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Studies of Cherry Harvesting by Shaking Small Limbs

Research Project

Project/Area Number 07660336
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field 農業機械学
Research InstitutionYamagata University

Principal Investigator

AKASE Akira  Yamagata University, Faculty of Agriculture, Professor, 農学部, 教授 (30007075)

Co-Investigator(Kenkyū-buntansha) KAMIDE Jun-ichi  Yamagata University, Faculty of Agriculture, Professor, 農学部, 教授 (20007082)
Project Period (FY) 1995 – 1996
Project Status Completed (Fiscal Year 1996)
Budget Amount *help
¥2,100,000 (Direct Cost: ¥2,100,000)
Fiscal Year 1996: ¥400,000 (Direct Cost: ¥400,000)
Fiscal Year 1995: ¥1,700,000 (Direct Cost: ¥1,700,000)
Keywordsprocess-cherry / small shaker / small limb / vibrational conditions / pull detachment force / detachment time / clamp / field test / 加工用さくらんぼ / 機械収穫 / ストローク / 落果率 / 果梗付き率 / 着色加工
Research Abstract

Process-cherry production in Japan is about 4,000t/year. All of these are harvested by hand picking. Because of the problem of shortage of laborers, a mechanical harvesting has been desired.
In 1994, we tried to harvest cherry fruits by shaking small limbs of cherry trees using commercial Japanese apricot shakers. Then many stalkless fruits were induced.
In 1995, we modified the shaker so that it may generate a larger stroke (8cm) and field test was conducted. The results obtained showed that the fruits harvesting percentage was high and most of the dropped fruits were with their stalks. The products, obtained by processing immediatly after harvesting, were with little damage.
In 1996, we transfered a large stroke generating case to the bottom of the boom and set the clamp instead of the hook at the tip of the boom, thereby a single man could perform harvesting operations consistently.
In field test, it was found that a mechanical harvesting should be done in pre-stage of maturity, the vibration generated by the shaker could hardly be transmitted to the slender limb and the bark hardly was damaged during the harvesting operations.
A vibrating test and a pulling test were carried out in order to investigate the detachable properties of cherry fruits. In the vibrating test with 6 to 8 cm of stroke, fruits with stalk were obtained. But the stalkless fruits were resulted from the system which had many fruits and leaves per the spur. In the pulling test, the detachment force between spur and stalk (SS force) was lower than that between stalk and fruit (SF force), as the fruit mass was smaller. But when the mass became larger, SF force was about one third of SS force. As a cherry fruit was pulled in the opposite direction of stalk, the detachment force became extremely low.
By improving the pruning and training methods of branches and the methods of cultivation, the vibrational process-cherry harvesting will be able to be used practically.

Report

(3 results)
  • 1996 Annual Research Report   Final Research Report Summary
  • 1995 Annual Research Report
  • Research Products

    (12 results)

All Other

All Publications (12 results)

  • [Publications] 赤瀬 章: "小枝を対象としたさくらんぼの振動収穫" 農作業研究. 30・2. 102-110 (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] 赤瀬 章: "試作オウトウシェ-カによるほ場試験" 農業機械学会東北支部報. 43. 39-42 (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] 赤瀬 章: "オウトウ果実の脱離特性" 農業機械学会東北支部報. 43. 43-48 (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] 赤瀬 章: "小枝を対象としたオウトウシェ-カの開発(第1報)-シェ-カの改良とほ場試験-" 農業機械学会誌. 50・1. 99-107 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] Akira Akase, Jun-ichi Kamide, Takanori Yamamoto, Seiji Honma and Tadshi Niki: "Cherry Harvesting by Shaking Small Branches-Use of Japanese Apricot Shakers-" Japanese Journal of Farm Work Research. 30(2). 102-110 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] Akira Akase, Hiroshi Suzuki, Jun-ichi Kamide, Yousuke Takagi: "Harvesting Tests with a Prototype Cherry Shaker" Tohoku Branch Report of The Japanese Society of Agricultural Machinery. 43. 39-42 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] Akira Akase, Hiroshi Suzuki, Jun-ichi Kamide, Yousuke Takagi: "Mechanical Properties of Detaching Cherry Fruits" Tohoku Branch Report of The Japanese Society of Agricultural Machinery. 43. 43-48 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] Akira Akase, Jun-ichi Kamide: "Development of Small Limb Shakers for Cherry (part 1) -Improvement of the Shaker and its Field Test-" Journal of the JAPANESE SOCIETY of AGRICULTURAL MACHINERY. 59(1). 99-107 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] 赤瀬章: "小枝を対象としたさくらんぼの振動収穫" 農作業研究. 30・2. 102-110 (1995)

    • Related Report
      1996 Annual Research Report
  • [Publications] 赤瀬章: "試作オウトウシェ-カによるほ場試験" 農業機械学会東北支部報. 43. 39-42 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] 赤瀬章: "オウトウ果実の脱離特性" 農業機械学会東北支部報. 43. 43-48 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] 赤瀬章: "小枝を対象としたオウトウシェ-カの開発(第1報)-シェ-カの改良とほ場試験-" 農業機械学会誌. 59・1. 99-107 (1997)

    • Related Report
      1996 Annual Research Report

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Published: 1995-04-01   Modified: 2016-04-21  

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