Hinge Rebate Adjustment via Bearing Disk Guidance
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Solution Overview
Problem
Existing hinge arrangements for doors and windows face challenges in achieving precise and simple rebate air adjustments, often resulting in imprecise alignment due to tilting of the sash relative to the frame during adjustment.
Innovation Solution
The introduction of a bearing disk connected to the adjusting screw, which is housed in a disk receptacle within the wing hinge, provides additional guidance and minimizes tilting by allowing rotational mobility without excessive friction, combined with a bearing sleeve and a thread-free section on the screw, ensuring precise rebate clearance adjustment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a conventional adjusting screw is used for rebate air adjustment, then the adjustment mechanism is simple, but the sash tilts relative to the frame resulting in imprecise alignment
Solution Approach 1:
A bearing disk is introduced as an intermediary component between the adjusting screw and the sash hinge. The bearing disk receives the rotational adjustment force from the screw and converts it into precise linear movement of the sash, while its large diameter and bearing points prevent tilting. This mediator enables high precision alignment without requiring the adjusting screw itself to directly control the sash position.
Solution Approach 2:
The bearing disk adds a rotational dimension to the adjustment mechanism. By rotating the large-diameter bearing disk, the adjustment is achieved through circular motion that translates to precise linear displacement of the sash. This dimensional change from direct linear adjustment to rotational adjustment provides better control and eliminates tilting issues.
2Stability of the object's composition
If the bearing disk diameter is increased to prevent tilting, then tilting is avoided, but the device complexity increases
Solution Approach 1:
The bearing disk is designed with its center positioned at the optimal pivot point of the sash hinge, creating an equipotential position where rotational adjustment does not create uneven forces or tilting moments. This strategic positioning ensures that the large diameter bearing disk provides maximum stability while minimizing structural complexity, as the balanced position eliminates the need for additional stabilizing components.
Data Source
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AI summary
The invention relates to a hinge assembly (1) for doors, windows, or the like, comprising a frame hinge (2) for frame-side attachment, a sash hinge (6) for sash-side attachment, and a sash-side rebate adjustment device (8). According to the invention, the rebate adjustment device (8) has an adjusting screw for rebate adjustment, the screw having a screw head (10) and attached to a bearing disc (11), and the bearing disc (11) is arranged in a disc receptacle (14) of the sash hinge (6), while the part of the screw head (10) adjoining the bearing disc (11) is located outside the disc receptacle.