Viscous Spherical Joint for Camera Monopod Stability
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Solution Overview
Problem
Existing supports for optical or video/photographic apparatus, such as monopods, lack stability and precision in movement along all three axes, leading to vibrations and oscillations that negatively impact filming quality, especially during panoramic movements.
Innovation Solution
A compact and lightweight monopod design featuring a viscous spherical articulation system with a shell-shaped body and a spherical ball, where a viscous fluid is interposed between the ball and the shell to dampen vibrations and provide controlled friction, allowing smooth movement along all three axes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Weight of stationary object
If a monopod with telescopic rod and base is used, then the support is compact, light and easy to transport, but it lacks stability and is subject to considerable vibrations and oscillations
Solution Approach 1:
A viscous fluid is introduced as an intermediary substance between the spherical ball and the shell-shaped body to dampen vibrations and oscillations. The viscous fluid creates resistance to rapid movements while allowing controlled motion, thereby stabilizing the monopod without adding significant weight or complexity
Solution Approach 2:
The articulation system uses a spherical ball that can rotate freely within the shell-shaped body, changing the mechanical parameters of the joint from fixed-axis rotation to multi-axis spherical rotation. This provides smoother movement and better stability across all three axes while maintaining the monopod's lightweight structure
2Manufacturing precision
If cylindrical articulations with viscous fluid are added to regulate movement along tilt and level axes, then movement regulation improves, but the weight and dimensions of the monopod increase considerably
Solution Approach 1:
The invention merges the articulation functions for all three axes (panoramic, tilt, and level) into a single spherical ball mechanism. Instead of using separate cylindrical articulations for each axis, the spherical ball provides integrated multi-axis rotation with viscous fluid damping, reducing the overall weight and complexity while maintaining precision
Solution Approach 2:
The spherical ball articulation system serves multiple functions simultaneously: it enables rotation about the panoramic axis, provides tilt adjustment, enables level adjustment, and dampens vibrations across all axes. This multi-functional design eliminates the need for separate mechanisms for each axis, keeping the monopod lightweight
3Device complexity
If traditional monopod articulation is used, then the structure remains simple, but the steadying of the video-photographic apparatus lacks precision along all three axes
Solution Approach 1:
The viscous fluid acts as a mediator between the spherical ball and the shell-shaped body, providing damping that enhances steadying precision. The fluid resists rapid movements and oscillations while allowing smooth, controlled motion, thereby improving precision without requiring complex mechanical damping mechanisms
Solution Approach 2:
The use of a spherical ball instead of traditional cylindrical or hinge-based articulations provides curvature-based movement freedom in all directions. The spherical geometry naturally enables smooth rotation about multiple axes simultaneously, improving steadying precision while keeping the mechanism relatively simple
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 enhances the stability and smoothness of video/photographic apparatus movement along all axes, improving filming quality without increasing the monopod's weight or dimensions, enabling high-quality filming with reduced shakes and vibrations.
Implementation Method 1
a viscous fluid is interposed between the ball and the shell to dampen vibrations and provide controlled friction
Data Source
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AI summary
Orientable support (1) for video-photographic apparatus, comprising an articulation device (4) with a first (5) and a second articulation member (6) provided with respective attachment means for being attached respectively to a supporting member (2, 20) of said support (1) and to a video-photographic apparatus, or vice versa, and reciprocally movable in order to orient said video-photographic apparatus with respect to said supporting member (20), said first articulation member comprising an internally hollow shell-shaped body (5) defining a housing cavity (10) for said second articulation member (6), said second articulation member comprising a spherical ball (6) capable of sliding in said housing cavity (10), said ball (6) and said housing cavity (10) being shaped in such a way that a gap (11) is formed therebetween, said gap containing a viscous fluid (V) suitable for regulating the rotations of said ball (6) in said housing cavity (10).