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1994 Fiscal Year Final Research Report Summary

Development of a remoto-controlled brush cutter mounted on a vehicle

Research Project

Project/Area Number 04556017
Research Category

Grant-in-Aid for Developmental Scientific Research (B)

Allocation TypeSingle-year Grants
Research Field 林学
Research InstitutionIwate University

Principal Investigator

SHISHIUCHI Masao  Iwate Univ., Fac.of Agric., Prof., 農学部, 教授 (10003782)

Co-Investigator(Kenkyū-buntansha) OIKAWA Ryoichirou  Forestry Techniques Research Institute in TOYOMA, Director, 所長
TATSUKAWA Shirou  Iwate Univ., Fac.of Agric., Lecture, 農学部, 講師 (70142891)
SAKAI Hideo  Univ.of Tokyo, Fac.of Agric., Associ.Prof., 農学部, 助教授 (70126069)
GOTOU Junichi  Kochi Univ., Fac.of Agric., Associ.Prof., 農学部, 助教授 (90127928)
Project Period (FY) 1992 – 1994
Keywordsradio control / appendant apparatus for generating soil hrust / gradability / stability / ability to get over obstacles / 障害物回避
Research Abstract

Backgroud In Japan, planting areas are usually covered with weeds, because of abundant precipitation and fertile forest-land. Weeding operations in several years after planting are needed for making productive forests. Now, weeds in planting areas are usually slashed by hand brush-cutters. A development of productive and low cost weeding machine is desired, because labor intensity is very high in weeding operations by hand brush-cutters especially on Japanese forest conditions of steep slope.
Concept in design Mechanical structure : 1.Self-propelled base machine with flexible gum-tracks. 2.Rotary cutter which can get over obstacles. 3.Radio-controlled operations from the ground. Performance : 1.Gradablity ; 50 degree. 2.Getable over obstacles ; 40 cm. 3.Ground pressure of tracks ; less than 0.5kg/cm^2.4.Maximum cutting width ; 1.8 m.
New mechanism Two new mechanisms were took in the machine, a piece of appendant apparatus to increase gradability and stability and rotary cutters which can get over obstacles. The appendant apparatus can generate more soil thrusts which assist gradability of a base machine by using shear strength of soil, and can prevent weight-transfer in steep slope. The suspension of rotary cutter is a link structure which can rift the cutter by using reaction of shock to obstacles.
Outlines of the machine 1.Total weight ; about 1 t. 2.Length*Width*Height ; 3.5m*1.4m*1.0m. 3.Engine power ; 30 PS.
Performance of the machine 1.Cutting speed ; 1m/s. 2.Gradability ; 45 degree. 3.Maximum obstacle height which the machine can get over ; 40cm.

  • Research Products

    (4 results)

All Other

All Publications (4 results)

  • [Publications] 猪内正雄: "自走式刈払機の試作に関する研究(I)-林地表面および刈払い植生の条件-" 第104回日本林学会大会発表要旨集. 290- (1993)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 猪内正雄: "自走式刈払機の試作に関する研究(II)-設計仕様決定のための基礎実験-" 第105回日本林学会大会発表要旨集. 241- (1994)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 猪内正雄: "自走式刈払機の試作に関する研究(III)-試作機の性能-" 第106回日本林学会大会発表要旨集. (1995)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Masao Shishiuchi, Hideo Sakai, Jun'ichi Gotou and Ryoichiro Oikawa: "Development of a self-propelled weed-cutter" Proceedings of IUFROXX World Congress. (1995)

    • Description
      「研究成果報告書概要(欧文)」より

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Published: 1996-04-15  

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