Camera Holding Arm With Dynamic Counterweight Balancing
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Solution Overview
Problem
Existing camera holding and moving devices lack dynamic weight balancing, resulting in imbalances when the camera moves away from a central position, requiring user support to maintain equilibrium.
Innovation Solution
A holding and moving device with a support foot, a bearing arm, and two pivot arms that maintain parallel alignment, ensuring the center of gravity of the load and balance weight remain in a straight line, allowing for dynamic balancing independent of the pivot arm positions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a traditional camera holding device with a single lever arm and chain drive mechanism is used, then the device structure is relatively simple, but dynamic weight balancing is lost when the camera moves away from the central position
Solution Approach 1:
The device is divided into two separate lever arms (first lever arm for camera, second lever arm for counterweight) that can be independently adjusted. Each lever arm has its own adjustment mechanism, allowing separate optimization of camera positioning and weight balancing without interfering with each other, thus maintaining balancing precision while keeping the structure manageable
Solution Approach 2:
The counterweight lever arm is nested within the structure of the first lever arm assembly. The second lever arm with counterweight is positioned inside or alongside the first lever arm, sharing common mounting points and structural support, which reduces overall device complexity while maintaining the dual-lever functionality for dynamic balancing
2Adaptability or versatility
If the camera is positioned at extreme positions with greater vertical deflection, then the freedom of movement is increased, but equilibrium is lost due to disproportional inherent weights
Solution Approach 1:
The device incorporates dynamic adjustment capabilities where the counterweight position on the second lever arm can be changed in real-time to match the camera's position on the first lever arm. This dynamic reconfiguration allows the system to maintain equilibrium whether the camera is at central or extreme positions, enabling full freedom of movement without sacrificing stability
Solution Approach 2:
The system changes the parameters of weight distribution by allowing independent adjustment of the camera's position on the first lever arm and the counterweight's position on the second lever arm. By varying these positional parameters and their corresponding weights, the device maintains proportional balance ratios across all movement ranges, preserving equilibrium at extreme positions
3Ease of operation
If a chain drive mechanism is used to respond to pivoting movements, then the balance weight arm can pivot in response to camera movement, but dynamic weight balancing is not achieved and user support is still required
Solution Approach 1:
The device transitions from static weight balancing to dynamic weight balancing by enabling independent movement of both lever arms. The first lever arm responds to camera positioning while the second lever arm with counterweight can be independently adjusted to maintain balance at any position, providing automatic dynamic balancing without requiring user intervention
Solution Approach 2:
The chain drive mechanism is separated into two independent systems: one chain drive for the first lever arm responding to camera movement, and another chain drive for the second lever arm providing counterweight adjustment. This segmentation allows each lever arm to be controlled independently, achieving precise dynamic weight balancing where the counterweight can be positioned to offset the camera's weight at any angle or position
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 independent dynamic weight balancing, allowing the camera to be positioned freely without user support, maintaining balance at extreme positions.
Implementation Method 1
ensuring the center of gravity of the load and balance weight remain in a straight line, allowing for dynamic balancing independent of the pivot arm positions
Data Source
AI summary
A holding and moving device includes a support foot, a bearing arm secured pivotably onto the support foot to form a useful load side section and a weight-side section, a first pivot arm connected to the useful load side section of the bearing arm for attachment of a useful load and/or holding device for a useful load, and a second pivot arm connected to the weight-side section of the bearing arm for attachment of a balance weight. The bearing arm and the first and second pivot arms are connected to one another such that the alignment of the first and second pivot arms are essentially parallel to one another in each position. The second pivot arm and/or the weight-side section are designed such that the weight of the first pivot arm and/or of the useful load side section is balanced in each position of the holding and moving device.