Light Fixture Handle Positioning for Stable Carrying
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Solution Overview
Problem
Conventional light fixtures with handles placed low relative to the gravitational center are difficult to lift and prone to tilting or dropping, especially when large, due to instability during carrying.
Innovation Solution
Placing handles at the upper part of the yoke above the gravitational center of the light fixture, allowing for stable carrying and reducing the risk of tilting, with options for the handles to extend upwards or outwards for increased stability and accessibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If the handle is placed low at the light fixture in relation to the gravitational center, then the light fixture structure is compact, but lifting the light fixture is difficult and there is a risk of tilting and dropping
Solution Approach 1:
The handle is inverted from the conventional low position to an upper position on the yoke, above the gravitational center. This inversion resolves the contradiction by placing the handle where it provides better leverage and stability during lifting, eliminating the tilting risk while maintaining compact structure.
2Ease of operation
If the handle is placed below the rotational center of the head, then the light fixture can be carried by an individual, but the head might move during carrying which can lead to movement of the gravitational center and result in the light fixture being dropped
Solution Approach 1:
The handle position is inverted from below to above the rotational center of the head. This placement ensures that when the head rotates, the rotation occurs below the handle, preventing head movement from affecting the gravitational center and maintaining carrying stability and reliability.
3Reliability
If the handle is placed at the upper part of the yoke above the gravitational center, then the light fixture can be carried stably, but the handle placement complexity increases
Solution Approach 1:
The upper yoke handle serves multiple functions simultaneously: it provides stable carrying above the gravitational center, prevents head rotation interference, and maintains accessibility. This multi-functionality resolves the contradiction by achieving high reliability without proportionally increasing complexity.
Data Source
AI summary
A light fixture having a head, a yoke and a base, the yoke having handles for carrying the light fixture. Placing the handle at the upper part of the yoke is very efficient if the light fixture is to be carried. Access to these handles is possible directly in a flight case because there is sufficient space for getting access to the handles above the yoke. In terms of small light fixtures, an individual can easily carry the light fixture by these handles and safely lift the light fixture from a flight case. In the case of very large light fixtures, two individuals can lift the fixture from both sides of a flight case and can carry the light fixture by the handles. By placing the handles as high as possible in relation to the light fixture, the light fixture can be carried in a very stable manner.