Adjustable Window Hinge With Yielding Insert For Precision Alignment
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Solution Overview
Problem
Existing adjustable hinges for window or door frames face issues with maintaining constant direct contact between components during 'inter-space adjustment', leading to inconsistent performance and requiring complex manual control, while also lacking visual structural continuity during adjustments.
Innovation Solution
The hinge incorporates an elastically yieldable insert element within the first bushing, which ensures constant contact with the cavity faces and provides a 'click' feedback for precise adjustments, along with telescopic collars for maintaining structural continuity across all adjustment positions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a guide bushing with clearance is used for inter-space adjustment, then the hinge allows adjustment along the direction parallel to the plane of the window or door frame and orthogonal to the rotation axis, but the construction tolerances prevent constant direct contact between the bushing and cavity sides, leading to inconsistent performance
Solution Approach 1:
The patent changes the physical state of the bushing material from rigid to elastomeric, allowing it to deform elastically and maintain constant contact with the cavity walls while still permitting adjustment movements. This material parameter change resolves the contradiction by enabling both adjustability and consistent contact.
Solution Approach 2:
The patent uses a composite structure combining a metal bushing body with an elastomeric insert material. This composite approach allows the rigid metal structure to provide the adjustment mechanism while the elastomeric material provides constant contact and compensates for tolerances, resolving the reliability issue.
2Adaptability or versatility
If traditional adjustment mechanisms are used, then the hinge provides adjustment functionality, but the structural appearance is disrupted during adjustments, lacking visual continuity
Solution Approach 1:
The elastomeric bushing acts as a flexible element that can deform during adjustment while maintaining the external shape and visual continuity of the hinge structure. The flexible material allows internal adjustment movements without disrupting the external structural appearance.
3Measurement precision
If precise adjustment control is implemented, then the relative position between wing bodies can be accurately controlled, but the mechanism becomes more complex and harder to operate
Solution Approach 1:
The elastomeric bushing provides self-adjusting properties where the material automatically deforms to maintain optimal contact and positioning during adjustment operations. This self-service characteristic eliminates the need for complex control mechanisms while maintaining precision.
Solution Approach 2:
The elastomeric material provides tactile feedback through its deformation characteristics, giving the operator immediate sensory information about the adjustment state and contact quality, enabling precise control through simple manual operation.
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
This design ensures consistent and easily controllable adjustments, providing instantaneous feedback and maintaining visual continuity, thus enhancing the operational simplicity and reliability of the hinge.
Implementation Method 1
an elastically yieldable insert element within the first bushing, which ensures constant contact with the cavity faces
Data Source
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AI summary
The present invention refers to an adjustable hinge (10) for window or door frames comprising at least one first wing body (11) fixable to the fixed frame of a window or door frame and at least one second wing body (12) fixable to the mobile frame of a window or door frame, or vice versa, which are mutually articulated in a rotating manner around a rotation axis (A) through a pin (13), first adjusting means (23) for adjusting the relative position of the first wing body (11) with respect to the second wing body (12) along a first adjustment direction (X) which is parallel to the plane of the window or door frame and orthogonal to the rotation axis (A), in which the first adjusting means (23) comprise a first bushing (26) which supports an end portion (13a) of the pin (13) and which is housed in a mobile manner inside a cavity (27) which is defined in one of the first wing body (11) and the second wing body (12) and which has two faces opposite one another and parallel to the first adjustment direction (X), in which, moreover, one of the two faces has a toothing (28) which extends parallel to the first adjustment direction (X) and with which a corresponding toothing engages (29) which is defined on one portion of the outer lateral surface of the first bushing (26), and in which the first bushing (26) is manoeuvrable in rotation from the outside and the rotation of the first bushing (26) and with it that of the pin (13) generate a displacement of sole translation along the first adjustment direction (X) between the first wing body (11) and the second wing body (12), and is characterised in that the first bushing (26) has a portion in contact with the other one of the two faces of the cavity (27), wherein the contact portion is yielding on the plane orthogonal to the rotation axis (A). Such contact portion is made up of an insert element (30) which is associated with the first bushing (26) and which has in the cross section an arched-crown-sector shape which partially embraces the first bushing (26) so that between it and the faced portion of the outer lateral surface of the first bushing (26) there is a free space (S).