Theatrical Load Apparatus with Compensator Rail System
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing theatrical performance personnel transportation systems require multiple tracks and complex equipment, making them unsafe, cumbersome, and costly, with limited control over load movement and height maintenance, especially in confined spaces.
Innovation Solution
A single-rail apparatus with two travelling carriages and a compensator system using pulleys, where the movement of one carriage affects the other, allowing for precise control and constant height maintenance, reducing equipment requirements and enabling quiet operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple tracks and complex equipment are used for personnel transportation, then the system can provide controlled movement and height maintenance, but the device complexity and equipment requirements increase
Solution Approach 1:
The patent combines two separate track systems into a single shared rail guide that supports both the first carriage (for load transport) and the second carriage (for height compensation). This merging reduces the number of tracks from two to one, simplifying the overall device structure while maintaining the functional separation needed for controlled movement and constant height maintenance.
Solution Approach 2:
The single rail guide serves multiple functions: it guides the first carriage for horizontal load transport, guides the second carriage for height compensation, and provides a shared structural support for both carriages. This multi-functionality reduces equipment requirements while maintaining reliable control over both position and height.
2Manufacturing precision
If two tracks are mounted one above the other with carriages moving in opposite directions, then constant height can be maintained, but the device complexity and space requirements increase
Solution Approach 1:
Instead of mounting two tracks vertically one above the other, the patent merges them into a single horizontal rail guide. Both carriages travel along this shared rail in the same direction, eliminating the need for vertical stacking and complex overhead mounting while achieving the same height compensation function through the pulley system.
Solution Approach 2:
The patent inverts the traditional arrangement by having both carriages move in the same direction along a single rail, rather than moving in opposite directions on separate tracks. The height compensation is achieved not by opposite movement on vertical tracks, but by the mechanical advantage of the pulley system where one carriage's movement automatically compensates for the other's position changes.
3Adaptability or versatility
If traditional personnel transportation systems are used, then performers can be transported, but the equipment is cumbersome and requires significant space
Solution Approach 1:
The patent merges the transport function and height compensation function into a single integrated system using one rail guide instead of two separate tracks. This consolidation reduces the spatial footprint of the equipment, making it suitable for confined theatrical spaces while maintaining full transportation capability for performers and scenery.
Solution Approach 2:
The system uses flexible cables and pulleys instead of rigid structural frameworks, allowing the equipment to be compact and adaptable to confined spaces. The thin cable-based compensator system replaces bulky mechanical structures, enabling deployment in areas with limited space while maintaining transportation versatility.
4Ease of operation
If complex equipment is used for load transportation, then controlled movement is achieved, but operational costs and maintenance requirements increase
Solution Approach 1:
The patent combines the functions of load transport and height compensation into a single integrated system, reducing the total amount of equipment needed. This merger lowers manufacturing costs and simplifies maintenance requirements while preserving fine control over movement through the coordinated action of the two carriages on the shared rail.
Solution Approach 2:
The system uses the movement of one carriage to automatically drive the other carriage through the pulley system, eliminating the need for separate motors or actuators for each carriage. This self-service mechanism reduces equipment costs and simplifies operation, as the control system only needs to manage one drive mechanism while the other carriage is automatically positioned.
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 apparatus provides safe, efficient, and flexible load transportation with reduced equipment needs, maintaining constant height and allowing for precise movement in three dimensions, suitable for confined spaces and adverse conditions, while minimizing operational forces and costs.
Implementation Method 1
The guide means suitably comprises a series of pulleys
Implementation Method 2
the first line makes a greater number of passes from the second carriage to the head block than it makes from the tail block to the first carriage
Data Source
Figure 1~2
Figure 3~4
AI summary
An apparatus for use in carrying a load (18) particularly in theatrical performances comprising a supported guide rail (4), with a first and second carriage (5,6) movably mounted on the guide rail, the first carriage being adapted to carry a movable lift line (19) for carrying the load, and a compensator system linking the first and second carriage and being arranged such that on movement of the first carriage or the second carriage, the other carriage moves in the same direction and the second carriage moves a shorter distance than the first carriage. Lifting and lowering of the load may be achieved independently of travel along the rail and a load may be transported at a constant height.