JPH072160B2 - Floor suction - Google Patents

Description

TECHNICAL FIELD The present invention relates to a floor suction tool used for an electric vacuum cleaner.

(B) Conventional technology In a conventional floor suction tool, brush-shaped brush bristles are planted in a spiral shape on a rotary brush body. There is a drawback that dust is easily entangled. In order to prevent this, for example, Japanese Patent Laid-Open No. 62-
As shown in Japanese Patent No. 161334, a floor suction using a cleaning rotary body formed by spirally winding a thin plate-shaped sliding contact piece formed of an elastic material such as synthetic rubber or soft vinyl chloride around the rotary body. Although there is a tool, if it is used in dry season such as winter, static electricity is generated between the thin plate sliding contact piece and the rotating body and the carpet which is the cleaning floor surface, and this static electricity causes dust to adhere to the rotating body. There is a drawback that

(C) Problem to be Solved by the Invention An object of the present invention is to obtain a floor suction tool which can easily remove dust attached to a cleaning rotary member by a simple operation.

(D) Means for Solving the Problems The floor suction tool of the present invention includes a cleaning rotator partially facing the suction port in a main body case having a suction port formed on the bottom surface, and the cleaning rotator. A rotary drive source for rotating, and a floor suction tool in which a sliding contact piece that slidably contacts a surface to be cleaned is spirally mounted on the outer periphery of the cleaning rotary body, at an axial end portion of the cleaning rotary body, It is characterized in that the columnar body is fixed so as to face the suction port, and a plurality of convex portions extending in the substantially axial direction of the cleaning rotary body are formed on the outer periphery of the columnar body.

(E) Operation With the above configuration, the sliding contact piece scrapes up dust on the cleaning floor surface by the rotation of the cleaning rotary member during cleaning. At the end of cleaning, the cleaning rotor is rotated to remove dust adhering to the surface by a simple operation of turning the convex portion of the columnar body of the cleaning rotor facing the suction port of the floor suction tool with a fingertip.

(F) Example Hereinafter, an example of the floor suction tool of the present invention will be described with reference to the drawings.

(1) is a case body in the shape of a horizontally long casing of a floor suction tool (4) formed by connecting an upper case (2) and a lower case (3), and is provided on the front part of the case body (1). Has a suction chamber (6) provided with a horizontally long suction port (5) on the bottom surface, and a connecting cylinder pivoting chamber (7) communicating with the suction chamber (6) is formed at the rear part. Further, (8) is a connecting cylinder connected to a suction hose (not shown) of the electric vacuum cleaner, and is a half-opened half which is pivotally supported in the connecting cylinder pivot chamber (7) in a vertically rotatable manner. It is composed of a cylindrical pivot body (9) and a vent pipe (10) axially rotatably attached to the pivot body (9).

Reference numeral (11) is a cleaning rotary member that is rotatably axially controlled in the suction chamber (6) of the main body case (1) so that a part of the cleaning rotary member (11) faces the suction rotary member (5). ) Is a motor (12) housed in the body case (1) as a rotation drive source
The rotational force is transmitted through the belt (13) to rotate at high speed. Further, (14) is a front wheel and (15) is a rear wheel.

In the cleaning rotator (11), (16) is a long-axis synthetic resin rotary shaft having metal shafts (17) (17) at both ends, and the outer periphery of the rotary shaft (16). Two fitting long grooves (19) (19) are formed in a spiral shape in the longitudinal direction between both ends of the rotary shaft body (16) on the surface (18) symmetrically with respect to the rotary shaft center. There is.

(20) is a sliding contact piece that is mounted in the fitting long groove (19) and is provided on the outer peripheral surface (18) of the rotary shaft body (16) in a spiral shape along the longitudinal direction of the rotary shaft (16). It is formed by molding an elastic material such as synthetic rubber or soft vinyl chloride resin, and serves as a contact portion with the mounting base (21) fitted into the fitting long groove (19) and the cleaning floor surface. The sliding contact portion (22) has a substantially cylindrical shape, and a hollow portion (23) is formed in the center of the sliding contact portion (22) along the axial direction.

(24) is a columnar body integrally attached to one end of the rotary shaft body (16), and the columnar body (24) is an annular covering wall (25) that covers the end of the sliding contact piece (20). And a plurality of linear finger-holding concave portions (27) protruding from the outer peripheral surface (26) in parallel with the axial direction, the convex portions (27) .. A part of it is exposed to the outside of the floor suction device (4). And
The cleaning rotor (11) is rotated by putting a finger from the suction port (5) on the convex portion (27) ....

Reference numeral (28) is a rotary pulley that is axially attached to the other end of the rotary shaft body (16), and is wound around the belt (13) and transmits the rotational force of the motor (12) to the cleaning rotary body. Rotate (16) at high speed.

With the above configuration, when the cleaning rotator (11) is rotated at high speed while the floor suction tool (4) is running, the sliding contact piece (20) is
Although it gives a beater effect to a cleaning floor such as a carpet, it comes into contact with the cleaning floor with a substantially cylindrical sliding contact part (22), so the force to hit the cleaning floor is strong and the cleaning floor is strong. Therefore, regardless of the state of the cleaning floor surface, fine dust, dust particles, hair and other dust are knocked out and a high dust winding effect is obtained. Further, since the sliding contact piece (20) as a whole winds up dust on the floor surface, the dust does not get caught in the sliding contact piece (20),
It is sucked into the vacuum cleaner through the connecting pipe (8).

At this time, since the sliding contact portion (22) has the hollow portion (23), the contact portion with the cleaning floor surface is easily bent, and the sliding contact portion (22) more reliably abuts on the cleaning floor surface and has a high dust winding effect. The cleaning floor surface is not damaged.

However, especially in dry seasons such as winter,
Static electricity is generated between the sliding contact piece (20) or the rotary shaft body (11) and the carpet surface which is the cleaning floor surface, and the static electricity causes dust to adhere to the cleaning rotary body (11).

Therefore, at the end of cleaning, the floor suction device (4) is removed from the suction hose and the suction port (5) is directed upwards, so that the suction port (5)
Put your finger on the convex part (27) of the columnar body (24) and rotate the cleaning rotor (11). Since the protrusions (27) are formed on the columnar body (24) almost all around, the cleaning rotator (11) can be easily rotated, while the cleaning rotator (11) is rotated. The rotary shaft body (16) and the sliding contact piece (20) facing the suction port (5) can be easily cleaned without disassembling the floor suction device (4). Dust adhering to the surface of the cleaning rotator (11) due to static electricity is placed on the protrusion (27) of the columnar body (11) by putting a finger on the cleaning rotator (11) as shown in FIG.
While rotating, the suction can be performed by sucking with another suction nozzle (30) connected to the suction hose of the electric vacuum cleaner.

In the above embodiment, the finger-hanging protrusions (27) are formed linearly, but as shown in FIG. 4, the finger-hanging protrusions (32) are formed on the outer peripheral surface (32) of the columnar body (31). 33) may be formed in a spiral shape, and tooth-shaped finger-holding protrusions (36) are formed on the outer peripheral surface of the annular covering wall (35) of the columnar body (34). May be.

(G) Effect of the Invention As described above, according to the present invention, the cleaning rotary member can be easily rotated by placing a finger on the convex portion of the columnar body mounted on the cleaning rotary member, and the floor suction tool can be provided. The cleaning rotor can be easily cleaned without disassembling. Further, since the columnar body is provided at the axial end portion of the cleaning rotator, it is possible to minimize the deterioration of the dust absorption ability due to the reduction of the dust scraping ability of the sliding contact piece.

[Brief description of drawings]

Each of the drawings relates to an embodiment of the floor suction tool of the present invention. FIG. 1 is an exploded perspective view of a cleaning rotary member, FIG. 2 is a sectional view, FIG. 3 is a perspective view seen from the bottom side, and FIG. FIG. 5 is an exploded perspective view of a main part of the cleaning rotary member of this embodiment, and FIG. 5 is a perspective view of the main part of another different embodiment. (1) …… Main body case, (4) …… Floor suction device, (5)
…… Suction port, (11) …… Cleaning rotary body, (16) …… Rotary shaft body, (20) …… Sliding contact piece, (24), (31), (34) …… Columnar body, (27 ) …… Straight finger hook projections, (33) …… Spiral finger hook projections.

Claims (1)

[Claims] 1. A main body case having a suction port formed on the bottom surface,
A cleaning rotary member, a part of which faces the suction opening, and a rotary drive source for rotating the cleaning rotary member are housed, and a sliding contact piece which is in sliding contact with the surface to be cleaned is spirally provided on the outer periphery of the cleaning rotary member. In the attached floor suction tool, at the axial end of the cleaning rotator, a columnar body is fixed facing the suction port, and the columnar body has an outer periphery,
A floor suction tool characterized in that a plurality of convex portions extending substantially in the axial direction of the cleaning rotary member are formed.