Floating Ring Locking Collar for Tool-Free Furniture Assembly

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Solution Overview

Problem

Conventional furniture components require tools and skilled technicians for assembly and disassembly, making them cumbersome and inefficient for on-site assembly and reconfiguration.

Innovation Solution

A connection system comprising a float assembly with a floating ring and a locking assembly, including a locking collar and base retainer, allows for easy adjustment and secure fixation of furniture components without tools, enabling height adjustment and tool-free assembly and disassembly.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If conventional connection systems are used for furniture assembly, then the connection strength and stability are sufficient, but the assembly and disassembly require tools and skilled technicians, increasing complexity and time consumption

Engineering Contradiction:
Improveease of assembly and disassemblyVSAvoidcomplexity of assembly process
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The connection system is divided into separate functional components: a float assembly with a floating ring for positioning, a base retainer for attachment to the support, and a locking collar with engagement members for securing. This segmentation allows each component to perform its specific function independently, enabling tool-free assembly while maintaining connection strength

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The floating ring provides self-aligning capability that automatically positions the work surface relative to the support during assembly. The engagement members on the locking collar automatically engage with the floating ring when the locking collar is rotated, creating a self-locking mechanism that requires no tools or specialized skills to operate

Inventive Principle:
Principle #25Self-service

2Productivity

If conventional connection systems are used, then the structural stability is maintained, but the adjustment of component positions requires additional tools and time

Engineering Contradiction:
Improveassembly speedVSAvoidtime for assembly and disassembly
Core Design Contradiction:
ProductivityVSLoss of time

Solution Approach 1:

The base retainer is pre-attached to the support structure, and the floating ring is pre-attached to the work surface. When assembly is required, these pre-prepared components are simply brought together and secured by rotating the locking collar, eliminating the need for tools or complex assembly procedures and significantly reducing assembly time

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The locking collar can be easily rotated between locked and unlocked positions, dynamically changing the state of the connection from fixed to adjustable and back. This dynamic mechanism allows for quick reconfiguration and disassembly without tools, enhancing productivity for furniture assembly and reconfiguration

Inventive Principle:
Principle #15Dynamics

3Stability of the object's composition

If a locking mechanism is added to enable fixed positioning, then the position stability is improved, but the mechanism becomes more complex and harder to operate

Engineering Contradiction:
Improveposition stabilityVSAvoidease of locking and unlocking
Core Design Contradiction:
Stability of the object's compositionVSEase of operation

Solution Approach 1:

The engagement members on the locking collar act as intermediaries that translate the simple rotational motion of the locking collar into a secure mechanical engagement with the floating ring. This intermediary mechanism provides stable locking through the engagement of protrusions with corresponding recesses, while the operation remains simple because it only requires rotating the collar without any complex adjustments

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The system replaces complex mechanical fastening systems (screws, bolts, washers) with a simplified rotational locking mechanism. The locking collar rotates to engage or disengage the engagement members from the floating ring, substituting a multi-step mechanical assembly process with a single rotational motion that provides stable positioning while remaining easy to operate

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Data Source

PatentEP2099332B1Connection system
Publication Date: 2018.06.06 HERMAN MILLER INC
  • EP2099332B1 patent drawingFigure 1~2
  • EP2099332B1 patent drawingFigure 3A~3D
  • EP2099332B1 patent drawingFigure 4~7

AI summary

A connection system includes a float assembly and a locking assembly. The float assembly includes a floating ring and a float retainer disposed against the floating ring. The float retainer is adapted to be secured to a first object. The locking assembly includes a locking collar and a base retainer. The base retainer is coupled to the locking collar and adapted to be attached to a second object. The base retainer includes an engagement member engaging the floating ring, with the float retainer disposed between the floating ring and the locking assembly. The locking assembly is moveable between a first configuration wherein the float retainer is moveable relative to the locking assembly and a second configuration wherein the float retainer is fixed relative to the locking assembly.