JPH01314526A - Floor nozzle for vacuum cleaner - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

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

Conventional technology This type of floor nozzle agitator has brush bristles planted on the circumferential surface of a rotor, and the brush bristles scrape up dust on the surface to be cleaned, for example, a carpet. It was introduced into the floor nozzle by suction force. In addition, in order to improve the cleaning efficiency of the corners of the room, there is a sub-agitator called an edge brush at the end of the agitator, and the agitator in this agitator is also composed of brush bristles.

Problems to be Solved by the Invention However, since the above-mentioned agitator uses brush bristles as the agitating body, string-like dust such as lint becomes entangled, and eventually the agitator becomes wrapped around the entire body and does not lose its intended function. , and its removal required a great deal of effort.

The present invention solves these conventional problems, and prevents entanglement of string-like dust as much as possible to maintain good agitator function, and improves the cleaning efficiency of the corners of the part by the sub-agitator. In addition, it is easy to manufacture.

Means for Solving the Problems A first means of the present invention for achieving the above object is to mount a main agitator and a sub-agitator located at the end of the main agitator together with their driving sources in a nozzle main body, and the main agitator , a stirring band made of a flexible material is provided in the longitudinal direction of the circumferential surface of a columnar rotor, and a large number of protrusions are formed on at least one surface of this stirring band, and the sub-agitator is formed on the surface of a substantially circular rotary table. A plurality of visible stirring protrusions are formed in the direction of the rotary table, and the second means is such that the stirring protrusions are arranged in the sub-agitator so as to be displaced in the direction of the rotation table and in the thrust direction. This is what I did. Furthermore, as a third means, a sub-agitator is constructed by integrally molding a stirring protrusion and a cap-shaped rotary table from a flexible material, and wrapping the rotary table around a base made of a rigid material.

Operation In the first means of the present invention, the stirring zone in the main agitator has a large number of protrusions formed on at least one surface thereof (on the rotational direction side), and is made of a combustible material.
When it comes into contact with the surface to be cleaned, it blends well with the surface and acts to squeeze the surface. As a result, dust is liberated from the surface to be cleaned, and this liberated dust is effectively sucked into the nozzle by the restoring force of the agitation band and the suction force of the vacuum cleaner. Further, even in the sub-agitator, its stirring protrusion performs stirring, especially in the corners of the room.

In both the main and sub-agitators, flexible strips and protrusions are used as agitation means, and brush bristles are not used, so there is almost no entanglement of string-like dust.

In the second means, since the stirring protrusion in the sub-agitator is displaced in the thrust direction, the dust scraping width becomes wider accordingly. Moreover, in the third means, the main part of the sub-agitator can be easily integrally molded using a rubber material or the like, and the manufacturing cost can be reduced.

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

In the figure, a nozzle body 1 is obtained by joining upper and lower body members 3.4 via a bumper 2, and a suction chamber 6 with a lower opening as a suction port 6 is formed in the front interior thereof. It is.

The center of the suction port 6 extends to the rear of the nozzle body 1 and is connected to a suction passage 7 whose upper and lower walls are arcuate. Further, inside the nozzle body 1 located behind the suction port 6, there are chambers 8 and 9 partitioned left and right by the suction passage 7, and the negative chamber 8 has a small motor for driving an agitator. 10, and the other room 9 has a control section 11 therein. Reference numeral 12.13 denotes a vent hole for flowing cooling air into each room 8.9, and is covered with filter materials 14 and 15 to prevent dust from entering.

Reference numeral 16 denotes a substantially semi-cylindrical suction joint which is connected to the suction passage 7 so as to be able to rise and fall freely, and a connecting pipe 19 is rotatably connected via a ring 18 to a cylindrical connecting port 17 that protrudes from a part of the peripheral wall of the suction joint. An extension pipe connected to the suction side of the vacuum cleaner via a hose is detachably connected to the connection pipe 19 of the bracket. 2o indicates the power cord of the motor 1o.

21 is a main agitator provided in parallel to the suction chamber 6, and 22 is a bearing of the main agitator 21 provided on both side walls of the suction chamber 6. Shaft 23 of the main agitator 21
protrudes further to the side than the bearing 22, and the auxiliary agitator 24 is attached thereto. This sub-agitator 24 is arranged to face an opening 26 formed in the side wall of the nozzle body 1.

A belt 28 is stretched between a pulley 26 provided on one side of the main agitator 21 and a pulley 27 provided on the shaft of the motor 1o. Namely, the above.

The secondary agitators 21, 24 are forced to be driven by the motor 1o.

29 is a fixed plan attached parallel to the rear of the suction port 6;
0.31 is a wheel provided at the front and rear of the nozzle body 1 in order to position the suction port 6 at a constant distance from the surface to be cleaned.

By the way, the main agitator 21 has a substantially cylindrical rotor 3
A continuous stirring band 33 is installed in the longitudinal spiral direction on the outer circumferential surface of No. 2. This stirring band 33 is made of a flexible material such as rubber, and has a large number of protrusions 34 formed on at least one surface thereof (the side surface in the direction of rotation).

On the other hand, the sub-agitator 24 includes a base 36 made of a rigid material such as synthetic resin, a cap-shaped rotating table 36 wrapped around the outer periphery of the base 36, and a plurality of stirring protrusions radially protruding from the outer periphery of the rotating table 36. Consists of 37 children. And the above rotating table 3
6 and the stirring protrusion 37 are integrally molded from a flexible material such as rubber. The base 35 is the main agitator 21
The rotating table 36 is connected to the shaft 23 to transmit rotation and to maintain the shape of the flexible rotating table 36. Reference numeral 38 denotes a tight material such as felt that contacts the outer wall surface of the suction chamber 6 and tightens dust at the portion through which the shaft 23 passes.

Next, the function and operation will be explained.

Now, when the main agitator 21 is rotating clockwise as shown in FIG. 3, the agitation band 33 is displaced in the counter-rotation direction when it comes into contact with the surface to be cleaned, so that it follows the surface to be cleaned. Thereafter, the agitation band 33 moves relative to the surface to be cleaned, so that the dust is squeezed by its numerous protrusions 34 and released from the surface to be cleaned.

The free dust is effectively drawn into the nozzle body 1 by the repelling action of the agitation band 33 when it returns to its original shape (due to its elasticity and centrifugal force) and by the suction force of the vacuum cleaner.

Here, when the agitation band 33 is in contact with the surface to be cleaned, it blocks the flow of air from the front, helping the vacuum cleaner's suction force to concentrate and effectively work on the surface to be cleaned. do.

Furthermore, since the agitation band 33 is in the form of a continuous band, it is possible to prevent string-like dust such as lint from becoming entangled.

On the other hand, in the sub-agitator 24, its stirring protrusion 37 stirs the surface to be cleaned, such as a carpet, and stirs up dust. This stirred up dust passes through a passage (not shown) to the suction chamber 6.
leading to. Since the auxiliary agitator 24 is located on the side of the nozzle body 1, it works effectively for cleaning corners of a room where the main agitator 21 is difficult to operate.

Further, since the stirring protrusion 37 is a single independent member unlike the conventional one in which brush bristles are grouped together, there is almost no entanglement of string-like dust.

Furthermore, if the stirring protrusions 37 are arranged in the circumferential direction of the rotary table 36 and in a spiral or other thrust direction as shown in FIG. can be done more reliably.

In the above embodiment, a motor is used as the agitator drive source, but of course, other drive means such as an air turbine may be used instead of the motor.

Effects of the Invention As described above, the present invention has a main agitator and a sub-agitator as an agitator, and the main agitator is composed of a rotor and a flexible stirring band provided in the longitudinal direction of its circumferential surface. By forming a large number of protrusions on at least one surface of the agitation zone, dust can be accurately released from the surface to be cleaned, and dust absorption into the nozzle body is also significantly improved. Furthermore, unlike conventional brush bristles, string-like dust such as lint does not get tangled.

Furthermore, since the stirring protrusions of the sub-agitator are independent, there is almost no entanglement of string-like dust.

Therefore, the function as an agitator can be maintained well at all times, and every corner of the room can be reliably cleaned.

Furthermore, by displacing and arranging the stirring protrusions of the auxiliary agitator in the thrust direction, the corner cleaning area is expanded and the interval cleaning performance is further improved. Furthermore, by adding a base that exhibits a shape-retaining effect to the sub-agitator, the main portion thereof can be integrally molded from a flexible material, thereby promoting reduction in manufacturing costs.

[Brief explanation of the drawing]

Fig. 1 is a top view of the floor nozzle according to the embodiment of the present invention with the upper body member removed, Fig. 2 is a sectional view, Fig. 3 is a sectional view of the main agitator, and Fig. 4 is a front view of the sub-agitator. figure,
FIG. 6 is a half-cut sectional view of the same. 1... Nozzle body, 10... Drive source,
21... Main agitator, 24... Sub-agitator, 32-0... Rotor, 33... Stirring band, 34... Protrusion, 36... Base, 36... Rotating table,
37... Stirring protrusion. Name of agent: Patent attorney Toshio Nakao and 1 other person2/
-Issei Bushiteig 32-・Time sashiko 33-Agitated and criticized Fig. 3 34-Protrusion 24-Massage ajitegu A-・Basic container 36-E useless 37-Shichibokei Raiko Fig. 4

Claims (3)

[Claims] (1) A main agitator and a sub-agitator located at the end of the main agitator are attached to the nozzle body along with their driving sources, and the main agitator is provided with a stirring band made of a flexible material in the longitudinal direction of the circumferential surface of the columnar rotor. The sub-agitator is a floor for a vacuum cleaner, in which a large number of protrusions are formed on at least one surface of the stirring zone, and the sub-agitator has a plurality of flexible stirring protrusions formed in the circumferential direction of the circumferential surface of a substantially circular rotary table. nozzle. (2) The floor nozzle for a vacuum cleaner according to claim 1, wherein the stirring protrusions of the auxiliary agitator are arranged so as to be displaced in the circumferential direction of the rotating table and in the thrust direction. (3) The electric cleaner according to claim 1 or 2, wherein the stirring protrusion and the cap-shaped rotary table are integrally molded from a flexible material, and the rotary table is wrapped around a base made of a rigid material to constitute the sub-agitator. Machine floor nozzle.