EP 0739691 A1 19961030 - Apparatus for adjusting the stroke of a fluid-actuated percussion device
Title (en)
Apparatus for adjusting the stroke of a fluid-actuated percussion device
Title (de)
Einrichtung zum Verstellen des Hubes von fluidgesteuerten Schlageinrichtungen
Title (fr)
Appareil pour le réglage de la course de frappe d'un appareil à percussion mû par un fluide
Publication
Application
Priority
AT 73195 A 19950427
Abstract (en)
A medium under pressure acts on the plunger (8), which works with control drillings or channels at intervals in its axial direction. These work with control edges on the piston (1) of the mechanism, alternately connecting working chambers for the piston to the pressure and return pipes. The plunger can be coupled to a rotary setting member (17). When rotated into one position, the plunger slides axially under the pressure of the medium and against spring action. It cannot slide in any other position. The plunger can have drillings or channels offset in the axial and peripheral directions. With the plunger so coupled to the member so that it cannot slide, the control drillings or channels can be connected to the control edges on the piston.
Abstract (de)
Die Einrichtung zum Verstellen des Hubes von fluidgesteuerten Schlageinrichtungen weist einen mit Fluid beaufschlagten Steuerkolben (8) auf. Der Steuerkolben (8) ist mit einem drehbaren Stellglied (17) drehschlüssig kuppelbar und in einer Drehlage entgegen der Kraft einer Feder (22) durch den Fluiddruck axial verschiebbar. In anderen Drehlagen ist eine axiale Verschiebung, beispielsweise durch den in einer Ringnut geführten Bolzen (20) verhindert. <IMAGE>
IPC 1-7
IPC 8 full level
CPC (source: EP)
B25D 9/26 (2013.01)
Citation (search report)
- [AD] DE 3115361 A1 19821028 - HYDROC GMBH [DE]
- [A] CH 597500 A5 19780414 - LINDEN ALIMAK AB
- [A] DE 2244769 A1 19740321 - SALZGITTER MASCHINEN AG
Designated contracting state (EPC)
CH DE FI FR GB LI SE
DOCDB simple family (publication)
EP 0739691 A1 19961030; EP 0739691 B1 20000308; AT 407280 B 20010226; AT A73195 A 20000615; DE 59604569 D1 20000413
DOCDB simple family (application)
EP 96890077 A 19960424; AT 73195 A 19950427; DE 59604569 T 19960424