Counterbalanced Support Arm With Quick-Release Ergonomic Adjustment

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Solution Overview

Problem

Existing adjustable support arms lack the necessary range of height, depth, and angle adjustments to accommodate users of different sizes and working positions, such as transitioning between seated and standing positions at height-adjustable desks or in shared workspaces like hot-desking environments.

Innovation Solution

The design incorporates a dynamic arm with a counter-balanced, parallelogram structure and quick-release joints, along with an articulating joint that allows for panning, tilting, and rotation, enabling a wide range of vertical and horizontal adjustments, and an accessory bracket assembly for versatile mounting of devices.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If the support arm provides fixed height, depth, and angle adjustments, then the device complexity is reduced, but the adaptability to different users and working positions is insufficient

Engineering Contradiction:
Improveadjustability rangeVSAvoidstructure complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The support arm is divided into multiple independent segments (first arm, second arm, third arm) that can be adjusted individually. Each segment has its own adjustment mechanism, allowing independent control of height, depth, and angle to achieve comprehensive adaptability without requiring a single complex mechanism

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The support arm incorporates dynamic adjustment capabilities through telescopic sections with adjustable lengths and articulating joints with variable angles. The arms can be extended or retracted and angled at multiple positions, transforming a static structure into a dynamic system that adapts to different ergonomic requirements

Inventive Principle:
Principle #15Dynamics

2Ease of operation

If the support arm structure is simplified, then the ease of manufacture is improved, but the range of motion and positioning capability are reduced

Engineering Contradiction:
Improveergonomic flexibilityVSAvoidmanufacturing complexity
Core Design Contradiction:
Ease of operationVSEase of manufacture

Solution Approach 1:

The complex support arm is segmented into multiple standardized components (base, arms, joints, mounting bracket) that can be manufactured separately using conventional processes and then assembled. This segmentation allows each component to be optimized for ease of manufacture while the overall system achieves ergonomic flexibility

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The support arm components are designed with pre-configured adjustment mechanisms and standardized connection interfaces. The arms come with pre-set telescopic sections and articulating joints that require minimal assembly, allowing complex ergonomic functionality to be achieved through relatively simple manufacturing and assembly processes

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentEP3775663B1Adjustable support arm
Publication Date: 2024.07.24 HUMANSCALE CORP
  • EP3775663B1 patent drawingFigure 1
  • EP3775663B1 patent drawingFigure 2
  • EP3775663B1 patent drawingFigure 3

AI summary

An adjustable support arm capable of providing users with a wide range of height, depth, tilt, and swivel options. The adjustable support arm may comprise an arm assembly releasably mounted to a base assembly. In further embodiments, the adjustable support arm may also comprise an articulating joint connected to the arm assembly, and an accessory bracket assembly connected to the articulating joint. A quick-release joint comprising a spring-loaded pivot latch may be utilized to releasably connect the arm assembly to the base assembly. To dampen side-to-side movement of the arm assembly, the adjustable support arm may also comprise a friction cartridge assembly comprising a taper-lock bushing and one or more set screws. A ring-shaped, adjustable panning insert can be coupled to the arm assembly to restrict the range of side-to-side motion of the support arm. The adjustable arm can further comprise a quick-release accessory fastening mechanism for easy removal and attachment of a mounted object (e.g., an electronic display, keyboard, or other item) to the support arm.