JPH0542078A - Sucking body for electric cleaner - Google Patents

Abstract

PURPOSE:To provide a sucking body of an electric cleaner which facilitates the detaching of a rotary brush. CONSTITUTION:A friction wheel 20 (driven side) is positioned at one hand of a rotary brush 13 while another friction wheel 48 (drive side) is provided in parallel with a pulley part 50 for transmitting the rotation of a motor 16 as drive means through a belt 49 to form a connecting pulley 51 and the friction wheel (drive side) 20 is always forced onto the friction wheel (drive side) 48. Thus, the detaching of the rotary brush 13 from a sucking body 1 does not require the work of mounting or removing of the belt 49, and this provides a sucking body of the electric cleaner a suitable rotary brush of which can be attached according to the cleaned surfaces with excellent maintenance.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a suction body of an electric vacuum cleaner having a rotary brush as a rotary body for scraping up dust, and more particularly to a rotary brush which is easily attached and detached and is excellent in maintenance.

[0002]

2. Description of the Related Art The suction unit of a conventional vacuum cleaner is
As described in No. -11246, there is a structure in which the suction port cover is detached from the upper and lower cases for maintenance of the rotating brush so that the rotating brush can be attached and detached. Also, as a method of removing the suction port cover from the upper and lower cases, it is also described in Japanese Utility Model Laid-Open No. 2-78161.

[0003]

In Japanese Patent Publication No. 2-11246, in order to remove the suction port cover from the upper and lower cases and attach / detach the rotating brush, it is necessary to remove the belt suspended from the rotating brush. Moreover, the bearing part on the belt side came off, which was confusing. Also, the actual Kaihei 2-7
In 8161, even if the suction port cover was removed from the upper and lower cases, the belt could not be removed because the belt suspension was not exposed, and the rotating brush could not be attached or removed. Therefore, it is impossible to attach a rotating brush suitable for each cleaning surface.

The object of the present invention is to eliminate the drawbacks of the prior art,
It is an object of the present invention to provide a suction body of an electric vacuum cleaner in which a rotating brush can be easily attached and detached, is excellent in maintenance, and can be attached with a rotating brush suitable for each cleaning surface.

[0005]

SUMMARY OF THE INVENTION According to the present invention, a suction port whose outer appearance is located above an upper case, a lower case, and a rotating brush which is a rotating body for scraping up dust and which is removable from the upper and lower cases is provided. It is composed of a cover, the friction wheel (driven side) is located on one side of the rotating brush, bearings are provided at both ends to rotatably support the bearing, and the lower case is provided with supporting ribs for holding the bearings. It is configured to be detachable from the upper and lower cases, and a friction wheel (driving side) is provided in parallel with the pulley portion that transmits the rotation of the driving means via a belt to form a connecting pulley, and friction with the friction wheel (driven side). The vehicle (drive side) is made to face each other, and a spring is arranged between the bearing portion on the friction wheel (driven side) side and the support rib provided on the lower case so that the friction wheel (driven side) is always on the friction wheel (driving side). ), A rotating bra There is a suction body of the vacuum cleaner constructed as a detachable part of the friction wheel.

[0006]

According to the present invention, when the rotary brush is taken out for maintenance of the rotary brush, the rotary brush can be detachably attached to the friction wheel portion by removing the suction port cover from the upper and lower cases. It is possible to provide a suction body of an electric vacuum cleaner that is easy and excellent in maintenance, and that can be equipped with a rotating brush suitable for each cleaning surface.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. The suction body 1 forms an outer shell by the upper case 2, the lower case 3 and the suction port cover 4, and a bumper 5 is provided between the lower case 3 and the upper case 2 and the suction port cover 4 to prevent damage to furniture or the like. A casing 6 which is rotatable up and down is provided at the rear end, and a rotatable suction joint 7 is connected to the tip of the casing 6. A horizontally elongated suction port 8 is formed below the front side of the lower case 3, and a pressure control plate 9 that is flexible and holds the suction pressure in the suction port 8 is disposed in the lateral direction in front of the suction port 8. There is. Further, the lower case 3 has the roller 10 on the lower front side.
The wheel 11 is provided on the lower rear side, and the roller 10 and the wheel 11 cause a constant gap between the lower surface of the lower case 3 and the floor surface. Inside the suction body 1, a rotary brush chamber 14 for storing a rotary brush 13 provided with a flexible blade 12 for scraping up dust, and a communication for guiding dust entering from a suction port 8 to a casing 6 and a suction joint 7. A motor 16 serving as a driving means for the path 15 and the rotating brush 13.
There is a motor chamber 17 for housing the motor, and a control board 18 for controlling the rotation of the motor 16. The rotary brush 13 is provided with a flange 19 on one side and a friction pulley 21 fitted with a friction wheel (driven side) 20 having trapezoidal cross-section teeth on the other side, and a rotary core portion provided with a blade 12. Two
A shaft 23 is press-fitted at both ends of the shaft 2 and is rotatably supported by a slide bearing 24. A bearing cover 25 in which the slide bearing 24 is press-fitted is held by a pair of opposing support ribs 26 and 27 provided in the lower case 3. ing. Here, as the material of the friction wheel (driven side) 20, urethane rubber having excellent wear resistance and flexibility for fitting is used.
The motor 16 has anti-vibration rubber (large) 28 and anti-vibration rubber (small) 29 on both sides, and the rotary shaft 30 is a double shaft type having both sides, and the pulleys 31 and 32 and the rotary brush 13 are used for each. It is provided with a bearing portion 34 into which the slide bearing 33 is press-fitted in order to prevent the motor 16 from moving when an overload is applied such as when the motor is locked. A drive wheel 35 driven by rotation of the motor 16 is arranged between the communication path 15 and the lower case 3. The drive wheel 35 has a soft tire 36 on the outside.
Is provided with a protective cover 37 for preventing dust from entering on both sides, is press-fitted into a shaft 39 having a drive pulley 38 for transmitting the rotation of the motor 16, and both ends thereof are rotated by a bearing portion 41 into which a slide bearing 40 is press-fitted. The bearing 41 is freely supported and fitted and fixed by the connecting path 15 and the lower case 3. The rotation of the motor 16 is transmitted to the drive pulley 38 by the belts 43 and 44 via the intermediate pulley 42 on the way to increase the reduction ratio. The intermediate pulley 42 is rotatably rotatably supported by a bearing portion 47 into which a shaft 45 is press-fitted and sliding bearings 46 are press-fitted. The bearing portion 47 is fitted and fixed by the communication path 15 and the upper case 2. is doing. On the other hand, in order to transmit the rotation of the motor 16 to the rotating brush 13, a friction wheel having a groove corresponding to a tooth having a trapezoidal cross section of the friction wheel (driven side) 20 at a position facing the friction wheel (driven side) 20. (Drive side) 48
Is arranged, and the rotation of the motor 16 is paralleled with the belt 49.
A pulley portion 50 that transmits via a pulley is disposed, and the friction wheel (driving side) 48 and the pulley portion 50 are fixed to each other to form a connecting pulley 51. The connecting pulley 51 has a pulley portion 5.
The shaft 52 is press-fitted into 0, the friction wheel (driving side) 48 is fitted and fixed by the E ring 53, and both ends are slide bearings 54.
Is rotatably supported by a bearing portion 55 into which is pressed. Here, the leaf spring 56 is arranged between the bearing cover 25 on the friction wheel (driven side) side of the rotating brush 13 and the support rib 26 provided on the lower case 3, so that the friction wheel (driven side) 20 is always The driving side) 48 is pressed. On the lower side of the control board 18, there is a direction sensor 57 that is rotatably supported to detect the operation direction of the suction body 1. The direction sensor 57 is covered with a sensor holder 58 and a micro switch 59 is fixed to the sensor holder 58. There is. Here, the micro switch 59 is opened / closed according to the rotation direction of the direction sensor 57, the signal thereof is taken into the control circuit, and the rotation of the motor 16 is rotated in the normal direction in accordance with the operation direction of the suction body 1. Also, the mouthpiece 1
Has a display board 60 for displaying the operation direction of the upper case 2
There is a display window 61 on the upper surface. The suction port cover has opening / closing levers 62 and 63 on both sides, and can be detached from the upper case 2 and the lower case 3 by operating them.

In the suction body 1 constructed as described above, the motor 16 rotates in accordance with the operating direction, and the drive wheel 35 rotates in the same direction as the motor 16. On the other hand, the rotating brush 13 is rotated in the opposite direction to the motor 16 by changing the rotation direction due to friction transmission between the friction wheel (driven side) 20 and the friction wheel (driving side) 48 on the way. Therefore, the blade 12 can be rotated in a direction in which the effect of scraping the blade 12 against the cleaning surface is enhanced.
In order to take out the rotary brush 13 for maintenance of the rotary brush 13, if the suction port cover 4 is removed from the upper case 2 and the lower case 3, the rotary brush 13 will be driven by the friction wheel (driven side) 20 and the friction wheel (driving side). (Side) 48 is detachable, so that the rotating brush 13 can be easily attached and detached, which is excellent in maintenance. In addition, when considering the attachment of another type of rotating brush suitable for each cleaning surface. Also,
There is an effect that it is easy to handle.

[0009]

As described above, according to the present invention, when the rotary brush is taken out for maintenance of the rotary brush, the rotary brush is the part of the friction wheel if the suction port cover is removed from the upper and lower cases. Since it is detachable, the rotating brush can be easily attached and detached, the maintenance is excellent, and it is possible to provide the suction body of the electric vacuum cleaner to which the rotating brush suitable for each cleaning surface can be attached. There is.

[Brief description of drawings]

FIG. 1 is a plan view showing a part of a suction body excluding an upper case 2 in a sectional view according to an embodiment of the present invention.

FIG. 2 is a sectional view taken along line AA of FIG.

FIG. 3 is a sectional view taken along line BB of FIG.

FIG. 4 is a plan view showing an embodiment of the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Suction body, 2 ... Upper case, 3 ... Lower case, 4 ... Suction port cover, 8 ... Suction port, 12 ... Blade, 13 ... Rotating brush, 16 ... Motor (driving means), 20 ... Friction wheel (driven side) ), 22 ... rotary core part, 24 ... plain bearing, 2
5 ... Bearing cover, 26, 27 ... Support ribs, 48 ... Friction wheel (driving side), 49 ... Belt, 50 ... Pulley part, 51 ... Connection pulley, 56 ... Leaf spring.

Claims (10)

[Claims] 1. A rotating body for scraping dust into the suction port,
A suction body of a vacuum cleaner, comprising a suction means provided with driving means for driving the rotating body, wherein rotation of the driving means is transmitted to the rotating body by a friction wheel. 2. The connection pulley according to claim 1, wherein a connecting pulley is arranged between the driving means and the rotating body, and the rotation of the driving means is transmitted to the connecting pulley via a belt to cause friction between the connecting pulley and the rotating body. The suction body of the vacuum cleaner characterized by being transmitted by a car. 3. The rotating body according to claim 2, wherein the outer appearance of the rotating body is constituted by an upper case, a lower case, and a suction port cover which is located above the rotating body and is detachable from the upper and lower cases. Is provided with a bearing that rotatably supports
The electric vacuum cleaner, wherein the bearing portion is detachable from the upper and lower cases, and the rotating body can be attached and detached at a friction wheel portion when the suction port cover is removed from the upper and lower cases. Sucker. 4. The rotary body according to claim 3, wherein the friction wheel (driven side) is positioned on one of the rotary cores having blades or brushes for scraping up dust, and bearings are provided at both ends. A friction wheel (driving side) is provided in parallel with a pulley portion that transmits the rotation of the driving means via a belt to form a connecting pulley, and the friction wheel (driven side) and the friction wheel (driving side) are opposed to each other. A suction body for an electric vacuum cleaner, wherein the rotating body is configured to be detachable from the upper and lower cases. 5. The suction body for an electric vacuum cleaner according to claim 4, wherein one of the friction wheel (driven side) and the friction wheel (driving side) is made of a soft material. 6. A suction body for an electric vacuum cleaner according to claim 3, wherein the friction wheel is a grooved wheel. 7. The friction wheel (driven side) according to any one of claims 3 to 6.
The suction body of the electric vacuum cleaner, wherein the rotary body is detachably attached to the rotary body. 8. The friction wheel (driven side) according to any one of claims 3 to 7.
And one of the friction wheels (driving side) is a smooth surface,
A sucker for an electric vacuum cleaner, which is provided with an uneven surface on the other surface. 9. The friction wheel (driven side) according to claim 3, wherein the friction wheel (driven side) is always rubbed by a spring on the friction wheel (driven side) side of the bearing portion that rotatably supports both ends of the rotating body. A suction unit for an electric vacuum cleaner, which is adapted to be pressed against a vehicle (driving side). 10. The lower case is provided with a supporting rib for holding a bearing portion of a rotating body, and a spring is arranged between the bearing portion and the supporting rib on the friction wheel (driven side) side, The suction body of the electric vacuum cleaner, wherein the friction wheel (driven side) is always pressed against the friction wheel (driving side).