Device for mangling laundry
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Solution Overview
Problem
Trough ironers experience reduced quality and limited service life due to the warping and condensing of their windings over time, leading to frequent replacements.
Innovation Solution
The ironer roller and belt designs incorporate a base layer of interconnected links with a fleece layer, providing three-dimensional reinforcement for stability and flexibility, allowing the wrapping or belt to maintain shape and extend service life.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional windings are used on mangle rollers, then the structure is simple and easy to manufacture, but the winding changes shape over time, becomes distorted and compacted, reducing service life
Solution Approach 1:
The patent applies composite materials by combining a metal base layer with a textile winding layer. The metal base layer provides structural stability and shape retention, while the textile winding layer provides the necessary flexibility and function. This composite structure resolves the contradiction by preventing the winding from changing shape over time while maintaining manufacturability through standardized composite construction methods.
Solution Approach 2:
The patent introduces a third dimension by adding a metal base layer beneath the traditional textile winding. This additional dimensional layer provides structural support that prevents distortion and compaction, thereby extending service life without significantly complicating the manufacturing process, as the base layer can be pre-formed and the winding applied conventionally.
2Stability of the object's composition
If the winding is made more stable to prevent shape changes, then service life is extended, but the flexibility and adaptability of the winding may be reduced
Solution Approach 1:
The composite structure of metal base layer plus textile winding resolves this contradiction by assigning different functional properties to each layer. The metal base layer ensures shape stability and resistance to distortion, while the textile winding layer maintains flexibility and adaptability to the mangle roller surface. Together they achieve both stability and adaptability simultaneously.
Solution Approach 2:
The patent segments the winding into two distinct functional components: a structural base layer for stability and a surface winding layer for flexibility. This segmentation allows each component to optimize its specific function without compromising the other, enabling the overall structure to be both stable and adaptable.
Data Source
Figure 1
Figure 2
Figure 3~4
AI summary
Ironers have windings (13) on their ironing roller and ironing belts, which are subjected to high loads during the ironing process. With known windings and ironing belts, this leads to settling and distortion, which impairs the ironing quality. The invention provides for forming the winding and/or the ironing belt from a base layer (36) and a nonwoven layer (44) assigned to at least one side of this base layer (36). The nonwoven layer (44) is preferably bonded to the base layer (36) by needles. The base layer (36) forms a stable three-dimensional support layer for the nonwoven layer (44), thereby effectively stabilizing the ironing belt or winding and allowing it to be used for longer periods without settling or distortion.