Structure of pivot joint

Details Structure of pivot joint Structure of pivot joint

1996-07-01

1997-12-30

Dorner, Kenneth J.

Joints and connections

Articulated members

Axially spring-biased coaxial members

403 91, 403 84, 16342, 361681, F16B 710, F17C 1100, H05K 700

Patent

active

057021970

ABSTRACT:
A pivot joint including a pivot bolt, which has an elongated flat mounting rod section at one end, a screw rod section at an opposite end, which has two longitudinal planes at two opposite sides, and a collar between in the middle, a mounting frame rotatable about the screw rod section, a lock nut in threaded engagement with the screw rod section, a first packing ring mounted around the screw rod section between the mounting frame and the collar, a second packing ring mounted around the screw rod section between the mounting frame and the lock nut, a locating ring mounted around the screw rod section between the second packing ring and the lock nut and rotatable by the pivot bolt relative to the mounting frame, reversed sets of disk-like spring rings mounted around the screw rod section between the locating ring and the lock nut, and a washer mounted around the screw rod section between the spring rings and the lock nut, wherein the second packing ring has a curved flange abutting the locating ring so that the second packing ring and the locating ring are connected through a line contact.

REFERENCES:
patent: 5208944 (1993-05-01), Lu
patent: 5239731 (1993-08-01), Lu
patent: 5269047 (1993-12-01), Lu

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