EP 2132005 B1 20120502 - ROTARY PERCUSSION MECHANISM
Title (en)
ROTARY PERCUSSION MECHANISM
Title (de)
DREHSCHLAGWERK
Title (fr)
MÉCANISME ROTOPERCUTANT
Publication
Application
Priority
- EP 2008051509 W 20080207
- DE 102007014757 A 20070328
Abstract (en)
[origin: WO2008116691A1] The invention relates to a rotary percussion mechanism (1) for an electric tool, having a drivable rotary percussion weight (3) with at least one hammer surface (15), and having an anvil (16) that can be rotated with the rotary percussion weight (3) about a common rotational axis (13) and is operatively connected to a tool shaft (2) to transmit torque, said anvil having at least one anvil surface (16). Said rotary percussion mechanism also has a displacement mechanism comprising a return spring (9), said mechanism being designed to cause a combined relative motion in the axial and circumferential directions under tension of the return spring (9) between the rotary percussion weight (3) and the anvil (10), resulting in a percussion effect of the hammer surface (15) on the anvil surface (16) in the circumferential direction, when the tool shaft (2) demands increased torque. According to the invention, the tool shaft (2) is axially displaceably supported, and the anvil surface (16) and/or the hammer surface (15) is/are aligned and/or designed such that a percussion of the hammer surface (15) on the anvil surface (16) results in a displacement of the tool shaft (2) in the axial direction, in addition to a rotary impulse on the tool shaft (2) in the circumferential direction.
IPC 8 full level
B25D 16/00 (2006.01)
CPC (source: EP)
B25B 21/026 (2013.01); B25D 11/106 (2013.01); B25D 2216/0023 (2013.01)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR
DOCDB simple family (publication)
DE 102007014757 A1 20081002; AT E555880 T1 20120515; EP 2132005 A1 20091216; EP 2132005 B1 20120502; ES 2382497 T3 20120608; WO 2008116691 A1 20081002
DOCDB simple family (application)
DE 102007014757 A 20070328; AT 08708789 T 20080207; EP 08708789 A 20080207; EP 2008051509 W 20080207; ES 08708789 T 20080207