JPH0739481A - Vacuum cleaner - Google Patents

Abstract

PURPOSE:To prevent a cleaner having the rear body surface abutting uprightly against a floor surface from falling down on its back when the cleaner is erected by providing an inclined surface projecting outside upward from the rear body surface and the lower part thereof. CONSTITUTION:A cleaner body 21 has the rear body surface 23 abutting uprightly against a floor surface. The rear surface 23 of the body is a plane inclined to project outside upward from the lower part 24 of the rear surface 23 toward the upper projecting end 25. The rear body surface 23 has the lower part 24 located inside the outer periphery of a wheel 8 and the upper projecting end 25 projects behind the body 21 beyond the outer periphery of the wheel 8. When the cleaner body 21 is erected upright, the upper projecting end 25 and both left and right side wheels 8 abut against the floor surface so that the body 21 is supported by these two points. Also, the body 21 is supported uprightly with an inclination alpha made between the body bottom surface 26 and the floor surface being not more than 90 deg.. As a result, when the cleaner body 21 is erected upright, the body 21 gets difficult to fall down even if a suction hose is pulled.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a canister type vacuum cleaner.

[0002]

2. Description of the Related Art A conventional canister type vacuum cleaner is
As shown in FIGS. 9 and 10, the suction hose 2 is attached to the vacuum cleaner body 1.
And a dust collection chamber 5 having a dust collection bag 4 communicating with the suction port 3, and a mechanism chamber 7 having an electric blower 6 communicating with the dust collection chamber 5. Wheels 8 are provided on both left and right sides of the rear portion of the main body 1. In the figure, 9 is a caster, 10 is an exhaust port, and 11 is a bumper.

When cleaning a high place such as a ceiling or a shelf, or when housing the cleaner body 1, the floor body 12 is brought into contact with the body rear surface 13 to stand the cleaner body 1 as shown in FIG. Was there. Therefore, various modifications have been made to the shape of the rear surface of the main body so that the cleaner main body 1 can be placed upright. As an example, in the electric vacuum cleaner disclosed in JP-A-2-131725, the rear surface 13 of the main body is The grounding ribs 14 are provided on the upper part of the main body 1, and the main body 1 is supported vertically by the grounding ribs 14 and the wheels 8.

[0004]

When the main body of the vacuum cleaner is used in an upright state, the suction hose 2 has an arrow a as shown in FIG.
Since it is pulled to the left and right as shown by, the main body 1 falls down in the A direction or the B direction.

For example, when the main body 1 falls down in the direction A, the wheels 8 and the casters 9 come into contact with the floor surface 12 to be in a normal horizontal position, and the cleaning can be continued as it is. However, when the main body 1 falls down in the B direction, as shown in FIG.
It was necessary to raise the main body 1 and return it to the horizontal or standing state.

Therefore, the cleaning work must be interrupted every time the main body 1 is raised, and the cleaning time is long.
Also, when changing the cleaning position, the direction of the main body 1 must be changed to prevent the main body 1 from falling down.
There was a problem that the operability of the vacuum cleaner deteriorates.

In view of the above, the present invention aims to provide an electric vacuum cleaner which does not fall down on its back when the main body of the vacuum cleaner is placed upright.

[0008]

As shown in FIG. 1, a cleaner body 21 is provided with a dust bag 4 and an electric blower 6 inside, and the left and right sides of the rear portion of the body 21 are provided. Wheels 8 are provided on both sides of the main body rear surface 23 such that the rear surface 23 of the main body abuts on the floor surface 12 and can be erected.
However, the rear surface 23 is an inclined surface that protrudes upward from the lower portion 24 of the rear surface 23.

The problem solving means according to claims 2 and 3 is shown in FIG.
As described above, the dust collecting bag 4 and the electric blower 6 are installed in the cleaner body 21, the wheels 8 are provided on the left and right sides of the rear portion of the body 21, and the body 21 is placed upright at the rear of the body rear surface 30. A standing plate 31 is provided which enables the standing plate 31.
Is rotatably attached to the body rear surface 30 so as to be inclined with respect to the body rear surface 30.

According to a fourth aspect of the present invention, the means for solving the problem is the standing plate 4
The cord reel 43 is internally provided in the first embodiment.

[0011]

In the means for solving the problem according to the above-mentioned claim 1, when the cleaner main body 21 is housed or when cleaning a high place such as a ceiling or a shelf, the main body rear surface 23 is placed on the floor surface 12 side. Stand up. At this time, the upper protrusion 25 of the rear surface 23 of the main body and the wheel 8 come into contact with the floor surface 12, and the main body 21 is erected while being inclined toward the bottom surface 26 of the main body. And
Even if the suction hose 2 is pulled, the cleaner main body 21 does not easily fall down on its back.

In the means for solving the problems according to claims 2 and 3, when the cleaner main body 21 is erected, the standing plate 31 and the wheels 8 are in contact with the floor surface 12, and the main body 21 is inclined toward the bottom surface 26 of the main body. It stands in. When the suction hose 2 is pulled, the main body 21 rotates in the pulled direction in a state where the main body 21 is inclined with the standing plate 31 as the center. Therefore, the cleaner body 21 does not fall down on its back.

In the means for solving the problem according to the fourth aspect, even if the main body 21 is pulled by the suction hose 2 and the main body 21 rotates about the standing plate 41, the power cord 40 is out of the standing plate 41. The plate 41 does not get entangled.

[0014]

【Example】

(First Embodiment) FIG. 1 is a partially cutaway side view of a vacuum cleaner body according to a first embodiment of the present invention, and FIG. 2 is a side view showing a standing state of the vacuum cleaner body. It should be noted that the same components as in the related art are designated by the same reference numerals.

As shown in FIG. 1, in the electric vacuum cleaner of this embodiment, a dust collector bag 4 and an electric blower 6 are provided in a cleaner body 21, and wheels 8 are provided on the left and right sides of the rear portion of the body 21. ing.

The cleaner body 21 is formed in a box shape,
It is composed of an upper body 21a and a lower body 21b.
A suction port 3 for detachably connecting the suction hose 2 is provided on the front surface 22 of the main body, and a dust collection chamber 5 having the dust bag 4 communicating with the suction port 3 in the main body 21. There is a mechanism chamber 7 provided with the electric blower 6 communicating with the dust collecting chamber 5, and a cord reel (not shown) is arranged in the mechanism chamber 7.

The main body 21 of the vacuum cleaner can be placed upright with the rear surface 23 of the main body in contact with the floor surface 12, and the rear surface 23 of the main body extends from the lower portion 24 of the rear surface 23 toward the upper tip 25. It is a slanted plane so that it protrudes outward.

A lower portion 24 of the body rear surface 23 is located inside the outer periphery of the wheel 8, and the upper projecting end 25 projects rearward of the body 21 from the outer periphery of the wheel 8.
Then, when the cleaner body 21 is stood up, as shown in FIG.
And the main body 21 is supported by these two points. Then, the main body bottom surface 26 and the floor surface 12 are placed upright in an inclined state where the inclination angle α is 90 degrees or less.

Further, the rear surface 23 of the main body is provided with an exhaust port 27 for exhausting an air flow generated by the electric blower 6, and a plurality of exhaust ports 27 are formed. However, when the main body 21 is in the standing state, the upper tip 25
A gap is formed between the rear surface 23 and the floor surface 12 other than the above, and the discharge of air from the exhaust port 27 is secured.

In the above structure, when cleaning the floor 12 such as a carpet or a fold, the wheels 8 and the casters 9 on the bottom surface 26 of the main body are brought into contact with the floor 12 to place the cleaner main body 21 in a horizontal position. To do. By moving the floor 12 by the wheels 8 and the casters 9, the floor 12 is effectively cleaned.

When housing the cleaner body 21, or when cleaning a high place such as a ceiling or a shelf, the cleaner body 21 is erected with the body rear surface 23 facing the floor 12.
At this time, the upper tip 25 of the rear surface 23 of the main body and the wheel 8 come into contact with the floor surface 12, and the cleaner main body 21 is erected with the bottom surface 26 thereof slightly inclined toward the floor surface 12 as shown in FIG. It

In this way, when the cleaner main body 21 is stood up, the main body 21 is inclined, so that the suction hose 2
Even if is pulled as indicated by the arrow b, the main body 21 does not easily fall in the D direction and does not lie on its back. Therefore, it is not necessary to raise the cleaner main body 21 to return it to the horizontal state or the upright state, so that cleaning can be performed in a short time without interrupting the cleaning work. Also, even if the main body 21 falls in the C direction,
Since the wheels 8 and the casters 9 come into contact with the floor surface 12 and are placed horizontally, the cleaning operation can be continued as it is, and the operability of the cleaner is not deteriorated.

(Second Embodiment) In the vacuum cleaner of the first embodiment described above, the cleaner body 21 is prevented from falling down on its back by devising the shape of the rear surface 23 of the body, but the suction hose 2 is forcibly pulled. If it is pulled to, there is a risk of falling in the direction of D in Fig. 2, and this is not a complete method for preventing falling. Further, when changing the cleaning position with the main body 21 standing, the direction of the main body 21 had to be changed. Therefore, in the electric vacuum cleaner according to the present embodiment, as shown in FIG. 3, a standing plate 31 that allows the main body 21 to stand is provided behind the rear surface 30 of the cleaner body, and the standing plate 31 serves as the main body. The rear surface 30 is rotatably mounted via a support shaft 32.

The rear surface 30 of the main body is located inside the outer circumference of the wheel 8 and is formed in a plane shape perpendicular to the floor surface 12. A circular hole that is inclined downward is formed in the center of the rear surface 30 of the main body, slightly on the upper surface 15 side, and this serves as a bearing portion 33 for bearing the support shaft 32. An exhaust port 27 is formed in the rear surface 30 other than the bearing portion 33.

The standing plate 31 is a circular plate that abuts the floor surface 12 to support the main body 21 when the main body 21 is in a standing state, and the support shaft 32 is provided on the rear surface 30 side of the standing plate 31. The cylinder 34 into which is inserted is provided.

The support shaft 32 is formed in a step-like large diameter portion 35 and a small diameter portion 36, and the tip of the small diameter portion 36 projects rearward of the main body 21 and is rotatably inserted into the bearing portion 33. . The end portion 35 a of the large diameter portion 35 is the bearing portion 33.
The standing plate 31 can be rotated with respect to the rear surface 30 of the main body by being brought into contact with and locked by the inner surface 33a and the cylinder 34 of the standing plate 31 being fitted and fixed to the tip of the small diameter portion 36.

The standing plate 31 is mounted such that the axis X of the support shaft 32 is inclined with respect to the rear surface 30 of the body by an angle β (β ≦ 90 degrees), and as shown in FIG. In the upright state, the upright plate 31 and the wheels 8 on both left and right sides contact the floor surface 12 to support the main body 21, and the main body bottom surface 26 is inclined by the inclination angle β with respect to the floor surface 12. Then, the main body 21 is rotated around the axis center X of the support shaft 32 of the standing plate 31. The other structure is the same as that of the first embodiment.

As described above, when the suction hose 2 is pulled while the cleaner main body 21 is in the upright state, the main body 21 is inclined around the axis X of the support shaft 32 while the wheels 8 rub against the floor surface 12. Since it rotates in the pulling direction, the bottom surface 26 of the main body always faces the pulling direction.

Therefore, since the main body 21 always has a constant inclination angle, the main body 21 does not fall down on its back and it is not necessary to change the direction of the main body 21 one by one.
Operability of the vacuum cleaner is improved. Further, when the main body 21 rotates, the wheels 8 slide on the floor surface 12, so that the main body 21 is always supported by the standing plate 31 and the wheels 8 and stable rotation is obtained.

(Third Embodiment) In the second embodiment, the cleaner body 21 is rotated around the support shaft 32 of the standing plate 31,
Since the body 21 is changed in direction, it does not fall down on its back, but as shown in FIG. 5, when the body 21 rotates around the support shaft 32 several times, the power cord 40 is entangled with the support shaft 32. is there. Therefore, in the electric vacuum cleaner of the present embodiment, as shown in FIG. 6, the standing plate 41 is formed in a box shape, and the inside thereof is a cord reel chamber 42, and the cord reel 43 is internally provided in the cord reel chamber 42. Has been done.

On the standing plate 41, a support shaft 44, which will be described later, is fitted on the rear surface 30 side of the main body, and a cylinder 45 communicating with the cord reel chamber 42 is provided in a protruding manner.

The support shaft 44 has a stepped large diameter portion 44a.
The small diameter portion 44b is formed in a hollow shape, and the tip of the small diameter portion 44b projects rearward of the main body 21 and is rotatably inserted into the bearing portion 33. The small diameter portion 44b has a cylindrical end plate 41 at the tip thereof. 45 is fitted and fixed. And the support shaft 4
The power cord 40 is inserted into the cord 4, and the electric circuit on the body 21 side and the cord reel 43 are communicated with each other.

A winding drum 43a, which is rotatably supported, is arranged in the cord reel chamber 42, and the winding drum 4 is provided.
A winding device (not shown) including a spring, a brake and the like is attached to 3a. Then, the power cord 40 is wound and stored in the cord reel chamber 42 by the winding device. In the power cord 40, the power plug 40a at the tip of the power cord 40 projects from the outlet 46 formed on the outer peripheral surface of the standing plate 41, and the cord reel 43 rotates by pulling the power plug 40a. Is extended.

When the standing plate 41 is brought into contact with the floor surface 12 to stand the main body 21, the main body 2 is moved as shown in FIG.
Since 1 is supported only by the standing plate 41, and the height of the standing plate 41 is increased by the thickness of the standing plate 41, the wheels 8 do not contact the floor surface 12. The other structure is the same as that of the second embodiment.

As described above, even when the cleaner body 21 stands upright and rotates around the support shaft 44, the power cord 40 comes out of the stand plate 41 which is in contact with the floor surface 12 and is stationary. Therefore, the support shaft 44 is not entangled. Therefore,
With the cleaner body 21 standing upright, it can be rotated about the support shaft 44 any number of times. In addition, since the cord reel 43 installed in the cord reel chamber 42 of the standing plate 41 serves as a weight, the cleaning plate body 21 can be supported only by the standing plate 41, and it is difficult for the cleaner body 21 to fall.

The present invention is not limited to the above embodiment, and it goes without saying that many modifications and changes can be made to the above embodiment within the scope of the present invention.

For example, the standing plate 3 of the second and third embodiments described above.
If the area of 1, 41 is increased, the attachment angle to the main body 21 may be 90 degrees with respect to the floor 12.

Further, the cleaner main body 21 of the second and third embodiments is rotated about the axis by using the support shafts 32 and 43, but as shown in FIG. 8, it can be rotated at all angles. Alternatively, the ball joint 50 may be used.

[0039]

As is apparent from the above description, according to claim 1 of the present invention, when the cleaner main body is erected, the main body is inclined to the bottom surface side, so it is difficult to fall down on the back. Therefore, it is not necessary to suspend the cleaning work and raise the main body, so that cleaning can be performed in a short time.

According to the second and third aspects of the present invention, the main body can be placed upright in a tilted state by the standing plate, and even if an external force is applied to the main body, the main body has a constant inclination angle about the standing plate. Since it rotates as it is, it does not fall down on its back.

Therefore, it is not necessary to change the orientation of the main body one by one, and it is possible to clean a wide range of high places such as a ceiling and a shelf, so that the operability of the vacuum cleaner is improved. In addition,
When the main body rotates, the wheels slide on the floor surface, so the main body is always supported by the standing plate and the wheels, and stable rotation is obtained.

According to the fourth aspect, since the power cord extends from the standing plate, it does not get entangled with the standing plate even when the main body rotates. Therefore, the main body can be rotated about the standing plate any number of times. Moreover, since the cord reel serves as a weight and the main body can be supported only by the standing plate, there is an excellent effect that it is hard to fall down.

[Brief description of drawings]

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

FIG. 2 is a side view of the electric vacuum cleaner in a standing state.

FIG. 3 is a partially cutaway side view of the electric vacuum cleaner according to the second embodiment.

FIG. 4 is a side view of the electric vacuum cleaner in a standing state.

FIG. 5 is a side view of the power cord in a entangled state.

FIG. 6 is a partially cutaway side view of the electric vacuum cleaner according to the third embodiment.

FIG. 7 is a side view of the electric vacuum cleaner in a standing state.

FIG. 8 is a partially cutaway side view of an electric vacuum cleaner showing another embodiment.

FIG. 9 is a side view of a conventional vacuum cleaner.

FIG. 10 is a partially cutaway side view of the same electric vacuum cleaner.

FIG. 11 is a side view of the electric vacuum cleaner in a standing state.

FIG. 12 is a side view of the electric vacuum cleaner in a supine state.

[Explanation of symbols]

 4 Dust bag 6 Electric blower 8 Wheels 12 Floor surface 21 Vacuum cleaner main body 23 Main body rear surface 24 Lower part of main body rear surface 30 Main body rear surface 31 Stand plate 41 Stand plate 43 Code reel

Claims (4)

[Claims] 1. A vacuum cleaner main body is internally provided with a dust bag and an electric blower, and wheels are provided on both left and right sides of a rear portion of the main body so that the rear surface of the main body can be abutted against a floor surface to be erected. In the electric vacuum cleaner, the rear surface of the main body is an inclined surface protruding upward from a lower portion of the rear surface. 2. A vacuum cleaner body, in which a dust bag and an electric blower are installed, and wheels are provided on both left and right sides of a rear portion of the main body, wherein the main body is set upright behind a rear surface of the main body. An electric vacuum cleaner, wherein a standing plate that enables the standing plate is provided, and the standing plate is rotatably attached to the rear surface of the main body. 3. The electric vacuum cleaner according to claim 2, wherein the standing plate is attached to be inclined with respect to the rear surface of the cleaner main body. 4. The electric vacuum cleaner according to claim 2, wherein the standing plate is internally provided with a cord reel.