MULTI-INSULATED INSULATOR AND MANUFACTURING METHOD THEREOF

A core bush of a multi-insulated insulator may include a cylinder-shaped core upper plate of which a bottom surface is formed with a core upper plate hole at the center thereof, a bumper stopper cup of which a cylinder-shaped contact portion contacted with the core upper plate is formed to be projected on an upper surface thereof, a bush outer steel of a cylindrical shape opened at upper and lower portions thereof, and disposed to surround outer circumference surfaces of the core upper plate and the contact portion, and a rubber bush disposed between the outer circumference surfaces of the core upper plate and the contact portion and an inner circumference surface of the bush outer steel to couple the core upper plate and the contact portion to the bush outer steel. 本发明涉及种多重隔振式隔振件及其制造方法。多重隔振式隔振件的芯部衬套可以包括：圆柱形芯部上板，该圆柱形芯部上板的底面在其中心形成有芯部上板孔；缓冲止动件盖，该缓冲止动件盖的圆柱形接触部与芯部上板接触，该圆柱形接触部形成为自缓冲止动件盖的上表面凸出；圆柱形衬套外钢板，该衬套外钢板在其上部和下部开口并且设置为围绕芯部上板和接触部的外周面；以及橡胶衬套，其设置在芯部上板和接触部的外周面与衬套外钢板的内圆周面之间，从而将芯部上板和接触部联接至衬套外钢板。本发明还涉及包括该芯部衬套的多重隔振式隔振件