EP 0818581 A1 19980114 - LINK DEVICE FOR HYDRAULIC SHOVEL
Title (en)
LINK DEVICE FOR HYDRAULIC SHOVEL
Title (de)
GELENK FÜR HYDRAULIKBAGGER
Title (fr)
ARTICULATION POUR PELLE HYDRAULIQUE
Publication
Application
Priority
- JP 9600826 W 19960328
- JP 10074895 A 19950330
Abstract (en)
The present invention relates to a link device for a hydraulic excavator which facilitates horizontal digging by the hydraulic excavator. To this end, the device comprises a power lever (19) having a first fulcrum rockably connected to a boom (2) by means of a boom pin (4), a second fulcrum rockably connected to a boom cylinder (5) by means of a boom head pin (18), and a third fulcrum to which an arm pin (20) is mounted; and a power rod (22) one end of which is connected to an arm power pin (21) attached to an arm (7), and the other end of which is connected to an arm pin (20). When the arm (7) is rocked by extending and contracting an arm cylinder (10), the boom (2) is swung vertically in operatively associated therewith, and the tip of a bucket (12) moves on a straight line. <IMAGE>
IPC 1-7
IPC 8 full level
CPC (source: EP KR)
E02F 3/302 (2013.01 - EP KR); E02F 3/32 (2013.01 - KR)
Designated contracting state (EPC)
BE DE FR GB IT
DOCDB simple family (publication)
WO 9630597 A1 19961003; EP 0818581 A1 19980114; EP 0818581 A4 19980701; JP 3369025 B2 20030120; JP H08269995 A 19961015; KR 19990007776 A 19990125
DOCDB simple family (application)
JP 9600826 W 19960328; EP 96907691 A 19960328; JP 10074895 A 19950330; KR 19970706733 A 19970926