Window Closure Locking Slide Dynamics
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Solution Overview
Problem
Conventional window and door closures require active unlocking to open, even when subjected to sufficient external forces, which can lead to unintentional opening due to wind or other minor forces, and lack user-friendly operation without mechanical handles.
Innovation Solution
A closure system with a locking carriage that has an intermediate 'day' position, allowing automatic unlocking with sufficient force while maintaining security against unintentional opening, and incorporates a motor-driven spindle drive for user-friendly operation without handles, utilizing a self-locking mechanism and optional emergency actuation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the locking slide is designed to prevent movement of the closure element from the blocking position to the release position, then security against unintentional opening is improved, but the ability to open the leaf with sufficient force is worsened
Solution Approach 1:
The locking slide is designed with elastic deformability, allowing it to dynamically adapt its locking strength. Under normal conditions, it maintains a rigid locking position to prevent unintentional opening. However, when sufficient force is applied through the actuator, the elastic locking slide deforms to allow movement from blocking to release position, enabling intentional opening while maintaining security against minor forces like wind gusts.
2Ease of operation
If a motor-driven spindle drive is used for user-friendly operation, then ease of operation is improved, but device complexity is worsened
Solution Approach 1:
The traditional mechanical coupling between a handle and the locking mechanism is replaced with a motor-driven spindle drive system. The motor converts electrical signals to rotational motion, which is then transmitted through a spindle mechanism to actuate the locking slide. This substitution eliminates the need for complex mechanical linkages and handles, providing user-friendly operation through simple electrical actuation while reducing mechanical complexity.
3Reliability
If the locking element is automatically moved into blocking position during closing, then security function is improved, but the ability to override with force is worsened
Solution Approach 1:
The locking system implements dynamic security adaptation through the elastic locking slide. During normal operation, the locking element is automatically moved to the blocking position by the actuator, providing reliable automatic locking. However, the elastic locking slide can be dynamically overridden by applying sufficient force through the actuator, allowing the locking element to move from blocking to release position. This provides conditional security that adapts to user needs while maintaining protection against minor forces.
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 secure closure against wind-induced opening while allowing automatic opening with sufficient force, providing user-friendly operation through motor-driven mechanisms and ensuring security and ease of installation without mechanical coupling, and includes an emergency operation mechanism for power failures.
Implementation Method 1
a locking slide (21), which is guided displaceably on the base body (12) between a locking position and an unlocking position and is pretensioned in the direction of its locking position by at least one spring (28)
Implementation Method 2
The locking element can be pivoted between its release position and its blocking position, for example, about a pivot axis running transversely to the opening direction
Implementation Method 3
the pin can preferably be designed as a mushroom-head pin
Data Source
Figure 1
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Figure 3
AI summary
The invention relates to a closure (10) for a window, a door, or the like. The window, the door, or the like has a frame and a leaf which can be moved relative to the frame. The closure (10) comprises a main part (12) which is designed to be secured to the frame or to the leaf; a closure element (14) which is rotatably mounted on the main part (12) and which defines a retaining seat (16) for a latch element secured to the leaf or to the frame and can be moved between a release position that releases the latch element in an opening direction (R) of the leaf and a blocking position that blocks the latch element in the opening direction (R); and a latch slide (21) which is guided in the main part (12) such that it can be moved between a locking position and an unlocking position and which is biased by at least one spring in the direction of the locking position; wherein in the locking position, the latch slide (21) prevents the closure element (14) from moving out of the blocking position into the release position, and in the unlocking position, the latch slide allows the closure element (14) to move between the blocking position and the release position; and between the locking position and the unlocking position the latch slide (21) has a daytime position, in which the latch slide can be deflected in the direction of the unlocking position as a result of a movement of the closure element (14) between the blocking position and the release position, thereby overcoming the spring force of the spring.