JPS6235425U

JPS6235425U -

Info

Publication number: JPS6235425U
Application number: JP12289985U
Authority: JP
Priority date: 1985-08-09
Filing date: 1985-08-09
Publication date: 1987-03-02

Description

[Brief explanation of the drawing]

第１図乃至第２７図に本考案におけるオートリ
バーステープレコーダの実施例を示したもので、
第１図はオートリバーステープレコーダの主要部
を示す正面図、第２図Ａは、同上における駆動カ
ムの正面図、第２図Ｂは同上の側面図、第２図Ｃ
は同上の背面図、第３図は駆動カムとストツプ検
出スイツチとの関係を示す正面図、第４図は第３
図の縦断面図、第５図は駆動カムとソレノイドと
の関係を示した背面図、第６図Ａはストツプ状態
の主要正面図、第６図Ｂは同上の背面図、第７図
Ａはプレイ状態の主要正面図、第７図Ｂは同上の
背面図、第８図Ａはキユー・レビユー状態の主要
正面図、第８図Ｂは同上の背面図、第９図Ａ，Ｂ
は駆動カムの作動例を示した正面図、第１０図は
、メカニズムのモードと各スイツチの状態を示し
たタイムチヤート表、第１１図は各スイツチの説
明図であり第１２図はオートリバーステープレコ
ーダの主要部を示す正面図、第１３図は第１２図
の一部の側面図、第１４図は第１２図の一部の平
面図、第１５図はシヤーシの裏側の機構をシヤー
シの表側から透視した正面図、第１６図は駆動カ
ムの背面を示す拡大図、第１７図ａ，ｂはストツ
プ状態を示す動作説明図、第１８図ａ，ｂはフオ
ワードプレイ状態を示す動作説明図、第１９図ａ
，ｂはストツプ状態を示す動作説明図、第２０図
はリバースプレイに移行する状態を示す動作説明
図、第２１図ａ，ｂはリバースプレイ状態を示す
動作説明図、第２２図〜第２６図はアームの状態
を示す動作説明図、第２７図は本考案におけるコ
ントロール回路図である。１……シヤーシ、２，３……キヤプスタン、７
，８……ピンチローラ、１５，１６……巻ばね、
１７……ヘツドベース、１７ｃ，１７ｄ……押圧
突起、２０……回転ヘツド（磁気ヘツド）、２４
……切換レバー、２４ｃ，２４ｄ……ストツパ、
２６……駆動ピン、２７……駆動カム、２７Ｐ…
…スイツチカム部、３１……レバー、３３……ロ
ツクピン、３４……ソレノイド、３６……アーム
、３７……アーム、３８，４０……ばね、４１…
…デイレクシヨンスイツチ、４３……ストツプ検
出スイツチ、４４……プレイ検出スイツチ、４５
……プレイキユースイツチ、４７……フオワード
プレイスイツチ、４９……リバースプレイスイツ
チ、５０……早送りスイツチ、５１……巻戻しス
イツチ、５２……ストツプスイツチ。 1 to 27 show examples of the auto-reverse tape recorder according to the present invention,
Figure 1 is a front view showing the main parts of the auto-reverse tape recorder, Figure 2A is a front view of the drive cam in the same as above, Figure 2B is a side view in the same as above, Figure 2C is
is a rear view of the same as above, Figure 3 is a front view showing the relationship between the drive cam and the stop detection switch, and Figure 4 is a rear view of the same as above.
5 is a rear view showing the relationship between the drive cam and the solenoid, FIG. 6A is a main front view in the stopped state, FIG. 6B is a rear view of the same, and FIG. 7A is a rear view showing the relationship between the drive cam and the solenoid. Main front view in play state, Fig. 7B is a back view of the same as above, Fig. 8A is a main front view of same as above, Fig. 8B is a back view of same as above, Fig. 9A, B
is a front view showing an example of the operation of the drive cam, Fig. 10 is a time chart showing the mode of the mechanism and the status of each switch, Fig. 11 is an explanatory diagram of each switch, and Fig. 12 is an auto-reverse tape. A front view showing the main parts of the recorder, Fig. 13 is a side view of a part of Fig. 12, Fig. 14 is a plan view of a part of Fig. 12, and Fig. 15 shows the mechanism on the back side of the chassis on the front side of the chassis. 16 is an enlarged view showing the back side of the drive cam, FIGS. 17a and 17b are explanatory views of the operation showing the stop state, and FIGS. 18a and b are explanatory views of the operation showing the forward play state. , Figure 19a
, b is an explanatory diagram of the operation showing the stop state, FIG. 20 is an explanatory diagram of the operation showing the state of transition to reverse play, FIGS. 21a and b are explanatory diagrams of the operation showing the reverse play state, and FIGS. 22 to 26. 27 is an operation explanatory diagram showing the state of the arm, and FIG. 27 is a control circuit diagram in the present invention. 1...Shashi, 2, 3...Capstan, 7
, 8...pinch roller, 15, 16... coiled spring,
17... Head base, 17c, 17d... Press projection, 20... Rotating head (magnetic head), 24
...Switching lever, 24c, 24d...Stopper,
26... Drive pin, 27... Drive cam, 27P...
... Switch cam part, 31 ... Lever, 33 ... Lock pin, 34 ... Solenoid, 36 ... Arm, 37 ... Arm, 38, 40 ... Spring, 41 ...
... Direction switch, 43 ... Stop detection switch, 44 ... Play detection switch, 45
...Play key switch, 47...Forward play switch, 49...Reverse play switch, 50...Fast forward switch, 51...Rewind switch, 52...Stop switch.

Claims

[Scope of utility model registration request]

In an auto-reverse tape recorder equipped on a chassis with a pair of capstans that rotate in opposite directions, a pair of pinch rollers facing each capstan, and a head base that moves a magnetic head toward and away from the tape, the head base includes:
A play detection switch and a play key switch are provided with a pair of pressing parts that press each pinch roller in the direction of the corresponding capstan via a spring when the magnetic head approaches, and detect the moving position of the head base, which is movable on the chassis. and place
Further, there is provided a stopper corresponding to each pinch roller that prevents the pinch roller from moving toward the corresponding capstan, and the pair of stoppers are alternately displaced to positions that prevent each pinch roller from approaching the corresponding capstan. A switching lever that can be moved freely on the chassis is provided, a driving member is provided for moving the switching lever in the moving direction, and a stop position is detected by a switch cam portion of a driving cam constituting the driving member. An auto-reverse tape recorder characterized in that a detection switch is arranged, and a direction switch is arranged to detect the movement position of the switching lever in one direction.