| 摘要 |
A piston-ring-installing device of the present invention includes a base ( 110 ) having a through-hole ( 111 ); a guide member ( 120 ) disposed in the through-hole and fixed to the base, for positioning a piston in the vertical direction while receiving a head of the piston suspended downwardly in the vertical direction, and guiding a piston ring while widening a diameter of the piston ring by an outer peripheral surface of the guide member; a piston pressing member ( 130 ) disposed above the base and supported movably toward a concave part ( 121 b) of the guide member, and having a tapered inner wall surface ( 131 ) widened downwardly so as to come into contact with an edge of an upper end of the piston; a driving mechanism ( 140 ) disposed on the base, the driving mechanism driving the piston pressing member at least in the vertical direction; and a ring feeding mechanism ( 150 ) that feeds the piston ring placed on the guide member upwardly. Hence, a piston-ring installing operation is swiftly performed, and productivity is improved.
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