Paint Tool Blade Replacement Using Segmented Side Cover Design
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Solution Overview
Problem
Conventional paint tools require manual tools to disassemble the blade, making it inconvenient to replace, and secondary engagement mechanisms that prevent the side cover from falling off also increase the difficulty of removing the blade.
Innovation Solution
A paint tool design with a second cover body that can be detached to expose an insertion slot, allowing the blade to be easily removed along a specific direction, facilitated by an interlocking structure between cover bodies and an elastically deformable interlocking member.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a secondary engagement mechanism and multiple locating protrusions are used to prevent the side cover from falling off, then the side cover is securely attached to the main body, but the difficulty of removing the side cover increases
Solution Approach 1:
The side cover is divided into two separate parts: a first cover body that remains attached to the main body through the engagement mechanism, and a second cover body that can be easily removed. This segmentation allows the first cover body to maintain secure attachment while the second cover body provides easy access for blade replacement without compromising the overall security of the side cover assembly.
2Strength
If conventional paint tools use a fixed blade structure, then the tool maintains structural integrity, but manual tools are required to disassemble the blade
Solution Approach 1:
The blade structure is designed to be dynamically changeable between a fixed state during use (maintaining structural integrity) and a removable state for replacement. The blade can be easily removed by detaching the second cover body, and features a blade stop to prevent unintended displacement during operation, thus maintaining integrity when needed while enabling convenient replacement when required.
3Ease of operation
If the second cover body is detachably disposed on the first cover body, then the blade can be easily removed, but the device complexity increases
Solution Approach 1:
The side cover is divided into two separate parts: a first cover body that remains attached to the main body through the engagement mechanism, and a second cover body that can be easily removed. This segmentation allows the first cover body to maintain secure attachment while the second cover body provides easy access for blade replacement without compromising the overall security of the side cover assembly.
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
Enables easy replacement of the blade without the need for additional tools, maintaining structural integrity during use and simplifying the assembly and disassembly process.
Implementation Method 1
the interlocking member exhibits an elastically deformable contracted state, and when the interlocking member corresponds to the retention groove, the interlocking member returns to an initial state
Data Source
AI summary
The present invention is a paint tool with a replaceable blade, comprising: a main body, a blade, and two side covers. The main body comprises a support surface, a blade retaining flange, and two engagement recesses, with an insertion slot formed between the support surface and the blade retaining flange. The blade is detachably assembled with the insertion slot, and at least one side cover comprises a first cover body and a second cover body. The second cover body is detachably disposed on one side of the first cover body and corresponds to the insertion slot. When the second cover body is detached, the blade can be disengaged from the insertion slot along a first direction. Thus, the present invention provides the advantages of simple disassembly and easy blade replacement.