EP 1623950 B1 20061115 - Crapple assembly for a hydraulic arm of an working vehicle
Title (en)
Crapple assembly for a hydraulic arm of an working vehicle
Title (de)
Greifer für einen hydraulischen Ausleger eines Arbeitsfahrzeuges
Title (fr)
Grappin pour un bras hydraulique d'un véhicule de travail
Publication
Application
Priority
EP 04018326 A 20040803
Abstract (en)
[origin: EP1623950A1] A clamping device for an hydraulic arm of a working vehicle to seize and manipulate an object, of the type connectable to the end of an articulated arm of a working vehicle by means of connecting means through a hydraulic oil supply and electrical current. characterized in that said clamping device includes: a) an arm (B); b) a forearm (AB) articulated to the first arm by means of lateral hinging (12), said forearm being inclinable up to 90° by means of an internal oleodynamic cylinder (49); c) a clamping jaw unit (GP) articulated outside the end of said forearm (AB) and involving three jaws (20a,20b,20c) with respective operating oleodynamic cylinders (14); d) said arm (B) involving a first rotational device (DR1) with first fluid motor (9) that transmits the external tangential continuous screw motion (7) geared on the crown gear (56) of said arm (B), in order to rotate said rotating internal box (46) with respect to the respective connecting means to the articulated arm of the working vehicle; e) said forearm (AB) comprising a second rotational means (DR2) to rotate said clamping jaw unit (GP) with respect to said forearm (AB) by means of a second internal fluid motor (42) and an axial reducer (15); f) a first and a second electrovalve (11,17) to operate the respective double two way oleodynamic movement members of said arm (B). the first fluid motor (9), the internal angulation hydraulic cylinder (49) and the three hydraulic cylinders (14) to operate the clamping jaws (20a,20b,20c), said hydraulic cylinders (14) being operated by a second fluid motor (42) in connection with a third electrovalve (43), and g) first and second brush electric switches for a rotating contact (SW1,SW2) for said second electrovalve (17) and the third electrovalve (43).
IPC 8 full level
B66C 1/44 (2006.01); B66C 3/00 (2006.01); E02F 3/96 (2006.01)
CPC (source: EP)
B66C 1/447 (2013.01); B66C 1/58 (2013.01); E02F 3/965 (2013.01)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
EP 1623950 A1 20060208; EP 1623950 B1 20061115; AT E345306 T1 20061215; DE 602004003237 D1 20061228; DE 602004003237 T2 20070621; ES 2277176 T3 20070701; SI 1623950 T1 20070430
DOCDB simple family (application)
EP 04018326 A 20040803; AT 04018326 T 20040803; DE 602004003237 T 20040803; ES 04018326 T 20040803; SI 200430181 T 20040803