Retractable Massage Head Synchronous Drive Mechanism

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Solution Overview

Problem

Existing neck massagers with retractable massage heads cannot fully retract due to protruding guide pillars, limiting their versatility and user experience.

Innovation Solution

A massager design featuring a retractable massage head with a driving assembly, jacking support, jacking part, and reset spring, allowing the massage head to extend and retract synchronously, enabling complete retraction and improving usability.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If the massage head is made retractable to improve versatility, then the massager can be used as a neck pillow, but the guide pillars cannot be retracted and protrude outside, affecting the usage experience

Engineering Contradiction:
ImproveversatilityVSAvoidusage experience
Core Design Contradiction:
Adaptability or versatilityVSEase of operation

Solution Approach 1:

The guide pillar is divided into two parts: a fixed portion connected to the housing and a movable portion connected to the massage head. This segmentation allows the movable portion to retract with the massage head while the fixed portion remains stationary, resolving the contradiction between versatility and usage experience.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The movable guide pillar portion is nested within the housing structure, allowing it to be concealed when the massage head is retracted. This nesting approach enables the massage head to fully retract without protruding guide pillars, improving usage experience while maintaining versatility.

Inventive Principle:
Principle #7Nested doll (Nesting)

2Adaptability or versatility

If the massage head is extended to accommodate different neck sizes, then adaptability is improved, but the structure becomes more complex

Engineering Contradiction:
Improveadaptability to different neck sizesVSAvoidstructural complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The guide pillar transitions from a static structure to a dynamic one with movable portions that can extend and retract. This dynamic design allows the guide pillar to adapt to different massage head positions and neck sizes while using simple mechanical components like springs and sliding structures, minimizing added complexity.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The length and position of the guide pillar are made variable through the movable portions. By changing the extended/retracted state of the movable guide pillar portions, the system adapts to different neck sizes and massage requirements without requiring a completely different structure for each scenario.

Inventive Principle:
Principle #35Parameter changes

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

Enables the massage head to extend for different neck sizes and retract fully, enhancing user experience by maintaining versatility and convenience.

Implementation Method 1

there is a reset spring at the end of the said transmission shaft connected with the said driving assembly

Methodology Applied
Scientific EffectElastic potential energy: Elasticity

Implementation Method 2

the said driving assembly comprises a motor, a helical gear, a transmission gear, and an output gear

Methodology Applied
Scientific EffectElectromagnetic conversion: Electromagnetic Induction

Data Source

PatentUS20240307254A1A massager with a retractable massage head
Publication Date: 2024.09.19 SHENZHEN FREESE HEALTH EQUIP CO LTD
  • US20240307254A1 patent drawing
  • US20240307254A1 patent drawing
  • US20240307254A1 patent drawing

AI summary

The present invention discloses a massager with a retractable massage head, comprising a housing, in which there is a driving assembly. On top of the housing, there is the massage head connected with the driving assembly in a transmission way; between the housing and the massage head, there are jacking support, jacking part, and jacking bracket. The jacking bracket is connected with the top of the housing in a fixed way, the bottom of the massage head is connected with a transmission shaft in a fixed way, the end of the transmission shaft away from the massage head passes through the jacking support, the supporting part, the supporting bracket, and the top of the housing and is connected with the driving assembly, and there is a reset spring at the end of the transmission shaft connected with the driving assembly. Based on the aforesaid design, it is possible to extend the massage head by providing the jacking part, so as to meet the usage requirements of different people. Furthermore, by providing the sliding transmission shaft and the reset spring, the transmission shaft will be extended and retracted synchronously when the massage head is extended and retracted, so as to achieve the complete retraction of the massage head as a whole without affecting the other ways to use the massager, and improve the usage experience of the user.