Electric Nail Gun Driving Device Swing Arm Control
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Solution Overview
Problem
Conventional electric nail guns face resistance issues due to the biased slant push block impeding smooth activation of the solenoid valve, affecting the nail striking operation.
Innovation Solution
The driving device incorporates a swing arm unit, control unit, and driving unit, where the swing arm is pivotally mounted and swingable between standby and shooting positions, with a control member driven between driving and non-driving positions by a solenoid valve, utilizing a resilient member to maintain the control member's position and facilitate smooth nail striking.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the slant push block is biased to press against the connecting rod, then the swing arm can be moved toward the flywheel, but resistance is created that impedes activation of the solenoid valve
Solution Approach 1:
The patent extracts the biased slant push block from the system and replaces it with an unbiassed push block that simply transmits motion from the connecting rod to the swing arm without creating resistance. This removes the harmful biasing force while maintaining the necessary push function.
Solution Approach 2:
Instead of using a biased push block that actively presses against the swing arm, the invention inverts the approach by using an unbiassed push block that allows the swing arm's own weight and positioning to maintain contact, eliminating the need for active biasing force.
2Reliability
If the slant push block creates resistance against the connecting rod, then the structure can maintain contact, but the solenoid valve activation is impeded
Solution Approach 1:
The harmful biasing function is extracted from the push block, leaving only the essential motion transmission function. The unbiassed push block maintains contact through geometric constraints rather than active forcing, eliminating resistance while preserving reliability.
Solution Approach 2:
The unbiassed push block acts as an intermediary that transmits motion from the connecting rod to the swing arm without introducing resistance. It mediates between the driving mechanism and the swing arm, allowing smooth activation while maintaining necessary contact.
3Ease of operation
If a biased push mechanism is used to move the swing arm, then the impact member can contact the flywheel, but the activation process becomes impeded
Solution Approach 1:
The invention converts the potential harm of resistance into benefit by eliminating the biasing mechanism entirely. The unbiassed push block allows the swing arm to move freely under its own weight and geometric constraints, turning what would be a resistance problem into a smooth operation solution.
Solution Approach 2:
The harmful biasing force is extracted from the system, leaving only the necessary motion transmission function. The push block becomes a simple geometric connector rather than an active forcing element, eliminating resistance while maintaining actuation capability.
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 enhances the stability and fluency of nail striking operations by simplifying the electric nail gun's structure and reducing resistance, allowing for efficient nail driving.
Implementation Method 1
a control-member biasing resilient member disposed between the driven end portion of the control member and the supporting frame for providing a resilient force to push the driven end portion of the control member to abut against the valve rod
Data Source
AI summary
A driving device is adapted for use in an electric nail gun. The electric nail gun includes a supporting frame. The driving device includes a swing arm unit, a control unit and a driving unit. The swing arm unit is swingable between a standby position and a shooting position. The control unit includes a control member having a driven end portion, and an abutting end portion opposite to the driven end portion. The driving unit is for driving the driven end portion of the control member to rotate between a driving position and a non-driving position, and includes a control-member biasing resilient member disposed between the driven end portion of the control member and the supporting frame.