JP3007978U - Microphone device - Google Patents

Abstract

(57) [Abstract] [Purpose] A microphone that is convenient to carry and that can be freely set in the direction of the sound source without being affected by mechanical vibration from the recorder or emission of sound waves accompanying the mechanical vibration. Provide a device. [Structure] A plug 1 is connected to a microphone unit 6 via a flexible shaft 4, and an elastic member made of vinyl chloride resin capable of absorbing mechanical vibration is connected to a connecting portion between the flexible shaft 4 and the microphone unit 6 and the plug 1. The materials 2 and 5 are interposed. At the time of use, plug 1 is inserted into the jack of the recorder to function as an independent microphone. The direction of the microphone unit 6 is
By freely bending the flexible shaft 4, it can be oriented in any direction.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a microphone device, and more particularly, to a microphone device in which a plug is inserted into a jack provided in a recorder or the like to directly support the microphone unit in the device.

[0002]

[Prior art]

 There are mainly three types of microphones used in recorders. That is, the microphone unit is built into the recorder, and the microphone that is used to collect sound is used.The microphone unit is equipped with a plug on the opposite side of the sound collecting surface, and the plug is inserted into the jack of the recorder. However, a microphone that is attached directly to the recorder to collect sound, and a plug that is provided at the end of the cord that is pulled out from the microphone unit, is inserted into the jack of the recorder to collect sound. is there.

Among these types of microphones, those with an integrated microphone unit or those that are directly attached have the microphone unit fixed, so the recorder itself is moved during recording so that the microphone unit I am trying to turn it in the direction.

In addition, in the case where the microphone unit and the plug are connected by a cord, the microphone unit cannot stand on its own. Therefore, use the microphone stand to hold the microphone unit in the direction of the sound source. ing.

[0005]

[Problems to be solved by the device]

 By the way, with a microphone unit integrated or directly mounted, the recorder itself has to be moved to direct it toward the sound source, which is inconvenient and depending on where the recorder is placed Sometimes you can't turn. Moreover, since the distance between the recorder and the mechanical section is short, it is affected by the mechanical vibration of the recorder itself and the emission of sound waves accompanying this vibration. By the way, when changing the direction of the microphone unit when recording, if you do not pay particular attention, you will pick up frictional sounds between the recorder and the installation site, and the effect will be significant.

On the other hand, in the case where the microphone unit and the plug are connected by a cord, a connection cord and a microphone stand are required in addition to the microphone unit. However, these items are relatively large and portable, even though portable recorders such as MD (micro disk) and DAT (digital audio tape) in recent years have become smaller and more convenient to carry. It will be inconvenient.

The present invention has been made in view of the circumstances of the prior art as described above, and its purpose is to be convenient to carry, and the influence of mechanical vibration from a recorder and emission of sound waves accompanying the mechanical vibration. It is an object of the present invention to provide a microphone device that can be freely set in the direction of a sound source without receiving a sound.

[0008]

[Means for Solving the Problems]

 In order to achieve the above object, the present invention provides a microphone device including a microphone unit having a built-in acoustic conversion means and a plug for inputting an output signal obtained from the microphone unit to a device such as a recorder. In the above, the microphone unit and the plug are connected by a flexible shaft, and an elastic material is interposed in at least one of the connecting portions of the both.

In this case, the grip portion of the plug itself may be made of an elastic material capable of absorbing mechanical vibration, and more preferably, in addition to this, the grip portion of the microphone unit and the flexible shaft is connected. It is advisable to interpose an elastic material capable of absorbing mechanical vibration.

[0010]

[Action]

 With the above structure, the microphone unit is connected to the recorder via the flexible shaft and the plug. . As a result, the microphone unit is directly attached, but it is separated from the recorder by the size of the base of the plug and the length of the flexible shaft, and the sound waves reflected from the recorder are collected by the microphone unit. It becomes difficult to be played. Moreover, since an elastic material is interposed between the recorder and the microphone unit, it is difficult for mechanical vibration to be transmitted from the recorder to the microphone unit.

Further, since the microphone unit is directly supported on the recording device side by the flexible shaft and the plug, the flexible shaft can be bent regardless of the position or posture of the recording device, so that the microphone unit can be used as a sound source. It can be oriented in any direction, eliminating the need for cords or microphone stands.

[0012]

【Example】

 Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a schematic cross-sectional view showing a part of the structure of the microphone device according to this embodiment.

According to this, the microphone device is basically composed of a plug 1 to be inserted into a jack of a recorder (not shown), a microphone unit 6, and a flexible shaft 4 connecting the two.

In this embodiment, the plug 1 is a single-headed plug, and the grip portion 2 is made of an elastic material of vinyl chloride resin capable of absorbing mechanical vibration. In this case, the grip portion 2 is formed in a substantially L shape, a plug 1 is projectingly provided on one end side thereof, and a metal pipe 3 is formed on the other end side thereof, for example, in the vinyl chloride resin as the elastic material. It is buried in. Then, one end of the flexible shaft 4 is inserted into the pipe 3 and fixed by caulking the pipe 3. Note that this fixing may be performed by an adhesive.

On the other hand, the microphone unit 6 is held in a cylindrical holder 7. In this case, the holder 7 is connected to the other end side of the flexible shaft 4 via an elastic material 5 made of vinyl chloride resin capable of absorbing mechanical vibration.

That is, the elastic member 5 has an enlarged diameter base portion 5a inserted into the holder 7 through a small hole formed in the bottom portion of the holder 7 and the outside of the holder 7 from the base portion 5a. And a sleeve 5b that is integrally provided so as to extend to the other end, and the other end side of the flexible shaft 4 is press-fitted into the sleeve 5b.

A drawer cord 8 extending from the microphone unit 6 to the plug 1 is inserted inside the flexible shaft 4. Further, it goes without saying that the microphone unit 6 used here may be a stereo microphone unit.

This microphone device functions as a part of the recorder by inserting the plug 1 into the recording jack of the recorder. And according to this, only the microphone unit 6 can be arbitrarily directed toward the sound source without moving the recorder. This is defined by the length of the flexible shaft 4 and its deformable range, but it can be deflected in any direction with respect to the entire space except the installation position of the recorder.

In this embodiment, vinyl chloride resin is exemplified as the elastic material interposed in the connecting portion of the microphone unit 6 and the flexible shaft 4 and the elastic material of the grip portion 2 of the plug 1. However, other well-known elastic materials that can be integrally molded can be used. Further, although the grip portion 2 of the plug 1 is bent in a substantially L shape, it is needless to say that the grip portion 2 may be linearly formed.

According to the embodiment configured as described above, the following effects can be obtained. (1) It is convenient to carry because it does not use a cord. (2) In addition, since the cord is not used, it will not be entangled with the cord of other devices such as headphones for monitoring, and will be easier to use. (3) The microphone unit can be self-supported because it is directly connected to the recording device and directly attached. This makes the recorder itself stand-alone, eliminating the need for a microphone stand that was previously required. (4) By eliminating the need for a stand, it does not get in the way of carrying and is convenient to carry. (5) By freely bending the flexible shaft, the direction of the microphone unit can be freely changed without moving the recorder. (6) Since the microphone unit is separated from the recorder body to some extent and an elastic material is interposed between the microphone unit and the recorder unit, it is less affected by mechanical vibration from the recorder side. In this case, if the grip portion of the plug itself is made of an elastic material capable of absorbing mechanical vibration, the number of parts does not increase. (7) Due to the same reason, the influence of radiation and reflection of sound waves from the recorder is reduced, and the sound quality is improved. (8) For the same reason, the microphone unit is placed in a free space without obstacles around it, which is acoustically advantageous. (9) If the microphone unit is supplied with power from the recorder side, it will be optimal for condenser microphones.

[0021]

[Effect of device]

 As described above, according to the present invention, the microphone unit and the plug are connected by the flexible shaft, and the elastic material capable of absorbing the mechanical vibration is interposed in at least one of the connecting portions of the two, thereby The microphone unit is directly attached to the recorder via the flexible shaft, eliminating the need for a cord or microphone stand, making it convenient to carry.

Further, since the elastic material capable of absorbing mechanical vibration is interposed between the microphone unit and the recorder, the influence of mechanical vibration from the recorder and emission of sound waves accompanying the mechanical vibration. It is possible to improve the sound quality by receiving less. Furthermore, by flexibly bending the flexible shaft, the microphone unit can be freely set in the direction of the sound source without moving the recorder.

By forming the grip portion itself of the plug from an elastic material capable of absorbing mechanical vibration, the conventional structure can be maintained without increasing the number of parts.

[Brief description of drawings]

FIG. 1 is a schematic configuration diagram showing an internal structure of a microphone device according to an embodiment of the present invention.

[Explanation of symbols]

 1 Plug 2 Grip part 3 Pipe 4 Flexible shaft 5 Elastic material 6 Microphone unit 7 Holder 8 Drawer cord

Claims (3)

[Scope of utility model registration request] 1. A microphone device comprising: a microphone unit having a built-in acoustic conversion means; and a plug for inputting an output signal obtained from the microphone unit to a device such as a recorder. A microphone device which is connected to a plug by a flexible shaft, and an elastic material capable of absorbing mechanical vibration is interposed in at least one of connection parts of both. 2. The microphone device according to claim 1, wherein the grip portion of the plug is made of an elastic material capable of absorbing mechanical vibration. 3. An elastic material capable of absorbing mechanical vibration is interposed in a connecting portion between the microphone unit and the flexible shaft, and a grip portion of the plug is made of an elastic material capable of absorbing mechanical vibration. The microphone device according to claim 1, wherein the microphone device is provided.