JP5056703B2 - Microphone and microphone hanger hook - Google Patents

Description

  The present invention relates to a microphone and a microphone hanger hook provided in a communication device.

  Conventionally, as a hanger switch for detecting that a microphone is suspended from a hanger hook, a microphone on which a circuit board for detection and a conductive hanger knob are attached, and a metal hanger hook connected to the ground Some of them are composed of In such a hanger switch, the circuit board is electrically connected to the hanger hook via the hanger knob, thereby detecting that the microphone is suspended on the hanger hook.

  In the above-described microphone hanger switch, wiring for extending the hanger hook to connect the hanger hook to the ground is obstructive, and it takes time to install the hanger hook. Therefore, there is a device that eliminates this wiring, obstructs the wiring, and eliminates the trouble of wiring when installing the hanger hook.

  For example, in Patent Document 1, electrical connection between the first contact of the circuit board and the hanger plate is performed by a spring pin that presses the first contact, and electrical connection between the second contact of the circuit board and the hanger knob is performed. Introducing a microphone hanger switch that uses a leaf spring to press the second contact, eliminates the soldering process during microphone assembly, and allows the rear case to be completely separated from the front case during maintenance work. ing.

  Further, in Patent Document 1, the hanger plate is constituted by a hanger spring in which an elastic pressing portion is formed in a spherical shape on each substantially cross-shaped arm, and a hanger plate body for protecting the microphone from impact. When the hanger plate part is used and the microphone is suspended from the hanger hook, at least two of the four contact points provided on the hanger plate come into contact with each other, and the feeling of wear and durability when the hanger knob is suspended from the hanger hook. A microphone hanger switch with improved performance is introduced.

  Also, in Patent Document 2, a spring plate is provided on the surface of the hanger plate so that the microphone is fixed when the microphone is hung on a metal engaging portion in an automobile or the like, and further engaged against sudden vibration. Microphone hanger switches with a low risk of being removed from the club are introduced.

  However, the above-described prior art has the following problems.

  In the microphone hanger switch proposed in Patent Documents 1 and 2, the shape of the hanger plate is complicated, and in particular, the hanger plate in Patent Document 1 has a two-part configuration, so that the mold used for manufacturing the hanger plate is expensive. It becomes. Further, the protrusions such as the elastic pressing portion and the spring plate are provided on the hanger plate, thereby causing problems such as a foreign object feeling when the microphone is held by hand and restrictions on the design of the microphone.

JP 2003-224897 A JP 2001-160993 A

  The present invention has been made in view of such problems, and an object thereof is to provide a microphone and a microphone hanger hook that do not require ground wiring.

  In order to achieve the above object, a microphone according to a first aspect of the present invention includes a non-conductive microphone case, a conductive hanger plate provided on an outer surface of the microphone case, and the hanger plate on the microphone case. A conductive hanger knob insulated from the conductive hanger hook that suspends the microphone case via the hanger knob, the hanger hook is set to a predetermined voltage, A hanger member formed with a notch for locking the hanger knob, a first elastic member for biasing the hanger knob locked to the notch in a direction to push it back toward the hanger member, and the hanger When the knob is locked to the notch, the hanger plate is moved away from the hanger member. And the second elastic member is disposed so as to protrude from a hole formed in the hanger member, and protrudes through the hole and contacts the hanger plate. It is characterized by doing.

  Furthermore, in the microphone according to the present invention, the first and second elastic members may be conductive leaf springs.

  Further, in the microphone according to the present invention, a recess may be formed on the head of the hanger knob, and a protrusion that fits into the recess may be formed on a leaf spring that constitutes the first elastic member.

  Furthermore, the microphone according to the present invention includes a circuit board provided in the microphone case, a first conductive member that electrically connects the hanger knob and the first contact on the circuit board, and the hanger plate. And a second conductive member that electrically connects the second contact on the circuit board.

  Furthermore, the circuit board may include a determining unit that determines whether the microphone is suspended from the hanger knob based on the voltage of the first contact and the voltage of the second contact.

  Further, the first conductive member connects the first contact of the circuit board and a terminal provided on the inner surface of the microphone case, and the hanger knob via a hole provided in the microphone case. And a conductive screw that connects the terminal and the hanger knob by being fastened together.

  Further, the second conductive member is a conductive spring penetrating a hole formed in the microphone case, and the spring is compressed and has one end abutting against the second contact of the circuit board. The other end may be in contact with the hanger plate.

  The microphone hanger hook according to the second aspect of the present invention is set to a predetermined voltage, suspends the microphone through the hanger knob, and sets the hanger knob and the hanger plate disposed on the microphone to the predetermined voltage. A conductive hanger hook for setting, a hanger member formed with a notch for locking the hanger knob, and a direction in which the hanger knob locked to the notch is pushed back toward the hanger member A first elastic member for urging the hanger plate, and a second elastic member for urging the hanger plate in a direction away from the hanger member when the hanger knob is locked to the notch, The second elastic member is arranged so as to protrude from the hole formed in the hanger member, and protrudes through the hole and moves forward. Contacting the hanger plate, and wherein the.

  According to the present invention, it is possible to provide a microphone and a microphone hanger hook that do not require ground wiring.

  Hereinafter, a microphone and a microphone hanger hook according to an embodiment of the present invention will be described with reference to the drawings.

  FIG. 1 is a perspective view showing a microphone according to the present embodiment. As shown in FIG. 1, when the microphone 1 is connected to the communication device main body via the cord 3 and a press talk switch 17 provided on the side surface of the microphone case 11 constituted by the front case 112 and the rear case 111 is pressed. Communication is possible.

  2A is a perspective view showing the structure of the microphone in the microphone of the present embodiment, and FIG. 2B is a perspective view of the hanger hook disassembled in the microphone hanger hook of the present embodiment.

  As shown in FIG. 2A, the microphone 1 with the front case 112 removed includes a rear case 111, a weight 12, a circuit board 13, a spring 14, a hanger plate 15, and a hanger knob 16. Has been.

  The rear case 111 is made of a non-conductive material and has a hole 111a through which a screw 134 described later is inserted and a hole 111b through which the spring 14 is inserted.

  The weight 12 is formed from a plate-like metal. The weight 12 is provided to give the microphone 1 a feeling of weight, and is attached to the front surface of the rear case 111. The weight 12 has a hole 12a through which the spring 14 is inserted.

  The circuit board 13 is attached to the rear case 111 with the weight 12 interposed therebetween. The circuit board 13 is connected to a connector 131 used for power supply from the outside and signal transmission from the microphone. Further, the lug terminal 132 is electrically connected to the first contact 135 of the circuit board 13 by the hanger line 133. A conductive screw 134 is inserted into the hole 111 a provided in the rear case 111 and fastened to the hanger knob 16. Thereby, the lug terminal 132 and the hanger knob 16 are electrically connected to each other. A second contact 136 constituting a part of the hanger switch circuit is formed on the back surface of the circuit board 13 with a solder film or the like.

  The spring 14 is formed from a conductive coil spring. The spring 14 is inserted through the hole 12 a of the weight and the hole 111 b of the rear case 111. The spring 14 is in a compressed state when the circuit board 13 is attached to the rear case 111. The front end of the spring 14 presses the second contact 136 on the back surface of the circuit board 13, and the rear end presses the front surface of the hanger plate 15. For this reason, the second contact 136 and the hanger plate 15 are electrically connected via the spring 14.

  The hanger plate 15 is formed of a flat conductive material and is attached to the back surface of the rear case 111. The hanger plate 15 has a hole 15 a having a diameter larger than the outer diameter of the shaft portion 16 a of the hanger knob 16. The hole 15 a is located at a place where the hanger plate 15 overlaps the hole 111 a of the rear case 111 when the hanger plate 15 is attached to the rear case 111.

  The hanger knob 16 is made of metal, and includes a shaft portion 16 a and a flange portion 16 b that faces the hanger plate 15. Since the outer diameter of the shaft portion 16 a is larger than the diameter of the hole 15 a of the rear case 111, the hanger knob 16 is inserted through the hole 15 a without contacting the hanger plate 15. Therefore, the hanger knob 16 is fixed to the back surface of the rear case 111 with screws 134 while being electrically insulated from the hanger plate 15. The flange portion 16b has a recess 16c that fits into a protrusion 222a of the first elastic member 222 of the hanger hook 2 described later.

  As shown in FIG. 2B, the hanger hook 2 is composed of a base portion 21 and a spring portion 22.

  The base portion 21 is provided between the two fixing surfaces 211 for fixing the hanger hook 2 and the two fixing surfaces 211, and protrudes in a substantially U shape in a longitudinal section with respect to these fixing surfaces 211. And a projecting surface 212. A U-shaped notch 213 a is formed on the protruding surface 212 protruding in a substantially U shape from the hanger surface 213 protruding from the fixed surface 211. Further, the hanger surface 213 is formed with two quadrangular holes 213b through which the second elastic member is inserted with a U-shaped notch 213a interposed therebetween. Each of the two fixing surfaces 211 has a hole 211a used for fixing the hanger hook 2. In addition, a protrusion 211 b that protrudes toward the back surface is formed on the upper surface of the two fixed surfaces 211.

  In the spring portion 22, a fixing surface 221 for fixing the hanger hook 2, a first elastic member 222, and two second elastic members 223 sandwiching the first elastic member 222 are integrated. Is formed. The fixing surface 221 has a hole 221 a used for fixing the hanger hook 2. The fixing surface 221 has two holes 221b into which the protrusions 211b of the base portion 21 are fitted. By fitting the protrusion 211b into the hole 221b, the base portion 21 and the spring portion 22 are correctly combined. The first elastic member 222 extends from the fixed surface 221 toward the hanger surface 213, and has a protrusion 222a at the tip. The second elastic member 223 extends from the fixed surface 221 toward the hanger surface 213 and is mountain-folded at a predetermined position.

  3A and 3B are a perspective view and a front view of the hanger hook 2 formed by assembling the base portion 21 and the spring portion 22, respectively. The hanger hook 2 is assembled by fitting the protrusion 211b of the base portion 21 into the hole 221b of the spring portion 22, and is fixed to a wall or the like by inserting a screw (not shown) through the hole 211a and the hole 221a. The first elastic member 222 is located inside the space formed by the protruding surface 212. The bent portion of the second elastic member 223 is inserted through the hole 213 b of the hanger surface 213, and the tip thereof is located inside the space formed by the protruding surface 212.

  4A is a cross-sectional view of a main part taken along a cutting line II in FIG. 3B when the microphone 1 is suspended from the hanger hook 2, and FIG. 4B is a cross-sectional view of the microphone 1 attached to the hanger hook 2. It is sectional drawing of the principal part in the cutting line II-II of FIG. As shown in FIG. 4A, the hanger knob 16 provided on the back surface of the microphone 1 is inserted into the notch 213a, and the flange portion 16b is suspended from the lowermost end of the notch 213a. Then, the microphone 1 is strongly latched by the repulsive force of the first elastic member 222 and the fitting of the recess 16c provided in the flange portion 16b with the protrusion 222a at the tip of the first elastic member 222. Further, as shown in FIG. 4B, the second elastic member 223 provided on the hanger hook 2 presses the hanger plate 15 by a repulsive force at the position where the mountain is folded. Here, the hanger plate 15 is pressed in line with the mountain fold portion of the second elastic member 223 and the hanger knob 16 pressed by the first elastic member 222. Thereby, the hooking of the microphone 1 to the hanger hook 2 is strengthened, and the microphone 1 can be held at three points with a uniform force. Therefore, even when the microphone 1 receives vibration or rotates, there is little risk of coming off from the hanger hook 2.

Next, the operation of the microphone hanger switch according to the present embodiment will be described. When the microphone 1 is suspended from the hanger hook 2, the second elastic member 223 comes into contact with the hanger plate 15, so that the hanger knob 16 and the hanger plate 15 become conductive through the hanger hook 2. The circuit board 13 is electrically connected to the hanger knob 16 via a screw 134, a lug terminal 132, and a hanger line 133. Further, the circuit board 13 is electrically connected to the hanger plate 15 via the spring 14.
As shown in FIG. 5, in the circuit board 13, the hanger plate 15 and the hanger knob 16 are pulled up by a resistor R, and the circuit board 13 is connected to the first contact 135 and the second contact 136. The detection part 13a is provided.
When the microphone 1 is removed from the hanger hook 2, the first contact 135 and the second contact 136 are pulled up by the resistor R, and the detection unit 13 a is connected to the first contact 135 and the second contact 136. By detecting the power supply voltage Vcc, it can be detected that the microphone 1 is removed from the hanger hook 2. When the microphone 1 is set on the hanger hook 2, the first contact 135 and the second contact 136 are grounded, and the detection unit 13 a detects the ground voltage Vgnd at the first contact 135 and the second contact 136. Thus, it can be detected that the microphone 1 is suspended from the hanger hook 2. The detection unit 13a sends a signal indicating the detected state from the connector 131 to the communication device body (not shown) via the cord 3.

  In the present embodiment, the circuit board 13 can detect the suspension of the microphone 1 on the hanger hook 2 due to the structure of the microphone 1, thereby eliminating the ground wiring. In addition, as described above, the second elastic member 223 pushes the hanger plate 15 by a repulsive force at the position where the second elastic member is folded, and is further aligned with the hanger knob 16 supported by the first elastic member 222. Line up and touch the hanger plate 15. Therefore, the hooking of the microphone 1 with respect to the hanger hook 2 becomes strong, and the microphone 1 can be held at three points with a uniform force. Therefore, even when the microphone 1 receives vibration or rotates, the conduction due to the contact between the hanger plate 15 and the hanger hook 2 and the conduction due to the fitting between the hanger knob 16 and the hanger hook 2 are stably maintained.

  In the present embodiment, since the hanger plate 15 is flat, there is no foreign object feeling when the microphone 1 is held by hand compared to the case where the hanger plate has protrusions, and there are design restrictions. Few.

  In the present embodiment, the fulcrum of the second elastic member 223 is located on the back surface of the hanger surface 213. Therefore, the movable range of the second elastic member 223 can be made larger than the case where the second elastic member 223 is disposed on the front surface of the hanger surface 213 and the fulcrum of the second elastic member 223 is positioned on the front surface. it can. Thereby, it becomes easy to adjust the force with which the second elastic member 223 presses the hanger plate 15.

  Further, in the present embodiment, the second elastic member 223 has only a mountain fold portion contacting the hanger plate 15 protruding from the hole 213b of the hanger surface 213. Therefore, the end of the second elastic member 223 is not exposed, and it is difficult to hurt the hand when hanging the microphone or installing the hanger hook.

  In the present embodiment, the base portion 21 and the spring portion 22 are assembled by fitting the protrusion 211b of the base portion 21 into the hole 221b of the spring portion 22, but the base portion 21 and the spring portion are formed. You may fix by screwing screw holes.

It is a perspective view which shows the microphone of this embodiment. (A) is a perspective view which shows the structure of the microphone of this embodiment, (b) is a perspective view of the disassembled hanger hook. (A) is a perspective view which shows the hanger hook of this embodiment, (b) is a front view. FIG. 3A is a schematic cross-sectional view of a main part taken along a cutting line II in FIG. 3B when the microphone of the present embodiment is suspended from a hanger hook, and FIG. 3B is a main part taken along a cutting line II-II. FIG. It is a circuit diagram of the circuit board in the microphone of this embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Microphone 2 Hanger hook 3 Code | symbol 11 Microphone case 111 Rear case 111a hole 111b hole 112 Front case 12 Weight 12a hole 13 Circuit board 13a Detection part 131 Connector 132 Lug terminal 133 Hanger line 134 Screw 135 First contact 136 Second contact 14 Spring DESCRIPTION OF SYMBOLS 15 Hanger plate 15a Hole 16 Hanger knob 16a Shaft part 16b Flange part 16c Recess 17 Press talk switch 21 Base part 211 Fixing surface 211a Hole 211b Projection 212 Projection surface 213 Hanger surface 213a Notch 213b Hole 22 Spring part 221b Fixing surface 221b Hole 222 First elastic member 222a Protrusion 223 Second elastic member

Claims (8)

A non-conductive microphone case;
A conductive hanger plate provided on the outer surface of the microphone case;
A conductive hanger knob provided insulated from the hanger plate in the microphone case;
A conductive hanger hook that suspends the microphone case via the hanger knob, and
The hanger hook is set to a predetermined voltage,
A hanger member formed with a notch for locking the hanger knob;
A first elastic member for urging the hanger knob locked to the notch in a direction to push it back toward the hanger member; and when the hanger knob is locked to the notch, A second elastic member that urges in a direction away from the hanger member,
The microphone is characterized in that the second elastic member is arranged so as to protrude from a hole formed in the hanger member, and protrudes through the hole and contacts the hanger plate.   The microphone according to claim 1, wherein the first and second elastic members are conductive leaf springs.   The concave part is formed in the head of the hanger knob, and the protrusion which fits into the concave part is formed in the leaf | plate spring which comprises the said 1st elastic member, The Claim 2 characterized by the above-mentioned. Microphone. A circuit board provided inside the microphone case;
A first conductive member that electrically connects the hanger knob and the first contact on the circuit board;
A second conductive member that electrically connects the hanger plate and the second contact on the circuit board;
The microphone according to any one of claims 1 to 3, further comprising:   The circuit board includes a determination unit that determines whether the microphone is suspended from the hanger knob based on the voltage of the first contact and the voltage of the second contact. Item 5. The microphone according to item 4. The first conductive member is
Wiring for connecting the first contact of the circuit board and a terminal provided on the inner surface of the microphone case;
A conductive screw that connects the terminal and the hanger knob by being fastened to the hanger knob via a hole provided in the microphone case;
The microphone according to claim 4 or 5, characterized by comprising: The second conductive member is
A conductive spring penetrating a hole formed in the microphone case;
7. The microphone according to claim 4, wherein one end of the spring is in contact with the second contact of the circuit board and the other end is in contact with the hanger plate in a compressed state. . A conductive hanger hook that is set to a predetermined voltage, suspends the microphone through the hanger knob, and sets the hanger knob and the hanger plate disposed on the microphone to a predetermined voltage,
A hanger member formed with a notch for locking the hanger knob;
A first elastic member for urging the hanger knob locked to the notch in a direction to push it back toward the hanger member; and when the hanger knob is locked to the notch, A second elastic member that urges in a direction away from the hanger member,
The microphone hanger hook, wherein the second elastic member is disposed so as to protrude from a hole formed in the hanger member, and protrudes through the hole to contact the hanger plate.

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