Pivot Module With Sliding Linkage to Minimize Foldable Device Gaps

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Solution Overview

Problem

Modern electronic devices with rotatable bodies have structural gaps that hinder user interaction and viewing due to the limitations of the pivot mechanism.

Innovation Solution

The electronic device incorporates a pivot module with a transmission wheel, linkage assembly, sliding member, and rope mechanism that allows the first body to rotate and slide relative to the second body, enabling seamless transitions between operational states.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If a traditional pivot mechanism is used to connect two bodies, then the device can rotate between bodies, but a gap appears between the two bodies during rotation which is unfavorable for user interaction

Engineering Contradiction:
Improveuser convenienceVSAvoidgap between bodies
Core Design Contradiction:
Ease of operationVSShape

Solution Approach 1:

The patent applies dynamics by making the first body capable of both rotation and sliding movements. The first body rotates relative to the second body through a pivot, while simultaneously sliding along a sliding axis. This dynamic combination of rotational and translational movements allows the first body to dynamically adjust its position and orientation, thereby minimizing gaps and maintaining continuous contact or proximity with the second body during operation.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent introduces an additional dimension of movement by adding sliding motion along a sliding axis to the traditional rotational pivot mechanism. This transforms a single-degree-of-freedom rotational joint into a two-degree-of-freedom mechanism (rotation + translation), enabling the first body to move in multiple directions and better maintain contact with the second body, thus eliminating gaps in the vertical dimension.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

2Adaptability or versatility

If the first body only rotates relative to the second body, then the pivot mechanism is simple, but gaps remain between bodies reducing functionality continuity

Engineering Contradiction:
Improvefunctionality continuityVSAvoidpivot mechanism complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent applies dynamics by making the first body capable of both rotation and sliding movements. The first body rotates relative to the second body through a pivot, while simultaneously sliding along a sliding axis. This dynamic combination of rotational and translational movements allows the first body to dynamically adjust its position and orientation, thereby minimizing gaps and maintaining continuous contact or proximity with the second body during operation.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent implements multi-functionality by designing the first body to perform both rotational movement (through the pivot) and sliding movement (along the sliding axis). This dual-capability design allows a single component to achieve multiple functions: maintaining rotational flexibility while simultaneously ensuring continuous contact and functionality across different operational states, thereby improving adaptability without requiring separate mechanisms.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Data Source

PatentUS20250278123A1Electronic device
Publication Date: 2025.09.04 COMPAL ELECTRONICS INC
  • US20250278123A1 patent drawing
  • US20250278123A1 patent drawing
  • US20250278123A1 patent drawing

AI summary

An electronic device including a first body, a second body and at least one pivot module is provided. The pivot module includes a first transmission wheel, a linkage assembly, a first sliding member, a first driven member and a first rope. The linkage assembly is connected to the first body and the second body. The first sliding member is connected to the first body and linked to the first transmission wheel. The first driven member is connected to the first transmission wheel and the linkage assembly. The first rope is connected to the first sliding member and the first transmission wheel. The rotation of the first body drives the first driven member and the linkage assembly to move, thereby driving the first transmission wheel to rotate, so as to drive the first sliding member and at least part of the first body to slide relative to the linkage assembly.