Global Patent Index - EP 3233382 A1

EP 3233382 A1 2017-10-25 - HAND-HELD POWER TOOL

Title (en)

HAND-HELD POWER TOOL

Title (de)

HANDWERKZEUGMASCHINE

Title (fr)

MACHINE-OUTIL PORTATIVE

Publication

EP 3233382 A1 (DE)

Application

EP 15817157 A

Priority

  • EP 14198722 A
  • EP 2015079698 W

Abstract (en)

[origin: WO2016096791A1] The power tool has a tool holder (2) for holding a chiselling tool on a working axis (11), a motor (5), and a pneumatic percussion mechanism (6) driven by the motor (5). The percussion mechanism (6) has a percussion element (14) guided on the working axis (11) and provided with a percussion surface (23) pointing in the percussion direction (12), an exciter piston (13) driven by the motor (5), and a pneumatic chamber (18) formed between the exciter piston (13) and the percussion element (14) for coupling the percussion element (14) to the movement of the exciter piston (13). The percussion element (14) has a first partial body (35) forming the percussion surface (23), a second partial body (34), and a spring element (33). The first partial body (35) is moveable along the working axis (11) relative to the second partial body (35). The second partial body (34) has an abutment surface (37) pointing in the percussion direction (12). The first partial body (35) has an impact surface (36) opposite the abutment surface (37) for receiving an impact of the second partial body (34) on the first partial body (35). The spring element (33) drives the first partial body (35) relative to the second partial body (34) in the percussion direction (12) into a starting position, in which the abutment surface (37) is separated from the impact surface (36) by a gap (32).

IPC 8 full level (invention and additional information)

B25D 11/12 (2006.01); B25D 17/06 (2006.01)

CPC (invention and additional information)

B25D 17/06 (2013.01); B25D 11/125 (2013.01); B25D 2217/0023 (2013.01); B25D 2250/345 (2013.01); B25D 2250/371 (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

EPO simple patent family

EP 3034242 A1 20160622; CN 107107321 A 20170829; EP 3233382 A1 20171025; WO 2016096791 A1 20160623

INPADOC legal status


2017-10-25 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20170718

2017-10-25 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): 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

2017-10-25 [AV] REQUEST FOR VALIDATION OF THE EUROPEAN PATENT IN

- Countries: MA MD

2017-10-25 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO

- Countries: BA ME