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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-2026042201-A1, on 12 February 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-2026-000002953

Variable stiffness mechanism

Published
Permanent URL
Classification
Robotics & Automation › Robot Architectures
Inventors
NELSON CARL, SWERCZEK NICK
Assignee
THE BOARD OF REGENTS OF UNIV OF NEBRASKA
Original source
US-2026042201-A1, the United States Patent and Trademark Office, 12 February 2026
Document SHA-256
ce93fdb2d55d4dcf14d82025fcd96a388b11aad4d438b4c4219df9ce1d3f34b5

Abstract

A variable stiffness mechanism for robotic applications. A robotic arm segment comprising two bodies pivotably coupled together at one end and having a generally elongate form factor. A spring-loaded carriage moves longitudinally along one of the two bodies and is in contact with the other body, such that the effective rotational stiffness of the pin joint is equal to the stiffness of the carriage spring multiplied by the distance between the pin joint and the spring. The distance between the pin joint and the spring can be varied using a motor and belt drive arrangement. A stopper may be coupled to the belt drive to lock the relative motion of the two bodies.

Publication information

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Citation

OpenTechnical Publication OT-2026-000002953, “Variable stiffness mechanism,” published September 15, 2026 at 19:16:21 UTC, https://opentechnical.org/p/OT-2026-000002953.

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This record reproduces a document published elsewhere and is provided for reference and study. Rights in the original remain with its owner. See the publication policy.