Head-Mounted Display Arm Assembly for Precise Repositioning
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Solution Overview
Problem
Existing head-mounted display systems lack efficient mechanisms for precise positioning and repositioning of the display unit relative to the user's eyes, limiting flexibility and usability, especially in applications requiring frequent adjustments between viewing information and interacting with the environment.
Innovation Solution
A head-wearable device with a dual-arm structure featuring a detent assembly, spherical extensions, and slidable mechanisms that allow for seven distinct motions, enabling the display to be positioned within the user's field of view and easily repositioned between in-use and stand-by orientations, facilitating hands-free operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a fixed display unit is used in head-mounted displays, then the structure is simple, but the positioning flexibility and adaptability are poor
Solution Approach 1:
The patent implements dynamic positioning mechanisms including a telescopic arm with adjustable length, a rotatable connection joint with rotational movement, and a ball joint with three-axis pivoting capability. These dynamic structures enable the display unit to be positioned at multiple locations and orientations, resolving the contradiction between positioning flexibility and structural complexity by providing adjustable functionality within a manageable mechanical framework.
Solution Approach 2:
The display support structure is divided into multiple independent segments: a base assembly, a telescopic arm with extendable sections, a connection joint, and a ball joint assembly. Each segment can be independently adjusted or positioned, allowing flexible configuration of the display unit while maintaining a modular structure that manages overall system complexity.
2Measurement precision
If multiple adjustment mechanisms are added to enable seven distinct motions, then the positioning precision and versatility are improved, but the device complexity increases
Solution Approach 1:
The patent combines multiple adjustment functions into integrated mechanical assemblies. The connection joint merges rotational movement with telescopic extension, while the ball joint combines three-axis pivoting with positional adjustment. This merging of functions into unified mechanisms achieves seven distinct motions with improved positioning precision while managing overall mechanism complexity through functional integration.
3Ease of operation
If the display unit can be repositioned frequently between in-use and stand-by positions, then the ease of operation is improved, but the reliability of the connection mechanisms may deteriorate
Solution Approach 1:
The connection mechanisms are designed to be easily engaged and disengaged by the user without requiring tools or complex operations. The telescopic arm, rotation joint, and ball joint can be quickly adjusted and locked into position through simple manual operations, enabling frequent transitions between in-use and stand-by positions while maintaining connection reliability through self-contained locking features.
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
The device provides precise and versatile positioning of the display, allowing for seamless transitions between viewing information and interacting with the environment, enhancing user experience and operational efficiency in applications like industrial use.
Implementation Method 1
a spherical bearing sized and dimensioned to mateably receive a portion of the spherical extension
Implementation Method 2
a first connector connected between the first assembly and the first end portion of the arm, the first connector including a detent assembly configured to releasably hold the arm
Data Source
Figure 1~4
Figure 5~8B
Figure 9~12
AI summary
A device wearable upon a head of a user with an adjustable assembly is provided. The device may comprise a first assembly including a wearable portion, an arm having a first end portion and a second end portion positioned at an end of the arm opposite to the first end portion, and a first connector connected between the first assembly and the first end portion of the arm, the first connector including a detent assembly configured to releasably hold the arm in an in-use position at a first distance from the head of the user and in a stand-by position at a second distance greater than the first distance. The device may further include a second connector connected to the second end portion of the arm, and an output display connected to the second connector.