Hand-held suction system

Patent metadata

Field	Value
Publication number	US-11806464-B2
Application number	US-202117192291-A
Country	US
Kind code	B2
Filing date	Mar 4, 2021
Priority date	Mar 5, 2020
Publication date	Nov 7, 2023
Grant date	Nov 7, 2023

Abstract

A hand-held suction system includes: a hand-held suction device, a tube unit and a bag unit, wherein the tube unit has a suction tube and a tube connecting part, and wherein the bag unit has a collecting bag and a bag connecting part. The tube connecting part and the bag connecting part are designed to form a mechanical connection to one another in order to hold the bag unit by way of the tube unit. The tube connecting part is arranged in such a way on a circumference of the suction tube, in an upper half of the circumference in a circumferential direction, in a correct operating position of the suction system, and the suction system is designed in such a way that the bag unit held by the tube unit extends downwards in the circumferential direction along the suction tube, on the upper half of the circumference.

First claim

What is claimed is:

1. A hand-held suction system, comprising:
a hand-held suction device;
a tube unit; and
a bag unit,
wherein the tube unit has a suction tube and a tube connecting part,
wherein the bag unit has a collecting bag and a bag connecting part,
wherein the tube connecting part and the bag connecting part are designed to form a mechanical connection to one another in order to hold the bag unit by way of the tube unit,
wherein the tube connecting part is arranged in such a way on a circumference of the suction tube, in an upper half of the circumference in a circumferential direction, in an operating position of the suction system, and the suction system is designed such that the bag unit held by the tube unit via the tube connecting part mechanically connecting with the bag connecting part extends downwards in the circumferential direction along the suction tube, on the upper half of the circumference, wherein the upper half faces upwards in the operating position of the suction system.

2. The hand-held suction system according to claim 1 , wherein at least one of:
in a flow direction, the collecting bag extends along the suction tube for a minimum of 0.2 times a length of the suction tube in the flow direction,
in the flow direction, the connection extends along the suction tube for a minimum of 0.1 times a length of the suction tube in the flow direction, or
counter to the flow direction, the tube connecting part is a minimum of 0.2 times a length of the suction tube in the flow direction from a device-side end of the suction tube.

3. The hand-held suction system according to claim 1 ,
wherein the tube connecting part and the bag connecting part are designed to form the connection to one another so as to allow the bag unit to run optionally along a left-hand half or a right-hand half of the circumference in a flow direction in the operating position of the suction system.

4. The hand-held suction system according to claim 1 ,
wherein the tube connecting part is arranged at an uppermost point of the circumference in a circumferential direction in the operating position of the suction system.

5. The hand-held suction system according to claim 1 ,
wherein the tube connecting part is a loop hanger arrangement, and/or
wherein the bag connecting part is a loop.

6. The hand-held suction system according to claim 5 ,
wherein the loop is designed as a carrying handle to enable a released bag unit to be carried by a user.

7. The hand-held suction system according to claim 6 ,
wherein the collecting bag has a resealable emptying aperture,
wherein the loop and the emptying aperture are arranged relative to one another such that the emptying aperture of the collecting bag is not oriented downwards when the released bag unit is being carried by the loop.

8. The hand-held suction system according to claim 1 ,
wherein the suction system is designed to form an arrangement of the bag unit on the suction device and the tube unit which is releasable without tools, and/or
wherein the suction system is designed to form an arrangement of the tube unit on the suction device and the bag unit which is releasable without tools.

9. The hand-held suction system according to claim 1 ,
wherein the collecting bag has an emptying aperture that is resealable via a zip fastener,
wherein the collecting bag has a backing, at least in an end region of the emptying aperture.

10. The hand-held suction system according to claim 1 ,
wherein a shape of the collecting bag is not mirror-symmetrical with respect to a plane extending from the top down and from the front to the rear in the operating position of the suction system, and/or
wherein a gas permeability of the collecting bag is not mirror-symmetrical with respect to a plane extending from the top down and from the front to the rear in the operating position of the suction system.

11. The hand-held suction system according to claim 1 ,
wherein the tube unit is arranged on a tube side of the suction device, and
wherein the bag unit is arranged on a bag side of the suction device which is different from the tube side.

12. The hand-held suction system according to claim 11 ,
wherein the tube side faces forwards and downwards in the operating position of the suction system, and
wherein the bag side faces rearwards and downwards in the operating position of the suction system.

13. The hand-held suction system according to claim 1 ,
wherein the suction device has a handle for a user for guiding the suction system,
wherein the handle is arranged on the top of the suction device in the operating position of the suction system.

14. The hand-held suction system according to claim 1 ,
wherein the suction tube has a circular cross section at the tube connecting part.

15. A hand-held suction system, comprising:
a hand-held suction device;
a tube unit; and
a bag unit, wherein the tube unit has a suction tube and a tube connecting part,
wherein the bag unit has a collecting bag and a bag connecting part,
wherein the tube connecting part and the bag connecting part are designed to form a mechanical connection to one another in order to hold the bag unit by way of the tube unit,
wherein the tube connecting part is arranged in such a way on a circumference of the suction tube, in an upper half of the circumference in a circumferential direction, in an operating position of the suction system, and the suction system is designed such that the bag unit held by the tube unit extends downwards in the circumferential direction along the suction tube, on the upper half of the circumference, wherein the tube connecting part is arranged in such a way and the suction system is designed in such a way that the collecting bag extends along and touches the suction tube downwards in the circumferential direction on the upper half of the circumference.

Assignees

• Stihl Ag & Co Kg Andreas

Inventors

• Pfeifer Markus
• Seiz Jonathan
• Fuchs Alexander
• Oesterle Markus

Classifications

• A61M1/76 Primary

  Handpieces (specially for suction-irrigation A61M1/774, aspiration tips A61M1/84) · CPC title

• A01G20/47

  Vacuum or blower devices · CPC title

• A47L5/24

  Hand-supported suction cleaners · CPC title

• A47L9/1427

  Means for mounting or attaching bags or filtering receptacles in suction cleaners; Adapters · CPC title

• A61M1/63

  with means for emptying the suction container, e.g. by interrupting suction · CPC title