JP7388448B2 - cleaner - Google Patents

Description

The present invention relates to a cleaner equipped with a filter section.

Patent Document 1 below discloses a cleaner. This cleaner includes a filter section. The filter section includes a breathable filter and a holder that is harder than the filter. The filter is sewn to the holder with thread or the like.

Japanese Patent Application Publication No. 2018-68726

In the configuration of the filter section of Patent Document 1, since the filter and the holder cannot be separated, there is room for improvement in terms of cleaning performance of the filter.

An object of the present invention is to provide a cleaner with improved filter cleaning performance.

An embodiment of the present invention is a cleaner. This cleaner is
a motor having a drive shaft;
a fan that rotates by the driving force of the drive shaft;
a main body housing that houses the motor and the fan;
an air intake port provided in the main body housing and allowing airflow generated by the fan to flow into the main body housing;
a filter section that is removably attached to the main body housing so as to cover the air intake port and that collects dust to prevent it from flowing into the main body housing;
The filter section is
a breathable filter;
a holder including a first part and a second part made of a harder material than the filter and configured to be able to be assembled and separated from each other ;
The filter is fixed to the holder by being held between the first component and the second component in a state where the first component is assembled to the second component,
The holder has an engaging portion that engages with the main body housing, and the engaging portion rotates relative to the main body housing about a rotation axis , thereby attaching and detaching the filter portion to and from the main body housing. Can be attached freely,
The first component has a columnar part extending in the direction of the rotation axis, and the columnar part is inserted into the filter in the direction of the rotation axis to hold the filter in a cylindrical shape,
The second part is assembled to the first part by moving relative to the first part in the direction of the rotation axis ,
The engaging portion is not provided on the first component, but is provided on the second component .

The second component may be detachably attached to the main body housing while being assembled to the first component.

The second component may include a seal portion that seals between itself and the main body housing.

The second component includes a wall portion that extends in the radial direction and has a larger radial size around the rotation axis than the first component, and a wall portion that is disposed outside the columnar portion in the radial direction and It may also include a knob protruding from the wall in the direction of the rotation axis.

The filter is formed in a bag shape with an opening, and is fixed to the first component so that the first component fits inside the filter,
The filter portion may be attached to the main body housing such that the inside of the filter communicates with the intake port through the opening.

It has a swirling chamber that generates an airflow that swirls around a pivot axis,
The swirling chamber has an interior that communicates with the intake port and houses the filter section ,
The filter may be held in a cylindrical shape centered on the pivot axis by the first component.

The engaging portion may be arranged outside the turning chamber.

The second component is formed in an annular shape and is arranged to surround the intake port when viewed from the opening direction of the intake port, the first component is attached to the inner peripheral side of the second component, and the second component The filter may be held between the inner circumferential surface of the filter and the first component.

The filter is formed in a bag shape with an opening,
The intake port is located behind the inner circumference of the second part,
The first component is attached to the second component by entering the inner peripheral side of the second component from the rear toward the front with the filter attached so that the opening faces rearward. In addition, the filter may be sandwiched between the second component and the second component.
Another aspect of the invention is a cleaner. This cleaner is
a motor having a drive shaft;
a fan that rotates by the driving force of the drive shaft;
a main body housing that houses the motor and the fan;
an air intake port provided in the main body housing and allowing airflow generated by the fan to flow into the main body housing;
a filter section that is removably attached to the main body housing so as to cover the air intake port and that collects dust to prevent it from flowing into the main body housing;
The filter section is
a breathable filter;
a holder made of a material harder than the filter and including a first part and a second part that are detachably assembled to each other;
The filter is fixed to the holder by being held between the first component and the second component in a state where the first component is assembled to the second component,
The second component has an engaging portion that engages with the main body housing, and when the engaging portion rotates relative to the main body housing around a rotation axis, the filter portion engages with the main body housing. It can be attached and detached freely.
The first component has a columnar part extending in the direction of the rotation axis, and the columnar part is inserted into the filter in the direction of the rotation axis to hold the filter in a cylindrical shape,
The second part is assembled to the first part by moving relative to the first part in the direction of the rotation axis,
The second component includes a wall portion that extends in the radial direction and has a larger radial size around the rotation axis than the first component, and a wall portion that is disposed outside the columnar portion in the radial direction and and a knob protruding from the wall in the direction of the rotation axis.

Note that arbitrary combinations of the above components and expressions of the present invention converted between methods, systems, etc. are also effective as aspects of the present invention.

According to the present invention, it is possible to provide a cleaner with improved filter cleaning performance.

FIG. 1 is a side sectional view of cleaner 1 according to Embodiment 1 of the present invention. FIG. 2 is an enlarged sectional view of the main part of FIG. 1. FIG. 3 is a sectional view of FIG. 2 with parts other than the filter member 40 removed. FIG. 9 is a cross-sectional view of the filter member 40 cut along a different section from FIG. 3 (the section indicated by line A-A in FIG. 9(B)). V-V sectional view in Figure 1. FIG. 4 is an exploded perspective view of a filter member 40. FIG. 4 is a perspective view of a filter member 40. FIG. 8(A) is a rear view of the first holder 50 of the filter member 40. FIG. 8(B) is a sectional view taken along line B-B in FIG. 8(A). FIG. 8(C) is a front view of the first holder 50. FIG. 9(A) is a sectional view taken along line A-A in FIG. 9(B). FIG. 9(B) is a rear view of the second holder 60 of the filter member 40. FIG. 9(C) is a cross-sectional view taken along line C-C in FIG. 9(B). FIG. 9(D) is a front view of the second holder 60. FIG. 3 is a side sectional view of a cleaner 1A according to a second embodiment of the present invention. FIG. 4 is an enlarged sectional view of a filter member 40A of the cleaner 1A. XII-XII sectional view of FIG. 10. FIG. 4 is an exploded perspective view of a filter member 40A. A perspective view of a filter member 40A.

In the following, the same or equivalent components, members, etc. shown in each drawing are denoted by the same reference numerals, and redundant explanations will be omitted as appropriate. The embodiments are illustrative rather than limiting. All features and combinations thereof described in the embodiments are not necessarily essential to the invention.

(Embodiment 1) Embodiment 1 of the present invention will be described with reference to FIGS. 1 to 9. This embodiment relates to a cleaner 1. The cleaner 1 is a cordless and portable cyclone vacuum cleaner. 1 and 5, front and rear, top and bottom, and left and right directions that are orthogonal to each other in the cleaner 1 are defined. The front-rear direction is a direction parallel to the rotating shaft (drive shaft) 6a of the motor 6. The left and right directions are defined based on the case where the cleaner 1 is viewed from the front. The entire rotating shaft 6a and its extension line is also referred to as a "center axis." In FIG. 2, illustration of the dust case 3 and fan cover 20 shown in FIG. 1 is omitted.

The outer shell of the cleaner 1 is composed of a main body housing 2 and a dust case 3. Both the main body housing 2 and the dust case 3 are, for example, resin molded bodies. The dust case 3 is detachably connected and fixed to the front of the main body housing 2. The dust case 3 has an intake pipe section 3a and a swirling chamber 3c. The front end opening of the intake pipe portion 3a is an intake port (dust case intake port). An extension pipe or flexible hose (not shown) can be attached to this intake port. The intake pipe portion 3a is provided below the swirling chamber 3c. The rear ends of the intake pipe section 3a and the swirling chamber 3c communicate with each other via the valve section 3b. The valve portion 3b allows airflow from the intake pipe portion 3a to the swirling chamber 3c, while blocking airflow from the swirling chamber 3c to the intake pipe portion 3a. The airflow taken into the swirling chamber 3c from the intake pipe portion 3a becomes an airflow that swirls around the swirling axis within the swirling chamber 3c. The pivot axis coincides with the central axis. A filter member 40 is detachably mounted and housed inside the swirling chamber 3c. The rear end of the swirling chamber 3c is open. A filter member 40 is provided to cover this opening.

As shown in FIG. 5, the main body housing 2 has a left and right halves. That is, the main body housing 2 is a left main housing 2f and a right main housing 2g, which are separate parts, which are fixed to each other and integrated by screws or the like. As shown in FIG. 1, the main body housing 2 includes a housing portion 2a, a handle portion 2b, and a battery pack mounting portion 2c. The housing portion 2a is a portion corresponding to the front portion of the main body housing 2. The housing section 2a houses the motor 6, the dust collection fan 9, the fan guide 10, and the fan cover 20. The handle portion 2b is a portion extending rearward from the upper end of the housing portion 2a. The operator handles the cleaner 1 by gripping the handle portion 2b. An operation panel (switch section) 5 is provided on the upper surface of the handle section 2b. Using various switches provided on the operation panel 5, it is possible to start and stop the cleaner 1 and change the air volume of the cleaner 1. A lighting section 8 such as an LED that illuminates the front is provided at a position in front of the operation panel 5 of the handle section 2b. The battery pack mounting portion 2c is a portion corresponding to the rear lower portion of the main body housing 2. A battery pack 4, which serves as a power source for the cleaner 1, is removably mounted on the battery pack mounting portion 2c. Exhaust ports 2e are provided on both left and right side surfaces of the rear end of the main body housing 2, respectively.

As shown in FIG. 2, the main body housing 2 has a cylindrical portion 2h that projects forward at the front end. The cylindrical portion 2h is provided with a flange portion 2i that projects inward. The flange portion 2i is a plate-shaped portion perpendicular to the front-rear direction. The flange portion 2i is provided so as to go around the central axis. The inner edge of the flange portion 2i is the opening edge of the intake port (housing intake port) 2d. The intake port 2d is a circular through hole that is centered on the central axis and penetrates in the direction in which the rotating shaft 6a extends. The intake port 2d is formed across the left main housing 2f and the right main housing 2g. The intake port 2d communicates with the space within the swirling chamber 3c. The front of the intake port 2d is covered with a filter member 40.

The motor 6 is a well-known brushed electric motor. The motor 6 is configured as a unit including a motor case and bearings. The motor 6 operates with power supplied from the battery pack 4. A rear end portion of the motor 6 is supported by the main body housing 2 via an elastic body 7 for vibration isolation. A dust collection fan 9 is attached to the rotating shaft 6a of the motor 6. The dust collecting fan 9 rotates integrally with the rotating shaft 6a around the rotating shaft 6a. The rotating shaft 6a is also the central axis of the dust collecting fan 9. The dust collecting fan 9 is a centrifugal fan. The dust collecting fan 9 is housed in an internal space formed by the fan guide 10 and the fan cover 20. The outer diameters of the fan guide 10 and the fan cover 20 are larger than the outer diameter of the dust collection fan 9. The outer diameter of the dust collecting fan 9 is larger than the outer diameter of the motor case. Both the fan guide 10 and the fan cover 20 are, for example, resin molded bodies.

The fan guide 10 is fixed to the front surface of the motor 6 by screws or the like. The fan cover 20 is fixed and integrated with the fan guide 10 by claw engagement or the like. The fan guide 10 is located behind the dust collecting fan 9. The fan guide 10 has a vent (not shown) through which the airflow generated by the dust collecting fan 9 passes. The fan cover 20 has a cylindrical shape centered on the rotating shaft 6a. The rear end of the fan cover 20 is open. The front end of the fan cover 20 is not open except for an air intake port (fan cover air intake port) 21. That is, the intake port 21 is provided on the front surface of the fan cover 20. The intake port 21 is a circular through hole that is centered on the central axis and penetrates in the direction in which the rotating shaft 6a extends. The intake port 21 communicates with the space within the swirling chamber 3c.

The seal member 30 seals (airtightly closes) the space between the main body housing 2 and the fan cover 20. Specifically, the sealing member 30 contacts the inside of the intake port 2d in the main body housing 2 and the outside of the intake port 21 in the fan cover 20, thereby sealing the main body housing 2 and the fan between the intake port 2d and the intake port 21. The inside and outside of the cover 20 are sealed to prevent air from passing through. The seal member 30 also has an anti-vibration function. The seal member 30 is an elastic body such as rubber. The seal member 30 is formed in an annular shape centered on the central axis. The air intake port 2d and the air intake port 21 communicate with each other through a hole provided at the center of the seal member 30 as a communication path. Seal member 30 is arranged around intake port 21 . The outer diameter of the seal member 30 is smaller than the outer diameter of the fan cover 20. The outer diameter of the seal member 30 is larger than the outer diameter of the elastic body 7.

The filter member 40 includes a filter 41 having air permeability, a first holder 50 as a first component, and a second holder 60 as a second component. The filter 41 is made of cloth, for example. The filter 41 is formed into a bag shape with an open rear end. The filter 41 communicates with the intake port 2d of the main body housing 2 and the intake port 21 of the fan cover 20 through its own opening. The first holder 50 and the second holder 60 are made of a harder material than the filter 41. Both the first holder 50 and the second holder 60 are, for example, resin molded bodies. The first holder 50 and the second holder 60 are detachably assembled to each other to form a holder that holds the filter 41. The filter 41 is held between the first holder 50 and the second holder 60 in a state where the first holder 50 is assembled to the second holder 60, so that the filter 41 is Fixed.

The first holder 50 has a cylindrical base portion 51 and a columnar portion 54 . The cylindrical base 51 has a cylindrical shape centered on the central axis. A notch 52 is provided at the rear end of the cylindrical base 51 . The notch portion 52 is an engaging portion that engages with the locking convex portion 64 of the second holder 60 . A plurality of notches 52 are provided in a circumferential direction (hereinafter also simply referred to as "circumferential direction") around the central axis. Specifically, four notches 52 are provided at 90 degree intervals in the circumferential direction. The rear end portion of the cylindrical base portion 51 is provided with a convex portion (convex stripe) 53 over the entire circumference except for the notch portion 52 . The convex portion 53 protrudes from the cylindrical base portion 51 in a radial direction (hereinafter also simply referred to as “radial direction”) centered on the central axis. The columnar portion 54 extends forward from the front end of the cylindrical base portion 51 . The columnar part 54 is a shape holding part that holds the filter 41 in a cylindrical shape centered on the rotation axis.

The second holder 60 includes a partition wall portion 61 , a first cylindrical portion 63 , and a second cylindrical portion 66 . The partition wall portion 61 has a substantially disk shape centered on the central axis and perpendicular to the central axis. The partition wall 61 forms a rear wall of the swirling chamber 3c on the outside of the filter 41. The center portion of the partition wall portion 61 is open. A pair of knobs 62 are provided on the front surface of the partition wall 61. The knob portion 62 is a protrusion that projects forward from the partition wall portion 61. The grip portion 62 is a portion for an operator to grip when attaching and removing the filter member 40 to the housing 2 .

The first cylindrical portion 63 projects rearward from the central opening edge of the partition wall portion 61 . The first cylindrical portion 63 has a cylindrical shape centered on the central axis. A locking convex portion 64 is provided on the inner peripheral surface of the first cylindrical portion 63 . As shown in FIG. 2 and the like, the locking convex portion 64 engages with the cutout portion 52 of the first holder 50. As shown in FIG. The engagement between the locking protrusion 64 and the notch 52 prevents the first holder 50 from coming off backward from the second holder 60. A plurality of locking convex portions 64 are provided in the circumferential direction. Specifically, four locking protrusions 64 are provided at 90 degree intervals in the circumferential direction. Notches 69 are provided on both sides of the locking convex portion 64 in the circumferential direction. The notch 69 is a portion cut from the rear end of the first cylindrical portion 63. The notch 69 allows the locking convex portion 64 to easily fall radially outward. A recess 65 is provided on the inner peripheral surface of the rear end portion of the first cylindrical portion 63 over the entire circumference. As shown in FIG. 4, the recess 65 engages with the protrusion 53 of the first holder 50. As shown in FIG. The engagement between the concave portion 65 and the convex portion 53 prevents the first holder 50 from coming off the second holder 60 forward.

The second cylindrical portion 66 projects rearward from the partition wall portion 61 on the radially outer side of the first cylindrical portion 63 . The second cylindrical portion 66 has a cylindrical shape centered on the central axis. Engaging portions 67 are provided at the upper and lower portions of the rear end portion of the second cylindrical portion 66, respectively. The engaging portion 67 is a portion that projects radially outward from the second cylindrical portion 66 . A protrusion 67a is provided at the circumferential center of the engaging portion 67. The protruding portion 67a protrudes radially outward from the engaging portion 67. As shown in FIG. 2, the engaging portion 67 is located on the rear side of the wall portion 2k of the main housing 2. As shown in FIG. Since the engaging portion 67 is pressed from the front by the wall portion 2k, the second holder 60 is prevented from coming off from the main body housing 2 forward. As shown in FIG. 5, the protrusion 67a fits into the recess 2j provided in the main housing 2. As shown in FIG. The second holder 60 is prevented from rotating relative to the main body housing 2 by fitting the protrusion 67a and the recess 2j. The engagement portion 67 and the main body housing 2 can be engaged and disengaged while the second holder 60 is assembled to the first holder 50. That is, the second holder 60 is detachably attached to the main body housing 2 while assembled to the first holder 50. A packing 68 serving as a seal portion is provided on the rear surface of the partition wall portion 61 between the first cylindrical portion 63 and the second cylindrical portion 66 in the radial direction. The packing 68 is an annular elastic body. The packing 68 is pressed against the entire circumference of the cylindrical portion 2h of the main body housing 2, and airtightly closes the space between the second holder 60 and the main body housing 2.

The assembly procedure of the filter member 40 will be explained. First, the columnar part 54 of the first holder 50 is inserted into the opening of the filter 41. When inserted all the way, the inner surface of the opening of the filter 41 comes close to the outer peripheral surface of the cylindrical base 51 of the first holder 50 . Subsequently, the columnar part 54 and the filter 41 are inserted into the central opening of the second holder 60. At this time, the circumferential positions of the notch 52 of the first holder 50 and the locking protrusion 64 of the second holder 60 are aligned with each other, and the holder is inserted. Then, the locking protrusion 64 bends radially outward, climbs over the cylindrical base 51, and fits into the notch 52 (engages with the notch 52) as shown in FIG. At this time, as shown in FIG. 4, the convex portion 53 of the first holder 50 and the concave portion 65 of the second holder 60 engage with each other. The rear end portion of the filter 41 is held between the outer peripheral surface of the cylindrical base 51 of the first holder 50 and the inner peripheral surface of the first cylindrical portion 63 of the second holder 60 . The filter member 40 is assembled by the above procedure.

The procedure for attaching the filter member 40 to the main body housing 2 is as follows. With the second holder 60 rotated 45 degrees clockwise about the central axis with respect to the rotational position shown in FIG. 5, the filter member 40 is assembled into the main body housing 2 from the front. Thereafter, the filter member 40 is rotated 45 degrees counterclockwise around the central axis. Then, the engaging portion 67 of the second holder 60 goes behind the wall portion 2k of the main housing 2, and the protrusion 67a fits into the recess 2j of the main housing 2. To remove the filter member 40 from the main body housing 2, the installation procedure may be reversed. That is, the filter member 40 may be rotated 45 degrees clockwise around the central axis to be separated from the main body housing 2 forward.

To disassemble filter member 40, the assembly procedure can be reversed. That is, first, the first holder 50 is pulled out backward from the second holder 60. At this time, the engagement between the locking convex portion 64 and the notch portion 52 can be released by applying a force beyond a certain level to the rear of the first holder 50 . After pulling out the first holder 50 from the second holder 60, the filter 41 is removed from the first holder 50 forward.

The operation of the cleaner 1 will be explained. When a worker operates a switch on the operation panel 5 to drive the motor 6, the dust collection fan 9 is rotated by the driving force of the motor 6. The airflow generated by the dust collecting fan 9 is taken into the swirling chamber 3c from the intake pipe section 3a. The airflow becomes a swirling flow within the swirling chamber 3c, passes through the filter member 40, and is taken into the fan cover 20 through the intake ports 2d and 21. The airflow is sucked into the inside of the dust collecting fan 9 and discharged to the outside, and is guided by the fan cover 20 and exits rearward through a vent hole (not shown) of the fan guide 10. The airflow is finally exhausted to the outside of the main body housing 2 through the exhaust port 2e. Dust that enters with the airflow from the intake port 3a is centrifuged in the swirling chamber 3c, and accumulates inside the swirling chamber 3c and outside the filter member 40. The dust that has not been centrifuged is collected by the filter 41 of the filter member 40 and accumulated inside the swirling chamber 3c and outside the filter member 40.

According to this embodiment, the following effects can be achieved.

(1) Since the filter 41 can be separated from the first holder 50 and the second holder 60, it is easy to clean the filter 41. In particular, the filter 41 can be easily washed with water, making it easier to keep the filter 41 clean. Further, since it is not necessary to replace the first holder 50 and the second holder 60 together when replacing the filter 41, waste can be reduced.

(2) When manufacturing the filter member 40, there is no need to fix the filter 41 to the holder by sewing or the like. Therefore, manufacturing of the filter member 40 becomes easy.

(3) The filter member 40 and the main body housing 2 are engaged behind the partition wall 61, that is, outside the swirling chamber 3c. That is, the structure of the engaging part 67 of the second holder 60 and the main body housing 2 that engages with it is provided outside the turning chamber 3c. Therefore, the influence of the engagement structure between the filter member 40 and the main body housing 2 on the swirling flow in the swirling chamber 3c can be suppressed, and the efficiency of centrifugal separation of dust can be improved.

(Embodiment 2) Embodiment 2 of the present invention will be described with reference to FIGS. 10 to 14. This embodiment relates to a cleaner 1A. The cleaner 1A is a cordless, portable, non-cyclone vacuum cleaner. Hereinafter, differences from Embodiment 1 will be mainly explained. The front end of the dust case 3 is provided with an intake port (dust case intake port) 3d. An extension pipe or flexible hose (not shown) can be attached to the intake port 3d. A filter member 40A is removably provided inside the dust case 3.

The first holder 50 of the filter member 40A has a through hole 52A in the cylindrical base 51. The through hole 52A is an engaging portion that engages with the locking convex portion 64 of the second holder 60. A plurality of through holes 52A are provided in the circumferential direction. Specifically, four through holes 52A are provided at 90 degree intervals in the circumferential direction. The through hole 52A replaces the notch 52 of the first embodiment. Engaging portions 57 are provided at the upper and lower portions of the rear end portion of the cylindrical base portion 51, respectively. The engaging portion 57 is a portion that projects radially outward from the cylindrical base portion 51. A protrusion 57a is provided at the circumferential center of the engaging portion 57. The protruding portion 57a protrudes radially outward from the engaging portion 57. The engaging portion 57 and the protruding portion 57a replace the engaging portion 67 and the protruding portion 67a of the first embodiment. That is, in this embodiment, the engagement structure with the main body housing 2 is provided in the first holder 50. A packing 58 serving as a seal is provided at the rear end of the cylindrical base 51. The packing 58 is an annular elastic body. The packing 58 is pressed against the entire circumference of the front surface of the main body housing 2 to airtightly close the space between the first holder 50 and the main body housing 2. This embodiment can also produce effects similar to effects (1) and (2) of Embodiment 1.

Although the present invention has been described above using the embodiments as examples, those skilled in the art will understand that various modifications can be made to each component and each processing process of the embodiments within the scope of the claims. By the way. For example, the cleaner of the present invention may be of a corded type that operates with power supplied from an external AC power source. The motor may be a brushless motor.

1, 1A...Cleaner (vacuum cleaner), 2...Main housing, 2a...Accommodation part, 2b...Handle part, 2c...Battery pack mounting part, 2d...Intake port (housing intake port), 2e...Exhaust port, 2f... Left housing, 2g... Right housing, 2h... Cylindrical part, 2i... Flange part, 2j... Recessed part, 2k... Wall part, 3... Dust case, 3a... Intake pipe part, 3b... Valve part, 3c... Turning chamber, 3d ...Intake port (dust case intake port), 4...Battery pack, 5...Operation panel (switch section), 6...Motor, 6a...Rotating shaft (drive shaft), 7...Elastic body, 8...Lighting section, 9...Collection Dust fan, 10... Fan guide, 20... Fan cover, 21... Intake port (fan cover intake port), 30... Seal member, 40, 40A... Filter member, 41... Filter, 50... First holder (first part) , 51... Cylindrical base, 52... Notch (engaging part), 52A... Through hole (engaging part), 53... Convex part (convex strip), 54... Column-shaped part, 57... Engaging part, 57a... Projection, 58... Packing (sealing part), 60... Second holder (second part), 61... Partition wall, 62... Knob, 63... First cylindrical part, 64... Locking convex part, 65... Recessed part, 66... Second cylindrical part, 67... Engaging part, 67a... Projection part, 68... Packing (seal part), 69... Notch.

Claims (10)

a motor having a drive shaft;
a fan that rotates by the driving force of the drive shaft;
a main body housing that houses the motor and the fan;
an air intake port provided in the main body housing and allowing airflow generated by the fan to flow into the main body housing;
a filter section that is removably attached to the main body housing so as to cover the air intake port and that collects dust to prevent it from flowing into the main body housing;
The filter section is
a breathable filter;
a holder including a first part and a second part made of a harder material than the filter and configured to be able to be assembled and separated from each other ;
The filter is fixed to the holder by being held between the first component and the second component in a state where the first component is assembled to the second component,
The holder has an engaging portion that engages with the main body housing, and the engaging portion rotates relative to the main body housing about a rotation axis , thereby attaching and detaching the filter portion to and from the main body housing. Can be attached freely,
The first component has a columnar part extending in the direction of the rotation axis, and the columnar part is inserted into the filter in the direction of the rotation axis to hold the filter in a cylindrical shape,
The second part is assembled to the first part by moving relative to the first part in the direction of the rotation axis ,
The cleaner , wherein the engaging portion is not provided on the first component but is provided on the second component . The cleaner according to claim 1 , wherein the second component is removably attached to the main body housing while being assembled to the first component. The cleaner according to claim 1 or 2 , wherein the second component has a seal portion that seals between itself and the main body housing. The second component includes a wall portion that extends in the radial direction and has a larger radial size around the rotation axis than the first component, and a wall portion that is disposed outside the columnar portion in the radial direction and The working machine according to any one of claims 1 to 3 , further comprising a knob projecting from a wall in the direction of the rotation axis. The filter is formed in a bag shape with an opening, and is fixed to the first component so that the first component fits inside the filter,
The cleaner according to any one of claims 1 to 4 , wherein the filter section is attached to the main body housing so that the inside of the filter communicates with the intake port through the opening. It has a swirling chamber that generates an airflow that swirls around a pivot axis,
The swirling chamber has an interior that communicates with the intake port and houses the filter section ,
The cleaner according to claim 5 , wherein the filter is held in a cylindrical shape centered on the pivot axis by the first component. The cleaner according to claim 6 , wherein the engaging portion is located outside the swirling chamber. The second component is formed in an annular shape and is arranged to surround the intake port when viewed from the opening direction of the intake port,
the first component is attached to the inner peripheral side of the second component,
The cleaner according to any one of claims 1 to 7 , wherein the filter is sandwiched between an inner circumferential surface of the second component and the first component. The filter is formed in a bag shape with an opening,
The intake port is located behind the inner circumference of the second part,
The first component is attached to the second component by entering the inner peripheral side of the second component from the rear toward the front with the filter attached so that the opening faces rearward. The cleaner according to claim 8 , wherein the filter is also sandwiched between the filter and the second component. a motor having a drive shaft;
a fan that rotates by the driving force of the drive shaft;
a main body housing that houses the motor and the fan;
an air intake port provided in the main body housing and allowing airflow generated by the fan to flow into the main body housing;
a filter section that is removably attached to the main body housing so as to cover the air intake port and that collects dust to prevent it from flowing into the main body housing;
The filter section is
a breathable filter;
a holder made of a material harder than the filter and including a first part and a second part that are detachably assembled to each other;
The filter is fixed to the holder by being held between the first component and the second component in a state where the first component is assembled to the second component,
The second component has an engaging portion that engages with the main body housing, and when the engaging portion rotates relative to the main body housing around a rotation axis, the filter portion engages with the main body housing. It can be attached and detached freely.
The first component has a columnar part extending in the direction of the rotation axis, and the columnar part is inserted into the filter in the direction of the rotation axis to hold the filter in a cylindrical shape,
The second part is assembled to the first part by moving relative to the first part in the direction of the rotation axis,
The second component includes a wall portion that extends in the radial direction and has a larger radial size around the rotation axis than the first component, and a wall portion that is disposed outside the columnar portion in the radial direction and A cleaner comprising: a knob protruding from a wall in the direction of the rotation axis.

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