WO2014030552A1 - Electric vacuum cleaner - Google Patents

Abstract

The dust removal mechanism (60) is provided with: a filter (50) supported by multiple ribs (53, 54); a frame (61) that axially rotates with respect to the filter (50); and dust-removing members (63, 64, 65), which are swingably supported on the frame (61) via elastic members (62) and are for removing dust on the filter (50) by intermittently contacting the ribs (53, 54) when the frame (61) is axially rotated with respect to the filter (50). The dust-removing members (63, 64, 65) comprise a main body (63a, 64a, 65a) that is supported on the frame (61) and a contacting section (63b, 64b, 65b) that extends from the main body towards the filter (50) and contacts the ribs (53, 54) when the frame (61) is axially rotated. The contacting sections (63b, 64b, 65b) are formed so that: when the frame (61) axially rotates in a specified direction and the main bodies (63a, 64a, 65a) of the dust-removing members (63, 64, 65) are not subjected to an impelling force from the elastic members (62) and the contacting sections (63b, 64b, 65b) are in contact with the ribs (53, 54), the contacting sections make contact such that the angle formed in the rotation direction between the contacting sections (63b, 64b, 65b) and the ribs (53, 54) is an acute angle; and when the frame axially rotates in the direction opposite to the specified direction and the main bodies (63a, 64a, 65a) of the dust-removing members (63, 64, 65) are not subjected to an impelling forces from the elastic members (62) and the contacting sections (63b, 64b, 65b) are in contact with the ribs (53, 54), the contacting sections make contact such that the angle formed in the rotation direction between the contacting sections (63b, 64b, 65b) and the ribs (53, 54) is an obtuse angle.

Description

Electric vacuum cleaner

The present invention relates to a dust collecting part having a dust removing mechanism or a bottom cover, and a vacuum cleaner having them.

As prior art related to the present invention, a cylindrical dust collecting container in which an air inlet containing dust is formed on the peripheral side surface to generate a swirling air current, and a spiral container that is housed in a dust collecting container so as to be axially rotatable. A compression member having a plurality of blades, an inner cylinder that is provided above the compression member and that allows the airflow after dust separation by the swirling airflow to flow inside, and an airflow that is provided above the inner cylinder and flows into the inner cylinder A filter that removes fine dust in the airflow, a dust removal mechanism that removes the filter provided on the top of the filter, and a dust removal motor that drives the dust removal mechanism, and the dust removal mechanism is driven by the dust removal motor after the cleaning operation is completed. In addition, a vacuum cleaner configured to compress dust by rotating a compression member in a dust collecting container at the same time as performing dust removal of the filter is known (for example, see Patent Document 1).

JP 2011-92472 A

Generally, a vacuum cleaner that performs dust separation by a swirling airflow is configured to pass the airflow after the dust separation is passed through a filter, collect fine dust contained in the airflow, and then exhaust the air. Yes.
Such a vacuum cleaner is equipped with a dust removal mechanism that vibrates the filter to remove dust, and is configured to drive the dust removal mechanism for a certain period of time after the cleaning operation to remove fine dust adhering to the filter. There is something.
For example, in the electric vacuum cleaner described in Patent Document 1, after the cleaning operation is finished, the dust removing mechanism is driven by the dust removing motor to remove the dust of the filter, and at the same time, the compression member is rotated in the dust collecting container to rotate the dust. Is configured to compress.
According to such an electric vacuum cleaner, dust removal of the filter and dust compression are performed after the cleaning operation is completed, so that it is possible to prevent a reduction in cleaning ability and it is easy to dispose of dust. There is a need for improved capabilities.

The present invention has been made in view of the above circumstances, and provides a dust collecting mechanism or a dust collecting part having a bottom cover useful for improving convenience and cleaning ability, and a vacuum cleaner having them. It is.

The present invention provides a filter that is supported by a plurality of ribs, a frame that rotates about the filter, and a rib that is supported by the frame via an elastic member so that the frame can rotate about the filter. A dust removing member that intermittently abuts to remove dust from the filter, and the dust removing member abuts against the rib when the frame extends from the body toward the filter and the frame rotates axially. When the frame rotates in a predetermined direction, the contact portion does not receive the urging force from the elastic member, and the contact portion contacts the rib. When the contact portion and the rib make an acute contact with the rotation direction and the shaft rotates in the direction opposite to the predetermined direction, the main body portion of the dust removing member receives a biasing force from the elastic member. Not and In a state where the abutting portion is in contact with the rib, in which a contact portion and the rib provides a dust removing mechanism the angle to make the rotational direction are formed so as to abut at an obtuse angle.

According to the present invention, a dust collection container that forms an air inlet containing dust and generates a swirling airflow is provided. The dust collection container is rotatably provided in the dust collection container and compresses dust when the shaft rotates in a predetermined direction. A compression member; and a bottom cover provided at a lower end of the dust container. The bottom cover has an inner surface that closes the lower end of the dust container, and the inner surface compresses the dust when compressing the dust. The present invention provides a dust collecting portion in which a slope rising along a direction opposite to the direction in which the member rotates is formed, and a step is formed by the end of the slope.

According to the present invention, the contact portion of the dust removing member contacts the rib at an acute angle when the frame rotates in a predetermined direction and contacts the rib at an obtuse angle when the frame rotates in the direction opposite to the predetermined direction. Formed.
For this reason, the resistance force received from the elastic member when the contact portion gets over the rib can be changed depending on the rotation direction of the frame. That is, when the abutting portion abuts against the rib at an acute angle, the abutting portion must be displaced greatly against the urging force of the elastic member in order to get over the rib, and receives a strong resistance force from the elastic member. . On the other hand, when the abutment portion abuts against the rib at an obtuse angle, the abutment portion can get over the rib with only a slight displacement, and the resistance force received from the elastic member can be reduced.
As a result, when the frame rotates in a predetermined direction, the contact portion strongly interferes with the ribs, and the rebound force when getting over the ribs strikes the adjacent ribs strongly to remove the dust from the filter. When the shaft rotates in the direction opposite to the direction, the contact portion does not strongly interfere with the rib, and the frame can be rotated with almost no resistance to the filter.
As a result, depending on the rotation direction of the frame, even if the dust compression mechanism is configured to be driven in conjunction with the dust removal mechanism, the sound generated by the contact portion of the dust removal member hitting the rib can be suppressed as much as possible. The compression mechanism can be driven during the cleaning operation while suppressing noise.
If the dust compression mechanism can be driven during the cleaning operation, the dust can be prevented from rising in the dust collection container, and the air flow path from the dust collection container to the filter will be clogged and the cleaning ability will be reduced. Can be prevented. In addition, the dust compression rate in the dust collecting container is improved, and the dust can be easily discarded.

According to the present invention, the slope that rises along the direction opposite to the direction in which the compression member rotates when compressing the dust is formed on the inner surface of the bottom lid that closes the lower end of the dust collecting container. Since the step is formed, when the compression member rotates in the direction of compressing the dust, the compressed dust is engaged with the step on the bottom cover for efficient compression, and when rotating in a direction different from the rotation direction. The compressed dust can be slid on the bottom lid, and the compressed dust can be prevented from flowing back along the compression member. Therefore, according to this invention, the dust collection part provided with the bottom cover useful for the improvement of convenience and cleaning ability, and a vacuum cleaner provided with the same can be provided.

It is a perspective view of the vacuum cleaner concerning the embodiment of the present invention. It is a perspective view of the main-body part of the vacuum cleaner shown by FIG. It is sectional drawing of the main-body part shown by FIG. It is a perspective view which shows the state which removed the dust collection part from the main-body part shown by FIG. It is a perspective view which shows the state which removed the dust collection part from the main-body part shown by FIG. It is a perspective view which shows the state which removed the dust collection part from the main-body part shown by FIG. It is an exploded assembly figure which shows the attachment structure of the handle | steering-wheel of a dust collection part, a front decorative cover, and a back decorative cover. It is a perspective view which shows the state which opened the bottom cover of the dust collecting part. It is a perspective view of a dust collection part. It is a right view of the dust collecting part shown by FIG. It is a top view of the dust collection part shown by FIG. FIG. 12 is a cross-sectional view taken along line AA in FIG. 11. FIG. 12 is a cross-sectional view taken along the line BB in FIG. 11. It is explanatory drawing explaining the internal structure of a dust collection part. It is explanatory drawing explaining the internal structure of a dust collection part. It is an exploded assembly figure which shows the structure of a filter and a dust removal mechanism. It is a top view of the filter with which the dust removal mechanism was assembled | attached. It is CC sectional view taken on the line of FIG. FIG. 19 is a sectional view taken along the line DD of FIG. FIG. 19 is a cross-sectional view taken along the line EE of FIG. Explanation of how the contact portions of the first, second, and third dust removing members come into contact with the upper ribs of the filter when the frame of the dust removing mechanism rotates counterclockwise (dust removing direction) with respect to the filter. FIG. Explanatory drawing explaining a mode that the contact part of a 1st, 2nd and 3rd dust removal member contact | abuts to the upper rib of a filter, when the flame | frame of a dust removal mechanism rotates axially (compression direction) with respect to a filter. It is. It is an exploded assembly figure of the bottom cover of a dust collecting container. It is the elements on larger scale of the F section of FIG. FIG. 20 is a diagram corresponding to FIG. 20 (a) of the dust removing member according to Modification 1 of the present invention. FIG. 20 is a view corresponding to FIG. 20A of a dust removing member according to Modification 2 of the present invention.

The dust removing mechanism according to the present invention includes a filter that is supported by a plurality of ribs, a frame that rotates about the filter, and a frame that is pivotally supported by an elastic member via an elastic member. A dust removing member that intermittently abuts on the rib to remove dust from the filter. The dust removing member is supported by the frame and extends from the main body toward the filter when the frame rotates axially. The main body of the dust removing member is not subjected to the urging force from the elastic member when the frame is axially rotated in a predetermined direction, and the contact part is a rib. When the contact portion and the rib make an acute angle in the rotational direction and the shaft rotates in the direction opposite to the predetermined direction, the main body portion of the dust removing member is attached from the elastic member. Received power Orazu, and, in a state where the contact portion is in contact with the rib, a contact portion and the rib, characterized in that the angle formed by the rotational direction are formed so as to abut at an obtuse angle.

In the dust removal mechanism according to the present invention, the filter means a filtration membrane supported by a plurality of ribs.
Also, dust removal means removing dust adhering to the filter, and in the present invention, dust removal is performed by utilizing the vibration of the rib that occurs when the contact portion of the dust removal member contacts the rib supporting the filter. .
The acute angle means an angle smaller than 90 °, and the obtuse angle means an angle larger than 90 ° and smaller than 180 °.

In the dust removing mechanism according to the present invention, it is preferable that the elastic member urges the dust removing member to return the dust removing member to the original posture regardless of the rotation direction of the frame.
According to such a configuration, regardless of the rotation direction of the frame, when the dust removing member does not interfere with the rib, the dust removing member can be quickly returned to the original posture. As a result, the followability of the dust removing member with respect to the rib can be improved, and even if the frame is rotated at a high speed, it is possible to prevent the dust removing member from being exposed to an uncontrollable state. Thereby, not only the desired dust removal performance can be exhibited, but also the failure of the dust removal mechanism can be prevented.

In the dust removal mechanism according to the present invention, each rib of the filter is linearly extending radially from the center, the frame has a shaft support portion that pivotally supports the main body portion of the dust removal member, and the shaft support portion has a contact portion. The angle with respect to the center of the filter may be determined so as to contact the rib in parallel.
According to such a configuration, the contact portion comes into line contact with the rib, and it is possible to prevent the rib from being damaged by applying an excessive load to a part of the rib.

In the dust removing mechanism according to the present invention, a plurality of dust removing members may be provided and arranged so as to contact the ribs at different timings.
According to such a configuration, since a plurality of dust removing members are in contact with the ribs at different timings, it is possible to prevent the sound of hitting the ribs from being simultaneously generated at a plurality of locations and to suppress noise.

In the dust removal mechanism according to the present invention, a plurality of dust removal members may be provided, and each may be disposed so as to come into contact with a different portion of the rib.
According to such a configuration, a plurality of dust removing members are in contact with different portions of the ribs, so that it is possible to prevent the ribs from being damaged due to the load being concentrated on one portion of the ribs.

From another point of view, the present invention includes a dust collecting container in which an air inlet containing dust is formed to generate a swirling airflow, and a dust removing mechanism that removes dust attached to the filter. The present invention also provides a dust collecting unit comprising the above-described dust removing mechanism according to the present invention.

From another point of view, the present invention also provides a vacuum cleaner provided with the above-described dust collecting portion according to the present invention in a detachable manner.

The dust collection unit according to the present invention includes a dust collection container in which an air inlet containing dust is formed to generate a swirling airflow, and a shaft that is rotatably provided in the dust collection container and rotates in a predetermined direction. A compression member configured to compress dust; and a bottom cover provided at a lower end of the dust collecting container, the bottom cover having an inner surface closing the lower end of the dust collecting container, and the inner surface compresses dust. In this case, a slope that rises in a direction opposite to the direction in which the compression member rotates is formed, and a step is formed by the end of the slope.
In the dust collecting part according to the present invention, the compression member means a member having blades or the like for compressing dust when the shaft rotates in a predetermined direction in the dust collecting container.

In the dust collecting portion according to the present invention, the step may be formed to extend in a direction orthogonal to the rotation direction of the compression member.
According to such a configuration, the compressed dust can be efficiently locked to the step, and the dust compression efficiency is improved.

In the dust collecting portion according to the present invention, the inner surface includes a bottom portion and a peripheral wall portion rising from a peripheral edge of the bottom portion, and the slope and the step are formed on one or both of the bottom portion and the peripheral wall portion. Also good.
According to such a configuration, the step for locking the dust is formed on one or both of the bottom portion and the peripheral wall portion, so that the compressed dust can be locked to the step more efficiently.

From another point of view, the present invention has a dust collecting container in which an air inlet containing dust is formed to generate a swirling airflow, and is provided in the dust collecting container so as to be axially rotatable and axially rotated in a predetermined direction. A compression member that compresses the dust sometimes, and a bottom lid provided at the lower end of the dust collecting container, the bottom lid has an inner surface that closes the lower end of the dust collecting container, and dust on the inner surface Provided is a vacuum cleaner that is detachably provided with a dust collecting portion that is formed with a slope that rises in a direction opposite to the direction in which the compression member rotates during compression, and a step is formed at the end of the slope. It is also what you do.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Details of a dust collection unit provided with a dust removal mechanism or a bottom cover according to an embodiment of the present invention, a dust collection unit provided with them, and a vacuum cleaner provided with the dust collection unit detachably based on the drawings below Explained.

[Overall description of the vacuum cleaner]
1 is a perspective view of a vacuum cleaner according to an embodiment of the present invention, FIG. 2 is a perspective view of a main body portion of the vacuum cleaner shown in FIG. 1, and FIG. 3 is a cross-sectional view of the main body portion shown in FIG. .

As shown in FIG. 1, a vacuum cleaner 1 according to an embodiment of the present invention includes a main body unit 10 provided with an electric blower 11 (see FIG. 3), and a cyclone system that is detachably attached to the main body unit 10. A dust collecting unit 30, a flexible hose 3 that is detachably attached to the insertion port 12 of the main body 10, a handle unit 5 that is attached to the tip of the hose 3 and has an operation unit 4, and a handle unit 5 It is mainly composed of the connected extension pipe 6 and the suction port body 7 connected to the tip of the extension pipe 6 and in contact with the surface to be cleaned.
Although not shown, the operation unit 4 is provided with an output changeover switch for switching the output of the electric blower 11, a stop switch for stopping the electric blower 11, and the like.

As shown in FIG. 2, the main body 10 has an insertion port 12 of the hose 3, a dust collection chamber 20 that houses the dust collection unit 30, and a collection port 12 that is housed in the dust collection chamber 20 from the front to the rear. A pair of dust collector 30 that separates and collects dust flowing in through the door, a handle 13 that the user grips when carrying the main body 10, and a body that moves the main body 10 following the movement of the user during cleaning operation Main wheels 14 are arranged in order.
Further, as shown in FIG. 3, auxiliary wheels 15 and 16 are provided on the front side and the rear side of the main body part 10 to float the main body part 10 from the floor and assist the smooth movement of the main body part 10. .

As shown in FIG. 3, the electric blower 11 is provided on the rear side of the main body 10, and the electric blower 11 and the dust collecting part 30 are connected by a duct 17. In addition, a slit-like first exhaust port 19 (see FIG. 6) for releasing the air discharged from the electric blower 11 to the outside is formed in the rear casing 18 of the main body 10.
On the other hand, the insertion port 12 on the front side of the main body 10 is connected to an inflow port 31 provided on the front side of the dust collection unit 30, and the second exhaust port 32 provided on the upper rear side of the dust collection unit 30 is The main body 10 is connected to the duct 17.
Thereby, when the electric blower 11 is operated, a negative pressure is generated in the dust collecting unit 30 connected to the duct 17 through the second exhaust port 32, and the dust-containing air is sucked into the suction port body 7, the extension pipe 6, It flows from the inlet 31 of the dust collecting unit 30 through the hose 3 and the insertion port 12.

At this time, a swirling airflow is generated in the dust collecting container 33 of the dust collecting unit 30 to separate the dust, and the separated dust is collected on the bottom cover 80 of the dust collecting container 33. The airflow after the dust is separated flows into the inner cylinder 35, passes through the filter 50, and flows out from the second exhaust port 32 to the duct 17 in the main body 10.
There is a possibility that fine dust is included in the airflow after the dust is separated, but fine dust in the airflow is collected by the filter 50 by passing through the filter 50, and clean air is collected. The air is discharged from the first exhaust port 19 through the second exhaust port 32 and the duct 17.

4 to 6 are perspective views showing a state in which the dust collecting part is removed from the main body shown in FIG.
As shown in FIGS. 4 to 6, the main body portion 10 has a dust collection chamber 20 for detachably storing the dust collection portion 30 therein. The dust collection chamber 20 is a bottomed cylindrical space corresponding to the dust collection unit 30 and is open at the top.
As shown in FIG. 6, the end of the insertion port 12 of the hose 3 (see FIG. 1) is exposed at the upper front part of the dust collection chamber 20. On the other hand, as shown in FIGS. 4 and 5, the end of the duct 17 connected to the electric blower 11 (see FIG. 3) is exposed at the upper rear portion of the dust collection chamber 20.
When the dust collecting unit 30 is inserted into the dust collecting chamber 20 from above, the insertion port 12 of the main body unit 10 and the inlet 31 of the dust collecting unit 30 are connected and the second exhaust port of the dust collecting unit 30 is connected. 32 and the duct 17 of the main body 10 are connected.

As shown in FIGS. 2 to 6, a movable handle 36 operated by a user when attaching / detaching the dust collecting unit 30 to / from the dust collecting chamber 20 is provided at the upper part of the dust collecting unit 30. And a rear decorative cover 38. A through hole 36a is formed in the handle 36 so that the user can easily hold it. Here, for example, the user can insert the finger into the through hole 36 a and lift the handle 36 so as to grasp the front portion of the handle 36. With this configuration, the dust collecting unit 30 can be removed from the dust collecting chamber 20 without difficulty even with one hand. As a result, user convenience is improved.
As shown in FIG. 2, the handle 36, the front decorative cover 37, and the rear decorative cover 38 are integrated with the upper housing 21 of the main body 10 in a state where the dust collecting unit 30 is attached to the dust collecting chamber 20. It is formed to have an appearance.

FIG. 7 is an exploded view showing a mounting structure of the handle, the front decorative cover, and the rear decorative cover.
As shown in FIGS. 3 and 7, the handle 36 is attached to the attachment base 39 together with the front decorative cover 37 and the rear decorative cover 38. The handle 36 is pivotally supported so as to be able to rotate up and down with respect to the mounting base 39, and an engaging portion 36 b protruding to the inner surface side is engaged with a slide member 40 slidably disposed on the mounting base 39. .
As shown in FIG. 7, a guide portion 41 that guides the slide member 40 to be slidable in the front-rear direction is formed on the mounting base 39, and an opening 41 a is formed at the rear end of the guide portion 41. . On the other hand, the slide member 40 is formed with an engaging claw 40a for engaging with the engaged portion 22 (see FIGS. 4 and 5) of the dust collecting chamber 20 at the rear end. The slide member 40 is urged by an elastic member (not shown) so that the engaging claw 40a protrudes from the opening 41a in a state where the slide member 40 is disposed on the guide portion 41.

As shown in FIG. 2, when the dust collecting portion 30 is mounted in the dust collecting chamber 20, when the handle 36 is rotated upward to lift, the engaging portion 36 b is slid on the guide portion 41. 40 is pushed forward, and the engaging claw 40a is retracted into the opening 41a accordingly.
When the engaging claw 40a is retracted into the opening 41a, the engagement between the engaging claw 40a of the dust collecting portion 30 and the engaged portion 22 of the dust collecting chamber 20 is released. When the handle 36 is lifted up in a state where the engagement between the engagement claw 40a and the engaged portion 22 is released, the dust collection portion 20 is moved from the dust collection chamber 20 of the main body portion 10 as shown in FIGS. 30 can be removed.

FIG. 8 is a perspective view showing a state in which the bottom cover of the dust collecting unit is opened.
As shown in FIG. 8, the dust collecting section 30 removed from the dust collecting chamber 20 (see FIGS. 4 to 6) moves the knob 48 so that the claw 49 is detached from the dust collecting container 33 and the bottom cover 80 is removed. By opening, the dust accumulated in the dust collecting container 33 can be discarded. After the dust is discarded, the bottom cover 80 is closed again, and the dust collecting unit 30 is mounted in the dust collecting chamber 20 of the main body 10 in preparation for the next cleaning operation.
At this time, the dust collecting part 30 is accommodated in a predetermined position of the dust collecting chamber 20 while the handle 36 is lifted upward, and when the handle 36 is returned to the original position, the engaging claw 40 a is engaged with the engaged part of the dust collecting chamber 20. 22 (see FIG. 4 and FIG. 5), and the dust collection unit 30 is fixed to the dust collection chamber 20.

Since the surface of the engaging claw 40a facing the engaged portion 22 of the dust collecting chamber 20 is an inclined surface, when the dust collecting portion 30 is pushed into the dust collecting chamber 20, the upper end of the engaged portion 22 is The abutting engagement claw 40a retracts into the opening 41a against the urging force of an elastic member (not shown). When the dust collection unit 30 reaches a predetermined position with respect to the dust collection chamber 20, the engaging claw 40 a protrudes from the opening 41 a by the biasing force of the elastic member and engages with the engaged portion 22 of the dust collection chamber 20. To come.
For this reason, the operation of the handle 36 is not indispensable when the dust collecting unit 30 is mounted in the dust collecting chamber 20 of the main body unit 10, and the dust collecting unit 30 is mounted so as to be pushed into the dust collecting chamber 20 in a predetermined direction. May be.

[Description of dust collector and dust removal mechanism]
9 is a perspective view of the dust collecting portion, FIG. 10 is a right side view of the dust collecting portion shown in FIG. 9, FIG. 11 is a plan view of the dust collecting portion shown in FIG. 10, and FIG. 13 is a cross-sectional view taken along the arrow BB in FIG.

As shown in FIGS. 9 to 13, the dust collecting unit 30 includes a cylindrical dust collecting container 33 in which a dust inlet 31 is formed, a bottom lid 80 that closes the bottom of the dust collecting container 33 so as to be openable and closable, The upper cover part 42 that covers the upper side of the dust collecting container 33 is mainly configured.
9 and 10, the inflow port 31 is formed so as to extend from the peripheral side surface of the dust collecting container 33 along the tangential direction of the peripheral side surface, and the insertion port 12 (see FIG. 6) at the tip. A flange 31a is formed to ensure connection with the.
As shown in FIGS. 9 to 13, the upper cover part 42 is mainly constituted by the handle 36, the front decorative cover 37, the rear decorative cover 38 and the mounting base 39, and the second exhaust port is formed by the rear part of the mounting base 39. 32 is formed.

As shown in FIG. 12 and FIG. 13, the inside of the dust collection container 33 has a compression member 43 having a spiral blade 43 a and an opening 35 a to which a mesh filter (not shown) is attached. The cylinder 35 has a coupling portion 35d that locks the inner cylinder 35 and the compression member 43, and the compression member 43 and the coupling portion 35d are provided so as to rotate in conjunction with each other.
In addition, a funnel-shaped filter housing portion 44 communicating with the inner tube 35 is provided on the upper portion of the inner tube 35, and the filter 50 is housed in the enlarged diameter portion 44 a of the filter housing portion 44. In addition, a dust removing mechanism 60 that removes dust attached to the filter 50 is provided on the upper portion of the filter 50 so as to be rotatable about the filter 50.

14 and 15 are explanatory diagrams for explaining the internal configuration of the dust collecting section. In FIG. 14 and FIG. 15, the dust collection container and the upper cover part are not shown.
As shown in FIGS. 14 and 15, the compression member 43 and the coupling portion 35 d are coupled so as to be coaxial with each other, and the upper end 35 b of the coupling portion 35 d is formed at the center of the bottom surface 44 b of the filter housing portion 44. The shaft 44c is fitted so as to be rotatable.
The enlarged diameter portion 44a of the filter accommodating portion 44 has a slightly larger diameter than that of the filter 50 in order to accommodate the filter 50, and a pair of upper and lower portions for driving the dust removing mechanism 60 is provided outside the enlarged diameter portion 44a. A gear housing 47 that houses the first gear 45 and the second gear 46 is attached.
As shown in FIG. 15, a protrusion 43 b that promotes the compression of dust is formed on the back surface of the blade 43 a of the compression member 43. The operation of the protrusion 43b will be described later.

The first gear 45 is a gear for transmitting a driving force to a frame 61 of a dust removing mechanism 60 described later, and the second gear 46 is an output gear 23 of the dust removing motor exposed in the dust collecting chamber 20 of the main body 10 (FIG. 5). This is the gear that receives the driving force from The first gear 45 and the second gear 46 are connected in a gear housing 47 so as to be interlocked with each other, and the first gear 45 is exposed in the enlarged diameter portion 44a from a side opening 44d formed in the peripheral wall of the enlarged diameter portion 44a. is doing.
As described above, when the dust collection unit 30 is attached to the dust collection chamber 20 of the main body unit 10, the second gear 46 on the dust collection unit 30 side meshes with the output gear 23 on the dust collection chamber 20 side, and The driving force is transmitted to the first gear 45 via the second gear 46.

FIG. 16 is an exploded view showing the configuration of the filter and the dust removal mechanism.
As shown in FIGS. 14 and 15 and FIG. 16, the filter 50 is circular in plan view, and a through hole 51 is formed in the center for inserting the rotation shaft 66 of the frame 61 of the dust removing mechanism 60. A shaft hole 52 is provided. A plurality of upper ribs 53 and lower ribs 54 extend radially from the upper end and the lower end of the shaft hole 52, and the tips of the upper rib 53 and the lower rib 54 form an inner annular portion 55 concentric with the shaft hole 52. It is connected.
The shaft hole portion 52, the upper rib 53, the lower rib 54, and the inner annular portion 55 form a skeleton that supports a HEPA filter (not shown), and the HEPA filter is supported in a pleated shape.
Further, an outer annular part 56 concentric with the inner annular part 55 is formed outside the inner annular part 55, and a predetermined interval is provided between the inner annular part 55 and the outer annular part 56.

The dust removal mechanism 60 includes a frame 61 that rotates about the filter 50, and three first, second, and third dust removal members 63, 64, 65 that are supported by the frame 61 through an elastic member 62 so as to be swingable. Consists mainly of.
The frame 61 includes a shaft portion 66 that fits in the shaft hole portion 52 of the filter 50 so as to be axially rotatable, three connecting arm portions 67 that extend radially from the vicinity of the upper end of the shaft portion 66, and a radial shape from the vicinity of the upper end of the shaft portion 66. Three first, second, and third pivot support arms 68, 69, 70, a connection arm 67, and first, second, and third pivot support arms 68, 69, It is comprised from the cyclic | annular part 71 of planar view connected with the front-end | tip of 70. As shown in FIG. A projecting rib 71 b that partially projects is formed on the outer periphery of the annular portion 71. The operation of the protruding rib 71b will be described later.

17 is a plan view of a filter with a dust removal mechanism assembled, FIG. 18 is a cross-sectional view taken along the line CC in FIG. 17, FIG. 19 is a cross-sectional view taken along the line DD in FIG. 18, and FIG. It is E arrow sectional drawing.
As shown in FIG. 16 and FIGS. 17 to 20, the first, second and third shaft support arms 68, 69, 70 are provided between the shaft 66 and the annular portion 71. First, second and third shaft support portions 68a, 69a and 70a for pivotally supporting the first, second and third dust removing members 63, 64 and 65 are formed, respectively.
The first, second, and third shaft support portions 68a, 69a, and 70a are respectively covered with a cover 72 having a semicircular cross section, and the inner surface of each cover 72 is engaged with the locking end 62a of the elastic member 62. Step portions 72a are respectively formed.
Further, the first, second and third dust removing members 63, 64 and 65 include main body portions 63a, 64a and 65a pivotally supported by the first, second and third pivotal support portions 68a, 69a and 70a, respectively, and a filter. Lever- like contact portions 63b, 64b, 65b that intermittently contact the upper rib 53 of the filter 50 when the frame 61 rotates relative to the shaft 50.

The main body portions 63a, 64a, 65a of the first, second, and third dust removing members 63, 64, 65 are rotatably fitted to the shaft ends of the first, second, and third shaft support portions 68a, 69a, 70a, respectively. The through portions 63a1, 64a1, 65a1, and the engaging portions 63a2, 64a2, 65a2 that engage with the locking ends 62a of the elastic member 62 when the contact portions 63b, 64b, 65b are displaced by contacting the upper rib 53, and have.
The first, second, and third shaft support portions 68a, 69a, and 70a have screw holes at the shaft ends. The first, second, and third dust removing members 63, 64, and 65 have through-holes 63a1, 64a1, and the first, second, and third shaft support portions 68a, 69a, and 70a inserted through the elastic members 62, respectively. 65a1 is passed through the shaft ends of the first, second, and third shaft support portions 68a, 69a, 70a, and is fastened by a retaining screw (not shown) with a flange.
As shown in FIG. 19, the first, second, and third shaft support portions 68a, 69a, 70a are formed so that the shaft ends protrude slightly from the through portions 63a1, 64a1, 65a1, so A slight gap is secured between the flange of the set screw and the through portions 63a1, 64a1, and 65a1, and the first, second, and third dust removing members 63, 64, and 65 (see FIG. 16) are the first and second. The third shaft support portions 68a, 69a, and 70a are swingably attached.

As shown in FIG. 16, a driven gear 71 a is formed in the vicinity of the lower end of the annular portion 71 of the frame 61. When the shaft portion 66 of the frame 61 is fitted into the shaft hole portion 52 of the filter 50, the annular portion 71 of the frame 61 is fitted between the inner annular portion 55 and the outer annular portion 56 of the filter 50 as shown in FIG. The frame 61 can rotate about the filter 50. At this time, the driven gear 71 a formed in the annular portion 71 of the frame 61 is exposed from the opening portion 56 a formed in the outer annular portion 56 of the filter 50.

Further, as shown in FIG. 14, in a state where the shaft portion 66 of the frame 61 is fitted in the shaft hole portion 52 (see FIG. 16) of the filter 50, the projecting rib 71b formed on the outer periphery of the annular portion 71 is outside. It is located at substantially the same height as the upper end of the annular portion 56.
As shown in FIG. 13, the protruding rib 71 b is formed by the upper cover when the filter 50 in which the dust removing mechanism 60 is assembled is accommodated in the filter accommodating portion 44 of the dust collecting container 33 and covered with the upper cover portion 42. It is formed so as to face the lower end of the mounting base 39 of the portion 42 with a slight gap.
For this reason, when the frame 61 rotates with respect to the filter 50 in the dust collecting unit 30, even if the rotation axis of the frame 61 is deviated from the original axis for some reason, In the dust part 30, the protruding rib 71 b of the frame 61 comes into contact with the lower end of the mounting base 39, and it is possible to prevent a situation in which the frame 61 shakes and rotates in the dust collection part 30. Further, when the upper cover portion 42 is attached, the filter 50 can be prevented from being lifted by being in contact with the protruding rib 71b.

Further, as shown in FIGS. 15 and 16, a scraper member 74 is attached to the lower end of the shaft portion 66 of the frame 61 fitted in the shaft hole portion 52 of the filter 50 via an annular elastic seal material 73. The scraper member 74 rotates in conjunction with the shaft rotation of the frame 61.
As shown in FIG. 15, an engagement piece 74 a that protrudes toward the inner cylinder 35 is formed at the lower end of the scraper member 74. On the other hand, as shown in FIG. 14, an engagement piece 35c is formed protruding upward from the upper end 35b of the coupling portion 35d.

For this reason, as shown in FIGS. 12 to 15, when the filter 50 with the dust removing mechanism 60 assembled is housed in the filter housing portion 44, the driven gear 71a formed in the annular portion 71 of the frame 61 is replaced with the filter housing portion. The engaging piece 74a of the scraper member 74 engages with the engaging piece 35c of the coupling portion 35d.
Accordingly, when the frame 61 is axially rotated with respect to the filter 50 by the driving force of the first gear 45, the scraper member 74, the coupling portion 35d, and the compression member 43 are all axially rotated in the same direction in conjunction with the axial rotation of the frame 61. To do.
Note that the tips of the engagement piece 74a and the engagement piece 35c form a triangular crest, and when the filter 50 with the dust removal mechanism 60 assembled is accommodated in the filter accommodation portion 44, it can be accommodated without riding on each other. Become. The shape of the engagement piece may be a semicircular mountain instead of a triangular mountain.
As shown in FIGS. 14 and 16, the upper and lower ends of the shaft portion 66 of the frame 61 have an uneven gripping portion 66 a that allows the user to manually rotate the frame 61 with respect to the filter 50. Is formed.

[Arrangement and operation of dust removal member]
As shown in FIGS. 16 to 19, the first, second and third shaft support portions 68a, 69a and 70a which support the first, second and third dust removing members 63, 64 and 65 so as to be swingable. The angle with respect to the center of the shaft portion 66 is determined so that the contact portions 63b, 64b, 65b of the first, second and third dust removing members 63, 64, 65 are in contact with the upper rib 53 in parallel. As shown in FIG. 21 (e), the position where the contact portion 63b hits the upper rib 53 is different from the center point of the axis of the first shaft support portion 68a (L4). This is because the contact portion 63b and the upper rib 53 cannot be contacted in parallel.
Specifically, as shown in FIG. 20, the axes of the first, second, and third shaft support portions 68a, 69a, and 70a are connected to the center of the shaft portion 66 and the first, second, and third shaft support portions 68a, 69a, The angles are set to θ1, θ2, and θ3 with respect to a line connecting the axis end center of 70a.

In other words, the first, second, and third shaft support portions 68a, 69a, and 70a are in front of the upper rib 53 that comes close when the frame 61 rotates counterclockwise with respect to the filter 50. It is formed so as to be parallel to the upper rib 53.
Thus, when the frame 61 rotates counterclockwise with respect to the filter, the contact portions 63b, 64b, 65b of the first, second and third dust removing members 63, 64, 65 and the upper rib 53 are respectively It comes into line contact and can prevent an excessive load from being applied to a part of the upper rib 53.

The first, second, and third shaft support portions 68a, 69a, and 70a are formed on the upper ribs at different timings of the contact portions 63b, 64b, and 65b of the first, second, and third dust removing members 63, 64, and 65, respectively. 53 so as to contact 53.
Specifically, when the frame 61 rotates in the counterclockwise direction with respect to the filter 50, the first dust removing member 63, the second dust removing member 64, and the third dust removing member 65 are arranged in contact with the upper rib 53 in this order. Has been.
Thereby, the contact parts 63b, 64b, 65b of the first, second, and third dust removing members 63, 64, 65 do not contact the plurality of upper ribs 53 at the same time, and an increase in noise can be suppressed.

Further, as shown in FIG. 20, the first, second and third shaft support portions 68a, 69a and 70a are connected to the shafts of the first, second and third shaft support portions 68a, 69a and 70a from the center of the shaft portion 66. The distances L1, L2, and L3 to the ends are different from each other.
As a result, the contact portions 63b, 64b, 65b of the first, second, and third dust removing members 63, 64, 65 supported by the first, second, and third shaft support portions 68a, 69a, 70a are respectively located on the upper side. It comes to contact | abut to the different location of the rib 53, and it can prevent that load concentrates on one location of the upper rib 53. FIG.

FIG. 21 shows how the contact portions of the first, second and third dust removing members come into contact with the upper ribs of the filter when the frame of the dust removing mechanism rotates counterclockwise (dust removing direction) with respect to the filter. It is explanatory drawing demonstrated. The first, second, and third dust removing members 63, 64, and 65 all have the same structure and similarly abut against the upper rib 53. Therefore, in the following description, only the first dust removing member 63 is referred to. To explain. For the filter 50 and the frame 61 to be referred to in the following description, refer to the previous drawings as appropriate.

As shown in FIG. 21A, the first dust removing member 63 is pivotally supported by the first shaft support portion 68a via the elastic member 62 so as to be swingable. In the state shown in FIG. 21A, the engaging ends 62a at both ends of the elastic member 62 are engaged with the stepped portion 72a of the cover 72 and also engaged with the engaging portion 63a2 of the main body 63a. Yes.
In the state shown in FIG. 21A, the elastic member 62 is in a free state in which no compressive force is applied, and the first dust removing member 63 does not receive the urging force from the elastic member 62, but the contact portion 63b is The upper rib 53 is in contact with the acute angle α1.

Since the first dust removing member 63 is formed such that the contact portion 63b contacts the upper rib 53 at an acute angle α1 in a state where the first dust removing member 63 is not receiving the urging force from the elastic member 62, the frame 61 is attached to the filter 50. On the other hand, when the shaft rotates counterclockwise (dust removal direction), the contact portion 63b deeply interferes with the upper rib 53 as shown in FIG.
At this time, one locking end 62a of the elastic member 62 is locked to one stepped portion 72a of the cover 72, and the other locking end 62a is engaged to one engaging portion 63a2 of the main body 63a. A compressive force is applied to the elastic member 62. As the elastic member 62 is compressed, a resistance force is applied to the first dust removing member 63.

Thereafter, when the frame 61 continues to rotate, the tip 63b1 of the contact portion 63b reaches the top of the upper rib 53 as shown in FIG. 21C, and the elastic member 62 is compressed to the maximum.
When the frame 61 continues to rotate further, the tip 63b1 of the contact portion 63b gets over the top of the upper rib 53 as shown in FIG. 21 (d), and the compression force of the elastic member 62 is released at once.
When the compressive force of the elastic member 62 is released, as shown in FIG. 21E, the contact portion 63b hits the adjacent upper rib 53 strongly by the biasing force of the elastic member 62, and the upper rib 53 is vibrated. The dust attached to the filter (not shown) is shaken off.
Thereafter, by repeating the operation as described above, the contact portion 63b of the first dust removing member 63 intermittently contacts the upper rib 53, and the filter 50 is removed.

FIG. 22 illustrates how the contact portions of the first, second, and third dust removing members come into contact with the upper ribs of the filter when the dust removal mechanism frame rotates clockwise (compression direction) with respect to the filter. It is explanatory drawing to do. The first, second, and third dust removing members 63, 64, and 65 all have the same structure and similarly abut against the upper rib 53. Therefore, in the following description, only the first dust removing member 63 is referred to. To explain. For the filter 50 and the frame 61 to be referred to in the following description, refer to the previous drawings as appropriate.

As shown in FIG. 22A, the first dust removing member 63 has an obtuse angle α <b> 2 with the abutment portion 63 b connected to the main body portion 63 a being obtuse to the upper rib 53 in a state where it does not receive the urging force from the elastic member 62. In contact.
Since the contact portion 63b is in contact with the upper rib 53 at an obtuse angle α2, the frame 61 is clockwise (compression direction) with respect to the filter 50 as shown in FIGS. 22 (b) and 22 (c). ), The upper rib 53 can be overcome with only a slight displacement. At this time, the compressive force received by the elastic member 62 is small, and the first dust removing member 63 receives almost no resistance from the elastic member 62.
When the frame 61 continues to rotate further, the contact portion 63b is quickly returned to the original position by the urging force from the elastic member 62 as shown in FIG.

Thereafter, by repeating the above-described operation, the contact portion 63b of the first dust removing member 63 gets over the upper rib 53 intermittently with almost no resistance, and the frame 61 has almost no resistance against the filter 50. The axis rotates.
For this reason, the sound generated when the contact part 63b gets over the upper rib 53 is very small, and the noise when the frame 61 rotates in the clockwise direction with respect to the filter 50 is also very small.

The elastic member 62 urges the first, second and third dust removing members 63, 64, 65 to return to their original positions regardless of the rotation direction of the frame 61. The followability of the first, second, and third dust removing members 63, 64, and 65 is enhanced, and the first, second, and third dust removing members 63, 64, and 65 are controlled violently even when the frame 61 rotates at high speed. There will be no disability.

As described above, in this embodiment, when the frame 61 is rotated counterclockwise with respect to the filter 50, the contact portions 63b and 64b of the first, second and third dust removing members 63, 64 and 65 are used. , 65b intermittently and strongly contact the upper rib 53 of the filter 50 to remove the dust from the filter 50.
On the other hand, when the frame 61 is rotated clockwise with respect to the filter 50, the contact portions 63b, 64b, 65b of the first, second and third dust removing members 63, 64, 65 are connected to the upper ribs of the filter 50. The frame 61 can be rotated with respect to the filter 50 while suppressing noise.

For this reason, in the electric vacuum cleaner 1 (see FIG. 1) in which the dust removal mechanism 60 according to the present embodiment is incorporated, as shown in FIGS. The coupling portion 35 d and the compression member 43 can be rotated in the dust collecting container 33 in conjunction with the rotation of the frame 61.
Since the compression member 43 has the spiral blades 43a, the dust separated from the air current rises in the dust collection container 33 by rotating the shaft in the dust collection container 33 during the cleaning operation, and the inner cylinder 35 Can be prevented from being blocked by dust. Furthermore, the dust compression rate can be increased in the dust collecting container 33, and the disposal of the dust can be facilitated.

After the cleaning operation is completed, the frame 61 is rotated counterclockwise with respect to the filter 50, whereby the contact portions 63b, 64b, 65b of the first, second and third dust removing members 63, 64, 65 are obtained. Is intermittently strongly brought into contact with the upper rib 53 of the filter 50, and the upper rib 53 is vibrated, whereby dust adhering to the filter 50 can be shaken off.
Dust shaken off from the filter 50 by the operation of the dust removal mechanism 60 is collected on the bottom surface 44b (see FIG. 14) of the filter housing portion 44, but is attached to the lower end of the scraper member 74 that rotates in conjunction with the frame 61. The flexible scraper 74b (see FIG. 15) slides on the bottom surface 44b, and dust accumulated on the bottom surface 44b is scraped off from the bottom opening 44c into the inner cylinder 35. The dust scraped into the inner cylinder 35 falls into the compression member 43 and accumulates at the lower end of the compression member 43 blocked by the bottom cover 80.

As described above, in this embodiment, the grip portion 66a (see FIG. 14 and FIG. 16) with unevenness is formed at the upper end of the shaft portion 66 of the frame 61, and the user holds the frame 61 by gripping the grip portion 66a. Although the shaft can be manually rotated with respect to the filter 50, the dust removal mechanism 60 according to the present embodiment can structurally force the frame 61 in either the clockwise direction or the counterclockwise direction with respect to the filter 50. The shaft can be rotated.
For this reason, in order for a user unfamiliar with the operation to remove dust from the filter 50 by himself / herself, the dust removal mechanism 60 is structurally structured regardless of which direction the frame 61 is manually rotated by grasping the grip 66a. There is no risk of failure.

[Description of the bottom cover]
FIG. 23 is an exploded view of the bottom lid of the dust collecting container.
As shown in FIG. 23, the bottom cover 80 has a shaft portion 81 that is pivotally supported in the vicinity of the lower end of the dust collection container 33, and an elastic member 82 is interposed between the shaft portion 81 and the dust collection container 33. Is done.
Accordingly, as shown in FIG. 8 described above, when the engagement of the bottom cover 80 with the dust collecting container 33 is released, the bottom cover 80 is opened by the urging force of the elastic member 82 and is compressed in the dust collecting container 33. It is possible to discard the accumulated dust and the dust accumulated at the lower end of the compression member 43.

As shown in FIG. 23, the bottom cover 80 has an inner surface 83 that closes the dust collecting container 33, and the inner surface 83 has a direction (counterclockwise) opposite to the direction in which the compression member 43 rotates (clockwise) during the cleaning operation. A slope 84 that rises along the direction) is partially formed, and a step 85 is formed by the end of the slope 84.
Here, the inner surface 83 of the bottom cover 80 includes a circular bottom portion 83a and a peripheral wall portion 83b rising from the periphery of the bottom portion 83a, and the slope 84 and the step 85 are formed over the bottom portion 83a and the peripheral wall portion 83b. . The step 85 is formed so as to extend in a direction orthogonal to the rotation direction of the compression member 43.

By forming the step 85 as described above on the inner surface 83 of the bottom lid 80, the dust is compressed when the dust is compressed by the blades 43a of the compression member 43 that rotates in the dust collecting container 33 during the cleaning operation. The dust is locked to the step 85 formed on the inner surface 83 of the bottom cover 80, and the compressed dust can be prevented from sliding on the bottom cover 80.
If the step 85 as described above is not formed on the inner surface 83 of the bottom lid 80, dust also moves on the bottom lid 80 as the spiral blade 43a rotates, so compression by the rotation of the spiral blade 43a. The force does not work well, and the dust compression efficiency decreases.
However, if the step 85 is formed on the inner surface of the bottom cover 80 and the dust is locked on the bottom cover 80 as in this embodiment, the compression force due to the rotation of the blades 43a is transmitted efficiently, and the dust is compressed. The rate can be improved.

Further, since the step 85 is formed by the end of the slope 84 that rises along the direction opposite to the direction in which the compression member 43 rotates during the cleaning operation, the step 85 is interlocked with the operation of the dust removing mechanism 60 after the cleaning operation is completed. Thus, when the compression member 43 rotates counterclockwise, the compressed dust can be slid on the bottom cover 80.
As a result, even when the compression member 43 rotates axially in the direction opposite to the direction in which the dust is compressed, the phenomenon that the compressed dust flows back in the dust collecting container 33 along the spiral blades 43a. And the dust compression rate is maintained without reduction.
As shown in FIG. 15, a plurality of protrusions 43 b are formed on the back surface of the blade 43 a of the compression member 43. The protrusion 43b is provided with an inclined portion. When the compression member 43 rotates in the clockwise direction during the cleaning operation, the dust is caught by the protrusions 43b and the compression of the dust is promoted. On the other hand, when the compression member 43 rotates counterclockwise in conjunction with the operation of the dust removing mechanism 60 after the cleaning operation is finished, the dust is caught by the protrusions 43b, and the dust is collected along the spiral blades 43a. The phenomenon of backflow in the container 33 is prevented.
In the present embodiment, the case where one slope 84 is provided on the inner surface 83 of the bottom cover 80 has been described, but a plurality of slopes 84 may be provided. When the bottom lid 80 is configured in this way, it is possible to more effectively regulate the compressed dust from sliding on the bottom lid 80 during compression by the compression member 43.
In the present embodiment, the case where the slope 84 is provided on both the bottom portion 83a and the peripheral wall portion 83b of the inner surface 83 of the bottom lid 80 has been described. However, the slope 84 is provided only on one of the bottom portion 83a and the peripheral wall portion 83b. It may be provided. When the bottom cover 80 is configured in this manner, the above-described effects can be obtained, and the degree of freedom in designing the bottom cover 80 can be improved. Further, in the present embodiment, the case where the bottom cover 80 can be opened and closed and the dust compressed in the dust collecting container 33 is discarded by opening the bottom cover 80 has been described. It may be fixed to the dust container 33 or may be formed integrally with the dust container 33. In this case, for example, after the dust collection container 33 is removed from the dust collection unit 30, the dust in the dust collection container 33 can be discarded. Even when the bottom lid 80 is configured in this manner, the above-described effects can be obtained.
As shown in FIG. 23, a prismatic protrusion 86 is formed at the center of the bottom cover 80, and a holding member 88 for holding an annular seal material 87 is fitted into the protrusion 86.
The holding member 88 has a base portion 88a supported on the bottom lid 80 and a protruding portion 88b protruding upward so as to be fitted to the lower end of the compression member 43, and between the base portion 88a and the protruding portion 88b. An annular groove 88c for holding the annular seal material 87 is formed. The holding member 88 is fixed by screwing from the lower side of the bottom lid 80.
The annular seal member 87 is supported by the holding member 88 by being fitted into the annular groove 88 c and seals with the compression member 43.

FIG. 24 is a partial enlarged view of a portion F in FIG.
As shown in FIG. 24, a slight gap (D1) is formed between the lower end of the compression member 43 and the inner surface 83 of the bottom lid 80, and the compression member 43 rotates with respect to the bottom lid 80 without resistance. It is supposed to be. In addition, the dimensional accuracy of the compression member 43 is eased by the slight gap formed between the lower end of the compression member 43 and the inner surface 83 of the bottom lid 80.
However, the compression member 43 is a rotating body that rotates together with the inner cylinder 35 and the dust removal mechanism 60, and it is not preferable that the lower end of the compression member 43 is not supported at all in order to ensure rotational stability.
Therefore, in the present embodiment, the step 43c is formed at a position above the lower end surface on the inner surface side of the compression member 43, and the annular sealing material 87 is in contact with this step.
Since the annular seal member 87 has an inclined surface in contact with the step 43c, the compression member 43 has its own axis and can rotate stably.
In addition, since the lubricant is applied to the surface of the annular sealing material 87, the frictional resistance with respect to the step 43c is almost eliminated.

[Modification 1 of Dust Removal Member]
A dust removing member according to Modification 1 will be described with reference to FIG.
FIG. 25 is a view corresponding to FIG. 20A of the dust removing member according to the first modification of the present invention.
As illustrated in FIG. 25, the dust removing member 163 according to the first modification is obtained by changing the direction of the contact portion 163b with respect to the main body portion 163a with respect to the first dust removing member 63 according to the above-described embodiment.
Specifically, when the main body 163a of the dust removing member 163 is not subjected to the urging force from the elastic member 62 and the contact portion 163b is in contact with the upper rib 53, the The direction of the contact portion 163b is changed so that the angle α3 formed with the rib 53 is larger than the angle α1 (see FIG. 21A) in the above-described embodiment.

Thereby, when the dust removing member 163 moves in the dust removing direction (the direction in which the frame 61 rotates in the counterclockwise direction with respect to the filter 50), the interference between the upper rib 53 and the contact portion 163b of the dust removing member 163 is reduced. The degree becomes stronger, and the resistance force received from the elastic member 62 when the contact portion 163b gets over the upper rib 53 becomes even stronger.
On the other hand, when the dust removing member 163 moves in the compression direction (the direction in which the frame 61 rotates in the clockwise direction with respect to the filter 50), the amount of displacement necessary for the contact portion 163b to get over the upper rib 53 is further increased. When the contact portion 163b gets over the upper rib 53, the resistance force received from the elastic member 62 becomes smaller.

As a result, according to the dust removal member 163 according to the first modification, when moving in the dust removal direction, the contact portion 163b can increase the force of hitting the upper rib 53 to enhance the dust removal action, while in the compression direction. When moving, the noise generated when the contact portion 163b gets over the upper rib 53 can be further reduced, and the frame 61 can be rotated with less resistance.

[Modification 2 of the dust removing member]
A dust removing member according to Modification 2 will be described with reference to FIG.
FIG. 26 is a view corresponding to FIG. 20A of the dust removing member according to the second modification of the present invention.
As shown in FIG. 26, the dust removing member 263 according to Modification 2 is obtained by changing the direction of the contact portion 263b with respect to the main body portion 263a with respect to the first dust removing member 63 according to the above-described embodiment.
Specifically, when the main body 263 a of the dust removing member 263 is not subjected to the urging force from the elastic member 62 and the contact portion 263 b is in contact with the upper rib 53, The direction of the contact portion 263b is changed so that the angle α4 formed with the rib 53 is smaller than the same angle α1 (see FIG. 21A) in the above-described embodiment.

Thereby, when the dust removing member 263 moves in the dust removing direction (the direction in which the frame 61 rotates in the counterclockwise direction with respect to the filter 50), the interference between the upper rib 53 and the contact portion 263b of the dust removing member 263 is prevented. The degree becomes weak, and the resistance force received from the elastic member 62 when the contact portion 263b gets over the upper rib 53 becomes weak.
On the other hand, when the dust removing member 263 moves in the compression direction (the direction in which the frame 61 rotates clockwise relative to the filter 50), the amount of displacement necessary for the contact portion 263b to get over the upper rib 53 is large. Thus, the resistance force received from the elastic member 62 when the contact portion 263b gets over the upper rib 53 is increased.

As a result, according to the dust removing member 263 according to the second modification, the load on the upper rib 53 can be reduced by weakening the force with which the contact portion 263b strikes the upper rib 53 when moving in the dust removing direction. On the other hand, when the abutting portion 263b moves over the upper rib 53 when moving in the compression direction, the rotational resistance of the frame 61 increases with the increase in noise generated. The effect can be exhibited.

As described above, in the present invention, by appropriately setting the direction of the abutting portion with respect to the main body portion of the dust removing member, the strength of the abutting portion hitting the rib is changed, or the strength of the abutting portion hitting the rib depending on the rotation direction Can be changed.
The present invention is not limited to the above-described embodiment, and various modifications can be made within the scope of the idea of the invention. For example, in the present embodiment, the shaft support portion that pivotally supports the dust removing member is provided in the horizontal direction, but the shaft support portion may be provided in the vertical direction and may be configured to strike a protrusion provided on the upper portion of the filter.

DESCRIPTION OF SYMBOLS 1 Vacuum cleaner 10 Main-body part 20 Dust collection chamber 30 Dust collection part 31 Inlet port 33 Dust collection container 35 Inner cylinder 43 Compression member 43a Blade 50 Filter 53 Upper rib (rib)
54 Lower rib 60 Dust removal mechanism 61 Frame 62 Elastic member 63 First dust removal members 63a, 64a, 65a Main body 63b, 64b, 65b Abutting portion 63b1 Tip 64 Second dust removal member 65 Third dust removal member 68 First shaft support arm Portion 68a first shaft support portion 69 second shaft support arm portion 69a second shaft support portion 70 third shaft support arm portion 70a third shaft support portion 80 bottom cover 81 shaft portion 82 elastic member 83 inner surface 83a bottom portion 83b peripheral wall portion 84 slope 85 Step 86 Projection 87 Seal material 88 Holding member 88a Base portion 88b Projection portion 88c Annular groove 80 Bottom cover 81 Shaft portion 82 Elastic member 83 Inner surface 83a Bottom portion 83b Perimeter wall portion 84 Slope 85 Step 86 Projection 87 Seal member 88 Holding member 88a Base portion 88b Projection 88c Annular groove

Claims (10)

1. A filter supported by a plurality of ribs, a frame that rotates with respect to the filter, and a frame that is supported by a frame through an elastic member so as to be swingable. A dust removing member for removing dust from the filter.The dust removing member has a main body portion supported by the frame and a contact portion that extends from the main body portion toward the filter and contacts the rib when the frame rotates axially. When the frame is pivoted in a predetermined direction, the abutment portion is in a state in which the main body portion of the dust removing member does not receive the urging force from the elastic member and the abutment portion is in contact with the rib. When the contact portion and the rib make an acute angle in the rotation direction and the shaft rotates in the direction opposite to the predetermined direction, the main body portion of the dust removing member does not receive the urging force from the elastic member, And the contact part is Contact the state has, dust mechanism angle contact portion and the ribs make the rotational direction is formed so as to abut at an obtuse angle to the.
2. 2. The dust removing mechanism according to claim 1, wherein the elastic member biases the dust removing member so that the dust removing member returns to the original posture regardless of the rotation direction of the frame.
3. Each rib of the filter has a linear shape extending radially from the center, and the frame has a shaft support portion that pivotally supports the main body portion of the dust removing member so that the abutment portion is in contact with the rib in parallel. The dust removing mechanism according to claim 1, wherein an angle with respect to a center of the filter is determined.
4. The dust removing mechanism according to any one of claims 1 to 3, wherein a plurality of dust removing members are provided and arranged so as to contact the ribs at different timings.
5. The dust removing mechanism according to any one of claims 1 to 4, wherein a plurality of dust removing members are provided and arranged so as to abut on different portions of the rib.
6. 6. A dust collecting container for generating a swirling air flow formed with an air inlet containing dust, and a dust removing mechanism for removing dust adhering to the filter, the dust removing mechanism according to any one of claims 1 to 5. An electric vacuum cleaner provided with a dust collecting part comprising the dust removing mechanism described above in a detachable manner.
7. A dust collecting container in which a dust inlet is formed to generate a swirling airflow;
   A compression member provided in the dust collecting container so as to be axially rotatable and compressing dust when the shaft rotates in a predetermined direction;
   A bottom lid provided at the lower end of the dust collecting container,
   The bottom cover has an inner surface that closes a lower end of the dust collecting container, and a slope that rises in a direction opposite to a direction in which the compression member rotates when the dust is compressed is formed on the inner surface, A dust collector with a step formed by the end of the slope.
8. The dust collecting portion according to claim 7, wherein the step is formed so as to extend in a direction orthogonal to a rotation direction of the compression member.
9. The inner surface includes a bottom portion and a peripheral wall portion that rises from a peripheral edge of the bottom portion,
   The dust collecting part according to claim 7 or 8, wherein the slope and the step are formed on one or both of the bottom part and the peripheral wall part.
10. A vacuum cleaner provided with the dust collecting part according to any one of claims 7 to 9 in a detachable manner.

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