JPH0677561B2 - Electric floor suction tool - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure of an electric floor suction tool connected to an electric vacuum cleaner via a hose and an extension tube.

2. Description of the Related Art A conventional electric floor suction tool (hereinafter referred to as "suction tool") is
The structure shown in Japanese Patent Laid-Open No. 61-10594 is common.

The configuration will be described below with reference to the drawings.

In FIG. 6, the suction tool body 1 has a rotary brush chamber 3 having a rotary brush 2 built in the front portion thereof, and a connection pipe 4 communicating with the motor 4 of the rotary brush drive source and the rotary brush chamber 3 at the rear portion thereof. is doing. Reference numeral 5 is a bearing arranged at both ends of the rotary brush 2, and 6 is a belt installed between the rotary brush 2 and the motor 4. A power cord 7 supplies power to the motor 4 and is connected to a lead wire 8 from the motor 4.

The suction tool body 1 is formed of upper and lower body members.

Problems to be Solved by the Invention However, such a suction tool has a structure in which the bearing 5 and the like are arranged at the end portion of the rotating brush 2 and is covered by the upper and lower body members. Since the rotating brush 2 cannot be arranged, the end surface of the suction tool body 1 cannot be cleaned, and there is a problem that dust remains when cleaning a corner of a room in particular.

The present invention solves the above-mentioned conventional drawbacks by opening the side end portion of the suction tool body that covers the rotating brush, and forming the inner wall surface of the suction tool body in a substantially c-shape so that the inside is wide, Provide an electric floor suction tool that can clean up to the end part and that the dust brushed up with an auxiliary brush is guided to the inner wall surface and moves inward so that the dust cannot be scraped off with the auxiliary brush. It is a thing.

Means for Solving the Problems In order to solve the above-mentioned conventional problems, the present invention provides a suction tool body with a rotary brush for scraping up dust on the floor, and a drive source thereof, and an end portion of the rotary brush. An auxiliary brush chamber provided with an auxiliary brush via a bearing is provided, and a side end portion of the suction tool body that covers the auxiliary brush chamber is opened in a substantially Ω shape and its lower surface is opened so that the end portion of the auxiliary brush is opened. Inhalation from an auxiliary brush suction port provided on the auxiliary brush side, with the auxiliary brush chamber tapered toward the open end of the suction tool body. The air flow is communicated with the suction port for the rotary brush provided at the lower part of the rotary brush.

Effect According to the above invention, the auxiliary brush scrapes up the dust on the floor to the end of the suction tool, and the scraped dust collides with the inner wall surface of the auxiliary brush chamber provided with the auxiliary brush and rebounds to the inside, The dust is efficiently absorbed by the vacuum cleaner without scattering to the outside.

Embodiment An embodiment of the present invention will be described below with reference to FIGS. 1 to 5.

In the figure, 10 is an electric vacuum cleaner, a vacuum cleaner with a built-in dust collecting bag, etc., 11 is a hose, and 12 is an extension tube, which is arranged at the rear of the vacuum cleaner 10 and the suction tool body 13 of the electric floor suction tool. Each is connected to the connecting pipe 14. 15 is a moving wheel, and 16 is a handle.

The suction tool body 13 has a rotary brush chamber 18 having a rotary brush 17 built in the front thereof, a motor chamber 20 having a motor 19 built in one of the rear portions thereof, and a resistor 21 for protecting the motor 19 on the other side thereof. Printed circuit board 24 with built-in electrical components such as characteristic thermistor 22, current fuse 23 for ignition and smoke prevention
Each of the circuit chambers 25 is provided with an intake passage 26 communicating with the rotary brush chamber 18 and the connecting pipe 14 in the center of the rear part. Reference numeral 27 denotes a suction port arranged in the lower part of the rotary brush chamber 18, and the rotary brush 17 is seen on the floor surface.

The suction tool body 13 forms an outer shell by the upper body member 28, the lower body member 29, and the brush cover 30 to form the chambers. A belt 31 is installed between the rotating brush 17 and the motor 19, and transmits the rotation of the motor 19 to the rotating brush 17.

The rotating brush 17 includes a main brush 32, an auxiliary brush 33 and a bearing 34.
The bearing 34 is arranged between the main brush 32 and the auxiliary brush 33 and at the other end of the main brush 32, and is held by the lower body member 29 and the bearing holding portion 35 of the brush cover 30.

The auxiliary brush 33 rotates in conjunction with the main brush 32, and the belt 31 is installed at the end of the main brush 32 on the opposite side of the auxiliary brush 33.

Bristles 36 are planted on the outer circumferences of the auxiliary brush 33 and the main brush 32, a bearing 34 rotatably supports a shaft 37 attached to the main brush 32, and the auxiliary brush 33 is inserted at the end of the shaft 37. I'm wearing it.

In the auxiliary brush 33, the bristles 36 are inclined and planted, and the side end opening chamber 38 in which the side ends of the lower body member 29 and the brush cover 30 are opened in a substantially Ω shape as shown in FIG. The hairs 36 are arranged at the end of the suction tool body 13 so that they can be surely cleaned up to the corners of the room. The rigid portion of the auxiliary brush 33 is not projected from the side surface of the suction tool 13 so that usability and safety are not hindered.
Reference numeral 39 denotes a bypass passage arranged in the upper rear portion of the bearing holding portion 35 so that the rotary brush chamber 18 and the side end open chamber 38 are communicated with each other so that the dust scraped up by the auxiliary brush 33 is guided to the rotary brush chamber 18. Has become.

The end portion of the side end opening chamber 38 is formed in a substantially Ω shape so as to form the shape of the auxiliary brush 33 and the auxiliary suction port 40, and the auxiliary brush chamber including the auxiliary brush 33 is enlarged toward the inside. Is formed in a tapered shape so that the intake airflow from the bypass passage 39 on the auxiliary brush 33 side flows into the intake passage 26 below the rotary brush.

The dust brushed up with the auxiliary brush 33 is
Although it collides with the inner wall surface of the auxiliary brush chamber provided with the above, it is repelled inward due to the inclination of the inner wall surface, and the suction passage of the electric vacuum cleaner 10 causes the bypass passage 39 as shown by the arrows in FIGS.
After that, the dust is guided to the intake passage 26 side and sucked.

Therefore, the auxiliary brush 33 is less likely to splash dust to the outside of the suction tool body 13, and the auxiliary brush 33 is arranged up to the end of the suction tool body 13 as described above, and It is configured so that it can be cleaned up to the edges and can be surely cleaned up to the corners of the room.

Further, as shown in FIG. 1 and FIG. 4, the auxiliary brush chamber provided with the auxiliary brush 33 is formed in a tapered shape so as to become larger toward the inside, so that dust can be easily guided to the inside and the end surface The part can be narrowed to be close to the bristles 36, and
The structure is designed to improve safety by eliminating gaps for fingers and the like.

EFFECTS OF THE INVENTION As described above, the present invention includes an auxiliary tool including a rotary brush for scraping up dust on the floor of the suction tool body and a drive source for the rotary brush, and an auxiliary brush provided at an end of the rotary brush via a bearing. A brush chamber is provided, and a side end of the suction tool body that covers the auxiliary brush chamber is opened in a substantially Ω shape and the lower surface of the suction tool body is opened so that the end portion of the auxiliary brush is the open side end portion of the suction tool body. In addition, the auxiliary brush chamber is formed in a taper shape so as to become larger toward the inner side, and is communicated so that the intake airflow from the intake port on the auxiliary brush side flows to the intake port under the rotary brush. Therefore, the auxiliary brush can be used to clean the end of the suction tool so that the corners of the room can be reliably cleaned, and an excellent electric floor suction tool is provided.

[Brief description of drawings]

FIG. 1 is a bottom view of an electric floor suction tool according to an embodiment of the present invention with a lower main body member removed, and FIG. 2 shows a state in which the electric floor suction tool is connected to an electric vacuum cleaner. FIG. 3 is an external perspective view, FIG. 3 is a cross-sectional view of an electric floor suction tool, FIG. 4 is a cross-sectional view of relevant parts, FIG. 5 is a side view of the same, and FIG. 6 is a conventional electric floor suction tool. It is a bottom view in the state where the lower body member was removed. 13 …… Suction tool body, 17 …… Rotating brush, 33 …… Auxiliary brush, 34 …… Bearing.

Claims (1)

[Claims] 1. A suction brush main body is provided with a rotary brush for scraping up dust on the floor surface and a drive source thereof, and an auxiliary brush chamber provided with an auxiliary brush via a bearing is provided at an end of the rotary brush. While opening the side end of the suction tool body covering the auxiliary brush chamber in a substantially Ω shape and opening the lower surface thereof, the end portion of the auxiliary brush is looked into the open side end portion of the suction tool body, and The auxiliary brush chamber is formed in a taper shape so as to become larger toward the inner side, and the suction airflow from the auxiliary brush suction port provided on the auxiliary brush side flows to the rotary brush suction port provided at the lower part of the rotary brush. An electric floor suction tool that is made to communicate with each other.