Patent ID: 8327563

Claim:
An apparatus comprising a first component defining a first passage; a second component connectable with the first component and defining a second passage, said passages being aligned when the components are connected to each other; at least one of the first component and the second component includes at least one first formation; a locking pin having an insertion recess extending from one end of the pin, the insertion recess adapted to accommodate the at least one first formation while the pin is slid into the aligned passages unimpeded by the at least one first formation, and a second formation capable of engagement with the at least one first formation, the pin configured for being accommodated in the aligned passages thereby to prevent separation of the components, the pin being rotatable, when so accommodated, relative to the components, between a locked position in which the pin engages at least one of the components to prevent withdrawal of the pin from the aligned passages and the second formation engages the at least one first formation, and a free position in which the pin is slidably removable from the aligned passages to permit separation of the components.