JPS6346896B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a cassette tape magazine ejecting device, and its purpose is to simultaneously remove a cassette tape magazine mounted on a deck main body of a magnetic recording/reproducing device, and simultaneously remove a cassette tape magazine from the deck main body. An object of the present invention is to provide a device that can release the tape from the capstan shaft of a cassette tape magazine and prevent damage to the tape.

Conventionally, a cassette tape magazine can be removed from the main body of a deck unit of a magnetic recording/reproducing device using a manual method or a method using an electric motor, but in both methods, the cassette tape magazine is removed from the main body of a deck unit of a magnetic recording/reproducing device. At this time, the deck section of the magnetic recording/reproducing device and the cassette tape magazine remain in a stopped state. If the tape in the cassette tape magazine is charged when the cassette tape magazine is installed in the deck unit of the magnetic recording/reproducing device and is in a stopped state, and the surface of the capstan shaft of the deck unit of the magnetic recording/reproducing device is dirty,
A phenomenon occurs where the tape in the cassette tape magazine sticks to the capstan shaft. If the cassette tape magazine is removed from the magnetic recording/reproducing device in this state of adhesion, the tape may be pulled out from the capstan shaft through hole of the cassette tape magazine due to adhesion to the capstan shaft, resulting in damage to the tape. .

The present invention aims to provide a device capable of preventing the occurrence of the above-mentioned phenomenon and preventing damage to the tape. The configuration will be explained below based on the drawings shown as one embodiment.

1 is a cassette tape magazine held in a cassette holder 2; 3 is a substrate; 4 is a bearing supporting a capstan shaft 5; 6 is a take-up reel supported on the substrate 3 by a shaft 6a; 7 is a shaft 7a. A supply reel supported on the substrate 3; 8 a motor provided on the lower surface of the substrate 3; 9 a reel motor pulley that transmits the rotational force of the motor 8 to the take-up reel 6 and the supply reel 7 via a rolling contact roller 10; It is.

Figure 1 shows a state in which the cassette tape magazine 1 is attached to the main body of the deck section of the magnetic recording/reproducing device (the first
state), and at this time, the deck body is in the stop mode. Next, FIG. 2 shows a state (second state) in which the cassette tape magazine 1 is detached from the main body of the deck section of the magnetic recording/reproducing apparatus. The cassette holder 2 can set the cassette tape magazine 1 in a first state or a second state by manual or electric means (not shown). FIG. 4 is a reel motor drive circuit diagram, where 11 is a switch, 12 is a pulse generation circuit that generates or stops pulses by turning on and off the switch 11, 13 is a transistor that is switched by the pulse, and 14 and 15 are resistors. . When the cassette tape magazine 1 shifts from the first state to the second state, the switch 11 becomes energized and the pulse generating circuit 12 operates to conduct the transistor 13 and rotate the reel motor 8 by the width of the pulse. I can do it. The rotation of the reel motor 8 causes the reel motor pulley 9 to rotate, and a rolling contact mechanism (not shown) rotates the rolling contact roller 10.
rotates to rotate the take-up reel 6 or the supply reel 7, and the tape 16 of the cassette tape magazine 1 is wound onto the take-up side or the supply side. As a result, the tape 16 of the cassette tape magazine 1 is charged as shown in FIG.
At the same time as the adhesion between the tape 16 and the capstan shaft 5 due to dirt on the capstan shaft 5 is released, the cassette tape magazine 1 shifts to the second state.
In the above embodiment, the reels were rotated only in one direction, but
As shown in FIG. 6, the supply reel 7 is driven by a supply reel drive motor 17 having a supply reel side pulley 17a by a supply reel belt 18, and the take-up reel 6 is driven by a take-up reel belt 19 by a take-up reel side pulley 19a. The take-up reel and the supply reel may be driven by a take-up reel drive motor 19 having a take-up reel and a supply reel rotated in opposite directions so as to tension the tape and eliminate slack.

Since the present invention adopts the above configuration, the first
Since the adhesion between the tape of the cassette tape magazine and the capstan shaft can be released at the time of transition from the state to the second state, damage to the tape of the cassette tape magazine can be prevented, which is highly effective.

[Brief explanation of drawings]

FIG. 1 is a side view of a magnetic recording/reproducing apparatus equipped with the device according to the present invention in which a cassette tape magazine is installed, FIG. 2 is a side view of the same in a detached state, and
The figure is a front view of the main body of the deck section of a magnetic recording/reproducing device equipped with the device of the present invention, FIG. 4 is a reel motor drive circuit diagram in the device of the present invention, and FIG. FIG. 6 is an explanatory diagram showing another embodiment of the present invention. DESCRIPTION OF SYMBOLS 1... Cassette tape magazine, 2... Cassette holder, 5... Capstan shaft, 6... Take-up reel, 7... Supply reel, 8... Reel motor, 9... Reel motor pulley, 10...
...Rotating roller, 11...Switch, 12...Pulse generating circuit, 13...Transistor, 16...Tape.

Claims (1)

[Claims] 1. During an operation in which a cassette tape magazine, which is attached to the magnetic recording and reproducing apparatus deck unit main body and is in a stopped state, is transferred to the state where it is attached to the magnetic recording and reproducing apparatus and detached from the magnetic recording and reproducing apparatus deck unit main body. By providing a switch that is turned on and off, and connecting the switch and the reel motor through a circuit that operates in accordance with the on and off state of the switch, magnetic recording and reproduction can be performed when the cassette tape magazine is moved from the loaded state to the detached state. A cassette tape magazine ejecting device characterized in that when the reel of the main body of the device deck section is temporarily rotated, the reel section of the cassette tape magazine is also rotated at the same time to eliminate slack in the tape.