JPH0234131A - Floor nozzle for vacuum cleaner - Google Patents

Abstract

PURPOSE:To maintain a high dust collecting performance for a long period by forming many triangular cone projections on at least one surface of a projecting line band provided on the circumference surface of the rotor of an agitator, causing the head inclinations of the projections to be sharp, and causing the side inclinations of the other sides to be gentle. CONSTITUTION:In a floor nozzle main body 4, an agitator 13 and a driving source 22 for it are provided, and the agitator 13 is composed by providing a projecting line band 32 made of a flexible material on the circumference surface of the rotor. On an least one surface of the projecting line band 32, many triangular cone projections 33 are formed, simultaneously, the head inclinations of the projections 33 are made sharp, the side inclinations of the other sides are made gentle, and moreover, inclined parts are made long. As a result, even when the projections 33 are abraded, since the triangular cones are executed as shown in the figure and the part of an angle 33' is always made into an edge, a thread dust and a hair can be hooked and taken, and the high dust collecting performance can be maintained for a long period.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a nozzle for a vacuum cleaner having an agitator.

Conventional technology Conventionally, this kind of agitator (provided with a ridge band).

For example, a configuration as described in Japanese Unexamined Patent Publication No. 61-33634 was adopted. Furthermore, the details are explained in the 4th section.
To explain with a diagram, 1 is the agitator - 2 is the agitator -1
It is a protrusion strip provided in a spiral shape, and has a large number of protrusions 3 that come into contact with the floor surface of the protrusion strip. Still, the protrusion 3 was conical.

Problems to be Solved by the Invention However, in the above configuration, a large number of conical protrusions are formed on the protrusion band, but since the protrusion band is made of a soft and flexible material, only one conical protrusion is formed. The disadvantage was that the tips of the shaped protrusions were easily worn out and quickly became rounded. Therefore, there was a problem that the tip became rounded and caught lint or hair, making it impossible to remove it.

The present invention solves these conventional problems and aims to maintain good dust collection by an agitator for a long period of time.

Means for Solving the Problems In order to achieve the above object, the present invention includes an agitator and its driving source installed inside the floor nozzle body.

The above-mentioned agitator is constructed by providing a protruding strip made of a flexible material on the circumferential surface of the rotor, and a large number of triangular pyramid-shaped protrusions are formed on at least one surface of the protruding strip. The tip of the protrusion has a steep slope.

The other side slope is gentler and longer.

According to the above structure, even if the tip end slope of the protrusion is worn out, the edge shape is maintained at the ridge formed by the apex portion of the side slope.

Example The embodiments will now be described with reference to the accompanying drawings.

In Figs. 1 to 3, the floor nozzle main body 4 is
It is obtained by joining the upper and lower body members 6 and 7 through the main body members 6 and 7, and the front interior thereof has a suction chamber 9 with the lower opening as the suction port 8, and the rear interior thereof has a turbine chamber 10. Each is formed separately. The turbine chamber 10 is separated from the suction chamber 9 by a partition wall 11, and the rear portion having an opening 12 is set in an arc shape. Reference numeral 13 denotes an agitator 514 installed in the suction chamber 9 in parallel with the agitator 13. Reference numeral 15 denotes a fixed brush installed parallel to the rear of the suction port 8. .

Reference numerals 16 and 17 denote wheels provided at the front and rear of the floor nozzle body in order to position the suction ports 8 at a constant interval from the surface to be cleaned.

1B is a substantially semi-cylindrical suction joint that rotatably slides on the rear inner surface of the turbine chamber 1o, and a floor nozzle pipe is connected to a cylindrical connection port 19 protruding from a part of the peripheral wall through a ring 2Q. 21 is rotatably attached, and an extension pipe connected to the suction side of the vacuum cleaner via a hose is detachably connected to the floor 5 nozzle pipe 21.

Reference numeral 22 denotes a turbine which is disposed in the turbine chamber 10 and whose outer periphery is partially surrounded by the suction joint 18, and a shaft body 2 which passes through the rotating shaft on one side of the suction joint 18 and projects to the outside of the turbine chamber.
3 are integrally provided.

A power transmission belt 24 transmits the rotation of the turbine 22 to the agitator 13 via a pulley 26.

Further, the turbine 22 is arranged so as to be biased toward the belt 24 arrangement side of the turbine chamber 1o. 26, 2 are two vent holes formed in the partition wall 11, one vent 26 facing the lower half of the turbine 22, and the other vent 27 facing the turbine 22.
2 and directly opposite the connection port 19 of the suction joint 1/').

28 is a switching lever, and a shielding plate 29 protrudes from a part thereof.
An opening 3o that selectively communicates with either one of the vent holes 26 and 2T is formed in the opening 3o.

In the above configuration, when the switching lever 28 is now slid to the right in FIG. 2 and the opening 30 of the shielding plate 290 is communicated with the vent 2e, the flow flows from the suction port 8 to the suction chamber 9 to the vent 26. The suction air impinges on the turbine 22 and then on the suction joint 1
8 connection port 19 → floor nozzle pipe 21 → extension pipe → hose to reach the vacuum cleaner. Therefore, the turbine 22 rotates, and its rotational force is transmitted to the agitator 13.

Incidentally, the agitator 13 is constructed by attaching a protrusion band 32 to the outer circumferential surface of a single rotor 31 in the longitudinal direction. This protrusion band 32 is made of a flexible material such as rubber.

A large number of protrusions 3 are provided on at least one surface (the side surface in the direction of rotation).
3 is formed.

The protrusion 33 has a triangular pyramid shape as shown in FIG.
Moreover, the tip of the protrusion 33 has a steep slope, and the other side slope is gentle and long.

Now, when the agitator 13 is rotating clockwise as shown in FIG. 3, the protrusion band 32 is displaced in the counter-rotation direction when it comes into contact with the surface to be cleaned, so that it follows the same wave cleaning surface. Thereafter, the protrusion band 32 moves relatively to stroke the surface to be cleaned, and at this time, the dust is squeezed by its numerous protrusions 33 and released from the surface to be cleaned.

The loose dust is effectively guided into the floor nozzle body 4 by the repelling action of the ridge band 32 when it restores itself in the diametrical direction (due to elasticity and centrifugal force) and by the suction force of the vacuum cleaner.

Here, when the protrusion band 32 is in contact with the surface to be cleaned, it blocks the flow of air from the front, and the suction force of the vacuum cleaner is concentrated on the surface to be cleaned. to encourage

Further, since the protrusion band 32 is band-shaped, it is possible to prevent string-like dust such as lint from becoming entangled.

Here, the protrusion 33 is in the shape of a triangular pyramid, and its tip is steeply sloped, the other side slopes are gentle, and the slope is long, so the protrusion 33 is worn out, as shown in FIG. Even if it looks like a broken line, since it is a triangular pyramid, the ridge 33' always becomes an edge, so lint and hair can be caught and removed, and high dust collection performance can be maintained for a long period of time.

Effects of the Invention As described above, in the present invention, the agitator installed inside the floor nozzle main body is composed of a rotor and a flexible protrusion band provided in the longitudinal direction of the circumferential surface of the rotor, and in addition, at least one of the protrusion bands is By forming a large number of protrusions on one surface, dust can be accurately released from the surface to be cleaned.

Furthermore, the ability to absorb dust into the floor nozzle body is also significantly improved. Furthermore, unlike conventional brush bristles, there is no tangle of string-like dust such as lint, and as a result, the agitator function can be performed well at all times, and maintenance can be simplified.

“Also, by making the protrusion into a triangular pyramid shape, making the tip slope steep, and making the other side slopes gentler and making the slope longer, high dust collection performance for lint and hair can be maintained for a long period of time. It is something.

[Brief explanation of the drawing]

Fig. 1 is a partial perspective view of a protrusion band showing an embodiment of the present invention, Fig. 2 is a top view with the floor nozzle upper main body member removed, Fig. 3 is a sectional view, and Fig. 4 is a conventional FIG. 3 is a partial front view showing the agitator of FIG. 4...Floor nozzle body, 13...Agitator-32...Protrusion band, 33...Protrusion. Name of agent: Patent attorney Shigetaka Awano and 1 other person?
- Moxibustion tea deficiency 1fI3 Figure 4

Claims (1)

[Claims] An agitator and its driving source are installed inside the floor nozzle main body, and the agitator is configured by providing a protruding band made of a flexible material on the circumferential surface of a rotor, and at least one side of the protruding band As well as forming numerous triangular pyramid-shaped protrusions,
A floor nozzle for a vacuum cleaner in which the tips of these protrusions are steeply sloped, the other side slopes are gentle, and the sloped portions are long.