Deformable Cutter Machine Hand Guard for Obstacle Clearance
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Solution Overview
Problem
Existing cutter machines with hand guards interfere with obstacles during cutting work, hindering the desired position or posture, thereby decreasing user convenience.
Innovation Solution
A deformable hand guard that can elastically deform or change position relative to the housing, allowing the cutter machine to be used despite interference with obstacles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a hand guard is attached to the housing to protect user fingers, then safety is improved, but the hand guard may mechanically interfere with obstacles during cutting work, decreasing user convenience
Solution Approach 1:
The hand guard is designed to be movable relative to the housing, allowing it to dynamically adjust its position. The guard can move between a first position that provides full finger protection and a second position that reduces interference with obstacles during cutting operations, thereby resolving the contradiction between safety and ease of operation
Solution Approach 2:
The position parameter of the hand guard is made changeable. The guard can be positioned at different locations relative to the housing - in a first position for maximum protection and in a second position for improved operational convenience. This parameter change allows the system to adapt to different operational requirements
2Strength
If the hand guard is integrated seamlessly with the housing, then structural strength is improved, but the hand guard deforms at the same level as the housing, reducing its ability to yield during contact with obstacles
Solution Approach 1:
Different parts of the hand guard system have different mechanical properties. The housing maintains high strength and rigidity, while the hand guard portion is designed with lower rigidity to allow deformation. This local quality differentiation allows the strong housing to support the overall structure while the more compliant hand guard can deform during contact with obstacles
Solution Approach 2:
The hand guard system uses materials or structural configurations with different mechanical properties. The housing is made of a stronger, more rigid material, while the hand guard is made of or configured as a more deformable material or structure, creating a composite system that combines both strength and adaptability
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
Improves user convenience by enabling the cutter machine to be used in its desired position or posture even when the hand guard interferes with obstacles.
Implementation Method 1
the hand guard being more deformable than the housing... When a load is applied to the hand guard in a state where the hand guard is in contact with an obstacle, the hand guard deforms relative to the housing
Data Source
AI summary
A cutter machine may include a cutter unit, a prime mover configured to drive the cutter unit, a housing including a housing body and a grip, wherein the housing body holds the cutter unit and houses the prime mover, and the grip extends from the housing body and is configured to be grasped by a user's hand, and a hand guard attached to the housing, configured to protect fingers of the user's hand grasping the grip, and being more deformable than the housing.