Driving Machine Roller Mechanism for Smooth Rack Engagement
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Solution Overview
Problem
Conventional driving machines experience time lag in generating sufficient driving kinetic energy for long nails due to inefficiencies in transmitting energy from a flywheel, leading to friction and potential damage during engagement and disengagement.
Innovation Solution
A driving machine with a roller mechanism that reduces friction by allowing the engaging and engaged sections to smoothly engage and disengage, eliminating the need for a flywheel, and incorporating a pinion and cam with an elastic member to accommodate manufacturing deviations and increase loading capacity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Force
If a flywheel is used to store driving kinetic energy for driving long nails, then the driving force is sufficient, but the time lag increases and the device complexity increases
Solution Approach 1:
The patent removes the flywheel component from the system entirely. Instead of storing kinetic energy in a flywheel and transmitting it through a complex mechanism, the invention uses a direct transmission mechanism where the blade itself stores and transmits the driving force to the fastener, eliminating the time lag associated with flywheel-based energy storage and transmission.
2Force
If a flywheel-based transmission mechanism is used, then driving force is sufficient, but the device complexity and weight increase
Solution Approach 1:
The patent extracts and removes the flywheel and associated complex transmission components. The simplified mechanism uses a blade with an engaging section that directly engages with the fastener, eliminating unnecessary components while maintaining sufficient driving force for long nails.
Solution Approach 2:
Instead of using a flywheel to store energy and then transmit it through a complex mechanism, the invention inverts the approach by using the blade itself as both the energy storage element and the transmission element, directly engaging with the fastener without intermediate components.
3Force
If conventional engagement mechanisms are used, then driving force is transmitted, but friction and wear increase
Solution Approach 1:
The patent employs a roller mechanism with a curved surface that engages with the engaging section of the blade. This curved contact surface distributes the contact pressure and reduces friction during engagement and disengagement, thereby minimizing wear and damage to the components while maintaining effective driving force transmission.
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
The solution enables smooth and efficient transmission of driving force, reducing wear and damage, while achieving light weight, miniaturization, and cost reduction through a simple mechanism, and enhancing nailing force.
Implementation Method 1
The transmission mechanism has a roller mechanism for guiding the engaging section and engaged section to disengage from each other
Implementation Method 2
incorporating a pinion and cam with an elastic member to accommodate manufacturing deviations
Data Source
AI summary
In order to provide a driving machine which achieves reciprocating movements of a rack using a simple mechanism and is able to smoothly engage and disengage the rack by reducing the friction during engagement and disengagement of the rack, the driving machine is equipped with: a nose that extends in a prescribed direction; a housing that has the nose; a blade that has an engaging section, is movably guided in the housing in the prescribed direction, and is capable of driving a fastener via the nose; and a transmission mechanism that has an engaged section for engaging with the engaging section in order to transmit a driving force, wherein the transmission mechanism has a roller mechanism for guiding the engaging section and engaged section to disengage from each other.