Biological Signal Detecting Apparatus Fixing Structure
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Solution Overview
Problem
Existing biological information detecting apparatuses face challenges in maintaining stable electrode contact with the body surface due to insufficient holding force and positional instability, leading to inaccurate heart rate detection.
Innovation Solution
A biological information detecting apparatus with a strip-shaped fixing part and slidable holders that maintain consistent pressing force on electrodes, even during wearer movement, using joining parts with protrusions and recesses for secure attachment and adjustable positioning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Force
If the electrodes are held by the hook clipping clothes or the like, then the electrodes can be attached to the body, but the holding force is insufficient and the electrodes are deviated or fall off during movement
Solution Approach 1:
The patent combines the hook attachment mechanism with a pressing mechanism that includes a pressing member and pressing force generation structure. This merging allows the hook to provide both attachment and pressing functions simultaneously, ensuring sufficient holding force and stable electrode position during movement.
Solution Approach 2:
The patent introduces a dynamic pressing mechanism where the pressing member can move along the longitudinal direction of the fixing part. This dynamic structure allows the pressing force to be adjusted and maintained automatically during wearer movement, preventing electrode deviation while adapting to body motion.
2Force
If the electrodes are held by inserting the hook through the cut of the attachment belt, then the pressing force is maintained, but the electrodes are deviated when the attachment belt expands or contracts
Solution Approach 1:
The patent employs a dynamic pressing member that can slide along the longitudinal direction of the fixing part. When the attachment belt expands or contracts, the pressing member moves accordingly while maintaining constant pressing force on the electrode, preventing deviation and ensuring stable contact position.
Solution Approach 2:
The pressing member acts as an intermediary between the fixing part and the electrode. It transmits the pressing force from the fixing part to the electrode while allowing for positional adjustment, thereby maintaining both pressing force and contact position stability during belt expansion or contraction.
3Adaptability or versatility
If the fixing part is made stretchable to accommodate body movement, then the apparatus can adapt to wearer movement, but the electrode positions become unstable
Solution Approach 1:
The patent introduces a dynamic pressing member that slides along the longitudinal direction of the fixing part. This dynamic mechanism allows the fixing part to be stretchable while the pressing member maintains stable electrode position by adjusting its position relative to the stretching fixing part.
Solution Approach 2:
The patent divides the fixing part into functional segments: the stretchable fixing part that accommodates body movement and the non-stretchable pressing member that maintains stable electrode contact. This segmentation allows each component to perform its specific function independently, resolving the contradiction between adaptability and position stability.
Data Source
AI summary
A biological information detecting apparatus has an apparatus main body, a pair of biological signal detecting parts provided on the apparatus main body, a fixing part attached to the apparatus main body, holders provided to be slidable along a longitudinal direction of the fixing part, and joining parts configured to releasably join the pair of biological signal detecting parts to the respective holders. Each of the biological signal detecting parts has an electrode adapted to be in contact with a biological surface of a user's body. The fixing part is configured to fix the apparatus main body and the pair of biological signal detecting parts to the user's body.