Locator Rail with Integrated Tabs for Appliance Door Alignment
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Solution Overview
Problem
Existing household appliances face challenges in precisely and accurately locating and aligning multiple doors relative to the cabinet, leading to increased assembly complexity and tolerance stack-ups, which affect customer satisfaction and overall quality perception.
Innovation Solution
A locator rail system with sets of locator tabs and slots is integrated into the appliance case body, ensuring precise alignment of doors and hinges through mutual engagement, simplifying assembly and reducing design float.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If multiple part mounting and aligning systems are used to locate and couple doors to the cabinet, then the door alignment precision is improved, but the assembly complexity increases and tolerance stack-ups occur
Solution Approach 1:
The patent combines multiple separate mounting and aligning parts into a single integrated locator rail assembly. The locator rail includes multiple locator tabs that perform both mounting and alignment functions simultaneously, eliminating the need for separate mounting brackets and aligning fixtures. This merging of functions reduces assembly complexity while maintaining door alignment precision.
Solution Approach 2:
The locator rail serves multiple functions: it provides mounting attachment points for doors, establishes precise alignment positions, and compensates for tolerance variations. Each locator tab on the rail performs multiple operations during assembly, making the system multi-functional and reducing the total number of components needed.
2Manufacturing precision
If multiple part mounting systems are used to couple doors to the cabinet, then the door location accuracy is improved, but the number of parts increases causing tolerance stack-ups
Solution Approach 1:
The patent consolidates multiple separate parts into a single locator rail assembly that includes all necessary locator tabs and mounting features. Instead of using multiple independent mounting brackets, aligning plates, and fasteners, the invention integrates all these functions into one rail component, reducing the total part count while maintaining location accuracy.
Solution Approach 2:
The locator rail is segmented into multiple locator tabs along its length, each providing independent positioning features. This segmentation allows the single rail to serve multiple attachment points without requiring multiple separate components, thereby reducing part quantity while maintaining precise door location accuracy at each attachment point.
Data Source
AI summary
An appliance includes a case body and a locator rail. The appliance may include a first lip and a second lip on the case body. The locator rail may include a first set of locator tabs and a second set of locator tabs. Each locator tab of the first set of locator tabs may be engaged with one corresponding slot in the first lip of the case body, and each locator tab of the second set of locator tabs may be engaged with one corresponding slot in the second lip of the case body. The appliance may also include a set of bracket locator tabs on the locator rail and a hinge bracket mounted to the locator rail. Each bracket locator tab of the set of bracket locator tabs may be engaged with one corresponding slot in the hinge bracket.