US 9,812,933 B2
Electric hand tool having a discrete operating element
Hamed Feridouni, Stuttgart (DE); and Andreas Kynast, Stuttgart (DE)
Assigned to ROBERT BOSCH GMBH, Stuttgart (DE)
Filed by Robert Bosch GmbH, Stuttgart (DE)
Filed on Aug. 7, 2013, as Appl. No. 13/961,297.
Claims priority of application No. 10 2012 214 030 (DE), filed on Aug. 8, 2012.
Prior Publication US 2014/0042838 A1, Feb. 13, 2014
Int. Cl. B25F 5/00 (2006.01); H02K 11/00 (2016.01); H01H 9/06 (2006.01); H02K 7/14 (2006.01); H02K 11/33 (2016.01); B25B 21/02 (2006.01)
CPC H02K 11/0073 (2013.01) [B25F 5/00 (2013.01); H01H 9/061 (2013.01); H01H 9/063 (2013.01); H02K 7/145 (2013.01); H02K 11/33 (2016.01); B25B 21/02 (2013.01)] 15 Claims
OG exemplary drawing
 
1. An electric hand tool, comprising:
an electrical consumer;
an operating element having a first movable element for actuation by a user; and
a control unit for controlling a current flow through the consumer on the basis of a position of the first movable element, wherein:
the control unit is adapted to be separate from the operating element, and
the position of the first movable element is converted into an electrical signal in the control unit but not in the operating element,
wherein the first movable element is configured to require a predetermined operating force for a change in its position,
wherein the operating element has a latching mechanism configured to counteract a movement of the first movable element between predetermined positions,
wherein the predetermined operating force is independent from a force required to generate a corresponding electrical control signal.