Indicator Door Lock with Pivoting Display for Visual Status
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Solution Overview
Problem
Conventional door locks lack an intuitive way for users to check the lock state from the outside and are not miniaturized for improved convenience and security.
Innovation Solution
An indicator-type door lock with a handle shaft, push button, driving body, and pivoting indicator members that display the lock state through a main body cover, allowing users to visually confirm the lock status from the outside by pivoting display members marked with 'CLOSED' or 'OPEN' when the push button is pressed.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If an indicator member is added to display lock state, then user convenience is improved, but device complexity increases
Solution Approach 1:
The indicator member is nested within the door lock main body, utilizing the existing internal space to house the display mechanism without requiring a separate external housing. This integration minimizes the increase in device complexity while providing the desired user convenience feature.
Solution Approach 2:
The indicator member acts as an intermediary element that translates the internal lock state into a visible display for users. This mediator component provides the necessary information without requiring direct exposure of the complex internal locking mechanism, thus improving user convenience while managing complexity.
2Ease of operation
If the door lock device is miniaturized, then ease of operation is improved, but the indicator mechanism becomes more difficult to implement
Solution Approach 1:
The indicator mechanism is segmented into distinct functional components (indicator member, display portion, driving mechanism) that can be independently designed and assembled. This segmentation allows for miniaturization of each component while maintaining the overall functionality, making the indicator mechanism feasible within a compact door lock design.
Solution Approach 2:
The indicator member utilizes rotational movement within a limited radius, transforming a potentially complex linear actuation problem into a simpler rotational display mechanism. This dimensional approach allows the indicator to provide clear visual information while occupying minimal space, facilitating miniaturization.
3Ease of operation
If the indicator member is exposed through the main body cover, then ease of operation is improved, but manufacturing precision requirements increase
Solution Approach 1:
The indicator member is extracted as a separate, removable component from the main body cover assembly. This extraction allows for independent manufacturing and assembly of the indicator mechanism, reducing the overall manufacturing precision requirements for the entire door lock assembly while maintaining clear visibility of the lock state.
Solution Approach 2:
The indicator member is pre-assembled and pre-positioned within the door lock main body before final integration with the main body cover. This preliminary action ensures proper alignment and positioning, reducing the precision requirements during the final assembly stage while maintaining the exposed display configuration.
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
Enhances user convenience by providing an intuitive visual indication of the lock state and miniaturizes the door lock device by converting push force into rotational force for the indicator mechanism, improving security and usability.
Implementation Method 1
a cam portion moving in a straight direction in the handle shaft by the push button and having at least one cam post formed on its front surface
Implementation Method 2
A pin spring may be installed in the pivot point of the first display member and the second display member to apply an elastic force between the first display member and the second display member
Data Source
AI summary
An indicator-type door lock that may prevent the door lock device from being enlarged while user may intuitively identify the lock state of the door lock at the outside. An indicator-type door lock including: a handle shaft having a handle for unlocking and a push button for locking; a driving body mounted with the handle shaft; a door lock main body having a main body cover with at least one display portion displaying the locked state of the door lock to the outside, and installed in front of the driving body; an indicator member installed within the door lock main body to be pivoted to a certain radius, and being exposed through the display portion; and a turning drive member for pivoting the indicator member located within the handle shaft and rotated inside the handle shaft when the push button is pressed to pivot indicator member.