JP3222364B2 - 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 vacuum cleaner provided with a rotary cleaning body.

[0002]

2. Description of the Related Art A suction port provided with a rotary cleaning body 100 as shown in FIGS. 18 to 20 is conventionally known.

[0003] The rotary cleaning body 100 includes a rotating shaft 101 made of aluminum, a blade 102 made of resin, and a rotating shaft 101.
Fixing members 110 and 111 that are attached to both ends of the
And a holding member 112 for rotatably holding both ends of the rotating shaft 101.

The rotating shaft 101 has four grooves 103 formed along the axis and twisted, and the base 102A of the blade 102 is inserted into the grooves 103.

[0005] The fixed member 110 is formed with a gear 110A for rotating the rotary cleaning body 100. The blade 102 includes a blade 102 extending from the base 102A.
B.

In order to assemble the rotary cleaning body 100, first, a fixing member 110 and a holding member 112 are attached to one end of the rotary shaft 101 as shown in FIG. And
As shown in FIG. 19, the base 102A of the blade 102 is inserted into the groove 103 from the other end of the rotating shaft 101 and is moved along the groove 103 in the direction of the arrow, so that the blade 102 is rotated as shown in FIG. Attached to the unit 101.
Next, the blade 102 is fixed by penetrating and attaching the fixing member 111 to the other end of the rotating shaft 101. Further, the holding section 112 is attached to the other end of the rotating shaft section 101.

[0007]

By the way, in such a rotary cleaning body 100, when rotating, the blade portion 102B of each blade 102 scrapes up dust adhering to a carpet or the like. Is a floor plate, the blade 102B is set so as not to abut the floor so as not to damage the floor plate. For this reason, dust adhering to the floorboard cannot be scraped up.

[0008] Therefore, there has been proposed an apparatus in which the blade 102B is made of cloth so that dust adhering to the floorboard can be scraped up without damaging the floorboard. In this case, if one side of the fabric that comes into contact with the floor plate is raised, dust can be further scraped up.

However, the blade 102 can be inserted into the groove 103 from the other end of the rotating shaft 101 from either end. For this reason, if the blade 102 is mistakenly inserted into the groove 103 of the rotating shaft 101 from the opposite end, there is a problem that the brushed surface does not come into contact with the floor when the rotating cleaning body 100 rotates. .

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and has as its object to insert a blade into a groove of a rotating shaft from the opposite end by mistake and assemble a rotating cleaning body. The object is to provide a suction port body which does not have any problem.

[0011]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a suction opening body having a suction opening formed on a bottom surface for sucking dust, and the suction opening faced inside the suction opening body. A rotary cleaning element disposed at a position, the rotary cleaning element has a rotary shaft portion having a plurality of grooves along the axial direction, a plurality of blades inserted into each of the grooves, And two fixing members attached to both ends to fix the blade inserted into the groove from both sides, wherein one of the fixing members is provided with a gear for rotating the rotary cleaning body, At least one of the plurality of blades is inserted into the groove and extends along the groove; and a resin pedestal is attached to the pedestal, protrudes from the groove, extends along the groove, and has one surface. Brushed cloth A cleaning member having a predetermined height, extending along the groove, and adhering to one surface of the cleaning member to hold the cleaning member on the pedestal; First and second protrusions are provided at both ends in the longitudinal direction and project from both ends in the longitudinal direction of the cleaning member, and the first and second protrusions are formed to have different thicknesses from each other. A second concave portion having a width corresponding to the thickness of the second protruding portion, the first concave portion having a width corresponding to the thickness of the second protruding portion and having a width corresponding to the thickness of the second protruding portion; A second concave portion with which the second fixing member engages is provided on the other fixing member.

[0012]

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 vacuum cleaner main body of a vacuum cleaner, 2 denotes a dust collecting hose detachably mounted at one end thereof to a connection hole 1a of the vacuum 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 has 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 left and right and is formed integrally with the front side wall 10a. , A suction chamber forming wall portion 14 integrally formed with the rear side wall 10b, a motor mounting wall portion 15 connecting the suction chamber forming wall portions 12, 14, and a suction chamber forming wall portion 13, 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. A front communication port 18 is formed between the suction chamber forming walls 12 and 13 as shown in FIGS. 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 chamber) is formed, and the suction chamber forming wall portion 1 is formed.
Suction chambers 12a and 13a are formed in the lower parts 2 and 13 and open downward and communicate with the communication chamber 18a. The cross-sectional area of the communication chamber 18a is formed larger than the cross-sectional areas of the left and right suction chambers 12a and 13a (see FIG. 8). The communication chamber 18 a is formed to be longer on the side opposite to the motor mounting wall 15, that is, on the substrate mounting wall 16 side than the motor mounting wall 15 side. The lower portions of the suction chambers 12a and 13a and the communication chamber 18a are suction openings for sucking dust. The suction chambers 12a, 13a and the communication chamber 18a form a first suction chamber 90, which is a suction groove having a suction opening formed on the bottom surface, and the rotary cleaning body 50 has the opening in the first suction chamber 90. It is arranged facing.

The suction chamber forming walls 12, 13 and the left and right portions 14a, 14b of the suction chamber 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. 1A, but the upper wall portion is formed flat. Inside the suction chamber forming wall portion 14, a suction chamber 14d, which is a suction groove extending left and right, is formed. The suction chamber 14d has an opening on the bottom surface for sucking dust, and a rotary cleaning body 60 is arranged in the suction chamber 14d so as to face the opening.

The central wall portion 17 has a semi-cylindrical wall portion 17a located at the front and bulging upward as shown in FIG. 1A, and a flat portion 17b located at the rear. This central wall 17
The partition wall 1 is located at the boundary between the mounting walls 15 and 16 as shown in FIG.
9 and 20 are formed, and semicircular bearing recesses 19 a and 20 a are provided at the rear portions of the partition walls 19 and 20 at right and left intervals as support portions of 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 chamber 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 portion of the front of the central wall 17 is shown in FIG.
(a) As shown in FIGS. 3 and 7, the front wall of the central wall 17 and the middle case 22 are covered with a middle case 22 having an inverted U-shaped cross section engaged on both sides with the partition walls 19 and 20. Between the 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 the suction chamber forming walls 12, 13, and at the rear of the lower case 8, extends left and right. The rotary cleaning body 60 is rotatably held by the suction chamber forming wall portion 14. The suction chamber 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. Thereby, the suction flow rate at the left and right positions of the suction port can be increased by the action of the suction chambers 12a and 13a having a small cross-sectional area, so that the cleaning effect can be made substantially the same at 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 suction port 5 is heavier on the side where the motor 26 is provided than on the opposite side due to the weight of the motor 26, the side of the motor 26 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 on the left and right sides of the suction opening body 5, the suction force on the cleaning surface of the suction chamber 13a on the printed circuit board 27 side is larger than the suction force on the cleaning surface of the motor 26. In other words, it can be understood that the suction force of the suction chamber 12a should be smaller than the suction force of the suction chamber 13a.

Therefore, 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 chamber 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 of the arm, and the suction port 5 The left and right total pressing forces are set equal.

That is, the suction force of the suction chamber 12a on the cleaning surface is Q1, the suction force of the suction chamber 13a on the cleaning surface is Q2, the pressing force on the cleaning surface due to the weight of the motor 26 is f1, and the printed circuit 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 91A provided on a rotating shaft 61 (see FIG. 10) 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.

Further, as shown in FIG. 1A, the rotary connection pipe 7 is a first connection pipe 3 which is bent in a bell crank shape.
1 and a second connection pipe 32 attached to one end of the first connection pipe 31. The first connection pipe 32 is detachably attached to the extension pipe 4 by fitting the other end to the extension pipe 4.

The second connecting pipe 32 is connected to the first connecting 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 middle 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 installation chamber 17b which opens downward as shown in FIGS. 1 (a), 5, and 7, and extends left and right in the wheel installation chamber 17b. A 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 at 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.
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, it is slightly projected from the lower surface of the suction port main body 6 so as to normally come into contact with the cleaning surface together with the center wheel 35 so that the front wheels 38, 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. In addition, 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 lower ends of the center wheel 35 and the rear wheel 41.

Accordingly, the center wheel 35 of the suction port body 6
And the front wheels 38 are provided at positions sandwiching the suction chambers 12a and 13a, and the center wheel 35 and the rear wheels 41 and 41 are connected to the suction chamber 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 member 60 includes an aluminum rotary shaft 61 and a blade 6.
2, 70 and cylindrical fixing members 90, 91, and holding members 92, 93 for rotatably holding the rotary cleaning body 60 are provided at both ends of the rotating shaft 61. Rotary cleaning body 60
Is rotatable through the holding members 92 and 93 so as to be rotatable.
Attached to.

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.
A pedestal 62a which is inserted into the holding portion 63a and has a substantially semicircular cross section and extends along the axial direction.
2a, a blade portion 62 having a predetermined height protruding from the groove 63 and extending in the axial direction.
b. 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.

As shown in FIG. 12, the blade 70 is formed of a resin mounting portion 71 and a cleaning member 80 made of a polyester cloth. As shown in FIG. The diameter R1 of the cleaning member 80 when rotated is set to be larger than the diameter R2 of the blade portion 62b.

The mounting portion 71 is integrally formed along a longitudinal direction of the pedestal 72 with a pedestal 72 having a predetermined length inserted into the holding portion 64b of the groove 64 of the rotating shaft portion 61 along the axial direction. Holding portion 73 having a predetermined height. The holding portion 73 is for bonding and holding one surface of the cleaning member 80, and the height of the holding portion 73 is the rotation diameter R of the holding portion 73.
3 is set between the diameter R2 of the blade portion 62b and the outer diameter of the rotating shaft portion 61, and smaller than 1/2.

The holding portion 73 protrudes from both ends in the longitudinal direction of the cleaning member 80 and the back surface 80a of the cleaning member 80.
The projections 73a and 73b project to the side. As shown in FIG. 13, the thickness H2 of the projection 73b is formed to be larger than the thickness H1 of the projection 73a.

The surface of the cleaning member 80 is a raised surface 80b, and the back surface 80a is a woven surface. Also, the cleaning member 8
Numeral 0 is attached in a state where its lower part (in FIG. 12) penetrates to the bottom of the pedestal 72 and is pinched by the pedestal 72. By integrally forming the cleaning member 80 and the mounting portion 71, the cleaning member 80 is mounted on the mounting portion 71 and the raised surface 80b is adhered to the holding portion 73.

The fixing member 91 includes the timing belt 30.
Gear 91A over which the
A second recess 95 is formed to engage with the projection 73b. The fixing member 90 has a first concave portion 94 with which the protruding portion 73a of the blade 70 is engaged. First recess 94
Is set to approximately H1, and the width of the second recess 95 is approximately H2.
Is set so that the projection 73 b cannot be engaged with the first recess 94. The rotating cleaning body 50 is similar to that shown in FIG.
As shown in FIG. 5, the rotary cleaning body 60 has the same configuration as the rotary cleaning body 60 except that the rotary cleaning body 60 includes an aluminum rotary shaft portion 51 and a resin blade 52, and all the blades 52 are formed of a resin. Is omitted.

Next, a method of assembling the rotary cleaning body 60 will be described.

First, the holding member 93 is attached to one end of the rotating shaft 61 through the fixing member 91 (see FIG. 16). Then, as shown in FIG. 15, the pedestal 72 of the blade 70 is projected from the other end of the rotating shaft portion 61 to the holding portion 64a of the groove 64 (see FIG. 11).
Inserting from the side and moving along the groove 64 in the direction of the arrow, the protruding portion 73b is engaged with the concave portion 95 of the fixing member 90, and the blade 70 is attached to the rotating shaft portion 61, as shown in FIG. Other blades 70 are attached to the rotating shaft 61 in the same manner. Similarly, the pedestal 62a of the blade 62 is inserted into the holding portion 63a of the groove 63 so that the blade 62
Is attached to the rotating shaft 61.

Next, as shown in FIG.
Is attached to the other end of the rotating shaft 61 by penetrating the same, and the first concave portion 94 of the fixing member 90 is engaged with the protruding portion 73 a of the blade 70. By attaching these fixing members 90 and 91, the blades 62 and 70 are fixed to the rotating shaft 61. Then, the rotary cleaning body 60 is moved in the direction of the arrow (see FIG. 10).
When the blade 70 rotates, the raised surface 80b of the blade 70 faces the direction in which it comes into contact with the floor.

After attaching the fixing member 90, the holding member 9
2 is attached to the other end of the rotating shaft 61.

By the way, the width of the first concave portion 94 of the fixing member 90 is set smaller than the width of the second concave portion 95 of the fixing member 91 so that the protruding portion 73b of the blade 70 cannot be engaged with the first concave portion 94. Therefore, when the blade 70 is mistakenly inserted into the holding portion 64a of the groove 64 from the protruding portion 73a side of the blade 70, that is, the blade 70 is attached to the rotating shaft portion 61 so that the raised surface 80b does not contact the floor. If
Even if the fixing member 90 is inserted into the other end of the rotating shaft portion 61, the first concave portion 94 cannot be engaged with the protruding portion 73b of the blade 70.

For this reason, it is possible to prevent the blade 70 from being attached to the rotating shaft 61 and the rotary cleaning body 60 from being assembled so that the raised surface 80b faces away from the floor. In other words, the blade 70 is attached to the rotating shaft 61 so that the raised surface 80b surely faces the direction in which it comes into contact with the floor, and the rotating cleaning body 60 can be assembled.

[0052]

As described above, according to the present invention,
When the rotating cleaning body rotates, the blade can be attached to the rotating shaft so that the raised surface is surely directed to the direction in which it comes into contact with the floor, and the rotating cleaning body can be assembled.

[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 the thickness of the protruding portion of the blade.

FIG. 14 is a sectional view showing a rotary cleaning body.

FIG. 15 is an explanatory diagram showing an assembling order of the rotary cleaning body.

FIG. 16 is a perspective view showing one end of a rotary cleaning body.

FIG. 17 is a perspective view showing the other end of the rotary cleaning body.

FIG. 18 is a perspective view showing a conventional rotary cleaning body.

FIG. 19 is an explanatory view for showing an assembling order of a conventional rotary cleaning body.

FIG. 20 is a cross-sectional view showing a configuration of a conventional rotary cleaning body.

[Explanation of symbols]

 6 Suction port main body 64 Groove 70 Blade 72 Pedestal 73 Holding part 73a First protruding part 73b Second protruding part 80 Cleaning member 90 Fixing member 91 Fixing member 91 Timing gear (gear) 94 First concave portion 95 Second concave portion

────────────────────────────────────────────────── (5) References JP-A-7-327881 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) A47L 9/04

Claims (1)

(57) [Claims] A suction opening formed on a bottom surface of the suction opening for sucking dust; and a rotary cleaning body disposed in the suction main body at a position facing the suction opening. The body has a rotating shaft portion having a plurality of grooves along the axial direction, a plurality of blades inserted into each of the grooves, and a blade attached to both ends of the rotating shaft portion and inserted into the grooves from both sides. A suction port body comprising two fixing members for fixing, wherein a gear for rotating the rotary cleaning body is formed on one of the fixing members, wherein at least one of the plurality of blades is formed in the groove. A resin pedestal that is inserted and extends along the groove,
A cleaning member that is attached to the pedestal, protrudes from the groove, extends along the groove, and extends along the groove, and has one surface brushed.The cleaning member has a predetermined height and extends along the groove. Provided on the pedestal is a holding portion that holds the cleaning member by being adhered to one surface, and first and second protruding portions that protrude from both ends in the longitudinal direction of the cleaning member are provided at both ends in the longitudinal direction of the holding portion, The first and second protrusions are formed to have different thicknesses, and have a width corresponding to the thickness of the first protrusion, and have a first width.
A first concave portion with which the protruding portion is engaged is provided on the one fixing member;
A suction port body, wherein a second concave portion with which the protruding portion is engaged is provided on the other fixing member.