Adjustable Paint Brush With Triangular Engagement Mechanism
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Solution Overview
Problem
Existing paint brush systems lack a safe, convenient, and economical method for adjusting the angle of the handle during use, which can lead to inefficiencies and safety concerns while painting, especially at elevated locations.
Innovation Solution
A paint brush system comprising a lower component with a cylindrical handle and an upper component with bristles, connected by an adjustment assembly featuring triangular teeth and recesses, allowing for adjustable angles and secure attachment without axial forces, facilitating safe and convenient painting at various heights.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a fixed-angle brush system is used, then the structure is simple and manufacturing cost is low, but the painter cannot adjust the angle for safe and convenient painting at elevated locations
Solution Approach 1:
The brush system transitions from a fixed-angle design to a dynamic, adjustable-angle design. The handle can be rotated relative to the brush head through the adjustment assembly, allowing the painting angle to be changed during operation to suit different working conditions and elevated locations.
Solution Approach 2:
The brush is divided into separate components: a handle component and a brush head component, connected by an adjustment assembly. This segmentation allows independent rotation and adjustment of the handle relative to the brush head, enabling angle adjustment while maintaining relatively simple individual component structures.
2Adaptability or versatility
If an adjustment mechanism is added to the brush, then angle adjustability is improved, but the manufacturing cost and device complexity increase
Solution Approach 1:
The adjustment mechanism enables dynamic angle changes without requiring complex mechanical systems. The rotation feature allows the handle to be positioned at various angles relative to the brush head, providing adaptability for different painting scenarios while keeping the mechanism relatively simple.
Solution Approach 2:
The adjustment assembly serves multiple functions: it allows angle adjustment, provides secure attachment between handle and brush head, and enables easy disassembly and reassembly. This multi-functionality reduces the need for separate mechanisms, potentially lowering manufacturing costs while improving versatility.
3Reliability
If the handle is held at fixed positions, then the attachment is simple, but safety and convenience are compromised when painting at elevated locations
Solution Approach 1:
The attachment mechanism transitions from a fixed-position design to a dynamic, adjustable design. The handle can be rotated to different angles and secured at various positions, allowing the painter to adjust the brush angle for safe and convenient operation at elevated locations while maintaining a relatively simple attachment structure.
Solution Approach 2:
The adjustment assembly allows the user to easily adjust and secure the handle angle without requiring complex tools or mechanisms. The triangular recesses and protrusions enable simple engagement and disengagement, making the system self-sufficient for angle adjustment while maintaining safety and convenience.
Data Source
AI summary
A paint brush system. A lower component has a handle with an axis and a lower disk. The lower disk has interior and exterior surfaces. The axis of the lower disk is at a right angle with respect to the axis of the handle. An upper component has a base with bristles in a bristle plane. The upper component has an upper disk with interior and exterior surfaces. The axis of the upper disk is at a right angle with respect to the axis of the base. An adjustment assembly is intermediate the upper and lower components. The adjustment assembly includes teeth projecting axially outwardly from one of the disks. An annular surface is radially exterior of the teeth. The adjustment assembly includes recesses projecting axially inwardly from the other disk. An annular surface is radially exterior of the recesses.