Patent application number | Description | Published |
20100270046 | SWASH DRIVE OF A HAND-HELD POWER TOOL - The invention relates to a wobble drive of a hand-held machine tool, particularly a drilling or chipping hammer, having a drive shaft, a wobble bearing disposed on the drive shaft, and a wobble plate supported on the wobble bearing. At least two wobble fingers having wobble finger axes being provided on the wobble plate. The invention provides that the axes of the wobble fingers form an angle different from 180°. | 10-28-2010 |
20110024149 | HAND-HELD POWER TOOL - The invention relates to a hand-held power tool, especially a rotary hammer and/or chisel hammer The hand-held power tool is provided with a vibration dampening unit having a first absorber mass unit with a first vibration dampening direction and at least one second absorber mass unit with a second vibration dampening direction. The hand-held power tool in particular has the first vibration dampening direction of the first absorber mass unit disposed as substantially parallel to the second vibration dampening direction of the second absorber mass unit. | 02-03-2011 |
20110114345 | HANDHELD POWER TOOL DEVICE - The invention is based on a handheld power tool device, having at least one safety mechanism, which intervenes in an uncontrolled blocking situation, and which has a sensor unit. It is proposed that the sensor unit is provided for directly detecting at least one orientation parameter of a handheld power tool. | 05-19-2011 |
20120279741 | VARIATION OF THE NATURAL FREQUENCY OF VIBRATORY MEANS IN ELECTRIC TOOLS - An electric tool includes a vibratory means which is configured to impart a counteracting vibration which counteracts a housing vibration of the electric tool. A vibration-relevant characteristic of the vibratory means can be adapted during the operation of the electric tool in such a way that the amplitude, the phase position and/or the frequency of the counteracting vibration varies with a change in the vibration-relevant characteristic. The vibratory means of the electric tool has a natural frequency which can be varied by variation means of the electric tool. A method for compensating housing vibrations, in particular of the electric tool, includes imparting a counteracting vibration by a vibratory means which counteracts a housing vibration of the electric tool. The amplitude, the phase position and/or the frequency of the counteracting vibration is varied during the operation of the electric tool. | 11-08-2012 |
20130213682 | Swash Drive of a Hand-Held Power Tool - The invention relates to a swash drive ( | 08-22-2013 |
20150129248 | Percussion Unit - A percussion unit for a rotary hammer and/or percussion hammer includes a control unit that is configured for open-loop and/or closed loop control of a pneumatic percussion mechanism. In at least one operating state in which the control unit changes from an idle mode to a percussion mode, the control unit is configured to adjust at least one operating parameter temporarily to a starting value. | 05-14-2015 |
20150136433 | Percussion Unit - Percussion unit, especially for a rotary hammer and/or percussion hammer, comprising a control unit which is designed for open-loop and/or closed loop control of a pneumatic percussion mechanism, and at least one operating condition sensor unit. According to the disclosure, the control unit is designed to detect at least one percussion mechanism parameter depending on measurement values of the operating condition sensor unit. | 05-21-2015 |
20150158166 | Pneumatic Percussion Mechanism Apparatus - A pneumatic percussion mechanism apparatus, in particular for a rotary and/or percussion hammer, includes a striker mounted so as to be movable in a percussion direction in a guide tube, and at least one venting unit which is configured to influence a movement of the striker. The venting unit has a setting unit configured to set a percussion intensity, and is further configured to influence, during a percussion operation, a venting of a percussion space adjoining the striker in the percussion direction in the guide tube. | 06-11-2015 |