Patent ID: 6361081
Filing Date: 2002-03-26
Classification: F16K,Y10S

Abstract:
A device for fixing lower members (31), (33) to a support member (108) by bolts (110) with a heat insulator (122) interposed between the support member (108) and the lower members (31), (33) each having a bolt bore (107) and being disposed between the support member (108) and an upper member (7), the fixing device being characterized in that the bolt bore (107) of each of the lower members (31), (33) comprises a large-diameter portion (107a) larger than a head (110a) of the bolt in diameter, and a small diameter portion (107b) extending downward from the large-diameter portion with a stepped portion (107c) formed therebetween and having a diameter intermediate the diameter of the bolt head (110a) and the diameter of a shank (110b) of the bolt, the heat insulator (122) being formed with a spacer inserting hole (123), a hollow cylindrical spacer (121) having an inside diameter larger than the diameter of the bolt shank (110b) and being inserted through the small-diameter portion (107b) of the bolt bore and the spacer inserting hole (123) so that an upper end of the spacer (121) is positioned in the large-diameter portion (107a) of the bolt bore, the spacer (121) penetrating through the spacer inserting hole (123) in the heat insulator and having a lower end bearing on the support member (108), and a hollow cylindrical elastic member (112) being interposed between the bolt head (110a) and the stepped portion (107c) for biasing the lower member (31), (33) toward the support member (108).