Hinge Device Orthogonal Damper Positioning
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The existing hinge device design, where the shaft member and linear damper are coaxially positioned, results in a large vertical size, which limits the effectiveness of the damper's pressing stroke and dumping function.
Innovation Solution
The linear damper is positioned orthogonally to the shaft member, with a first and second cam part mechanism that allows for longer compression strokes and adjustable damper function, preventing upward flapping and ensuring stable damper action.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the linear damper is positioned coaxially to the shaft member, then the structure is simplified, but the vertical size becomes large and the pressing stroke is insufficient
Solution Approach 1:
The linear damper is repositioned from a coaxial arrangement (along the vertical shaft axis) to an orthogonal arrangement (perpendicular to the shaft axis). This dimensional change allows the damper to be positioned apart from the shaft member while still functioning effectively, reducing the vertical size without compromising the pressing stroke length
2Length of stationary object
If the vertical size is reduced, then the compactness improves, but the pressing stroke of the linear damper becomes short and the dumping function deteriorates
Solution Approach 1:
By positioning the linear damper orthogonally to the shaft member and apart from it, the damper achieves sufficient pressing stroke in a horizontal direction rather than vertical direction. This allows the vertical size to be reduced while maintaining the damper's effectiveness in dumping rotational force
Solution Approach 2:
The cam mechanism acts as an intermediary that converts the orthogonal motion of the linear damper into the appropriate rotational damping action. The cam parts translate the linear damper's compression stroke into effective resistance against the rotational force, ensuring reliable dumping function despite the non-coaxial positioning
3Length of stationary object
If the linear damper is positioned apart from the shaft member orthogonally, then the vertical size is reduced, but the positioning complexity increases
Solution Approach 1:
The cam mechanism serves as an intermediary that simplifies the overall positioning requirements. By using the cam parts to bridge the orthogonal positioning between the linear damper and the shaft member, the system achieves compact vertical dimensions without requiring complex direct alignment mechanisms
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
This configuration maintains an excellent dumping function without increasing the hinge device's size, allowing for sufficient damper strokes and adjustable compression, effectively reducing rotational force and impact during door closure.
Implementation Method 1
accompanied with a cam action of the first cam part and the second cam part, the linear damper is pressed and shortened
Implementation Method 2
a damper mechanism reducing the rotational force of the second object to the one direction
Data Source
AI summary
A hinge device 1 comprises a damper hinge 2 and a gravity hinge 3. The gravity hinge 3 comprises a rotational force imparting mechanism 70 for converting gravity of the door 6 to rotational force to a closing direction when the door 6 rotates to the closing direction. The damper hinge 2 comprises a damper mechanism 30 for reducing the rotational force to the closing direction of the door 6. The damper mechanism 30 includes a linear damper 31 disposed to the first hinge member 10 and a first cam member 32 and includes a second cam member 35 disposed to the second hinge member 20. The linear damper 31 is positioned far from the shaft member 40 in an orthogonal direction to a shaft line of the shaft member 40 and is positioned along the shaft member 40. When the door 6 rotates to the closing direction and goes down, the linear damper 31 is shortened along with a cam action of the first cam member 32 and the second cam member 35.