Wearable Sitting Posture Assisting Device with Manual Locking Control
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Solution Overview
Problem
Existing wearable sitting posture assisting devices lack comfort, user-friendliness, and reliability, particularly in providing adjustable and intuitive handling to support various sitting angles and postures while minimizing muscle effort.
Innovation Solution
A wearable sitting posture assisting device featuring leg units with knee joints and locking mechanisms, actuation units with manually operable elements, and a design that allows for flexible adjustment of sitting angles, enabling easy handling and reliable operation across different postures and environments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a locking mechanism is provided for the knee joint, then reliability is improved, but ease of operation deteriorates due to complex manual control requirements
Solution Approach 1:
The locking mechanism is designed to lock and unlock automatically based on the detected sitting posture, eliminating the need for manual operation. The system self-regulates by detecting whether the user is in a correct sitting posture and engaging the lock accordingly, thus improving ease of operation while maintaining reliability through automatic control.
Solution Approach 2:
The manual mechanical control system is replaced with an automated detection and control system that uses sensors to detect sitting posture and automatically actuates the locking mechanism, reducing the operational burden on the user while ensuring reliable locking when needed.
2Adaptability or versatility
If the device supports various sitting angles, then adaptability is improved, but device complexity increases due to multiple locking positions
Solution Approach 1:
The locking mechanism is designed with dynamic characteristics, allowing it to adapt to different sitting angles automatically. The system can lock at multiple positions (e.g., 90 degrees, 110 degrees, 130 degrees) based on the detected posture, providing adaptability without requiring complex manual adjustment mechanisms.
Solution Approach 2:
The locking mechanism is designed to perform multiple functions by supporting various locking positions for different sitting angles. This multi-functional design allows a single mechanism to accommodate diverse sitting requirements without increasing overall device complexity.
3Ease of operation
If automatic locking control is implemented, then ease of operation is improved, but reliability deteriorates due to potential operating errors
Solution Approach 1:
The system incorporates feedback mechanisms that continuously monitor the sitting posture and the locking mechanism status. The control unit receives feedback from sensors detecting the sitting angle and adjusts the locking control accordingly, ensuring that the lock is engaged only when the correct posture is detected, thereby preventing operating errors while maintaining ease of automatic operation.
Data Source
AI summary
A wearable sitting posture assisting device includes at least one leg unit featuring at least one knee joint and featuring at least one locking unit for the knee joint; includes at least one second leg unit featuring at least one second knee joint and featuring at least one second locking unit; and includes at least one actuation unit featuring at least one manually operable actuation element for mechanically controlling the locking unit and/or the second locking unit.