Wearable Magnetic Strap Segmentation for Adjustable Fit

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Solution Overview

Problem

Wearable devices with straps in prior art fail to accommodate varying wrist sizes due to fixed buckle structures, which cannot be easily adjusted or disassembled to fit different users.

Innovation Solution

The wearable magnetic strap system consists of two magnetic straps molded from a plastic and magnetic powder mixture, allowing gapless attachment and attraction, enabling adjustable and easy assembly/disassembly, with optional through holes for precise adjustment and a woven protective layer for comfort.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If fixed buckle structures are disposed on straps to realize fixing of the straps, then the straps can be secured to the wearable device, but the straps cannot be adjusted to fit different wrist sizes

Engineering Contradiction:
Improvefixing reliabilityVSAvoidadaptability to different wrist sizes
Core Design Contradiction:
ReliabilityVSAdaptability or versatility

Solution Approach 1:

The strap is divided into multiple detachable magnetic segments that can be independently adjusted. Each segment contains magnetic portions that can attract and hold adjacent segments at different positions, allowing the strap to be segmented and reconfigured to fit various wrist circumferences while maintaining secure fixation.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The magnetic attachment mechanism enables dynamic adjustment of the strap configuration. The magnetic portions can be easily attached and detached, allowing the strap to transition between different lengths and configurations to adapt to different users and wrist sizes, replacing static fixed buckle structures.

Inventive Principle:
Principle #15Dynamics

2Ease of operation

If magnetic structures are disposed on straps to facilitate wearing, then the straps can be easily attached, but the magnetism weakens after long-term use

Engineering Contradiction:
Improveease of attachmentVSAvoidmagnetic strength
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The magnetic portions are embedded within a plastic housing structure, creating a composite material system. This protects the magnetic components from degradation while maintaining their magnetic properties. The plastic enclosure shields the magnets from environmental factors that could cause weakening, ensuring long-term magnetic strength while preserving easy attachment functionality.

Inventive Principle:
Principle #40Composite materials

3Reliability

If magnetic portions are molded from plastic and magnetic powder mixture to enable gapless attachment, then the straps can be securely connected, but the manufacturing complexity increases

Engineering Contradiction:
Improveattachment securityVSAvoidmanufacturing complexity
Core Design Contradiction:
ReliabilityVSEase of manufacture

Solution Approach 1:

The magnetic portions and plastic housing are merged into a single integrated component through injection molding. The magnetic powder is mixed with the plastic material before molding, combining two functional elements (structural housing and magnetic attachment) into one manufacturing step. This reduces assembly complexity while ensuring secure gapless attachment between strap segments.

Inventive Principle:
Principle #5Merging (Combining)

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

This solution provides a wearable device that can be conveniently adjusted to fit different wrist sizes, offering greater accuracy and comfort by allowing the magnetic straps to be freely fixed and disassembled, accommodating various user needs.

Implementation Method 1

the first magnetic strap and the second magnetic strap are gaplessly attached to each other and attracted to each other

Methodology Applied
Scientific EffectMagnetic attraction: Magnetism

Data Source

PatentUS11944168B1Wearable magnetic strap and wearable device
Publication Date: 2024.04.02 YUE WENYONG
  • US11944168B1 patent drawing
  • US11944168B1 patent drawing
  • US11944168B1 patent drawing

AI summary

A wearable device and a wearable magnetic strap are disclosed. The wearable device includes a first magnetic strap, a second magnetic strap, and a wearable component. One end of the first magnetic strap is fixed on the wearable component, and one end of the second magnetic strap is fixed on the wearable component. The first magnetic strap and the second magnetic strap are molded from a mixture of plastic and magnetic powder, and the first magnetic strap and the second magnetic strap are gaplessly attached to each other and attracted to each other.