| 摘要 |
<p>The joint comprises a first shaft 11 and a second shaft 12 the axes (A and B) of which intersect at the geometrical centre (C) of the joint. Two joint parts 20 and 30 are provided, rigidly connected to a respective shaft 11, 12 and coupled together in such a manner as to define a ball joint with its centre at the point of intersection (C) of the axes (A, B) of the two shafts 11, 12, to enable one shaft to swivel relative to the other. In that surface of one of the two joint parts which faces the other part there is provided at least one groove having its longitudinal axis extending in a plane passing through the axis (B, A) of the shaft 12, 11 to which the joint part 30, 20 is connected. At least one pin 16 is carried and rigidly rotated by the other 20, 30 of the two joint parts 20, 30 and engages said groove 15 to oblige the two shafts (A, B) to rotate together. The pin 16 is able to slide longitudinally within the groove 15, the joint parts 20, 30 being able to swivel one relative to the other about the axis (P) of the pin 16. Preferably, the joint comprises two said pins 16 aligned along the same axis (P) passing through the centre (C) of the joint and engaging two respective grooves 15 positioned in the same axial plane. <IMAGE></p> |
