JP2010252980A - Suction port body and vacuum cleaner - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a floor brush which suppresses the decline of the rotation of a rotary brush accompanying the intrusion of dust. <P>SOLUTION: The shaft bodies 47, 48 of the rotary brush 39 are inserted from one end side to bearing covers 97, 97 of a rotary brush holding part 40. Bearings 98, 98 are forcibly fitted from the other end side into the bearing covers 97, 97. At a position more on the one end side than the bearings 98, 98 of the bearing covers 97, 97, engaging parts 103, 103 for preventing the detachment of the rotary brush 39 are projected to the side of the shaft bodies 47, 48. The intrusion of dust from the end part of the bearing covers 97, 97 is suppressed, and the decline of the rotation of the rotary brush 39 accompanying the intrusion of the dust is suppressed. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a suction port body having a substantially cylindrical rotary cleaning body in which a shaft portion is rotatably held by a rotary cleaning body holding portion, and a vacuum cleaner provided with the same.

  Conventionally, a floor brush as a suction port used in a vacuum cleaner includes a horizontally long case body and a connecting pipe that is rotatably connected to a rear portion of a central region in the left-right width direction of the case body. Yes. A horizontally long suction port is formed as an opening on the lower surface of the case body that faces the floor surface to be cleaned. In this suction port, for example, a rotary brush as a rotary cleaning body for scraping out dust on the floor surface such as a carpet is rotatably arranged. The rotating brush is driven to rotate by a motor as a driving source disposed in the case body (see, for example, Patent Document 1).

  Specifically, as shown in FIGS. 5 and 6, the rotating brush 1 includes a brush base 2 as an elongated attachment member, and cylindrical holding members 3 are provided at both ends of the brush base 2. , 4 are attached. Inside the holding members 3 and 4, shaft bodies 5 and 6 as shaft portions are coaxially arranged by insert molding or the like. Moreover, the edge part which protrudes from the holding members 3 and 4 of the shaft bodies 5 and 6 is penetrated by the bearing covers 7 and 7 as a cylindrical to-be-fixed part. Further, bearings 8 and 8 are press-fitted into the bearing covers 7 and 7, and the inner peripheral surfaces of the bearings 8 and 8 rotatably hold the outer peripheral surfaces of the shaft bodies 5 and 6. The bearing covers 7 and 7 are formed with protruding engagement portions 9 and 9 for preventing the shaft bodies 5 and 6 from coming off.

Japanese Patent Laying-Open No. 2004-261285 (page 3-6, FIG. 4)

  However, in the floor brush described above, the bearings 8 and 8 are press-fitted to the holding member 3 side of the bearing covers 7 and 7, and the engaging portions 9 and 9 are formed on the end side of the bearings 8 and 8. As shown in FIGS. 5 (a) and 5 (b), there is a gap between the inner peripheral surface of the bearing covers 7 and 7 and the outer peripheral surface of the ends of the shaft bodies 5 and 6 protruding from the bearings 8 and 8. Each G is formed. For this reason, dust is sucked into these gaps G due to the negative pressure caused by the operation of the electric blower, and the sucked dust may enter between the bearing covers 7 and 7 and the outer peripheral surfaces of the shaft bodies 5 and 6. For example, there is a possibility of adversely affecting the rotation of the rotating brush 1.

  This invention is made in view of such a point, and it aims at providing the suction inlet body which suppressed the rotational fall of the rotary cleaning body accompanying the penetration | invasion of dust, and a vacuum cleaner provided with the same. .

  The present invention includes a rotary cleaning body holding portion disposed in a case body, and a substantially cylindrical rotary cleaning body having a shaft portion rotatably held by the rotary cleaning body holding portion and facing a suction port. Then, the rotary cleaning body holding part is press-fitted from the other end side into the fixed part with the cylindrical part inserted through the shaft part from one end side, and the outer surface of the shaft part is fixed inside the fixed part. A bearing that is rotatably held, and an engaging portion that protrudes toward the shaft portion at a position closer to one end than the bearing of the fixed portion, and that prevents the rotary cleaning body from coming off.

  According to the present invention, the shaft portion of the rotary cleaning body is inserted into the fixed portion of the rotary cleaning body holding portion from one end side, and the bearing is press-fitted into the fixed portion from the other end side, and moreover than the bearing of the fixed portion. The engagement part that prevents the rotary cleaning body from coming off at the position on one end side protrudes toward the shaft part side, so that the intrusion of dust from the end of the fixed part is suppressed, and the rotation that accompanies this dust intrusion. It is possible to suppress a decrease in the rotational performance of the cleaning body.

FIG. 2 is an enlarged cross-sectional view showing a main part of a rotary cleaning body of a suction port body according to an embodiment of the present invention, (a) showing one end side of the rotary cleaning body, and (b) showing another part of the rotary cleaning body. Indicates the end side. It is sectional drawing which shows the suction inlet body which attached the rotary cleaning body same as the above. It is a top view which shows a suction inlet same as the above. It is a perspective view of the vacuum cleaner provided with the suction inlet body same as the above. It is sectional drawing which expands and shows the principal part of the rotary cleaning body of the suction inlet body of a prior art example, (a) shows the one end side of a rotary cleaning body, (b) shows the other end side of a rotary cleaning body. It is sectional drawing of a rotary cleaning body same as the above.

  Hereinafter, the configuration of an embodiment of the present invention will be described with reference to FIGS.

  In FIG. 4, reference numeral 11 denotes a so-called canister-type vacuum cleaner. The vacuum cleaner 11 includes a pipe part 12 and a vacuum cleaner body 13 to which the pipe part 12 is detachably connected.

  The pipe part 12 includes a connection pipe part 15 whose front end side is bent forward with respect to a base end side connected to the cleaner body 13, and a flexible hose body 16 communicating with the front end side of the connection pipe part 15. A hand operating part 17 provided on the front end side of the hose body 16, an extension pipe 18 detachably connected to the front end side of the hand operating part 17, and a hand attached to the front end side of the extension pipe 18 And a floor brush 19 as a suction port to be connected.

  On the hand operating portion 17, a gripping portion 21 protrudes toward the hose body 16, and the gripping portion 21 is provided with a plurality of setting buttons 22 for operation.

  In addition, an electric blower 24 is housed inside the cleaner body 13 and a main body dust collecting chamber 25 communicating with the suction side of the electric blower 24 is formed. Further, in the main body dust collection chamber 25, a dust collection unit (not shown) such as a paper pack as a dust collection bag or a dust collection cup as a dust collection device is detachably disposed. Further, a main body lid 27 that can open and close the main body dust collecting chamber 25 is provided on the upper part of the front side of the cleaner body 13. On both sides of the cleaner body 13, large-diameter traveling wheels 28 (only one is shown) are rotatably attached.

  The main body lid 27 is provided with a main body suction port 29 to which the proximal end side of the hose body 16 (connection pipe portion 15) is detachably connected so as to communicate with the main body dust collecting chamber 25.

  The electric blower 24 is operated in a predetermined operation mode set by the setting button 22 by a control circuit (not shown) which is a control means in the vacuum cleaner body 13, and sucks dust together with air through the pipe portion 12. . The electric blower 24 and the control circuit are supplied with power from, for example, a commercial AC power supply or a secondary battery built in the cleaner body 13.

  The floor brush 19 includes a case body 31 that is long in the left-right width direction, that is, a horizontally long case body 31, and a connecting pipe 32 that is connected to the case body 31.

  The case body 31 includes a lower case 34 that is open on the upper side, an upper case 35 that covers the upper side of the lower case 34, and a front cover 36 that is pivotally supported on the front portion of the upper case 35. ing.

  As shown in FIG. 2, the lower case 34 has a horizontally long suction port 38 cut out at the front end portion of the horizontally long bottom surface constituting the lower surface of the case body 31. A rotating brush 39 as a rotating cleaning body is rotatably held on the case body 31 by a rotating brush holding section 40 as a rotating cleaning body holding section.

  The rotating brush 39 is rotationally driven by a motor 42 as a driving source housed in the case body 31, and a brush base 43 as a horizontally long and long mounting member corresponding to the suction port 38, The plurality of cleaning members 44 attached to the outer peripheral surface of the brush base 43, the substantially cylindrical holding members 45 and 46 attached to both ends of the brush base 43, and the holding members 45 and 46, for example, insert molding And substantially cylindrical shaft bodies 47 and 48 as shaft portions attached integrally.

  The brush base 43 is formed in a substantially cylindrical shape by a member such as synthetic resin or aluminum, for example, and the recesses 54 that are grooves for attaching the cleaning members 44 along the axial direction (longitudinal direction) are provided at both ends. It is formed continuously over the gap. These recesses 54 may be linear along the axial direction of the brush base 43, or may be spirals twisted in the circumferential direction.

  The cleaning member 44 is, for example, a blade that is a wiping member, a brush hair that is a scraping member, or a combination thereof. Projecting like a wall.

  As shown in FIG. 1 (a), one holding member 45 is formed integrally with a cylindrical (one) holding member main body 56 and an end of the holding member main body 56 in the axial direction on the brush base 43 side. The (one) mounting portion 57, the (one) bearing portion 58 formed integrally with the end of the holding member main body 56 on the opposite side of the brush base 43 in the axial direction, and the outer periphery of the bearing portion 58 The bearing portion 58 and a connecting portion 59 formed coaxially are provided. The holding member main body 56, the mounting portion 57, and the bearing portion 58 are formed with (one) holding hole portion 61 in which one shaft body 47 is integrally held. The one projecting portion 62 for preventing one shaft body 47 from coming off in the axial direction projects in a rib shape in the central axis direction.

  As shown in FIG. 2, the holding member main body 56 is formed between the ribs R1, R1, projecting from the lower case 34, and the ribs R2, R2 projecting from the upper case 35, and the ribs R1, R1, R2, R2 Arranged non-contact.

  Returning to FIG. 1A, the attachment portion 57 is a portion that contacts one end portion of the brush base 43. The mounting portion 57 is inserted into each concave portion 54 to fix one holding member 45 to one end portion of the brush base 43 and prevent the cleaning member 44 (FIG. 2) from coming out from the concave portion 54 in the axial direction. Each of the support portions 64 for prevention is integrally formed in a rib shape. Further, as shown in FIG. 2, the mounting portion 57 is provided between the rib R3 protruding from the lower case 34 and forming the edge of the suction port 38 and the rib R4 protruding from the upper case 35. And arranged in non-contact.

  Returning to FIG. 1 (a), the bearing portion 58 has an outer diameter smaller than that of the holding member main body 56 and is formed coaxially with the holding member main body 56. A groove-shaped notch 66 is formed on the inner peripheral side of the tip (one end) of the bearing portion 58. Further, the tip of the bearing portion 58 is in contact with the rotating brush holding portion 40 side through washers 67 and 67.

  The connecting portion 59 has a larger outer diameter than the holding member main body 56 and is located on the outer peripheral side of the bearing portion 58 with a gap 69 interposed therebetween. The connecting portion 59 has a gear-like gear portion 59a formed on the outer peripheral surface, and a belt B as a transmission member is wound between the outer peripheral surface and the rotating shaft 42a of the motor 42 shown in FIG. As a result, the driving force of the motor 42 is transmitted to the rotating brush 39.

  Further, as shown in FIG. 1B, the other holding member 46 is integrated with a cylindrical (other) holding member main body 71 and an end of the holding member main body 71 in the axial direction on the brush base 43 side. (The other) mounting portion 72, and (the other) bearing portion 73 formed integrally with the end portion of the holding member main body 71 opposite to the brush base 43 in the axial direction. The holding member body 71, the attachment portion 72, and the bearing portion 73 are formed with a holding hole portion 75 (the other) holding the other shaft body 48 integrally. The other projecting portion 76 for preventing the other shaft body 48 from coming off in the axial direction projects in a rib shape in the central axis direction.

  As shown in FIG. 2, the holding member main body 71 is disposed between the rib R5 protruding from the lower case 34 and the rib R6 protruding from the upper case 35 so as not to contact the ribs R5 and R6.

  Returning to FIG. 1B, the attachment portion 72 is a portion that contacts the other end portion of the brush base 43. The mounting portion 72 is inserted into each concave portion 54 to fix the other holding member 46 to the other end portion of the brush base 43 and to remove the cleaning member 44 (FIG. 2) from the concave portion 54 in the axial direction. (Other side) support portions 78 for preventing this are integrally formed in a rib shape. Further, as shown in FIG. 2, the mounting portion 72 is disposed in a non-contact manner with the rib R7 above the rib R7 that protrudes from the lower case 34 and forms the edge of the suction port 38.

  Returning to FIG. 1B, the bearing 73 has a larger outer diameter than the holding member main body 71 and is formed coaxially with the holding member main body 71. In addition, a flange 81 protruding in the radial direction is formed integrally with a base end portion of the bearing portion 73, that is, a portion adjacent to the holding member main body 71. Further, a fitting recess 82 into which the rotating brush holding portion 40 side is fitted is formed on the inner peripheral side of the tip portion of the bearing portion 73. As shown in FIG. 2, the bearing 73 is disposed between the rib R8 protruding from the lower case 34 and the rib R9 protruding from the upper case 35 so as not to contact the ribs R8 and R9. .

  Further, as shown in FIG. 1A, one shaft body 47 is formed of, for example, metal, and is held over the holding hole 61 or the washers 67, 67 of the one holding member 45. (One) shaft body main body 85, (one) stepped portion (one) reduced diameter portion 86 (one) as a retaining recess located at the end of this shaft body main body 85, and one bearing A (one) held portion 87 as (one) bearing fitting portion on which the outer peripheral surface is held on the inner peripheral surface of 98 is integrally formed coaxially.

  The shaft body 85 has a knurled groove 89 that is a retaining groove for retaining the outer peripheral surface, and the knurled groove 89 is engaged with the holding hole 61 so that one shaft 47 Is prevented from coming off from one holding member 45.

  The reduced diameter portion 86 is smaller in diameter than the shaft body main body 85 and the held portion 87.

  The held portion 87 has a diameter dimension substantially equal to that of the shaft body 85 and an axial dimension substantially equal to that of the one bearing 98, and the substantially entire outer peripheral surface is the inner peripheral surface of the one bearing 98. Is retained. Further, the outer peripheral surface of the held portion 87 is polished so as to be in sliding contact with the inner peripheral surface of one bearing 98 smoothly. The held portion 87 is an end portion of one shaft body 47.

  Further, as shown in FIG. 1 (b), the other shaft body 48 is formed of, for example, metal or the like, and (the other) shaft body main body held in the holding hole 75 of the other holding member 46. 91, the (other) stepped portion (the other) stepped portion located at the end of the shaft body 91 (the other) as a retaining recess, and the outer peripheral surface on the inner peripheral surface of the other bearing 98. A (other) held portion 93 as a (other) bearing fitting portion that holds the surface is integrally formed coaxially.

  The shaft body 91 has a knurling groove portion 95 that is a retaining groove portion for retaining the outer peripheral surface formed on the outer peripheral surface. When the knurling groove portion 95 is engaged with the holding hole portion 75, the other shaft body 48 is formed. Is prevented from coming off from the other holding member 46.

  The diameter-reduced portion 92 is smaller in diameter than the shaft body main body 91 and the held portion 93.

  The held portion 93 has an axial dimension substantially equal to that of the other bearing 98, and substantially the entire outer peripheral surface is held on the inner peripheral surface of the other bearing 98. Further, the outer peripheral surface of the held portion 93 is polished so as to be in sliding contact with the inner peripheral surface of the other bearing 98 smoothly. The held portion 93 forms an end portion of the other shaft body 48.

  Further, as shown in FIGS. 1 (a) and 1 (b), the rotating brush holding portion 40 includes bearing covers 97, 97 as substantially cylindrical fixed portions through which the shaft bodies 47, 48 are inserted, There are provided substantially cylindrical bearings 98 and 98 which are press-fitted into the bearing covers 97 and 97 and rotatably hold the shaft bodies 47 and 48.

  Each bearing cover 97 is formed with an insertion hole portion 101 through which the one shaft body 47 or the other shaft body 48 is inserted along the central axis. A bearing restricting portion 102 that restricts the axial position of each bearing 98 is formed in the insertion hole 101 of each bearing cover 97. Further, in this insertion hole 101, an engaging portion 103, which is a claw convex portion for preventing one shaft body 47 or the other shaft body 48 from coming off, protrudes in a rib shape toward the central axis direction. Is formed. A fitting portion 104 is integrally formed on each bearing cover 97 on the brush base 43 side.

  The bearing restricting portion 102 is in close contact with each bearing 98 in a state in which each bearing 98 is press-fitted with respect to each bearing cover 97 from the rotating brush 39 side, that is, from the side opposite to the brush base 43 (holding member 45 or holding member 46) side. is doing.

  The engaging portion 103 is located on the rotating brush 39 side, that is, the brush base 43 (holding member 45 or holding member 46) side with respect to the bearing restricting portion 102 of each bearing cover 97, and the one shaft body 47 is contracted. It faces the outer peripheral surface of the diameter portion 86 or the reduced diameter portion 92 of the other shaft body 48. The distal end side of the engaging portion 103 protrudes toward the center axis side from the held portion 87 of one shaft body 47 or the held portion 93 of the other shaft body 48, and the axial direction of the rotating brush 39 The movement to is regulated.

  The fitting portion 104 is reduced in diameter with respect to the outer peripheral surface of the bearing cover 97, and is fitted into the gap 69 of one holding member 45 or the fitting recess 82 of the other holding member 46 via a slight gap. Match.

  In addition, each bearing 98 is in close contact with the inner peripheral surface of the insertion hole 101 with almost no gap while being press-fitted into the insertion hole 101 of each bearing cover 97. That is, both end surfaces of the rotating brush 39 are closed without substantial gaps by the bearing covers 97, the bearings 98, and the held portions 87 and 93 of the shaft bodies 47 and 48. As shown in FIG. 2, the outer peripheral surface of each bearing cover 97 is ribbed from the upper case 35 at a position corresponding to the holding position of the held portions 87 and 93 of the shaft bodies 47 and 48 by the bearings 98. Are supported by the case body 31 by pressing portions 107 and 108 projecting from each other. These holding portions 107 and 108 hold down the bearing covers 97 at least downward.

  Further, the motor 42 shown in FIG. 3 is controlled for driving through the control unit 109 accommodated in the case body 31, and is disposed at a position on one side of the distal end side of the connecting pipe 32. .

  The control unit 109 is configured by mounting a control element such as a microcomputer and various circuit elements on a circuit board, for example, and is arranged at a position on the other side of the distal end side of the connection pipe 32. And this control part 109 is comprised so that the electric power feeding to the motor 42 from the cleaner body 13 (FIG. 4) side may be controlled.

  Further, as shown in FIG. 4, the front cover 36 is formed, for example, by bending in a circular arc shape in a sectional view with a synthetic resin having flexibility. The front cover 36 is not an essential configuration.

  The connection pipe 32 is detachably connected to the distal end side of the extension pipe 18. Accordingly, the floor brush 19 is connected to the suction side of the electric blower 24 through the extension pipe 18, the hose body 16, and the main body suction port 29 by the connection pipe 32.

  Next, the operation of the above embodiment will be described.

  For example, when cleaning a floor surface such as a carpet, an operator places the floor brush 19 on the floor surface, holds the gripping portion 21 in a state where the electric blower 24 is driven, and sets a desired setting button 22 The floor brush 19 is run in the front-rear direction on the floor surface in a state where the motor 42 (FIG. 3) is rotated by operating.

  The rotation of the motor 42 shown in FIG. 3 is transmitted to the connecting portion 59 shown in FIG. 1A of the rotary brush 39 via the rotary shaft 42a and the belt B, and the brush base 43 shown in FIG. The holding members 45, 46 and the shaft bodies 47, 48 are rotated in the circumferential direction with respect to the bearing cover 97 and the bearing 98, and the outer peripheral surfaces of the held portions 87, 93 of the shaft bodies 47, 48 are Slide the surface in the circumferential direction.

  Then, the cleaning member 44 scrapes off dust on the floor surface, and sucks the scraped dust together with air from the suction port 38 for cleaning.

  At this time, the negative pressure generated by the driving of the electric blower 24 (FIG. 4) is caused by the slight gap between the outer peripheral surfaces of the held portions 87 and 93 of the rotating brush 39 and the bearings 98 and 98. However, at both ends of the rotating brush 39, as shown in FIGS. 1 (a) and 1 (b), the clearance between the outer peripheral surface of the held portions 87 and 93 and the bearings 98 and 98 is Since it is hardly formed, dust does not substantially enter this gap.

  The sucked air is sucked in and is sucked together with dust from the connecting pipe 32 shown in FIG. 4 into the main dust collecting chamber 25 via the extension pipe 18, the hose body 16 and the main body suction port 29. After the dust is removed by the dust collecting unit 25 in the dust collecting chamber 25 and further sucked into the electric blower 24, it passes through the electric blower 24 to become exhaust air and is exhausted from an exhaust hole (not shown) of the cleaner body 13. The

  As described above, according to the above-described embodiment, the shaft bodies 47 and 48 of the rotary brush 39 are inserted into the bearing covers 97 and 97 of the rotary brush holding portion 40 from one end side, and the other parts are inserted into the bearing covers 97 and 97. Engaging portions 103, which press-fit the bearings 98, 98 from the end side and prevent the rotary brush 39 from coming off at a position closer to one end side (the holding members 45, 46 side) than the bearings 98, 98 of the bearing covers 97, 97. By projecting 103 toward the shaft bodies 47 and 48, the intrusion of dust from the end portions of the bearing covers 97 and 97 can be suppressed, and the decrease in the rotational performance of the rotary brush 39 due to the intrusion of dust can be suppressed. .

  That is, in the conventional example shown in FIGS. 5 (a), 5 (b) and 6, negative pressure generated by driving the electric blower 24 (FIG. 4) is transferred from the gaps G and G to both ends of the rotary brush 1. By acting, dust enters the gaps G and G, and there is a possibility that the dust is sucked between the inner peripheral surface of the bearing covers 7 and 7 and the outer peripheral surface of the shaft bodies 5 and 6, whereas FIG. In the above-described embodiment shown in FIG. 4, since the outer end portions of the bearing covers 97 and 97 are substantially closed and such a gap is not formed, the bearings 98 and 98 and the shaft bodies 47 and 48 are held. Dust does not get caught between the portions 87 and 93, that is, the portion that slides when the rotary brush 39 rotates, and the rotation can be ensured.

  Further, since dust does not enter between the bearings 98, 98 and the held portions 87, 93 of the shaft bodies 47, 48, cleaning (maintenance) of both ends of the rotary brush 39 is facilitated.

  Further, since the bearings 98 and 98 hold the outer peripheral surfaces of the held portions 87 and 93 of the shaft bodies 47 and 48 that constitute both ends of the rotating brush 39, the rotating brush 39 is more than the both ends of the rotating brush 39. Compared with the case where the rotary brush 39 is held at the position of the center side in the longitudinal direction of 39, rattling (blurring) during rotation of the rotary brush 39 can be suppressed, and the noise generated by this rattling can be reduced. Can be suppressed.

  Then, the bearing covers 97 and 97 are supported on the case body 31 by the pressing portions 107 and 108 at positions corresponding to the holding positions of the shaft bodies 47 and 48 by the bearings 98 and 98, whereby the shaft body 47 by the bearings 98 and 98 is supported. , 48 at the holding position can be regulated to prevent rattling (blurring) during rotation of the rotary brush 39 more reliably.

  In the above-described embodiment, the configuration in which the bearing cover 97 and the bearing 98 are press-fitted and fitted can be used at least at one end of the rotating brush 39 to achieve the above effects.

  In addition, as long as the rotating brush 39 has at least a shaft portion, the other portions can be arbitrarily configured.

  Furthermore, the drive source is not limited to the motor 42, and an arbitrary configuration such as an air turbine can be used.

  The details of the vacuum cleaner 11 are not limited to the above configuration, for example, the upright type in which the floor brush 19 is connected to the lower part of the vertically long vacuum cleaner body 13 as well as the canister type vacuum cleaner 11. Any vacuum cleaner such as a vacuum cleaner or a hand-held vacuum cleaner can be used.

11 Vacuum cleaner
13 Vacuum cleaner body
19 Floor brush as suction port
24 electric blower
31 Case body
38 Suction port
39 Rotating brush as rotating cleaning body
40 Rotary brush holder as rotary cleaning body holder
47, 48 Shaft as shaft
97 Bearing cover as fixed part
98 Bearing
103 Engagement part

Claims (3)

A case body with a suction port;
A rotating cleaning body holding portion disposed in the case body;
It has a shaft part rotatably held by this rotary cleaning body holding part, and comprises a substantially cylindrical rotary cleaning body facing the suction port,
The rotary cleaning body holder is
A cylindrical fixed portion in which the shaft portion is inserted from one end side;
A bearing that is press-fitted into the fixed portion from the other end side and rotatably holds the outer surface of the shaft portion inside the fixed portion;
A suction port body comprising: an engaging portion that protrudes toward the shaft portion at a position closer to one end than the bearing of the fixed portion, and that prevents the rotary cleaning body from coming off. The suction port body according to claim 1, wherein the fixed portion is supported by the case body at a position corresponding to a holding position of the shaft portion of the rotary cleaning body by the bearing. A vacuum cleaner body containing an electric blower,
A vacuum cleaner comprising: the suction port body according to claim 1 or 2 connected to a suction side of the electric blower.

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