HRP20070313A2 - Four-angled joint - Google Patents

Abstract

The quadrilateral joint is made up of four equal forks (1) that interconnect four equal square hoops (2, 3, 4 and 5). The forks (1) are shaped like a letter, with square grooves (8 and 9) made on the upper surface of the left and right arms. The forks (1) are interconnected at a 90 ° angle with the square hoop (2, 3, 4 and 5) wedged in the groove (8) of the right fork of one fork (1) and in the groove (9) of the left fork of the other fork (1). Tightening or counterclockwise tightening is done with a screw (6), which extends at each hoop (2, 3, 4 and 5) from the wall of the hoop bore (11), through the bore (10) of the right fork (1). ), nut (7), and with its forehead rests on the inner wall of the hoops (2, 3, 4 and 5). An additional thrust fork (12) is mounted on one rim of the coupling, which permits a fourth tightening. .Constructive solution of the way of connecting the forks (1) and the square hoops (2, 3, 4 and 5) prevents the plastic deformation of the forks (1) by using higher clamping forces (bolt M10), and increases the stability of the joint by using larger clamping or suspension surfaces. The quadrilateral coupling also has four protective caps (13) for aesthetic reasons. The quadrangular coupler allows for tightening of elements of different dimensions in one direction and elements of different dimensions in two directions. Tightening is performed with stronger forces and with larger contact surfaces, without the use of tools and additional connecting elements.