Oven Rack Assemblies and Related Methods
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Solution Overview
Problem
Conventional oven rack assemblies are complex and costly to manufacture and assemble, requiring components that can withstand high temperatures and featuring intricate retention mechanisms, which complicates the assembly process.
Innovation Solution
An oven rack assembly with a slide system that includes paired slide devices with inner and outer members, coupled to rack and subframe brackets via quick-connect features, allowing for easier assembly and secure positioning within the oven cavity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional retention mechanisms with spring-biased flippers, cams, and rivets are used, then the oven rack can be securely retained in the oven cavity, but the assembly complexity and manufacturing cost increase significantly
Solution Approach 1:
The retention mechanism is divided into separate functional elements: the subframe with integrated retention arms and the oven cavity with corresponding retention features. This segmentation allows each component to be manufactured independently and assembled more easily while maintaining secure retention through the interaction of these simplified elements.
Solution Approach 2:
The retention mechanism is merged directly into the subframe structure itself, eliminating the need for separate spring-biased flippers, cams, and rivets. The subframe includes integrated retention arms that engage with the oven cavity, combining multiple functions into a single unified component that reduces assembly complexity.
2Reliability
If complex retention mechanisms with multiple components are used, then secure retention is achieved, but the manufacturing cost increases due to multiple components requiring assembly
Solution Approach 1:
Multiple retention functions are merged into the subframe structure itself, which is manufactured as a single integrated component. This eliminates the need to manufacture and assemble separate spring-biased flippers, cams, and rivets, significantly reducing manufacturing cost while maintaining retention security through the integrated retention arms.
Solution Approach 2:
The subframe serves multiple functions simultaneously: it provides structural support for the oven rack, includes integrated retention arms for securing the rack in the oven cavity, and incorporates the retention mechanism directly into its design. This multi-functionality reduces the total number of components needed and simplifies manufacturing.
3Reliability
If conventional retention mechanisms with multiple separate components are used, then retention function is achieved, but the number of assembly steps and time required increases
Solution Approach 1:
The retention mechanism is merged into the subframe as an integrated structure, eliminating the need to assemble separate spring-biased flippers, cams, and rivets. This reduces the number of assembly steps and allows the oven rack assembly to be manufactured and assembled more quickly while maintaining the retention function through the integrated retention arms.
Solution Approach 2:
The retention arms are pre-integrated into the subframe during subframe manufacturing, so that when the oven rack assembly is assembled, the retention function is already built-in and requires no additional assembly steps. This preliminary integration of the retention mechanism accelerates the overall assembly process.
Data Source
AI summary
An oven rack assembly includes an oven rack, a subframe, and a slide system coupled to the oven rack and the subframe. The slide system includes a pair of slide devices, a pair of rack brackets coupled to opposite sides of the oven rack, and a pair of subframe brackets coupled to opposite sides of the subframe. Each rack bracket has a plurality of openings to receive mounts of an inner member of the slide device therethrough to couple the slide device to the rack bracket. Each subframe bracket has a pair of upwardly opening recesses and slot openings extending from the recesses. The recesses allow mounts of an outer member of the slide device to be disposed within the slot openings to couple the slide device to the subframe bracket.