Adjustable Headset Counterweight for Front-Heavy Balance
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Solution Overview
Problem
Head-mounted devices experience downward force on the user's head due to their weight, leading to discomfort, which existing technologies fail to adequately counterbalance.
Innovation Solution
A counterweight system is integrated into the head-mounted device, featuring a detachable and adjustable counterweight that can be removably coupled to the device's housing, allowing for rotational orientation and sliding mass adjustments to balance the weight distribution between the front and rear of the head, using straps for support.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Force
If a counterweight is added to the rear of the head-mounted device, then the downward force at the front of the user's head is counterbalanced, but the overall weight of the device increases
Solution Approach 1:
A counterweight is provided at the rear of the head-mounted device to counterbalance the downward force exerted by the housing at the front of the user's head. The counterweight creates an opposing moment that offsets the unbalanced force, improving comfort during extended use.
Solution Approach 2:
The counterweight is made adjustable through multiple mechanisms: it can be rotated about a detachable connection, a sliding mass can be repositioned within the counterweight structure, and the detachable connection allows for removal or reconfiguration. These adjustments enable the counterbalancing force to be customized to match different user preferences and device configurations.
2Device complexity
If the counterweight is made fixed, then the structure is simpler, but the ability to adjust counterbalancing force is reduced
Solution Approach 1:
The counterweight incorporates multiple adjustment mechanisms: rotation about a detachable connection allows angular repositioning, a sliding mass enables forward-backward positioning to adjust the center of gravity, and the detachable connection permits complete removal or reconfiguration. These dynamic features provide adaptability while maintaining reasonable structural complexity.
Solution Approach 2:
The counterweight is divided into separable components including a detachable connection interface, a rotatable portion, and a sliding mass that can be independently repositioned. This segmentation allows for flexible adjustment and simplifies manufacturing and assembly.
3Adaptability or versatility
If the counterweight is made detachable, then the device can be reconfigured for different uses, but the connection mechanism becomes more complex
Solution Approach 1:
The detachable connection separates the counterweight into modular components that can be independently assembled or disassembled. This segmentation enables reconfiguration for different uses while keeping each individual connection element relatively simple in design.
Solution Approach 2:
The detachable connection serves multiple functions: it allows the counterweight to be attached or removed, enables rotational adjustment when attached, and provides a standardized interface that could accommodate different counterweight configurations. This multi-functionality reduces the need for separate mechanisms for each operation.
Data Source
AI summary
A head-mounted device may include optical assemblies for presenting images to a user. The optical assemblies may be mounted in a head-mounted device housing. The head-mounted device housing may be supported at the front of the head of a user in front of the user's eyes using head-mounted support structures such as straps. The straps may include a rear strap and an overhead strap. A counterweight may be provided at the rear of the user's head to counterbalance the weight of the head-mounted device housing. The counterweight may be coupled to a rigid portion of the head-mounted housing at a connection. A clutch may be provided to allow the rotational orientation of the counterweight to be adjusted about the connection. A sliding mass in the counterweight may also be adjusted. These adjustments alter the amount of counterbalancing created by the counterweight to counterbalance the head-mounted device housing.