Adjustable Strap for Head-Mounted Display with Integrated Locking Mechanism

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Solution Overview

Problem

Current head-mounted display devices require complex mechanical designs and numerous parts to allow easy adjustment and fixation, increasing costs and assembly complexity.

Innovation Solution

An adjustable strap with a body, sliding member, limiting member, and engaging member, featuring a slot section and control section that allow for sliding and locking without additional accessories, reducing the number of parts and costs.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If complicated mechanical design is adopted to allow easy tightening and release, then ease of operation is improved, but device complexity and cost increase

Engineering Contradiction:
Improveease of tightening and releaseVSAvoidmechanical design complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The patent merges the adjusting member and limiting member into a single integrated component that performs both adjustment and limiting functions. The adjusting member includes an adjusting section that engages with the slot and a limiting section that restricts movement range, combining what would traditionally be separate mechanical components into one unified structure, thereby simplifying the overall mechanical design while maintaining ease of operation

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The adjusting member serves multiple functions simultaneously: it adjusts the length of the strap, limits the movement range through the limiting section, and engages with the slot section for secure connection. This multi-functionality eliminates the need for separate adjustment mechanisms and limiting devices, reducing device complexity while preserving user-friendly operation

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Ease of operation

If complicated mechanical design with large number of parts is used, then ease of operation is improved, but manufacturing cost increases

Engineering Contradiction:
Improveease of adjustmentVSAvoidmanufacturing cost
Core Design Contradiction:
Ease of operationVSEase of manufacture

Solution Approach 1:

The patent combines multiple functional components into the adjusting member, which integrates the adjusting section and limiting section into a single manufacturable part. This reduction in part count directly lowers manufacturing costs while maintaining the ease of adjustment feature, as the integrated design eliminates assembly steps and reduces inventory requirements

Inventive Principle:
Principle #5Merging (Combining)

3Ease of operation

If complicated mechanical design is adopted, then ease of operation is improved, but assembly difficulty increases

Engineering Contradiction:
Improveease of tightening and releaseVSAvoidassembly difficulty
Core Design Contradiction:
Ease of operationVSEase of manufacture

Solution Approach 1:

The adjusting member is designed as an integrated component where the adjusting section and limiting section are formed as one piece. This integration significantly simplifies assembly, as the single component can be directly installed into the slot section without requiring assembly of multiple separate mechanical parts, thereby reducing assembly difficulty while preserving ease of operation

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

While the adjusting member is integrated, the overall strap structure is segmented into distinct functional sections: the slot section with engaging portion, the adjusting member with adjusting and limiting sections, and the body. This functional segmentation allows each component to be optimized independently while simplifying the assembly process through clear interface definitions

Inventive Principle:
Principle #1Segmentation

Data Source

PatentUS10571073B1Adjustable strap and head mounted display device
Publication Date: 2020.02.25 HTC CORP
  • US10571073B1 patent drawing
  • US10571073B1 patent drawing
  • US10571073B1 patent drawing

AI summary

An adjustable strap and a head mounted display device are provided. The adjustable strap includes a body, a sliding member, a limiting member, and an engaging member. The body has a slot section and a control section. The slot section has a slot and an engaging portion. The control section has a through hole. The slot section and the control section overlap. The sliding member and the limiting member pass through the slot and the through hole for connection. The engaging member and the control section pass through the slot for fixed connection. The sliding member and the limiting member are configured to slide between a first end and a second end of the through hole. When the sliding member and the limiting member are at the first end, the limiting member restricts an engaging end of the engaging member to be away from the engaging portion, such that the slot section and the control section are relatively slidable. When the sliding member and the limiting member are at the second end, the limiting member releases restriction of the engaging end, such that the engaging end engages the engaging portion to restrict relative sliding between the slot section and the control section.