JPH0377726B2 - - 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, with this product, when cleaning the carpet, lint and other fibrous dust on the same carpet is removed by the suction force and the brush body 5.
It is not possible to sufficiently capture it by only slightly scraping the
However, there was a lot of dust remaining on the carpet, resulting in insufficient performance. 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 problems, the present invention has a floor nozzle which has a joint for connection to the vacuum cleaner side, and has a suction port that has a brush that can move up and down at the bottom of the main body. A dust collecting section is provided which is located separately from the suction port, and the suction port and the dust collecting section are communicated with the joint through a ventilation passage, and the dust collecting section is provided with a raised brush on the circumferential surface. A rotor that rotates in conjunction with the forward and backward movement of the floor nozzle body, and a rotor that is located at the lower part of one side of the dust collection part facing the circumferential surface of the rotor, and is captured by the brushed brush of the rotor. A scraping plate having a raised brush is provided to scrape off dust such as thread waste in conjunction with the reversal rotation of the rotor, and a scraping plate is provided in the communication portion between the dust collecting section and the ventilation passage to control opening and closing of the scraping plate. Install a shielding plate to
This shielding plate is linked to a brush adjustment body that moves the brush up and down and is set to open when the brush is in the retracted position.

Function The present invention is provided with a dust collecting section as described above, and the flow of air to the dust collecting section can be opened and closed by a shielding plate that opens and closes between the dust collecting section and the ventilation path.
It maintains a strong dust suction power with little leakage on the floor surface, and on the carpet, the dust such as lint collected by the dust collection part is sucked into the ventilation passage, allowing efficient cleaning.

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 into a circular shape to form a joint 15. Approximately cylindrical part 1
It is rotatably arranged at 6. 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 1.
8 and 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. A pair of brush bodies 22 and a brush adjustment body 23 for vertically moving the brush bodies 22 are provided within the floor nozzle body 11. The brush body 22 is attached to a brush holder 24 with a brush 25
The guide holes 26 formed at both ends of each brush holder 24 are fitted into bosses 27 protruding from the upper nozzle member 12, thereby being held movable up and down. and brush 2
5 projects and retracts from the bottom of the floor nozzle main body 11 through the slit-like opening 21 as it moves up and down.

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 raising brush 33 of one rotor 31 is set in an inclined shape so that its tip is positioned diagonally backward, and the tip of the raising brush 34 of the other scraping plate 32 is positioned 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 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 an auxiliary passage 41 communicating between the dust collecting section 30 and the ventilation passage 36 is set. ing.

To explain the operation in the above configuration, the brush body 2
2, the protrusion of the brush 25 is adjusted according to the condition of the surface to be cleaned. For example, when the surface to be cleaned is a carpet, the brush 25 is set in the retracted state, and when the surface to be cleaned, such as a tatami mat, a strong suction force is applied. If you want to obtain a weak suction force, set it to a medium amount, and if you want to obtain a weak suction force, set it to the maximum amount. Brush 2 like this
The protrusion adjustment of 5 is performed by sliding the brush adjustment body 23 left and right via the lever 28 and moving the brush body 22 up and down along its cam groove (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 30
The fiber dust such as thread waste captured by the air passage 36 is vigorously sucked into the ventilation path 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 rotates forward on the floor, and the raised brush 33 is exposed on the floor as shown in FIG. 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 the interior and faces the raised brush 34 of the scraping plate 32.
Furthermore, when the floor nozzle main body 11 is retreated, the rotor 31 rotates forward again via the protrusion 35, and at this time, the thread waste from the raised brush 33 is scraped off by the raised 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 amount of leakage from the dust collection section 30 is not necessary to the extent that it affects the dust collection performance. By providing this, the lint collection performance is improved and the overall ease of use is improved.

Effects of the Invention As explained above, the floor nozzle of the vacuum cleaner of the present invention has a dust collecting section separated from the suction port, and an auxiliary device that is opened and closed by a shielding plate between the dust collecting section and the ventilation path. Since they are connected through a passageway, reliable surface dust collection performance can be ensured by passing airflow from the dust collection section to suck in lint on the same carpet that requires lint trapping power, and on floors and tatami surfaces, the above-mentioned shielding plate Due to occlusion of
It is able to secure sufficient suction power from deep places such as gaps, and its dust absorption properties are greatly improved. Since the opening and closing of the shielding plate is automatically performed in conjunction with the switching of the brush up and down, there is no erroneous operation and the usability can be greatly improved.

[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, 28 ... Lever, 30 ... Dust collection section, 36 ... Ventilation path, 38 ... Shielding plate, 41 ...
Auxiliary passage.

Claims (1)

[Claims] 1. A floor nozzle with a joint for connection to the vacuum cleaner side. At the bottom of the main body, there is provided a suction port with a brush that can move up and down in the front and back, and a dust collection part located isolated from the suction port. The suction port and the dust collecting section are communicated with the joint through a ventilation passage, and the dust collecting section has a raised brush on its circumferential surface, and rotates in reverse in conjunction with the forward and backward movement of the floor nozzle body. A rotor, which is located at the lower part of one side of the dust collection part facing the circumferential surface of the rotor, and which collects dust such as lint caught by the raised brush of the rotor in conjunction with the reversal rotation of the rotor. A scraping plate having a raised brush for scraping is disposed, and a shielding plate for controlling the opening/closing of the dust collecting section and the air passage is further provided in a communication section between the dust collecting section and the ventilation passage, and this shielding plate has a brush for vertically and retracting the brush. A floor nozzle of a vacuum cleaner linked to an adjustment body and set to open when the brush is in the retracted position.