Guide Rail Clamp Fastening for Space-Saving Grid Mounting
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Solution Overview
Problem
Existing quick fastening devices for guide rails in household appliances often result in a protruding structure, occupying valuable interior space and requiring multiple fastening points, which complicates assembly and reduces usability.
Innovation Solution
A compact quick fastening device featuring clamps with U-shaped holders and plate-shaped stops that secure the guide rail to a grid-like side part, allowing for secure attachment without protruding into the appliance's interior, and enabling easy assembly by integrating the clamps with the guide rail or a connected strip.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If clip-type retaining sections encompass the rod region in addition to bent end sections, then assembly is simple, but the structure becomes large towards the inside occupying valuable interior space
Solution Approach 1:
The retaining section is divided into two distinct functional parts: a first retaining portion that encompasses only the bent end section for simple assembly, and a second retaining portion that engages with a fastening point on the rod for secure fixation. This segmentation allows each part to perform its specific function efficiently without the volume penalty of a single large encompassing structure.
Solution Approach 2:
Instead of having the retaining section extend in the longitudinal direction of the rod (which would increase interior space occupation), the second retaining portion engages with a fastening point that transfers forces in a different direction (transversely to the rod). This dimensional change allows secure fastening without protruding into the interior space.
2Reliability
If fastening points on the rod are used, then secure fastening is achieved, but the structure becomes more complex and requires multiple fastening points
Solution Approach 1:
The retaining section is segmented into two functional portions: the first retaining portion for encompassing the bent end section and the second retaining portion for engaging the fastening point. This segmentation allows the structure to achieve secure fastening through coordinated action of two simple portions rather than requiring multiple complex fastening points.
3Volume of moving object
If the guide rail is positioned closer to the post, then interior space is enlarged, but fastening stability may be compromised
Solution Approach 1:
The second retaining portion engages with a fastening point on the rod and is configured to transfer forces acting on the guide rail in a direction transverse to the rod's longitudinal direction. This dimensional change in force transmission allows the guide rail to be positioned closer to the post (enlarging interior space) while maintaining fastening stability through the transverse force transfer mechanism.
Data Source
AI summary
A quick fastening device for fastening a guide rail to a horizontally extending rod having a bent end section on each end of the rod. The bent end sections each are fixed to a post of a grid. Each bent end section is encompassed by a clamp connected to the guide rail. The quick fastening device includes a stop abutting against the post on a side facing the guide rail. The stop is formed on the clamp.