JP2555554Y2 - Vacuum cleaner suction body - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a suction port having a rotating brush for a vacuum cleaner.

[0002]

2. Description of the Related Art Conventionally, a suction port shown in FIGS. 3 and 4 has been known as this kind of suction port. In the drawing, reference numeral 1 denotes a housing of a suction port body, in which a rotary brush chamber 2 for accommodating a rotary brush described later is integrally formed, and a suction port 3 is opened in the rotary brush chamber 2; The suction part 4 is connected. Reference numeral 5 denotes the above-mentioned rotary brush, in which a pulley 6 is formed integrally, and supporting shafts 7, 7 are fixed to both ends. Reference numerals 8 and 9 denote ribs formed integrally with the housing 1 and form a part of the rotary brush chamber 2. These ribs 8 and 9 have through holes 1
0 and 11 are provided, and the vicinity of the end of the rotating brush 5 is loosely fitted.

[0003] Reference numeral 12 denotes a belt chamber integrally formed with the housing 1, which is separated from the rotary brush chamber 2 by the rib 8. A bearing 13 for supporting one of the support shafts 7 is fixed to the belt chamber 12, and a motor 14 is also housed therein. Reference numeral 15 denotes a belt for transmitting the rotation of the motor 14 to the pulley 6, whereby the rotating brush 5
At high speed in the direction of the solid arrow. A bearing chamber 16 is formed integrally with the housing 1 and is separated from the rotary brush chamber 2 by the rib 9. This belt room 1
A bearing 17 for supporting the other of the support shaft 7 is fixed to 6.

[0004] In the suction port body configured as described above, dust, cotton dust, and the like on a carpet or the like are scraped up by the rotating brush 5, and are sucked from the suction port 3 into the suction section 4. In addition, a part of dust, cotton dust, and the like to be sucked by the suction part 4 is
Pulley 6 and bearing 1
Attaches to 3, 17, etc. If the suction port body is used for a long time in a state where dust or the like is attached as described above, noise is generated when the rotating brush 5 rotates, and the pulley 6, the belt 15,
The support shaft 7, the bearing 13 and the like generate abnormal heat and smoke, and also cause early wear.

The gaps between the ribs 8 and 9 and the rotary brush 5 in the through holes 10 and 11 are necessary to absorb variations in parts and variations in assembly.
This is necessary in consideration of fluctuations in rotational load. Heretofore, in order to prevent dust and the like from passing through the above-mentioned gap, there has been known an apparatus in which a filling such as foam sponge or felt is attached to the gap.

[0006]

When the padding is attached to the gap, dust and the like can be prevented from passing therethrough, but the padding is pressed against the outer peripheral surface of the rotating brush in a compressed state. Therefore, this pressure contact force is large, and heat is generated due to friction. This heat is greater when the center of the rotary brush and the through hole of the rib are shifted. This invention solves the above-mentioned problem of the conventional suction port body, and can sufficiently prevent dust and the like from passing through the above-mentioned gap, and has no heat generation problem as described above. It is an object of the present invention to provide a suction port body.

[0007]

The suction port of the vacuum cleaner of the present invention is a suction port of a vacuum cleaner provided with a rotating brush to which rotation is transmitted from a power source such as a motor via a belt. A rotating brush chamber having a suction port, in which the rotating brush is housed, wherein the rotating brush forms a part of the rotating brush chamber and is separated from a belt chamber or the like in which the belt is housed. In the one loosely fitted in the through hole, the rotary brush has holes each slightly smaller than the diameter of the portion loosely fitted in the through hole, and a plurality of holes provided radially from the edges of these holes. At least two flexible sheets having slits are provided such that these holes are substantially concentric with said through-holes and said at least two
The slits of the thin sheets are fixed to the ribs so as not to overlap with each other, and the rotary brush is inserted through the hole.

[0008]

In the suction opening of the vacuum cleaner constructed as described above, the vicinity of at least two thin plate holes is curved by the insertion of the rotating brush, so that the slit is widened and the outer peripheral surface of the rotating brush is formed. It is pressed. Since the pressing force due to this pressing is due to the bending of the flexible thin plate, it is extremely weak, and the problem of heat generation due to the pressing does not occur. Further, although the slits are widened, dust does not pass through these slits since at least two thin plate slits do not overlap.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 shows a main part of a suction port body of a vacuum cleaner relating to the present invention, and the same parts as those in FIGS. 3 and 4 used for explaining a conventional example are denoted by the same reference numerals. Therefore, the detailed description is omitted. Reference numerals 20 and 21 denote flexible thin plates such as non-woven fabrics, and holes 22 and 21 as shown in FIGS.
23 is drilled and formed in a donut shape. The holes 22 and 23 have a diameter slightly smaller than the diameter of the portion of the rotary brush 5 that is loosely fitted in the through hole 10, and a plurality of the holes 22 and 23 are provided radially from the edge toward the outer periphery near the edge. Slits 24 and 25 are provided.

[0010] Adhesives 26 and 27 are provided near the outer periphery of one side of the thin plates 20 and 21. These thin plates 20 and 21 are overlapped and fixed to each other with an adhesive 27. At this time, the slits 24 and 25 are prevented from overlapping as shown in FIG. The thin plates 20 and 21 thus fixed to each other are fixed to the rib 8 by the adhesive 26. At that time, the through-hole 10 and the hole 22,
23 is concentric. The holes 22, 2
The rotating brush 5 is inserted through 3 so that the thin plate 20,
The vicinity of the holes 22 and 23 of 21 is curved and pressed against the outer peripheral surface of the rotating brush 5 to be sealed. When the vicinity of the holes 22 and 23 curves, the slits 24 and 25 widen, but the slit 2
Since 4 and 25 do not overlap, these slits 24,
No dust or the like passes through 25. As described above, since the vicinity of the edges of the holes 22, 23 of the thin plates 20, 21 is curved and elastically contacts the outer peripheral surface of the rotating brush 5, the outer diameter of the rotating brush 5 is eccentric. No gap is produced.

In the above embodiment, the case where two thin plates 20 and 21 are used has been described. However, more thin plates may be overlapped. In the above embodiment, the gap between the rib 8 and the rotating brush 5 is sealed by the thin plates 20 and 21, but the gap between the rib 9 and the rotating brush 5 can be sealed in the same manner. In the above-described embodiment, the case where the main body of the rotary brush 5 is loosely fitted in the through holes 10 and 11 has been described, but the support shaft 7 which is a part of the rotary brush 5 is loosely fitted to the ribs 8 and 9. Can be similarly sealed with a thin plate. In the above embodiment, the rotating brush 5 is rotated by the motor 14. However, the rotating brush 5 may be rotated by an aerodynamic (turbine) fan via a belt.

[0012]

As described above, according to the present invention, pulleys, belts, bearings, and the like can be easily and reliably formed regardless of the gap between the rotating brush and the ribs and regardless of the mounting position of the rotating brush. It is possible to prevent dust and cotton dust from adhering. For this reason, the expected effects are great both for quality maintenance and durability.

[Brief description of the drawings]

FIG. 1 shows an embodiment of the present invention, and is a schematic front view of a main part of a suction port body related to the present invention.

FIG. 2 shows an embodiment of the present invention, and is a side view of a thin plate serving as a sealing material.

FIG. 3 shows a conventional example, and is a plan view of a suction port body.

FIG. 4 shows a conventional example, and is a side view of a suction port body.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 housing 2 rotating brush chamber 3 suction port 5 rotating brush 8 rib 9 rib 10 through hole 11 through hole 12 belt chamber 14 motor 15 belt 20 thin plate 21 thin plate 22 hole 23 hole 24 slit 25 slit

Claims (1)

(57) [Scope of request for utility model registration] 1. A suction brush for a vacuum cleaner, comprising: a rotating brush to which rotation is transmitted from a power source such as a motor via a belt, wherein the rotating brush contains the rotating brush and has a suction opening. A rotating chamber, wherein the rotating brush forms a part of the rotating brush chamber and is loosely fitted in a through hole of a rib for separating the belt from a belt chamber or the like in which the belt is stored. At least two flexible sheets, each having holes slightly smaller than the diameter of the portion loosely fitted in the holes, and having a plurality of slits provided radially from the edges of these holes, are characterized in that these holes are The slits of the at least two thin plates are fixed to the rib so as to be substantially concentric with the through hole, and the rotating brush is inserted through the hole. The suction port of the vacuum cleaner.