EP 0949422 B1 20010919 - End-of-stroke cushioning device
Title (en)
End-of-stroke cushioning device
Title (de)
Endlagendämpfung
Title (fr)
Dispositif amortisseur de fin de course
Publication
Application
Priority
DE 29803739 U 19980304
Abstract (en)
[origin: US6047627A] A pressure medium driven device has a cylinder having a cylinder tube, means forming a discharge outlet for a pressure medium, a piston movable in the cylinder over a stroke having a stroke end which is dampened by a counter pressure generated by throttling the pressure medium within a dampening area prior to its dissipation into the discharge outlet, a piston ring held between the piston end the cylinder in the dampening area and used as a throttle, a dampening sleeve provided in the cylinder for guiding the piston into an end position, the piston ring extending under the action of internal tension beyond a piston diameter and expanding to a maximum internal diameter of a cone, the dampening sleeve having an internal cone causing a progressive dampening, the piston ring having a slit with a minimal width in the cylinder tube, the dampening sleeve being provided in the dampening area with radial boreholes which duct the pressure medium into longitudinal slots from which it reaches the discharge outlet.
IPC 1-7
IPC 8 full level
F15B 15/22 (2006.01); F16F 9/00 (2006.01); F16F 9/49 (2006.01)
CPC (source: EP US)
F15B 15/224 (2013.01 - EP US)
Designated contracting state (EPC)
AT DE FR GB IT NL
DOCDB simple family (publication)
US 6047627 A 20000411; AT E205916 T1 20011015; DE 29803739 U1 19980528; DE 59801513 D1 20011025; EP 0949422 A1 19991013; EP 0949422 B1 20010919; JP 3026802 B2 20000327; JP H11294414 A 19991026
DOCDB simple family (application)
US 23553299 A 19990122; AT 98123678 T 19981211; DE 29803739 U 19980304; DE 59801513 T 19981211; EP 98123678 A 19981211; JP 3758399 A 19990216