Textured Chopstick and Tong Tips for Secure Food Gripping

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Solution Overview

Problem

Conventional chopsticks and tongs are difficult for new users to manipulate due to their separate design, and they often fail to securely grasp food because of smooth surfaces, leading to slipping issues.

Innovation Solution

A food utensil with an elongate member featuring a textured end with circumferentially disposed protrusions for improved food gripping, optionally hingedly interconnected for enhanced stability and usability.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If conventional smooth chopsticks or tongs are used, then the utensil structure remains simple and easy to manufacture, but the food-grabbing ability is poor due to smooth surfaces causing food to slide or slip

Engineering Contradiction:
Improvefood-grabbing abilityVSAvoidmanufacturing simplicity
Core Design Contradiction:
ReliabilityVSEase of manufacture

Solution Approach 1:

The patent applies local quality by providing protrusions only at the food-grabbing end of the elongate member, while the rest of the member remains smooth. This localized texturing improves food gripping ability at the critical location without complicating the manufacturing of the entire utensil structure.

Inventive Principle:
Principle #3Local quality

2Ease of operation

If traditional separate chopsticks are used, then the utensil design is simple and traditional, but new users find it difficult to manipulate the unconnected sticks

Engineering Contradiction:
Improveease of manipulationVSAvoidutensil structure
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The patent merges two separate chopsticks into a single elongate member with a unified structure. This combination provides the stability and ease of manipulation needed by new users while maintaining the essential functionality of chopsticks for pushing and grasping food.

Inventive Principle:
Principle #5Merging (Combining)

3Reliability

If serrations or grooves are provided on conventional chopsticks, then food gripping is improved initially, but the textured surfaces become impacted with food and lose effectiveness quickly

Engineering Contradiction:
Improvegrip effectivenessVSAvoidgrip durability
Core Design Contradiction:
ReliabilityVSDuration of action of moving object

Solution Approach 1:

The patent segments the surface at the food-grabbing end into multiple discrete protrusions rather than continuous serrations or grooves. This segmentation prevents food from becoming impacted across the entire surface, as food particles cannot bridge across the gaps between protrusions, thereby maintaining grip effectiveness over extended use.

Inventive Principle:
Principle #1Segmentation

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

The textured end provides reliable food gripping and manipulation, reducing slipping and sliding, while the hinged option ensures consistent functionality regardless of orientation, catering to both traditional and hinged utensil users.

Implementation Method 1

the food may easily slide or slip from the grasp due to the generally smooth surface of the sticks or arms

Methodology Applied
Scientific EffectFriction: Friction

Data Source

PatentUS8038187B2Food utensil
Publication Date: 2011.10.18 SYST ORIENTED TECHN INC
  • US8038187B2 patent drawing
  • US8038187B2 patent drawing
  • US8038187B2 patent drawing

AI summary

A food utensil has an elongate member that has a first end, a second end and a longitudinal surface extending from the first end to the second end. The first end includes a plurality of protrusions disposed circumferentially around the longitudinal surface at the first end. A pair of tongs includes at least one such elongate member, hingedly interconnected to another such elongated member. In one embodiment, the utensil is a chopstick, and preferably is provided as a pair of two such chopsticks. A method of making a food utensil includes forming an elongate member having a first end and a second end, and forming a plurality of protrusions circumferentially around a first end of the elongate member.