Stapler Magazine Cover Prevents Staple Scattering
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Solution Overview
Problem
Existing staplers with exposed magazines are prone to staple scattering when tilted or inverted, as the staples can easily exit the magazine and become dispersed.
Innovation Solution
A stapler design where a cover is positioned to enclose the protruding sidewalls, tip end wall, and opening of the magazine, preventing staples from scattering even when the stapler is tilted or inverted by covering the magazine when it protrudes from the main body.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the magazine protrudes from the main body to facilitate staple loading, then ease of operation is improved, but reliability deteriorates because staples can scatter when the stapler is tilted or inverted
Solution Approach 1:
The cover is nested over the protruding magazine to create a protective enclosure. When the cover is in the closed position, it surrounds the magazine opening and sidewalls, preventing staples from scattering while allowing the magazine to remain accessible for loading. This nesting approach resolves the contradiction by adding a protective layer without requiring the magazine to be retracted.
Solution Approach 2:
The cover acts as a flexible protective shell that can move between open and closed positions. This thin film structure provides protection against staple scattering when closed, while allowing easy access for loading when opened, thus resolving the contradiction between reliability and ease of operation.
2Ease of operation
If the magazine is exposed from the main body, then accessibility for loading is improved, but stability of staple containment deteriorates when the stapler is tilted
Solution Approach 1:
The cover is positioned to preemptively prevent staple scattering before it can occur. By closing the cover over the protruding magazine, the system creates a stable containment environment that counteracts the destabilizing effect of tilting, thus resolving the contradiction between accessibility and containment stability.
3Ease of operation
If the magazine protrudes forward for easy loading, then ease of operation is improved, but protection from harmful factors worsens due to exposure to external forces
Solution Approach 1:
The cover serves as an intermediary protective element between the protruding magazine and external harmful forces such as tilting and inversion. When closed, it mediates the impact of these forces, preventing them from directly affecting the staple containment, thus resolving the contradiction between ease of loading and protection from harmful factors.
Data Source
Figure 1
Figure 2A
Figure 2B
AI summary
A stapler (10) includes a main body (12), a magazine (40) having a pair of sidewalls (40a, 40b) and a tip end wall (40c), a driver (60), a clincher (30), and a cover (20). The magazine (40) is configured to be movable between a first position and a second position. A staple (S) is capable of being taken in and out from an opening (40e) formed above the pair of sidewalls (40a, 40b) and the tip end wall (40c) when the magazine (40) is located at the second position. The cover (20) is attached to the main body (12) so as to be displaceable between a third position and a fourth position. When the cover (20) is located at the third position and the magazine (40) is located at the second position, the cover (20) covers the pair of sidewalls (40a, 40b), the tip end wall (40c) and the opening (40e) of the magazine (40) in a state of protruding from the main body (12).