Camera Pedestal Steering Mechanism for Smooth Movement
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Solution Overview
Problem
Conventional camera pedestals and dollies face engineering design challenges in providing smooth and precise movement, especially in achieving uniform and smooth camera movements without bumping, rocking, or vibration, which affects the quality of recorded images.
Innovation Solution
A novel camera pedestal design featuring a base with interchangeable leg assemblies that can switch between steering and caster modes, utilizing a steering transmission system with sprockets and chains for precise steering, and a differential mechanism for corrective steering, allowing for smooth and controlled camera movement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional camera dollies use steering systems with positive steering via steering bar, then steering precision is improved, but device complexity increases
Solution Approach 1:
The patent applies dynamics by making the steering system adjustable between two operational modes: positive steering mode (with steering precision) and caster mode (simpler operation). The leg assemblies can be dynamically reconfigured between locked steering mode and unlocked caster mode, allowing the system to adapt its complexity based on operational requirements.
Solution Approach 2:
The patent implements universality by designing leg assemblies that can function in multiple modes. Each leg assembly serves dual purposes: it can act as a positively steered wheel when locked, or as a caster wheel when unlocked. This multi-functionality allows a single system to provide both precise steering capability and simple caster operation, reducing the need for separate systems.
2Ease of operation
If conventional camera pedestals use caster wheels for simple pushing, then ease of operation is improved, but movement precision deteriorates
Solution Approach 1:
The system dynamically switches between caster mode (for ease of operation when precise steering is not needed) and positive steering mode (when movement precision is required). The operator can unlock leg assemblies for simple pushing, then lock them and engage steering for precise positioning, optimizing for the current operational context.
Solution Approach 2:
The leg assemblies provide universal functionality by combining both caster and positive steering capabilities in a single system. This allows the camera pedestal to be easily pushed in any direction when caster mode is engaged, while still providing precise directional control when positive steering mode is activated, thus achieving both ease of operation and movement precision.
3Adaptability or versatility
If interchangeable leg assemblies are implemented, then adaptability is improved, but device complexity increases
Solution Approach 1:
The patent applies segmentation by dividing the camera pedestal into modular leg assemblies that can be independently configured. Each leg assembly is a discrete unit that can be locked or unlocked independently, allowing selective adaptation of different legs for different operational modes. This segmentation makes the adaptability manageable and the complexity localized to individual modules rather than the entire system.
Data Source
AI summary
A camera pedestal has wheels that can be positively steered via a steering bar operating a corrective and crab mode steering system, and that may also be uncoupled from the steering system and operated in a caster wheel mode. The pedestal includes a base having a chassis and four leg assemblies. Each leg assembly has an upper component rotatably attached to the chassis, and wheels attached to a lower component via a caster fitting. The caster fitting allows the wheels to be positioned in a normal position where they are aligned with the rotation axis of the leg assembly, and into a caster position where the wheels are offset from the rotation axis, to allow for caster rolling movement.