JPS6155371B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a rotating brush device that is built into an electric floor suction tool (hereinafter referred to as the suction tool) and serves to scoop up dirt on a carpet into the suction tool. This invention relates to the improvement of a flocked body in order to improve the raking performance of hair.

As shown in FIGS. 1 and 2, the conventional rotating brush device has a flocked body 102 which is symmetrically flocked in a spiral shape on the outer periphery of a rotating brush body 101, and a cross section that serves as a beater bar that hits the carpet surface. A triangular protrusion 103 is provided.

The flocked body 102 is inserted into the cutout groove 101a of the rotating brush body 101, and the protrusion 103, which has a substantially triangular cross section and becomes a beater bar, is inserted into the notched groove 101a of the rotating brush body 101.
The protrusion 103 is spot welded to a rivet 104 fixed to the outer circumference of the 01. A rotary brush device is completed by incorporating a pulley 106 holding a bearing 105, a bearing support 107, a shaft 108, and a shaft support 109 into the rotary brush body 101.

When the rotating brush device with the above configuration was incorporated into an electric floor suction tool, the dust collection performance (ratio of the amount of dust collected to the amount of dust applied) on the carpet was measured. For long-haired items, the rate was low at around 50%, and 1/3 to 1/2 of the dust remained on the carpet surface, which was not sufficient.

In this case, the action of the rotating brush device is that the protrusion serving as a beater bar hits the carpet surface to lift the dirt inside to the surface, and the bristles of the flocked body sweep up the dirt into the suction tool. There is a time difference between the impact of the protrusion on the carpet surface and the raising of the hair on the flocked body, and even if the dirt is lifted to the surface, by the time the hair is used to pick up the dirt, it has sunk into the carpet. Therefore, it was not possible to achieve a sufficiently satisfactory effect.

Therefore, the present invention improves the above-mentioned drawbacks of the conventional technology by integrally providing a projection that serves as a beater bar on the flocked body to improve the dust collection performance. This will be explained according to the diagram.

In the figure, 1 is a vacuum cleaner equipped with an electric blower, a dust collection bag, etc., 2 is a hose, and 3 is an extension pipe between the vacuum cleaner 1 and an electric floor suction tool 4 (hereinafter referred to as the suction tool). It is connected.

The suction device 4 is equipped with a commutator motor (not shown), which is a drive source for the rotating brush device 5, a connecting hose 6, and the like.

The rotating brush device 5 receives the rotation of the commutator motor via the belt 7, rotates, and scrapes up the dirt on the carpet into the suction tool 4.
Collect the above dust using a vacuum cleaner.

As shown in FIGS. 5 and 6, the rotating brush device 5 has a notched groove 8a in a spiral shape on the outer periphery of the rotating brush body 8, and a beater bar that hits the carpet surface of the notched groove 8a. A projection 9 having a substantially triangular cross section is integrally formed, and a flocked body 10 having bristles 11 implanted therein is inserted.

In this case, the protrusions 9 and bristles 11 are arranged in this order to contact the floor surface in the direction of rotation of the rotating brush body 8.

Reference numeral 12 denotes a pulley holding a bearing (not shown), which is attached to one end of the rotating brush body 8 and stretches the belt 7 thereon.

Reference numeral 13 denotes a bearing holder that holds a bearing and is attached to the other end of the rotating brush body 8.

Reference numeral 14 designates bearing supports disposed at both ends of the rotating brush body 8.

By doing the above, the bristles 11 can scrape up the dirt inside the suction tool 4 immediately after the protrusion 9 serving as the beater bar hits the carpet surface and vibrates, causing the dirt inside to float to the surface. Furthermore, as shown in FIGS. 5 and 6, the flocked bodies 10 integrally provided with the protrusions 9 are arranged at two symmetrical positions on the circumference, and the rotating brush body 81 rotates. When brushing, two blows and a scraping action are performed, so the dust collection performance on the floor is much improved compared to conventional rotating brush devices.

As described above, according to the present invention, the hair passes through immediately after the protrusion serving as the beater bar hits the carpet surface, making it possible to rationally knock out and scrape up dirt, and to prevent the collection of short bristles on the carpet. Dust performance is 90-95
%, and even long-haired dogs have a hair loss of 75-80%.
Its industrial value is extremely large.

[Brief explanation of the drawing]

FIG. 1 is a cross-sectional view of a conventional rotating brush device, FIG. 2 is a cross-sectional view of the same, and FIG. 3 is an electric floor suction tool and a vacuum cleaner equipped with a built-in rotating brush device according to an embodiment of the present invention. FIG. 4 is a sectional view of the electric floor suction tool, FIG. 5 is an external view of the rotary brush device, and FIG. 6 is a sectional view thereof. 8... Rotating brush body, 9... Protrusion, 10... Flocked body.

Claims (1)

[Claims] 1. A projection serving as a beater bar is integrally formed in the longitudinal direction of the outer circumference of the rotating brush body, and a flocked body with bristles is provided, and the projection and the bristles contact the floor surface in this order in the direction of rotation of the rotating brush body. A rotating brush device characterized by being arranged as desired.