Retractable Bed Spring-Loaded Flap Design to Reduce Crushing Risk
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Retractable beds pose risks of injury and damage due to the narrow spacing between movable and fixed sections during transitions, particularly for children and nearby objects, as they are not designed with adequate safety features to prevent trapping or crushing.
Innovation Solution
A safety device with flaps hingedly mounted to the fixed structure using spring-loaded hinges, which maintain clearance between the bedbase and side walls, allowing safe access and storage by preventing the flaps from closing until the bedbase is fully returned, thus minimizing the risk of injury and damage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If the space between the movable bedbase and the fixed frame is increased to reduce injury risk, then safety is improved, but the aesthetic appearance and space efficiency are worsened
Solution Approach 1:
A protective flap is introduced as an intermediary element between the movable bedbase and the fixed frame. The flap blocks access to the clearance space during retraction, preventing injury while allowing the clearance to remain minimal for aesthetic purposes. The flap acts as a mediator that enables both safety and compact design to coexist.
2Object-affected harmful factors
If the vertical frame is eliminated to reduce injury risk, then safety is improved, but the structural integrity and support function are worsened
Solution Approach 1:
The protective function is segmented from the main structural frame. Instead of eliminating the vertical frame, a separate protective flap element is added that performs the safety function independently. This allows the frame to maintain its structural integrity while the flap provides the protective barrier against injury.
3Shape
If the flap is allowed to close during bedbase manipulation to improve aesthetics, then appearance is improved, but the risk of trapping fingers or body parts increases
Solution Approach 1:
The flap's position is made dynamic rather than static. It automatically opens during bedbase manipulation when needed for safety, and closes when the bedbase is stationary to maintain aesthetic appearance. The spring-loaded mechanism enables the flap to adapt its state based on operational conditions, resolving the contradiction between appearance and safety.
Solution Approach 2:
The spring-loaded hinge provides mechanical feedback that prevents the flap from closing during manipulation. The spring force ensures the flap remains in the open position until the bedbase is fully retracted, at which point the flap can close. This feedback mechanism automatically responds to the operational state and enforces safety conditions.
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 solution effectively reduces the risk of injury and damage by maintaining clearance and ensuring safe operation of retractable beds, while maintaining aesthetics and functionality, as the flaps remain open until the bedbase is fully stored, blocking access to prevent accidents.
Implementation Method 1
at least one spring-loaded hinge preventing the at least one flap from closing until the displaceable bedbase is fully returned to the bed-receiving space
Data Source
AI summary
A retractable bed comprising a fixed structure comprising a pair of side walls and a bed-receiving space between the side walls, a displaceable bedbase removably storable in the bed-receiving space, wherein at least one clearance is maintained between the displaceable bedbase and one of the side walls, and at least one flap hingedly mounted to the fixed structure by at least one spring-loaded hinge, wherein in a closed position the displaceable bedbase is stored in the bed-receiving space and the at least one flap is fully closed and blocking access to the at least one clearance, and wherein in an open position the displaceable bedbase is removed from the bed-receiving space and the at least one flap is fully open and allowing access to the clearance, the at least one hinge preventing the at least one flap from closing until the displaceable bedbase is fully returned to the bed-receiving space.