JP2004040345A - Extensible microphone - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a microphone having a simple structure in which it is easily stored and extensible in the length direction. <P>SOLUTION: The extensible microphone 100 includes: a sound picking up section 10; an extensible rod 12 whose one end is connected to the sound picking up section 10; a microphone cord 11 whose one end is connected to the sound picking up section 10; and a support means 13 for turnably supporting the rod 12, and can adjust the position of the sound picking up section. Further, the rod is conductive and can be used for an antenna. The microphone cord can be wound on the rod and placed along the rod, and the other end of the microphone cord is coupled to a winding / unwinding mechanism when the microphone cord is placed along the rod. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a microphone suitable for use as a desk microphone or attached to a stand, and more particularly, to a microphone that has excellent durability and storage properties and can be extended and contracted in the length direction.
[0002]
[Prior art]
Conventionally, a gooseneck microphone 200 has been known as a microphone capable of adjusting a distance between a speaker's mouth and a sound pickup unit (microphone unit). FIG. 3 shows an example of a conventional gooseneck microphone 200. The gooseneck microphone 200 includes a sound collecting unit 20 that receives a speaker's voice, and a bendable gooseneck 21 having one end connected to the sound collecting unit 20. The speaker adjusts the distance between the sound pickup unit 20 and the mouth in accordance with the volume of the speaker and usage conditions by appropriately bending the gooseneck 21 by hand.
[0003]
However, the gooseneck microphone 200 has a complicated structure since a microphone cord (not shown) having one end connected to the sound pickup unit 20 must pass through the inside of the gooseneck 21. In addition, since the gooseneck 21 is only bendable and does not expand or contract in the length direction, the gooseneck 21 is compactly folded even when the gooseneck 21 is folded by moving the sound pickup unit 20 in the length direction of the microphone when not in use. On the other hand, there is a problem in that the microphone 200 is relatively long to make it easy to bend the gooseneck 21, and therefore requires a gooseneck having a large radius of curvature when bent, so that it is difficult to store the microphone 200 compactly. In addition, goosenecks are expensive.
[0004]
[Problems to be solved by the invention]
SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and has as its object to provide a microphone having a simple structure which is excellent in storability and can be expanded and contracted in the length direction.
[0005]
[Means for Solving the Problems]
In order to achieve the above object, the invention of claim 1 is:
Sound pickup section,
An extendable rod having one end connected to the sound pickup unit,
A microphone cord having one end connected to the sound pickup unit,
Support means for rotatably supporting the rod,
Comprising, a telescopic microphone, wherein the position of the sound pickup unit can be adjusted,
I will provide a.
[0006]
The invention according to claim 2 is characterized in that the rod is made conductive and can be used as an antenna.
The invention according to claim 3 is characterized in that the microphone cord is wound around the rod.
[0007]
The invention according to claim 4 is characterized in that the microphone cord is arranged along the rod, and the other end of the microphone cord is connected to a winding / rewinding mechanism.
The invention according to claim 5 is characterized in that the sound pickup unit is configured to be detachable from the rod.
[0008]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, the structure and operation of a telescopic microphone according to an embodiment of the present invention will be described with reference to the drawings. FIG. 1 shows an extended state of the telescopic microphone, and FIG. 2 shows a contracted state of the microphone. 1 and 2, a telescopic microphone 100 includes a sound collecting unit 10, a microphone cord 11 having one end connected to the sound collecting unit 10, and a microphone cord 11 having one end connected to the sound collecting unit 10 and the microphone cord 11 on the outer periphery. The telescopic rod includes a telescopic rod to be wound and a support member connected to the other end of the telescopic rod and rotatably supporting the telescopic rod. The support 13 is fixed to a base or other appropriate member by an appropriate means such as screwing. The other end of the microphone cord 11 is provided with a plug 14 for connecting to equipment having a built-in circuit such as an amplifier.
[0009]
The sound pickup unit 10 is the same as the sound pickup unit 20 in the conventional microphone, and receives a speaker's voice. One end of the microphone cord 11 is, for example, a shielded wire connected to the sound pickup unit 10, and the other end is connected to a plug 14 serving as an input terminal to another device or the like. The sound is transmitted to other devices through the microphone cord 11. For example, when the plug 14 is connected to a voice identification computer, the voice received by the sound pickup unit 10 is input to the computer, voice-identified, and the result is displayed on a display or the like connected to the computer. .
[0010]
As shown in FIGS. 1 and 2, the telescopic rod 12 has a structure in which a plurality of (three in FIG. 1) rod-shaped portions having different inner diameters are connected in a nested manner, and is close to the sound pickup unit 10. The part has a smaller inner diameter. For this reason, the speaker can grip the sound pickup unit 10 at the tip of the telescopic rod 12 and expand and contract it to an appropriate position around the mouth of the speaker. The microphone cord 11 is wound in a curl cord shape on the outside of the telescopic rod 12, has a certain amount of play even when the telescopic rod 12 is the longest, and does not overlap even when the telescopic rod 12 is the shortest. Has an appropriate length and rigidity.
[0011]
When the telescopic rod 12 is extended, the microphone cord 11 wrapped around the outer periphery of the telescopic rod 12 applies tension in the direction in which the telescopic rod 12 is contracted. It is preferable to use one that has a certain holding force due to an internal friction structure or the like and can be fixed at an arbitrary length against the tension from the microphone cord 11.
[0012]
When the telescopic rod 12 is contracted, the microphone cord 11 is contracted by its own tension using the telescopic rod 12 as a guide. As shown in FIG. Further, as described above, since the microphone cord 11 is set to an appropriate length, there is no possibility of disconnection.
[0013]
The support 13 is, for example, a ball joint, and any mechanism can be adopted as long as the mechanism can move the telescopic rod 12 and thus the sound pickup unit 10 to an arbitrary position.
[0014]
As described above, in the telescopic microphone 100 shown in FIGS. 1 and 2, the telescopic rod 12 is rotatably attached to the support 13, so that the sound pickup unit 10 and the mouth can be changed according to the voice volume of the user and the use conditions. The sound pickup unit 10 can be placed in an appropriate position while adjusting the distance to the sound pickup unit. Therefore, even when the howling occurs, the position of the sound pickup unit 10 can be easily changed, so that howling can be effectively avoided.
[0015]
In addition, the retractable microphone 100 can be shortened as a whole by contracting the telescopic rod 12, so that the retractable microphone 100 can be compactly stored and used as a microphone attached to equipment to be moved and used. Are suitable. Further, since the structure is simple and the number of components is small, it can be realized at low cost, and assembly and maintenance are easy.
[0016]
As described above, one embodiment of the microphone according to the present invention has been described, but the present invention is not limited to such an embodiment. For example, the cross-sectional shape of the telescopic rod is not limited to a circle, but may be an arbitrary shape such as a square or an ellipse.
[0017]
Further, by forming the telescopic rod from a conductive material and having the same structure as the rod antenna, it becomes possible to also use the telescopic rod of the microphone as an antenna for a transmitter or a receiver, for example.
[0018]
Furthermore, by providing a winding and rewinding mechanism for the microphone cord at the base of the telescopic rod, and arranging the microphone cord through the inside of the telescopic rod or along the outer surface of the telescopic rod and connecting it to the winding and rewinding mechanism, It is also possible to wind up or rewind the microphone cord according to the extension length of the extension rod so that the microphone cord does not become loose even if the extension rod is extended or contracted.
[0019]
Furthermore, since the sound pickup section can be detachable from the rod, it can be disposed at a more free position when the microphone is not required to be fixed. Accordingly, the sound pickup unit can be attached to the rod when it is desired to fix the sound pickup unit, and can be detached and used when the sound pickup unit is to be used at a free position.
[0020]
【The invention's effect】
As will be understood from the detailed description of one embodiment of the telescopic microphone according to the present invention, the rod according to the first aspect of the present invention can extend and contract a rod to which a sound pickup unit is connected at one end. Therefore, it is easy to adjust the distance between the sound pickup section and the mouth, and the sound pickup section can be adjusted to the optimum position according to the user's voice volume and use conditions, so that howling can be effectively avoided. In addition, there is an effect that the structure is simple, the assembling and the exchange of the cord are easy, and the maintenance is excellent.
[0021]
According to the second aspect of the present invention, the rod antenna provided in the transmitter or the receiver can be used as a telescopic rod, and the member of the existing rod antenna can be used as the support means of the telescopic rod. In addition, it is possible to effectively use the limited space and to reduce the cost. In particular, it is suitable for application to a wireless microphone device.
[0022]
According to the third aspect of the present invention, when the rod is reduced, the microphone cord is contracted by its own tension, so that the load on the microphone cord is not reduced and there is no fear of disconnection. As a guide, there is an effect that the cord does not hang down. In addition, since a commercially available inexpensive curl cord can be used, the cost can be reduced.
[0023]
The invention of claim 4 has an effect that the microphone cord does not become loose even when the rod is expanded and contracted.
According to the fifth aspect of the present invention, since the sound pickup section is detachable from the rod, it is possible to arrange the sound pickup section at a free position when the microphone is not required to be fixed.
[Brief description of the drawings]
FIG. 1 is a view schematically showing one embodiment of a microphone according to the present invention, in which a telescopic rod is extended.
FIG. 2 is a view schematically showing one embodiment of a microphone according to the present invention, in which a telescopic rod is contracted.
FIG. 3 is a diagram showing a gooseneck microphone of the related art.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 Sound collection part 11 Microphone cord 12 Contraction rod 13 Supporter 14 Plug 100 Telescopic microphone 200 Gooseneck microphone

Claims (5)

Sound pickup section,
An extendable rod having one end connected to the sound pickup unit,
A microphone cord having one end connected to the sound pickup unit,
Support means for rotatably supporting the rod,
Wherein the position of the sound pickup unit can be adjusted. The telescoping microphone according to claim 1, wherein the rod is conductive and can be used as an antenna. The telescopic microphone according to claim 1, wherein the microphone cord is wound around the rod. The telescopic microphone according to claim 1, wherein the microphone cord is disposed along the rod, and the other end of the microphone cord is connected to a winding / rewinding mechanism. The telescopic microphone according to any one of claims 1 to 4, wherein the sound pickup unit is configured to be detachable from the rod.

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