JP2555017Y2 - Tape recorder - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a tape recorder which can automatically display a cassette tape mounting surface when a cassette tape is mounted on the tape recorder.

[Outline of the invention]

The tape recorder of the present invention displays the A side or the B side of the small cassette tape mounted on the tape recorder or the like by means of a set tape rotation display means, for example, by an electronic counter, and operates the tape mounting or play button. The reproduction surface can be understood when the user performs the operation.

[Conventional technology]

Cassette tapes in which magnetic tapes are accommodated in cassettes are widely used as compact tapes and micro tapes, and most of them have the cassette tape mounting surface displayed on the A side or the B side, and record different music sources. .

Therefore, when such a cassette tape is mounted on the tape recorder, the A side and the B side are checked so that a desired music piece can be reproduced.

However, once the cassette tape is mounted in the tape recorder, the mounting surface of the cassette tape cannot be confirmed depending on the model.

Therefore, in order to detect the front surface or the back surface of the attached cassette tape, for example, as shown in FIG. 4, screws 10d-10g made of iron or iron alloy exposed only on one surface of the cassette tape 10 are magnetically applied. And a mounting surface detecting device for detecting the A surface or the B surface of the cassette tape.

(Japanese Utility Model Application Laid-Open No. 57-61691) Also, as previously proposed by the present applicant, a hole for a tightening screw formed on only one surface of the cassette tape 10 is provided.
Provide a small switch means to enter 10C on the mechanical base,
In some cases, the switch means detects the side A or the side B of the loaded cassette tape 10 by detecting the hole 10C.

[Problems to be solved by the invention]

However, the cassette tape surface detection mechanism as described above can be applied particularly to a small-sized tape recorder. However, since a means for displaying a cassette tape mounting surface is separately required, the tape recorder is further miniaturized. There was a problem that the display was difficult to understand.

In addition, a light emitting device must be provided on the tape recorder for display, and characters must be inserted into the light emitting device. This makes it difficult to reduce the size.

[Means for solving the problem]

The present invention has been made in view of such problems, and has a means for detecting a mounting surface of a cassette tape mounted on a tape recorder, and a character indicating the mounting surface of the cassette tape by a detection signal obtained from the detecting means. Means for indicating the rotation of the cassette tape.
For example, the reel counter can display the side A or the side B of the cassette tape. This display is made temporarily, for example, when a cassette tape is mounted or when the cassette tape is set to the reproduction state.

[Action]

Since the electronically displayed reel counter is also used as a display means for the cassette tape mounting surface, an easy-to-understand display can be performed even when the tape recorder is downsized.

〔Example〕

FIG. 1 is a perspective view showing one embodiment of a tape recorder to which the cassette tape mounting surface display device of the present invention is applied.
Is the main unit of the tape recorder (digital recording / playback device),
Reference numeral 2 denotes an opening / closing lid for mounting a cassette tape, 3 denotes a deck portion of the cassette tape, and 4 denotes an operation button portion.

Reference numeral 5 denotes a reel counter that indicates the rotation status of the cassette tape. The reel counter 5 counts a clock obtained from an FG signal formed on a reel base of a cassette tape (not shown) to determine the remaining amount of the tape,
It is constituted by means for electronically displaying the running time and the like on a seven-segment liquid crystal display.

In the embodiment of the present invention, the rotating drum 6 is provided in the main body 1.
Is built in, and audio data can be digitally recorded and reproduced by a rotary head provided on the rotary drum 6.

FIG. 2 shows an outline of the cassette tape 10 for the above-mentioned tape recorder.
Is wound around two reels 11a and 11b.

Reference numeral 13 denotes an opening / closing door provided on the front surface of the cassette tape 10. The opening / closing door 13 is opened when the cassette tape 10 is mounted on the main body 1 as seen in a video tape cassette.

Reference numerals 14 and 15 indicate detection holes for identification formed to determine the type of the cassette tape 10, and the tape reproduction time and the recording format can be read depending on the presence or absence of the detection holes and their positions. ing.

Further, a part of the detection hole 14 is detected for identifying the mounting surface (front and back) of the cassette tape 10, and for example, by detecting the position of the detection hole, the cassette tape is detected.
It can be determined whether the reproduction surface 10 is the A surface or the B surface.

FIG. 3 shows an example of detecting the detection holes of the cassette tape 10. When the cassette tape 10 is mounted so that the A side of the cassette tape 10 is reproduced, the holes formed on the bottom surface thereof are formed.
The detection switch 21 detects 14A, and a signal indicating that the surface A is mounted is input to the control unit 22 of the tape recorder.

The control unit 22 outputs an overall control signal of the tape recorder. During the operation of the tape recorder, the reel counter 5 calculates the remaining amount of the tape, the playing time, and the like. It is supplied to a reel counter (display) 5 as character information.

Further, in the case of the present invention, the information inputted to the liquid crystal display is switched to an identification signal indicating the mounting surface of the cassette tape 10.

For example, when the cassette tape 10 is mounted on the main body 1, first, the mounting surface of the cassette tape 10 is detected by the detection switch 21. When the detection signal indicates that the side A is to be reproduced, the reel counter The display surface of No. 5 changes to a display of Sd-a as shown in, for example, 5A.

Similarly, when the back surface of the cassette tape 10 is mounted, the display of the reel counter 5 is changed to Sd-b as shown in 5B, for example.
Changes to the display. And play button or FF / REW
When the button is operated, the display returns to the normal reel counter display. The reel counter 5 is not limited to a liquid crystal (LCD), but may be a light emitting diode. Display may be performed.

The display timing of the cassette tape can be adjusted using the operation buttons (PB,
(FF / REW) may be temporarily performed when the button is pressed.

The detection of the mounting surface of the cassette tape is not limited to the detection hole, but may be performed magnetically or optically.

[Effect of the invention]

As described above, the tape recorder of the present invention uses the reel counter, which is indispensable in the tape recorder, to display the A side or the B side, so that the cassette tape and the tape recorder are reduced in size, and the main body is formed. Even when the size is further reduced, there is an advantage that the display of the mounting surface can be easily understood, and since the display means is also used as the reel counter, the tape recorder becomes compact and the size can be further reduced. is there.

[Brief description of the drawings]

FIG. 1 is a schematic view of a tape recorder showing one embodiment of the present invention, FIG. 2 is a perspective view showing an example of a cassette tape, and FIG.
The figure is a schematic diagram for detecting the front and back of the cassette tape,
FIG. 4 is a perspective view of a conventional cassette tape. In the figure, 1 is a main body, 2 is an opening / closing lid, 5 is a reel counter, 10
Indicates a cassette tape, 14 and 15 indicate detection holes, 21 indicates a detection switch, and 22 indicates a control unit.

Claims (1)

(57) [Scope of request for utility model registration] A detecting means for detecting a surface on which the cassette tape is mounted, a detection signal from the detecting means being supplied, and at least a tape detection signal based on a rotation detection signal detecting rotation of the reel base. A control means for calculating the remaining amount and the running time and performing operation control based on inputs from a plurality of operation buttons, and a display means for switching a display state by a control signal from the control means, wherein the control means includes: Based on the detection signal from the detection means, it is displayed whether the surface of the attached cassette tape is the front side or the back side, and based on the input from the operation button, the display means detects the detection from the detection means. A display based on a signal and a display of a calculation result based on a rotation detection signal detecting rotation of the reel base. Over da.