Rotary Fitting with Adjustable Support for Door Alignment
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Solution Overview
Problem
Conventional rotary fittings for door wings struggle to meet the highest functionality and precision requirements, especially in larger and more complex installations, where precise alignment and easy operation are crucial.
Innovation Solution
A rotary fitting design featuring a load-bearing frame part with an adjustable adjustment part, allowing for precise alignment of the axis of rotation in two Cartesian spatial directions, enabling smooth operation and homogeneous joint appearance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If conventional rotary fittings are used, then the structure is simple, but the manufacturing precision and alignment accuracy deteriorate
Solution Approach 1:
The rotary fitting is divided into multiple independent components: a frame part, an adjusting part with base body and insert part, a pivot bearing, and a rotatable fitting part. This segmentation allows each component to be manufactured and adjusted independently, achieving high alignment precision without requiring the entire assembly to be complex.
Solution Approach 2:
The adjusting part is designed to be dynamically adjustable relative to the frame part in multiple directions (parallel and perpendicular to the insertion direction). This dynamic adjustability enables precise alignment of the rotation axis while maintaining a relatively simple overall structure that can be adapted to different installation requirements.
2Ease of operation
If the pivot bearing is positioned far from the frame, then the ease of operation improves, but the device complexity increases
Solution Approach 1:
A support element acts as an intermediary component, projecting from the frame part and extending forward to position the pivot bearing far from the frame. This intermediary structure enables easy operation with large clearance for heavy door leaves while maintaining a clear separation between the frame and the rotation axis, avoiding direct complex integration.
3Adaptability or versatility
If multi-directional adjustment capability is added, then the adaptability improves, but the device complexity increases
Solution Approach 1:
The adjusting part employs a nested structure where the insert part is positively inserted into the base body. The insert part can be adjusted perpendicular to the insertion direction while the base body is adjustable parallel to the insertion direction. This nesting allows multi-directional adjustment capability while keeping the adjusting mechanism compact and avoiding excessive complexity through hierarchical organization of adjustment functions.
Data Source
Figure 1a
Figure 1b
Figure 2a~2b
AI summary
A pivot fitting for a door leaf with a supporting fitting part and a fitting part (18) rotatable about a pivot bearing (16) of the supporting fitting part, wherein it is proposed that the supporting fitting part comprises a frame part (1) and an adjusting part (2) mounted in the frame part (1), wherein the adjusting part (2) has a support (15) projecting from the frame part (1), at the free end of which the pivot bearing (16) is arranged, and the rotatable fitting part (18) is designed as a right-angled fitting part, which is articulated with a first leg to the pivot bearing (16) and whose second leg has a fastening section for fastening to the door leaf and is pivotable by 180°, wherein the frame part (1) is designed as a receiving pocket.into which the adjusting part (2) can be inserted in an insertion direction (R) and in which the adjusting part (2) is adjustable relative to the frame part (1) parallel to the insertion direction (R) and perpendicular to the insertion direction (R).