| 摘要 |
PURPOSE:To easily replace and to rapidly improve the working efficiency of a loudspeaker by forming parallelly the plural track-shaped mounting holes at the each corner of a frame. CONSTITUTION:The track-shaped mounting holes 5, 6 are formed at each of the 4 corners of the frame 1 of the loudspeaker. The width of the plate in a space 7 between the adjacent holes, for example 5 and 6, and the width of the plate in a space 8 between the mounting hole, for example 5 and 6, and the periphery of the frame 1 are so formed that they are 1-3 times the thickness of the plate of the frame 1. By this constitution, the function part of the loudspeaker is set in a state as if it is suspended by the bars which has a width of 1-3 times the thickness of the plate of the frame. Therefore, if the loudspeaker is tightly attached to the uneven surface of the car body, the deformation of the speaker does not affect the function part of the speaker. Also, freedom of selection of mounting is largely widened, and there is no need for special treatment in installing and replacing the loudspeaker. |
