Monitor Mount Joint Assembly With Switchable Rotation Limiting

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Solution Overview

Problem

Existing monitor mounts with rotation-limiting structures either compromise the appearance with external screws or require cumbersome disassembly for built-in parts, making it difficult to balance aesthetics and convenience.

Innovation Solution

A joint assembly for monitor mounts that includes a rotating assembly and a limiting component, allowing external force to switch between limiting and releasing positions, enabling 360° rotation without external screws or disassembly, by using a movable limiting component and an operation component with inclined surfaces to facilitate rotation control.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If external screws are used for rotation limiting, then the rotation range can be controlled, but the appearance and overall integrity of the mount are compromised

Engineering Contradiction:

Improverotation controlVSAvoidappearance integrity

Core Design Contradiction:

Ease of operationVSShape

Solution Approach 1:

The limiting component is nested inside the first joint, with the limiting protrusion extending into the limiting groove only when needed. The operation component is nested within the joint structure, allowing the limiting mechanism to be concealed when not in use, thus maintaining appearance integrity while providing rotation control functionality.

Inventive Principle:

Principle #7Nested doll (Nesting)

Solution Approach 2:

The limiting component is designed to be movable along the axis of the first joint, transitioning between a retracted state (maintaining appearance) and an extended state (providing rotation limiting). The elastic component enables dynamic adjustment between these states based on operational needs.

Inventive Principle:

Principle #15Dynamics

2Shape

If built-in parts are used for rotation limiting, then the appearance is maintained, but disassembly is required for operation which is cumbersome

Engineering Contradiction:

Improveappearance integrityVSAvoidoperation convenience

Core Design Contradiction:

ShapeVSEase of operation

Solution Approach 1:

The operation component is designed to be directly operable by the user without requiring disassembly of the joint. The limiting component automatically engages or disengages from the groove when the operation component is rotated, providing self-service functionality that eliminates cumbersome disassembly steps while maintaining built-in appearance.

Inventive Principle:

Principle #25Self-service

Solution Approach 2:

Inventive Principle:

Principle #15Dynamics

3Adaptability or versatility

If the fixed arm can rotate 360°, then adjustment flexibility is maximized, but the mount may hit the wall or partition

Engineering Contradiction:

Improverotation flexibilityVSAvoidcollision risk

Core Design Contradiction:

Adaptability or versatilityVSObject-affected harmful factors

Solution Approach 1:

The limiting protrusion and limiting groove are configured to prevent the fixed arm from rotating beyond a safe angle range before collision can occur. This preliminary restriction eliminates the harmful effect of wall or partition collision while still allowing sufficient rotation flexibility for most mounting scenarios.

Inventive Principle:

Principle #9Preliminary anti-action

Solution Approach 2:

The rotation angle range is changed from 360° to a predetermined safe range (e.g., 180° or less) by the limiting mechanism. This parameter modification reduces the collision risk while maintaining adequate adjustment flexibility for typical wall-mounted applications.

Inventive Principle:

Principle #35Parameter changes

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

Enhances the appearance of monitor mounts by avoiding external screws and disassembly, while providing convenient operation and precise rotation control within predefined ranges, preventing collisions with partitions or walls.

Implementation Method 1

an elastic component, one end of which is connected to the limiting component and the other end is connected to the first joint; the elastic component is used to provide the limiting component with a force facing away from the second joint

Methodology Applied

Scientific EffectElasticity: Elasticity

Data Source

PatentEP4607079A1Joint assembly for a monitor mount and the monitor mount

Publication Date: 2025.08.27 NINGBO TUOTUO RIVER DESIGN CO

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AI summary

A joint assembly suitable for a monitor mount including a first joint, a second joint rotationally connected to the first joint; a limiting assembly provided on the first joint, wherein the limiting assembly comprises a limiting component, which has a first position that limits the second joint to rotate within a preset angle range relative to the first joint and a second position that releases the second joint from the limit; wherein the rotating assembly is rotatably arranged on the outer periphery of the first joint and is interlinked with the limiting component. Under the action of an external force, the rotating assembly drives the limiting component to switch between the first position and the second position.