JPH0448077Y2 - - Google Patents

Description

[Detailed explanation of the idea] (Industrial application field) The present invention relates to a composite speaker.

(Prior Art) It is generally difficult to obtain a speaker with flat frequency characteristics across low to high frequencies and good electroacoustic characteristics using a single diaphragm.

For this reason, various composite speakers have been provided in the past that attempt to obtain good characteristics by integrating multiple speakers and reproducing the divided frequency bands with independent speakers. There are 2-way and 3-way types.

As is well known, a composite speaker is constructed by having a large-diameter speaker unit for bass sounds and a speaker unit for medium and/or treble sounds built therein.

One conventional example of electrical connection between each speaker unit is to simply draw out lead wires from input terminals provided on the frame side of the bass speaker unit to each speaker unit.

In some cases, a hole is made in the diaphragm of a bass speaker unit, an eyelet is put in the diaphragm, a lead wire is passed through the diaphragm, and a lead wire is soldered to the diaphragm, and the tip of the lead wire is connected to another speaker unit.

Furthermore, as shown in Utility Model Publication No. 57-37598, three holes are drilled for each lead wire in the diaphragm of the bass speaker unit, and the lead wires are inserted through the holes to connect each speaker unit as appropriate. There is.

(Problem to be solved by the invention) However, in the first conventional example, there is a problem that the connection work is complicated.

In addition, in the second conventional example, since the lead wire passes through the diaphragm at only one location, it is not possible to drill holes at common and suitable locations for connection between speaker units. Problems include the need for parts such as eyelets and the effort required to attach them, and the risk of wire breakage or half-breakage in the soldered portion of the eyelet in the case of high-input speakers.

Furthermore, in the third conventional example, there are usually two lead wires, so the number of holes is large overall.
There is a problem that drilling the holes and inserting the lead wires are complicated.

(Means for Solving the Problems) The present invention provides a bass diaphragm with a hole through which a lead wire for connection to another speaker unit is inserted, wherein the diaphragm is provided with a diaphragm bonded to the diaphragm. A first hole is bored at a position suitable for electrical connection between the voice coil and the input terminal, and a connection lead wire is inserted into the first hole from the back side to the front side of the diaphragm to make this connection. A retaining part is formed on the lead wire to prevent this part from coming off, and the first lead wire is folded back to prevent the part from coming off.
A second hole is inserted through the diaphragm, and the connection lead wire on the rear side is further drilled in the diaphragm at a position suitable for connection to the other speaker unit.
The above object is achieved by inserting the speaker unit into the front side of the diaphragm through the hole to establish electrical connection between the respective speaker units.

(Function) In the present invention, as described above, only two holes are required to be drilled in the diaphragm, so it is easy to drill the holes.

In addition, in this case, the holes were located at positions suitable for electrical connection between the speaker units.
It is said to be easy to connect.

Furthermore, since eyelets are not required and the lead wires are inserted through two holes, the insertion work is extremely easy.

(Example) The present invention will be explained below with reference to the drawings.

Figures 1 to 3 show an embodiment of the composite speaker according to the present invention. In the present invention, two holes are drilled for one lead wire in the diaphragm of the bass speaker unit. However, the present invention is characterized in that each speaker unit is electrically connected to each other by inserting lead wires through these holes, and other configurations are substantially the same as the conventional example. That is, in these figures, 1 is a bass speaker unit with a well-known configuration, and 2 is another speaker unit for treble or medium sounds provided in an appropriate space of the bass speaker unit 1 . In the example, a two-way system is used, but there is no problem in creating a three-way system as well known by adding another speaker unit (not shown).

However, in the present invention, the lead wire 5 connected to the input terminal 4 provided on the frame 3 side
is the diaphragm 6 through the first hole 6a formed in the bass diaphragm 6 constituting the bass speaker unit 1 .
The lead wire 5 is pulled out from the back side to the front side, and after the lead wire 5 is fixed to the diaphragm 6 by forming a retaining part made of, for example, a knot 5a, it returns to the back side of the diaphragm 6 through the first hole 6a. The lead wire 5 is folded back and pulled out, and then pulled out to the front side through the second hole 6b, and the tip of the lead wire 5 is connected to a relay terminal 7 provided at an appropriate location on the front side of the diaphragm 6. It is configured. In this case, the first hole 6a
is bored at a position suitable for connection to the coil end of the voice coil 8 coupled to the bass diaphragm 6, and the other end of the voice coil lead wire 5' is connected to the coil end. It is connected to the knot 5a through the front side of the diaphragm 6. In addition, the second hole 6
b is drilled at a position suitable for connection to a relay terminal 7 provided at a position suitable for connection to another speaker unit 2 , and the tip of the lead wire 5 reaches the relay terminal 7, from which it can be connected to other speakers. The connection to the speaker unit 2 is made.

Although the processing of the negative pole lead wire 5 has been explained above, the processing of the other pole lead wires (not shown) is substantially the same, and in the present invention, the processing for the bass diaphragm is In the end, there are four holes in total.

FIG. 4 shows another embodiment of the invention. In this embodiment, in order to prevent the lead wire 5 drawn out to the front through the first hole 6a formed in the diaphragm 6 from coming off, the lead wire 5 is bent back into an inverted U shape, and a fixing rod is attached to the center of the lead wire 5. 5a' is inserted to form a retaining portion. The other configurations are the same as those of the previous embodiment.

FIG. 5 shows still another embodiment of the present invention, in which a fixing metal fitting 5a'' such as a washer as shown in FIG. The lead wire 5 pulled out from the diaphragm 6 is hooked to prevent it from coming off, and then the lead wire 5 is folded back to the back side of the diaphragm 6, inserted into the first hole, and pulled out.

Since the retaining portions in the embodiments shown in FIGS. 1 to 3 are made of knots, no other members are required, which can prevent an increase in cost. On the other hand, although the embodiment shown in FIGS. 4 and 5 requires a fixing rod 5a' and a fixing metal fitting 5a'', it is easier to prevent the lead wire 5 from coming off than by forming a knot, and is suitable for mass production. There are suitable advantages.

As described above, according to the present invention, in a device in which a bass diaphragm is provided with a hole for passing a lead wire for connection to another speaker unit, the diaphragm is provided with a voice coil connected to the diaphragm and an input terminal. A first hole is drilled at a position suitable for electrical connection with the terminal, a connecting lead wire is inserted into the first hole from the back side to the front side of the diaphragm, and the connecting lead wire is inserted into the first hole. A retaining part is formed to prevent this part from coming off, and the lead wire is folded back and inserted through the first hole, and the connection lead wire on the back side is further connected to a wire suitable for connection to the other speaker unit. Since the speaker unit is inserted into the front side of the diaphragm through a second hole drilled in the diaphragm at a certain position to establish an electrical connection between each speaker unit, it is possible to connect each speaker unit from one location to each speaker unit. The connection work is easier than connecting lead wires.

In addition, compared to a method in which a hole is drilled at one location on the bass diaphragm and soldered using an eyelet, the holes are drilled at positions suitable for electrical connection between each speaker unit. It is easy to connect and is advantageous for high-input speakers. In addition, since there is no need to provide eyelets, the number of parts is reduced, and there is no need to provide eyelets, making it suitable for mass production.

Furthermore, since only two holes are required to be drilled in the bass diaphragm for one lead wire, manufacturing is easy and mass production is good.

In addition, since the lead wires only need to be inserted through two holes, the workability of inserting the lead wires is extremely good.
Easy to assemble.

There are advantages such as

[Brief explanation of drawings]

Figures 1 to 3 show the first embodiment of the present invention,
Of these, Figure 1 is a front view of the composite speaker of the present invention, Figure 2 is a simplified explanatory diagram showing the configuration of the present invention, Figure 3 is an explanatory diagram of the main parts of the present invention, and Figures 4 and 5 are Each is another embodiment of the present invention. 1 ...Bass speaker unit, 2 ...Other speaker units, 3...Frame, 4...Terminal,
5...Lead wire, 5'...Voice coil lead wire, 5a...Keeping part, 6...Bass diaphragm,
6a...first hole, 6b...second hole, 7...relay terminal, 8...voice coil.

Claims (1)

[Scope of Claim for Utility Model Registration] In a bass diaphragm having a hole for inserting a lead wire for connection to another speaker unit, the diaphragm has a voice coil and an input terminal bonded to the diaphragm. A first hole is drilled in a position suitable for electrical connection with the diaphragm, and a connecting lead wire is inserted into the first hole from the back side to the front side of the diaphragm, and the connecting lead wire is inserted through the first hole. A stop portion is formed to prevent this portion from coming off, and the first portion is folded back.
A second hole is inserted through the diaphragm, and the connection lead wire on the rear side is further drilled in the diaphragm at a position suitable for connection to the other speaker unit.
A composite speaker, characterized in that the speaker unit is inserted into the front side of the diaphragm through the hole to establish electrical connection between the speaker units.