Patent application EP18169175A (EP), filed 2018-04-25
Publication number: EP3409843A1
Title: WORKING MACHINE
Abstract: To provide a working machine (10) including a lower travelling body (12) and an upper slewing body (14) disposed in a slewable manner with respect to the lower travelling body, the working machine being capable of more reliably preventing the upper slewing body from coming into contact with an obstacle existing around the working machine. The working machine includes a detection device (480), a position identification device (481), and a movement control device (442). The position identification device includes a calculation section (4811), a conversion section (4812), and an identification section (4813). The movement control device controls the movement of the upper slewing body in such a way as to prevent the upper slewing body from coming into contact with the obstacle based on the position of the obstacle relative to the virtual boundary surface, the position being identified by the identification section.
IPC codes: B60W  30/    00            A I
E02F   9/    12            A I
E02F   9/    20            A I
E02F   9/    24            A I
E02F   9/    26            A I
Claims: number: 1
text: A working machine, comprising:
number: 2
text: The working machine according to claim 1, wherein
the movement control device includes
number: 3
text: The working machine according to claim 2, wherein
the speed reduction control section reduces the movement speed of the upper slewing body at a greater rate as the shortest distance from the obstacle to the virtual boundary surface decreases.
number: 4
text: The working machine according to any one of claims 1 to 3, wherein
the movement control device includes
number: 5
text: The working machine according to any one of claims 1 to 4, wherein:
number: 6
text: The working machine according to any one of claims 1 to 4, wherein
the at least one detection device includes a plurality of detection devices disposed at respective positions different from each other on the upper slewing body.
number: 7
text: The working machine according to claim 6, wherein
the position identification device further includes a selection section configured to select an obstacle closest to the virtual boundary surface from among the plurality of obstacles based on a positional relationship between each of the plurality of obstacles and the virtual boundary surface, when the plurality of detection devices detect a plurality of obstacles; and
the movement control device controls the movement of the upper slewing body in such a way as to prevent the upper slewing body from coming into contact with the obstacle selected as being closest to the virtual boundary surface by the selection section, based on the positional relationship between the selected obstacle and the virtual boundary surface.
Office action: search_report, dated 2018-12-05
Rejection reasons: novelty_epc_54
Prior art cited: ref_id: JP2007023486A
ref_type: patent
severity: background
ref_id: US2017073935A1
ref_type: patent
severity: background
ref_id: EP2716821A1
ref_type: patent
severity: background
ref_id: EP2631374A1
ref_type: patent
severity: background
ref_id: EP2624552A1
ref_type: patent
severity: background
ref_id: JP2013253402A
ref_type: patent
severity: background
ref_id: EP2624552
ref_type: patent
severity: background
ref_id: EP2631374
ref_type: patent
severity: background
ref_id: JP2013253402
ref_type: patent
severity: background
ref_id: EP2716821
ref_type: patent
severity: novelty_destroying
ref_id: US2017073935
ref_type: patent
severity: novelty_destroying
Final disposition: pending (2018-12-05)