Hinged joint with elastic constraint - permits initial degree of rotation before elastic stops made of rubber are compressed

摘要

The hinged joint consists of two similar square boxes (12) containing an inner square box (13) with its sides at 45 deg. to the sides of the outer box. The spaces between the sides of the inner box (13) and the corners of the outer box (12) are filled with rubber cylinders (15). A third box (14) with rubber cylinders (16) fits inside the box (13). The two boxes (12) are mounted in tandem on the shaft (17) with two discs fitted between them. These discs are provided with tongues and grooves which limit the free angular rotation of one box (12) relative to the other. Any further relative rotation is elastically resisted by compression of the rubber cylinders (15) and (16).