Magnetic Privacy Lock Actuation Without External Orifices
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Solution Overview
Problem
Existing privacy locksets lack aesthetic appeal and design flexibility due to exposed orifices for unlocking mechanisms, require specific tools for operation, and often cannot be locked from the outside once closed, leading to potential accidental unlocking.
Innovation Solution
A magnetic privacy lock mechanism using a shaft actuator magnet and collar with embedded magnets, allowing for magnetic object interaction to control lock actuation, enabling secure and convenient locking and unlocking from the exterior without visible holes or specific tools.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a slot or orifice is provided on the exterior door handle for mechanical release, then the lock can be opened from the exterior in case of emergency, but the aesthetics are degraded and design freedom is limited
Solution Approach 1:
The patent replaces the traditional mechanical release system (requiring a slot/orifice and physical tool insertion) with a magnetic field-based release system. A magnet embedded in the door handle interacts with a magnetically actuated cam mechanism inside the lock, eliminating the need for external slots or orifices while maintaining exterior release capability.
2Ease of operation
If a mechanical release mechanism with linear path is used, then the lock can be opened from the exterior, but the design is constrained by the required linear path from orifice to internal release point
Solution Approach 1:
The magnetic field acts instantaneously through the door thickness without requiring a linear mechanical path. The magnet in the handle directly actuates the cam mechanism through magnetic attraction, eliminating the need for mechanical linkages, slots, or linear paths that would constrain the design.
3Ease of operation
If traditional privacy lock mechanism is used, then the lock can be operated from the inside, but it cannot be readily locked from the outside once the door is closed
Solution Approach 1:
The magnetic cam mechanism allows the same magnetic actuator to perform both locking and unlocking functions depending on its position. When the magnet is in one position, it locks the cam; when moved to another position, it unlocks the cam. This enables the door to be locked or unlocked from either side using the same magnetic actuator, providing universal functionality.
4Ease of operation
If exposed orifices are provided for unlocking mechanisms, then the lock can be opened with simple tools, but the presence of holes detracts from aesthetics and limits design possibilities
Solution Approach 1:
The magnetic field-based actuation eliminates the need for physical slots or orifices that would compromise aesthetics. A small magnet embedded in the handle surface is sufficient to actuate the internal cam mechanism through magnetic attraction, allowing the exterior surface to remain clean and aesthetically pleasing while maintaining release functionality.
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
The magnetic mechanism provides a concealed and versatile solution for locking and unlocking, enhancing aesthetics and usability by allowing external operation without visible orifices and accommodating various lock types, while ensuring secure operation.
Implementation Method 1
a magnetic object is configured to draw the shaft actuator magnet and the shaft towards the magnetic object when the magnetic object is placed in close proximity to the shaft actuator magnet
Data Source
AI summary
A method for unlocking and/or locking a privacy lockset from the exterior of the lockset or door and without the use of buttons, keys, or an object inserted into the lockset or door. The operator manipulates a magnetic object, such as a magnet or piece of ferrous metal, on the exterior of the door or lockset to cause an internal magnet attached to a rod to move the rod in and out of a collar, the far end of the rod in turn actuating the lock into a locked and/or unlocked position. Rotational, lateral, and/or thrust forces may be configured to actuate the lock. The invention may apply to rim locks, mortise locks, sliding door locks, cylinder locks, and non-keyed deadbolts.