{"number":"US12703084B2","kindCode":"B2","documentType":"grant","title":{"original":"Variable-stiffness mechanism","english":"Variable-stiffness mechanism"},"abstract":{"original":"A variable-stiffness mechanism may include racks, pinion gears, spring elements, a cable, and a pulley. The variable-stiffness mechanism may be based on a variable-lever principal using the racks as a lever and the pinion gears as a variable pivot point. The pinion gears may be fixed in position relative to the pulley and coupled together by a gear-to-gear mesh. Alternatively, the pinion gears may be configured to translate relative to the pulley using a central drive rack and drive motor.","english":"A variable-stiffness mechanism may include racks, pinion gears, spring elements, a cable, and a pulley. The variable-stiffness mechanism may be based on a variable-lever principal using the racks as a lever and the pinion gears as a variable pivot point. The pinion gears may be fixed in position relative to the pulley and coupled together by a gear-to-gear mesh. Alternatively, the pinion gears may be configured to translate relative to the pulley using a central drive rack and drive motor."},"applicants":["NUtech Ventures"],"inventors":["Carl Nelson"],"filingDate":"2024-09-27","publicationDate":"2026-08-11","grantDate":"2026-08-11","verifiedWithOffice":true,"pdfUrl":"https://downloadpatent.com/pdf/US12703084B2.pdf","pages":{"en":"https://downloadpatent.com/patent/US12703084B2","zh-Hant":"https://downloadpatent.com/zh-Hant/patent/US12703084B2","ja":"https://downloadpatent.com/ja/patent/US12703084B2"}}