Furniture Pull-Out Release Connector With Load-Supporting Control Element
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Solution Overview
Problem
Existing devices for connecting furniture pullout parts to guide units in furniture carcasses are prone to material breakage under heavy loads, particularly during dynamic 'opening with overload' tests, leading to frequent replacements and increased costs.
Innovation Solution
The device incorporates supporting means that provide additional support to the control element in all three spatial directions, preventing relative movement and deformation, while maintaining the ability to release the furniture pullout part from the guide unit, using complementary supporting surfaces and a multifunctional journal pin that acts as both a supporting and pivot bearing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a plastic control element is used in the device, then the device can be manufactured cost-effectively and integrated into the furniture pullout part, but the control element is prone to material breakage under heavy loads during dynamic opening tests
Solution Approach 1:
The patent introduces supporting means (supporting surfaces or supporting projections) that are pre-positioned to cushion and distribute loads before they can concentrate on critical plastic components. These supporting means act as a preventive measure against peak loads during dynamic opening operations, allowing the use of cost-effective plastic materials while preventing breakage through load distribution.
2Strength
If the control element is made more robust to withstand heavy loads, then material breakage is prevented, but the device complexity and manufacturing costs increase
Solution Approach 1:
The supporting means act as an intermediary element between the control element and the device housing. Instead of making the control element itself more robust (which would increase complexity), the supporting means mediate the load transfer, distributing forces through the device housing structure. This approach protects the control element without requiring it to be more complex or robust.
3Duration of action of stationary object
If supporting means are added to prevent control element deformation, then service life is extended, but the device complexity increases
Solution Approach 1:
The supporting means are integrated into the existing device housing structure, merging the support function with the housing itself. Rather than adding separate, complex support mechanisms, the housing is designed to incorporate supporting surfaces or projections that provide the necessary support. This integration extends service life while minimizing increases in overall device complexity.
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
The solution enables the device to withstand high loads without material breakage, extending its service life and reducing the need for replacements, thereby lowering overall costs and ensuring reliable operation.
Implementation Method 1
a control element (17) which is integrally formed on a bearing section (16) of the device housing (12) via at least one solid body joint (18)
Data Source
AI summary
In a device for releasably connecting a furniture pullout part movably guided in a furniture carcass by a guide unit to the guide unit, the device including a device housing on which a control element is integrally formed and pivotably mounted via at least one solid body joint in such a way that the connection between the furniture pullout part and the guide unit can be released on actuation of the control element, at a distance from the solid body joint, supporting surfaces are provided for supporting the control element while preventing a relative movement between this and the device housing.