JP2006311450A - Microphone mounting structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To obtain a microphone mounting structure wherein an occupancy area is small, a configuration is simplified, the number of components is reduced, assembly is facilitated, costs are reduced, fastening power in a mounting portion can be varied in accordance with various conditions such as the length of an arm to mount a microphone thereon and the rotating position of the arm at the time of mounting can be freely adjusted. <P>SOLUTION: The structure includes a base member 15 to be attached to the desk, a connection member 20 which is supported by the base member 15 and can connect the base end portion of the arm which supports the microphone at a tip end side, and an elastic member 12 interposed between the base member 15 and the connection member 20. The elastic member 12 is disposed while surrounding the connection member 20 and fitted into a hole 17 formed on the base member 15. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a structure for attaching a microphone suitable for, for example, a gooseneck type microphone to a desk or table.

  There is a gooseneck type microphone in which a microphone is attached to the tip of an arm made of a flexible pipe, and the arm can be bent in an arbitrary direction so that the microphone can be in an arbitrary direction. A gooseneck type microphone is generally used on a desk. The base end of the flexible pipe is connected to a fixture fixed on the desk, and the flexible pipe rises from this fixture.

  4 to 6 show a conventional example of a conventional relatively inexpensive gooseneck type microphone. 4 to 6, a top plate 10 such as a desk to which a microphone is attached is provided with a hole 11 for passing a cord extending from the microphone. A base 40 is attached on the top plate 10 so as to overlap the hole 11. The base 40 has a disk-like outer shape, and a cylindrical portion rises upward from its center upward, and a male screw 41 is formed on the outer peripheral surface of the cylindrical portion. The base 40 is provided with attachment holes 42 at three locations. By screwing, for example, wood screws inserted into the attachment holes 41 into the top plate 10, the cylindrical portion of the base 40 and the holes 11 of the top plate 10 are provided. And the base 40 is fixed to the top board 10.

  At the upper end of the cylindrical portion of the base 40, the flange portion 31 at the lower end of the connecting tube 30 that forms the base of the microphone support arm is placed, and the connecting ring 26 is screwed into the male screw 41 of the cylindrical portion of the base 40. The connection pipe 30 is configured to be connected to the base 40. More specifically, the connecting ring 26 is mainly composed of a cylindrical portion in which a female screw to be screwed into the male screw 41 is formed, and has an inward flange portion 27 at an upper end portion, and the female screw is screwed into the male screw 41. Accordingly, the connecting tube 30 is configured to be connected to the base 40 in a state where the flange portion 27 presses the flange portion 31 of the connecting tube 30 against the upper end of the cylindrical portion of the base 40.

  The lower end of the flexible pipe 32 is connected to the upper end of the connecting pipe 30, the lower end of the relay pipe 33 is connected to the upper end of the flexible pipe 32, and the lower end of the flexible pipe 34 is connected to the upper end of the relay pipe 33. The microphone holder 35 is connected to the upper end of the flexible pipe 34. The microphone holder 35 has a receiving portion 36 for attaching a microphone. The microphone holder 35 guides an output signal from the microphone to the outside when the microphone is attached to the receiving portion 36, and in the case of a condenser microphone, a microphone unit. Has a connector for supplying power. A cord is pulled out from the connector, and the cord passes through the flexible pipe 34, the relay pipe 33, the flexible pipe 32, the connecting pipe 30, the base 40, and through the hole 11 of the top plate 10 to the outside. The presence of the flexible pipes 34 and 32 between the base 40 and the microphone holder 35 constitutes a so-called gooseneck type microphone, and the direction of the microphone mounted on the holder 35 can be directed in an arbitrary direction. it can.

  In the conventional gooseneck type microphone described above, the base 40 is directly fixed to the top plate 10 such as a desk, and the anti-vibration property is not taken into consideration. For this reason, when the document is moved on the desk or the writing instrument is raised or lowered, the vibration of the top 10 is directly transmitted to the microphone, and there is a problem that vibration noise is generated.

  Therefore, as shown in FIGS. 7 to 9, it has been proposed to interpose an elastic material between the base and the top plate. 7 to 9, a cylindrical portion extending upward from the center of a flat disk-shaped base 45 is integrally formed, and a male screw 46 is formed on the outer peripheral surface of the cylindrical portion. Circular holes 48 are formed at three locations in the base 45, and elastic materials 50 made of rubber are fitted into these holes 48. The elastic member 50 has a substantially cylindrical shape, and a substantially cylindrical sleeve 52 made of, for example, metal is inserted on the inner peripheral side of the elastic member 50. The base 45 is attached to the top plate 10 by screwing the wood screw inserted into the center hole of the sleeve 52 into the top plate 10 such as a desk. An arm that supports a microphone is attached to the cylindrical portion of the base 45. This arm is of a so-called gooseneck type, and has the same structure as that of the arm in the above-described conventional example, and the connection structure to the base 45 is also the same as that in the above-described conventional example.

  According to the conventional example shown in FIGS. 7 to 9, since the elastic member 50 is interposed between the base 45 and the top plate 10 such as a desk, the vibration generated in the top plate 10 is buffered by the elastic member 50 and the microphone. There is an effect that noise generated in the microphone is reduced without being transmitted to the microphone. However, according to the above-described conventional example, it is necessary to add the elastic material 50 and the sleeve 52 to each attachment portion of the base 45 to the top plate 10, so that the number of parts increases and the assembly becomes troublesome. There is a point.

  10 to 12 show examples of still another mounting structure of the conventional gooseneck type microphone. 10 to 12, reference numeral 60 denotes a base attached to a top plate such as a desk. The base 60 includes a flat ring-shaped portion for fixing to a top plate such as a desk, attachment holes 61 formed in three places of the ring-shaped portion, and a cylindrical portion embedded in the top plate such as a desk. 62. The cylindrical portion 62 has a relatively large outer diameter and inner diameter, and an arm support 64 is supported on the inner diameter side via an elastic support 63. The elastic support 63 has a ring shape in plan view and a semicircular cross section, and the semicircular portion functions as an elastic body by bending. The elastic support 63 supports the upper and lower ends of the arm support 64. The arm support 64 has a cylindrical shape as a whole, and a cylindrical arm connection member 55 is inserted on the inner diameter side of the arm support 64, and the arm connection member 55 is integrally coupled to the arm holding body 64. . A male screw is formed on the outer periphery of the upper end of the arm connecting member 55. The male screw forming portion of the arm connecting member 55 is formed on the male screw 41 forming portion of the base base 40 of the example shown in FIGS. 4 to 6, and on the male screw 46 forming portion of the base 45 of the example shown in FIGS. Correspondingly, a gooseneck type microphone support arm is connected to the male thread forming portion by a connecting ring 26 as in the above-described conventional example. Since the configuration of the microphone support arm is the same as that of the above-described conventional example, description thereof is omitted.

The microphone mounting structure shown in FIGS. 10 to 12 has a structure in which the arm connecting member 55 itself is supported in a state of floating from a top plate such as a desk via an elastic support 63. This structure is called a shock mount, and a gooseneck type microphone support arm is connected to an arm connecting member 55 of the shock mount. Therefore, the effect of buffering vibration generated on a top plate such as a desk is large, and the effect of reducing noise generated by the microphone is also large.
However, according to the example of the conventional microphone mounting structure shown in FIGS. 10 to 12, the arm support 64 is supported on the inner peripheral side via the elastic support 63, and the cylindrical shape is provided on the inner peripheral side of the arm support 64. Since the shock mount structure supports the arm connecting member 55, the area occupied by the shock mount on the desk increases. In addition, the structure is complicated, the number of parts is large, the assembly is troublesome, and the cost is high.

  What can be said from the mounting structure of the conventional gooseneck type microphone described so far is that the area occupied on the desk should be as small as possible, that the configuration should be simple, the number of parts should be small, the assembly should be easy, and the cost should be low ,That's what it means. In addition, it is desirable that the elastic force or tightening force of the attachment portion can be varied according to the length of the gooseneck to be attached. That is, when the gooseneck is long, it is preferable that the elastic force of the attachment portion is strong (hard) so that the microphone does not tilt. When the gooseneck length is short, it is desirable that the elastic force of the attachment portion is weak (soft) in order to reduce vibration noise.

By the way, as an invention described in patent documents related to the present invention, a microphone stand in which a support pipe having a microphone unit attached to a tip can be arbitrarily adjusted including an angle, a direction, and a height, such as a table A base frame placed on the base, a sphere having a pipe insertion hole and holding a support pipe in the insertion hole, and supported in the base frame with the sphere fixed at an arbitrary rotational position The thing provided with the mount member to perform is known (for example, refer patent document 1).
Also, a microphone that can be mounted on a desk is known in which a quick mount type microphone can be attached to the microphone holder even if the microphone holder is a screw mount type (see, for example, Patent Document 2). .
The invention of the present application is related to the invention described in these patent documents in that it relates to a microphone mounting structure that is mounted on a desk. However, the invention has a different purpose from the invention described in these patent documents.

Japanese Patent Laid-Open No. 11-341756 JP 2000-102084 A

An object of the present invention is to provide a microphone mounting structure that occupies a small area on a desk, has a simple configuration, has a small number of parts, is easy to assemble, and is inexpensive.
The present invention is also capable of varying the elastic force or tightening force of the attachment portion according to various conditions such as the length of the arm to be attached, and freely adjusting the rotational position of the arm when attaching to the desk. An object of the present invention is to provide a microphone mounting structure that can be used.

As described in claim 1, the present invention provides a connecting member that can connect a base member that is mounted on a desk and a base end portion of an arm that is supported by the base member and supports the microphone on the distal end side. And an elastic member interposed between the base member and the connecting member. The elastic member is disposed so as to surround the connecting member and is fitted into a hole formed in the base member. It is the most important feature.
As described in claim 2, the base member may be configured to be attached to the desk with the fastening member while pressing the elastic member.

Due to the elastic member interposed between the base member and the connecting member, a frictional sound of a document, a collision sound of a writing instrument, a vibration, etc. are generated on the base member side, for example, a top plate such as a desk or table to which the base member is attached. However, the elastic member serves as a buffer material, and the transmission of the frictional sound, the collision sound, the vibration, and the like to the connecting portion is cut off, and noise is prevented from being generated in the microphone supported through the connecting member.
The above-described configuration including the base member, the coupling member, and the elastic member can provide a desktop installation type microphone that has a simple configuration, a small number of parts, is easy to assemble, and is low in cost. There is also an advantage that the installation area or the occupied area is small.

  According to the configuration described in claim 2, when the microphone is installed, the rotational position of the connecting member is adjusted in a state where the tightening force of the tightening member for tightening the base member to the top plate of the table is weak, and the rotational position is Since it is only necessary to increase the tightening force of the tightening member to make the connecting member non-rotatable at a fixed position, it is possible to easily adjust the rotation position of the microphone or the position of the cord drawing from the arm.

  Embodiments of a microphone mounting structure according to the present invention will be described below with reference to the drawings. The illustrated embodiment is a so-called gooseneck type microphone mounting structure in which a flexible pipe is used for an arm that supports the microphone, and the microphone can be directed in an arbitrary direction while bending the flexible pipe in an arbitrary direction. It can be done. The same components as those in the conventional example described in FIGS. 4 to 12 are denoted by the same reference numerals.

  1 to 3, a top plate 10 such as a desk or table to which a microphone is attached is provided with a hole 11 for passing a cord extending from the microphone. A base 40 is attached on the top plate 10 so as to overlap the hole 11. Reference numeral 15 denotes a base member that serves as a basis for installing a microphone on the top board 10. The base member 15 has a disk-like outer shape, and has a gently conical surface on the upper surface. A circular hole 17 is formed at the center, and the inward flange portion 16 is like a ridge above the hole 17. Is formed. The base member 15 is provided with attachment holes 18 at three locations. By screwing, for example, wood screws inserted into these attachment holes 18 into the top plate 10, the center of the hole 17 of the base member 15 and the top plate 10 are provided. The base member 15 can be fixed to the top plate 10 so as to coincide with the center of the hole 11.

  In the hole 17 of the base member 15, the elastic member 12 made of a planar ring-shaped rubber is fitted. The upper end surface of the elastic member 12 abuts on the inward flange portion 16 of the base member 15, and the relative positional relationship between the elastic member 12 and the base member 15 is restricted. The elastic member 12 is larger in the thickness direction, that is, in the central axis direction than the dimension in the central axis direction of the hole 17 of the base member 15 in a natural state, that is, in a state where no external force is applied. Therefore, the elastic member 12 and the base member 15 are arranged such that the lower end surface of the elastic member 12 is in contact with the upper surface of the top plate 10 such as a table and an appropriate gap is formed between the upper surface of the top plate 10 and the lower surface of the base member 15. The dimensional relationship is set. The elastic member 12 is also formed with a circumferential groove 13 at a substantially central portion in the thickness direction from the inner peripheral surface side toward the radially outer side.

  An outward flange portion 24 formed at the lower end of the cylindrical connecting member 20 is fitted in the circumferential groove 13 of the elastic member 12 using the elasticity of the elastic member 12. The width and depth of the circumferential groove 13 of the elastic member 12 are substantially the same as the thickness and the protruding dimension of the flange portion 24 of the connecting member 20. The connecting member 20 is for connecting the base end portion of the arm that supports the microphone, and a male screw 22 is formed on the outer peripheral surface. A flange portion 31 at the lower end of the connection tube 30 that forms the base of the microphone support arm is placed on the upper end of the connection member 20, and the connection ring 26 is screwed into the male screw 22 of the connection member 20, thereby connecting the connection tube 30 to the connection member 20. It is comprised so that it can connect to. More specifically, the connecting ring 26 is mainly composed of a cylindrical portion in which a female screw for screwing into the male screw 22 is formed, and has an inward flange portion 27 at an upper end portion, and the female screw is screwed into the male screw 22. Accordingly, the connecting pipe 30 is configured to be connected to the base member 20 in a state where the flange portion 27 of the connecting ring 26 presses the flange portion 31 of the connecting pipe 30 against the upper end of the base member 20.

  The lower end of the flexible pipe 32 is connected to the upper end of the connecting pipe 30, the lower end of the relay pipe 33 is connected to the upper end of the flexible pipe 32, and the lower end of the flexible pipe 34 is connected to the upper end of the relay pipe 33. The microphone holder 35 is connected to the upper end of the flexible pipe 34. The microphone holder 35 has a receiving portion 36 for attaching a microphone. The microphone holder 35 guides an output signal from the microphone to the outside when the microphone is attached to the receiving portion 36, and in the case of a condenser microphone, a microphone unit. Has a connector for supplying power. A cord is pulled out from the connector, and the cord passes through the flexible pipe 34, the relay pipe 33, the flexible pipe 32, the connecting pipe 30, the base member 20, and through the hole 11 of the top plate 10 to the outside. Alternatively, for example, a cord may be pulled out from a hole formed through the peripheral wall of the connecting pipe 30 and connected to a circuit unit or the like installed on the top plate 10.

  The connecting pipe 30, the flexible pipe 32, the relay pipe 33, the flexible pipe 34, and the microphone holder 35 constitute an arm that supports the microphone. In this arm, since the flexible pipes 34 and 32 exist between the base member 20 and the microphone holder 35, a so-called gooseneck type microphone is configured, and the flexible pipes 34 and 32 are bent in an arbitrary direction. Accordingly, the direction of the microphone attached to the holder 35 can be directed to an arbitrary direction. Note that the microphone support arm may omit the relay pipe 33, and may be configured entirely by a flexible pipe.

  A procedure for attaching the embodiment described above to the top plate 10 such as a table and an adjustment procedure will be described. By placing the lower end surface of the elastic member 12 on the top plate 10, the connecting member 20 to which the elastic member 12 is attached is disposed at a predetermined position on the top plate 10. The elastic member 12 is mounted on the connecting member 20 by surrounding the lower end portion of the connecting member 20 and fitting the flange portion 24 of the connecting member 20 into the circumferential groove 13 of the elastic member 12. Next, the base member 15 is arranged so that the connecting member 20 penetrates through the hole 17 and the outer periphery of the elastic member 12 fits into the peripheral wall of the hole 17, and wood screws or the like are inserted into the three attachment holes 18 of the base member 15. The fastening member is screwed into the top plate 10 through the fastening member. By this tightening, the inward flange portion 16 of the base member 15 presses the elastic member 12 against the top plate 10 from above, and the gap between the lower surface of the base member 15 and the upper surface of the top plate 10 is gradually narrowed.

  As shown in FIG. 3, a ring-shaped elastic body 19 is attached to the outer peripheral edge of the lower surface of the base member 15, and the elastic body 19 is placed in a gap between the lower surface of the base member 15 and the upper surface of the top plate 10. It may be interposed. The elastic body 19 is made of, for example, rubber that is compressed by tightening the base member 15 by the tightening member, and allows the base member 15 to be tightened. The base member 15 can be stably mounted on the top plate 10 through the elastic body 19.

  When the tightening force of the base member 15 by the tightening member is weak, the compressive force of the elastic member 12 is weak, and therefore the tightening force acting on the connecting member 20 is also weak, and the connecting member 20 rotates around the central axis with respect to the elastic member 12. Is possible. If the tightening force of the tightening member is increased, the elastic member 12 is greatly compressed by the base member 15, the tightening force acting on the connecting member 20 is increased, and the connecting member 20 cannot rotate with respect to the elastic member 12. The rotational position of the member 20 is determined. As described above, the base end portion of the microphone support arm including the connection pipe 30 and the flexible pipe 32 is connected to the connection member 20 by the connection ring 26. When the cord is pulled out from a part of the microphone support arm, the cord drawing direction needs to be a predetermined direction, and the microphone rotation position needs to be a predetermined position. According to the illustrated embodiment, the coupling member 20 is rotated around the central axis relative to the elastic member 12 by reducing the tightening force of the base member 15 by the tightening member, and the cord drawing position or the microphone The rotational position can be adjusted. After the adjustment, by increasing the tightening force of the base member 15 by the tightening member, the connecting member 20 cannot be rotated and the rotation position can be determined.

  In order to more effectively block the vibration of the top plate from being transmitted to the microphone in a state where the microphone is attached to the top plate or the like of the table by the mounting structure according to the present invention, the compression force of the elastic member 12 is weaker. desirable. Therefore, when a weak support force is sufficient, such as when the microphone support arm is short, the tightening force of the base member 15 may be weakened. When the length of the microphone support arm is long, the fastening force of the base member 15 is increased to increase the support force of the microphone support arm.

  According to the embodiment described above, the elastic member 12 serves as a cushioning material even when a frictional sound of a document, a collision sound of a writing instrument, vibration, or the like occurs on the top plate 10 such as a desk or table to which the base member 15 is attached. Thus, transmission of the frictional sound, collision sound, vibration and the like to the connecting member 20 is cut off, and noise is prevented from being generated in the microphone supported via the connecting member 20. A microphone mounting structure including the base member 15, the connecting member 20, and the elastic member 12 can be provided with a simple configuration, a small number of parts, an easy assembly, and a low-cost microphone mounting structure. Further, the microphone mounting structure configured as described above also has an advantage that an installation area or an occupied area is small.

  Since the base member 15 is configured to be mounted on the desk with the fastening member while pressing the elastic member 12, the fastening force of the fastening member for fastening the base member 15 to the table top 10 or the like is weak when the microphone is installed. Thus, the rotational position of the connecting member 20 is adjusted, and when the rotational position is determined, the tightening force of the tightening member is increased to make the connecting member 20 non-rotatable. Therefore, it is possible to easily adjust the rotational position of the microphone or the position where the cord is pulled out from the arm. There is also an advantage that the compression force of the elastic member 12 can be adjusted to a desired compression force by the tightening force of the base member 15.

  The present invention can be applied to a microphone of a type in which a microphone support arm is attached to a desk or the like, for example, a gooseneck type microphone, thereby effectively preventing the generation of noise due to external vibrations such as a desk. .

It is a partial cross section front view which shows the Example of the microphone attachment structure concerning this invention. It is an enlarged plan view which shows the principal part of the said Example. It is an expanded front sectional view which shows the principal part of the said Example. It is a partial cross section front view which shows the example of the conventional microphone attachment structure. It is a top view which shows the principal part of the said prior art example. It is front sectional drawing which shows the principal part of the said prior art example. It is a partial cross section front view which shows another example of the conventional microphone attachment structure. It is an enlarged plan view which shows the principal part of the said prior art example. It is an expanded front sectional view which shows the principal part of the said prior art example. It is a partial cross section front view which shows another example of the conventional microphone attachment structure. It is an enlarged plan view which shows the principal part of the said prior art example. It is an expanded front sectional view which shows the principal part of the said prior art example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Top plate, such as a desk 12 Elastic member 15 Base member 16 Inward flange part 17 Hole 20 Connecting member 22 Male screw

Claims (6)

A base member mounted on a desk;
A connecting member that is supported by the base member and that can connect the base end of the arm that supports the microphone on the distal end side;
An elastic member interposed between the base member and the connecting member,
The microphone mounting structure, wherein the elastic member is disposed so as to surround the connecting member and is fitted into a hole formed in the base member.   The microphone mounting structure according to claim 1, wherein the base member is mounted on the desk with a tightening member while pressing the elastic member.   3. The connecting member can rotate around the central axis with respect to the elastic member when the tightening force of the tightening member is weak, and the connecting member cannot rotate with respect to the elastic member when the tightening force of the tightening member is strong. The microphone mounting structure described.   The microphone mounting structure according to claim 1, wherein a male screw is formed on the outer periphery of the connecting member, and a base ring of the arm is connected to the connecting member by screwing a tightening ring into the male screw.   The microphone mounting structure according to claim 1, wherein the connecting member has an outward flange portion, and the flange portion is sandwiched between elastic members. The microphone mounting structure according to claim 1, wherein the arm has a flexible pipe.

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