EP 3109008 A1 20161228 - MAGNETIC DRILL PRESS WITH ALTERNATE POWER SOURCE
Title (en)
MAGNETIC DRILL PRESS WITH ALTERNATE POWER SOURCE
Title (de)
MAGNETISCHER BOHRSTÄNDER MIT ALTERNIERENDER ENERGIEQUELLE
Title (fr)
PRESSE DE FORAGE MAGNÉTIQUE AVEC SOURCE DE PUISSANCE ALTERNATIVE
Publication
Application
Priority
EP 15173710 A 20150624
Abstract (en)
A magnetic drill (10) is provided with an alternate power source (36). The drill (10) comprises: an electric motor (32) for driving a tool; a controller (33) configured to receive an AC input signal and operable to control a drive signal to the electric motor (32); an electromagnet (28) arranged in a base (24) of the drill housing and operable, in response to a DC voltage, to magnetically couple the base to a surface proximate to the base (24); an AC/DC converter (34) configured to receive the AC input signal and operates, independent from the controller (33) and in the presence of the AC input signal, to output a DC voltage to the electromagnet (28); and an alternate power source circuit that monitors the DC voltage output by the converter (34) and, in the absence thereof, provides an alternate DC voltage to the electromagnet (28).
IPC 8 full level
B25H 1/00 (2006.01)
CPC (source: EP)
B25H 1/0071 (2013.01); B25H 1/0078 (2013.01)
Citation (search report)
- [XI] EP 1967305 A1 20080910 - NITTO KOHKI CO [JP]
- [A] US 2009028653 A1 20090129 - WILBERT EDWARD D [US], et al
- [A] GB 2241618 A 19910904 - NITTO KOHKI CO [JP]
- [A] EP 2127790 A1 20091202 - NITTO KOHKI CO [JP]
- [A] US 6072675 A 20000606 - MURAKAMI KEIICHI [JP], et al
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)
DOCDB simple family (application)
EP 15173710 A 20150624