Integrated Latch Bumper for Vehicle Bin Stability
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Solution Overview
Problem
Conventional vehicle storage bin latching mechanisms with multiple bumpers increase construction cost and complexity, lead to inconsistent loading, and require complex installation processes, while also affecting the fit and finish of the bin.
Innovation Solution
A latch assembly with an integrated bumper that provides a constant load around the latch opening, reducing the need for multiple bumpers and simplifying the installation process, while allowing customization of the load distribution through various load edge configurations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If multiple bumpers are used with a center-mounted latch mechanism, then equal distribution of force to either side of the latch mechanism is achieved, preventing the closure assembly from rocking within the bin closure frame, but construction cost and complexity increase
Solution Approach 1:
The patent integrates the bumper directly into the latch housing as a unitary component, eliminating the need for separate bumper parts. The bumper is formed as an integral part of the latch housing through processes like insert molding, combining two previously separate components (latch housing and bumper) into one, thereby reducing part complexity while maintaining the force distribution function
Solution Approach 2:
The integrated bumper-latch housing combination serves multiple functions simultaneously: it provides the latching mechanism function and the bumper function (force distribution, rattle prevention, over-travel limitation) in a single component, reducing the overall complexity of the assembly
2Stability of the object's composition
If multiple bumpers are used to provide equal force distribution, then the closure assembly fit and finish is improved, but material cost and part complexity increase
Solution Approach 1:
By merging the bumper function into the latch housing, the patent eliminates the need for multiple separate bumper components. The integrated design achieves uniform force distribution through the single latch housing structure, reducing material usage and cost while maintaining the desired force distribution characteristics
3Reliability
If multiple bumpers are used, then the desired loading effects are achieved, but the number of bumper marring areas and installation complexity increase
Solution Approach 1:
The integration of the bumper into the latch housing reduces the number of separate parts that need to be installed. Instead of installing multiple bumpers at different locations, the single integrated component is installed as one unit, reducing installation complexity and the risk of improper installation while maintaining consistent loading through the integrated design
4Force
If conventional separate bumpers are used, then the latch mechanism function is provided, but the closure assembly requires robust construction to withstand loading at the bumper interface, increasing material usage
Solution Approach 1:
By combining the bumper and latch housing into a single integrated component, the patent eliminates the need for the closure assembly to withstand high loading at a separate bumper interface. The integrated design distributes forces more efficiently within the single component structure, reducing the need for robust (material-intensive) construction of the closure assembly
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
This solution reduces fabrication costs and complexity, improves fit and finish by eliminating excessive tolerance stacks, and enhances craftsmanship by integrating the bumper directly into the latch housing, ensuring consistent loading and easier assembly.
Implementation Method 1
The bumper is disposed on the base to provide a constant load around the latch opening
Data Source
AI summary
A latch assembly for a vehicle bin includes a latch housing having an integrated bumper. The latch housing defines a latch opening and a base adapted to carry the bumper. The bumper includes a load edge and is disposed on the base to provide a constant load around the latch opening. The load edge may define one of a planar load edge, a serrated load edge, and a scalloped load edge.