Patent ID: 7059802
Filing Date: 2006-06-13
Classification: E01C,E02D,Y10T

Abstract:
1. An exciter assembly for a vibratory roller, comprising: (A) an exciter housing; (B) an exciter shaft rotatably journaled in said exciter housing; (C) a fixed eccentric weight rotationally fixed to said exciter shaft; (D) a free swinging eccentric weight mounted on said exciter shaft so as to rotate with respect to said exciter shaft between 1) a first angular position in which the eccentricity of said free swinging eccentric weight adds to the eccentricity of said fixed eccentric weight and 2) a second angular position in which the eccentricity of said free swinging eccentric weight detracts from the eccentricity of said fixed eccentric weight, wherein said free swinging eccentric weight is mounted on said exciter shaft so as to be restrained from substantial axial movement along said exciter shaft without the use of any retaining structure that is fixed to said free swinging eccentric weight, wherein said free swinging eccentric weight is sandwiched between a first end of said fixed eccentric weight and a component comprising one of a torque transfer element and a bearing and is restrained from substantial axial movement along said exciter shaft solely by said first end of said fixed eccentric weight and said component.