JPS5848052U

JPS5848052U - Tape recorder drive mechanism

Info

Publication number: JPS5848052U
Application number: JP14093981U
Authority: JP
Inventors: 聡大岡
Original assignee: 株式会社東芝
Priority date: 1981-09-22
Filing date: 1981-09-22
Publication date: 1983-03-31

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

第１及び第２図はそれぞれこの考案の適用されたカセッ
トテープレコーダを示す正面側斜視図及び裏面側斜視図
、第３図は第２図からサブシャーシ及びフライホイール
を取り除いた状態を示す裏面側斜視図、第４図は同カセ
ットテープレコーダにおけるテープ走行の正逆切換機構
の基本構成を示す構成図、第５図及び第６図はそれぞれ
同正逆切換機構の動作説明図、第７図ａ、　　ｂは同正
逆切換機構に連動するヘッド回転機構を示す外観図及び
動作説明図、第８図はＰＬＡＹ（Ｒ）及び（Ｆ）操作し
゛　　　　バーと第１及び第２のロック板との関係を示
す構成図、第９図は第８図の動作説明図、第１０図はＰ
ＬＡＹ（Ｒ）操作レバーのロック機構を示す構成図、第
１１図ａ、　　ｂはそれぞれ同ロック機構の動作説明図
、第１２図ａ、　　ｂはそれぞれ従来のロック機構を示
す構成図及び説明図、第１３図は第４図で　−示した正
逆切換機構中の歯車の噛合状態を示す分解斜視図、第１
４図は同歯車の噛合位置を決める　　　・手疫を示す構
成図、第１５図ａ乃至Ｃはそれぞれ同歯車の位置決め手
段の変形例を示す斜視図、第１６図は同歯車の位置決め
手段の他の例を示す分解斜視図、第１７図はテープ走行
駆動機構を示す構成図、第１８図は同テープ走行駆動機
構の動作説明図、第１９図はＡＳＯ機構を示す構成図、
第２０図は同ＡＳＯ機構の要部を拡大して示す側断面図
、第２１図乃至第２４図はそ゛れぞれ同ＡＳＯ機構の動
作説明図、第２５図は従来のＡＳＯ機構を示す構成図、
第２６図は第１９図に示すＡＳＯ機構を原理的に示す説
明図、第２７図はオートリバース回数制限及びマニュア
ルリバース用の操作レバーを示す構成図、第２８図は同
操作レバーの動作説明図、第２９図はＲＦＣ操作レバー
のロック機構を示す構成図、第３０図及び第３１図はそ
れぞれ同ロック機構の動作説明図、第３２図は同ロック
機構の他の例を示す構成図、第３３図はこの考案に係る
テープレコーダの駆動機構の一実施例を示すもので、第
１７図に示すテ−プ走行駆動機構のうちテープ高速走行
駆動機構の高速レバーを示す分解斜視図、第３４図は同
高速レバーの組立てを説明する分解斜視図、第３５図は
同高速レバーを用いたテープ高速走行駆動機構を示す構
成図、第３６図は従来のテープ高速走行駆動機構を　　
　′示す構成図、′第３７図及び第３８図はそれぞれ第
３５図に示すテープ高速走行駆動機構の高速駆動　、レ
バーと軸との嵌合状態を示す分解斜視図及び側断面図、
第３９図ａ、　　ｂはそれぞれ同高速駆動しバーと高速
歯車との連結状態を示す分解斜視図及び側断面図、第４
０図ａ、　　ｂは従来の連結状態を示す分解斜視図及び
側断面図、第４１図は第３９図に示す連結状態の変形例
を示す斜視図、第４２図はフライホイールの軸受けをサ
ブシャーシに取付ける状態を示す分解斜視図、第４３図
は同フラーイホイールと軸受けの関係を示す側断面図、
第４４図ａ、　ｂはそれぞれ同軸受けの説明図、第４５
図は従来のフライホイールの軸受は構造を示す側断面図
、第４６図はＰＡＵＳＥ操作子のブツシュ−ブツシュ機
構を示す構成図、第４７図ａ、　　ｂはそれぞれ同ブツ
シュ−ブツシュ機構の要部を示す正面図及び側面図、第
４８図は同ブツシュ−ブツシュ機構の動作説明図、第４
９図ａ、　　ｂはそれぞれ同ブツシュ−ブツシュ機構の
要部の変形例を示す斜視図、第５０図はＡＳＯレババー
を板ばねで支持する状態を示す分解斜視図、第５１図は
板ばねの取付けを示す分解斜視図、第５２図はカセット
蓋ロックスライダを示す分解斜視図、第５３図ａ乃至Ｃ
はそれぞれ同カセット蓋ロックスライダの取付けを示す
側断面図である。１・・・メインシャーシ、２・・・操作部、３・・・ヘ
ッドスライダ、４・・・録再ヘッド、５．６・・・ピン
チローラ、１．８・・・キャプスタン、９・・・ヘッド
移動機構、１０・・・左リール台、１１・・・右リール
台、１２・・・テープカウンタ、１３・・・モータ、１
４．１５・・・操作レバー、１６・・・カセット蓋ロッ
クスライダ、１７・・・柱状体、１８・・・サブシャー
シ、１９．２０・・・フライホイール、２１１，２１２
・・・軸受け、２２・・・宇＝プ走行駆動機構、２３・
・・ＲＥＣロック機構、２４・・・ＡＳＯ機構、２′５
・・・左再生スライダ、２６・・・右再生スライダ、２
７・・・リバース駆動レバー、２８・・・歯車、２９・
・田ツクレバー、３ｏ・・・制御スライダ、３１・・・
駆動スライダ、３２・・・消去ヘッド、３３・・・ヘッ
ド支持体、３４・・・ヘッド取付構体、′３５・・・ヘ
ッド台板、３６・・・歯車、３７・・・扇状歯車、３８
・・・テープ、３９・・・接続線、４０・・・矢印、４
１・・・トーションスプリング、４２・・・ＰＬＡＹ（
Ｒ）操作レバー、４３・・・ＰＬＡＹ（Ｆ）操作レバー
、４４・・・第１のロック板、４５・・・第２のロック
板、４６・・・ロック部材、４７・・・第１の歯車、４
８・・・第２の歯車、４９１・・・凹部、４９２・・・
段部、４９３・・・溝、５０１・・・左巻取歯車、５０
２・・・右巻取歯車、５１・・・左巻取レバー、５２・
・・右巻取レバー、５３１゜５３２・・・ピンチレバー
、５４・・・高速駆動レバー、５５・・・高速操作レバ
ー、５６・・・ＲＥ並操作レバー、５７・・・ＦＦ操作
レバー、５８・・・高速スライダ、５９・・・ＡＳＯレ
バー、６０・・・検出レバー、６１・・・解除レバー、
６２・・・ＡＳＯセレクトレバー、６４・・・板ばね、
６５・・・ＲＥＣストップレバー、６６・・・ＲＦＣ制
御レバー、６７・・・スイッチレバー、６８・・・ＲＥ
Ｃ操作レバー、７５・・・ＰＡＵＳＥ操作レバー、−７
６・・・ＰＡＵＳＥ　ロック部材、７７・・・板ばね、
７８・・・可動部品、７９・・・嵌合部。Figures 1 and 2 are a front perspective view and a rear perspective view, respectively, showing a cassette tape recorder to which this invention is applied, and Figure 3 is a rear side view with the subchassis and flywheel removed from Figure 2. A perspective view, FIG. 4 is a configuration diagram showing the basic configuration of a forward/reverse switching mechanism for tape running in the cassette tape recorder, FIGS. 5 and 6 are illustrations of the operation of the forward/reverse switching mechanism, respectively, and FIG. 7a , b is an external view and operation explanatory diagram showing the head rotation mechanism interlocked with the forward/reverse switching mechanism, and Figure 8 is the relationship between the PLAY (R) and (F) operating bar and the first and second lock plates. 9 is an explanatory diagram of the operation of FIG. 8, and FIG. 10 is a diagram showing the P
A configuration diagram showing the locking mechanism of the LAY(R) operating lever, FIGS. 11a and 11b are respectively explanatory diagrams of the operation of the same locking mechanism, and FIGS. 12a and b are respectively a configuration diagram and an explanatory diagram showing the conventional locking mechanism, Figure 13 is an exploded perspective view showing the meshing state of the gears in the forward/reverse switching mechanism shown in Figure 4;
Figure 4 is a configuration diagram showing the mechanism for determining the meshing position of the same gear, Figures 15a to 15C are perspective views showing modified examples of the positioning means of the same gear, and Figure 16 is a diagram showing the positioning means of the same gear. 17 is a configuration diagram showing a tape running drive mechanism, FIG. 18 is an explanatory diagram of the operation of the tape running drive mechanism, FIG. 19 is a configuration diagram showing an ASO mechanism,
Fig. 20 is a side sectional view showing an enlarged main part of the ASO mechanism, Figs. 21 to 24 are explanatory diagrams of the operation of the ASO mechanism, and Fig. 25 is a configuration showing a conventional ASO mechanism. figure,
Fig. 26 is an explanatory diagram showing the principle of the ASO mechanism shown in Fig. 19, Fig. 27 is a configuration diagram showing the operating lever for limiting the number of auto reverses and manual reverse, and Fig. 28 is an explanatory diagram of the operation of the operating lever. , FIG. 29 is a configuration diagram showing the locking mechanism of the RFC operating lever, FIGS. 30 and 31 are respectively explanatory diagrams of the operation of the same locking mechanism, and FIG. 33 shows an embodiment of the drive mechanism of a tape recorder according to this invention, and FIG. The figure is an exploded perspective view explaining the assembly of the same high-speed lever, Figure 35 is a configuration diagram showing a high-speed tape running drive mechanism using the same high-speed lever, and Figure 36 is a diagram showing a conventional high-speed tape running drive mechanism.
'The configuration diagram shown in FIG.
Figures 39a and 39b are an exploded perspective view and a side sectional view showing the connected state of the high-speed gear and the high-speed drive bar, respectively;
Figures 0a and 0b are exploded perspective views and side sectional views showing a conventional connection state, Figure 41 is a perspective view showing a modification of the connection state shown in Figure 39, and Figure 42 is a flywheel bearing attached to a sub-chassis. Fig. 43 is an exploded perspective view showing the state in which it is attached to the flywheel, and Fig. 43 is a side sectional view showing the relationship between the flywheel and the bearing.
Figures 44a and 45b are explanatory diagrams of coaxial bearings, respectively.
The figure is a side sectional view showing the structure of a conventional flywheel bearing, Figure 46 is a configuration diagram showing the button-button mechanism of the PAUSE operator, and Figures 47a and b show the main parts of the button-button mechanism, respectively. Fig. 48 is an explanatory diagram of the operation of the bushing mechanism;
Figures 9a and 9b are perspective views showing modified examples of the main parts of the button shoe-button mechanism, Figure 50 is an exploded perspective view showing a state in which the ASO lever bar is supported by a leaf spring, and Figure 51 is an installation of the leaf spring. FIG. 52 is an exploded perspective view showing the cassette lid lock slider, FIG. 53 a to C
FIG. 3 is a side sectional view showing how the cassette lid lock slider is attached. DESCRIPTION OF SYMBOLS 1...Main chassis, 2...Operation unit, 3...Head slider, 4...Recording/reproducing head, 5.6...Pinch roller, 1.8...Capstan, 9...・Head moving mechanism, 10...Left reel stand, 11...Right reel stand, 12...Tape counter, 13...Motor, 1
4.15... Operation lever, 16... Cassette lid lock slider, 17... Column body, 18... Sub chassis, 19.20... Flywheel, 211, 212
...Bearing, 22...U=P traveling drive mechanism, 23.
...REC lock mechanism, 24...ASO mechanism, 2'5
...Left playback slider, 26...Right playback slider, 2
7... Reverse drive lever, 28... Gear, 29.
・Tatsukuru lever, 3o...control slider, 31...
Drive slider, 32... Erasing head, 33... Head support, 34... Head mounting structure, '35... Head base plate, 36... Gear, 37... Sectoral gear, 38
...Tape, 39...Connection line, 40...Arrow, 4
1...Torsion spring, 42...PLAY(
R) operation lever, 43... PLAY (F) operation lever, 44... first lock plate, 45... second lock plate, 46... lock member, 47... first gear, 4
8... Second gear, 491... Recessed portion, 492...
Stepped portion, 493...Groove, 501...Left winding gear, 50
2... Right winding gear, 51... Left winding lever, 52.
... Right winding lever, 531°532 ... Pinch lever, 54 ... High speed drive lever, 55 ... High speed operation lever, 56 ... RE normal operation lever, 57 ... FF operation lever, 58 ...High speed slider, 59...ASO lever, 60...Detection lever, 61...Release lever,
62...ASO select lever, 64...plate spring,
65...REC stop lever, 66...RFC control lever, 67...Switch lever, 68...RE
C operation lever, 75...PAUSE operation lever, -7
6...PAUSE lock member, 77...plate spring,
78... Movable part, 79... Fitting part.

Claims

[Scope of utility model registration request]

Operating levers for forward and reverse tape running are arranged in parallel and supported slidably in the same direction, and operating levers for running the tape in the forward and reverse directions are provided at both ends of the operating levers for running the tape in the forward and reverse directions. The lever has a tapered part that engages with a retaining part formed on the lever, and when the tape forward and reverse direction operating lever is selectively slid, the lever is moved in the sliding direction. Schematic diagram: A high-speed drive lever that slides in the cross direction, and a rotational force transmission mechanism that can transmit rotational force to one of a pair of reel stands in conjunction with the sliding movement of this high-speed drive lever. A drive mechanism for a tape recorder, characterized in that the inclination angle of the tapered portion of the high-speed drive lever is changed stepwise so that the operating force of the operating lever for forward and reverse tape running is reduced. .