JP3112150B2 - Suction port 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 of a vacuum cleaner having a rotary cleaning member for polishing a floor.

[0002]

2. Description of the Related Art Conventionally, as shown in FIG. 17, a suction port body 101 provided with a rotary cleaning body 100 for polishing a floor surface (see Japanese Patent Application Laid-Open No. 7-51193) is known.

[0003] A suction opening 105 for sucking dust is formed in a bottom surface 104 of the suction main body 102.
2, the rotary cleaning body 100 is located at a position facing the suction opening 105.
Is provided.

As shown in FIG. 18, the rotary cleaning body 100 has a rotary shaft portion 106 having a groove 100a extending along the axial direction, and a blade 10 attached to the groove 100a.
7 is comprised.

[0005] The blade 107 has a first projection 108a formed on a pedestal 108 attached to the groove 100a and a second projection 108a.
The fiber member (cleaning member) 109 is integrally held between the projection 108b and the projection 108b. And the rotary cleaning body 10
When 0 rotates, the fiber member 109 rubs while abutting the floor surface.

[0006]

However, in such a suction opening body 101, since the fiber member 109 is only sandwiched between the first projection 108a and the second projection 108b, the rotary cleaning body 100 is not provided. When rotating at a high speed, there is a risk that the fiber member 109 may fall out of the pedestal 108.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and has as its object to provide a suction port body in which a cleaning member does not fall out of a pedestal even when a rotary cleaning body rotates at high speed. .

[0008]

According to the present invention, in order to achieve the above object, a suction opening for sucking dust is disposed in a suction opening body having a bottom surface formed at a position facing the suction opening. The rotary cleaning body is a suction opening body having a rotary shaft portion having a plurality of grooves along the axial direction, and a plurality of blades inserted and held in the respective grooves. At least one of the plurality of blades protrudes from the groove by a predetermined height and extends along the groove, and a cloth cleaning member extending along the groove and attaching the cleaning member to the groove. And a resin pedestal inserted and held in the pedestal, and the pedestal is integrally formed with the cleaning member, and the cleaning member is attached to the pedestal so as to be penetrated therethrough.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a suction port according to the present invention will be described below with reference to the drawings.

In FIG. 9, reference numeral 1 denotes a cleaner main body of the electric vacuum cleaner, 2 denotes a dust collecting hose having one end detachably mounted in a connection hole 1a of the cleaner main body 1, and 2a denotes the other end of the dust collecting hose 2. The grips 3 and 4 provided on the section are extension pipes connected in series to the other end of the dust collection hose, and 5 is a suction port attached to the tip of the extension pipe 4.

The cleaner body 1 is provided with a dust collection chamber (not shown), and a suction negative pressure (suction negative pressure) is applied to the dust collection chamber.
A built-in electric fan (not shown) that operates is provided. One end of the dust collection hose 2 is communicated with the dust collection chamber.

The suction port body 5 has a suction port main body 6 and a rotary connection pipe (rotating pipe) 7 attached to the suction port main body 6. The suction port body 6 is basically composed of a lower case 8 and an upper case 9 as shown in FIGS. 1 and 2, and the upper part of the lower case 8 is covered with the upper case 9. Moreover,
The space between the two cases 8 and 9 is covered and sealed by a bumper rubber BR held between the cases 8 and 9 and also serving as a seal.

The lower case 8 includes a rectangular frame-shaped annular side wall 10 including a front side wall 10a, a rear side wall 10b, a left side wall 10c, and a right side wall 10d, and side walls 10a to 10 of the annular side wall 10.
It has a reinforcing wall 11 integrally formed between d.

As shown in FIG. 4, the reinforcing wall 11 is provided on the front side with a space between the left and right sides and is formed integrally with the front side wall 10a. And a motor mounting wall portion 15 connecting the suction groove forming walls 12 and 14 integrally with the rear side wall 10b, and a motor mounting wall portion 15 connected to the suction groove forming walls 12 and 14. 1
4 and a mounting wall portion 15,
16 has a central wall portion 17 that is continuously provided. The center wall 17 is located substantially at the center of the suction port body 6 in the left-right direction. In addition, between the suction groove forming wall portions 12 and 13, FIG.
A front communication port 18 is formed as shown in FIG. The reinforcing wall 11 may be formed separately from the annular side wall 10 and fixed to the annular side wall 10 by welding or bonding, or by screws.

The front communication port 1 is provided in the suction port main body 6.
A communication chamber 18 that straddles the lower case 8 and the upper case corresponding to the communication case 8
a (front central suction groove) is formed, and the suction groove forming wall portion 1 is formed.
Suction grooves 12a and 13a as suction chambers are formed in the lower portions 2 and 13 and open downward and communicate with the communication chamber 18a. The cross-sectional area of the communication chamber 18a is equal to the left and right suction grooves 12a,
13a is formed larger than the cross-sectional area (see FIG. 8). The communication chamber 18a is located on the side opposite to the motor mounting wall 15, that is, on the substrate mounting wall 16 side.
It is formed longer than the side. In addition, this suction groove 12a,
13a and the lower part of the communication chamber 18a serve as a suction opening for sucking dust. Then, the suction grooves 12a, 13a, and the communication chamber 18
a, a first suction groove (first suction chamber) having a suction opening formed in the bottom surface is formed, and the rotary cleaning body 50 is provided in the first suction groove.
Are arranged facing the suction opening.

The suction groove forming walls 12, 13 and the left and right portions 14a, 14b of the suction groove forming wall 14 bulge upward in a semi-cylindrical shape as shown in FIGS. 1 (b) and 1 (c). The central portion 14c of the portion 14 bulges upward as shown in FIG. 1 (a), but the upper wall portion is formed flat. This suction groove forming wall portion 14
A suction groove 14d as a suction chamber extending left and right is formed therein. The suction groove 14d has a suction opening on the bottom surface for sucking dust, and a rotary cleaning body 60 is arranged in the suction groove 14d so as to face the suction opening.

The central wall portion 17 has a semi-cylindrical wall portion 17a which is located at the front and bulges upward as shown in FIG.
It has a flat portion 17b located at the rear. This central wall 1
As shown in FIG. 4, partition walls 19 and 20 are formed at the boundary between the mounting walls 7 and the mounting wall portions 15 and 16, and semicircular bearing recesses 19a and 20a are provided at the rear of the partition walls 19 and 20 at right and left intervals. It is provided as a support for the rotary connection pipe 7. The bearing recesses 19a and 20a are located behind the semi-cylindrical wall 17a.

The semi-cylindrical wall portion 17a is connected to the suction port body 6
Is located on the front side of the approximate center in the front-rear direction. The bearing recesses 19a and 20a are open upward and on the sides facing each other. Behind the semi-cylindrical wall portion 17a, the flat portion 17b of the central wall portion 17 and the suction groove forming wall portion 1
A rear communication port 21 is formed so as to straddle the front wall 14e and to be located between the bearing recesses 19a and 20a.

The upper part of the front of the central wall 17 is shown in FIG.
(a,), as shown in FIGS. 3 and 7, covered by a middle case 22 having an inverted U-shaped cross section, with both sides engaged with the partition walls 19 and 20. 22 and communication room 18
A communication path 23 communicating with the communication path a is formed. The middle case 22 is sandwiched and fixed between the lower case 8 and the upper case 9.

At the front of the lower case 8, a rotary cleaning body 50 extends left and right and the left and right portions are rotatably held by suction groove forming walls 12, 13, and at the rear of the lower case 8, extends horizontally. The rotary cleaning body 60 is rotatably held by the suction groove forming wall portion 14. The suction groove forming walls 12, 13 and 1
4 is formed in a shape slightly larger than the outer diameter shape of the rotary cleaning bodies 50 and 60. Thus, the suction flow rate at the left and right positions of the suction port can be increased by the action of the suction grooves 12a and 13a having a small cross-sectional area, so that the cleaning effect can be made substantially the same between the left and right positions and the center position of the suction port.

FIG. 1B and FIG.
(b), a motor 26 as a drive source is provided as shown in FIG. 3, and a printed circuit board 27 used for drive control of the motor 26 is provided on the mounting wall 16 as shown in FIG. 1 (c) and FIG. The motor 26 and the printed circuit board 27 are sandwiched and fixed between the cases 8 and 9 at a position (not shown).

Here, since the side on which the motor 26 is provided is heavier than the opposite side due to the weight of the motor 26, the suction port body 5 is pressed against the cleaning surface with a stronger force than the opposite side. Have been. For this reason, when a uniform suction force is applied to the entire left-right direction of the suction port body 5 by the suction negative pressure, the suction force to the cleaning surface on the motor 26 side is larger than that on the printed circuit board 27 side. Absent. Therefore, in order to equalize the total pressing force of the suction opening body 5 on the left and right sides, the suction force of the suction groove 13a on the printed circuit board 27 side to the cleaning surface is larger than the suction force of the motor 26 to the cleaning surface. In other words, it can be understood that the suction force of the suction groove 12a should be smaller than the suction force of the suction groove 13a.

For this reason, as described above, the communication chamber 18a
The side opposite to the motor mounting wall 15, that is, the board mounting wall 1
6 is formed longer than the motor mounting wall 15 side, so that the opposite side to the motor 26, that is, the printed circuit board 2
By making the side of the motor 7 longer than the motor 26, the suction force of the suction groove 13a on the printed circuit board 27 side to the cleaning surface is made larger than the suction force of the motor 26 to the cleaning surface. The left and right total pressing forces are set equal.

That is, the suction force of the suction groove 12a on the cleaning surface is Q1, the suction force of the suction groove 13a on the cleaning surface is Q2, the pressing force on the cleaning surface by the weight of the motor 26 is f1, and the printed board is The pressing force against the cleaning surface due to the weight of the 27 side is f2 (f1
> F2), assuming that the total pressing force of the suction port body 5 on the cleaning surface on the motor 26 side is F1 and the total pressing force of the suction port body 5 on the printed circuit board 27 side is F2, Q1 + f to obtain F1 = F2.
It is set so that 1 = Q2 + f2.

A reduction gear 28 composed of a plurality of gears is provided on one side of the motor 26. The reduction gear 28 is provided with a pair of output shafts 28a and 28b as shown in FIG. A timing belt 29 is stretched over a timing gear (not shown) provided on the output shaft 28a and a timing gear (not shown) provided on a portion near one end of the rotary cleaning body 50. A timing belt 30 is stretched over a timing gear (not shown) provided on the shaft 28b and a timing gear (not shown) provided on a portion near one end of the rotary cleaning body 60. Thus, the rotary cleaning bodies 50 and 60 are linked to the motor 26 via the reduction gear 28 and the timing belt 30 and the like. The rotary cleaning bodies 50 and 60 are rotated in opposite directions by the reduction gear 28, and the rotary cleaning body 50 is rotated in a direction of rolling forward.

As shown in FIG. 1A, the rotary connecting pipe 7 has a first connecting pipe 31 bent in a bell crank shape and a first connecting pipe 31 attached to one end of the first connecting pipe 31. It is composed of two connection pipes 32. And the first
The connection pipe 32 is detachably attached to the extension pipe 4 by fitting the other end to the extension pipe 4.

The second connection pipe 32 is connected to the first connection pipe 3
1, a cylindrical portion 32a coaxial with the axis O of the one end and rotatably mounted around the axis O, a flat cylindrical portion 32b connected to the cylindrical portion 32a, and a flat cylindrical portion 32b connected to the flat cylindrical portion 32b. It has the provided cylindrical shaft part 32c. This cylindrical shaft portion 32c
Have both ends closed, extend in a direction orthogonal to the axis O, and have both ends protruding from both sides of the flat cylindrical portion 32b.

Both ends of the cylindrical shaft portion 32c are rotatably engaged with the bearing recesses 19a and 20a, and the intermediate portion is prevented from being pulled upward by the arc-shaped pressing portion 22a at the rear of the middle case 22. I have.

The cylindrical shaft portion 32c is connected to the communication passage 23.
The inside of the rotary connection pipe 7 communicates with the communication chamber 18a via the communication passage 23 and the communication port 32d. The communication chamber 18a is provided in a portion of the lower case 8 corresponding to the rotary connection pipe 7 in the two cases 7,8.
Is formed over the Moreover, between the rear portion of the central wall portion 17 and the cylindrical shaft portion 32c (that is, the semi-cylindrical wall portion 17).
A communication passage 33 that communicates the rear communication port 21 with the communication port 32d is formed as a communication chamber behind (a rear portion a). The communication passage 33 is formed substantially at the center in the left-right direction of the suction port main body 6.

The semi-cylindrical wall portion 17a is formed with a wheel disposition chamber 17b which opens downward as shown in FIGS. 1 (a), 5 and 7, and has a left and right side inside the wheel disposition chamber 17b. An extending support shaft 34 and a center wheel 35 are provided. Both ends of the support shaft 34 are fixed to the lower case 8, and the center wheel 35 is rotatably held by the support shaft 34. The center wheel 35 is located at the center in the left-right direction of the suction port main body 6 and slightly protrudes from the lower surface of the suction port main body 6.

Recesses 36, 36 are formed in the left and right ends of the lower surface of the front edge of the suction port body 6, and support shafts 37 extending left and right in the recesses 36, 36 and having both ends fixed to the lower case 8 are formed. ,
An intermediate portion 37 is provided, and small-diameter front wheels 38, 38 provided in the recesses 36, 36 are rotatably held on the support shafts 37, 37 as edge wheels. Thereby, the front wheel 3
8, 38 are rotatably and freely rolled back and forth, and are held at the left and right ends of the front edge of the suction port body 6 so as to sandwich the communication chamber 18a. Moreover, the front wheels 38, 38 are usually separated from the cleaning surface with a slight gap.

At the rear edge of the suction port body 6, recesses 39, 39 are formed on the left and right of the rotary connection pipe 7, and extend right and left inside the recesses 39, 39, and both ends are formed at the suction port body 6.
An intermediate portion of the support shafts 40, 40 fixed to the rear wheels 41, 40 disposed in the concave portions 39, 39 is provided on the support shafts 40, 40.
41 is rotatably held. Thereby, the rear wheel 4
1, 41, inlet body 6 rotatable and rollable back and forth
It is held so as to sandwich the communication passage 33 (communication chamber) at the rear edge portion. Moreover, the rear wheels 41, 41
5 and slightly protrudes from the lower surface of the suction port main body 6, and normally comes into contact with the cleaning surface together with the center wheel 35 so that the front wheels 38 and 38 are slightly separated from the cleaning surface. The center wheel 35 and the rear wheel 41 are formed to have substantially the same diameter. Moreover, the front wheel 38 is formed to have a smaller diameter than the center wheel 35 and the rear wheel 41, and the lower end is located above the center wheel 35 and the lower end of the rear wheel 41.

Therefore, the center wheel 35 of the suction port body 6
The front wheel 38 and the front wheel 38 are provided at positions sandwiching the suction grooves 12a and 13a, and the center wheel 35 and the rear wheels 41 and 41 are connected to the suction groove 14d.
Is provided at a position sandwiching the.

The support portion of the rotary connection pipe 7 to the suction port main body 6 is disposed behind the center in the front-rear direction of the suction port main body 6 and behind the center wheel 35.

As shown in FIGS. 10 and 11, the rotary cleaning body 60 includes an aluminum rotary shaft 61 and a blade 6.
2,70.

The rotating shaft portion 61 has grooves 63 and 64 formed in a twisted state along the axis.
The position is shifted by 90 degrees between one end side and the other end side. The rotating shaft 61 is formed by extrusion, and the grooves 63 and 64 are formed to have a narrow opening side and a wide rear side, and have a substantially semicircular cross section.
a, 64a.

The blade 62 is made of an elastic resin formed by injection molding.
And a pedestal 62a having a substantially semicircular cross section and a plate-shaped blade portion 62b of a predetermined height formed integrally with the pedestal 62a and projecting from the groove 63. Have. A linear projection 62c extending in the axial direction is formed on both surfaces on the tip side of the blade portion 62b. The protrusions 62c are provided to enhance the scraping effect when the blade 62 scrapes dust adhered to a carpet or the like. The blade portion 62b is set so as not to contact the floor when the surface to be cleaned is the floor.

The blade 70 includes a resin mounting portion 71 and a cleaning member 80 made of a polyester cloth as shown in FIG. 12, and when the rotary cleaning body 60 rotates as shown in FIG. The diameter R1 of the cleaning member 80 is set to be larger than the diameter R2 of the blade portion 62b.

The mounting portion 71 has a pedestal 72 inserted into the holding portion 64b of the groove 64 of the rotating shaft portion 61, and a holding portion 73 formed integrally with the pedestal 72. The holding portion 73 holds the cleaning member 80. The height of the holding portion 73 is such that the rotation diameter R3 of the holding portion 73 is equal to the blade portion 62b.
And the outer diameter of the rotating shaft portion 61 are set to be smaller than 1/2.

The holding portion 73 includes a projecting portion 73a projecting from both ends in the longitudinal direction of the cleaning member 80, and a projecting portion 73a.
a, a protruding portion 73b protruding from the back surface 80a of the cleaning member 80 to the side.

When the rotary cleaning body 60 rotates, the surface of the cleaning member 80 that comes into contact with the floor surface is a raised surface 80b, and the back surface 80a is a woven surface. Further, the cleaning member 80 is attached in a state where its lower part (in FIG. 12) penetrates to the bottom of the pedestal 72 and is clamped by the pedestal 72. By integrally molding the cleaning member 80 and the mounting portion 71,
The cleaning member 80 is attached to the attachment portion 71.

For example, as shown in FIG. 13 to FIG.
Is molded integrally by sandwiching the movable mold 92 between the fixed mold 91 and the movable mold 92 of the injection mold 90 for injection molding. 94a,
94b is a molding surface for molding the pedestal 72 of the mounting portion 71;
Is a molding surface on which the holding portion 73 of the mounting portion 71 is formed.

In this embodiment, when the resin is injected from the spool 93, first, the resin runs on the raised surface 80b and along the longitudinal direction, and thereafter, the back surface 80a, And the pedestal 72 is formed. As described above, since the resin runs from both ends in the longitudinal direction of the cloth 81 to the back surface 80a of the cloth 81, the width L of the resin flowing to the back surface is small. 81 does not turn over.

The holding portion 73 of the mounting portion 71 is
Since it is integrally molded in a state in contact with the raised surface 80b,
The adhesive strength between the holding portion 73 and the cloth 81 is improved.

After the mounting portion 71 and the cloth 81 are integrally formed in this manner, XX, YY shown in FIG.
Is used to cut the fabric 81. With this cutting,
The cleaning member 80 penetrates to the bottom of the pedestal 72.

As shown in FIG. 16, the rotary cleaning body 50
It is composed of a rotating shaft 51 made of aluminum and a blade 52. Since the rotating shaft 51 and the blade 52 have the same configuration as the rotating shaft 61 and the blade 62 of the rotary cleaning body 60, the description thereof is omitted.

Next, the suction port body 5 constructed as described above
The operation of will be described.

First, the power is turned on and the electric blower of the cleaner body 1 is driven. By this driving, the dust collecting chamber becomes negative pressure, and the suction grooves 12a, 13a, 14d and the like of the suction port body 5 become negative pressure through the hose 2, the extension pipes 3, 4 and the like. Dust is sucked by this negative pressure.

Next, the motor 26 of the suction port body 5 is driven to rotate the rotary cleaning bodies 50 and 60 at high speed. The dust attached to the carpet or the like is scraped up by the high-speed rotation of the rotary cleaning bodies 50 and 60, and the scraped-up dust is sucked into the suction groove 12.
a, 13a, 14d, the extension pipes 4, 3 and the hose 2 are sucked into the dust collecting chamber of the cleaner body 1.

The rotary cleaning body 60 rotates in the direction opposite to the direction in which the suction port body 5 advances,
3 is set to be smaller than 1/2 of the outer diameter of the rotating shaft portion 61 and R2, the holding portion 73 does not come into strong contact with the carpet or the like. It does not become a load when moving forward. Further, since the height of the holding portion 73 is set lower than the height of the cleaning member 80, only the cleaning member 80 comes into contact with the carpet or the like, and the cleaning member 80
Due to the large deflection of the cleaning member 80, the cleaning member 80 does not become a load when moving forward.

Further, since the cleaning member 80 is attached to the pedestal 72 so as to penetrate the pedestal 72 by integral molding, the holding force of the pedestal 72 with respect to the cleaning member 80 is increased. 80 is prevented from falling out of the pedestal 72. In addition, since the cleaning member 80 is attached to the pedestal 72, the holding portion 73 does not need to sandwich the cleaning member 80, and therefore, the thickness of the holding portion 73 can be reduced. Flexibility can be obtained, and the holding portion 73 is a rotary cleaning body 60
Does not receive a strong load from a carpet when rotating at high speed. As a result, wear of the cleaning member 80 is reduced.

Further, since the pedestal 72 protrudes from both ends in the longitudinal direction of the cleaning member 80, when the rotary cleaning body 60 is rotated at a high speed, the lower end portions of the cleaning member 80 attached to the pedestal 72 are carpeted. Do not touch For this reason,
Both ends of the cleaning member 80 are prevented from peeling off the pedestal 72 and coming off.

The holding portion 73 has a protruding portion 73a protruding from both ends in the longitudinal direction of the cleaning member 80, and a protruding portion 73b protruding from the protruding portion 73a to the back surface 80a of the cleaning member 80. As a result, the cleaning member 80 does not easily peel off from the end of the holding portion 73.

When the flooring or the like is cleaned, the blades of the rotary cleaning members 50 and 60 are set so as not to abut on the floor and only the cleaning member 80 contacts the floor. Damage is prevented, and the raised surface of the cleaning member 80 polishes the floor.

[0055]

As described above, according to the first aspect of the present invention, the pedestal is integrally formed with the cleaning member, and the cleaning member is attached to the pedestal so as to pass through the pedestal. Of the cleaning member is prevented from falling out of the pedestal even when the rotary cleaning body of the cleaning member rotates at a high speed.

According to the second aspect of the present invention, since both ends in the longitudinal direction of the pedestal protrude from both ends in the longitudinal direction of the cleaning member, the cleaning member is less likely to peel off from both ends in the longitudinal direction.

According to the third aspect of the present invention, a holding portion for holding the cleaning member is provided on the pedestal, and both ends in the longitudinal direction of the holding portion are projected from both ends in the longitudinal direction of the cleaning member. Is projected to one side, so that both ends in the longitudinal direction of the cleaning member are prevented from being separated from the holding portion.

According to the fourth aspect of the present invention, since one side of the cleaning member is raised, the adhesive strength between the holding portion and the cleaning member is improved.

According to the fifth aspect of the present invention, since the height of the holding portion is lower than the height of the cleaning member, the cleaning member comes into contact with the carpet or the like, and the bending of the cleaning member is large. Wear of the cleaning member is small.

[Brief description of the drawings]

FIG. 1 (a) is a sectional view taken along line AA of a suction port according to the present invention shown in FIG. (b) is sectional drawing which follows the BB line of the suction opening body of FIG. 10C is a cross-sectional view of the suction port body of FIG. 9 taken along the line CC.

FIG. 2A is a side view of the suction port shown in FIG. 9;
FIG. 2B is an explanatory diagram of the motor in which a part of FIG.

FIG. 3 is a schematic plan view of the suction port body shown in FIGS. 1 and 9 with the upper case removed, as viewed from above.

FIG. 4 shows a rotary connection pipe, a motor, and a printed circuit board of FIG.
It is a top view of the lower case shown in the state where a rotary cleaning body etc. were omitted.

FIG. 5 is a bottom view of the suction port shown in FIG.

FIG. 6 is a bottom view of the suction port body with the rotary cleaning body shown in FIG. 5 omitted.

FIG. 7 is a view showing a state in which the rotary cleaning body shown in FIG.
FIG. 3 is an explanatory view taken along a line.

FIG. 8 is a diagram showing a state in which the rotary cleaning body shown in FIG.
FIG. 3 is an explanatory view taken along a line.

FIG. 9 is a schematic perspective view showing the relationship between the suction port having the structure shown in FIGS.

FIG. 10 is a perspective view showing a rotary cleaning body.

FIG. 11 is a sectional view of a rotary cleaning body.

FIG. 12 is a perspective view showing a configuration of a blade.

FIG. 13 is an explanatory diagram showing a relationship between a mold and a cloth when the blade is integrally formed.

FIG. 14 is an explanatory diagram when fabric and a pedestal are integrally formed.

FIG. 15 is an explanatory diagram illustrating a flow of a resin injected into a mold.

FIG. 16 is a cross-sectional view illustrating a configuration of a rotary cleaning body.

FIG. 17 is a cross-sectional view showing a conventional suction port body.

FIG. 18 is a cross-sectional view showing a part of a conventional rotary cleaning body.

[Explanation of symbols]

 6 Suction port main body 60 Rotary cleaning body 61 Rotary shaft part 62 Blade 63 Groove 64 Groove 70 Blade 72 Pedestal 73 Holding part 80 Cleaning member

──────────────────────────────────────────────────の Continued on front page (72) Inventor Ikuo Oshima 43 Horiyamashita, Hadano-shi, Kanagawa Prefecture Inside Tech Hadano Plant (72) Inventor Yukio Ichino 43-Horiyamashita, Hadano-shi, Kanagawa Prefecture Inside Tech Hatano Plant, Inc. (56) References JP-A-6-30863 (JP, A) JP-A-4-361724 (JP, A) JP-A-7-178016 (JP, A) JP-A-5-137677 (JP, A) Kaihei 7-327881 (JP, A) (58) Field surveyed (Int. Cl. ⁷ , DB name) A47L 9/04

Claims (5)

(57) [Claims] 1. A rotary cleaning body disposed in a position facing the suction opening in a suction port main body having a suction opening formed on a bottom surface for sucking dust, the rotary cleaning body being disposed in an axial direction. A rotary shaft having a plurality of grooves along the plurality of blades, and a plurality of blades inserted and held in each of the grooves, wherein at least one of the plurality of blades is the groove A cleaning member of the fabric projecting from the predetermined height and extending along the groove, and a resin pedestal extending along the groove and attached to the cleaning member and attached and held in the groove, A suction port body, wherein a pedestal is integrally formed with a cleaning member and the cleaning member is attached in a state of being penetrated through the pedestal. 2. The suction port body according to claim 1, wherein at least one of the longitudinal ends of the pedestal protrudes from the longitudinal end of the cleaning member. 3. A holding portion, which protrudes from the groove and extends along the groove, is provided on the pedestal for holding the cleaning member by being adhered to one surface of the cleaning member when integrally formed. The suction port body according to claim 1, wherein both ends in the direction protrude from both ends in the longitudinal direction of the cleaning member, and protrude toward the other one surface side of the cleaning member. 4. A suction port according to claim 3, wherein one side of said cleaning member is raised. 5. The suction port according to claim 3, wherein the height of the holding portion is lower than the height of the cleaning member.