| 摘要 |
A staple-former ( 11 ) in a stapler ( 1 ) that uses a driver blade ( 10 ) to drive staples ( 17 ), preferably into a sheaf of paper ( 16 ). The stapler contains a magazine ( 7 ) of staple blanks ( 8 ). A feed device ( 6 ) advances staple blanks onto an integral bending die ( 15 ) for bending into staple shape. Each staple has a first and a second leg ( 18, 19 ) and a crown portion ( 20 ). The staple-former ( 11 ) includes first and second leg-bending parts ( 24, 26 ) and crown-forming part ( 28 ). A staple forms when a drive device ( 12, 13, 14 ), moves the leg-bending parts ( 24, 26 ) and the crown-forming part over the bending die ( 15 ) causing a staple blank ( 8 ) to assume a staple shape. The staple-former then reciprocates to its starting positions, the staple advances to the driver blade ( 10 ), and a biasing element ( 32 ) urges the crown-forming part ( 28 ) away from the staple-former ( 11 ). |
