Drawer Wall Element Assembly Using Spring-Loaded Locking Lever
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Solution Overview
Problem
The existing drawer assembly methods are costly due to the complex and expensive assembly process of furniture fittings on front panels, which require drilling, screwing, or using dowels for attachment.
Innovation Solution
A drawer arrangement where a wall element is securely attached to the drawer side wall using a locking device with a prestressed lever, eliminating the need for screws or dowels by supporting the furniture fitting on a contact surface of the wall element, which is held in place by the locking device, allowing the furniture fitting to encompass or be partially accommodated within the wall element.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If furniture fittings are attached to the front panel using screws or dowels, then the wall element is securely attached to the drawer side wall, but the assembly process becomes complex and costly
Solution Approach 1:
The patent extracts the attachment function from the front panel by making the furniture fitting separate from the wall element. The fitting is attached directly to the drawer side wall via the locking lever, eliminating the need to attach it to the front panel with screws or dowels. This reduces assembly complexity while maintaining secure attachment.
Solution Approach 2:
The locking lever acts as an intermediary component between the furniture fitting and the drawer side wall. It provides a simplified attachment mechanism that replaces the complex screw or dowel process, allowing the fitting to be securely attached through a straightforward insertion and locking action.
2Ease of operation
If furniture fittings are attached to the front panel, then the wall element can be connected to the drawer side wall, but the assembly effort and cost increase
Solution Approach 1:
By extracting the furniture fitting from the front panel attachment process, the patent enables direct attachment to the drawer side wall. This eliminates time-consuming steps like drilling holes and inserting screws or dowels, significantly reducing assembly effort and time.
Solution Approach 2:
The locking lever provides a self-servicing attachment mechanism where the furniture fitting attaches itself to the drawer side wall through simple insertion. The spring-loaded locking lever automatically engages with the fitting, eliminating the need for additional fastening operations and reducing assembly time.
3Device complexity
If the furniture fitting is supported on the contact surface of the wall element, then the assembly process is simplified, but the connection security must be maintained
Solution Approach 1:
The locking lever serves as an intermediary that maintains connection security between the furniture fitting and the drawer side wall. It transfers the support load from the contact surface to a secure locked position, ensuring reliable connection while keeping the attachment process simple.
Solution Approach 2:
The spring in the locking lever is pre-tensioned to provide preliminary locking force. When the furniture fitting is inserted, the pre-compressed spring automatically engages the locking lever with the fitting, ensuring secure connection without requiring complex assembly steps or additional fastening operations.
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 method reduces the assembly effort and cost by simplifying the attachment process while ensuring a secure connection between the wall element and the drawer side wall, allowing for easy replacement and compact construction.
Implementation Method 1
a locking lever pre-tensioned by at least one spring
Data Source
Figure 1
Figure 2
Figure 3a~3b
AI summary
Drawer arrangement comprising: - a drawer side panel (9) with a locking device (13), wherein the locking device (13) of the drawer side panel (9) has a locking lever (13a) biased by at least one spring (13b), - a wall element (5) to be connected transversely to the drawer side panel (9), wherein the wall element (5), in the connected state with the drawer side panel (9), has a mounting surface (24) facing the drawer side panel (9) and a contact surface (25) facing away from the mounting surface (24), - at least one separate furniture fitting (14) for connecting the wall element (5) to the drawer side panel (9), wherein the at least one furniture fitting (14) is releasably lockable with the locking lever (13a) of the locking device (13) of the drawer side panel (9).wherein the at least one furniture fitting (14) in the connected state of the wall element (5) with the drawer side wall (9) is supported at least partially on the contact surface (25) of the wall element (5), so that the wall element (5) is held on the drawer side wall (9) by the locking of the furniture fitting (14) with the locking device (13) of the drawer side wall (9).