| 摘要 |
A method is disclosed of coupling two component parts (10) for a power to ol when the first component part (42) has a mounting spigot (90) with a channel (239) therein and the second component part (10) has a spigot receiving portion (5 4) with a rib (101) co-operable with the channel. The first component part includes a cylindrical projection with a chamfered edge (250) and a second component pa rt including a detent such that the alignment of the channel in the mounting spigot with the co-operable rib on the spigot receiving portion is the first step of coupling two components. Subsequent steps include engaging the further rib of the spigot receiving portion with a channel on a side wall and finally urging the chamfered edge past the detent. |
