Mobility improvement of a jumping robot using conical spring with variable length endtip

Ki Seok Kim, Byeong Sang Kim, Jae Bok Song, Chung Hyuk Yim

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)


Mobility is one of the most important features for a guard robot since it should be operated in rough places. A wheel-based mobile robot capable of jumping is an appropriate structure for a guard robot because it can easily satisfy the requirements for small guard robots. The jumping robot can reach a higher place more rapidly than other locomotion methods. This research proposes a small robot equipped with the jumping mechanism based on the conical spring with the variable length endtip. The variable length endtip enables the independent control of the jump force and jump angle which are related to the jump height and jump distance, respectively. Various experiments demonstrated that the proposed jumping mechanism can provide the independent control of jump force and jump angle, and improve the mobility of a small robot to overcome an obstacle. Furthermore, a combination of the jumping mechanism and the PSD sensor to measure the distance to the step enable the jumping robot to autonomously climb stairs.

Original languageEnglish
Pages (from-to)1108-1114
Number of pages7
JournalJournal of Institute of Control, Robotics and Systems
Issue number11
Publication statusPublished - 2009 Nov


  • Clutch mechanism
  • Conical spring
  • Jumping mechanism
  • Jumping robot
  • Nut-screw mechanism

ASJC Scopus subject areas

  • Software
  • Control and Systems Engineering
  • Applied Mathematics


Dive into the research topics of 'Mobility improvement of a jumping robot using conical spring with variable length endtip'. Together they form a unique fingerprint.

Cite this