JPS5938955A - Magnetic head actuator of tape recorder - Google Patents

Magnetic head actuator of tape recorder

Info

Publication number
JPS5938955A
JPS5938955A JP57149716A JP14971682A JPS5938955A JP S5938955 A JPS5938955 A JP S5938955A JP 57149716 A JP57149716 A JP 57149716A JP 14971682 A JP14971682 A JP 14971682A JP S5938955 A JPS5938955 A JP S5938955A
Authority
JP
Japan
Prior art keywords
head
motor
cam
movable plate
magnetic head
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
JP57149716A
Other languages
Japanese (ja)
Inventor
Sumitake Yoshida
吉田 純威
Minoru Mukoda
向田 稔
Mamoru Ito
守 伊藤
Norio Umehara
紀夫 梅原
Koji Nakamura
中村 弘二
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP57149716A priority Critical patent/JPS5938955A/en
Publication of JPS5938955A publication Critical patent/JPS5938955A/en
Pending legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B15/00Driving, starting or stopping record carriers of filamentary or web form; Driving both such record carriers and heads; Guiding such record carriers or containers therefor; Control thereof; Control of operating function
    • G11B15/18Driving; Starting; Stopping; Arrangements for control or regulation thereof
    • G11B15/1883Driving; Starting; Stopping; Arrangements for control or regulation thereof for record carriers inside containers

Abstract

PURPOSE:To shift independently an erasing head and a record/reproduction head each other, by providing a magnetic head actuating motor independently of a tape driving motor. CONSTITUTION:A magnetic head actuating motor 1 is provided independently of a tape driving motor. A cam which is driven by the motor 1 is added together with a mobile plate 10 containing a record/reproduction head 12 and a pinch roller 16, and the mobile plate 11 containing an erasing head 13. Then tension springs 20 and 21 energize both plates 10 and 11 to bring them into contact with the cam respectively.

Description

【発明の詳細な説明】 産業上の利用分野 本発明はテープレコーダの磁気ヘッド作動装置にr!!
IL、特に小形のテープレコーダに好適な磁気ヘッド作
動装置に関する。
DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention is applied to a magnetic head actuating device of a tape recorder. !
The present invention relates to a magnetic head actuator suitable for IL, especially small tape recorders.

従来例の構成とその問題点 従来の大部分のテープレコーダにおいては、消去ヘッド
、録音再生ヘッド及びピンチローラをhl、置した支持
板をスライドボタンや押ボタンの操作と連動;7て移動
させる杼に4’Si成【2−Cいた。
Conventional Structure and Problems In most conventional tape recorders, the erasing head, recording/playback head, and pinch roller are placed on a shuttle that moves in conjunction with the operation of a slide button or push button. There was a 4'Si structure [2-C].

しかし、この4争な構成では、スライドボタンや押ボタ
ンlこかなりの力を加える必要があり、またモード切換
のために押ボタンを操作したときに大きな動作音が発生
し、挟作竹からは好ましくない。
However, with this complicated configuration, it is necessary to apply considerable force to the slide button or push button, and when the push button is operated to change the mode, a loud operating sound is generated, and the Undesirable.

この槌なスライドボタン、押ボタンを利用したものの欠
点を除くためにプランジャーあるいは専用モータを用い
て支持板を移動させる様にしたものも提案されているが
、それらにおいては消去ヘッド、録音再生ヘッドが同一
の支持板に配置されており、消去ヘッドと録音再生ヘッ
ドが全く同じ動きを行う様になっている。このため、消
去ヘッドは交流消去ヘッドが用いられており、消去を行
う場合は消去ヘッドに電流を流す様に構成されている。
In order to eliminate the disadvantages of using this hammer-like slide button or push button, it has been proposed to use a plunger or a special motor to move the support plate, but in these cases, the erase head, recording/playback head are placed on the same support plate, so that the erasing head and recording/playback head perform exactly the same movements. For this reason, an AC erasing head is used as the erasing head, and the erasing head is configured so that a current is passed through the erasing head when erasing is performed.

ところが、家rr用電源を用いるテープレコーダの場合
はこれで問題がないが、小型、携帯用のいわゆるポl′
ットテープレコーダでは電源が乾電池であるため、消去
ヘッドに電流を流して消去を行う七、それだけ録音可能
時間が減少してしまうという問題を有している。
However, while this is not a problem for tape recorders that use a home RR power supply, small and portable so-called portable recorders
Since a flat tape recorder uses a dry battery as its power source, it has the problem that erasing is performed by passing current through the erasing head, which reduces the available recording time.

発Iす1の目的 本発明は、かかる問題点に鵠;す、録音再生ヘッド及び
ピンチローラと消去ヘッドとを別々5こモータにて移動
させることができる磁夕(ヘッド作動装置の提供を目的
とする。
SUMMARY OF THE INVENTION The present invention addresses these problems and provides a head actuating device in which a recording/reproducing head, a pinch roller, and an erasing head can be moved by separate five motors. shall be.

発明の構成 本発明は、このためテープ駆動モータとは別に磁気ヘッ
ド作動用のモータを設4−J 、このモータにより駆動
されるカムを設け、録音rfI生ヘッドとピンチ[J−
ラを配置した第1可動板と消去ヘッドを配置した第2可
動板を設け、これら第1可動板と第2川動板を前記カム
に当接する様に付勢する手段を設け、モータでカムを回
転させて第1可動板と第2可動板の4)i置を別々に制
御する様にした磁気ヘッド作動装置を提供する。こうす
ると、消去ヘッドに永久磁石を使用することもnJ征に
なり、電池を゛電源とするテープレコーダの録音可能時
間を長くすることができる。
Structure of the Invention For this reason, the present invention provides a motor for operating the magnetic head separately from the tape drive motor, a cam driven by this motor, and connects the recording rfI raw head with the pinch [J-J-
A first movable plate on which an eraser is disposed and a second movable plate on which an erasing head is disposed are provided, and a means is provided for biasing the first movable plate and a second movable plate so as to contact the cam, and the cam is driven by a motor. To provide a magnetic head actuating device in which the 4) i positions of a first movable plate and a second movable plate are separately controlled by rotating the movable plate. In this way, the use of a permanent magnet in the erasing head becomes nJ-optimal, and the recordable time of a tape recorder using a battery as a power source can be extended.

実施例の説明 以下、本発明の一実ノif+j例を図i1i+に基づい
て説明する。第1図において、ヘッド作!Ijilハ1
の専用のモータ(11の軸(2)にウォー11ギヤ(3
)がJ1ゾ伺りられ、これに噛合うギヤ(4)が設(J
られている。
DESCRIPTION OF EMBODIMENTS Hereinafter, a practical example of the present invention will be described based on FIG. i1i+. In Figure 1, Head made! Ijil ha 1
A dedicated motor (11 shafts (2) and war 11 gears (3)
) was removed from J1, and a gear (4) that meshed with it was installed (J1).
It is being

このギヤ(4)の−側面には第4レロこ示A一様にS亀
性板(5)が固定され、かつ位置検出スイッチ((i)
の端子(7)がこの側Uniに接触している。このギヤ
(4)の他側面には、第5ν1、第7図及び第8図に示
す様に、カムリ)が形成されている。このカム(8)は
2種類の曲線部分(ε(a)(8b)を有している。Q
(Sは録音再生ヘッドθ2が配置された第1可動板、(
1])は永久磁石の消去ヘッド03を保持しているヘッ
ド支持台0.りが配置されたf;++ 2可動板であり
、これらは共に枢支ビン(9)Iこより基板oGに回転
可能に取付けられている。ピンチローラ(口I)が回転
可能に取イーJけられているピンチロー ラホルダ07
)も枢支ビン(18)により基板0υ上に取付けられ人
いる。09はキャプスタンである。自11記両町動板曲
)へ (11)の先端にはそれぞれ引張ばねgLv +2υが
取付けられ、常時両回動板Q(I! +1]Jに枢支ピ
ン(9)を中心として反時計方向の力を加えている。第
1可動板(](11には長大(10a)があけられ、こ
れを貫通する様に基板0均から立設されたピン@により
板片、方向の動きを規制しなから枢支ピン(9)まわり
の回転運動を案内している。(ハ)は第1川動板00の
カム(8)による時計方向の回動を検出するリーフスイ
ッチで、その端子先端部(23a)が、@1可動板00
に突設されたスイッチ用爪(10b)に対向している。
On the side of this gear (4), an S-shaped plate (5) is fixed to the fourth gear (4), and a position detection switch ((i)
The terminal (7) of is in contact with this side Uni. On the other side of this gear (4), a camry is formed as shown in No. 5v1, FIGS. 7 and 8. This cam (8) has two types of curved parts (ε(a) and (8b).Q
(S is the first movable plate on which the recording/playback head θ2 is arranged, (
1]) is a head support stand 0.1 that holds a permanent magnet erase head 03. 2 movable plates are arranged, both of which are rotatably attached to the substrate oG through the pivot pin (9) I. Pinch roller holder 07 in which the pinch roller (opening I) is rotatably mounted.
) is also mounted on the board 0υ by means of a pivot pin (18). 09 is a capstan. A tension spring gLv +2υ is attached to each end of the rotating plate Q(I!+1]J in the counterclockwise direction around the pivot pin (9). The first movable plate (11) has a long hole (10a), and the movement of the plate piece in the direction is regulated by a pin erected from the bottom of the board so as to penetrate this. It guides the rotational movement around the pivot pin (9). (c) is a leaf switch that detects the clockwise rotation by the cam (8) of the first river plate 00, and its terminal tip The part (23a) is @1 movable plate 00
It faces the switch claw (10b) protruding from the switch.

(10(:)はn11記ピンチローラホルタaηに係合
すべく第1可動板00に突設された爪、(10d)は前
記カム(8)の曲線部分(8a)に係合すべく形成され
た顎状部である。(Ila)は%ri記カム(8)の曲
線部分(8b)に係合すべく第2川動板(11)に形成
された顎状部である。
(10(:) is a claw protruding from the first movable plate 00 to engage with the pinch roller holter aη of n11, and (10d) is formed to engage with the curved portion (8a) of the cam (8). (Ila) is a jaw-like portion formed on the second river plate (11) to engage with the curved portion (8b) of the cam (8).

次に動作を説明すると、簾1図は録音状態を示しており
、消去ヘッド01、録音再生ヘッド((2)、キャプス
タンa9が横−曲線に並んでいる。
Next, to explain the operation, the screen 1 shows the recording state, in which the erasing head 01, the recording/reproducing head (2), and the capstan a9 are lined up in a horizontal curve.

ここで、ギヤ(4)が反時計方向に回転する様にモータ
(11を回転さゼる。すると、第2可動板01)の顎状
部(lla)が、カム(8)の曲線部分(81))に押
圧されて第2可動板αυが時計方向に回動せしめられ、
vh 2図に示した状態、すなわち消去ヘッド0免が後
退し録音再生ヘッド(2)のみがテープに接するテープ
レコーダ再生状態となる。ギヤ(4)がさらに回転する
と、第1可動板rlf)の顎状部(10d)かカム(8
)の曲線部分(8a)に押圧され、第1可動板(10も
時開方向に回動ぜしめられ、第3図に示す様に録音再生
ヘッド(12も後退する。また爪(10C)カピンチロ
ーラホルダ(力に係合してこれを回動せしめ、ピンチロ
ーラa0がキャプスタン09から離れる。このとき、リ
ーフスイッチに)の端子先端部(23a)がスイッチ用
爪(10b)に押されてこのスイッチがオフとなり、こ
の信号が第9図の動作制卸回路(ハ)に入力され、モー
タ駆動回路(イ)からモー・夕(1)への電流供給が止
めらね、モータ(11が静止する。
Here, the motor (11) is rotated so that the gear (4) rotates counterclockwise.Then, the jaw-shaped portion (lla) of the second movable plate 01 is moved from the curved portion ( 81)), the second movable plate αυ is rotated clockwise,
vh2 The tape recorder is in the state shown in FIG. 2, that is, the tape recorder is in a playback state in which the erasing head 0 is moved back and only the recording and playback head (2) is in contact with the tape. When the gear (4) further rotates, the jaw (10d) of the first movable plate rlf) or the cam (8
), the first movable plate (10) is also rotated in the time-opening direction, and the recording/playback head (12) is also moved back as shown in FIG. The terminal tip (23a) of the pinch roller holder (engages with force and rotates, and the pinch roller a0 separates from the capstan 09. At this time, the leaf switch) is pushed by the switch claw (10b). The lever switch is turned off, this signal is input to the operation control circuit (c) in Figure 9, the current supply from the motor drive circuit (a) to the motor control circuit (1) is not stopped, and the motor (11) is turned off. becomes still.

この状態から第2図のJ11生状態、第1図の録音状態
にするには、ギヤ(4゛を今度it時d(方向に回転す
る杵に電流を流す。第1可動板(11が第2図に示す位
置にくると、ギヤ(41−側面の導電性板(5)の第1
堺声部(5a)にイ)γ11A検出スイッチ(6)の端
子(7)が接してオンとなり、この信号か第9図の動作
制御回路(財)に入力し、モータIG、jJ、動回路(
ハ)を経てモータ(11が停止し、再生状態となる。
In order to change from this state to the J11 live state in Figure 2 and the recording state in Figure 1, a current is applied to the pestle rotating in the direction d (d) when the gear (4) is rotated.The first movable plate (11 is the When the position shown in Figure 2 is reached, the gear (41-first side conductive plate (5)
The terminal (7) of the γ11A detection switch (6) contacts the Sakai part (5a) and turns on, and this signal is input to the operation control circuit shown in Figure 9, and the motor IG, jJ, and motor circuit (
After c), the motor (11) stops and enters the regeneration state.

第3図の停止状態から卯、1図に示した録音状態に移行
する場合も同様で、位置検出スイッチ(6)のオン、オ
フの回数を!Ti1ノ作制御回路tq、4でカウントし
、2つ目のオンの状態でカム(J3)が停止すると録音
状態となり、このとき端子(7)は専電牲板(5)の第
2導電部(5b)に接している。第9図の(ホ)は操作
ボタンによるモード切換スイッチで、所望のモードを選
択すると動作制御回路QOに入力され、上記の如く動作
する。
The same goes for the transition from the stop state shown in Figure 3 to the recording state shown in Figure 1, and the number of times the position detection switch (6) is turned on and off. Ti1 operation control circuit tq, counts with 4, and when the cam (J3) stops in the second on state, it enters the recording state, and at this time the terminal (7) is connected to the second conductive part of the exclusive plate (5). (5b). (E) in FIG. 9 is a mode changeover switch operated by an operation button, and when a desired mode is selected, the input is input to the operation control circuit QO, and the operation is performed as described above.

カム(8)の回転角度とカムリフト量の1−I係は第6
図に示す様になっている。
The 1-I ratio between the rotation angle of the cam (8) and the cam lift amount is the 6th
It is as shown in the figure.

発明の効果 本発明のテープレコーダの磁気ヘッド作動製筒によると
、以上の説明から明らかな様に、1個の専用モータを使
うことにより消去ヘッドと録音再生ヘッドを別々に移動
させることが可能でオ入り、従って永久磁石を用いたマ
グネット消去ヘッドの使用が可能となる。マグネット消
去ヘッドを用いオ]ば、消去のために電流を消費しなく
て良いのでt11池を電源とする小形テープレコーダの
仕用可能時間を長くすることができる。
Effects of the Invention According to the magnetic head actuating cylinder for a tape recorder of the present invention, as is clear from the above explanation, it is possible to move the erasing head and the recording/playback head separately by using one dedicated motor. This makes it possible to use a magnetic erase head using a permanent magnet. If a magnetic erasing head is used, there is no need to consume current for erasing, so the operating time of a small tape recorder powered by a T11 battery can be extended.

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

図面は本発明の一実施例を示し、卯、1図は録音モード
時の全体平面図、第2図は111生モ一ド時の可動板の
位置関係を示す平面図、第3図はストップ、早送り、巻
戻しモード時の可動板の位置関係を示す平、面図、第4
図は位置検出スイッチと等電性板の接触状態の斜視図、
第5図はカムの外観を示す斜視図、第6図はカムの回転
角とカムリフト量の関係図、第7図はカム及びギヤの平
面図、第8図はカム及びギヤの側面図、第9図は制御部
のブロック図である。 (1)はモータ、(4゛はギヤ、(111は位置検出ス
イッチ、(8jはカム、(EI’1(8b)は曲線部分
、(1(jは第一1可動板、01)は第2可動オIy、
、o2は録音再l(ヘッド、(1:やは消去ヘッド、O
Iは遅;4f、7、(1(9はピンチd−ラ、K) 2
1)は引張はね(イζ1勢手段)、Qlはリー □フス
イッチ、241は動作側811回路、す(まモータF−
IK動回路。 特許出願人代理人 弁理士 山 本  孝 第1図 第2図 第3図 姐4図 第5図 第7図 第9 図 4 6
The drawings show one embodiment of the present invention. Figure 1 is an overall plan view in recording mode, Figure 2 is a plan view showing the positional relationship of movable plates in 111 raw mode, and Figure 3 is a stop view. , a flat and side view showing the positional relationship of the movable plate in fast forward and rewind modes, 4th
The figure is a perspective view of the contact state between the position detection switch and the isoelectric plate.
Figure 5 is a perspective view showing the external appearance of the cam, Figure 6 is a diagram showing the relationship between the rotation angle of the cam and the amount of cam lift, Figure 7 is a plan view of the cam and gear, Figure 8 is a side view of the cam and gear, and Figure 8 is a side view of the cam and gear. FIG. 9 is a block diagram of the control section. (1) is the motor, (4 is the gear, (111 is the position detection switch, (8j is the cam, (EI'1 (8b) is the curved part, (1 (j is the first movable plate, 01) is the 2 movable oi,
, o2 is the recording re-l(head, (1: is the erase head, O
I is slow; 4f, 7, (1 (9 is pinch d-ra, K) 2
1) is the tension spring (Iζ1 force means), Ql is the leaf switch, 241 is the operating side 811 circuit,
IK dynamic circuit. Patent applicant's representative Patent attorney Takashi Yamamoto Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 Figure 7 Figure 9 Figure 4 6

Claims (1)

【特許請求の範囲】[Claims] (1)  テープ駆動モータとは別に磁気ヘッド作動用
のモータを設け、このモータにより駆動されるカムを設
け、録音再生ヘッドとピンチローラを配置した第1可動
板と消去ヘッドを配置した第2可動板を設け、これら第
1可動板及び第2可動板を前記カムに当接する様に付勢
する手段を設けてなるテープレコーダの磁気ヘッド作動
装置。
(1) A motor for operating the magnetic head is provided separately from the tape drive motor, a cam driven by this motor is provided, a first movable plate has a recording/playback head and a pinch roller, and a second movable plate has an erase head. A magnetic head actuating device for a tape recorder, comprising: a plate; and means for biasing the first movable plate and the second movable plate so as to contact the cam.
JP57149716A 1982-08-27 1982-08-27 Magnetic head actuator of tape recorder Pending JPS5938955A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP57149716A JPS5938955A (en) 1982-08-27 1982-08-27 Magnetic head actuator of tape recorder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP57149716A JPS5938955A (en) 1982-08-27 1982-08-27 Magnetic head actuator of tape recorder

Publications (1)

Publication Number Publication Date
JPS5938955A true JPS5938955A (en) 1984-03-03

Family

ID=15481257

Family Applications (1)

Application Number Title Priority Date Filing Date
JP57149716A Pending JPS5938955A (en) 1982-08-27 1982-08-27 Magnetic head actuator of tape recorder

Country Status (1)

Country Link
JP (1) JPS5938955A (en)

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