Radial Gobo Support Assembly for Stage Lighting Fixtures
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Solution Overview
Problem
Existing gobo support assemblies in stage lighting fixtures require axial space for inserting and extracting gobos, making them cumbersome and difficult to manage in tight spaces, and often necessitate detaching and reattaching springs for positioning.
Innovation Solution
A gobo support assembly that connects the gobo carrier wheel and gobo support in a sliding manner perpendicular to the axis, utilizing a reversible click-on locking mechanism to securely hold the gobo support in place without requiring axial space, allowing for easy and efficient gobo changes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If gobo supports are fitted in selectively releasable manner inside second seats on gobo carrier wheels using existing solutions, then gobo supports can be changed, but axial space is required for manoeuvring to insert and extract the gobo supports
Solution Approach 1:
The patent changes the insertion direction from axial (parallel to rotation axis) to radial (perpendicular to rotation axis). The gobo support is inserted through a radial opening in the gobo carrier wheel, moving from the side rather than from the axial end. This dimensional change eliminates the need for axial manoeuvring space while maintaining selective releasability through the spring-loaded retention mechanism that engages with radial protrusions on the gobo support.
2Stability of the object's composition
If gobo supports are riveted to the gobo carrier wheel, then structural stability is improved, but gobo changes become awkward requiring axial extraction in limited space
Solution Approach 1:
The patent transitions from a static riveted connection to a dynamic spring-loaded retention system. The spring exerts continuous radial force to hold the gobo support in place, providing stable fixation during operation. Meanwhile, the mechanism allows easy release by overcoming the spring force, enabling quick gobo changes without axial manoeuvring. The retention protrusions engage with corresponding features on the gobo support, maintaining stability while permitting controlled release.
3Volume of moving object
If axial space is reduced for compact fixture design, then fixture size is improved, but existing gobo support mechanisms cannot be inserted and extracted
Solution Approach 1:
The patent eliminates axial insertion requirements by implementing radial insertion through a side opening in the gobo carrier wheel. The gobo support is pushed radially inward through the opening and retained by spring-loaded protrusions. This allows compact axial packaging of the fixture while maintaining full insertion and extraction capability through the radial direction, solving the space constraint problem.
Data Source
AI summary
A gobo support assembly, for a stage lighting fixture, has a disk-shaped gobo; a gobo support having a first seat for housing the gobo; and a gobo carrier wheel rotating about an axis and having a second seat for housing the gobo support; the gobo carrier wheel and the gobo support being connectable in sliding manner in a direction substantially perpendicular to the axis, and being locked mutually by a reversible click-on locking mechanism to hold the gobo support in a given position inside the second seat.