Massager Core With Eccentric Driven Multi-Directional Heads
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Solution Overview
Problem
Current massagers have complex structures and large volumes, limiting their ability to provide multidimensional massage, especially for the neck, due to massaging heads being restricted to a single plane.
Innovation Solution
A core massager design with a simple structure and small volume, featuring multi-directional massaging heads enabled by a rotating shaft, eccentric wheels, and a connecting rod, allowing for left-and-right and back-and-forth reciprocating motions with deflection amplitude, along with a position sensor to control the massage distance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If traditional motors and transmission devices are used to drive massaging heads, then the massager can operate, but the structure becomes complex and volume increases
Solution Approach 1:
The patent combines the driving source and transmission components into an integrated driving assembly. The driving source is arranged in the shell with a rotating shaft that directly connects to eccentric wheels, eliminating the need for separate transmission devices. This merging of components simplifies the overall structure while maintaining the massage function.
Solution Approach 2:
The rotating shaft serves multiple functions: it acts as the output shaft of the driving source, supports multiple eccentric wheels for different massaging heads, and provides the rotational motion that drives the entire massaging mechanism. This multi-functionality reduces the number of separate components needed.
2Adaptability or versatility
If massaging heads are arranged on the same plane, then the structure is simple, but multidimensional massage cannot be well realized and massage effect on the neck is poor
Solution Approach 1:
The patent transitions from a two-dimensional planar arrangement of massaging heads to a three-dimensional spatial configuration. The first and second eccentric wheels are positioned at different heights and angles, with massaging heads extending in different directions (left-right and back-forth). This dimensional change enables multidimensional massage coverage.
Solution Approach 2:
The patent introduces dynamic movement capabilities to the massaging heads through the connecting rod mechanism. The second massaging arm is pivotally connected and can swing within a certain angle range, adding dynamic adjustment capability that allows the massaging heads to adapt to different positions and angles during operation.
3Volume of moving object
If the massager structure is simplified and volume reduced, then portability improves, but the ability to provide multidimensional massage may be compromised
Solution Approach 1:
The patent employs a nested arrangement where the first and second eccentric wheels are positioned concentrically or in close proximity around the rotating shaft. The massaging arms and heads are arranged to utilize the same rotational space, maximizing the massage coverage within a compact volume. The driving assembly components are nested within the shell structure.
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
This design enhances the massage experience by providing multidimensional massage and reducing the risk of injury through controlled massage depth, improving user comfort and effectiveness.
Implementation Method 1
each of the transmission assemblies comprises a first eccentric wheel, a second eccentric wheel and a positioning wheel which are respectively sleeved on the rotating shaft
Data Source
AI summary
The application discloses a core of massager and a massager which comprise a shell, a driving assembly, two transmission assemblies and two massaging assemblies, the shell has a first opening and a second opening on both sides; the driving assembly comprises a driving source arranged in the shell and a rotating shaft connected with the driving source; the two transmission assemblies, connected to two ends of the rotating shaft, comprise a first eccentric wheel, a second eccentric wheel and a positioning wheel, all sleeved on the rotating shaft, the positioning wheel and the first eccentric wheel form an oblique space; the two massaging assemblies respectively extend out of the first and second openings, comprise a first massaging arm arranged in the oblique space and sleeved on the first eccentric wheel, a second massaging arm sleeved on the second eccentric wheel and pivotally connected to the shell via a connecting rod.