Study on trunk posture support device utilizing variable stiffness characteristics by pneumatic soft actuator

Kyphosis causes decline in respiratory and circulatory functions owing to compresses of internal organs. The purpose of this study is to develop a posture keep assist device. The device is constructed with multiple resin components and McKibben type artificial rubber muscle. This device at initial s...

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Main Authors: Hayato YASE, Daisuke SASAKI, Jun KADOWAKI, Takumi YASUHARA
Format: Article
Language:Japanese
Published: The Japan Society of Mechanical Engineers 2021-05-01
Series:Nihon Kikai Gakkai ronbunshu
Subjects:
Online Access:https://www.jstage.jst.go.jp/article/transjsme/87/898/87_20-00173/_pdf/-char/en
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author Hayato YASE
Daisuke SASAKI
Jun KADOWAKI
Takumi YASUHARA
author_facet Hayato YASE
Daisuke SASAKI
Jun KADOWAKI
Takumi YASUHARA
author_sort Hayato YASE
collection DOAJ
description Kyphosis causes decline in respiratory and circulatory functions owing to compresses of internal organs. The purpose of this study is to develop a posture keep assist device. The device is constructed with multiple resin components and McKibben type artificial rubber muscle. This device at initial state has a flexibility because the resin components are separated. On the other hand, the resin component can be connected by pressurized artificial muscle. The shape of device in which all resin components are connected imitates spine-curve to fit human back. So, the proposed device can retain entire range of trunk. Target pressure to correct posture is determined from the mathematical model of artificial muscle. In this paper, the structure of device is described, and control method to retain posture based on artificial muscle model is discussed. Finally, effectiveness of the device is verified from experiments in which subject wears this device actually. We reveal correcting trunk posture by using the device from the results.
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spelling doaj.art-c0de7960c14d4c67a1c5b7097ef251082022-12-22T03:41:40ZjpnThe Japan Society of Mechanical EngineersNihon Kikai Gakkai ronbunshu2187-97612021-05-018789820-0017320-0017310.1299/transjsme.20-00173transjsmeStudy on trunk posture support device utilizing variable stiffness characteristics by pneumatic soft actuatorHayato YASE0Daisuke SASAKI1Jun KADOWAKI2Takumi YASUHARA3Graduate School of Engineering, Kagawa UniversityFaculty of Engineering and Design, Kagawa UniversityGraduate School of Engineering, Kagawa UniversityKyowa FineTech. Co.,Ltd.Kyphosis causes decline in respiratory and circulatory functions owing to compresses of internal organs. The purpose of this study is to develop a posture keep assist device. The device is constructed with multiple resin components and McKibben type artificial rubber muscle. This device at initial state has a flexibility because the resin components are separated. On the other hand, the resin component can be connected by pressurized artificial muscle. The shape of device in which all resin components are connected imitates spine-curve to fit human back. So, the proposed device can retain entire range of trunk. Target pressure to correct posture is determined from the mathematical model of artificial muscle. In this paper, the structure of device is described, and control method to retain posture based on artificial muscle model is discussed. Finally, effectiveness of the device is verified from experiments in which subject wears this device actually. We reveal correcting trunk posture by using the device from the results.https://www.jstage.jst.go.jp/article/transjsme/87/898/87_20-00173/_pdf/-char/enpneumaticsoft actuatorartificial musclewearable devicepostural keep assist
spellingShingle Hayato YASE
Daisuke SASAKI
Jun KADOWAKI
Takumi YASUHARA
Study on trunk posture support device utilizing variable stiffness characteristics by pneumatic soft actuator
Nihon Kikai Gakkai ronbunshu
pneumatic
soft actuator
artificial muscle
wearable device
postural keep assist
title Study on trunk posture support device utilizing variable stiffness characteristics by pneumatic soft actuator
title_full Study on trunk posture support device utilizing variable stiffness characteristics by pneumatic soft actuator
title_fullStr Study on trunk posture support device utilizing variable stiffness characteristics by pneumatic soft actuator
title_full_unstemmed Study on trunk posture support device utilizing variable stiffness characteristics by pneumatic soft actuator
title_short Study on trunk posture support device utilizing variable stiffness characteristics by pneumatic soft actuator
title_sort study on trunk posture support device utilizing variable stiffness characteristics by pneumatic soft actuator
topic pneumatic
soft actuator
artificial muscle
wearable device
postural keep assist
url https://www.jstage.jst.go.jp/article/transjsme/87/898/87_20-00173/_pdf/-char/en
work_keys_str_mv AT hayatoyase studyontrunkposturesupportdeviceutilizingvariablestiffnesscharacteristicsbypneumaticsoftactuator
AT daisukesasaki studyontrunkposturesupportdeviceutilizingvariablestiffnesscharacteristicsbypneumaticsoftactuator
AT junkadowaki studyontrunkposturesupportdeviceutilizingvariablestiffnesscharacteristicsbypneumaticsoftactuator
AT takumiyasuhara studyontrunkposturesupportdeviceutilizingvariablestiffnesscharacteristicsbypneumaticsoftactuator