Hasp Lock with Cylindrical Retainer for Garage Door Security
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Solution Overview
Problem
Existing hasp style locks are not designed to accept cylindrical locks, lacking the enhanced security features that cylindrical locks provide, such as resistance to picking, grinding, and bolt cutter attacks.
Innovation Solution
A hasp lock configuration that specifically accommodates a cylindrical lock, featuring rounded rectangular holes and a cylindrical lock retainer to securely house the lock, preventing removal by cutting or grinding and allowing for easy key access while maintaining compatibility with shackle locks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a common loop type lock is used in a hasp, then the hasp can be locked, but the lock is vulnerable to cutting and grinding attacks
Solution Approach 1:
The hasp is designed with a universal mounting structure that can accommodate both cylindrical locks and shackle locks. The mounting plate with holes and retainer mechanism provides a standardized interface that works with different lock types, allowing the system to benefit from cylindrical lock security while maintaining compatibility with traditional shackle locks.
2Reliability
If a cylindrical lock is installed in a hasp, then security against picking and grinding is improved, but the hasp structure must be redesigned
Solution Approach 1:
The hasp is divided into separate functional components: a mounting plate for structural attachment, a retainer mechanism for securing the lock, and the hasp body for latching. This segmentation allows the cylindrical lock to be integrated into the mounting plate without requiring complete redesign of the entire hasp structure.
Solution Approach 2:
A retainer mechanism serves as an intermediary between the hasp structure and the cylindrical lock. The retainer with its engagement features provides a standardized interface that simplifies the integration of the cylindrical lock into the hasp, reducing the overall structural complexity.
3Ease of manufacture
If a shackle lock is used in a hasp, then the hasp can be locked, but the lock can be easily cut through the shackle
Solution Approach 1:
The patent replaces the vulnerable shackle mechanism with a cylindrical lock that uses a different mechanical principle - a keyed cylinder that rotates to engage internal locking components. This substitution eliminates the cuttable shackle while maintaining the fundamental latching function of the hasp.
4Device complexity
If the hasp is designed to accept only shackle locks, then the structure is simple, but security features are limited
Solution Approach 1:
The hasp incorporates a universal mounting interface that can accommodate multiple lock types including both cylindrical locks and shackle locks. The mounting plate with standardized holes and the retainer mechanism create a flexible system that accepts different lock configurations without requiring structural modifications.
Data Source
AI summary
Improvements in a hasp are disclosed. The hasp allows for locking the hasp with a cylindrical lock to operate on a door such as, but not limited to, a garage door, a roll-up door or a shed door. This configuration allows for upgrade or replacement of these types of door locks without requiring re-design or replacement of the door. The cylindrical locks offer a greater protection because they can't be “picked” using traditional lock picking tools. This makes the lock safer from people that may try to break into the door. The cylindrical lock fits primarily within the hasp. This prevents a person from grinding through the lock or shackle. The shackle can be configured with just the circular opening for the key visible. It can be further enclosed to prevent infestation from bugs such as hornets that can fill the inside of the hasp with dirt.