Right-Angle Drawer Wall Clip Joint for Tool-Free Assembly
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Solution Overview
Problem
Existing connecting apparatuses for drawer wall parts at a right angle are complex and require tools for assembly and disassembly, making them difficult to implement manually and inefficient.
Innovation Solution
A connecting apparatus featuring a receiving portion with a push-in pocket and a U-shaped clip with parallel limbs that securely connects two drawer wall parts at a right angle, allowing for tool-free assembly and disassembly, with optional introduction funnels for easy clip insertion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If existing connecting apparatuses are used to connect drawer wall parts at a right angle, then a secure connection is achieved, but the assembly and disassembly require tools and become complex
Solution Approach 1:
The connecting apparatus is divided into separate functional components: a receiving portion with receiving opening for the first drawer wall part, and a clip with limbs for securing to the second drawer wall part. This segmentation allows each component to be simple and easy to manufacture, while collectively providing secure tool-free assembly through snap-fit and friction connections
Solution Approach 2:
The connecting apparatus enables self-service assembly where the user can manually insert the first drawer wall part into the receiving opening and attach the clip to the second drawer wall part without requiring external tools. The friction connection and snap-fit mechanisms provide self-locking that maintains the connection securely during normal use
2Reliability
If complex components are used in the connecting apparatus, then connection security is improved, but manual assembly without tools becomes difficult
Solution Approach 1:
The clip is designed with flexible limbs that can elastically deform during assembly to snap into place, providing a dynamic assembly process that is simple and tool-free. Once assembled, the elastic deformation creates continuous contact force that maintains a reliable, secure connection without requiring complex fastening mechanisms
Solution Approach 2:
The receiving portion utilizes friction connection where the friction coefficient and normal force parameters are optimized to provide secure holding of the first drawer wall part. The clip limbs are designed with specific elasticity parameters that allow easy insertion followed by secure locking, transforming the connection from a simple insertion to a reliable fixed connection
3Ease of manufacture
If simple plastic components are used for the receiving portion and clip, then manufacturing cost and simplicity are improved, but connection strength may be reduced
Solution Approach 1:
The connecting apparatus combines plastic components (receiving portion and clip) with the drawer wall parts themselves, creating a composite connection system. The plastic materials are selected for their mechanical properties including friction coefficient and elasticity, which when combined with the rigid drawer wall parts, achieve sufficient connection strength for the application
Solution Approach 2:
The plastic components are designed with optimized geometric parameters including wall thickness, limb dimensions, and receiving opening size that maximize the friction connection and snap-fit strength. The material parameters such as elastic modulus and yield strength are selected to ensure the plastic components can withstand the connection forces while remaining manufacturable
Data Source
AI summary
A connecting apparatus for connecting two drawer wall parts which are intended to be arranged at a right angle includes at least one receiving part which has a receiving opening for receiving an end section of a first drawer wall part and has at least one insertion opening, a bracket which has at least two limbs which run substantially parallel, wherein the bracket can be pushed onto a web, which is arranged or formed on a second drawer wall part, in order to connect the first drawer wall part and the second drawer wall part, and wherein the at least two limbs of the bracket surround the web of the second drawer wall part, wherein a first limb of the bracket can be inserted into the insertion opening in the receiving part and connects the receiving part to the second drawer wall part in a positionally secure manner.