Drawer Adapter Claw Structure for Secure Scratch-Free Assembly
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Solution Overview
Problem
Existing adapter devices for connecting drawer bottoms to frames pose risks of scratching furniture and injury due to sharp edges, and often fail to provide a secure attachment.
Innovation Solution
The adapter device features convex rear contours on fastening claws and cup-shaped contours within the support leg, with claw webs oriented transversely to the extension direction, reducing the risk of injury and scratching by ensuring secure attachment and accommodating manufacturing tolerances.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If sharp-edged fastening claws are used to secure the drawer bottom, then the connection strength is improved, but the risk of scratching furniture parts and causing injury increases
Solution Approach 1:
The fastening claws are designed with a convex rear contour instead of sharp edges. This curved geometry maintains the mechanical interlocking function for secure attachment while eliminating the harmful sharp edges that cause scratching and injury during assembly and use.
2Reliability
If conventional adapter devices are used, then the drawer bottom can be attached to the frame, but the assembly process is complex and time-consuming
Solution Approach 1:
The adapter device integrates multiple functions into a single component: the support leg provides structural support, the punched-out area creates the fastening claws, and the contact bar ensures proper positioning. This consolidation simplifies the assembly process while maintaining secure attachment.
Solution Approach 2:
The fastening claws are pre-formed through the punched-out area design, ready for immediate insertion into the drawer bottom. The convex rear contour is pre-configured to prevent scratching during the insertion process, eliminating the need for additional protective measures or complex assembly steps.
3Reliability
If traditional claw designs are used, then fastening is achieved, but manufacturing precision requirements increase due to sharp edge formation
Solution Approach 1:
The convex rear contour is designed with a predetermined curved geometry that is inherently more tolerant to manufacturing variations. This curved shape does not require the precise sharp edge formation that traditional claw designs demand, reducing manufacturing precision requirements while maintaining fastening reliability.
Data Source
Figure 1~2
Figure 3~4
Figure 5a
AI summary
The invention relates to an adapter device having at least one supporting leg (5) for supporting a drawer bottom, wherein one or more claw webs (8) with one or more fastening claws (11) having one or more points (12, 13) are formed from the material of the supporting leg (5), which points can be connected to the drawer bottom. The claw webs (8) are oriented transversely to the extension direction of the drawer inside peripherally closed punched-out portions (6, 7) and said claw webs (8) are further bent in such a manner that, before assembly, the points (12, 13) lie underneath a supporting surface (A) for the drawer bottom on the side of the supporting leg (4) facing away from the supporting surface (5).