JP2001353105A - Electric vacuum cleaner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve operability and usability of are chargeable electric vacuum cleaner. SOLUTION: This electric vacuum cleaner is provided with a cleaner main body 1 provided with a dust collecting chamber 3, a motor-driven blower 4 and a storage battery 15 and a charging base 24 for charging the storage battery 15 in the state of mounting the cleaner main body 1. In the using state of the cleaner main body 1, the centroid 17 of the storage battery 15 attached to the cleaner main body 1 is arranged at the rear part of the centroid 13 of the cleaner main body 1 except the storage battery 15.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rechargeable vacuum cleaner having a built-in storage battery.

[0002]

2. Description of the Related Art Conventionally, a so-called canister type vacuum cleaner in which an electric blower is driven by a storage battery is disclosed in Japanese Utility Model Publication No. 6-8852 (A47L 9/28).
It is known at

In this prior art, a storage battery is provided at the lower rear portion of the cleaner main body, but the position of the storage battery with respect to the center of gravity of the cleaner main body is not taken into consideration. Even if the flexible hose is pulled, the front of the cleaner body may not be easily lifted.

Therefore, during cleaning, the mobility of the cleaner main body is impaired, for example, it is difficult for the main body of the cleaner to climb over a place having a step, such as a threshold, and there is a problem that operability and usability deteriorate.

[0005]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned drawbacks, and has as its object to provide a vacuum cleaner capable of improving operability and usability.

[0006]

According to the present invention, there is provided a cleaner body having a dust collecting chamber, an electric blower, and a storage battery, a pair of rear wheels disposed on the cleaner body, and connected to the cleaner body. A flexible hose, an extension tube connected to the flexible hose, a floor suction tool connected to the extension tube, and a mounting portion on which the cleaner body is detachably mounted. A charging stand for charging a storage battery in a state in which the cleaner body is mounted on the mounting portion, and in a use state of the cleaner body, the center of gravity of the storage battery is located rearward of the center of gravity of the cleaner body excluding the storage battery. It is characterized by being arranged.

Further, it is desirable that the center of gravity of the storage battery is disposed forward of a rotation axis of the rear wheel.

[0008] Further, it is desirable that the center of gravity of the storage battery is disposed below the center of gravity of the cleaner body excluding the storage battery.

[0009]

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

Reference numeral 1 denotes a cleaner main body, which has a dust collecting chamber 3 formed with an intake port 2 at the front and an electric blower storage chamber 5 for storing an electric blower 4 at the rear. Numeral 6 denotes a dust collecting bag which is housed in the dust collecting chamber 3 and is mounted in a state where an opening communicates with the air inlet 2. Numeral 7 denotes a dust collecting lid for opening and closing the upper opening of the dust collecting chamber 3. is there.

Reference numeral 8 denotes a handle recess formed in the lower portion of the suction port 2 of the cleaner main body 1, which is used when carrying the cleaner main body 1 or placing the cleaner main body 1 on a charging stand 22 described later.
The cleaner body 1 is lifted by inserting a finger into the handle recess 8.

Reference numeral 9 denotes a front cover attached to the front surface of the dust collecting chamber 3, and a connecting cylindrical portion 10 communicating with the intake port 2.
And one end of a flexible hose 19 to be described later is detachably attached to the connection tube 10.

Reference numeral 11 denotes a caster roller disposed in front of the bottom surface of the cleaner main body 1, and reference numeral 12 denotes a pair of rear wheels rotatably disposed on the rear side surface of the cleaner main body 1.

Reference numeral 13 denotes a position of the center of gravity of the cleaner body 1 excluding a storage battery 15 described later.

Numeral 14 denotes a cover which is attached to the lower part of the electric blower storage chamber 5 and forms a part of the lower surface of the cleaner main body 1. A storage part 16 for storing the storage battery 15 is provided between the cover and the bottom wall of the electric blower storage chamber 5. Has formed. Reference numeral 17 denotes the position of the center of gravity of the storage battery 15.
Is the state of use of the cleaner body 1, that is, the cleaner body 1
In a state where the caster roller 11 and the rear wheel 12 are grounded to the floor, the rear wheel 1 is located rearward and below the center of gravity 13 of the cleaner body 1 excluding the storage battery 15.
It is arranged ahead of the second rotation axis.

At the rear of the cleaner body 1, a conductive terminal plate 18 is provided.
Connected to

Reference numeral 19 denotes a flexible hose for inserting a connecting tube 20 formed at one end into the connecting tube 10 of the cleaner body 1 and detachably connecting the connecting tube 20 to the suction port 2. An extension pipe 21 and a floor suction tool 22 are sequentially and detachably connected to the other end. Reference numeral 23 denotes a handle formed integrally with the connection pipe 20 of the flexible hose 19, which is located on the upper surface side of the cleaner main body 1 when the flexible hose 19 is connected to the cleaner main body 1. ing.

Numeral 24 denotes a charging stand having a built-in charger comprising a transformer and a charging control circuit (not shown), and a mounting portion 25 for mounting the cleaner main body 1 in a standing state with the rear surface thereof facing downward.
have.

Reference numeral 26 denotes the cleaner main body 1 of the charging stand 24.
Terminal storage portion formed at a position corresponding to the terminal plate 18 of
A conductive leaf spring 27 serving as a charging terminal is provided in the terminal housing 26.
And the leaf spring 27 is connected to a built-in charger. Reference numeral 28 denotes a slit formed in the terminal housing portion 26. When the cleaner main body 1 is placed on the charging stand 24, the terminal plate 18 of the cleaner main body 1 is inserted into the slit 28 and It comes into contact with the ball.

Reference numerals 29 and 30 denote guide walls formed on two opposing sides of the mounting portion 25, and the upper surface of the cleaner main body 1 and the upper surface of the cleaning device main body 1 when the cleaning main body 1 is mounted on the mounting portion 25. The lower surfaces face the guide walls 29 and 30, respectively.

The guide walls 29 and 30 are formed so as to be inclined so that the distance between the guide walls 29 and 30 is gradually reduced from the upper end toward the mounting portion 25, and when the cleaner main body 1 is mounted on the charging stand 24. In addition, the cleaner main body 1 is guided to a regular position, so that the terminal plate 18 of the cleaner main body 1 and the leaf spring 27 of the charging stand 24 surely coincide with each other.

In this configuration, when the cleaner is not used, the cleaner main body 1 is placed on the mounting portion 25 of the charging stand 24 and stored with the rear surface of the cleaner main body 1 facing downward.
At this time, the terminal plate 18 provided on the rear surface of the cleaner main body 1 comes into contact with the leaf spring 27 via the slit 28 of the terminal storage portion 26, and the storage battery 15 built in the cleaner main body 1 is charged.

When performing cleaning, the cleaner main body 1 is detached from the charging stand 24, and as shown in FIG. 2, a connection pipe 20 at one end of a flexible hose 19 is connected to the suction port 2 of the cleaner main body 1, The other end of the flexible hose 19 is connected to the extension pipe 21 and the suction tool 22 for the floor.
And, the rear wheel 12 is used while being moved while being in contact with the floor.

Since the center of gravity 17 of the storage battery 15 is located behind the center of gravity 13 of the cleaner main body 1 excluding the storage battery 15, when the storage battery 15 is mounted on the cleaner main body 1,
When the center of gravity moves to the rear part of the cleaner body 1 and the flexible hose 19 is pulled along with the cleaning operation, the front of the cleaner body 1 is easily lifted up, and it is easy to get over a step.
The mobility of the cleaner body 1 is improved, and the operability and usability are improved.

The center of gravity 17 of the storage battery 15 is
5 is located behind the center of gravity 13 of the vacuum cleaner body 1 and at the same time ahead of the rotation axis of the rear wheel 12, so that the flexible hose 19 is pulled during cleaning so that Even if the cleaner is lifted, the cleaner body 1 easily returns and the caster roller 11 and the rear wheel 12 return to a state in which they are in contact with the ground, so that the operability and usability are improved without impairing the mobility of the cleaner body 1. Can be improved.

Further, since the center of gravity 17 of the storage battery 15 is located below the center of gravity 13 of the cleaner main body 1 excluding the storage battery 15, the storage battery 15 is mounted on the cleaner main body 1 while the storage battery 15 is mounted on the cleaner main body 1. The center of gravity moves downward, and the cleaner body 1
Is less likely to fall over, driving stability is improved, and operability and usability can be further improved.

[0027]

According to the first aspect of the present invention, by arranging the center of gravity of the storage battery behind the center of gravity of the vacuum cleaner main body excluding the storage battery, the main body of the vacuum cleaner in a state where the storage battery is mounted on the main body of the cleaner. The center of gravity moves to the rear, and the front of the cleaner body is easily lifted up by pulling the flexible hose with the cleaning operation, making it easy to get over a step, etc.
Operability and usability can be improved.

According to the second aspect of the present invention, the center of gravity of the storage battery is disposed behind the center of gravity of the cleaner body excluding the storage battery, so that the rear portion of the cleaner main body in a state where the storage battery is mounted on the cleaner body. The operability and usability can be improved, for example, the center of gravity moves, and the flexible hose is pulled by the cleaning operation, whereby the front of the cleaner main body is easily lifted to easily climb over a step.

Further, by arranging the center of gravity of the storage battery ahead of the rotation axis of the rear wheel, even if the front of the cleaner body is lifted during cleaning, the cleaner body can easily return to the ground state. Operability and usability can be further improved without impairing the mobility of the vacuum cleaner main body.

According to the third aspect of the present invention, by arranging the center of gravity of the storage battery behind the center of gravity of the cleaner main body excluding the storage battery, the rear part of the cleaner main body when the storage battery is mounted on the cleaner main body. The operability and usability can be improved, for example, the center of gravity moves, and the flexible hose is pulled by the cleaning operation, whereby the front of the cleaner main body is easily lifted to easily climb over a step.

Further, by arranging the center of gravity of the storage battery below the center of gravity of the cleaner main body, the center of gravity of the cleaner main body moves downward with the storage battery attached to the cleaner main body, and the cleaner main body is moved downward. The vehicle is less likely to fall and the running stability is improved, and the operability and usability can be further improved.

[Brief description of the drawings]

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

FIG. 2 is an external view showing a use state of the electric vacuum cleaner.

FIG. 3 is a side view showing a state where the cleaner body is placed on a charging stand.

FIG. 4 is an external perspective view of the charging stand.

FIG. 5 is an enlarged cross-sectional view of a main part in a state where the cleaner body is placed on a charging stand.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Vacuum cleaner main body 3 Dust collection room 4 Electric blower 12 Rear wheel 13 Center of gravity of a vacuum cleaner main body 15 Storage battery 17 Center of gravity of a storage battery 19 Flexible hose 21 Extension tube 22 Floor suction tool 24 Charging stand 25 Mounting part

Continuation of front page (72) Inventor Jun Yoshida 2-5-2-5 Keihanhondori, Moriguchi-shi, Osaka Sanyo Electric Co., Ltd. (72) Yoshihiro Mori 2-5-2-5 Keihanhondori, Moriguchi-shi, Osaka Sanyo Electric Co., Ltd. (72) Inventor Kenichiro Doi 2-5-5 Keihanhondori, Moriguchi City, Osaka Prefecture Sanyo Electric Co., Ltd. (72) Inventor Rizo Kobayashi, 2-5-5 Keihanhondori, Moriguchi City, Osaka Prefecture No. 5 Sanyo Electric Co., Ltd. (72) Inventor Kenji Toyooka 2-5-5 Keihanhondori, Moriguchi-shi, Osaka F-term in Sanyo Electric Co., Ltd. (reference) 3B006 EA00 3B057 DE03 DE06

Claims (3)

[Claims] 1. A cleaner body having a dust collecting chamber, an electric blower and a storage battery, a pair of rear wheels disposed on the cleaner body, a flexible hose connected to the cleaner body, An extension pipe connected to the flexible hose, a floor suction tool connected to the extension pipe, and a mounting portion on which the cleaner body is detachably mounted, and cleaning the mounting portion; A charging stand for charging a storage battery when the vacuum cleaner main body is mounted, wherein in the use state of the vacuum cleaner main body, the center of gravity of the storage battery is disposed behind the center of gravity of the vacuum cleaner main body excluding the storage battery. Vacuum cleaner. 2. The vacuum cleaner according to claim 1, wherein a center of gravity of the storage battery is disposed forward of a rotation axis of the rear wheel. 3. The vacuum cleaner according to claim 1, wherein the center of gravity of the storage battery is disposed below the center of gravity of the cleaner body excluding the storage battery.