Patent ID: 8006774

Claim:
Device for cutting slits in a surface, comprising: a frame displaceable over the surface, a movable cutter on the frame and oriented during use toward the surface for the purpose of cutting slits in the surface, characterized in that the device comprises collecting means for collecting the material cut from the surface by means of the cutter, which collecting means lie behind the cutter relative to the direction of displacement of the device; and a dispensing device, comprising: a filler material container for containing filler material, which filler material container lies behind the collecting means relative to the direction of displacement of the device; a slit blade behind the cutter relative to the direction of displacement of the device, which blade extends at least during use in a cut slit and which blade is arranged on a funnel-shaped outflow opening which is oriented toward said cut slit; a channel connecting the filler material container to said outflow opening a dispensing mechanism in at least one of the channel and the filler material container for the purpose of dispensing filler material from the filler material container to said outflow opening; and a transmission for driving the dispensing mechanism in accordance with the displacement speed of the device such that the degree of dispensing of the filler material to said outflow opening depends on the displacement speed of the device over the surface; wherein the dispensing device is arranged such that the degree of dispensing of the filler material is such that said cut slit is filled with filler material dispensed to said outflow opening up to a height which corresponds substantially to the depth of said cut slit.