JP4742961B2 - Dust collecting filter for electric vacuum cleaner and electric vacuum cleaner using the same - Google Patents

Description

  The present invention relates to a dust collecting filter for an electric vacuum cleaner, and an electric vacuum cleaner using the same.

A conventional dust collecting filter for a vacuum cleaner is folded in a cylindrical shape so that both edges of the filter medium are pasted and a plurality of gusset folds are formed on the side surface, and the cylindrical both end openings are folded and pasted. It is sealed (see, for example, Patent Document 1).
Japanese Patent No. 3274010

  However, in the above configuration, since the opening at both ends of the gusset fold is folded and bonded, when the paper bag spreads out by suction of the electric blower while attached to the cleaner body, the center is sufficiently widened, but both ends are gusset There was a problem that the crease did not spread sufficiently.

  This invention solves the said subject, and it aims at providing the dust collection filter for vacuum cleaners, and a vacuum cleaner using the same.

In order to solve the above conventional problems, the present invention provides:
A substantially rectangular bag-like body formed of a filter medium having air permeability and flexibility, a suction port provided in the bag-like body, and a support plate attached to the suction port and having a dust suction port, After the outer periphery of the bag is pasted and sealed, at least one side of the four sides is provided with mountain folds on both sides of this side so that it becomes a valley fold so that the vertices on both sides of the side are not folded. It is equipped with a dust collecting filter for vacuum cleaner, which is characterized by folding inside, and there is no entrainment adhesive part, so there is no one that regulates the spread of the end as in the past, like the center part Because it spreads sufficiently, the dust collection capacity increases, and the air flow rate decreases . Moreover, since the apex is not folded, it is easy to spread, and further, the dust collection capacity can be increased and the air flow rate can be improved. Can be provided.

  ADVANTAGE OF THE INVENTION According to this invention, the dust collection filter for vacuum cleaners and the vacuum cleaner using the same which a bag spreads sufficiently, a dust collection capacity | capacitance becomes large, and air volume fall can also be improved can be provided.

1st invention has the substantially square bag-shaped body formed with the filter material which has air permeability and flexibility, the suction port provided in the said bag-shaped body, and the dust suction port attached to the said suction port a support plate, after the bag-like body which was affixed sealed periphery, such that at least one side edge of the four sides, the valley fold portions so as not folded on both sides vertices of this edge, on both sides of the edges It is equipped with a dust collecting filter for a vacuum cleaner, which is characterized by providing a mountain fold and folding it inside, and there is no entrainment adhesive part, so there is nothing that regulates the spread of the end as in the past As well as the central part, it spreads sufficiently, increasing the dust collection capacity and improving the air flow rate . Further, since the apex is not folded, it can be easily expanded, and further, the dust collection capacity can be increased and the air flow rate can be improved, and the usability can be improved .

  2nd invention has the substantially square bag-shaped body formed with the filter material which has air permeability and flexibility, the suction port provided in the said bag-shaped body, and the dust suction port attached to the said suction port The bag-like body is provided with a support plate, and after the outer periphery is adhered and sealed, at least one of the four sides is folded inward by providing a mountain fold in the filter medium so that the side is a valley fold, and the folded side As the dust collecting filter for an electric vacuum cleaner is characterized in that the vicinity of the apex of both sides of the bag-like body is folded back so as to be disposed in the vicinity of the mountain fold portion that is the outermost outer shape portion after folding, the entrainment adhesive portion Therefore, there is nothing that restricts the spread of the end portion as in the conventional case, and it spreads as well as the central portion, so that the dust collection capacity is increased and the airflow reduction is improved. Further, since the apex is not folded, it can be easily expanded, and further, the dust collection capacity can be increased and the air volume can be reduced.

  According to a third aspect of the present invention, there is provided a bag-like body formed by ultrasonically welding at least three locations of four sides of a substantially square shape in a state where two sets of substantially square filter media having air permeability and flexibility are opposed to each other. A support plate having a suction port provided in the bag-like body and a dust suction port attached to the suction port, wherein at least one of the four sides of the bag-like body is a valley fold. The filter medium is provided with a mountain fold portion and folded inside, and the vicinity of both vertices of the folded side is folded back so as to be disposed in the vicinity of the mountain fold portion which is the outermost outer shape portion of the bag-like body after folding. Since it is a dust collecting filter for vacuum cleaners, there is no entraining adhesive part, so there is no restriction on the end part as in the conventional case, and it spreads as well as the central part, so the dust collection capacity is also large. The air volume drop is also improved. Further, since the apex is not folded, it can be easily expanded, and further, the dust collection capacity can be increased and the air volume can be reduced.

  The fourth invention is characterized in that at least one vertex of a substantially rectangular shape of the dust collecting filter for a vacuum cleaner according to the first invention is cut in a C plane, and the spread of the vertex is improved. The folding work can be performed more easily.

  In the fifth invention, the filter medium of the first to fourth inventions is formed of a resin nonwoven fabric having air permeability and flexibility, and since the nonwoven fabric is softer and easier to spread than conventional paper, further spreadability is achieved. Can be improved.

  The sixth invention is an electric vacuum cleaner provided with a dust collecting chamber for storing the dust collecting filter for electric vacuum cleaners of the first to fifth inventions, and can be easily obtained by using the dust collecting filter of the present invention. The dust collection volume of the vacuum cleaner and the decrease in air volume can be improved.

  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)
A first embodiment of the present invention will be described with reference to FIGS.

  FIG. 1 is a developed front view of a dust collecting filter for a vacuum cleaner according to the first embodiment, FIG. 2 is a folding view of the dust collecting filter, FIG. 3 is a cross-sectional view taken along line AA ′ in FIG. Detailed sectional view of the dust collecting filter, FIG. 5 shows a perspective view of a vacuum cleaner using the dust collecting filter. 1 to 5, the main body 1 includes an electric blower (not shown) that generates suction air, and a basket body 4 and a basket body 4 that house the dust collection filter 3 on the upstream side of the suction air of the electric blower. A dust collection chamber 5 for storage and a dust collection lid 14 are provided. The basket body 4 was provided with a handle portion 6 for taking out the basket body 4.

  Next, details of the dust collection filter will be described.

The dust collection filter 3 has two substantially square filter media each made of three layers of resin nonwoven fabric having air permeability and flexibility, facing each other, and ultrasonically welds an ultrasonic weld 7 consisting of four sides of the filter media. And a support plate 10 attached to the suction port 9 and having a dust suction port. The three-layered resin non-woven fabric is made of a nonwoven fabric having a weight per unit of 42 ± 2 g / m ² and a thickness of 0.24 ± 0.4 mm by polypropylene bonding 3a on the outside. / M ² and a non-woven fabric having a thickness of 0.2 ± 0.02 mm, and the inner resin non-woven fabric is a non-woven fabric having a basis weight of 50 ± 5 g / m ² and a thickness of 1.5 ± 0.5 mm by heat bonding 3c of polypropylene. The bag-like body 8 is provided with a valley fold portion 11 that folds the upper and lower ultrasonic weld portions 7 toward the suction port 9, but each apex 12 portion of the four-side ultrasonic weld portion 7 is the outermost shape in a folded state. It is further bent so as to be disposed in the vicinity of the mountain fold 13 that is a portion.

  About the vacuum cleaner comprised as mentioned above, the operation | movement and an effect | action are demonstrated below.

  When the vacuum cleaner main body 1 is operated, the electric blower rotates, and dust is collected by the suction air through the suction port 9 by the suction air.

  When the dust collection filter 3 is filled with dust and disposed of when the dust collection filter 3 is discarded, the dust collection filter 3 is pulled out of the vacuum cleaner body 1 by holding the handle 6 by hand, and then is directly collected. 3 can be discarded.

  According to the dust collection filter of the present embodiment, since there is no entrainment adhesive portion, there is no restriction on the spread of the end portion as in the prior art, and it spreads as well as the central portion, so the dust collection capacity increases and the air volume Decrease also improves. Further, since the apex 12 is not folded, it can be easily expanded, and further, the dust collection capacity can be increased and the air volume can be reduced.

  Even when the apex 12 is folded in the same manner as the ultrasonic weld 7, the end portion is easier to expand than the conventional one because there is no entrainment adhesive portion. The resin nonwoven fabric has the thickest inside and is made of a coarse nonwoven fabric with a low density, so that it collects coarse dust and collects small dust in three dimensions to secure a flow path and prevent a reduction in air flow. Yes. The middle resin nonwoven fabric is the thinnest and has the highest density and collects fine dust. This non-woven fabric has a structure in which clogging due to fine dust is unlikely to occur because a large number of flow paths are secured by entanglement of fibers having a fine fiber diameter.

  The basket body 4 is provided with a plurality of openings to secure the flow path, and in addition to the flow path securing configuration of the non-woven filter medium, the air flow rate can be further reduced.

  In this example, two substantially square filter media are opposed to each other and four sides are ultrasonically welded. However, by folding one filter medium to face each other, the three sides are ultrasonically welded. If the outer periphery is pasted and sealed into a bag-like body, there is an advantage that the man-hour can be further reduced. In addition, the same effect can be obtained by other means such as heat welding and high-frequency welding for sticking and sealing.

(Embodiment 2)
A second embodiment of the present invention will be described with reference to FIGS.

  FIG. 6 is a developed front view of the dust collecting filter for a vacuum cleaner according to the second embodiment, and FIG. 7 is a folding view of the dust collecting filter.

  In FIG. 6, the dust collection filter 3 ′ is made by ultrasonic welding of the outer periphery of the filter medium with two filter media having a C-face opposed to the four vertices of a substantially square shape in which three layers of resin nonwoven fabric having air permeability and flexibility are stacked. The portion 7 is adhered and sealed by ultrasonic welding, and has a bag-like body 8 ′ formed in a bag shape, a suction port 9 provided in the bag-like body 8 ′, and a dust suction port attached to the suction port 9. A support plate 10 is provided. As shown in FIG. 7, the bag-like body 8 ′ is provided with a valley fold 11 ′ for folding the upper and lower ultrasonic welds 7 toward the suction port 9.

  By constructing as described above, since a space is formed in the portion A shown in FIG. 7 compared to the case where there is no C-plane, the suction air can easily pass to the corner of the bag-like body, and the spreadability can be improved. . Furthermore, the C surface cut eliminates the need for weaving to the back, and the folding workability is improved.

  As described above, the dust collecting filter for a vacuum cleaner and the vacuum cleaner using the same according to the present invention can improve the usability in which the bag is sufficiently widened, the dust collecting capacity is increased, and the air flow rate is reduced. It is particularly useful for vacuum cleaners for home use and business use.

The expanded front view of the dust collection filter for vacuum cleaners which shows Embodiment 1 of this invention Folding drawing of the dust collection filter A-A 'sectional view of FIG. Detailed sectional view of the dust collection filter Perspective view of a vacuum cleaner using the dust collection filter The development front view of the dust collection filter for vacuum cleaners which shows Embodiment 2 of the present invention Folding drawing of the dust collection filter

Explanation of symbols

3, 3 'dust collection filter 7 ultrasonic welding part 8, 8' bag-like body 9 inlet 10 support plate 11, 11 'valley fold part 12 apex 13 mountain fold part

Claims (6)

A substantially rectangular bag-like body formed of a filter medium having air permeability and flexibility, a suction port provided in the bag-like body, and a support plate attached to the suction port and having a dust suction port, After the outer periphery of the bag is pasted and sealed, at least one side of the four sides is provided with mountain folds on both sides of this side so that it becomes a valley fold so that the vertices on both sides of the side are not folded. Dust collection filter for vacuum cleaner, which is folded inside. A substantially rectangular bag-like body formed of a filter medium having air permeability and flexibility, a suction port provided in the bag-like body, and a support plate attached to the suction port and having a dust suction port, After attaching and sealing the outer periphery of the bag-like body, at least one of the four sides is folded inward by providing a fold portion in the filter medium so that the side is a valley fold portion, A dust collecting filter for an electric vacuum cleaner, wherein the dust collecting filter is folded back so as to be disposed in the vicinity of a mountain fold portion which is an outermost portion after folding of the bag-like body. A bag-like body formed by ultrasonically welding at least three of the four sides of the substantially quadrilateral with two sets of substantially square filter media having air permeability and flexibility facing each other, and the bag-like body A suction plate provided and a support plate attached to the suction port and having a dust suction port, wherein at least one of the four sides of the bag-like body has a mountain fold in the filter medium so that the side is a valley fold. A vacuum cleaner characterized in that it is folded inward so that the vicinity of both vertices of the folded side is disposed in the vicinity of the mountain fold portion, which is the outermost portion after folding of the bag-like body. Dust collection filter. The dust collecting filter for an electric vacuum cleaner according to claim 1, wherein at least one apex of the substantially rectangular shape is cut in a C plane. The dust collection filter for vacuum cleaners of any one of Claims 1-4 which formed the filter medium with the resin nonwoven fabric which has air permeability and flexibility. The vacuum cleaner provided with the dust collection chamber which accommodates the dust collection filter for vacuum cleaners described in Claims 1-5.

Images