Projector Mount Assembly for Precise Pan Tilt Roll Alignment
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Solution Overview
Problem
Existing projector adjustment systems are inaccurate, cumbersome, unintuitive, and difficult to use, lacking efficiency, accuracy, reliability, compactness, and ease of use.
Innovation Solution
A projector adjustment system with a support assembly and adjustment assembly that includes movable plates and joints, allowing precise adjustments along three axes (pan, tilt, and roll) using locking and adjustment knobs, ensuring compactness and intuitive operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If traditional adjustment systems are used for projector positioning, then basic adjustment functionality is provided, but the system becomes inaccurate, cumbersome, and difficult to use
Solution Approach 1:
The adjustment system is divided into three independent adjustment assemblies, each responsible for one rotational degree of freedom (pan, tilt, roll). Each assembly contains its own adjustment mechanism with knobs, slots, and locking features, allowing operators to adjust one axis at a time without interference from other axes, thereby simplifying operation while maintaining functionality.
Solution Approach 2:
The adjustment assemblies incorporate movable components including slots that allow linear adjustment, rotational joints that enable angular adjustment, and locking mechanisms that fix positions once adjusted. This dynamic design allows the system to transition between adjustable and fixed states, providing ease of operation during positioning while maintaining stability during use.
2Measurement precision
If multiple adjustment mechanisms are provided for precise positioning, then positioning accuracy is improved, but the system becomes cumbersome and space-consuming
Solution Approach 1:
The three adjustment assemblies are arranged in a nested configuration where each assembly is positioned within or adjacent to the others, sharing common mounting structures and support elements. The first assembly handles pan rotation, the second handles tilt rotation, and the third handles roll rotation, with each assembly compactly integrated into the overall projector structure to minimize total volume while providing full three-axis adjustment capability.
3Reliability
If traditional adjustment systems are used, then basic positioning is achieved, but the system becomes inaccurate and unreliable
Solution Approach 1:
Each adjustment assembly includes pre-configured locking mechanisms and guiding slots that ensure proper alignment and secure positioning before final adjustment. The slots are precisely machined to guide the adjustment components, and the locking features are designed to engage automatically or with minimal effort, ensuring reliable positioning without requiring complex adjustment procedures.
4Volume of moving object
If compact adjustment system is designed, then space is saved, but the system may become difficult to operate
Solution Approach 1:
Each adjustment assembly is designed with locally optimized features including ergonomically positioned knobs, clearly marked slots with appropriate spacing, and accessible locking mechanisms. The compact overall size is achieved through efficient spatial arrangement, while local features of each adjustment mechanism maintain ease of operation through intuitive controls and sufficient adjustment range.
Data Source
Figure 1
Figure 2
Figure 2A
AI summary
An adjustment system (100) for a projector comprises a support assembly (200) suitable for being attached to a structure (S), and an adjustment assembly (R) connected to the support assembly (200) and suitable for being attached to a projector (P); the adjustment assembly (R) comprising an upper plate (1), a lower plate (2), a first movable plate (3), a second movable plate (4), a first joint (8a) and a second joint (8b); a pan adjustment knob (M1) adjusts a rotation of the first movable plate (3); a pair of tilt adjustment knobs (M2; M3) adjust a rotation of the second movable plate (4) around the horizontal tilt axis (X); and a pair of roll adjustment knobs (M4) adjust a rotation of the second movable plate (4) around the horizontal roll axis (Y).