| 摘要 |
A driving mechanism for transfer finger of bolt forming header wherein the phase of cam of the device can be easily variable. The device comprises a base frame, a drive shaft rotatably mounted on said base frame, a cylindrical holder fixedly mounted on said drive shaft, a pair of clutch cylinders mounted on said cylindrical holder, said clutch cylinders having serrations at one end thereof and recessed and ridged portion at the other end thereof, a pair of cams mounted on said cylindrical holder, said cams having serrations engageable with the serrations of said clutch cylinders, and a pair of clutches mounted on said cylindrical holder at both ends thereof, said clutches having recessed and ridged portion engageable with said recessed and ridged portions of said clutch cylinders.
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