JPS5935843Y2 - Telephone with radio - Google Patents

Description

[Detailed description of the invention] This invention relates to a tape recorder with a radio that allows the speaker unit to be docked, and in particular to a tape recorder with a radio that allows the speaker unit to be docked with the speaker unit facing the surface whenever the radio or tape recorder is used. It is related to.

These days, there are many tape recorders with radio functions on the market.There is also a tendency for such tape recorders to become super heavy-duty, and for this reason, a speaker unit is installed separately and placed on the main body to make it more convenient to carry. There is also a model that can be docked, and one that can be used exclusively for earphones when carried, and a speaker unit that can be docked when necessary.

However, in conventional tape recorders with a radio, the docking direction of the speaker unit is fixed, so if one side of the main body case is used for the tape recorder and the other side for the radio, the speaker unit surface is on the cheap recorder side. If you listen to the radio with your face facing forward, the speaker unit will face the opposite side, making it difficult to hear the radio broadcast, and even if you can hear it, the output and directivity will be reduced, which is not desirable.

This idea was made to eliminate the above drawbacks.
To provide a tape recorder with a radio in which a speaker unit can always be docked with a speaker unit facing a surface E in accordance with the use of the radio or tape recorder.

An embodiment of this invention will be described below with reference to FIG.

In FIG. 1, 1 is a tape recorder main body, and this main body 1 has built-in tape recorder and radio functions.

This tape recorder main body 1 has a cassette chamber 2 and a group of operation switches 3 for operating the tape recorder on one side shown in FIG. 1A to form a tape recorder section, and the other side shown in FIG. A dial scale 4 and a dial knob 5 are arranged to form a radio section.

An earphone jack (not shown) is provided on one side of the tape recorder main body 1.

By connecting an earphone 6 to this jack, the player can selectively listen to the playback sound from the tape recorder or the radio broadcast.

Furthermore, a dovetail groove 1a is formed on the other side of the tape recorder body 1 along the width direction of the tape recorder body 1.

A plurality of (three in the illustrated example) connector terminals 7a, 7b7c are arranged at equal intervals on the bottom surface of this dovetail groove 1a.

Are these connector terminals? a, 7b, and 7c are connected to the output terminals of a preamplifier (not shown) for both tape recorder and radio functions in the tape recorder main body 1, and among these terminals 7a is placed in the center of the dovetail groove 1a and is used for grounding. A terminal 7b adjacent to this terminal 7a is used as an output signal terminal, and a terminal 7c adjacent to this terminal 7c is used as a power supply terminal.

On the other hand, 8 shown in FIG. 1C is a speaker unit, and this unit 8 includes a speaker body 9 and an output amplifier (not shown).

This speaker unit 8 also has the above-mentioned dovetail groove 1 on one side.
A protrusion 8a corresponding to the dovetail groove 1a is formed, and the protrusion 8a can be inserted into one end of the dovetail groove 1a and docked to the tape recorder main body 1 by sliding operation.

The connector terminals 7a, 7 are placed along the protrusion 8a.
A plurality of (five in the illustrated example) connector terminals 9a to 9e corresponding to terminals b and 7c are provided.

These connector terminals 9a to 9e are connected to the input terminal of the output amplifier in the speaker unit 8. Among these, the terminal 9a is arranged in the center of the protrusion 1a and serves as a grounding terminal corresponding to the terminal γa. Terminals 9b and 9d adjacent to terminal 9a are output signal terminals corresponding to the terminal 7bl, and terminals 9c and 9e adjacent thereto are power supply terminals corresponding to terminal 7c.

In this case, the terminals 9b and 9d and 9c and 9e are commonly connected within the unit 8, respectively.

In the figure, numeral 10 is a volume that serves both as the main body of the tape recorder and a radio, and numeral 11 is a lid of the battery compartment.

Next, the operation of the tape recorder with radio constructed as above will be described.

First, when using it as a tape recorder, align the surface of the speaker unit 8 with the surface on which the tape recorder portion of the tape recorder main body 1 is formed, and in this state insert the protrusion 8a of the unit 8 into one end of the dovetail groove 1a of the main body 1. It is docked to the tape recorder main body 1 by a sliding operation (FIG. 2a).

Then, connector terminals 7a and 9a are connected between main body 1 and unit 8.
, 7b and 9b, and 7c and 9c, and the preamplifier in the main body 1 is electrically connected to the output amplifier in the unit 8.

As a result, tape recorder output is generated from the speaker via the output amplifier.

Next, when using it as a radio, tape recorder body 1
Align the surface of the speaker unit 8 with the surface on which the radio part is formed, and in this state, insert the protruding part 8a of the unit 8 into one end of the dovetail groove 1a of the main body 1 and slide it to dock it in the tape recorder main body 1. (Figure 2b)
.

Then, connector terminal 7 is connected between main unit 1 and unit 8.
Connected between a and 9a, 7b and 9d, and 7c and 9e.

However, in this case, since the connector terminals 9d and 9e are commonly connected to 9c, the preamplifier in the main unit 1 is electrically connected to the output amplifier in the unit 8 under exactly the same conditions as described above. As a result, radio output is generated from the speaker via the output amplifier.

Therefore, with this configuration, when using a radio or tape recorder, the speaker unit can always be docked with the speaker unit facing the surface. This eliminates the inconvenience that makes it difficult to hear the sound from the speaker, and the output and directivity can be improved accordingly.

It should be noted that this invention is not limited to the above-mentioned embodiments, but can be implemented with appropriate modifications without changing the gist.

For example, in the above-described embodiment, the tape recorder main body and the speaker unit are docked from the dovetail groove and the corresponding protrusion E, but other means may of course be used.

As described above, according to the present invention, it is possible to provide a tape recorder with a radio that allows the speaker unit to be docked with the speaker unit always facing the front when the radio or tape recorder is used.

[Brief Description of the Drawings] Figures 1a, b, and c are perspective views showing one embodiment of this invention;
FIGS. 2a and 2b are schematic configuration diagrams for explaining how the embodiment is used. 1... Tape recorder body, 1a...
Dovetail groove, 2...Cassette chamber, 3...Switch group, 4...Dial scale, 5...
・Dial knob, 6...Dial, 7a to 7c
, 9a-9c... Connector terminal, 8...
...Speaker unit, 10...Volume, 1
1... Lid.

Claims (1)

[Scope of utility model registration request] A tape recorder main body has a tape recorder section formed on one side and a radio section on the other side, and a speaker unit dockable to this main body, and the surface of the speaker unit is the surface of the tape recorder section of the tape recorder main body or the radio section. A tape recorder with a radio, characterized in that only the surface 1 of the part can be aligned and docked, and can be electrically connected to the tape recorder main body via a connector terminal.