Flip-Up Cabinet Hinge With Dual Dampers to Prevent Door Drop
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Solution Overview
Problem
Flip-up door panels in cabinets can suddenly fall during operation, posing a risk of injury to users due to their weight and lack of stabilization mechanisms.
Innovation Solution
An anti-fall flip-up sliding mechanism comprising a hinge with a buffering device, including a first and second damper, and a sliding device that prevents sudden falling by using a combination of hydraulic or pneumatic cylinders and a meshed gear system to absorb movement, ensuring the door panel is safely flipped up and down.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a flip-up door panel is used to save space and facilitate use, then the cabinet functionality is improved, but the door panel can fall down suddenly causing injury
Solution Approach 1:
The patent applies beforehand cushioning by incorporating damping elements (viscoelastic dampers or hydraulic dampers) into the hinge mechanism before the door panel can fall. These dampers are pre-installed in the hinge connection between the door panel and cabinet body, providing automatic shock absorption and velocity limitation during the flipping operation, thereby preventing sudden falls and potential injuries.
2Stability of the object's composition
If the door panel is made heavy for stability, then the door panel remains stable when closed, but it falls down more suddenly and dangerously
Solution Approach 1:
The patent introduces an intermediary damping mechanism (hinge with integrated damper) between the heavy door panel and the cabinet body. This intermediary component acts as a mediator that allows the heavy door panel to maintain its stability when closed while simultaneously controlling its motion during flipping, limiting velocity and preventing sudden falls through the shock-absorbing properties of the damper.
3Device complexity
If no buffering device is used to simplify the mechanism, then the hinge structure is simple, but the door panel lacks protection against sudden falling
Solution Approach 1:
The patent merges the hinge function with the buffering function by integrating a damper element directly into the hinge mechanism. This combination creates a unified component that provides both the rotational connection needed for flip-up operation and the shock absorption needed to prevent sudden falls, thereby improving reliability without proportionally increasing device complexity.
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
Effectively prevents the door panel from sudden falling by providing a controlled and stable operation, enhancing user safety by absorbing movement and maintaining the door panel's position relative to the cabinet.
Implementation Method 1
The buffering device comprises a first damper connected between the first hinge plate and the second hinge plate, and a second damper mounted at the second hinge plate
Data Source
AI summary
An anti-fall flip-up sliding mechanism includes a hinge having a first hinge plate affixed to a cabinet and a second hinge plate pivotally connected the first hinge plate, a buffering device including a first damper connected between the first hinge plate and the second hinge plate and a second damper mounted at the second hinge plate, and a sliding device affixed to a door panel and slidably coupled to the second hinge plate and meshed with the second damper such that when the door panel is biased relative to the first hinge plate and received to the top side of the cabinet, the first damper and the second damper produce a buffering effect to avoid the door panel from sudden falling.