JPH0535679Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field of the Invention] This invention relates to a microphone, and more specifically, to a switch device attached to a microphone body that turns on and off a microphone output.

[Technical background of the invention] Generally, many microphones are equipped with a manual switch for turning on and off the microphone output of the microphone body. This switch is convenient because it allows the speaker to freely turn on and off the microphone output at meetings and the like. Furthermore, in a type of microphone that uses a battery to obtain output, such as an electret condenser microphone, the switch is turned off when not in use to prevent battery consumption.

However, such switches may turn off unexpectedly while in use, or the user may not understand where the switch is or how to turn it on. need to be handed over. Conventionally, in such cases,
After the switch was turned on, vinyl tape was wrapped around the switch to prevent the user from operating the switch. However, if such a situation is always assumed, the vinyl tape must be carried around at all times, which is inconvenient. Therefore, we installed a fixing member with one end fixed with a screw on the microphone body at the rear of the switch's operation knob, so that when the switch is turned on,
A method has been proposed in which the fixing member is turned half a turn and the operating knob of the switch is fixed at the tip thereof. By loosening the screw, the fixing member becomes rotatable, so that it is disengaged from the operating knob and can be freely operated. However, there is a drawback that a tool is always required to fix the switch, and the switch cannot be easily set or reset.

[Purpose of the invention] The purpose of the invention is to provide a switch device with a simple structure that allows the microphone body to be turned on and off arbitrarily and extremely easily without the need for tools or the like. .

[Structure of the invention] The microphone switch device of this invention is provided with a slide switch operating knob that turns on and off the microphone output so as to be movable in the axial direction of the microphone casing, and a switch that is rotatable in the circumferential direction on the microphone body. A cam ring fixed in the axial direction is fitted, and a cam edge is formed on the edge of the cam ring on the operation knob side to move the operation knob from the OFF position to the ON position by rotation of the cam ring. Features.

[Embodiment] Hereinafter, an embodiment of this invention shown in the drawings will be described. At the rear edge of the hollow cylindrical microphone case 2 to which the windscreen 1 is attached at the tip, there is an inner cylinder having a smaller diameter than the microphone case 2. 3 is provided. A microphone unit 4 is provided within the microphone case 2, and a switch 6 having a slide knob 5 is attached to the inner cylinder 3. The slide knob 5 projects outward from a long hole 7 that extends in the axial direction of the inner cylinder 3. A rear cylindrical body 8 whose outer circumferential surface is substantially equal to the outer circumferential surface of the microphone case 2 is threadedly fitted to the rear end of the internal cylinder 3. Microphone case 2
A cam ring 9 whose outer circumferential surface is approximately equal to the outer circumferential surface of the rear cylindrical body 8 is fitted into the inner cylinder 3 between the rear end and the tip of the rear cylindrical body 8 so as to be rotatable in the circumferential direction.

As shown in FIG. 3, the cam ring 9 has three cam surfaces 10, 1 on the edge located on the slide knob side.
1 and 12 are formed continuously. Cam surface 10
is for positioning the slide knob 5 in the off position, the cam surface 11 is for positioning the slide knob 5 in the on position, and the cam surface 12 is for positioning the slide knob 5 in the on position.
forms an inclined cam connecting the two cam surfaces 10 and 11.

Assuming that the position of the slide knob 5 shown in FIG. 1 is the on position of the switch 6, the slide knob 5 is fixed in the on position by the cam surface 11 by rotating the cam ring 9 approximately 180 degrees from the state shown in the figure. Ru. If you want to turn off the switch 6 from this state, rotate the cam ring 9 further by 180 degrees, and the rear end of the slide knob 5 will face the cam surface 10 with a gap, so at this time, turn the slide knob 5 with your finger. Just slide it to the off position. When the slide knob 5 is in the off position, it may be slid to the on position with a finger, but by rotating the cam ring 9, the rear end of the slide knob 5 is gradually moved to the on position by the inclined cam surface 11. Move to cam surface 1
1, it is automatically fixed in the on position. In addition,
If the slide knob 5 is always biased to the off position by a spring or the like, the switch 6 can be turned on or off by rotating the cam ring 9.

[Effects of the invention] As described above, the microphone switch device of this invention can fix the slide knob 5 of the switch 6 in the on position simply by rotating the cam ring 9. Furthermore, when turning off the switch 6, the slide knob 5 can be operated with an extremely simple operation of turning the cam ring 9 by half a turn.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing an embodiment of this invention;
FIG. 2 is a sectional view thereof, and FIG. 3 is a perspective view showing the slide knob. In the drawing, 2 is a microphone case, 3 is an internal cylinder, 5 is a slide knob, 6 is a switch, and 8
is the rear cylinder, 9 is the cam ring, 10, 11, 12
are respectively cam surfaces.

Claims (1)

[Scope of utility model registration request] A microphone having a manually operable slide switch for turning on and off the output of the microphone in a cylindrical casing having a sound collecting section at the tip, wherein the operation knob of the slide switch is provided so as to be movable in the axial direction of the casing. , a cam ring that is rotatable in the circumferential direction and fixed in the axial direction is fitted to the outer peripheral surface of the microphone body;
A microphone switch device characterized in that a cam edge for moving the operating knob from an OFF position to an ON position by rotation of the cam ring is formed on an edge of the cam ring on the operating knob side.