーク組立体６ｂとよりなり、ハ
ウジング３にネジ止めしてある基台１６に固定し
てある。 The tracking control drive unit 6 includes a tracking coil 6a and a yoke assembly 6b, and is fixed to a base 16 screwed to the housing 3.
ゴム製支持部材９は、各腕部９ｂ，９ｃの先端
側の鍔付細径部９ｂ−１，９ｃ−１をカートリツ
ジケース１０の垂下壁１０ａ，１０ｂの切欠部１
０ｃ，１０ｄ内に嵌入させこの部分に接着剤を塗
布して固定してあり、ケースの両側垂下壁間に横
架してある。 The rubber support member 9 has flanged narrow-diameter portions 9b- 1 , 9c- 1 at the tip ends of the arms 9b, 9c, which are fitted into the notches 1, 1 of the hanging walls 10a, 10b of the cartridge case 10.
The case is fitted into the recesses 10c and 10d and fixed in place with adhesive, and is hung horizontally between the hanging walls on both sides of the case.
９ｂ−２，９ｃ−２は本考案の要部をなす小径
部（くびれ部）であり、夫々腕部９ｂ，９ｃ中左
右対称な位置に形成してある。本実施例では、小
径部９ｂ−２，９ｃ−２は腕部９ｂ，９ｃの固定
部である切欠部１０ａ，１０ｂに近接した位置に
ある。なお、小径部９ｂ−２，９ｃ−２は後述す
るように、腕部９ｂ，９ｃがピツクアツプアーム
５の回動等に伴なつて弾性変形するときの弾性変
形する区間の終点を明確にする機能を有するもの
である。 Reference numerals 9b- 2 and 9c- 2 are small diameter portions (necked portions) that form the main part of the present invention, and are formed at symmetrical positions in the arm portions 9b and 9c, respectively. In this embodiment, the small diameter portions 9b- 2 and 9c- 2 are located close to the notches 10a and 10b, which are the fixing portions of the arm portions 9b and 9c. As will be described later, the small diameter portions 9b- 2 and 9c- 2 have a function of clarifying the end point of the elastically deformed section when the arm portions 9b and 9c are elastically deformed as the pick-up arm 5 rotates. It has the following.
第４図は、デイスク再生モード時にトラツキン
グ制御駆動部６の作用によりピツクアツプアーム
５が回動したときでの腕部９ｂ，９ｃの弾性変形
の状態を示す図である。ピツクアツプアーム５が
基部側を中心に反時計方向に回動すると、ゴム製
腕部９ｂ，９ｃは二点鎖線で示すように撓む。即
ち、筒状部９ａの回動により、腕部９ｂ，９ｃに
はその基部側に撓み力が作用されこれが先端側に
向つて伝わることになるが、くびれ部９ｂ−２，
９ｃ−２の個所が容易に撓むことになり、この位
置より先端側への撓み力の伝播は実質上無くなる
ことになる。従つて、腕部９ｂ，９ｃは、鍔付細
径部９ｂ−１，９ｃ−１と切欠部１０ｃ，１０ｄ
との間での接着剤の塗布位置のバラツキに無関係
に、常に両くびれ部９ｂ−２と９ｃ−２との間の
部分が撓むことになる。然して、トラツキング制
御動作に関連してのピツクアツプアーム５の支持
部の周波数特性は、組立上のバラツキの影響なく
常に一定となる。 FIG. 4 is a diagram showing the state of elastic deformation of the arm portions 9b and 9c when the pickup arm 5 is rotated by the action of the tracking control drive section 6 in the disc playback mode. When the pick-up arm 5 rotates counterclockwise around the base side, the rubber arms 9b and 9c bend as shown by the two-dot chain line. That is, due to the rotation of the cylindrical portion 9a, a bending force is applied to the base side of the arm portions 9b and 9c, and this is transmitted toward the distal end side, but the constricted portion 9b- 2 ,
The point 9c- 2 is easily bent, and the propagation of bending force from this position toward the distal end side is substantially eliminated. Therefore, the arm portions 9b, 9c have flanged narrow diameter portions 9b- 1 , 9c- 1 and cutout portions 10c, 10d.
Regardless of variations in the adhesive application position between the two, the portion between the constricted portions 9b- 2 and 9c- 2 always bends. Therefore, the frequency characteristics of the support portion of the pick-up arm 5 in relation to the tracking control operation are always constant regardless of assembly variations.
またジツタ補償動作時にはピツクアツプアーム
５は軸方向に往復変位するが、このときでのゴム
製支持部材９は、上記の場合と同様に、両側腕部
９ｂ，９ｃ中くびれ部９ｂ−２と９ｃ−２との間
の区間が撓み変形する。また、ピツクアツプアー
ム５がデイスク面振れに応じて回動するときに
は、主にくびれ部９ｂ−２，９ｃ−２が捩れ変形
する。即ちこれらの場合にも、ゴム製支持部材９
はケース１０に対する固定位置とは無関係に、弾
性変形することになる。 Further, during the jitter compensation operation, the pick-up arm 5 reciprocates in the axial direction, but at this time, the rubber support member 9 has the constricted portions 9b-2 and 9c- 2 in the middle of both arm portions 9b and 9c, as in the above case. The section between 2 and 2 is deflected and deformed. Further, when the pick-up arm 5 rotates in accordance with the disk surface runout, mainly the constricted portions 9b- 2 and 9c- 2 are torsionally deformed. That is, in these cases as well, the rubber support member 9
is elastically deformed regardless of the fixed position with respect to the case 10.
然して、信号ピツクアツプ装置の性能に直接影
響するピツクアツプアーム５の支持機構の周波数
（共振）特性は、組立のバラツキにより影響され
ることなく一義的に定まることゝなり、性能が一
定し品質が一様化した信号ピツクアツプ装置が得
られることゝなる。 Therefore, the frequency (resonance) characteristics of the support mechanism of the pick-up arm 5, which directly affects the performance of the signal pick-up device, are uniquely determined without being affected by assembly variations, so that the performance is constant and the quality is uniform. This means that a signal pickup device with improved performance can be obtained.
なお、上記実施例において、くびれ部９ｂ−
２，９ｃ−２はＶ字状としてあるが、これに限る
ことはなく、コ字状のくびれ部としても同様の効
果が得られる。 In addition, in the above embodiment, the constricted portion 9b-
2 and 9c- 2 have a V-shape, but the shape is not limited to this, and the same effect can be obtained by using a U-shaped constriction.
上述の如く、本考案になるピツクアツプアーム
支持機構によれば、アームの基部側を保持する筒
状部より左右方向に延在して上記アームを弾性的
に支持する左右の弾性腕部の途中に小径部を形成
し、この小径部がアーム変位時に弾性腕部が弾性
変形する区間を限定する構成としてあるため、弾
性腕部のケース等の固定部材に対する固定位置の
バラツキ等により影響されずに、ピツクアツプア
ーム系の周波数特性を一様に定めることが出来、
従つて組立のバラツキによつても性能が変わらず
に一様とされた信号ピツクアツプ装置が得られる
等の特長を有する。 As described above, according to the pick-up arm support mechanism according to the present invention, there is a cylindrical portion in the middle of the left and right elastic arm portions that extend in the left-right direction from the cylindrical portion that holds the base side of the arm and elastically support the arm. Since a small diameter portion is formed and this small diameter portion limits the area in which the elastic arm is elastically deformed when the arm is displaced, it is not affected by variations in the fixing position of the elastic arm with respect to a fixing member such as a case. The frequency characteristics of the pick-up arm system can be uniformly determined,
Therefore, it is possible to obtain a signal pickup device whose performance remains uniform even if there are variations in assembly.
第１図は本考案になるピツクアツプアーム支持
機構の一実施例をこれが適用してある信号ピツク
アツプ装置と併せて示す一部横断平面図、第２図
は第１図中−線に沿う縦断面図、第３図は本
考案になるピツクアツプアーム支持機構の一実施
例の分解斜視図、第４図はピツクアツプアーム回
動時での本考案機構の要部の動作状態を拡大して
示す図である。
１……信号ピツクアツプ装置、２……ビデオデ
イスク、３……ハウジング、４……再生針、５…
…ピツクアツプアーム、６……トラツキング制御
駆動部、７……ジツタ補償用コイル、９……ゴム
製支持部材、９ａ……筒状部、９ｂ，９ｃ……腕
部、９ｂ−１，９ｃ−１……鍔付細径部、９ｂ−
２，９ｃ−２……小径部（くびれ部）、１０……
カートリツジケース、１０ｃ，１０ｄ……切欠
部、１１……永久磁石片。
Fig. 1 is a partially cross-sectional plan view showing an embodiment of the pick-up arm support mechanism according to the present invention together with a signal pick-up device to which the mechanism is applied, and Fig. 2 is a longitudinal cross-sectional view taken along the line - in Fig. 1. , FIG. 3 is an exploded perspective view of one embodiment of the pick-up arm support mechanism of the present invention, and FIG. 4 is an enlarged view showing the operating state of the main parts of the mechanism of the present invention when the pick-up arm is rotated. . DESCRIPTION OF SYMBOLS 1... Signal pickup device, 2... Video disk, 3... Housing, 4... Playback needle, 5...
...Pickup arm, 6...Tracking control drive unit, 7...Jitter compensation coil, 9...Rubber support member, 9a...Cylindrical part, 9b, 9c...Arm part, 9b- 1 , 9c- 1 ...Narrow diameter part with flange, 9b-
2,9c - 2 ...Small diameter part (neck part), 10...
Cartridge case, 10c, 10d...notch, 11...permanent magnet piece.
Claims (1)
と、該筒状部より左右方向に延在して先端側が固
定部材に固定された弾性腕部とよりなる弾性支持
部材を有してなる機構において、該左右の弾性腕
部の途中に、ピツクアツプアームの変位時に該弾
性腕部の弾性変形する区間を限定するための小径
部を形成してなるピツクアツプアーム支持機構。 In a mechanism comprising an elastic support member consisting of a cylindrical part that holds the base side of the pick-up arm, and an elastic arm part that extends from the cylindrical part in the left-right direction and whose distal end side is fixed to a fixed member, A pick-up arm support mechanism in which a small diameter portion is formed in the middle of the left and right elastic arms to limit an area in which the elastic arms are elastically deformed when the pick-up arm is displaced.
Priority Applications (8)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1980113518U JPS6235175Y2 (en) | 1980-08-11 | 1980-08-11 | |
| DE3131118A DE3131118C2 (en) | 1980-08-11 | 1981-08-06 | Signal pickup device for a device for reproducing a rotatable recording medium |
| US06/291,047 US4410976A (en) | 1980-08-11 | 1981-08-07 | Signal pickup device in a rotary recording medium reproducing apparatus |
| FR8115359A FR2488432B1 (en) | 1980-08-11 | 1981-08-07 | DEVICE FOR READING SIGNALS IN A ROTARY RECORDING MEDIUM APPARATUS |
| AU73940/81A AU539056B2 (en) | 1980-08-11 | 1981-08-10 | Cantilever signed pick-up device |
| CA000383538A CA1149941A (en) | 1980-08-11 | 1981-08-10 | Signal pickup device in a rotary recording medium reproducing apparatus |
| KR2019810005624U KR850002942Y1 (en) | 1980-08-11 | 1981-08-11 | Signal pick up device |
| GB8124493A GB2084378B (en) | 1980-08-11 | 1981-08-11 | Mounting signal pickup devices in disc players |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1980113518U JPS6235175Y2 (en) | 1980-08-11 | 1980-08-11 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5738384U JPS5738384U (en) | 1982-03-01 |
| JPS6235175Y2 true JPS6235175Y2 (en) | 1987-09-07 |
Family
ID=29474531
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1980113518U Expired JPS6235175Y2 (en) | 1980-08-11 | 1980-08-11 |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JPS6235175Y2 (en) |
| KR (1) | KR850002942Y1 (en) |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52103802U (en) * | 1976-02-05 | 1977-08-06 |
-
1980
- 1980-08-11 JP JP1980113518U patent/JPS6235175Y2/ja not_active Expired
-
1981
- 1981-08-11 KR KR2019810005624U patent/KR850002942Y1/en active
Also Published As
| Publication number | Publication date |
|---|---|
| KR850002942Y1 (en) | 1985-12-09 |
| JPS5738384U (en) | 1982-03-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR100236608B1 (en) | Head actuator | |
| US4170783A (en) | Signal pickup device for reproducing an information signal recorded on a track of a rotary recording medium | |
| JP2684762B2 (en) | Objective lens drive | |
| EP0227361B1 (en) | Transducer element assembly | |
| CN101539162A (en) | Fixing component | |
| JP3945760B2 (en) | Magnetic head device, magnetic head support mechanism, and magnetic recording device | |
| JPS6235175Y2 (en) | ||
| US4410976A (en) | Signal pickup device in a rotary recording medium reproducing apparatus | |
| US2591996A (en) | Moving-coil phonograph pickup | |
| JP3551803B2 (en) | Magnetic disk drive | |
| JP3075881B2 (en) | Guide shaft fixing device | |
| JPS5821324B2 (en) | Electromagnetic pick-up | |
| JPS613334A (en) | Objective lens driving device | |
| JPS6227451B2 (en) | ||
| KR100440795B1 (en) | Integrated-type latch device of a hard disk drive, which safely fixed to a lower yoke | |
| JPS5847575Y2 (en) | Pickup device for rotating recording media | |
| JPH0132178Y2 (en) | ||
| US2028873A (en) | Electrical translation device | |
| JPH0110756Y2 (en) | ||
| JPH053641B2 (en) | ||
| JPS594782B2 (en) | Signal pickup device for rotating recording media playback device | |
| JPH1079129A (en) | Objective lens actuator | |
| JPH055240B2 (en) | ||
| JPS5847780B2 (en) | Signal pickup device for rotating information recording medium playback device | |
| JPS5819751Y2 (en) | Cantilever device for reproducing rotating recording media |