EP 3178997 A3 20170906 - VENTILEINHEIT FÜR SCHNELLWECHSLER SOWIE SCHNELLWECHSELSYSTEM
Title (en)
VENTILEINHEIT FÜR SCHNELLWECHSLER SOWIE SCHNELLWECHSELSYSTEM
Title (de)
VENTILEINHEIT FÜR SCHNELLWECHSLER SOWIE SCHNELLWECHSELSYSTEM
Title (fr)
VENTILEINHEIT FÜR SCHNELLWECHSLER SOWIE SCHNELLWECHSELSYSTEM
Publication
Application
Priority
DE 102015015809 A 20151207
Abstract (en)
[origin: US2017159263A1] The invention relates to a valve unit for the exclusive hydraulic actuation of the locking means of a mechanical quick-changer for attachments of a construction machine, wherein the valve unit comprises a feed pressure connector for applying the feed pressure, a first valve unit outlet for connecting an unlocking pressure line, a second valve unit outlet for connecting a locking pressure line, at least one discharge to the tank, and at least two switchable directional valves, with the feed pressure connector being connected or connectable to the second valve unit outlet via a serial connection of the at least two switchable directional valves.
IPC 8 full level
E02F 3/36 (2006.01); F15B 1/02 (2006.01); F15B 20/00 (2006.01); E02F 9/22 (2006.01)
CPC (source: EP US)
E02F 3/3663 (2013.01 - EP US); E02F 3/3686 (2013.01 - EP US); E02F 3/369 (2013.01 - US); E02F 3/382 (2013.01 - US); E02F 9/2217 (2013.01 - EP US); F15B 1/022 (2013.01 - EP US); F15B 2211/212 (2013.01 - EP US); F15B 2211/30515 (2013.01 - EP US); F15B 2211/30565 (2013.01 - EP US); F15B 2211/40507 (2013.01 - EP US); F15B 2211/41509 (2013.01 - EP US); F15B 2211/50554 (2013.01 - EP US); F15B 2211/50563 (2013.01 - EP US); F15B 2211/5151 (2013.01 - EP US); F15B 2211/5153 (2013.01 - EP US); F15B 2211/8633 (2013.01 - EP US)
Citation (search report)
- [X] DE 19548943 A1 19970703 - REXROTH MANNESMANN GMBH [DE]
- [X] JP 2015200104 A 20151112 - CATERPILLAR SARL & US 2017030047 A1 20170202 - YOKOTA KENICHI [JP], et al
- [X] DE 202008015191 U1 20090226 - GERHARD HENLE BESITZUNTERNEHME [DE]
- [X] DE 102014200469 A1 20150716 - BOSCH GMBH ROBERT [DE]
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 MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
EP 3178997 A2 20170614; EP 3178997 A3 20170906; EP 3178997 B1 20190821; DE 102015015809 A1 20170608; US 10214873 B2 20190226; US 2017159263 A1 20170608
DOCDB simple family (application)
EP 16193639 A 20161013; DE 102015015809 A 20151207; US 201615371287 A 20161207