Hidden-Handle Door Lock With Bump Knob and Smart Access
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Solution Overview
Problem
Traditional door knobs are vulnerable to unauthorized entry and lack user-friendly accessibility features, especially for individuals with limited manual dexterity, and there is no clear indication of the lock status.
Innovation Solution
A hands-free bump knob mechanism that allows users to actuate the lock bolt by pushing, integrated with a smartlock system that includes electrical connectors and hardware adapters for expanded functionality, and an authentication module for secure access.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional exposed door knobs are used, then the door can be operated easily, but the risk of unauthorized entry increases and manual dexterity is required
Solution Approach 1:
The patent replaces the traditional mechanical rotation-based door knob with a push-button actuation system. The bump knob translates linear pushing motion into rotational motion of the lock mechanism through a cam or eccentric mechanism, eliminating the need for manual dexterity in rotation while maintaining ease of operation. This mechanical substitution resolves the contradiction by providing both enhanced security (through integrated smartlock features) and ease of use (through simplified push motion).
Solution Approach 2:
The patent introduces an intermediary authentication module between the user and the lock mechanism. This module can include biometric sensors, RFID readers, or keypad systems that verify user identity before enabling lock actuation. The intermediary provides an additional security layer without requiring complex manual operations, as the authentication process is automated through sensors and processors.
2Reliability
If traditional door knobs are used, then the structure is simple, but there is no clear indication of lock status and vulnerability to tampering increases
Solution Approach 1:
The patent incorporates LED indicators that change color or illuminate to clearly indicate the lock status. For example, a green LED may indicate locked status while a red LED indicates unlocked status. This visual feedback system provides immediate, unambiguous status information to users without requiring them to physically check the lock position, thereby enhancing reliability of status indication while the complexity is managed through integrated circuitry.
Solution Approach 2:
The patent integrates multiple functions into a single door lock unit, combining the traditional locking mechanism with smartlock capabilities, authentication systems, status indicators, and communication modules. This multi-functional integration provides comprehensive security features and status indication while consolidating complexity into a unified device rather than separate components, making the system both capable and manageable.
3Ease of operation
If hands-free bump knob is implemented, then accessibility is improved, but the locking mechanism requires new actuation method
Solution Approach 1:
The patent replaces the traditional rotational mechanical interface with a linear push interface. The bump knob is designed to be pushed directly toward the door surface, translating this linear motion into the necessary rotational or linear actuation of the lock bolt through cam mechanisms, linkages, or direct drive systems. This substitution provides hands-free accessibility (improving ease of operation) while the mechanical translation components manage the complexity of the actuation mechanism.
Data Source
AI summary
A door lock may include an exterior door lock plate assembly configured to be secured to a door. The door lock may include electronics configured to execute at least one function to support the door lock. A rechargeable energy storage element may be in electrical communication with the electronics, and be configured to store and supply electrical power to the electronics. An electrical conductor interface element may be in electrical communication with the rechargeable energy storage element. An electrical conductor may be electrically connected between the rechargeable energy storage element and the electronics. A strike plate and/or electrical connector thereat may provide electrical power to the electrical conductor interface element of the door lock using electrical conduction or induction such that power from the strike plate and/or electrical connector is supplied the rechargeable energy storage element when the door is in a closed state.