Chopstick Grip Structure With Dual Finger-Guiding Protrusions
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Solution Overview
Problem
Current chopstick designs with single protrusions often lead to unstable hand positioning, causing the holding posture to shift away from the correct position, resulting in difficulty in gripping and releasing food effectively.
Innovation Solution
A pair of chopsticks with two protrusions on the lower chopstick, one touching the vicinity of the first joint of the ring finger and the other the finger pad of the third section of the index finger, optionally connected by a connecting element forming a half-ring or quarter-spheroid structure, to provide additional support and stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a single protrusion is provided on the lower chopstick, then the holding stability is enhanced to some extent, but the holding position of hand easily shifts away from the correct position
Solution Approach 1:
The single protrusion is divided into two separate protrusions: a first protrusion that touches the vicinity of the first joint of the ring finger, and a second protrusion that touches the finger pad of the third section of the index finger. This segmentation allows each protrusion to independently guide specific finger positions, preventing hand position shifts while maintaining holding stability.
Solution Approach 2:
Different protrusions are positioned at specific locations on the lower chopstick to contact different parts of the hand (ring finger joint and index finger pad). Each protrusion provides localized guidance for its corresponding finger position, ensuring accurate hand placement without interfering with other fingers.
2Device complexity
If only one protrusion is used, then the structure remains simple, but the protrusion cannot touch user's hand in a correct and firm manner
Solution Approach 1:
The structure is segmented into two protrusions instead of one, each responsible for guiding a specific finger position. This simple segmentation significantly improves the ability to guide correct holding posture without adding complex mechanisms or multiple components.
Data Source
AI summary
The invention relates to a pair of chopsticks, comprising: an upper chopstick, and a lower chopstick with a first protrusion and a second protrusion, wherein both of the first and second protrusions protrude from the back surface of the lower chopstick, so that at the holding status of the chopsticks, the first protrusion can touch the vicinity of the first joint of the ring finger of user and the second protrusion can touch the finger pad of the third section of the index finger of user. With the two protrusions coexisting in the lower chopstick, the chopsticks can be firmly held by hand of users.