Resin Robot End Effector With Integrated Sensing Circuitry

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Solution Overview

Problem

Existing end effectors for robot arms are heavy, prone to rust, and require multiple parts for additional functions like sensing, which complicates their design and increases weight, while lacking versatility in functionality.

Innovation Solution

An end effector with a resin-based body part that integrates circuitry, including patterns for sensing and pressure detection, formed through laser direct structuring, allowing for multiple functions such as contact detection, height sensing, pressure measurement, and magnetic field generation, without additional components.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Strength

If end effectors are made of metal to ensure strength and durability, then strength is improved, but weight increases and corrosion resistance deteriorates

Engineering Contradiction:
ImprovestrengthVSAvoidweight
Core Design Contradiction:
StrengthVSWeight of moving object

Solution Approach 1:

The patent changes the material parameter from metal to resin, specifically using engineering plastics and super engineering plastics that provide sufficient strength while dramatically reducing weight. The resin material maintains the necessary mechanical properties for end effector operation while eliminating the weight and corrosion issues associated with metal construction.

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The patent employs composite material construction by integrating circuitry directly into the resin body part, creating a composite structure that combines the lightweight properties of resin with functional electronic components. This integrated approach eliminates the need for separate metal structural elements while maintaining overall strength.

Inventive Principle:
Principle #40Composite materials

2Adaptability or versatility

If additional sensors and circuit substrates are added to end effectors to enable sensing functions, then adaptability is improved, but device complexity increases

Engineering Contradiction:
Improvesensing functionVSAvoidconfiguration
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent merges the circuit substrate and sensor elements directly into the resin body part through integral formation. The circuitry is embedded within or on the surface of the resin, eliminating the need for separate substrate components and reducing overall assembly complexity while maintaining sensing capabilities.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The resin body part serves multiple functions simultaneously: it provides the structural body, integrates the circuitry for electrical connections, and incorporates sensor elements for detection. This multi-functional design reduces the number of separate components needed while enabling various sensing functions including contact detection and pressure measurement.

Inventive Principle:
Principle #6Universality (Multi-functionality)

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 integrated circuitry enables a simpler, lighter, and more versatile end effector configuration with enhanced functionality, including contact detection, height sensing, pressure measurement, and magnetic field generation, while being waterproof and resistant to corrosion.

Implementation Method 1

a wiring pattern is formed by laser direct structuring

Methodology Applied
Scientific EffectLaser heating: Laser

Implementation Method 2

the circuitry may have wiring formed in a predetermined pattern on a surface of the resin of the body part and contribute to the predetermined function based on the wiring itself

Methodology Applied
Scientific EffectElectrical resistance change: Electrical Resistance

Implementation Method 3

the function may include a fourth function of generating a magnetic field to transmit electric power to a fourth object, and the pattern corresponding to the fourth function may include a helical fourth pattern

Methodology Applied
Scientific EffectElectromagnetic induction: Electromagnetic Induction

Data Source

PatentEP4656336A1End effector and robot arm
Publication Date: 2025.12.03 DIC CORP
  • EP4656336A1 patent drawingFigure 1
  • EP4656336A1 patent drawingFigure 2
  • EP4656336A1 patent drawingFigure 3

AI summary

An end effector 10 according to the present disclosure is an end effector 10 for use in a robot, and includes a body part 11 containing a resin, and a circuitry part 12 including circuitry integrally formed with the resin in the body part 11 and contributing to a predetermined function.