Rotatable Cutting Shield for Deeper Multi-Angle Cutting
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Solution Overview
Problem
Existing cutting tools have limitations in maximum cutting depth and cutting angle due to their external design, which restricts their operational range and efficiency during cutting operations.
Innovation Solution
A cutting tool design featuring a trunk assembly, head assembly, and a rotatable cutting shield with adjustable contact surfaces, allowing for a maximum cutting depth of 20 mm and a cutting angle between 50° and 85°, facilitated by a transmission assembly and a battery pack with a voltage of 8 V or higher, and an electric motor with output power of 250 W or more.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of moving object
If the cutting tool is designed with a compact housing and cutting shield, then the portability and safety are improved, but the maximum cutting depth is limited
Solution Approach 1:
The cutting shield is designed to be rotatable about the output shaft, allowing it to dynamically adjust between different limit positions. This dynamic adjustment enables the cutting tool to achieve maximum cutting depth at various angles while maintaining a compact housing design, resolving the contradiction between portability and cutting depth capability.
Solution Approach 2:
The solution introduces angular dimension by allowing the cutting shield to rotate about the output shaft. This creates multiple limit positions at different angles, enabling the cutting tool to reach maximum depth in various orientations without increasing the linear dimensions of the housing, thus maintaining portability while enhancing cutting depth capability.
2Adaptability or versatility
If the cutting shield is adjusted to limit positions at two ends, then the maximum cutting depth is achieved, but the cutting angle range is restricted
Solution Approach 1:
The cutting shield serves multiple functions: it provides safety coverage, defines cutting depth limits, and enables cutting at various angles by rotating to different limit positions. This multi-functionality allows a single shield structure to achieve both maximum cutting depth and extended cutting angle range without requiring separate adjustment mechanisms for each function.
3Object-affected harmful factors
If the housing and cutting shield structures fit with the workpiece, then safety is improved, but the cutting piece cannot cut deeper
Solution Approach 1:
The cutting shield is designed to be rotatable about the output shaft, allowing it to dynamically adjust between different limit positions. This dynamic adjustment enables the cutting tool to achieve maximum cutting depth at various angles while maintaining a compact housing design, resolving the contradiction between portability and cutting depth 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
The design enables a larger cutting depth and angle, enhancing user operation flexibility and efficiency by allowing the cutting tool to reach maximum depth without adjusting angles, improving user experience and operational range.
Implementation Method 1
an electric motor; an output shaft to which a cutting piece for cutting a workpiece is mounted
Implementation Method 2
a transmission assembly connected between a motor shaft and the output shaft and configured to transmit a drive force from the electric motor to the output shaft
Implementation Method 3
a battery pack for supplying power to the cutting tool; the rated voltage of the battery pack is greater than or equal to 8 V
Data Source
AI summary
A cutting tool includes a trunk assembly, an electric motor, a second housing for accommodating the electric motor, an output shaft for mounting a cutting piece, a transmission assembly connected between a motor shaft and the output shaft, and a third housing for accommodating at least part of the transmission assembly. In a process of the cutting piece cutting a workpiece, the third housing has a first contact surface and a second contact surface with the workpiece; when the first contact surface or the second contact surface is in contact with the workpiece, the cutting piece has a maximum cutting depth; and the angle between the first contact surface and the second contact surface is greater than or equal to 50° and less than or equal to 85°, and the maximum cutting depth is greater than or equal to 20 mm.