JPH01107024U - - Google Patents

Description

[Brief explanation of the drawing]

1 to 6 show an embodiment of the present invention. FIG. 1 is a plan view showing the mode switching device of an auto-reverse tape player in stop mode from the chassis surface side, and FIG. 2 is a plan view showing the mode switching device in play mode. FIG. 3 is a plan view showing the mode switching device of the auto-reverse tape player from the front side of the chassis. FIG. 3A is a plan view of the switching gear, FIG. 3B is a left side view thereof, and FIG. 3C is a rear view thereof. FIGS. 4 to 6 are plan views showing mechanisms disposed on the back side of the chassis as seen through the chassis;
The figure shows the stop mode, FIG. 5 shows the normal play mode, and FIG. 6 shows the reverse play mode. Fig. 7 is a plan view showing the mode switching device of an auto-reverse type tape player from the front side of the chassis, and Fig. 8 is a plan view showing the mode switching device of an auto-reverse tape player from the front side of the chassis. FIG. 20... Chassis, 21a, 21b... Reel stand,
22a, 22b...Capstan, 23...Head base, 23a, 23b...Regulating portion of head base,
24...Magnetic head, 25a, 25b...Pinch roller, 28a, 28b...Holder pin, 29...Drive gear, 30...Switching gear, 32...Teeth, Head drive cam, 36... Regulation cam, 37... Normal switching cam, 38... Reverse switching cam, 40... Lock member (lock lever), 40a... Lock lever switching pressing part, 42... Lock pin, S... Solenoid, 50... Reverse switching lever , 53... Drive unit (
drive pin), 55a, 55b...reverse switching lever regulating part.

Claims (1)

[Scope of utility model registration request] a drive gear rotationally driven by a motor; a switching gear having teeth that mesh with the drive gear and having a missing tooth; and when the missing part faces the drive gear. It is driven by a locking member that comes into contact with a stopper part provided on the switching gear to lock the switching gear, a solenoid that drives this locking member in the locking direction and an unlocking direction, and a head drive cam provided on the switching gear. The magnetic head moves between a play mode position in which it contacts the tape and a stop mode position in which it moves away from the tape, and is driven by a reverse switching cam provided on a switching gear and moves toward the capstan of a pair of pinch rollers depending on the drive position. In the mode switching device for an auto-reverse tape player, the mode switching device for an auto-reverse tape player is provided with a reverse switching lever having a regulating portion that alternately regulates the movement of the tape player. The switching gear is provided with a switching pressing portion that presses the reverse switching lever to move the reverse switching lever to a position where it is driven by the reverse switching cam, and the switching gear is provided with a switching gear that presses the reverse switching lever to move the reverse switching lever to a position where it is driven by the reverse switching cam. A mode switching device for an auto-reverse tape player, characterized in that a regulating cam is provided for moving the reverse switching lever to a position out of the operating range of the switching pressing section.