EP 4283045 A1 20231129 - ROAD PAVING MACHINE
Title (en)
ROAD PAVING MACHINE
Title (de)
STRASSENFERTIGER
Title (fr)
FINISSEUR DE ROUTES
Publication
Application
Priority
JP 2022084807 A 20220524
Abstract (en)
Provided is a road machine (100) that can level a paving material (PV) such that a thickness of the paving material (PV) differs in a vehicle width direction. An asphalt finisher (100) that is an example of the road machine (100) includes a tractor (1) that travels on a roadbed (BC), a hopper (2) that receives the paving material (PV), a conveyor (CV) that feeds the paving material (PV) in the hopper (2) to a rear of the tractor (1), a screw (SC) that spreads the paving material (PV) fed by the conveyor (CV) at the rear of the tractor (1), a screed (3) that levels the paving material (PV) spread by the screw (SC) at a rear of the screw (SC), and a controller (50) that derives a first height (HL) and a second height (HR) of the screed (3) with respect to the roadbed (BC). The first height (HL) is a height of a first point (SPL) in the screed (3), the second height (HR) is a height of a second point (SPR) in the screed (3), and the first point (SPL) is at a position different from a position of the second point (SPR) in a vehicle width direction.
IPC 8 full level
E01C 19/48 (2006.01); E01C 19/00 (2006.01); E01C 23/07 (2006.01)
CPC (source: CN EP)
E01C 19/004 (2013.01 - EP); E01C 19/48 (2013.01 - EP); E01C 19/4866 (2013.01 - CN); E01C 23/07 (2013.01 - EP); E01C 2301/14 (2013.01 - EP)
Citation (applicant)
Citation (search report)
- [XAYI] US 11242658 B2 20220208 - KAPPEL MARC [DE], et al
- [Y] US 5393167 A 19950228 - FUJITA MAKIO [JP], et al
- [A] JP 5602452 B2 20141008
- [A] US 9200415 B2 20151201 - GRAHAM LUKE E [US], et al
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC ME MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA
Designated validation state (EPC)
KH MA MD TN
DOCDB simple family (publication)
EP 4283045 A1 20231129; CN 117107592 A 20231124; JP 2023172766 A 20231206
DOCDB simple family (application)
EP 23168263 A 20230417; CN 202310467968 A 20230427; JP 2022084807 A 20220524