Head-Mount Display Side Ribs for Weight and Strength
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Solution Overview
Problem
Head-mount type image display devices face challenges in balancing weight reduction with maintaining the strength of side parts, which can lead to distortion under external impact.
Innovation Solution
Incorporating ribs on the side surface parts that extend in crossing directions to enhance strength while allowing for a thinner design, and using a metallic frame member to integrate support and side surface parts, thereby increasing resistance to impact and reducing weight.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Weight of moving object
If the side end parts are thinly formed to reduce weight, then the weight of the head mounted display is reduced, but the strength of the side end parts decreases making them susceptible to distortion under impact
Solution Approach 1:
The patent introduces ribs extending in the thickness direction of the side end parts, adding structural elements along the Z-axis dimension. This dimensional addition creates reinforcing structures (first and second ribs) that increase strength without increasing the overall footprint or lateral dimensions of the side end parts, thereby maintaining weight reduction while solving the strength deficiency.
Solution Approach 2:
The patent applies local reinforcement by adding ribs only to specific areas of the side end parts where strength is needed. The first rib and second rib are strategically positioned to provide localized strengthening at critical stress points, rather than uniformly thickening the entire side end part. This allows weight reduction in non-critical areas while maintaining strength where required.
2Weight of moving object
If the side surface part is made thinner to reduce weight, then the weight is reduced, but the resistance to external impact decreases
Solution Approach 1:
The patent enhances impact resistance by adding ribs that extend in the thickness direction, utilizing the Z-axis dimension to create reinforcing structures. These ribs act as structural barriers that distribute and absorb impact forces, providing reliable protection against external impacts while keeping the side surface part thin and lightweight.
Solution Approach 2:
The ribs function as pre-positioned structural reinforcements that are built into the side surface part before impact occurs. These ribs create a reinforced framework that is ready to absorb and distribute impact forces, providing beforehand cushioning against potential external impacts without adding significant weight.
3Weight of moving object
If the side surface part is made thinner to reduce weight, then the weight is reduced, but the structural integrity deteriorates
Solution Approach 1:
The patent maintains structural integrity in thin side surface parts by introducing ribs that extend in the thickness direction. These three-dimensional reinforcing elements create a stiffened structure that prevents deformation and maintains compositional stability, allowing the side surface part to remain thin without sacrificing integrity.
Solution Approach 2:
The patent divides the side surface part into multiple segments by introducing ribs that create distinct structural zones. The first rib and second rib segment the thin side surface part into reinforced sections, allowing each segment to maintain its shape and structural integrity independently, preventing overall structural failure even when the overall thickness is reduced.
Data Source
AI summary
A head-mount type image display device includes a display section adapted to display an image, a frame member adapted to support the display section, and a case member attached to the frame member, the frame member includes a support part adapted to support the display section, and a side surface part extending from an end of the support part in a direction crossing the support part, the case member is combined with the side surface part to form a housing space adapted to house a housed member making a contribution to display of the image by the display section, and the side surface part includes a first rib extending along a first direction, and a second rib extending along a second direction crossing the first direction.