JPH08196480A - Upright type vacuum cleaner - Google Patents

Abstract

PURPOSE: To provide an upright type vacuum cleaner capable of eliminating exhaust wind to blow to a body and cleaning hygienically, by mounting a pedal part to engage with inclination of the main body and a hose attaching part in an identical direction and an exhaust port on the opposite side of the main body in the opposite direction. CONSTITUTION: A pedal 46 to slantly rotate a main body 1 and to engage with it is constructed in the rear side of a cover for a suction opening 23. Since an exhaust port 70 is in the central part of the right side, opposite to the left side, of the main body with the pedal 46 and exhaust wind is discharged in the horizontal direction, dust on the floor cannot be blown off. When a low floor such as under a bed, etc., is cleaned, since the exhaust port 70 is not blocked by a lower part of the bed, abnormal temperature elevation of an electric blower 12 is eliminated. When a connection pipe 62 is rotated and pulled off the main body duct to use a crevice nozzle 66, since a hand or a face is in the opposite side of the exhaust port 70, no exhaust wind blows onto those and the pipe can be easily removed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an upright type electric vacuum cleaner which is comfortable to operate and which prevents discomfort caused by exhaust air when operating a hose and a pedal.

[0002]

2. Description of the Related Art Conventionally, as shown in Japanese Utility Model Laid-Open No. 59-93363, a suction port having a built-in rotating brush is tiltably arranged at a lower part of a main body equipped with a dust collection chamber and an electric blower, and the electric blower is dusty. It is also used as a drive source for the suction and the rotating brush, and therefore, the installation is limited to the lower part of the main body, and accordingly, the exhaust port is generally provided on the bottom wall or the front of the main body.

[0003]

However, the upright electric vacuum cleaner having such a structure has the following problems.

When the hose attaching / detaching part and the exhaust port are close to each other, the exhaust air from the exhaust port hits the face and hands when attaching / detaching the hose, which is uncomfortable.

When the pedal part and the exhaust port are close to each other,
Exhaust air from the exhaust port hits the face or hand of the foot when the pedal is operated and is uncomfortable.

If the exhaust port is formed in the lower front of the main body, for example, if the bottom of the bed is cleaned with the main body tilted down and the suction port and the main body are horizontal, the exhaust port and the bottom of the bed will cause the exhaust port to be exhausted. There is also a state where the air blower is blocked, which may cause overheating of the electric blower, which is a safety issue.

When the exhaust port is formed in the lower part of the main body in front of the electric blower, the exhaust flow path from the electric blower becomes short and the noise reduction effect cannot be expected. Further, the exhaust flow velocity cannot be reduced and the tilting angle of the main body during cleaning is increased. Depending on the face, the exhaust air may hit the face, causing unpleasant feelings. By increasing the size of the exhaust port to reduce the exhaust flow velocity, the strength of this portion is reduced. That is, during cleaning of the floor under the bed or desk, the height of the main body is structurally higher than the height of the mouthpiece, and this high portion may hit and be damaged.

An object of the present invention is to provide an upright type electric vacuum cleaner which is good in hygiene because exhaust air does not hit the body when the pedal section and the hose are attached / detached.

[0009]

In order to achieve the above object, the present invention has a pedal portion and a hose attaching / detaching portion formed in a direction opposite to an exhaust port, and the exhaust port is provided on a side surface of a main body.

[0010]

Therefore, according to the present invention, the exhaust air discharged from the electric blower cools the cord reel portion and is discharged from the side exhaust port. There is a pedal portion and a hose attachment / detachment portion at the rear of the suction port in the direction opposite to the exhaust port, so that exhaust air does not hit when operated by a foot or a hand.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS.

The main body 1 of the electric vacuum cleaner is composed of a main body case 2, a rear case 8 and a front lid 7, and is divided into four large spaces. The dust collection chamber 3, the dispersion exhaust chamber 4, and an electric blower chamber 5 are provided below.

The front of the dust collecting chamber 3 is covered with a removable front lid 7 through a dust collecting packing 15 so as to be airtight. Airtightness is taken between the dust collecting part packing 15 provided on the front lid 7 and the airtight rib 18 provided around the dust collecting chamber 3,
The dust collection chamber 3 is configured to have a negative pressure when the electric blower 12 is operating.

The front lid 7 is provided with a clamp 19 for detachably engaging. A paper bag 11 is detachably locked in the dust collection chamber 3 by a holder 16 at an inlet 17. The dispersion exhaust chamber 4 is a sound deadening space provided so as to cover the dust collection chamber 3 from the rear side. There is a noise reduction effect by guiding the exhaust air discharged from the electric blower 12 located below to the exhaust port 70 provided on the side surface. This is because the velocity of the exhaust air can be reduced by widely dispersing the exhaust air.

Further, a cord reel 21 for winding the power cord 20 and a cord reel button 22 are arranged in the dispersion exhaust chamber 4, and the exhaust wind cools the entire cord reel 21 as shown by the arrow in FIG. The effect of preventing the temperature rise of the power cord 20 is provided.

The electric blower chamber 5 is provided with an intake duct 50 which connects the electric blower 12, the intake portion 58 of the electric blower 12, and the suction port 49 of the dust collecting chamber 3 to each other.
An entrance 51 is provided. In addition, the mouthpiece 23 is provided outside.
Step portion 52 engaged with the axle pushing lever 32 extending from the side
Is provided. Since the electric blower 12 drives the rotating brush 25, the intake duct 50 is horizontally arranged in the electric blower chamber 5, so that the dust collection chamber 3 and the electric blower 1 are arranged.
Since it cannot be opposed to the second intake portion 58, an opening 59 communicating with the intake portion 58 is provided on the side surface of the duct from the dust collection chamber 3.

An operating handle 60 is detachably disposed and supported on the upper portion of the main body 1, and a handle 64 for transportation is provided on the lower rear surface thereof, and a telescopic hose 55 is provided below the handle 64. A connecting pipe 61 is provided on one side of the telescopic hose 55, and a connecting pipe 62 is provided on the other side. The connection pipe 61 is attached to the back of the main body 1, and the connection pipe 6
2 is detachably connected to the body duct 54 by taper fitting. When the connection pipe 62 is pulled out while rotating from the main body duct 54, the states shown in FIGS.
An extension pipe 65, a crepus nozzle 66, etc. are connected to 2 according to the purpose, so that it is possible to clean the furniture gaps or the shelves that are difficult to clean with the suction port 23. Accessories such as the extension pipe 65 and the crepus nozzle 66 are detachably stored by forming a recess 67 in the rear surface of the rear case 8.

The main body 1 is mounted so as to be tiltable with respect to the suction port 23, so that it can be erected by a pedal 46 provided at the suction port 23 so as to stand upright on the suction port 23 when not in use. It is configured.

The suction port 23 has a base frame 33 and a cover 3.
4. The appearance is formed by the bumper 35, and the rotary brush 25 for scraping up dust on the carpet is built in the suction port 24 at the front lower opening of the suction port 23, and the height of the suction port 24 is set to the level of the carpet. A height control knob 27 for adjusting according to the height of the bristle is rotatably arranged in the center of the cover 34. A pedal 46 for tiltably rotating and locking the main body 1 is provided at the rear of the cover 34, and rear wheels 28 are rotatably supported at both lower ends thereof.

The pedal 46 is attached around a support shaft (not shown) provided at the suction port 23. Pedal 4
The lower end of 6 is in contact with the flat portion 47 of the lock arm 43, and the lock arm 43 serves as the rotary shaft 39.
4 and a locking portion 42. The locking portion 42 locks the main body 1, so that the locking portion 42 abuts on the locking projection 63 provided on the main body 1, and further, in order to urge the locking portion 42 toward the locking projection 63, it has a spiral shape. A biasing spring 45 is provided.
When the pedal 46 is stepped on with the foot to release the lock, the main body 1 can be tilted backward around the rotation shaft 39, and the normal use state is achieved. Further, the main body 1 can be tilted until the operation handle 60 hits the floor surface, so that it is easy to clean a low floor surface such as under the bed. Here, by providing the exhaust port 70 of the present invention on the side surface of the main body 1, the exhaust port 70 is provided by the lower part of the bed.
Is not blocked, there is no abnormal temperature rise of the electric blower 12, and safety and reliability are high. Further, since the position of the exhaust port 70 is in the central portion on the side of the main body 1 and a large area of the exhaust port 70 can be obtained, the exhaust wind velocity can be reduced,
Moreover, since the exhaust air is exhausted in the horizontal direction from the exhaust port 70, dust on the floor surface is not blown away, so that floating dust is not generated and it is hygienic.

Next, the operating state of the present embodiment constructed as above will be described.

In use, the power cord 20 is pulled out from the cord reel 21, connected to a power source, and the pedal 46 at the rear of the suction port 23 is depressed to tilt the main body 1 above the suction port 23.
Next, when the power switch 6 is turned on, the electric blower 12 is rotated, a suction airflow is generated, and the electric blower 12 is rotated.
Is transmitted to the rotating brush 25 via the belt 14 and is rotated. The air flow containing a large amount of dust scraped up by the rotating brush 25 passes through the suction port 24, the suction duct 53, the main body duct 54, and the telescopic hose 55, is trapped in the paper bag 11, and is filtered by the paper bag 11. Only the air flow is the suction port 4
9 passes through the intake duct 50 to cool the inside of the electric blower 12, and the air flow discharged from the electric blower 12 is the electric blower 1
2 passes through an exhaust filter 69 provided between the dispersion exhaust chamber 4 and the dispersion exhaust chamber 4, and the filtered clean airflow is discharged to the dispersion exhaust chamber 4. After the exhaust gas is dispersed, the power cord 20, the cord reel 21 and the like are cooled and then discharged from the exhaust port to the outside of the machine. At this time, the dispersion exhaust chamber 4 has a relatively long distance,
In addition, since the acoustic energy that is compressed when passing through the exhaust filter 69 is reduced because the acoustic energy that is expanded here is reduced because of the large area, a sound deadening effect is obtained.

Next, the main body 1 is rotated and pulled out from the connecting pipe 62 of the elongate telescopic hose 55 and the main body duct 54. At this time, since the exhaust port 70 is on the opposite side of the hand or face,
It can be easily removed without being hit by exhaust air. By removing the extension pipe 65 and the crepus nozzle 66 from the rear concave portion 67 of the rear case 8 to the connection pipe 62 of the detached telescopic hose 55, it becomes possible to perform cleaning that cannot be done at the suction port 23 such as a gap of furniture.

[0024]

According to the present invention, the following effects can be obtained.

Exhaust air may hit the hands, feet, face, etc. when operating the pedal or attaching / detaching the expansion / contraction hose, or by bringing the body to the pedal side of the cleaning work body, the air may not hit the body. There is no pleasure and hygienic cleaning is possible.

Since the exhaust port can be formed in a wide surface on the side of the main body, a large exhaust area can be obtained, exhaust air can be reduced, and the sound deadening effect is high. Furthermore, it is unnecessary to provide a sound absorbing material for reducing exhaust noise at the exhaust port, which contributes to reduction of production cost and improvement of assemblability.

Since the exhaust port is formed on the side surface of the main body, when cleaning the floor of the lower part of the bed, the exhaust port is closed by the lower part of the bed when the exhaust port is formed on the front surface of the conventional lower part of the main body. Unlike the one in which overheating of the blower is likely to occur, the exhaust port is not blocked and it is also excellent in terms of safety.

[Brief description of drawings]

FIG. 1 is a vertical cross-sectional view of a main part showing an embodiment of the present invention.

FIG. 2 is a cross-sectional view showing an embodiment of the present invention with a rear rear cover removed.

FIG. 3 is a right side view of a partial cross section showing an embodiment of the present invention.

FIG. 4 is a left side view of a partial cross section showing an embodiment of the present invention.

FIG. 5 is a rear view showing an embodiment of the present invention in which the retractable hose is stored.

FIG. 6 is a partial cross-sectional side view showing a virtual state in which the main body is tilted and the telescopic hose is removed from the suction port according to the embodiment of the present invention.

FIG. 7 is a rear view showing the embodiment of the present invention with the telescopic hose removed from the suction port.

FIG. 8 is a longitudinal sectional view of a main part of a mouthpiece and a lower portion of the main body, showing the embodiment of the present invention.

FIG. 9 is a transverse cross-sectional view of the main part of the mouthpiece and the lower part of the main body, showing the embodiment of the present invention.

FIG. 10 is a lateral cross-sectional view of a main part showing a cord reel and a main body exhaust part according to an embodiment of the present invention.

[Explanation of symbols]

1 ... Main body, 3 ... Dust collection chamber, 4 ... Dispersion exhaust chamber, 5 ... Electric blower chamber, 12 ... Electric blower, 23 ... Suction port, 46 ... Pedal,
55 ... telescopic hose, 60 ... operation handle, 70 ... exhaust port.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Yasunori Odaka 1-1-1 Higashitaga-cho, Hitachi City, Ibaraki Prefecture Incorporated company Hitachi Ltd. Electric Appliances Division, Taga Headquarters (72) Inventor Yukiko Kato Higashitaga, Hitachi City, Ibaraki Prefecture 1-1-1 Machi Incorporated company Hitachi Ltd. Electric Appliances Division Taga Headquarters

Claims (1)

[Claims] 1. An electric blower at the bottom, a dust collecting chamber at the center, a main body provided with an operation handle at the upper end, a suction port rotatably coupled to the main body, and a tiltable rotation of the main body behind the suction port. , A pedal for locking, and a hose on the rear surface of the main body in a path connecting the suction chamber of the suction port and the dust collection chamber of the main body, and the suction side of the hose is detachable, the pedal and the hose An upright electric vacuum cleaner characterized in that an attachment / detachment portion is provided in the same direction, and an exhaust port is formed on a side surface of the main body opposite to the pedal.