Offset Drive Movement Structure for Quiet Stable Swinging

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Solution Overview

Problem

Existing massage apparatuses with integrated movement structures suffer from complex designs, large volumes, noise, and jamming issues, which affect user experience and stability.

Innovation Solution

A movement structure comprising a rotating motor, rotating seat, and positioning shell, where the driving shaft deviates from the axis and slides obliquely to drive the swinging shaft reciprocally, reducing clearance and improving stability.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Device complexity

If a combination of drive coil and permanent magnet is used to realize swinging, then the structure is integrated, but the swinging frequency is low and the torque is small

Engineering Contradiction:

Improvestructure integrationVSAvoidswinging frequency

Core Design Contradiction:

Device complexityVSSpeed

Solution Approach 1:

The patent replaces the electromagnetic drive coil and permanent magnet system with a mechanical rotating motor system. The rotating motor drives a rotating seat with an offset driving shaft that converts rotational motion into reciprocating swinging motion through mechanical linkage, eliminating the limitations of electromagnetic torque and frequency.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent introduces an offset driving shaft that rotates in a plane perpendicular to the swinging axis, converting one-dimensional rotational motion into two-dimensional reciprocating swinging motion. This dimensional transformation enables higher swinging frequencies and greater torque output.

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

2Speed

If a rotating motor matched with sector gear is used to realize swinging, then the swinging motion is achieved, but the volume is large, structure is complex, and meshing noise is produced

Engineering Contradiction:

Improveswinging motionVSAvoidstructure complexity

Core Design Contradiction:

SpeedVSDevice complexity

Solution Approach 1:

The patent extracts and eliminates the sector gear component from the system, replacing it with a direct mechanical linkage between the rotating seat and swinging shaft. This removal of the gear mechanism eliminates meshing noise, reduces structural complexity, and maintains compact volume while achieving the required swinging motion.

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The patent employs an asymmetric offset driving shaft configuration where the driving shaft axis is deliberately offset from the rotation axis of the rotating motor. This asymmetric arrangement directly generates reciprocating swinging motion without requiring symmetric gear mechanisms, simplifying the overall structure and reducing noise.

Inventive Principle:

Principle #4Asymmetry

3Speed

If brushed motor with running clearance is used, then rotation is achieved, but noise and jamming occur

Engineering Contradiction:

ImproverotationVSAvoidjamming resistance

Core Design Contradiction:

SpeedVSReliability

Solution Approach 1:

The patent replaces the brushed motor with a rotating seat mechanism that uses offset axial rotation to drive the swinging motion. This substitution eliminates the brush-commutator interface that causes noise and jamming, improving reliability while maintaining rotational functionality.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

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 achieves a simpler structure, reduced volume, improved stability, and increased swinging frequency, enhancing user experience and facilitating assembly.

Implementation Method 1

a rotating motor, a rotating seat, and a positioning shell. The rotating motor is provided with a rotating shaft extending upwards

Methodology Applied

Scientific EffectElectromagnetic conversion: Electromagnetic Induction

Implementation Method 2

The driving shaft extends obliquely upwards towards a direction of the axis... enables the swinging shaft to swing reciprocally

Methodology Applied

Scientific EffectMechanical motion conversion: Mechanical Advantage

Data Source

PatentUS20250170494A1Movement structure and pull-to-suck-and-lick massage apparatus with movement structure

Publication Date: 2025.05.29 DONGGUAN GUIGONG ADULT SUPPLIES CO LTD

AI summary

Disclosed are a movement structure and a pull-to-suck-and-lick massage apparatus with the movement structure. The movement structure includes a rotating motor, a rotating seat, and a positioning shell. The rotating motor is provided with a rotating shaft extending upwards. The rotating seat is connected to the rotating shaft. The rotating seat is provided with a driving shaft that deviates from an axis. The driving shaft extends obliquely upwards towards a direction of the axis. The positioning shell is detachably mounted at a position of an upper end of the rotating motor. The positioning shell is provided with pivot seats. The pivot seats are pivotally provided with a swinging shaft. Reciprocating pulling and gentle licking and squeezing of the tongue are realized through an elastic rod body and an elastic simulated tongue, which effectively improves the user experience of the massage apparatus.