Replaceable Slipper Upper Structure for Fit and Easy Cleaning
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Solution Overview
Problem
Conventional slippers have monotonous designs with integrated uppers, poor compatibility for different foot shapes, and complex structures that are difficult to clean.
Innovation Solution
A slipper design with a replaceable upper, featuring left and right retaining edges on the sole with through holes for detachable connection, using hook-and-loop fasteners for easy assembly and adjustment, and a simple structure that allows quick replacement and cleaning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the upper is made non-removable in conventional slippers, then the structure is simple and integrated, but cleaning becomes inconvenient and the appearance is monotonous
Solution Approach 1:
The slipper is divided into two separable parts: a sole body and an upper. The upper can be detached from the sole body through through-holes, allowing the upper to be removed for cleaning or replacement while the sole body remains. This segmentation resolves the contradiction by enabling convenient cleaning while maintaining a relatively simple overall structure.
2Stability of the object's composition
If the joint portion uses rigidly set fasteners, then the structure is stable, but compatibility for different foot shapes is poor
Solution Approach 1:
The fastening system is made adjustable rather than fixed. The through-holes are positioned to allow the upper to be fastened at different locations, enabling users to adjust the fit according to their foot shape. This dynamic adjustability maintains joint stability while improving compatibility for different foot shapes.
3Strength
If multiple components (stopper, protrusion, fastening strip tail) are exposed on the side wall, then the fastening function is achieved, but the side portion presses against the foot during walking
Solution Approach 1:
The problematic exposed components (stopper, protrusion, fastening strip tail) are extracted or repositioned so they do not protrude from the side wall of the sole. The through-holes are designed to allow fastening without creating external protrusions that would press against the foot, eliminating the harmful effect while maintaining the fastening function.
4Ease of manufacture
If the groove and mounting hole are open cavities, then the upper can be mounted, but dirt accumulates in these cavities causing hygiene risks
Solution Approach 1:
The upper itself acts as a flexible cover that spans across the through-holes. When the upper is attached, it covers the through-holes and prevents dirt from accumulating in them. The upper functions as a flexible film that seals the potential cavities, eliminating the hygiene issue while maintaining the mounting capability.
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 design provides personalized fit, improved comfort, and easy cleaning by locating bonding surfaces externally, reducing pressure on the foot, and extending the upper's lifespan.
Implementation Method 1
two ends of the upper are provided with hook-and-loop fasteners configured to be bonded to the outer surface of the upper
Data Source
AI summary
A slipper having a replaceable upper comprises a sole and an upper, left and right side edges of an upper surface of the sole extend upwards to respectively form a left retaining edge and a right retaining edge, the left retaining edge is provided with a left through hole in the width direction of the sole, the right retaining edge is provided with a right through hole in the width direction of the sole, and two ends of the upper respectively pass through the left and right through holes to form a detachable connection with an outer surface of the upper; two ends of the upper are respectively inserted from inner side surfaces of the left and right retaining edges, correspondingly pass through the left and right through holes, and are then folded back to be bonded and fastened to the outer surface of the upper.