Zip-Fastened Belt Actuator for Lightweight Force Transmission
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Solution Overview
Problem
Existing chain-based actuator systems are cumbersome due to their weight, complex and expensive to produce, and require frequent maintenance, especially when used in zipper systems for lifting items.
Innovation Solution
A belt actuator system utilizing a belt zipper system that forms a third belt element through a zip-fastening mechanism, allowing for synchronous movement of belt elements with a single motor for both actuation and storage, eliminating the need for additional motors or lubrication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Force
If chains are used in actuator systems, then the chain can effectively transmit force and move loads, but the chain becomes difficult to handle due to its weight
Solution Approach 1:
The patent changes the material parameter from metal to plastic, fundamentally altering the weight characteristic while maintaining the chain's structural function for force transmission
Solution Approach 2:
The plastic chain is designed as a simpler, potentially replaceable component that eliminates the need for complex maintenance procedures associated with metal chains
2Reliability
If metal chains are used in zipper systems, then the chain can provide reliable mechanical connection, but the production becomes difficult and expensive due to complex production process
Solution Approach 1:
Changing from metal to plastic material simplifies the manufacturing process significantly, allowing for easier molding and assembly while maintaining sufficient mechanical reliability for the application
Solution Approach 2:
The patent replaces complex metal chain link connections with a simpler plastic construction that achieves the same mechanical connection function through different, easier-to-manufacture means
3Productivity
If metal chains are used in zipper systems, then the chain can effectively transmit motion, but additional maintenance efforts are required, e.g. providing lubrication means
Solution Approach 1:
The plastic chain is designed to be self-lubricating or maintenance-free, eliminating the need for external lubrication systems and reducing operational complexity
Solution Approach 2:
The plastic chain accepts a simpler, potentially disposable design that eliminates complex maintenance procedures, making the system more suitable for applications where maintenance access is difficult
4Adaptability or versatility
If separate motors are used for zipping and storing belt elements, then each function can be independently controlled, but the device complexity increases
Solution Approach 1:
A single motor is designed to perform multiple functions - both zipping/unzipping and storing/retrieving belt elements - through a unified drive mechanism that eliminates the need for separate motors
Solution Approach 2:
The patent combines the drive mechanisms for zipping and storing functions into a single integrated motor system, reducing component count and overall system complexity
Data Source
AI summary
A belt actuator system includes at least a drive unit, a belt zipper system configured to form a third belt element in a zip-fastening manner of a first belt element and a second belt element comprising: a guiding arrangement configured to move the first belt element and the second belt element in a synchronous manner; a first zip-fastening arrangement, wherein the first zip-fastening arrangement is configured to connect a first part of the first belt element with a second part of the second belt element in a zip-like manner to obtain the third zip-fastened belt element, and wherein the drive unit is connected to the first zip-fastening arrangement configured to drive the first zip-fastening arrangement.