Remote-Controlled Power Tool Interface for Construction Robots

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Solution Overview

Problem

Existing power tools require extensive modifications to be used with construction robots, making them costly and difficult to switch between manual and automated use, and existing protection devices hinder robot operation.

Innovation Solution

A remote-controllable electric power tool with a data interface that allows for wireless or electrical control, enabling seamless integration with construction robots while maintaining manual usability, and an interface adapter for standard battery-powered tools to connect with construction robots, facilitating easy attachment and signal transmission.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Extent of automation

If power tools are modified with hydraulic or pneumatic systems for mechanical control by construction robots, then automated control capability is improved, but device complexity and modification effort increase significantly

Engineering Contradiction:

Improveautomated control capabilityVSAvoidmodification effort

Core Design Contradiction:

Extent of automationVSDevice complexity

Solution Approach 1:

The patent replaces mechanical control systems (hydraulic/pneumatic) with electronic control systems. The power tool is equipped with electronic control circuits and communication interfaces that enable direct electrical control by the construction robot, eliminating the need for complex mechanical actuation systems while achieving the same automated control function.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The power tool is designed with universal control interfaces that can accept control signals from both manual operation and automated robot control. The electronic control system can operate in multiple modes (manual and automated), allowing the same device to serve dual purposes without requiring separate specialized systems for each control method.

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Adaptability or versatility

If extensive modifications are made to construction robots for each power tool, then power tool compatibility is improved, but loss of time and increased cost occur

Engineering Contradiction:

Improvepower tool compatibilityVSAvoidpreparation effort

Core Design Contradiction:

Adaptability or versatilityVSLoss of time

Solution Approach 1:

The control interface is segmented into standardized modular components that can be universally applied across different power tools. Rather than modifying the entire robot system for each tool, the patent implements separate, interchangeable control interface modules that maintain compatibility with various power tool types while requiring minimal integration effort.

Inventive Principle:

Principle #1Segmentation

Data Source

PatentUS20260027691A1Remote-controllable power tool for use by a construction robot, and system

Publication Date: 2026.01.29 HILTI AG

AI summary

An electric power tool (10), in particular a handheld power tool, including a motor (40) and a tool fitting (14) for holding a tool, for example a drilling tool, a cutting tool, and/or a grinding tool, wherein the motor (40) is configured to drive the tool fitting (14). The power tool (10) is remote-controllable. It can have a protection device (42) which is activatable and/or deactivatable by remote control. A system (200) consisting of such a power tool (10) and a construction robot (210) is also provided. The power tool (10) can be used particularly universally and simply, in particular both manually and in an automated fashion by the construction robot (210).