Accessory Unit with Segmented Flap and Rigid Frame
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Solution Overview
Problem
Existing accessory units for consumer electronic devices lack advanced features for enhanced protection and functionality, such as improved flexibility and structural reinforcement while maintaining compatibility with various device configurations.
Innovation Solution
A composite accessory unit design featuring a front flap with segmented panels and folding regions, a rear cover with a recessed portion and a rigid frame for interference fit, and a method of forming a reinforced multi-sided composite structure using unidirectional fiber layers and reinforcing agents, allowing for increased structural strength and flexibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a rigid frame is used to retain the consumer electronic device, then structural strength and device retention are improved, but flexibility and adaptability to different device configurations are worsened
Solution Approach 1:
The accessory unit is divided into distinct segments: a rigid frame portion and a flexible portion. The rigid frame provides structural strength for device retention, while the flexible portion allows adaptability to different device configurations. This segmentation resolves the contradiction by assigning different mechanical properties to different parts of the same component.
Solution Approach 2:
Different regions of the accessory unit are given different material properties: the frame portion is made rigid for structural support, while the recessed portion is made flexible for adaptability. This local differentiation of material quality allows the same component to simultaneously provide both strength and flexibility where needed.
2Ease of operation
If the front flap is made fully flexible to allow folding, then adaptability and ease of operation are improved, but structural strength and alignment stability are worsened
Solution Approach 1:
The front flap is segmented into a rigid end segment and flexible portions. The rigid end segment provides structural strength and alignment stability, while the flexible portions enable folding motion. This segmentation allows the flap to simultaneously achieve ease of operation through folding and maintain alignment stability through the rigid segment.
Solution Approach 2:
The front flap combines rigid and flexible materials or material states in a single component. The rigid end segment maintains structural integrity and alignment, while the flexible portions allow bending and folding. This composite structure resolves the contradiction between flexibility for operation and strength for stability.
Data Source
Figure 1A
Figure 1B
Figure 2A
AI summary
An accessory unit includes a front flap and a rear cover. The rear cover includes a recessed portion that defines a chamber and a frame that extends about an opening of the chamber. The chamber is configured to receive a consumer electronic device, and the frame is configured to hold the consumer electronic device therein. For example, the frame may define a multi-sided cross-section with an inner edge thereof configured to engage a chamfered edge of the consumer electronic device. The front flap may include segments formed from panels with folding regions therebetween, which allow the front flap to fold. Further, an end region of the front flap hingedly couples the front flap to the rear cover, such that the front flap may be moved between open and closed configurations.