Snap Hinge With Integrated Damping Element
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Solution Overview
Problem
Existing snap hinges with damping mechanisms for furniture doors, especially those hinged about horizontal axes, face issues such as violent closure, restricted access to cabinet interiors, and increased production costs due to additional installation steps, as well as inefficacy in counteracting both user thrust and door weight during closure.
Innovation Solution
A snap hinge with a damping element integrated between the second articulated quadrilateral and the fixing plate, featuring a cylindrical main body with a sliding stem and braking means, allowing controlled transition between open and closed configurations without limiting access or requiring additional installation steps, and capable of handling both user thrust and door weight.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a tube damper is used to slow door closure, then violent collision is prevented, but lateral access to cabinet interior is restricted
Solution Approach 1:
The damping function is extracted from a separate tube damper component and integrated into the hinge mechanism itself. The hinge now includes a damping element with a piston and damper fluid that provides controlled closure without requiring an external tube damper that would obstruct access to the cabinet interior.
Solution Approach 2:
The damping mechanism is merged with the hinge assembly. The hinge comprises a first articulated quadrilateral, a second articulated quadrilateral, and a damping element integrated between them, combining the functions of articulation and damping in a single compact unit that does not interfere with cabinet access.
2Object-affected harmful factors
If a damping device is installed on the internal surface of the cabinet to slow closure, then violent collision is prevented, but access to cabinet interior is restricted
Solution Approach 1:
The damping function is extracted from a separate device installed on the cabinet interior and integrated into the hinge mechanism itself. This eliminates the need for additional space-consuming components inside the cabinet that would obstruct access to stored items.
Solution Approach 2:
The damping mechanism is positioned in the hinge assembly rather than inside the cabinet volume. By relocating the damping function to the hinge mechanism, the cabinet interior volume is preserved and remains fully accessible for storing and retrieving objects.
3Object-affected harmful factors
If an additional damping device installation step is added, then damped closure is achieved, but production costs increase
Solution Approach 1:
The damping mechanism is merged with the hinge assembly, combining multiple functions (articulation and damping) into a single integrated component. This eliminates the need for separate damping device installation steps and reduces production complexity and costs.
Solution Approach 2:
The hinge assembly is designed to perform multiple functions: providing articulation for door movement and providing damped closure control. This multi-functionality reduces the total number of components and installation steps required, thereby reducing production costs.
4Ease of operation
If a damping element is added to counteract user thrust, then closure control is improved, but it cannot effectively counteract door weight in horizontal hinge applications
Solution Approach 1:
The damping mechanism uses adjustable damping parameters through the piston and damper fluid system to provide controllable resistance that can counteract both user thrust and door weight. The damping force can be adjusted by changing fluid viscosity or piston orifice size to match the specific weight and dimensions of the door.
Solution Approach 2:
The damping element provides a counteracting force through the piston and damper fluid that balances both the user's closing thrust and the door's weight. The spring element also contributes to counterbalancing the door weight, creating a system that effectively manages both forces during closure.
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 snap hinge provides reliable and safe damped closure without restricting access to the cabinet interior, simplifies installation, and reduces production costs by integrating the damping element within the hinge, effectively preventing violent collisions and maintaining optimal access in confined spaces.
Implementation Method 1
at least one damping element which is interposed between said second quadrilateral and said fixing plate for a damped transition from said open configuration to said closed configuration or vice versa
Implementation Method 2
braking means for a slowed transition from said compression position to said extension position
Implementation Method 3
said hinge is provided with elastic means for a stable arrangement of said hinge in the open and closed configurations
Data Source
Figure 1
Figure 2~3
Figure 4~5
AI summary
A snap hinge (1) with damped closure, comprising a first articulated quadrilateral (2) and a second articulated quadrilateral (3) which share a first lever (4) and a second lever (5) and are provided respectively with a plate (6) for coupling to a first element (101) and with a plate (7) for fixing to a second element (102), said hinge (1) being movable alternately between an open configuration and a closed configuration, wherein said plates (6, 7) have different arrangements with respect to each other, the first quadrilateral (2) comprising a second arm (18) which is articulated to the coupling plate (6) and to an end of the second lever (5), the second quadrilateral (3) comprising a first arm (9) which is articulated to the fixing plate (7) and to an end of the first lever (4), said hinge (1) also comprising at least one damping element (8) that is interposed between said second quadrilateral (3) and said fixing plate (7) for damped transition from said open configuration to said closed configuration and said damping element (8) comprises a cylindrical main body (10) in which a stem (11) can slide axially, characterized in that said main body (10) has a first end (10a) which is associated, so that it can rotate, with said fixing plate (7) and said stem (11) is provided with a second end (11a) that can move with respect to said first end (10a) and is associated, so that it can rotate, with said first arm (9), the position of the stem (11) with respect to the body (10) defining various positions of the damping element (8), which in particular can move between a compression position, in which said ends (10a, 11a) of the main body (10) and of the stem (11) are mutually closer and the hinge (1) is in the open configuration, and an extended position, in which said ends (10a, 11a) of the main body (10) and of the stem (11) are mutually spaced and the hinge (1) is in the closed configuration.