Driving Machine Blade Guide with Alternating Concave Sections
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Solution Overview
Problem
Conventional driving machines for U-shaped staples face issues with staple jamming and improper driving due to the risk of staples buckling and entering concave sections within the launching passage, leading to empty driving prevention failures.
Innovation Solution
A driving machine design featuring a driver blade with two parallel drive needle sections and a U-shaped connection, along with a feeder and blade guide system that includes convex and concave sections to prevent staple ends from entering the concave sections, ensuring stable feeding and reducing jamming risks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a concave section is formed inside the launching passage to prevent empty driving, then empty driving prevention is improved, but staple jamming risk increases
Solution Approach 1:
The blade guide is divided into multiple functional sections: a groove section for guiding the driver blade, and multiple concave sections positioned at specific locations. This segmentation allows the concave sections to prevent empty driving while the groove section maintains clear passage for the staple, reducing jamming risk.
Solution Approach 2:
The concave sections are strategically positioned only at specific locations within the blade guide where they can prevent empty driving without interfering with the staple's path. The groove section provides a clear pathway, creating local quality differences that prevent both empty driving and staple jamming.
2Reliability
If the feeder moves the convex section into the concave section to prevent empty driving, then empty driving prevention is improved, but staple buckling risk increases
Solution Approach 1:
The convex section of the feeder is designed to engage with the concave section in advance, before the driver blade strikes the staple. This preliminary engagement prevents empty driving while the groove section ensures the staple remains in a stable position, preventing buckling during the driving process.
Solution Approach 2:
The groove section acts as an intermediary element that separates the convex section's engagement with the concave section from the staple's path. This intermediary structure allows the convex-concave interaction to prevent empty driving while maintaining a clear pathway for the staple, preventing buckling.
3Reliability
If the concave section is positioned to engage with the convex section, then empty driving prevention is improved, but device complexity increases
Solution Approach 1:
The groove section and concave sections are integrated into a single blade guide component. This merging of functions into one piece reduces the number of separate parts and simplifies assembly, while still providing both driver blade guidance and empty driving prevention capabilities.
Data Source
AI summary
According to an aspect of the present invention, there is provided a driving machine including: a driver blade for striking a fastener formed into an U-shape; a nose in which a launching passage is formed; and a magazine for feeding the fastener into the launching passage, wherein the magazine has a feeder for urging the multiple fasteners toward the launching passage, and the feeder has first and second convex sections each making contact with and urging respective needle of the U-shaped fastener; the nose has a blade guide for slidably guiding the driver blade; and the blade guide has first and concave sections for accommodating the first and second convex sections, the first and second concave sections being disposed alternately in the sliding direction of the driver blade.