Damped Hinge With Integrated Four-Bar Linkage
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Solution Overview
Problem
Existing hinges with damped closing for furniture compartments, such as those in caravans, campers, and boats, face issues with increased bulk and aesthetic impact due to damping elements, making installation complicated and visually unpleasing when the door is open.
Innovation Solution
A hinge design featuring a first and second four-bar linkage with a damping element that has one end articulated with a lever of the first four-bar linkage and the other end with a lever of the second four-bar linkage, allowing for effective damping without increasing bulk, and incorporating elastic compression means to support the door's weight and maintain the closed configuration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If damping elements are provided between elements of the four-bar linkage, then damping effect is achieved, but bulk increases and installation becomes complicated
Solution Approach 1:
The damping element is merged with the four-bar linkage structure by articulating its ends to levers within the linkage system. This integration allows the damping function to be achieved without adding separate, bulky damping components, as the damping mechanism becomes part of the existing structural framework.
Solution Approach 2:
The damping element is positioned to act along the rotational path of the levers in the four-bar linkage, utilizing the existing spatial arrangement and motion dimensions of the linkage rather than adding external damping structures. This dimensional integration reduces overall bulk while maintaining damping effectiveness.
2Reliability
If damping elements are provided in the hinge, then damping effect is achieved, but visual impact increases when door is open
Solution Approach 1:
By merging the damping element with the four-bar linkage levers, the damping component becomes visually integrated into the existing hinge structure. When the door is open, the damping element is positioned within the linkage mechanism rather than protruding externally, reducing its visual impact while maintaining its damping function.
3Volume of moving object
If damping element is articulated with levers of four-bar linkage, then bulk is reduced, but structural complexity increases
Solution Approach 1:
The damping element is segmented into two ends, each articulated to different levers of the four-bar linkage. This segmentation allows the damping mechanism to be distributed within the existing linkage structure rather than requiring a single bulky component, reducing overall volume while maintaining structural integrity.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The design achieves effective damping during closure without bulk increase, simplifies installation, and maintains an aesthetically pleasing appearance when the door is open, ensuring safe and efficient operation at a lower cost.
Implementation Method 1
the hinge being further provided with at least one damping element which acts for at least one portion of the transition from the open configuration to the closed configuration
Implementation Method 2
these hinges are usually provided with elastic compression means which cooperate with the elements of the first and/or second four-bar linkage
Data Source
AI summary
A hinge with damped closing, comprising a first four-bar linkage, which comprises a coupling element which can be associated with a fixed element, a first portion of a first lever and a third lever which are associated in an articulated manner with the coupling element and a first portion of a second lever that is interposed between the preceding ones and is articulated thereto; the hinge further comprises a second four-bar linkage and at least one damping element that has the first end associated in an articulated manner with at least one lever of the first four-bar linkage and the second end associated in an articulated manner with at least one lever of the second four-bar linkage.