EP 4182124 A1 20230524 - HAND-HELD POWER TOOL, TOOL AND HAND-HELD POWER TOOL SYSTEM WITH A DETERMINED SPEED/IMPACT POWER RATIO
Title (en)
HAND-HELD POWER TOOL, TOOL AND HAND-HELD POWER TOOL SYSTEM WITH A DETERMINED SPEED/IMPACT POWER RATIO
Title (de)
HANDWERKZEUGMASCHINE, WERKZEUG UND HANDWERKZEUGMASCHINENSYSTEM MIT BESTIMMTEM DREHZAHL-SCHLAGLEISTUNGS-VERHÄLTNIS
Title (fr)
OUTIL ÉLECTRIQUE PORTATIF, OUTIL ET SYSTÈME D'OUTIL ÉLECTRIQUE PORTATIF AYANT UN RAPPORT VITESSE/FORCE D'IMPACT DÉTERMINÉ
Publication
Application
Priority
- EP 20186380 A 20200717
- EP 2021054287 W 20210222
- EP 19192219 A 20190819
- EP 19193854 A 20190827
- EP 19195363 A 20190904
Abstract (en)
[origin: WO2022012785A1] The invention relates to a hand-held power tool (12), in particular a hammer drill, comprising a tool holder (16), a striking mechanism (32) and a rotary drive (34), wherein the hand-held power tool (12) is designed to rotate a tool (18) accommodated in the tool holder (16) about a longitudinal axis (L) of the tool (18) at a rotational speed n and to drive same along the longitudinal axis (L) with a striking movement at a stroke frequency f, wherein the striking mechanism (32) is designed as a direct electromechanical, electro-pneumatic or electromagnetic striking mechanism. The hand-held power tool is characterised in that the ratio of the rotational speed n to the striking frequency f, at least at a working point of the hand-held power tool (12), is max. 5.0 U/Min./Hz, or, at least at the working point of the hand-held power tool (12), the rotational speed n is max. (0,2*(f/Hz-22)^2+80) U/Min according to the striking frequency f, in particular for striking frequencies f in the region of 20 to 60 Hz. The invention also relates to a tool (18) and a hand-held tool system (10). It allows for a particularly effective and efficient processing of e.g. rocks.
IPC 8 full level
B25D 16/00 (2006.01); B25D 11/00 (2006.01)
CPC (source: EP US)
B23B 51/00 (2013.01 - EP US); B25D 11/00 (2013.01 - EP); B25D 11/06 (2013.01 - US); B25D 16/00 (2013.01 - EP US); B25D 17/02 (2013.01 - EP US); B25D 17/22 (2013.01 - US); B23B 2226/75 (2013.01 - EP); B23B 2251/68 (2013.01 - EP); B25D 2211/06 (2013.01 - US); B25D 2216/0023 (2013.01 - EP); B25D 2216/003 (2013.01 - EP US); B25D 2217/0003 (2013.01 - EP US); B25D 2250/095 (2013.01 - US); B25D 2250/181 (2013.01 - US); B25D 2250/201 (2013.01 - EP US)
Citation (search report)
See references of WO 2022012786A1
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)
EP 3845340 A1 20210707; EP 3854532 A1 20210728; EP 4182123 A1 20230524; EP 4182124 A1 20230524; US 2023278182 A1 20230907; US 2023311289 A1 20231005; WO 2022012785 A1 20220120; WO 2022012786 A1 20220120
DOCDB simple family (application)
EP 20186377 A 20200717; EP 20186380 A 20200717; EP 2021054285 W 20210222; EP 2021054287 W 20210222; EP 21705567 A 20210222; EP 21705568 A 20210222; US 202118005427 A 20210222; US 202118014100 A 20210222