T-Shaped Haptic Frame Layout for Compact Force Feedback
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Solution Overview
Problem
The prior art force sense presenting apparatus has low efficiency in presenting force sense due to its large size and slanted frame structure, which deviates the center region from the force sense presenting area, requiring a helper for mounting and resulting in inefficient force sense delivery.
Innovation Solution
The apparatus is redesigned with a T-shaped configuration for the upper and lower frames of the right-hand and left-hand units, allowing them to cooperate effectively, reducing size and weight, and enabling easier mounting without a helper by centering the force sense presenting region.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Force
If the frame structure is designed with a slanted configuration to accommodate motors, then the motors can be positioned for force generation, but the device size becomes large and the center region is deviated from the force sense presenting area
Solution Approach 1:
The patent inverts the traditional slanted frame configuration by adopting a T-shaped frame structure where the upper and lower frames are substantially perpendicular to the longitudinal axis. This inversion repositions the force sense presenting area to include the center region, thereby reducing overall device size while maintaining force generation capability through alternative motor positioning on the T-shaped structure.
2Force
If the frame structure is large to accommodate all components, then motors can be positioned for force generation, but the apparatus requires a helper for mounting
Solution Approach 1:
By inverting from a large slanted frame to a compact T-shaped frame with perpendicular upper and lower frames, the patent reduces the apparatus size to a level that enables easy mounting without requiring a helper, while still providing sufficient space for motor integration through the optimized T-shaped geometry.
3Ease of manufacture
If the frame is slanted at 10 degrees to the normal direction, then the structure can be simplified, but the force sense presenting efficiency is reduced due to center region deviation
Solution Approach 1:
The patent inverts the slanted frame design by implementing a T-shaped structure where the upper frame is substantially perpendicular to the longitudinal axis rather than angled at 10 degrees. This design inversion simultaneously achieves structural simplicity and maximizes force sense presenting efficiency by ensuring the center region is included in the force sense presenting area.
Data Source
AI summary
In a force sense presenting apparatus having a right-hand force sense presenting unit and a left-hand force sense presenting unit, one side of an upper frame of the right-hand force sense presenting unit is linearly coupled to the one side of the upper frame of the left-hand force sense presenting unit. A right-hand rear-coupled frame couples an approximately middle location of the upper frame in the right-hand force sense presenting unit to one side of a lower frame in the right-hand force sense presenting unit so that the upper frame and the lower frame are approximately T-shaped viewed from above. A left-hand rear-coupled frame couples an approximately middle location of the upper frame in the left-hand force sense presenting unit to the one side of the lower frame in the left-hand force sense presenting unit so that the upper frame and the lower frame are approximately T-shaped viewed from above.