| 摘要 |
PURPOSE:To easily compact top concrete by effectively utilizing narrow space by using a long vibrator which can be optionally adjudged for its longitudinal, slewing and vertical directions by a handle. CONSTITUTION:A long vibrator 40, which is set in the upper concrete charge port or a manhole 57 of a formwork 54 for an inverted lining work and serves to compact the top 56 of concrete 55 in the formwork 54, is provided with a supporting base 1, a slide mechanism 2, and a pivotal supporting pin 13 provided between the base 1 and the mechanism 2, serving to vertically move a vibrator 40 in a rocking manner. A turnable hinge 14 is provided to the supporting base 1 to enable the vibrator 40 to turn in the horizontal direction. The top of the concrete in the inverted lining work can thus be easily compacted. |
