Tripod Leg Wire Transmission for Synchronized Height Adjustment
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Solution Overview
Problem
Existing tripods for video-photographic equipment are cumbersome to adjust, requiring operators to manually move and block multiple telescope-like sections to achieve the desired height, which is inconvenient and prone to accidental falls.
Innovation Solution
A tripod design featuring a transmission device that connects the sections, allowing a single control element to simultaneously block or unblock and move all sections, with a wire system and redirection elements to synchronize the movement of the first, second, and third sections, enabling easy adjustment of the overall extension without needing to manually handle each section.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If multiple sections are moved manually to achieve desired height, then the height can be precisely adjusted, but the process is time-consuming and cumbersome
Solution Approach 1:
The wire ensures continuous transmission of movement across all leg sections. When one section is moved, the motion is continuously transmitted through the wire to the other sections, maintaining synchronized movement throughout the adjustment process. This eliminates gaps or delays in the adjustment action.
Solution Approach 2:
The wire serves as a mechanical intermediary that couples the movement of individual sections. By pulling or pushing one section, the operator indirectly controls all sections through the wire's tension and redirection elements, significantly reducing the time and effort required for height adjustment.
2Stability of the object's composition
If all sections are blocked simultaneously, then the structure is stabilized, but the adaptability for different height configurations is reduced
Solution Approach 1:
The leg sections are designed to be dynamically adjustable, transitioning between locked and unlocked states. The blocking device can engage or disengage from any of the three sections, allowing the structure to adapt between stable locked configurations and flexible unlocked configurations for adjustment.
Solution Approach 2:
The blocking mechanism is segmented to interact with each section independently while maintaining the capability to block all sections simultaneously. This segmentation preserves both structural stability when blocked and adaptability when unblocked, as each section can be individually positioned before being locked into place.
Data Source
AI summary
A support for video-photographic equipment includes:at least one leg telescopically extendible between a retracted configuration and an extended configuration and has a first section, a second section engaged in a sliding manner with the first section; and a third section engaged in a sliding manner with the second section;a blocking device on one of the sections of the leg, interacting with the above-mentioned sections to block or unblock relative axial sliding thereof and is provided with a control element connected to the second section and actuable to control the blocking device,a transmission device connecting the first, second and third sections, and includes at least first and second redirection elements secured to the second section in longitudinally opposite positions, a securing element fixed to the third section and at least one wire extending between the first and second redirection elements and the securing element.