Curved Flexible Rotation Tool for Precise Depth Adjustment
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Solution Overview
Problem
Existing rotation tools obstruct the operator's view and require high skill for precise adjustments due to the need for manual force to adjust the tool's depth, making them difficult to use in narrow environments.
Innovation Solution
A rotation tool with a flexible shaft and a cylindrical exterior body featuring a spiral protrusion and groove configuration that allows for adjustable depth settings without obstructing the operator's view, enabling smooth rotational movement and easy fine-adjustment, along with a detachable tool portion for versatile use.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the tool is provided on one side of the rotation shaft and a rotatable grip portion is provided on the other side, then the tool can perform rotational work in narrow environments, but the hand of the operator obstructs the field of view of the operator
Solution Approach 1:
The patent transitions from a straight shaft configuration to a curved shaft configuration, changing the spatial dimension of the tool's path. This allows the operator to position their hand outside the direct line of sight to the work area, eliminating the obstruction problem while maintaining the ability to perform rotational work in narrow environments through the curved trajectory
2Ease of operation
If manual force is used to adjust the tool's depth, then the tool can be adjusted, but high skill is required for extremely precise work
Solution Approach 1:
The patent replaces the manual mechanical adjustment system with a ratchet mechanism and depth stop system. The ratchet mechanism provides controlled incremental movement, while the depth stop provides precise positioning, eliminating the need for operator skill and manual force while achieving extremely precise depth adjustments
Solution Approach 2:
The ratchet mechanism automatically maintains the adjusted depth position without requiring continuous manual force or skill from the operator. The mechanism serves itself by locking into position automatically, providing both ease of operation and measurement precision
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
Facilitates work without obstructing the operator's view and allows for precise adjustments with reduced skill requirements, enhancing usability in narrow environments by enabling smooth rotational movement and adaptable tool configurations.
Implementation Method 1
a spiral protrusion is formed on at least a part of the shaft and a spiral groove is formed on at least a part of the curved portion, and the shaft is configured to be movable inside the exterior body by screwing the spiral protrusion and the spiral groove to each other
Data Source
AI summary
The invention aims to provide a rotation tool enabling work without obstructing a view of an operator and facilitating fine-adjustment for the tool. A rotation tool includes a flexible shaft including a tool portion at one end and a grip portion at the other end; and a cylindrical exterior body including curved portion on at least a part thereof, wherein a spiral protrusion is formed on at least a part of the shaft and a spiral groove is formed on at least a part of the curved portion, and the shaft is configured to be movable inside the exterior body by screwing the spiral protrusion and the spiral groove to each other.