Drawer Interlock Hook and Support Strap for Tip-Over Prevention
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Solution Overview
Problem
There is a concern that furniture can tip over when weight is applied to an open drawer, potentially causing injury, especially when children climb on them.
Innovation Solution
A drawer interlock system with a support strap and locking mechanism that secures to a fixed structure, preventing drawers from opening until the strap is secured, thereby stabilizing the furniture.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the drawer is allowed to open freely, then the ease of operation is improved, but the stability of the furniture deteriorates due to tipping over risk
Solution Approach 1:
The support strap is pre-installed and positioned to automatically engage with the lock hook when the drawer is pulled open a certain distance. This preliminary positioning ensures that before the drawer can be fully opened, the support strap activates to prevent tipping, resolving the contradiction between ease of operation and furniture stability.
Solution Approach 2:
The lock hook acts as an intermediary mechanism between the drawer and the support strap. It translates the drawer's movement into activation of the support strap, creating a controlled interaction that allows drawer operation while preventing tipping through the support strap's engagement.
2Stability of the object's composition
If the drawer is locked to prevent opening, then the furniture stability is improved, but the ease of operation deteriorates
Solution Approach 1:
The locking mechanism is dynamic rather than static. The lock hook can pivot between engaged and disengaged positions based on the drawer's movement. When the drawer is pulled open sufficiently, the lock hook automatically disengages to allow full opening, providing dynamic adaptation that maintains both stability and ease of operation.
Solution Approach 2:
The support strap is pre-positioned to activate automatically when the drawer reaches a certain opening position. This preliminary setup ensures that the drawer can be opened easily without manual locking, while the support strap engages in advance to prevent tipping, resolving the contradiction between stability and operation.
3Stability of the object's composition
If a support strap is added to prevent tipping, then the furniture stability is improved, but the device complexity increases
Solution Approach 1:
The support strap system is merged with the existing drawer locking mechanism. The lock hook serves dual purposes: it locks the drawer when closed and simultaneously activates the support strap to prevent tipping. This merging of functions reduces overall system complexity while maintaining stability.
Solution Approach 2:
The lock hook is designed with multi-functionality, serving both as a drawer locking mechanism and as an activator for the support strap. This universal component reduces the need for separate mechanisms, thereby reducing device complexity while achieving the stability function.
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
Prevents drawers from opening until the support strap is secured, reducing the risk of furniture tipping over and potential injuries.
Implementation Method 1
a biasing member that is configured to urge the lock hook towards the locked configuration
Implementation Method 2
The support strap may pivot the second end portion downward to pivot the lock hook from the locked configuration to the unlocked configuration
Data Source
AI summary
A drawer locking system includes a support strap, a lock plate, and a lock hook. The lock plate is configured to mount to a locking rail of a piece of furniture. A lock hook is pivotally mounted to the lock plate and includes a body that has a first end portion and a second end portion. The lock hook has a locked configuration in which the first end portion is configured to engage a drawer to prevent the drawer from moving from a closed position towards an open position thereof. The lock hook has an unlocked configuration in which the first end portion is configured to disengage the drawer to allow the drawer to move from the closed position towards the open position. The second end portion is engaged with the support strap such that the support strap pivots the lock hook from the locked configuration to the unlocked configuration.