Patent ID: 7665644
Filing Date: 2010-02-23
Classification: B25C

Abstract:
1. A stapler comprising: a body including two holes formed on two sidewalls thereof and a first link defined on one sidewall thereof with the first link having a first end and a second end; a magazine assembly installed in a bottom of the body; a handle assembly including a handle lever formed on an end thereof, a handle stop defined on another end thereof, a second link and a through hole between the handle lever and the handle stop, with the second link of the handle assembly having a first end and a second end; a connector disposed in the second link of the handle assembly and respectively pivotally coupling to the two holes of the body, with the connector moving between the first and second ends in the second link of the handle assembly when pressing the handle lever downwardly; a first roller inserted through the through hole of the handle assembly and moving rotatably in the first link of the body with the first roller moving between the first and second ends of the first link of the body when pressing the handle lever downwardly, with the second end of the second link located intermediate the first and second ends of the first link of the body, with the first end of the second link being spaced from the first link of the body greater than the second end of the second link; a power leaf spring disposed in the body and having an end; and a plunger including a first hole and a second hole; with the handle stop of the handle assembly inserted in the first hole, and with the end of the power leaf spring inserted in the second hole; wherein while the handle lever is pressed downwardly and the handle stop lifts the plunger upwardly, the first roller is driven to move rotatably in the link of the body as to detach the handle stop from the first hole of the plunger gradually.