Internal 180-Degree Hinge for Serial Cabinet Arrangement
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Solution Overview
Problem
Conventional concealed hinges for cabinets have complex constructions with numerous components, leading to intricate assembly processes and increased complexity.
Innovation Solution
A simplified internal 180-degree hinge design featuring a hinge bracket that can be easily attached to a cabinet body using a retaining pin and interlocking guides, with rockers that provide the necessary lifting function, allowing for a pre-assembled hinge to be quickly fixed or removed from the cabinet body.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a sliding mechanism with housing and sliding part is used to allow the hinge bracket to be supported by the cabinet body, then the door can lift off the cabinet body when opened, but the construction becomes complex with numerous components
Solution Approach 1:
The patent extracts the essential function of supporting the hinge bracket from the complex sliding mechanism housing and sliding part structure. Instead of using a housing with a sliding part guided within it, the invention directly connects the hinge bracket to the cabinet body through simplified support elements, removing unnecessary components while maintaining the door lifting capability.
Solution Approach 2:
The patent merges the support function and the hinge mounting function into a single integrated structure. The hinge bracket is directly supported by and connected to the cabinet body through combined support and connection elements, eliminating the need for separate housing and sliding mechanism components that were previously required to achieve the same function.
2Reliability
If numerous components are provided in the hinge construction, then the door lifting and concealed installation functions are achieved, but the assembly process becomes intricate and time-consuming
Solution Approach 1:
The patent segments the hinge system into modular components: a hinge bracket that attaches to the door, support elements that connect to the cabinet body, and connecting elements that join them. This segmentation allows each component to be independently manufactured and then quickly assembled, reducing overall assembly time while maintaining the concealed installation capability.
Solution Approach 2:
The patent employs pre-assembled units where the hinge bracket is pre-attached to the door leaf, and the support elements are pre-configured to connect to the cabinet body. This preliminary preparation of components allows for rapid final assembly on-site, significantly improving assembly productivity while ensuring proper alignment and concealed installation.
Data Source
AI summary
The invention relates to an internal 180-degree hinge for a door that is retained on a cabinet body in such a way that the door can be pivoted open, comprising a hinge support fastened to the cabinet body and a hinge bracket fastened to the door, the hinge support and the hinge bracket being retained on each other by means of a hinge axis and the hinge bracket fastened to the door being movable relative to the hinge support fastened to the cabinet body during the rotational motion of the hinge bracket about the hinge axis for an arrangement of cabinets in a row having a door leaf which in the open position of the door is aligned parallel to the closed door of an adjacent cabinet. Said hinge is characterized in that the hinge support (19) and the hinge bracket (17) are connected to each other by means of at least two rockers (21, 22), which are coupled to each other by means of the hinge axis (23) passing through the rockers and which are rotatably arranged about the hinge axis (23) in a scissor-like manner, the one end of the outer ends of the one rocker (22) lying opposite each other with respect to the hinge axis (23) being connected to the hinge support (19) by means of a rigidly arranged shaft (27) and the other end being retained on the hinge bracket (17) by means of a shaft (28) that can be moved in a track (29) formed in the hinge bracket (17), and the one end of the other rocker (21) being connected to the hinge bracket (17) by means of a rigidly arranged shaft (24) and the other end being retained on the hinge support (19) by means of a shaft (25) that can be moved in a track (26) formed in the hinge support (19).