Pivot Shaft Transmission Device for Thin Electronic Apparatuses

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Solution Overview

Problem

Conventional pivot shaft transmission devices for electronic apparatuses are complex to assemble, affect the visual design, and allow dust accumulation due to their structural design, making them difficult to use and maintain.

Innovation Solution

A redesigned pivot shaft transmission device featuring a dual-shaft mechanism with a driver including an elastic body and a turning unit, where the driver is transversely movable, and the turning unit is swung to lift or lower a substrate body, incorporating a guide rail and elastic body to prevent damage from external forces, simplifying assembly and maintaining a clean, aesthetically pleasing design.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a conventional transmission device with notch and multiple connection components is used, then the frame can be lifted or lowered, but the appearance and visual design of the electronic apparatus are affected and dust accumulates

Engineering Contradiction:
Improveframe lifting functionVSAvoidappearance design
Core Design Contradiction:
ReliabilityVSShape

Solution Approach 1:

The patent merges the transmission support, connection section, and restriction functions into an integrated rotary shaft assembly. The rotary shaft includes an eccentric section that directly drives the transmission support, eliminating the need for separate notches in the case and multiple discrete connection components. This integration maintains the frame lifting function while preserving the complete enclosure appearance.

Inventive Principle:
Principle #5Merging (Combining)

2Reliability

If a conventional transmission device with notch and multiple connection components is used, then the frame can be lifted or lowered, but dust or the like is apt to accumulate on the components inside the case

Engineering Contradiction:
Improveframe lifting functionVSAvoiddust accumulation
Core Design Contradiction:
ReliabilityVSObject-affected harmful factors

Solution Approach 1:

By integrating the transmission mechanism components within the rotary shaft assembly itself rather than having separate movable parts inside the case, the patent eliminates gaps and openings where dust could accumulate. The eccentric section and transmission support form a compact integrated unit that maintains the case's sealed appearance while performing the lifting function.

Inventive Principle:
Principle #5Merging (Combining)

3Reliability

If the connection section is provided with claw section and restriction plate, then the transmission support can be connected, but the cooperative structures are relatively complicated and difficult to assemble

Engineering Contradiction:
Improveconnection stabilityVSAvoidcooperative structures
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent combines the connection section and restriction functions into the rotary shaft assembly. The transmission support is directly connected to the eccentric section of the rotary shaft, and the restriction function is integrated into the shaft's structure rather than requiring separate L-shaped restriction plates. This reduces the number of discrete components and simplifies the assembly process.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The rotary shaft serves multiple functions: it provides the eccentric driving motion, connects the transmission support, and incorporates the restriction mechanism. This multi-functionality eliminates the need for separate specialized components for each function, reducing overall structural complexity while maintaining connection stability.

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

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 enhances the assembly process, maintains a clean and visually appealing design, and provides a secure system that prevents damage from external forces, while allowing for lightweight and thin electronic apparatus designs.

Implementation Method 1

a driver (transversely) reciprocally movable and a turning unit having a first end connected with the driver and a second end assembled with a carrier body. The driver includes an arm section provided with an elastic body and a hand section connected with the arm section. When the driver is transversely moved, the turning unit is swung

Methodology Applied
Scientific EffectElastic force: Elasticity

Data Source

PatentUS9462713B2Transmission device applied to pivot shaft mechanism
Publication Date: 2016.10.04 FIRST DOME
  • US9462713B2 patent drawing
  • US9462713B2 patent drawing
  • US9462713B2 patent drawing

AI summary

A transmission device applied to a pivot shaft mechanism provides a security system and is easy to assemble. The transmission device includes at least one rotary shaft, a drive section movable with the rotation of the rotary shaft, a driver (transversely) reciprocally movable and a turning unit having a first end connected with the driver and a second end assembled with a carrier body. The driver includes an arm section provided with an elastic body and a hand section connected with the arm section. When the driver is transversely moved, the turning unit is swung, whereby the second end of the turning unit drives the carrier body for lifting or lowering a substrate body or a frame in accordance with the operation mode of an electronic apparatus.