JPH0531754U - Vacuum cleaner suction body - Google Patents

Abstract

(57) [Abstract] [Purpose] There is a rotating brush chamber and a belt chamber which are divided by a rib, and the rotating brush is loosely fitted in a through hole formed in the rib. Even if it adheres to the belt, it can be removed. A dust removing tool 20 having a cleaning member 22 made of a flexible nylon thread, animal hair, non-woven fabric or the like is provided, and the tip of the cleaning member 22 of the dust removing tool is in contact with the transmission surface of the belt 15. I did it.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a suction port body of a vacuum cleaner having a rotating brush.

[0002]

[Prior Art]

 Conventionally, as this type of suction inlet, those shown in FIGS. 4 and 5 are known. In the figure, reference numeral 1 is a housing of a suction port body. A rotary brush chamber 2 for accommodating a rotary brush described later is integrally formed in the housing 1, and a suction port 3 is opened in the rotary brush chamber 2. And the suction unit 4 is in communication. Reference numeral 5 is the above-mentioned rotating brush, which is integrally formed with the pulley 6 and has the support shafts 7, 7 fixed to both ends thereof. Ribs 8 and 9 are integrally formed with the housing 1, and form a part of the rotary brush chamber 2. Through holes 10 and 11 are provided in these ribs 8 and 9, and the vicinity of the end of the rotary brush 5 is loosely fitted.

Reference numeral 12 is a belt chamber formed integrally with the housing 1, and is separated from the rotary brush chamber 2 by the rib 8. A bearing 13 for supporting one of the support shafts 7 is fixed to the belt chamber 12, and a motor 14 is also housed therein. Reference numeral 15 is a belt for transmitting the rotation of the motor 14 to the pulley 6, whereby the rotating brush 5 is rotated at a high speed in the direction of the solid arrow in FIG. Reference numeral 16 is a bearing chamber formed integrally with the housing 1, and is separated from the rotary brush chamber 2 by the rib 9. A bearing 17 that supports the other end of the support shaft 7 is fixed to the bearing chamber 16. Reference numeral 18 is a pulley of the motor 14 on which the belt 15 is wound.

In the suction port body configured as described above, dust, cotton dust and the like on the carpet are scraped up by the rotating brush 5 and sucked from the suction port 3 to the suction portion 4. Part of dust, cotton dust, and the like to be sucked by the suction unit 4 passes through the gap between the rotating brush 5 loosely fitted in the through hole 10 and the rib 8 and adheres to the belt 15. . As described above, if the suction port body is used for a long period of time with dust or the like attached, the surface friction coefficient of the belt 15 is significantly reduced, and rotation slip, heat generation, smoke generation, noise, etc. occur.

By the way, the clearance between the rib 8 and the rotating brush 5 in the through hole 10 is necessary to absorb the variation of parts and the variation of assembly, and is also necessary in consideration of the variation of the rotational load. is there. Conventionally, in order to prevent dust and the like from passing through the gap as described above, there is also known one in which a filling material such as foam sponge or felt is attached to the gap.

[0006]

[Problems to be solved by the device]

 If the padding as described above is attached to the gap, it is possible to prevent dust and the like from passing therethrough, but since the padding is pressed against the outer peripheral surface of the rotating brush in the compressed state, the pressure contact force is large. Therefore, friction causes heat generation. This heat generation becomes larger when the cores of the through holes of the rotating brush and the rib are misaligned. This invention solves the problem of the above-mentioned conventional suction port body. Even if dust or the like that has passed through the gap adheres to the belt, it can be removed. It is intended to provide a suction mouth.

[0007]

[Means for Solving the Problems]

 The suction inlet of the vacuum cleaner of the present invention includes a rotating brush whose rotation is transmitted from a power source such as a motor via a belt. The suction inlet of the vacuum cleaner includes a flexible cleaning member. In addition, the dust removing tool is provided, and the tip of the cleaning member of the dust removing tool is in contact with the transmission surface of the belt.

[0008]

[Action]

 In the suction port body of the electric vacuum cleaner configured as described above, dust and the like passing through the gap and adhering to the transmission surface of the belt are removed by the dust remover and do not reach the pulley of the motor or the like.

[0009]

【Example】

 An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 shows a main part of a suction port body of an electric vacuum cleaner related to the present invention. The same parts as those of FIGS. 4 and 5 used for explaining the conventional example are designated by the same reference numerals. Therefore, detailed description thereof will be omitted. Reference numeral 20 denotes a dust remover, which is composed of a base 21 made of plastic or the like and a cleaning member 22 having a base end fixed to the base, as shown in FIG. 2 (a) or (b). ing. The cleaning member 22 is made of flexible nylon thread or animal hair. Reference numeral 23 is a screw for fixing the base 21 to the housing of the suction port body. The dust remover 20 is installed (fixed to the housing) between the pulley 6 of the rotating brush and the pulley 18 of the motor, and the tip of the cleaning member 22 is in contact with the transmission surface of the belt 15.

In the suction port body of the electric vacuum cleaner having the above-mentioned configuration, dust and the like floating in the belt chamber adheres to the transmission surface (inner peripheral surface) of the belt 15 as indicated by reference numeral 24. However, it is dropped by the dust remover 20 and does not reach the pulley 18.

FIG. 3 shows another embodiment of the dust remover 20. This dust remover 20 is made of non-woven fabric or the like, and is less expensive than that of FIG. In the dust remover 20, an adhesive 25 is applied to the base portion thereof, and a plurality of slits 26 for improving flexibility are provided in the place of the cleaning member 22. The adhesive 25 is for fixing the scraping tool 20 to the housing of the suction port body.

In the above embodiment, the dust remover 20 is installed in front of the pulley 18 of the motor, but the dust remover 20 may be installed in front of the pulley 6 of the rotating brush. In the above embodiments, the flat belt is used as the belt 15. However, the invention can be implemented by using a toothed belt as the belt and a toothed pulley as the pulley. In the above embodiment, the cleaning member 22 is made of thread, bristles, non-woven fabric or the like, but any other material can be used as long as it has a restoring property. Although the rotating brush 5 is rotated by the motor 14 in the above embodiment, the rotating brush 5 may be rotated by the aerodynamic (turbine) fan via the belt.

[0013]

[Effect of the device]

 As described above, according to the present invention, the transmission surface of the belt is always cleaned during the rotation of the rotating brush regardless of the gap between the rotating brush and the rib and the mounting position of the rotating brush. It is possible to prevent harmful slip of the belt, heat generation, smoke generation, and noise caused by dust, cotton dust, etc. adhering to the transmission surface of the belt, and the expected effects in terms of quality maintenance and durability. Is large.

[Brief description of drawings]

FIG. 1 shows an embodiment of the present invention and is a schematic side view of a main part of the suction port body related to the present invention.

FIG. 2 shows an embodiment of the present invention and is a perspective view of a dust remover.

FIG. 3 is a perspective view of a dust remover according to another embodiment of the present invention.

FIG. 4 shows a conventional example and is a plan view of a suction port body.

FIG. 5 shows a conventional example and is a side view of a suction port body.

[Explanation of symbols]

 1 Housing 2 Rotating Brush Chamber 3 Suction Port 5 Rotating Brush 6 Pulley 8 Rib 9 Rib 10 Through Hole 11 Through Hole 12 Belt Chamber 14 Motor 15 Belt 18 Pulley 20 Dust Dropper 21 Base 22 Cleaning Member

Claims (1)

[Scope of utility model registration request] 1. A suction port body of an electric vacuum cleaner, comprising a rotating brush to which rotation is transmitted from a power source such as a motor via a belt, and a dust remover having a flexible cleaning member. A suction port body for an electric vacuum cleaner, wherein a tip of a cleaning member of the dust remover is in contact with a transmission surface of the belt.