Eccentric Pivot Hinge Insert for Door Alignment
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Solution Overview
Problem
Existing door devices face challenges in accurate alignment due to the weight of large door leaves causing significant forces on hinges and potential misalignment during attachment, leading to deviations in the orientation of the door leaf.
Innovation Solution
A pivot hinge with a recessed opening and insert design that allows for precise orientation adjustment without repositioning the attachment means, combined with a magnetic assembly for alignment and a sealing mechanism to ensure correct positioning and resistance to lateral forces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the hinge foot is attached to the hardening surrounding the door opening, then the door leaf is suspended and rotatable, but misalignment may occur during attachment leading to deviation in door leaf orientation
Solution Approach 1:
The patent introduces an insert as an intermediary component between the wall attachment means and the hinge foot. This insert with its eccentric central opening acts as a mediator that allows independent adjustment of the hinge foot orientation relative to the attachment means position, thereby decoupling the attachment precision from the final alignment precision
Solution Approach 2:
The insert is designed to be rotatable within the recessed opening, transforming a static attachment system into a dynamic one. This rotational freedom allows the hinge foot to be oriented at different angles relative to the door opening width direction, enabling post-attachment alignment adjustments without repositioning the attachment means
2Adaptability or versatility
If the hinge foot makes a small angle with the door opening width direction, then the door leaf orientation is adjusted, but small alignment deviations at the hinge foot result in large deviations at the door leaf end
Solution Approach 1:
The insert serves as a mediator that absorbs and compensates for alignment sensitivity issues. By providing an eccentric central opening that can be rotated independently, it allows the hinge foot orientation to be adjusted without being constrained by the attachment means position, thereby reducing the amplification of small alignment deviations
Solution Approach 2:
The eccentric design of the central opening creates an asymmetric relationship between the insert rotation and the hinge foot orientation. This asymmetry allows for fine-tuned orientation adjustments of the door leaf while maintaining a stable attachment position, effectively decoupling the sensitivity of alignment from the attachment precision
3Strength
If wall attachment means are used to attach the hinge foot, then the door leaf is securely mounted, but lateral forces may cause misalignment
Solution Approach 1:
The patent segments the attachment system into three distinct components: wall attachment means for securing the hinge foot to the structure, an insert for orientation adjustment, and the hinge foot for suspending the door leaf. This segmentation allows each component to perform its specific function optimally - the attachment means provides strength while the insert maintains alignment stability
Solution Approach 2:
The insert acts as a mediator between the rigid wall attachment means and the hinge foot. It absorbs lateral forces through its rotational capability and eccentric design, preventing these forces from directly causing misalignment of the door leaf while maintaining secure mounting
Data Source
AI summary
The present invention relates to a door device for closing a door opening between two rooms of a building. The door device comprises a door leaf and a pivot hinge for pivotably suspending the door leaf in the door opening. The pivot hinge comprises a hinge foot which is attached to a hardening surrounding the door opening by means of wall attachment means. The pivot hinge furthermore comprises, for each wall attachment means, an insert with at least two pairs of parallel faces and a central opening which is eccentric with respect to the central axis, so that the orientation of the insert can influence the orientation of the door leaf in the closed position.