Cold Frame Window Fixing with Locking Groove
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Solution Overview
Problem
Existing window fixation systems for cold frames are cumbersome, unstable, or structurally complex, making it difficult to precisely adjust and secure the windows on uneven ground, and they can become damaged or dirty when unhinged.
Innovation Solution
A window fixation system featuring a locking groove that allows the window to be partially inserted along the pivot axis, providing a form-fitting fixation in an open position, with adjustable latching grooves that match the window's thickness for stability and adjustable angles for variable ventilation, and a quarter-circle or semicircle design for space efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If conventional unhinged windows are used, then the window can be easily removed for access, but the window becomes dirty or damaged when lying around
Solution Approach 1:
The window is equipped with a fixing device that allows it to be secured in a predefined open position before complete removal is needed. This preliminary securing action prevents the window from lying around unprotected, while still allowing easy access when needed by simply releasing the fixing mechanism.
2Manufacturing precision
If the ground is made level to enable precise hinge alignment, then the window can be properly aligned, but the installation becomes more time-consuming and difficult on typical garden terrain
Solution Approach 1:
The fixing device incorporates adjustable elements that allow the attachment points to be repositioned along the window and frame members. This adjustability compensates for uneven ground and imperfect alignment without requiring precise initial positioning or extensive ground preparation.
3Reliability
If a long rod is used to fix the window in open position, then the window can be securely held open, but the device becomes unwieldy and bulky
Solution Approach 1:
The fixing device is divided into separate components: a mounting part attached to the frame, a fixing part attached to the window, and a connecting element. This segmentation allows each component to be compact and simple, avoiding the need for a single long bulky rod while still providing secure positioning when assembled.
4Device complexity
If rope fixings are used to hold the open window, then the device is simple, but the fixing becomes too unstable
Solution Approach 1:
The connecting element of the fixing device features a curved or angled geometry that provides mechanical advantage and stable positioning. This curved design creates a self-locking effect that maintains window position reliably, unlike straight rope fixings that can slip or become unstable.
Data Source
Figure 1~2
Figure 3~4b
AI summary
The invention relates to a window fixing (1) for a cold frame, wherein the cold frame comprises a frame (4) formed from frame posts (2) and walls (3) and at least one window (5) which, in a closed position, rests substantially on the frame (4), and the window (5) can be moved into at least one open position by pivoting it about an axis (6), wherein the window (5) is displaceable along the axis (6) and a recess, preferably a locking groove (7), is provided for at least partially inserting and positively locking the window (5) in the open position. The invention further relates to a cold frame with the window fixing (1) according to the invention.