EP 3169485 A1 20170524 - FRICTION BEARING BETWEEN ROTOR AND ANVIL IN AN IMPACT WRENCH
Title (en)
FRICTION BEARING BETWEEN ROTOR AND ANVIL IN AN IMPACT WRENCH
Title (de)
REIBLAGER ZWISCHEN LÄUFER UND AMBOSS IN EINEM SCHLAGSCHRAUBER
Title (fr)
PALIER À FRICTION ENTRE UN ROTOR ET UNE ENCLUME DANS UNE CLÉ À CHOCS
Publication
Application
Priority
- DE 102014109412 A 20140704
- EP 2015059098 W 20150427
Abstract (en)
[origin: WO2016000843A1] The invention relates to an impact wrench (100) comprising: - a housing (110); - a motor-driven driveshaft (120); - an output shaft (130) for securing a tool, and - a percussion mechanism (140) which couples the driveshaft (120) to the output shaft (130) in order to transmit a torque. A first bearing torque is provided between the output shaft (130) and the housing (110), said bearing torque acting opposite the rotational direction of the output shaft (130), and a second bearing torque is provided by the percussion mechanism (140) between the output shaft (130) and the driveshaft (120) when the driveshaft (120) is not coupled to the output shaft (130), said bearing torque acting opposite the rotational direction of the drive shaft (120). The invention is characterized in that the first bearing torque is smaller than the second bearing torque.
IPC 8 full level
B25B 21/02 (2006.01)
CPC (source: CN EP US)
B25B 21/02 (2013.01 - CN EP US); B25B 21/026 (2013.01 - CN EP US)
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)
DE 102014109412 B3 20150910; CN 106660196 A 20170510; EP 3169485 A1 20170524; US 2017165817 A1 20170615; WO 2016000843 A1 20160107
DOCDB simple family (application)
DE 102014109412 A 20140704; CN 201580036690 A 20150427; EP 15719676 A 20150427; EP 2015059098 W 20150427; US 201515323931 A 20150427