JPH0815474B2 - Floor suction - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a floor suction tool for an electric vacuum cleaner.

[0002]

2. Description of the Related Art Conventionally, there is a floor suction tool in which brush-shaped brush bristles are planted in a spiral shape on a rotating brush body. However, since the brush bristles for scraping out dust on the floor are brush-shaped, There was a drawback that dust and hair were easily entangled. To prevent this, for example, JP-A-62-161334 (A4
7L 9/04), Japanese Patent Laid-Open No. 1-259824 (A47L 9/04), etc., a thin plate-shaped sliding contact piece formed of an elastic material such as synthetic rubber or soft vinyl chloride is attached to the rotating body. A floor suction device arranged in a spiral has been proposed. On the other hand, since the rotating brush body rotates at a high speed, if the weight balance is lost, a large vibration may be generated.
It is made of a relatively light material such as foamed resin to suppress vibration during rotation, but on the other hand, the rotating brush made of foamed resin has low hardness, so both ends of the rotating brush are There is a problem that the mechanical strength of the rotating shaft arranged in the section is lowered. In order to solve this drawback, JP-A 1-2598
As shown in FIG. 2 of Japanese Unexamined Patent Publication No. 24, a rotary shaft made of hard resin is attached to both ends of a rotary brush made of foamed resin, and a rotary shaft is arranged on the rotary shaft. However, the above configuration has a drawback that thread waste or hair is caught between the rotating brush body and the shaft-attaching member.

[0003]

SUMMARY OF THE INVENTION In view of the above-mentioned drawbacks, an object of the present invention is to provide a floor suction device in which lint and hair are not easily entangled.

[0004]

The floor suction device of the present invention comprises:
A cleaning tool is provided in which a cleaning rotator is disposed in the body case so that a part of the cleaning rotator is exposed from a suction port provided on a bottom surface of the body case, and the cleaning rotator is rotated by a rotational force from a rotary drive source. The rotating body includes a rotating shaft body, a shaft-shaped member coaxially provided at an end of the rotating shaft body, and a sliding contact piece provided on an outer peripheral surface of the rotating shaft body and the shaft-shaped member. Is characterized in that

[0005]

According to the present invention, the thread scraps and hair scraped up from the floor surface by the sliding contact piece are partially caught on the joint between the rotary shaft body and the shaft-like member by the rotation of the cleaning rotary body. However, the sliding contact piece interferes with the sliding contact piece so that it cannot be inserted into the joint, and when the bent sliding contact piece extends, the thread scraps are ejected.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings. 1 to 3 show an example of a conventional technique used for explaining the present invention, in which 1 is a horizontally long casing of a floor suction tool 4 formed by connecting an upper case 2 and a lower case 3. A case body having a body shape, which has a suction chamber 6 having a laterally long suction port 5 on the bottom surface at the front portion of the case body 1, and a connecting cylinder pivoting chamber 7 communicating with the suction chamber 6 at the rear portion. are doing. Further, reference numeral 8 is a connecting cylinder connected to a suction hose (not shown) of the electric vacuum cleaner, and is a semi-cylindrical pivoting member having a front opening, which is pivotally supported in the connecting cylinder pivoting chamber 7 in a vertically rotatable manner. It comprises a body 9 and a vent pipe 10 pivotally attached to the pivot body 9 in the left-right direction.

11 is a part of the suction port 5 so as to be exposed.
A cleaning rotator axially rotatably controlled in the suction chamber 6 of the main body case 1, and the cleaning rotator 11 applies the rotational force of a motor 12 as a rotary drive source housed in the main body case 1 to a belt 13
It is transmitted through and rotates at high speed. 14 is the front wheel, 15
Is the rear wheel.

In the cleaning rotor 11, reference numeral 16 is a long-shaft synthetic resin rotary shaft having metal shafts 17, 17 at both ends. Between the both ends of the rotary shaft body 16, in the longitudinal direction, two fitting long grooves 19, which are spirally formed,
19 is provided symmetrically with respect to the axis of rotation.

Reference numeral 20 denotes a sliding contact piece which is mounted in the fitting long groove 19 and is spirally provided on the outer peripheral surface 18 of the rotary shaft body 16 along the longitudinal direction of the rotary shaft 16, and is made of synthetic rubber or soft chloride. It is formed by molding an elastic material such as vinyl resin, and is composed of a mounting base portion 21 that fits into the fitting long groove 19 and a substantially cylindrical sliding contact portion 22 that is a contact portion with the cleaning floor surface, A hollow portion 23 is formed in the center of the sliding contact portion 22 along the axial direction.

Reference numeral 24 denotes a bearing holding cylinder that is axially attached to one end of the rotary shaft body 16. The bearing holding cylinder 24 has an annular cover wall 25 that covers the end of the sliding contact piece 20 and an outer peripheral surface 26. It is provided with a plurality of linear finger-hanging protrusions 27 ... which are projected parallel to the direction, and the finger-holding protrusions 27 .. The suction tool 4 is exposed to the outside. When the fingers are inserted from the suction port 5 and the finger-holding protrusions 27 ... Are rotated, the cleaning rotary member 11 is rotated.

Reference numeral 28 denotes a rotary pulley which is axially attached to the other end of the rotary shaft body 16, and which is wound around the belt 13 to transmit the rotational force of the motor 12 to rotate the cleaning rotary body 16 at high speed. To do.

With the above structure, when the cleaning rotor 11 is rotated at a high speed while the floor suction tool 4 is running, the sliding contact piece 20
It gives a beater effect as a beater to the cleaning floor surface such as a carpet, but the contact portion with the cleaning floor surface is a substantially cylindrical sliding contact portion 22.
Therefore, the force to hit the cleaning floor surface is strong and the contacting part to the cleaning floor surface always comes into contact reliably, and therefore, regardless of the state of the cleaning floor surface, knocks out dust such as fine dust, lint, and hair. , Get high dust hoisting effect. Furthermore, since the sliding contact pieces 20 as a whole wind up dust on the floor surface, the dust is not entangled with the sliding contact pieces 20 and is sucked into the electric vacuum cleaner from the connecting pipe 8.

At this time, since the sliding contact portion 22 has the hollow portion 23, the abutting portion on the cleaning floor surface is easily bent, and the abutting portion on the cleaning floor surface is more surely contacted, and a high dust winding effect is obtained. It can be obtained and does not damage the cleaning floor.

However, especially in a dry season such as winter, static electricity is generated between the sliding contact piece 20, the rotary shaft 11 and the carpet surface which is the cleaning floor surface, and the static electricity causes dust to be cleaned. Attach to the rotating body 11.

Therefore, after the cleaning is completed, the floor suction tool 4 is removed from the suction hose, the floor suction tool 4 is reversed, and the fingers 29 are inserted from the suction port 5 to make the finger-holding projection of the bearing holding cylinder 24. Department
27 ... ・ Easy operation by simply rotating fingers 29
Cleaning the surface of the rotary shaft 16 and the sliding contact piece 20 facing the suction port 5 while rotating 11 and cleaning by static electricity to remove dust adhering to the rotary body 11 without cleaning the floor suction tool 4 The rotating body 11 can be cleaned. This cleaning rotor 11 is cleaned by another suction nozzle connected to the suction hose of the vacuum cleaner.
It suffices to insert 30 through the suction port 5 and suck the dust on the surface of the cleaning rotator 11 while rotating the cleaning rotator 11 with the fingers 29.

In the cleaning rotary member 11 of FIG. 4, a shaft member 38 is formed at one end of the rotary shaft member 16 so as to be continuous from the rotary shaft member 16, and the sliding contact piece 20 is the shaft member. It is attached by extending to the shaft end portion 37 of 38, and this extended portion becomes the finger-holding convex portion 39. Moreover, with this structure, even if the thread scrap 41 is caught in the joint portion 40 between the rotary shaft body 16 and the shaft-like member 38 during cleaning, the thread scrap 41 is repelled by the sliding contact piece 20 and the thread scrap 41 is not wound. That is, as shown in FIGS.
Even if the thread scraps 41 get caught in the 40 (see FIG. 5), the sliding contact piece 20 is deflected by the contact with the cleaning floor surface 42 as the cleaning rotor 11 rotates (see FIG. 6). Play thread scrap 41 when leaving the cleaning floor 42
41 is disengaged (see FIG. 7), and the thread waste 41 is sucked by the vacuum cleaner.

[0017]

EFFECTS OF THE INVENTION Since the present invention is constructed as described above, it is extremely easy to use with a simple structure in which yarn waste, hair, etc. are not caught at the joint between the rotary shaft and the shaft-shaped member. A floor suction device is obtained.

[Brief description of drawings]

FIG. 1 is a cleaning rotary member according to the related art of the present invention.

FIG. 2 is a sectional view of the entire suction tool for the same floor.

FIG. 3 is a perspective view of the same floor suction tool as seen from the bottom surface.

FIG. 4 is a perspective view of a cleaning rotary member that is an embodiment of the present invention.

FIG. 5 is a sectional view showing an operating state of the embodiment.

FIG. 6 is a sectional view showing an operating state of the embodiment.

FIG. 7 is a sectional view showing an operating state of the embodiment.

[Explanation of symbols]

 1 Body Case 5 Suction Port 11 Cleaning Rotating Body 16 Rotating Shaft Body 20 Sliding Contact Piece 38 Shaft Member

Claims (1)

[Claims] 1. A cleaning rotator is provided in the main body case so that a part of the main body case is exposed from a suction port provided on the bottom surface of the main body case.
In a suction tool that rotates the cleaning rotator by a rotational force from a rotary drive source, the cleaning rotator includes a rotating shaft body,
A floor characterized by comprising a shaft-shaped member coaxially provided at an end of the rotary shaft body, and a sliding contact piece provided on an outer peripheral surface across the rotary shaft body and the shaft-shaped member. Suction tool.