Global Patent Index - EP 4208299 A1

EP 4208299 A1 20230712 - IMPACT CYLINDER

Title (en)

IMPACT CYLINDER

Title (de)

SCHLAGZYLINDER

Title (fr)

CYLINDRE D'IMPACT

Publication

EP 4208299 A1 20230712 (DE)

Application

EP 21810944 A 20211109

Priority

  • DE 102020129424 A 20201109
  • EP 2021081080 W 20211109

Abstract (en)

[origin: WO2022096741A1] The invention relates to an impact cylinder, comprising; - a cylindrical piston casing (2), which peripherally surrounds an inner piston chamber (4); - a piston (14), which is disposed in the piston chamber (4) and can be moved longitudinally between a forward impact position and a rear idle position; - an anvil (40), which is slidably accommodated in a front impact-cylinder plate; - a compression spring (24), which is disposed between the anvil (40) and the piston (14); - a compressed-air accumulator (16); - a connection (10) for supplying a fluid; and - a control diaphragm (32) for selectively filling the compressed-air accumulator (16) and actuating the piston (14). According to the invention, in order to simplify the design, a sealing flange (18) is provided at a rear end of the piston casing (2), the compressed-air accumulator (16) is disposed behind the flange (18), and a supply pipe (28) is provided at a flange opening of the flange, which supply pipe extends from the flange opening to a posterior end of the compressed-air accumulator (16).

IPC 8 full level

B06B 1/18 (2006.01); B25D 9/16 (2006.01); F15B 15/14 (2006.01)

CPC (source: EP)

B25D 9/08 (2013.01); F28G 7/00 (2013.01); B06B 1/18 (2013.01)

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

Designated validation state (EPC)

KH MA MD TN

DOCDB simple family (publication)

WO 2022096741 A1 20220512; DE 102020129424 A1 20220512; DE 102020129424 B4 20240620; EP 4208299 A1 20230712; EP 4208299 B1 20240619

DOCDB simple family (application)

EP 2021081080 W 20211109; DE 102020129424 A 20201109; EP 21810944 A 20211109