Height measuring unit for three=dimensional measuring or marking of workpieces

摘要

The unit consists of a unit foot (3), a unit column (8) and a measuring or marking tool (11), which can be fixed at a cross arm (10). The unit foot is slidably located on at least one guide rail (1) arranged on a baseplate (7). The guide rail is protected by a cover system (6) and is acted on by a cleaning system (2), such as a brush. The brush is connected in front of the unit foot (3) in the movement direction. The brush is connected to the unit foot. Each guide rail is provided in each movement direction with a separate cleaning system. The brush may be rotatable.