Neck Massager Worm Drive Transmission Design
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Solution Overview
Problem
Existing neck massagers have multiple massage units with independent driving units that occupy a large space and do not provide sufficient massage head speed and angle for user comfort.
Innovation Solution
A neck massager design featuring a main body with a driving worm that transmits drive to meshing gear groups on both sides, providing multiple inclined massage heads with adjustable speed through a reduction ratio of 150-300, mimicking the movement of human fingers for enhanced comfort.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple massage units with independent driving units are used, then massage coverage is improved, but device size and complexity increase
Solution Approach 1:
The patent combines multiple independent driving units into a single shared driving unit that controls multiple massage units through a common motor and transmission mechanism. This merging approach maintains the ability to provide massage across multiple areas while significantly reducing the overall device size and structural complexity.
Solution Approach 2:
The single driving unit is designed to serve multiple functions by controlling multiple massage units through a universal transmission system. The driving unit can adjust the motion parameters of different massage units to provide varied massage effects, making it a multi-functional component that replaces what would traditionally require multiple separate motors.
2Adaptability or versatility
If multiple massage units with independent driving units are used, then massage coverage is improved, but massage head speed and angle adjustment are insufficient
Solution Approach 1:
The patent implements dynamic adjustment capabilities where the massage heads can change their speed and angle in real-time through the transmission system. The single driving unit can independently control the motion parameters of each massage unit, allowing for dynamic variation in massage intensity and direction to match different user needs and neck contours.
Solution Approach 2:
The transmission system is designed to allow continuous adjustment of motion parameters such as speed and angle for each massage head. By changing the transmission ratios and mechanical linkages, the system can vary the output parameters of each massage unit without requiring separate control mechanisms, thereby improving ease of operation while maintaining broad massage coverage.
3Device complexity
If a single driving worm with gear groups is used, then drive and transmission simplicity is improved, but massage head speed and angle must be precisely controlled
Solution Approach 1:
The transmission system is segmented into multiple gear groups that can be independently configured for each massage unit. This segmentation allows the simple single-drive-worm structure to be divided into manageable stages, where each gear group can be designed with specific tooth counts and ratios to achieve precise speed and angle control for individual massage heads while maintaining overall system simplicity.
Solution Approach 2:
The gear groups are designed with variable transmission ratios that can be adjusted to control the speed and angle of each massage head. By changing the number of teeth and arrangement of gears in each group, the system achieves precise parameter control without requiring complex electronic controls or additional actuators, thus maintaining manufacturing precision while keeping the mechanical transmission simple.
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 design achieves simple drive and transmission with comfortable massage head movement, providing a constantly changing massage experience by varying the reduction ratio between massage units, ensuring optimal neck massage comfort.
Implementation Method 1
a driving worm, the driving gear group of the first massage unit and the driving gear group of the second massage unit are respectively set on the left and right sides of the driving worm, and are driven by the driving worm
Implementation Method 2
the total reduction ratio of the driving gear group of the first massage unit and the total reduction ratio of the driving gear group of the second massage unit are in the range of 150-300, respectively
Data Source
AI summary
A neck massager is provided. The neck massager includes a main body portion for wrapping around the neck, and a first massage unit and a second massage unit for massaging the neck. The first and second massage units each include a driving gear group driven by meshing transmission, and multiple inclined massage heads driven by the driving gear group. The main body portion is provided with a driving worm, and the driving gear group of the first massage unit and the driving gear group of the second massage unit are respectively set on the left and right sides of the driving worm, and are driven by the driving worm.