JPH0810198A - Dust collecting filter of electric vacuum cleaner - Google Patents

Abstract

PURPOSE:To simplify the folding arrangement of a bag member, prevent mismounting of a dust collecting filter on a vacuum cleaner, and to ensure expansion of the bag member, and reduce the storage space required for the filter by reducing the thickness of the folded bag member. CONSTITUTION:A dust collecting filter of an electric vacuum cleaner is formed of an air-permeable and flexible filtering material into a tubular shape. The filter comprises a bag-like member 14 whose opposite open ends have been bonded, and a paper base 20 having a suction opening 21 connected to a suction opening 18 of the bag-like member 14. An end portion of the bag-like member 14 is folded along a line perpendicular to a bent portion of a body portion of the bag-like member 14 and to the back of the paper base 20, so as to avoid the overlapping of rolled-up portions 19 of the bag-like member 14.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disposable dust collecting filter used in a vacuum cleaner.

[0002]

2. Description of the Related Art Conventionally, as this kind of dust collecting filter, for example, one disclosed in Japanese Patent Publication No. 2-56090 (A47L 9/14) is known. This dust collecting filter is formed by attaching a mount to a bag-shaped body formed of a filter material and folding both ends of the bag-shaped body into a bellows shape multiple times with respect to the mount. However, in this configuration, since the folding method of the bag-shaped body is complicated, it is difficult to open the folded portion, the attachment state of the bag-shaped body to the cleaner body, the shape of the dust collecting chamber of the cleaner body, the cleaning Due to factors such as the suction performance of the electric blower of the machine body, the bag-shaped body may not be completely opened, and the dust collection capacity may be drastically reduced, or the predetermined suction performance may not be obtained.

[0003]

DISCLOSURE OF THE INVENTION The present invention has been made in view of the above-mentioned drawbacks, and a dust collecting filter for electric cleaning which can simplify the folding method of the bag-like body and improve the expanding performance of the bag-like body. The challenge is to provide.

[0004]

The first means of the present invention is to:
A backing sheet formed of a filter material such as paper having air permeability and flexibility in a tubular shape, and a bag-shaped body having both open ends bonded to each other, and a cardboard having a suction port attached to the suction port of the bag-shaped body. And, including both side open ends of the bag-shaped body is adhered,
Folding one end of the bag-shaped body in a direction orthogonal to the bent portion of the body of the bag-shaped body and on the back side of the backing so that the winding parts at both open ends of the bag-shaped body do not overlap. Is characterized by.

A second means of the present invention is a bag-shaped body formed of a filter material such as paper having air permeability and flexibility in a tubular shape, and having both open ends bonded to each other, and a suction port of the bag-shaped body. And a mount formed of cardboard or the like having a suction port to be attached, both side open ends of the bag-like body are wound and adhered, and one end of the bag-like body is orthogonal to the bent portion of the body of the bag-like body. Direction, and is folded a plurality of times on the back side of the mount in a bellows shape, and is folded so that the folded portion does not overlap the winding portions at the opening ends on both sides.

A third means of the present invention is a bag-shaped body formed of a filter material such as paper having air permeability and flexibility in a tubular shape, and having both open ends bonded to each other, and a suction port of the bag-shaped body. And a mount formed of cardboard or the like having a suction port to be attached, both side open ends of the bag-like body are wound and adhered, and one end of the bag-like body is orthogonal to the bent portion of the body of the bag-like body. Direction, and on the back side of the mount, the folding part does not overlap with the winding parts of the open ends on both sides, and is folded in a bellows-like shape several times so that opposite ends of the mount project from the folding part. And

[0007]

According to the first means of the present invention, since the bag-shaped body is an extremely simple folding method in which only one end is folded, the folded portion is easy to open and the bag-shaped body is more surely expanded. . Moreover, since the bag-shaped body is folded so that the winding portions do not overlap, the dust collecting filter becomes thin in the folded state, and the storage space becomes small.

According to the second means of the present invention, since the bag-shaped body is an extremely simple folding method in which only one end portion is folded, the folded portion is easy to open and the bag-shaped body spreads more reliably. . Further, since the bag-shaped body is folded so that the winding portion and the folding portion do not overlap with each other, the thickness of the dust collecting filter in the folded state becomes thin and the storage space becomes small.

According to the third means of the present invention, since the bag-shaped body is an extremely simple folding method in which only one end is folded, the folded portion is easy to open and the bag-shaped body spreads more reliably. . Also, since one end of the mount is projected from the folding part of the bag-shaped body, when it is inserted into the dust collection chamber of the electric vacuum cleaner from this one end side, the space between the mount locking part formed in the dust collection chamber and the mount is The bag-shaped body does not get caught in the vacuum cleaner, and the workability of attaching the dust collecting filter to the vacuum cleaner is improved. Further, since the bag-shaped body is folded so that the winding portion and the folding portion do not overlap with each other, the thickness of the dust collecting filter in the folded state becomes thin and the storage space becomes small.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described in detail below with reference to FIGS.

Reference numeral 1 denotes a cleaner body, which has a dust collecting chamber 2 having an upper surface opening at a front portion thereof, and a blower housing chamber 4 communicating with the dust collecting chamber 2 at a rear portion thereof and having an exhaust port 3 formed at a rear wall thereof. A main body case 5 and a lid 6 that opens and closes the upper opening of the dust collection chamber 2 are provided. Reference numeral 7 is an electric blower housed in the fan housing chamber 4.

Reference numeral 8 denotes a suction port formed in the front portion of the cleaner body 1, which communicates with the dust collection chamber 2 and has a flexible hose 9 detachably connected thereto. Reference numeral 10 denotes a rib which is a locking portion formed on the bottom surface of the dust collecting chamber 2 and holds a lower end of a mount 20 of a dust collecting filter 13 described later. Reference numeral 11 denotes a hook that is rotatably supported on the upper part of the dust collecting chamber 2 and holds the upper part of the mount 20 of the dust collecting filter 13,
The mount 20 is brought into contact with the packing 12 arranged around the suction port 8 by the rib 10 and the hook 11.

Next, the dust collecting filter 13 will be described in detail. Reference numeral 14 is a bag-shaped body made of a filter material 15 such as a paper or non-woven fabric having air permeability and flexibility, and as shown in FIG. 3, the ends of the filter material 15 are adhered and bent into a rectangular cross section, The center portions of the short sides on both sides of the rectangle are valley-folded to form the bellows portion 16, and the open ends 17 on both sides are rolled up and adhered with an adhesive to form a bag shape. 18 is a suction port formed on the side surface of the bag-shaped body 14, the side surface of the bag-shaped body 14 opposite to the winding direction of the winding portion 19 of both open ends 17, close to one opening end 17. Has been formed.

Reference numeral 20 is a mount formed of a relatively hard paper such as thick paper, and a suction port 21 is formed at a substantially central portion.
With the bag 21 facing the suction port 18 of the bag-shaped body 14,
A backing sheet 20 is adhered to a side surface of the suction port 18 formed on the side surface of the bag-shaped body 14 with an adhesive so as not to overlap the winding section 19. The suction port 21 of the mount 20 has a larger diameter than the suction port 18 of the bag-shaped body 14.

The bag-shaped body 14 and the mount 20 constitute a dust collecting filter 13. The bag-shaped body 14 has the other opening end 19 side different from the one opening end 19 close to the suction port 18 in the direction orthogonal to the bellows portion 16 of the bag-shaped body 14 and the attachment of the mount 20. Folds to the side different from the side. Bag
In this folded state, 14 is such that the end portion of the mount 20 projects from the folded portion 22 and the winding portion of the bag-shaped body 14
Folds so that 19 do not overlap.

In the dust collecting filter 13, the lid 6 of the cleaner body 1 is opened, and the end of the mount 20 protruding from the folding portion 22 of the bag-like body 14 is placed in the dust collecting chamber of the cleaner body 1. 2 ribs 10
, And the upper end of the mount 20 is engaged with the hook 11 so that the side face of the mount 20 is brought into close contact with the packing 12 of the suction port 8 of the cleaner body 1. Since the end of the mount 20 that engages with the rib 10 is projected from the folded portion 22 of the bag-shaped body 14, the folded portion 22 of the bag-shaped body 14 is sandwiched between the mount 20 and the rib 10 to form a bag-like shape. The body 14 does not become difficult to open.

In this state, a flexible hose 9, an extension pipe (not shown) and a floor suction tool are connected to the suction port 8 of the cleaner body 1 and the electric blower 7 is operated.
Dust is sucked into the inside of 14 together with air through the flexible hose 8 and the like, and the bag-like body 14 of the dust collecting filter 13 is spread by the pressure, and the dust is separated and left to pass only the air.

Since the dust collecting filter 13 is installed in the dust collecting chamber 2 with the folded portion 22 of the bag-shaped body 13 facing downward, the free end side of the bag-shaped body 14 to which the mount 20 is not attached is rotated downward. The other side surface of the bag-shaped body 14 to which the backing sheet 20 is not attached spreads as indicated by the broken line in FIG. 4 due to the pressure of the sucked air. The other side surface of the bag-shaped body 14 is expanded obliquely upward and rearward from the folded state to the vicinity of the inner surface of the lid body 6 by the pressure of air, and a large dust collecting capacity can be secured.

When the dust collecting filter 13 is mounted upside down, the free end side of the bag-shaped body 14 rotates upward, and the other side surface of the bag-shaped body 14 is slanted downward and rearward by the pressure of air. Although it spreads, its spread is regulated by the bottom surface and the back surface of the dust collection chamber 2, and since air pressure is less likely to be applied to the free end side, it is harder to spread toward the lid body 6 side, and compared to the above-described regular mounting state. , The dust collection capacity becomes smaller. However, since the end portion of the mount 20 is projected only from the folded portion 22 of the bag-shaped body 14, it is possible to prevent erroneous mounting.

In the above embodiment, the winding portion 19 of the bag-shaped body 14
The roll 20 is wound on the other side face where the mount 20 is not stuck, but as shown in FIG. 5, it may be rolled on the side face where the mount 20 is stuck. When the dust collecting filter 13 is mounted in the dust collecting chamber 2 by bringing the winding portion 19 close to the end of the mount 20, the lower portion of the mount 20 is pressed down by the rib 10 when the winding portion 19 is pressed.
Therefore, the workability of mounting can be improved.

Further, when the bag-shaped body 14 is large, as shown in FIGS. 6 to 8, even if the free end side of the bag-shaped body 14 to which the mount 20 is not attached is folded into a bellows-like shape a plurality of times. Good. At this time, by folding the folding part 22 and the winding part 20 so that they do not overlap with each other, it is possible to reduce the thickness of the dust collecting filter 13 in the folded state and reduce the storage space of the dust collecting filter 13. You can

[0022]

As described above, according to the structure of claim 1 of the present invention, the folding structure of the bag-shaped body can be simplified, and the bag-shaped body can be more surely expanded. The effect that the storage space can be reduced can be achieved.

According to the second aspect of the present invention, the folding structure of the bag-shaped body can be simplified, the bag-shaped body can be more surely expanded, and dust is collected in the folded state. You can make the filter thinner,
This has the effect of reducing the storage space of the dust collecting filter.

According to the third aspect of the present invention, the folding structure of the bag-shaped body can be simplified, and the workability of attaching the dust collecting filter to the electric vacuum cleaner can be improved, and the bag can be improved. It is possible to more reliably spread the shaped body and to maintain a large dust collecting capacity. Further, the dust collecting filter can be thinned in the folded state, and the storage space of the dust collecting filter can be reduced, and so on.

[Brief description of drawings]

FIG. 1 is a perspective view of a dust collecting filter according to an embodiment of the present invention.

FIG. 2 is a side view of the same.

FIG. 3 is a perspective view of the bag-shaped body.

FIG. 4 is a cross-sectional view of the cleaner body with the dust collecting filter attached.

FIG. 5 is a side view of a dust collecting filter showing another embodiment.

FIG. 6 is a perspective view of a dust collecting filter showing another embodiment.

FIG. 7 is a side view of the same.

FIG. 8 is a perspective view of the bag-shaped body.

[Explanation of symbols]

 13 Dust collection filter 14 Bag-shaped body 15 Filter material 16 Bellows-like part 17 Opening 18 Intake port 19 Roll-in part 20 Mount 21 Intake port 22 Folding part

Claims (3)

[Claims] 1. A cardboard which is formed in a tubular shape from a filter material such as paper having air permeability and flexibility, and has a bag-shaped body having both open ends adhered to each other, and a suction port attached to the suction port of the bag-shaped body. And the backing of the backing sheet, with the opening ends on both sides of the bag-like body being rolled up and bonded, and one end of the bag-like body is orthogonal to the bent portion of the body of the bag-like body. The dust collecting filter for the electric vacuum cleaner, which is folded so that the winding parts at the open ends on both sides of the bag do not overlap. 2. A cardboard which is formed into a tubular shape with a filter material such as paper having air permeability and flexibility, and has a bag-like body having both open ends adhered to each other, and a suction port attached to the suction port of the bag-shaped body. And the backing of the backing sheet, with the opening ends on both sides of the bag-like body being rolled up and bonded, and one end of the bag-like body is orthogonal to the bent portion of the body of the bag-like body. A dust collecting filter for an electric vacuum cleaner, characterized in that it is folded in a bellows shape a plurality of times on a side, and the folded portions are folded so as not to overlap with the winding portions at the opening ends on both sides. 3. A cardboard which is formed in a tubular shape from a filter material such as paper having air permeability and flexibility, and has a bag-like body having both open ends adhered to each other, and a suction port attached to the suction port of the bag-shaped body. And the backing of the backing sheet, with the opening ends on both sides of the bag-like body being rolled up and bonded, and one end of the bag-like body is orthogonal to the bent portion of the body of the bag-like body. On the side, the folded portion is folded into a bellows shape several times so that the folded portions do not overlap with the rolled-in portions at both open ends and the opposite ends of the mount are projected from the folded portion. Dust filter.