Tilt Turn Window Hinge with Automatic Eccentric Reset
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Solution Overview
Problem
Existing fitting arrangements for rotatable and tiltable sashes or doors face challenges such as difficult access to locking mechanisms due to masonry constraints and restricted installation space, which limits their universal applicability and ease of use.
Innovation Solution
A scissor faceplate with an adjustable bracket and an eccentric mechanism supported by spring elements, allowing for controlled movement and realignment without occupying rebate space, enabling easy adjustment and resetting of the sash relative to the frame.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If locking elements are provided between movable hinge parts to fix the hinge parts in position, then the sash can be secured relative to the frame, but the locking elements can only be reset manually which reduces ease of operation
Solution Approach 1:
The patent implements self-service by enabling automatic resetting of the locking elements through the spring mechanism. When the sash is moved to a new position, the spring automatically pushes the locking elements back to their initial state, eliminating the need for manual resetting and making the system self-regulating
Solution Approach 2:
The patent applies dynamics by using a spring mechanism that allows the locking elements to move dynamically between locked and unlocked states based on sash position changes. The spring provides continuous force to maintain the locking elements in their appropriate states during sash movement
2Adaptability or versatility
If coupling means are arranged on the scissor link to determine the position of the scissor arm, then the deployment device can be adjusted, but the arrangement restricts available installation space due to the arrangement on the scissor link
Solution Approach 1:
The patent extracts the coupling means from the scissor link and relocates them to the scissor arm. This extraction allows the scissor link to have a simpler, more compact design while maintaining the same adjustment capability, thereby reducing the overall installation space required
Solution Approach 2:
The patent changes the spatial arrangement by moving the coupling means from one component (scissor link) to another component (scissor arm) in a different dimensional location. This repositioning optimizes the spatial distribution of components and reduces interference with the rebate area
3Reliability
If the scissor link supports the scissor arm in a rotary opening position, then the deployment device can control the scissor arm position, but the coupling means arrangement does not allow the deployment device to be used on the right and left
Solution Approach 1:
The patent achieves universality by relocating the coupling means to the scissor arm in a symmetric position that allows the deployment device to function equally well on both right and left sides. The scissor arm's coupling means can accommodate bidirectional rotation and positioning, making the device universally applicable regardless of installation orientation
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
The solution ensures universal applicability and easy operation by allowing the sash to be aligned and reset without manual intervention, maintaining optimal alignment and preventing jamming, while maximizing the use of available space.
Implementation Method 1
the eccentric being subjected to a spreading force by a spring element
Data Source
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AI summary
The invention relates to a fitting assembly for a window, a door, or the like, having an opening device (19), which comprises an opening arm (22) and a link (27) pivotably connected to the opening arm (22), wherein the link (27) can be coupled to a wing (5) of the window or of the door at a scissor plate (21) at a first coupling point, and wherein the opening arm (22), at a second coupling device (50), can be coupled to a scissor bearing, which can be fastened to the main frame of the window or of the door, in order to pivotably support the wing (5) on the main frame (2), wherein two parts of the supporting structure, which comprises the opening device (19) and the scissor bearing, can be fixed relative to each other in a variable manner in different positions in order to adjust the effective length (49) of the opening device (19), and wherein the two parts are connected to each other by means of at least one adjustable coupling element (32), which is designed, during the closing of the wing (5), to be automatically adjusted in such a way that an incorrect position of the wing (5) is corrected by changing the effective length (49) of the opening device (19). In order to achieve simple restoring of the effective length (49), which ideally occurs cyclically in normal use of the window or the door and which enables universal use of the fitting assembly, one of said parts according to the invention is the scissor plate (21) and the other of said parts is the link (27), wherein a plate (30) that can be adjusted relative to the scissor plate (21) is provided between the scissor plate (21) and the link (27), which plate has the pivot bearing of the link (27) and supports an eccentric (32), which acts between the scissor plate (21) and the pivot bearing, wherein force is applied to the eccentric (32) in a spreading manner by a first spring element (41).