| 摘要 |
At present, the acoustic speakers (speakers for hi/fi system) usually have small/medium sizes, and for listening are usually placed on shelves or on a suitable stands. The stands can be compared to pedestals, which besides supporting the speakers, they have the task to absorb or discharge on the ground the vibrations induced by the speakers or by environmental interferences; in this model, the speaker is placed on a supporting plate. The weight of the speaker and the mass of the support are of great importance for reducing the vibrations. The system proposes to minimize as much as possible the coming up of the vibrations, to fit best the speakers to the stands and to facilitate the overpass of the remaining vibrations to the floor. In this system conceived, the knock out of the vibrations occur by applying a vertical force on the speaker, which in opposition to what happens with the traditional stands, it's placed within two plates; the upper and lowers plates are attached with each other with four adjustable tie-rods. As traction increases, the pressure on the speakers will also increase. This system can produce the compression of the wood fibers that compose the speakers. We can compare this phenomenon to the weight applied on the speaker itself; this weight not only makes the speaker more heavy making it suitable for lowering down the vibrations, but it also imakes the speaker bound at its support; in this way the vibrations can be better discharged. The side of the plates which are in contact with the speakers have a layer made of an energy absorbing material. The rest of the system is composed from a abutment, one base and steel ends turned towards the pavement. |
