Staple Support Part With Inclined Surface For Buckling Prevention
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Solution Overview
Problem
Existing electric staplers face issues with staple buckling when binding large numbers of sheets or thick papers, leading to increased component complexity and cost due to separate leg and crown supports.
Innovation Solution
A cartridge design with a staple support part featuring an inclined surface that supports both the crown and leg portions of the staple, reducing the number of components and simplifying the structure by integrating support mechanisms for the staple's U-shape formation and striking process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If separate leg support and crown support are provided to prevent staple buckling, then staple stability is improved, but device complexity increases
Solution Approach 1:
The patent combines the leg support and crown support into a single integrated support structure. This unified structure includes a support body with a leg support surface for supporting the staple legs and a crown support surface for supporting the staple crown, eliminating the need for separate components while maintaining the stability function.
Solution Approach 2:
The integrated support structure serves multiple functions simultaneously: it supports both the leg portions and the crown portion of the staple, provides guidance for staple conveyance, and prevents buckling. This multi-functional design reduces the overall number of components needed in the cartridge.
2Reliability
If separate leg support and crown support are provided to prevent staple buckling, then staple stability is improved, but manufacturing cost increases
Solution Approach 1:
By merging the leg support and crown support into a single integrated component, the patent reduces the number of parts that need to be manufactured, assembled, and inventoried. This consolidation directly reduces manufacturing costs while maintaining the dual support function for staple stability.
3Device complexity
If integrated staple support is used to reduce components, then device complexity is reduced, but staple support capability may be compromised
Solution Approach 1:
The integrated support structure incorporates different surface characteristics in different regions: a leg support surface with appropriate geometry for supporting the staple legs, and a crown support surface for supporting the staple crown. This local differentiation ensures that each region of the integrated structure provides the specific support needed for its corresponding staple portion.
Solution Approach 2:
The support structure utilizes three-dimensional spatial arrangement with surfaces oriented at different angles and positions to support both the legs and crown of the staple simultaneously. This dimensional approach allows a single component to provide multi-point support that would otherwise require separate elements.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The integrated support mechanism effectively prevents staple buckling, reduces component count, and lowers costs while maintaining stability and guiding ability for staple conveyance, even with thick papers or large sheet bindings.
Implementation Method 1
the staple support part including an inclined surface protruding obliquely from the front end face in the striking direction and being displaceable in a direction perpendicular to the front end face, the staple support part configured to support the crown portion with the inclined surface and the pair of leg portions with side edge portions of the inclined surface when the staple is moved in the striking direction
Data Source
AI summary
A cartridge includes a staple support part provided on a front end face. The staple support part includes an inclined surface protruding obliquely from the front end face in a striking direction, and is configured to support a crown portion of the staple with the inclined surface and a pair of leg portions of the staple with side edge portions of the inclined surface. The side edge portion has: a connection portion continuing to the inclined surface and extending from the inclined surface in an opposite direction to a feeding direction of the staple, by a first length; and a leg portion contact portion extending with being folded from a tip end portion of the connection portion in the feeding direction by at least the first length, and configured to support corresponding one of the pair of leg portions from an inner side thereof.