JP2000157461A - Sucking mouth body for vacuum cleaner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To promote efficiency of dust collection with a simple constitution in which this sucking mouth body gathers up dust suck as thread rubbish and hair entangled with a carpet, or the like, and sucks it by equipping an airtight piece to open and close at the front of the dust-sucking mouth correspondingly to an advance and a retreat of the dust-sucking mouth body for a vacuum cleaner and placing multiple projections on the surface of the airtight piece on the dust-sucking mouth side. SOLUTION: When a sucking mouth body 1 advances, an airtight piece 13b moves backward to touch to a rear stopper part 11a by friction between a floor surface and sheet-state parts 16c, 16d of an auxiliary piece 16 that touches to the floor surface. At this moment, a sheet-state part 16e touches to the floor surface. The front of a dust-sucking mouth 14 then opens, so that it is easy to suck large trash and dust near a wall corner. When the sucking mouth body 1 retreats, the airtight piece 13b moves forward by friction between the floor surface and the sheet-state part 16e, 16d that touch to the floor surface until the airtight piece 13b touches to a front stopper part 10a. The sheet-state part 16c touches top the floor surface at this moment, and the sucking mouth 14 closes. Thus, this sucking mouth body for a vacuum cleaner heightens a vacuum of the dust-sucking mouth 14 part and improves sucking power.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a suction port for a vacuum cleaner, which sucks dust together with a suction airflow from a dust suction port by driving a vacuum cleaner body.

[0002]

2. Description of the Related Art A conventional suction port for a vacuum cleaner will be described with reference to the drawings. FIG. 5 shows a conventional suction unit 1 for a vacuum cleaner.
FIG. The outer shape of the suction port body 1 is formed by the upper case 2 and the lower case 3. A drive pipe 4 connected to a suction pipe 5 for connecting a long pipe (not shown) connected to a vacuum cleaner is sandwiched between an upper case 2 and a lower case 3, and the drive pipe 4 raises and lowers the long pipe. The angle is adjusted.

The lower case 3 has a dust suction port 1 facing the floor surface F.
4 is open. Dust is sucked in from the dust suction port 14, travels in the fluid passage 9 in the direction of the arrow B together with the suction airflow, and is collected in the vacuum cleaner main body.
Before and after the dust suction port 14, the wheels 7 which rotate and move the suction port body 1 while keeping the distance between the dust suction port 14 and the floor surface F constant;
8 are provided.

A flexible body 13 having an auxiliary piece 16 and a sealing piece 13b is provided in front of the dust suction port 14. Auxiliary piece 1
Due to the frictional force between the floor 6 and the floor F, the sealing piece 13b pivots rearward when the suction opening body 1 advances, opening the front of the dust suction opening 14 to easily suck in large-sized dust and dust on the wall. . When the suction port body 1 retreats, the sealing piece 13b rotates forward, closes the front of the dust suction port 14, and increases the degree of vacuum in the dust suction port 14 to improve the dust suction force. A brush 17 is provided behind the dust suction port 14 so that dust on the floor surface F is scraped up and dust is sucked from the dust suction port 14.

[0005]

However, according to such a suction opening 1, when the surface to be cleaned is a carpet or the like, the brush 17 alone has a small effect of scraping cotton garbage, hair and the like entangled in the carpet and the like. , Dust collection remains. If a rotary brush is provided in the suction port body 1, the effect of scraping up dust such as a carpet can be improved, but it becomes expensive and the tip of the rotary brush is about 5 mm away from the grounding surface, so that the dust in the deep part of the carpet is increased. There was a problem that it was not possible to sufficiently scrape.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a suction port for a vacuum cleaner which has a simple structure and has a large effect of scraping cotton dust, hair and the like entangled in a carpet or the like.

[0007]

SUMMARY OF THE INVENTION In order to achieve the above object, an invention according to a first aspect of the present invention is directed to a vacuum cleaner suction port provided with a dust suction port for sucking dust. A sealing piece is provided at the front of the body so as to be rotatable and opens and closes the front of the dust suction port in accordance with the forward and backward movement of the suction port body for the vacuum cleaner, and a plurality of sealing pieces are provided on the surface of the sealing piece on the dust suction port side. Are provided.

According to this structure, when the sealing piece for opening and closing the front part of the vacuum cleaner suction opening is closed in accordance with the forward and backward movement of the vacuum cleaner suction opening, the projection is formed by the vacuum cleaner suction. With the movement of the mouth, the dust is sucked through the dust suction port while scraping up the cotton dust, hair and the like entangled on the surface to be cleaned such as a carpet.

According to a second aspect of the present invention, in the suction opening for an electric vacuum cleaner according to the first aspect, the projection is formed integrally with the sealing piece and has a substantially conical shape. And According to this configuration, the cotton dust, hair and the like entangled on the surface to be cleaned such as a carpet or the like are lifted up by the substantially conical projections, are separated from the projections by the dust absorbing force from the dust suction port, and are sucked up.

According to a third aspect of the present invention, in the suction opening for a vacuum cleaner according to the first or second aspect, a projection row in which a plurality of the projections are arranged in a longitudinal direction of the sealing piece is provided. A plurality of rows are provided, and the positions of the protrusions in the longitudinal direction are different between two adjacent rows. According to this configuration, when the sealing piece is closed, the protrusion lifts up cotton trash or hair entangled on the surface to be cleaned such as a carpet at a plurality of depths and at different positions in the horizontal direction to collect dust from the dust suction port. I do.

According to a fourth aspect of the present invention, in the suction port body for a vacuum cleaner according to any one of the first to third aspects, at least a part of the projection is provided near a lower end of the sealing piece. It is characterized by being arranged. According to this configuration, the protrusions scoop up cotton dust, hair, and the like entangled in a deep portion of a carpet or the like into which the suction port body for a vacuum cleaner sinks, and sucks dust from the dust suction port.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to the drawings. For convenience of explanation, the same members as those in FIG. 5 of the conventional example are denoted by the same reference numerals. 1 and 2 are a side sectional view and a bottom view showing a suction port for a vacuum cleaner according to an embodiment of the present invention. The outer shape of the suction port body 1 is formed by the upper case 2 and the lower case 3. A drive pipe 4 connected to a suction pipe 5 for connecting a long pipe (not shown) connected to a vacuum cleaner is sandwiched between an upper case 2 and a lower case 3, and the drive pipe 4 raises and lowers the long pipe. The angle is adjusted.

The lower case 3 has a dust suction port 1 facing the floor surface F.
4 is open. Dust is sucked in from the dust suction port 14, travels in the fluid passage 9 in the direction of arrow B together with the suction airflow, and is collected by the vacuum cleaner main body.
Before and after the dust suction port 14, the wheels 7 that rotate and move the suction port body 1 while keeping the distance between the dust suction port 14 and the floor F constant,
8 are provided.

A bumper 6 is provided at the front of the suction port body 1 so as to buffer the collision of the suction port body 1 with a wall or the like. A brush body 17 that scrapes up dust entangled in a carpet or the like is provided behind the dust suction port 14. A flexible body 13 is installed in front of the dust suction port 14, and an auxiliary piece 16 is attached to both ends of the flexible body 13 so as to be in contact with the floor surface F. The body 13 rotates.

FIG. 3 is an exploded perspective view showing details of the flexible body 13. As shown in FIG. A sealing piece 13b protrudes from the support shaft 13a, and an insertion shaft 13e that fits into the insertion hole 16a of the auxiliary piece 16 is formed at both ends of the support shaft 13a. The sealing piece 13b is provided with a plurality of conical projections 13g, and two projection rows D and E are formed by the plurality of projections 13g arranged in the longitudinal direction of the sealing piece 13b. Further, the support shaft 13a and the auxiliary piece 1
The locking piece 13f is attached to the support shaft 1 so that
3a, a locking groove 16b into which the locking piece 13f is fitted.
Are provided on the auxiliary piece 16.

The auxiliary piece 16 has three thin plate-like portions 16c, 1
6d and 16e are formed radially around the insertion hole 16a, and have a length capable of contacting the floor surface F. Also,
The support shaft 13a, the sealing piece 13b and the projection 13g are integrally formed of a hard resin material such as ABS resin, polypropylene or polyethylene, and the auxiliary piece 16 is formed of a soft material such as hard rubber.

FIG. 4 is a detailed sectional view of a main part showing a front part of the suction port body 1 and shows a state where the above-mentioned flexible body 13 is attached. A substantially J-shaped curved plate 11 provided on the lower case 3
And the curved surface portion 10b of the detachable locking claw 10
a is formed, and the groove 12
The support shaft 13a of the flexible body 13 is inserted into the support member 13 so that the support shaft 13a is not dropped by the locking claw 10. Also,
The rotation range α of the flexible body 13 is regulated by the contact of the sealing piece 13b with the front stopper 10a provided on the locking claw 10 and the rear stopper 11a provided on the curved plate 11.

When the suction port body 1 moves forward, the sealing piece 13b rotates rearward due to the frictional force between the thin plate portions 16c and 16d of the auxiliary piece 16 abutting on the floor surface F and the floor surface F, and the rear stopper. It contacts the part 11a. At this time, the thin plate-shaped portion 16e abuts on the floor surface F, and the front of the dust suction port 14 is opened to easily suck in large-sized dust and dust on the wall.

When the suction port body 1 is retracted, the sealing piece 13b is rotated forward until the sealing piece 13b comes into contact with the front stopper 10a due to the frictional force between the thin plate portions 16e and 16d contacting the floor surface F and the floor surface F. I do. At this time, the thin plate-like portion 16c abuts on the floor surface F, and the front of the dust suction port 14 is closed, so that the degree of vacuum at the dust suction port 14 is increased to improve the dust suction force.

When the surface to be cleaned is a carpet or the like, the wheels 7 and 8 sink into the carpet or the like, and the projection 13g becomes the suction port 1
With the receding, the cotton dust, hair and the like entangled in the carpet or the like are scraped up and sucked from the dust suction port 14. Therefore, the effect of easily scraping a carpet or the like can be obtained, and the dust collection efficiency can be improved. At this time, since the protrusion 13g has a conical shape, the scraped-up cotton dust, hair, and the like are easily separated by dust-absorbing power to prevent entanglement.

Further, as in the present embodiment, the plurality of projection rows D and E (see FIG. 3) can efficiently scrape up cotton trash, hair and the like having different depths such as carpets. When the position of the projection 13g in the projection row D in the longitudinal direction of the sealing piece 13b and the position of the projection 13g in the projection row E in the longitudinal direction are different from each other, the scraping interval is increased, and the dust collection effect is increased. Is desirable. 2 rows of projections
More than rows may be formed. Furthermore, the projection 13g is arranged near the lower end 13h (see FIG. 3) of the sealing piece 13b,
Dust collection efficiency can be further improved because the carpet or the like can be scraped up to a deep portion of the surface to be cleaned.

[0022]

According to the first aspect of the present invention, cotton dust, hair and the like entangled in a carpet or the like are scraped up and absorbed by a simple structure, so that dust collection efficiency can be improved.

According to the second aspect of the present invention, since the protrusion is formed integrally with the sealing piece by molding or the like, the effect of scraping cotton garbage, hair and the like entangled in the carpet or the like without increasing the manufacturing cost is obtained. Obtainable. And since the protrusion is conical, the scraped-up cotton dust, hair, etc. can be easily detached, and the entanglement of cotton dust, hair, etc. can be prevented.

According to the third aspect of the present invention, cotton dust, hair and the like having different depths such as carpets can be efficiently scraped up, and the interval of scraping can be increased to improve the dust collection efficiency. .

According to the fourth aspect of the present invention, the dust collection efficiency can be further improved because it can be scraped up to the deep portion of the surface to be cleaned such as a carpet.

[Brief description of the drawings]

FIG. 1 is a side sectional view of a suction port for a vacuum cleaner according to an embodiment of the present invention.

FIG. 2 is a bottom view of the suction port for a vacuum cleaner according to the embodiment of the present invention.

FIG. 3 is an exploded perspective view showing a flexible body of the suction port for the vacuum cleaner according to the embodiment of the present invention.

FIG. 4 is a detailed view of a main part of the suction port body for the vacuum cleaner according to the embodiment of the present invention.

FIG. 5 is a side sectional view of a suction port body for a vacuum cleaner according to a conventional embodiment.

[Explanation of symbols]

 Reference Signs List 1 suction port body 2 upper case 3 lower case 4 drive pipe 6 bumper 7, 8 wheel 13 flexible body 13b sealing piece 14 dust suction port 16 auxiliary piece

 ──────────────────────────────────────────────────の Continued on the front page (72) Inventor Mikio Yagi 22-22 Nagaikecho, Abeno-ku, Osaka-shi, Osaka Inside Sharp Corporation (72) Inventor Genji 22-22 Nagaikecho, Abeno-ku, Osaka-shi, Osaka Sharp Corporation F-term (reference) 3B061 AA06 AA45 AA52 AA57

Claims (4)

[Claims] 1. A vacuum cleaner suction port having a dust suction port for sucking dust, wherein the suction port is rotatably provided at a front portion of the vacuum cleaner suction port and advances the vacuum cleaner suction port. A suction port body for a vacuum cleaner, comprising: a sealing piece that opens and closes the front of the dust suction port in response to retreat, and a plurality of protrusions are provided on a surface of the sealing piece on the dust suction port side. 2. The suction port body for a vacuum cleaner according to claim 1, wherein the projection is formed integrally with the sealing piece and has a substantially conical shape. 3. A plurality of projection rows in which a plurality of the projections are arranged in a longitudinal direction of the sealing piece, and the positions of the projections in the adjacent two rows are different in the longitudinal direction. The suction port body for a vacuum cleaner according to claim 1 or 2. 4. The suction port for a vacuum cleaner according to claim 1, wherein at least a part of the projections is arranged near a lower end of the sealing piece.