| 摘要 |
PURPOSE: A hinge cam for refrigerator is provided to minimize wear and friction deformation of the hinge cam by allowing lubrication oil to be directed to the contact surface between hinge cams during slide motion. CONSTITUTION: A hinge cam(30) includes a fixation section(32) to be fixed to the lower surface of a refrigerator door or the top surface of a hinge, and a rotation support section(34) protruded upwardly from the fixation section. The fixation section has a coupling hole(32a) for fixation to the refrigerator or hinge, and the rotation support section has a hinge hole(33) for insertion of a hinge axis. The rotation support section has three protrusions(36) with inclined surfaces(36a,36b,36a',36b'), and a groove(38) formed between adjacent protrusions. The hinge cam has a contact surface consisting of protrusions, groove, inclined surfaces, and a lubrication oil storing groove(40) formed along the circumferential direction of the contact surface of the hinge cam. The lubrication oil is fed to the contact surface, to thereby allow for smooth sliding motion.
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