Mobile hand-held machine saw with scoring assembly and dust extraction

A mobile handheld machine saw having a saw assembly, wherein the saw assembly has a saw toolholder for a saw tool, the saw assembly has a saw drive motor for driving the saw toolholder, the saw assembly having a guide device, wherein the guide device has a guide body having a guide surface, the guide surface extending along a longitudinal axis for guiding the handheld machine saw along a working direction on a workpiece or a guide rail, wherein a saw cut can be introduced along the working direction into the workpiece by means of the saw tool protruding beyond the guide surface in a direction toward the workpiece in a sawing operation of the handheld machine tool, wherein the handheld machine saw has a scoring assembly, wherein the scoring assembly is arranged in front of the saw assembly on the guide device with respect to the working direction, having a scorer toolholder for a scoring tool, and the scoring assembly having a scorer drive for driving the scorer toolholder, wherein a score upstream from the saw cut to be introduced in the working direction can be introduced into the workpiece by means of the scoring tool protruding beyond the guide surface in the direction toward the workpiece in a scoring operation of the handheld machine tool, and wherein the scoring assembly has a scorer dust extraction device for extracting particles arising during the introduction of the score by the scoring tool into the workpiece, and

• wherein the handheld machine saw further comprises a scoring tool receptacle space for accommodating the scoring tool, wherein the scoring tool receptacle space is fluidically connected to a dust extraction fitting for connecting a suction hose, and wherein particles can flow out of the scoring tool receptacle space via the suction hose, and
• wherein the handheld machine saw further comprises a saw tool receptacle space for the saw tool, the saw tool receptacle space being different from the scoring tool receptacle space, and
• wherein the saw tool receptacle space and the scoring tool receptacle space are separated from one another by at least one partition wall, the at least one partition wall having a fixed partition wall section and a movable partition wall section, the movable partition wall section being movable in relation to the fixed partition wall section, wherein the partition wall sections are arranged adjacent to one another, and in at least one relative position in relation to one another, adjoin or overlap one another directly or in such a way that they form a closed or essentially closed flow wall, along which a particle flow containing particles generated by the scoring tool or the saw tool can flow.

A mobile handheld machine saw having a saw assembly, wherein the saw assembly has a saw toolholder for a saw tool, the saw assembly has a saw drive motor for driving the saw toolholder, the saw assembly having a guide device, wherein the guide device has a guide body having a guide surface, the guide surface extending along a longitudinal axis for guiding the handheld machine saw along a working direction on a workpiece or a guide rail, wherein a saw cut can be introduced along the working direction into the workpiece by means of the saw tool protruding beyond the guide surface in a direction toward the workpiece in a sawing operation of the handheld machine tool, wherein the handheld machine saw has a scoring assembly, wherein the scoring assembly is arranged in front of the saw assembly on the guide device with respect to the working direction, having a scorer toolholder for a scoring tool, and the scoring assembly having a scorer drive for driving the scorer toolholder, wherein a score upstream from the saw cut to be introduced in the working direction can be introduced into the workpiece by means of the scoring tool protruding beyond the guide surface in the direction toward the workpiece in a scoring operation of the handheld machine tool, and wherein the scoring assembly has a scorer dust extraction device for extracting particles arising during the introduction of the score by the scoring tool into the workpiece, and

• wherein the saw assembly has a saw dust extraction device for extracting particles arising during the introduction of the saw cut by the saw tool, the saw dust extraction device having a dust extraction fitting for connecting a suction hose, and the saw dust extraction device being fluidically connected to a saw tool receptacle space, so that particles can flow out of the saw tool receptacle space via the dust extraction fitting, and
• wherein the dust extraction fitting fluidically connected to the saw tool receptacle space is fluidically connected via a first dust extraction channel to the saw tool receptacle space, wherein the first dust extraction channel is separated by an intermediate wall from a second dust extraction channel fluidically connected to a scoring tool receptacle space at least in sections at an exit region at which the scoring tool and the saw tool exit from the workpiece, and
• wherein the intermediate wall extends up to the guide surface or comprises a intermediate wall section which directly adjoins the guide surface.