JPH0216444Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a slot-in type cassette tape recorder, and is designed to easily determine whether an eject operation is in progress.

For example, as shown in Figure 1, when cassette 3 is inserted horizontally from position A to position B through cassette insertion slot 1, it moves vertically and is attached to the tape drive unit at position C, where it is set to play or record mode. In this type of cassette tape recorder, the cassette is moved manually from position A to position B, the cassette is mounted from position B to position C using the force of a spring, and the cassette is ejected manually from position C to position B. Alternatively, a mechanism that uses the force of a motor and moves from position B to position A using spring force is common.

Here, in the case where the driving force of a motor is used to move the cassette from position C to position B, it is only necessary to turn on a switch and drive the motor, which is easier than when moving the cassette manually.

However, since it uses the driving force of the motor, it cannot obtain sufficient torque compared to the manual type, so it takes a long time (3 to 4 seconds), and during the process, I accidentally put another cassette into the cassette insertion slot 1. The problem was that if you forced it in, you could damage the cassette tape recorder.

The present invention eliminates these drawbacks.

An example of the present invention is shown below in Figures 1, 2, and 3.
This will be explained using figures. 1 is the cassette insertion slot, 2 is the eject button, 4a and 4b are FF/REW respectively.
The button 5 is a light emitting diode that indicates that the eject operation is in progress. 6 is the power switch, 7
is a switch that turns on when eject button 2 is pressed and turns off when cassette 1 reaches position B from position C; 8 is a motor drive unit for eject; 9
10 is an oscillation circuit, 10 is a transistor used as a switch element, and 11 is a current limiting resistor.

Next, its operation will be explained. The power switch 6 remains on while the cassette 3 is inserted. By pressing the eject button 2, the switch 7
is turned on, the motor drive section 8 operates, and the cassette 3
While pushing up from position C to position B, the oscillation circuit 9 operates and turns the transistor 10 on and off. Along with this, the light emitting diode 5 provided close to the eject button 2 blinks, giving a warning that the eject operation is in progress.

In this case, the oscillation circuit 9 is provided to cause the light emitting diode 9 to blink, thereby making it easier to determine whether the ejection operation is in progress.If only lighting is sufficient, the oscillation circuit 9 and the transistor 10 can be omitted.

The present invention has the above-mentioned configuration, and in order to display the cassette ejection operation using a display element, it is possible to solve the problem peculiar to a type of cassette tape recorder that uses the driving force of a motor to transport the cassette, namely, the cassette ejection operation. This has the advantage of eliminating the problem of erroneously inserting another cassette during the cassette ejection operation because the operation takes a long time.

[Brief explanation of the drawing]

Fig. 1 is a diagram of the cassette attachment/detachment process of a slot-in type cassette tape recorder, Fig. 2 is a front view of a cassette tape recorder which is an embodiment of the present invention, and Fig. 3 is an electric circuit showing the display circuit of the cassette tape recorder. It is a diagram. 1...Cassette insertion slot, 2...Eject button,
3...cassette, 5...light emitting diode, 7...
Switch, 8... Motor drive unit, 9... Oscillation circuit, 10... Transistor, 11... Resistor.

Claims (1)

[Scope of utility model registration request] A cassette transport mechanism that transports the cassette horizontally and vertically, a switch that closes in response to the operation of an eject button, and when this switch is closed, it operates to drive the cassette transport mechanism and eject the cassette. A cassette tape recorder comprising a motor drive section and a display element control circuit for blinking a display element during a cassette ejection operation by the motor drive section when the switch is closed.