Window Locking Device with Integrated Deflection Guide
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Solution Overview
Problem
Existing devices for opening, closing, and locking turn-tilt windows or doors require large installation spaces due to the size of the drive and deflection device, lack a hybrid drive for automatic to manual switching, and are not economical or easy to manufacture and install.
Innovation Solution
A device with a compact design featuring a motorized or manual drive system using a kink-resistant chain for force transmission, a locking pin mechanism, and a concealed arrangement within the window or door rebate space, allowing for both motorized and manual operation with a small footprint and reduced costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a separate deflection device is arranged in the housing next to the guideway of the chain, then the drive can transmit force to both the closure device and the locking device, but the installation space increases and the device size grows
Solution Approach 1:
The patent integrates the deflection device directly into the guideway structure, merging two previously separate components (guideway and deflection device) into a single integrated component. This eliminates the need for additional space for a separate deflection device while maintaining the capability to transmit force to both the closure device and locking device.
Solution Approach 2:
The guideway is designed to serve multiple functions: it guides the chain for closure device actuation and simultaneously provides the deflection path for locking device actuation. This multi-functional design allows one component to perform the work of what would traditionally require separate components, reducing overall device size.
2Reliability
If the housing and deflection device are lengthened to accommodate turn-tilt windows or doors, then the locking function can be achieved, but the device size and costs increase
Solution Approach 1:
The guideway is segmented into different functional sections: a first section for closure device actuation and a second section for locking device actuation. This segmentation allows each section to be optimized for its specific function while sharing the same housing space, avoiding the need to lengthen the entire housing for both functions.
Solution Approach 2:
The patent utilizes three-dimensional space within the housing by creating a complex guideway path that moves in multiple directions and planes. The guideway transitions from a linear path to a multi-dimensional path that deflects at specific angles, allowing the chain to reach both the closure device and locking device without increasing the overall housing length.
3Adaptability or versatility
If a hybrid drive system is implemented for switching between automatic and manual operation, then operational flexibility is improved, but device complexity increases
Solution Approach 1:
The chain serves as an intermediary force transmission element that works in both motorized and manual modes. The same chain that transmits motorized force can also be manually actuated, eliminating the need for separate mechanical systems for manual operation and reducing overall system complexity.
Solution Approach 2:
The drive system is designed with universal components that perform both motorized and manual functions. The guideway, chain, and coupling mechanisms are designed to accommodate both powered and manual actuation, allowing a single system to provide hybrid operation capabilities without requiring duplicate components for each mode.
Data Source
Figure 1~2
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Figure 7~11
AI summary
Device 1 for opening and/or closing and for locking a closed state of a locking device 2, for at least partially closing a room opening of a tilt and/or turn window 3 or a door with a sash 4 and a frame 5, wherein the device 1 has a drive 6 and a force transmission means 7 which transmits the drive force to the locking device 2 and which can be coupled to a locking device 8 by means of a locking pin 9 of the locking device 2, and wherein a driver 10 of the force transmission means 7 facing the locking device 2 can be deflected by a deflection device 11 from a first direction of movement 12 for closing the locking device 2 into a second direction of movement 13 for actuating the locking device 8 of the locking device 2,wherein the device 1 is arranged concealed in a rebate between the frame 5 and the sash 4 of the window 3 or the door and the driver 10, upon retraction of the force transmission means 7 into a housing 14 of the device 1, follows a circular arc section 15 of a guide track 16 of the force transmission means 7, wherein, upon entry of a guide member 17 articulated to the driver 10 into the circular arc section 15, the driver 10 is pivotable at an angle of almost 90° about the axis 18 of the locking pin 9 and, with further retraction of the guide member 17, the driver 10 thereby actuates the locking device 8 of the locking device 2 when the locking pin 9 continues to engage.