Concealed Door Hinge with Segmented Cover for Flush Fit
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Solution Overview
Problem
Existing door hinges that are concealed in door frames often require large components and adequate space, leading to a less than optimal aesthetic appearance due to visible gaps and inconsistencies in reveal sections.
Innovation Solution
A door arrangement with a concealed hinge design that includes a frame part inserted into a reveal with a mirror section and a step, using a cover part with adjustable or fixed sections to match the reveal dimensions, ensuring a flush fit and aesthetic concealment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If a concealed hinge design is used, then the aesthetic appearance is improved, but the component size and space requirements increase
Solution Approach 1:
The cover part is divided into multiple sections (first cover section and second cover section) that correspond to different reveal sections. This segmentation allows each cover section to be independently sized and positioned to match the specific geometry of the reveal, achieving a flush fit without requiring an excessively large single-piece cover component.
Solution Approach 2:
The frame part is inserted laterally into the reveal of the door frame, with the cover part then arranged on the frame part. This nested arrangement allows the hinge components to be concealed within the door frame structure, improving aesthetic appearance while minimizing the overall volume occupied by the hinge assembly.
2Shape
If the frame part is inserted into the reveal, then the hinge is concealed, but visible gaps and inconsistencies appear in the reveal sections
Solution Approach 1:
The cover part is designed with different cover sections having different local properties - the first cover section corresponds to the first reveal section and the second cover section corresponds to the second reveal section. This local quality approach allows each section to be optimized for its specific position, ensuring proper alignment and flush fit with the corresponding reveal sections while maintaining overall concealment.
Solution Approach 2:
The cover part is designed to be adjustable along the first horizontal direction, allowing dynamic adaptation to variations in reveal dimensions. This adjustability compensates for manufacturing tolerances and ensures a precise flush fit between the cover sections and the reveal sections, eliminating visible gaps.
3Ease of manufacture
If a fixed cover plate design is used, then the manufacturing is simplified, but the adaptability to different reveal heights and widths is reduced
Solution Approach 1:
The cover part incorporates adjustment means that allow it to be dynamically repositioned along the first horizontal direction to adapt to different reveal dimensions. This dynamic capability is achieved through guides (such as dovetail guides) that provide controlled movement while maintaining proper alignment, enabling the same cover part design to accommodate various reveal heights and widths.
Solution Approach 2:
The cover part is designed with universal adaptability through its adjustment mechanism, allowing a single cover part design to serve multiple reveal configurations. The combination of guide-based positioning and adjustment means enables the cover part to universally fit different door frame reveals while maintaining a flush appearance, eliminating the need for multiple specialized cover plate designs.
Data Source
Figure 1
Figure 2
Figure 3A
AI summary
The invention relates to a door assembly comprising a door frame (1), a door leaf (2), and at least one hinge (3) comprising a frame part (4) and a leaf part (5), wherein the door frame (1), in the closed position of the door leaf (2), has a mirror section (6) aligned parallel to the door leaf (2) and a lateral reveal (7) extending perpendicular to it and adjoining the door leaf (2), wherein the reveal (7) has, starting from the mirror section (6), a first reveal section (8) and a second reveal section (10) adjoining it via a step (9), and wherein the frame part (4) is inserted into an opening (11) of the reveal (7), which extends from the first reveal section (8) to the second reveal section (10), and a separate cover part (12) provided with a step is arranged on the frame part (4).wherein a first cover section (13) of the cover part (12) is flush with the first reveal section (8) and a second cover section (14) is flush with the second reveal section (10).