Patent ID: 7806199

Claim:
A spindle lock of a hand-held combination drill and chisel hammer, the spindle lock comprising: a gearbox housing; a countershaft rotatably supported in the gearbox housing about an axis of rotation, wherein on the countershaft a pinion with a toothing is rotatably supported that drives a tool spindle; a locking plate provided for selectively releasing and locking a rotational movement of the pinion with the toothing supported on the countershaft; guide means disposed in the gear box housing, wherein the locking plate is displaceably guided on the guide means in the gearbox housing in a direction parallel to the axis of rotation of the countershaft; the guide means comprising a guide rail arrangement wherein a part of the guide rail arrangement is provided on the gearbox housing and is monolithic with the gearbox housing; wherein the guide rail arrangement has at least two guide slots extending parallel to the axis of rotation of the countershaft, wherein the locking plate has gliding surfaces and the gliding surfaces each are slidably guided in one of the at least two guide slots, wherein the at least two guide slots have a direction of width and the directions of width of the at least two guide slots are arranged angularly relative to one another.