JP4453488B2 - Vacuum cleaner - Google Patents

Description

  The present invention relates to a vacuum cleaner provided with a plurality of filters.

As a conventional electric vacuum cleaner of this type, there is one provided with a plurality of filters having different shapes such as a substantially conical filter and a flat filter (see, for example, Patent Document 1).
Japanese Patent No. 3461824

  The filter built in the vacuum cleaner will become clogged if it has been used for a long time, so it needs to be cleaned as appropriate, but the configuration of the above conventional vacuum cleaner has various filter shapes. Since it is complicated and divided into multiple locations, it was very difficult to clean the filter and there were problems such as oversight.

  This invention solves the said conventional subject, and it aims at providing the vacuum cleaner which simplified the cleaning of the filter.

In order to solve the conventional problems, an electric vacuum cleaner according to the present invention includes an electric blower, a centrifugal separation chamber that separates fine dust by centrifugal separation, and coarse dust that is disposed upstream of the centrifugal separation chamber. A coarse dust chamber, a fine dust chamber arranged on the downstream side of the centrifuge chamber and collecting fine dust, a substantially flat centrifuge chamber filter provided at a position corresponding to the centrifuge chamber , A filter for the dust chamber, and a filter for the dust chamber provided at a position corresponding to the dust chamber, and a filter for the dust chamber provided at a position corresponding to the dust chamber. The filter for the coarse dust chamber and the filter for the fine dust chamber are provided integrally and substantially on the same plane, and the centrifugal chamber is configured such that the suction air flowing into the centrifugal chamber is separated by the centrifugal separation. in the direction along the surface of the chamber filter, and the centrifugal separation chamber One that is configured so as to flow from the line direction, cleaning the plurality of filters, maintenance is easy.

  The vacuum cleaner of the present invention is very easy to clean and maintain a plurality of filters.

The first invention includes an electric blower, a centrifugal separation chamber that separates fine dust by centrifugation, a coarse dust chamber that is disposed upstream of the centrifugal separation chamber and collects coarse dust, and a downstream of the centrifugal separation chamber. and fine dust chamber for collecting fine dust is arranged on the side, a filter for substantially planar centrifuge chamber together with the location corresponding to the centrifugal separation chamber, provided at a position corresponding to the coarse dust chamber A filter for the dust chamber, and a filter for the dust chamber provided at a position corresponding to the fine dust chamber, the filter for the centrifugal chamber, the filter for the dust chamber, and the fine dust chamber filter is provided on the integrally and substantially on the same plane, the centrifugal separation chamber, in the direction suction air flowing into the centrifuge chamber along the surface of the filter for the centrifugal separation chamber, and, It is configured to flow from the tangential direction of the centrifugal separation chamber Because, cleaning of multiple filters, maintenance is easy. In addition, the centrifugal separation of the dust is effectively performed, and the dust is difficult to adhere to the filter for the centrifugal separation chamber, so that it is possible to suppress a decrease in air pressure loss due to the clogging of the filter. Furthermore, since the coarse dust is collected in advance in the coarse dust chamber, the burden for centrifugal separation of the dust in the centrifugal separation chamber is reduced, and the fine dust separated there is collected in the fine dust chamber. It is suppressed that fine dust remains in the centrifuge chamber, and high centrifuge performance can be maintained over a long period of time.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the present invention is not limited to the embodiments.

(Embodiment 1)
The vacuum cleaner in the 1st Embodiment of this invention is demonstrated using FIGS.

  FIG. 1 is an overall perspective view of the electric vacuum cleaner according to the present embodiment, FIG. 2 is a top view of the electric vacuum cleaner, and FIG. 3 is a cross-sectional view of the electric vacuum cleaner.

  In FIG. 1, reference numeral 1 denotes a vacuum cleaner main body, an electric blower chamber 3 having an electric blower 2 built in at the rear, and a dust box storage portion 5 for storing a dust box unit 4 that is detachable and separates and collects dust at the front. A pair of traveling wheels 6 is rotatably attached to both sides of the lower rear part, and a traveling caster 7 is also attached to the bottom front part. A suction port 10 to which a connection pipe 9 provided at one end of the hose 8 is detachably connected is provided at the front portion of the cleaner body 1.

  The other end of the hose 8 is provided with a distal end pipe 12 having a handle that is gripped during cleaning. Reference numeral 13 denotes an extendable or jointable extension pipe, the downstream end of which is detachably connected to the tip pipe 12, and the other end is a rotary brush 14 for dust lifting, and the rotary brush 14 is driven to rotate. The suction tool 16 having a built-in motor 15 is detachably connected.

  Reference numeral 17 denotes an opening provided on the side surface of the vacuum cleaner main body 1 so that the outer side surface formed of a transparent material of the dust box unit 4 attached to the dust box storage unit 5 can be seen from the outside.

  18 is a bumper formed of an elastic material and extending from the front part to both sides of the cleaner body 1 so that it does not damage furniture, pillars, etc. when the cleaner body 1 travels. In addition, a portion facing the opening 17 provided in the cleaner body 1 is hollowed out as shown in the figure.

  Reference numeral 19 denotes a main body handle that is used when the vacuum cleaner body 1 is carried, and is rotatably attached to the upper portion of the cleaner body 1 so that the center of rotation is positioned on a vertical line passing through the center of gravity of the cleaner body 1. It has been.

  A box handle 20 for carrying the dust box unit 4 has an upper end pivotally supported by the dust box unit 4 and its front end is normally housed in the dust box unit 4 as shown in FIG. When the unit 4 is carried or removed from the dust box storage part 5 of the cleaner body 1, if the front part is lifted, the front end pops upward and the box handle 20 can be gripped.

  21 is a buckle that holds the front end of the dust box unit 4 when the dust box unit 4 is housed in the dust box housing part 5 of the cleaner body 1, and is urged rearward by a buckle spring 21a.

  In FIG. 3, the outer body of the cleaner body 1 includes a lower body 1 a that forms a lower portion and a cord reel housing portion 23 that houses a cord reel 22 at the rear, and an upper body that has an electric blower chamber 3 formed at the rear. 1b, and the bottom of the electric blower chamber 3 is covered with the lower body 1a. Reference numeral 24 denotes a cord reel cover that covers the cord reel storage portion 23 formed in the lower body 1a. A shaft support portion 25 provided on each of the cord reel cover 24 and the lower body 1a supports the cord reel 22 so as to be rotatable. Has been.

  The cord reel 22 includes a drum portion 22b around which a power cord 32 is wound and a flange portion 22a on the top and bottom, and a spring material 22c that urges the drum portion 22b in a direction in which the power cord 32 is wound.

  Reference numeral 26 denotes a rewind button that is operated when the power cord 32 drawn out against the urging force of the spring material 22 c built in the cord reel 22 is rewound into the cord reel 22. By pushing 26 downward, the rotation prevention of the cord reel 22 by a brake roller (not shown) is released, and the cord reel 22 winds up the power cord 32 by the urging force of the spring material 22c.

  The front part of the electric blower 2 is supported in the electric blower chamber 3 by a support front 27 made of an elastic material, and the rear part is a post support 28 made of an elastic material. A partition wall 29 divides the electric blower chamber 3 and the dust box storage 5, and a lattice-shaped partition opening 30 that communicates with the suction opening 2 a of the electric blower 2 is provided at substantially the center. It is covered with a tertiary filter 31 from the storage section 5 side.

  FIG. 4 is a perspective view when the dust box unit 4 is removed from the cleaner body 1. A packing 37 is provided at the rear of the suction port 10, and a power cord 32 is pulled out at the lower rear of the dust box storage 5. A repelling roller 33 (rotating body) that rotates in conjunction with the repellent and repels a dust removing plate 57 described later is provided. Reference numeral 39 denotes a cover that covers the periphery of the flip roller 33, and can be easily removed by removing the cover 39 when hair or the like wraps around the flip roller 33.

  FIG. 5 shows a configuration for transmitting the rotational force from the operation of pulling out the power cord 32 to the flip roller 33. The teeth 22d are arranged in an annular shape on the outer peripheral surface of one flange 22a of the cord reel 11, and the flip roller 33 The gear A35 is provided at the end of the shaft A34 to which the shaft is fixed, and a plurality of gear groups 36 are interposed between the teeth 22d and the gear A35. When the flange 22a of the cord reel 11 rotates in accordance with the pulling-out operation of the power cord 32, The rotational force is transmitted in the order of the teeth 22d, the gear group 36, the gear A35, and the shaft A34, so that the flip roller 33 rotates.

  The flip roller 33 is formed by a flip piece 33a and a flange 33b formed so as to sandwich the flip piece 33a.

  Next, the configuration of the dust box unit 4 will be described with reference to FIGS.

  In the figure, the dust box unit 4 includes a dust box body 40 and a filter unit 41 that is detachably attached to the rear opening of the dust box body 40.

  First, a configuration for collecting dust sucked together with air from the suction tool 16 will be described. When the dust box unit 4 is attached to the front portion of the dust box main body 40 in the dust box housing portion 5 of the cleaner body 1, the suction port that is in airtight pressure contact with and communicates with the packing 37 provided behind the suction port 10 of the cleaner body 1. A 42 and a buckle recess 52 in which the buckle 21 engages are provided.

  The dust box main body 40 further communicates directly with the suction port A42 and accommodates coarse dust, and communicates with the coarse dust chamber 43 through the communication port A44, and centrifuges fine dust contained in the suction air. A centrifuge chamber 45 that separates, a fine dust chamber 47 that collects fine dust falling from a communication port B46 provided in a part of the peripheral wall of the centrifuge chamber 45, and the coarse dust chamber 43 and the fine dust chamber 47, respectively. And a lid 48 that covers the openings 43b and 47b and has a rear end pivotally supported by the dust box body 40 so as to be rotatable. The lid 48 is biased in the opening direction by a coil spring 49, and is normally held in a closed state by a locking piece 50 provided on the dust box body 40, and the front of the box handle 20 is closed. When the release button 51 provided on the portion is pressed, the locking piece 50 moves outward through a connecting mechanism (not shown) connected thereto, and the lid 48 is opened by the biasing force of the coil spring 49. ing.

  As shown in FIG. 6C, the front cross-sectional shape of the centrifuge chamber 45 is formed in a D-cut shape with a flat top surface. This is because the surface of the front part of the dust box unit 4 that forms a part of the outline of the vacuum cleaner main body 1 is shown low, and variations in design are widened. Further, a cylindrical rib 45c is extended on the fine dust chamber 47 side of the communication port B46 so that fine dust flowing into the fine dust chamber 47 does not flow back into the centrifugal separation chamber 45.

  The outer portion of the dust box body 40 forming the coarse dust chamber 43 and the fine dust chamber 47 is formed of a translucent material so that the amount of dust accumulated from the outside can be seen.

  On the rear side of the dust box main body 40, a brush storage portion 40a for storing the dust box unit 4 and a cleaning brush 53 for cleaning dust adhering to the components is provided.

  The filter unit 41 includes a frame body 54, a secondary filter 55 that is folded in a pleat and is provided in the frame body 54 with the pleats in the vertical direction, and is formed inside the frame body 54 in a bridging manner. The rib body 56 that holds the frame in the direction perpendicular to the crease direction, and a metal material rich in elasticity such as a steel plate, the upper part is the frame body 54 so that the lower part is pressed against the frame body 54 by its own elastic force. And a dust removing plate 57 attached to the top of the. A lip 58 is integrally or integrally formed at the downstream end of the frame body 54 of the filter unit 41 over the entire circumference. When the dust box unit 4 is attached to the dust box storage portion 5, the lip 58 is The vacuum cleaner main body 1 is pressed against the surface of the partition wall 29 on the dust box storage portion 5 side so that outside air is not sucked when the electric blower 2 is operated.

  The front surface 59 of the filter unit 41 covers the upstream side of the secondary filter 55, and when the filter unit 41 is mounted on the dust box body 40, the rear openings of the coarse dust chamber 43, the centrifugal separation chamber 45, and the fine dust chamber 47, respectively. The parts 43a, 45a and 47a are covered in an airtight manner. Furthermore, an opening A60, an opening B61, and an opening C62 are provided on the front surface 59 of the filter unit 41 at positions corresponding to the rear openings 43a, 45a, and 47a, and the openings A60, B61, and C62 are provided in the openings A60, B61, and C62. Are provided with primary filters 60a, 61a, 62a to prevent the entry of coarse dust or fine dust into the filter unit 41.

  A projecting piece 57a extends from the lower end of the dust removing plate 57, and is provided in the cleaner body 1 when the dust box unit 4 is attached to the dust box storage 5 as shown in the cross-sectional views of the main part in FIGS. When the power cord 32 is pulled out in this state, the flipping roller 33 rotates in conjunction with the pulling operation, and the flipping piece 33a formed in a mountain shape is dust-removed. When the protruding piece 57a of the dust removing plate 57 is moved rearward against the elastic force of the plate 57 and the protruding piece 57a gets over the flipping piece 33a (see FIG. 12), the original left direction is caused by the elastic force of the dust removing plate 57. I will try to get back to it. At this time, a part of the dust removing plate 57 hits the tip of the rib body 56 and a strong impact is applied to the rib body 56, thereby applying strong vibration to the secondary filter 55, and fine dust attached to the secondary filter 55 is shaken. The filtration performance of the secondary filter 55 is restored.

  The operation and action of the above configuration are as follows.

  At the start of use of the vacuum cleaner, when the power cord 32 is pulled out from the vacuum cleaner main body 1, the flange 22a of the cord reel 22 rotates in conjunction with the pulling operation, and the rotational force is generated by the gear group 36 and the gear A35. As a result, the flip roller 33 rotates. When the flipping roller 33 rotates, the flipping piece 33a flips the protruding piece 57a provided on the dust removing plate 57, and a strong impact is applied to the rib body 56 of the filter unit 41, which adheres to the secondary filter 55 during the previous cleaning. The fine dust thus filtered out is recovered, and the filtration capacity of the secondary filter 55 is restored.

  Next, when the power cord 32 is inserted into a wall outlet (not shown) and the operation of the vacuum cleaner is started, the suction force by the electric blower 2 is changed to the opening A60, the opening B61, the opening C62, the primary filters 60a, 61a, After passing through 62 a, the dust chamber 43, the centrifuge chamber 45, the fine dust chamber 47, the hose 8, the extension pipe 13, and the suction tool 16 are reached. Then, the air containing dust sucked from the suction tool 16 passes through the suction port 10 of the cleaner body 1 and enters the dust chamber 43 straight from the suction port A42 of the dust box body 40, hits the primary filter 60a, and is trapped there. Collected and accumulated.

  Since the suction force by the electric blower 2 also acts on the centrifugal separation chamber 45, a part of the air from which the coarse dust has been removed in the coarse dust chamber 43 passes through the communication port A44 located on the suction port A42 side. And flows into the centrifuge chamber 45. Here, the air flows into the centrifugal separation chamber 45 along the surface of the primary filter 61a and from the tangential direction thereof, so that the centrifugal separation of the dust is performed effectively and the dust is difficult to adhere to the primary filter 61a. Since clogging due to dust is difficult to occur, it is possible to suppress a decrease in air pressure loss in the primary filter 61a.

  The fine dust centrifuged in the centrifuge chamber 45 falls into the fine dust chamber 47 from the communication port B46 provided in a part of the peripheral wall of the centrifuge chamber 45. On the other hand, the air containing fine dust that has passed through the primary filters 60a, 61a, 62a flows into the pleated secondary filter 55, where the dust is captured. As described above, the dust trapped by the secondary filter 55 is shaken off by the dust removing plate 57 when the power cord 32 is pulled out in order to use the electric vacuum cleaner next time.

  Moreover, as shown in FIG. 10, since the primary filters 60a, 61a, and 62a are provided on the same surface, it is very easy to clean them, there is no cleaning omission, and it is very easy to use. Is. In the above-described embodiment, the primary filters 60a, 61a, and 62a are provided flush with each other, but there are some steps, specifically, steps up to about 6 mm between the primary filters 60a, 61a, and 62a. Or even if it exists between those and the surface of the front surface 59, it does not change that cleaning is easy.

  Further, since the suction air flows in from the tangential direction along the surface of the primary filter 61a for the centrifuge chamber 45, the dust is effectively centrifuged and the dust is difficult to adhere to the primary filter 61a. It is possible to suppress a decrease in air pressure loss due to filter clogging.

  Further, since the coarse dust is collected in advance in the coarse dust chamber 43, the burden for centrifugal separation of the dust in the centrifugal separation chamber 45 is reduced, and the fine dust separated there is collected in the fine dust chamber 47. Therefore, it is possible to prevent fine dust from remaining in the centrifuge chamber 45 and maintain high centrifuge performance over a long period of time.

  Further, if the intake pressure loss in the fine dust chamber 47 is set to be larger than the intake pressure loss in the centrifugal separation chamber 45 and the coarse dust chamber 43, the fine dust is prevented from remaining in the centrifugal separation chamber 45, and the high centrifugal force is reduced. Separation performance can be maintained over a long period of time.

  Furthermore, the size of each filter of the primary filters 60a, 61a, 62a, the material, the openings A, B, C60, so that the amount of intake air in the centrifugal separation chamber 45 is at least 1.3 cubic m / min. If the areas 61 and 62 are set, a sufficient amount of air for cooling the electric blower 2 is secured, abnormal heat generation and burning of the electric blower 2 are prevented, and the life of the electric blower 2 is extended.

  As described above, the vacuum cleaner according to the present invention is very easy to clean and maintain a plurality of filters, and has various filters for collecting dust, for home use, commercial vacuum cleaners, and air cleaners. Can be widely applied to ventilation equipment etc.

Whole perspective view of the electric vacuum cleaner in Embodiment 1 of this invention Top view of the vacuum cleaner Cross section of the vacuum cleaner Perspective view of the main body of the vacuum cleaner The figure which shows the power transmission structure inside the vacuum cleaner (A) Side view of the dust box unit of the vacuum cleaner (b) Plan view of the dust box unit (c) AA sectional view of FIG. 6 (b) (d) BB sectional view of FIG. 6 (b) Front view of the dust box unit Rear view of the dust box unit Perspective view of the dust box body of the dust box unit Perspective view of the filter unit of the dust box unit Cross section of the main part of the dust box unit Cross section of the main part of the dust box unit

  60a, 62a Primary filter

Claims (1)

An electric blower, a centrifugal separation chamber for separating fine dust by centrifugation, a coarse dust chamber arranged upstream of the centrifugal separation chamber for collecting coarse dust, and a fine dust arranged downstream of the centrifugal separation chamber and fine dust chamber for collecting a filter for substantially planar centrifuge chamber together with the location corresponding to the centrifugal separation chamber, a coarse dust compartment filter provided at a position corresponding to the coarse dust chamber A fine dust chamber filter provided at a position corresponding to the fine dust chamber, and the centrifugal chamber filter, the coarse dust chamber filter, and the fine dust chamber filter are integrated with each other. manner and is provided on substantially the same plane, the centrifugal separation chamber, in the direction suction air flowing into the centrifuge chamber along the surface of the filter for the centrifugal separation chamber, and a tangent of said centrifugal separation chamber vacuum cleaner is configured to flow from the direction.

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