Blower apparatus

Patent metadata

Field	Value
Publication number	US-11445870-B2
Application number	US-201916436594-A
Country	US
Kind code	B2
Filing date	Jun 10, 2019
Priority date	Jun 12, 2018
Publication date	Sep 20, 2022
Grant date	Sep 20, 2022

Abstract

A blower apparatus is driven by a drive motor and has an intake opening and a discharge opening. The blower apparatus has a handle for guiding the blower apparatus with the handle being mounted on the blower apparatus such that it is pivotable from a first position into at least a second position. The blower apparatus is configured such that, during operation of the blower apparatus, an air flow passes through the discharge opening in a discharge direction. The handle has a grip region, which, in the first position, is inclined differently with respect to the discharge direction compared with the second position.

First claim

What is claimed is:

1. A blower apparatus comprising:
a fan;
a drive motor driving said fan;
an intake opening and a discharge opening;
a handle for guiding said blower apparatus;
said handle being mounted on said blower apparatus so as to permit pivoting said handle from a first position into at least a second position;
said handle defining a grip region;
said blower apparatus being configured to cause an air flow to pass said discharge opening in a discharge direction during operation of said blower apparatus;
said grip region being inclined relative to said discharge direction at a first inclination in said first position and at a second inclination in said second position different than said first inclination;
said grip region defines a longitudinal axis;
said longitudinal axis is orientated in a direction of a first direction vector in said first position;
said longitudinal axis is orientated in a direction of a second direction vector in said second position;
said air flow passes said discharge opening in a direction of a third direction vector arranged at said discharge opening;
a first angle (α) is measured from said third direction vector to said first direction vector in the direction of said grip region;
a second angle (β) is measured from said third direction vector to said second direction vector in the direction of said grip region; and,
said first angle (α) is greater than said second angle (β).

2. The blower apparatus of claim 1 , wherein there is a difference (Δ) between said first angle (α) and said second angle (β) which is greater than 10°.

3. The blower apparatus of claim 1 , wherein there is a difference (Δ) between said first angle (α) and said second angle (β) which is less than 200°.

4. The blower apparatus of claim 1 , wherein said first angle (α) lies in a range of 170°<α<220°.

5. The blower apparatus of claim 1 , wherein said grip region is at least partially inclined away from said discharge opening in said first position; and, said grip region is at least partially inclined in a direction toward said discharge opening in said second position.

6. The blower apparatus of claim 1 , wherein said handle is pivotable about a pivot axis.

7. The blower apparatus of claim 6 , wherein said handle, in said second position, is pivoted by 180° about said pivot axis compared to said first position.

8. The blower apparatus of claim 1 , wherein said blower apparatus is selectively operable in a suction mode or in a blower mode; and, said first position of said handle corresponds to said suction mode and said second position of said handle corresponds to said blower mode.

9. The blower apparatus of claim 1 , wherein said handle defines a longitudinal direction and said handle has first and second ends in said longitudinal direction; and, wherein said blower apparatus further comprises:
an operator-controlled element for controlling said drive motor;
said operator-controlled element being arranged in the region of said first end;
said first end being directed away from said discharge opening in said first position of said handle; and,
said first end being directed toward said discharge opening in said second position of said handle.

10. The blower apparatus of claim 9 , wherein said operator-controlled element is arranged at a fixed position on said handle.

11. The blower apparatus of claim 1 , further comprising a second handle; and, said discharge opening and said second handle lying on mutually opposite sides of said fan.

12. The blower apparatus of claim 1 ,
wherein said fan is a radial fan.

13. The blower apparatus of claim 12 , wherein:
said handle is pivotable about a pivot axis, wherein said pivot axis is orientated in a direction of a fourth direction vector;
said fourth direction vector points at least partially in a direction from said discharge opening to said handle;
said air flow passes said intake opening in a direction of a fifth direction vector arranged at said intake opening;
a fourth angle (δ) is measured from said fifth direction vector to said fourth direction vector in a direction away from said discharge opening; and,
said fourth angle (δ) is greater than 10°.

14. The blower apparatus of claim 13 , wherein a fifth angle (ε) is measured from said fifth direction vector to said first direction vector in a direction away from said discharge opening; and, said fifth angle (ε) lies in a range of 80°<ε<130°.

15. A blower apparatus comprising:
a fan;
a drive motor driving said fan;
an intake opening and a discharge opening;
a handle for guiding said blower apparatus;
said handle being mounted on said blower apparatus so as to permit pivoting said handle from a first position into at least a second position;
said handle defining a grip region;
said blower apparatus being configured to cause an air flow to pass said discharge opening in a discharge direction during operation of said blower apparatus;
said grip region being inclined relative to said discharge direction at a first inclination in said first position and at a second inclination in said second position different than said first inclination;
wherein said handle is pivotable about a pivot axis;
said air flow passes said discharge opening in a direction of a third direction vector arranged at said discharge opening; wherein said pivot axis is orientated in a direction of a fourth direction vector;
said fourth direction vector points at least partially in a direction from said discharge opening to said handle; a third angle (γ) between said third direction vector and said fourth direction vector lies in a range of 90°<γ<180°;
and,
said third angle (γ) is measured from said third direction vector in the direction of said grip region.

Assignees

• Stihl Ag & Co Kg Andreas

Inventors

• Kuschewski Mario
• Jug Simon

Classifications

• A47L9/322

  for hand-supported suction cleaners · CPC title

• E01H1/0836

  Apparatus dislodging all of the dirt by suction (combined with loosening by blowing E01H1/0863; liquids or semi-liquids E01H1/108; removing snow by suction E01H5/106, E01H8/08; for cleaning rails E01H8/105, E01H8/125); Suction nozzles (suction and blowing nozzles E01H1/0863) · CPC title

• A47L5/14 Primary

  cleaning by blowing-off, also combined with suction cleaning · CPC title

• A01G20/47 Primary

  Vacuum or blower devices · CPC title

• E01H1/0809

  Loosening or dislodging by blowing (combined with suction E01H1/0863; with steam E01H1/10; removing snow by blowing E01H5/106; cleaning rails by blowing E01H8/105, E01H8/125; removing fog by blowing E01H13/00; cleaning joints in road construction by blowing E01C23/0906); Drying by means of gas streams (combined with snow or ice melting E01H5/10) · CPC title