| 摘要 |
A pipe machining apparatus (20) includes a coupling mechanism (88,264) adapted to couple a first section (24A) and a second section (24B) of the pipe machining apparatus (20) together. The coupling mechanism (88,264) includes a base (96,100;304,344) defining an aperture (204,316) therein, an arm (128,268; figs 4 & 10) adapted to selectively couple the first and second sections (24A,24B) together, an engagement member (216,328) positioned in the aperture (204,316) in the base (100,304), and a separation member (176,352) movably coupled to the base (96,344) and adapted to push against the engagement member (216,328) in order to separate the first section (24A) and the second section (24B). The coupling mechanism also includes resistance member (148; fig 5) engaging the arm (128,268) and either the first or second section (24A,24B), which retains the arm (128,268) in a set position, and a pin (188; figs 8 & 9) with a conical portion (248) and a rounded portion (252) at the end that is selectively positionable within a receptacle (200; fig 7) defined in a sleeve (168). |
