Structured Mangle Belt Surface to Prevent Laundry Slippage
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Solution Overview
Problem
Existing laundry ironing devices, particularly older mangle belts, often cause slippage during the ironing process, leading to reduced surface quality and increased wrinkles in laundry due to inadequate friction, which impairs the ironing quality.
Innovation Solution
The introduction of a structured outer surface on the mangle belt with a roughened or roughened surface design that enhances friction, ensuring the laundry items adhere to the belt without slipping, along with longitudinal and transverse stiffeners to maintain dimensional stability and prevent stretching or wrinkling, and the use of a felt-like material with high friction coefficients for effective transport.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a smooth mangle belt surface is used, then the belt provides good sliding properties for laundry items, but the belt causes slippage during transport leading to wrinkles and reduced surface quality
Solution Approach 1:
The mangle belt is designed with different surface properties in different areas: the outer surface has a structured, roughened design with high friction coefficient to prevent slippage, while the inner surface remains smooth to provide good sliding properties against the laundry items. This local differentiation resolves the contradiction between preventing slippage and maintaining ease of operation.
Solution Approach 2:
The invention changes the surface parameter of the mangle belt by introducing a structured outer surface with enhanced roughness and higher friction coefficient. This parameter change allows the belt to maintain firm grip on laundry items during transport without causing slippage, thereby improving surface quality while preserving operational efficiency.
2Reliability
If the mangle belt has a structured roughened outer surface to prevent slippage, then transport reliability improves, but the belt may stretch or deform affecting dimensional stability
Solution Approach 1:
The mangle belt is constructed as a composite structure with a flexible base material providing elasticity and comfort, combined with a structured outer surface layer providing high friction and grip. This composite design allows the belt to maintain dimensional stability and resist stretching while ensuring reliable transport of laundry items without slippage.
Solution Approach 2:
The structured outer surface of the mangle belt features a curved or spheroidal pattern rather than a flat surface. This curvature increases the surface area and friction contact with laundry items, enhancing grip and preventing slippage during transport, while the overall belt structure maintains dimensional stability through proper material selection and construction.
3Reliability
If the mangle belt uses high friction material to adhere laundry items, then slippage is prevented, but the belt complexity increases due to multiple layers and structures
Solution Approach 1:
Instead of making the entire belt complex, the invention applies the structured, roughened high-friction surface only to the outer contact surface of the belt, while the inner and side surfaces remain simple and smooth. This localized approach achieves reliable adhesion where needed without unnecessarily increasing overall belt complexity.
Solution Approach 2:
The mangle belt is segmented into distinct functional layers: a simple base structure providing structural support and an outer structured surface layer providing high friction and adhesion. This segmentation allows each layer to be optimized independently, achieving reliable adhesion while keeping the overall design manageable and not excessively complex.
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
This solution ensures reliable, slip-free transport of laundry items, maintaining high ironing quality by preventing wrinkles and ensuring consistent contact with the flattening surface, thereby improving the overall surface finish of ironed items.
Implementation Method 1
the outer surface of the at least one mangle belt is structured in such a way that it takes the laundry items along in a frictional manner without slipping
Data Source
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AI summary
Belt mangles (10) are known in which a revolvingly driven mangle belt (18) runs along the outside of the mangle body (11), which is preferably curved like a trough, and transports the items of laundry to be ironed along a smooth flattening surface (12) of the mangle body (11). A disadvantage of these known belt mangles (10) is slippage between the mangle belt (18) and the items of laundry, as a result of which the mangle quality suffers. The invention provides for the mangle belt to be provided with a structured outer surface (20) for the laundry items to be taken along to rest against. The outer surface is preferably formed from a needled felt made from high-temperature-resistant plastic fibers. As a result of the structuring of the outer surface (20) of the mangle belt (18) that carries the items of laundry along, a rough driving surface or adhesive surface is created for the items of laundry, which ensures that the items of laundry are carried along by the mangle belt (18) without slipping when the items of laundry are transported narrowly on the flattening surface (12) of the mangle body (11) guaranteed.