JP2005065973A - Dust collection bag for vacuum cleaner, and method of producing the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a dust collection bag for a vacuum cleaner which can be adapted to a plurality of models of vacuum cleaners, where dust is prevented from being leaked from a gap between the introduction port of the dust collection bag and a vacuum cleaner body, and which can be produced by simply equipment and at low costs. <P>SOLUTION: Regarding the dust collection bag for the vacuum cleaner, on the outer surface of a bag body 10 having an opening part 11, the rear surface of a port paper 20 having the introduction port 21 is bonded so that the opening part 11 and the introduction port 21 may conduct. The port paper 20 is provided with first annular perforations 21b outside of the introduction port 21. In addition, on the surface of the port paper 20, an annular packing 30 with a hole of the same shape as that of the introduction port 21 of the port paper 20 is bonded so that the periphery of the introduction port 21 may be superposed with that of the hole 31. The packing 30 is provided with second annular perforations 31b at a position which is nearly superposed with the first perforations 21b. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a dust bag for a vacuum cleaner and a method for manufacturing the same.

As a dust bag for an electric vacuum cleaner, a bag body is generally formed by bonding a bag body having an opening and a base having an introduction port so that the introduction port and the opening are in substantially the same position. It is.
Usually, the dust collection bag is mounted in the dust collection chamber of the main body of the electric vacuum cleaner, and is used in a state in which the tip of the nozzle of the vacuum cleaner is inserted into the bag main body through the opening of the opening of the paper bag and the bag main body.
Conventionally, a dust bag for a general-purpose vacuum cleaner, which can be adapted to the dust collection part of various types of vacuum cleaners by devising the shape of the mouthpiece, has been proposed and marketed (for example, The following patent documents 1, 2).
Japanese Patent No. 256208, Japanese Utility Model Publication No. 6-025251

In such a general-purpose type vacuum cleaner dust bag, various ideas for achieving good compatibility with a plurality of types of vacuum cleaners have been proposed.
For example, it has been proposed that an annular perforation that is slightly larger than the introduction port is formed around the introduction port of the base paper, and a packing is bonded around the perforation. This configuration prevents dust from leaking from the gap between the inlet of the cover and the nozzle of the cleaner when the dust bag is used in the dust chamber of the vacuum cleaner body. It is effective.
In addition, by cutting the inlet opening portion of the paper from the perforation, the inlet can be used with a larger size, which is convenient for adapting to multiple types of vacuum cleaners.

  However, the dust collection bag having such a configuration requires precise positioning when the packing is bonded around the perforation provided outside the inlet of the cover. For this reason, a large amount of equipment is required, such as using an apparatus equipped with a robot arm for mass production, resulting in an increase in production cost.

  The present invention has been made in view of the above circumstances, and can be adapted to a plurality of types of vacuum cleaners, and can prevent dust leakage from the gap between the dust bag introduction port and the cleaner body. An object of the present invention is to provide a dust collection bag for a vacuum cleaner and a method for producing the same, which can be manufactured at low cost with simple equipment.

In order to achieve the above object, the present invention employs the following configuration.
In the dust collecting bag for a vacuum cleaner of the present invention, the back surface of the cover having the inlet is bonded to the outer surface of the bag body having the opening so that the opening and the inlet are electrically connected. A dust collection bag for an electric vacuum cleaner, wherein the cover is provided with an annular first perforation outside the inlet, and on the surface of the cover, An annular packing having a hole having the same shape as the introduction port is bonded so that a peripheral edge of the introduction port and a peripheral edge of the hole overlap with each other, and the packing substantially overlaps the first perforation. An annular second perforation is provided.

  Preferably, the center point of the second perforation of the packing coincides with the center point of the hole of the packing, and the center point of the first perforation of the cover and the center of the inlet of the cover The configuration is different from the point.

  The present invention is also a method for producing a dust bag for a vacuum cleaner according to the present invention, wherein a jig provided with a rod that can be inserted into the inlet of the cover without looseness is used in advance. An adhesive layer is provided on at least one of the adhesive surfaces of the packing, and after alternately performing the step of inserting the inlet of the cover into the rod and the step of inserting the hole of the packing into the rod, There is provided a method of manufacturing a dust collecting bag for a vacuum cleaner, comprising a step of pressing the cover paper and the packing in a direction in which they are in close contact with each other to bond them together.

According to the dust bag for a vacuum cleaner of the present invention, an annular packing having a hole having the same shape as the inlet of the cover is formed on the surface of the cover, and the periphery of the inlet and the periphery of the hole Since they are bonded so as to overlap, dust leakage from the gap between the inlet and the nozzle of the vacuum cleaner can be effectively prevented. Further, the positioning of the base paper and the packing can be easily performed with simple equipment because the peripheral edge of the inlet of the base paper and the peripheral edge of the hole of the packing need only be overlapped.
Further, the packing is provided with an annular second perforation at a position substantially overlapping with the first perforation of the cover, so that the inlet opening portion of the cover is cut off from the first perforation and the packing By cutting out the hole portion from the second perforation, it is possible to easily enlarge the inlet of the base paper and the hole of the packing. Therefore, it can be adapted to a plurality of types of vacuum cleaners having different nozzle diameters. In addition, since the packing is provided around the introduction port thus enlarged, it is possible to effectively prevent dust leakage from the gap between the enlarged introduction port and the nozzle of the vacuum cleaner. it can.

In addition, if the center point of the first perforation of the cover is different from the center point of the inlet of the cover, that is, the first perforation is eccentric with respect to the inlet, Since the distance from the edge of the mouthpiece to the center of the inlet can be changed before and after cutting with the first perforation, it can be collected according to the structure of each dust collection chamber of multiple types of vacuum cleaners. It can be designed so that the center position of the inlet of the cover when mounted in the dust chamber is a more appropriate position. Thereby, compatibility with a plurality of types of electric vacuum cleaners can be improved, and dust leakage from the gap between the inlet of the cover and the nozzle of the cleaner can be more effectively prevented.
Further, even if the center point of the first perforation of the cover is different from the center point of the inlet of the cover, the center point of the second perforation of the packing and the center point of the hole of the packing Since the second perforation and the hole are concentric with each other, the direction of the packing can be arbitrarily determined when the packing is bonded onto the surface of the base. Accordingly, the first perforation of the base paper can be decentered as described above and the suitability for a plurality of types of vacuum cleaners can be improved without causing complication of alignment during manufacturing.

Further, according to the method for manufacturing a dust bag for a vacuum cleaner of the present invention, the step of inserting the inlet of the cover into the bar provided on the jig and the step of inserting the hole of the packing are performed. Thus, since the peripheral edge of the inlet of the cover and the peripheral edge of the packing hole can be easily overlapped, the alignment of the cover and the packing can be easily performed. Then, an adhesive layer is provided in advance on at least one of the adhesive surfaces of the base paper and the packing, and after these are inserted through the rod, they can be easily bonded together by pressing in a direction in which they are in close contact with each other. it can. Therefore, the dust bag for an electric vacuum cleaner of the present invention can be manufactured with simple equipment at a low cost.
Further, after a plurality of cover sheets and a plurality of packings provided with the adhesive layer in advance are alternately inserted through the rods, a plurality of pairs of the cover sheets and the packings are bonded simultaneously by pressing together. As a result, the manufacturing efficiency can be improved and the manufacturing cost can be further reduced.

Embodiments of the present invention will be described below with reference to the drawings, but the present invention is not limited to the following embodiments. 1 and 2 show an embodiment of a dust bag for a vacuum cleaner according to the present invention. FIG. 1 is a plan view and FIG. 2 is a perspective view.
In the dust bag for a vacuum cleaner of the present embodiment, the opening 11 and the introduction port 21 are electrically connected to the back surface of the cover 20 having the introduction port 21 on the outer surface of the bag body 10 having the opening 11. Thus, they are generally configured by bonding. A packing 30 is bonded on the surface of the base 20.

  The bag body 10 is capable of collecting the collected dust and capturing pests such as ticks, and examples of the material thereof include pulp, natural or synthetic fiber, natural or synthetic resin, rubber, A filter material obtained by processing a material such as metal into a material such as paper, film, woven fabric, non-woven fabric, sheet, plate, piece, or rod-like body is used alone or laminated.

  The bag body 10 may be formed of a single bag body, or may have a configuration in which two or more bag bodies are stacked in layers. When a plurality of bag bodies are stacked in layers, the inner bag body (inner bag) is configured with a bag body having a hole that can remove large dust, and the outer bag body (outer bag) contains fine dust. A bag body having holes that can be removed is preferable for preventing clogging in the bag body 10. In addition, an active substance may be immobilized on the bag body 10 in order to control captured insect pests, and a mat or sheet on which the active substance is immobilized may be provided in the bag body 10.

As shown in FIG. 2, the bag body 10 is formed into a flat belt-like body having bellows portions 16 by folding both end portions in the width direction of the cylindrical body inside, and further, both end portions in the length direction are on the lower surface side of the belt-like body. It is formed into a shape provided with a bent portion 14 by being bent and bonded and sealed. The opening 11 of the bag body 10 is disposed at a substantially central portion on the upper surface of the belt-like body.
As shown in FIG. 1, the bag body 10 has a substantially rectangular shape having long sides 12 a and 12 b along the bellows portion 16 and short sides 13 a and 13 b along the bent portion 14 in a state where the bellows portion 16 is folded and flattened. Make a shape. The lengths of the short sides 13a and 13b are 113 to 122 mm. Therefore, it is easy to attach the bag body 10 to the dust collection chamber of the vacuum cleaner. In addition, a sufficient adhesion area with the base 20 can be secured. On the other hand, the length of the long sides 12a and 12b is 233 to 242 mm.

  The opening 11 of the bag body 10 is provided with an annular perforation (not shown) outside the circular peripheral edge 11a, and a plurality of perforations radially connecting the peripheral edge 11a and the perforation. 11c is provided. The size of the opening 11 and the position thereof are slightly adjusted depending on whether or not these perforations are cut off. The perforation on the outer side of the peripheral edge 11a is in a position where the bag main body 10 and the base paper 20 are bonded to each other so as to substantially overlap a first perforation 21b of the base paper described later or It is provided so as to be located slightly inside.

  On the other hand, the cover 20 is a member that is detachably fixed to a predetermined part in the dust collection chamber of the vacuum cleaner, and is made of a material having a certain degree of strength. For example, pulp, natural or synthetic fiber, natural or synthetic resin, rubber, metal, etc. processed into a material such as paper, film, woven fabric, nonwoven fabric, sheet or plate, or a laminate of these materials laminated Etc. are preferably used.

The mouthpiece 20 has a substantially rectangular plate shape, and a circular introduction port 21 is provided at a substantially central portion.
In the present embodiment, for the sake of convenience, the end of the paper cover 20 on the side where the step portion whose width gradually decreases toward the outside is provided is the upper end portion 22, and the upper end portion 22 and the introduction port 21 are sandwiched. The end portion on the side is the lower end portion 23, the end portion connecting the left ends of the upper end portion 22 and the lower end portion 23 is the left end portion 24, and the end portion connecting the right ends of the upper end portion 22 and the lower end portion 23 is the right end portion 25. . Therefore, the direction parallel to the left end portion 24 and the right end portion 25 is the up-down direction. This direction is provided for convenience of explanation, and the dust collection bag is provided in the dust collection chamber of the vacuum cleaner. It does not mean the mounting direction when mounting.

The lower end portion 23 has a straight edge and is provided with perforations 23a and 23b as recess forming means on the inside. Depending on whether or not these perforations 23a or 23bc are cut off, the lower end portion 23 has a different uneven shape.
Further, perforations 22a, 22b and 22c as means for adjusting the length in the vertical direction, that is, the distance from the lower end 23, and perforations 22d as a recess forming means are provided inside the upper end portion 22. ing. The shape of the upper end portion 22 is changed by cutting with the perforations 22a, 22b, 22b and 22d, or 22c and 22d.
The left end 24 is provided with a bulging portion 24a that bulges outward, and a perforation 24b as a width adjusting means and a perforation 24c as a recess forming means are formed inside the left end 24. Yes.
The right end portion 25 is provided with a bulging portion 25a that bulges outward, and a perforation 25b as a width adjusting means is formed on the inside thereof.
And the width from the left end part 24 to the right end part 25 changes by cutting off the perforation 24b and the perforation 25b. Further, by cutting the perforation 24c, a concave portion is formed in the left end portion 24 so that it can cope with a projection or the like.

An annular first perforation 21b is provided in the introduction port 21 of the cover 20 on the outer side of a circular peripheral edge 21a. The width W1 between the peripheral edge 21a of the introduction port 21 and the first perforation 21b is not uniform in the circumferential direction, the portion closest to the upper end portion 22 is the thickest, and from there toward the lower end portion 23 side. It is gradually reduced, and the difference portion is the thinnest at the lower end 23. That is, the center point of the circle forming the first perforation 21b is perpendicular to the upper side in the vertical direction of the cover 20, that is, the perpendicular line extending from the upper end portion 22 to the lower end portion 23 with respect to the center point of the circle forming the peripheral edge 21a. Slightly shifted toward the upper end 22 in the direction.
Then, by cutting the perforation 21b, the size of the inner diameter of the introduction port 21 is increased, and the center point of the introduction port 21 is slightly moved toward the upper end portion 22 side. The distance to the center point 21 (and the distance from the lower end 23 to the center point of the inlet 21) is changed.
Specifically, the diameter of the peripheral edge 21a of the inlet 21 is d1, the diameter of the first perforation 21b is d2, and the center position of the first perforation 21b is the mouth position of the center of the peripheral edge 21a. When the paper 20 is shifted by A toward the upper end in the vertical direction, the difference between the thickest part and the thinnest part of the width W1 between the peripheral edge 21a of the inlet 21 and the first perforation 21b is 2A. The value of the difference in W1 (= 2A) is preferably about 0.5 to 1.5 mm, for example, about 1 mm.

  The packing 30 is made of an elastic material and is preferably made of polyurethane. In order to prevent dust from leaking from the gap between the inlet 21 of the cover 2 and the nozzle of the vacuum cleaner, the thickness of the packing 30 is preferably in the range of 0.5 to 1.5 mm. Specifically, it is more preferable to form the packing 30 using a polyurethane sheet having a thickness of about 1 mm.

The packing 30 is annular and has a hole 31.
The peripheral edge 31 a of the hole 31 of the packing 30 is formed in a circular shape having the same size as the peripheral edge 21 a of the inlet 21 of the cover 20, and positioning is performed so that the peripheral edge 21 a of the inlet 21 and the peripheral edge 31 a of the hole 31 overlap. Has been.
The packing 30 is provided with an annular second perforation 31b outside a circular peripheral edge 31a. The second perforation 31b of the packing 30 is provided at a position substantially overlapping with the first perforation 21b of the cover 20, and when the first perforation 21b of the introduction port 21 of the cover 20 is cut off, the packing 30 By cutting the second perforation 31b of the hole 31 together, the introduction port 21 of the cover 20 and the hole 31 of the packing 30 are enlarged to have substantially the same shape. The expanded inlet 21 is surrounded by the remainder of the packing 30.
In the present embodiment, the peripheral edge 31a of the hole 31 and the second perforation 31b are concentric, and the width W2 between them is uniform in the circumferential direction. In the state where the first perforation 21b of the cover 20 and the second perforation 31b of the packing 30 are cut off, the end of the expanded hole of the packing 30 is inserted into the expanded inlet 21 of the cover 20. It is preferable that the portion does not protrude, and for this reason, the second perforation 31b of the packing 30 and the first perforation 21b of the base 21 are located at a portion closest to the upper end 22 of the base 20. It is preferable to design so that it may overlap. That is, the center point of the peripheral edge 31 a of the hole 31 of the packing 30 and the central point of the second perforation 31 b coincide with the central point of the peripheral edge 21 b of the introduction hole 21 of the cover paper 20, and the diameter of the peripheral edge 31 a of the hole 31. Is equal to the diameter (d1) of the peripheral edge 21a of the introduction port 21, and the diameter d3 of the second perforation 31b of the packing 30 is larger than the diameter d2 of the first perforation 21b. It is preferable to design so as to be twice as large as (d3 = d2 + 2A).

The mouthpiece 20 is formed so that the length direction of the short sides 13a and 13b of the bag body 10 and the vertical direction of the mouthpiece 20, that is, the perpendicular direction extending from the upper end portion 22 to the lower end portion 23 are orthogonal to each other. The peripheral edge 21a of the introduction port 21 of the paper 20 and the peripheral edge 11a of the opening 11 of the bag body 10 are arranged so as to be concentric, and the outer surface of the bag body 10 and the back surface of the cover paper 21 are bonded. .
In addition, the range of the bonding portion between the bag body 10 and the base 20 is set so that each perforation provided in the base 20 does not exist in the bonding portion.

  The vacuum cleaner dust collection bag having such a configuration is used with the bag body 10 inflated in a dust collection chamber of the vacuum cleaner. At the time of attachment, the paper cover 20 is inserted into a fixing member provided in the dust collection chamber and is detachably fixed. The insertion direction (setting direction) of the dust collection bag of the present embodiment is the lower end 23 of the paper cover 20. Is the direction to be inserted in the back. Prior to mounting, the upper end portion 22, the lower end portion 23, the left end portion 24, the right end portion 25, the introduction port 21, and the perforations provided in the opening portion 11 of the bag body 10 are necessary. The shape of the base 20 can be changed in a plurality of ways. The perforation to be cut out is determined according to the structure of the fixing member of the cover 20 provided in the dust collection chamber.

Next, as an embodiment of the method for producing a dust bag for a vacuum cleaner according to the present invention, a method for producing a dust bag for a vacuum cleaner having the configuration shown in FIGS.
First, while cutting a plate-shaped raw material into a predetermined shape, a perforation is provided at a predetermined position to produce the cover sheet 20.
Separately from this, a packing 30 is prepared. An adhesive layer is provided on one of the front and back surfaces of the packing 30. For example, a laminate in which release paper is laminated on one surface of a polyurethane sheet with an adhesive layer is peeled off by a cutting device provided with a blade having a shape corresponding to the outer periphery of the packing, the hole 31, and the second perforation 31b. By cutting the paper to a depth that does not cut, the packing 30 having the adhesive layer can be produced. As the adhesive, for example, an acrylic adhesive is preferably used.

Next, the base paper 20 and the packing 30 are bonded together. FIG. 3 is a perspective view showing an example of a jig suitably used in the bonding process between the base 20 and the packing 30. The jig includes a base 1, a round bar 2 having a circular cross-section standing upright with respect to the base 1, and a guide provided at the end of the base 1 so as to have an L-shaped cross section. A plate 3 is provided.
The round bar 2 is formed in such a size that it can be smoothly inserted into the introduction port 21 (inside the peripheral edge 21 a) of the cover 20. The round bar 2 and the guide plate 3 are parallel to each other, and the distance between them is designed to be equal to the distance from the lower end 23 of the cover 20 to the peripheral edge 21 a of the inlet 21.

For the bonding between the cover 20 and the packing 30, first, the introduction port 21 of the cover 20 is inserted through the round bar 2 of the jig. At this time, the surface of the cover 20 is on the upper side, that is, the surface to which the packing 30 of the cover 20 is bonded is the front end side of the round bar 2. In addition, the end surface of the lower end portion 23 of the base paper 20 is in a direction in which the end surface is in contact with the guide plate 3.
Subsequently, the hole 31 of the packing 30 is inserted through the round bar 2. At this time, the adhesive layer of the packing 30 is set to the lower side, that is, the base 1 side. The direction of the packing 30 may be arbitrary.
Similarly, a plurality of pairs of paper sheets 20 and packings 30 are alternately inserted into the round bar 2 in this order.
Then, the plurality of pairs of base papers 20 and the packings 30 stacked in a state of being inserted into the round bar 2 are collectively pressed in a direction to be pressed against the base 1 from the tip side of the round bar 2, thereby The base paper 20 and the packing 30 are bonded and integrated through an adhesive layer.
A dust collecting bag for an electric vacuum cleaner is obtained by bonding the back surface of the cover 20 having the packing 30 bonded on the front surface to the outer surface of the separately produced bag body 10 thus obtained.

  According to the present embodiment, it is possible to perform the bonding of the cover 20 and the packing 30 efficiently with high reproducibility using a simple jig, and in particular, the end face of the cover 20 is brought into contact with the guide plate 3. By doing so, the direction of the cover 20 is aligned, so that the pressing operation is easy, and the workability when the cover 20 to which the packing 30 is bonded is used in the next process is also good.

In this embodiment, the end surface of the lower end portion 23 of the cover 20 is configured to contact the guide plate 3, but the upper end 22, the lower end 23, and the left end 24 of the cover 20 are not limited to the lower end 23. Further, any one end surface of the right end portion 25 may be configured to contact the guide plate 3. In particular, since the lower end portion 23 has a straight edge, it is more preferable in that the position of the base 20 is stably determined while being in contact with the guide plate.
Moreover, it can also be set as the structure which provides two or more guide plates and contact | abuts the end surface of two or more edge parts to each guide plate.

  Further, the order in which the base 20 and the packing 30 are passed through the round bar 2 can be arbitrarily determined. For example, the packing 30 is inserted so that the adhesive layer is on the upper side (the tip side of the round bar 2), and then the base paper 20 is inserted so that the surface is on the lower side (base 1 side). You may let them.

It is a top view which shows embodiment of the dust collection bag for vacuum cleaners of this invention. It is a perspective view which shows embodiment of the dust collection bag for vacuum cleaners of this invention. It is a perspective view for demonstrating the adhesion process of a base and packing in the manufacturing method of the dust collection bag for vacuum cleaners of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Base 2 Rod 3 Guide board 10 Bag main body 11 Opening part 20 Portion 21 Introduction port 21a Periphery (introduction port)
21b First perforation 30 Packing 31 Hole 31a Periphery (hole)
31b Second perforation

Claims (3)

On the outer surface of the bag body having the opening, the back surface of the cover having the introduction port is a dust collection bag for a vacuum cleaner bonded so that the opening and the introduction port are conducted,
An annular first perforation is provided on the outer side of the introduction port, and the annular shape has a hole having the same shape as the introduction port of the attachment on the surface of the attachment. The packing is bonded so that the periphery of the introduction port and the periphery of the hole overlap, and the packing is provided with an annular second perforation at a position substantially overlapping with the first perforation. A dust bag for a vacuum cleaner, characterized by   The center point of the second perforation of the packing coincides with the center point of the hole of the packing, and the center point of the first perforation of the cover and the center point of the inlet of the cover are 2. The dust bag for electric cleaning air according to claim 1, wherein the dust bag is different. It is a method of manufacturing the dust bag for a vacuum cleaner according to claim 1 or 2, wherein a jig provided with a rod that can be inserted into the inlet of the mouthpiece without looseness is used in advance, An adhesive layer is provided on at least one of the adhesive surfaces of the packing, and after alternately performing the step of inserting the inlet of the cover into the rod and the step of inserting the hole of the packing into the rod, A method of manufacturing a dust collecting bag for a vacuum cleaner, comprising a step of pressing the base paper and the packing in a direction in which they are in close contact with each other to bond them together.

Images