JPS6314416B2 - - Google Patents
Info
- Publication number
- JPS6314416B2 JPS6314416B2 JP56119140A JP11914081A JPS6314416B2 JP S6314416 B2 JPS6314416 B2 JP S6314416B2 JP 56119140 A JP56119140 A JP 56119140A JP 11914081 A JP11914081 A JP 11914081A JP S6314416 B2 JPS6314416 B2 JP S6314416B2
- Authority
- JP
- Japan
- Prior art keywords
- switching
- cam
- head
- fulcrum
- energized
- 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
- 238000002788 crimping Methods 0.000 claims description 23
- 238000000034 method Methods 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B15/00—Driving, 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
- G11B15/02—Control of operating function, e.g. switching from recording to reproducing
- G11B15/10—Manually-operated control; Solenoid-operated control
Landscapes
- Adjustment Of The Magnetic Head Position Track Following On Tapes (AREA)
- Transmission Devices (AREA)
Description
【発明の詳細な説明】
この発明は磁気テープ装置に関するものであ
る。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a magnetic tape device.
従来、ヘツドの圧着動作とテープの走行方向切
換動作とを、モータの回転にしたがつて駆動する
カムを兼用して行うものがある。この種のもの
は、ヘツドの圧着動作を実行する作動部材とカム
とを直結して、カムの駆動が作動部材に直接伝動
するようにするとともに、この作動部材がヘツド
圧着位置にあるときのみ、テープの走行方向切換
動作を実行する切換部材が作動できるようにして
いた。 Conventionally, there are devices in which the crimping operation of the head and the operation of switching the running direction of the tape are performed by using a cam that is driven in accordance with the rotation of the motor. This type of device directly connects the actuating member that performs the head crimping operation to the cam so that the drive of the cam is directly transmitted to the actuating member, and only when the actuating member is in the head crimping position. A switching member for switching the running direction of the tape is operable.
しかしながら、このような従来のものは、カム
によるヘツドの圧着動作途中において、たとえば
電源が切れてモータが停止した場合はヘツドがシ
フト途中の不安定な位置で止まつてしまい、また
ストツプ操作、早送り、巻戻し操作またはイジエ
クト操作等を行おうとした場合には、ヘツドの圧
着動作が完了するまでそれらの操作を待たなけれ
ばならず、無理に操作するとヘツド等を損傷する
ことがある。また切換部材の作動途中において作
動部材の作動が解除された場合、切換部材が切換
途中の不安定な位置で止まつてしまい、そのため
テープの走行方向を完全に切換えることができな
いばかりでなく、その後のテープの走行ができな
くなることがある等の種々の欠点があつた。 However, with such conventional devices, if the power is turned off and the motor stops during the crimping operation of the head by the cam, the head will stop at an unstable position in the middle of shifting. If an attempt is made to perform a rewind operation or an eject operation, the operation must wait until the crimping operation of the head is completed, and if the operation is performed forcefully, the head etc. may be damaged. Furthermore, if the switching member is deactivated while the switching member is in the middle of operation, the switching member will stop at an unstable position in the middle of switching, and as a result, not only will it be impossible to completely switch the running direction of the tape, but also the subsequent There were various drawbacks, such as the fact that the tape could not run.
この発明は上記従来のもののもつ欠点を排除
し、ヘツドの圧着動作を実行する作動部材とカム
との伝動をヘツドの圧着動作途中においても解除
できるようにするとともに、テープの走行方向切
換動作を実行する切換部材の作動途中においては
作動部材の作動が解除されても切換部材の作動を
解除させないようにした磁気テープ装置を提供す
ることを目的とするものである。 The present invention eliminates the drawbacks of the above-mentioned conventional devices, and makes it possible to release the transmission between the actuating member and the cam that performs the crimping operation of the head even during the crimping operation of the head, and also performs the operation of switching the running direction of the tape. It is an object of the present invention to provide a magnetic tape device in which the operation of the switching member is not canceled even if the operation of the operating member is canceled during the operation of the switching member.
この発明を図面に示す実施例を参照して説明す
る。 The present invention will be described with reference to embodiments shown in the drawings.
図面はテープの走行方向切換動作の他にヘツド
の圧着動作を行う実施例を示し、以下の説明にお
いて上下左右等の用語は図中の方向を指すものと
する。まず第1a〜6a図を参照してヘツドの圧
着動作に関連した部分について説明すると、1,
1′は図示しない固定フレームに設けられたキヤ
プスタン、2はキヤプスタン1′と同軸に設けら
れ、図示しないモータの回転に連動して回転する
歯車、3は固定フレームに取付けられ、切欠部4
以外の部分が歯車2と噛合う間欠歯車、5は間欠
歯車3に一体に設けられたカムであつて、その断
続部分には段部6が形成されている。7は固定フ
レームに設けたガイドピン8,8′に長溝9,
9′が嵌合して左右に移動可能に取付けられた切
換部材、10は切換部材7に設けられ、カム5と
係合するローラ(またはピン)、11は切換部材
7を左向きに付勢するばねであつて、このばね1
1の引張力によりローラ10がカム5に当接する
ようになつている。第1a図に示すように間欠歯
車3が歯車2と噛合わない位置にあるときローラ
10はカム5の段部6に当接していて、ローラ1
0が左向きに移動しようとする力によつて、間欠
歯車3はモータ2と噛合う位置に向けて反時計方
向に回動するように付勢されている。この付勢力
に抗して間欠歯車3を第1a図に示す位置に停止
させておくものがストツパ部材12である。スト
ツパ部材12はガイドピン8′に枢支され、固定
フレームに設けた解除プランジヤ13の非通電中
はばね14の引張力により第1a図に示す位置に
あつて、間欠歯車3に設けた突起15を係止して
間欠歯車3を停止させておくようになつている。 The drawings show an embodiment in which a head crimping operation is performed in addition to the tape running direction switching operation, and in the following description, terms such as up, down, left, and right refer to the directions in the drawings. First, parts related to the crimping operation of the head will be explained with reference to FIGS. 1a to 6a.
1' is a capstan provided on a fixed frame (not shown), 2 is a gear provided coaxially with the capstan 1' and rotates in conjunction with the rotation of a motor (not shown), 3 is attached to the fixed frame, and has a notch 4.
The other part is an intermittent gear that meshes with the gear 2. Reference numeral 5 is a cam that is integrally provided with the intermittent gear 3, and a step part 6 is formed at the intermittent part. 7 is a guide pin 8, 8' provided on the fixed frame with a long groove 9,
9' is a switching member fitted and attached to be movable left and right, 10 is a roller (or pin) provided on the switching member 7 and engages with the cam 5, and 11 urges the switching member 7 leftward. It is a spring, and this spring 1
The roller 10 is brought into contact with the cam 5 by a tensile force of 1. As shown in FIG. 1a, when the intermittent gear 3 is in a position where it does not mesh with the gear 2, the roller 10 is in contact with the step 6 of the cam 5, and the roller 10 is in contact with the step 6 of the cam 5.
The intermittent gear 3 is urged to rotate counterclockwise toward a position where it meshes with the motor 2 by the force that causes the gear 0 to move leftward. The stopper member 12 resists this urging force and stops the intermittent gear 3 at the position shown in FIG. 1a. The stopper member 12 is pivotally supported by a guide pin 8', and when the release plunger 13 provided on the fixed frame is not energized, the stopper member 12 is in the position shown in FIG. The intermittent gear 3 is stopped by being locked.
16は固定フレームに設けたガイドピン17,
17′,17″にストローク制限溝18および長溝
18′,18″がそれぞれ嵌合して、ストローク制
限溝18により制限されたストロークだけ上下に
移動可能に取付けられた作動部材、19は作動部
材16に設けられたヘツド、20,20′は作動
部材16を上向きに付勢するばねであつて、この
ばね20,20′の引張力によりストローク制限
溝18の下端がガイドピン17に当接していると
きヘツド19が解除位置にあるようになつてい
る。21は作動部材16に形成されたやや縦長の
溝孔、22は支点23が溝孔21に上下動可能に
嵌合して枢支された制御部材であつて、上部右側
には傾斜面24が形成され、また上部左側には下
傾斜面25および上傾斜面26が形成されてい
る。27は制御部材22の支点23を作動部材1
6に対して上向きに付勢するばねであつて、この
ばね27の引張力はばね20,20′の引張力よ
り強大であり、そのため制御部材22が第1a,
2a図に示すように上方位置にあるときはもちろ
ん第3a図に示すように下方へ押されるときも、
ストローク制限溝18の上端がガイドピン17に
当接して作動部材16がそれ以上下方へ移動でき
なくなるまで、支点23は溝孔21の上端に当接
した状態に保持されるようになつている。 16 is a guide pin 17 provided on the fixed frame,
The stroke limiting groove 18 and the long grooves 18', 18'' fit into the stroke limiting grooves 17' and 17'', respectively, and the actuating member is mounted to be movable up and down by the stroke limited by the stroke limiting groove 18, and 19 is the actuating member 16 The heads 20, 20' provided on the holder are springs that urge the actuating member 16 upward, and the lower end of the stroke limiting groove 18 is brought into contact with the guide pin 17 due to the tensile force of the springs 20, 20'. At this time, the head 19 is in the release position. 21 is a slightly elongated slot formed in the operating member 16; 22 is a control member whose fulcrum 23 is fitted into the slot 21 so as to be movable up and down; and an inclined surface 24 on the upper right side. A lower inclined surface 25 and an upper inclined surface 26 are formed on the upper left side. 27 connects the fulcrum 23 of the control member 22 to the actuating member 1
6, the tensile force of this spring 27 is greater than the tensile force of the springs 20, 20', so that the control member 22
Not only when it is in the upward position as shown in Figure 2a, but also when pushed downward as shown in Figure 3a,
The fulcrum 23 is kept in contact with the upper end of the slot 21 until the upper end of the stroke limiting groove 18 contacts the guide pin 17 and the actuating member 16 can no longer move downward.
28は支点29が固定フレームに枢支されたセ
クタ部材であつて、切換部材7の左端凹溝に嵌合
した嵌合部30が切換部材7の移動により左右に
移動するのにともなつて、制御部材22の傾斜面
24と係合する突起31が上下に移動するように
なつている。32は支点33が固定フレームに枢
支されたロツク部材であつて、制御部材22の傾
斜面25,26と係合する突起34を具え、また
上端には嵌合部35が設けられている。36は固
定フレームに左右に移動可能に取付けられた保持
部材、37は保持部材36の左端に設けられ、ロ
ツク部材32の嵌合部35を嵌合する凹溝、38
は嵌合部35を凹溝37の右端底部に向けて保持
部材36に対して右向きに付勢するばね、39は
保持部材36の右端に設けられ、固定フレームに
設けた保持プランジヤ40と協働する可動コア、
41は可動コア39を保持プランジヤ40に呼び
込むように保持部材36を右向きに付勢するばね
である。ばね38の引張力はばね41の引張力よ
り強大であり、そのため第5a図に示すように可
動コア39が保持プランジヤ40に吸着され、か
つロツク部材32の突起34が制御部材22の上
傾斜面26に当接して制御部材22の上方移動を
阻止しているとき、このロツク状態をばね38の
引張力が保持し、また第6a図に示すように保持
プランジヤ40の通電が断たれたとき、ばね40
の引張力に抗してロツク部材32が反時計方向に
回動してロツク状態を解除するようになつてい
る。 28 is a sector member whose fulcrum 29 is pivotally supported by a fixed frame, and as the fitting part 30 fitted into the left end groove of the switching member 7 moves left and right due to the movement of the switching member 7, A protrusion 31 that engages with the inclined surface 24 of the control member 22 is adapted to move up and down. Reference numeral 32 is a locking member whose fulcrum 33 is pivotally supported by a fixed frame, and is provided with a protrusion 34 that engages with the inclined surfaces 25 and 26 of the control member 22, and a fitting portion 35 is provided at the upper end. 36 is a holding member attached to the fixed frame so as to be movable left and right; 37 is a groove provided at the left end of the holding member 36 into which the fitting portion 35 of the locking member 32 is fitted; 38
39 is a spring that biases the fitting part 35 rightward toward the right end bottom of the groove 37 with respect to the holding member 36, and 39 is provided at the right end of the holding member 36 and cooperates with a holding plunger 40 provided on the fixed frame. movable core,
A spring 41 biases the holding member 36 to the right so as to draw the movable core 39 into the holding plunger 40. The tensile force of the spring 38 is greater than the tensile force of the spring 41, so that the movable core 39 is attracted to the holding plunger 40 as shown in FIG. 26 to prevent upward movement of the control member 22, the tension of the spring 38 maintains this locked condition, and when the retaining plunger 40 is de-energized as shown in FIG. 6a, spring 40
The locking member 32 is rotated counterclockwise against the tensile force of the locking member 32 to release the locked state.
42は固定フレームに設けられ、制御部材22
の時計方向の回動域を制限するストツパ、43は
固定フレームに設けられ、制御部材22が第3a
図に示す位置から第6a図に示す位置へ変位する
際に傾斜面24がセクタ部材28の突起31から
外れた後も、ロツク部材32に追従して反時計方
向に回動してしまうことにより上傾斜面26がロ
ツク部材32の突起34から外れにくくなること
を防止するために、制御部材22の反時計方向の
回動域を規制する規制片である。 42 is provided on the fixed frame, and the control member 22
A stopper 43 for limiting the clockwise rotation range of the control member 22 is provided on the fixed frame.
Even after the inclined surface 24 comes off the protrusion 31 of the sector member 28 when it is displaced from the position shown in the figure to the position shown in FIG. 6a, it still follows the locking member 32 and rotates counterclockwise. This is a restriction piece that restricts the rotation range of the control member 22 in the counterclockwise direction in order to prevent the upper inclined surface 26 from becoming difficult to detach from the protrusion 34 of the lock member 32.
つぎに第1b〜6b図とともに第7〜12図を
参照してテープの走行方向切換動作に関連した部
分について説明すると、44は支点45が固定フ
レームに枢支された切換カムであつて、支点45
を挾んでほぼV字形のカム溝46が形成され、ま
た下端には突起47が設けられている。切換カム
44は支点45のまわりを揺動することにより、
突起47が左右に移動するのにともなつて、突起
47に嵌合した凹溝48を介して一部のみ図示し
たチヤネル切換板49を左右に移動させて、テー
プの走行方向およびチヤネルを切換えるようにな
つている。50は支点51が切換部材7に形成し
た溝孔52に移動可能に嵌合して枢支された連結
部材であつて、左端にはカム溝46に嵌合した作
用ピン53が設けられている。54は支点51を
下向きに付勢するばね、55は作用ピン53を左
向きに付勢するばねである。溝孔52は右下に凹
部56を有するほぼJ字形のものであつて、凹部
56は第7〜11図に示すように、これに支点5
1が落ち込んだとき支点51と支点45とがほぼ
同一高さとなるように位置決めされ、凹部56の
左辺は係止部57となつている。58は溝孔52
に隣接して作動部材16に形成された段部であつ
て、第1b,2b図に示すように作動部材16が
上端位置(すなわちヘツド19の解除位置)にあ
るとき、段部58の上辺が溝孔52の下辺とほぼ
同一高さとなるように位置決めされ、また段部5
8の上辺の右端に連なる傾斜辺は凹部56の下辺
とほぼ同一高さまで延びるように形成されてい
る。 Next, referring to FIGS. 7 to 12 as well as FIGS. 1B to 6B, the parts related to the switching operation of the tape running direction will be explained. Reference numeral 44 is a switching cam whose fulcrum 45 is pivotally supported on a fixed frame. 45
A substantially V-shaped cam groove 46 is formed between the two, and a projection 47 is provided at the lower end. By swinging the switching cam 44 around the fulcrum 45,
As the protrusion 47 moves left and right, the channel switching plate 49, only partially shown, is moved left and right through the groove 48 fitted into the protrusion 47, thereby switching the running direction of the tape and the channel. It's getting old. Reference numeral 50 denotes a connecting member in which a fulcrum 51 is movably fitted into a slot 52 formed in the switching member 7 and pivotally supported, and a working pin 53 fitted in a cam groove 46 is provided at the left end. . 54 is a spring that urges the fulcrum 51 downward, and 55 is a spring that urges the working pin 53 leftward. The slot 52 is approximately J-shaped with a recess 56 at the lower right side, and the recess 56 is connected to a fulcrum 5 as shown in FIGS.
1 is positioned so that when it falls, the fulcrum 51 and the fulcrum 45 are at approximately the same height, and the left side of the recess 56 serves as a locking portion 57. 58 is the slot 52
is a step formed on the actuating member 16 adjacent to the step 58, and when the actuating member 16 is in the upper end position (i.e., the release position of the head 19) as shown in FIGS. 1b and 2b, the upper side of the step 58 is It is positioned so that it is approximately at the same height as the lower side of the slot 52, and the stepped portion 5
The inclined side continuous to the right end of the upper side of the recess 56 is formed to extend to approximately the same height as the lower side of the recess 56 .
上記実施例の装置はつぎのように作用する。 The apparatus of the above embodiment operates as follows.
まずヘツドの圧着動作について説明すると、装
置の非作動中は第1a図に示す状態にある。この
とき連結部材50の支点51は溝孔52の凹部5
6より左方に位置している。(第1b図参照)。こ
の状態からたとえばカセツトを挿入すると、解除
プランジヤ13が通電し、ストツパ部材12が反
時計方向に回動して突起15から外れる。すると
ばね11の引張力によりローラ10が段部6を押
して、カム5を反時計方向に回動させながら左方
へ移動する。カム5の回動によりそれと一体の間
欠歯車3が同方向に回動して、モータにより時計
方向に回転される歯車2と噛合う。一方ローラ1
0の左方移動にともなう切換部材7の左方移動に
よりセクタ部材28の突起31が上方へ移動して
制御部材22の右側面から傾斜面24の上方へ外
れ、そのため制御部材22が時計方向に回動でき
ることとなつて、制御部材22、ロツク部材32
および保持部材36がばね41の引張力により時
計方向および右方へ移動し、可動コア39が呼び
込まれて、通電した保持プランジヤ40に吸着し
て保持される(第2a図参照)。このとき連結部
材50の支点51は凹部56の真上に来るが、作
動部材16の段部58に乗り上げているため凹部
56に落ち込まない(第2b図参照)。 First, the crimping operation of the head will be explained. When the device is not in operation, it is in the state shown in FIG. 1a. At this time, the fulcrum 51 of the connecting member 50 is located at the recess 5 of the slot 52.
It is located to the left of 6. (See Figure 1b). For example, when a cassette is inserted from this state, the release plunger 13 is energized and the stopper member 12 is rotated counterclockwise and removed from the protrusion 15. Then, the roller 10 pushes the stepped portion 6 due to the tensile force of the spring 11, and moves the cam 5 to the left while rotating it counterclockwise. As the cam 5 rotates, the intermittent gear 3, which is integral with the cam 5, rotates in the same direction and meshes with the gear 2, which is rotated clockwise by the motor. On the other hand, roller 1
Due to the leftward movement of the switching member 7 in conjunction with the leftward movement of the switch 0, the protrusion 31 of the sector member 28 moves upward and disengages from the right side of the control member 22 above the inclined surface 24, causing the control member 22 to move clockwise. The control member 22 and the lock member 32 can be rotated.
The holding member 36 is moved clockwise and to the right by the tensile force of the spring 41, and the movable core 39 is attracted and held by the energized holding plunger 40 (see FIG. 2a). At this time, the fulcrum 51 of the connecting member 50 is directly above the recess 56, but because it rides on the step 58 of the actuating member 16, it does not fall into the recess 56 (see Fig. 2b).
歯車2と噛合つた間欠歯車3は引続き同方向に
回動し、そのためカム5がローラ10を押して切
換部材7を右方へ移動させ、これにともなつてセ
クタ部材28の突起31が下方へ移動して、制御
部材22の傾斜面24を下方へ押す。制御部材2
2が下方へ押されると、作動部材16はストロー
ク制限溝18の上端がガイドピン17に当接する
まで制御部材22と一体的に下方へ押され、一方
ロツク部材32は突起34が制御部材22の下傾
斜面25に押されてばね38の引張力に抗して反
時計方向に回動する(第3a図参照)。このとき
連結部材50の支点51は溝孔52の凹部56よ
り左方に位置している(第3b図参照)。 The intermittent gear 3 meshing with the gear 2 continues to rotate in the same direction, so that the cam 5 pushes the roller 10 and moves the switching member 7 to the right, and as a result, the protrusion 31 of the sector member 28 moves downward. and push the inclined surface 24 of the control member 22 downward. Control member 2
2 is pushed downward, the actuating member 16 is pushed downward integrally with the control member 22 until the upper end of the stroke limiting groove 18 abuts the guide pin 17, while the locking member 32 is moved so that the protrusion 34 of the control member 22 It is pushed by the lower inclined surface 25 and rotates counterclockwise against the tensile force of the spring 38 (see Fig. 3a). At this time, the fulcrum 51 of the connecting member 50 is located to the left of the recess 56 of the slot 52 (see FIG. 3b).
作動部材16が下端位置(すなわちヘツド19
の圧着位置)に達したのちもローラ10がカム5
の最高点に達するまで制御部材22は引続き下方
へ押され、このとき支点23がばね27の引張力
に抗して溝孔21内を下方へ移動し、一方ロツク
部材32は突起34が下傾斜面25の上方へ外れ
て、ばね38の引張力により時計方向に回動する
(第4a図参照)。このとき連結部材50の支点5
1は溝孔52のほぼ左端に位置している(第4b
図参照)。 When the actuating member 16 is in the lower end position (i.e. the head 19
Even after the roller 10 reaches the crimping position of the cam 5
The control member 22 continues to be pushed downward until it reaches its highest point, at which time the fulcrum 23 moves downward in the slot 21 against the tension of the spring 27, while the locking member 32 is moved so that the projection 34 is inclined downwardly. It comes off above the surface 25 and rotates clockwise under the tension of the spring 38 (see Figure 4a). At this time, the fulcrum 5 of the connecting member 50
1 is located almost at the left end of the slot 52 (No. 4b
(see figure).
ローラ10がカム5の最高点を越えると、間欠
歯車3は切欠部4が歯車2と対向する位置にきて
噛合いが外れるとともに、前もつて解除プランジ
ヤ13の通電が断たれてばね14の引張力により
ストツプ位置に復帰しているストツパ部材12が
突起15を係止し、そのため間欠歯車3はこの位
置に停止する。一方切換部材7はローラ10が段
部6に当接するまでばね11の引張力により左方
へ移動し、これにともなつてセクタ部材28の突
起31が上方へ移動する。突起31による下向き
押圧力が解除された制御部材22は、上傾斜面2
6がロツク部材32の突起34に当接するまでば
ね27の引張力により上方へ移動する。上傾斜面
26が突起34に当接したロツク状態は保持プラ
ンジヤ40の保持力およびばね38の引張力によ
つて保持される。このロツク状態において制御部
材22の支点23は溝孔21の上端からわずかに
間隙を保つて位置していて、そのためばね27の
引張力が作動部材16に有効にはたらき、作動部
材16は下端位置(すなわちヘツド19の圧着位
置)に確実に保持される(第5a図参照)。テー
プのプレイ動作中このロツク状態が保持されるこ
ととなる。このとき連結部材50の支点51は第
1b図とほぼ同様の位置にある(第5b図参照)。 When the roller 10 exceeds the highest point of the cam 5, the notch 4 of the intermittent gear 3 comes to a position facing the gear 2 and the mesh is disengaged, and the energization of the front latch release plunger 13 is cut off and the spring 14 is turned off. The stopper member 12, which has returned to the stop position due to the tensile force, engages the projection 15, so that the intermittent gear 3 is stopped in this position. On the other hand, the switching member 7 is moved to the left by the tensile force of the spring 11 until the roller 10 comes into contact with the stepped portion 6, and along with this, the projection 31 of the sector member 28 is moved upward. The control member 22 from which the downward pressing force by the protrusion 31 has been released moves toward the upper inclined surface 2
6 moves upward under the tension of the spring 27 until it abuts against the protrusion 34 of the locking member 32. The locked state in which the upper inclined surface 26 is in contact with the protrusion 34 is maintained by the holding force of the holding plunger 40 and the tensile force of the spring 38. In this locked state, the fulcrum 23 of the control member 22 is located with a slight gap from the upper end of the slot 21, so that the tensile force of the spring 27 effectively acts on the actuating member 16, and the actuating member 16 is at the lower end position ( That is, the head 19 is securely held in the crimping position (see FIG. 5a). This locked state will be maintained during the tape play operation. At this time, the fulcrum 51 of the connecting member 50 is in substantially the same position as in FIG. 1b (see FIG. 5b).
以上の第2a図から第5a図に至る過程および
第5a図のロツク状態において、ヘツドの解除動
作をともなう操作を行おうとする場合には、保持
プランジヤ40の通電を断てばよい。すると保持
部材36およびロツク部材32が保持プランジヤ
40による保持力を失い、そのため作動部材16
を介して制御部材22を上方へ付勢するばね2
0,20′の引張力が、保持部材36およびロツ
ク部材32を介して制御部材22を時計方向に付
勢するばね41の引張力に打勝つ。そのため制御
部材22は、傾斜面24がセクタ部材28の突起
31を逃げるように反時計方向に回動しながら突
起31から外れ、かつ上傾斜面26がロツク部材
32の突起34を左方へ押しやるようにロツク部
材32を反時計方向に回動させながら突起34か
ら外れ、そしてストローク制限溝18の下端がガ
イドピン17に当接する位置(すなわちヘツド1
9の解除位置)まで上方へ移動して停止する。ほ
ぼ第3a,3b図の過程において保持プランジヤ
40の通電を断つと、第6a,6b図に示すよう
な状態となる。そしてモータの回転が継続してい
る場合は、間欠歯車3は第6a図の位置から引続
き回動したのち第1a図に示す位置で停止するこ
ととなる。 In the process from FIG. 2a to FIG. 5a and in the locked state shown in FIG. 5a, if an operation involving release of the head is to be performed, the holding plunger 40 may be de-energized. The retaining member 36 and locking member 32 then lose their holding force due to the retaining plunger 40, so that the actuating member 16
Spring 2 biases control member 22 upwardly via
A tension of 0.20' overcomes the tension of spring 41 which biases control member 22 clockwise through retaining member 36 and locking member 32. Therefore, the control member 22 rotates counterclockwise so that the inclined surface 24 escapes the projection 31 of the sector member 28 and comes off from the projection 31, and the upper inclined surface 26 pushes the projection 34 of the locking member 32 to the left. While rotating the lock member 32 counterclockwise, the lock member 32 is removed from the protrusion 34, and the lower end of the stroke limiting groove 18 contacts the guide pin 17 (i.e., the position where the lower end of the stroke limiting groove 18 contacts the guide pin 17).
9) and stops. When the holding plunger 40 is de-energized in the process approximately shown in FIGS. 3a and 3b, the state shown in FIGS. 6a and 6b is reached. If the motor continues to rotate, the intermittent gear 3 will continue to rotate from the position shown in FIG. 6a and then stop at the position shown in FIG. 1a.
また第2a図から第5a図に至る過程および第
5a図のロツク状態において電源が切れた場合に
も、保持プランジヤ40の通電が断たれるから、
作動部材16はただちにヘツド19の解除位置へ
移動することとなる。 Further, even if the power is cut off in the process from FIG. 2a to FIG. 5a and in the locked state of FIG. 5a, the power to the holding plunger 40 is cut off.
The actuating member 16 will immediately move to the release position of the head 19.
つぎにテープの走行方向切換動作について説明
する。第5a図に示すテーププレイ状態において
解除プランジヤ13に通電すると、ストツパ部材
12が突起15から外れ、カム5が回動して間欠
歯車3が第2a図と同様に歯車2と噛合う。一方
作動部材16は下端位置(すなわちヘツド19の
圧着位置)にあるため、切換部材7の左方移動に
ともなつて連結部材50の支点51がばね54の
引張力により凹部56に落ち込む(第7図参照)。 Next, the tape running direction switching operation will be explained. When the release plunger 13 is energized in the tape play state shown in FIG. 5a, the stopper member 12 comes off the protrusion 15, the cam 5 rotates, and the intermittent gear 3 meshes with the gear 2 as in FIG. 2a. On the other hand, since the actuating member 16 is at the lower end position (that is, the crimping position of the head 19), as the switching member 7 moves leftward, the fulcrum 51 of the connecting member 50 falls into the recess 56 due to the tensile force of the spring 54 (the seventh (see figure).
この状態から間欠歯車3の回動により切換部材
7が右方へ移動するのにともなつて、連結部材5
0は支点51が係止部57に係止されて、ばね5
5の引張力に抗して右方へ移動される。そのため
作用ピン53はカム溝46の上方部分に嵌り込
み、その右端を引張つて切換カム44を時計方向
に揺動させ、それにより突起47を介してチヤネ
ル切換板49が左方へ移動して、テープの走行方
向およびチヤネルを切換えることとなる(第8,
9図参照)。 From this state, as the switching member 7 moves to the right due to the rotation of the intermittent gear 3, the connecting member 5
0, the fulcrum 51 is locked to the locking part 57 and the spring 5
It is moved to the right against the pulling force of 5. Therefore, the working pin 53 fits into the upper part of the cam groove 46 and pulls its right end to swing the switching cam 44 clockwise, thereby moving the channel switching plate 49 to the left via the protrusion 47. The running direction of the tape and the channel will be changed (8th,
(See Figure 9).
間欠歯車3が1回転して突起15がストツパ部
材12に係止されると、切換部材7とともに連結
部材50が左方へ移動して、作用ピン53がカム
溝46の上方部分の左端に位置するところで停止
する(第10図参照)。 When the intermittent gear 3 rotates once and the protrusion 15 is locked with the stopper member 12, the connecting member 50 moves to the left together with the switching member 7, and the working pin 53 is positioned at the left end of the upper part of the cam groove 46. It stops at that point (see Figure 10).
第8図から第9図に至る過程すなわち切換カム
44の作動途中においては、作動部材16が下端
位置から上端位置へ復帰しても、凹部56は段部
58の傾斜辺より右方に位置していて段部58が
凹部56内に侵入しないため、支点51は凹部5
6から外されず、連結部材50は支点51が係止
部57に係止された状態に保たれる(第11図参
照)。 In the process from FIG. 8 to FIG. 9, that is, during the operation of the switching cam 44, even if the actuating member 16 returns from the lower end position to the upper end position, the recessed portion 56 is located to the right of the inclined side of the stepped portion 58. Since the stepped portion 58 does not enter the recessed portion 56 when the fulcrum 51 is
6, and the connecting member 50 is kept in a state in which the fulcrum 51 is locked to the locking portion 57 (see FIG. 11).
作動部材16が上端位置に戻る場合としては、
F.F./REW操作の為、イジエクト操作の為、メ
カニズムの通電が切られた時(ピンチローラ等が
圧着位置に放置され変形する事を防ぐ為)、スト
ツプモードを設けた場合のストツプ動作、が考え
られる。 When the actuating member 16 returns to the upper end position,
For FF/REW operation, for eject operation, when the power to the mechanism is cut off (to prevent the pinch roller etc. from being left in the crimping position and being deformed), and stop operation when a stop mode is provided. .
F.F./REW操作(ストツプ動作時再生は停止
してもモータの通電は行れる場合)時において
は、モータの通電は行われている為フライホイー
ルは回転するので、間欠歯車3及びカム5は回転
させられ、切換部材7は右方への摺動を継続す
る。連結部材50は切換部材7に係止されたまま
であるから、切換カム44の回動は続行され、チ
ヤネル切換板49が所要のストローク動作した所
でカム5の頂点に切換部材7が達し、切換部材7
は頂点をのり越え左方に復帰すると共に、連結部
材50は、支点51が作動部材16後端の段部5
8を通過する時後方に押しのけられることにより
切換部材7との係合が外れる。これによりパワー
機構はヘツド後退時のリセツト状態となり、F.
F./REW操作を終了し、再生動作とする場合、
ヘツドシフト動作に即時対応出来ると共に、チヤ
ネル切換板49が中間位置にある為テープの走行
が開始出来ないといつた不具合を発生しない。 During FF/REW operation (when the motor can be energized even if regeneration is stopped during stop operation), the motor is energized and the flywheel rotates, so the intermittent gear 3 and cam 5 do not rotate. The switching member 7 continues to slide to the right. Since the connecting member 50 remains locked to the switching member 7, the switching cam 44 continues to rotate, and when the channel switching plate 49 has made the required stroke, the switching member 7 reaches the top of the cam 5, and the switching is completed. Part 7
passes over the apex and returns to the left, and the fulcrum 51 of the connecting member 50 reaches the step 5 at the rear end of the actuating member 16.
When passing through the switching member 8, it is pushed backward and disengaged from the switching member 7. This puts the power mechanism in the reset state when the head is retracted, and the F.
F. To end the REW operation and start playback,
In addition to being able to respond immediately to head shift operations, problems such as not being able to start running the tape because the channel switching plate 49 is in the intermediate position do not occur.
次に、イジエクト操作、電源を切つた場合(ス
トツプ動作にてモーターの通電を切つた場合)等
においては、電源が切られる為パワー機構のカム
5が動作途中で停止したままになる。この時再度
使用する為カセツトを挿入したり、通電を再開し
た時、本来パワー機構のカム5がフルサイクル回
動し、リセツト状態にある場合にはヘツドシフト
機構が動作し、テープ再生が行われるが、この場
合カム5は途中位置にあり、間欠歯車3と噛み合
い状態にある為、モータの回転と同時に残つたサ
イクル分回動し、一旦リセツト状態になる。この
間ヘツドシフト機構とは係合されず、チヤネル切
換板49を中間位置より所定の位置に戻す動作が
行われ、後は上述の様にヘツドシフト動作が行わ
れることになる。 Next, when an eject operation is performed or the power is turned off (when the motor is de-energized by a stop operation), the power is turned off and the cam 5 of the power mechanism remains stopped in the middle of operation. At this time, when the cassette is inserted for reuse or the power supply is restarted, the cam 5 of the power mechanism normally rotates for a full cycle, and if it is in the reset state, the head shift mechanism operates and the tape is played back. In this case, since the cam 5 is at an intermediate position and in mesh with the intermittent gear 3, it rotates for the remaining cycle at the same time as the motor rotates, and is temporarily reset. During this time, the channel switching plate 49 is not engaged with the head shift mechanism, and the channel switching plate 49 is returned from the intermediate position to the predetermined position, and then the head shift operation is performed as described above.
また切換カム44の作動終了後すなわち第10
図の状態において作動部材16が下端位置から上
端位置へ復帰すると、この場合には段部58が凹
部56内に侵入する位置にあるから、段部58が
支点51を押し上げて凹部56から外し(第12
図参照)、そのため連結部材50は第5b図に示
す位置に復帰する。 Also, after the operation of the switching cam 44 is completed, that is, the 10th
When the actuating member 16 returns from the lower end position to the upper end position in the state shown in the figure, in this case the step 58 is in a position where it enters into the recess 56, so the step 58 pushes up the fulcrum 51 and removes it from the recess 56 ( 12th
), so that the connecting member 50 returns to the position shown in FIG. 5b.
第10図の状態から再び解除プランジヤ13に
通電すると、今度は切換カム44が第5b図に示
す角度でなく第10図に示す角度にあるから、作
用ピン53はカム溝46の下方部分に嵌り込んで
切換カム44を反時計方向に揺動させ、それによ
りチヤネル切換板49が右方へ移動してテープの
走行方向を前記と逆方向に切換えることとなる。 When the release plunger 13 is energized again from the state shown in FIG. 10, the switching cam 44 is now at the angle shown in FIG. 10 instead of the angle shown in FIG. 5b, so the working pin 53 fits into the lower part of the cam groove 46. Then, the switching cam 44 is swung counterclockwise, thereby moving the channel switching plate 49 to the right and switching the tape running direction to the opposite direction.
なお、上記実施例では制御部材22を作動部材
16に対して上下動可能に枢着したが単に枢着し
てもよく、また保持プランジヤ40を第2a図か
ら第5a図に至る過程における保持だけでなく第
5a図のロツク状態における保持にも兼用した
が、別々に設けてもよく、またテープの走行方向
切換動作の他にヘツドの圧着動作を行うようにし
たがこれに限定するものでなく、その他この発明
は上記実施例の種々の変更、修正が可能であるこ
とはいうまでもない。 In the above embodiment, the control member 22 is pivoted to be movable up and down with respect to the actuation member 16, but it may simply be pivoted, and the holding plunger 40 may only be held in the process from FIG. 2a to FIG. 5a. Instead, it is also used for holding in the locked state shown in Fig. 5a, but it may also be provided separately, and in addition to the tape running direction switching operation, the head crimping operation is performed, but the present invention is not limited to this. It goes without saying that the present invention can be modified in various ways to the above-described embodiments.
この発明は上記のように構成したので、ヘツド
の圧着動作を実行する作動部材とカムとの伝動を
ヘツドの圧着動作途中においても解除することが
でき、そのためカムによる作動部材のヘツド圧着
動作実行中に電源が切れてモータが停止したり、
他の操作を行おうとした場合に、電磁プランジヤ
の通電を断つことによつて作動部材を安定した状
態にもたらすことができる。またテープの走行方
向切換動作を実行する切換部材の作動途中におい
ては作動部材の作動が解除されても切換部材の作
動を続行させることができ、そのため切換部材が
切換途中の不安定な位置で止まつてしまうことが
なく、テープの走行方向をつねに確実かつ完全に
切換えることができる等のすぐれた効果を有する
ものである。 Since this invention is constructed as described above, the transmission between the cam and the actuating member that performs the crimping operation of the head can be canceled even during the crimping operation of the head, and therefore, while the cam is performing the crimping operation of the actuating member with the head. The power may turn off and the motor may stop, or
When another operation is attempted, the actuating member can be brought into a stable state by de-energizing the electromagnetic plunger. In addition, during the operation of the switching member that performs the operation of switching the running direction of the tape, the operation of the switching member can be continued even if the operation of the operating member is canceled, so that the switching member stops at an unstable position in the middle of switching. This has excellent effects such as being able to always reliably and completely switch the running direction of the tape without causing the tape to run over.
図面はこの発明の一実施例を示し、第1a〜6
a図はヘツドの圧着動作に関連した部分の動作状
態を示す平面図、第1b〜6b図はそれぞれ第1
a〜6a図におけるテープの走行方向切換動作に
関連した部分を示す平面図、第7〜10図はそれ
ぞれ第2b〜5b図にほぼ対応したテープの走行
方向切換動作状態を示す平面図、第11,12図
は作動部材が復帰したときの連結部材の状態を示
す平面図である。
1,1′:キヤプスタン、2:歯車、3:間欠
歯車、4:切欠部、5:カム、6,58:段部、
7:切換部材、8,8′,17,17′,17″:
ガイドピン、9,9′,18′,18″:長溝、1
0:ローラ、11,14,20,20′27,3
8,41,54,55:ばね、12:ストツパ部
材、13:解除プランジヤ、15,31,34,
47:突起、16:作動部材、18:ストローク
制限溝、19:ヘツド、21,52:溝孔、2
2:制御部材、23,29,33,45,51:
支点、24,25,26:傾斜面、28:セクタ
部材、30,35:嵌合部、32:ロツク部材、
36:保持部材、37,48:凹溝、39:可動
コア、40:保持プランジヤ、42:ストツパ、
43:規制片、44:切換カム、46:カム溝、
49:チヤネル切換板、50:連結部材、53:
作用ピン、56:凹部、57:係止部。
The drawings show one embodiment of the present invention, and include parts 1a to 6.
Figure a is a plan view showing the operating state of the parts related to the crimping operation of the head, and Figures 1b to 6b are the first and second views.
FIGS. 7 to 10 are plan views showing portions related to the switching operation of the tape running direction in FIGS. 2b to 5b, respectively. , 12 are plan views showing the state of the connecting member when the actuating member returns. 1, 1': Capstan, 2: Gear, 3: Intermittent gear, 4: Notch, 5: Cam, 6, 58: Step,
7: Switching member, 8, 8', 17, 17', 17'':
Guide pin, 9, 9', 18', 18'': long groove, 1
0: Roller, 11, 14, 20, 20'27, 3
8, 41, 54, 55: Spring, 12: Stopper member, 13: Release plunger, 15, 31, 34,
47: Projection, 16: Operating member, 18: Stroke limiting groove, 19: Head, 21, 52: Slot hole, 2
2: Control member, 23, 29, 33, 45, 51:
fulcrum, 24, 25, 26: inclined surface, 28: sector member, 30, 35: fitting part, 32: lock member,
36: Holding member, 37, 48: Concave groove, 39: Movable core, 40: Holding plunger, 42: Stopper,
43: Regulating piece, 44: Switching cam, 46: Cam groove,
49: Channel switching board, 50: Connection member, 53:
Working pin, 56: recessed portion, 57: locking portion.
Claims (1)
カムにより作動せしめられる切換部材により、付
勢部材の付勢力に抗してヘツドを圧着位置にもた
らす作動部材とテープ走行方向を切換える切換カ
ムとを作動せしめ、前記作動部材の前進・後退位
置により前記切換カムと切換部材との連結・非連
結を制御される連結部材を有するものにおいて、 電磁プランジヤの通電時に前記切換部材にて作
動部材をヘツドの圧着位置に作動させ、前記電磁
プランジヤの通電が断たれた時前記切換部材と前
記作動部材との連動をヘツドの圧着位置および圧
着動作途中において解除させる制御部材を設ける
とともに、 切換カムの作動途中で上記電磁プランジヤの通
電が断たれた場合、テープの両方向走行のどちら
か一方に決定できるように前記作動部材に上記連
結部材を制御する段部を含む制御部を設けたこと
を特徴とする磁気テープ装置。 2 前記作動部材に設けられた制御部の段部がテ
ーパー状である特許請求の範囲第1項記載の磁気
テープ装置。[Scope of Claims] 1. A cam is provided on an intermittent gear driven by a motor, and a switching member operated by the cam is used to control an actuating member that brings the head to a crimping position against the biasing force of a biasing member and the tape running direction. A connecting member that operates a switching cam that switches the switching member, and has a connecting member that controls connection/disconnection between the switching cam and the switching member depending on the forward/backward position of the operating member, wherein the switching member is activated when the electromagnetic plunger is energized. a control member that operates the actuating member to the crimping position of the head, and releases the interlock between the switching member and the actuating member when the electromagnetic plunger is de-energized at the crimping position of the head and during the crimping operation; The operating member is provided with a control unit including a stepped portion for controlling the connecting member so that when the electromagnetic plunger is de-energized during operation of the switching cam, it can be determined whether the tape runs in either direction. A magnetic tape device featuring: 2. The magnetic tape device according to claim 1, wherein the stepped portion of the control portion provided on the operating member is tapered.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56119140A JPS5845642A (en) | 1981-07-31 | 1981-07-31 | Magnetic tape device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56119140A JPS5845642A (en) | 1981-07-31 | 1981-07-31 | Magnetic tape device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5845642A JPS5845642A (en) | 1983-03-16 |
JPS6314416B2 true JPS6314416B2 (en) | 1988-03-30 |
Family
ID=14753913
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP56119140A Granted JPS5845642A (en) | 1981-07-31 | 1981-07-31 | Magnetic tape device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5845642A (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH07118123B2 (en) * | 1982-06-23 | 1995-12-18 | ソニー株式会社 | Operation switching mechanism in electronic equipment |
JPS6295401A (en) * | 1985-10-22 | 1987-05-01 | Tokyo Keiso Kk | Position detecting device |
DE3638622A1 (en) * | 1986-11-12 | 1988-05-26 | Mannesmann Kienzle Gmbh | MAGNETIC SENSOR |
JP2010264229A (en) * | 2009-04-17 | 2010-11-25 | Kokuyo Co Ltd | Scissors |
-
1981
- 1981-07-31 JP JP56119140A patent/JPS5845642A/en active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS5845642A (en) | 1983-03-16 |
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