Patent ID: 8672097

Claim:
A lubrication device for a belt type continuously variable transmission, comprising: a belt type continuously variable transmission, comprising a drive pulley and a driven pulley, each of the drive pulley and the driven pulley including a fixed pulley half body and a movable pulley half body, an oil supply source, a nozzle tube communicating with the oil supply source, the nozzle tube being disposed between the drive pulley and the driven pulley along an axial direction of the drive pulley and the driven pulley, the nozzle tube including first and second oil spray holes for spraying oil toward V-shaped cross-section belt grooves of the drive pulley and driven pulley respectively, wherein the first oil spray hole is open toward a large-diameter portion of a belt contact face of the fixed pulley half body of the one of the drive pulley and the driven pulley that is positioned on an upstream side of the nozzle tube, wherein the second oil spray hole is open toward the belt groove of the other of the drive pulley and the driven pulley, at a position downstream of the nozzle tube relative to the first oil spray hole, wherein the first oil spray hole and the second oil spray hole are bored in the nozzle tube respectively in a direction perpendicular to an axis of the nozzle tube, wherein the first oil spray hole and the large-diameter portion of the belt contact face of the associated fixed pulley half body are located at a substantially same position in the axial direction of the nozzle tube, wherein an inner diameter of the nozzle tube is unchanged between the first and second oil spray holes, and wherein the nozzle tube has a first open end and a second open end which are respectively supported by a hole fully penetrating a first wall of the belt type continuously variable transmission and a hole partially penetrating a second wall of the belt type continuously variable transmission, the first open end communicating with the oil supply source, and the second open end being inserted into the hole partially penetrating the second wall.