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Spring actuated stapler
   
Document Number
US Patent 7121444
Issued Date
October 17, 2006
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Abstract
The stapling apparatus of the present invention comprises a base member and a magazine member for accommodating a set of staples, each member having a first end and a second end, and the two members being pivotably connected to each other at the first ends. The stapling apparatus further comprises a striking plate for individually dispensing the staples upon actuation by a striker spring, and a triggering mechanism for triggering the actuation of the striker spring. In particular, the triggering mechanism comprises a triggering lever arranged such that the triggering lever triggers the actuation of the striker spring when the second ends of the two members are moved toward each other.
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Number of Claims:
24
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Owner
Published
October 17, 2006
Application Number
10/898,019
Filed
July 23, 2004
US Classification
227/132   227/134
Int'l Classification
B25C   5/06   (20060101)  
Examiner
USPTO Field of Search
227/120   227/132   227/134  
Related Patents
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A miniature spring-actuated stapler includes a tapered, flat power spring to store energy and eject staples. The power spring pivots at a rear of the stapler housing and includes three co-extensive arms terminating near the striker. As the L-shaped handle of the stapler is pressed, it acts on the center arm of the power spring to deflect it downward while the outer arms deflect upward. The arms are integral at a rear end and the outer arms are linked to the striker at the front. A tapered, flat reset spring disposed generally parallel to the power spring is used to reset the internal action. The housing includes open top and rear areas with the handle providing the enclosure thereof. A base assembly is slidably attached at a bottom of the stapler with an open position exposing a staple-loading chamber.

7513406 - Mini desktop stapler - Owned by Worktools, Inc. (Chatsworth, CA)

A miniature spring-actuated stapler includes a tapered, flat power spring to store energy and eject staples. The power spring pivots at a rear of the stapler housing and includes three co-extensive arms terminating near the striker. As the L-shaped handle of the stapler is pressed, it acts on the center arm of the power spring to deflect it downward while the outer arms deflect upward. The arms are integral at a rear end and the outer arms are linked to the striker at the front. A tapered, flat reset spring disposed generally parallel to the power spring is used to reset the internal action. The housing includes open top and rear areas with the handle providing the enclosure thereof. A base assembly is slidably attached at a bottom of the stapler with an open position exposing a staple-loading chamber.

7395955 - Stapler - Owned by Staples The Office Superstore, LLC (Framingham, MA)

A stapler includes a body and a strike plate movably mounted to the body between a rest position and a loaded position. The strike plate is adapted to drive a staple into a target object. The strike plate may be moved from the rest position to the loaded position by a loading mechanism against the bias of a power spring, whereupon the energy stored in the power spring is applied to the strike plate to drive the staple. A stapler may include a lockout which inhibits movement of the strike plate toward the loaded position unless a work piece is beneath the stapler body.

7540400 - Stapler having a moveable strike plate with lockout mechanism - Owned by Staples The Office Superstore, LLC (Framingham, MA)

A stapler includes a body and a strike plate movably mounted to the body between a rest position and a loaded position. The strike plate is adapted to drive a staple into a target object. The strike plate may be moved from the rest position to the loaded position by a loading mechanism against the bias of a power spring, whereupon the energy stored in the power spring is applied to the strike plate to drive the staple. A stapler may include a lockout which inhibits movement of the strike plate toward the loaded position unless a work piece is beneath the stapler body.

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Description
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