JP2000166826A - Vacuum cleaner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vacuum cleaner which is provided with a rotary brush and has an improved dust collecting performance, without increasing suction power. SOLUTION: This vacuum cleaner comprises a main body 1 which includes therein a motor-operated blower 2, a suction port 4 opened in a bottom side of the body 1 to draw dust, a suction air pot 8 which is provided in the suction port 4 and communicates with the suction side of the blower 2, a rotary brush 13 having a dust scraper body, and a guide rib 18 which is provided in the port 4 facing opposite the upper part of the periphery of the brush 13 so as to be inclined toward the port 8. The guide rib 18 imparts force on dust in the form of cotton such as threadlike dust, cotton dust, etc., wound around the outer periphery of the brush 13 to send the dust into the port 8.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vacuum cleaner having a rotary brush.

[0002]

2. Description of the Related Art A conventional vacuum cleaner will be described with reference to FIGS. A dust collecting chamber 53 having a dust collecting bag 52 is arranged on the upper suction side of the electric blower 51, and the dust collecting chamber 53 and the floor nozzle 54 are connected by a hose 55. The floor nozzle 54 has a suction port 5 having an open bottom surface for sucking dust.
6, a rotary brush 57 is provided inside the suction port 56.
Is rotatably mounted. Reference numeral 58 denotes a dust scraping body made of hair, lip, or the like provided on the peripheral surface of the rotating brush 57. With the electric blower 51, dust is removed from the floor nozzle 54.
The air is sucked together with the air from the suction port 56 on the bottom surface, rises inside the hose 55 against gravity, and the dust is filtered by the dust bag 52 and captured inside the dust bag 52. The sucked air passes through the dust bag 52, passes through the inside of the electric blower 51, and is discharged from the exhaust hole 60.

[0003]

However, in the conventional vacuum cleaner having the rotating brush 57, lint and cotton dust on the floor surface are repelled by the dust scraping body 58 of the rotating brush 57. The dust scraping body 58 is knocked down by the repelled dust, and the dust scraping body 58 does not come into contact with the floor surface, thereby deteriorating the dust collecting performance of the vacuum cleaner, and the dust connected to the floor nozzle 54. In order to efficiently guide the nozzle to the side 55, a method of increasing the suction force may be considered. However, in this method, the size of the electric blower 51 is increased, and the floor nozzle 54 is sucked on the floor surface, and the operability of the floor nozzle 54 is reduced. Had the problem of doing so.

An object of the present invention is to solve the above-mentioned conventional problems, and an object of the present invention is to provide a vacuum cleaner having excellent dust collecting properties and good operability.

[0005]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a suction opening opened on the bottom surface for sucking dust, a rotary cleaning member rotatably mounted inside the suction opening,
A suction port provided in the suction port, and an electric blower connected to the suction port by a suction side, and a guide rib inclined in the circumferential direction of the cleaning body and on the suction port side in the suction port; The guide ribs apply a component force to yarn dust, cotton dust and the like wrapped around the outer periphery of the brush dusting body, and send the dust to the suction port, thereby improving the dust collecting performance.

[0006]

BEST MODE FOR CARRYING OUT THE INVENTION
A suction port opened on the bottom surface for sucking dust, a rotary cleaning body rotatably mounted inside the suction port, a suction port provided in the suction port, and an electric blower with a suction side communicating with the suction port. In the suction port, the vacuum cleaner is provided with a guide rib inclined in the circumferential direction of the rotary cleaning body and on the suction port side, so that dust such as lint and cotton litter wrapped around the outer periphery of the dust scraper can be removed. The dust can be efficiently moved along the guide ribs to the suction port to improve the dust collection efficiency.

According to a second aspect of the present invention, there is provided the electric vacuum cleaner according to the first aspect, wherein the suction air flowing along the axial direction of the rotating brush flows through the inside of the suction port, so that the yarn wound around the outer periphery of the dust scraping body. The suction air blows on garbage, cotton garbage, etc., thereby promoting movement to the suction port and improving dust collection efficiency.

According to the third aspect of the present invention, since the vacuum cleaner according to the first aspect is provided with an exhaust port for discharging exhaust gas from the electric blower into the suction port, the exhaust gas leaks from the suction port to the outside. Can be cleaned hygienically, and the exhaust air blows onto the lint and cotton garbage wrapped around the outer periphery of the dust scraping body, further promoting the movement of lint and cotton litter and improving the dust collection performance Can be done.

According to a fourth aspect of the present invention, since the vacuum cleaner according to the third aspect has the exhaust port provided apart from the intake port, the flow of the wind is a flow along the axial direction of the rotating brush. The air flow from the exhaust port to the intake port inside the suction port does not cause turbulence, and the suction air evenly hits the yarn and cotton debris released from the floor, smoothing the movement to the suction port. The dust collection efficiency has been improved.

According to a fifth aspect of the present invention, there is provided the electric vacuum cleaner according to the third aspect, wherein the exhaust ports are positioned at both ends of the rotary brush, and the intake ports are provided at an intermediate portion between the exhaust ports. The distance between the mouth and the intake port is reduced, and the movement distance of the dust is reduced, which reduces the ventilation resistance and improves the dust collection performance.
In addition, it is possible to suppress the exhaust from leaking from the suction port to the outside of the suction port.

According to a sixth aspect of the present invention, there is provided the electric vacuum cleaner according to the third aspect, wherein the suction port is positioned at both ends of the rotary brush, and an exhaust port is provided at an intermediate portion between the suction ports. The distance between the mouth and the intake port is reduced, and the movement distance of the dust is reduced, so that the ventilation resistance is reduced and the dust collection performance can be improved. Further, since the dust collecting ability near the center of the suction port is good, it becomes easy to operate the vacuum cleaner aiming at dust on the floor surface.

[0012]

(Embodiment 1) Hereinafter, embodiments of the present invention will be described.
This will be described with reference to FIGS.

In FIG. 1, reference numeral 1 denotes a main body in which an electric blower 2 is incorporated and an operation handle 3 is mounted, and a suction port 4 having a bottom opening for sucking dust is provided in the front. A filter 5 for filtering dust is disposed on the suction side of the electric blower 2, and the filter 5 is housed in a dust collecting case 6. The dust collecting case 6 is detachably attached to the main body 1. Reference numeral 7 denotes a dust collecting chamber for collecting dust in a space between the dust collecting case 6 and the filter 5, and a dust collecting chamber hole for introducing a suction air flow 9 from the suction port 4 to the suction port 8 into the dust collecting chamber 7. 10 is provided on the side wall of the dust collecting case 6. Reference numeral 11 denotes an exhaust port formed in the main body 1 on the exhaust side of the electric blower 1. Inside the suction port 4, there is a rotary brush (corresponding to a rotary cleaning body) 13 rotatably attached at both ends by rotary brush bearings 12, and the rotary brush 13 is provided with a rotary brush pulley 14 provided therein. Power is transmitted from the rotating brush drive motor 16 via the belt 15 to rotate.

The rotary brush 13 is provided with a band made of a brush or lip made of bristles on its peripheral surface, and these correspond to the dust scraper 17. The dust scraper 17 may be configured by combining a brush and a band.

A plurality of guide ribs 18 are integrally provided inside the suction port 4 (the ceiling) facing the peripheral surface of the top surface of the dust scraping body 17, and the front portion of the guide rib 18 is on the side of the suction port 8. It is provided so as to be inclined. That is, the guide rib 18 is configured such that the front side of the guide rib 18 is inclined toward the intake port 8 with respect to the rotation direction of the rotating brush 13. When the dust scooped up or repelled by the rotating brush 13 moves along the inner wall of the suction port 4, the dust moves forward from the rear of the guide rib 18 and moves along the inclination direction of the guide rib 18. Go. That is, the dust moves to the intake port 8 side.

The operation of the above configuration is as follows. The power from the rotating brush drive motor 16 is transmitted by the rotating brush pulley 14 and the belt 15, the rotating brush 13 rotates in the direction of arrow A, and the dust scraping body 17 causes fine dust on a carpet or floor. Scrap dust such as lint, lint, and cotton litter. The dust released by the dust scraping body 17 is collected by the suction airflow 9 from the suction port 4 through the suction port 8 and the dust collection chamber hole 10 into the dust collection chamber 7. The guide rib 18 moves to the intake port 8 side. Further, dust such as thread dust and cotton dust wrapped around the outer periphery of the dust scraping body 17 of the rotating brush 13 wraps around the dust scraping body 17 and then hits the guide rib 18 to reduce the component force to dust such as thread dust and cotton dust. It moves along the inclination of the working guide rib 18, and after moving through the plurality of guide ribs 18, eventually moves to the suction port 8 and is collected by the suction airflow 9 through the suction port 8 and the dust collection chamber hole 10 into the dust collection chamber 7. The clean exhaust air 19 is exhausted from the exhaust port 11.

In the above embodiment, the case where the rotating brush 13 rotates in the direction of arrow A has been described. However, when the rotating brush 13 rotates in the direction opposite to the direction of arrow A, the rotating brush 13 is separated by the dust scraper 17. It is clear that the front portion of the guide rib 18 may be provided so as to be inclined so as to be on the opposite side to the intake port 8 side in order to move the generated dust to the intake port 8 side by the guide rib 18. (Embodiment 2) Next, a second embodiment of the present invention will be described with reference to FIG.
7 will be described. The same components as those in the first embodiment are denoted by the same reference numerals, and description thereof will be omitted. Exhaust air 20 discharged from the electric blower 1 is blown from the exhaust side of the electric blower 1 to the floor from an exhaust port 21 communicating with the suction port 4. Dust on the floor is blown off by the exhaust air 20 and separated from the floor. Also,
When the rotating brush 13 rotates, the dust scraping body 17
Scrapes out the dust lurking behind the furs on the floor, such as carpets,
The dust is moved to the intake port 8 side by the guide rib 18.
Since the intake port 8 and the exhaust port 21 are provided at both ends of the rotating brush 13, the flow of the wind becomes a flow along the axial direction of the rotating brush 13, thereby further promoting the movement of dust toward the intake port 8. Things.

Dust such as scraped lint and cotton dust is wrapped around the dust scraping body 17.
The airflow flowing from 1 to the intake port 8 forms a dust scraping body 17.
It collides with thread dust and cotton dust wrapped around the outer periphery and promotes movement to the suction portion 8. Further, when it hits the guide rib 18, the component such as thread dust and cotton dust and the like exerts a large force on the dust, and the intake port 8 follows the inclination of the guide rib 18. , The dust collection efficiency is improved and the cleaning time is shortened.

Embodiment 3 Next, a third embodiment of the present invention will be described with reference to FIG. The same components as those in the first embodiment are denoted by the same reference numerals, and description thereof will be omitted.

The difference from the first embodiment is that exhaust ports 21 are provided at the left and right ends of the intake port 4 and the intake port 8 is provided between the exhaust ports 21. As shown by the broken line, the guide rib 18 changes the inclination direction on the left and right sides around the intake port 8. That is, the guide rib 18 is inclined toward the intake port 8.

Next, the operation and action will be described. The exhaust air 20 blown from the two exhaust ports 21 to the floor is
Both circulate to the inner intake port 8, and the intake port 8 and the exhaust port 21
And the distance of movement of dust such as lint and cotton dust is reduced, thereby improving the dust collection performance. In addition, since the exhaust does not leak from the suction port 4 to the outside, it is sanitary. Can be cleaned.

(Embodiment 4) Next, a third embodiment of the present invention will be described with reference to FIG. The same components as those in the first embodiment are denoted by the same reference numerals, and description thereof will be omitted.

The difference from the first embodiment is that intake ports 8 are provided at the left and right ends of the intake port 4, and an exhaust port 21 is provided between the intake ports 8. As shown by the broken line, the guide ribs 18 have different inclination directions on the left and right sides about the exhaust port 21. That is, the guide rib 18 is inclined toward the intake port 8.

Next, the operation and function will be described. The exhaust air 20 blown from the exhaust port 21 at the center of the intake port 4 to the floor is divided into two and circulated to the intake ports 8 at both ends of the intake port 4, respectively. The distance between the suction port 8 and the exhaust port 21 is reduced, and the moving distance of dust such as lint and cotton dust is reduced, so that the dust collection performance can be improved.

Although the stick type vacuum cleaner has been described in each of the above embodiments, the present invention can be applied to an upright, canister type vacuum cleaner and the like.

[0026]

According to the first aspect of the present invention,
A suction port opened on the bottom surface for sucking dust, a rotary cleaning body rotatably mounted inside the suction port, a suction port provided in the suction port, and an electric blower with a suction side communicating with the suction port. Since the vacuum cleaner is provided with a guide rib in the suction port in the circumferential direction of the rotary cleaning body and inclined to the suction port side, dust such as thread dust and cotton dust wrapped around the outer circumference of the rotary brush is applied to the guide rib. It moves smoothly along the suction port to improve the dust collection efficiency and prevents the lint and cotton lint from wrapping around the rotating brush, so that the suction performance is maintained and maintenance is not required.

According to the second aspect of the present invention, the vacuum cleaner according to the first aspect, wherein the suction wind along the axial direction of the rotating brush flows inside the suction port, so that the flow of the wind is rotated. It becomes a flow along the axial direction of the brush, which further promotes the movement of dust toward the intake port, and also scrapes up dust such as lint and cotton dust and wraps it around the dust scraping body. The airflow flowing from the air to the air inlet collides with the lint and cotton garbage wrapped around the outer periphery of the dust-lifting body, and promotes movement to the suction port. The speed at which the air reaches the intake port is increased while following the inclination of the guide ribs, thereby improving the dust collection efficiency and shortening the cleaning time. According to the invention described in claim 3 of the present invention, by providing the vacuum cleaner according to claim 1 or 2 provided with an exhaust port for discharging exhaust gas from the electric blower into the suction port, the exhaust gas flows from the suction port to the outside. Since the exhaust gas does not leak out, it can be cleaned hygienically.

According to the invention of claim 4 of the present invention, by providing the vacuum cleaner of claim 3 in which the exhaust port is provided apart from the intake port, the flow of wind is in the axial direction of the rotating brush. The air flow inside the suction port does not cause turbulence, and the suction air hits the lint and cotton debris separated from the floor evenly, promoting the movement to the suction port and improving the dust collection efficiency. Have improved.

According to the fifth aspect of the present invention, there is provided the electric vacuum cleaner according to the third aspect, wherein the exhaust ports are located at both ends of the rotating brush, and the intake port is provided at an intermediate portion between the exhaust ports. As a result, the distance between the suction port and the exhaust port is reduced, and the distance over which dust such as lint and cotton dust is moved is reduced, thereby improving the dust collection performance.In addition, exhaust gas leaks from the suction port to the outside of the suction port. Can be suppressed.

According to the sixth aspect of the present invention, there is provided the electric vacuum cleaner according to the third aspect, wherein the suction ports are located at both ends of the rotary brush, and the exhaust ports are provided in the middle of the suction ports. , The distance between the suction port and the exhaust port becomes smaller,
Dust collection performance is improved by reducing the movement distance of dust such as cotton dust, and since the dust collection ability near the center of the suction port is good, the vacuum cleaner is operated aiming at the dust on the floor surface It becomes easier.

[Brief description of the drawings]

FIG. 1 is a partially cutaway side view of a vacuum cleaner according to a first embodiment of the present invention.

FIG. 2 is a side view of the vacuum cleaner.

FIG. 3 is a front view of the vacuum cleaner.

FIG. 4 is a plan sectional view of the vacuum cleaner, and is a sectional view taken along line AA of FIG. 2;

FIG. 5 is a plan sectional view of the rotary brush of FIG. 4 partially cut away;

FIG. 6 is a plan sectional view of a vacuum cleaner according to a second embodiment of the present invention, and is a sectional view taken along line AA of FIG. 3;

FIG. 7 is a side view showing an exhaust wind, an intake wind, and a flow of dust of the vacuum cleaner.

FIG. 8 is a plan cross-sectional view around a suction port of a vacuum cleaner according to a third embodiment of the present invention.

FIG. 9 is a plan cross-sectional view around a suction port of a vacuum cleaner according to a fourth embodiment of the present invention.

FIG. 10 is a partially cutaway side view of a conventional vacuum cleaner.

FIG. 11 is a partially cutaway side view of a floor nozzle of the vacuum cleaner.

[Explanation of symbols]

 2 Electric blower 4 Inlet 8 Inlet 13 Rotary brush 18 Guide rib 21 Exhaust

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Koga Kato 1006 Kazuma Kadoma, Kadoma-shi, Osaka Matsushita Electric Industrial Co., Ltd. F-term (reference) 3B061 AA04 AA41 AD05 AD06 AE02

Claims (6)

[Claims] 1. A suction port opened on a bottom surface for sucking dust, a rotary cleaning body rotatably mounted inside the suction port, an air suction port provided in the suction port, and a suction side connected to the air suction port. An electric vacuum cleaner comprising: an electric blower; and a guide rib provided in the suction port in a circumferential direction of the rotary cleaning body and inclined toward the intake port. 2. The vacuum cleaner according to claim 1, wherein the suction air flowing along the axial direction of the rotating brush flows inside the suction port. 3. The vacuum cleaner according to claim 1, further comprising an exhaust port for discharging exhaust gas from the electric blower into a suction port. 4. The vacuum cleaner according to claim 3, wherein the exhaust port is provided separately from the intake port. 5. The vacuum cleaner according to claim 3, wherein exhaust ports are located at both ends of the rotating brush, and an intake port is provided at an intermediate portion between the exhaust ports. 6. The electric vacuum cleaner according to claim 3, wherein the suction ports are located at both ends of the rotating brush, and an exhaust port is provided at an intermediate portion between the suction ports.