Driving Tool Reaction Force Reduction via Extraction
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Solution Overview
Problem
Existing driving tools require heavy balancers or complex configurations to reduce reaction, which increases their size and weight, making them less efficient and more cumbersome.
Innovation Solution
A driving tool design that uses a single or multiple urging members, such as springs, to extend and move a plunger towards an outlet, where the urging force acts on the body, reducing reaction by adjusting the center of gravity and force directions, potentially using a string-shaped member and direction changing mechanisms to optimize the configuration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a heavy balancer is used to reduce reaction, then reaction reduction is achieved, but device weight and size increase
Solution Approach 1:
The patent extracts the reaction force from the tool body by having the urging member extend in a separating direction away from the outlet. This separates the reaction force generation from the main tool structure, allowing the tool body to remain lightweight while still achieving reaction reduction through the urging member's extension motion.
Solution Approach 2:
Instead of using a heavy balancer to counteract reaction force, the patent inverts the approach by using a lightweight urging member that generates force in the opposite direction through extension. The reaction force is reduced not by adding mass but by reversing the conventional approach of using counterweights.
2Object-affected harmful factors
If a heavy balancer is used to reduce reaction, then reaction reduction is achieved, but device size increases
Solution Approach 1:
The patent extracts the reaction force management function from the main tool body by positioning the urging member to extend in a separating direction. This extraction allows the tool body to maintain a compact size while the urging member handles reaction force independently through its extension motion.
Solution Approach 2:
The patent inverts the conventional reaction reduction approach by not using a large balancer mechanism. Instead, it uses a compact urging member that reduces reaction through its extension in the separating direction, thereby maintaining a smaller overall device size.
3Object-affected harmful factors
If two identical driving elements extending in opposite directions are used, then reaction is reduced, but device complexity increases
Solution Approach 1:
The patent extracts the reaction reduction function from a complex dual driving element system and implements it through a single urging member that extends in a separating direction. This extraction simplifies the mechanism while maintaining the ability to reduce reaction force.
Solution Approach 2:
Instead of using two driving elements extending in opposite directions, the patent inverts the approach by using a single urging member that generates counteracting force through extension in the separating direction. This inversion reduces mechanism complexity while achieving the same reaction reduction effect.
4Device complexity
If a single urging member is used to move the plunger, then device complexity is reduced, but reaction reduction capability is improved
Solution Approach 1:
The patent extracts the reaction force from the tool body through the urging member's extension in the separating direction. This allows a simple single-member configuration to achieve reaction reduction without requiring complex multi-element systems.
Solution Approach 2:
The patent demonstrates that a single urging member can achieve reaction reduction by extending in the separating direction, inverting the conventional wisdom that multiple elements are needed. This simple configuration effectively reduces reaction force while maintaining low complexity.
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 configuration allows for reduced reaction forces without the need for heavy balancers, resulting in a more compact and lightweight driving tool that effectively minimizes moment and size, enhancing operational efficiency.
Implementation Method 1
an urging member which moves the plunger in the projecting direction toward the outlet by extension
Data Source
AI summary
A driving tool includes: a body provided with an outlet where a fastener is driven; an urging member attached to the body; and a plunger movable in a projecting direction toward the outlet by extension of the urging member. An urging force in the projecting direction acts on the body from the urging member when the urging member is extended.