Vertical Damping Hinge Resolving Oblique Pressure Damage
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Solution Overview
Problem
Existing damping hinges face issues with damage to the damper piston due to oblique pressure angles, leading to reduced damping effect and shorter service life.
Innovation Solution
A damping hinge design featuring a damping mechanism with a fixed and movable pressure member, where the damper operates vertically and the pressure members interact via inclined surfaces to maintain vertical force application, minimizing oblique forces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional horizontal dampers are used in damping hinges, then the damping effect is achieved, but the pressure rods are exposed to oblique forces exceeding 3° which damages the damper piston and reduces service life
Solution Approach 1:
The patent reorients the damper from a horizontal arrangement to a vertical arrangement, changing the dimensional orientation of force application. The pressure rod is positioned vertically with its axis aligned with the vertical direction, so that the damping force is applied axially along the vertical axis rather than horizontally. This dimensional change ensures that the pressure rod only experiences axial compression forces during operation, eliminating the oblique lateral forces that caused damage in traditional horizontal configurations.
Solution Approach 2:
The patent introduces an intermediary mechanism involving a link or lever arm that converts the rotational motion of the hinge into vertical linear motion of the movable pressure member. This intermediary transformation ensures that the force is transmitted vertically to the damper's pressure rod, maintaining proper axial alignment and preventing oblique force application while still achieving the damping function.
2Reliability
If the damper is arranged horizontally to provide damping effect, then the damping function is achieved, but the pressure angle changes in real time causing damage to the damper piston
Solution Approach 1:
By reorienting the damper to a vertical arrangement, the patent maintains the damping function while changing the force transmission path from horizontal to vertical. The pressure rod's axial alignment with the vertical direction ensures that throughout the hinge's rotational range, the force remains applied along the axis, preventing the pressure angle variation that compromises piston integrity in horizontal configurations.
3Ease of operation
If the pressure rod is subjected to oblique forces from clamp plate rotation, then the damping mechanism operates, but the pressure angle exceeds 3° offset causing negative impact on damping effect
Solution Approach 1:
The vertical arrangement of the damper creates a force transmission path that is independent of the hinge's rotational position. The movable pressure member's vertical movement, driven by the hinge rotation through the link mechanism, ensures that the pressure rod always experiences force along its vertical axis, maintaining proper pressure angle alignment and consistent damping effect throughout the operational range.
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 enhances the damping effect and extends the service life of the damper by maintaining vertical force application, thus preventing damage from oblique forces.
Implementation Method 1
Damping hinges often employ piston-type dampers, such as hydraulic dampers
Implementation Method 2
A first surface of the movable pressure member is configured for abutting connection or engagement with a second surface on the other clamp plate to actuate movement of the movable pressure member in the vertical direction
Data Source
AI summary
Provided is a damping hinge for controlled closing of a door or gate. The damping hinge includes a first clamp plate configured to be mounted to a fixed supporting panel; a second clamp plate configured to be mounted to a panel of the door or gate, wherein the second clamp plate is connected with the first clamp plate for relative rotation about a hinge axis; and a damping mechanism arranged on one of the first clamp plate and the second clamp plate and including a damper arranged substantially parallel to the hinge axis and configured to retard or control relative rotation of the second clamp plate towards the first clamp plate during closing of the hinge. The damping mechanism may be arranged such that the damping mechanism is located outside of a plane of the respective panel and adjacent or next to an outer or facing surface of that panel.