JPH036680B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention relates to a connecting device for a radio cassette equipped with a separable speaker box.

[Background of the invention]

FIGS. 1 and 2 show a perspective view of a conventional radio cassette having a separable speaker box assembled together and a perspective view of the radio cassette separated.

In the figure, 1 is the main body, 2 is a speaker box, and when combined together, there will be two speaker boxes on both sides of the main body 1, as shown in FIG.
is placed. On the other hand, they can be separated as shown in FIG. Reference numeral 3 in FIG. 2 is a shaft provided on the side surface of the main body 1, and 4 is a terminal provided on the side surface of the speaker box 2 at a position corresponding to the shaft 3.

The terminal 4 is provided with a hole into which the shaft 3 can be inserted. Therefore, when the main body 1 and the speaker box 2 are assembled as shown in FIG. 1, the shaft 3 is inserted into the hole of the terminal 4, and the main body 1 and the speaker box 2 are held together so that they do not shake. and electrically connected. Also, terminal 4
Since the lead wire from the speaker is connected to the main body 1, the audio signal from the main body 1 is transmitted to the speaker and output as sound to the outside world.

3 and 4 are front views showing the process of coupling the shaft 3 and the terminal 4, and FIGS. 5 and 6 respectively show the A- A cross-sectional view taken along line A and line B-B is shown.

When connecting the shaft 3 to the terminal 4, first insert the head of the shaft 3 into the larger hole 4a of the terminal 4, as shown in FIG. Then, as shown in FIG. 4, the shaft 3 is connected to the terminal 4.
slide it into the smaller hole 4b.

This prevents the shaft 3 from coming out of the terminal 4 and also connects it electrically.

Electrical connections will become clearer with reference to FIGS. 5 and 6. In both figures, 5
6 is a lead wire connected to the shaft 3, 6 is an elastic contact, and 7 is a lead wire electrically connected to the contact 6. Note that codes other than these are the second
- Shows the same thing as Figure 4.

As shown in FIG. 6, when the shaft 3 is first inserted into the larger hole 4a of the terminal 4 in the dashed line position and then slid towards the smaller hole 4b, the shaft 3 is moved to the solid line position. I come to.
At this time, the head of the shaft 3 is placed in the recess of the contact 6,
The elastic force of the contact point 6 presses the contact point 6 into contact. FIG. 5 is a sectional view of the state at this time viewed from another angle.

As described above, when the main body 1 and the speaker box 2 are used integrally, the shaft 3 and the terminal 4 are engaged to establish an electrical connection. However, if these are separated, electrical connection cannot be made through the shaft 3 and the terminal 4, so another means is provided.

This will be explained with reference to FIG. FIG. 7 is a perspective view of the main body 1 and the speaker box 2 seen from the back side.

A lead wire 9 is provided on the back side of the speaker box 2 and has one end electrically connected to the contact 6 and a plug 8 attached to the other end. On the other hand, a jack 10 electrically connected to the shaft 33 is provided on the back side of the main body 1.
When using the main unit 1 and speaker box 2 apart, connect the lead wire 9 from the speaker box 2.
Take out the plug 8 and insert it into the jack 10 on the main body side.
Insert. In this way, the main body 1 and the speaker box 2 are electrically connected.

However, in the conventional device described above,
In the electrical connection, the shaft 3 and terminal 4 overlap,
and plug 8, lead wire 9 and jack 1
0 is required, the number of parts increases, and the cost increases. Furthermore, the structural connection method was not easy but difficult. In addition, there was a problem with the reliability of the electrical connection between the shaft and the terminal. Furthermore, electrical performance may deteriorate depending on the lead wire wiring method.
The work was also difficult.

[Purpose of the invention]

SUMMARY OF THE INVENTION An object of the present invention is to eliminate the drawbacks of the prior art described above and to provide a speaker box connection device that is inexpensive and easy to operate.

[Summary of the invention]

A feature of the present invention is that, in a connecting device for electrically connecting a speaker box and a radio cassette main body, a plug attached to one end of a lead wire electrically connected to a speaker is slidably attached to the speaker box. A cord clamper having an integrally molded elastic body attached thereto and capable of attaching and detaching the plug, and a jack provided at a position corresponding to the plug on the main body side, and integrating the main body and the speaker box. When in use, the plug is engaged with the integrally molded elastic body of the cord clamper, and when the main body and speaker box are used apart from each other, the plug is removed from the cord clamper.

[Embodiments of the invention]

The present invention will be explained below by way of examples. Details of the state in which the radio cassette 1 and the speaker box 2 are connected will be explained with reference to FIGS. 8 to 14.
FIG. 8 shows a perspective view of an embodiment according to the invention.
In the figure, 1 is the main body of a radio cassette, and 2 is a speaker box. Further, 18 is a cord clamper which shows the state after being moved in the direction of arrow C, and 16 is a cord storage lid. Furthermore, C′ is the cord clamper 18
An enlarged view is shown when the is moved. Figure 9 is the 8th
FIG. 10 shows a side view of FIG. 9; 10, 11, and 12 are cross-sectional views of FIG. 9 taken along the r-r line, the t-t line, and the u-u line, respectively. Here, 23a denotes an elastic body integrally formed with the cord clamper 18 which bends in the direction of the arrow a, and 23b denotes an elastic body integrally formed with the cord clamper 18 which bends in the direction of the arrow b.
a is the concave portion of the elastic body 23a, similarly 25
b is the recessed portion of the elastic body 23b. 27
is a knob integrally formed with the cord clamper for moving the cord clamper 18 in the direction of the arrow C, and when the knob 27 is moved fully in the direction of the arrow, the speaker jack 15 provided in the main body 1 and , a speaker plug 11 held and engaged with the speaker box 2 by a cord clamper 18.
are connected, and at the same time, the recess 29' formed in the main body 1 and the integrally molded protrusion 29 of the cord clamper are fitted, and the speaker box 2 is electrically connected and the speaker box 2 is removed from the main body 1. They are trying to prevent them from leaving.

Details of separating the radio cassette main body 1 and the speaker box 2 from the connected state are shown in FIGS.
This will be explained with reference to FIG. FIG. 14 shows the main body 1
C is a perspective view showing the speaker box 2 removed from the electrically and structurally connected state, and C is an enlarged perspective view at that time. FIG. 15 shows details of the plan view of FIG. 14, and FIG. 16 is a sectional view taken along the line w--w in FIG. 15. Now, move the cord clamper 18 of the speaker box 2 in the direction of the arrow.
C″ to cord clamper integrally molded elastic body 23a, 2
3b are moved in the directions of arrows a' and b' while being bent. At this time, the speaker jack 15 and the speaker plug 11 are separated, and at the same time, the recess 29' of the main body 1 and the protrusion 29 of the cord clamper 18 attached to the speaker box 2 are separated, and the electrical connection as well as the structural The speaker box 2 can be separated from the main body 1 by moving in the direction of the arrow d.

FIG. 17 is a perspective view of an embodiment of the present invention showing in detail the speaker cord 12 and the means for removing the speaker flag 11 from the speaker box 2. Open the cord cover 16 in the direction of arrow e and move the cord clamper 18 in the direction of arrow j. At this time, the speaker cord 12 and speaker flag 11 housed in the speaker box 2 can be removed together with the cord clamper 18. Details of attaching and detaching the cord clamper 18 and the plug 11 will be explained with reference to FIGS. 18 to 21. FIG. 18 is a perspective view showing details of the state in which the cord clamper 18 and plug 11 are attached. Figure 19 shows the cord clamper 18
FIG. 2 is a perspective view showing details of a state where the plug 11 and the plug 11 are separated. Fig. 20a is a plan view of the plug, Fig. 20b is a plan view of the cord clamper, and Fig. 20c is a plan view of the cord clamper.
Figure 20d is the left side view of Figure 0b, Figure 20d is the left side view of Figure 20b.
-V sectional view is shown. A hole 28 into which the plug 11 can be engaged is formed on one side of the cord clamper 18, and a protrusion 29 which fits into the radio cassette body.
is formed. Furthermore, the plug 11 is circumscribed and held by elastic bodies 26a and 26b integrally formed with the cord clamper 18, and is configured together with the hole 28. Thereby, the plug 11 can be attached to and detached from the hole of the cord clamper 18.

separating the main body 1 and the speaker box 2;
A perspective view showing details of making electrical connections is shown in FIG. The plug 11 removed from the cord clamper 18 is inserted into the speaker jack 15 provided on the side surface of the main body 1 for electrical connection.

As described above, according to this embodiment, electrical and structural connections between the main body and the speaker box can be made extremely easily using a single plug and jack system.

〔Effect of the invention〕

According to the present invention, the electrical connection means and the structural connection means of the conventional device in which the main body and the speaker box can be separated are independent and separate, but can be electrically and In addition to making structural connections, the structural connection parts that conventional equipment had are no longer required, and the wiring that was required for electrical connections is also no longer required, resulting in a significant cost reduction and functional convenience for customers. In addition, it improves reliability, improves serviceability, and serves as a means of marketing the product.

[Brief explanation of drawings]

Figures 1, 2 and 7 are perspective views of the appearance of a conventional radio cassette, Figures 3 and 4 are front views showing the positional relationship between the shaft and terminals, and Figures 5 and 6 are views of the shaft and terminals. 8 is a cross-sectional view showing the positional relationship of terminals, FIG. 8 is an external perspective view including a partially enlarged view of an embodiment of the present invention, and FIG. 9 is a diagram showing the positions of a speaker box, cord clamper, and plug in an embodiment of the present invention. 10 is a side view of FIG. 9, FIGS. 11 to 13 are sectional views showing the positional relationship of the speaker box, cord clamper, and plug when connected, and FIG. 14 is a side view of FIG. 9. An external perspective view showing attachment and detachment including a partially enlarged view of one embodiment, FIGS. 15 and 16 show the speaker box and cord clamper when separated,
FIG. 17 is a sectional view showing the positional relationship of the plugs, and FIG. 17 is an external perspective view showing some details of an embodiment of the present invention.
Figure 8 is a perspective view of the cord clamper and plug attached, Figure 19 is a perspective view of the cord clamper and plug separated, Figure 20a is a plan view of the plug, Figure 20
Figure b is a plan view of the cord clamper, Figure 20c is a left side view of Figure 20b, Figure 20d is a sectional view taken along the line v-v in Figure 20b, and Figure 21 is a diagram of an embodiment of the present invention. FIG. 3 is an external perspective view after separation. 1...Radio cassette body, 2...Speaker box, 11...Plug, 12...Jack, 1
8...Cord clamper.

Claims (1)

[Scope of Claims] 1. A connection device for electrically connecting a speaker box and a radio cassette body, comprising: a plug attached to one end of a lead wire electrically connected to a speaker; and a plug that is slidable on the speaker box. a cord clamper having an integrally molded elastic body attached to the cord clamper and capable of attaching and detaching the plug;
The radio cassette body is provided with a jack provided at a position corresponding to the plug, and when the radio cassette body and the speaker box are used integrally, the plug is attached to the cord clamper with an integrally molded elastic body. 2. A connecting device, wherein the plug is engaged with the cord clamper and is removed from the cord clamper when the radio cassette main body and the speaker box are used apart. 2. The connection device according to claim 1, wherein the cord clamper is slidably mounted within the speaker box and is lockable within the speaker box.