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US 2011/0262247 A1Published application
Penetration load reduced staple
AssigneeMax Co., Ltd.
InventorToshiyuki Kanai
Life of this patent
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Abstract
A penetration load reduced staple includes a pair of leg portions configured to penetrate sheets of paper, a crown portion connecting the pair of leg portions. Each of the leg portions includes a protrusion protruding in a direction intersecting with a longitudinal direction of the leg portion, from a portion of a side surface of the leg portion between the crown portion and a distal end portion of the leg portion and near the distal end portion.
Claims7
A penetration load reduced staple for use with a stapler configured to bind a plurality of sheets of paper, the penetration load reduced staple comprising:
- a pair of leg portions configured to penetrate the sheets of paper;
- and
- a crown portion connecting the pair of leg portions,
- wherein each of the leg portions comprises a first protrusion protruding in a first direction intersecting with a longitudinal direction of the leg portion and a second protrusion protruding in a second direction intersecting with the longitudinal direction of the leg portion, the first protrusion protruding from a portion of an inner side surface of the leg portion between the crown portion and a distal end portion of the leg portion and near the distal end portion, the second protrusion protruding from a portion of an outer side surface of the leg portion between the crown portion and the distal end portion and near the distal end portion.
1 more element
Dependencies are inferred from the claim text.