Thread-Based Stapler Prevents Paper Discoloration
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Solution Overview
Problem
Conventional staplers using iron or steel staples cause paper discoloration and degradation over time, leading to loose binding and difficulties in staple removal, which can result in injury.
Innovation Solution
A stapler that binds sheets of paper using threads with a sewing mechanism, featuring a body with a needle insertion hole, a rotating thread supplier, and a presser with fastening needles, allowing for stitching with upper and lower threads to prevent discoloration and easy removal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If iron or steel staples are used for binding, then the binding strength is improved, but the paper discolors and degrades over time
Solution Approach 1:
The harmful iron or steel staple material is extracted and removed from the binding system. Instead, a thread-based stitching mechanism is used that does not contain metal ions, thereby eliminating the cause of paper discoloration and degradation while maintaining binding functionality
Solution Approach 2:
A thread-based stitching mechanism serves as an intermediary solution between the need for strong binding and the need to prevent paper degradation. The thread acts as a mediator that provides binding strength without the harmful chemical interactions caused by metal staples
2Strength
If iron or steel staples are used for binding, then the binding strength is improved, but the staple removal becomes difficult and may cause injury
Solution Approach 1:
The binding solution transitions from permanent metal staples that are difficult to remove to a thread-based system that can be easily undone. The thread binding serves its purpose and can be cleanly removed without damage, replacing the need for difficult staple extraction
3Device complexity
If conventional staplers are used, then the binding process is simple, but the paper holes widen and binding fails over time
Solution Approach 1:
The binding system transitions from static metal staples that create fixed holes to a dynamic thread-based stitching mechanism. The thread can be inserted through existing holes and distributed across multiple points, preventing hole widening while maintaining binding reliability over time
Data Source
AI summary
Disclosed is a stapler including: a body including a fixed plate provided on a top portion of one end thereof and formed with a needle insertion hole, and a lower thread supplier provided below the fixed plate to feed a lower thread through the needle insertion hole; and a presser which is connected to the other end of the body at one end thereof by a rotating shaft, includes a fastening needle installed to the other end to stitch an object, and penetrates the needle insertion hole together with an upper thread, in which the object is stitched with the upper thread and the lower thread when pressure is applied to the presser. Since the sheets of paper are bound with the thread, it is possible to prevent the paper from being discolored or crumbed.