Patent ID: 7637300

Claim:
A vibration welding apparatus for executing vibration welding of at least a first work piece and a plurality of second work pieces made of a thermoplastic material to make said first work piece and said plurality of second work pieces integral in a sandwich shape, comprising: an upper tool capable of supporting said first work piece so as to apply a lateral vibratory motion to said first work piece by a vibrator; a lower tool capable of supporting said plurality of second work pieces to be welded to at least two surfaces of said first work piece, an elevator capable of actuating said lower tool to move said plurality of second work pieces in a vertical direction so as to align with said first work piece, and a slide actuator capable of moving said lower tool such that said plurality of second work pieces move toward said first work piece in opposite lateral directions to approach each other and to bring said plurality of second work pieces into contact with said first work piece.