Patent ID: 6585595
Filing Date: 2003-07-01
Classification: A63F,B06B,Y10T

Abstract:
A vibration generating device, comprising:a rotation shaft to be rotated about a center of rotation; a stationary weight mounted to the rotation shaft so that an eccentric state and direction thereof is fixed; and a movable weight mounted to the rotation shaft so that an eccentric position thereof moves radially outward and inward from said center of rotation in correspondence with a respective increase and decrease in the speed of rotation of the rotation shaft, wherein the movable weight protrudes outward from the center of rotation at an angle to the rotation shaft in a direction opposite from an eccentric direction of the stationary weight, and is connected to a forward end of a plate spring member whose angle with respect to the rotation shaft varies with elastic deformation, and wherein the weight of the movable weight is smaller than the weight of the stationary weight, and an eccentric state of the movable weight is set such that its moment of inertia around the rotation shaft is smaller than that of the stationary weight.