Roof Window Locking Device Tool-Free Assembly
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Solution Overview
Problem
Existing roof windows have complex and labor-intensive assembly processes for their locking devices, which hinder efficient installation and maintenance.
Innovation Solution
A roof window design featuring a locking device with a keyhole-shaped retaining recess and a push rod system that allows tool-free assembly and operation, where the actuating element is held captive within the recess and connected to a handle via a lever arrangement, enabling easy displacement and secure locking without the need for tools.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If traditional locking devices are used, then reliable locking is achieved, but assembly becomes complex and labor-intensive
Solution Approach 1:
The locking device is divided into separate modular components: a locking element with retaining recesses, a locking lever, and a locking block. These segments can be assembled independently and then combined, simplifying the overall assembly process while maintaining reliable locking function.
Solution Approach 2:
The locking lever is inserted into the locking element, and the locking block is positioned within the locking device structure. This nested arrangement allows compact assembly without complex fastening operations, reducing labor intensity while ensuring secure engagement.
2Ease of operation
If the locking device is made simpler for easier assembly, then installation effort is reduced, but secure locking may be compromised
Solution Approach 1:
The locking lever features self-latching retaining recesses that automatically secure the locking block in place through geometric interlocking. This self-service mechanism eliminates the need for additional fastening operations or complex adjustment procedures, reducing installation effort while ensuring reliable and secure locking engagement.
Data Source
AI summary
The invention relates to a roof window (1), in particular a residential roof window, with a frame (2), a sash frame (3) and a locking device (24) which has at least one locking bolt (25) which in a locking position secures the sash frame (3) relative to the frame (2) in a closed position and in a release position releases it to open the roof window (1).The invention provides that the locking bolt (25) is operatively connected to an actuating element (35) that can be displaced within an actuating range. The actuating element (35) can be inserted into a keyhole-shaped retaining recess (36) of the locking device (24) in an actuating element mounting position located outside the actuating range and is captive in the retaining recess (36) within the actuating range. A push rod (50) is attached to the actuating element (35), the push rod having a push rod mounting element (57). The push rod mounting element (57) can be inserted into a push rod receptacle (49) of the actuating element (35) in a push rod mounting angle position and is held in the push rod receptacle (49) in a push rod operating angle position. The invention further relates to a method for mounting a roof window (1).