Adjustable Shoe With Expandable Vamp And Straps

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Solution Overview

Problem

There is a need for a shoe design that can accommodate growing feet, as existing footwear does not adapt to increasing foot size effectively.

Innovation Solution

A shoe design featuring a sole that wraps upwardly with adjustable straps and a hitch fastener system, allowing for expansion by connecting a vamp member to the toe cap, medial and lateral sides, and an adjustable heel strap with a buckle, enabling the shoe to grow with the wearer's foot.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a shoe is designed with fixed size, then manufacturing simplicity is maintained, but adaptability to growing feet deteriorates

Engineering Contradiction:

Improveadaptability to growing feetVSAvoidshoe structure complexity

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The shoe is divided into multiple adjustable segments including vamp member, toe cap, medial straps, lateral straps, and heel strap. Each segment can be independently adjusted via fastening devices to accommodate growing feet while maintaining overall structural integrity.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The shoe incorporates dynamic adjustment mechanisms with multiple holes and fastening devices that allow the shoe size and fit to be changed over time. This enables the shoe to adapt to the growing foot without requiring replacement, resolving the contradiction between fixed structure and adaptability.

Inventive Principle:

Principle #15Dynamics

2Adaptability or versatility

If adjustable fastening systems are added, then adaptability improves, but ease of operation deteriorates

Engineering Contradiction:

Improveadjustability for growthVSAvoidease of adjustment

Core Design Contradiction:

Adaptability or versatilityVSEase of operation

Solution Approach 1:

Multiple holes are pre-positioned at predetermined locations along the straps and members. This preliminary arrangement of adjustment points allows for quick size changes without complex calculations or measurements, maintaining ease of operation while providing adaptability.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The fastening devices serve multiple functions: securing the shoe initially, adjusting for growth, and providing a secure fit at different stages. This multi-functionality reduces the need for separate adjustment mechanisms, maintaining operational simplicity.

Inventive Principle:

Principle #6Universality (Multi-functionality)

3Reliability

If the sole is wrapped upwardly on medial and lateral sides, then foot security improves, but device complexity increases

Engineering Contradiction:

Improvefoot security and fitVSAvoidsole construction complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The medial and lateral straps are integrated with the wrapped sole structure, combining the support function with the structural design. This merging reduces the need for separate support components, maintaining foot security while controlling construction complexity.

Inventive Principle:

Principle #5Merging (Combining)

Data Source

PatentUS10390585B2Shoe

Publication Date: 2019.08.27 BECAUSE INT

AI summary

A shoe that grows comprises a sole having a toe, medial side, lateral side, and heel. The toe of the sole extends outwardly to form a toe cap. A vamp member is adjustably connected to a free end of the toe cap. At least one medial strap connects the vamp member to the medial side of the sole. At least one lateral strap connects the vamp member to the lateral side of the sole. An adjustable heel strap connects to the medial and lateral sides of the sole and extends around the heel of the sole.