Nested Elastic Supporting Arm for Higher Display Load Range

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Solution Overview

Problem

Existing display supports with large mechanical springs have limited bearing capacity and a small bearing range, leading to a large size and restricted usability.

Innovation Solution

The supporting arm employs a force applying member with multiple nested elastic members, which provide a supporting force to maintain the second mounting seat at any rotation position of the first mounting seat, thereby increasing bearing capacity and range without increasing the size of the supporting arm.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Strength

If the size of the mechanical spring is increased to increase bearing capacity, then the bearing capacity is improved, but the size of the supporting arm increases

Engineering Contradiction:

Improvebearing capacityVSAvoidsize of supporting arm

Core Design Contradiction:

StrengthVSVolume of moving object

Solution Approach 1:

The patent applies nesting by placing multiple elastic members (springs) inside each other, with at least one elastic member positioned within the inner diameter of another elastic member. This nested configuration allows multiple springs to occupy the same spatial envelope, thereby increasing the total bearing capacity through combined force while preventing an increase in the overall size of the supporting arm structure.

Inventive Principle:

Principle #7Nested doll (Nesting)

2Strength

If the size of the mechanical spring is increased to increase bearing capacity, then the bearing capacity is improved, but the bearing range becomes limited

Engineering Contradiction:

Improvebearing capacityVSAvoidbearing range

Core Design Contradiction:

StrengthVSAdaptability or versatility

Solution Approach 1:

The patent segments the single spring function into multiple elastic members that can independently deform and provide supporting force. This segmentation allows the system to handle a wider variety of loading conditions and display positions, thereby expanding the bearing range while maintaining high bearing capacity through the combined action of all elastic members.

Inventive Principle:

Principle #1Segmentation

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 configuration enhances the bearing capacity and range of the supporting arm, utilizing internal space effectively and preventing size increases, while maintaining stability and usability.

Implementation Method 1

the force applying member includes at least two elastic members nested sequentially from inside to outside, and the at least two elastic members jointly provide a supporting force

Methodology Applied

Scientific EffectElasticity: Elasticity

Data Source

PatentUS20250075846A1Supporting Arm

Publication Date: 2025.03.06 NINGBO TUOTUO RIVER DESIGN CO

AI summary

A supporting arm is provided. The supporting arm includes a first mounting seat, a second mounting seat, a supporting member and a force applying member. Two opposite ends of the supporting member are configured to be rotatably connected to the first mounting seat and the second mounting seat, respectively. The force applying member is arranged between the first mounting seat and the second mounting seat. The force applying member includes at least two elastic members nested sequentially from inside to outside, and the at least two elastic members jointly provide a supporting force, such that the second mounting seat is kept at any rotation position of the first mounting seat.