Connecting Pin with Multi-Part Form-Fitting and Spring-Secured Locking
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Solution Overview
Problem
Existing furniture connection systems lack versatility in connecting different furniture parts, such as drawer walls, drawer rails, and wall elements, with a single connecting pin that can provide both positive and non-positive locking mechanisms, especially when dealing with varying part designs.
Innovation Solution
A connecting pin with a connecting piece and a head part, featuring projections or depressions, allows for form-fitting and force-fitting connections with multiple furniture parts, secured by a spring element for enhanced resilience, enabling the connection of at least two different furniture parts, like a drawer wall, drawer rail, and wall element, to a front panel.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a single connecting pin is used to connect multiple different furniture parts, then the versatility and adaptability of the connection system is improved, but the device complexity increases due to the need for multiple connection types (projections, depressions, spring elements)
Solution Approach 1:
The connecting pin is designed as a universal component that can connect multiple different furniture parts (drawer front, drawer wall, drawer rail, wall element) through various connection types including projections, depressions, and spring elements, eliminating the need for multiple specialized connectors
Solution Approach 2:
The connecting pin is divided into distinct functional sections: a fastening section for securing to the drawer front, a connecting piece with projections/depressions for positive connection, a spring element for resilient connection, and a head part for non-positive connection, allowing each section to serve its specific purpose while remaining part of a single component
2Reliability
If form-fitting connections with projections or depressions are used to securely connect furniture parts, then the connection strength and reliability are improved, but the manufacturing precision requirements increase
Solution Approach 1:
The connecting pin features localized geometric features (projections and depressions) at specific positions along its length, each tailored to engage with corresponding features on specific furniture parts, providing form-fitting connections only where needed rather than requiring precision throughout the entire component
3Reliability
If a spring element is added to enhance the resilience of the form-fitting connection, then the connection reliability under load is improved, but the device complexity and manufacturing cost increase
Solution Approach 1:
The spring element introduces dynamic, resilient behavior to the connection, allowing the connecting pin to adapt to load variations and maintain reliable connection under different conditions, transforming a static rigid connection into a dynamic adaptive one
Solution Approach 2:
The spring element is integrated directly into the connecting pin structure, merging the resilient connection function with the existing connecting pin component rather than requiring a separate resilient element, thus minimizing additional 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 provides a versatile and secure connection between various furniture parts, increasing the capacity of drawers and ensuring the connecting pin remains locked even under load, enhancing the stability and usability of furniture assemblies.
Implementation Method 1
The form-fitting connection is also secured by the force of a spring element, as a result of which the resilience of the form-fitting connection is additionally increased
Data Source
Figure 1a~1b
Figure 2a~2b
Figure 3a~3b
AI summary
The invention relates to a connecting rod (9) for attaching a first furniture part (2) to a second furniture part (3), comprising: a fastening section (19) for fastening the connecting rod (9) to the first furniture part (2); a holding section (10) for connecting the connecting rod (9) to the second furniture part (3), the holding section (10) of the connecting rod (9) comprising a connecting piece (11), facing the fastening section (19), in the form of a projection (27a, 27b) or a recess (27c), for positively connecting the second furniture part (3) to the connecting rod (9), and a head part (13) distanced by a neck (12) in a longitudinal direction (L) of the connecting rod (9). In a state in which the connecting rod (9) is fastened to the first furniture part (2) by means of the fastening section (19), optionally at least two different second furniture parts (3) can be connected to the connecting rod (9), positively by means of the connecting piece (11) and/or non-positively by means of the head part (13).