Oven Guide Rail Fastening With Integral Latching Features
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Solution Overview
Problem
Existing fastening solutions for guide rails in pull-out guides, such as those in baking ovens, require additional retaining elements that are costly and complex to manufacture and assemble, often involving welding, which complicates the process.
Innovation Solution
The integration of fastening means directly into the guide rail, allowing it to be securely fixed to a side grid with angled end sections, using slots and bendable webs for alignment and latching, eliminating the need for separate retaining elements and simplifying the manufacturing and assembly process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If additional retaining elements are used to fix the guide rail to the rod, then the fastening reliability is improved, but the device complexity and manufacturing cost increase
Solution Approach 1:
The fastening function is merged into the guide rail itself by forming fastening means integrally with the guide rail. The guide rail includes fastening means formed integrally therewith, eliminating the need for separate retaining elements. This integration maintains fastening reliability while reducing device complexity and manufacturing cost.
2Strength
If additional retaining elements are welded to the guide rail, then the fastening strength is improved, but the manufacturing time and assembly complexity increase
Solution Approach 1:
The fastening means is formed integrally with the guide rail as a single component, eliminating the need for separate retaining elements and welding operations. This integration maintains fastening strength while significantly reducing manufacturing time and assembly complexity.
Solution Approach 2:
The guide rail is designed to be self-fastening through its integral fastening means, which automatically engages with the rod without requiring additional fastening operations or separate components. The guide rail serves its own fastening function, eliminating the need for external retaining elements.
3Reliability
If slots are aligned at an angle to one another for secure holding, then the fastening reliability is improved, but the manufacturing precision requirements increase
Solution Approach 1:
The slots are aligned at an angle to one another (e.g., at right angles) to provide secure holding in multiple directions. This asymmetric arrangement prevents accidental dismounting by requiring force in multiple directions simultaneously, thereby improving fastening reliability. The angled alignment is built into the integral fastening means, so the precision requirement is managed during the guide rail manufacturing process rather than during assembly.
Data Source
AI summary
A fastening arrangement for fixing a guide rail of a pull-out guide to a side grid of an oven. The side grid includes a rod having end sections bent at an angle and each end section is fixed to a post of the side grid and the guide rail being fixed to the rod. The fastening arrangement includes fastening means for fixing the guide rail to the rod and the fastening means is formed integrally with the guide rail.