Window Locking Assembly Gear Mechanism
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Solution Overview
Problem
Existing window locking arrangements for skylights are not cost-effective and lack modularity, with existing solutions failing to provide a reliable mechanism for ensuring the window remains locked in its closed position while allowing easy opening.
Innovation Solution
A locking arrangement featuring a gear system that converts linear movement into rotary movement of a locking part, which engages or disengages with a locking pin to lock or unlock the window, combined with an incorrect operation lock to prevent mishandling, utilizing a rack and pinion gear mechanism and a mishandling lock for enhanced security and simplicity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a locking mechanism is provided to secure the window in closed position, then security and reliability are improved, but device complexity increases
Solution Approach 1:
The patent combines the locking mechanism and operating handle into a single integrated unit where the handle directly actuates the locking element through a gear mechanism. This merging reduces the number of separate components and simplifies the overall assembly while maintaining reliable locking functionality.
Solution Approach 2:
The operating handle serves multiple functions: it acts as both the manual actuator for locking/unlocking and as part of the transmission mechanism through its gear connection. The gear mechanism itself serves dual purposes of motion conversion and force transmission, reducing the need for separate actuation components.
2Ease of operation
If a gear mechanism is added to convert linear movement to rotary movement, then ease of operation is improved, but device complexity increases
Solution Approach 1:
The gear mechanism is integrated directly into the operating handle assembly, merging the transmission function with the actuation function. This eliminates the need for separate transmission components and reduces overall complexity while providing smooth motion conversion for easy operation.
Solution Approach 2:
The gear mechanism acts as an intermediary element that mediates between the linear motion of the slide and the rotary motion required by the locking element. This intermediary conversion provides mechanical advantage and ensures precise engagement while maintaining simplicity through direct gear-to-locking-element connection.
3Reliability
If a misoperation lock is provided to prevent accidental locking, then reliability is improved, but device complexity increases
Solution Approach 1:
The misoperation lock is integrated into the existing locking mechanism structure, using the same locking element and gear components already present in the system. The safety function is achieved through the inherent mechanical interlocking of the gear teeth with the locking element, eliminating the need for separate safety components.
Solution Approach 2:
The misoperation lock functions through the natural mechanical constraints of the gear mechanism itself. The gear teeth and locking element are designed to only engage when proper rotational force is applied in the correct direction, automatically preventing accidental locking without requiring additional actuators or control systems.
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
The solution provides a cost-effective, modular, and reliable locking mechanism that ensures the window is securely locked in its closed position while allowing easy opening, with the gear system ensuring precise control and the mishandling lock preventing accidental locking or unlocking.
Implementation Method 1
A gear mechanism is provided which converts a linear movement of the slide into a rotary movement of at least one locking element
Data Source
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AI summary
The invention relates to a locking device (1) for a window, in particular a roof window, wherein the locking device (1) interacts with a locking block (3) for locking the window and has a slide (5) that can be coupled to an operating handle of the window and is mounted to be linearly displaceable along a displacement path. A gear mechanism (13) is provided which converts a linear movement of the slide (5) into a rotary movement of at least one locking element (18) rotatably mounted about a pivot axis, which, in a first rotational position, engages a locking pin (21) of the locking block (3) to lock the window and, in a second rotational position, releases it to open the window. The invention further relates to a locking arrangement (2) for a window.