Rotating Massage Head Assembly for Wider Kneading Coverage

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Solution Overview

Problem

Existing massage devices are limited in their ability to stimulate a large area, making it difficult to achieve the desired massage effect.

Innovation Solution

A massage device with a driving assembly that includes a driving wheel and driven wheel, allowing a massage member to rotate and create a kneading effect on a larger area, enhancing stimulation and massage efficacy.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Area of moving object

If a motor drives the massage head to frequently beat, then the massage device can stimulate muscles, but the stimulation area is limited to a small area

Engineering Contradiction:
Improvestimulation areaVSAvoidmassage effect
Core Design Contradiction:
Area of moving objectVSEase of operation

Solution Approach 1:

The patent applies the dynamics principle by transitioning from a static beating motion to a dynamic rotating motion. The massage head rotates around its axis while simultaneously moving along the longitudinal axis, creating a multi-dimensional dynamic massage action that covers a larger area and provides more effective muscle stimulation.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent implements dimensionality change by adding rotational movement around the longitudinal axis to the existing linear reciprocating motion. This creates a two-dimensional massage coverage area, transforming the one-dimensional beating motion into a multi-directional massage action that stimulates a broader area of muscles.

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

2Reliability

If a motor drives the massage head to frequently beat, then the massage device can stimulate muscles, but it is difficult to achieve the desired massage effect

Engineering Contradiction:
Improvemassage effectVSAvoidstimulation area
Core Design Contradiction:
ReliabilityVSArea of moving object

Solution Approach 1:

The patent applies the dynamics principle by transitioning from a static beating motion to a dynamic rotating motion. The massage head rotates around its axis while simultaneously moving along the longitudinal axis, creating a multi-dimensional dynamic massage action that covers a larger area and provides more effective muscle stimulation.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent implements dimensionality change by adding rotational movement around the longitudinal axis to the existing linear reciprocating motion. This creates a two-dimensional massage coverage area, transforming the one-dimensional beating motion into a multi-directional massage action that stimulates a broader area of muscles.

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

Data Source

PatentEP4649935A1Massage device
Publication Date: 2025.11.19 DONGGUAN QUNAN TECH CO LTD
  • EP4649935A1 patent drawingFigure 1
  • EP4649935A1 patent drawingFigure 2
  • EP4649935A1 patent drawingFigure 3

AI summary

A massage device includes a housing and at least one massage assembly provided on the housing. The massage assembly includes a driving assembly disposed in the housing and a massage member engaged with the driving wheel and the at least one driven wheel. The driving assembly includes a driving source, a driving wheel connected to the driving source and at least one driven wheel for cooperating with the driving wheel. The driving source is configured to drive the massage member to rotate through the driving wheel.