Roller with Outer Ring Cover to Prevent Hair and Debris Entanglement
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Solution Overview
Problem
Rollers used in mobile bases or transfer bases often have gaps that easily entangle with hairs or debris, leading to delayed rolling and cleaning difficulties in environments like hairdressing shops or textile rooms.
Innovation Solution
A roller design featuring a support frame with symmetrically arranged single wheels, an annular mounting groove on the inner surface of each wheel, and an outer ring cover that fits into the groove, creating a gap to prevent entanglement, along with a connecting shaft through a central hole and additional structural features like inner and outer ring covers and reinforcing ribs for enhanced protection and cleanliness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If a gap is provided between the outer cover and the roller to ensure high efficiency rotation, then the rotation efficiency is improved, but the gap easily entangles with hairs or debris
Solution Approach 1:
The patent extracts the harmful function of the gap by introducing a protective cover that surrounds the roller. The protective cover isolates the gap from external contaminants (hairs, debris) while preserving the gap's beneficial function for rotation efficiency. This separates the contamination risk from the rotation mechanism.
Solution Approach 2:
The protective cover acts as an intermediary element between the external environment and the roller gap. It mediates by allowing rotation to occur efficiently while blocking contaminants from entering the gap, thus resolving the contradiction between rotation efficiency and contamination prevention.
2Stability of the object's composition
If the gap is filled up due to long-term accumulation of debris, then the roller structure is maintained, but the roller shows delayed rolling
Solution Approach 1:
The protective cover extracts the accumulation problem by providing a enclosed space that prevents debris from entering and filling the gap. This maintains the structural integrity of the roller assembly while preventing the degradation of rolling speed that would occur without the cover.
3Speed
If the gap between outer cover and roller is designed, then rotation efficiency is improved, but cleaning the gap becomes difficult
Solution Approach 1:
The protective cover serves as an intermediary that transforms the cleaning task. Instead of cleaning the gap directly (which is difficult), the cover can be removed as a separate component, allowing easy access to the gap for cleaning while maintaining rotation efficiency during operation.
Solution Approach 2:
The roller assembly is segmented into separable components: the protective cover, the outer cover, and the roller. This segmentation allows the protective cover to be removed for cleaning purposes while the roller maintains its efficient gap design during operation, resolving the contradiction between rotation efficiency and cleaning ease.
Data Source
Figure 1~2
Figure 3
AI summary
The present invention provides a roller comprising a support frame (1), the support frame comprising a vertical support wall, mounting positions being symmetrically arranged on two sides of the vertical support wall, and two single wheels (2) being symmetrically arranged on the mounting positions on the two sides of the support wall. An inner surface of the single wheel is provided with an annular mounting groove, an annular outer ring cover (11) is arranged on the mounting positions on the two sides of the support frame (1), the outer ring cover (11) is inserted into the annular mounting groove, and a gap is provided between a side wall of the outer ring cover and a side wall of the annular mounting groove. With the structure of the insert connection between the outer ring cover and the single wheels, the present application completely prevents the connecting shaft from being entangled with hairs or debris so as to ensure the cleanliness and high-speed rotation of the roller.