Handle Operating Rod Threshold Adjustment for Different Palm Sizes
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Solution Overview
Problem
Existing handles with fixed operating rod threshold values are not suitable for users with different palm sizes, leading to operational discomfort and affected hand feel.
Innovation Solution
A method for adjusting the operating rod threshold value based on the palm size of the user, which involves acquiring position data of palm feature points, obtaining palm size data, and adjusting the threshold value to ensure it falls within a suitable range for the user.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the operating rod threshold value is fixed, then the handle structure is simple and easy to manufacture, but it cannot adapt to users with different palm sizes, affecting operational comfort
Solution Approach 1:
The patent applies dynamics by making the operating rod threshold value adjustable rather than fixed. The system dynamically adapts the threshold value based on detected palm size, allowing the handle to transform from a static structure to a dynamic one that responds to user characteristics. This resolves the contradiction by enabling adaptability through dynamic adjustment while maintaining relatively simple overall structure.
Solution Approach 2:
The patent changes the parameter of the operating rod threshold value based on palm size detection. By detecting palm size and adjusting the threshold value accordingly, the system achieves adaptability to different users. This parameter change approach allows the same handle structure to serve users with different palm sizes, resolving the contradiction between adaptability and structural simplicity.
2Ease of operation
If the operating rod threshold value is fixed at a standard position, then the manufacturing precision requirement is low, but users with smaller palm sizes cannot easily push the operating rod to the limit stroke
Solution Approach 1:
The patent adjusts the operating rod threshold value parameter based on detected palm size. For users with smaller palm sizes, the system reduces the threshold value, allowing them to easily push the operating rod to the required position. This parameter adaptation maintains ease of operation across different user groups while using detection technology rather than requiring multiple precision-manufactured handles.
Solution Approach 2:
The system uses feedback from palm size detection to adjust the operating rod threshold value. By detecting the user's palm size and using this information to set an appropriate threshold value, the system ensures ease of operation for each user. This feedback mechanism replaces the need for high manufacturing precision with adaptive control.
3Ease of operation
If the operating rod threshold value is increased for users with larger palm sizes, then the ease of operation improves, but the finger remains in a curled state affecting hand feel
Solution Approach 1:
The patent adjusts the operating rod threshold value parameter upward for users with larger palm sizes, allowing their fingers to extend fully during operation. This parameter adjustment eliminates the harmful effect of fingers remaining curled, improving both ease of operation and operational hand feel simultaneously.
4Adaptability or versatility
If multiple fixed operating rod threshold values are provided for different functions, then the functionality is enhanced, but the device complexity increases
Solution Approach 1:
Instead of providing multiple fixed operating rod threshold values for different functions, the patent uses a dynamic adjustment mechanism that adapts the threshold value to the user's palm size. This dynamic approach achieves functional adaptability without requiring multiple fixed positions, thereby avoiding increased device complexity.
Data Source
AI summary
A handle and a method, system and device for adjusting an operating rod threshold value are disclosed. The method for adjusting an operating rod threshold value comprises: acquiring position data of palm feature points when a user is grasping a gripping portion of a handle (S1); obtaining palm size data according to the position data of the palm feature points (S2); judging whether the operating rod threshold value of the handle is within a suitable operating threshold range corresponding to the palm size data, and if not, adjusting the operating rod threshold value so that the operating rod threshold value after adjusted is suitable for the user (S3). The method for adjusting an operating rod threshold value can adjust the operating rod threshold value of the operating rod of the handle according to the palm size of different users, thereby improving the operational comfort of users.