JP2005177428A - Suction nozzle for suction type cleaner - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a suction nozzle for a suction type cleaner having a blowout nozzle, by which a high cleaning effect is obtained with a simple structure. <P>SOLUTION: Dust stuck and fixed onto a surface 20 of a cleaned object is stirred-up by the air which is discharged from a gas discharge machine 13, passes through a blowout hose 13a, and is blown out from the blowout nozzle 11b toward the surface 20 of the cleaned object. The dust is enclosed so as to be sucked by an air suction machine 12 through a suction hose 12a, by excluding the parts of the blowout nozzle 11b and an opening surface 11a. The blowout nozzle 11b is formed to be a thin and long tubular shape and has flexibility to be strongly rocked with the root as a base point when the air passes through the inner part of the nozzle 11b. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to an improvement of a suction nozzle of a suction-type vacuum cleaner that is configured such that air is blown toward a surface to be cleaned and the blown air is sucked together with dust.

  Conventionally, there are suction nozzles of suction type vacuum cleaners in which air is blown into the inside, and as an effect, dust is blown away by blowing of the pressurized air. It is mentioned that the removal effect is increased. As for this method, if two extreme methods are mentioned, a gas discharge machine such as a compressor for supplying air for ejection is provided separately from the main body, and the exhaust of the gas suction machine is increased by a compressor etc. However, there are some which are returned to the ejection nozzle as they are, and various types including those in the middle have been proposed, each having advantages and disadvantages.

However, the blowout nozzle is provided with a brush that rotates with friction when air is blown at the peripheral portion of the suction nozzle (see, for example, Patent Document 1) and the suction nozzle moves on the surface to be cleaned. One (for example, see Patent Document 2), one blow nozzle provided in the vicinity of the center in a hemispherical suction nozzle (for example, see Patent Document 3) Many in one central row of elongated rectangular covers Each of which is elongated and has a brush row and suction ports provided on both sides (see, for example, Patent Document 4), and a fan for air blowing rotated by a motor in each suction nozzle. And some with brushes (see, for example, Patent Documents 5 and 6), but some are too simple and cannot be moved along the surface to be cleaned. It may not result is can not expect too much, others, but might effect is, packed with a lot of parts in a narrow space, or only structurally complex.
Japanese Patent Laid-Open No. 2001-169973 (FIG. 1) JP 2002-282177 A (FIGS. 1 and 5) Japanese Utility Model Publication No. 5-95451 (FIG. 2) Japanese Patent Laid-Open No. 2002-2231992 (FIG. 2) JP-A-9-51865 (Claim 1 and FIG. 1) JP-A-10-173 (Claim 1 and FIG. 1)

  In view of the above, an object of the present invention is to provide a suction nozzle of a suction cleaner with a blow-off nozzle that has a simple structure and a high cleaning effect in order to eliminate the above-described drawbacks of the prior art.

In order to achieve the above object, the suction nozzle of the suction type vacuum cleaner according to the first aspect of the present invention is discharged from the gas discharge machine, and is blown out from the blow nozzle toward the surface to be cleaned through the blow hose. Except for the opening surface facing the surface to be cleaned so that the dust adhering to or sticking to the surface to be cleaned is disturbed by the air, generates dust, and is sucked by the gas suction device through the suction hose. Encircling the blowing nozzle,
The blow-out nozzles 11b, 111b, and 211b are formed in an elongated tubular shape, and have flexibility so as to vibrate violently with the root as a base point when air passes through the inside.

  In the invention of claim 2, in addition to the configuration of the invention of claim 1, the blowout nozzles 111b and 211b have the opening surfaces 111a and 211a close to or in contact with the surface 20 to be cleaned, When the air is ejected, it vibrates violently and has a length enough to strike and rub the surface 20 to be cleaned.

  In addition to the configuration of the first or second invention, the invention of claim 3 includes a suction cup 211e that is adsorbed and fixed to the surface 20 to be cleaned around the opening surface 211a.

  As described above, according to the first aspect of the present invention, the dust adhering to or adhering to the surface 20 to be cleaned is disturbed and generates dust, so that the suction nozzles 11, 111, 211 are more in comparison with the fixed blowing nozzle. Even if it is not moved back and forth and right and left along the surface 20 to be cleaned, it is possible to effectively clean the dust in the surface 20 to be cleaned covered thereby.

  According to the invention of claim 2, in addition to the effect of the invention of claim 1, the surface 20 to be cleaned is vigorously struck and rubbed by the blowout nozzles 111 b and 211 b swaying violently by the ejection of air, The dust adhering to the surface 20 to be cleaned is also peeled off to generate dust and can be easily cleaned.

  According to the invention of claim 3, in addition to the effect of the invention of claim 1 or 2, with respect to the cleaning target surface 20 at a high place where it is difficult to support a large and heavy suction nozzle such as a ceiling surface or a wall. However, it can be easily supported by the suction cup 211e, the burden of supporting the suction nozzle is remarkably reduced, and the work becomes easier.

  The suction nozzle of the suction type vacuum cleaner according to the first best mode of the present invention will be described with reference to FIG. 1. A blowout nozzle 11b protrudes into the suction nozzle 11, and further from the blowout nozzle to the surface 20 to be cleaned. The dust adhering to or adhering to the surface 20 to be cleaned is disturbed by the air jetted in the direction, is generated, and is sucked by the suction nozzle 11, wherein the blow nozzle 11 b Is surrounded by the suction nozzle 11 except for the opening portion of the front end opening surface 11a. In particular, the blowout nozzle 11b is formed in an elongated tubular shape, and air passes through the inside thereof. It is characterized in that it is made of a material having excellent flexibility such as plastic so as to swing violently with the base 11d as a base point.

  Supplementally, a suction fan is normally used as the gas suction device 12, but an ejector or a vacuum pump may be used. Further, 10 is a suction type vacuum cleaner incorporating the suction nozzle 11 of the present invention, 11c is a header that distributes pressurized air to a plurality of blowing nozzles 11b, 11k is a header that collects the sucked air, and 12a is a suction nozzle. 11 is a suction hose that guides air from 11 to the gas suction machine 12, 12b is a filter that captures dust, 13 is a gas discharger such as a compressor, and 13a is a blowout hose that sends air to the header 11c. In addition, there is no limitation in particular about the external shape of this suction nozzle 11, Any of cones (or frustums) shape, such as a cone of various cross sections, a pyramid, a box shape, or a hemisphere, may be sufficient.

  The operation will be described. The blowout nozzle 11b is vigorously shaken by the air passing through the inside, and the blowout position and direction of the air to the surface 20 to be cleaned changes drastically despite the simple structure. For this reason, the tip opening surface 11a of the suction nozzle 11 is brought into contact with the surface 20 to be cleaned such as a wall, or moved close to the surface leaving a slight gap, and if left still for a while, the surface 20 to be cleaned is reciprocated. Even if it does not move, air is blown to the entire surface covered with the blow nozzle 11b, and the dust adhering to or sticking to the surface is disturbed to generate dust. Therefore, the dust in the surface 20 to be cleaned, which is covered by the suction nozzle 11, can be effectively cleaned in a short time as compared with a conventional one having a fixed blowing nozzle.

  In addition, when used for cleaning over a wide range, for example, if connection pipes of the blowing hose 13a are provided at a plurality of locations of the pressurized air piping laid along the wall surface of the building, a gas discharger (not shown) ) To near the surface to be cleaned is not required to be pulled, and workability is significantly improved.

  The second best mode of the present invention will be described with reference to FIG. 2. The blowout nozzle 111 b is “projecting from the tip opening surface 111 a of the suction nozzle 111, and the tip opening surface 111 a contacts the surface 20 to be cleaned. Or when in close proximity, it bends and touches it, and when air is blown out, it sways violently and has a length enough to strike and rub against the surface 20 to be cleaned. The configuration is the same as that of the first best mode. For the same component, as shown in FIG. 2, 1 is added to the head of the component symbol of the first best mode consisting of a two-digit number and an alphabetic character.

  The action will be described. In addition to the action and effect of the first best mode, the surface 20 to be cleaned is struck and rubbed vigorously by the blowout nozzle 111b that sways violently with the blown out air. Even the dust adhered to the surface 20 is also peeled off, generates dust, and can be easily cleaned in a short time even with a fixed substance that has been difficult to clean.

A first best mode example, a second best mode example having the same specifications except for the blow nozzle protruding from the center of the hemispherical surface toward the opening surface of the hemispherical suction nozzle having a diameter of 160 mm, For the conventional example (fixed air blowing nozzle), an experiment was conducted to remove chalk applied to a concrete wall under the same conditions of wind pressure and air volume. As a result, it takes 45 seconds for the first best mode model and 30 seconds for the second best mode model, compared to 2 minutes for the conventional model to be completely removed. There wasn't.
The suction devices and air compressors used are as follows.
1) Vacuum cleaner (manufactured by Nippon Vacuum Co., Ltd.)
・ Model: NS-104 ・ Vacuum pressure: 19.6 kPa Air volume: 2.4 m ³ / min
2) Compressor (manufactured by TOSHIBA)
・ Model: SP106-75T8 Maximum pressure: 0.97 Mpa Air volume: 855 L / min

  Further, the third best embodiment will be described with reference to FIGS. 3 and 4. “A high negative pressure is provided between the suction opening 211 and the surface 20 to be cleaned by a gas suction device as will be described later. The basic configuration is the same as that of the second best mode example except that it includes a suction cup 211e that is pressurized and thereby attracted and fixed to the surface 20 to be cleaned. Therefore, for the same type of component, as shown in FIG. 3, the leading number of the component symbol of the second best mode consisting of a two-digit number and an alphabetic character is replaced with 2.

  For supplementary explanation, in order to generate a high negative pressure in the suction cup 211e, although not shown in the drawings, a gas suction device is provided separately or isolated from the central normal suction portion, for example, FIG. Between the filter 12b and the gas suction machine 12, a portion having the highest negative pressure and a suction cup 211e are connected by a hose. Reference numeral 211f denotes a suction nozzle. In FIG. 4, the suction nozzle 211 has a rectangular cross section, but is not limited thereto, and may be a circle as described above. Furthermore, the suction nozzle 211 may be made of, for example, an airtight chemical fiber sheet for weight reduction, and a brush (not shown) may be attached to the edge of the tip so as to reduce the flow of air. preferable. In the drawing, the suction cup 211e is circular, but it may be a frame-like one attached to the entire circumference of the tip opening surface 211a.

  Explaining the action, it can be easily supported and fixed not only on the floor surface but also on the surface 20 to be cleaned at a high place where it was difficult to support a large and heavy suction nozzle, such as a ceiling surface or a wall. The burden of supporting the suction nozzle is remarkably reduced, and the work becomes easier. Note that the blow nozzle may be made shorter and configured not to contact the surface 20 to be cleaned, like the first best mode.

It is sectional drawing which shows the suction nozzle of the suction type vacuum cleaner concerning the 1st best form of this invention. It is sectional drawing which shows the suction nozzle of the suction type vacuum cleaner concerning the 2nd best form of this invention. It is sectional drawing which shows the suction nozzle of the suction type vacuum cleaner concerning the 3rd best form of this invention. FIG. 4 is a perspective view of FIG. 3.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Suction type vacuum cleaner 11 Suction nozzle 11a Tip opening surface 11b Outlet nozzle 11c Header 11d Base 11k Header 12a Suction hose 12b Filter 13 Gas discharge machine 13a Outlet hose 111 Suction nozzle 111a End opening surface 111b Outlet nozzle 111c Header 111k Header 211 Suction nozzle 211a Front opening surface 211b Blow nozzle 211c Header 211e Suction cup 211f Suction cup nozzle 211k Header 12 Gas suction machine 20 Surface to be removed

Claims (3)

Dust adhering or adhering to the surface to be cleaned is disturbed and generated by the air discharged from the gas discharger, passed through the blowing hose, and blown from the blowing nozzle toward the surface to be cleaned. A suction nozzle of a suction type vacuum cleaner that surrounds the blowout nozzle, except for an opening surface facing the surface to be cleaned, so that it is sucked by a gas suction machine through a suction hose,
The blowout nozzles (11b, 111b, 211b) are formed in an elongated tubular shape, and are flexible so that they can vibrate violently from their roots when air passes through them. The suction nozzle of the suction-type vacuum cleaner. The blowing nozzles (111b, 211b) sway violently when air is blown out with the open surfaces (111a, 211a) approaching or in contact with the surface (20) to be cleaned, and the cleaning The suction nozzle of a suction type vacuum cleaner according to claim 1, characterized in that it has a length enough to strike and rub the surface (20) of the object vigorously. The suction-type vacuum cleaner suction according to claim 1 or 2, further comprising a suction cup (211e) that is sucked and fixed to the surface (20) to be cleaned around the opening surface (211a). nozzle.

Images