Fuel Cell Adapter Locking Structure for Fastener Driving Tools
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Solution Overview
Problem
Existing combustion-powered fastener driving tool fuel cell adapters are not securely attachable to sealing members, leading to issues such as popping off or twisting off at undesired times, which can result in inadequate fuel delivery to the tool.
Innovation Solution
A fuel cell adapter with a larger hub outer diameter, modified legs with lead-in chamfers for easier insertion, reduced slot height for increased rigidity, and enhanced locking members to ensure a secure and stable attachment to the sealing member and fuel cell, preventing popping off and untwisting.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the hub outer diameter is increased to provide a tighter fit, then the attachment security is improved, but the insertion difficulty increases
Solution Approach 1:
Lead-in chamfers are provided on the legs of the adapter hub that engage corresponding surfaces on the sealing member grooves before the main body of the adapter contacts the sealing member. This preliminary engagement guides the adapter into proper alignment and facilitates easy insertion despite the increased hub outer diameter, resolving the contradiction between attachment security and insertion ease.
2Stability of the object's composition
If the slot height is reduced to increase rigidity, then the structural stability is improved, but the manufacturing precision requirements increase
Solution Approach 1:
The slot height in the legs is reduced from previous designs to increase the rigidity and dimensional stability of the adapter structure. This parameter change ensures that the adapter maintains its shape and alignment under operational forces, while the associated lead-in chamfers and tolerance specifications ensure manufacturability despite the tighter dimensional constraints.
3Reliability
If the locking members are enhanced to prevent twisting off, then the attachment reliability is improved, but the device complexity increases
Solution Approach 1:
The locking members are designed with asymmetric engagement features including ledges and corresponding grooves that prevent rotational movement and twisting off of the adapter from the sealing member. The asymmetric geometry provides inherent anti-twist functionality without requiring additional complex locking mechanisms, thus improving attachment reliability while minimizing increases in device complexity.
Data Source
AI summary
Various embodiments of the present disclosure provide a combustion-powered fastener driving tool fuel cell adapter for a fuel cell for a combustion-powered fastener driving tool, wherein the adapter is configured to reduce the chance of the adapter popping off of a sealing member attached to a fuel cell, wherein the adapter is configured to reduce the chance of the adapter untwisting from the sealing member.