PURPOSE: To permit continuous automatic assembling by a method wherein a pair of adaptor members are attached to a net continuously and the net is cut at jointing parts on boundaries having a small gap.
CONSTITUTION: Adaptor members, formed integrally by a pair of fine reinforcing members 11, arranged in parallel to each other with a small gap, and jointing parts 10, connecting both reinforcing members 11 partially, and a continuous helt type plastic net 9 are prepared. The reinforcing members 11, formed integrally, are arranged on the belt type net 9 with a predetermined interval, corresponding to the width of a condenser, lengthwisely to fix and attach the reinforcing members 11 to the net 9 through supersonic welding and adhesive agent successively. Thereafter, the jointing parts 10 and the net 9 at these parts are cut by a press whereby dust-proof nets 8 are completed. This dust-proof net 8 is provided with notches 12 for changing a length in up-and-down and when the net is attached to the condenser 5, bosses 13 are inserted between the pipes 14 of the condenser 5 to pinch the bosses with the pipes 14.
TANAKA MINORU
ABE KICHIJI
ISHIHARA YASUNARI
OKAMOTO HIROSHI
