Window Frame Bolt Socket Bracket Moment of Force
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Solution Overview
Problem
Existing window frame bolt socket designs lack sufficient resistance to external breaking attempts, particularly in roof windows, as they do not effectively secure the bolt socket against forces applied from the outside.
Innovation Solution
The bolt socket is reinforced by a bracket that creates a moment of force when the window handle bolt is engaged, with the bracket's bearing surface positioned to increase the socket's depth and securement within the window frame, using a combination of metal brackets and plastic or wooden frame structures to enhance locking mechanisms.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a bracket is added to support the bolt socket, then the resistance to external breaking attempts is improved, but the device complexity increases
Solution Approach 1:
The bracket is pre-installed in the window frame before the bolt socket is mounted. The bracket creates a moment of force that automatically locks the bolt socket in position, preventing it from being pried out during break-in attempts. This preliminary structural preparation enhances security without requiring complex active mechanisms.
Solution Approach 2:
The bracket acts as an intermediary element between the window frame and the bolt socket. It transfers and distributes the forces applied to the bolt socket across a larger area of the window frame, preventing direct stress concentration that could lead to socket failure or frame damage.
2Strength
If the bracket bearing surface is positioned farther from the window sash, then the moment of force is increased and socket secement is improved, but the bracket design complexity increases
Solution Approach 1:
The bracket extends in the dimension perpendicular to the window sash plane, positioning its bearing surface farther from the sash. This dimensional extension creates a longer moment arm, increasing the locking moment of force without adding vertical complexity to the bracket structure.
Solution Approach 2:
The bracket is designed with asymmetric geometry, having different dimensions and features on opposite sides. One side extends farther from the window sash to provide the bearing surface for the moment of force, while the other side is optimized for mounting to the window frame. This asymmetric design achieves the required mechanical leverage with minimal material.
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
This design significantly increases the strength of the bolt socket, resulting in improved resistance to attempts to open the window from the outside, enhancing security and locking functionality.
Implementation Method 1
the window handle bolt pressure force and the window frame reaction force against the bearing surface of the bracket, together as a pair of forces, produce a moment of force causing that the bolt socket coincides with the handle bolt
Data Source
Figure 1
Figure 2
Figure 3~4
AI summary
The bolt socket (1, 6) on the side sunk in the window frame is supported with a bracket (5, 8), advantageously made of metal, its one working face –the face by the bolt (56, 83) adjoins the wall (16, 66) of the bolt recess (13, 66) in the place where on the other side of this wall the handle bolt rests against it, and the opposite working face -the bearing surface (57,84) is resting against the window frame in the place more distant from the window sash than the face by the bolt, so the pressure force of the handle bolt and the reaction force of the window frame against the bracket bearing surface together cause a moment of force leading to a deeper seating of the handle bolt in the bolt recess (13, 62) of the bolt socket.