Hammer-Type Cap Stapler with Side-Mounted Roll Magazine
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Solution Overview
Problem
Existing hammer-type cap stapling tools are cumbersome, costly, and require a power source, with manual tools facing challenges in cap loading and balance due to vertically stacked cap arrangements, which complicates operation, especially when stapling to upright surfaces.
Innovation Solution
A manually-operated hammer-type cap stapling tool with a cap supply defined by an elongated row of serially joined caps wound into a roll, positioned adjacent the grip end, allowing for controlled cap feeding and storage, featuring a cutting mechanism to sever caps from the strip during discharge, enabling independent cap advancement and improved balance and visibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a vertical stack of independent caps is used in a cap supply cylinder, then caps can be stored and fed into the discharge path, but the tool becomes difficult to operate and has poor balance
Solution Approach 1:
The cap supply is segmented from the main tool body into a separate, removable magazine that can be independently loaded and positioned. This allows the cap storage function to be separated from the hammer mechanism, enabling independent optimization of each component's position and structure for better balance and ease of operation.
Solution Approach 2:
The cap magazine is positioned in a different spatial dimension relative to the tool axis, specifically at an angle that optimizes the center of gravity distribution. This angular positioning allows the operator to hold the tool more comfortably with improved balance, addressing the ergonomics issue caused by traditional axial positioning.
2Ease of operation
If a cap supply cylinder is positioned forwardly from the impact end, then caps can be fed into the discharge path, but the tool head becomes overweighted and visibility is reduced
Solution Approach 1:
The cap magazine is positioned at an angular offset from the tool axis rather than directly forward, moving the cap supply mechanism to a different spatial dimension. This angular positioning reduces the forward weight concentration, improving balance and visibility while still allowing cap feeding functionality.
3Productivity
If power-driven staplers with pneumatic operation are used, then efficient stapling operation is achieved, but the tools are large, heavy, and require connection to a power source
Solution Approach 1:
The pneumatic power system is extracted and removed from the tool, replacing it with a manual hammer mechanism. This extraction eliminates the need for air hoses, compressors, and pneumatic components, significantly reducing tool weight and increasing portability while maintaining stapling functionality through manual operation.
Solution Approach 2:
The tool is designed to be self-powered through the operator's manual hammering action, eliminating the need for external power sources. The kinetic energy from the user's swing directly drives the staple ejection mechanism, making the tool completely portable and independent of external infrastructure.
4Quantity of substance
If a vertical stack of independent caps is used, then caps can be stored, but loading of the tool with caps becomes difficult
Solution Approach 1:
The cap magazine is designed as a separate, removable component that can be independently loaded. This segmentation allows caps to be loaded into the magazine separately from the main tool assembly, making the loading process simpler and more convenient, especially in field conditions.
Solution Approach 2:
The magazine can be pre-loaded with caps before attachment to the tool, allowing the loading action to be performed in advance when conditions are more favorable. This preliminary loading simplifies the field operation where the tool is actually used.
Data Source
AI summary
A manually swingable hammer-type stapling tool having an elongate housing having a striker movably mounted thereon; a staple driving blade mounted on the housing and movable relative to the striker along a staple discharge path when the striker impacts against a surface; a staple magazine carried on said housing and containing a clip of staples so that a leading staple of the clip is disposed in a staple discharge path below the driving blade; and a cap supply and feeding arrangement mounted on the housing for positioning a cap in a discharge position wherein it is disposed below the leading staple, the arrangement including a cap magazine containing a significant number of individual caps disposed in adjacent and joined edge-to-edge relationship to define a connected strip of caps, and a manual feeding mechanism for advancing a leading cap of the strip into the discharge position.