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This is a record of a document published elsewhere, first published by the United States Patent and Trademark Office, as US-12589472-B2, on 31 March 2026. OpenTechnical did not first disclose it. The identifier, hashes and timestamps below record what this library served and when, not when the material became public. View the original.

OT-2026-000001286

Method for performing a screwing/unscrewing operation comprising a step of determining the maximum rebound speed of the rotor

Published
Permanent URL
Classification
Tools & Tooling › Clamping Tools
Inventors
MAHOT PIERRE
Assignee
RENAULT GEORGES ETS
Original source
US-12589472-B2, the United States Patent and Trademark Office, 31 March 2026
Document SHA-256
0424feacf310a7fc2d8d514e2ca27a0dcff36489a12425fd5dc937990f25d929

Abstract

A method for controlling torque applied during a screw driving operation using a screw driving device. The device includes: an electric motor provided with a rotor; an output member capable of being rotated; and a rebounding impact mechanism rigidly connected to the rotor and to the output member. The method includes power supplying the motor inducing driving the impact mechanism by the rotor and periodically rotating the output member by the impact mechanism; driving the impact mechanism generating a plurality of successive impacts at the end of each of which the rotor rotates in a rebound in the opposite direction to the screw driving operation; determining a maximum rotational frequency reached by the rotor during the rebound following each of the impacts; and stopping the screw driving operation when the maximum rotational frequency reaches a predetermined threshold corresponding to a predetermined torque level.

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Citation

OpenTechnical Publication OT-2026-000001286, “Method for performing a screwing/unscrewing operation comprising a step of determining the maximum rebound speed of the rotor,” published September 15, 2026 at 19:04:40 UTC, https://opentechnical.org/p/OT-2026-000001286.

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