Rotate-tilt mechanism for pendant light fixture direction control
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Solution Overview
Problem
Pendant-style light fixtures lack control over the directionality of emitted light, necessitating the addition of multiple fixtures to achieve desired illumination, which does not fully address the issue of lighting control.
Innovation Solution
A light fixture design featuring an upper and lower housing with a rotate-tilt mechanism that allows the lower housing to rotate and tilt relative to the upper housing, enabling precise control over the direction of emitted light through a combination of rotation and tilting movements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If pendant-style light fixtures are used for illumination, then floor space is saved and aesthetic design is achieved, but control over the directionality of emitted light is limited
Solution Approach 1:
The patent applies the dynamics principle by transforming the fixed pendant fixture into a movable one. The lower housing is made rotatable and tiltable relative to the upper housing through a rotate-tilt mechanism, allowing the light direction to be dynamically adjusted. This enables users to control light directionality without changing the fixture's mounted position, resolving the contradiction between ease of operation and device complexity.
Solution Approach 2:
The patent segments the fixture into two separate housings: an upper housing that remains fixed and a lower housing that can rotate and tilt. This segmentation allows independent movement of the light-emitting portion while maintaining the overall fixture structure, providing directional control without requiring complete fixture repositioning or additional fixtures.
2Adaptability or versatility
If additional pendant fixtures are added to achieve desired illumination control, then lighting coverage is improved, but device complexity and installation complexity increase
Solution Approach 1:
The patent makes a single pendant fixture multi-functional by enabling it to perform multiple lighting directions and angles through rotation and tilting. This allows one fixture to replace what would traditionally require multiple fixed fixtures, providing the same lighting control flexibility without increasing the number of devices installed.
3Ease of operation
If a rotate-tilt mechanism is added to enable rotation and tilting, then control over light directionality is enhanced, but device complexity increases
Solution Approach 1:
The rotate-tilt mechanism implements dynamics by allowing the lower housing to move freely in rotation and tilting directions. The mechanism includes a rotation plate that rotates relative to the upper housing and a tilt rod that enables tilting movement, providing continuous adjustable light direction control.
Solution Approach 2:
The mechanism is segmented into distinct functional components: a rotation plate for rotational movement and a tilt rod for tilting movement. This segmentation allows each component to perform its specific function independently, simplifying the overall mechanism design while achieving complex directional control.
Data Source
AI summary
A light fixture having an upper housing and a lower housing. A rotate-tilt mechanism is interposed between the two housings to permit the lower housing both to rotate and tilt relative to the upper housing.