Patent ID: 11877542
Assignee: ANDREAS STIHL AG & CO. KG
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC A  E  F  H  Y | IPC A  F  H

Claim 19:
20. A backpack blower, comprising:
a backpack having a load-bearing frame;
a blower tube having a backpack-side tube section which is held on a rear side of the load-bearing frame, and having a hand-side tube section which extends past a first side region of the load-bearing frame;
a drive motor;
an energy source for the drive motor; and
an axial fan which is driven by the drive motor, has an axial fan axis, and is arranged in the backpack-side tube section of the blower tube, wherein
the backpack-side tube section of the blower tube runs with a main direction component in a backpack transverse direction of the load-bearing frame and has an axial blower tube end termination, and
the axial blower tube end termination projects laterally beyond a second side region of the load-bearing frame, which second side region faces away from the first side region, or the axial blower tube end termination is surrounded at least on a part of its circumference by a protective ring element which is connected to the load-bearing frame;
an air guiding cone which is arranged coaxially in front of an axial tube wall end region of the backpack-side tube section with the formation of an annular radial air inlet opening, and forms the blower tube end termination with an axially outer end; and
an air intake grille which is made from an elastically deformable material, is arranged on the air inlet opening, surrounds the axial tube wall end region of the backpack-side tube section at least on a part of its circumference without contact at a radial spacing, and is connected on the one hand at an axially outer end axially in front of the blower tube end termination to the protective ring element and on the other hand at an axially inner end axially behind the blower tube end termination to the load-bearing frame.