Manual/Electric Ratchet Driver With Direction Lever Switching
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Solution Overview
Problem
Conventional manual and electric drivers require workers to release their hands or detach the bit from the workpiece to change rotation direction, disrupting workflow continuity and reducing efficiency.
Innovation Solution
A manual/electric ratchet driver with a ratchet function that allows continuous rotation in one direction without hand detachment, featuring a spindle with a protrusion, ratchet plates, and a direction lever to easily switch rotation direction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional manual or electric drivers are used, then work can be performed with basic functionality, but the worker must release hand or detach bit to change rotation direction, reducing work continuity and efficiency
Solution Approach 1:
The patent combines the ratchet mechanism with the driver body, integrating unidirectional rotation control directly into the driver structure. This allows the driver to maintain engagement with the workpiece while automatically controlling rotation direction, eliminating the need to detach the bit or release hand during operation.
Solution Approach 2:
The ratchet mechanism enables dynamic adaptation of rotation control, allowing the driver to rotate freely in the forward direction while automatically restraining reverse rotation. This dynamic behavior maintains continuous operation without requiring manual intervention to change rotation direction.
2Productivity
If electric motor is added to create electric driver, then work efficiency increases, but precise work becomes difficult to achieve
Solution Approach 1:
The patent merges the electric motor with the ratchet mechanism in an integrated driver structure. The motor provides powered rotation while the ratchet mechanism simultaneously controls the rotation direction, allowing the electric driver to maintain both high efficiency and precise unidirectional rotation control.
3Power
If corded electric screwdriver is used, then power supply is stable, but mobility is reduced
Solution Approach 1:
The driver is designed with universal power compatibility, able to operate with either corded or cordless power sources. The ratchet mechanism and driver structure remain the same regardless of power source type, providing mobility options while maintaining stable operation when powered.
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
Enhances work efficiency by enabling seamless direction changes and maintaining continuous operation with a simple configuration and minimal parts.
Implementation Method 1
a pair of lever springs provided on a lower surface of the direction lever and configured to press the rotating part of each of the ratchet plates to rotate
Implementation Method 2
a ratchet plate spring provided on a lower surface of the cover, and configured to press the pair of ratchet plates so that any rotated ratchet plate to return
Implementation Method 3
a protruding part configured to protrude between partial protrusions of the protrusion on the horizontal plate and to rotate or restrain the protrusion
Data Source
AI summary
Proposed is a manual/electric ratchet driver with an added ratchet function that allows the driver to rotate in one desired direction without a worker having to take his or her hand off the driver or separate a bit connected to the driver from a workpiece, and the ability to easily change the direction of rotation with a simple lever operation.