Thin-Walled Elastic Roller With Segmented Flanges for Low-Load Deformation
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Solution Overview
Problem
Existing elastic rollers are unsuitable due to high cost, complexity, and instability in surface speed, particularly when dealing with low loads and thick sheets, as they often require heavy metal cores, thick rubber, or intervening elastic flanges that cause shear elasticity and manufacturing inefficiencies.
Innovation Solution
A lightweight elastic roller design featuring a thin-walled cylindrical pipe with elastically deformable flanges of varying diameters and ribs, allowing for uniform deformation and reduced shear elasticity, covered with materials like silicone, urethane, or Teflon for enhanced friction and stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If rubber or plastic foamed body is provided over a metal core to achieve elasticity, then the roller can transport thin sheets of paper, but the roller becomes heavy and manufacturing cost increases
Solution Approach 1:
The patent employs a thin-walled cylindrical pipe structure that acts as a flexible shell, replacing the traditional heavy metal core with rubber covering. The thin-walled pipe itself provides the necessary elasticity through its structural design rather than relying on thick rubber layers, thereby reducing overall weight while maintaining elastic functionality for transporting thin sheets.
Solution Approach 2:
The flange is divided into multiple annular rings of different diameters that are integrated together. This segmentation allows the structure to achieve elasticity through the coordinated deformation of multiple ring segments rather than requiring a solid heavy core, reducing weight while maintaining structural integrity and elastic response.
2Reliability
If gas and liquid are sealed within an inner surface to create elastic roller, then elasticity is achieved, but the structure becomes complicated and cost increases
Solution Approach 1:
The patent extracts and eliminates the complex internal fluid sealing structure from the design. Instead of sealing gas and liquid within an inner surface, the invention achieves elasticity through the inherent properties of the thin-walled pipe structure and the integrated annular ring flanges, greatly simplifying the overall structure while maintaining elastic functionality.
Solution Approach 2:
The patent changes the fundamental parameter of how elasticity is achieved - from internal fluid pressure maintenance to structural elasticity of thin-walled materials and integrated ring configurations. This parameter change eliminates the need for complex sealing mechanisms while providing the required elastic response for sheet transport.
3Reliability
If multiple small-bore elastic tubes are arranged at the outer peripheral portion and covered by a large-bore elastic tube, then elasticity is achieved, but deformation varies under constant load causing contact pressure fluctuations
Solution Approach 1:
The patent merges the multiple tube structures into a single integrated thin-walled cylindrical pipe with integrated flanges. This unified structure ensures uniform deformation characteristics under constant load, eliminating the contact pressure fluctuations that occur with multiple separate tubes. The integrated design provides consistent elastic response across the entire roller surface.
4Reliability
If ring-like elastic bodies are disposed in intervening fashion to support hollow thin-walled cylindrical pipe, then elasticity is achieved, but shear deformation occurs causing surface speed fluctuation
Solution Approach 1:
The patent combines the flange structure with the cylindrical pipe into an integrated unit where the annular rings are directly formed as part of the pipe assembly. This merging eliminates the intervening elastic bodies that cause shear deformation, ensuring that the hollow thin-walled cylindrical pipe maintains stable surface speed during rotation while still providing the necessary elasticity for its function.
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 solution enables elastic deformation at low loads with stable surface speed, reduced manufacturing costs, and increased roller life by minimizing shear elasticity and maintaining consistent deformation across the roller surface.
Implementation Method 1
the cylindrical pipe (2a) is a thin-walled cylindrical pipe and comprises a material that deforms so as to produce a reactive-force-producing load and reactive-force-producing elasticity when a load is applied in an axial direction of this pipe
Implementation Method 2
the thin-walled cylindrical pipe (2a) and the flanges (3) at these two ends can both undergo elastic deformation in a same direction when a load abuts the thin-walled cylindrical pipe
Data Source
AI summary
An elastic roller is capable of elastic deformation at low load, lightweight and low-cost, and the surface speed of the roller has been made stable. At a drawing showing the view from the side of pipe 2 and flange 3 which make up roller 1, roller 1 which has pipe 2 and flange 3 is supported by shaft 8 which is inserted therein along axis 8a of shaft 8, the situation being such that elastic deformation occurs upon being pressed downward by pressure P from pressure-applying body 11 above pipe. None of the four outermost ribs 7a disposed in outermost gap 6a between outermost ring 4a of flange 3 and middle ring 4b which is mutually adjacent thereto and toward the interior therefrom is present in the upper portion of pipe 2.