JP2002200017A - Dust collecting bag for vacuum cleaner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a dust collecting bag for vacuum cleaner, which does not generate dust leaking from the rolled-in adhered edge. SOLUTION: A bag body comprising a filter medium with air-permeability and flexibility is made laterally long cylinder whose open both end edges 10 are rolled in and adhered to form a dust collecting bag 1. Both edge ends of the dust collecting bag 1 are twice rolled in. Assuming the first and second rolled-in parts a, b respectively and a<b and the position of an applied adhesive to the edge side afar a distance L from the open end edges and a+b<L<2b, the open end edges 10 are rolled in and closed upon adhering.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dust bag used for a vacuum cleaner.

[0002]

2. Description of the Related Art A conventional dust bag for electric cleaning will be described with reference to the drawings.

[0003] In FIGS. 3 and 4, a dust collecting bag 1 is composed of a paper bag 2 made of paper having air permeability and flexibility, and a mouth plate 3 adhered to the paper bag 2.

[0004] The paper bag 2 is provided with bellows 4 so as to face each other along the longitudinal direction of the horizontally long cylinder to which the opposite sides are bonded.
a and 4b are provided, and after being wound twice on both sides of the horizontally long cylinder, they are formed into a bag-like body by bonding.

A suction port 5 is provided substantially at the center of the outer wall on one side of the paper bag 2.
The mouth plate 3 is adhered to the paper bag 2 so as to align the dust suction port 6 with the suction port 5.

As shown in FIG. 4, the wrapping portions 7 on both sides of the paper bag 2 are wrapped twice, and the adhesive 8 is applied in the range of FIG. And is adhered to the outer wall facing.

Next, an automatic assembly process of the dust bag 1 will be described.

First, while forming the suction port 5, the roll-shaped paper material is pulled while being deformed into a U-shape. Subsequently, a guide plate is pressed against both side portions of the U-shape to form predetermined bellows portions 4a and 4b, and then both ends are laminated and adhered to form a tubular body having a bellows shape. Next, after cutting the cylindrical body to a predetermined length, the dust inlet 6 is aligned with the inlet 5 and the mouth plate 3 is bonded.

Next, the tubular body 9 is replaced with a horizontally long one,
The opening edges on both sides are folded inward along the guide plate 12 by about 10 mm (Y1 position in FIG. 4). The opening edge side 10 of the roller 11 having a width of about 7 mm to which the adhesive has been applied is aligned with the inside of the folded opening edge 10 at a distance of about 3 mm, and the roller 11 is pressed against the cylindrical body 9 to apply the adhesive 8. Apply. Subsequently, a second turn is performed at the Y2 position in FIG. 4 along the guide plate 12 at the position of the turned-up opening edge portion 10 and is adhered and fixed to the outer wall while forming the wrapped portion 7, thereby completing the assembly. I have.

[0010]

In the above-mentioned conventional dust collecting bag 1, when assembling with an automatic machine, when the final second folding is performed, the roller 11 is pressed against the opening edge 10 of the first folding. When the adhesive 8 is applied, the adhesive 8 adheres to the guide plate 12 for folding.
When this adhesion is repeated, the adhesive accumulated on the guide plate 12 and the resistance of the dust bag 1 cause the dust bag 1 being assembled to flow on the automatic machine to be clogged, causing a clogging situation and stopping production, In addition, the adhesive 8 adheres to an unnecessary portion of the dust bag 1 to cause an adverse effect such as a defective product.

Therefore, in order to prevent this, as described above, 1
The adhesive 8 is applied to the inside about 3 mm away from the opening edge 10 of the second turn. In this case, the adhesive 8 is applied to the opening edge 10 itself and the adhesive is closed. Therefore, when fine dust such as cement is concentrated and sucked into the dust collection bag 1, particularly when used in a vacuum cleaner having a strong suction force, the air permeability of the dust collection bag 1 is small due to the fine dust. As a result, the vacuum pressure in the dust collecting bag 1 is significantly increased due to the clogging state, and as a result, fine dust leaks from the opening edge portion that cannot be closed just by folding.

An object of the present invention is to solve the above-mentioned problems and to provide a dust collecting bag for a vacuum cleaner which does not cause dust leakage.

[0013]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a horizontally long cylindrical bag made of a filter medium having air permeability and flexibility, and a dust communicating with a suction port of the bag. A mouth plate having a suction port is attached to an outer wall of the bag-shaped body, and when the edge of the horizontally long cylinder is caught, an adhesive is applied to the opening edge and both sides of the opening are closed. By wrapping the edges together, even when the air permeability of the dust bag becomes clogged with fine dust and the vacuum pressure inside the dust bag rises markedly, the edges of both sides inside the wrap-around adhesive part on both sides Fine dust can be leaked.

[0014]

BEST MODE FOR CARRYING OUT THE INVENTION
It has a horizontally long cylindrical bag-like body made of a filter medium having air permeability and flexibility, and a mouth plate having a dust suction port communicating with a suction port of the bag-like body and attached to an outer wall of the bag-like body. When the edge of the elongated cylinder is caught, the adhesive is applied to the opening edge and the edges of both sides of the opening are wound and adhered so that the opening edge is closed. Even if the vacuum pressure in the dust collecting bag is significantly increased due to the clogging state, it is possible to eliminate the leakage of fine dust from both side edges in the wrap-around bonding portion on both sides.

According to a second aspect of the present invention, in the dust bag according to the first aspect, an adhesive is applied to the opening edge and closed by wrapping the edge on both sides of the opening twice. Even if the adhesive is applied to the dust collecting bag only once, the adhesive is applied to the opening edge, and the adhesive is also applied to the entire folded portion of the dust collecting bag caused by one roll-in of the edges on both sides of the opening. Yes, even if the air permeability of the dust bag becomes clogged with fine dust and the vacuum pressure inside the dust bag rises significantly,
Fine dust can be prevented from leaking from both side edges in the wrap-around bonding portions on both sides.

According to a third aspect of the present invention, in the dust collecting bag according to the first or second aspect, the edges on both sides of the opening are wound twice, and the first winding dimension from the end face is a2, Assuming that the second winding dimension is b, a <b
In addition, the position of the adhesive to be applied on the edge side is such that the distance L from the opening edge is a + b <L <2b, so that the edge can be adhesively closed at low cost.

[0017]

(Embodiment 1) Hereinafter, a first embodiment of the present invention will be described with reference to FIGS. Note that the same components as those in the conventional example are denoted by the same reference numerals, and description thereof will be omitted.

First, the automatic assembly process of the dust bag 1 according to the present invention will be described.

First, a cylindrical body 9 to which the mouth plate 3 is adhered is assembled in the same manner as in the prior art. Next, the cylindrical body 9 is replaced with a horizontally long shape, and the opening edges 10 on both sides are folded inward along the guide plate so that a = about 10 mm (Y1 position in FIG. 1).
An adhesive is applied to the inside of the folded open edge 10 at a distance of about 5 mm, the adhesive is applied to the cylindrical body 9 by positioning the open edge 10 side of the roller having a width of about 7 mm and pressing the roller against the cylindrical body 9. I do. That is, the application range of the adhesive 8 is about 25 to 32 mm from the opening edge 10 before the first folding. That is, assuming that the distance from the opening edge 10 before folding back to the opening edge 10 side of the application range of the adhesive 8 is L, L = about 25 mm.

Subsequently, FIG. 1 shows that b = about 13 mm.
The second folding is performed along the guide plate at the position Y2. In this folding, the position of the original opening edge 10 is changed from the position of the opening edge 10 before the first folding by a + b + (b−
a) = 2b = approximately 26 mm. As a result, the adhesive 8 is caught in the application area of the adhesive 8, and the adhesive 8 is transferred to the opening edge 10 and adhered to the outer wall before being caught by the adhesive 8. At the same time, the opening edge 10 itself is also adhesively closed.

As a result of the above construction, the edge of the wrapped portion 7 is closed by bonding with the adhesive 8, and the dust bag 1 is used by attaching it to a vacuum cleaner having a high suction performance. Even when the fine dust is concentrated and sucked, and the paper bag 2 is clogged and the vacuum pressure in the dust bag 1 is significantly increased, the dust does not leak from the edge inside the entangled portion 7.

In addition, the closing of the edge can be achieved by setting only the application position of the adhesive 8 and the folding size in the winding and bonding process during the assembly of the dust collecting bag 1, and can be achieved without increasing the cost. It is.

[0023]

As described above, claims 1 to 5 of the present invention are provided.
According to the third aspect of the present invention, the outer wall of the bag-shaped body has a horizontally long cylindrical bag-shaped body made of a filter medium having air permeability and flexibility, and a dust suction port communicating with a suction port of the bag-shaped body. A vacuum cleaner provided with an attached mouth plate, wherein when the edge of the horizontally long cylinder is rolled up, an adhesive is applied to the opening edge and both side edges of the opening are rolled and adhered so as to be closed; During use, dust can be completely prevented from leaking from the edge to prevent dirt in the dust collection chamber and breakdown of the vacuum cleaner body.

[0024] Further, the present invention has the effect of achieving the above-mentioned adhesive blockage at the edge without increasing the cost.

[Brief description of the drawings]

FIG. 1 is a flow chart showing a first embodiment of the present invention, in which a dust collecting bag for a vacuum cleaner is attached to a wrapping portion of a dust collecting bag.

FIG. 2 is a central sectional view of the same.

FIG. 3 is a perspective view of a dust bag for a vacuum cleaner showing a conventional example.

FIG. 4 is a flow chart of a bonding process of a wrapping portion of the dust collecting bag.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Dust collection bag 2 Paper bag 3 Port plate 5 Suction port 6 Dust suction port 7 Entrapment part 8 Adhesive 10 Opening edge

 ──────────────────────────────────────────────────続 き Continuing from the front page (72) Inventor Masafumi Okushima 1006 Kazuma Kadoma, Osaka Prefecture Matsushita Electric Industrial Co., Ltd. (72) Inventor Yukiyoshi Nishikori 1006 Kazuma Kadoma, Kadoma-shi, Osaka Matsushita Electric Industrial Co., Ltd. F-term (reference) 3B062 AB35

Claims (3)

[Claims] 1. A bag having a horizontally long cylindrical shape made of a filter medium having air permeability and flexibility, and a dust suction port communicating with a suction port of the bag-shaped material, which is attached to an outer wall of the bag-shaped material. Equipped with a mouth plate,
A dust-collecting bag for a vacuum cleaner, wherein when the edge of the horizontally long cylinder is rolled up, an adhesive is applied to the opening edge and the side edges of the opening are rolled and adhered so as to be closed. 2. The dust collecting bag for a vacuum cleaner according to claim 1, wherein an adhesive is applied to the opening edge and the opening edge is closed by wrapping the edge twice on both sides of the opening. 3. The winding on both side edges of the opening is performed twice. When the first winding dimension from the end face is a and the second winding dimension is b, a <b, and the adhesive to be applied is formed. In the position on the edge side, the distance L from the opening edge is a +
The dust bag for a vacuum cleaner according to claim 1 or 2, wherein b <L <2b.