JPH05176386A - Microphone grip - Google Patents

Abstract

PURPOSE:To make production efficient and to reduce the cost of a product by sharing a grip part in a connector type microphone and a direct type microphone. CONSTITUTION:A fixing means 22 to be used for the fixing of a connector joint part at the time of using a microphone grip 20 for a connector connecting type microphone and a stopping means 23 to be used for the stop of a bushing part at the time of using the grip 20 for a direct type microphone are formed in the vicinity of the flower end part of the grip 20.

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION This invention relates to microphones and more particularly to microphone grips.

[0002]

2. Description of the Related Art Generally, a dynamic microphone is known as a connector type in which a microphone body can be detached from a shield portion by a canon connector portion, and a direct connection type in which a microphone body and a shield portion are permanently attached. There is. Normal,
The connector type is used in high-performance high-end microphones, while the direct connection type is used in low-cost microphones.

9 (a) and 9 (b) show a connector type microphone in a plan view and a sectional view. The microphone body 1 includes a sound pickup section 2 having a built-in sound pickup mechanism 2a composed of a diaphragm, a voice coil, a magnet, etc., a grip section 3 for a user to hold, and a lower end inside the grip section 3. It is composed of the attached connector joint portion 4. An on / off switch 3a is attached to the grip portion 3, for example. Reference numeral 5 denotes a lead wire that connects the sound collecting mechanism 2a, the on / off switch 3a, and the terminal 4a of the connector joint portion 4.

A connector pin 4b is provided below the connector joining portion 4 so as to be joined to a Canon connector 6 provided at one end of a shield 7. Further, a screw hole 3b is provided in the vicinity of the lower end of the grip portion 3, and the screw B connects the screw B through the screw hole 3b.
The connector joint portion 4 is fixed to the lower end portion of the grip portion 3 by being screwed into.

The grip portion 3 is made of a material such as zinc or aluminum by a die casting manufacturing method. By using zinc and aluminum, it is possible to form the grip portion 3 having a good appearance and a heavy feeling (that is, a high-grade feeling).

On the other hand, FIGS. 10 (a) and 10 (b) show a direct connection type microphone in a plan view and a sectional view. Similarly to the connector type, the microphone body 10 includes a sound pickup unit 11 having a built-in sound pickup mechanism 11a including a diaphragm, a voice coil, a magnet, and the like.
And a grip portion 12 to which an off switch 12a is attached.

A locking portion 12b is formed on the inner peripheral surface of the lower end of the grip portion 12, and the bushing portion 13 press-fitted into the grip portion 12 from below is locked and fixed by the locking portion 12b. There is.

A lead wire 14 connects between the sound collecting mechanism 11a and the on / off switch 12a. The terminal of the on / off switch 12a is directly connected to the shield 15 and guided to the outside. That is, the shield portion 15 is non-detachably connected to the microphone body via the bushing portion 13. In the case of such a direct connection type or the like, the grip part 12 is often resin-molded in consideration of cost reduction.

[0009]

By the way, with respect to each type of microphone, each grip portion has a different function at its lower end portion. That is, the connector type is provided with the screw hole 3b as shown in FIG. 9 and has the function of attaching the connector joint portion 4. However, in the case of the direct connection type, the bushing portion is provided by the locking portion 12b as shown in FIG. 13 is provided with a slip-out prevention function. For this reason, the grip portion cannot be shared for each type of microphone, which causes a problem of waste of the production line and increase of manufacturing cost.

[0010]

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and is for mounting a connector joint portion in the vicinity of a lower end portion of a microphone grip when a connector connection type microphone is provided. The attaching means used and the retaining means used for preventing the bushing part from coming off when the microphone is of a direct coupling type,
It is configured such that both are provided.

[0011]

With the above structure, as the microphone grip, the same molded product can be used for both the connector type microphone and the direct connection type microphone.

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the microphone grip of the present invention will be described below with reference to FIGS.

1 (a) and 1 (b) are a plan view and a sectional view of a microphone grip (hereinafter referred to as a grip portion) of this embodiment, and 20 is a grip formed by using, for example, an iron pipe material. The main body, 21 is a switch hole for mounting the on / off switch device, 22 is a screw hole provided near the lower end, and 23 is provided on the inner peripheral surface near the lower end so as to project, for example, in a circular shape. It is a locking portion provided. Reference numeral 24 is a screw groove for joining with the sound collecting mechanism.

The grip portion 20 is formed, for example, by rolling and compressing a pipe material to deform it. This molding method will be described with reference to FIGS.

First, as shown in FIG. 2, the iron pipe material P is cut into a predetermined length L corresponding to the length of the grip portion 20.
Then, the cut iron pipe material Pc is sent to the rolling and compression pressing steps.

In this pressing process, as shown in FIG.
As shown in the schematic view and the cross-sectional view in (b), first, the rolling die K ₁ is press-fitted into the iron pipe material Pc, and the compression die K ₂ is fitted around the iron pipe material Pc. .. The iron pipe material Pc is deformed to the shape of the grip portion 20 as shown in FIG. 4 by the pressure applied by the rolling die K ₁ and the compression die K ₂ .

After the basic shape of the grip portion 20 is formed in this way, a switch hole 2 for mounting an on / off switch as shown in FIG. 5 is formed by press punching.
1 and a screw hole 22 for attaching the connector portion, and further, as shown in FIG. 6, a screw groove 24 for joining with the sound collecting mechanism is formed, and therefore, thread rolling is performed.

Thereafter, for example, by squeezing the inner wall of the cylinder from the upper side of the grip portion 20 to the lower side, a raised portion is formed at a predetermined portion.
The locking portion 23 shown in (b) is used. In addition, this locking portion 2
3 does not have to be circular, but may be, for example, a plurality of claw-shaped projections provided at predetermined intervals in the circumferential direction.

As described above, after the grip portion 20 is formed into a predetermined shape in the steps of FIGS. 2 to 6, finally, a surface treatment such as polishing by buffing, plating and painting is performed to obtain a good appearance. The manufacturing process of the grip portion 20 of FIG. 1 is completed.

Since the grip portion 20 is constructed as described above, the grip portion 20 is used in FIG.
A connector type microphone as shown in FIG. 8B and a direct connection type microphone as shown in FIGS. 8A and 8B can be realized. In FIGS. 7 and 8, the same parts as those in FIGS. 9 and 10 are designated by the same reference numerals and the description thereof will be omitted.

That is, in the case of the connector type shown in FIG. 7, the connector joint portion 4 is inserted from the lower end side of the grip portion 20, and the connector joint portion 4 has a screw hole 2
It is fixed by the screw B inserted through 2. Further, the on / off switch 3 a is attached through the switch hole 21 of the grip portion 20, the sound collecting mechanism 2 a is attached by the screw groove 24, and the sound collecting mechanism 2 a is arranged inside the sound collecting portion 2.

Of course, the sound pickup mechanism 2a, the on / off switch 3a, and the terminal 4a of the connector joint portion 4 are connected by a lead wire 5. Also, the connector joint 4
Is connected to a Canon connector 6 provided at one end of the shield 7 by a connector pin 4b provided therebelow.

In the case of the direct connection type of FIG. 8, the on / off switch 12a is attached through the switch hole 21 of the grip portion 20 and the sound collecting mechanism 11a is further attached by the screw groove 24, similarly to the connector type of FIG. Installed,
It is arranged inside the sound collection unit 2. Further, the lead wire 14 connects between the sound collecting mechanism 11a and the on / off switch 12a, but the terminal of the on / off switch 12a is directly connected to the shield 15 and guided to the outside.

Then, the bushing portion 13 is press-fitted from the lower end side of the grip portion 20, and the bushing portion 13 is locked and fixed by the locking portion 23 provided on the inner peripheral surface of the grip portion 20 so as not to fall out. Has been done. The shield portion 15 is non-detachably connected to the microphone body via the bushing portion 13. In addition,
In this case, since the screw hole 22 has no particular function, the short screw _BD is screwed into the screw hole 22 for the purpose of closing the screw hole 22.

As described above, in this embodiment, the grip portion 20
A screw hole 22 is provided near the lower end of the connector to attach the connector joint when the microphone is a connector-connection type microphone, and to prevent the bushing part from coming off when the microphone is a direct-connection type microphone. The grip portion 20 of this embodiment can be used with either a connector type microphone or a direct connection type microphone. That is, since the grip part 20 which is the same molded product can be shared, the manufacturing process of the grip part 20 can be made efficient, and the cost of the microphone can be reduced.

In the present invention, the means for attaching the connector joint portion provided in the grip portion and the retaining means used for preventing the bushing portion from coming off are in the form of the screw hole 22 and the engaging portion 23. Not limited to
Various changes are possible.

In this embodiment, the grip portion is formed by using the iron pipe material in the rolling and compression pressing steps, but this brings about the following advantages.

For example, the grip part is generally manufactured by a die casting method, but in this case, naturally, a parting line of the mold exists, and a burr part is formed on the molded product corresponding to the parting line. Will occur. For this reason, after die-casting, it was necessary to perform cutting by a lathe before performing surface treatments such as polishing, plating and painting. However, since this cutting process requires a long time, it has been a cause of prolonging the manufacturing process, complicating it, and increasing the cost.

On the other hand, in the case of the present embodiment, since the pipe material is rolled and compressed to be deformed into a predetermined shape and the grip portion 20 is molded, burrs and the like are not generated, and therefore plating or the like is not required. There is no need for a long-time process of adjusting the outer shape in a cutting process using a lathe before performing the surface treatment, which facilitates shortening of the process, simplification, and cost reduction. Of course, since the grip portion 3 has a certain weight by using the iron pipe material Pc, the grip portion 3 can be used as it is as a grip portion of a high-grade microphone having a feeling of weight. Not only iron pipe material,
Other metal pipes such as an aluminum pipe and a brass pipe may be used.

The grip portion may be molded into the shape shown in FIG. 1 by using, for example, a resin (ABS resin or the like). In this case, the molding process of the grip portion is somewhat simplified, but it lacks a feeling of weight and is not optimal as a high-end model microphone, but there is no problem with a so-called inexpensive microphone.

[0031]

As described above, the microphone grip of the present invention is the direct connection type microphone and the mounting means used for mounting the connector joint portion when the connector connection type microphone is formed in the vicinity of the lower end portion. At this time, a retaining means used to prevent the bushing portion from coming off is provided, and therefore, it can be adopted for both the connector type and the direct connection type. That is, the microphone grip of the present invention can be commonly used for any type, and there is an effect that it is possible to remarkably promote the improvement of manufacturing efficiency and the reduction of manufacturing cost.

[Brief description of drawings]

FIG. 1 is a plan view and a sectional view of a microphone grip according to an embodiment of the present invention.

FIG. 2 is a first example of manufacturing the microphone grip of the present embodiment.
It is explanatory drawing of a process.

FIG. 3 is a second example of manufacturing the microphone grip of the present embodiment.
It is explanatory drawing of a process.

FIG. 4 is a third example of manufacturing the microphone grip of the present embodiment.
It is explanatory drawing of a process.

FIG. 5 is a fourth example of manufacturing the microphone grip of the present embodiment.
It is explanatory drawing of a process.

FIG. 6 is a fifth example of manufacturing the microphone grip of the present embodiment.
It is explanatory drawing of a process.

FIG. 7 is an explanatory diagram of a connector type microphone adopting the present embodiment.

FIG. 8 is an explanatory diagram of a direct connection type microphone adopting the present embodiment.

FIG. 9 is an explanatory diagram of a connector type microphone.

FIG. 10 is an explanatory diagram of a direct connection type microphone.

[Explanation of symbols]

 20 grip part 22 screw hole 23 locking part

Claims (1)

[Claims] 1. A mounting means used for mounting a connector joint portion when used for a connector connection type microphone near the lower end portion, and for preventing a bushing portion from coming off when used for a direct connection type microphone. A microphone grip, characterized in that: