Storage Container Detent Mechanism for One-Way Drawer Closure
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Solution Overview
Problem
Existing lockable containers require time-consuming operations to unlock and close storage sections, which is inefficient for frequent access needs.
Innovation Solution
A container with a detent mechanism that allows drawers to move from an open to a closed position even when locked, using a rotating lock with cams and flats to selectively restrain movement, enabling quick closure without unlocking.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a rotating lock with cams is used to prevent drawers from opening, then security and restraint are improved, but the time required to close drawers increases
Solution Approach 1:
The lock mechanism is segmented into multiple independent cams (at least two cams positioned at different locations around the lock body), each capable of independently engaging with or releasing from the drawer. This segmentation allows the lock to perform multiple functions simultaneously - restraining drawers in the locked position while allowing rapid closure when unlocked.
Solution Approach 2:
The lock mechanism transitions dynamically between locked and unlocked states through rotation of the lock body. The cams rotate into engagement positions to restrain drawers when locked, and rotate out of engagement positions to allow free drawer movement when unlocked. This dynamic transformation enables the same mechanism to provide both security and rapid access.
2Reliability
If a lock mechanism is added to prevent inadvertent opening, then drawer security is improved, but device complexity increases
Solution Approach 1:
The rotating lock mechanism serves multiple functions: it restrains drawers in the locked position, allows rapid closure when unlocked, and provides a clear visual indicator of lock status through the position of the cams. This multi-functionality reduces the need for separate mechanisms for each function, thereby managing complexity while achieving multiple objectives.
Solution Approach 2:
The cam mechanism automatically engages with or releases from the drawer based on the rotational position of the lock body. The geometry of the cams and their interaction with the drawer create self-locking and self-releasing actions, reducing the need for additional actuating mechanisms and simplifying the overall system.
Data Source
AI summary
A storage container including a plurality of drawers for holding items therewithin. Each drawer may be held closed within the container by selective rotation of a detent mechanism which interacts with engagement means formed on each drawer. When the detent mechanism is in its open position, each drawer may be freely opened or closed. Whereas, when the detent mechanism is in its closed position, each drawer may be moved from an open to a closed position, but not from a closed to an open position.