JP2003199693A - Vacuum cleaner - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a convenient and miniaturized cleaner in which a dust collection chamber is configured small, further, dust can be effectively stored in the dust collection chamber and a dust collection filter is prevented from being clogged with dust. <P>SOLUTION: The vacuum cleaner has a motor-driven air blower and the dust collection chamber arranged inside a sucker and a mountain-folded filter is arranged between the dust collection chamber and the motor-driven air blower. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric vacuum cleaner, and more particularly to an electric vacuum cleaner that collects dust in a dust collecting chamber for cleaning by utilizing a flow of air generated by an electric blower.

[0002]

2. Description of the Related Art Conventionally, as a vacuum cleaner called a stick type, a vacuum cleaner having a structure described in Japanese Patent Laid-Open No. 2000-217757 is known. That is, a rotating chamber is accommodated by forming a brush chamber that is openably and closably covered by a suction port cover in a front portion defined by a partition wall that is erected on the suction port base. The cup-shaped dust collecting box with the dust collecting part and the electric blower installed side by side on the rear side, and the suction port opened on the side, is supported by the dust collecting part receiving part and is detachable in a sideways manner. The suction port is closely connected to the rear end of the suction passage. Further, the dust collecting filter is configured to be housed in the dust collecting box in an eccentric state.

Further, JP-A-9-192056, JP-A-9-192059 and JP-A-9-192062.
There is a gazette. These have a floor running head with wheels and an elongated handle rotatably connected to the head, the head has two motors, one of which is an impeller and the other of which rotates. It is connected to the brush. The head has a rechargeable battery for supplying electricity to the motor and a three-position electric switch,
Vacuum cleaners have been proposed in which all the working elements of the vacuum cleaner, including the air filter and the dust collecting cup, are in the floor running head and the handle has no working elements.

Further, Japanese Examined Patent Publication No. 7-53142 discloses an electric cleaning having a cleaner body having a dust collecting chamber and an electric blower, and a suction body connected to the cleaner body via a hose and an extension pipe. In the machine, an electric vacuum cleaner in which a dust collecting chamber and an electric blower are provided on the suction body side has also been proposed. And, in this electric vacuum cleaner, in addition to the floor moving type vacuum cleaner that is used by connecting the cleaner body and the suction body, the suction body connected to the cleaner body is removed, and the electric blower on the suction body side is installed. It can also be used as a stick type vacuum cleaner that is driven to collect dust in the dust collecting chamber on the suction body side.

[0005]

Since such a small electric vacuum cleaner must be constructed in a small size, it is necessary to downsize the dust collecting chamber, and the area of the dust collecting filter is also small. Therefore, it is desirable to make the dust collection chamber small and to efficiently accumulate the dust inside so as to prevent the dust collection filter from being clogged with the dust. Moreover, it is desirable that the ventilation passage has a small ventilation resistance.

The Japanese Patent Publication No. 7-53142 described above provides two types of use modes, that is, a floor moving type cleaner and a stick type cleaner. The dust in the dust collection chamber inside the suction body that has been collected when used as a vacuum cleaner must be opened and closed by always opening and closing the lid or the like that covers the dust collection chamber, which is a problem. In particular, recent vacuum cleaners have been made smaller and lighter due to improved operability, and the dust collection chamber inside the suction chamber cannot be made large. The number of discards increases.

An object of the present invention is to make a dust collecting chamber small in a small electric vacuum cleaner and to effectively accumulate dust in the dust collecting chamber to prevent clogging of the dust collecting filter with dust. To provide a compact vacuum cleaner that is easy to use.

[0008]

To achieve the above object, the present invention is characterized in that a suction body having an opening facing a surface to be cleaned, and an electric blower arranged in the suction body. In the electric vacuum cleaner having a dust collection chamber and having a filter between the dust collection chamber and the electric blower, the filter is mountain-folded.

A feature of the present invention is that, in the first means, an inlet opening through which dust flows into the dust collecting chamber and an outlet opening through which dust flows out are provided, and the mountain of the filter is provided. The folding line direction is arranged so as to be the same as the flow path direction connecting the inlet opening and the outlet opening.

Further, a feature of the present invention is that in the second means, the folding line direction of the mountain fold of the filter is such that the center of the inlet opening and the center of the outlet opening are centered with respect to the centerline. It lies in the range of ± 45 °. Further, a feature of the present invention is that an outlet opening through which dust flows out is provided in the dust collecting chamber, and the outlet opening through which dust flows out into the dust collecting chamber provided in the suction body as compared with the area of the outlet opening. The cross-sectional area of the opening of the suction body communicating with the above is increased.

Further, a feature of the present invention is that a rib inclined toward the opening is provided in the dust collecting chamber near the outlet opening where dust in the dust collecting chamber on the suction body side flows out. .

[0012]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below.
A description will be given with reference to the drawings. First, the floor moving type vacuum cleaner according to the embodiment of the present invention will be described with reference to FIG.
FIG. 5 is an external perspective view of a floor moving type vacuum cleaner according to an exemplary embodiment of the present invention.

In FIG. 5, reference numeral 101 denotes a cleaner body, which has a dust collecting chamber 111, an electric blower 112, and a cord reel for winding a power cord (not shown) therein. One end of a hose 102 is connected to the cleaner body 101 so as to communicate with the dust collection chamber 111. Reference numeral 103 denotes a hand operation unit, one end of which is connected to the other end of the hose 102. The hand operation unit 103 is provided with a hand switch 104 for switching the operation of the vacuum cleaner. Reference numeral 108 denotes a wireless signal transmission unit that transmits an operation signal to the wireless signal reception unit 109 (first wireless signal reception unit) of the cleaner body 101 in response to the operation of the hand switch 104. Reference numeral 105 denotes an extension pipe, one end of which is connected to the other end of the hand operation unit 103.
A plurality of extension tubes 105 (two in this embodiment) are connected, and a rechargeable secondary battery is detachably provided on the extension tube on the surface to be cleaned side. 106
Is a mouthpiece and is connected to the other end of the extension pipe 105. Reference numeral 106a is a suction cover that covers the upper portion of the suction opening of the suction member 106. Reference numeral 110 denotes a wireless signal receiving unit (second wireless signal receiving unit) provided on the suction body 106, which receives a signal transmitted from the wireless signal transmitting unit 108 in response to an operation of the hand switch 104. (First Embodiment) Next, a first embodiment of the present invention will be described with reference to FIGS. FIG. 1 is a top view of a state in which an upper case and a mouthpiece cover 106a of a mouthpiece 106 according to an example of an embodiment of the present invention are removed. FIG. 2 is an external perspective view of a stick type vacuum cleaner according to an exemplary embodiment of the present invention.

The stick type vacuum cleaner is roughly composed of a suction body 106, an extension tube 105, and a hand operation unit 103 for operating the suction body 106. In this embodiment,
The hand operation unit 103 is configured separately from the extension pipe 105, and can be freely separated or connected from the extension pipe 105. Reference numeral 207 denotes a dust collection chamber that can be attached to and detached from the suction body 106. This dust collecting chamber is formed of a transparent or semi-transparent member so that the amount of collected dust can be visually observed directly. Further, the dust collection chamber 207 may be configured such that a part thereof can be opened / closed or removed to remove the collected dust.

In FIG. 1, 201 is a rotary cleaning member, 20
2 is an electric motor for driving the rotary cleaning body 201, 203
Is a circuit board, 204 is a drive belt, 220 is an electric blower, and the blower 206 and the electric motor 2 that drives the blower 206
It is composed of 05. 207 is a dust collection chamber that can be attached to and detached from the suction body 106, and 208 is a filter. Here, the air containing dust flows into the dust collecting chamber 207 from the brush chamber 222, and is separated into dust and air in the dust collecting chamber 207.

In this embodiment, as shown in FIG.
The electric blower 220 is arrange | positioned in 06. The electric blower 220 is arranged such that the rotation axis 223 of the electric blower 220 is parallel to the longitudinal direction of the opening 221 facing the surface to be cleaned, and communicates from the dust collection chamber 207 to the electric blower 220. An air passage 224 is provided.
The center 224a of the inlet of the air passage 224 is connected to the opening 2
It is characterized in that it is arranged closer to the brush chamber 222 than the central axis 207a of the dust collecting chamber parallel to the longitudinal direction of 21.

Due to the above-described structure of the present invention, the air from the brush chamber 222 to the dust collecting chamber 207, the filter 208, the air passage 2
It flows in a sudden turn in the order of 24 (arrow A in the figure). On the other hand, since dust has a higher density than air, it cannot make a sharp turn like air. Therefore, the inertial force when flowing into the dust collection chamber 207 causes the dust collection chamber 207 to flow to the side opposite to the brush chamber (arrow B in the figure), and dust is accumulated in order from the side opposite to the brush chamber of the dust collection chamber 207. Will be done. Therefore, when dust is accumulated in the dust collection chamber 207, the air passage 224 communicating with the electric blower 220 can prevent an increase in ventilation resistance due to clogging of dust. Further, it is possible to prevent the filter from being clogged with dust. The center 224a of the inlet of the air passage 224 is the central axis 2 of the dust collecting chamber.
Since it is located closer to the brush chamber 222 than to 07a, the dust accumulation volume can be increased.

Therefore, dust can be effectively accumulated,
There is a feature that the dust collection chamber 207 can be downsized. Further, since the increase in ventilation resistance can be prevented, even if dust is collected in the dust collecting chamber 207, the air flow of the electric blower 220 is ensured, and the dust collection can be increased.

Here, the inlet side 224b of the air passage 224 that communicates with the electric blower 220 from the dust collecting chamber 207.
Even if is disposed closer to the brush chamber 222 side than the outlet side 224c, the efficiency of the dust collection chamber can be similarly improved.

Further, the rotary shaft 2 of the electric blower 220.
The central axis of the entrance of the dust collecting chamber 207 (20
7b), the central axis (207c) of the inlet opening 253a of the dust collecting chamber 207 is shifted to the anti-electric blower side (the other inlet side of the air passage), and dust is accumulated in the dust collecting chamber 207. When going, the air passage 224 communicating with the electric blower 220 can prevent or at least reduce the increase of ventilation resistance due to clogging of dust.

The dust collecting chamber 207 is configured to be detachable from the suction port 106, and the filter 208 can be removed from the dust collecting chamber 207 so that the dust can be easily discarded from the dust collecting chamber 207. (Second Embodiment) Next, a second embodiment of the present invention will be described with reference to FIG. FIG. 3 corresponds to the other embodiment of FIG. 1 and is a top view of a state in which the upper case and the suction port cover of the suction port 106 are removed. As shown in FIG. 3, in the suction body 106, the electric blower 220 has the electric blower 22 with respect to the longitudinal direction of the opening 221 facing the surface to be cleaned.
The rotary shafts 223 of 0 are arranged in parallel, and the dust collection chamber 20
Air passage 224 communicating from 7 to the electric blower 223
An example is shown in which the current plate 240 is projected into the dust collection chamber 207 so as to continue to the inlet side.

In this case, because of the above configuration, the brush chamber 2
22 to dust collecting chamber 207, filter 208, air passage 22
In the order of 4, the air suddenly turns and the air flows (arrow A in the figure), whereas the dust has a higher density than the air and cannot turn suddenly like the air, and due to the inertial force when flowing into the dust collecting chamber 207,
It flows to the side opposite to the brush chamber of the dust collecting chamber 207 (arrow B in the figure). Then, dust is accumulated in order from the side opposite to the brush chamber of the dust collecting chamber 207. At this time, 2 generated on the side opposite to the brush
The rectifying plate 240 prevents dust accumulated due to the next flow from flowing up into the air passage 224.

Therefore, when dust accumulates in the dust collecting chamber 207, the air passage 224 communicating with the electric blower 220 can reduce an increase in ventilation resistance due to clogging of dust. As a result, dust can be effectively accumulated even in the small dust collecting chamber 207, and an increase in ventilation resistance can be prevented or at least reduced, so that even if dust is accumulated in the dust collecting chamber 207. The air volume of the electric blower 220 is secured, and high dust collection can be achieved.

The filter 208 may be arranged so that the inlet side of the air passage 224 is projected into the dust collecting chamber 207. Further, the rotary shaft 22 of the electric blower 220
When the inlet opening 253a of the dust collecting chamber 207 is arranged on the side opposite to the electric blower as compared with the central axis of the dust collecting chamber 207 which is orthogonal to the electric blower 3, the electric blower is accumulated when dust accumulates in the dust collecting chamber 207. The air passage 224 communicating with 220 can prevent or at least reduce an increase in ventilation resistance due to clogging of dust.

The dust collecting chamber 207 is constructed so as to be detachable from the suction body 106, and the filter 208 can be removed from the dust collecting chamber 207 so that the dust can be easily discarded from the dust collecting chamber 207.

Further, FIGS. 4A and 4B show modified examples of mounting the flow straightening plate 240. FIG. 4A shows a case where the current plate 240 is attached with the air passage 224 extended (b1 = b2). The current plate may be formed separately and attached, but in this case, it may be formed integrally with the air flow path. In addition, the case of FIG. 4B is a modification of the case of FIG. 3, and is characterized in that the length of the rectifying plate projecting perpendicularly to the dust collecting chamber is set to b1> b2. In this case, the resistance to the air flow A in FIG. 3 is made as small as possible. Further, resistance is increased on the side where dust from the dust collecting portion of the anti-suction port flows into the air passage. As a result, the resistance of the air can be reduced, and the resistance of dust to the air flow path can be increased. Also in (A) of FIG. 4, by setting b1> b2, the same effect as in the case of (B) of FIG. 4 can be expected. (Third Embodiment) Next, a third embodiment of the present invention will be described. FIG. 5 is an external view of an electric vacuum cleaner according to another embodiment of the present invention. In FIG. 5, 101 is an electric vacuum cleaner body, 102 is a hose body, 103 is a handle grip, 104 is a hand switch, 105 is an extension tube, 106
Is a suction body having an opening facing the surface to be cleaned, 107 is a rechargeable battery, 108 is an optical remote control light emitting unit, 109
Is a main body side optical remote control light receiving section, and 110 is an inlet side optical remote control light receiving section. An electric blower 112 that generates a suction force is provided inside the main body casing that forms the outer contour of the electric vacuum cleaner body, and a dust collection chamber 1 is provided on the suction side of the electric blower 112.
11 is provided.

As shown in FIG. 5, a cleaner body 101 having an electric blower 112 and a dust collecting chamber 111, and a suction body 106 having an opening facing the surface to be cleaned and communicating with the dust collecting chamber 111. And the electric blower 2 on the suction body 106 side as well.
20 and a dust collection chamber 207 are provided, and the vacuum cleaner can be used by separating the suction body 106 side from the cleaner body 101.

In this embodiment, an electric vacuum cleaner having a cleaner body 101 and a suction body 106 is constructed as follows. A first electric blower 112 and a dust collection chamber 111 are provided on the cleaner body 101 side. The second electric blower 220 and the dust collecting chamber 207 are provided on the suction body 106 side. Then, the suction body 106 side is separated from the cleaner body 101 side so that it can be used independently. Also the mouthpiece 1
When the 06 side is connected to the cleaner body 101 side and used, the dust collection chamber 207 on the suction body 106 side and the dust collection chamber 111 on the cleaner body side are provided with an air passage (extension pipe 1
05, the hose body 102), and the suction body 106 with the electric blower 112 provided on the cleaner body 101 side.
Side dust collecting chamber 207 to the dust collecting chamber 11 on the cleaner body 101 side
1 is configured to be able to convey dust.

A dust collecting chamber 207 provided in the suction body 106 is shown in FIG. In FIG. 6, an inlet opening 253a and an outlet opening 253b are provided on a wall 251 of the dust collecting chamber 207 on the brush chamber 222 side and a wall 252 facing the wall, respectively.
The inlet opening 253a provided on the brush chamber 222 side is
The outlet opening 253b facing the inlet opening 253a
It is provided on the floor side, compared to. In the figure, the distance of C and D
When the distances are compared, C is smaller (C <D).

Due to the above-described structure of the present invention, when the suction body 106 side is separated from the cleaner main body 101 side and used independently, the electric blower 220 provided in the suction body 106 has a small and rechargeable battery 107. Since it is driven, it cannot generate a large air volume or static pressure. Therefore, by arranging the inlet opening 253a provided on the brush chamber 222 side at a short distance from the floor surface, it is possible to convey the dust sucked from the floor surface to the dust collecting chamber 207 even when the air volume is low. .

On the other hand, when the suction body 106 side is connected to the cleaner body 101 side for use, the cleaner body 1 is used.
Since the electric blower 112 provided in 01 can be driven by using a commercial AC power source, it is possible to increase the air volume and the pressure. Therefore, when the suction body 106 side is connected to the cleaner body 101 side for use, the inlet opening 25
The dust collecting chamber 207 on the suction body 106 side and the dust collecting chamber 111 on the cleaner body side have an air passage (extension pipe 105, hose body 10) on the outlet opening 253b side that opposes 3a.
2) side, the dust collecting chamber 207 on the suction body 106 side.
It is possible to convey the dust that has accumulated to the dust collecting chamber 111 on the cleaner body 101 side.

Incidentally, the brush chamber 222 of the dust collecting chamber 207.
A first valve body 209a that opens inwardly of the dust collection chamber 207 is provided at the side inlet opening 253a, and the first opening 253a is provided at the outlet opening 253a.
If a valve body 209b that opens outward from the dust collection chamber 207 is provided at b, dust is unlikely to spill from the dust collection chamber 207, and when the suction body 106 side is connected to the cleaner body 101 side for use. From the dust collecting chamber 207 on the suction body 106 side,
Dust can be transported to the dust collecting chamber 111 side of the cleaner body 101 side.

Further, the rotary shaft 2 of the electric blower 220.
When the inlet opening 253a of the dust collecting chamber 207 is arranged on the side opposite to the electric blower as compared with the central axis of the dust collecting chamber 207 orthogonal to 23, the dust blower collects the electric blower when the dust accumulates in the dust collecting chamber 207. The air passage 224 communicating with 220 can prevent an increase in ventilation resistance due to clogging of dust.

Further, the filter 208 is attached to the dust collecting chamber 207.
The inlet opening 253a and the outlet opening 253b are arranged so as not to project toward the center of the dust collecting chamber 207 from the line connecting the inlet opening 253a and the outlet opening 253b. As a result, when the suction body 106 side is connected to the cleaner body 101 side for use, the dust that has flowed in through the inlet opening 253a of the dust collection chamber 207 does not get caught in the filter 208 and the cleaner body 101. Can be transported to the dust collection chamber 111.

For these valve bodies, elastic bodies such as rubber and plate springs made of plastic may be used.
The 207 dust collecting chamber is configured to be detachable from the suction body 106, and the filter 208 can be removed from the dust collecting chamber 207 to easily dispose of the dust from the dust collecting chamber 207.

Further, the dust collecting chamber may be modified as shown in FIG. 4 (C). In this example, the center of the inlet opening 253a and the center of the outlet opening 253b are offset. An example of a structure is shown in which the inlet openings 253a and 253b are provided with curvature portions like R1 to R4 to prevent resistance to air flow and generation of swirl. (Fourth Embodiment) Next, a fourth embodiment of the present invention will be described with reference to FIG. In the present embodiment, as shown in FIG. 7, an exhaust valve 255 that can be opened and closed is provided near the exhaust port 254 disposed on the suction body 106 side, downstream of the electric blower 220.
Is provided. Since the present invention has the above-described configuration, the mouthpiece 106 is
When the side is separated from the cleaner body 101 side and used independently, the exhaust air E from the electric blower 220 provided in the suction body 106 is exhausted to the outside through the exhaust port 254.

On the other hand, when the suction body 106 side is connected to the cleaner body 101 side for use, the cleaner body 1 is used.
The exhaust valve 255 is completely or almost closed by the air F sucked by the electric blower 112 provided at 01.

If the exhaust valve 255 is provided so as to be completely closed, the electric blower 11 provided in the cleaner body 101 will be described.
Due to 2, it is possible to prevent a decrease in the air volume of the air F from the suction port of the suction body 106 due to the backflow air G from the exhaust port 254, and it is possible to maintain a high vacuum inside the suction body 106, so that high dust collection Can be achieved. Further, it is possible to prevent the life of the electric motor 205 from being shortened due to the reverse rotation of the electric blower 220 provided in the suction body 106 due to the reverse flow from the exhaust port 254.

If the exhaust valve 255 is almost closed so that only a small amount of air flow G is made to flow backward, the electric blower 220 provided on the suction body 106 is reversely rotated by the above-mentioned reverse flow from the exhaust port 254. It is possible to prevent the life of the electric motor 205 from being shortened by the above. Further, dust entangled in the filter 208 is provided with a dust collecting chamber 111 provided in the cleaner body 101.
Therefore, the filter 208 can be self-refreshed. That is, the filter 208 can be refreshed by driving and using the electric blower 112 with an AC power source. Also, the exhaust port 254
Since the decrease in the air volume of the suction port of the suction body 106 due to the backflow from the inside can be reduced and the inside of the suction body 106 can be maintained in a high vacuum, high dust collection can be achieved.

As described above, according to the present invention, the air flows sharply in the order of the brush chamber, the dust collecting chamber, the filter, and the air passage, whereas the dust has a higher density than the air and appears to be air. However, due to the inertial force when flowing into the dust collection chamber, the dust is accumulated in order from the side opposite to the brush chamber of the dust collection chamber. Therefore, when dust accumulates in the dust collecting chamber, an increase in ventilation resistance due to clogging of dust in the air passage communicating with the electric blower can be prevented. As a result, the dust can be effectively accumulated even in a small dust collecting chamber, and the increase in ventilation resistance can be prevented. Therefore, even if dust is accumulated in the dust collecting chamber, the air volume of the electric blower is secured and the dust collection is increased. be able to.

Further, by using the electric blower on the cleaner body side, there is an effect that the filter on the suction body side can be refreshed. (Fifth Embodiment) Next, a fifth embodiment of the present invention will be described with reference to FIGS. 8 is a vertical cross-sectional view of the suction body 106, FIG. 9 is an external perspective view of the dust collecting chamber 207 and the filter 208, and FIG. 10 is a vertical cross-sectional view of the dust collecting chamber 207. In addition, in this Embodiment, the secondary battery 107 is provided in the mouthpiece joint 106b.

As shown in FIG. 8, a dust collecting chamber 207 is detachably provided in the suction body 106. This dust collection room 20
7 is configured to be detached from the suction body 106 toward the upper side (the side opposite to the surface to be cleaned) of the suction body 106.

Then, in the dust collecting chamber 207, as shown in FIGS.
As shown in 0, a filter 208 is provided. The filter 208 is a filter unit 301 that filters dust.
And a seal member 302 that covers the outer periphery of the filter portion 301 and maintains airtightness with the dust collection chamber 207 when the filter 208 is mounted in the dust collection chamber 207. Also,
The filter portion 301 is formed in a mountain fold (corrugated) shape, and has a mountain fold portion 301 a that protrudes from the outside of the dust collection chamber 207 toward the inside, and is recessed from the outside of the dust collection chamber 207 toward the inside. It has a valley fold portion 301b. In this embodiment, the area of the filter can be increased by providing the mountain-fold (corrugated) filter, and the filter can be prevented from being clogged in a short time.

The dust collecting chamber 207 has an inlet opening 253a,
An outlet opening 253b located above the inlet opening 253a is formed. When used as the floor-moving type vacuum cleaner shown in FIG. 5, the sucked dust enters through the inlet opening 253a, passes through the inside of the dust collecting chamber 207 and exits through the outlet opening 253b, and inside the cleaner body 101. The dust is collected in the dust collecting chamber 111. The inlet opening 253a is provided in the dust collecting chamber 207 at the upstream side of the flow path of the dust collecting chamber 207, and the upper end portion is directed inward of the dust collecting chamber 207 fixed by the first fixing means 303a. A first valve body 209a to be opened is provided. In addition, the outlet opening 253b is provided outside the dust collecting chamber 207 at the downstream side of the flow path of the dust collecting chamber 207, and has an upper end outside the dust collecting chamber 207 fixed by the second fixing means 303b. A second valve body 209b that opens in the direction is provided.

The first valve body 209a has a dust collection chamber 2 which has a weak suction force as in the case of being used as a stick type vacuum cleaner.
It is made of a thin material such as rubber having a relatively low rigidity so that it can be easily opened inward. Furthermore, the first
Of the valve body 209a of the lower part of the dust collecting chamber 20 from the upper end side.
It is arranged so as to be located inside 7 inclining with respect to the perpendicular. This is because even if the first valve body 209a is used for a long time and the dust collection chamber 207 side has a tendency to bend, the lower end side of the first valve body 209a is not covered by the dust collection chamber 207 due to its own weight. This is to prevent the dust in the dust collecting chamber 207 from being spilled by returning to the outside and coming into contact with the contact portion 303c.

On the other hand, the second valve body 209b is thicker than the first valve body 209a so that the second valve body 209b does not open easily with a weak suction force when used as a stick type vacuum cleaner. It is made of a material such as rubber having high rigidity. Although not shown in FIG. 10, the first valve body 2
Similarly to 09a, the second valve body 209b may be arranged so as to be inclined with respect to the perpendicular. In this case, it is preferable that the lower end side is inclined with respect to the vertical line so that the lower end side is located outside the dust collecting chamber 207 from the upper end side.

As shown in FIG. 10, the filter portion 301 of the filter 208 is arranged so that the fold line of the mountain fold portion 301a is in the same direction as the flow path connecting the inlet opening 253a and the outlet opening 253b. Has been done. This is the dust collection chamber 2 when used as the floor moving type vacuum cleaner shown in FIG.
The dust collected in 07 is also guided to the cleaner body 101 side, but at the same time, the dust attached to the filter 208 is also removed. At this time, since the fold line of the mountain folding part 301a is arranged so as to be in the same direction as the flow path direction connecting the inlet opening 253a and the outlet opening 253b, wind flows along this fold line, The dust adhering to the filter 208 is also guided to the outlet opening 253b along this folding line, and the filter 208
The dust removal performance of can be improved.

Flow direction in the dust collecting chamber 207 and the mountain fold portion 30
It is desirable that the fold line 1a and the fold line direction 1a be arranged substantially parallel to each other, but the invention is not limited thereto. For example, as shown in FIG. 10, the outlet opening 253b may be located higher than the inlet opening 253a.

Here, the center of the inlet opening 253a and the center of the outlet opening 253b are connected by a center line 304. The center line 304 means that the air flowing from the inlet opening 253a flows toward the outlet opening 253b along the direction of the center line 304. The angle formed by the center line 304 and the fold line of the mountain fold portion 301a is α
And The best condition is that α is 0 °, that is, parallel, but it may be set arbitrarily within a range of ± 45 ° in which the flow is not greatly disturbed. Although the fold line of the mountain fold portion 301a has been described in the present embodiment, it goes without saying that the fold line of the valley fold portion 301b is also the same. In addition, the mountain fold portion 301a and the valley fold portion 3
The folding line of 01b does not necessarily have to be a straight line, and may have some distortion. Further, in the present embodiment, the mountain fold portion 301a and the valley fold portion 301
Although the folding line direction of b is arranged substantially parallel to the surface to be cleaned, the invention is not limited to this, and the inlet opening 25
It may be set arbitrarily in consideration of the relationship between 3a and the outlet opening 253b.

Further, as described in the fourth embodiment, when the filter 208 is used as a floor-moving type vacuum cleaner, if air is allowed to flow backward, the dust removal of the filter 208 can be performed more efficiently.

In the present embodiment, since the flow path direction in the dust collection chamber 207 and the folding line of the filter 208 are in the same direction, the dust removal performance of the filter 208 can be improved. (Sixth Embodiment) Next, a sixth embodiment of the present invention will be described with reference to FIGS. 8 and 11 to 14. 8 is a vertical sectional view of the suction body 106, FIG. 11 is an external perspective view of the dust collecting chamber 207, and FIG.
It is the side view seen from the side, FIG. 13 is a perspective view of the filter 208, and FIG. 14 is a top view of a suction body. In addition,
In the present embodiment, the secondary battery 107 is attached to the mouthpiece joint 106b.
Is provided.

As shown in FIG. 8, a dust collection chamber 207 is detachably provided in the suction body 106. This dust collection room 20
7 is configured to be detached from the suction body 106 toward the upper side (the side opposite to the surface to be cleaned) of the suction body 106.

Further, as shown in FIG. 14, when used as a stick type vacuum cleaner, the air 501 sucked from the opening 221 facing the surface to be cleaned is collected in the dust collecting chamber 207,
Air 501a exhausted to the outside through the electric motor 220
Then, after flowing out from the electric blower 220, the circuit board 110a and the electric motor 202 are cooled through the flow path 106c in the lower part of the joint 106b and divided into the air 501b exhausted to the outside. When used as the floor-moving type vacuum cleaner shown in FIG. 5, air 502b is introduced from the outside of the suction body 106 to cool the circuit board 110a and the electric motor 202, and the air 502b is connected to the flow passage 106c below the joint 106b. Through the electric blower room 220a through the electric blower room 220a
The flow path is configured so that the filter 208 is refreshed by merging with the air 502a introduced from the outside.

With the above structure, when used as a stick type vacuum cleaner, the exhaust gas from the electric blower 220 is dispersed into the air 501a and 502b, so that the exhaust flow velocity can be reduced and the dust on the floor can be prevented. You can prevent the rise. Further, the circuit board 11 is reduced while the suction body 106 is downsized.
0a and the electric motor can be cooled. Furthermore, FIG.
Even when it is used as the floor-moving type vacuum cleaner shown in, the circuit board 110a and the electric motor can be cooled without providing a new cooling fan or the like.

The dust collecting chamber 207 has an inlet opening 253a,
An outlet opening 253b located above the inlet opening 253a is formed. When used as the floor-moving type vacuum cleaner shown in FIG. 5, the sucked dust enters through the inlet opening 253a, passes through the inside of the dust collecting chamber 207 and exits through the outlet opening 253b, and inside the cleaner body 101. The dust is collected in the dust collecting chamber 111. The inlet opening 253a is provided in the dust collecting chamber 207 at the upstream side of the flow path of the dust collecting chamber 207, and the upper end portion is directed inward of the dust collecting chamber 207 fixed by the first fixing means 303a. A first valve body 209a to be opened is provided.

Further, the dust collection chamber 2 is provided at the outlet opening 253b.
A second valve body 209b is provided outside the dust collection chamber 207, located downstream of the flow passage 07, and has an upper end portion fixed by the second fixing means 303d to open outward of the dust collection chamber 207. ing.

The first valve body 209a has a dust collecting chamber 2 which has a weak suction force as in the case of being used as a stick type vacuum cleaner.
It is made of a thin material such as rubber having a relatively low rigidity so that it can be easily opened inward. Furthermore, the first
Of the valve body 209a of the lower part of the dust collecting chamber 20 from the upper end side.
It is arranged so as to be located inside 7 inclining with respect to the perpendicular. This is because even if the first valve body 209a is used for a long time and the dust collection chamber 207 side has a tendency to bend, the lower end side of the first valve body 209a is not covered by the dust collection chamber 207 due to its own weight. This is to prevent the dust in the dust collecting chamber 207 from being spilled by returning to the outside and coming into contact with the contact portion 303c.

On the other hand, the second valve body 209b is thicker than the first valve body 209a so that the second valve body 209b does not open easily with a weak suction force when used as a stick type vacuum cleaner. It is made of a material such as rubber having high rigidity. Further, since the upper end portion of the second valve body 209b is bent and fixed by the second fixing means 303d, the second valve body 209b abuts with a stronger force than the first valve body 209a. Since it is pressed against the portion 303e, it is possible to prevent dust from spilling from the dust collection chamber 207. Although not shown in FIG. 10, the first valve body 209a
Similarly to the above, the second valve body 209b may also be arranged so as to be inclined with respect to the perpendicular. In this case, it is preferable that the lower end side is inclined with respect to the vertical line so that the lower end side is located outside the dust collecting chamber 207 from the upper end side.

Here, in order to prevent dust from spilling from the dust collecting chamber 207, the area of the rotating portion of the second valve body 209b is the dust collecting chamber 2
It may be larger than the area of the outlet opening 253b of 07. Further, in the present invention, the dust collection chamber 20 of the suction body 106
No. 7 outlet opening 253b and a flow passage opening 215
Is larger than the area of the rotating portion of the second valve body 209b. Therefore, when used as the floor-moving type vacuum cleaner shown in FIG. 5, due to the suction force of the cleaner body 101 side,
Since the second valve body 209b can rotate, the first valve body 209a attached to the dust collection chamber 207 can also be opened, and the opening 22 facing the surface to be cleaned of the suction body 106 can be opened.
A flow path from 1 to the cleaner body 111 is created. Therefore,
The dust flowing out from the outlet opening 253b of the dust collecting chamber 207 can be conveyed to the cleaner body 101 side through the flow path opening 215 communicating with the outlet opening 253b of the dust collecting chamber 207 of the suction body 106.

Further, as shown in FIG. 11, the dust collecting chamber 207 is provided with a plurality of ribs 260a to 260d in the vicinity of the outlet opening 253b of the dust collecting chamber 207, and even if dust collects in the dust collecting chamber 207. , Outlet opening 25 of the dust collection chamber 207
A space can be created near 3b by the plurality of ribs 260a to 260d. Cotton dust collected in the dust collecting chamber 207 and dust that is easily compressed such as hair are compressed near the outlet opening 253b of the dust collecting chamber 207 and become a large lump of dust and are entangled in the outlet opening 253b. Prevent things. Therefore, the dust accumulated in the dust collecting chamber 207 in the suction body 106, which is used in the stick type vacuum cleaner,
When used as a floor moving type vacuum cleaner shown in FIG.
When being guided to the cleaner body 101 side, it can flow out from the dust collection chamber 207 outlet opening 253b in the suction body 106, and can be conveyed into the cleaner body. In addition,
If the ribs 260a to 260d have an R shape toward the outlet opening 253b of the dust collecting chamber 207, the rib 2
It becomes difficult for dust to be caught from 60a to 260d.

A filter 208 is provided in the dust collecting chamber 207, as shown in FIG. The filter 208 includes a filter portion 301 that filters dust, a sealing member 302 that covers the outer periphery of the filter portion 301, and that keeps airtightness with the dust collecting chamber 207 when the filter 208 is attached to the dust collecting chamber 207. The filter frame 305 is arranged so as to cover the outer peripheral portion of the portion 301 in the mountain height direction. Further, the filter portion 301 is formed in a mountain fold (corrugated) shape, and the mountain fold portion 301 a protruding inward from the outside of the dust collection chamber 207 and the dust collection chamber 207.
Has a valley fold 301b that is recessed from the outside to the inside. In this embodiment, the area of the filter can be increased by providing the mountain-fold (corrugated) filter, and the filter can be prevented from being clogged in a short time. Further, since the filter frame 305 has a shape that is substantially along the inner surface of the dust collection chamber 207, the dust is removed by the filter portion 3
01 and the inner wall of the dust collecting chamber 207 can be prevented from being entangled.

Therefore, when used as the floor-moving type cleaner shown in FIG. 5, when the dust collected in the dust collecting chamber 207 is also guided to the cleaner body 101 side, the suction body 106 is introduced.
It means that the dust adhering to the filter 208 can be easily removed by the air flowing in from the electric blower 220 side inside, and the dust removing performance for removing the dust adhering to the filter 208 can be improved.

The filter 208 attached to the dust collecting chamber 207 arranged in the suction body 106 is formed as an integral part by welding or adhering the filter portion 301 to the soft sealing member 302 such as rubber, and is integrated with the dust collecting chamber 207. It is arranged so as to be in close contact with the suction body 106 and is kept airtight. At this time, in order to maintain the peak shape of the filter portion 301, both sides of the peak are welded or adhered to a plastic material such as ABS, and the plastic material and the dust collecting chamber 2
07 and the sealing member 302 that makes the suction body 106 airtight may be integrally formed by welding or adhesion. Further, the rib 261a and the rib 26 are provided in the dust collecting chamber 207.
1b is provided with a protrusion and the filter 208 is attached to the dust collection chamber 2
07 If you can decide the position when attached,
Further, the dust collecting chamber 207 and the suction body 106 can be kept airtight.

In each of the embodiments of the present invention described above, the electric blower 112 on the cleaner body 101 side is driven by an AC power source. However, the cleaner body 101 has a built-in rechargeable secondary battery. Alternatively, the electric blower 112 may be driven by a DC power source using the secondary battery as a power source. Further, in each embodiment of the present invention, the hand switch 10
Although the operation information from 4 is transmitted from the wireless signal transmitting unit 108 to the wireless signal receiving unit 109 on the cleaner body 101 side by a wireless signal, the hand operation unit 103 is connected to the cleaner body 101 inside the hose 102. Signal line (power line)
The handheld operation unit 103 and the cleaner body 1
01 may be electrically connected.

[0065]

As described above, according to the present invention, there is provided an electric blower and a dust collecting chamber arranged in the suction body, and a mountain fold is formed between the dust collecting chamber and the electric blower. Since the filter is provided, the effective area of the filter is increased, and it is possible to prevent the filter from being clogged in a short time.

Further, according to the present invention, since the flow path direction in the dust collecting chamber and the folding line of the filter are in the same direction, the dust removing performance of the filter can be improved.

[Brief description of drawings]

FIG. 1 is a top view of a suction body according to an embodiment of the present invention.

FIG. 2 is an external view of the electric vacuum cleaner according to the embodiment of the present invention.

FIG. 3 is a top view of a suction body according to an embodiment of the present invention.

FIG. 4 is a top view of a suction body according to an embodiment of the present invention.

FIG. 5 is an external view of the electric vacuum cleaner according to the embodiment of the present invention.

FIG. 6 is a view of a dust collecting chamber provided in the suction body according to the embodiment of the present invention.

FIG. 7 is a top view of the mouthpiece according to the embodiment of the present invention.

FIG. 8 is a vertical cross-sectional view of the mouthpiece 106 according to the embodiment of the present invention.

FIG. 9 is an external perspective view of the dust collection chamber 207 and the filter 208 according to the embodiment of the present invention.

FIG. 10 is a dust collection chamber 207 according to an embodiment of the present invention.
FIG.

FIG. 11 is a dust collection chamber 207 according to an embodiment of the present invention.
FIG.

FIG. 12 is a dust collection chamber 207 according to an embodiment of the present invention.
It is the side view which looked at from the filter 208 side.

FIG. 13 is a filter 20 according to an embodiment of the present invention.
9 is a perspective view of FIG.

FIG. 14 is a top view of the mouthpiece according to the embodiment of the present invention.

[Explanation of symbols]

101 ... Vacuum cleaner main body, 102 ... Hose body, 103 ... Handle part, 104 ... Switch, 105 ... Extension tube, 106 ...
Suction body, 107 ... Rechargeable battery, 202 ... Electric motor, 206 ... Blower, 207 ... Dust collection chamber, 208 ... Filter, 260a ...
Rib, 260b ... Rib, 260c ... Rib, 260d ... Rib, 301 ... Filter section, 301a ... Mountain fold section, 301
b ... Valley fold portion, 302 ... Seal member, 305 ... Filter frame.

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Susumu Sato             1-1-1 Higashitaga-cho, Hitachi City, Ibaraki Prefecture             Inside the ceremony company Hitachi Taga Electronics (72) Inventor Naofumi Kitagawa             1-1-1 Higashitaga-cho, Hitachi City, Ibaraki Prefecture             Inside the ceremony company Hitachi Taga Electronics (72) Inventor Taiji Tajima             502 Kintatemachi, Tsuchiura City, Ibaraki Japan             Tate Seisakusho Mechanical Research Center F-term (reference) 3B062 AB13

Claims (7)

[Claims] 1. A suction member having an opening facing a surface to be cleaned, an electric blower and a dust collecting chamber arranged in the suction member, and a filter provided between the dust collecting chamber and the electric blower. An electric vacuum cleaner comprising: a filter having a mountain fold shape. 2. The inlet opening for inflowing dust and the outlet opening for outflow of dust are provided in the dust collecting chamber, and the folding line direction of the mountain fold of the filter is defined as the inlet opening and the inlet opening. An electric vacuum cleaner, wherein the electric vacuum cleaner is arranged so as to be in the same direction as a flow path connecting the outlet opening. 3. The fold line direction of the mountain fold of the filter according to claim 2, wherein the center of the inlet opening and the center of the outlet opening are ± 4 with respect to the center line.
An electric vacuum cleaner characterized by being set within a range of 5 °. 4. A cleaner body having an electric blower and a dust collecting chamber, an opening provided to face the surface to be cleaned, and the dust collecting chamber communicating with the cleaner body via an extension pipe. An electric blower and a dust collection chamber are provided on the suction body and the suction body side, and in the electric cleaner that can be used by separating the suction body side from the cleaner body, dust is collected in the dust collection chamber provided on the suction body. An outlet opening for outflow is provided, and compared with the area of the outlet opening, the cross-sectional area of the opening of the suction body communicating with the outlet opening through which dust flows into the dust collecting chamber provided in the suction body is increased. A characteristic vacuum cleaner. 5. The electric appliance according to claim 4, wherein a rib inclined toward the opening is provided in the dust collecting chamber near the outlet opening where dust in the dust collecting chamber on the suction body side flows out. Vacuum cleaner. 6. The valve body according to claim 4, wherein a valve body that opens outward of the dust collecting chamber is provided at an outlet opening in the dust collecting chamber on the suction body side where dust flows out, and the valve body is attached by bending. An electric vacuum cleaner characterized by that. 7. A filter having a suction body having an opening facing a surface to be cleaned, an electric blower and a dust collection chamber disposed in the suction body, and the filter being provided between the dust collection chamber and the electric blower. An electric vacuum cleaner comprising: a filter, wherein the filter is mountain-folded, and an outer peripheral portion of the filter in a mountain height direction is covered with a frame.