Circumferential Locking Profile for Inviolable Window Frames
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Solution Overview
Problem
Current systems for locking movable sash frames into stable basic frames in hinged opening systems for doors and windows are time-consuming, complex, and expensive, with a risk of invasion through mechanical stress, despite using multiple-point circumferential locking systems.
Innovation Solution
The design of the sash and basic frame profiles includes a groove system with a Π-shaped locking profile that rotates and penetrates circumferentially into the basic frame's groove, achieving a secure, inviolable lock using a minimal set of accessories, including a drive belt and lateral projections for motion transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple-point circumferential locking systems are used, then the locking strength and security are improved, but the device complexity and time consumption increase
Solution Approach 1:
The locking profile is divided into multiple segments along the circumferential direction, with each segment containing a locking element that can independently engage with the basic frame. This segmentation allows the locking action to be distributed around the perimeter, achieving comprehensive coverage without requiring a single complex locking mechanism at each point
Solution Approach 2:
Multiple locking elements distributed around the circumferential perimeter are merged into a single integrated locking profile that moves as one unit. The profile combines multiple locking functions (engagement at different points around the perimeter) into one cohesive component that operates simultaneously at all locking points
2Reliability
If multiple accessories are used for locking, then the locking reliability is improved, but the manufacturing cost and installation time increase
Solution Approach 1:
The locking profile serves multiple functions simultaneously: it provides circumferential locking engagement, transmits motion from the cremone, and integrates with both the sash and basic frame profiles. This multi-functionality eliminates the need for separate accessories for each function, reducing both component count and installation time
Solution Approach 2:
The locking profile is nested within the groove of the sash profile and simultaneously engages with the groove of the basic frame. The profile fits into the existing structural features of both frames, utilizing their geometric features rather than requiring additional mounting accessories
3Ease of operation
If traditional locking mechanisms are used, then the basic locking function is achieved, but the risk of invasion through mechanical stress remains
Solution Approach 1:
The locking action transitions from traditional point-contacts or surface-contacts to a three-dimensional circumferential engagement. The locking profile extends around the entire perimeter of the sash, creating a dimensional barrier that must be overcome to invade the lock, significantly increasing the difficulty of mechanical stress attacks
Data Source
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AI summary
By the invention it is possible for a hinged opening frames system (glazing and shutter), to be constructed, having a sash profile (1) with a groove (2) as shown in Figures 4 & 5 and a basic frame's profile (3) with a groove (4), where eventually the locking profile (5), which is initially placed into the groove (2) of the sash profile (1), being pushed out, enters the groove (4) of the basic frame's profile (3), so that the sash's (1) movable framework secures and literally embodies with the basic frame's (3) stable framework, in a way that makes the whole frame completely inviolable. The main motion's transmission accessory (9) is adjusted to the frame's cremone, which by being rotated, transmits motion to the drive belt (12), as shown in Figure 7, which moves the accessories (7), which push out the locking profiles (5), which in turn enter circumferentially into the groove (4) of the framework assembled by the basic frame's profile (3).