Modular Pulley Assemblies for Extended Vertical Tracking
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Solution Overview
Problem
Existing vertical slider or dolly systems for camera and lighting equipment have limited functionality due to short vertical ranges of motion, restricting their ability to perform straight up and down vertical tracking movements effectively.
Innovation Solution
The development of sturdy and durable pulley system assemblies that allow for demountable engagement with modular structural support components, enabling the use of pulley and cable components to lift, support, and move loads vertically, with counterbalancing and rail-rolling modules for precise control and extended movement capabilities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of moving object
If traditional vertical slider or dolly systems are used, then the equipment structure is simple, but the vertical range of motion is limited
Solution Approach 1:
The system is divided into modular components including pulley assemblies, cable components, counterbalance assemblies, and support structures that can be independently configured and combined to achieve different vertical ranges of motion while maintaining manageable complexity through standardized interfaces
Solution Approach 2:
The pulley assemblies are integrated within modular support structures that can be nested or stacked vertically, allowing the system to achieve extended vertical ranges by combining multiple standardized modules rather than requiring a single complex structure
2Length of moving object
If pulley and cable components are added to extend vertical range, then the vertical range of motion is improved, but the system complexity increases
Solution Approach 1:
The pulley assemblies are designed with universal mounting interfaces and standardized cable attachment points that allow the same component to be used in various configurations and positions, reducing the need for multiple specialized parts and simplifying the overall system despite extended functionality
Solution Approach 2:
Counterbalance assemblies are integrated with the pulley system to offset the weight of equipment and cables, reducing the force required for vertical movement and enabling smoother operation of the extended range mechanism without proportionally increasing system complexity
3Measurement precision
If counterbalance assemblies are integrated, then the control precision is improved, but the device complexity increases
Solution Approach 1:
Counterbalance assemblies are configured to precisely offset the weight of equipment and cables, creating a near-neutral buoyancy effect that allows for fine positional control with minimal input force, thereby improving control precision while using simple mechanical counterweight mechanisms rather than complex control systems
Solution Approach 2:
The system incorporates cable tension sensors and position indicators that provide feedback on the state of the pulley assemblies and counterbalance mechanisms, allowing for precise control and adjustment while maintaining relatively simple mechanical structures through intelligent monitoring
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
Enables precise and controlled vertical movement of cameras, lights, and other equipment, overcoming the limitations of traditional systems by providing extended vertical ranges and stable, adjustable configurations for various applications.
Implementation Method 1
pulley and cable components to lift, support, and move loads vertically
Implementation Method 2
the weight of a load support assembly and supported load thereon may be counterbalanced by an opposing weighted subassembly
Data Source
AI summary
A counterbalanced vertical track assembly which may be configured with three types of pulley support assemblies are herein disclosed. The first type of pulley support assembly has a pair of opposed pulley modules having an elongate structural element interposed the two pulley modules which are attached to end plates at both ends of the elongate structural element. The second type of pulley support assembly has a pair of opposed pulley modules which include male end connectors for demountable engagement of the pulley modules with another module of the system with female ends. The third type of pulley support assembly has a pair of opposed pulley modules wherein the modules' pulley brackets are repositionable to varying angular orientations by alternating screw mount positions selected on mount components at opposite ends of an elongate structural element.