Head-Mounted Device Strap Adjustment Mechanism
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Solution Overview
Problem
Existing head-mounted devices for virtual and augmented reality are uncomfortable and unattractive due to the need for a special device during strap tightness adjustment.
Innovation Solution
A head-mounted device design featuring a strap assembly that connects the host housing and a second housing to form a wearable ring frame, with a force receiving member arranged obliquely on the forehead to provide stable support.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a special device is used for strap tightness adjustment, then the strap can be adjusted, but the user experiences discomfort and the appearance becomes unattractive
Solution Approach 1:
The patent removes the special adjustment device from the front view by integrating the adjustment mechanism into the side profile of the head-mounted device. The force receiving member is positioned on the side, allowing strap adjustment without a visible device on the front, thus eliminating the harmful appearance effect while maintaining adjustment functionality.
Solution Approach 2:
The adjustment mechanism is repositioned from a front-facing configuration to a side-profile configuration. The force receiving member extends obliquely on the side of the head-mounted device, allowing the adjustment operation to occur in a different spatial dimension that is not visible from the front, thereby resolving the contradiction between adjustability and appearance.
2Reliability
If the head-mounted device is worn with a strap, then the device can be secured, but the weight distribution causes discomfort
Solution Approach 1:
The force receiving member is segmented into multiple contact points distributed along the side profile of the head-mounted device. This segmentation allows the weight to be distributed across multiple points rather than concentrated at a single location, improving wear comfort while maintaining secure attachment through the strap assembly.
Solution Approach 2:
The force receiving member is positioned asymmetrically on the side profile of the head-mounted device, extending obliquely to contact the user's head at an optimized angle. This asymmetric positioning creates a more comfortable weight distribution pattern that conforms to the natural contours of the head, resolving the discomfort issue while preserving secure device attachment.
Data Source
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AI summary
Disclosed is a head-mounted device, relating to the technical field of intelligent devices. The head-mounted device comprises a first shell (41), two second shells (32) and a strap assembly (20), wherein the first shell (41) is provided with a first containing cavity and a second containing cavity, which are vertically separated from each other; the two second shells (32) extend out from two opposite sides of the first shell (41), and the two second shells (32) are provided with two third containing cavities which are in communication with the first containing cavity and are located on the left side and the right side of the first containing cavity; the part of the first shell (41) on one side of the second containing cavity exceeds the second shell (32); and the strap assembly (20) is connected to the first shell (41), the strap assembly (20) comprises a first headband (21) and a second headband (22), and one end of each of the first and second headbands (21, 22) are contained in the first containing cavity and the third containing cavity. The first shell (41) and the second shells (32) form a special shell, and a containing cavity is formed inside the special shell and used for containing the strap assembly (20) and a device for adjusting the tightness of a strap. By means of the special shell, the device for adjusting the tightness of the strap assembly is prevented from making direct contact with the human body, and the wearing comfort is increased.