JPS6452130U

JPS6452130U -

Info

Publication number: JPS6452130U
Application number: JP14435587U
Authority: JP
Priority date: 1987-09-24
Filing date: 1987-09-24
Publication date: 1989-03-30

Description

[Brief explanation of the drawing]

図面は本考案の一実施例が示され、第１図はテ
ープレコーダのモード切換機構の録・再モードに
於ける基板を透視した要部平面図、第２図は同テ
ープレコーダのモード切換機構の平面図、第３図
はピンチアームの斜視図、第４図は巻き戻しモー
ドに於ける基板を透視した要部平面図、第５図は
同平面図、第６図は斜視図である。３……ピンチアーム、４……アシスト歯車、４
ａ，４ｂ……欠歯部、４ｃ，４ｄ……度当部、４
ｆ……偏心カム、５……ギヤーアーム、５ｂ……
突起部、１４……巻取リール歯車、１５……供給
リール歯車、１６……キヤプスタン軸、１７……
フライホイール、１９……両方向回転するモータ
、２０……キヤプスタン歯車、２１，２２……ギ
ヤー、３０……ピンチローラ。 The drawings show an embodiment of the present invention, and FIG. 1 is a plan view of the main part of the mode switching mechanism of a tape recorder in the recording/playback mode, looking through the board, and FIG. 2 is the mode switching mechanism of the tape recorder. 3 is a perspective view of the pinch arm, FIG. 4 is a plan view of the main part seen through the board in the rewind mode, FIG. 5 is the same plan view, and FIG. 6 is a perspective view. 3...Pinch arm, 4...Assist gear, 4
a, 4b...Toothless part, 4c, 4d...Double part, 4
f...Eccentric cam, 5...Gear arm, 5b...
Projection, 14... Take-up reel gear, 15... Supply reel gear, 16... Capstan shaft, 17...
Flywheel, 19...motor rotating in both directions, 20...capstan gear, 21, 22...gear, 30...pinch roller.

Claims

[Scope of utility model registration request]

A motor that rotates in both directions, a capstan shaft provided integrally with the flywheel rotated by this motor, a gear arm provided at the same rotation center as this capstan shaft, and a capstan gear provided on both sides of this gear arm, a gear that meshes with the gear, a take-up and supply reel gear that selectively meshes with the gear, an assist gear that has a toothless portion that meshes with the capstan gear, and the gear that the protrusion provided on the gear arm abuts. The assist gear includes an abutment part provided on the assist gear and an eccentric cam provided on the assist gear in sliding contact with a pin provided on a pinch arm supporting a pinch roller, and rotates in the same direction as the rotational direction of the motor. A trigger means for pushing the abutment part of the assist gear with the protrusion of the gear arm engaged with the capstan gear in the direction in which the assist gear is pushed, and controlling the pressing of the pinch roller against the capstan shaft and the separation thereof. A mode switching mechanism for a tape recorder characterized by the following.