Fastener driver

The compact and robust fastener driving device addresses the issue of large dimensions and mechanical robustness by employing a spring-based energy storage system with a rotary tensioning mechanism and a roller train, achieving efficient energy transfer and reduced size through a 2:1 gear ratio.

EP4488001A1Inactive Publication Date: 2025-01-08HILTI AG
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Patent Information

Application Number
EP2023183502
Authority / Receiving Office
EP · EP
Patent Type
Applications
Current Assignee / Owner
Filing Date
2023-07-05
Publication Date
2025-01-08
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

Existing fastener driving devices have large dimensions due to energy transmission elements, which is undesirable in compact applications, and lack mechanical robustness.

Method used

A device utilizing a spring for energy storage with a driving element that includes a rotary tensioning system, featuring a gas spring and a piston to compress the spring, and a rotary drive with an electric motor and gear mechanism, allowing for a compact and robust design by using a roller train with a 2:1 ratio to reduce installation space.

Benefits of technology

The solution enables a compact and mechanically robust fastener driving device that efficiently transfers energy from the spring to the fastening element, reducing the device's size while maintaining high mechanical robustness and energy transfer efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

A device for driving a fastening element into a substrate is described, comprising a spring and a driving element, wherein the driving element has a projection, further comprising a clamping device with a rotary drive, a rotary element and a driver.
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Citation Information

Patent Citations

  • Striking tool

    US20190255690A1

  • Electric tacker

    EP0170030B1

  • Modified electrical motor driven nail gun

    US20030192933A1

  • Fastener driving tool

    US20090194574A1

  • Driving tool

    US20210146517A1