Shoe horn
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Solution Overview
Problem
Conventional shoe horns are limited in their scope of application and are uncomfortable to use due to their narrow design, making them difficult to hold and use effectively, especially for individuals who have difficulty bending or require assistance with footwear.
Innovation Solution
A dual-purpose shoe horn with a trapezoid-shaped blade, a guard, a steel tube grip, and a wedge with a pommel, designed for balance and usability, allowing it to be used as both a shoe horn and a close combat weapon, featuring a press-fitted assembly and adjustable balancing mechanism.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the shoe horn is designed with a narrow blade and simple structure, then it is easy to manufacture, but it is uncomfortable to hold and has limited scope of application
Solution Approach 1:
The shoe horn is divided into distinct functional segments: a narrow blade for insertion, a guard for protection, a grip tube for comfortable handling, and a wedge with pommel for balance and weapon functionality. This segmentation allows each part to be optimized independently while maintaining ease of manufacture through modular assembly via press-fitting.
Solution Approach 2:
The shoe horn is designed to serve multiple functions: it acts as a traditional shoe horn for putting on footwear, a fencing weapon for close combat practice, and a balanced sporting equipment. The multi-functional design expands its scope of application while maintaining manufacturability through standardized components.
2Ease of manufacture
If the shoe horn is designed with a narrow blade, then it is easy to manufacture, but it has limited scope of application
Solution Approach 1:
The shoe horn is designed to serve multiple functions: it acts as a traditional shoe horn for putting on footwear, a fencing weapon for close combat practice, and a balanced sporting equipment. The multi-functional design expands its scope of application while maintaining manufacturability through standardized components.
Solution Approach 2:
The design adds dimensional complexity by incorporating a guard, grip tube, and wedge with pommel, transforming a simple one-dimensional blade into a multi-dimensional object that functions both as a shoe horn and a fencing weapon, thereby expanding its versatility.
3Adaptability or versatility
If the shoe horn adds a guard, grip tube, and wedge with pommel, then it becomes balanced and multi-functional, but the device complexity increases
Solution Approach 1:
The complex multi-functional shoe horn is divided into separable segments (blade, guard, grip tube, wedge with pommel) that can be manufactured independently and assembled through press-fitting. This segmentation reduces manufacturing complexity while maintaining the dual-purpose functionality.
Solution Approach 2:
The invention merges the shoe horn function with fencing weapon functionality by combining components from both domains into a single integrated device. The guard, grip tube, and wedge with pommel are merged with the blade to create a balanced dual-purpose tool that reduces overall device complexity through functional integration.
Data Source
AI summary
The invention relates to the field of satisfying human needs and specifically relates to the structure of a device for putting on footwear. The shoe horn consists of a blade in the form of a trapezoid rod with a longitudinal groove along its entire length. The guard is mounted on the blade using the press fitting method. A grip is shaped as a steel tube and press fitted on the narrowed part of the blade and touching the guard. A wedge with a pommel is press fitted into the tube of the grip. The design of the invention ensures perfect balance of the shoe horn.