Display Support Base With Rack-Driven Counterbalance Stability

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Solution Overview

Problem

Display devices with movable support frames face instability due to changes in the center of gravity, leading to potential toppling during linear movement.

Innovation Solution

A support base design featuring a base casing, a support frame, a first rack, an auxiliary support member, and gears that work together to maintain stability by synchronously moving the auxiliary support member when the support frame moves linearly, ensuring the center of gravity remains stable.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If the support frame moves linearly to adjust viewing distance, then the display device's adaptability is improved, but the center of gravity becomes unstable causing the device to topple

Engineering Contradiction:
Improveviewing distance adjustmentVSAvoidcenter of gravity stability
Core Design Contradiction:
Adaptability or versatilityVSStability of the object's composition

Solution Approach 1:

The patent employs an auxiliary support member that acts as a counterweight mechanism. When the support frame moves linearly along the first direction, the auxiliary support member moves in a second direction (perpendicular to the first direction) to compensate for the shift in center of gravity. This counterbalancing movement prevents the display device from toppling while maintaining the ability to adjust viewing distance.

Inventive Principle:
Principle #8Anti-weight (Counterweight)

Solution Approach 2:

The patent introduces a rack and pinion mechanism as an intermediary between the support frame and the auxiliary support member. The first rack is connected to the support frame, and the second rack is connected to the auxiliary support member, with a pinion gear meshing with both racks. This intermediary mechanical transmission system converts the linear movement of the support frame into synchronized perpendicular movement of the auxiliary support member, resolving the contradiction between adaptability and stability.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Ease of operation

If the support frame moves linearly for adjustment, then the ease of operation is improved, but the stability deteriorates due to center of gravity changes

Engineering Contradiction:
Improvelinear movement adjustmentVSAvoidanti-toppling performance
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The auxiliary support member functions as a dynamic counterweight that automatically adjusts its position in response to support frame movement. As the support frame moves linearly for easy adjustment, the auxiliary support member moves perpendicularly to counterbalance the resulting center of gravity shift, ensuring reliability and preventing toppling throughout the adjustment range.

Inventive Principle:
Principle #8Anti-weight (Counterweight)

Solution Approach 2:

The patent implements a dynamic stabilization system where the auxiliary support member is not fixed but moves synchronously with the support frame through the rack and pinion mechanism. This dynamic adjustment allows the system to maintain stability throughout the entire range of motion, rather than being optimized for a single static position, thereby improving both ease of operation and reliability.

Inventive Principle:
Principle #15Dynamics

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 effectively prevents the display device from toppling by adjusting the auxiliary support member's position in response to the support frame's movement, maintaining stability and ensuring the device remains upright during linear adjustments.

Implementation Method 1

The at least one gear meshes with the first rack and the second rack. When the support frame moves linearly along a first direction, the first rack drives the auxiliary support member to move along a second direction through the at least one gear and the second rack

Methodology Applied
Scientific EffectGear mechanism: Gear

Data Source

PatentUS11287844B2Support base and display device
Publication Date: 2022.03.29 QISDA CORP
  • US11287844B2 patent drawing
  • US11287844B2 patent drawing
  • US11287844B2 patent drawing

AI summary

A support base includes a base casing, a support frame, a first rack, an auxiliary support member and at least one gear. The support frame is movably disposed on the base casing. The first rack is disposed in the base casing and connected to the support frame. The auxiliary support member is movably disposed in the base casing. The auxiliary support member has a second rack. The at least one gear meshes with the first rack and the second rack. When the support frame moves linearly along a first direction, the first rack drives the auxiliary support member to move along a second direction through the at least one gear and the second rack, wherein an angle included between the first direction and the second direction is essentially between 0 degrees and 90 degrees.