JPS6110592Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a vacuum cleaner having a rotatable brush body.

Conventionally, in this type of vacuum cleaner, a bearing part, a pulley, etc. are provided at the end of the brush body, so it is not possible to brush the floor surface to the full width of the case that holds the brush body. The suction force weakens toward the ends of the case, and therefore the cleaning effect is extremely poor at the ends of the case, especially on floors near walls, where it is difficult to brush with the bristles on the brush body. I can't do it,
This method has the disadvantage that dust cannot be sufficiently sucked up in places where only the edge of the case, which has a weak suction force, can pass through.

This idea was made in consideration of this point, and only the edges of the case can be passed through.
The purpose of the present invention is to provide a vacuum cleaner that can exert a cleaning effect even on the floor surface, etc. near the wall by sucking in dust on the floor surface near the wall, etc., where it is impossible to perform brushing by flocking, using the suction airflow generated by the air guide. It is something.

This idea is to form a horizontally elongated suction opening in the direction perpendicular to the traveling direction in the bottom opening of the case that runs on the floor, which communicates with the negative pressure generating part through the dust collection chamber, and this suction opening has a longitudinal direction. A brush body equipped with a cylindrical brush stand along the axis is connected to a drive unit and is rotatably mounted, and flocked hair is planted on the outer periphery of the brush body except for the end of the brush stand, and at the end of the brush stand. The present invention is characterized in that an air guide body is integrally formed, and as the brush body rotates, the air guide body generates a suction airflow toward the center of the suction opening. Therefore, the wind guide body rotates together with the brush body rotated by the driving force of the drive unit,
The rotation of this air guiding body can generate an inward suction airflow at the end of the suction opening, and this suction airflow can suck in dirt located at the end of the suction opening and on the sides of the case, increasing the cleaning effect. It is configured as follows.

An embodiment of this invention will be described based on the drawings. Reference numeral 1 denotes a vacuum cleaner main body which is a case, and this vacuum cleaner main body 1 is provided with a running wheel 2 and a handle 3. In addition, a horizontally elongated suction opening 4 is formed in the front lower surface of the vacuum cleaner body 1 in a direction perpendicular to the direction of movement, and this suction opening 4 is provided with a dust collection chamber 6 that accommodates a filter unit 5 and a negative pressure generator. An electric chamber 8 that houses an electric blower 7, which is a part of the electric blower, and an exhaust port 8a are provided in communication with each other. In the suction opening 4, a brush body 13 is provided with a rotary shaft 9 held by a bearing 10 and a cylindrical brush stand 11 with bristles 12 implanted therein.
A belt 16 is stretched between a pulley 14 fixed to the rotating shaft and a motor 15 of the electric blower 7, which is a driving section, and the brush body 13 is driven by the driving force of the motor 15. be rotated. Furthermore, the brush body 13 is connected to the brush stand 1.
As shown in FIG. 2, a plurality of air guiding bodies 17 are installed at both ends of the brush body 13 at a certain angle B with respect to the rotational direction A of the brush body 13.

In such a configuration, the brush body 13 is rotated by the driving force of the motor 15, and at the same time, dust is sucked by the electric blower 7. In the area where the brushing by the flocked hair 12 is performed, a sufficient cleaning effect can be achieved due to the brushing action and dust suction action. Further, the air guide body 17 also rotates together with the brush body 13, and the rotation of the air guide body 17 causes a suction airflow from the end of the suction opening 4 toward the center, and the end of the vacuum cleaner body 1 passes through this suction airflow. Dust on the floor can be sucked into the center of the suction opening 4 and collected into the dust collection chamber 6 by the dust suction action of the electric blower 7. In this way, the brushing action of the flocked hair 12 and the dust suction action of the electric blower 7 alone cannot sufficiently suck dust from the floor surface through which the end of the vacuum cleaner body 1 passes and the floor surface on the side of the vacuum cleaner body 1. Remove the garbage from the wind guide 17
Since the suction airflow generated by the suction air can be sucked toward the center of the suction opening 4, it is possible to clean more than the width of the vacuum cleaner body 1, and in particular, even in places where the brushing effect of the flocked hair 12 cannot be exerted, such as near a wall. Can be cleaned thoroughly.

In this embodiment, the case is the main body of the vacuum cleaner, but it is also possible to use the case as a suction port and provide a separate dust collection section.

In addition, various shapes and materials are used for the air guide, including synthetic resin ones that are shorter than the protruding length of the flocked hair to prevent contact with the floor, and There are some that obtain a blowing effect and a brushing effect by providing the air guide body in a straight line, and if the air guiding body is curved concavely with respect to the direction of rotation, an even more effective blowing effect can be obtained.

Since this device is configured as described above, a suction airflow can be generated from the case end to the inside of the suction opening by the air guiding body of the brush body that is driven and rotated by the drive unit, and this suction airflow This has the advantage of being able to suck in dirt from the sides of the case, making it possible to clean more than the width of the case.

[Brief explanation of the drawing]

The drawing shows one embodiment of this invention.
The figure is a vertical side view, FIG. 2 is a partially sectional plan view, and FIG. 3 is a vertical front view. 1... Vacuum cleaner body (case), 4... Suction opening, 7... Electric blower (negative pressure generating part), 11...
Brush stand, 12... Flocking, 13... Brush body, 1
5...Motor (drive unit), 17...Air guiding body.

Claims (1)

[Scope of utility model registration request] A horizontally elongated suction opening is formed in the direction perpendicular to the direction of travel at the bottom opening of the case that runs on the floor, which communicates with the negative pressure generation part through the dust collection chamber, and a cylindrical shape along the longitudinal direction is formed in this suction opening. A brush body with a brush stand is connected to the drive unit and rotatably installed.
Flocked hair is planted on the outer periphery of the brush body except for the end of the brush stand, and an air guide body is integrally formed at the end of the brush stand, and as the brush body rotates, the air guide body moves the center of the suction opening. A vacuum cleaner characterized by generating a suction airflow directed toward.