The invention relates to a hand-held tool machine comprising a housing within which a motor for driving a tool and a switch for switching on and off the motor are received, further comprising a switching arrangement including a switch button movable between a non-activated position and an activated position for activating the switch, and further comprising a locking arrangement movable between a blocking position and a released position, wherein the switch lever can only be moved into the activated position, when the locking arrangement is in the release position, and wherein the locking arrangement in the activated position allows a moving of the push-button into a latching position.
Such a hand-held tool machine is known from EP 2 207 181 A2.
In particular with angle grinders it is common to utilize a switch lever within the rear region of the housing that can be gripped with one hand for moving the switch lever between a non-activated and an activated position for activating a switch for switching on and off the motor. Herein a locking arrangement is provided that impedes an activation of the switch lever, as long as the locking arrangement is in a blocking position. To allow for moving of the switch lever into the activated position first the locking arrangement must be moved into a release position.
Such a locking arrangement shall avoid that the angle grinder starts up inadvertently upon gripping. In addition the switch lever shall automatically move into its non-activated position upon release so that the motor is switched off and possibly a breaking of the angle grinder is activated. If the switch lever is in its activated position and thus the motor starts up, then the latter can be latched to allow a simplified handling of the angle grinder during a longer operation.
The hand-held tool machine mentioned before fulfills these functions. In, a similar way also functions a hand-held tool machine known from EP 2 319 662 A1.
The switching arrangements of the known hand-held tool machines are of a relatively complicated design and have a relatively complicated handling.