Storage Locker Lock Door Structure Against Lock Tampering
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Solution Overview
Problem
Existing lockable storage devices are vulnerable to tampering, particularly at the hinge and periphery of the main door, and the main lock attachment can be compromised, necessitating enhanced security measures.
Innovation Solution
A storage locker design featuring a movable latch main lock with a back plate, lock door, adjustable stop member, and fixed stop extension to secure the lock edge, preventing unauthorized access and tampering.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the main lock is installed directly on the main door, then the locking function is simple, but the lock attachment can be tampered with and rendered useless
Solution Approach 1:
The patent implements a nested structure where the lock door is placed inside the main door assembly, and the lock attachment is mounted on the lock door rather than directly on the main door. This nested arrangement protects the lock attachment by placing it within the protected space defined by the lock door, while maintaining the overall simplicity of the door locking system.
Solution Approach 2:
The lock door serves as an intermediary element between the main door and the lock attachment. It provides a protective barrier that prevents direct access to the lock attachment, thereby securing it against tampering while still allowing the lock to function properly when the lock door is in the closed position.
2Reliability
If the lock area is fully secured, then the lock attachment is protected from tampering, but the area requires complete security coverage increasing complexity
Solution Approach 1:
The patent applies local quality by providing security coverage only in the specific area where the lock attachment is located, rather than securing the entire main door periphery. The lock door is positioned to cover only the lock edge and lock attachment area, providing focused protection where needed while leaving other areas of the door structure unchanged.
3Reliability
If the stop member provides a tight fit, then the lock door is securely held in closed position, but the stop member may be forced and fail
Solution Approach 1:
The patent implements beforehand cushioning by providing a backup stop limit through the fixed stop extension with a slot. If the adjustable stop member is forced or fails, the latch can travel through the slot in the fixed stop extension to engage with the backup stop limit, preventing complete failure and providing a safety mechanism against excessive force.
Data Source
AI summary
The present document describes a storage locker in which a main lock having a movable latch may be installed. The storage locker comprises a housing defining a storage area having an opening. The storage locker also comprises a main door for covering the opening. The main door comprises a lock edge. The storage locker further comprises a back plate extending from the housing and a lock door linked to the back plate. The lock door is for covering the lock edge. The main lock is attached to the lock door. The storage locker further comprises a stop member attached to the back plate for acting as a stop limit for the latch to keep the lock door in the lock door closed position.