Title:
建設機械の作業腕装置
Document Type and Number:
Japanese Patent JP7396840
Kind Code:
B2
Abstract:
To provide a work arm device capable of releasing impact by a relatively simple configuration.SOLUTION: A work arm device 2 comprises: an arm 4; a link piece 6 whose one end portion is connected with a tip side of the arm 4; a work tool 8 connected with the arm 4 further at the tip side of the arm 4 than the one end portion of the link piece 6; a work tool cylinder 10 whose one end portion is connected with a base end side of the arm 4 and the other end portion of which is connected with the other end portion of the link piece 6; and an impact absorbing cylinder 12 whose one end portion is connected with the other end portion of the link piece 6 and the other end portion of the work tool cylinder 10 and the other end portion of which is connected with the work tool 8. When an impact load over a predetermined value is applied to the work tool 8, the impact absorbing cylinder 12 is contracted to absorb the impact.SELECTED DRAWING: Figure 1
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| JP2002505188 | [Title of Invention] Screening apparatus |
Inventors:
Naoki Miyata
Hirokazu Koga
Toru Amaya
Tetsuya Koshima
Kota Tatsumi
Hiroya Ito
Hirokazu Koga
Toru Amaya
Tetsuya Koshima
Kota Tatsumi
Hiroya Ito
Application Number:
JP2019166557A
Publication Date:
December 12, 2023
Filing Date:
September 12, 2019
Export Citation:
Assignee:
Caterpillar S.A.R.L.
International Classes:
E02F3/40
Domestic Patent References:
| JP3018781U | ||||
| JP59066044U | ||||
| JP59056260U |
Attorney, Agent or Firm:
Atago Patent Attorneys Office
Sachiko Okunuki
Tsuyoshi Tsukano
Yoshifumi Kaneko
Sachiko Okunuki
Tsuyoshi Tsukano
Yoshifumi Kaneko