Rotatable Leg Massage Device With Dual Motor Swinging Arm
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Solution Overview
Problem
Conventional lower limb massage devices are cumbersome and limited in their massage range, often requiring users to sit and restricting the areas that can be effectively massaged to the calf, ankle, or sole, while also occupying excessive space.
Innovation Solution
A rotatable leg massage device comprising a base and a swinging arm with massaging rollers, driven by two motors, allowing for a wider range of motion and adjustable massage positions, including the ability to lift the leg for enhanced blood circulation and relaxation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If a conventional lower limb massage mechanism is used, then massage function is provided, but the device occupies excessive space and has complicated structure
Solution Approach 1:
The device is divided into independent functional modules: a base unit with motor and a separate swinging arm with massaging rollers. This segmentation allows the massage function to be achieved with minimal components, reducing both device volume and structural complexity while maintaining effectiveness.
Solution Approach 2:
The swinging arm mechanism serves multiple functions: it positions the massaging rollers, provides the swinging motion for massage, and enables rotation around the base. This multi-functionality eliminates the need for separate mechanisms for each action, reducing overall device complexity and space requirements.
2Adaptability or versatility
If a conventional lower limb massage mechanism is used, then massage is provided for calf, ankle or sole, but the effective massage areas are limited
Solution Approach 1:
The swinging arm can dynamically adjust its position and angle, allowing the massaging rollers to reach different areas of the lower limb. The arm swings back and forth while rotating around the base, enabling coverage of calf, ankle, sole, and even thigh areas, significantly expanding massage area coverage compared to fixed mechanisms.
Solution Approach 2:
The device adds rotational movement around the base in addition to the swinging motion, creating a two-dimensional range of motion. This allows the massaging rollers to cover a much larger area of the lower limb by moving in both swinging and rotational dimensions, rather than being confined to a single linear path.
3Adaptability or versatility
If the lower limb massage mechanism in a massage chair is used, then the massage chair can be lifted and lowered, but the use state is limited and requires user to sit down
Solution Approach 1:
The device is designed as a standalone unit that can be used in multiple postures (sitting or lying down) without requiring integration into a massage chair. The swinging arm mechanism provides sufficient range of motion to effectively massage lower limbs regardless of user posture, making the device universally applicable and eliminating positioning constraints.
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 device provides a more extensive massage range, improved muscle relaxation, and increased user convenience, allowing for use while sitting or lying down, with reduced device volume for easier storage.
Implementation Method 1
both sides of the swinging end are respectively provided with a swinging gear. A central aperture of each swinging gear is aligned with the through apertures of the assembling base and a shaft passing through all four apertures, the two swinging gears engages the two driving gears of the first motor
Implementation Method 2
A second motor is disposed inside of the massage end and configured to rotate the two massaging rollers
Data Source
AI summary
The rotatable leg massage device has a base and a swinging arm. The swinging arm has a massaging end and a swinging end, the massaging end provided with a respective massaging roller on two sides. A second motor is disposed inside of the massage end and configured to rotate the two massaging rollers. The swinging end is disposed in front of the assembling base, and both sides of the swinging end are respectively provided with a swinging gear. A central aperture of each swinging gear is aligned with the through apertures of the assembling base and a shaft passing through all four apertures, the two swinging gears engages the two driving gears of the first motor, and the first motor is configured to drive the swinging arm to rotate around the base.