Bed Lift System with Lock Assembly to Reduce Sheet-Changing Strain
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Solution Overview
Problem
Manual bed sheet changing poses safety and health risks due to frequent bending, which can lead to strain and injuries, especially in high-frequency settings like hotels where numerous beds need to be made daily.
Innovation Solution
A lift system with a lifting assembly and lock mechanism that allows a bed to be raised or lowered, reducing the need for manual bending and incorporating a release device for secure operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If manual bed sheet changing is performed by bending over, then the bed sheets can be changed, but safety and health issues arise due to strain on the back and hands
Solution Approach 1:
The lifting assembly uses a counterweight mechanism to balance the weight of the bed structure, allowing the bed to be easily raised and lowered without manual bending. The counterweight offsets the gravitational force on the bed, enabling safe and efficient bed sheet changing by eliminating the need for personnel to bend under heavy loads
2Ease of operation
If a lifting assembly is added to raise the bed, then the effort required to change sheets is reduced, but the device complexity increases
Solution Approach 1:
The lifting system is divided into separate functional modules: a lifting assembly with counterweight mechanism, a locking mechanism with locking member, and a release device. This segmentation allows each component to perform its specific function independently, simplifying the overall design while maintaining ease of operation. The locking mechanism engages automatically at predetermined positions without requiring complex control systems
Solution Approach 2:
The locking mechanism automatically engages the locking member with the support structure at predetermined positions during bed movement, eliminating the need for manual locking operations. The system self-regulates its positioning through the interaction between the locking member and the support structure, reducing operational complexity while ensuring safe positioning
3Reliability
If a locking mechanism is implemented to secure the bed in position, then safety is improved, but the device complexity increases
Solution Approach 1:
The locking member acts as an intermediary component between the lifting assembly and the support structure. It automatically engages with predetermined positions on the support structure to secure the bed at specific heights, providing reliable positioning without requiring complex locking systems. The release device simply needs to disengage this intermediary locking member to allow movement
Data Source
AI summary
A lift system comprises a plurality of bottom components, a plurality of top components structured to support a structure thereon, and a lifting assembly coupled to each of the plurality of bottom components and the plurality of top components. The lifting assembly comprises a plurality of lifting members configured to move the lifting assembly between a lowered configuration and a raised configuration, and a locking member coupled to a corresponding lifting member and configured to move between a locked position and an unlocked position in the raised and lowered configuration of the lifting assembly. A lock assembly is coupled to the lifting assembly and includes a lock/unlock member and a linking component coupling the lock/unlock member to the locking member. A release device is selectively engaged with the lock/unlock member by a user to activate the lock assembly for unlocking the locking member.