Vibrating tamper

Details Vibrating tamper Vibrating tamper

1978-04-13

1979-10-09

Byers, Jr., Nile C.

Road structure, process, or apparatus

Apparatus

Tamper

E01C 1935

Patent

active

041704274

ABSTRACT:
A vibrating tamper with side-by-side engine section and tamper section connected by a suspension system including leaf springs. The tamper section includes a reciprocating leg terminating in a tamping plate. The engine section includes handles, an engine with a rotary drive shaft, and a transmission for converting the drive shaft rotary motion to reciprocating motion to be imparted to the tamper. A driven, eccentrically mounted roller cooperates with a lever forked at one end to embrace the roller. At its other end, the lever applies reciprocating drive to the tamper. The reciprocating drive is applied through helical springs encircling the tamper leg. The forked lever end and eccentric assure that forces substantially parallel the axis of the tamper leg are transmitted to the tamper section, minimizing forces perpendicular the leg. The leaf springs permit only axial reciprocating movement of the leg back and forth along its longitudinal axis relative to the engine and they isolate much of the axial force from the engine section.

REFERENCES:
patent: 3109354 (1963-11-01), VanKirk
patent: 3386303 (1968-06-01), Curlett
patent: 3483805 (1969-12-01), Hirn
patent: 3603225 (1971-09-01), Buck
patent: 3856426 (1974-12-01), Waschulewski

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