| 摘要 |
PCT No. PCT/SE93/00166 Sec. 371 Date Oct. 6, 1994 Sec. 102(e) Date Oct. 6, 1994 PCT Filed Feb. 26, 1993 PCT Pub. No. WO93/20980 PCT Pub. Date Oct. 28, 1993.A stapler for driving staples into a sheaf of papers comprising a base, a stapler head pivotably connected to the base via a first pin and pivotable between a starting position and a working position in which it is applied against a sheaf of papers placed between the base and the stapler head. A reciprocating drive element, adapted to drive a staple into the sheaf of papers during a driving stroke, is arranged in the stapler head. An operating mechanism, adapted to drive the drive element, is pivotably connected to the stapler head via a second pin parallel to the first pin. A drive mechanism is arranged in the base for pivoting the stapler head and the operating mechanism. A locking mechanism is arranged in the stapler head for releasably locking the stapler head in a working position while a staple is being driven into the sheaf of papers.
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