JPH01160518A - Floor nozzle for electric cleaner - Google Patents

Abstract

PURPOSE: To keep function of an agitator constantly at good condition by making the agitator be composed of parts divided directionally to the shaft of rotator and fixing between the divided rotators a convex belt which is furnished with scrapers of flexible material on its surface. CONSTITUTION: The agitator 16 is fixed by setting bosses 34c, 34d after inserting longitudinally a convex belt between the two rotator parts 34a, 34b divided directionally to the shaft. The convex belt is made of flexible material, and on at least one surface of it are formed many projections which work as scraper. Once the agitator 16 rotates clockwise, the convex belt 35 rotates counterclockwise in contact with the face to be cleaned, and moves relatively as if stroking the face. Dust is scraped by the projection 36, separated from the face, and effectively introduced to main body of floor nozzle 7. Since the convex belt is belt-shaped, clinging of string dust such as thread is avoided. Furthermore, as the rotator is divided into two parts 34a, 34b, the convex belt is easily assembled and procured at a low price.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a floor nozzle for a vacuum cleaner with an agitator.

2. Description of the Related Art Conventionally, the agitator of this kind of floor nozzle has brush bristles planted on the circumferential surface of a rotor, and the brush bristles scrape up dust on the surface to be cleaned, such as a carpet, and are used in vacuum cleaners. The suction force was used to introduce it into the floor nozzle.

Problems to be Solved by the Invention However, in the above-mentioned floor nozzle agitator, string-like objects such as lint get entangled with the brush bristles, and eventually wrap around the entire agitator, preventing it from losing its intended function. It took a lot of effort.

The present invention solves these conventional problems and allows the agitator to always function well.

Means for Solving the Problems In order to solve these conventional problems, the present invention consists of a rotor divided in the direction of its rotational axis, and protrusions made of a flexible material are installed between the divided rotors. This constitutes an agitator that is fixed by sandwiching the band between them, and is provided within the floor nozzle body together with the drive source.

Function In the configuration of the present invention described above, the protruding strip in the agitator has a scraping portion formed by a large number of protrusions on its surface and is a flexible material, so that when it comes into contact with the object to be cleaned, it comes into contact with the same surface and prevents the object from being cleaned. Dust is released from the cleaning surface, and this loose dust is effectively sucked into the floor nozzle body by the restoring force of the protruding strip and the suction force of the vacuum cleaner. It is constructed by sandwiching and fixing the rotor between two separate rotors.

Example Examples thereof will be described below with reference to the accompanying drawings.

In FIGS. 1 to 4, the floor nozzle body 7 is a bumper 8.
It is advantageous that the upper and lower body members 9 and 10 are connected via a suction chamber 12 with a lower opening as a suction port 11 in its front interior, and a turbine chamber 13 in its rear interior. It is. The turbine chamber 13 is separated from the suction chamber 12 by a partition wall 14, and the rear portion having an opening 16 is set in an arc shape. 16 is an agitator installed in parallel with the suction chamber 12;
Bearings of the agitator 16, 18 provided on both side chamber walls of the
19 is a fixed brush installed parallel to the rear of the suction port 11;
, 20 are wheels provided before and after the floor nozzle water body 1 in order to position the suction ports 11 at a constant interval from the surface to be cleaned.

Reference numeral 21 denotes a substantially semi-cylindrical suction joint that rotatably slides on the rear inner surface of the turbine chamber 13, and a floor nozzle pipe is connected to a cylindrical connection port 22 protruding from a part of the peripheral wall via a ring 23. 24 is rotatably attached to the floor nozzle pipe 24, and an extension pipe connected to the suction side of the vacuum cleaner via a hose is detachably connected to the floor nozzle pipe 24.

Reference numeral 26 denotes a turbine that is disposed in the turbine chamber 13 and whose outer periphery is partially surrounded by the suction joint 21, and a shaft body 2 that passes through the rotating shaft on one side of the suction joint 21 and projects to the outside of the turbine chamber.
6 are integrally provided.

A power transmission belt 27 transmits the rotation of the turbine 25 to the agitator 16 via a pulley 28.

Further, the turbine 26 is arranged so as to be biased towards the side of the turbine chamber 13 where the belt 27 is arranged. Reference numerals 29 and 30 indicate two vent holes formed in the partition wall 14, one vent 29 facing the lower half of the turbine 25, and the other vent 3o facing the turbine 25.
6, and directly faces the connection port 22 of the suction joint 21.

31 is a switching lever, and a shielding plate 32 protrudes from a part thereof.
An opening 33 is formed in the opening 33 which communicates with either one of the vent holes 29 and 30 described above.

In the above configuration, when the switching lever 31 is now slid to the right in FIG. The suction air collides with the turbine 26, and then flows through the connection port 22 of the suction joint 21, the floor nozzle pipe 24, the extension pipe, and the hose to reach the vacuum cleaner. Therefore, the turbine 26 rotates, and its rotational force is transferred to the agitator 16.
transmitted to.

Incidentally, the agitator 16 is constructed by sandwiching a protrusion band 36 in the longitudinal direction between the rotors 34a and 34b which are divided into two parts in the direction of the rotation axis, and then fixing the rotors 34a and 34b by a fitting boss part 34C934d. This protrusion band 36 is made of a flexible material such as rubber, and has a large number of protrusions 36 formed as scraped portions on at least one surface (the side surface in the direction of rotation).

Now, when the agitator 16 is rotating clockwise as shown in FIG. 5, the protruding strip 35 is displaced in the counter-rotation direction when it comes into contact with the surface to be cleaned, and takes a shape along the surface to be cleaned. Thereafter, the protrusion band 35 moves relatively to stroke the surface to be cleaned, and at this time, the dust is squeezed by its numerous protrusions 36 and released from the surface to be cleaned.

The loose dust is effectively guided into the floor nosing body 7 by the repelling action of the protrusion band 35 when it restores its shape in the diametrical direction (due to elasticity and centrifugal force) and by the suction force of the vacuum cleaner. .

Here, when the protrusion band 36 is in contact with the surface to be cleaned, it blocks the flow of air from the front, and prevents the suction force of the vacuum cleaner from acting concentratedly and effectively on the surface to be cleaned. encourage

Moreover, since the protrusion band 36 is in the form of a band, it is possible to prevent string-like dust such as lint from becoming entangled.

Moreover, since the rotors 34a and s4b are constructed by being divided into two halves, assembly of the protruding strips is easy, processing by injection molding is possible, and there is no unnecessary filler inside, making it lightweight and mass-producible. Since the configuration is compatible, it is possible to provide a product that is inexpensive and easy to use.

In the above embodiment, a turbine was used as the drive source for the agitator, but of course a motor may be used instead of the turbine, and methods such as ultrasonic welding may also be considered as a method for fixing the rotor. .

Effects of the Invention As described above, the present invention is constructed by dividing the agitator installed in the floor nozzle body in the direction of the rotation axis of the rotor, and scraping the surface made of a flexible material between the divided rotors. Since the device has a means for sandwiching and fixing the protruding strip having a section, dust can be accurately released from the surface to be cleaned, and dust absorption into the floor nozzle body is also significantly improved. Furthermore, unlike conventional brush bristles, there is no tangle of string-like dust such as lint, and this allows the agitator to function well at all times, and maintenance is easy. The belt can be easily assembled, and the structure of these rotors can be provided in a lightweight structure that can be mass-produced, making it possible to create an inexpensive and easy-to-use floor nozzle.

[Brief explanation of the drawing]

Fig. 1 is a sectional view of essential parts of an agitator showing an embodiment of the present invention, Fig. 2 is a top view of the floor nozzle with the upper main body member removed, Fig. 3 is a sectional view, and Fig. 4 is a sectional view of the agitator. - is a side view of the main part, and FIG. 6 is an explanatory view of the operation. 7... Floor nozzle body, 16... Agitator-135... Projection band, 36... Scraping part (protrusion). Name of agent: Patent attorney Toshio Nakao and 1 other person34
a, 34b-D trochanter 35- ridge band 36-- hooked part protrusion Fig. 1 3Δ l

Claims (1)

[Claims] An agitator and its driving source are installed inside the floor nozzle main body, and the agitator is divided in the direction of the rotation axis of the rotor, and between the divided rotors is made of a flexible material and the surface A floor nozzle for a vacuum cleaner that is fixed by sandwiching a protruding strip with a scraping part.