Robot Cam Mechanism for Smooth Curved Gestures
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Solution Overview
Problem
Conventional robots with complex structures and joint mechanisms are limited in making natural and smooth gestures, leading to increased production costs and aesthetically unappealing motions.
Innovation Solution
A robot design incorporating cam members and a flexible outer cover member that varies in shape according to the movement of the cam members, allowing for the creation of smooth, curved gestures, with a display device to synchronize arm motions with image data.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a robot uses links and joints to make gestures, then the gesture capability is achieved, but the structure becomes complicated and production cost increases
Solution Approach 1:
The patent uses a flexible outer cover member that surrounds cam members to create gesture motions. The outer cover member is made of flexible and elastic material that deforms according to cam member movements, eliminating the need for complex rigid link and joint mechanisms while achieving smooth gesture capabilities.
Solution Approach 2:
The patent changes the physical state of the outer cover member from rigid to flexible/elastic, allowing it to deform and return to its original shape. This parameter change enables the system to achieve complex gesture motions through simple cam mechanisms rather than complex linkages.
2Adaptability or versatility
If a robot uses links and joints to make gestures, then the gesture capability is achieved, but the gesture appears unnatural and smooth motion is lost
Solution Approach 1:
The flexible outer cover member continuously deforms and returns to its original shape, creating smooth and natural-looking gestures. The flexibility of the material allows for continuous motion transitions rather than discrete joint movements, achieving aesthetically pleasing gesture patterns.
Solution Approach 2:
The cam members are designed with curved surfaces and rounded corners, and the outer cover member conforms to these curved shapes during deformation. This curvature design ensures that the gestures appear natural and smooth rather than angular or mechanical.
3Shape
If a robot uses multiple cam members and flexible outer cover, then natural gestures are achieved, but the structure becomes more complex
Solution Approach 1:
The flexible outer cover member serves as a universal interface that can accommodate multiple cam members with different shapes and motion patterns. This single flexible component replaces what would otherwise require multiple specialized linkages for each gesture type, reducing overall structural complexity.
Solution Approach 2:
The outer cover member is designed to be universally applicable to multiple cam members, allowing the same flexible component to produce various gesture types through different cam configurations. This multi-functionality reduces the need for separate mechanisms for each gesture.
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 robot achieves natural and smooth gesture movements, enhancing emotional expression and aesthetic appeal while reducing production complexity and costs.
Implementation Method 1
The outer cover member may be made of a flexible and elastic material. The shape of the outer cover member may be varied into a curved shape.
Data Source
AI summary
Disclosed herein is a robot, which has a simple structure and makes a gesture in a curved shape. The robot includes a body part, at least one cam member symmetrically arranged at both sides of the inside of the body part, an outer cover member surrounding the at least one cam member, and a linear moving device to linearly move the at least one cam member. The shape of the outer cover member is varied, under the condition that the outer cover member is adhered closely to the at least one cam member, according to the movement of the at least one cam member.