Patent Application
20090136073
1. Field of the Invention
The present invention relates to a microphone for use with a communication device, and more particularly, to a microphone that has a brace for securely holding a printed circuit board thereof in place.
2. Description of the Related Art
Referring to
The primary problem associated with the microphone 9 is that the first shell 91 is usually made compact and it is thus difficult to securely attach the PCB 911. Thus if a user pulls the cord 912 accidentally, the PCB 911 may be jolted upward toward and then mis-actuated by the push button 93 by such a sudden force.
The present invention is, therefore, intended to obviate or at least alleviate the problems encountered in the prior art.
It is an object of the present invention to provide a microphone that prevents a PCB therein from being jolted and then mis-actuated while still remaining in a compact structure.
It is also object of the present invention to provide a microphone that has a push button stably fixed thereto and stably operably moveable.
Accordingly, the present invention discloses a microphone comprising a first shell having a cavity region. A PCB and a sound receiving member are mounted within the cavity region. A brace is disposed over the cavity region having opposite ribs located against two opposite sides of the PCB. A push button is operably mounted on the brace and is adapted to be moveably operated to actuate the PCB ON or OFF.
The brace comprises two orifices, and the push button has two hooks inserted into the orifices respectively. The brace further comprises two opposite protrusions formed adjacent at each orifice such that each hook is moved between two protrusions when push button is moveably operated. Additionally, a cross member extends between the two protrusions and each hook is stably engagable thereto.
Other objectives, advantages, and novel features of the invention will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings.
Referring to
A brace 20 is disposed over the cavity region and includes side walls and a rear wall 22 extending between the side walls. A clipping portion 23 is formed on each side wall and is complemently engagable with the associated clipping portion 15 of the first shell 10. A position limiter 21 is formed on the rear wall 22 and is provided for retaining the sound receiving member 14 in position. In this embodiment, the position limiter 21 is of a configuration which has a wall radially surrounds the sound receiving member 14. Moreover, two ribs 225 are formed on the side walls respectively.
A push button 30 is operably mounted on the brace 20. The push button 30 includes a first side having a protuberance 33 and two hooks 32 equally spaced from the protuberance 33. The protuberance 33 is insertable through a hole 221 disposed between the ribs 225, and the hooks 32 are insertable through respective offices 222 and moveable between two oppositely disposed protrusions 223 and engagable with a respective cross member 224 extending between the protrusions 223. As a result, the push button 30 is prevented from disengaging from the brace 20. The push button 30 further includes a pressing face 31 formed at a second side thereof.
A second shell 40 is disposed over the brace 20 and includes a first body 41 engaged with the first shell 10 and a second body 42 complemently received in a cutout hole 411 formed on the first body 41. In addition, the second body 42 has a sound aperture 421 communicating with the sound receiving member 14 and an opening 422 which allows the push button 30 to expose out of the second shell 40
Referring to
While the specific embodiments have been illustrated and described, numerous modifications come to mind without significantly departing from the spirit of invention and the scope of invention is only limited by the scope of accompanying claims.
