EP 0520178 B1 19951004 - Gripper.
Title (en)
Gripper.
Title (de)
Greifer.
Title (fr)
Grappin.
Publication
Application
Priority
DE 4120888 A 19910625
Abstract (en)
[origin: EP0520178A1] The invention relates to a gripper for picking up loads, in particular by frictional engagement. The crane hook lug (2) of the gripper acts on a pull frame (1), the bottom transverse web (3) of which carries one or more first pneumatic or hydraulic piston/cylinder units (4), the pistons (4a) of which are supported on the top transverse web (5) of a stirrup (6) which can be displaced relative to the pull frame (1) and continues in gripping jaws (8) which define a load-receiving opening (9), and arranged in one of the two gripping jaws (8) is a piston (10a), crossing the load-receiving opening, of a second piston/cylinder unit (10) which is connected on the pressure-medium side to the first piston/cylinder unit (4) by a line (11), the positions of the pistons (4a) of the first piston/cylinder unit (4) and of the second piston/cylinder unit (10) being set by appropriate filling quantities of pressure medium in the entire system in such a way that the piston (10a) of the second piston/cylinder unit (10) crosses the load-receiving opening (9) to close it before the piston or pistons (4a) of the first piston/cylinder unit (4) have reached their end position sunken in the cylinders (4b). <IMAGE>
IPC 1-7
IPC 8 full level
B66C 1/48 (2006.01)
CPC (source: EP)
B66C 1/48 (2013.01)
Designated contracting state (EPC)
AT BE CH DE FR GB IT LI NL
DOCDB simple family (publication)
EP 0520178 A1 19921230; EP 0520178 B1 19951004; AT E128696 T1 19951015; DE 4120888 A1 19930107; DE 59203880 D1 19951109
DOCDB simple family (application)
EP 92108187 A 19920515; AT 92108187 T 19920515; DE 4120888 A 19910625; DE 59203880 T 19920515