| abstract |
In a valve-operating assembly of a driven rotation membernand a cam, including a hub (30) rotatably carried on a support shaft,na cam (24) formed on an outer periphery of one end of the hub, andna driven rotation member (25) coupled to one end of the cam; the camnand the hub are integrally formed of a sintered alloy; the camnhas a recess defined in one end face thereof; and the drivennrotation member is made of a synthetic resin, and mold-couplednto the cam and the hub so that the recess is filled with thensynthetic resin of the driven rotation member and an outernperiphery of the hub is wrapped with the synthetic resin. Thus,nit is possible to provide the valve-operating assembly of thendriven rotation member and the cam, which is lightweight andnexcellent in lubrication of the cam and the hub. |