JPH0430669Y2 - - Google Patents
Info
- Publication number
- JPH0430669Y2 JPH0430669Y2 JP1909285U JP1909285U JPH0430669Y2 JP H0430669 Y2 JPH0430669 Y2 JP H0430669Y2 JP 1909285 U JP1909285 U JP 1909285U JP 1909285 U JP1909285 U JP 1909285U JP H0430669 Y2 JPH0430669 Y2 JP H0430669Y2
- Authority
- JP
- Japan
- Prior art keywords
- erasure prevention
- recording
- accidental erasure
- detection
- head switching
- 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
- 230000002265 prevention Effects 0.000 claims description 50
- 210000000078 claw Anatomy 0.000 claims description 42
- 238000001514 detection method Methods 0.000 claims description 28
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
Description
【考案の詳細な説明】
〔産業上の利用分野〕
本考案は、リバース式回転磁気ヘツドを切り換
えるリバース式テープレコーダの誤消去防止爪機
構に関する。[Detailed Description of the Invention] [Industrial Field of Application] The present invention relates to an accidental erasure prevention pawl mechanism for a reverse type tape recorder that switches a reverse type rotating magnetic head.
本考案はテープカセツトのＡ面とＢ面の誤消去
防止片の有無を検出する誤消去防止爪の働きを回
転磁気ヘツドを反転するヘツド切換板の反転揺動
に関連させて自動的に切換え検出するようにした
リバース式テープレコーダの誤消去防止爪機構を
提案することである。
The present invention automatically switches and detects the function of the erase prevention claw, which detects the presence or absence of the erase prevention pieces on sides A and B of a tape cassette, in conjunction with the reversal swing of the head switching plate that reverses the rotating magnetic head. An object of the present invention is to propose a claw mechanism for preventing accidental erasure for a reverse type tape recorder.
本考案は、回転式磁気ヘツドをヘツド切換板２
で反転するレバース式テープレコーダにおいて、
Ａ面とＢ面の誤消去防止爪３，４と、ヘツド切換
板２の揺動に連動して摺動し一側端に一方の誤消
去防止爪３の突部３ｂと当接して誤消去防止爪３
を逃がす逃がし部１ｃと録音レバー７の検知部７
ａ，７ｂと当接可能に臨み誤消去防止爪４の動き
に連動して上下動する第１当接部１ｄとを有する
連結杆１と、前記検知部７ｂに臨む前記一方の誤
消去防止爪３に設けられた第２当接部３ｃとを備
え、前記ヘツド切換板２の揺動で前記連結杆１を
摺動して前記第１当接部１ｄを前記検知部７ａ，
７ｂのスライド域に挿入離脱すると共に前記逃が
し部１ｃと誤消去防止爪３の突部３ｂとを当接さ
せて他方の誤消去防止爪４が作用するとき一方の
誤消去防止爪３を不作用状態とするよう構成した
ことにある。
The present invention connects the rotary magnetic head to the head switching plate 2.
In a lever type tape recorder that reverses at
The accidental erasure prevention claws 3 and 4 on sides A and B slide in conjunction with the swinging of the head switching plate 2, and contact the protrusion 3b of one of the accidental erasure prevention claws 3 at one end to prevent accidental erasure. Prevention claw 3
The relief part 1c that releases the sound and the detection part 7 of the recording lever 7
a, 7b, and a first contact portion 1d that moves up and down in conjunction with the movement of the accidental erasure prevention claw 4; and one of the accidental erasure prevention claws that faces the detection portion 7b. 3, and by the swinging of the head switching plate 2, the connecting rod 1 is slid and the first abutting portion 1d is connected to the detecting portion 7a,
7b is inserted into and removed from the sliding area, and when the relief portion 1c and the protrusion 3b of the accidental erasure prevention claw 3 are brought into contact with each other, and the other accidental erasure prevention claw 4 is activated, one of the accidental erasure prevention claws 3 is inactivated. The problem lies in the fact that it is configured to be a state.
以下、図示の一実施例で本考案を説明する。リ
バース式テープレコーダの誤消去防止爪機構は第
１図、第２図でシヤーシ１０，１１が支柱１２で
間隔を置いて並行に保持されると共にシヤーシ１
１の下側に他のシヤーシ１３が間隔を置いて並行
に保持されている。シヤーシ１０の前方の縁には
２組のＵ字状軸部と鈎部を有するＵ字状軸部１
４，１４が設けられて連結杆１の両側が前後方向
に回動自在にかつ左右に摺動自在に嵌められ、中
間に横向きの長い凹部１ａが形成されて第１０図
に示した如くヘツド切換板２の突出部２ａが挿入
されている。
Hereinafter, the present invention will be explained with reference to an illustrated embodiment. The accidental erasure prevention claw mechanism of the reverse type tape recorder is shown in FIGS.
Another chassis 13 is held below the chassis 1 in parallel at intervals. The front edge of the chassis 10 has a U-shaped shaft portion 1 having two sets of U-shaped shaft portions and a hook portion.
4 and 14 are provided, and both sides of the connecting rod 1 are fitted so as to be rotatable in the front-rear direction and slidable in the left-right direction, and a long horizontal recess 1a is formed in the middle for head switching as shown in FIG. The protrusion 2a of the plate 2 is inserted.
連結杆１の一側端には小さな凹部１ｂとＡ面用
の一方の誤消去防止爪３を後方に回動する凸状逃
がし部１ｃと第１当接部１ｄが形成されている。
連結杆１の他側端には逆向きコ字部１ｅが形成さ
れてＢ面用の他方の誤消去防止爪４が嵌め込まれ
ている。 A small concave portion 1b, a convex release portion 1c for rotating one of the accidental erasure prevention claws 3 for the A side rearward, and a first contact portion 1d are formed at one end of the connecting rod 1.
An inverted U-shaped portion 1e is formed at the other end of the connecting rod 1, into which the other erroneous erasure prevention claw 4 for side B is fitted.
誤消去防止爪３，４はＬ字状に形成されて上側
の辺に爪３ａ，３ａが形成され、一方の誤消去防
止爪３には連結杆１の小さな凹部１ｂと逃がし部
１ｃと選択係合される突部３ｂと第２当接部３ｃ
が形成されている。 The accidental erasure prevention claws 3 and 4 are formed in an L-shape, with claws 3a and 3a formed on the upper side, and one of the accidental erasure prevention claws 3 has a small recess 1b of the connecting rod 1, a relief part 1c, and a selection engagement. The protruding portion 3b and the second contact portion 3c are mated together.
is formed.
シヤーシ１０，１１の前側には第２図の左右に
摺動自在に係止板１５が設けられてバネ１６で右
側方向に付勢されている。係止板１５の内側には
シヤーシの面に対し垂直方向に上下動自在に録音
操作レバー５と停止操作レバー６が設けられてい
る。各操作レバーには係止板１５の複数の折曲部
１５ａと係合する傾斜面５ａ，６ａと抜け止め腕
部５ｂ，６ｂが形成され、録音操作レバー５には
前記折曲部１５ａが係合される段部５ｃが形成さ
れている。シヤーシ１１と係止板１５の間には図
示しないメインスイツチを開閉するスライド板１
７がシヤーシ１１に摺動自在に設けられて再生・
録音及び巻戻し・早送りの各操作レバーで摺動さ
れ、各操作レバーしバネ板１８で上方に押し上げ
付勢されている。 A locking plate 15 is provided on the front side of the chassis 10, 11 so as to be slidable to the left and right in FIG. 2, and is urged rightward by a spring 16. A recording operation lever 5 and a stop operation lever 6 are provided inside the locking plate 15 so as to be movable up and down in a direction perpendicular to the surface of the chassis. Each operating lever is formed with inclined surfaces 5a, 6a that engage with the plurality of bent portions 15a of the locking plate 15, and retaining arms 5b, 6b. A step portion 5c to be fitted is formed. A slide plate 1 for opening and closing a main switch (not shown) is located between the chassis 11 and the locking plate 15.
7 is slidably provided on the chassis 11 for playback and
Each operating lever for recording, rewinding, and fast forwarding is slid, and each operating lever is pushed upward by a spring plate 18.
第１図でシヤーシ１０の上面には録音レバー７
と録音スイツチレバー８が前後に摺動自在に設け
られ、録音レバー７はバネ１９で、録音スイツチ
レバー８はバネ２０で夫々手前側に付勢され、録
音スイツチレバー８の前端には図示しない録音ス
イツチが臨まされている。録音操作レバー５の突
部５ｄには録音レバー７の手前側の一端が押圧自
在に臨まされ、録音レバー７の前端は二叉に別れ
て検知部７ａ，７ｂが形成されて検知部７ａは前
記第１当接部１ｄに、検知部７ｂは第２当接部３
ｃに臨まされている。録音レバー７の手前側の下
向き折曲部７ｃで図示しないアシストカム機構を
作動するアシストトリガーに臨まされている。録
音スイツチレバーの手前側には第１図，第４図の
録音スイツチ爪２１が回動自在に支承されてバネ
２２で時計方向に付勢され、録音レバー７に設け
られた突起７ｄが録音スイツチ爪２１の折曲部２
１ａを押し上げて回動するように臨まされてい
る。録音スイツチレバー８の前方には逆向きＬ字
形の腕部８ａが延ばされ、腕部先端には逆向きコ
字形の凹部８ｂが形成されている。 In Figure 1, there is a recording lever 7 on the top of the chassis 10.
and a recording switch lever 8 are provided so as to be slidable back and forth, the recording lever 7 is biased toward the front by a spring 19, and the recording switch lever 8 is biased toward the near side by a spring 20, respectively. A switch is coming. One end of the recording lever 7 on the near side faces the projection 5d of the recording operation lever 5 so as to be freely pressed, and the front end of the recording lever 7 is divided into two parts to form detection parts 7a and 7b. The detection section 7b is connected to the first contact section 1d and the second contact section 3
c. A downwardly bent portion 7c on the front side of the recording lever 7 faces an assist trigger that operates an assist cam mechanism (not shown). On the front side of the recording switch lever, a recording switch pawl 21 shown in FIGS. 1 and 4 is rotatably supported and biased clockwise by a spring 22, and a protrusion 7d provided on the recording lever 7 is used to operate the recording switch. Bent part 2 of claw 21
1a is pushed up and rotated. An inverted L-shaped arm 8a extends in front of the recording switch lever 8, and an inverted U-shaped recess 8b is formed at the tip of the arm.
腕部８ａの位置のシヤーシ１０には軸２３で録
音検知板９が回動自在に支承されて軸２３の外周
に巻回された検知バネ２４の一端がバネ掛け部９
ａに掛けられ、検知バネ２４の他端は他のバネ掛
け部９ｂに掛けられると共に前記録音スイツチレ
バー８の凹部８ｂに挿入されている。録音検知板
９には更に前記第１当接部１ｄに臨む検知部９ｃ
と脚部９ｄが設けられている。脚部９ｄは切換ス
ライド板２５のピン２６に臨まされ、切換スライ
ド板２５はシヤーシ１０上に横向きに摺動自在に
設けられ、切換スライド板２５の他端はヘツド切
換板２の逆Ｌ字形折曲部２ｂに挟み込まれると共
に長孔が穿設されて長孔にヘツド切換板２のピン
２ｃが挿入されている。シヤーシ１０の裏側に突
出された前記ピン２６には図示しない解除機構の
動作条件を選択する機構が取り付けられている。 A recording detection plate 9 is rotatably supported by a shaft 23 on the chassis 10 at the position of the arm 8a, and one end of a detection spring 24 wound around the outer periphery of the shaft 23 is connected to the spring hook 9.
The other end of the detection spring 24 is hung on another spring hook 9b and inserted into the recess 8b of the recording switch lever 8. The recording detection plate 9 further includes a detection portion 9c facing the first contact portion 1d.
and leg portions 9d are provided. The leg portion 9d faces the pin 26 of the switching slide plate 25, and the switching slide plate 25 is provided to be able to slide horizontally on the chassis 10, and the other end of the switching slide plate 25 faces the inverted L-shaped fold of the head switching plate 2. It is sandwiched between the curved portions 2b and has a long hole drilled therein, into which the pin 2c of the head switching plate 2 is inserted. A mechanism (not shown) for selecting operating conditions of a release mechanism is attached to the pin 26 protruding from the back side of the chassis 10.
即ち、第７図に示した状態でＡ面とＢ面の切換
機構に連動して揺動するヘツド切換板２のピン２
ｃで第８図に示したように切換スライド板２５が
右側に移動されるとオートストツプの解除機構へ
連動する。 That is, in the state shown in FIG. 7, the pin 2 of the head switching plate 2 swings in conjunction with the A-side and B-side switching mechanism.
At c, when the switching slide plate 25 is moved to the right as shown in FIG. 8, it is linked to the auto-stop release mechanism.
シヤーシ１３の下側には第２図のようにモータ
ー２７が固定されてモーター２７の回転はシヤー
シ１０と１３で軸承された第１図の２本のキヤプ
スタン軸２８，２９のフライホイール３０，３１
にベルト３２を介して伝達される。キヤプスタン
軸２８，２９の前側にはシヤーシ１１に固定され
た軸３３，３４に夫々供給リール台３５と巻取リ
ール台３６が嵌合配置されている。シヤーシ１０
の上面には前記ヘツド切換板２とヘツド基板３７
が設けられ、ヘツド切換板２はシヤーシ１０に植
設された軸部３８に揺動自在に嵌合され、ヘツド
切換カムギヤ３９の長い第１ピン４０が長孔２ｄ
に挿入されて反転揺動され、ヘツド基板３７は複
数の長孔と軸部３８とシヤーシに植設された複数
の支持部で前後に摺動自在に保持されて軸部３８
に螺合されたビス４１とバネ板で抜き止めされて
いる。 A motor 27 is fixed to the lower side of the chassis 13 as shown in FIG.
is transmitted via the belt 32. On the front side of the capstan shafts 28 and 29, a supply reel stand 35 and a take-up reel stand 36 are fitted to shafts 33 and 34 fixed to the chassis 11, respectively. Chassis 10
The head switching plate 2 and the head board 37 are provided on the upper surface of the
The head switching plate 2 is swingably fitted to a shaft portion 38 implanted in the chassis 10, and the long first pin 40 of the head switching cam gear 39 is inserted into the elongated hole 2d.
The head board 37 is held slidably back and forth by a plurality of elongated holes, a shaft portion 38, and a plurality of support portions implanted in the chassis.
It is prevented from coming off by a screw 41 screwed into the and a spring plate.
前記誤消去防止爪機構の連結杆１と誤消去防止
爪３，４の動作を説明すると、第１図、第７図及
び第８図でヘツド基板３７に反転自在に取り付け
られたリバース式回転磁気ヘツド４２はヘツド切
換板２が第１図で実線位置の時（第８図の状態
で）図示しないテープカセツトのＢ面に対応し、
第１図で２点鎖線の時（第７図の状態で）Ａ面に
対応するようになつている。 To explain the operation of the connecting rod 1 and the accidental erasure prevention claws 3 and 4 of the accidental erasure prevention claw mechanism, as shown in FIGS. The head 42 corresponds to the B side of a tape cassette (not shown) when the head switching plate 2 is in the solid line position in FIG. 1 (in the state shown in FIG. 8).
In FIG. 1, the two-dot chain line corresponds to surface A (in the state shown in FIG. 7).
次にヘツド切換板２が第１図の実線及び第８図
の如くＢ面側にある時連結杆１は右側に移動され
ており、逃がし部１ｃが左側のＡ面用誤消去防止
爪３の突部３ｂに当たつて誤消去防止爪３は後方
に回動されて第９図に示したように不作用状態と
なり、第１当接部１ｄは検知部７ａに対応する位
置に移動されている。又ヘツド切換板２が第１図
の２点鎖線及び第７図の如くＡ面側に反転されて
いる時は逃がし部１ｃの右隣の小さな凹部１ｂと
Ａ面用誤消去防止爪３の突部３ｂが当接されてテ
ープカセツトのＡ面の誤消去防止片の有無が検知
される作用状態となつており、かつ第１当接部１
ｄは検知部７ａ，７ｂの中間に位置されている。 Next, when the head switching plate 2 is on the B side as shown by the solid line in FIG. 1 and as shown in FIG. Upon contact with the protrusion 3b, the accidental erasure prevention claw 3 is rotated backward and becomes inactive as shown in FIG. 9, and the first contact portion 1d is moved to a position corresponding to the detection portion 7a. There is. Also, when the head switching plate 2 is turned over to side A as shown by the two-dot chain line in FIG. 1 and as shown in FIG. The first abutting portion 1 is in an operating state in which the presence or absence of the erroneous erasure prevention piece on side A of the tape cassette is detected when the first abutting portion 3b is brought into contact with the tape cassette.
d is located between the detection parts 7a and 7b.
また、誤消去防止爪４と連結杆１との関係は、
第１図、第７図及び第８図から解るように連結杆
１の右端の逆向きコ字部１ｅに誤消去防止爪４の
左端部が挿入連結されているので、Ｂ面側のカセ
ツトの誤消去防止片がある場合、第６図に示した
如く誤消去防止爪４の爪４ａが押されて後方に回
動されると、連結している連結杆１も後方に回動
され第１当接部１ｄが上昇されて録音レバー７が
押し込み可能となる。 Furthermore, the relationship between the accidental erasure prevention claw 4 and the connecting rod 1 is as follows.
As can be seen from FIGS. 1, 7, and 8, the left end of the accidental erasure prevention claw 4 is inserted and connected to the inverted U-shaped portion 1e at the right end of the connecting rod 1, so that the cassette on side B side is When there is an accidental erasure prevention piece, when the claw 4a of the accidental erasure prevention claw 4 is pushed and rotated backwards as shown in FIG. 6, the connected connecting rod 1 is also rotated backwards and the first The contact portion 1d is raised and the recording lever 7 can be pushed in.
以下、１〜４で各誤消去防止爪の動作状態につ
いて説明をする。 Below, the operating states of each of the accidental erasure prevention claws will be explained in 1 to 4.
１ 第６図に示した如く、テープカセツトのＡ
面、Ｂ面共に誤消去防止片がある時はカセツト
の装填で誤消去防止爪３，４は共に後方に回動
される。1 As shown in Figure 6, A of the tape cassette
When there is an erroneous erasure prevention piece on both the side and the B side, both the erroneous erasure prevention claws 3 and 4 are rotated rearward when the cassette is loaded.
この回動状態で録音操作レバー５が押し下げ
られると録音レバー７の検知部７ａ，７ｂのス
ライド域に第１当接部１ｄと第２当接部３ｃが
ないので録音レバー７は前進され、スライド板
１７の移動でメインスイツチが閉成されてモー
ター２７が回転され、図示しないアシストカム
機構でヘツド基板３７が前進され、録音スイツ
チ爪２１の脚部２１ｂが図示しないアシストカ
ム機構のチエンジアームの突起４３で押し上げ
られ、録音スイツチレバー８が前進されてテー
プのＡ面に録音される。この時録音スイツチレ
バー８の前進で録音検知板９は検知バネ２４で
反時計方向に回動されようとするが第１当接部
１ｄが上昇されているので反時計方向に回動さ
れない。 When the recording operation lever 5 is pushed down in this rotating state, the recording lever 7 is moved forward and slid because the first contact portion 1d and the second contact portion 3c are not in the sliding area of the detection portions 7a and 7b of the recording lever 7. The main switch is closed by the movement of the plate 17, the motor 27 is rotated, the head board 37 is advanced by the assist cam mechanism (not shown), and the leg 21b of the recording switch pawl 21 is connected to the protrusion of the change arm of the assist cam mechanism (not shown). 43, the recording switch lever 8 is moved forward and recording is performed on side A of the tape. At this time, as the recording switch lever 8 moves forward, the recording detection plate 9 attempts to be rotated counterclockwise by the detection spring 24, but since the first contact portion 1d is raised, the recording detection plate 9 is not rotated counterclockwise.
Ａ面のテープ終端では図示しないテープ終端
検知機構とヘツド切換カムギヤ３９のヘツド切
換機構と解除機構の動作条件を選択する機構と
解除機構で停止又はヘツド切換板２が反転揺動
されて連結杆１が右側に摺動され、Ｂ面に磁気
ヘツド４２が対応される。連結杆１が摺動され
ると第１当接部１ｄは先端が上昇されたまま検
知部７ａの上に移動される。この時録音検知板
９の動作で図示しない解除機構は作動されずに
図示しないヘツド切換カムギヤ３９の切換機構
でヘツド切換板２はＢ面に反転揺動される。Ｂ
面のテープ終端では図示しないテープ終端検知
機構と解除機構で動作が停止される。 At the end of the tape on side A, a tape end detection mechanism (not shown) and a mechanism for selecting the operating conditions of the head switching mechanism and release mechanism of the head switching cam gear 39 and a release mechanism stop or reversely swing the head switching plate 2 and connect the connecting rod 1. is slid to the right, and the magnetic head 42 corresponds to the B side. When the connecting rod 1 is slid, the first contact portion 1d is moved above the detection portion 7a with its tip raised. At this time, the release mechanism (not shown) is not activated by the operation of the recording detection plate 9, and the head switching plate 2 is reversely swung to the B side by the switching mechanism of the head switching cam gear 39 (not shown). B
At the end of the tape on the surface, the operation is stopped by a tape end detection mechanism and a release mechanism (not shown).
２ 次に第５図に示した如く、テープカセツトの
誤消去防止片がＡ面、Ｂ面共にない時は、Ａ面
への録音操作で録音操作レバー５は押し下げら
れない。即ち、検知部７ｂのスライド域に第２
当接部３ｃがあつて録音レバー７が前進出来
ず、録音状態にすることが出来ない。又図示し
ないヘツド切換カムギヤ３９の切換機構でヘツ
ド切換板２を反転揺動してもＢ面への録音操作
も検知部７ａのスライド域に第１当接部１ｄが
あつて録音状態にすることが出来ない。2. Next, as shown in FIG. 5, when the tape cassette has no accidental erasure prevention piece on both side A and B, the recording operation lever 5 cannot be pressed down when recording on side A. That is, the second
The recording lever 7 cannot move forward due to the abutting portion 3c, and the recording state cannot be set. Furthermore, even if the head switching plate 2 is reversely swung by the switching mechanism of the head switching cam gear 39 (not shown), the first contact portion 1d will be in the recording state in the sliding area of the detection portion 7a even if the recording operation to the B side is performed. I can't.
３ テープカセツトの誤消去防止片がＡ面にあ
り、Ｂ面にない時は、Ａ面用誤消去防止爪３は
後方に回動されるのでＡ面への録音操作で録音
操作レバー５が押し下げられると前記１の前者
の場合と同様に検知部７ｂのスライド域に第２
当接部３ｃがないので録音状態にすることが出
来る。しかしＢ面には誤消去防止片がないので
Ｂ面用の誤消去防止爪４は後方に回動されず、
従つて第１当接部１ｄ先端が上昇されないので
前記録音スイツチレバー８の前進で録音検知板
９が反時計方向に回動され、この状態でＡ面の
テープ終端になると録音検知板９と切換スライ
ド板２５と図示しない解除機構の作動条件設定
機構でテープ終端検知機構と解除機構で停止さ
れてＡ面で解除してしまい、Ｂ面の録音状態に
はならない。3 When the tape cassette's accidental erasure prevention piece is on side A and not on side B, the accidental erasure prevention claw 3 for side A is rotated backwards, so recording operation lever 5 is pushed down when recording on side A. When the slide area of the detection part 7b is
Since there is no abutting part 3c, it is possible to put it into a recording state. However, since there is no erroneous erasure prevention piece on the B side, the erroneous erasure prevention claw 4 for the B side is not rotated backwards.
Therefore, since the tip of the first contact portion 1d is not raised, the recording detection plate 9 is rotated counterclockwise as the recording switch lever 8 moves forward, and in this state, when the end of the tape on side A is reached, the recording detection plate 9 is switched. The operation condition setting mechanism of the slide plate 25 and the release mechanism (not shown), the tape end detection mechanism, and the release mechanism stop the tape and release the tape on the A side, so that the B side is not recorded.
４ 誤消去防止片がＡ面になく、Ｂ面にある時
は、Ａ面への録音状態では録音操作レバー５が
押し下げられないので、ヘツド切換カムギヤ３
９の図示しないヘツド切換機構でヘツド切換板
２を反転揺動してＢ面への録音状態とするか、
テープカセツトを裏返して前記３の状態にして
もＢ面に録音がなされる。4 When the accidental erasure prevention piece is not on side A but on side B, the recording operation lever 5 cannot be pressed down when recording on side A, so the head switching cam gear 3
Either the head switching plate 2 is reversely swung using the head switching mechanism (not shown) at 9 to record on the B side, or
Even if the tape cassette is turned over and placed in state 3 above, recording will still be made on the B side.
前記説明では録音操作レバー５，録音レバー
７、録音スイツチレバー８及び連結杆１の小さ
な凹部１ｂ、逃がし部１ｃ、第１当接部１ｄ等
を左側に設けたが、右側に設けてもよい。 In the above description, the recording operation lever 5, the recording lever 7, the recording switch lever 8, the small recess 1b of the connecting rod 1, the relief part 1c, the first contact part 1d, etc. are provided on the left side, but they may be provided on the right side.
本考案は前述のように構成されたから、簡単な
構成でヘツド切換板を反転揺動する動作に連動し
て誤消去防止爪機構がＡ面とＢ面に自動的に切換
え作動してテープカセツトの誤消去防止片の有無
を確実に検知し、その状況に対応してテープレコ
ーダが作動される実用上優れた効果を奏するリバ
ース式テープレコーダの誤消去防止爪機構を提供
することが出来る。
Since the present invention is constructed as described above, it has a simple construction, and the accidental erasure prevention claw mechanism automatically switches between the A side and the B side in conjunction with the operation of reversing and rocking the head switching plate, and the tape cassette is It is possible to provide an erroneous erasure prevention pawl mechanism for a reverse type tape recorder which has excellent practical effects in which the presence or absence of an erroneous erasure prevention piece is reliably detected and the tape recorder is operated in response to the situation.
図面は本考案の一実施例が示され、第１図はテ
ープレコーダの平面図、第２図は正面図、第３図
は第１図の−線断面正面図、第４図は録音ス
イツチ爪の平面図、第５図はカセツトの誤消去防
止片がない場合の誤消去防止爪状態説明図、第６
図はカセツトの誤消去防止片がある場合の誤消去
防止爪状態説明図、第７図はカセツトＡ面側動作
状態要部説明図、第８図はカセツトＢ面側動作状
態要部説明図、第９図は第８図の−線断面説
明図、第１０図は第８図の−線断面説明図で
ある。
１……連結杆、１ｃ……逃がし部、１ｄ……第
１当接部、２……ヘツド切換板、３，４……誤消
去防止爪、３ｂ……突部、３ｃ……第２当接部、
７……録音レバー、７ａ，７ｂ……検知部、４２
……回転磁気ヘツド。
The drawings show an embodiment of the present invention, in which Fig. 1 is a plan view of a tape recorder, Fig. 2 is a front view, Fig. 3 is a front view taken along the line - - of Fig. 1, and Fig. 4 is a recording switch claw. Fig. 5 is an explanatory diagram of the state of the accidental erasure prevention claw when there is no accidental erasure prevention piece on the cassette;
The figure is an explanatory diagram of the state of the accidental erasure prevention claw when the cassette has an accidental erasure prevention piece, FIG. 7 is an explanatory diagram of the main part of the operating state on side A of the cassette, and FIG. 8 is an illustration of the main part of the operating state of the side B of the cassette. 9 is an explanatory cross-sectional view taken along the line -- in FIG. 8, and FIG. 10 is an explanatory cross-sectional view taken along the line -- in FIG. 1... Connecting rod, 1c... Relief part, 1d... First contact part, 2... Head switching plate, 3, 4... Erroneous erasure prevention claw, 3b... Projection, 3c... Second contact contact part,
7... Recording lever, 7a, 7b... Detection section, 42
...Rotating magnetic head.
Claims (1)
リバース式テープレコーダにおいて、Ａ面とＢ面
の誤消去防止爪３，４と、ヘツド切換板２の揺動
に連動して摺動し一側端に一方の誤消去防止爪３
の突部３ｂと当接して誤消去防止爪３を逃がす逃
がし部１ｃと録音レバー７の検知部７ａ，７ｂと
当接可能に臨み誤消去防止爪４の動きに連動して
上下動する第１当接部１ｄとを有する連結杆１
と、前記検知部７ｂに臨む前記一方の誤消去防止
爪３に設けられた第２当接部３ｃとを備え、前記
ヘツド切換板２の揺動で前記連結杆１を摺動して
前記第１当接部１ｄを前記検知部７ａ，７ｂのス
ライド域に挿入離脱すると共に前記逃がし部１ｃ
と誤消去防止爪３の突部３ｂとを当接させて他方
の誤消去防止爪４が作用するとき一方の誤消去防
止爪３を不作用状態とするよう構成したことを特
徴とするリバース式テープレコーダの誤消去防止
爪機構。 In a reverse type tape recorder in which a rotary magnetic head is reversed by a head switching plate 2, accidental erasure prevention claws 3 and 4 on sides A and B slide in conjunction with the swinging of the head switching plate 2, and one end On one side is the accidental erasure prevention claw 3.
A relief part 1c contacts the protrusion 3b to release the accidental erasure prevention claw 3, and a first part faces the detection parts 7a, 7b of the recording lever 7 so as to be able to come into contact with it and moves up and down in conjunction with the movement of the accidental erasure prevention claw 4. A connecting rod 1 having a contact portion 1d
and a second abutting part 3c provided on the one of the accidental erasure prevention claws 3 facing the detection part 7b, and the connecting rod 1 is slid by the swinging of the head switching plate 2, and 1, the contact portion 1d is inserted into and removed from the slide area of the detection portions 7a and 7b, and the relief portion 1c
and the protrusion 3b of the erroneous erasure prevention claw 3 are brought into contact with each other so that when the other erroneous erasure prevention claw 4 is activated, one of the erroneous erasure prevention claws 3 is rendered inactive. Tape recorder's accidental erasure prevention claw mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1909285U JPH0430669Y2 (en) | 1985-02-15 | 1985-02-15 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1909285U JPH0430669Y2 (en) | 1985-02-15 | 1985-02-15 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61136339U JPS61136339U (en) | 1986-08-25 |
| JPH0430669Y2 true JPH0430669Y2 (en) | 1992-07-23 |
Family
ID=30508342
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1909285U Expired JPH0430669Y2 (en) | 1985-02-15 | 1985-02-15 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0430669Y2 (en) |
-
1985
- 1985-02-15 JP JP1909285U patent/JPH0430669Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61136339U (en) | 1986-08-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH0430669Y2 (en) | ||
| JPH042424Y2 (en) | ||
| JPH054101Y2 (en) | ||
| KR840002237Y1 (en) | Tape recorder | |
| JPH0240596Y2 (en) | ||
| JPS5814435Y2 (en) | Tape recorder operation mode switching device | |
| JPS6037709Y2 (en) | tape recorder | |
| JPS5923248Y2 (en) | cassette tape recorder | |
| JPS581890Y2 (en) | tape recorder | |
| JPS626590Y2 (en) | ||
| JPH0433560Y2 (en) | ||
| JPH0753142Y2 (en) | Cassette type tape recorder operation lever locking device | |
| JPH0621065Y2 (en) | Bidirectional playback tape recorder | |
| JPS6144273Y2 (en) | ||
| JPS5853713Y2 (en) | tape recorder | |
| JPS5935882Y2 (en) | Sound dubbing mechanism of video tape recorder | |
| JPH0424484Y2 (en) | ||
| JPS587486Y2 (en) | Tape recorder push button regulating device | |
| KR900002235B1 (en) | Invertible tape recorder | |
| JPS5813470Y2 (en) | Automatic shut-off device for cassette tape recorder | |
| JPS5813476Y2 (en) | Tape recorder operating lever device | |
| JPS587487Y2 (en) | Tape recorder switch switching mechanism | |
| JPS5830273Y2 (en) | Misoperation prevention mechanism for tape recorders | |
| JPH0216424Y2 (en) | ||
| KR930000692Y1 (en) | Cassette door locking device |