Drawer Wall Fastening with Parallel Latching for Narrow Panels
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Solution Overview
Problem
Existing fastening devices for connecting furniture wall parts, such as a rear wall with a side wall of a drawer, are limited in their ability to accommodate narrow wall parts due to the perpendicular arrangement of latching lugs, which restricts the length of the locking lug based on the width of the wall part, making it difficult to achieve a compact and stable connection.
Innovation Solution
The fastening device features latching lugs with a spring axis transverse to the wall, allowing the locking receptacle to be aligned parallel to the spring axis, enabling easy assembly and accommodating narrow wall parts, with additional stability provided by a second detent and a web between lugs, and a design that allows tool-free detachment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the latching lug is arranged perpendicular to the wall, then the connection is stable, but the length of the locking lug is restricted by the width of the wall part
Solution Approach 1:
The patent changes the orientation of the latching lug from perpendicular to parallel with the wall surface, effectively utilizing a different spatial dimension. This dimensional change allows the locking lug to extend along the wall rather than across it, enabling the connection of narrow wall parts without being constrained by wall width.
2Ease of operation
If the locking receptacle is moved in a single joining direction, then the assembly is simple, but the latching mechanism must accommodate narrow wall parts
Solution Approach 1:
By reorienting the latching mechanism so that the locking lug runs parallel to the wall, the invention enables narrow wall parts to be accommodated while maintaining simple single-direction assembly. The dimensional change allows the latching action to occur along the length of the wall rather than across its width.
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 configuration allows for a compact, stable, and easy-to-assemble fastening solution that can connect narrow wall parts without length restrictions, with tool-free detachment for cost-effective and efficient assembly and disassembly.
Implementation Method 1
at least one about an imaginary axis A (see Figure 2b) has resilient locking lugs 3 or 3'
Data Source
Figure 1
Figure 2a~2b
Figure 3a~3b
AI summary
The invention relates to a fastening device (2) for connecting two wall parts (103, 104) of a furniture part (101), in particular a rear wall (111) to a side wall (112) of a drawer (102), wherein the fastening device (2) has at least one locking projection (3) resilient about an imaginary spring axis (A) on one wall part (104), which locking projection can be locked - preferably detachably - into a locking receptacle (30) fastened to or formed on the other wall part (103), wherein the imaginary spring axis (A) of the locking projection (3) is at an angle - preferably substantially at a right angle - from a wall (140) of the wall part (104), wherein the locking receptacle (30) is formed on the other wall part (103) as an opening (31), wherein an imaginary normal (N) on the opening (31) is substantially parallel to the imaginary spring axis (A) of the resilient locking projection (3).