Spring-Driven Nail Gun Energy Storage Mechanism
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Solution Overview
Problem
Conventional nail guns, both pneumatic and electrical, face limitations such as dependence on compressed air or high current solenoids, which restrict their use due to air-line length constraints and increased resistance in solenoid windings, making them less efficient for driving nails effectively.
Innovation Solution
An energy storage mechanism using a cylinder with a piston and springs, where the driving member engages and disengages with the nail striking member to store and release energy, allowing the piston to move and drive the nail striking member to strike nails without the need for continuous external power, incorporating guiding rods, shock absorbing components, and an adjustable mechanism for tightness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If pneumatic nail guns use compressed air to actuate the striking pin, then the nail driving function is achieved, but the device is restricted by air-line length and requires auxiliary equipment
Solution Approach 1:
The patent extracts the energy storage function from the external air supply system and implements it through a self-contained spring mechanism within the nail gun, eliminating the need for air-lines and external compressors
Solution Approach 2:
The spring-loaded piston system serves itself by storing energy during the trigger pull and automatically releasing it to drive the nail, without requiring external power sources or complex control systems
2Force
If electrical nail guns use solenoid driven mechanisms with large number of turns and high current pulses, then high forces are obtained, but the resistance of the coil increases in direct proportion to the length of the wire
Solution Approach 1:
The patent replaces the electrical solenoid system with a mechanical spring-driven system, where the spring stores and releases energy to generate the striking force, eliminating coil resistance and energy loss
Solution Approach 2:
The spring is pre-compressed during the trigger pull to store energy before the striking action, allowing the system to deliver high force without requiring high current pulses during the actual nail driving
3Force
If solenoid driven mechanisms use large number of ampere-turns, then high forces are obtained, but the device is limited to short stroke small load applications
Solution Approach 1:
The patent uses a dynamic spring-loaded piston system that can accommodate varying stroke lengths and loads by adjusting the spring compression and release mechanism, providing adaptability across different application requirements
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 solution enables a more efficient and flexible nail gun operation, reducing the need for external power sources and minimizing resistance, allowing for effective nail driving with improved convenience and reduced mechanical stress.
Implementation Method 1
at least one spring disposed in the cylinder and configured such that an engagement of the driving member with the nail striking member causes the piston to move backward in the cylinder to push the at least one spring into a contract state so as to store energy therein
Implementation Method 2
an disengagement of the driving member with the nail striking member causes the least one spring to release the stored energy therein to push the piston to move frontward in the cylinder
Data Source
AI summary
An energy storage mechanism and a nail gun having the same. The nail gun includes a driving mechanism having a piston, a nail striking member co-movably connected to the piston, and a driving member being operably alternatively engaged and disengaged with the nail striking member. The energy storage mechanism includes a cylinder and at least one spring disposed in the cylinder such that an engagement of the driving member with the nail striking member causes the piston to move backward in the cylinder to push the at least one spring into a contract state so as to store energy therein, and an disengagement of the driving member with the nail striking member causes the least one spring to release the stored energy therein to push the piston to move frontward in the cylinder so that the nail striking member is co-moved therewith to strike a nail out of a muzzle.