Variable Last Shoe Fitting Measurement Device
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing shoe fitting evaluation methods fail to accurately assess the fitting of shoes when a wearer is active, as they do not account for the dynamic changes in foot shape and pressure distribution during movement.
Innovation Solution
A measurement device with a last that includes a pressure measurement unit and a gap measurement unit, featuring a variable portion whose shape, weight, and position can be changed, allowing for the simulation of various foot states, including standing and walking postures, to accurately evaluate shoe fitting while the wearer is active.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a last representing a foot of a wearer standing posture is used to measure wearing pressure, then the measurement is simple and straightforward, but the fitting evaluation when the wearer is active cannot be appropriately assessed
Solution Approach 1:
The last is designed with a variable portion that can change shape, weight, and position to dynamically represent different foot states during movement. This allows the measurement device to adapt to various active postures (walking, running, jumping) while maintaining measurement functionality, thereby improving fitting evaluation accuracy without requiring multiple separate measurement systems
Solution Approach 2:
The last incorporates a variable portion whose shape, weight, and position parameters can be adjusted to simulate different foot conditions during movement. By changing these parameters, the system can evaluate shoe fitting under various active conditions using a single measurement device, resolving the contradiction between measurement precision and device complexity
2Ease of manufacture
If the last is made fixed and simple, then the device is easy to manufacture and operate, but it cannot account for dynamic changes in foot shape and pressure distribution during movement
Solution Approach 1:
The last is divided into a main body portion and a variable portion that can be independently adjusted. This segmentation allows the majority of the last structure to remain simple and easy to manufacture, while only the variable portion requires complex mechanisms. The variable portion can be adjusted to simulate different foot states, providing versatility without significantly complicating the overall manufacturing process
Solution Approach 2:
The variable portion of the last serves multiple functions: it can change shape to represent different foot volumes, adjust weight to simulate load changes, and modify position to account for foot movement within the shoe. This multi-functionality is achieved through a single adjustable component, maintaining manufacturing simplicity while enhancing adaptability
Data Source
AI summary
A measurement device for shoe fitting evaluation is disclosed. The measurement device for shoe fitting evaluation includes a last insertable into a shoe, a pressure measurement unit configured to measure a wearing pressure on a top surface of a foot of the last, and a gap measurement unit configured to measure a gap between an end portion of the last and an end portion of the shoe. The last includes a main body portion and a variable portion. The variable portion is changeable in its shape, its weight, or its position with respect to the main body portion.