JPH04105625A - Floor nozzle for vacuum cleaner - Google Patents

Abstract

PURPOSE:To obtain a floor nozzle provided with function according to a life style by arranging a motor or the driving source of an air turbine or the like, a transmitting mechanism for transmitting the driving force of the driving source, and a main agitator to be rotated forward or reversely by the force of the transmitting mechanism. CONSTITUTION:A main agitator 21 is composed of a plurality of spiral agitating bodies 33 which are vertically arranged to be extended in the longitudinal direction of the outer peripheral surface of a roughly-cylinder-shaped rotor 32. Then, the agitating bodies 33 are formed with the flexible material of rubber or the like, and on the one-surfaces of the agitating bodies 33, a plurality of projections 34a are formed, and on the other surfaces, the number of projections shorter than that of the projections 34a, or the projections 34b of levels lower than the levels of the projections 34a are formed. When a carpet is cleaned, then by the agitator 21, a floor nozzle is rotated forward in the pushing direction, and in other words, the nozzle is rotated in the advancing direction, and so with the distortion of the agitating bodies 33 due to the rotation, the projections 34a are to come in contact with the surface of the carpet.

Description

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

2. Description of the Related Art Conventionally, the floor nozzle agitator of this type of vacuum cleaner has generally had brush bristles embedded in the rotor surface, as shown in Japanese Unexamined Patent Publication No. 63-19125. However, there was a problem with threads and hair getting wrapped around it.

Therefore, in order to solve this problem,
As shown in Publication No. 25, a beater 1 made of a flexible material or a thin plate-shaped sliding contact piece is attached to the rotor in order to give vibration to the dust on the surface to be cleaned and to improve the beating effect. A configuration was considered in which the device is fixedly attached and the sliding contact piece is provided with a plurality of protrusions. However, the purpose of the protrusions on the sliding piece is to knock out and scrape up the dirt on the carpet, and when trying to scrape up threads entangled in the carpet, the tip needs to be hard and sharp. It could not be used on any floor other than the wa.

Additionally, depending on the type of net tax, it could cause damage.

Problems to be Solved by the Invention As described above, conventional agitators cannot be used on all floor surfaces, and some floors must be cleaned using only suction power.

Particularly in recent years, the structure of houses has undergone rapid changes, with wooden floors increasingly being used from a sanitary perspective.Furthermore, the idea of luxury has become stronger, and the vacuum cleaner as a tool has also been required to change. Furthermore, with the diversification of lifestyles and the idea of luxury, a variety of wire types are being used, and it has become necessary to accommodate these.

The present invention solves the above-mentioned problems, and aims to provide a floor nozzle with functions compatible with such a lifestyle.

Means for Solving the Problems In order to achieve the above object, the present invention provides a first means that includes a drive source such as a motor or an air turbine, a transmission mechanism that transmits the driving force of the drive source, and the transmission mechanism. and a main agitator that can be rotated forward and backward by the force of the main agitator, and the main agitator is constructed by erecting a plurality of agitation bodies made of a flexible material in the longitudinal direction of the circumferential surface of a columnar rotor, and the agitation body A large number of protrusions are formed on one side of the body, and on the other side, a number of protrusions smaller than the number of protrusions formed on the one surface or a protrusion with a height lower than the height of the protrusions formed on the one surface is formed. It was established.

The second means is that a large number of protrusions are formed on one side of the stirring body, and a polishing member is placed on the other side.

Effect The present invention has the above-described configuration, and in the first means, the number of projections is smaller than the number of projections formed on one surface of the stirring body, or the projections have a height lower than the height of the projections formed on one surface. Since the main agitator is formed vertically in addition to the agitator, it is possible to moderate the degree of striking against the floor surface when the main agitator rotates in the reverse direction, as well as when the main agitator rotates in the normal direction.

In addition, according to the second method, a protrusion is formed on one side of the agitator and a polishing material is placed on the other side, so that the main agitator can be rotated in the normal direction to clean the carpet, and in the reverse direction to clean the carpet, etc. can be polished.

EXAMPLES Hereinafter, examples of the present invention will be described with reference to FIGS. 1 to 6.

As shown in the figure, a nozzle main body 1 is formed by joining upper and lower main body members 3 and 4 via a bumper 2, and has a suction chamber e with a lower opening as a suction port 5 in its front interior. is formed.

The center of the suction port 6 extends to the rear of the nozzle body 1 and is connected to a suction passage 7 whose upper and lower walls are arcuate. Further, inside the nozzle body 1 located behind the suction port 6, there are formed chambers 8 and 9 partitioned left and right by a suction passage 7.One chamber 8 has a small agitator 21 for driving. A motor 10 and a control section 11 thereof are provided in the other room 9, respectively. Reference numerals 12 and 13 denote vent holes for flowing cooling air into each of the rooms 8 and 9, which are covered with filter materials 14 and 15 to prevent dust from entering.

Reference numeral 16 denotes a substantially semi-cylindrical suction joint which is connected to the suction passage 7 so as to be able to rise and fall freely, and a connecting pipe 19 is rotatably connected to a cylindrical connecting port 17 that protrudes from a part of the peripheral wall of the joint through a ring 18. It is attached. An extension pipe (not shown) that communicates with the suction side of the vacuum cleaner via a hose is detachably connected to this connection pipe 19. 2o is a power cord for the motor 1o.

A bearing 2 is installed in the suction chamber 6 in parallel with the suction chamber 6 and rotatably therein.
A main agitator, which is pivotally supported at 2, is provided. A shaft 23 of the main agitator 21 protrudes further to the side than the bearing 22, and a sub agitator 24 is attached thereto.

This sub-agitator 24 is arranged to face an opening 26 formed in the side wall of the nozzle body 1.

Pulley 2 provided on one side of the main agitator 21
A belt 28 is stretched between the motor 6 and a pulley 27 provided on the shaft of the motor 1o. Accordingly, the main and sub-side agitators 21 and 24 are driven by the motor 1o.

29 is a fixed brush installed parallel to the rear of the suction port 6;
Reference numerals 30 and 31 denote wheels provided at the front and rear of the nozzle body 1 so as to position the suction port 6 at a constant distance from the surface to be cleaned.

By the way, the main agitator 21 has a substantially cylindrical rotor 32.
It is constructed by erecting a plurality of spiral stirring bodies 33 extending in the longitudinal direction of the outer peripheral surface.

The stirring body 33 is made of a flexible material such as rubber, and a large number of protrusions 34a are formed on one surface of the stirring body 33 as a first means, as shown in FIG. On the other surface, a smaller number of protrusions than the protrusions 34a or higher protrusions 34b whose height is lower than that of the protrusions 34a are formed.

When cleaning a linear area, the agitator 21 is rotated in the forward direction relative to the direction in which the floor nozzle is pushed, that is, in the direction in which the floor nozzle advances, and the agitator 33 is deflected by this rotation, causing the protrusion 34 a comes into contact with the carpet surface. Therefore, the protrusion 34b on the other side does not come into contact with the carpet surface during forward rotation. The rotation of the agitator 21 is normally set in the forward rotation direction, but the connection pipe 1
By switching the switch 35 provided at the motor 9, the motor 10 can be rotated in the opposite direction.
Due to the deflection of the stirring body 33 due to this reverse rotation, the protrusion s4b comes into contact with the paper-like surface.

As shown in FIGS. 3 and 4, the second means includes a stirring body 3
A large number of protrusions 34C are formed on one side of 3, and the other side is a raised fabric 36 made of a material such as nylon thread, or a polishing material made of a flexible elastic material such as felt or urethane foam. Member 37 is attached in any suitable manner. The protrusion 34c and the polishing material 37 are applied to the motor 1 at the same time as the first means.
By reversing o, it touches the carpet or the floor.

In the above configuration, when the floor nozzle 1 of the agitator 21 rotates forward, the plurality of protrusions 34& of the agitator 33 come into contact with the paper-like surface and the many protrusions 34a touch the paper-like surface. Stir while stirring. As a result, the protrusion 34a
The larger the number, the more dust can be removed from the surface of the paper package. In this case, since the agitator 21 rotates in the normal direction with respect to the direction of movement of the floor nozzle 1, the relative speed of the agitator 33 with respect to the floor surface is slow, and the loose threads are pushed backwards. This means that the raking force becomes weaker. Therefore, when the switch 36 is changed to reversely rotate the agitator 21, the relative speed of the agitator 33 to the floor surface increases with respect to the direction of movement of the floor nozzle. 33, it picks up garbage extremely well by moving forward while scraping it up. In this case, since the number of protrusions 34b is smaller than the number of protrusions 34a, it is possible to reduce damage to the paper-like paper due to mechanical force and increase the effect of picking up thread waste. This effect can also be reduced by making the height of the protrusion 34a lower than the height of the protrusion 34a.

Next, in the second means, when cleaning paper-like materials, the protrusion 34C is rotated forward to remove lint, etc., in the same manner as the first means, and when cleaning wooden floors or tatami mats, it is rotated in the opposite direction. , the polishing member 37 comes into contact with the floor surface, and the polishing and wiping effects can be completed without causing any damage.

Effects of the Invention As is clear from the above description of the embodiments, according to the present invention, the direction of rotation of the agitator can be selectively selected, and protrusions of different numbers and heights are provided on the front and back surfaces of the agitator. This allows for more efficient cleaning, as it can be used when you want to forcefully remove strong dust adhering to the line type and when you don't want to damage the paper.

By combining the moving direction of the pick and floor nozzle and the rotating direction of the agitator, it is possible to select and use the prevention of damage to the wire type and the effect of picking up threads, etc. Also,
To provide a floor nozzle for a vacuum cleaner, which is capable of polishing or wiping the floor by rotating an agitator by attaching a polishing member to an agitator, and has functions corresponding to modern lifestyles. I can do it.

[Brief explanation of the drawing]

FIG. 1 is a top view of a floor nozzle of a vacuum cleaner according to an embodiment of the present invention with the upper body member removed, FIG. 2 is a sectional view of the same side, and FIG. 3 is a first means of the agitator. Figures 4 and 6 are side sectional views of an embodiment of the second means of the agitator. 1... Nozzle body, 10... Motor (
drive source), 21... Agitator-133...
... Stirring body, 34a...Protrusion, 34b...
...Protrusion, 34C...Protrusion, 37...
・Polished parts. Name of agent: Patent attorney Akira Koeji and two others

Claims (2)

[Claims] (1) A drive source such as a motor or air turbine,
A transmission mechanism that transmits the driving force of the drive source, and a main agitator that can freely rotate in forward and reverse directions by the force of the transmission mechanism,
The main agitator is composed of a plurality of stirring bodies made of a flexible material erected in the longitudinal direction of the circumferential surface of a columnar rotor, and a large number of protrusions are formed on one side of the stirring body, and a large number of protrusions are formed on the other side of the stirring body. The floor nozzle for a vacuum cleaner is provided with a lower number of projections than the number of projections formed on the one surface or a height lower than the height of the projections formed on the one surface. (2) A floor nozzle for a vacuum cleaner according to claim 1, wherein a large number of protrusions are formed on one side of the stirring body and a polishing member is arranged on the other side.