JPH0739472A - Upright type vacuum cleaner - Google Patents

Abstract

PURPOSE:To enable a cleaner to be slid by a small force by disposing the rotary center of a wheel and the output axis of a motor blower approximately on the same axis since the center of gravity of a suction port body is located near the rotary shaft of the wheel which is a point of application of a force in the sliding of a cleaner. CONSTITUTION:A rotary shaft 7 of a wheel 6 and a rotary shaft 15 of a motor blower 14 are disposed on the same axis (A-A). As a result, the center of gravity of an intake port body 1 is located near a rotary fulcrum (the rotary shaft 7 of the wheel 6) which is a point of application of a force in the slide of a vacuum cleaner so that the cleaner can be slid by a small force. Also, since rotary shafts 7 of the motor blower 14 and wheel 6 and rotary fulcrums of the suction port body 1 and cleaner body are disposed on the same axis, the center of gravity of the whole cleaner is always approximately in a fixed position even in the pivoting operation of the cleaner body to reduce a load on the hand of a user.

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.

[0002]

2. Description of the Related Art Conventionally, an upright type electric vacuum cleaner is one in which an electric blower and wheels are arranged in a suction port body as described in JP-A-3-212243 (A47L 5/28). It is common. However, in such a configuration, the electric blower, which is the heaviest in the electric vacuum cleaner, is located between the wheel that slides the suction port body and the suction port that becomes heavier by sucking on the floor surface by the suction force. Therefore, the center of gravity of the suction port main body deviates from the axis of the wheel, which is the point of action of the force when the cleaner main body moves, and a considerable force is required when the cleaner main body slides, resulting in poor operability.

[0003]

SUMMARY OF THE INVENTION The present invention has been made in view of the above drawbacks, and an object of the present invention is to provide an upright type electric vacuum cleaner having good operability.

[0004]

According to the present invention, there is provided a suction port main body having a suction port, a cleaner main body rotatably disposed with respect to the suction port main body, and a suction port main body bottom portion. In an upright type electric vacuum cleaner including a wheel that is provided to move the suction port main body in the front-rear direction, and an electric blower built in a rotating portion of the suction port main body and the cleaner main body, a rotation center of the wheel is provided. The output shaft center of the electric blower is arranged substantially coaxially.

Further, according to the present invention, a suction port body having a suction port, a cleaner body rotatably disposed with respect to the suction port body, and a suction port disposed at the bottom of the suction port body. In an upright type electric vacuum cleaner including a wheel for moving a main body in the front-rear direction and an electric blower built in a rotating portion of the suction port main body and a cleaner main body, a rotation center of the wheel and an electric blower The output shaft center and the rotary shaft of the cleaner body with respect to the suction port body are arranged substantially coaxially.

[0006]

According to the structure of claim 1 of the present invention, since the electric blower is arranged substantially coaxially with the rotation shaft of the wheel, the center of gravity of the suction port main body is the point of application of force when the cleaner slides. It is located on the rotation fulcrum (on the rotation axis of the wheel), reducing the load on the user's hand and improving the stability of the entire vacuum cleaner by placing the electric blower at the bottom of the vacuum cleaner. .

According to the second aspect of the present invention,
Since the electric blower, the rotating shaft of the wheels, and the rotation fulcrum of the suction port main body and the vacuum cleaner main body are arranged on substantially the same axis, the center of gravity of the entire vacuum cleaner is always approximately constant even when the vacuum cleaner slides back and forth. By arranging it in a position, the load on the user's hand is reduced and the operability is improved.

[0008]

An embodiment of the present invention will be described in detail below with reference to the drawings.

Reference numeral 1 denotes a suction port body, which has a suction port 2 formed on a bottom surface thereof, and accommodates a rotary brush 3 in a state of facing the suction port 2. Reference numeral 4 denotes a connection port formed in communication with the suction port 2, and one end of a bellows hose 5 is connected to the connection port 4.

Reference numeral 6 denotes a wheel rotatably arranged on both sides of the suction port body 1, and a rotary shaft 7 of the wheel 6 and a rotary shaft 15 of the electric blower 14 described later are coaxial (line AA). It is arranged on the top.

Reference numeral 8 is a dust collecting chamber 9 for accommodating a dust collecting bag (not shown).
In the main body of the vacuum cleaner having the above-mentioned structure, the connecting portion 10 is formed in the lower part of the main body 8 of the cleaner. Reference numeral 11 is a connecting pipe connected to the connecting portion 10, and is a suction portion 12 which communicates with the dust collecting chamber 9 and sucks air.
And an exhaust part 13 for exhausting the air entering from the suction part 12 via an electric blower 14 described later, and the connecting pipe 11
Is rotatably connected to the suction port body 1, so that the cleaner body 8 is arranged so as to be tiltable with respect to the suction port body 1. The rotation fulcrum of the cleaner body 8 with respect to the suction port body 1 is set coaxially (line AA) with the rotation shaft 7 of the wheel 6 and the rotation shaft 15 of the electric blower 14.

Reference numeral 14 denotes an electric blower built in the connecting pipe 11. A belt 16 is installed around a rotating shaft 15 of the electric blower 14 and the rotating brush 3, and the rotating brush 3 is rotated by driving the electric blower 14. It is like this.

Reference numeral 17 denotes a dust collecting opening formed in the dust collecting chamber 9. By connecting the other end of the bellows hose 5 to the dust collecting opening 17 in a detachable manner, the suction port body 1 and the dust collecting chamber are 9, and the dust sucked from the suction port 2 of the suction port body 1 is accumulated in the dust collection chamber 9 via the bellows hose 5. Reference numeral 18 denotes a handle protrudingly provided on the upper portion of the cleaner body 8, and 19 denotes an exhaust hole formed at a lower portion of the rear surface of the cleaner body 8.

When the cleaner is operated, an electric blower
The rotating brush 3 rotates with the rotation of 14, and the dust sucked from the suction port 2 of the suction port body 1 is accumulated in the dust collecting chamber 9 through the connection port 4 and the bellows hose 5. Then, the air filtered by a dust bag (not shown) passes from the lower portion of the cleaner body 8 through the intake section 12, the electric blower 14, and the exhaust section 13 of the connecting pipe 11, and is exhausted through the exhaust hole 19.

When cleaning, the handle 18 is grasped and the cleaner is slid back and forth.
Since it is disposed coaxially with the rotation shaft 7 of the suction port main body 1, the center of gravity of the suction port main body 1 is a rotation fulcrum which is a point of action of force when the cleaner is slid
Since the vacuum cleaner is located near the (rotary shaft 7 of the wheel 6) and can slide the vacuum cleaner with a small force, and the electric blower 14 is arranged in the lower part of the vacuum cleaner, the stability of the entire vacuum cleaner can be improved.

The electric blower 14, the rotating shaft 7 of the wheel 6,
Also, since the rotation fulcrum of the suction port body 1 and the cleaner body 8 is arranged coaxially, the center of gravity of the entire cleaner is always at a substantially constant position even when the cleaner body 8 is rotated. The load on the person's hand is reduced and the operability is improved.

[0017]

According to the structure of claim 1 of the present invention, the center of gravity of the suction port main body is located in the vicinity of the rotation fulcrum (rotating shaft of the wheel) which is the point of action of the force when the cleaner slides. You can slide the vacuum cleaner with less force and improve operability.

According to the second aspect of the present invention,
Since the electric blower, the rotating shaft of the wheel, and the rotation fulcrum of the suction port main body and the vacuum cleaner main body are arranged substantially coaxially, the center of gravity of the entire vacuum cleaner is always almost constant even when the vacuum cleaner slides back and forth. Since it is located, the load on the user's hand can be reduced and operability can be improved.

[Brief description of drawings]

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

FIG. 2 is an enlarged cross-sectional view of the relevant part.

FIG. 3 is a sectional view of the upright electric vacuum cleaner during cleaning.

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

FIG. 5 is a horizontal sectional view of the suction port body.

FIG. 6 is a vertical cross-sectional view of the suction port body.

FIG. 7 is a front view of the upright electric vacuum cleaner.

FIG. 8 is a rear view of the same.

[Explanation of symbols]

 1 Suction port body 2 Suction port 6 Wheels 8 Vacuum cleaner body 14 Electric blower 15 Output shaft

Claims (2)

[Claims] 1. A suction port body having a suction port, a cleaner body rotatably disposed with respect to the suction port body, and a suction port body disposed at the bottom of the suction port body in the front-back direction. In an upright type electric vacuum cleaner including a wheel to be moved to, and an electric blower built in a rotating portion of the suction port main body and the cleaner main body, a rotation center of the wheel and an output shaft center of the electric blower. The upright type electric vacuum cleaner is characterized in that is arranged substantially coaxially. 2. A suction port body having a suction port, a cleaner body rotatably disposed with respect to the suction port body, and a suction port body disposed at the bottom of the suction port body in the front-back direction. In an upright type electric vacuum cleaner comprising a wheel to be moved to, and an electric blower built in a rotating portion of the suction port main body and the cleaner main body, a rotation center of the wheel and an output shaft center of the electric blower. An upright type electric vacuum cleaner, wherein a rotary shaft of the cleaner body with respect to the suction port body is arranged substantially coaxially.