JP2003093281A - Suction nozzle for vacuum cleaner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a suction nozzle for a vacuum cleaner which can remove relatively large dust efficiently even at a place other than a floor by the wall. SOLUTION: In this suction nozzle 1, a suction port has an opening from the lower surface to a part of the front surface of a suction body case 2, a cover 5 composing the front wall of the suction body case 2 is fixed at the suction body case 2 so as to be freely turned vertically, and a pair of wires 14 turning the cover 5 upward when turning a bend 4 and turning the cover 5 downward when returning the bend 4 to its original position is included.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a suction tool for a vacuum cleaner. More specifically, the present invention relates to a suction device for an electric vacuum cleaner that can effectively remove dust accumulated around a wall.

[0002]

2. Description of the Related Art A floor suction device for a commonly used electric vacuum cleaner has a suction opening only on the lower surface of the suction main body case, so that it can be used for vertically extending objects such as near a wall or near the feet of furniture. It was difficult to clean a nearby place. Therefore, as a suction tool that can be cleaned near the wall, when the suction tool is pressed against the wall, a bumper or flap provided on the front surface of the suction tool opens forward or tilts backward,
BACKGROUND ART A suction tool having a structure capable of sucking dust near a wall has been conventionally proposed.

[0003]

SUMMARY OF THE INVENTION This conventional suction device is
By opening the bumpers and flaps near the wall, relatively large debris near the wall can be sucked. But,
Even if you want to suck from the front of the suction tool when cleaning a place other than the wall, you can not open the bumper or flap in a place other than the wall, and compare the extent that it passes through the gap between the bumper or flap and the surface to be cleaned. Only small dust could be sucked in.

The present invention has been made to solve the above problems, and an object of the present invention is to provide a suction tool for an electric vacuum cleaner capable of efficiently removing relatively large dust even at a place other than a wall. To do.

[0005]

According to the suction tool for an electric vacuum cleaner of the present invention, at least a suction port is formed on the lower surface of the suction body case, and a bend is rotatably attached to the rear side of the suction body case. A suction tool for an electric vacuum cleaner, wherein the suction port is opened from a lower surface of the suction main body case to at least a part of a front surface thereof, and a cover forming a front wall of the suction main body case is arranged in a vertical direction in the suction main body case. At least one of which is rotatably attached to the cover and rotates the cover upward when the bend is rotated; and rotates the cover downward when the bend is returned to its original position. It is characterized by comprising an operating means.

It is preferable that a rotary pipe interlocking with the axial rotation of the bend is rotatably attached to the rear side of the suction body case, and the operating means is connected to the rotary pipe.

It is preferable that the operating means comprises at least one linear member having one end connected to the cover.

It is preferable that the operating means comprises a pair of linear members each having one end connected to both ends of the cover.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION A suction tool for a vacuum cleaner according to the present invention will be described below with reference to the drawings.

FIG. 1 is a plan view showing an embodiment of a suction tool for an electric vacuum cleaner according to the present invention, FIG. 2 is a cross-sectional explanatory view of the suction tool of FIG. 1, and FIG. 3 shows an inside of the suction tool of FIG. FIG. 4 is a side view showing a state where the cover of the suction tool of FIG. 1 is opened.

The suction tool 1 shown in FIGS. 1 to 3 includes a suction body case 2 having a suction port 6 formed in a wide area from the lower surface to the front surface, and bearing portions 7 (at both ends inside the suction body case 2). (See FIG. 3), a rotating brush 3 rotatably supported by the suction brush, a bend 4 rotatably and swingably connected to the rear surface of the suction body case 2, and a front portion 6b of the suction port 6 of the suction body case 2. And a cover 5 forming a front wall of the suction body case 2 for closing the suction main body case 2.

The rotary pipe 16 is provided on the rear side of the suction body case 2 in the width direction (left-right direction) of the suction body case 2.
The bend 4 is rotatably supported by the rotary pipe 16, and the bend 4 is rotatably supported in the vertical direction with respect to the suction body case 2 by a shaft (not shown).

Further, a rotary pipe 16 interlocking with the axial rotation of the bend 4 is rotatably attached to the rear side of the suction body case 2. As shown in FIG. 1, since the projection 4a protruding from the bend 4 is engaged with the through hole 16a of the rotary pipe 16, the bend 4 and the rotary pipe 16 are integrally rotated in the axial direction. can do. Further, as shown in FIG. 2, the spherical portion 4b at one end of the bend 4 is attached to the rotary pipe 16
Since it is supported by the internal spherical recess 16b, the bend 4 can be tilted in the front-back direction with respect to the rotary pipe 16.

The cover 5 is made of a hollow body made of synthetic resin or the like, and as shown in FIGS. 1 to 3, arm portions 8 are projectingly provided on both sides, and the arm portions 8 on both sides of the suction main body case 2 are provided. The shaft portions 9 projecting from both ends are rotatably supported in the vertical direction.

As shown in FIGS. 2 and 3, the suction tool 1 according to the present embodiment serves as an operating means for opening and closing the cover 5 in conjunction with the rotation of the bend 4 about its axis.
A pair of wires 14 are provided.

As shown in FIGS. 2 and 3, the pair of wires 14 are connected at their both ends to the connecting portions 5a at both inner ends of the cover 5 and the connecting portions 16c at both outer peripheral ends of the rotary pipe 16, respectively, and are sucked. It is hooked on a plurality of guide pins 2 a inside the main body case 2.

By rotating the bend 4 to the left or right around its axis, the connecting portion 16c on the outer circumference of the rotary pipe 16 also moves upward or downward, whereby the pair of wires 14 is pulled by the connecting portion 16c. The cover 5 is rotated upward, and conversely, when the bend 4 is rotated to the intermediate position of the suction body case 2, the tension of the pair of wires 14 is reduced and the cover 5 is rotated downward. After being bent, the bend 4 can be tilted along the width direction of the suction body case 2 (see FIG. 1), which facilitates cleaning of corners and narrow portions.

In the present invention, at least one operating means is provided.
The material of the linear member is not particularly limited as long as the linear member is provided, and a linear member made of various materials such as a string and a wire can be used. In particular, steel wires are preferable because they are inexpensive and have high strength and flexibility.

By providing a pair of linear members on the right and left sides of the rotary pipe 16 as in the present embodiment, the load per linear member is reduced and the cover 5 is smoothed by the symmetrical tension. It can be rotated up and down.

The operating means of the present invention includes various aspects such as a link mechanism or a hydraulic control mechanism in addition to the above-mentioned linear member.

The rotating brush 3 shown in FIGS. 2 to 3 is rotatably supported inside the suction body case 2 at a position slightly protruding from both the lower portion 6a and the front portion 6b of the suction port 6.

As shown in FIGS. 2 and 3, the rotary brush 3 may be a conventionally used rotary brush, and four grooves 10 are provided in the longitudinal direction of the outer periphery at 90 ° intervals and spirally. The rotary shaft 11 is engraved into a shape, and the strip-shaped pile material 12 and the rubber blade 15 are embedded along the groove 10, respectively. The rotating brush 3 can be rotated by transmitting driving force of an electric motor (not shown) or the like built in the suction body case 2 via a transmission belt (not shown) or the like. Alternatively, an opening may be formed above the rotary brush 3 of the suction main body case 2 to take in outside air, and the outside air sucked from the opening may be received by a pile material of the rotating brush to rotate the rotating brush.

In the suction tool of the present embodiment configured as described above, in the case of normal floor cleaning, as shown in FIGS. It is in a state of standing in a substantially right angle direction. The cover 5 is the wire 1
Since the tension of No. 4 does not act, it descends to the lower position by its own weight, so the front side portion 6b of the suction port 6 is closed by the cover 5 with good sealing property, and only the lower side portion 6a of the suction port 6 is open. . Therefore, since there is no loss of air volume, a desired air volume can be obtained in the lower portion 6a, and the scraping effect of the rotary brush 3 is also added, so that the floor surface can be cleaned efficiently.

On the other hand, as shown in FIG. 4, when cleaning a wall, the bend 4 is rotated and tilted toward the suction body case 2. The cover 5 rotates above the suction tool 1 with the shaft portion 9 as a fulcrum by the tension of the wire 14, and as a result, the front portion 6b of the suction port 6 can be opened.

In the state shown in FIG. 4, the suction tool 1 can be made to have a very close horizontal distance between the cover 5 forming the front wall and the front side portion 6b of the suction port 6, which is sufficient for dust near the wall. Cleaning ability can be obtained. Moreover, since the dust near the wall can be sucked from both the lower portion 6a and the front portion 6b of the suction port 6, and the rotary brush 3 scrapes the dust near the wall by approaching or contacting the wall surface.
Dust on the wall can be removed efficiently.

Further, when the bend 4 is tilted down, the cover 5 is opened to open the front portion 6b of the suction port 6, so that it is possible to efficiently remove dust in a narrow space under the bed, especially on a wall under the bed. Can be removed well.

When the cleaning of the wall is completed and the normal cleaning of the floor surface is resumed, the tension of the wire 14 acts on the cover 5 by separating the suction tool 1 from the wall and returning the bend 4 to the original position. The cover 5 rotates downward due to its own weight and closes the front portion 6b of the suction port 6 with good sealing property, so that the normal floor surface can be cleaned again.

In the above embodiment, the cover is opened when the bend is rotated in the left-right direction. However, as another embodiment of the present invention, the bend is rotated in the vertical direction. It is also possible to adopt a configuration in which the cover is opened at that time. With such a configuration, the usability is further improved in a place such as under the bed where the height is low.

In the structure in which the cover 5 is opened and closed in conjunction with the vertical movement of the bend 4, the operation means such as a wire is connected between the lower end of the bend 4 and the center of the inside of the cover 5. It is configured by In this case, if wires are respectively connected to the cover 5 from both the bend 4 and the rotary pipe 16, the cover 5 can be opened and closed by rotating the bend 4 in either the vertical direction or the horizontal direction.

In the above embodiments, the floor suction tool having the rotating brush has been described as an example, but the present invention is not limited to this, and the floor suction tool without the rotating brush. The present invention can also be applied to.

[0031]

As described above, in the floor suction device of the present invention, the user can suction a relatively large amount of dust even at a place other than the wall by opening the cover as needed.

Further, when cleaning the wall side, the suction tool can make the horizontal distance between the cover forming the front wall and the front side portion of the suction port very close to each other, so that the suction tool can be sufficiently cleaned against dust on the wall side. You can gain the ability. Moreover, since both the suction force of the vacuum cleaner and the scraping effect of the rotary brush can be utilized when cleaning the wall side, dust accumulated on the wall side can be efficiently removed.

[Brief description of drawings]

FIG. 1 is a plan view showing an electric vacuum cleaner according to an embodiment of a suction tool of the present invention.

FIG. 2 is a cross-sectional explanatory view of the suction tool of FIG.

FIG. 3 is a view of the inside of the suction tool of FIG. 1 viewed from above.

FIG. 4 is a side view showing a state where the cover of the suction tool of FIG. 1 is opened.

[Explanation of symbols]

1 suction tool 2 Suction body case 3 rotating brush 4 Bend 5 cover 6 Suction port 14 wires

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Akihiro Morita             2-5-3 Keihan Hondori, Moriguchi City, Osaka Prefecture             Within Yo Denki Co., Ltd. (72) Inventor Hiromichi Matsuhashi             2-5-3 Keihan Hondori, Moriguchi City, Osaka Prefecture             Within Yo Denki Co., Ltd. (72) Inventor Chiyoyo Matsumoto             2-5-3 Keihan Hondori, Moriguchi City, Osaka Prefecture             Within Yo Denki Co., Ltd. (72) Inventor Yoshihiro Mori             2-5-3 Keihan Hondori, Moriguchi City, Osaka Prefecture             Within Yo Denki Co., Ltd. F term (reference) 3B061 AA06 AA25 AA45 AD03

Claims (4)

[Claims] 1. A suction tool for an electric vacuum cleaner, wherein a suction port is formed at least on a lower surface of a suction body case, and a bend is rotatably attached to a rear side of the suction body case, wherein the suction port comprises: A cover which is opened from the lower surface to at least a part of the front surface of the suction body case and which constitutes a front wall of the suction body case is attached to the suction body case so as to be vertically rotatable, and the bend is rotated. A suction device for an electric vacuum cleaner comprising at least one operation means for rotating the cover upward sometimes and rotating the cover downward when the bend is returned to the original position. 2. A rotary pipe interlocking with the axial rotation of the bend is rotatably attached to the rear side of the suction body case, and the operating means is connected to the rotary pipe. The suction tool for an electric vacuum cleaner according to 1. 3. The suction tool for an electric vacuum cleaner according to claim 1, wherein the operating means includes at least one linear member having one end connected to the cover. 4. The suction tool for an electric vacuum cleaner according to claim 3, wherein the operating means includes a pair of linear members each having one end connected to both ends of the cover.