Snap Hinge Damper Integration for Slowing Door Closure
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Solution Overview
Problem
Existing snap hinges with damping devices face challenges in maintaining standard dimensions while effectively damping the closing movement of furniture doors, often resulting in increased bulk and aesthetic issues due to visible dampers or increased assembly complexity.
Innovation Solution
A snap hinge design that integrates a damper device within the hinge arm, positioned under the top flat wall, alongside the elastic means, allowing for parallel arrangement to maintain compact dimensions and prevent the door from slamming shut during closure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a damper device is integrated into the hinge arm, then the damping effect is achieved, but the hinge arm dimensions increase
Solution Approach 1:
The damper device is nested within the existing hinge arm structure, with the damper body positioned inside the hinge arm and the piston rod extending along the longitudinal axis. This nesting approach allows the damper to be contained within the standard hinge arm dimensions without requiring external space or increasing overall length.
Solution Approach 2:
The damper is positioned in the transverse direction (width direction) of the hinge arm rather than extending the longitudinal length. The damper body is arranged side-by-side with the elastic means in the transverse plane, utilizing the width dimension to accommodate the damper without increasing the hinge arm length.
2Object-affected harmful factors
If a damper device is secured to the cabinet, then damping is achieved, but assembly complexity increases
Solution Approach 1:
The damper device is merged with the hinge arm assembly, forming an integrated unit. The damper body is secured to the hinge arm through the existing securing plate and screw connection points, combining the damping function with the hinge assembly rather than requiring separate mounting operations.
Solution Approach 2:
The hinge arm serves multiple functions: it provides the mechanical connection between door and cabinet, contains the elastic means for snap closure, and accommodates the damper device for damping. This multi-functionality eliminates the need for separate damper mounting operations.
3Reliability
If the hinge arm is shaped to secure the damper, then the damper is firmly attached, but manufacturing complexity increases
Solution Approach 1:
The damper securing function is segmented from the hinge arm structure. Instead of shaping the hinge arm itself, a separate damper body component is provided with its own securing features (mounting flanges or tabs) that attach to the hinge arm through existing connection points, simplifying manufacturing.
Solution Approach 2:
The damper body acts as an intermediary component between the damping mechanism and the hinge arm. It provides the interface for securing the damper to the hinge arm through standard screw connections, eliminating the need for complex hinge arm shaping.
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 solution achieves effective damping of the closing movement without increasing the hinge arm's length or height, maintaining standard dimensions and allowing for easy detachment of the hinge arm from the securing plate, while ensuring proper adjustment and aesthetic integrity.
Implementation Method 1
elastic means for ensuring the snap closure of the hinge, thereby preventing the doors from opening by themselves in an unwanted way
Implementation Method 2
the closing movement of the door is braked, i.e. slowed down, by the action of a damper, so as to prevent the door from slamming shut
Data Source
Figure 1~2
Figure 3a~3c
Figure 4~5
AI summary
A snap hinge (1) with a damper device, comprises a hinge arm (4) extended along a prevalent longitudinal direction (X-X) and a hinge cup (3) connected by means of first articulated connection means (11, 12, 13, 14, 15, 16) to change reversibly from a closed hinge configuration to an open hinge configuration, the hinge also comprises leaf springs (30) acting between the hinge cup and the hinge (3) to cause a snap closure of the hinge (1) and a damper device (2) to generate a braking action to slow down the approach movement between the hinge cup (3) and the hinge (4), advantageously both said leaf springs (30) and said damper device (2) are positioned below the hinge arm (4) arranged side by side in parallel with each other along said longitudinal direction (X-X) so as not to overlap each other in a plane perpendicular to said longitudinal sides (4b) of said hinge arm (4).