Staple Refill Inspection Opening for Deformed Staple Detection
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Solution Overview
Problem
Conventional electric stapler refills lack the ability to effectively check the dimension, shape, and deformation of staples after they are accommodated, leading to potential poor feeding or binding issues due to out-of-specification or deformed staples.
Innovation Solution
A refill design with a peripheral wall structure that includes a first and second opening on the boundary between the side and front walls, allowing staple leg tip ends to be exposed for inspection and measurement, enabling the detection of staple deformities such as bending or warpage even after staples are accommodated.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If staples are accommodated in a conventional refill without opening structures, then the refill maintains a closed and compact structure, but the ability to check staple dimension, shape, and deformation is lost
Solution Approach 1:
The refill structure is segmented into multiple walls (front wall, side walls, bottom wall) with openings specifically positioned at the boundaries between these walls. This segmentation allows the opening to be formed without compromising the overall structural integrity of the refill, while providing access to inspect staple quality.
Solution Approach 2:
The opening is locally positioned at the boundary between the front wall and side wall, creating a specific inspection window without requiring the entire refill structure to be open. This localized approach maintains the closed structure elsewhere while providing the necessary inspection capability at a strategic location.
2Measurement precision
If preliminary inspection of staples is performed before accommodation, then defective staples can be excluded, but defective staples may still pass inspection and deformation occurs after accommodation becomes undetectable
Solution Approach 1:
The opening structure is pre-formed in the refill before staples are accommodated. This preliminary structural preparation enables immediate inspection capability as soon as staples are loaded, eliminating the detection blind spot that occurs with conventional closed refills after accommodation.
Solution Approach 2:
The opening provides continuous feedback capability allowing users to visually inspect staple quality both before and after accommodation. This feedback mechanism enables real-time detection of dimensional issues, shape abnormalities, and deformation, transforming the inspection process from a one-time preliminary check to an ongoing quality assurance system.
3Reliability
If the refill structure is made completely closed to protect staples, then staple protection is improved, but inspection and measurement of staple properties become impossible
Solution Approach 1:
The inspection function is extracted from the staple accommodation space by creating a separate opening pathway. This allows the staple leg tip end to be exposed through the opening for inspection while the main body of the refill remains closed and protective, separating the inspection function from the storage function.
Solution Approach 2:
The opening is positioned at the boundary between the front wall and side wall, creating a multi-dimensional access point. This dimensional arrangement allows the staple leg tip end to protrude through the opening in a direction that enables inspection while maintaining the three-dimensional enclosed structure of the refill for protection.
Data Source
AI summary
A refill includes a peripheral wall defining a space capable of accommodating staples therein. The peripheral wall includes a bottom wall having a first side, a second side opposite to the first side, and a third side connecting end portions of the first side and the second side, a first side wall standing from the first side, a second side wall standing from the second side and opposing the first side wall, and a front wall positioned above the third side and connecting the first side wall and the second side wall. A first opening is formed on the first side wall and the front wall to extend across a boundary between the first side wall and the front wall.