Glove Box Living Hinge Assembly for Dashboard Coupling
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Solution Overview
Problem
Traditional glove box assemblies for vehicles are time-consuming to install and prone to distortion, leading to decoupling of the glove box door from the dashboard substrate.
Innovation Solution
A glove box assembly featuring a living hinge with a hinge pin that is pivotably coupled to tabs on both the glove box door and dashboard substrate, utilizing an articulated connection and snap-fitting elements to secure the hinge pin's longitudinal position, preventing distortion and decoupling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional mounting elements are used to couple the glove box door to the dashboard substrate, then the installation process is simple, but the mounting elements are vulnerable to distortion and decoupling occurs
Solution Approach 1:
The mounting structure is segmented into multiple functional components: a hinge pin for pivotable coupling, a living hinge for retaining longitudinal position, articulated connections for flexibility, and snap-fitting elements for secure attachment. This segmentation allows each component to address specific functional requirements, improving overall coupling integrity while maintaining reasonable complexity through modular design.
Solution Approach 2:
The mounting structure incorporates dynamic elements including a pivotable hinge pin that allows controlled movement of the glove box door, a living hinge that provides resilient retention of the hinge pin's longitudinal position, and articulated connections that enable adaptive coupling. These dynamic features enhance reliability by allowing the structure to accommodate operational stresses while preventing decoupling.
2Productivity
If traditional installation methods are used for the glove box assembly, then the initial setup is straightforward, but the installation process is time-consuming
Solution Approach 1:
The mounting structure is designed with pre-configured features including pre-formed tabs, pre-positioned hinge pins, and pre-engineered snap-fitting elements that facilitate quick alignment and attachment. The articulated connections and retainers are built-in to guide the installation process, reducing the time required for proper assembly while maintaining straightforward installation procedures.
Solution Approach 2:
The living hinge and snap-fitting elements provide self-aligning and self-retaining functions during installation. The articulated connection automatically guides the hinge pin into its proper longitudinal position, and the snap-fitting elements self-lock once engaged, eliminating the need for additional fastening steps and significantly reducing installation time.
3Adaptability or versatility
If the hinge pin is allowed to move longitudinally within the tabs, then the glove box door has flexibility, but distortion occurs leading to decoupling
Solution Approach 1:
The mounting structure applies different constraints to different degrees of freedom of the hinge pin. The living hinge and articulated connections locally restrict longitudinal movement of the hinge pin within the tabs to prevent distortion and ensure coupling stability. Meanwhile, pivotable coupling is maintained to preserve the necessary flexibility for door operation. This localized differentiation of constraints resolves the contradiction between flexibility and stability.
Solution Approach 2:
The living hinge acts as an intermediary element between the hinge pin and the tabs. It retains the longitudinal position of the hinge pin while allowing the pivotable coupling to function, thereby mediating between the need for flexibility and the need for stability. The articulated connection serves as another intermediary that provides flexible coupling while preventing excessive movement that would lead to distortion.
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
Facilitates straightforward installation and maintains the integrity of the glove box door's coupling to the dashboard substrate by restricting longitudinal movement of the hinge pin, ensuring secure and durable attachment.
Implementation Method 1
a living hinge is coupled to the dashboard substrate by an articulated connection... the living hinge retains a longitudinal position of the hinge pin
Implementation Method 2
the living hinge comprises at least one resilient retainer portion coupled to the dashboard substrate; and the at least one resilient retainer portion comprises a snap-fitting element
Implementation Method 3
the at least one resilient retainer portion comprises a snap-fitting element
Data Source
AI summary
A glove box assembly includes a first tab adapted for coupling to a dashboard substrate. A glove box door includes a second tab. The glove box assembly includes a living hinge. A hinge pin is located within the tabs. The tabs are pivotably coupled to the hinge pin and the living hinge retains a longitudinal position of the hinge pin.