Patent ID: 7318687

Claim:
An assembly comprising a male component and a female component which connect together to form a mechanical connection, the female component being adapted to at least partially receive an end portion of the male component, the female component having at least one bore which is adapted to receive a clamping pin which can be tightened to clamp the female component around the male component, and further in which a guide is provided which is carried by the male component and which comprises a U-shaped bracket with a base portion of the bracket having an opening receiving the end of the male portion and upper arm portions each defining two opening regions, each opening region facing a corresponding opening region to define two pairs of openings through which the pin can be passed, wherein in use at least one of the pairs of opening regions is aligned with the at least one bore in the female component to permit insertion of the clamping pin into the bore when the male component and the female component are correctly aligned and the blocking region otherwise preventing insertion of the clamping pin when the male component is inserted into the female component with an incorrect alignment, and in which one opening of each pair is provided with a tang which prevents the pin passing through the opening unless the tang is deformed.