JPH0237018B2 - JIKIDEISUKUNOHETSUDOAKUSESUBICHOKIKO - Google Patents
JIKIDEISUKUNOHETSUDOAKUSESUBICHOKIKOInfo
- Publication number
- JPH0237018B2 JPH0237018B2 JP16189382A JP16189382A JPH0237018B2 JP H0237018 B2 JPH0237018 B2 JP H0237018B2 JP 16189382 A JP16189382 A JP 16189382A JP 16189382 A JP16189382 A JP 16189382A JP H0237018 B2 JPH0237018 B2 JP H0237018B2
- Authority
- JP
- Japan
- Prior art keywords
- head
- fixed
- gear
- disk
- head support
- 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
Links
- 239000011295 pitch Substances 0.000 description 4
- 230000001105 regulatory effect Effects 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
- G11B5/54—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head into or out of its operative position or across tracks
- G11B5/55—Track change, selection or acquisition by displacement of the head
- G11B5/5521—Track change, selection or acquisition by displacement of the head across disk tracks
Landscapes
- Moving Of Heads (AREA)
Description
【発明の詳細な説明】
本発明は、磁気シートのヘツドアクセス微調機
構に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a magnetic sheet head access fine adjustment mechanism.
現在、磁気シートに同心円状の記録トラツクを
形成して静止画像を記録再生する電子式カメラが
開発され発表されている。この電子式カメラは、
フイールド周期で回転する磁気シートの径方向に
ビデオヘツドを節度的に変位せしめ、同心円状の
記録トラツクを多数形成している。これら形成さ
れた記録トラツクを再生するには、ビデオヘツド
を所定位置にアクセスしなければならないが、記
録トラツクが細かいピツチで高密度記録されてい
るためこのアクセスには、相当の精度を要求され
る。そこで、ヘツドアクセス機構は複雑とならざ
るを得なかつた。 Currently, electronic cameras that record and reproduce still images by forming concentric recording tracks on a magnetic sheet have been developed and announced. This electronic camera is
The video head is selectively displaced in the radial direction of a magnetic sheet that rotates at a field period, thereby forming a large number of concentric recording tracks. To reproduce these recorded tracks, the video head must be accessed at a predetermined position, but since the recorded tracks are recorded at high density with fine pitches, this access requires considerable precision. . Therefore, the head access mechanism had to be complicated.
本発明は上述する点に鑑み、簡単な構成でビデ
オヘツドのアクセスを微調し得る様構成した新規
且つ有効なヘツドアクセス微調機構を提案せんと
するものである。 In view of the above-mentioned points, the present invention proposes a novel and effective head access fine adjustment mechanism configured to finely adjust video head access with a simple configuration.
以下、本発明を図示せる一実施例に従い説明す
る。本実施例は、シフトピツチを正確に保つてビ
デオヘツドをパルスモータにて節度的に変位せし
め、アクセスの微調は手動によつて為すものであ
り、通常一度微調すれば、シフトピツチが機械的
に精度よく規定されているため、シートを変換す
る迄調整が不要となる様設計されている。 Hereinafter, the present invention will be explained according to an illustrative embodiment. In this embodiment, the shift pitch is maintained accurately and the video head is displaced moderately using a pulse motor, and the access is finely adjusted manually. Normally, once the shift pitch is finely adjusted, the shift pitch can be adjusted mechanically with high precision. Since it is regulated, it is designed so that no adjustment is required until the sheet is converted.
第１図は、本実施例機構を一部切欠いて示す平
面図である。この図より明らかな様にビデオヘツ
ドＨは支持プレート１に接着固定されたままヘツ
ド支持体２に螺着固定されている。このヘツド支
持体２の一方にはガイドレール３が貫通してお
り、他方にはこのガイドレール３と平行に配した
送り螺子４が螺合貫通しており、基台に対してヘ
ツド支持体２はガタなくその状態を規定される。
更に前記送り螺子４の一端はベアリング５を介し
て固定ハウジング６に枢支されており、他端には
回転板７を固定している。この回転板７には、３
個の遊星歯車８，９，１０が等角的に枢支されて
いる。これらの遊星歯車８，９，１０は、第２図
に模式的に示す様に、内方にて太陽歯車１２に噛
合し、外方にてリング歯車１３の内周に噛合す
る。よつて太陽歯車１２の回転は、前記各遊星歯
車８，９，１０に伝達され、前記各遊星歯車８，
９，１０は自転しようとするが、前記リング歯車
１３に噛合することによつて公転し、前記回転板
７を減速駆動することになる。よつて、パルスモ
ータ１１が数個のパルスを受けてシヤフト１１ａ
を所定角度回転せしめると、このシヤフト１１ａ
に固定された前記太陽歯車１２が回転し前記回転
板７を僅か回転せしめ、前記ヘツド支持体２を高
い精度で所定量移動せしめる。従つてビデオヘツ
ドのシフト量は高い精度で規定される。尚、前記
パルスモータ１１が回転するとき前記リング歯車
１３は、前記遊星歯車８，９，１０によつて回動
せしめられることなく回動を規制される必要があ
るが、本実施例では摘当な摩擦力を受けて回動を
規定されており、半固定状態に支持されている。 FIG. 1 is a partially cutaway plan view of the mechanism of this embodiment. As is clear from this figure, the video head H is fixed to the support plate 1 with adhesive and screwed to the head support 2. A guide rail 3 passes through one side of the head support 2, and a feed screw 4 arranged parallel to the guide rail 3 threads through the other side of the head support 2. The state is determined without any looseness.
Further, one end of the feed screw 4 is pivotally supported by a fixed housing 6 via a bearing 5, and a rotating plate 7 is fixed to the other end. This rotating plate 7 has 3
The planetary gears 8, 9, 10 are equiangularly supported. These planetary gears 8, 9, and 10 mesh with the sun gear 12 on the inside and mesh with the inner periphery of the ring gear 13 on the outside, as schematically shown in FIG. Therefore, the rotation of the sun gear 12 is transmitted to each of the planetary gears 8, 9, 10, and
9 and 10 try to rotate, but by meshing with the ring gear 13, they revolve and drive the rotary plate 7 at a reduced speed. Therefore, the pulse motor 11 receives several pulses and rotates the shaft 11a.
When rotated by a predetermined angle, this shaft 11a
The sun gear 12 fixed to the rotor rotates, causing the rotating plate 7 to rotate slightly, thereby moving the head support 2 by a predetermined amount with high precision. Therefore, the shift amount of the video head is defined with high precision. Incidentally, when the pulse motor 11 rotates, the ring gear 13 needs to be restricted from rotating by the planetary gears 8, 9, and 10, but this is not possible in this embodiment. It is supported in a semi-fixed state, and its rotation is regulated by the frictional force.
本実例で、パルスモータ１１は非駆動時シヤフ
ト１１ａの回動を規定しており、太陽歯車１２は
回動することがない。そこで本実施例では、ヘツ
ドアクセス状態を微調するため前記リング歯車１
３外周のノブ１３ａをその摩擦に抗して回動せし
める様にしている。前記リング歯車１３が回動せ
しめられれば前記遊星歯車８，９，１０が回動し
て前記回転板７が回動せしめられ、ビデオヘツド
Ｈが微動せしめられ、正しいヘツドアクセスが可
能になる。一旦、この調整が為されると、前記リ
ング歯車１３は、その位置に規定されるので、以
後、別のトラツクにビデオヘツドがアクセスされ
る場合にも、正しいヘツドアクセスが為され、以
後、微調は不要となる。 In this example, the pulse motor 11 regulates the rotation of the shaft 11a when not driven, and the sun gear 12 does not rotate. Therefore, in this embodiment, in order to finely adjust the head access state, the ring gear 1 is
3. The knob 13a on the outer periphery is rotated against the friction. When the ring gear 13 is rotated, the planetary gears 8, 9, and 10 are rotated, the rotary plate 7 is rotated, and the video head H is slightly moved, allowing correct head access. Once this adjustment is made, the ring gear 13 is fixed at that position, so that even when the video head is subsequently accessed to another track, correct head access will be made and fine adjustments will be made. becomes unnecessary.
よつて、本発明によれば、簡単な構成で高い精
度のヘツドアクセスが保証され、高精度のヘツド
アクセスが可能であるにも拘らず、コストが安価
となりその効果は大である。 Therefore, according to the present invention, highly accurate head access is guaranteed with a simple configuration, and although highly accurate head access is possible, the cost is low and the effects are great.
第１図は本発明の一実施例機構の一部切欠平面
図、第２図は同機構の噛合状態の説明図をそれぞ
れ示す。
主な図番の説明、Ｈ……ビデオヘツド、２……
ヘツド支持体、４……送り螺子、７……回転板、
８，９，１０……遊星歯車、１２……太陽歯車、
１３……リング歯車。
FIG. 1 is a partially cutaway plan view of a mechanism according to an embodiment of the present invention, and FIG. 2 is an explanatory view of the mechanism in an engaged state. Explanation of main drawing numbers, H...Video head, 2...
Head support, 4... feed screw, 7... rotary plate,
8, 9, 10... Planet gear, 12... Sun gear,
13...Ring gear.
Claims (1)
自在に支持するヘツド支持体と、該ヘツド支持体
に螺合し回転により該ヘツド支持体を直線的に変
位せしめる送り螺子と、該送り螺子の端部に固定
される回転円板と、該固定円板に回動自在に枢支
される遊星歯車と、該遊星歯車に歯合する太陽歯
車を回転せしめるパルスモータと、前記太陽歯車
に対し同心的に配され前記遊星歯車を内周に噛合
せしめる半固定のリング歯車とを配して成る磁気
デイスクのヘツドアクセス微調機構。1. A head support that displaceably supports a video head in the radial direction of a magnetic disk, a feed screw that is screwed onto the head support and linearly displaces the head support by rotation, and an end portion of the feed screw. a rotating disk fixed to the fixed disk, a planetary gear rotatably supported on the fixed disk, a pulse motor rotating a sun gear meshed with the planetary gear, and a pulse motor concentrically with respect to the sun gear. A magnetic disk head access fine adjustment mechanism comprising a semi-fixed ring gear and a semi-fixed ring gear that engages the planetary gear on its inner periphery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16189382A JPH0237018B2 (en) | 1982-09-16 | 1982-09-16 | JIKIDEISUKUNOHETSUDOAKUSESUBICHOKIKO |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16189382A JPH0237018B2 (en) | 1982-09-16 | 1982-09-16 | JIKIDEISUKUNOHETSUDOAKUSESUBICHOKIKO |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5952458A JPS5952458A (en) | 1984-03-27 |
| JPH0237018B2 true JPH0237018B2 (en) | 1990-08-22 |
Family
ID=15744003
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16189382A Expired - Lifetime JPH0237018B2 (en) | 1982-09-16 | 1982-09-16 | JIKIDEISUKUNOHETSUDOAKUSESUBICHOKIKO |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0237018B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5772652A (en) * | 1980-10-22 | 1982-05-07 | Kuraray Co | Preparation of aromatic agent |
| JPS6050773A (en) * | 1983-08-31 | 1985-03-20 | Fuji Photo Film Co Ltd | Feeding device for head carrier |
| JPS61210569A (en) * | 1985-03-15 | 1986-09-18 | Tokyo Electric Co Ltd | carrier drive unit |
-
1982
- 1982-09-16 JP JP16189382A patent/JPH0237018B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5952458A (en) | 1984-03-27 |
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