JP3232630B2 - Electric vacuum cleaner - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

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

[0002]

2. Description of the Related Art In recent years, there has been a growing demand for vacuum cleaners that can be cleaned while rotating horizontally without moving the main body.

[0003] A conventional vacuum cleaner will be described below. 7 and 8 show a conventional vacuum cleaner disclosed in Japanese Patent Application Laid-Open No. 58-239205. As shown in FIGS. 7 and 8, reference numeral 1 denotes a main body having a built-in electric blower 2 and the like, having a pair of traveling rollers 3 on both side surfaces of the main body 1.
A caster roller 4 for traveling that is rotatable in the horizontal direction is provided on the front bottom surface. A hose 6 is detachably attached to an intake port 5 provided in front of the main body 1. Reference numeral 7 denotes a hand held by the user during cleaning, and an extension pipe 8 and a floor nozzle 9 are provided at the tip.

[0004]

However, in the above-mentioned conventional structure, when the user moves the main body 1 while cleaning, the user moves the main body 1 while pulling the hose 6, but the roller 3 for moving the main body 1 and the caster roller 4 are used. However, when the carpet is caught on the carpet and the weight of the main body 1 is 5 kg,
It requires a tensile force of 1 to 2 kg and a rotational force of 0.5 to 1 kg, which is very burdensome for the user. In addition, when the main body 1 moves, it comes into contact with furniture and the like, and the furniture and the main body 1
However, there was a problem in that it was damaged. Furthermore, the stability is poor on the stairs, and the user must clean the stairs while holding the main body 1 when cleaning the stairs, which is heavy and very burdensome.

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 good directional change and operability.

[0006]

In order to achieve this object, a vacuum cleaner according to the present invention comprises, as first means, both side surfaces of a main body.
And a pair of rollers rotatably provided near the position of the center of gravity of the main body, and a protrusion or a protrusion on the side surface of the roller.
Part is provided with a protrusion, and the protrusion or the protrusion of the roller is
Main body can be rotatably supported when it is grounded on the floor
The configuration is as follows.

The second means has a configuration in which a rotatable roller caster is attached to the side surface of the roller.

The third means has a configuration in which a handle hole or a handle is attached to the side surface of the roller.

[0009]

According to this structure, in the first means, the main body can be rotated 360 degrees horizontally without moving the main body around the protruding portion or the protruding body of the roller in contact with the floor by turning the main body sideways.

In the second means, similarly to the first means, the main body can be horizontally rotated 360 degrees around the center of the caster roller attached to the roller side surface in contact with the floor surface.

According to the third means, the main body can be carried with the main body turned sideways by a grip hole or a grip provided on the side surface of the roller.

[0012]

(Embodiment 1) An embodiment of the present invention will be described below with reference to the drawings. The same components as those in the conventional example are denoted by the same reference numerals, and description thereof is omitted.

As shown in FIGS. 1 to 3, a pair of running rollers 10 are provided on both sides of the main body 1 near the electric blower 2. The position of the roller 10 is near the center of gravity of the main body 1. The roller 10 is sandwiched by a roller cover 12 fixed to the center of the main body 1 with screws so as to rotate and slide around the outer circumference of the bearing 11 on both side surfaces of the main body 1. Roller cover 1
2 has a gap A so as not to hinder the rotation of the roller 10.
Is provided. A plurality of protrusions 1 are provided on the side surface of the roller 10.
A protrusion 15 made of an elastic material such as rubber is fitted to the three or more concave protrusions 14 by bonding or the like.

The operation of the vacuum cleaner configured as described above will be described with reference to FIGS. First, the roller 1 is normally rolled to move the main body 1 for cleaning. However, if the main body 1 is turned sideways in the center of the carpet room and the protrusion 13 or the protrusion 15 is placed in contact with the floor, the main body 1 is cleaned. The main body 1 is rotated 360 around the roller 10 near the center of gravity.
Since the main body 1 is rotated by degrees, cleaning can be performed without moving the main body 1.
Further, since the main body 1 does not move even in a narrow place such as a staircase as described above, cleaning can be performed without fear of falling off.

Further, the elastic projecting body 15 is
When the main body 1 is moved by rolling 0, the main body 1 is not damaged even if it comes into contact with furniture or the like. Even if the main body 1 is laid down on a smooth floor, it is non-slip.

As described above, according to the present embodiment, the roller 1
0, the protruding portion 13 or the protruding body 15 is provided.
While rotating, it can be lightly and stably operated without being caught on the carpet or falling off.

Also, the main body 1 is provided by the elastic projection 15.
Even when the roller 10 comes into contact with furniture during traveling, damage can be prevented, and even if the main body 1 is laid down on a smooth floor surface, it can be stably cleaned without slipping.

Embodiment 2 Hereinafter, a second embodiment of the present invention will be described with reference to the drawings. The same components as those in the first embodiment are denoted by the same reference numerals, and description thereof is omitted.

As shown in FIG. 4, a plurality of caster rollers 16 rotatable in parallel with the side surface of the roller 10 are mounted on the side surface of the roller cover 12.

The operation of the vacuum cleaner configured as described above will be described with reference to FIG. First, the roller 10 is normally rolled to move the main body for cleaning. However, as in the first embodiment, the main body 1 is turned sideways in the center of the carpet room, and the caster roller 16 is placed on the floor. Is rotated 360 degrees by the caster roller 16,
Cleaning can be performed without moving the main body 1. Further, since the main body 1 does not move even in a narrow place such as a staircase as described above, cleaning can be performed without fear of falling off.

As described above, according to the present embodiment, a plurality of caster rollers 16 are provided on the roller cover 12, so that the main body 1 is turned over on a carpet or a narrow staircase, and the main body 1 is rotated. It can be operated lightly and stably without being caught on the carpet or falling off.

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

As shown in FIGS. 5 and 6, the roller cover 1
2 a handle hole 17 into which a finger can be inserted, or a handle 20 rotatably supported by a handle shaft 18 of the roller cover 12.
Is accommodated in the concave portion 19 of the roller cover 12.

The operation of the vacuum cleaner configured as described above will be described with reference to FIGS. Handle hole 1
The body 1 can be lifted and carried by inserting a finger into the body 7.
Further, the handle 20 is raised from the concave portion 19 and is held by hand.
Can be carried. When the handle 20 is stored in the recess 19, the roller 10 can be placed on the floor surface and the main body 1 can be turned over.

As described above, according to the present embodiment, the main body 1 can be lifted and carried by the handle hole 17 or the handle 20 provided in the roller cover 12 while lying down, and the body 1 can be placed on the floor surface. Therefore, operability can be improved.

[0026]

As is apparent from the above description of the embodiment, according to the present invention, since the roller is provided with the protrusion or the protrusion by the first means, the main body is turned over at the center of the carpet room or the stairs. , And can be cleaned while rotating the main body. In addition, since the main body does not move on the carpet, the operability can be easily cleaned. Further, when the roller is used while being rolled, it is possible to prevent furniture and the like from being damaged when the roller comes into contact with furniture and the like.

In the second means, since the caster rollers are provided on the side surfaces of the rollers, the same effect as in the first means is obtained when the main body is placed on its side.

In the third means, a handle hole or a handle is provided on the side surface of the roller, so that the body can be lifted and transported while being laid down, and the body can be easily laid down on a floor surface, stairs, or the like. It is possible to realize a vacuum cleaner having excellent operability that can be placed in a vacuum cleaner.

[Brief description of the drawings]

FIG. 1 is a plan view and a sectional 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 sectional view of the roller.

FIG. 4 is a sectional view of a roller according to a second embodiment of the present invention.

FIG. 5 is a sectional view of a roller cover according to a third embodiment of the present invention.

FIG. 6 is a sectional view of the roller.

FIG. 7 is a side view of a conventional vacuum cleaner.

FIG. 8 is a plan view of the vacuum cleaner.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Main body 10 Roller 12 Roller cover 13 Projection

────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Masafumi Okamoto 1006 Kazuma Kadoma, Osaka Prefecture Matsushita Electric Industrial Co., Ltd. (56) References JP-A-1-314523 (JP, A) JP-A-5- 42070 (JP, A) Japanese Utility Model 2-63767 (JP, U) (58) Field surveyed (Int. Cl. ⁷ , DB name) A47L 9/00 102

Claims (5)

(57) [Claims] In 1. A body side surfaces, and includes a pair of rollers rotatably centroid position near <br/> body, the side surface of the roller
A protrusion was provided, and the protrusion of the roller was grounded to the floor surface.
Vacuum cleaner that can support the main body rotatably at times . 2. The vacuum cleaner according to claim 1 , wherein a protrusion is provided on the protrusion. 3. An electric vacuum cleaner comprising a pair of rollers rotatably provided on both side surfaces of a main body, wherein a plurality of caster rollers are attached to side surfaces of the rollers. 4. An electric vacuum cleaner comprising a pair of rollers rotatably provided on both side surfaces of a main body, wherein a handle hole is provided on a side surface of the roller. 5. An electric vacuum cleaner comprising a pair of rollers rotatably provided on both side surfaces of a main body, wherein a handle is rotatably mounted in a concave portion on a side surface of the roller.