Tool-Free Rear Wall Mounting Device for Drawer Assembly Flexibility
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Solution Overview
Problem
Existing self-assembly drawer kits require matching components, limiting flexibility in combining drawer sidewall units with various rear walls, making it difficult to assemble without tools and increasing complexity.
Innovation Solution
A device with an engagement mechanism that connects to a rear wall holder without tools, allowing for pre-assembly and easy installation between the rear wall and drawer sidewall unit, featuring latching elements, spring elements, and holding elements for a secure, tool-free assembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If traditional self-assembly drawer kits with hooks and positioning pins are used, then the rear wall can be connected to the drawer sidewall unit, but the components must be precisely matched which limits flexibility and increases complexity
Solution Approach 1:
The device serves multiple functions: it acts as both a connection element and a positioning element between the rear wall and drawer sidewall unit. The engagement mechanism with latching elements provides both attachment and alignment functions in a single component, eliminating the need for separate hooks and positioning pins, thus increasing versatility while reducing component complexity.
Solution Approach 2:
The device is inserted into a recess in the rear wall and engages with the rear wall holder, creating a nested structure where the device fits within the recess space. This nesting approach allows the connection mechanism to be integrated within the existing structure rather than adding external components, reducing overall complexity.
2Ease of operation
If traditional self-assembly drawer kits are used, then the drawer components can be connected, but tool-free assembly becomes difficult and requires precise matching of components
Solution Approach 1:
The device enables self-service assembly through its engagement mechanism that automatically latches into position without requiring tools. The latching elements engage with the rear wall holder and the holding elements in the recess, creating a self-securing connection that the user simply needs to insert and push into place, greatly easing the assembly operation.
Solution Approach 2:
The device is pre-configured with latching elements and holding elements positioned to engage with specific features of the rear wall holder and recess. This preliminary arrangement of components ensures that when the device is inserted, the connection is automatically established without requiring the user to perform additional alignment or fastening actions.
3Reliability
If the engagement mechanism with latching elements is used, then a secure connection is achieved, but the device structure becomes more complex
Solution Approach 1:
The device merges multiple connection features into a single integrated component. The latching elements, holding elements, and engagement mechanism are all part of one device that is inserted into the recess, rather than using separate components. This merging provides secure connection through multiple engagement points while maintaining relatively simple overall structure.
Solution Approach 2:
The engagement mechanism is segmented into distinct functional elements: latching elements for securing to the rear wall holder, holding elements for engagement with the recess, and spring elements for providing force. This segmentation allows each element to be optimized for its specific function while working together as an integrated system, achieving reliability without excessive complexity.
4Stability of the object's composition
If spring elements are used to hold the engagement mechanism in latched position, then a secure and stable connection is achieved, but the device complexity increases
Solution Approach 1:
The spring elements introduce a dynamic component to the otherwise static connection structure. The springs provide continuous force to maintain the latched position, allowing the connection to adapt to minor variations in alignment or wear over time. This dynamic element enhances stability without requiring a complex adjustable mechanism.
Solution Approach 2:
The spring elements automatically maintain the latched position without requiring external intervention or additional components. Once the device is inserted and the latching elements engage, the spring force self-regulates to keep the connection secure, eliminating the need for separate fastening or locking mechanisms.
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
Enables simple, tool-free assembly of the rear wall on a movable furniture component, ensuring a secure and positionally fixed connection, reducing noise and rattling during movement, and allowing for cost-effective manufacturing.
Implementation Method 1
an engagement mechanism (1; 22) for engagement in a rear wall holder (47), wherein the engagement mechanism comprises a latching element (3; 24), a holding element (5; 25) and a spring element (7-9; 26-28)
Data Source
AI summary
A device for mounting a rear wall on a movable furniture component of a piece of furniture, in particular on a drawer, with the movable furniture component including a rear wall and a drawer sidewall unit. The device is characterized in that the device is for arrangement between a rear wall holder extending on the drawer sidewall unit in a plane of the rear wall and the rear wall, and the device has an engagement mechanism for engagement in the rear wall holder.