JP4724463B2 - Microphone - Google Patents

Description

  In the present invention, when wiring the connection cord drawn from the microphone unit side to the device side, even if stress is applied to the connection cord, the shock mount side that elastically supports the microphone unit is not deformed. This is a technology related to microphones.

In various types of handheld microphones, countermeasures against vibration noise generated when the microphone case vibrates become a problem. For such problems, a microphone unit is inserted and held in a shock mount formed in a ring shape, and then fitted and held inside the microphone case to reduce vibration noise. Is also disclosed in, for example, Patent Document 1 below.
Japanese Patent Laid-Open No. 11-331987

  On the other hand, FIG. 2 is an explanatory view showing a conventional example of a relatively small microphone used for incorporation on the device side, in which (a) is a front view, (b) is a right side view, c) shows rear views, respectively.

According to the figure, the microphone 1 is formed so as not to deteriorate the acoustic performance by installing the microphone unit 2 side away from the fixed side .

  That is, the microphone unit 2 has a shock mount 3 made of an elastic material such as rubber or elastomer interposed between a fixed side having an appropriate fastening structure and is elastically supported by the shock mount 3 so that the device side (not shown) The vibration noise generated due to the vibration transmitted from can be reduced. The shock mount 3 is said to be able to reduce vibration noise as the whole is made softer.

In this case, the shock mount 3 holds the microphone unit 2 in a state in which the front surface 2a side and the back surface 2b side are exposed, which is formed on the support portion 4 having an appropriate length and on the top side of the support portion 4. A holding portion 5 and a fixing portion 6 that is connected to the base end side of the column portion 4 and is attached to the device side are provided, and the whole is integrally formed using an elastic material such as rubber or elastomer.

  Further, the microphone 1 includes a connection cord 8 that is pulled out from the back surface 2b side of the microphone unit 2 and wired to the device side through the outside. The connection cord 8 uses a shielded wire to prevent noise from being generated due to electrostatic coupling.

  In the microphone 1 shown in FIG. 2, although a shielded wire is used as the connection cord 8 drawn from the back surface 2b side of the microphone unit 2, stress is applied when wiring this to the device side, There is a disadvantage that the shock mount 3 is displaced by the stress, particularly on the support main body 4 side.

  For such inconvenience, the use of the thin and soft connection cord 8 can reduce the occurrence of displacement on the shock mount 3 side to some extent. However, on the other hand, as already described, there is also a demand to make the entire shock mount 3 softer from the viewpoint of more effectively reducing the generation of vibration noise.

  That is, even if a thin and soft connection cord 8 is used, if the shock mount 3 side is too soft, if stress is applied when wiring the connection cord 8, the shock mount 3 side is displaced as in the conventional case. As a result, there still remains a problem that the microphone unit 2 side cannot be elastically supported under the correct positional relationship.

  In view of the above problems of the prior art, the present invention provides a shock mount side that elastically supports the microphone unit even when stress is applied to the connection cord when wiring the connection cord drawn from the microphone unit side to the device side. An object is to provide a microphone that does not cause deformation.

The present invention has been made to achieve the above object, and is a microphone unit, a shock mount elastically supported by the microphone unit, and freely mounted on the device side, and pulled out from the microphone unit side. In the microphone including at least a connection cord wired to the device side, the shock mount is provided with a hollow strut having an appropriate length having an internal space , and connected to the top of the hollow strut , and a holder for holding the microphone unit provided with a front opening and a rear opening, wherein is connected to the proximal end of the hollow strut comprises at least a fixing portion to be attached to the device side, the microphone unit The front side that is the sound collection unit is on the front opening side, and the back side to which one end of the connection cord is connected is the back opening. To be positioned respectively is held on the holding portion Rutotomoni, the connection cord pulled out from the back side of the microphone unit, the from the rear opening and communicated the introduction port provided in the hollow strut side The most important feature is that it is introduced into the internal space and can be led out to the device side through the lower surface opening of the fixed portion communicating with the internal space .

In this case, the shock mount is preferably integrally formed of an elastic material including a rubber material. Moreover, it is desirable that the microphone unit is freely detachably held by the holding portion of the shock mount .

According to the present invention, the microphone unit in which the front side that is the sound collection unit is positioned on the front opening side is held by the holding unit of the shock mount, and the connection cord drawn from the back side of the microphone unit is held by the holding unit. is introduced into the interior space of the hollow struts through the face opening and communicated so the inlet after, it is possible to derive to equipment side through the opening on the bottom of the fixing unit, wired to the equipment-side In addition to reducing the possibility of stress being applied, it is possible to eliminate the application of a force that displaces the shock mount even if stress is applied.

  1A and 1B are explanatory views showing an example of the present invention, in which FIG. 1A is a front view, FIG. 1B is a right side view including a main section, and FIG. 1C is a rear view.

  According to the figure, the microphone 11 is pulled out from the microphone unit 12, the shock mount 22 that is elastically supported by the microphone unit 12 and can be freely attached to a device (not shown), and the microphone unit 12 side. A connection cord 32 wired to the device side is provided at least.

  Among these, the microphone unit 12 is formed by, for example, a minute condenser microphone unit having a substantially cylindrical shape with an outer diameter of about 10 mm, and the sound collection unit side including the diaphragm is disposed on the front surface 13 side, and the rear surface 14 side. Are provided with connection terminals to which one end side of the connection cord 32 is connected.

  The shock mount 22 made of an elastic material including a rubber material includes a hollow support portion 23 having an appropriate length, a holding portion 25 for holding the microphone unit 12 on the top side of the hollow support portion 23, and a hollow support portion. 23 is provided integrally with at least a fixing portion 26 which is connected to the base end side of the 23 and attached to the device side.

  In this case, the hollow column portion 23 is formed to have a substantially hollow cylindrical shape having a height of about 20 mm and an outer diameter of about 10 mm, for example, and has an internal space 22a along the length direction thereof. .

  In addition, the hollow strut portion 23 located on the back surface 14 side of the microphone unit 12 is provided with an introduction port 24 communicated with a back surface opening portion 25b described later provided on the holding portion 25 side adjacent thereto. Thus, the connection cord 32 drawn from the back surface 14 side of the microphone unit 12 can be introduced into the internal space 22a.

Further, the holding part 25 integrally formed on the top side of the hollow column part 23 can hold and hold the microphone unit 12 with the front face 13 side and the rear face 14 side exposed. The front opening 25a and the back opening 25b have an inner diameter slightly smaller than the outer diameter of the microphone unit 12.

  In this case, since the holding portion 25 is formed with a certain degree of elasticity, the microphone unit 12 can be detachably held via the front opening 25a or the back opening 25b. ing.

Furthermore, the fixing portion 26 integrally formed on the proximal end side of the hollow support portion 23 is formed by being provided with an appropriate mounting structure determined in relation to the structure of the corresponding portion on the device side. If this is described based on the illustrated example, the fixing portion 26 includes a groove portion 27 provided around the large diameter portion having a lower surface opening portion 26a communicating with the internal space 22a of the hollow column portion 23, and the groove portion 27. It is formed by a lower flange portion 28 and an upper flange portion 29 that are divided into two via a groove portion 27.

  Next, the operation and effect of the present invention having the above-described configuration will be described. The microphone unit 12 can be installed separately from an appropriate device side as an attachment target member (not shown) via the shock mount 22. It can be arranged without deteriorating its acoustic performance.

  That is, the microphone unit 12 can be freely detachably held via the front opening 25a or the back opening 25b of the holding portion 25 in the shock mount 22.

  In addition, the connection cord 32 drawn out from the back surface 14 side of the microphone unit 12 has an introduction port 24 formed in a portion extending from the back surface opening portion 25b of the holding portion 25 to the hollow column portion 23 side in the shock mount 22. Then, as shown in FIG. 1B, it can be introduced into the internal space 22a and led out from the lower surface opening 26a on the fixed portion 26 side.

  Accordingly, since the connection cord 32 drawn out from the back surface 14 side of the microphone unit 12 can be wired to the device side by always passing through the inside of the shock mount 22, the possibility of applying stress when wiring is increased. Can be reduced. Further, even if stress is applied when wiring the connection cord 32, it is possible to eliminate a force that causes the shock mount 22 to be displaced.

  For this reason, the shock mount 22 itself can be formed to be softer as a whole, and generation of vibration noise can be effectively reduced accordingly.

  In addition, the shock mount 22 is stable on the device side by, for example, arranging the lower flange portion 28 and the upper flange portion 29 in the fixing portion 26 so as to sandwich the mounting hole provided on the device side. Can be fixed.

  Accordingly, the microphone 11 is fixed to the device side via the fixing portion 26 of the shock mount 22 and is elastically supported to the shock mount 22 side without deformation via the holding portion 25, so that the microphone 11 is correct. Since it can be installed in a positional relationship, the performance as designed can always be exhibited.

  The above is the description of the present invention based on the illustrated example, and the specific configuration is not limited thereto. For example, the position and size of the introduction port 24 formed on the shock mount 22 side can be appropriately selected as desired. Moreover, although it is desirable to form the shock mount 22 integrally, the shock mount 22 may be formed by forming a part of the shock mount 22 separately and integrally combining them. Furthermore, the hollow support | pillar part 23 in the shock mount 22 will not ask | require the specific shape, if only the internal space 22a can be ensured. The holding unit 25 can also be formed by providing a holding structure or a holding structure in which the microphone unit 12 cannot be attached and detached.

It is explanatory drawing which shows an example of this invention, (a) is a front view, (b) shows the right view containing a principal part cross section, (c) shows a rear view, respectively. It is explanatory drawing which shows the prior art example of the comparatively small microphone used for apparatus incorporation, (a) is a front view, (b) shows a right view, (c) shows a rear view, respectively.

DESCRIPTION OF SYMBOLS 11 Microphone 12 Microphone unit 13 Front surface 14 Back surface 22 Shock mount 22a Internal space 23 Hollow support | pillar part 24 Introduction port 25 Holding part 25a Front surface opening part 25b Rear surface opening part 26 Fixing part 26a Bottom surface opening part 27 Groove part 28 Lower side collar part 29 Upper side Part 32 Connection cord

Claims (3)

A microphone including at least a microphone unit, a shock mount that is elastically supported by the microphone unit and can be freely attached to a device side, and a connection cord that is drawn from the microphone unit side and wired to the device side In
The shock mount is provided with a hollow strut having an appropriate length and having an internal space , and is connected to the top side of the hollow strut , and includes a front opening and a rear opening to hold the microphone unit. Part, and at least a fixing part that is connected to the base side of the hollow column part and is attached to the device side,
The microphone unit, the front side is a sound pickup section on the front opening side, Rutotomoni to hold the rear side whose one end is connected to the connection cord to the holding portion by positioning each of the rear opening side ,
The connection cord pulled out from the back side of the microphone unit is introduced into the internal space from an introduction port provided on the hollow support column side in communication with the back opening, and communicates with the internal space. The microphone can be freely led out to the device side through the lower surface opening of the fixed portion.   The microphone according to claim 1, wherein the shock mount is integrally formed of an elastic material including a rubber material.   The microphone according to claim 1 or 2, wherein the microphone unit is detachably held by the holding portion of the shock mount.

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