JP4236621B2 - Electric vacuum cleaner - Google Patents

Description

  The present invention relates to a vacuum cleaner provided with a dust collector that can collect dust contained in air by suction force of an electric blower or the like.

  A general vacuum cleaner includes a main body equipped with an electric blower, a suction tool that is moved along the floor surface, and a connection hose and a connection pipe that connect the suction tool to the main body. A disposable bag-shaped dust collection bag is mounted (see, for example, Patent Document 1).

  However, this type of vacuum cleaner is not economical because it uses a disposable dust collection bag, and has a problem that the suction force decreases as dust accumulates and the dust collection efficiency deteriorates. In order to solve these problems, an electric vacuum cleaner equipped with a cyclone type dust collector capable of collecting dust by centrifugally separating dust contained in the air by swirling the air sucked from the suction port. It is known (for example, see Patent Document 2).

And recently, it is a cyclone type that continues with powerful power for everyday cleaning, when a large amount of garbage comes out at the end of the year, pollen season, when sucking insects etc., it is troublesome to throw away garbage busy with childcare and work In such cases, there is a need for a dust bag and a vacuum cleaner that can be used in different ways depending on the lifestyle.
Japanese Utility Model Publication No. 5-20279 JP 2003-339593 A

The present invention has been made under such a background, and it is an object of the present invention to provide an electric vacuum cleaner capable of properly using a dust bag and a cyclone dust collector with a simple configuration.

A first means for solving the above-described problem is that an electric blower , a dust collection chamber for collecting dust and a suction port to which a hose is connected are connected in the main body, and a cover for opening and closing the dust collection chamber is provided. A vacuum cleaner equipped with a hollow casing capable of swirling air sucked from the suction port, and air discharged from an exhaust port formed on the rear surface of the casing through the air. A cyclone-type dust collector having a filter that captures dust contained therein, and having a filter holding member that surrounds and holds the outer periphery of the filter; and a dust collector that collects dust contained in air sucked from the suction port An opening communicating with the suction port of the main body is formed in the front surface of the dust collection chamber, and the opening is formed so as to incline forward as it goes upward, and at the periphery of the opening. Packing A dust cup seal that forms a cover seal portion that seals the cover and the upper opening of the dust collection chamber and seals the edge of the filter holding member of the cyclone dust collector and the rear surface of the dust collection chamber A cyclone type dust collecting device and a dust bag can be selectively attached to the dust collecting chamber, and when the cyclone type dust collecting device is attached to the dust collecting chamber, the cyclone type The inlet peripheral edge of the dust collector is sealed by the packing, the edge of the filter holding member of the cyclone dust collector and the rear surface of the dust chamber are sealed by a dust cup seal, and the dust bag is collected. The mounting portion of the dust bag is sealed by the packing and is sealed by the cover seal portion when mounted in the dust chamber .

According to the first aspect of the present invention, the cyclone type dust collecting device or the dust collecting bag can be selectively attached and used separately, so that convenience is improved. When the cyclone type dust collector is mounted, the cyclone type dust collector is sealed by the packing and the dust cup seal portion, and when the dust bag is mounted, the cyclone type dust collector is sealed by the cover seal portion.

(First embodiment)
The first embodiment of the present invention will be described with reference to FIGS. 1-8.

  1 is a vacuum cleaner, and the vacuum cleaner 1 includes a main body 3 having an electric blower 2 and a connection hose 5 having one end inserted into a suction port 4 formed at a front end portion of the main body 3. ing. A cylindrical extension pipe (not shown) is detachably connected to the other end of the connection hose 5, and a floor suction tool (not shown) can be detachably connected to the extension pipe. It has become.

  Reference numeral 6 denotes a plurality of wheels provided at the lower portion of the main body 3 so that the main body 3 can be moved along the floor surface.

  7 is a dust collection chamber provided in front of the electric blower 2. In the dust collection chamber 7, the air sucked from the suction port 4 is swirled so that the dust contained in the air is centrifuged. A cyclone type dust collecting device 8 that separates and collects dust or a dust collecting bag 9 that collects dust contained in the air sucked from the suction port 4 can be mounted. In addition, a substantially circular opening communicating with the suction port 4 is formed in the front surface of the dust collection chamber 7, and the opening 10 is slightly upward with respect to the vertical plane, that is, as it goes upward. It is formed to incline forward. A substantially annular packing 11 is attached to the peripheral edge of the opening 10.

As shown in FIG. 2, the cyclone type dust collector 8 is made of resin, and is discharged from a hollow casing 12 that can swirl air, and an exhaust port 13 formed on the rear surface of the casing 12. A filter 14 for allowing air to pass therethrough and capturing dust contained in the air, and a filter holding member 15 surrounding and holding the outer periphery of the filter 14 are provided. In the casing 12, a swirling channel 16 is defined by a partition wall, and a terminal portion of the swirling channel 16 communicates with a dust collecting portion 17 that spreads upstream of the exhaust port 13.

  An inlet pipe 18 projects from the front surface of the casing 12, and a substantially rectangular flat plate mounting portion 20 is integrally formed at the inlet 19 of the inlet pipe 18. In the mounting portion 20, a mounting portion 22 (mounting sheet) having the same shape is also provided at the inlet 21 of the dust bag 9. More specifically, the length A of the mounting portion 20 protruding from the upper end of the inlet 19 of the cyclonic dust collector 8, the length B of the mounting portion 20 protruding from the lower end of the inlet 19, and the collector The length C of the mounting portion 22 protruding from the upper end of the inlet 21 of the dust bag 9 and the length D of the mounting portion 22 protruding from the lower end of the inlet 21 are projected to substantially the same length and thick. The thickness is almost the same.

  Reference numeral 23 is attached to the upper part of the front end of the dust collecting chamber 7 so as to be pivotable about a pivot shaft 24 extending in the left-right direction, and is a latch for fixing the cyclonic dust collector 8 or the dust bag 9. Part. The locking portion 23 is formed on the base 25 extending in the left-right direction and the rear of the base 25, and the upper end edge of the mounting portion 20 of the cyclonic dust collector 9 or the mounting portion 22 of the dust bag 9. The claw portion 26 for hooking the upper edge and the operation portion 27 protruding from the base portion 25 are integrally formed, and are urged clockwise in FIG. 3 by an elastic member such as a spring. ing.

  28 is a positioning rib formed at the front end portion of the bottom surface of the dust collecting chamber 7, and the positioning rib 28 is mounted when the cyclone type dust collecting device 8 or the dust collecting bag 9 is mounted. It is formed so that it can prevent that the lower end edge of the parts 20 and 22 shifts to the back side.

  A packing 29 is attached to the entire periphery of the upper opening of the dust collection chamber 7 and the rear surface of the dust collection chamber 7. As shown in FIGS. 4 and 5, the packing 29 includes a cover seal portion 29 a that seals the upper opening of the dust collection chamber 7 and a cover 30 described later, a rear surface of the dust collection chamber 7, and the cyclone type dust collection. A dust cup seal portion 29 b that seals the edge of the filter holding member 15 of the device 8 is integrally formed. In the conventional configuration, the cover seal portion 29a and the dust cup seal portion 29b are separate, that is, two parts. In this embodiment, the cover seal part 29a and the dust cup seal part 29b are composed of one part. Workability at the time can be improved.

  A cover 30 covers the dust collection chamber 7, and a rear end of the cover 30 is rotatably attached to the main body 3, and the dust collection chamber is rotated by rotating the cover 30. Can be opened and closed. Three ribs including a positioning rib 31, a front seal rib 32, and a contact rib 33 extending in the left-right direction with respect to the main body 3 are formed on the front side of the back surface of the cover 30, and the main body 3 is formed on the rear side. A rear seal rib 34 extending in the left-right direction is formed.

  The positioning rib 31 is hooked on a protrusion 35 formed above the suction port 4 in a state where the cover 30 is closed, and positions the cover 30.

  The front seal rib 32 presses the cover seal portion 29a of the packing 29 in a state where the cover 30 is closed, so that the gap between the upper opening of the dust collection chamber 7 and the cover 30 can be sealed.

  As shown in FIG. 3, the abutment rib 33 is an operation portion of the locking portion 23 in a state where neither the cyclonic dust collector 8 nor the dust bag 9 is attached to the dust collection chamber 7. 27, the cover 30 cannot be closed. Therefore, it is possible to prevent the electric blower 2 from being started in a state where neither the cyclonic dust collector 8 nor the dust bag 9 is mounted in the dust collection chamber 7.

  The rear seal rib 34 presses the dust cup seal portion 29b of the packing 29 in a state where the cyclone type dust collector 8 is mounted in the dust collection chamber 7, and the rear surface of the dust collection chamber 7 and the cyclone type The edge of the filter holding member 15 of the dust collector 8 can be sealed.

  In the above configuration, when the cyclonic dust collector 8 is mounted in the dust collection chamber 7, first, as shown in FIG. The cyclone type dust collecting device 8 is inserted into the dust collecting chamber 7 through the upper surface opening, and the lower end edge of the mounting portion 20 is brought into contact with the front side of the positioning rib 28. Thereafter, the force applied to the operation unit 27 is released. When the force is released, the locking portion 23 rotates clockwise, so that the claw portion 26 presses the upper edge of the mounting portion 20. As a result, the mounting portion 20 is pressed against the packing 11 by the forward force received from the claw portion 26, and the peripheral edge portion of the inlet 19 on the front surface of the mounting portion 20 is pressed against the packing 11. The gap between the opening 10 and the inlet 19 is sealed.

  When the mounting operation to the dust collecting chamber 7 is finished, the cover 30 is closed, and the vacuum cleaner 1 is operated (the electric blower 2 is driven) with the cyclone dust collecting device 8 mounted. 12, dust contained in the air flowing from the inlet 19 can be separated by centrifugal force and collected by the dust collecting unit 17, and the air from which the dust is separated is exhausted via the filter 14. It can guide to the mouth 13 side.

  Next, when the dust bag 9 is attached to the dust collection chamber 7, as shown in FIG. 7, as in the cyclonic dust collector 8, first, the operation unit 27 is pulled forward, The locking portion 23 is rotated counterclockwise, the dust bag 9 is inserted into the dust collecting chamber 7 through the upper surface opening, and the lower end edge of the mounting portion 22 is located on the front side of the positioning rib 28. Then, the force applied to the operation unit 27 is released. When the force is released, the locking portion 23 rotates clockwise, so that the claw portion 26 presses the upper edge of the mounting portion 22. As a result, the mounting portion 22 is pressed against the packing 11 by the forward force received from the claw portion 26, and the peripheral edge portion of the inlet 21 on the front surface of the mounting portion 22 is pressed against the packing 11. The gap between the opening 10 and the inlet 21 is sealed.

  When the mounting operation to the dust collecting chamber 7 is finished, the cover 30 is closed as shown in FIG. 8, and the electric vacuum cleaner 1 is operated (the electric blower 2 is driven) with the dust collecting bag 9 mounted. Then, the air sucked from the suction port 4 is guided into the dust bag 9 from the opening 10 through the inlet 21. And when passing the dust bag 9, the dust contained in the air can be captured.

  The vacuum cleaner 1 includes a cyclonic dust collecting device 8 for separating and capturing dust contained in the air by centrifugal force by swirling the air sucked from the suction port 4, and a disposable Since the dust bag 9 that can be used can be selectively mounted with a simple configuration and used properly, the convenience of the user can be improved.

  Further, since the mounting portion 20 of the cyclonic dust collector 8 and the mounting portion 22 of the dust bag 9 have the same shape (projection length and thickness from the inlets 19 and 21 are substantially the same), Since the stopper 23 and the positioning rib 28 can be used in common, design management can be reduced.

  Moreover, in the state where neither the cyclonic dust collector 8 nor the dust bag 9 is attached, the operation of the electric vacuum cleaner 1 can be prevented from starting, so that convenience can be improved. .

It is a sectional side view of the vacuum cleaner which shows embodiment of this invention. It is a sectional side view of the cyclone type dust collector with which the vacuum cleaner is mounted | worn. It is a sectional side view showing the state where neither the cyclone type dust collector nor the dust bag is attached to the electric vacuum cleaner. It is a side view of the packing with which the same vacuum cleaner is mounted | worn. It is a front view of the packing with which the vacuum cleaner is mounted. It is a sectional side view which shows the state which mounts | wears with the cyclone type dust collector in the same vacuum cleaner. It is a sectional side view which shows the state which attaches a dust collection bag to the same vacuum cleaner. It is side sectional drawing which shows the state which mounted | wore the dust cleaner with the vacuum cleaner.

Explanation of symbols

DESCRIPTION OF SYMBOLS 3 Main body 2 Electric blower 7 Dust collection chamber 30 Cover 23 Locking part 4 Suction port 8 Cyclone type dust collector 9 Dust collection bag 20 Mounting part (Cyclone type dust collector)
22 Wearing part (dust bag)

Claims (1)

An electric blower having a suction port connected to an electric blower , a dust collection chamber for collecting dust and a hose in the body, and a cover for opening and closing the dust collection chamber,
A hollow casing capable of swirling the air sucked from the suction port, and a filter that captures dust contained in the air through the air discharged from the exhaust port formed on the rear surface of the casing. A cyclone type dust collecting device including a filter holding member that surrounds and holds the outer periphery of the filter, and a dust collection bag for collecting dust contained in the air sucked from the suction port,
An opening communicating with the suction port of the main body is formed on the front surface of the dust collecting chamber, the opening is formed so as to tilt forward as it goes upward, and a packing is attached to a peripheral portion of the opening,
Forming a cover seal portion that seals the cover and the upper opening of the dust collection chamber, and forming a dust cup seal portion that seals the edge of the filter holding member of the cyclone dust collector;
The cyclone type dust collector and the dust bag are configured to be selectively attached to the dust collection chamber,
When the cyclone dust collector is mounted in the dust chamber, the peripheral edge of the inlet of the cyclone dust collector is sealed with the packing, and the edge of the filter holding member of the cyclone dust collector and the dust chamber The rear surface is sealed with a dust cup seal,
An electric vacuum cleaner configured to seal the mounting portion of the dust bag with the packing and the cover seal portion when the dust bag is mounted in the dust chamber .

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