Patent ID: 7311589

Claim:
A manually operated electric machine tool for a disk-shaped rotating tool ( 18 ), comprising: a machine housing ( 11 ), wherein a drive spindle ( 12 ) for the tool ( 18 ) protrudes from the machine housing ( 11 ); a guard ( 20 ) that is detachably connected to the machine housing ( 11 ) and is designed to at least partially cover the tool ( 18 ), wherein said guard has a clamp ( 23 ) with a clamping element ( 24 ); and a hollow cylindrical collar ( 15 ), wherein said collar is provided on the machine housing ( 11 ) and is coaxial to the drive spindle ( 12 ), the clamp ( 23 ) permitting the guard ( 20 ) to be mounted onto the collar and fixed in relation to the collar it, wherein the clamp ( 23 ) is secured to the collar ( 15 ) in a rotating fashion and a manually releasable locking mechanism between the clamp ( 23 ) and the collar ( 15 ) is designed so as to permit the guard ( 20 ) to be locked in a number of definite relative rotational positions in relation to the collar ( 15 ), wherein the manually releasable locking mechanism has a toothed section ( 34 ) provided on the collar ( 15 ) and a ratchet ( 37 ) that is provided on the clamp ( 23 ) and is pressed into the toothed section ( 34 ) by means of spring force, and wherein the ratchet ( 37 ) is embodied on a soring-loaded hand lever ( 36 ) that is provided on the outside of the clamp ( 23 ) and is able to pivot around a pivot axis ( 361 ) parallel to a clamp axis.