Hinge for Separation Screen Panels

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Solution Overview

Problem

Conventional separation screen hinges are aesthetically unappealing and structurally unstable, leading to premature panel separation and frequent reassembly issues, which compromises the appearance and durability of separation screens.

Innovation Solution

A hinge design featuring a bent member with lateral arms and coupling means, including sleeves and rotational connection mechanisms, that provides rotational stability and axial locking, ensuring panels remain securely connected while allowing for flexible positioning and easy assembly.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Shape

If conventional hinges (piano hinges, rings, or cords) are used to join panels, then the separation screen can be assembled, but the aesthetic appearance is impaired due to visible joints and protruding parts

Engineering Contradiction:
Improveaesthetic appearanceVSAvoidvisibility of joint components
Core Design Contradiction:
ShapeVSDevice complexity

Solution Approach 1:

The hinge components are nested within the tubular frame structure. The lateral arms are inserted into the tubular frames of adjacent panels, and the coupling means are positioned within the frame members, concealing all joint components inside the tubular structure. This nesting approach eliminates visible external joints while maintaining the articulation function.

Inventive Principle:
Principle #7Nested doll (Nesting)

Solution Approach 2:

The tubular frame acts as an intermediary element that mediates between the hinge components and the external environment. By routing the hinge lateral arms and coupling means through and within the tubular frame structure, the design uses the frame as a concealing intermediary that hides the mechanical joint components from view.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Ease of manufacture

If simple ring or cord hinges are used to join panels, then assembly is simple, but structural stability deteriorates causing untimely panel separation

Engineering Contradiction:
Improvesimplicity of hinge constructionVSAvoidstructural stability
Core Design Contradiction:
Ease of manufactureVSReliability

Solution Approach 1:

The hinge is segmented into distinct functional components: lateral arms for articulation, coupling means for connection, and rotational connection mechanisms for stability. This segmentation allows each component to be optimized for its specific function while maintaining overall simplicity of construction and assembly.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The rotational connection mechanisms incorporate spherical or curved surfaces that provide smooth rotational movement while maintaining stable engagement. The curved geometries of the rotational connections prevent panel separation by providing continuous contact surfaces that guide and constrain motion.

Inventive Principle:
Principle #14Spheroidality (Curvature)

3Adaptability or versatility

If conventional hinges are used, then panels can be articulated, but frequent reassembly is required due to panel separation during handling

Engineering Contradiction:
Improvepanel articulation capabilityVSAvoidtime for reassembly operations
Core Design Contradiction:
Adaptability or versatilityVSLoss of time

Solution Approach 1:

The hinge components are pre-configured with engagement features that automatically secure panels in the correct position during assembly. The coupling means and rotational connection mechanisms are designed to engage in a single operation, preventing subsequent separation and eliminating the need for frequent reassembly.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The hinge design incorporates self-locking or self-retaining features that automatically maintain panel connection without requiring external fastening operations. The rotational connection mechanisms and coupling means work together to self-secure the panels, preventing separation during handling and transport.

Inventive Principle:
Principle #25Self-service

4Device complexity

If simple joining mechanisms are used, then device complexity is low, but the hinge lacks rotational stability allowing untimely separation

Engineering Contradiction:
Improvesimplicity of joining mechanismVSAvoidrotational stability
Core Design Contradiction:
Device complexityVSStability of the object's composition

Solution Approach 1:

The rotational connection mechanisms incorporate spherical or curved surfaces that provide smooth rotational movement while maintaining stable engagement. The curved geometries create continuous contact surfaces that guide rotation and prevent deviation, providing inherent rotational stability without complex locking mechanisms.

Inventive Principle:
Principle #14Spheroidality (Curvature)

Solution Approach 2:

The hinge design utilizes changes in geometric parameters of the rotational connection surfaces to provide stability. By carefully designing the curvature radii, contact surface areas, and engagement depths of the rotational mechanisms, the system achieves stable rotation with relatively simple components.

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentEP3071760B1Hinge for separation screen and separation screen mit einem solchen scharnier
Publication Date: 2020.03.04 STEELCASE INC
  • EP3071760B1 patent drawingFigure 1A
  • EP3071760B1 patent drawingFigure 1B
  • EP3071760B1 patent drawingFigure 2~3

AI summary

The present invention relates to a hinge (10, 11) for a separation screen (4) consisting of at least two panels (43, 44) that are hingedly connected about an axis of rotation X, each comprising a tubular frame (40, 40ʼ) and forming an angle α with respect to one another in an operating position of said separation screen (4). According to the invention, said hinge (10, 11) comprises an elbow member (2) having two side arms (21, 22) forming said angle α therebetween, as well as coupling means (3, 3ʼ) between each one of said side arms (21, 22) and a free end (41, 41ʼ, 42, 42ʼ) of the tubular frame (40, 40ʼ) of each one of said panels (43, 44). A first side arm (21) and said coupling means also comprise means arranged such as to enable a rotatable link, about said axis of rotation (X), between said coupling means (3, 3ʼ) and said first side arm (21).