Patent ID: 6280566
Filing Date: 2001-08-28
Classification: B29C,B29L,Y10S,Y10T

Abstract:
A vibration welding apparatus in which, in a state where joint portions of two synthetic resin parts are brought into contact with each other, one of said two synthetic resin parts is made to vibrate so that said joint portions are welded with each other, said vibration welding apparatus comprising:an upper jig for supporting one of two said synthetic resin parts;a lower jig for supporing the other of two said synthetic resin parts;a vibrating member to which said upper jig is attached;a plurality of head bolts screwed into a lower surface of said vibrating member;insertion holes formed in an attached portion of said upper jig, each of the insertion holes having a diameter larger than a diameter of a head portion of each of said bolts; andspacers with notches, each notch having a width smaller than the diameter of said head portion of each bolt and larger than a diameter of a shaft portion of each bolt, the spacers each having a width larger than the diameter of each of the insertion holes of said upper jig,wherein said head portions of said bolts are inserted into the insertion holes of said upper jig, the notches of said spacers are engaged with said shaft portions of said bolts between said attached portion of said upper jig and said head portions of said bolts, and said bolts are fastened to said vibrating member in the state where the notches are engaged with said shaft portions, so that said attached portion is fastened through said spacers by said head portions of said bolts and said vibrating member, to thereby attached said upper jig to said vibrating member.