JPH105158A - Vacuum cleaner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent the lowering of the exhaust efficiency by holding an exhaust filter arranged in an exhaust port, which is formed in the rear face of a cleaner main body, in such a state as being folded into a pleated state and interposing a coating member between an adhesion member coating side of the exhaust filter and an exhaust port of the cleaner main body. SOLUTION: An interval of pleats of an exhaust filter 23, which is sandwiched between an exhaust plate 14 arranged in the rear part of a cleaner main body and an exhaust cover 18 arranged in the exhaust lower stream side of the exhaust plate 14, is held and formed by foldedly pleating nonwoven fabrics, etc., and coating crown parts of the pleats in its one side in the direction crossing at right angles with the folding direction of the pleats with adhesive resin 24. A coating member 25 for coating the exhaust filter 23 is welded to the outer circumferential part of the exhaust filter 23 by heat in such a state as covering the whole face of the exhaust filter 23. Even if the adhesion member for holding the pleats is softened by the exhaust heat, it is stuck to the cleaner main body case and so this constitution can prevent them from being detached from the exhaust filter 23.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vacuum cleaner provided with a filter at an exhaust port.

[0002]

2. Description of the Related Art Conventionally, a vacuum cleaner body is generally provided with a filter such as a non-woven fabric at an exhaust port thereof. However, since the conventional filter has a flat sheet shape, the exhaust area is small and the exhaust efficiency is low. There is a bad problem.

In view of this problem, it is conceivable to improve the exhaust efficiency by forming the filter in a pleated shape to increase the exhaust area. However, since the filter, which is a nonwoven fabric, is formed in a pleated shape, the filter has shape retention. When a mesh material or the like is bent and formed in accordance with a filter, the mesh material has a disadvantage that exhaust resistance increases and exhaust efficiency decreases.

[0004] In addition, a method is also conceivable in which the pleated ridges are fixed with an adhesive to hold the pleats in a state in which the filter is bent into a pleated shape. The processing method in this method is a method in which an adhesive resin softened by heating is applied to a ridge portion of a pleated filter, and the adhesive resin is cooled to be solidified to form a filter. It is.

In this case, since the adhesive resin is used in a state of being heated and melted, it is desirable to use an adhesive resin which softens at a relatively low temperature in view of workability and cost in processing the filter. If an adhesive with a low softening temperature is used, the adhesive is easily melted by the exhaust temperature of the vacuum cleaner body, and may be detached from the filter.If the pleats of the filter are biased, air will not easily pass through the biased part, There are drawbacks such as a decrease in the exhaust area and a decrease in the exhaust efficiency.

[0006]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned drawbacks, and has as its object to provide a vacuum cleaner having a filter having good exhaust efficiency, low cost, and good workability in manufacturing. .

[0007]

SUMMARY OF THE INVENTION According to the present invention, there is provided a cleaner body having a dust collecting chamber at the front and a motor chamber at the rear, an exhaust port formed at a rear surface of the cleaner body, and an exhaust port provided at the exhaust port. Exhaust filter is provided, and while the exhaust filter is bent into a pleated shape, held by an adhesive member having thermoplasticity, a gap between the adhesive member application side surface of the exhaust filter and the exhaust port of the cleaner body is provided. It is characterized in that a covering member having air permeability is interposed therebetween.

The present invention also provides a cleaner body having a dust collecting chamber at the front and a motor chamber at the rear, an exhaust port formed at the rear surface of the cleaner body, and a cleaner body corresponding to the exhaust port. An exhaust cover detachably disposed on the exhaust port, and an exhaust filter disposed between the exhaust port and the exhaust cover, wherein the exhaust filter is thermoplastically bonded in a state where the exhaust filter is bent into a pleated shape. In addition to a member held by a member, a covering member having air permeability is provided between the adhesive member application side surface of the exhaust filter and an exhaust port or an exhaust cover of the cleaner body.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the drawings.

A cleaner body 1 comprises a lower case 2, an upper case 3, and a dust collecting cover 4 rotatably disposed on the upper case 3 and covering the front of the lower case 2 so as to be openable and closable. Dust bag 5
And a motor chamber 8 for accommodating an electric blower 7 at the rear.

Reference numeral 9 denotes a suction port formed in the front portion of the cleaner body 1 and communicating with the dust collecting chamber 6. A bellows hose (not shown) is detachably connected to the suction port 9. Reference numeral 10 denotes a primary filter disposed on a partition wall 11 between the dust collection chamber 6 and the motor room 8.

Reference numeral 12 denotes a substrate storage chamber formed above the motor chamber 8, and a control board 13 for controlling the motor 7 is stored therein.

An exhaust plate 14 is provided integrally with the rear surface of the cleaner main body 1 and has an exhaust port 15. A secondary filter 16 is disposed inside the exhaust plate 14 inside the cleaner main body 1. Reference numeral 17 denotes a long hole-shaped engaging hole formed at a lower end portion of the exhaust plate 14, and a lower end of an exhaust cover * to be described later is engaged therewith.

Reference numeral 18 denotes an exhaust cover disposed on the exhaust downstream side of the exhaust plate 14, and an exhaust slit 19 substantially corresponding to the exhaust port 15 of the exhaust plate 14 is formed. Has an engaging claw 21 which is engaged with a locking hole 20 formed on the rear surface of the upper case 3 and a lower end which is engaged with an engaging hole 17 of the exhaust plate 14. An engaging portion 22 is formed.

The engagement relationship between the engagement portion 22 of the exhaust cover 18 and the engagement hole 17 of the exhaust plate 14 is shown in FIG.
18 When the engaging claw 21 at the upper end is removed from the engaging hole 20 of the upper case 3 and the exhaust cover 14 is rotated around the engaging portion 17 as a fulcrum,
The end of the engaging portion 17 interferes with the opening edge of the locking hole 17 of the exhaust plate 14,
The exhaust cover 18 is held with its upper end open, and when a load is further applied to the exhaust cover 18, the exhaust cover 18 comes off the engagement hole 17 of the exhaust plate 14.

An exhaust filter 23 is sandwiched between the exhaust plate 14 and the exhaust cover 18. The exhaust filter 23 is
Bleed non-woven fabric etc. into a pleated shape,
On one side of the pleats, the adhesive resin 24 is applied in a direction perpendicular to the direction of the pleats in the direction perpendicular to the bending direction of the pleats. I have.

The bonding resin 24 has thermoplasticity, a softening temperature of about 50 ° C., and softens at a relatively low temperature, so that workability in processing the exhaust filter 23 is good and cost is reduced. Can be suppressed.

Reference numeral 25 denotes a covering member made of a relatively coarse nonwoven fabric and covering the exhaust filter 23. The outer peripheral portion of the exhaust filter 23 is thermally welded so as to cover the entire surface of the exhaust filter 23.

According to the above configuration, by processing the exhaust filter 23 into a pleated shape, the exhaust area is increased and the exhaust efficiency is improved.

During cleaning, the air discharged from the exhaust port 15 of the cleaner body 1 is heated by the heat of the electric blower 7, so that the adhesive resin 24 of the exhaust filter 23 is easily melted. Since the filter 23 is covered with the covering member 25, if the bonding resin 24 is softened, the covering member
25 and filter 23 are bonded.

Therefore, when the user takes out the filter 23 in order to confirm the replacement time of the filter 23, when the softened adhesive member 25 adheres to the exhaust plate 14 or the exhaust cover 18, the adhesive member 24 The filter 23 does not come off, and the pleats are not biased when the filter 23 is disposed again, so that a decrease in exhaust efficiency can be prevented.

As described above, it is possible to use a resin having a relatively low softening temperature as the bonding resin 24, and the cost can be reduced.

[0023]

According to the first aspect of the present invention, the filter is bent in a pleated shape, so that the exhaust area can be increased and the exhaust efficiency can be improved. By interposing the covering member, even if the adhesive that holds the pleats softens due to the exhaust heat, it will not adhere to the vacuum cleaner case and come off the exhaust filter, preventing a decrease in exhaust efficiency due to uneven pleats. it can.

According to the second aspect of the present invention, the filter is bent in a pleated shape, so that the exhaust area can be increased and the exhaust efficiency can be improved. By interposing a covering member between the two, even if the adhesive that holds the pleats softens due to the exhaust heat, it does not come off the exhaust filter by adhering to the vacuum cleaner body case, and the exhaust efficiency due to uneven pleats etc. Can be prevented,
By removing the exhaust cover from the cleaner body, the exhaust filter can be replaced and the usability can be improved.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of a vacuum cleaner showing an embodiment of the present invention.

FIG. 2 is a plan view of the exhaust filter.

FIG. 3 is an enlarged sectional view of the main part.

FIG. 4 is an enlarged sectional view of a main part of the cleaner body.

FIG. 5 is an enlarged sectional view of a main part of the main body of the vacuum cleaner with an exhaust cover opened.

FIG. 6 is a top view of the cleaner body.

FIG. 7 is a side view of the same.

FIG. 8 is a rear view of the same.

FIG. 9 is a plan view of the exhaust plate.

FIG. 10 is a sectional view of the exhaust plate.

FIG. 11 is a plan view of the exhaust cover.

FIG. 12 is a side view of the same.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Vacuum cleaner main body 6 Dust collection room 8 Motor room 15 Exhaust port 18 Exhaust cover 23 Exhaust filter 24 Adhesive member 25 Coating member

Claims (2)

[Claims] 1. A cleaner body having a dust collecting chamber in the front and a motor chamber in the rear, an exhaust port formed in a rear surface of the cleaner body, and an exhaust filter disposed in the exhaust port. In a state where the exhaust filter is bent into a pleated shape,
A vacuum cleaner, wherein the vacuum cleaner is held by a bonding member having a thermoplastic property, and further has a covering member having air permeability interposed between the bonding member application side surface of the exhaust filter and an exhaust port of the cleaner body. 2. A cleaner main body having a dust collecting chamber in the front and a motor chamber in the rear, an exhaust port formed in the rear surface of the cleaner main body, and a detachable / removable body corresponding to the exhaust port. An exhaust cover is provided, and an exhaust filter is provided between the exhaust port and the exhaust cover. The exhaust filter is bent in a pleated shape and held by a thermoplastic adhesive member. A vacuum cleaner further comprising a covering member having air permeability between the adhesive member application side surface of the exhaust filter and an exhaust port or an exhaust cover of the cleaner body.