Dual-Rail Eye Exam Instrument Positioning for Wide Stable Motion
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Solution Overview
Problem
Conventional eye-examining devices have limited driving areas due to fixed horizontal and vertical rotation, require large and complex structures, and lack stability in operation.
Innovation Solution
A double rail structure with horizontal and vertical guiding rails and integrated driving units, allowing for stable, electrically driven rotation at the center of gravity, with position detection sensors and a damping lever for precise control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of moving object
If rotation is performed at a fixed location, then the driving structure is simpler, but the rotation driving area is limited
Solution Approach 1:
The patent transitions from fixed-point rotation to multi-dimensional movement by introducing horizontal and vertical guiding rails that enable the driving unit to move along both horizontal and vertical directions, thereby expanding the rotation driving area from a single location to a two-dimensional space
Solution Approach 2:
The driving system is divided into independent components: horizontal guiding rail, vertical guiding rail, horizontal driving unit, and vertical driving unit. Each component performs a specific function along its designated axis, allowing the system to achieve wide coverage through coordinated movement of segmented parts
2Productivity
If a complex linear or rotational driving structure is used, then the driving capability is enhanced, but the device occupies more space
Solution Approach 1:
The vertical guiding rail and vertical driving unit are integrated within the horizontal driving structure, with the vertical components nested along the horizontal axis. This nesting arrangement allows both horizontal and vertical driving capabilities to coexist in a compact configuration, enhancing driving capability without proportionally increasing device volume
Solution Approach 2:
The driving unit serves multiple functions by combining horizontal and vertical movement capabilities in a single integrated component. This multi-functional design eliminates the need for separate driving mechanisms for different directions, thereby improving overall driving capability while reducing the total device size
3Reliability
If rotation is performed away from the center of gravity, then the driving mechanism is simpler, but the driving stability deteriorates
Solution Approach 1:
The patent replaces complex mechanical rotation mechanisms with a more stable translational movement system along guiding rails. By using linear motion along predefined tracks rather than traditional rotational joints, the system achieves superior driving stability while maintaining reasonable mechanical complexity
Data Source
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AI summary
Disclosed are a driving device capable of horizontally and vertically rotating a heavy eye-examining instrument and an eye-examining device having the same. The horizontal and vertical rotation driving device comprises: a horizontal guider (10) comprising a horizontal guiding rail (12) extending by a predetermined length in the horizontal direction; a horizontal driving unit (20) that is mounted on the horizontal guiding rail (12) and moves along the horizontal guiding rail (12); a vertical guider (30) that is fixedly coupled to the horizontal driving unit (20), moves horizontally along the horizontal driving unit (20), and comprises a vertical guiding rail (32) extending by a predetermined length in the vertical direction; and a vertical driving unit (40) that is mounted on the vertical guiding rail (32) and moves along the vertical guiding rail (32).