Door Locking System with Magnetic Actuation and Integrated Keypad
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Solution Overview
Problem
Conventional door locking systems with bulky doorknobs and separate keypads pose difficulties for users in grasping and operating, especially when hands are of varying sizes, and the complexity of electronic components leads to large, cumbersome designs that are hard to manage single-handedly.
Innovation Solution
A door locking system with a cylindrical doorknob featuring a centrally positioned ergonomic gripping surface and an integrated alphanumeric keypad, utilizing a magnetic locking mechanism and a keyed cylinder for independent locking and unlocking, allowing single-handed operation and installation without additional drilling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the doorknob includes electronic components and locking mechanisms, then the locking functionality is improved, but the size and complexity of the doorknob increases making it difficult to grasp and operate
Solution Approach 1:
The locking mechanism is segmented into two independent systems: a magnetic locking mechanism with first and second plates that can engage independently, and a mechanical keyed cylinder mechanism. This segmentation allows each mechanism to be optimized separately while reducing the overall operational complexity for the user.
Solution Approach 2:
The patent merges the electronic keypad interface with the mechanical doorknob structure, integrating the alphanumeric keypad into the doorknob body rather than placing it separately. This consolidation reduces the number of separate components the user must interact with, improving ease of operation while maintaining advanced locking functionality.
2Adaptability or versatility
If the doorknob is made bulky to accommodate electronic components, then the locking mechanism capability is improved, but the doorknob becomes difficult to manipulate single-handedly
Solution Approach 1:
The doorknob is designed to support multiple locking operations: magnetic locking via the electrical actuator, mechanical locking via the keyed cylinder, and electronic code-based locking via the alphanumeric keypad. This multi-functionality is achieved without significantly increasing the doorknob size, as all mechanisms are integrated into the existing doorknob structure.
Solution Approach 2:
The patent replaces traditional mechanical locking mechanisms with a magnetic locking mechanism that uses electrical actuators to engage and disengage the first and second plates. This substitution reduces the need for bulky mechanical components while maintaining robust locking capability, thereby improving single-handed operability.
3Volume of moving object
If the keypad is placed on a separate surface adjacent to the doorknob, then the doorknob size can be reduced, but installation requires additional drilling and the operation becomes more complex
Solution Approach 1:
The alphanumeric keypad is merged with the doorknob structure, with the keypad integrated into the doorknob body rather than mounted separately. This integration allows the entire assembly to be installed through a single door opening using existing hardware holes, eliminating the need for additional drilling while maintaining a compact design.
4Ease of operation
If the doorknob length is increased to provide gripping surface, then the gripping comfort is improved, but the doorknob becomes bulkier and harder to operate
Solution Approach 1:
The doorknob features a centrally positioned gripping surface with enhanced local quality - a raised or textured gripping area located at the center of the doorknob. This localized gripping enhancement provides comfortable hand contact without extending the overall doorknob length, thereby maintaining compact dimensions while improving operability.
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
Facilitates comfortable, single-handed operation and installation of the locking system, providing both electronic and manual locking options, ensuring ease of use and convenience while maintaining compatibility with existing door installations.
Implementation Method 1
a magnetic locking mechanism
Data Source
AI summary
A locking system for a door, including a primary locking mechanism and a secondary locking mechanism, in which the primary locking mechanism includes an electrical actuator that causes a first plate and a second plate to be magnetically attracted to one another when actuated such that rotation of a doorknob effects a corresponding rotation of the spindle, and in which the secondary locking mechanism includes a detent that is formed in a knob collar and an aperture that extends through a rotator collar; and a pin that is translatable through the aperture to be disposed in the detent of the knob collar, when the secondary locking mechanism is in an unlocked condition, such that the knob collar and the rotator collar are rotatably fixed to one another.