Staple-former in a stapler

Details Staple-former in a stapler Staple-former in a stapler

2006-01-17

2006-01-17

Smith, Scott A. (Department: 3721)

Elongated-member-driving apparatus

With means to form member prior to penetration of work

With offset tools to deform members

C227S082000, C227S088000, C227S155000

Reexamination Certificate

active

06986449

ABSTRACT:
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).

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