JPS5975029A - Floor nozzle for electric cleaner - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a floor nozzle for a vacuum cleaner with a rotating brush.

Structure of conventional examples and their problems In conventional bed nozzles of this type, the rotating brush was simply a rotating brush with brush bristles planted on the outer circumferential surface of the nozzle.
It had four eyes in overall diameter. However, the height of the floor nozzle was unavoidable, and it became an obstacle when cleaning underneath furniture. -1: In order to solve the problem of calluses, we are considering shortening the length of the brush bristles, but in this case, the brushing effect (the effect of scraping up the carpet surface with the elasticity of the brush bristles) will be reduced. However, there was a fundamental problem as a floor nozzle in that the cleaning ability was reduced.

OBJECTS OF THE INVENTION The present invention eliminates these conventional drawbacks, and aims to reduce the size of the rotating brush and, by extension, the floor nozzle, while maintaining a good IF brushing effect.

Structure of the Invention The present invention constitutes a rotating brush by forming grooves in the longitudinal direction of a rotor and planting brush bristles at the bottom of the grooves. The diameter of the rotating brush is reduced accordingly, and the length of the plan bristles is sufficient for the brushing effect.

Description of examples Examples thereof will be described below with reference to the accompanying drawings.

In Figures 1 to 3 (C), the floor nozzle body 1 is obtained by connecting the upper and lower body members 3 and 4 via the pants 2.
A suction chamber 6 with a lower opening as a suction port 6 is formed in the front interior thereof, and a turbine chamber 7 is formed in the rear interior thereof. The turbine chamber 7 is separated from the suction chamber 6 by a partition wall 8, and the rear portion having an opening 9 is set in an arc shape.

10 is provided in the suction chamber 6 in parallel thereto, and the rotor 10
1 is a rotary brush with a part of the bristles 11 implanted in the suction port 6 protruding outside through the suction port 6; Fixed brushes 14 and 15 are attached parallel to the rear of the opening 5, and wheels are provided in front and behind the floor nozzle body 10 to position the suction opening 5 at a constant distance from the surface to be cleaned.

Reference numeral 16 denotes a substantially semi-cylindrical suction joint which rotatably slides on the rear inner surface of the turbine chamber 7, and a connection port 17 is formed from a part of its peripheral wall. More specifically, in the suction joint 16, a shaft 18 and a hollow shaft 19 projecting outward from the side wall thereof are supported by the walls of both sides of the turbine chamber 7. The suction joint 16 rotates while closing the rear opening 9 of the turbine chamber 7, and the connection port 17 is displaced vertically within the opening 9 accordingly. 2o indicates a connecting tube rotatably attached to the connecting port 17 via a ring 21;
An extension tube (not shown) communicating with the suction side of the vacuum cleaner via a hose is detachably connected thereto.

A turbine 22 is provided in the turbine chamber 7, and a part of the outer periphery is surrounded by the suction joint 16. A shaft body 23 extends from -4j through the hollow shaft 19 of the suction joint 16 to the outside of the turbine chamber. is integrally protruded. 24 is a bearing of the shaft body 23 fixed to the floor nozzle body 1, and 26 is the shaft body 23 mentioned above.
Small boob IJ-26 and rotating brush 10 installed at the tip of
This is a power transmission belt stretched between the large pulley 27 provided in the main body.

In other words, the turbine 220 rotation is decelerated to rotation plan 1.
This is so that it is transmitted to o.

Further, the turbine 22 is provided offset to one side of the turbine chamber 7 (first side). 28 and 29 are two vent holes formed in the partition wall 8, one vent 28 facing the lower half of the turbine 22 9, and the other vent 29 not facing the turbine 22, It directly faces the connection port 17 of the suction joint 16. 30 is spring 3
A switching lever 1 is biased in one direction, and a shielding plate 32 protruding from a portion thereof is formed with an opening 33 that selectively communicates with either one of the ventilation holes 28 and 29. 34 is a knob of the switching lever 3Q, and 36 is a knob of the switching lever 30 in conjunction with a protrusion S6 formed on the switching lever 30.
The plate pie that maintains the operating state against the spring 31 of
It is.

The range of rotation of the suction joint 16 with respect to the floor nozzle body 1 is regulated by a distance of 37° to 38° from the stoppers formed therebetween.

In the above configuration, now slide the switching lever 30 to the right in FIG.
8, the suction port 5 - suction chamber 6 - ventilation port 28
The flowing suction air collides with the turbine 22, and then flows through the connection port 17 of the suction joint 16, the connection tube 20, the extension pipe, and the hose to reach the vacuum cleaner. Therefore, the turbine 22 rotates, and its rotational force is transmitted to the rotary brush 10 after deceleration.

Furthermore, when the opening 33 of the shielding plate 32 is communicated with the other vent 29 via the switching lever 30, the suction air
2 flows through the turbine chamber 7 and reaches the suction joint 1eVc, and therefore the turbine 22 and the rotary bushing 1o do not rotate.

During cleaning work, the floor nozzle body 1 can move up and down with respect to the suction joint 16, that is, it can be raised and lowered, so no matter what the worker's posture is, the suction port 5 of the floor nozzle body 1
is opposed to the surface to be cleaned and ensures dust collection.

Now, the rotating brush 10 is the rotor 10 as mentioned earlier.
The brush bristles 11 are planted in the rotor 10', and its structure is such that a groove 39 is formed in the longitudinal direction of the rotor 10', and the brush bristles 11 are planted in the bottom of the groove 39. There is. Of course, the tips of the brush bristles 11 protrude from the outer peripheral surface of the rotor 11'.

Therefore, the diameter of the rotary brush 10 can be reduced by the amount facing into the concave groove 39 of the brush bristles 11, and the overall length of the bristles 11 can be made sufficiently long as in the conventional case, so that the brushing effect is also good. It is something that can be made into something.

In the above embodiment, a turbine was used as a drive source for the rotating brush, but a motor may also be used, and the drive source is not specified.

As described in detail, the present invention uses a rotating brush in which a concave groove is formed in the rotor and brush bristles are planted at the bottom of the groove, so the following excellent effects can be expected. Something-
be.

1. The overall diameter of the rotating brush can be reduced to make the floor nozzle thinner. Therefore, it can be easily cleaned even under furniture, etc.
The cleaning ability of the floor nozzle can be increased.

■ The brush bristles themselves are long enough to provide a better brushing effect.

■ The small diameter of the rotating brush allows the rotation torque to be reduced. Therefore, the drive source that rotates the nozzle only needs to be of a small output, and as a result, the floor nozzle can be made even thinner.
It can be made compact and has great advantages in terms of cost and weight reduction.

■ By moving a knife (knife, scissors, etc.) along the groove, you can easily remove threads wrapped around the rotating brush.

[Brief explanation of drawings]

FIG. 1 is a top view of a floor nozzle according to an embodiment of the present invention with the upper main body member removed, FIG. 2 is a sectional view, and FIG. 3 is an exploded perspective view of a suction joint attachment portion. 1...Floor nozzle body, 1o...Rotating brush, 10'...Rotor, 11...Brush bristles, 39...Concave groove.

Claims (1)

[Claims] A rotating brush is provided in the floor nozzle body, and this rotating brush includes a rotor having a groove formed in the longitudinal direction, and brush bristles that are planted at the bottom of the groove and whose tips protrude from the outer circumferential surface of the rotor. A floor nozzle for vacuum cleaners consisting of.