Invention Publication
EP4083334A1 WORK MACHINE
审中-公开
- Patent Title: WORK MACHINE
-
Application No.: EP20905996.3Application Date: 2020-12-24
-
Publication No.: EP4083334A1Publication Date: 2022-11-02
- Inventor: HORII, Hiroshi
- Applicant: KUBOTA CORPORATION
- Applicant Address: JP Osaka-shi, Osaka 5568601 1-2-47, Shikitsuhigashi, Naniwa-ku,
- Agency: Cabinet Beau de Loménie
- Priority: JP2019238288 20191227
- International Announcement: WO2021132431 20210701
- Main IPC: E02F3/43
- IPC: E02F3/43
Abstract:
A working machine (1) capable of bringing a distal end portion of a working tool into the vicinity of or into contact with a blade (7A) of a dozer (7) is provided.
A working machine includes a machine body (2), a dozer (7), a boom (31), an arm (41), a working tool (51), a boom cylinder (32), and an arm cylinder (42). The working machine also includes an arm crowd restricting unit (64) and a crowd restriction releasing unit (65). The arm crowd restricting unit (64) imposes a restriction on a stroke (S1) of the arm cylinder (42) in an arm crowd direction (D1) so that a swing track (M3) of a distal end portion of the working tool is spaced from the boom cylinder (32). The crowd restriction releasing unit (65) releases the restriction on the stroke (S1) of the arm cylinder (42) to enable the arm (41) to swing to an end of a swing range in the arm crowd direction (D1) when the boom (31) is at a swing position at which the working tool (51) in an operating position close to a working-tool dump position (Y2) is disposed in a vicinity of a blade (7A).
A working machine includes a machine body (2), a dozer (7), a boom (31), an arm (41), a working tool (51), a boom cylinder (32), and an arm cylinder (42). The working machine also includes an arm crowd restricting unit (64) and a crowd restriction releasing unit (65). The arm crowd restricting unit (64) imposes a restriction on a stroke (S1) of the arm cylinder (42) in an arm crowd direction (D1) so that a swing track (M3) of a distal end portion of the working tool is spaced from the boom cylinder (32). The crowd restriction releasing unit (65) releases the restriction on the stroke (S1) of the arm cylinder (42) to enable the arm (41) to swing to an end of a swing range in the arm crowd direction (D1) when the boom (31) is at a swing position at which the working tool (51) in an operating position close to a working-tool dump position (Y2) is disposed in a vicinity of a blade (7A).
Public/Granted literature
- EP4083334B1 WORKING MACHINE Public/Granted day:2024-08-07
Information query