Title:
LUBRICATION PIPING ARRANGEMENT STRUCTURE IN CONSTRUCTION MACHINE
Document Type and Number:
Japanese Patent JP2020143539
Kind Code:
A
Abstract:
To provide a construction machine for which an arm, a work attachment, and an expansion cylinder are linked via a power link and an idler link, in which lubrication piping is arranged in the idler link so that the lubrication piping is protected and the structure of the idler link is not complicated.SOLUTION: An idler link 13 is provided with a protrusion 13d that protrudes in the direction of a reverse bucket 7 from a link body 13a of the idler link 13. A lubrication piping arrangement space 23 is provided on the laterally inner side of a laterally outer surface 13e of the protrusion 13d and extends in a link length direction. For The lubrication piping arrangement space 23, at least one of the reverse bucket 7 side and the laterally inner side opens. A lubrication pipe 22c is disposed in the lubrication piping arrangement space 23 so as to not protrude from a protrusion tip surface 13f of the protrusion 13d in the reverse bucket 7 direction and not protrude laterally and inward from a laterally inner link surface 13g of the link body 13a.SELECTED DRAWING: Figure 3
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Inventors:
MIYATA NAOKI
TATSUMI KOTA
KOGA HIROKAZU
AMAYA TORU
NISHIMOTO KAZUFUMI
KOSHIMA TETSUYA
ITO HIROYA
TATSUMI KOTA
KOGA HIROKAZU
AMAYA TORU
NISHIMOTO KAZUFUMI
KOSHIMA TETSUYA
ITO HIROYA
Application Number:
JP2019042209A
Publication Date:
September 10, 2020
Filing Date:
March 08, 2019
Export Citation:
Assignee:
CATERPILLAR SARL
International Classes:
E02F9/00
Domestic Patent References:
| JPH0653653U | 1994-07-22 | |||
| JPH08158402A | 1996-06-18 | |||
| JPH05202534A | 1993-08-10 | |||
| JPH0514250U | 1993-02-23 | |||
| JP2006132224A | 2006-05-25 |
Attorney, Agent or Firm:
Tetsuo Hirose
Suzuki Yuko
Hirose Ikuo
Suzuki Yuko
Hirose Ikuo