Rack mounting features for a dishwasher appliance
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Solution Overview
Problem
The installation of mounting brackets for dishwasher racks is complicated, often requiring multiple parts and increasing the potential for misalignment or improper mounting, especially in the limited space of dishwasher tubs with radiused corners.
Innovation Solution
A rack mounting assembly with a two-piece design, consisting of a mounting body and a latching arm, which includes complementary features that securely engage with the tub, allowing for easy and reliable installation with minimal parts, using apertures and locking mechanisms to ensure proper alignment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional mounting brackets with multiple parts are used, then the mounting can be secured, but the installation process becomes complicated and time-consuming
Solution Approach 1:
The mounting bracket integrates multiple functions into a single component: the bracket body, mounting ears, and fastening features are combined into one piece. The first and second mounting ears are integrally formed with the bracket body, eliminating the need for separate mounting components while maintaining secure attachment capability.
Solution Approach 2:
The single mounting bracket performs multiple functions simultaneously: it provides structural support for the rack assembly, offers mounting surfaces through integrated ears, enables secure fastening via built-in fastening features, and facilitates proper positioning through geometric constraints. This multi-functional design replaces what previously required multiple separate parts.
2Reliability
If multiple mounting parts are used, then the mounting can be secured, but the installation time increases
Solution Approach 1:
While the mounting bracket itself is integrated, the mounting system is segmented into the bracket component and the rack assembly, allowing for modular installation. The bracket can be pre-installed on the support structure, then the rack assembly is attached in one operation, reducing overall installation time while maintaining security.
Solution Approach 2:
The mounting bracket is designed to be pre-installed on the support structure in a preliminary action, with its mounting ears and fastening features already in position. This preliminary placement simplifies the subsequent attachment of the rack assembly, as the mounting interface is already prepared, reducing total installation time.
3Reliability
If conventional mounting methods are used, then the mounting can be secured, but misalignment and improper mounting increase
Solution Approach 1:
The mounting bracket features asymmetric geometry with the first and second mounting ears positioned at different locations and orientations relative to the bracket body. This asymmetric design provides built-in alignment cues that guide proper installation orientation, preventing misalignment and improper mounting while maintaining secure attachment.
Solution Approach 2:
The mounting bracket incorporates self-aligning features through its geometric design, where the mounting ears and fastening features automatically guide the rack assembly into the correct position during installation. This self-service alignment mechanism reduces the skill level required for proper installation and minimizes misalignment errors.
Data Source
AI summary
A rack mounting assembly for supporting a third rack assembly within a tub of a dishwasher appliance is provided. The tub defines a wash chamber and a plurality of apertures spaced apart along a transverse direction. The rack mounting assembly includes a mounting body positioned inside the wash chamber and a latching arm positioned outside the wash chamber. The mounting body and/or latching arm include complementary features that pass through the plurality of apertures defined in the tub for engaging each other and securing the mounting body to the tub.