Covered Multi-Axis Hinge with Integrated Sequencing
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Solution Overview
Problem
Existing multi-axis hinge assemblies for computing devices lack effective protection and control mechanisms, leading to potential damage from foreign objects and user safety concerns, while also compromising on aesthetics and stability during rotation.
Innovation Solution
A covered, sequentially rotating multi-axis hinge assembly (CSRMA) with integrated hinge covers that function as both protective shields and timing elements, utilizing friction engines and sequencing pins to control the rotation order and stabilize the device, while allowing for quick attachment and detachment of device portions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If hinge covers are added to protect internal components, then protection and safety are improved, but device complexity increases
Solution Approach 1:
The hinge cover is merged with the sequencing element into a single integrated component. The cover includes windows that align with friction engines, and sequencing pins extend through the cover to control rotation timing. This integration provides both protection and sequencing functionality without requiring separate components.
Solution Approach 2:
The hinge cover serves multiple functions simultaneously: it protects internal hinge components from foreign objects, provides aesthetic coverage, and acts as a timing element for sequential rotation through its integrated windows and sequencing pins. This multi-functionality resolves the contradiction by improving reliability without proportionally increasing complexity.
2Ease of operation
If sequencing elements are integrated into hinge covers, then rotation control is improved, but manufacturing complexity increases
Solution Approach 1:
The hinge cover is divided into multiple functional zones: windows for exposing friction engines, openings for receiving sequencing pins, and integrated rotation limiters. This segmentation allows each feature to be manufactured and assembled independently, reducing overall manufacturing complexity despite the multi-functional design.
Solution Approach 2:
The hinge cover is designed with pre-formed windows, openings, and rotation limiters that are created during the covering member formation process. These features are prepared in advance to receive and work with the friction engines and sequencing pins, simplifying the final assembly process and reducing manufacturing complexity.
3Adaptability or versatility
If multiple friction engines are used for multi-axis rotation, then functionality is improved, but stability during rotation deteriorates
Solution Approach 1:
Sequencing pins act as intermediaries between the friction engines and the hinge cover. These pins extend through the cover and engage with cam surfaces on the friction engines, mediating the rotation sequence and providing stable, controlled motion. The pins ensure that friction engines rotate in a predetermined sequence rather than simultaneously, improving rotation stability.
Solution Approach 2:
The cam surfaces on the friction engines provide mechanical feedback to the sequencing pins. As each friction engine rotates, its cam surface interacts with the sequencing pin to control the timing and sequence of rotation. This feedback mechanism ensures stable, predictable rotation behavior across multiple axes.
4Ease of operation
If hinge covers with windows and openings are created, then rotation sequencing is improved, but aesthetics deteriorate
Solution Approach 1:
The hinge cover is designed with localized features: windows are positioned only where needed to expose friction engines for visual feedback, and openings are created only where sequencing pins require access. The majority of the cover surface remains solid and aesthetically pleasing, while local areas are modified to provide necessary functionality.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The CSRMA hinge assembly provides a robust, aesthetically pleasing, and stable solution by protecting internal components, controlling rotation sequencing, and enhancing user safety, while allowing for versatile device configurations and improved stability during use.
Implementation Method 1
multiple interconnected friction engines, wherein an individual friction engine defines an axis of rotation
Data Source
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AI summary
The description relates to devices, such as computing devices that have hinged portions. One example can include a first portion and a second portion. This example can also include multiple interconnected friction engines that secure the first portion and the second portion. An individual friction engine can define an axis of rotation of the first portion relative to the second portion. The example can also include sequencing elements that control a relative order of rotation of the multiple interconnected friction engines and overlapping hinge covers that protect the multiple interconnected friction engines and stabilize the timing elements.