JPH0377727B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a floor nozzle for a vacuum cleaner used in general households.

BACKGROUND ART Conventionally, this type of seed bed nozzle generally had a configuration as shown in Japanese Patent Publication No. 59-52548. The configuration will be explained below with reference to the drawings.

In FIG. 4, a joint 1 communicating with the suction side of the vacuum cleaner is connected to a nozzle body 3 consisting of an upper nozzle member 2a and a lower nozzle member 2b. 4
6 is a brush holder that holds the brush body 5 and moves it up and down, and 6 is a suction port that sucks in dust on the carpet and the floor.

Problems to be Solved by the Invention In such a conventional floor nozzle of a vacuum cleaner, when cleaning the floor, the brush body 5 is made to protrude downward so as to sweep over the floor without damaging the floor. It has a sweeping effect, and when cleaning the carpet, the brush body 5 is housed inside to prevent it from digging into the hair of the carpet. However, when cleaning the carpet, fibrous dust such as lint on the same carpet cannot be sufficiently captured by the suction force and the slight scraping of the brush body 5. There was a lot of dust left on the carpet, and the performance was inadequate. Further, there was a problem in that the thread waste stuck to the brush body 5 remained attached to the brush body 5 without being suctioned, resulting in a very unsanitary situation.

The present invention solves these problems,
To provide a floor nozzle for a vacuum cleaner that can reliably capture dust such as lint.

Means for Solving the Problems In order to solve the above-mentioned problems, the present invention provides a suction port at the bottom of the floor nozzle body which is provided with a joint for connection to the vacuum cleaner side, and dust particles located separately from the suction port. The suction port and the dust collecting part are connected to the joint, and the dust collecting part has a raised brush on its circumferential surface, and the dust collecting part has a raised brush on its circumferential surface, and the dust collecting part has a raised brush on its circumferential surface. It is equipped with a rotor that rotates reversely in conjunction with the rotor, and a scraping plate having a brush that scrapes off dust such as lint caught by the brush of the rotor in conjunction with the rotor's reverse rotation. It is.

Function The present invention is provided with a dust collecting section as described above, and this dust collecting section is provided with a rotor having a raised brush on its circumferential surface and a scraping plate for scraping off dust attached to this brushed brush. When cleaning the yutan, lint and the like are captured by this raised brush, and further separated from the same brush by a scraping plate and sucked.

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

In FIGS. 1 to 3, reference numeral 11 denotes a floor nozzle body constructed by connecting an upper nozzle member 12 and a lower nozzle member 13 via a bumper 14, and the rear central part thereof is formed in a circular shape to form a joint 15. Cylindrical part 16
It is arranged so that it can rotate freely. 17 is a roller disposed below the joint 15. Further, the lower nozzle member 13 of the floor nozzle main body 11 has a suction port 18.
A dust suction section 20 consisting of a suction groove 19 extending left and right from this and having an open outer end, and slit-shaped openings 21 located parallel to the dust suction section 20 in front and behind the dust suction section 20 are formed.

Inside the floor nozzle body 11, there is a pair of brush bodies 22 and a brush adjustment body 23 that moves the brush bodies up and down.
is provided. The brush body 22 has a structure in which brushes 25 are installed in a bundle on a brush holder 24, and guide holes 26 are formed at both ends of each brush holder 24, and bosses 27 are provided that protrude from the upper nozzle member 12.
It is held so that it can move up and down by fitting into it. As the brush 25 moves up and down, it moves downward through the slit-like opening 21 and into the lower part of the floor nozzle body 11.

Reference numeral 28 denotes a lever of the brush adjustment body 23, which is exposed outward from the window hole 29 of the upper nozzle member 12.

Further, a dust collecting section 30 is provided behind the suction port 18 and is spaced apart from the suction port 18 . A rotor 31 that can rotate freely and a scraping plate 32 that can freely move back and forth are arranged in the dust collecting section 30, and a raised brush 3 is provided at the corresponding part of the rotor 31 and scraping plate 32.
3. A brush 34 is installed. Here, the raised brush 33 of one rotor 31 is set in an inclined shape so that its tip is located diagonally backward, and the raised brush 34 of the other scraping plate 32 is set in an inclined shape so that its raw end is located diagonally upward. Further, the rotor 31 is provided with a protrusion 35 for preventing rotation, and the scraping plate 32 is provided with a spring (not shown) for biasing it toward the rotor 31.

The suction port 18 and the joint 15 communicate with each other through a ventilation path 36 formed by the upper nozzle member 12 and a partition wall 37. Further, a shielding plate 38 that slides on the partition wall 37 is formed from the rear part of the brush adjustment body 23, and openings 39,
An opening 40 is provided. Then, only when the lever 28 is slid toward the centermost side of the floor nozzle body, the openings 39 and 40 match, and the auxiliary passage 41 that communicates the dust collecting section 30 and the ventilation passage 36 is set. I have to. To explain the operation in the above configuration, the protrusion of the brush 25 of the brush body 22 is adjusted according to the condition of the surface to be cleaned. If you want to obtain a strong suction force on the surface to be cleaned, such as tatami mats, the suction force is set to a medium level, and if you want to obtain a weak suction force, the suction force is set to the maximum force. To adjust the protrusion of the brush 25, use the lever 2.
This is done by sliding the brush adjustment body 23 left and right through the cam grooves 8 and moving the brush body 22 up and down along the cam grooves (not shown).

Dust from the floor or tatami surface flows into the floor nozzle main body 11 via the suction port 18 and the suction groove 19 extending left and right from the suction port 18, and then flows from the joint 15 to the vacuum cleaner.

By the way, when cleaning the carpet,
Set the lever 28 to the centermost position (that is, the brush 25 is in the uppermost position).
At this time, the opening 40 of the shielding plate 38 in the brush adjustment body 23 and the opening 39 of the partition wall 37 match, and the auxiliary passage 4 connects the dust collecting section 30 and the ventilation passage 36.
1 is set. Therefore, the dust collecting section 3
The fiber dust such as thread waste caught in the air passage 36 is vigorously sucked into the air passage 36.

Next, the situation in which thread waste is captured in the dust collecting section 30 will be explained.

When the floor nozzle main body 11 is pulled back, the protrusion 35 of the rotor 31 is rotated forward as if by a carpet, and the raised brush 33 is rotated as shown in FIG.
It is exposed on the side. Therefore, since this raised brush 33 is tilted backward, thread waste is captured. When the floor nozzle main body 11 is then pushed forward, the rotor 31 rotates backward via the protrusion 35, and the raised brush 33 enters inside.
It faces the raised brush 34 of the scraping plate 32. Furthermore, when the floor nozzle main body 11 is retreated, the protrusion 35
The rotor 31 rotates forward via the brush 34, and at this time, the thread waste from the nap brush 33 is scraped off by the nap brush 34. However, no lint remains on the raised brush 33 exposed on the carpet surface, and dust can be collected in a fresh state.

The thread waste attached to the raised brush 34 is vigorously sucked into the ventilation path 36 by the suction force, and a large amount of dust does not stay in the dust collecting section 30. Note that when the airflow flows from the dust collection section 30, the amount of dust flowing from the suction port 18 is reduced, but the leakage from the dust collection section 30 is not necessary to the extent that it affects the dust collection performance, and the dust collection section 30 By providing this, the thread waste collection performance becomes very easy to use as a whole.

In the above embodiment, a projection is provided from the circumferential surface of the rotor as a specific means for rotating the rotor. However, it is also possible to connect the roller 17 and the rotor through a transmission means such as a belt. In short, as long as the rotor rotates in reverse in conjunction with the forward and backward movement of the floor nozzle body, there are no restrictions on the means used.

Effects of the Invention As explained above, the floor nozzle of the vacuum cleaner of the present invention constitutes a dust collection part separated from the suction port,
This dust collection part is equipped with a reversible rotor equipped with a brushed brush and a dust scraping plate from the brush, so that not only normal dust but also lint etc. can be accurately sucked in when cleaning the carpet. As a result, high surface dust collection performance can be ensured, and the structure can be simply configured by providing a dust collection section.

[Brief explanation of drawings]

Fig. 1 is a longitudinal sectional view of a floor nozzle showing an embodiment of the present invention, Fig. 2 is a top view of the same floor nozzle with the upper nozzle member removed, Fig. 3 is an overall perspective view, and Fig. 4 is a FIG. 2 is a vertical cross-sectional view of a floor nozzle showing a conventional example. 11...Floor nozzle body, 15...Joint, 18...
... Suction port, 30 ... Dust collection section, 31 ... Rotor, 32 ... Scraping plate, 33 ... Raised brush.

Claims (1)

[Claims] 1 At the bottom of the floor nozzle body, which is provided with a joint for connection to the vacuum cleaner side, a suction port and a dust collection section located isolated from the suction port are provided, and these suction ports and dust collection section are arranged as described above. The dust collecting section has a brush on its circumferential surface, and a rotor that rotates in reverse in conjunction with the forward and backward movement of the floor nozzle body. A scraping plate is disposed at the lower part of one side of the collecting part and has a brushed brush that scrapes off dust such as thread waste captured by the brushed brush of the rotor in conjunction with the reverse rotation of the rotor. vacuum cleaner floor nozzle.