Interlocked Joinery with Displaceable Insert for High-Load Resistance
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Solution Overview
Problem
Existing joinery arrangements, particularly in furniture components, require improved locking performance to resist high load and impulse forces while maintaining the ability to disassemble without damaging the components.
Innovation Solution
A joinery arrangement featuring a first joinery component with cavities and a second joinery component with protrusions and an insert that can be displaced and compressed, utilizing a retaining member with projections to enhance friction and locking strength, allowing for high resistance to loads and impulse forces while enabling disassembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a simple locking mechanism is used, then the device complexity is low, but the locking strength is insufficient to resist high load and impulse forces
Solution Approach 1:
The locking mechanism is divided into multiple functional elements: cavities and protrusions for primary locking in the first direction, and a recess with an insert for secondary locking in the second direction. This segmentation allows each element to specialize in resisting specific load directions, achieving high overall locking strength without requiring a single complex mechanism
Solution Approach 2:
The insert is nested within the second joinery component and engages with the recess of the first joinery component. The retaining member with projections is integrated into the insert structure. This nested arrangement allows multiple locking functions to be compactly combined, providing enhanced locking strength while maintaining relatively simple device complexity
2Strength
If a strong locking mechanism is used, then the locking strength is high, but the ease of operation for disassembly is reduced
Solution Approach 1:
The insert is designed to be displaceable and compressible along its main direction, transforming a static locking structure into a dynamic one. The spring element provides automatic compression and expansion, allowing the locking mechanism to adapt to assembly and disassembly operations while maintaining strong locking during use
Solution Approach 2:
The spring element is pre-compressed during assembly, storing elastic energy that automatically pushes the insert into the locked position within the recess. This preliminary action eliminates the need for additional locking operations, maintaining ease of assembly while ensuring strong locking
3Strength
If the insert is fixed and rigid, then the locking strength is high, but the ability to disassemble without damage is reduced
Solution Approach 1:
The insert transforms from a fixed rigid structure to a dynamic compressible element. The spring element allows the insert to be compressed during disassembly, reducing locking force progressively, and to expand during assembly, automatically engaging the locked position. This dynamic behavior protects components from damage while maintaining strong locking
Solution Approach 2:
The physical state of the insert changes from rigid to compressible through the integration of the spring element. This parameter change allows the insert to adapt its mechanical properties during different operational phases: maintaining rigidity for locking strength during assembly, and allowing compression during disassembly to prevent damage
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
The solution provides enhanced locking strength against high loads and impulse forces while allowing for easy disassembly without damaging the components, suitable for furniture assemblies such as cabinet and shelf units.
Implementation Method 1
an insert (6) which is displaceable and/or compressible along its main direction (A)... The insert (6) may comprise a spring, such as a static load spring
Implementation Method 2
The retain element may be a friction element for increasing friction between the insert and the recess
Data Source
AI summary
The disclosure relates to a joinery arrangement including a first and a second joinery component configured to be locked to each other. The first joinery component includes at least one cavity and a recess and the second joinery component includes at least one protrusion and an insert. The insert is displaceable and/or compressible along its main direction. The cavities and the protrusions are configured to cooperate with each other for locking the first and second joinery components to each other in a first direction and the recess and the insert are configured to cooperate with each other for locking the first and second joinery components to each other in a second direction. The insert includes a retaining member including at least one projection. The retaining member is configured to cooperate with the recess and/or an insert groove in a locked state.