JPH05184498A - Dust bag of vacuum-cleaner - Google Patents

Abstract

PURPOSE:To prevent dust in a dust filter from escaping by means of completely closing a dust port by forming a folding line on the back side and on the outside of an adhesion face of a lid body and a paper bag, and forming a folding line near the end of cutting grooves, for folding the lid body along the folding line. CONSTITUTION:A cutting folding line 42 is formed on the back side 39a of a lid body 39 and on the outside of an adhesion face 43 of a mouse core 30 and a dust paper bag 31 so as to avoid penetrating from the back side 39a of a cardboard. A cutting folding line 41 is formed near the end of cutting grooves 38a, 38b on the front side 30a of a mouse core 30 so as to avoid penetrating from the front side 30a. The lid body 39 is folded along the fold lines 41, 42 toward a dust port 40 so as avoid scattering dust present in the dust paper bag 31. The dust paper bag 31 on the back side 39a of the lid body 39 and the dust paper bag 31 of the adhesion face 43 are separated from the lid body 39 by folding the folding line on the front side, to engage with the dust paper bag 31 and to completely close the dust port 40, so that the scattering of dust from the dust port 40 does not occur.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a paper-pack type dust collecting bag for a dust collecting filter for an electric vacuum cleaner.

[0002]

2. Description of the Related Art In a conventional general vacuum cleaner, a dust collecting chamber is arranged in the front and an electric blower is arranged in the rear, and a dust collecting filter is detachably attached to the dust collecting chamber through a bag support. Has been. There is known a paper pack type in which dust is collected by the dust collecting filter and then discarded together with the dust collecting filter. This type of dust collecting filter is a practical application
As described in Japanese Patent Publication No. 1-67455 and Japanese Examined Patent Publication No. 3-10326, after collecting dust on a dust collecting filter, a lid body for closing the dust suction port of the mouth core is provided. The lid is formed from a single sheet of paperboard, and two cut grooves are provided between both the core and the lid so that the lid is bent and the dust inlet is closed by the lid. The above structure will be described below with reference to FIG. As shown in the figure, the dust collecting filter 1 is formed by adhering a paper bag 2 to a mouth core 3 via an adhesive surface 7. The core 3 includes a dust suction port 4 and a lid 5. The lid body 5 is provided with two cut grooves 6a and 6b extending on the dust core 4 side of the core 3 at both ends thereof.
The two cut grooves 6a, 6b are connected to each other near the tips by bending lines 8 and the lid 5 is bent to press the dust suction port 4 of the core 3 to close the dust suction port 4. Dust is prevented from scattering from the dust collecting filter 1.

[0003]

With such a conventional structure, it is difficult to keep the adhesive surface 7 between the paper bag 2 and the mouth core 3 constant, and two adhesive pads 7 are provided to facilitate bending. Since the outer side of the cut grooves 6a and 6b is adhered, when the lid 5 is bent to close the dust suction port 4, the paper bag 2 is pulled in the folding direction, the adhesive surface 7 of the paper bag 2 is broken, and dust is collected. It has problems such as scattering. Further, in order to prevent the adhesive surface 7 of the paper bag 2 from being broken by providing the bending line 8 of the lid 5 outside the adhesive surface 7, the mouth core 3 itself becomes large, and the bag support and the dust collecting chamber are There was a problem that it became large and the vacuum cleaner itself became large and difficult to use.

The present invention has been made in consideration of the above conventional problems, and an object thereof is to provide a dust collecting filter for an electric vacuum cleaner capable of preventing the paper bag from being torn and easily closing the dust collecting port of the core. It is a thing.

[0005]

In order to solve the above-mentioned problems, the present invention is directed to a mouth core and one side of the mouth core, and
A dust collecting filter for an electric vacuum cleaner, comprising: a lid for closing the dust collecting port, wherein the lid and the core are formed from a single sheet of paperboard. A notch groove extending toward the dust suction port between is provided, and is connected by a bent line portion provided near the tip of the notch groove,
The positions of the folding lines on the front side and the back side of the lid are shifted, and the front side of the paperboard of the core is cut so that it does not penetrate from the front side, and the back side is cut and bent so that it does not penetrate from the back side. The line is to be entered. Further, the bending line on the back surface is provided in an arc shape in contact with the bonding surface, and the depths of the bending lines on the front surface side and the back surface side are changed from each other.

[0006]

According to the present invention, in the above-described structure, the folding lines provided on the core are displaced from each other on the front surface and the back surface, and the back surface (paper bag and the bonding surface side) is bent outward from the bonding surface. Cut from the back side so that it does not penetrate. In addition, since the front surface has cut and bent lines so that it does not penetrate from the front side of the paper board of the core, by folding the core toward the dust suction side, the paper board of the core is peeled off from the cut line on the back side and the paper bag is torn. Therefore, the dust suction port can be easily closed.

[0007]

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

As shown in FIG. 1, the dust collecting filter 32 includes a bag-shaped body 31 and a core 30. The bag-shaped body 31 is
It is formed of a filter material such as a flexible filter paper having air permeability. The core 30 is made of paperboard. An adhesive surface 43 is adhered to the mouth core 30 and the bag-like body 31 with an adhesive.
The mouth core 30 has a dust suction port 40 and a lid 39 that closes the dust suction port 40. The core 30 and the lid 39 have two cut grooves 3 that extend toward the dust inlet 40 side of the core 30 at both ends thereof.
8a and 38b are provided. The cut grooves 38a, 38b
A bending line 41 is provided in the vicinity of the tip of the lid 39 so that the lid 39 can be easily bent.

A fold line 42 is formed on the back surface 39a of the lid 39 on the outside of the bonding surface 43 of the core 30 and the paper bag 31 on the back surface side 3
A notch fold line 42 is formed so as not to penetrate from the back side of the paperboard from 9a. Further, the front side 30 of the mouthpiece 30
a is a bending line 41 near the tips of the cut grooves 38a and 38b.
A cut-and-bend line 41 is formed so that it does not penetrate from the front side 30a to the front side of the paperboard. The lid 39 is bent along the folding lines 41 and 42 toward the dust suction port 40 so that the dust in the dust collecting bag 31 does not scatter. Then the lid 39
Of the bag-like body 31 on the back surface side 39a and the bag-like body 31 of the adhesive surface 43
The lid 39 is peeled off from the fold line 42 on the back side and bent from the fold line on the front side to engage with the paper bag 9 to securely close the dust suction port 40, and dust is not scattered from the dust suction port 40.

Next, the second means will be described with reference to FIG. The same parts as those shown in the first embodiment are designated by the same reference numerals and the description thereof will be omitted. Front side 3 with the same structure as above
The method of cutting the bending line 41 of 0a and the positions 38a and 38b of the cutting grooves is the same as above, and the back side 39a is provided with the core 40.
A fold line 45 on the back surface side 39a is formed by cutting the fold line 45 outward from the back surface side 39a so as not to penetrate from the back surface side of the paperboard in contact with the adhesive surface 43 of the paper bag 31. When the lid body 39 is bent toward the dust suction port side 40 along the bending line 41, the lid body 39 is bent by peeling from the arcuate tip end portion of the back surface 39a of the lid body 39 from the back surface 39a of the lid body 39 of the bending line 45, The adhesive portion 43 of the paper bag 31 can be easily folded without breaking. The dust suction port 40 can be engaged with the lid 39 to securely close the dust suction port 40.

Next, the third means will be described with reference to FIG. With the same structure, the folding line 47 on the front surface side 30a is cut so as to be more than almost half of the paperboard, and the folding line 4
7, the back side 39a forms a fold line 48 on the back side 39a by cutting the fold line 48 outward from the bonding surface 43 of the core 30a and the paper bag 31 from the back side 39a so as to be less than about half of the paperboard. To do. When the lid 39 is bent to the dust suction port 40, the lid 39 is surely bent from the folding line 47, the back surface 39a is peeled off from the folding line 48, and the lid 39 is bent so that the adhesive portion 43 of the paper bag 31 can be easily folded. The dust suction port 40 can be engaged with the lid 39 to securely close the dust suction port 40.

[0012]

As is apparent from the description of the above embodiment, according to the present invention, the lid for preventing dust from leaking when the dust collecting filter is dumped is provided outside the adhesive surface between the lid and the paper bag. Form a fold line on the back side, form a fold line near the tip of the cut groove on the front side, and fold the lid along the fold line to prevent peeling from the back side of the core to prevent the paper bag from tearing. In addition, the lid securely closes the dust suction port to prevent the dust from leaking inside the dust collecting filter.

[Brief description of drawings]

FIG. 1 (a) is a plan view of a dust collecting filter of an electric vacuum cleaner showing a first embodiment of the present invention (b) is a sectional view taken along line AA of the core (c) is a plan view showing an example of use

FIG. 2 (a) is a plan view of a dust collecting filter showing a second embodiment of the present invention (b) is a cross-sectional view taken along the line BB of the core (c) is a plan view showing an example of use

FIG. 3 (a) is a plan view of a dust collecting filter showing a third embodiment of the present invention (b) is a sectional view taken along line CC of the core (c) is a plan view showing an example of use

FIG. 4A is a plan view of a dust collection filter showing a conventional example. FIG. 4B is a cross-sectional view taken along the line EE of the core.

[Explanation of symbols]

 30 Core 30a Surface 31 Paper Bag 32 Dust Collection Filter 38a, 38b Notch Groove 39 Lid 39a Back Side 40 Dust Intake 41, 42 Bend Line 43 Adhesive Surface

Claims (3)

[Claims] 1. A dust collecting filter which is made of a filter material such as paper having air permeability and flexibility and which collects dust,
The dust collecting filter has a dust suction port which communicates with the inside of the dust collecting filter, and a core attached to the outer wall of the dust collecting filter, and a lid which is continuous with one side of the dust core and closes the dust collecting port. In the dust collecting filter for an electric vacuum cleaner, wherein the lid and the core are formed from a single sheet of paperboard, the lid is provided with a notch groove extending between the two toward the dust inlet. And connect at the bending line portion provided near the tip of the cut groove, and make a cut so that the bending line on the front side of the lid does not penetrate from the front side of the paperboard, and the back side of the lid is open. The core is a notch that is cut out so that it does not penetrate from the back side of the paperboard of the lid body outside the adhesive application part of the core and the paper bag, and when the lid body is bent, the lid body is Fold it so that it does not peel off and the adhesive part of the paper bag does not break. For an electric vacuum cleaner dust bag provided with a bottom line. 2. A bending line on the back surface of the lid body is formed in an arc shape in contact with the adhesive surface, and when the lid body is bent, the lid body is bent so that the front surface and the back surface are separated by the arc bending line. The dust collecting bag for an electric vacuum cleaner according to claim 1, wherein a line is provided. 3. The fold line on the front surface side of the lid body is cut into more than half of the front surface side of the paperboard, and the back surface of the lid body is located outside the wick and the adhesive application portion of the paper bag, and the back surface of the paperboard of the lid body. 2. The dust collecting bag for an electric vacuum cleaner according to claim 1, wherein the folding line is formed so that the folding line is formed by less than half of the side, and when the lid is folded, the lid is provided with a folding line so that the front surface and the back surface are separated from each other.