Suction cleaner

• US 20050060839A1
• Filed: 11/05/2002
• Published: 03/24/2005
• Est. Priority Date: 11/09/2001
• Status: Abandoned Application

• Current Assignee: Sharp Kabushiki Kaisha (Hon Hai Precision Industry Co., Ltd.)
• Original Assignee: Sharp Kabushiki Kaisha (Hon Hai Precision Industry Co., Ltd.)
• Inventors: Ohta, Hiroshi, Satoh, Masahiro, Nishinaka, Noboru, Yoshimura, Hiroshi, Ninomiya, Kohji, Oka, Yasuhiro
• Application Number:
  US10/493,900
• Publication Number:
  US 20050060839A1
• Time in Patent Office: Days
• US Class Current: 15/418
• CPC Class Codes: A47L 5/30 with driven dust-loosening tools, e.g. rotating brushes
• CPC Class Codes: A47L 5/34 with height adjustment of nozzles or dust-loosening tools
• CPC Class Codes: A47L 9/0072 Mechanical means for controlling the suction or for effecting pulsating action
• CPC Class Codes: A47L 9/02 Nozzles suction nozzles for fluid transport B65G51/00
• CPC Class Codes: A47L 9/0411 driven by electric motor
• CPC Class Codes: A47L 9/0494 Height adjustment of dust-loosening tools
• CPC Class Codes: A47L 9/2847 Surface treating elements
• CPC Class Codes: A47L 9/2863 Control elements activated by pivoting movement of the upright vacuum cleaner handle
• CPC Class Codes: A47L 9/2889 Safety or protection devices or systems, e.g. for prevention of motor over-heating or for protection of the user
• CPC Class Codes: A47L 9/30 Arrangement of illuminating devices

Abstract

A suction cleaner that sucks in dust, from a suction mouth, with airflow generated through operation of an electric air blower and introduces the sucked airflow into a dust collection device to collect the dust. The suction mouth is provided with a first suction mouth and a second suction mouth, and, when in use, one of the suction mouths are selected by a suction mouth-switching device. The second suction mouth has a smaller opening area than the first suction mouth and a high-speed suction airflow is generated. A suction passage is provided between the first suction mouth and the suction mouth-switching device, a suction passage is also provided between the second suction mouth and the suction mouth switching-device, the latter suction mouth being arranged on top of the former suction mouth. Part of the latter suction mouth is structured by a detachable cap formed of a transparent or semitransparent material. Further, the suction mouth can be provided with an opening area-adjusting device that adjusts the opening area of the suction mouth.

Claims

1. (canceled)

2. (canceled)

3. (canceled)

4. A suction cleaner that sucks in, along with an air stream produced as an electric blower is operated, dust through a suction mouth formed in a suction mouth unit and then introduces the air stream thus sucked in into a dust collecting device to collect the dust,

wherein the suction mouth unit is provided with a first suction mouth and a second suction mouth that communicate individually with different suction passages that are independent of each other, an opening area of the second suction mouth is smaller than an opening area of the first suction mouth, and at least part of the second suction mouth is located in front of the first suction mouth.

11. The suction cleaner according to claim 4, wherein there is provided a suction mouth switching device that permits selective use of the first and second suction mouths, and part of the suction passage leading from the second suction mouth to the suction mouth switching device is formed as a removable lid.

13. The suction cleaner according to claim 4, wherein there is provided a suction mouth switching device that permits selective use of the first and second suction mouths, the suction mouth switching device includes a switch valve that selectively closes suction passages that communicate respectively with the first and second suction mouths, and a rotation shaft of the switch valve is arranged on an upstream side of an air stream.

14. The suction cleaner according to claim 4, wherein a left-hand protruding portion and a right-hand protruding portion are formed on the suction mouth unit, and a cleaner main unit is arranged between the left-hand and right-hand protruding portions and is rotatably coupled to the suction mouth unit, with the suction mouth switching device that permits selective use of the first and second suction mouths arranged in one of the left-hand and right-hand protruding portions.

5. (canceled)

6. (canceled)

7. (canceled)

8. (canceled)

9. (canceled)

10. (canceled)

12. (canceled)

15. (canceled)

16. A suction cleaner that sucks in, along with an air stream produced as an electric blower is operated, dust through a suction mouth formed in a suction mouth unit and then introduces the air stream thus sucked in into a dust collecting device to collect the dust,

wherein the suction mouth is provided with an opening area adjusting device that adjusts an opening area of the suction mouth, an agitator is provided inside the suction mouth unit, and the agitator can be driven when the opening area of the suction mouth is adjusted by the opening area adjusting device to a size suitable for the agitator to be driven.

20. The suction cleaner according to claim 16, wherein a plurality of covers are provided that each have a suction mouth opening and that are removably coupled to the suction mouth unit, and the opening area adjusting device is realized by varying areas of the suction mouth openings of the individual covers.

17. A suction cleaner that sucks in, along with an air stream produced as an electric blower is operated, dust through a suction mouth formed in a suction mouth unit and then introduces the air stream thus sucked in into a dust collecting device to collect the dust,

wherein the suction mouth is provided with an opening area adjusting device that adjusts an opening area of the suction mouth, and inside the suction mouth unit are provided an agitator and a height controlling device that controls a degree in which the agitator protrudes from the suction mouth.

18. The suction cleaner according to claim 17, wherein the agitator is protruded to an operation position by the height controlling device when the opening area of the suction mouth is adjusted by the opening area adjusting device to a size suitable for the agitator to be driven.

19. (canceled)