JPH0280332U

JPH0280332U -

Info

Publication number: JPH0280332U
Application number: JP15998088U
Authority: JP
Priority date: 1988-12-08
Filing date: 1988-12-08
Publication date: 1990-06-20
Anticipated expiration: 2003-12-08
Also published as: JPH0734504Y2

Description

[Brief explanation of drawings]

図面は本考案の実施例を示すものであり、第１
図は本考案の実施例によるテーププレーヤの全体
構造を示す斜視図、第２図〜第６図は上記実施例
によるテーププレーヤの駆動機構部分を動作モー
ド別に示す平面図であり、第２図はストツプモー
ド、第３図はプレイモード、第４図はＦＦモード
、第５図はレビユーモード、第６図はＲＥＷモー
ドである。第７図はリール台の回転検知機構を示
す平面図、第８図はモータの制御回路を示す回路
ブロツク図、第９図はモータの制御を示すフロー
チヤートである。１……シヤーシ、２，３……リール台、４，５
……リールギヤ、５ａ……検知パターン、６……
キヤプスタン、７……フライホイール、８……ベ
ルト、９……駆動ギヤ、１２……遊星ギヤ、１５
……モード切換ギヤ、１５ａ……歯の欠損部、１
５ｂ……歯、１６……第１の切換カム、１７……
第２の切換カム、１８……ストツパ、２０……ヘ
ツドベース、２０ａ……折曲げ片、２１……スプ
リング、２２……ピンチローラ、３１……回転検
知器、３３……ＣＰＵ、３４……モータ駆動回路
、Ｈ……磁気ヘツド、Ｍ……モータ。 The drawings show an embodiment of the present invention.
FIG. 2 is a perspective view showing the overall structure of a tape player according to an embodiment of the present invention, FIGS. 3 shows the play mode, FIG. 4 shows the FF mode, FIG. 5 shows the review mode, and FIG. 6 shows the REW mode. FIG. 7 is a plan view showing the rotation detection mechanism of the reel stand, FIG. 8 is a circuit block diagram showing the motor control circuit, and FIG. 9 is a flowchart showing the motor control. 1... Seat, 2, 3... Reel stand, 4, 5
...Reel gear, 5a...Detection pattern, 6...
Capstan, 7... Flywheel, 8... Belt, 9... Drive gear, 12... Planetary gear, 15
...Mode switching gear, 15a...Tooth loss, 1
5b...teeth, 16...first switching cam, 17...
Second switching cam, 18... stopper, 20... head base, 20a... bending piece, 21... spring, 22... pinch roller, 31... rotation detector, 33... CPU, 34... motor Drive circuit, H...Magnetic head, M...Motor.

Claims

[Scope of Claim for Utility Model Registration] A drive gear rotationally driven by a motor, a planetary gear that revolves around the drive gear according to the rotational direction of the drive gear while constantly meshing with the drive gear, and one of the drive gears. A take-up reel gear and a supply reel gear are disposed at a position where the planetary gears revolved when the drive gear rotates in the opposite direction engage, and a position where the planetary gears orbited during the rotation of the drive gear in the opposite direction engage, respectively; The take-up reel stand and the supply reel stand rotated by the reel gear, and the planetary gear meshes with the planetary gear in the middle of a circular trajectory in which it moves from a position where it meshes with one reel gear to a position where it meshes with the other reel gear. a mode switching gear partially provided with teeth so that it can be rotated by a certain angle by a planetary gear; and a mode switching gear that rotates together with the mode switching gear to move a head base on which a magnetic head is mounted. and a switching cam that controls the motor to a constant state when a stop command is issued during a mode in which the planetary gear meshes with the take-up reel gear and the take-up reel table is rotationally driven. The tape is time-driven to run the tape over a certain amount by the reel stand on the take-up side, then the motor is reversed to reverse the drive gear, the planetary gear is engaged with the reel gear on the supply side, and the reel stand on the supply side runs the tape over a certain amount. A mode switching device for a tape player, comprising a control circuit that rewinds the tape by the overtravel amount and then stops the motor. 2. The mode switching device for a tape player according to claim 1, wherein the motor is driven at a higher speed than in the play mode when the tape is over-traveled by a certain amount.