| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an OA apparatus capable of inexpensively suppressing the generation of chattering noise by causing a mounted cover to generate an internal stress. <P>SOLUTION: The OA apparatus includes a noise generation source in the inside thereof, and a cover member to be fixed at a plurality of parts of the periphery of a housing. Even if a cover 1A is a twisted flat plate under a free state, when being fixed at the plurality of positions, the cover 1A is flattened and mounted so as to generate the internal stress. Thereby, the OA apparatus even including the noise generation source in its inside, can reduce the generation of the chattering noise and the like by damping vibration of the cover 1A, and moreover the mounted cover 1A is located on the flat plate so as to have no problem of external appearance. <P>COPYRIGHT: (C)2013,JPO&INPIT |
