Notebook Handle Support Members Stress Dispersion
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Solution Overview
Problem
Conventional notebook personal computers with handles suffer from damage due to the 'first contact phenomenon' when carried, requiring a strong structure that increases weight and size, and lack protection for the outer case during handling.
Innovation Solution
An information processing unit with a handle and support members that protrude from the housing, featuring a rib structure that disperses stress and absorbs impact, allowing for a thin-walled outer case without significant weight increase, and includes a hinge mechanism to prevent deformation of the rotation axis.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the structure for fastening the handle is strengthened to withstand shock and load, then the handle can bear greater force, but the personal computer becomes larger or heavier
Solution Approach 1:
The support member is divided into multiple continuous projections extending from one side surface to adjacent side surfaces, distributing the load across multiple contact points rather than concentrating it in a single fastening location
Solution Approach 2:
The support member extends in multiple directions (from one side surface to pair of adjacent side surfaces) rather than simply perpendicular to the housing, creating a three-dimensional load distribution structure that enhances strength without increasing overall device dimensions
2Weight of moving object
If the outer case member is made thin-walled to reduce weight, then the personal computer becomes lighter, but the outer case lacks protection when corners contact surfaces during carrying
Solution Approach 1:
The support member with bent portions is pre-configured to extend beyond the housing corners, providing protective coverage before contact occurs during carrying, preventing direct impact on the thin-walled housing
Solution Approach 2:
The support member acts as an intermediary protective element between the thin-walled housing and external surfaces, absorbing impact forces during the first contact phenomenon before they reach the housing
3Device complexity
If the support structure is localized to only withstand handle load, then the structure is simpler, but it does not protect the outer case during carrying
Solution Approach 1:
The support member serves multiple functions simultaneously: it supports the handle load, protects housing corners from impact during carrying, and reinforces the overall structure, eliminating the need for separate protective components
Data Source
AI summary
An information processing unit of the present invention includes: a housing that incorporates an information processor; a handle arranged on one side surface of the housing; and support members that are arranged on the one side surface of the housing to protrude and support the handle. The support members respectively are arranged continuously from the one side surface to a pair of other side surfaces adjacent to the one side surface in a direction in which the handle is bridged. Each of the support members has a bent portion between the one side surface and each of the other side surfaces. Thus, a stress applied between the first housing and a handle mechanism when, for example, a user carries a notebook PC holding a handle can be dispersed, so that the handle can be fixed to the first housing with improved strength.