Automatic Locking Mechanism for Semi-Stationary Shutters
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Solution Overview
Problem
Existing locking devices for semi-fixed and movable leaves require manual operation to unlock or lock, which is restrictive, especially for physically impaired users, and often compromise aesthetics due to the size and visibility of the locking elements.
Innovation Solution
A locking device that automatically unlocks or locks the semi-fixed leaf when the movable leaf is opened or closed, using a cam and control member mechanism that allows the first retaining member and control member to move between locking and release configurations, enabling discreet and compact design.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual unlocking operation is used, then the locking element can be securely unlocked, but the operation becomes restrictive and difficult for physically impaired users
Solution Approach 1:
The locking device automatically unlocks when the movable leaf is opened by using the movement of the movable leaf itself to trigger the unlocking mechanism, eliminating the need for separate manual unlocking operations and making the system self-servicing
Solution Approach 2:
The locking element is pre-configured to automatically respond to the opening movement of the movable leaf, so that the unlocking action is prepared and executed as part of the opening sequence without requiring additional user intervention
2Ease of operation
If the locking element is made larger for easier manipulation, then ease of operation improves, but the aesthetics of the frame is compromised
Solution Approach 1:
The locking mechanism performs its function automatically through the cam-controlled mechanism that responds to the opening of the movable leaf, eliminating the need for manually operable handles or levers that would compromise aesthetics
Solution Approach 2:
The traditional manually operable locking handles or levers are removed from the design, extracting the aesthetic-compromising elements while retaining the essential locking function through the automated cam-controlled mechanism
3Shape
If the locking element is made smaller to preserve aesthetics, then the appearance of the frame improves, but manipulation becomes difficult
Solution Approach 1:
The locking and unlocking actions are performed automatically by the system itself through the cam mechanism that responds to the opening and closing of the movable leaf, eliminating the need for user manipulation regardless of the locking element size
Solution Approach 2:
The manual mechanical manipulation system is replaced with an automated cam-controlled mechanism that uses the movement of the movable leaf to drive the locking and unlocking actions, substituting user effort with automated mechanical action
4Ease of operation
If automatic unlocking is implemented, then ease of operation for physically impaired users improves, but the device complexity increases
Solution Approach 1:
The cam mechanism serves multiple functions: it controls both the locking and unlocking actions, responds to the opening and closing movements of the movable leaf, and integrates with the existing window or door structure, reducing the need for separate dedicated components
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
Eliminates the need for manual operation, improves accessibility for physically impaired users, and maintains the aesthetics of the frame by integrating the locking mechanism in a compact and discreet manner.
Implementation Method 1
a cam intended to be integral with the movable leaf to cooperate with the control member so as to urge the locking element towards its locking configuration
Data Source
Figure 1~2
Figure 3~4
Figure 5~6
AI summary
The device has a retaining element integrated to a semi-fixed casement (2) and a control unit i.e. longitudinal section. Another retaining element and the control unit are movably mounted on a circumference of an opening frame in vicinity of a collision area of two casements. Attracting units attract a locking element i.e. bar (10), toward a release configuration. A cam (60) is integrated to a movable casement for cooperating with the control unit so as to attract the locking element toward a locking configuration.