Patent ID: 7370739
Filing Date: 2008-05-13
Classification: F16F

Abstract:
1. A shock absorber comprising: a main tube having one end closed; a rod having one end inserted within the main tube for motion in its longitudinal direction; a first conductive element mounted on an outer peripheral surface of the rod; and a second conductive element mounted within the main tube and coupled electrically with the first conductive element in such a manner to allow transmission of electric power therebetween, the main tube including: wherein: at least one of the first conductive element and the second conductive element extends along a path of the motion of the rod, to hold the electrical coupling between the first conductive element and the second conductive element; the first conductive element and the second conductive element are in sliding contact with each other; one of the conductive elements is a brush; the other conductive element is an electrode plate extending along the path of the motion of the rod; the main tube includes an end cap at its other end; the end cap includes a portion defining a through bore in sliding contact with the rod and a portion defining a recess in an inner surface of the through bore; the brush is mounted in the recess; and the electrode plate is located on the outer peripheral surface of the rod and extending longitudinally so as to keep in contact with the brush.