Projector Mount Fine Adjustment for Pitch and Slant Alignment
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Solution Overview
Problem
Conventional adjusting apparatuses for overhead projectors can only adjust the slant or pitching angle of the projector, limiting the adjusting directions and affecting the projecting effect.
Innovation Solution
A fine-adjusting apparatus with a mounting frame, assembling device, pitch-adjusting device, left-right adjusting device, and connecting mount, allowing for simultaneous adjustment of slant and pitching angles, as well as positional adjustments, using a combination of sliding, pivoting, and rotating mechanisms.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a conventional adjusting apparatus is used, then the structure is simple, but the adjusting directions are limited and cannot adjust both slant angle and pitching angle simultaneously
Solution Approach 1:
The adjusting apparatus is divided into multiple independent adjustment mechanisms: a slant angle adjustment mechanism with a first adjusting component, and a pitching angle adjustment mechanism with a second adjusting component. Each mechanism can operate independently, allowing simultaneous adjustment of both angles while maintaining a modular structure that doesn't excessively increase complexity.
Solution Approach 2:
The second adjusting component (pitching angle mechanism) is disposed on the first adjusting component (slant angle mechanism), creating a nested configuration. This nesting allows the pitching angle adjustment to be performed on top of the slant angle adjustment structure, enabling multi-directional adjustment without proportionally increasing the overall device footprint or complexity.
2Adaptability or versatility
If multiple adjustment mechanisms are added to enable multi-directional adjustment, then the adjusting versatility improves, but the device complexity increases
Solution Approach 1:
The first and second adjusting components are designed with universal functionality where each component can serve both as a mounting structure for the next component and as an independent adjustment mechanism. For example, the first adjusting component provides slant angle adjustment while also serving as the mounting base for the second adjusting component, reducing the need for additional separate structures.
3Reliability
If the adjusting apparatus allows simultaneous adjustment of slant and pitching angles, then the projecting effect improves, but the ease of operation may be affected due to increased complexity
Solution Approach 1:
The adjusting components are designed to be dynamically adjustable during operation, allowing the projector to be positioned at various angles and orientations. The mechanisms enable smooth, continuous adjustment of both slant and pitching angles independently, making the system adaptable to different projection requirements while maintaining operational simplicity through intuitive mechanical controls.
Data Source
AI summary
A fine-adjusting apparatus for an overhead projector has a mounting frame, an assembling device, a pitch-adjusting device, a left-right adjusting device and a connecting mount. The mounting frame is adapted to mount on a wall. The assembling device is detachably connected to the mounting frame and has a sliding mount and a base mount. The sliding mount is slidably mounted in the mounting frame. The base mount is pivotally connected to the sliding mount. The pitch-adjusting device is connected to the assembling device and has a pitching frame, a guiding bar and a pitch-adjusting shaft. The left-right adjusting device is connected to the pitch-adjusting device and has an adjusting frame, a left-right adjusting shaft and a linking element. The connecting mount is pivotally connected to the left-right adjusting device, is used to connect with the overhead projector and has a connecting board, two pivot frames and multiple extending arms.