Locking Device with Manual Override for Automatic Latch Control
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Solution Overview
Problem
Existing locking devices, particularly those with latch bolts, automatically lock doors when they come to rest on the frame, making it difficult to handle and requiring separate activation and deactivation for each latch bolt, which is not suitable for secure locking with multiple locks or for periods of high public traffic where authorized personnel are present.
Innovation Solution
A locking device with a simple structure that includes a main lock and secondary lock cases, where the connecting rod slide is spring-loaded and can be manually or electrically operated to switch between locking and unlocking positions, allowing for optional automatic and secure locking, and featuring a drive rod that interacts with the locking lever to facilitate easy handling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a latch bolt is used that automatically changes from latch position to locking position after door closure, then security is improved, but handling difficulty increases and the door cannot be easily opened during high traffic periods
Solution Approach 1:
The locking device incorporates a dynamic switching mechanism that allows the latch bolt to operate in different modes (automatic locking enabled/disabled) based on operational requirements. The operating element can be positioned to either enable automatic locking after door closure or disable it to allow easy manual retraction, making the system adaptable to different traffic conditions and security needs.
Solution Approach 2:
The system changes the operational parameter of the latch bolt from a fixed automatic locking mode to a configurable mode where the automatic locking function can be activated or deactivated. This is achieved through the operating element's ability to be set in different positions, thereby changing the behavioral parameter of the locking mechanism to suit different operational scenarios.
2Reliability
If multiple latch bolts are used for secure locking, then security is improved, but device complexity increases and separate activation for each lock is required
Solution Approach 1:
The patent combines multiple locking functions into a single integrated locking device. The operating element is coupled to multiple latch bolts through a common actuating mechanism, allowing simultaneous control of multiple locks. This merging of control functions reduces the need for separate activation mechanisms for each latch bolt, thereby reducing overall system complexity while maintaining multi-point locking capability.
Solution Approach 2:
The locking device is designed with multi-functionality where a single operating element can control multiple latch bolts, and the same mechanism can provide both automatic and manual locking modes. This universal design allows one component to perform multiple functions (controlling different locks, enabling/disabling automatic mode), reducing the number of separate components needed and simplifying the overall device structure.
3Extent of automation
If electric door openers are combined with latch bolt locks, then automated operation is improved, but compatibility is reduced because the latch cannot be pushed back after actuation
Solution Approach 1:
The system provides dynamic configurability where the automatic locking function can be switched on or off based on operational requirements. When compatibility with electric door openers is needed, the automatic locking can be disabled, allowing the latch to be manually retracted. When security is prioritized, automatic locking can be enabled. This dynamic switching capability makes the system compatible with both automated and manual operation modes.
Solution Approach 2:
The operational parameter of the latch bolt (automatic locking enabled/disabled) can be changed to accommodate different operational scenarios. This parameter change allows the system to switch between modes that are compatible with electric door openers (manual retraction allowed) and modes that provide enhanced security (automatic locking engaged), thereby improving adaptability and versatility.
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
Enables adaptable and user-friendly operation by allowing the locking device to be easily switched between automatic and secure locking modes, ensuring secure access while maintaining simplicity and compatibility with multiple locks, even during periods of high traffic or weather protection.
Implementation Method 1
The connecting rod slide (17; 20) is spring-loaded and can be moved in a locking direction into a locking position, in which the latch (6; 19) is locked, and into an unlocking position
Data Source
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AI summary
The invention relates to a locking device (1) for a door, a window or the like., comprising a main lock case (2), at least one secondary lock case (3) and at least one connecting rod (4) between the secondary lock case (3) and the main lock case (2), wherein the secondary lock case (3) has a latch bolt (19) that can be freely retracted in the latch position, wherein the latch bolt (19) can be moved beyond the normal latch position into its locking position by means of a latch spring and/or a drive arrangement of the main lock case (2) and can be retracted into the secondary lock case (3) by means of the connecting rod (4), wherein the latch bolt (19) is held in a latch position by a release (23) and the release (23) releases the latch bolt (19) when the door is closed, so that it extends into the locking position when the door is closed and engages the corresponding strike plate in the door frame, wherein a secondary lock bolt (24) moves from an unlocking position to a locking position.In order to enable easier operation at freely selectable times, it is provided that a locking lever (25) installed in the main lock case (2) fixes the drive rod (4) in the latch retraction position.