JP2597190Y2 - Vacuum cleaner and its extension tube unit - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vacuum cleaner in which a brush base having a brush is mounted on a suction pipe from a vacuum cleaner body to a suction head, and the vacuum cleaner.
Attached to the brush stand having the brush provided
It relates to an extension pipe unit .

[0002]

2. Description of the Related Art Household vacuum cleaners are used by connecting an extension pipe to a flexible hose connected to the main body of the cleaner and attaching a suction head having a suction port to a tip of the extension pipe. ing.

[0003] The conventional vacuum cleaner is provided with brushes used as accessories for cleaning a shelf, a desk, or a narrow place. This accessory is used by being attached to the end of an extension pipe or a hose as necessary. However, according to this conventional vacuum cleaner, the suction head must be removed from the extension pipe every time the size of the area to be cleaned changes, and new accessories must be attached. I needed to.

[0004] For this reason, for example, Japanese Patent Laid-Open Publication No.
As disclosed in Japanese Patent Application Publication No. 43921/43, there is known a vacuum cleaner in which a cleaning tool having a brush is coaxially incorporated in a distal end opening on the upstream side of a suction hose.

[0005] The cleaning tool disclosed in the prior art includes a cylindrical housing fitted to the outer periphery of a hose. A cleaning ring is held in the housing, and a flexible brush is implanted in the cleaning ring. The brush is provided continuously in the circumferential direction of the cleaning ring, and the brush surrounds the opening at the distal end of the hose.

Therefore, when the extension tube is removed from the hose in cleaning a narrow place, the brush is exposed at the opening at the tip of the hose serving as a suction port, so that the cleaning operation can be performed without attaching special accessories. It has become.

[0007]

However, in the conventional cleaning tool, the flexible brush is provided continuously in the circumferential direction so as to surround the opening at the tip of the hose. May be sucked from the entire periphery of the distal end opening of the hose, and the opening area of the distal end opening may be significantly reduced. Therefore, there is a problem that not only the suction force is reduced, but also the brush itself is bent by the suction of the brush, and the effect of scraping out dust and dirt on the surface to be cleaned is reduced.

Further, if the brush is continuous in the circumferential direction of the opening at the tip of the hose, lint and dust are easily entangled with the brush, and it is difficult to remove the entangled lint and the like. In particular, since this brush is always exposed to the outer periphery of the hose, entangled lint and the like are easily noticeable, leaving a problem in appearance and hygiene.

[0009] Further, if the brush is lengthened so that dust can be easily scraped out, the brush tends to fall down. Therefore, when the brush is continuous in the circumferential direction of the opening at the tip end of the hose as in the conventional case, the brush is The tip opening of the hose may be closed by the fall. From this,
When the main body of the vacuum cleaner is operated, the brush is more easily sucked, which causes a reduction in suction power. In addition, when the extension tube is connected to the hose, the brush may be bitten at the fitting portion between the hose and the extension tube.

Therefore, in the conventional cleaning tool, the brush cannot be lengthened due to its structure, and there is still room for improvement in improving the effect of scraping out dust.

The present invention has been made in view of such circumstances, and it is possible to prevent the end opening of a hose or an extension pipe from being blocked by a brush, and to maintain the suction force satisfactorily while extending the opening by the brush. It is possible to prevent the workability of the connection between the pipe and the hose or the suction head from being impaired, and it is also advantageous in appearance and hygiene.
The appearance and use of the brush when not in use
Electric sweeper that can be stored so that no brush gets in the way
It is intended to provide a remover and its extension pipe unit.

[0012]

In order to achieve the above object, a vacuum cleaner according to the present invention is provided with a hose connected to a main body of the cleaner and detachably connected to the hose, and the hose and a suction head. And a brush stand attached to the suction upstream end of at least one of the extension pipe and the hose,
Projecting from the brush base, a brush scratching the surface to be cleaned, prior to
A part of the extension pipe or hose
A cover attached to the outer peripheral surface of the base.

The brush stand has a use position where the brush protrudes from a distal end opening of the hose or the extension pipe on the upstream side of the suction, and a position where the brush is sucked downstream of the distal end opening of the hose or the extension pipe. It mounted movably over a storage position, and the brush, with which partially provided without continuously in the circumferential direction of the distal opening, the storage position the brush
, Is covered by the cover . Further, in order to achieve the same object, an extension pipe unit of the vacuum cleaner according to the invention of claim 2 includes an extension pipe,
A brush base attached to the tip of the extension pipe on the upstream side of the suction, a brush protruding from the brush base and scratching a surface to be cleaned, and a part of the extension pipe,
A cover attached to a peripheral surface , wherein the brush stand is used at a position where the brush is projected from a tip opening on a suction upstream side of the extension pipe, and the brush is set at the tip opening of the extension pipe. Is mounted movably over the storage position on the suction downstream side of the part, and
The brush is provided partially without being continuous in the circumferential direction of the tip opening , and the brush is
It is characterized in that it is covered by the cover when it is in the storage position .

[0014]

According to the first aspect of the present invention, the brush for scraping is provided partially without being continuous in the circumferential direction of the opening of the end of the hose or the extension pipe. Even if it is sucked into the front end opening, the front end opening is not closed over the entire circumference, and an opening area necessary for suction can be secured. In addition, since the brush is not continuous in the circumferential direction of the tip opening portion and is interrupted in the middle, it is difficult for lint and the like to become entangled with the brush, and even if it is entangled, a portion without the brush Can be easily removed by inserting a fingertip or the like.

[0015]

When the brush stand is moved to the retracted position, the brush is located downstream of the opening at the tip of the brush so that the brush is connected to the connection between the hose and the extension pipe or the suction pipe. It does not fall down to face the connection with the head. Therefore, even if the brush is lengthened, the opening area of the distal end opening is not reduced, and the brush is not bitten, so that the scraping performance of dust and the like can be improved. In addition, move the brush base to the storage position
The extension pipe or hose along the outer surface.
Because the brush base and brush are extended tube or hose
Storage posture without compromising
And the cover in this storage position
Since the brush can be covered from the outside,
Can be stored without exposing the web, improving the appearance
You. Also, in the invention of claim 2, since the brush for scraping out dust and the like is provided partially without being continuous in the circumferential direction of the distal end opening of the extension tube, this extension tube is connected to the cleaner body. In use, even if the brush is sucked into the opening at the tip, the opening at the tip is not closed over the entire circumference, and an opening area necessary for suction can be secured. In addition, since the brush is not continuous in the circumferential direction of the opening at the tip and is interrupted in the middle, it is difficult for lint and the like to become entangled with this brush. Can be easily removed. When the brush base is moved to the retracted position, the brush is located downstream of the opening at the suction end, so that the brush may fall down so as to face the connection between the extension tube and the suction head. Absent. Therefore, even if the brush is lengthened, the opening area of the distal end opening is not reduced, and the brush is not bitten, so that the scraping performance of dust and the like can be improved.
In addition, when the brush base is moved to the storage position, the brush
The base and brush are stored along the outer peripheral surface of the extension tube.
Without protruding from the extension tube
Can be made compact, and in this storage position
The cover covers the brush from the outside
Can be stored without exposing the brush, improving the appearance
it can.

[0016]

1 to 8 show a first embodiment of the present invention.
It will be described based on the following.

FIG. 7 shows a household vacuum cleaner 1, which has a vacuum cleaner main body 2.
The cleaner main body 2 has a hose insertion port 3 connected to a dust collection chamber (not shown), and one end of a flexible hose 4 is detachably connected to the hose insertion port 3. .

At the other end of the hose 4, a hard connection pipe 5 is provided continuously. The connection pipe 5 includes a grip portion 6 that a person to be cleaned grips with fingers, and a control panel 7 having a power switch and a control switch for setting strength of suction force. The grip portion 6 and the control panel 7 are arranged adjacent to each other on the upper surface of the connection pipe 5.

The connecting pipe 5 includes the first and second extension pipes 1.
0 and 11 are connected. At the downstream end of the suction of the extension pipes 10, 11, cylindrical fitting portions 10a, 11a are provided to protrude, respectively. Fitting portion 10a of first extension pipe 10
Is removably fitted to the suction-side upstream end opening 12 of the connection pipe 5, and the fitting part 11 a of the second extension pipe 11 is connected to the suction-side upstream end opening of the first extension pipe 10. It is adapted to be detachably fitted to the part 13.

The second extension pipe 11 has the suction head 1
5 is removably connected. Suction head 1
5 has a box-shaped head body 16 which is elongated in the left-right direction. A suction port (not shown) is opened on the lower surface of the head main body 16, and a cleaning blade 17 that is driven to rotate by a motor is disposed in the suction port. At the center of the rear part of the head main body 16, a connecting pipe 18 connected to the suction port is supported so as to be rotatable in the vertical direction. At the suction downstream end of the connecting pipe 18, a cylindrical fitting part 18 a is projected, and this fitting part 18 a is detachably fitted to the tip opening 19 on the suction upstream side of the second extension pipe 11. Are to be combined.

In the case of this embodiment, each of the extension pipes 10,
11 and fitting portions 10a, 11a, 18a of the connecting pipe 18
A pair of terminal pins 20
Are protruding respectively. When the fitting portions 10 a, 11 a, 18 a are inserted into the extension openings 12, 13, 19 of the extension tubes 12, 13 and the connection tube 5, these terminal pins 20 are located above the tip openings 12, 13, 19. 2 and 3 are inserted into a pair of pin holes 21 (shown in FIGS. By this insertion, the motor for rotating the cleaning blade 17 and the power supply unit in the cleaner main body 2 are electrically connected via the control panel 7, and by operating the control panel 7, the rotation of the cleaning blade 17 is reduced. It is controlled.

By the way, above the connecting pipe 5 connected to the hose 4
A cleaning tool 25 according to the present invention is attached to the distal end on the flow side and the distal end on the upstream side of the first extension pipe 10, respectively. Since these cleaning tools 25 have the same structure,
In the present embodiment, the cleaning tool 25 attached to the first extension pipe 10 will be described below as a representative . First extension pipe 10 and below
An extension tube unit is formed with the cleaning tool 25 to be described.
Have been.

As shown in FIGS. 1 and 4, a brush base 26 made of synthetic resin is mounted on the outer peripheral surface of the distal end of the extension tube 10. As shown in FIG. 2, the brush stand 26 has a semi-cylindrical shape having a sectional shape along the outer peripheral shape of the extension tube 10. The brush base 26 is mounted so as to cover the extension tube 10 from below the extension tube 10 over a half circumference, and a pair of fittings having a circular shape is provided at a position biased to one end side along the axial direction. Holes 27a and 27b are opened. The fitting holes 27a and 27b are
Are opened at positions facing each other in the radial direction. In addition, a flexible brush 28 is provided at the opening edge on the other end side of the brush base 26.
Is implanted. The brush 28 is provided over the half without successive slightly in the circumferential direction of the extension tube 10, specifically shown in FIG. 1 (C) and 6
When the brush stand 26 is in the use position described later,
10 from the upper half circumference of the tip opening 13 on the upstream side of the suction
While being projected, the lower half circumferential side of the tip opening 13 is
It is provided open and protrudes in the axial direction from the opening edge of the brush stand 26 .

On the outer peripheral surface of the extension tube 10, a pair of cylindrical shaft portions 29a and 29b are protruded. Shaft 29
a and 29b protrude at positions close to the distal end opening 13 of the extension tube 10 at positions facing each other in the radial direction. Therefore, as shown in FIG.
6 covers the outer peripheral surface of the extension tube 10 so as to spread slightly, and fits the fitting holes 27a and 27b into the shaft portions 29a and 29b.
Are supported by the extension tube 10. The brush stand 26 is configured to be pivoted about the shaft portions 29a and 29b in the direction of the distal end opening 13 of the extension tube 10. By this rotation, the brush stand 26 is
As shown in FIG. 1B and FIG. 5, the brush 28 is retracted on the outer peripheral surface of the extension tube 10 rather than the tip opening 13 of the extension tube 10 by covering the lower surface of the extension tube 10. Then, the brush 28 is moved over a use position where the brush 28 is axially projected from the distal end opening 13 of the extension tube 10 so as to cover the upper surface of the extension tube 10. In this case, between the shaft portions 29a and 29b and the fitting holes 27a and 27b,
Sliding resistance is provided to the extent that free rotation of the brush base 26 can be suppressed. When the brush base 26 is rotated to the storage position and the use position, the brush base 26 has its rotation posture. Is to be held.

A handle 30 is provided on the outer peripheral surface of the brush base 26 to be used as a finger hook when the brush base 26 is rotated.

A cover 35 made of a synthetic resin for holding the brush stand 26 in the storage position is attached to the outer peripheral surface of the extension tube 10. As shown in FIG. 4, the cover 35 has a semi-cylindrical shape having a cross-sectional shape along the outer peripheral shape of the extension tube 10. The cover 35 is mounted so as to cover the extension tube 10 from below the extension tube 10 over a half circumference, and a radially inwardly extending flange is provided at an opening edge portion of the cover 35 facing in the radial direction. Portions 36a and 36b are protruded. A pair of guide grooves 37a and 37b extending in the axial direction are formed on the outer peripheral surface of the extension tube 10. The guide grooves 37a, 37b are opened at an opening end face continuous with the distal end opening 13 of the extension tube 10, and the distal ends of the flange portions 36a, 36b are slidably fitted into the guide grooves 37a, 37b through the open ends. Have been.

For this reason, the cover 35 is supported so as to be slidable in the axial direction of the extension tube 10, and this slide causes the brush of the brush base 26 at the storage position as shown in FIG. 28, a closed position that covers 28 from the outside,
The brush 28 is moved away from the brush stand 26 to an open position where the brush 28 is exposed.

At the end of the cover 35 on the side of the brush stand 26,
An elastically deformable engaging piece 40 is integrally provided to protrude. The engagement piece 40 extends toward the brush stand 26, and has a hook portion 41 at a tip end thereof. Then, when the cover 35 is moved toward the closed position in a state where the brush base 26 is rotated to the storage position, the hook portion 41 at the tip of the engagement piece 40 is detachably attached to the handle 30 of the brush base 26. It is caught. This hook part 4
The engagement of the handle 30 with the handle 30 allows the brush stand 26 to be held in the retracted position, the brush 28 to be obscured by the cover 35 from the outside, and the cover 35 to be slidably held in the closed position. It has become.

Next, how to use the vacuum cleaner 1 having such a configuration will be described.

When cleaning a large place in a room such as on a floor or a tatami mat, as shown in FIG.
The suction head 15 is connected via the suction heads 0 and 11, and the work to clean the floor or the like to be cleaned is performed through the suction head 15.

When cleaning a narrow surface 42 to be cleaned, such as furniture, stairs, shelves, or the like, first, the second extension pipe 11 is pulled out of the first extension pipe 10. Then, the hook portion 41 of the engagement piece 40 is pressed, and the hook portion 41 and the handle 30 are pressed.
Is released, the cover 35 is slid toward the open position to expose the brush 28 of the cleaning tool 25, as shown in FIG. When the cover 35 is slid to the open position, the holding of the brush base 26 is released at the same time. Therefore, the handle 30 of the brush base 26 is grasped with a fingertip, and the brush base 26 is turned upward with the shaft portions 29a and 29b as fulcrums. The brush base 26 is rotated to move the brush base 26 to the use position. By this movement, as shown in FIG. 1C and FIG. 6, the cleaning tool 25 is positioned on the upper surface side of the extension tube 10, and the brush 28 protrudes from the distal end opening 13 of the extension tube 10. Is held.

As a result, as shown in FIG. 8, the dust and the like on the narrow surface 42 to be cleaned can be scraped out by the brush 28 of the cleaning tool 25. It is sucked in from the front end opening 13 of 10. This
When using the extension tube 10 with the brush 28,
Normally, as the extension pipe 10 is used in an oblique posture,
The brush 28 is pressed against the surface 43 to be cleaned in an oblique posture.
I can Therefore, the brush 28 is opened at the end of the extension tube 10.
The mouth 13 is obliquely closed from the front and
Because the rear side is opened, the
The suction area is partitioned by a brush 28 that extends over half a circle,
It is scraped into the surface 43 to be cleaned facing the inside of the brush 28.
Dust and dirt can be easily sucked in. Also,
In such a use state, the brush 28 is
When scraping garbage, etc. in contact with
Receives a force that warps outward and upward. Therefore,
Suction with the brush 28 not in contact with the surface 43 to be cleaned
Even if it is deformed under the force of
The return makes it possible to correct the suction of the brush 28.

When the cleaning operation by the cleaning tool 25 is completed, the grip 30 is gripped by a fingertip to rotate the brush base 26 downward, and the brush base 26 is stored as shown in FIG. Move to position. In this state, the cover 35 in the open position is slid to the closed position, and the hook portion 41 of the cover 35 is hooked on the handle 30. As a result, the brush stand 26 is held in the storage position, and the brush 28 is covered by the cover 35.

Further, as shown in FIG. 3, the cleaning tool 25 is located at an intermediate position between the storage position and the use position, that is, at a position where the brush base 26 faces the distal end opening 13 of the extension tube 10. When the rotation is stopped, the inner surface of the brush base 26 that is curved in an arc shape becomes the end opening 13 of the extension tube 10.
, And a suction gap S is formed here.
Since the gap S is communicated with both end portions of the brush stand 26 along the axial direction, when the brush 28 protruding downward from the brush stand 26 is brought into contact with the surface 43 to be cleaned, the tip of the extension tube 10 The opening 13 is, as shown by the arrow in FIG.
Outside air is sucked not only from the surface 43 to be cleaned but also from the front and above the extension tube 10.

For this reason, the suction force acting on the surface 43 to be cleaned is reduced, and for example, when cleaning a desk surface on which documents are placed or thin bedding, it is possible to prevent the documents and bedding from sticking to the brush 28. can do.

According to the first embodiment of the present invention,
The brush 28 for scraping out dust is provided in a range extending over a half circumference of the distal end opening 13 without being continuous in the circumferential direction of the distal end opening 13 of the extension tube 10. The portions facing each other in the direction are opened so as to continue to the front end opening 13 as they are. For this reason, even if the brush 28 is sucked into the tip opening 13 of the extension tube 10 during operation of the cleaner body 2, the tip opening 13 is not blocked over the entire circumference, and the suction is performed. Required opening area can be secured.

Further, since the brush 28 is present only in a half circumference of the distal end opening 13, it is difficult for lint and the like to become entangled with the brush 28. Even if the lint is entangled, the portion of the brush stand 26 that radially opposes the brush 28 is opened as it is, so that a fingertip is inserted through this open portion to remove the tangled lint and the like. It can be easily removed.

In particular, in the case of the present embodiment, when the cleaning tool 25 is not used, the brush 28 is covered with the cover 35, so that the brush 28 that is easily soiled does not need to be exposed to the outside, and lint is not applied to the brush 28. This is hidden even when attached. Therefore, it is convenient in terms of appearance and the brush 2
8 can prevent lint and garbage from falling off, and is also sanitary.

The brush stand 26 has a use position where the brush 28 projects from the distal end opening 13 of the extension tube 10, and a retracted position where the brush 28 is retracted on the outer peripheral surface of the extension tube 10 beyond the distal end opening 13. The brush 28 faces the fitting portion with the second extension tube 11 in a state in which the brush stand 26 is rotated to the storage position since the brush 28 is pivotally attached to the extension tube 10. However, it does not fall into this fitting portion.

Accordingly, when the first extension pipe 10 and the second extension pipe 11 are connected, the brush 28 does not bite into the fitting portion between the distal end opening 13 and the fitting portion 11a. That is, the brush 28 can be lengthened accordingly. Therefore, the performance of scraping out dust in a narrow place can be improved, and the brush 28 can be cut by biting and the extension pipes 10, 1
1 can prevent the deterioration of the connection workability. Also,
As described above, the brush stand 26 is rotatably attached to the extension tube 10. Therefore, when the brush stand 26 is moved to the use position and the storage position, the brush stand 26 is moved in the circumferential direction of the extension tube 10. Instead, the brush table 26 can be easily switched between the use position and the storage position by simply rotating so as to intersect the distal end opening 13 of the extension tube 10, which is convenient. When the extension pipe 10 is moved to the storage position,
The front opening 13a is viewed from the front and the brush 28
It is possible to place the, without brush 28 is in the way in attachment and detachment of the suction head 15 or the like to the distal end opening portion 13 can be easily detached. Moreover, when the brush base 26 is moved to the storage position, the brush base 26
Since the brush 28 and the brush 28 are stored on the outer circumference of the extension tube 10, the brush stand 26 and the brush 28 do not protrude around the extension tube 10, and the storage posture can be made compact. For this reason, when the extension tube 10 and the vacuum cleaner are stored, the stored brush table 26 and the like are less likely to interfere, and the brush table 26 and the like can be less likely to be damaged by external illness.
In a state but stored on the outer peripheral surface of the extension tube 10, cover
35 puts the brush 28 between this and the extension tube 10
So you can cover this brush 28 from the outside
Therefore, the brush 28 can be stored without exposing it,
The court can be improved.

Further, in this embodiment, when the cleaning tool 25 is rotated to the use position, the brush base 26 covers the upper surface of the distal end of the extension tube 10, and the brush base 26 covers the periphery of the pin hole 21. When the tip opening 13 of the extension tube 10 is used as a suction port, there is an advantage that the pin hole 21 does not contact the surface 42 to be cleaned, and the pin hole 21 can be prevented from being deformed or clogged.

The present invention is not limited to the first embodiment, and FIGS. 9 and 10 show a second embodiment of the present invention.

In the second embodiment, the extension pipe 10 and the connection pipe 5
The mounting position of the cleaning tool 25 with respect to the first embodiment is different from that of the first embodiment, and the other configuration is the same as that of the first embodiment.

In the second embodiment, the cleaning tool 25 attached to the connecting pipe 5 will be described as a representative.

As shown in FIG. 9, the brush stand 26 and the cover 35 are mounted so as to cover the connection pipe 5 from above the connection pipe 5 over a half circumference. It is located continuously in front of the control panel 7. When the brush base 26 is rotated toward the use position, the brush base 26 is connected to the connecting pipe 5.
And the front opening 13 is located in front of the brush 28.
Is located.

According to the second embodiment having such a structure, when the grip portion 6 of the connection pipe 5 is gripped by hand, the brush 28 is located behind the distal end opening 13 serving as a suction port. For this reason, as shown in FIG. 10, when cleaning the lower surface of the shelf 51 by looking up from below, dust attached to the lower surface of the shelf 51 can be raked by the brush 28 in the direction of the tip opening 13. , The usability is improved.

In the above embodiment, the brush base is rotated with respect to the extension pipe and the connection pipe. However, the present invention is not limited to this, and the brush base is linearly moved in the axial direction of the extension pipe and the connection pipe. May be reciprocated.

In the case of this configuration, the brush base is not limited to a semi-cylindrical shape, but is formed in a cylindrical shape having a circular cross section, and the brush is partially provided at one place of the brush base, or It may be provided at a plurality of locations spaced apart in the circumferential direction.

[0049]

The present invention configured as described above has the following effects. Claim 1 of the by <br/> lever extension pipe unit of the electric vacuum cleaner according vacuum cleaner and to claim 2 of the invention, during operation of the cleaner body, the brush at the tip opening of the extension tube or hose Even in the case of suction, the front end opening is not closed over the entire circumference, and the opening area required for suction can be secured.

Moreover, the lint and the like are hardly entangled with the brush, and even if the lint is entangled with the brush, the lint and the like can be easily removed by inserting a fingertip or the like from a portion where the brush is not provided. It is.

When the brush base is moved to the retracted position, the brush is located on the outer circumference of the extension tube or hose, so that the brush faces the connection portion of the hose or extension tube or is connected to the connection portion of the hose or extension tube. You won't fall. For this reason, when connecting the extension pipe and the hose or the suction head, the brush does not need to be caught in the opening at the tip thereof, and cutting of the brush due to the biting and deterioration of workability of connecting the extension pipe or the hose are prevented. be able to. And when not using the brush base and brush
Can be stored in such a way that they fit along the outer peripheral surface of the extension tube.
So that the protrusion from the extension tube or hose is reduced.
To keep the brush stand and brush out of the way.
Not only can the brush be retracted, but also
The cover in the stowed position is
It will not be exposed and will improve the appearance
it can.

[Brief description of the drawings]

FIG. 1A is a side view showing a state in which the cleaning tool is rotated to a storage position in the first embodiment of the present invention.
(B) is a side view which shows the state which removed the cover from the cleaning tool. (C) is a side view which shows the state which rotated the cleaning tool to the use position.

FIG. 2 is a view as viewed in the direction of the arrow A in FIG.

FIG. 3 is a side view showing a state in which the cleaning tool is rotated to a middle position between a storage position and a use position in a partially sectional view.

FIG. 4 is an exploded perspective view showing an attachment structure of a cleaning tool and a cover to the extension pipe.

FIG. 5 is a perspective view showing a state where the cleaning tool is rotated to a storage position.

FIG. 6 is a side view showing a state where the cleaning tool is rotated to a use position.

FIG. 7 is a perspective view of the entire vacuum cleaner.

FIG. 8 is a perspective view showing a state where cleaning is performed using a cleaning tool attached to a distal end portion of the extension tube.

FIG. 9A is a side view showing a state in which the cleaning tool is rotated to a storage position in the second embodiment of the present invention.
(B) is a side view which shows the state which rotated the cleaning tool to the use position.

FIG. 10 is a perspective view showing a state where cleaning is performed using a cleaning tool attached to a connection pipe of a hose.

[Explanation of symbols]

2 ... vacuum cleaner body, 4 ... hose, 10, 11 ... extension pipe, 1
2, 13 ... tip opening, 15 ... suction head, 26 ...
Brush stand, 28: brush, 35: cover, 42: surface to be cleaned.

──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Tetsuya Mori 69, Yanagicho, Yuki-ku, Kawasaki-shi, Kanagawa Pref. Toshiba Product Testing Center Co., Ltd. (56) References 1-108252 (JP, U) (58) Fields studied (Int. Cl. ⁶ , DB name) A47L 9/06 A47L 9/02 A47L 9/24

Claims (2)

(57) [Scope of request for utility model registration] 1. A hose connected to a cleaner body, an extension pipe detachably connected to the hose and connecting the hose and a suction head, and a suction upstream side of at least one of the extension pipe and the hose. A brush base attached to the tip end, a brush protruding from the brush base and scratching the surface to be cleaned, and a part of the extension pipe or hose,
A cover attached to an outer peripheral surface of a hose , wherein the brush stand is used at a position where the brush is projected from a tip opening on a suction upstream side of the hose or the extension tube, and the brush is attached to the hose or the extension tube. And the brush is movably attached to the storage position on the suction downstream side of the tip opening, and the brush is partially provided without being continuous in the circumferential direction of the tip opening. With
When the brush is in the storage position, the cover
Vacuum cleaner characterized by being obscured by . 2. An extension pipe, a brush base attached to a tip of the extension pipe on a suction upstream side, a brush protruding from the brush base and scratching a surface to be cleaned, and a part of the extension pipe. Housed on the outer surface of the extension pipe
A cover attached to the brush, wherein the brush stand is used at a position where the brush protrudes from a tip opening on the upstream side of the suction of the extension tube, and the brush is positioned more than the tip opening of the extension tube. suction is movably mounted over the storage position on the downstream side, and the brush, along with being partially provided without continuously in the circumferential direction of the distal end opening portion, the bra
The cover is obscured by the cover when in the storage position
Extension pipe unit of the electric vacuum cleaner, characterized in that that.