JP4267041B2 - Electric vacuum cleaner - Google Patents

Description

The present invention relates to a vacuum cleaner having a filter in a dust collecting portion.

This kind of vacuum cleaner, which has a dust collecting part and electric blower in the main body case, and a filter for removing dust from the air sucked into the dust collecting part by driving the electric blower. By attaching a protrusion that scrapes dust to the opening of the dust collection part, the dust can be scraped off when throwing away the dust in the dust collection chamber, and this configuration reduces the hassle of throwing away dust The present inventor has proposed a machine (see Patent Document 1).
Japanese Patent Application No. 2004-43106.

However, the filter of the dust collecting part is likely to be clogged because the dust sucked into the dust collecting part adheres, and there is a problem unless frequent maintenance such as cleaning of the filter is required.

  Then, this invention is made | formed in order to solve such a subject, and makes it a subject to provide the vacuum cleaner which can reduce the effort of the maintenance of a filter.

A first means for solving the above problems is an electric cleaning system in which a dust collecting unit for collecting dust and an electric blower are installed in a vacuum cleaner body, and a hose is detachably connected to an intake air inlet of the vacuum cleaner body. In the machine, the dust collecting unit partitions a space between the suction port communicating with the intake air inlet, a filter disposed at the outlet of the dust collecting unit, and the suction port of the dust collecting unit and the filter. A partition wall, a disposable filter disposed on the upstream side of the partition wall, a first dust collection chamber formed in a space between the suction port and the partition wall and removing dust by the disposable filter; Disposing only dust accumulated in the first dust collection chamber, a second dust collection chamber formed in a space between the partition wall and the filter and removing dust that has passed through the first dust collection chamber by the filter JP further comprising an opening which opens into To.

According to the configuration of the present invention, since the clogging of the filter can be suppressed by disposing the disposable filter on the upstream side of the filter, it is possible to reduce the maintenance work of the filter. In addition, the garbage can be easily disposed of together with the disposable filter by opening the opening, and has the effect of improving the disposal workability .

(First embodiment)
1st Embodiment of the vacuum cleaner of this invention is explained in full detail below based on FIG. The vacuum cleaner main body 1 of the electric vacuum cleaner includes a dust collecting portion 2 that collects dust and an electric blower 3, and the dust collecting portion 2 is covered with a main body dust cover 4. An intake air inlet 6 to which the hose 5 is detachably connected communicates with the dust collecting portion 2. (See Figure 1)
The dust collection unit 2 includes a suction port 7 that communicates with the intake air inlet 6, a dust collection chamber 8 that stores dust sucked from the suction port 7, and an opening that opens and closes when dust collected in the dust collection chamber 8 is discarded. A portion 9, a handle 10 that is formed in the opening 9 and is operated when opening and closing the opening 9, a locking portion 11 that holds the opening 9 closed by engaging with the handle 10, An operation unit 12 that operates the unit 11 and a rotation shaft 13 that rotates the opening 9 so as to freely rotate (see FIG. 2).

  A filter 14 made of urethane or the like is disposed in the opening 9 so as to remove dust from the air exhausted from the dust collector 2. A disposable filter 15 is sealed with a packing 16 on the upstream side of the filter 14 between the opening 9 and the dust collection chamber 8 (see FIGS. 2 and 3). Moreover, the attachment surface 17 of the disposable filter 15 of the opening part 9 is formed in the flat surface with few unevenness | corrugations.

  In the vacuum cleaner configured as described above, air flows from the intake air inlet 6 to the suction port 7 of the dust collector 2 through the hose 5 by driving the electric blower 3, and dust is collected by the disposable filter 15 and the filter 14. When the electric blower 3 is removed and passes through the electric blower 3, the electric blower 3 is cooled and exhausted out of the cleaner body 1. Dust removed by the disposable filter 15 and the filter 14 is stored in the dust collection chamber 8.

  Since the clogging of the filter 14 can be suppressed by disposing the disposable filter 15 on the upstream side of the filter 14, the maintenance work of the filter 14 can be reduced. Moreover, since the disposable filter 15 is mounted by being sandwiched between the openings 9, the mounting properties of the disposable filter 15 can be improved. Furthermore, since the rotation shaft 13 is disposed at a position away from the outer peripheral surface of the dust collecting unit 2, the distance between the rotation shaft 13 and the dust collection chamber 8 can be increased, and the distal end portion of the disposable filter 15. The filter 14 can be reliably covered with the disposable filter 15 by securely sandwiching 18 between the opening 9 and the dust collection chamber 8. Moreover, since the attachment surface 17 of the disposable filter 15 is formed flat, damage to the disposable filter 15 can be prevented by the suction force of the electric blower 3.

  In the first embodiment, as shown in FIGS. 5 and 6, the disposable filter 15 may be held by the filter pressing portion 19 formed in the dust collecting chamber 8 at a position corresponding to the inside of the packing 16. . With this configuration, the packing 16 can be prevented from being sag by the disposable filter 15, and the sealing performance of the packing 16 when the use of the disposable filter 15 is stopped can be improved.

  Moreover, in 1st Embodiment, as shown in FIG. 7, you may print on the attachment surface 17 of the disposable filter 15 which shows the mounting position of the disposable filter 15. As shown in FIG. With this configuration, the user can easily understand the mounting position of the disposable filter 15.

(Second Embodiment)
8 to 13 show a second embodiment of the present invention. The same components as those in the first embodiment are denoted by the same reference numerals and description thereof is omitted.

The disposable filter 15a of the second embodiment is formed in a bag shape as shown in FIG. The opening 9 can be separated into a pre-filter part 20 and a main filter part 21. The prefilter portion 20 is provided with a coarse mesh prefilter 22. The main filter portion 21 is provided with a filter 14 made of urethane or the like.

  The disposable filter 15a can be easily mounted by simply covering the prefilter portion 20. An opening hole 24 is formed in the front surface (upstream side) of the disposable filter 15a. The prefilter portion 20 corresponding to the opening hole 24 is not provided with the prefilter 22, and the opening hole 24 communicates directly with the filter 14.

  Since the disposable filter 15a configured as described above is formed in a bag shape, the disposable filter 15a can be attached simply by covering the prefilter part 20, and the attachment property of the disposable filter 15 can be improved.

Moreover, since the bag-shaped disposable filter 15a is doubled and a large surface area of the filter can be secured, the life of the disposable filter 15a can be improved.
As a result, the maintenance work of the filter 14 can be further reduced.

  In addition, when the front surface (upstream side) of the disposable filter 15 is clogged, the amount of air flowing to the electric blower 3 is reduced and the temperature of the electric blower 3 is increased, which may adversely affect the life of the electric blower 3. . On the other hand, in 2nd Embodiment, since the opening hole 24 is provided in the front surface of the disposable filter 15, air can be flowed through the opening hole 24 to the electric blower 3, and it has a bad influence on the lifetime of the electric blower 3. There is no fear of affecting. At this time, since the dust can be removed by the disposable filter 15 on the rear side (rear stream side), the life of the filter 14 can be prevented from being reduced.

  Moreover, in 2nd Embodiment, as shown in FIG.12 and FIG.13, you may make it the structure which changed the material of the upstream (left side of FIG. 12) and downstream (right side of FIG. 12) of the disposable filter 15a. The eyes on the upstream side of the disposable filter 15a are made coarse, and the eyes on the downstream side of the disposable filter 15a are made fine.

  Since the surface area of the filter 14 is limited when the dust collecting unit 2 is made compact, there is a concern that the life of the filter 14 may be reduced due to clogging of the filter 14. On the other hand, in the second embodiment, the upstream side of the disposable filter 15a is roughened, and the downstream side of the disposable filter 15a is made finer. Capture small particles of particles downstream of the disposable filter 15a. In this way, small particles of particles are passed on the upstream side of the disposable filter 15a, and small particles of particles are captured on the downstream side of the disposable filter 15a. Therefore, clogging on the upstream side of the disposable filter 15a can be suppressed. And the lifetime of the disposable filter 15a can be improved.

  In addition, in 2nd Embodiment, although the opening hole 24 was formed in the upstream of the disposable filter 15, it is not limited to this structure. A protrusion (not shown) is formed on the prefilter portion 20 at a position corresponding to the opening hole 24, and a bag-like disposable filter 15a having no opening 9 is attached to the prefilter portion 20, whereby the disposable filter 15a Alternatively, the opening 9 may be formed by breaking the upstream side by a protrusion.

  Moreover, in 2nd Embodiment, although the disposable filter 15a was formed in the bag shape, it is not limited to this structure. As shown in FIG. 14, a single disposable filter 15 a ′ may be bent into an abbreviated shape.

(Third embodiment)
15 to 31 show a third embodiment of the present invention. Note that the same components as those in the first embodiment and the second embodiment are denoted by the same reference numerals and description thereof is omitted. 3rd Embodiment has shown the form regarding the positioning method of the disposable filter 15. FIG.

  15 to 17, a cutout 25 is formed in the disposable filter 15 corresponding to the shape of the rotation shaft 13 of the opening 9. As shown in FIG. 15, since the position of the disposable filter 15 is determined by positioning the notch 25 by the rotation shaft 13, the disposable filter 15 is reliably positioned on the upstream side of the filter 14 without being displaced. be able to. Moreover, since the rotation axis | shaft 13 which rotates the opening part 9 can be used also for positioning of the disposable filter 15, a structure can be simplified.

  Further, as shown in FIGS. 18 and 19, a notch 25a having a different shape is formed on the disposable filter 15, and a protrusion 26 corresponding to the notch 25a is formed on the mounting surface 17, thereby positioning the disposable filter 15. In addition, the configuration may be such that the front-rear directionality of the disposable filter 15 is regulated. With this configuration, it is possible to improve the life of the disposable filter 15 by regulating the directionality of the disposable filter 15 when the disposable filter 15 is formed into a bag shape.

  20 to 24, a protrusion 27 that regulates the position of the outer periphery of the disposable filter 15 is provided on the mounting surface 17 of the disposable filter 15 in the opening 9. 20 to 22 are configured such that protrusions 27 are provided on two adjacent sides of the mounting surface 17 of the disposable filter 15. With this configuration, the position of the disposable filter 15 is determined by bringing the disposable filter 15 into contact with the protrusions 27 on the two sides. Therefore, the disposable filter 15 is reliably positioned upstream of the filter 14 without being displaced. Can do.

  23 and 24 show a configuration in which protrusions 27 are provided on three sides of the mounting surface 17 of the disposable filter 15. With this configuration, the position of the disposable filter 15 can be easily determined by bringing the disposable filter 15 into contact with the protrusions 27 on the three sides, so that the disposable filter 15 can be securely and upstream of the filter 14 without being displaced. It can be easily positioned.

  25 to 31, the mounting surface 17 of the disposable filter 15 in the opening 9 is provided with a protrusion 28 that regulates the position of the disposable filter 15 and a hole 29 that engages the protrusion 28 in the disposable filter 15. It has become. 25 to FIG. 28, two protrusions 28 are provided on the mounting surface 17 of the disposable filter 15, and two holes 29 are provided in the disposable filter 15. With this configuration, the position of the disposable filter 15 is determined by engaging the two holes 29 of the disposable filter 15 with the two protrusions 28, so that the disposable filter 15 can be securely placed upstream of the filter 14 without being displaced. Can be located.

  29 to 31 are provided with three protrusions 28 on the mounting surface 17 of the disposable filter 15 and three holes 29 in the disposable filter 15. With this configuration, by engaging the three holes 29 of the disposable filter 15 with the three protrusions 28, the position of the disposable filter 15 is easily determined. Can be positioned reliably and easily. Moreover, the front-rear directionality can also be regulated by this configuration.

(Fourth embodiment)
32 to 35 show a fourth embodiment of the present invention. The same parts as those in the first to third embodiments are denoted by the same reference numerals and description thereof is omitted.

  In the fourth embodiment, a filter frame 30 that is rotated by the rotation shaft 13 is provided on the upstream side of the opening 9. A disposable filter 15 is detachably attached to the filter frame 30. A filter retainer 32 that is rotated by a shaft 31 is disposed at the tip of the filter frame 30 that faces the rotation shaft 13. Moreover, the rotating shaft 13 is arrange | positioned at the side which the handle 33 of the dust collection part 2 opposes (refer FIG. 32).

  In the dust collecting unit 2 configured in this way, the disposable filter 15 is mounted on the filter frame 30 by disposing the disposable filter 15 and holding the disposable filter 15 with the filter holder 32. Then, as shown in FIG. 33, by attaching the filter frame 30 to the dust collecting part 2 through the opening 9, the filter holder 32 of the filter frame 30 is fixed in a state where the disposable filter 15 is held. As a result, accumulation of dust on the filter 14 by the disposable filter 15 can be suppressed, and the life of the filter 14 can be improved.

  When the garbage stored in the dust collection chamber 8 is discarded, the filter frame 30 is also opened when the opening 9 is opened. At this time, as shown in FIG. 32, since the handle 33 is positioned upward and the rotation shaft 13 is positioned downward, the filter holder 32 is rotated in the direction of releasing the disposable filter 15 by gravity, and the disposable filter 15 is disposed of. And can be easily discarded. When the disposal of the garbage is finished, a new disposable filter 15 may be attached to the filter frame 30. At this time, since the disposable filter 15 can be easily attached only by placing the disposable filter 15 on the filter frame 30, the attachment property of the disposable filter 15 can be improved.

  In the fourth embodiment, as shown in FIG. 36, the rotation shaft 13 may be arranged on the handle 33 side. With this configuration, the opening 9 and the like are not obstructed when the waste is discarded, and the waste disposal workability is improved.

  In the fourth embodiment, the disposable filter 15 may be configured to be detachable by the lever 34 as shown in FIGS.

  The rotatable lever 34 is disposed in the vicinity of the operation unit 12. The lever 34 holds the disposable filter 15 as shown in FIG. 37 when rotated in one direction, and opens the disposable filter 15 as shown in FIG. 38 when rotated in the other direction.

  This configuration can prevent the disposable filter 15 from being discarded unless the lever 34 is operated when the disposable filter 15 is relatively dirty when the waste is discarded. When the disposable filter 15 is discarded, the disposable filter 15 is discarded by operating the lever 34.

  In this way, it is possible to prevent the disposable filter 15 that can still be used from being discarded simply by operating the lever 34, and the usability can be improved. Further, as shown in FIG. 39, since the lever 34 is disposed in the vicinity of the operation unit 12, the lever 34 and the operation unit 12 can be operated with one hand, and the operability can be improved.

(Fifth embodiment)
40 to 48 show a fifth embodiment of the present invention. Note that the same components as those in the first to fourth embodiments are denoted by the same reference numerals, and description thereof is omitted.

The disposable filter 15 disposed on the upstream side of the filter 14 of the opening 9 is not a ready-made product and is generally commercially available. For example, tissue paper or the like is used, and therefore the end of the disposable filter 15 is connected to the opening 9. It will stick out. As a result, when the dust collector 2 is stored in the cleaner body 1, the end of the disposable filter 15 protruding from the opening 9 is caught between the inner wall of the cleaner body 1 and the outer wall of the dust collector 2, and the disposable filter 15 may be damaged.

  On the other hand, in the fifth embodiment, the disposable filter 15 is prevented from being damaged by the disposable filter 15 protruding from the opening 9.

  40 to 42, a rib 35 having a substantially triangular cross section is formed on the mounting surface 17 of the disposable filter 15 to which the opening 9 of the dust collecting unit 2 is engaged, and the rib 35 is engaged with the opening 9. The engaged portion 36 is formed. With this configuration, the disposable filter 15 that protrudes from the opening 9 can be cut by the rib 35 and the engaged portion 36, so that the disposable filter 15 can be prevented from being damaged (see FIG. 42).

  43 to 46 have a configuration in which a frame body 37 that pivots between the opening 9 and the dust collecting chamber 8 is provided. The size of the frame body 37 is larger than the opening 9 and smaller than the disposable filter 15. With this configuration, the disposable filter 15 placed in the opening 9 can be fixed by the frame body 37, and the disposable filter 15 protruding from the opening 9 can be held in the housed state by the frame body 37. As a result, the disposable filter 15 can be prevented from being damaged.

  In addition, as shown in FIG. 46, the end of the disposable filter 15 can be treated by providing the cut-back 38 at the end of the opening 9, and the breakage of the disposable filter 15 can be prevented more reliably.

  47 and 48, the protection part 39 is formed in the opening 9, and the disposable filter 15 protruding from the opening 9 is covered with the protection part 39. With this configuration, the disposable filter 15 can be prevented from being damaged.

(Sixth embodiment)
49 and 50 show a sixth embodiment of the present invention. Note that the same components as those in the first to fifth embodiments are denoted by the same reference numerals and description thereof is omitted.

  The dust collecting unit 2 of the sixth embodiment is configured to sandwich the disposable filter 15 between the pre-filter unit 20 and the filter unit 30. Since the pre-filter part 20 is coarse to remove coarse dust, dust attached to the pre-filter part is easy to remove. Further, the disposable filter 15 is not easily clogged by the pre-filter portion 20. As a result, the lifetime of the disposable filter 15 can be improved. Moreover, the dust adhering to the prefilter part 20 can be easily removed.

(Seventh embodiment)
51 and 52 show a seventh embodiment of the present invention. Note that the same components as those in the first to sixth embodiments are denoted by the same reference numerals and description thereof is omitted.

  In the seventh embodiment, the disposable filter 15 is sandwiched between the front opening 40 and the rear opening 41 so as to be formed in a pleat shape. The front opening 40 and the rear opening 41 are formed in a wave shape as shown in FIG. As a result, by sandwiching the disposable filter 15 between the front opening 40 and the rear opening 41, the disposable filter 15 becomes pleated along the shape of the front opening 40 and the rear opening 41. The life of the disposable filter 15 can be improved by increasing the surface area.

(Eighth embodiment)
FIG. 53 shows an eighth embodiment of the present invention. The same parts as those in the first embodiment to the seventh embodiment are denoted by the same reference numerals and description thereof is omitted.

In the eighth embodiment, the shape of the mounting surface 17 of the disposable filter 15 is formed in a horizontally long (a <b) rectangle. Generally, tissue paper is often used for the disposable filter 15. In general, the dimensions of the tissue paper are 200 to 210 mm in length and 220 to 230 mm in width. Therefore, the dimensions of the mounting surface 17 are about 10 to 40 mm smaller than the tissue paper (a) 160 to 180 mm, and width (b) 180 to 200 mm. As a result, the tissue paper can be attached to the attachment surface 17 relatively easily.

(Ninth embodiment)
54 to 56 show a ninth embodiment of the present invention. The same parts as those in the first to eighth embodiments are denoted by the same reference numerals and description thereof is omitted.

  In the ninth embodiment, the shape of the locking portion 11 that holds the opening 9 in the closed state is locked to the opening 9 from the outer peripheral side of the opening 9 (see FIG. 56). With this configuration, the locking part 11 does not pierce the disposable filter 15 sandwiched between the opening 9 and the dust collecting chamber 8, and the opening 9 is locked while the disposable filter 15 is deformed by the locking part 11. Therefore, the disposable filter 15 can be prevented from being damaged. As a result, when the dust in the dust collection chamber 8 is thrown away, it is not necessary to remove the engagement of the engaging portion 11 that has pierced the disposable filter 15, so that the disposal workability of the disposable filter 15 can be improved.

(10th Embodiment)
57 to 59 show a tenth embodiment of the present invention. The same parts as those in the first to ninth embodiments are denoted by the same reference numerals and description thereof is omitted.

  In the first to ninth embodiments, the filter 14 is disposed in the opening 9 that is rotated by the rotation shaft 13. However, in the tenth embodiment, the filter 14 is disposed in a place other than the opening 9. ing.

A space between the suction port 7 of the dust collecting unit 2 and the filter 14 is partitioned by a partition wall 42 having an opening. A filter frame 43 is provided in the opening 9 that rotates around the rotation shaft 13. A filter 14 is disposed at the outlet of the dust collection unit 2. The filter frame 43 is close to the partition wall 42 when the opening 9 maintains the dust collection chamber 8 in a closed state. The space between the suction port 7 and the partition wall 42 serves as a first dust collection chamber 44 that removes large dust by applying air sucked from the suction port 7 to a collision wall 46 that faces the suction port 7. The space between the partition wall 42 and the filter 14 is a second dust collection chamber 45 in which fine dust that has passed through the first dust collection chamber 44 is removed by the filter 14. The disposable filter 15 is configured to be sandwiched between the partition wall 42 and the filter frame 40.

  Since the tenth embodiment is configured as described above, relatively large dust is removed from the air sucked from the suction port 7 in the first dust collecting chamber 44, and the removed dust is accumulated in the opening 9. . Fine air is removed from the air flowing into the second dust collection chamber 45 through the disposable filter 15 and the partition wall 42, and is exhausted outside the dust collection unit 2.

  Since dust in the air flowing into the second dust collecting chamber 45 can be removed by the disposable filter 15, the load on the filter 14 can be reduced and the life of the filter 14 can be improved. Since the disposable filter 15 can be easily discarded when the opening 9 is opened, the disposal workability of the disposable filter 15 can be improved. Further, the filter frame 43 moves from the inside of the first dust collecting chamber 44 to the outside of the first dust collecting chamber 44 along with the opening of the opening 9, and therefore has an effect of scraping out the dust in the first dust collecting chamber 44, and disposal of the dust Workability can be improved.

It is a sectional side view of the vacuum cleaner of 1st Embodiment of this invention. It is an expanded sectional view of the dust collection part of the vacuum cleaner. It is sectional drawing of the dust collection part of the same vacuum cleaner. The top view of the dust collecting part of the same vacuum cleaner shows the state seen from the attachment surface side. It is sectional drawing of the dust collection part of the same vacuum cleaner, and shows a modification. It is a principal part sectional drawing of FIG. 5, and shows the expanded state. It is a top view of the dust collection part of the same vacuum cleaner, and shows another modification. It is a sectional side view of the vacuum cleaner of 2nd Embodiment of this invention, and shows the unfolded state. It is the principal part sectional drawing of FIG. 8, and shows the expanded state. The top view of the dust collecting part of the same vacuum cleaner shows the state seen from the attachment surface side. It is a top view of the disposable filter of the dust collection part of the same vacuum cleaner. A development sectional view of a dust collection part of the vacuum cleaner shows a modification. It is a principal part sectional drawing of FIG. 12, and shows the expanded state. The modification of the disposable filter of the dust collection part of the same vacuum cleaner is shown. It is a top view of the dust collection part of the vacuum cleaner of 3rd Embodiment of this invention, and the state seen from the attachment surface side is shown. It is a top view of the disposable filter of the dust collection part of the same vacuum cleaner. It is sectional drawing of the dust collection part of the same vacuum cleaner. The top view of the dust collection part of the vacuum cleaner shows a modification. It is AA sectional drawing of FIG. It is a top view of the dust collection part of the same vacuum cleaner, and shows another modification. It is a top view of the state which equipped the dust collecting part of the vacuum cleaner with the disposable filter. It is AA sectional drawing of FIG. It is a top view of the dust collection part of the same vacuum cleaner, and shows another modification. It is a top view of the state which equipped the dust collecting part of the vacuum cleaner with the disposable filter. It is a top view of the dust collection part of the same vacuum cleaner, and shows another modification. It is a top view of the disposable filter of the dust collection part of the same vacuum cleaner.

It is a top view of the state which equipped the dust collecting part of the vacuum cleaner with the disposable filter. It is AA sectional drawing of FIG. It is a top view of the dust collection part of the same vacuum cleaner, and shows another modification. It is a top view of the disposable filter of the dust collection part of the same vacuum cleaner. It is a top view of the state which equipped the dust collecting part of the vacuum cleaner with the disposable filter. It is a top view of the dust collection part of the vacuum cleaner of 4th Embodiment of this invention, and the state which expand | deployed is shown. It is a top view of the dust collection part of the same vacuum cleaner. It is a top view of the disposable filter of the dust collection part of the same vacuum cleaner. It is sectional drawing of the filter holding | suppressing of the dust collection part of the same vacuum cleaner. The expansion | deployment top view of the dust collection part of the same vacuum cleaner shows a modification. The top view of the other modification of the dust collection part of the same vacuum cleaner shows the state holding the disposable filter. The top view of the other modification of the dust collection part of the same vacuum cleaner shows the state which opened the disposable filter. It is a top view of the other modification of the dust collection part of the same vacuum cleaner. It is sectional drawing of the dust collection part of the vacuum cleaner of 5th Embodiment of this invention. It is principal part sectional drawing of the dust collection part of the same vacuum cleaner, and shows the state before cut | disconnecting a disposable filter. It is principal part sectional drawing of the dust collection part of the same vacuum cleaner, and shows the state after cut | disconnecting a disposable filter. A development sectional view of a dust collection part of the vacuum cleaner shows a modification. It is a top view of the modification of the dust collection part of the same vacuum cleaner. It is sectional drawing of the dust collection part of the same vacuum cleaner, and shows the expanded state. It is sectional drawing of the modification of the dust collection part of the same vacuum cleaner, and shows the expanded state.

It is sectional drawing of the dust collection part of the same vacuum cleaner, and shows another modification. It is sectional drawing of the other modification of the dust collection part of the same vacuum cleaner, and shows the expanded state. It is an expanded sectional view of the dust collection part of the vacuum cleaner of a 6th embodiment of the present invention. It is sectional drawing of the dust collection part of the same vacuum cleaner. It is an expanded sectional view of the dust collection part of the vacuum cleaner of a 7th embodiment of the present invention. It is sectional drawing of the dust collection part of the same vacuum cleaner. It is a top view of the dust collection part of the vacuum cleaner of 8th Embodiment of this invention, and the state seen from the attachment surface side is shown. The expanded state is sectional drawing of the dust collection part of the vacuum cleaner of 9th Embodiment of this invention. It is a sectional view of the dust collection part of the vacuum cleaner, and shows the developed state. It is sectional drawing of the dust collection part of the same vacuum cleaner. It is sectional drawing of the dust collection part of the vacuum cleaner of 10th Embodiment of this invention. It is sectional drawing of the dust collection part of the vacuum cleaner, and shows the state which opened the opening part. It is a top view of the filter frame of the dust collection part of the same vacuum cleaner.

Explanation of symbols

1 Vacuum cleaner body
2 Dust collector
3 Electric blower
9 opening
14 Filter
15 Disposable filter 22 Prefilter
35 Ribs
36 engaged parts
37 frame
39 Protection Department

Claims (1)

In the vacuum cleaner, which is equipped with a dust collecting part for collecting dust in the vacuum cleaner body and an electric blower, and a hose is detachably connected to the intake inlet of the vacuum cleaner body,
The dust collection unit includes a suction port communicating with the intake air inlet, a filter disposed at an outlet of the dust collection unit, and a partition wall that partitions a space between the suction port of the dust collection unit and the filter. A disposable filter disposed on the upstream side of the partition wall; a first dust collection chamber formed in a space between the suction port and the partition wall; and removing dust by the disposable filter; and the partition wall A second dust collection chamber formed in a space between the filter and removing dust that has passed through the first dust collection chamber by the filter, and an opening for discarding only dust accumulated in the first dust collection chamber. An electric vacuum cleaner comprising an opening .

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