Claims
- 1. A tape recorder comprising: a single motor for moving a recording tape in forward and reverse direction, respectively,
- a reel mechanism provided with a pair of reel shafts;
- a motive power-transmitting mechanism provided with a pair of drive members which are respectively concentrically fitted to the pair of reel shafts so as to be rotatable relative to the respective reel shaft and supplied with motive power of the motor, respectively;
- a pair of one-way clutch mechanisms, each of which is received in the respective reel mechanism, and, during rotation of the drive member fitted to the respective reel shaft in one direction, transmits the motive power of said drive member to the respective reel shaft, and during rotation of the drive member in the other direction, ceases to transmit the motive power of said drive member, the reel shafts being capable of rotating in opposite directions by means of the respective one-way clutch mechanism, means for effecting a constant rotation speed of said motor in both the forward and reverse direction, including means for detecting the actual number of rotations of the motor and means for making a comparison between a value obtained by said detection and a control target value designed to set the motor rotation at a prescribed speed, and means for minimzing the difference resulting from the comparison; and
- means for accelerating the rotation speed of said motor for fast forward and rewinding of the tape, including means for releasing a servo control to let the motor run at a maximum speed, whereby the motor is driven in the forward direction for the fast forward run and in the reverse direction for the rewind tape run at high speed and further in the forward direction for the reproduction and in the reverse direction for reversing the tape.
- 2. The tape recorder according to claim 1, including a motor control circuit and a switch in said motor control circuit, for driving the motor selectively at high prescribed speed and in the forward or reverse direction.
Priority Claims (3)
Number |
Date |
Country |
Kind |
53-141616 |
Nov 1978 |
JPX |
|
53-141618 |
Nov 1978 |
JPX |
|
53-157809 |
Nov 1978 |
JPX |
|
Parent Case Info
This is a division of application Ser. No. 090,900, filed Nov. 5, 1979.
US Referenced Citations (6)
Divisions (1)
|
Number |
Date |
Country |
Parent |
90900 |
Nov 1979 |
|