Item of jewelry

作者: Karl Burth , Dieter Luz , Martin Heinz

DOI:

关键词: FastenerReciprocating motionMechanical engineeringEngineeringEngineering drawing

摘要: The invention relates to an item of jewelry, comprising a fastener (2), outer part (3), and inner (4) rotatable therein. can move in reciprocating manner relative the part, entrainment means (5) is provided between order rotate one direction when certain movements are made.