Passive walking-assistance device operated by regenerating the potential energy of the upper body

Yasuyuki Yamada, Toshio Morita

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

Although the environmental adaptability of walking is very high, its efficiency is poor because of the deadweight torque that supports the body weight. In particular, this torque places a substantial load on the leg muscles of workers that carry heavy objects or stand for long durations. Most research on methods for assisting deadweight torque with machines focuses on those that use electricity to implement both interlocking and assistive power. Our research focused on the development of a lightweight assistive device powered solely by the recovery of the potential energy of the upper body that is lost while walking. This system uses surge tanks, three-way valves, and other features in a simple configuration. In addition, the system is interlocked with walking by switching between assisting the swing leg and assisting the contact leg using a simple sensing system. This paper examines the theoretical basis for the potential energy regeneration system and presents the results of tests using a prototype worn by walkers at speeds of 2-5 km/h.

Original languageEnglish
Title of host publication2012 International Conference onAdvanced Mechatronic Systems, ICAMechS 2012
Pages286-291
Number of pages6
Publication statusPublished - 2012 Nov 27
Event2012 International Conference onAdvanced Mechatronic Systems, ICAMechS 2012 - Tokyo, Japan
Duration: 2012 Sep 182012 Sep 21

Publication series

Name2012 International Conference onAdvanced Mechatronic Systems, ICAMechS 2012

Other

Other2012 International Conference onAdvanced Mechatronic Systems, ICAMechS 2012
CountryJapan
CityTokyo
Period12/9/1812/9/21

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Mechanical Engineering

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  • Cite this

    Yamada, Y., & Morita, T. (2012). Passive walking-assistance device operated by regenerating the potential energy of the upper body. In 2012 International Conference onAdvanced Mechatronic Systems, ICAMechS 2012 (pp. 286-291). [6329725] (2012 International Conference onAdvanced Mechatronic Systems, ICAMechS 2012).