Pull-Out Guide Side Grate Connector With Low-Force Spring Latching
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Solution Overview
Problem
Existing connecting devices for fixing pull-out guides to side rails, such as in ovens, require high spring force due to integrally designed leaf springs, making assembly difficult and stressful on the spring element.
Innovation Solution
A separate flexible spring element is used, designed with a longer spring deflection and a bendable structure to reduce locking forces, and can be fixed to the holder using clamping or fasteners, allowing for a more compact and secure attachment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If an integrally designed leaf spring is used in the connecting device, then the structure is compact and simple, but high spring force is required due to small spring deflection, making assembly difficult and stressful on the spring element
Solution Approach 1:
The spring element is divided into two separate components: a holder and a separate spring element. This segmentation allows the spring element to be designed with optimized geometry for larger deflection, reducing the required spring force while maintaining structural simplicity through modular assembly.
2Volume of moving object
If the spring element is designed with small spring deflection, then the structure remains compact, but high spring force is necessary to securely lock the quick-release fastener
Solution Approach 1:
The spring element's geometric parameters are optimized by separating it from the holder, allowing independent design of the spring leg length and cross-section. This enables larger spring deflection with reduced force requirements while maintaining compact overall dimensions through careful parameter selection.
3Strength
If the spring element is made with high rigidity, then secure locking is achieved, but high material stress occurs on the spring element
Solution Approach 1:
By separating the spring element from the holder, the spring element can be designed with optimized rigidity characteristics. The spring leg can be made sufficiently rigid for secure locking while its geometry is optimized to distribute and reduce material stress during operation.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This design reduces material stress on the spring element, enabling easier assembly and secure attachment of the pull-out guide to the side rail with lower required forces, while maintaining stability and transferring horizontal forces effectively.
Implementation Method 1
The spring element (12) is a separate component and comprises a flexible spring leg (15) with which the holder (10) can be locked
Data Source
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AI summary
The invention relates to a connecting device for fixing a pull-out guide (5) to a side grate (1), in particular for baking ovens, comprising a holder (10), which has at least one hook (11) for engaging with a horizontal brace (3) of the side grate (1), and a spring element (12, 12", 12"', 12""), by means of which the holder (10) can be latched to the side grate (1), wherein the spring element (12, 12", 12"', 12"") is designed as a separate component and has a flexible spring leg (15) for latching the holder (10).