JPH0536631U - Cassette tape recorder - Google Patents

Abstract

(57) [Abstract] [Purpose] The cassette tape is automatically ejected when the forward / reverse playback of the cassette tape recorder is completed. [Structure] An automatic eject mode provided in a cassette tape recorder, a setting means for operating the operation keys to set the automatic eject mode, a tape end detection during forward operation and a tape end detection during reverse operation Storage means for storing the two tape end detections and eject operation means of the sub motor controller mechanism controlled by the two tape end detections are provided.
The cassette tape is automatically ejected by detecting the tape end twice.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an eject mechanism of a cassette tape recorder, and more particularly to a cassette tape recorder suitable for automatically ejecting a cassette tape during forward / reverse reproduction.

[0002]

[Prior art]

 Conventionally, many cassette tape recorders, particularly vehicle-mounted cassette tape recorders, have been provided with a panel front view shown in FIG. In the figure, 10 is a panel of a cassette tape recorder, and various operation keys for operating the cassette tape recorder are arranged on this panel 10.

Reference numeral 11 denotes an eject key of the cassette tape, and by manually operating the eject key 11, the cassette tape mounted on the cassette tape recorder can be taken out arbitrarily.

[0004]

[Problems to be solved by the device]

 However, in the conventional cassette tape recorder described above, when the cassette tape is taken out, the eject key 11 of the panel 10 is manually operated to take out the cassette tape. For this reason, in a cassette tape recorder having a forward / reverse automatic switching playback mechanism, unless the eject key 11 is manually operated, the same cassette tape continues to play forever, or the same cassette tape remains loaded in the cassette tape recorder. Was becoming.

Particularly, in the case of an on-vehicle cassette tape recorder, it is dangerous to operate the eject key 11 on the panel 10 while driving, and the eject key 11 is generally operated while the vehicle is stopped or parked. It had the drawback of having to.

The present invention has been made in view of the above points, and an object thereof is to solve the drawbacks of the conventional example, and to automatically eject the cassette tape when the forward / reverse reproduction of the cassette tape recorder is completed. There is a cassette tape recorder that can be used.

[0007]

[Means for Solving the Problems]

 The cassette tape recorder of the present invention operates according to the key data from the operation key, detects the tape end and has a forward / reverse automatic switching reproduction function. In the cassette tape recorder, the automatic eject mode provided in the cassette tape recorder is used. And a setting means for operating the operation keys to set the automatic eject mode, and detecting the tape end two times, that is, the tape end detection in the forward operation and the tape end detection in the reverse operation. A storage means for storing and an ejecting operation means of the sub-motor controller mechanism controlled by the two tape end detections are provided, and the cassette tape is automatically ejected by the two tape end detections. It was done.

[0008]

[Action]

 According to this invention, the cassette tape recorder, which operates by key data from the operation key, detects the tape end and has a forward / reverse automatic switching reproduction function, is provided with an automatic eject mode, and the operation key is operated. Then, the cassette tape recorder can be set to the above automatic eject mode.

When the cassette tape recorder is set to the above-mentioned automatic eject mode, the cassette tape recorder first detects the tape end during the forward operation (when playing the A side), and the detected data is detected by the microcomputer (hereinafter , And is stored in the memory (RAM) of the microcomputer after judging that it is the first tape end detection.

On the other hand, the cassette tape recorder performs an auto-reverse operation to continue the B-side reproduction of the cassette tape, detects the tape end at the time of this reverse reproduction operation, and supplies this detection data to the microcomputer. Counts the tape end detection for the second time and stores it in memory.

When the cassette tape recorder detects two tape ends of forward / reverse reproduction, the microcomputer controls the sub motor / controller mechanism of the mechanical section 4 of the cassette tape recorder by the detection data of these two times. The eject operation of the tape can be performed.

As described above, the cassette tape recorder can automatically eject and take out the cassette tape by performing the automatic eject operation by detecting the tape end twice. That is, even when the vehicle is in operation, when the cassette tape recorder finishes the forward / reverse automatic reproduction, the cassette tape automatically ejects and can take out the tape that has been listened to. You can also wear it to listen.

[0013]

【Example】

 An embodiment of the cassette tape recorder according to the present invention will be described with reference to FIGS. FIG. 1 is a block diagram of a main part, and FIG. 2 is a flow chart for explaining the operation.

In the figure, reference numeral 1 is an operation key for operating the cassette tape recorder, and the key data from the operation key 1 is supplied to the microcomputer 2 to control the functions of the respective parts of the cassette tape recorder.

As is well known, the microcomputer 2 is basically composed of a CPU 2c, a clock 2b, a ROM 2d, a RAM 2e, an input port 2a and an output port 2f. A program for controlling the CPU 2c is written in the ROM 2d, According to this program, the CPU2c fetches the required external data from the input port 2a, or exchanges data with the RAM2d for arithmetic processing, and outputs the processed data as necessary to the output port 2e. Output more.

Reference numeral 3 is a sub-motor controller, and this sub-motor controller 3 can control the loading mechanism and the eject mechanism of the mechanical section 4 of the cassette tape recorder by the control data from the microcomputer 2.

The operation of the cassette tape recorder thus configured will be described with reference to the flowchart of FIG.

In order to set the automatic eject mode provided in the cassette tape recorder, when the specified mode setting key of the operation key 1 is operated, the key data from the operation key 1 is supplied to the microcomputer 2, and the microcomputer 2 It is possible to judge the key operation of operation key 1 (step S1) and set the cassette tape recorder to the automatic eject mode (step S2).

As described above, when the cassette tape recorder is set to the automatic eject mode, the cassette tape recorder controls the sub motor controller 3 so that the mechanical section 4 operates the cassette tape loaded in the cassette tape recorder in the forward direction. Tape A side reproduction can be performed.

Further, the mechanical section 4 of the cassette tape recorder is in a state of detecting the tape end of the tape A side reproduction, and detects the tape end of the forward side A side reproduction tape and detects the first tape end ( As step S3), the RAM 2e of the microcomputer 2 is counted and stored (step S4).

On the other hand, the mechanical section 4 of the cassette tape recorder switches the forward / reverse mechanism to automatically set the cassette tape recorder to the reverse operation mode (step S5) and perform tape B side reproduction. Then, the mechanical section 4 becomes in a state of detecting the tape end of the tape B side reproduction, and detects the tape end of the reverse operation B side reproduction tape, and the microcomputer 2 performs the second tape end detection (step S6). It is counted and stored in RAN2e.

In this way, when the two tape end detections by the forward / reverse operation are counted, the microcomputer 2 controls the sub motor controller 3 to drive the eject mechanism of the mechanical section 4 of the cassette tape recorder to drive the cassette tape. Can be ejected (step S7). That is, when the forward / reverse automatic switching reproduction is finished, the eject mechanism automatically operates and the cassette tape can be taken out.

In this way, when both sides of the cassette tape have been reproduced, the eject mechanism automatically operates and the cassette tape is ejected from the cassette tape recorder, so that a new cassette tape can be mounted.

The case where the cassette tape is attached to the cassette tape recorder and then the automatic eject mode is set and operated has been described above. However, after the cassette tape is inserted, the cassette tape is forced to operate for an arbitrary time, for example, about 10 seconds. By providing a prohibition state in which the setting of the automatic eject mode is prohibited, it is possible to prevent misreading (malfunction) of the count number of the tape end detection.

[0025]

[Effect of the device]

 As described above, the cassette tape recorder according to the present invention can automatically take out the cassette tape by operating the eject mechanism automatically at the time when the forward / reverse automatic switching reproduction is completed. Moreover, there is an effect that the troublesomeness of manually operating the eject key at the same time as the end of the reproduction becomes unnecessary.

In particular, the vehicle-mounted cassette tape recorder eliminates the need for manual eject operation during driving, and has the effect of eliminating the danger of driving.

Moreover, it has excellent features such as a simple structure and easy implementation because it can be constructed at low cost.

[Brief description of drawings]

FIG. 1 is a block diagram showing an embodiment of a cassette tape recorder of the present invention.

FIG. 2 is a flowchart explaining the operation of the present invention.

FIG. 3 is a front view showing a panel surface of a conventional example.

[Explanation of symbols]

 1 Operation Key 2 Microcomputer 3 Sub Motor Controller 4 Mechanical Section of Cassette Tape Recorder

Claims (1)

[Scope of utility model registration request] 1. A cassette tape recorder which operates by key data from an operation key, detects a tape end and has a forward / reverse automatic switching reproduction function, and an automatic eject mode provided in the cassette tape recorder and an operation key. And a storage means for storing the two tape end detections, that is, the tape end detection in the forward operation and the tape end detection in the reverse operation. And ejecting means of the sub-motor controller mechanism controlled by the two tape end detections, and the cassette tape is automatically ejected by the two tape end detections. Cassette tape recorder.