Retractable Nose Flywheel Fastener Tool
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Solution Overview
Problem
Existing fastener driving tools with flywheel mechanisms require complex interconnections and retraction processes to operate effectively, leading to inefficiencies in driving multiple fasteners without interference.
Innovation Solution
A fastener driving tool with a retractable nose part and a connection mechanism that moves a wheel from an inoperative to operative position, allowing the driver to disengage and re-engage with the wheel, enabling efficient operation by breaking and re-forming the interconnection between the nose part and wheel, utilizing pivotally mounted flywheels and resilient components for mechanical advantage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the nose part is made retractable to enable driver disengagement, then the driver can return to starting position without touching the wheel, but the connection mechanism becomes more complex
Solution Approach 1:
The nose part is designed to be retractable relative to the support, transforming from a static component to a dynamic one. This allows the nose part to move between extended and retracted positions, enabling the driver to disengage from the wheel and return to its starting position without interference, thereby improving ease of operation.
Solution Approach 2:
The connection mechanism is divided into multiple components including a connection rod, pivot pin, and resilient member, allowing the nose part to be segmented from the support. This segmentation enables independent movement of the nose part while maintaining operational connectivity, resolving the complexity issue through modular design.
2Productivity
If the driver must break and re-form interconnection with the wheel for continuous operation, then fastener driving efficiency is improved, but the mechanical arrangement becomes more complex
Solution Approach 1:
The driver engages with the wheel, drives fasteners, then disengages and re-engages in a periodic cycle. This periodic action allows continuous operation without interference between fasteners, improving productivity by enabling rapid successive driving operations.
Solution Approach 2:
The resilient member automatically re-forms the interconnection between the driver and wheel after disengagement, eliminating the need for manual reconnection. This self-service mechanism simplifies the overall arrangement while maintaining efficient periodic operation.
3Reliability
If flywheels are made pivotally mounted to move toward and away from each other, then fastener driving without interference is enabled, but the structural complexity increases
Solution Approach 1:
The flywheels are mounted to pivot about a common axis, allowing them to dynamically adjust their relative positions. This pivotal mounting enables the flywheels to move toward each other for engaged operation and away from each other to prevent interference, ensuring reliable fastener driving.
Solution Approach 2:
Multiple functional components (flywheels, pivot mechanism, resilient members) are merged into an integrated assembly that achieves coordinated movement. This merging reduces overall structural complexity while maintaining the ability to pivot and prevent interference between fastener driving operations.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This design allows for effective and efficient driving of fasteners by ensuring the driver can return to its starting position without touching the wheel, facilitating the reformation of the operative interconnection, thus enabling continuous operation without fastener interference.
Implementation Method 1
the tool includes at least one resilient member arranged to cause the wheel to be moved from the operative position to the inoperative position when the operative interconnection between the nose part and the wheel is broken
Data Source
AI summary
A fastener driving tool arranged to drive fasteners into a workpiece includes a support, at least one wheel movably mounted on the support, a driver arranged to contact and he guided by the wheel when the wheel is in an operative position in use, a nose part retractable relative to the support, and a connection mechanism to operatively interconnect the nose part with the wheel. The tool is arranged such that, in use, the retraction of the nose part causes the connection mechanism to move the wheel from an inoperative position to the operative position. Subsequent forward movement of the driver guided by the wheel toward the nose part causes the operative interconnection between the nose part and the wheel to be broken. Forward movement of the nose part relative to the support, subsequent to the operative interconnection between the nose part and the wheel being broken, causes the operative interconnection between the nose part and the wheel to be re-formed.