| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a concrete vibrator having an oscillation body with shorter length so as to improve its workability thanks to the shape suited for a slab surface and weight saving. <P>SOLUTION: The oscillation body has a motor inside, a rotor in the motor installs an eccentric weight, the eccentric weight installs bearings on both sides, and the bearings support the rotor so that the rotor can rotate on the oscillation body. Meanwhile, on the side of the rotor having no eccentric weight the length of the concrete vibrator is reduced as a bearing-less structure. <P>COPYRIGHT: (C)2012,JPO&INPIT</p> |
