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    Self-supporting compactor
    5.
    发明授权
    Self-supporting compactor 失效
    自助式压缩机

    公开(公告)号：US3673931A

    公开(公告)日：1972-07-04

    申请号：US3673931D

    申请日：1970-08-10

    申请人： GARLINGHOUSE BROTHERS MFG CO

    发明人： DENING ROBERT D ,  GARLINGHOUSE LESLIE H

    IPC分类号： E02D3/046 ,  E01C19/22

    CPC分类号： E02D3/046

    摘要： A self-supporting compactor consisting of frame, a motor on the frame, and a compactor plate at the lower end of the frame driven by the motor. The compactor plate has a central shaft tiltably mounted in a thrust head with respect to the motor drive shaft and freely rotatable so that as rotated there is one area on the edge of the compactor plate which shifts progressively around the circumference as the plate is driven with a wobble motion, thereby to provide a compacting force on a surface to be compacted. A pair of long parallel shoes on diametrically opposite sides of the frame are pivotally mounted on the frame and temporarily locked in nonpivoting position while the compactor is at rest and when the operation is being started. Once compacting commences, the shoes are released and automatically pivot from a supporting position, but return automatically and momentarily to supporting position during the compacting operation thereby to prevent the compactor from bouncing out of control.