Patent ID: 7182200
Filing Date: 2007-02-27
Classification: B65G

Abstract:
1. A piezo-driven parts feeder that conveys parts by generating vibration with a vibration generator including an elastic member having a piezoelectric element mounted thereto to align the parts, comprising: a moving table having or supporting the parts conveying member; a fixed table disposed below the moving table, for supporting the moving table so as to freely vibrate the moving table through the vibration generator; the vibration generator including a first elastic member and a piezoelectric element mounted to the first elastic member, one end of the first elastic member being fixed to the moving table and the other end of the first elastic member being fixed to the fixed table; and a support member including a second elastic member different from the first elastic member, one end of the second elastic member being fixed to the moving table and the other end of the second elastic member being fixed to the fixed table, wherein the parts conveying track includes a spiral part, the first elastic member is formed approximately in L-shape and arranged almost horizontally between the upper moving table and the lower fixed table, and wherein a first side of the L-shape extends toward the center of the fixed table, the end of the extending side being fixed to the fixed table, and a second side of the L-shape is fixed to the moving table.