| 摘要 |
A method of making a slip latch in a parted corrugated piston ring expander with normally abutting ends and apertured legs in which guides are inserted into selected corrugations to provide a guideway through which the free end of a curved filament is pushed. A machine for performing the method has a locator to hold the expander and a plurality of inner and outer guides extending into the expander to guide the curved filament through the apertures in some of the legs. A feed mechanism pushes a free end of the filament through the expander in cooperation with the guides and into circumferentially spaced left and right hand dies which shear the filament to form a rod of the latch and coin stops on the opposite ends of the rod. The stops retain the latch within the expander and limit the extent to which the opposed ends of the expander can be separated. |
