BRACING HARDWARE FOR VALVE ROD WITH NOISE GENERATION PREVENTING FUNCTION

摘要

PURPOSE: To prevent the generation of noises when a door body 2 is lifted or lowered. ;CONSTITUTION: A valve rod 3 connected with a door body 3 opening or closing a sluice 1 at the lower end section and lifted or lowered by the positive/reverse rotation of a female screw piece 5 is gently restricted by the inner periphery of a circular member 6 and inserted. An elastic member 11 constituted of four springs 11a, 11b, 11c, 11d and absorbing the vibration of the valve rod 3 is inserted between the circular member 6 and a support member supporting the circular member 6.;COPYRIGHT: (C)1993,JPO&Japio