Suspended Lighting Device Positioning and Balancing Mechanism
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Solution Overview
Problem
Suspended LED lighting devices often slide to incorrect positions due to lack of suitable longitudinal fixtures and are prone to tilting when adjusting the light orientation, causing unbalanced weights and vertical misalignment.
Innovation Solution
The LED lighting device features a positioning system with pulleys and a balancing system that maintains the desired height and vertical alignment, utilizing a male/female coupling system for rotational orientation of the optical group and ensuring the device remains fixed without additional longitudinal fixtures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the lighting device is suspended by a cable without longitudinal fixtures, then the device can be freely positioned at desired height, but the device slides to incorrect positions and cannot maintain the selected position
Solution Approach 1:
A positioning system comprising pulleys and a cable arrangement acts as an intermediary mechanism between the lighting device body and the suspension cable. This system creates friction-based longitudinal stops that prevent sliding while maintaining the ability to position the device at desired heights, resolving the contradiction between free positioning and position stability.
2Adaptability or versatility
If the optical group is made rotatable to orientate light in all directions, then the lighting device can be oriented in desired directions, but the entire lighting device inclines with respect to the vertical direction due to unbalanced weights
Solution Approach 1:
A balancing system with pulleys and counterweights compensates for the weight distribution changes when the optical group rotates. This counterbalancing mechanism prevents the lighting device body from inclining or tilting, maintaining vertical alignment stability while allowing full rotational orientation of the optical group.
3Reliability
If additional longitudinal fixtures are added to prevent sliding, then the position stability is improved, but the device complexity increases
Solution Approach 1:
The positioning system integrates multiple functions into a single mechanism: it provides longitudinal stopping to prevent sliding, maintains the ability to position at desired heights, and works together with the balancing system. This multi-functional approach achieves position stability without adding separate longitudinal fixtures, reducing overall device complexity.
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 device effectively maintains its selected position and remains vertically aligned during orientation adjustments, ensuring stable and adjustable lighting without the need for additional fixtures or counterweights.
Implementation Method 1
The pulleys 61, 81 of the positioning system define, inside the body 3, a path for the cable 2, a path triggering a system of forces capable of keeping the lighting device at the desired height
Implementation Method 2
The balancing system 8 allows maintaining the body 3 of the lighting device 1 in a vertical position
Data Source
Figure 1
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AI summary
A lighting device (1) of the suspended type, comprising a tensioned cable (2) suitable for anchoring to a ceiling, a body (3) sliding along the cable (2), and an optical group (4) engaged to the body (3). The lighting device (1) further comprises a positioning system provided inside the body (3), and comprising a plurality of pulleys which define a path for the cable (2). Said path triggers a system of forces suitable for keeping the lighting device at the desired height.