JPH06105764A - Upright type vacuum cleaner - Google Patents

Abstract

PURPOSE:To prevent a clear protection tool from surface flaw or breakage resulting from collision of foreign matter and preclude risk of deterioration of the sensor sensitivity through cleaning off contaminants from the protection tool. CONSTITUTION:A vacuum cleaner includes the first cylinder 12, which is for mounting a paper sack to the suction part 11 and which is fixed to the body of a dust collecting part, and the second cylinder rotatable 13 whose one end is connected with a suction hose 10 and other end is put in the first cylinder 12, and a clear protection tool 26 installed at a light emitting element 15 and a light receiving element 16 is protruded from the inner wall surface of the first cylinder, wherein the second cylinder end face put in the first cylinder 12 is positioned just in front of the protection tool 26, and its protruded oversurface is arranged not protruding from the inner wall surface of the second cylinder 13. A cleaning piece 57 for cleaning the protection tool 26 is installed at one end of the second cylinder 13 rotatable.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an upright type vacuum cleaner used for industrial or household use.

[0002]

2. Description of the Related Art In recent years, various detection devices for detecting dust from the floor have been introduced into electric vacuum cleaners.

An electric vacuum cleaner provided with a conventional dust detection device will be described below. In FIG. 8, 71 is a handle part and 72 is a handle. 73 is a power cord.
74 is an upper cover, and 75 is a dust collecting part lid. 76
Is a nozzle portion and 77 is a floor nozzle. Reference numeral 78 is a dust collecting unit main body. 79 is an electric blower. Reference numeral 80 denotes an air intake portion, a paper bag 92 can be attached to the cylindrical body 81, which is bent at about 90 degrees and has a lid 82 that can be opened and closed. Further, 93 is a hose that connects the floor nozzle 77 and the intake portion 80, and is detachable from the floor nozzle 77 and has a structure capable of connecting attachments. Reference numeral 84 is a light receiving element. Reference numeral 83 is a light emitting element, and 85 is a transparent protector attached to the light emitting element 83 and the light receiving element 84. 8
A belt 7 transmits the rotation of the electric blower 79 to the floor nozzle 77. 87 is a lead wire A. Reference numeral 88 denotes a printed board on which the light emitting element 83 is mounted. Reference numeral 89 is a back pig attached to the floor nozzle 77. Reference numeral 90 is a metal plate protector that is fixed to the rear cover 89 with screws.
Reference numeral 91 is a lead wire B.

The operation of the upright type vacuum cleaner configured as described above will be described below. First, the air in the dust collecting unit main body 78 is discharged to the outside by the electric blower 79, and the dust lifted up by the floor nozzle 77 is passed through the hose 93 and the air intake unit 80 into the dust collecting unit main body 78. To collect. At this time, the light emitted from the light emitting element 83 attached to the cylinder 81 of the air intake portion 80 is blocked each time the dust passes, and the amount of dust is detected from the amount of change in the light reaching the light receiving element 83.

[0005]

In the above conventional structure, the light emitting element and the light receiving element are protected for the purpose of cleaning the fibrous cotton dust sucked by the suction force by touching the transparent protective equipment. A transparent protective cover is attached to the inner wall of the hose so that it protrudes. However, since the shape of this protrusion is a substantially cylindrical protrusion, the protrusion is 1 m.
Despite being set to m or less, sand, soil, etc. hits it completely and damages the transparent protective cover, or because fibers, soil, etc. containing moisture adhere, block the light of the sensor part, There was a problem that the sensor sensitivity became poor.

Therefore, the first object of the present invention is to prevent the transparent protective cover from being hit by stones, sand, metal objects, etc. and damaging or damaging the surface of the protective cover.

Further, according to the present invention, the dirt of the sensor portion to which the fiber containing water, soil and the like adheres is automatically cleaned,
The second purpose is to prevent deterioration of sensor sensitivity.

[0008]

In order to achieve the first object, the vacuum cleaner of the present invention has a first cylinder body for mounting a paper bag in the air intake section fixed to the main body of the dust collecting section, and further has one end A transparent second protector provided on the light emitting element and the light receiving element is provided on the inner wall surface of the first cylinder, which is connected to the intake hose and has the rotatable second cylinder contained in the first cylinder at the other end. In the configuration projecting in a convex shape from the above, the end face of the second tubular body included in the first tubular body is positioned almost immediately before the transparent protective equipment, and the upper surface of the convex portion of the transparent protective equipment is the second tubular body. It has a structure that does not protrude from the inner wall surface.

Further, in order to achieve the second object, the vacuum cleaner of the present invention cleans the transparent protector provided on the light emitting element and the light receiving element at one end of the rotatable second cylindrical body. It has a configuration in which the cleaning body is attached.

[0010]

With this first structure, the stones, sand, metal objects, etc. scooped up by the floor nozzle do not come into contact with the transparent protective equipment, and scratches can be prevented. It is difficult for fibrous cotton dust to adhere.

Further, according to the second structure, a cleaning member for cleaning the transparent protector provided on the light emitting element and the light receiving element is attached to one end of the second cylindrical body, so that the user can clean the attachment with the attachment. When this happens, the suction part rotates due to the cleaning operation, and the second cylinder also rotates accordingly, so that the cleaning body automatically cleans the transparent protective equipment to which the fibrous cotton dust and the like adhere. . Therefore, it is possible to always perform cleaning without lowering the sensor sensitivity.

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. 1 and 2 and 3, reference numeral 1 is a handle portion, and 2 is a handle. 3 is a power cord.
Reference numeral 4 is an upper cover, and 5 is a dust collecting portion lid. 6 is a nozzle part and 7 is a floor nozzle. Reference numeral 8 is a dust collector main body. 9 is an electric blower. 11 is an intake part, and 10
Is a hose that connects the nozzle portion 6 and the intake portion 11, and is detachable from the nozzle portion 6 and has a structure capable of connecting attachments. Further, the intake section 11 includes the first cylinder 12 and the second cylinder 12.
It is composed of a tubular body 13, a paper bag can be attached to the first tubular body 12, the second tubular body 13 is bent at about 90 degrees, and has a lid 14 that can be opened and closed. And second
The outer diameter of the cylindrical body 13 is smaller than the inner diameter of the first cylindrical body 12, and one end of the second cylindrical body 13 is included in the first cylindrical body 12 and provided in the light emitting element and the light receiving element. The transparent protective device is positioned substantially in front of the transparent protective device so that the upper surface of the convex portion of the transparent protective device does not protrude from the inner wall surface of the second tubular body.

Further, by providing the lip 26 between the air intake portion 11 and the dust collecting portion main body 8, air leakage from the air inlet 11 is eliminated. Reference numeral 15 is a light emitting element, and 16 is a light receiving element. Reference numeral 17 is a belt for transmitting the rotation of the electric blower 9 to the nozzle. 18 is a lead wire A. Reference numeral 19 denotes a printed board on which a light emitting element 20 is mounted. Two
Reference numeral 2 is a rear pig attached to the nozzle portion 6. 23
Is a metal plate protector that is fixed to the rear cover 22 with screws. 24 is a lead wire B. 25 is a paper bag. 26
Is a transparent protector attached to the light emitting element 15 and the light receiving element 16.

The operation of the upright type vacuum cleaner configured as described above will be described below. First, the air in the dust collecting unit main body 8 is discharged to the outside by the electric blower 9.
The dust lifted up by the floor nozzle 7 is passed through the hose 10 and the suction portion 11 into the dust collecting portion main body 8 and collected in the paper bag 25. At this time, the light emitted from the light emitting element 15 attached to the first cylindrical body 12 of the air intake unit 11 is blocked every time the dust passes while reaching the light receiving element 16, and the amount of dust is detected.

However, the light emitting element 15 and the light receiving element 1
The light emitted from the light-emitting element is blocked by the adhesion of sand, soil, etc. and the adhesion of moisture-containing fibers, soil, etc. to the protective equipment that protects 6 There may be cases where the size and number are not accurately determined. In this case, the dust collecting unit lid 5 is opened, the paper bag 25 is removed, and cleaning is performed from the first cylinder 12 side of the air intake unit 11, but the second cylinder 13 is used.
From the side, if the lid 14 locked to the second cylinder is opened, cleaning can be performed easily without removing the dust collecting portion lid 5 and the paper bag 25.

Further, in a state where the paper bag 25 is filled with the fibrous dust and the light emitting element 15 and the light receiving element 16 of the first cylindrical body 12 of the air intake portion 11 are completely filled, the light to the light receiving element 16 is always supplied. It will be blocked, and it will be possible to accurately notify the sensor when cleaning the sensor. When the hose 10 is clogged with foreign matter, the light emitted from the light emitting element 15 reaches the light receiving element 16 at all times, and there is no dust.
This can be similarly judged and displayed.

Next, in FIG. 4, 27 is a protector for protecting the light receiving element from external light, 28 is a printed circuit board B, 29 is a printed circuit board C, to which the light emitting element 15 and the light receiving element 16 are attached. Has been. In this configuration, the hose 10 is shown by a broken line and is connected from the nozzle portion 6 to the intake portion 11 and shows the flow of air at this time.

Since the stones, sand, metal objects, etc., which have been lifted up by the floor nozzle 7 are relatively heavy, they are caught in the turbulent flow generated by the step between the first cylinder 12 and the second cylinder 13. Without being sucked into the paper bag 25.

Of course, although dust such as stones, sand, and metal objects will eventually come into contact with the first cylindrical body 12, the distance between the second cylindrical body 13 and the transparent protector 26 is set short. Therefore, stones, sand, metal objects, etc. do not hit the transparent protector 26, and scratches can be prevented.

Further, by making the step difference between the first cylinder 12 and the second cylinder 13 small, adhesion of fibers, soil, etc. does not occur easily.

Further, when relatively light dust such as fibers is present and the air passage speed is slow, the dust will pass through the surface of the transparent protector 26 and a cleaning effect can be obtained.

Therefore, the decrease in sensor sensitivity can be reduced. A second embodiment of the present invention will be described below with reference to the drawings. In FIGS. 5, 6 and 7,
Reference numeral 31 is a handle portion, and 32 is a handle. 33 is a power cord. Reference numeral 34 is an upper cover, and 35 is a dust collecting portion lid. 36 is a nozzle part and 37 is a floor nozzle. Three
Reference numeral 8 is a dust collector main body. 39 is an electric blower. 63
Is a suction part, and 61 is a hose connecting the nozzle part 36 and the suction part 63, which is detachable from the nozzle part 36 and has a structure capable of connecting an attachment 59. Intake section 6
3 is composed of a first tubular body 42 and a second tubular body 43, a paper bag 45 can be attached to the first tubular body 42, and the second tubular body 43 is bent at about 90 degrees. A lid 44 that is rotatably fixed to the dust body 35 and that can be opened and closed.
have.

Further, by providing the lip 62 between the air intake portion 63 and the dust collecting portion main body 38, leakage of air from the air inlet port 63 is eliminated. Reference numeral 40 is a light emitting element, and 41 is a light receiving element. 56 is a light emitting element 40 and a light receiving element 41.
It is a transparent protector attached to the.

Further, one end of the second cylindrical body 43 has the first cylindrical body 4
2 and is located almost immediately before the transparent protector 56 provided on the light emitting element 40 and the light receiving element 41, and the upper surface of the convex portion of the transparent protector 56 does not protrude from the inner wall surface of the second cylindrical body. It has such a configuration. 47 is an electric blower 3
A belt for transmitting the rotation of 9 to the nozzle. 48 is a lead wire A. 49 is a printed circuit board on which the light emitting element 40 is mounted. Reference numeral 52 is a rear pig attached to the nozzle portion 56. Reference numeral 53 is a metal plate protector which is fixed to the rear lid 52 with screws. Reference numeral 54 is a lead wire B. Reference numeral 57 is a cleaning material attached to one end of the second tubular body 43 to a fixing portion 58 integrated with the second tubular body 43 with an adhesive or the like, and felt or sponge is considered to be a suitable material.

A fixed portion 58 to which the cleaning material 57 is attached
Is placed at a position where light from the light emitting element 40 is not blocked when the hose 61 is attached to the nozzle portion when cleaning the floor surface. The attached attachment 59 can be attached to and detached from the tip of the hose 61, and the user can attach the nozzle portion 36 to the nozzle portion 36.
The hose 60 can be pulled out further and cleaned using the attachment.

The operation of the upright type vacuum cleaner configured as described above will be described with reference to FIGS. 5 and 6.

When the user cleans other than the floor surface, the hose 31 is detached from the nozzle portion 36, and an attached attachment is attached to the tip of the hose 31 for cleaning. By this operation, the intake portion 63 rotates rightward and leftward. At this time, since the second tubular body 43 also rotates at the same time, the cleaning body 57 attached to the tip end of the second tubular body 43 automatically removes the transparent protective equipment 56 to which the fibrous cotton dust and the like adhere when cleaning the floor surface. Will be cleaned.

Even when the cleaning material becomes dirty, it can be easily replaced, and cleaning can always be carried out without causing a decrease in sensor sensitivity.

[0029]

As described above, according to the first aspect of the present invention, one end of the second cylindrical body is enclosed in the first cylindrical body, and a transparent protector provided on the light emitting element and the light receiving element is provided. It is positioned almost immediately before and the transparent protective equipment is configured so that the upper surface of the convex portion does not protrude from the inner wall surface of the second cylinder, so that stones, sand, metal objects, etc. lifted up by the floor nozzle are transparently protected. It does not hit the tool and can prevent scratches. Also, fibrous cotton dust and the like are less likely to adhere.

According to the second aspect of the invention, a cleaning member for cleaning the transparent protector provided on the light emitting element and the light receiving element is attached to one end of the second cylindrical body, so that the user can clean the attachment with the attachment. When the cleaning is performed, the suction part rotates due to the cleaning operation, and the second cylinder also rotates accordingly, so that the cleaning body automatically cleans the transparent protective equipment on which fibrous cotton dust and the like are attached. become. Therefore, it is possible to always perform cleaning without lowering the sensor sensitivity.

[Brief description of drawings]

FIG. 1 is a perspective view of an upright type vacuum cleaner according to a first embodiment of the present invention.

FIG. 2 is a vertical cross-sectional view of the upright type vacuum cleaner in the embodiment.

FIG. 3 is a side sectional view of an essential part of the upright type vacuum cleaner in the embodiment.

FIG. 4 is a front sectional view of an essential part of the upright type vacuum cleaner in the embodiment.

FIG. 5 is a vertical sectional view of an essential part of an upright type vacuum cleaner according to a second embodiment of the present invention.

FIG. 6 is a front sectional view of an essential part of the upright type vacuum cleaner in the embodiment.

FIG. 7 is a side sectional view of an essential part of the upright type vacuum cleaner in the embodiment.

FIG. 8 is a vertical sectional view of a conventional upright type vacuum cleaner.

[Explanation of symbols]

 7 Floor Nozzle 8 Dust Collection Body 9 Electric Blower 12 First Cylinder 13 Second Cylinder

Claims (2)

[Claims] 1. A floor nozzle and a dust collecting section main body having the floor nozzle below and including an electric blower, and a hose connecting the nozzle and the suction section of the dust collecting section main body. A first cylinder for mounting the paper bag is fixed to the dust collecting unit body, and further has one end connected to the intake hose and the other end provided with a rotatable second cylinder contained in the first cylinder. The light emitting element and the light receiving element are arranged in the first cylindrical body, and the transparent protector provided on the light emitting element and the light receiving element is protruded from the inner wall surface of the first cylindrical body in a convex shape. The first of the body
An upright characterized in that the end face contained in the tubular body is positioned substantially in front of the transparent protector, and the upper surface of the convex portion of the transparent protector does not protrude from the inner wall surface of the second tubular body. Type vacuum cleaner. 2. A cleaning body for cleaning transparent protectors provided on the light emitting element and the light receiving element is attached to one end of a second cylindrical body contained in the first cylindrical body. The upright type vacuum cleaner according to claim 1.