JPS631965Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] This invention relates to a vacuum cleaner equipped with a dust removal device that removes dust attached to a coarse filter and a fine filter, respectively.

[Prior art]

Conventionally, as shown in Japanese Patent Laid-Open No. 54-45968, this type of vacuum cleaner has a coarse filter disposed inside the vacuum cleaner body, and a coarse filter disposed approximately parallel to the coarse filter at a distance. The fine filter is rotatably supported with respect to the filter frame of the fine filter around one axis in a direction substantially orthogonal to the surface of the coarse filter, and the plurality of coarse filters are rotated by the rotation. a first dust remover that sequentially hits the protrusions of the first dust remover; the first dust remover is rotatably supported around a common axis with the first dust remover; and by its rotation, each fold of the fine filter is There are some that are equipped with a second dust remover that sequentially hits the top.

[Problem that the invention attempts to solve]

However, according to the conventional device, the configuration for installing the first and second dust removers includes a mounting plate fixed to the filter frame of the fine filter via a plurality of bosses, and a penetrating support for the mounting plate. a mounting member such as a screw attached to an end of the shaft for mounting the first dust remover; and a mounting member such as a screw for mounting the second dust remover; Since the shaft is provided with a flange with a protrusion provided in the middle part of the shaft, the structure as a whole is complex and large-scale, and the number of parts is extremely large, requiring a lot of time and effort to process and assemble. This method has the disadvantage that it requires a lot of time and the manufacturing cost is quite high.

[Purpose of invention]

However, the present invention enables each of the first and second dust removers to be supported on the filter frame of a fine filter with an extremely simple structure without using special supporting members or mounting members as in the conventional ones. It is something to do.

[Means for solving problems]

In order to achieve the above-mentioned object, the present invention, in particular,
A through hole having an axis substantially perpendicular to the surface of the coarse filter and extending in the axial direction is provided in the peripheral wall portion of the filter frame, and a through hole extending in the axial direction is provided at the base of the first dust remover. A flange is provided that comes into contact with the periphery of the opening on one side, and the base of the second dust remover has a
A shaft portion that fits into the through hole and a flange that abuts the opening rim on the other side of the through hole are provided, and each flange of each of the first and second dust removers comes into contact with the opening rim of the through hole. The flange of the first dust remover and the shaft portion of the second dust remover are connected to each other by a connecting member so that they can rotate together in a state where they are in contact with each other.

[Effect]

According to the above means, the flange of the first dust remover is brought into contact with the periphery of the opening on one side of the through hole of the filter frame, while the shaft portion of the second dust remover is fitted into the through hole, and the flange of the second dust remover is fitted into the through hole. By connecting the shaft portion and the flange of the first dust remover with the connecting member while contacting the periphery of the opening on the other side of the through hole, each of the first and second dust removers can be connected. teeth,
It is supported with respect to the filter frame so that it can only rotate integrally with the filter frame in a state where its position is reliably regulated in the axial direction.

The first and second dust removers are rotated integrally by an external power to strike the protrusions of the respective filters, thereby simultaneously removing dust from the coarse and fine filters. I can do it.

An embodiment of this invention shown in FIGS. 1 to 3 will be described below. Incidentally, this embodiment shows the configuration of this invention.

FIG. 1 shows a vacuum cleaner, and the vacuum cleaner body is composed of a main body case 1 and a dust collection case 2, and the dust collection case 2 is detachably attached to the front of the main body case 1. . A cord winding device 5 for winding and storing an electric blower 3 and a power cord 4 is arranged inside the main body case 1, and a rear wheel 6 for running is arranged outside of the cord winding device 5. A suction port 7 to which a hose is connected is provided on the front surface of the dust collection case 2, and a front wheel 8 for running is provided on the bottom surface, and a filter device 9 is detachably arranged at the rear opening. ing. The filter device 9
The coarse filter 10 and the coarse filter 10
A filter frame 11 that supports the filter frame 11 and a fine filter 12
and a filter frame 13 that supports the fine filter 12.

Further, the filter frame 13 of the fine filter 12
A through hole 14 extending in the front-rear direction is provided in the vertical wall portion of the
are provided on the rear surface of the coarse filter 10 and the rear surface of the fine filter 12, and are spaced apart from each other in a direction approximately perpendicular to each filter at corresponding portions on approximately the same circumference with the through hole 14 as the center. A plurality of protrusions 15 and 16 are provided.
As shown in FIG. 2, the protrusion 15 is integrally formed to protrude from a base 17 having a constant width and extending in an arc shape on the coarse filter 10, and the filter frame 11 supporting the coarse filter 10 and the base 17 and the protrusion 15 are integrally molded. As shown in FIG. 3, the protrusion 16 is provided on the filter frame 13 that supports the fine filter 12, and the filter frame 13 and the protrusion 16 are integrally molded.

In the figure, X is the first dust remover, which is placed between the coarse filter 10 and the fine filter 12, and includes a lever 18 made of synthetic resin installed at a slight distance from the coarse filter 10, and the tip of the lever 18. It consists of a coil spring 19 attached to. The lever 18 extends in the front-rear direction substantially perpendicular to the surface of the coarse filter 10, and includes a base portion 18a having a flange 18c at the rear end, and a transmission portion 18b extending downward from the front end of the base portion 18a substantially parallel to the coarse filter 10.
It consists of. In addition, Y in the figure is a second dust remover, which is a lever 2 made of synthetic resin that is placed facing the rear side of the fine filter 12 with a slight interval.
0 and a coil spring 21 attached to the tip of the lever 20. The lever 20
A shaft portion 20c fitted into the through hole 14, a base portion 20a having a flange 20d at the rear end of the shaft portion 20c, and a transmission portion extending downward from the rear end of the base portion 20a substantially parallel to the fine filter 12. 20b
It consists of. Further, the first dust remover X and the second dust remover Y are connected by a connecting member 22, with the flanges 18c and 20d of the levers 18 and 20 sandwiching the filter frame 13 at the opening periphery of the through hole 14, respectively. Moreover, they are each integrally supported so as to be rotatable.

Also, the transmission part 2 of the lever 20 of the second dust remover Y
A knob 23 is provided on the rear side of 0b, and an elongated oval-shaped drive hole 24 is provided above the knob 23, and the drive gear 2 is inserted into the drive hole 24.
A drive shaft 26 installed on the front side of 5 is inserted. The drive gear 25 is rotatably supported within the main body case 1, and is connected to a connecting gear 27, a transmission section 28, and a gear 29 that are also installed within the main body case 1.
It rotates in conjunction with the cord winding device 5 via the cord winding device 5.

In the device configured as above, the dust collection and dust removal operations will be explained. First, when a hose is connected to the intake port 7 and a switch is turned on, the electric blower 3 is driven and dust is sucked through the intake port 7. Most of the dust accumulates in the dust collection case 2, and a part of it adheres to the coarse filter 10. Dust that does not adhere to the coarse filter 10 adheres to the fine filter 12. The clean air that has passed through the fine filter 12 is sucked into the electric blower 3 and then exhausted to the outside from the exhaust port. When the cleaning is finished and the power cord 4 is wound up on the cord winding device 5, the cord winding device 5 rotates and the gears 29,
Drive gear 2 via transmission shaft 28 and connection gear 27
5 rotate in conjunction. When the drive gear 25 rotates, the drive shaft 26 inserted into the drive hole 24 moves in a circumferential orbit, which causes the second dust remover Y (lever 2
0 and the coil spring 21) are made to swing in the left-right direction in FIG. 3, the coil spring 21 at the tip successively flicks each protrusion 16, vibrates the fine filter 12, and drops the fine dust attached to the fine filter 12 downward. At the same time, the first dust remover X (lever 18 and coil spring 19) also makes an integral pendulum movement around the through hole 14, and the coil spring 19 at the tip sequentially flicks each protrusion 15 to vibrate the coarse filter 10. , dust adhering to the coarse filter 10 is removed, thereby reducing ventilation resistance and restoring dust suction performance. Furthermore, when the power cord 4 is pulled out, the coarse filter 10 and the fine filter 12 are simultaneously cleaned of dust in the same process as described above, only by reversing the direction of rotation of the cord winding device 5.

Also, when removing the dust collection case 2 from the main body case 1 and discarding the dust accumulated inside the dust collection case 2,
When the knob 23 of the second dust remover Y is held and moved in a pendulum motion, the first dust remover X also moves in a pendulum manner, making it possible to remove dust from the coarse filter 10 and the fine filter 12 at the same time.

Therefore, automatic dust removal by the cord winding device 5 normally lowers the ventilation resistance of the coarse filter 10 and the fine filter 12 to maintain the dust suction performance.
When discarding dust, use the knob 23 of the second dust remover Y.
Dust can be removed from both filters at will by manual dust removal. In many conventional filter dust removal methods, a rotating body was used to vibrate the peripheral part of the filter by flicking it, but in this embodiment, it is possible to vibrate the central part of each filter by flicking it. , its dust removal effect is very large. In addition, both dust removers X and Y are operated by levers 18 and 20.
Flanges 18c, 20d are attached to the bases 18a, 20a of
By providing the shaft portion 20c, it is easily rotatably supported in the through hole 14, and airtightness is easily maintained, and fine dust does not enter the main body case 1.
There is no adverse effect on the electric blower 3, etc.

Incidentally, there will be no problem in using elastic bodies made of synthetic resin in place of the coil springs attached to the tips of each dust remover X, Y.

[Effect of idea]

As described in detail above, in this invention, in particular, the coarse filter 10 is attached to the peripheral wall portion of the filter frame 13.
A through hole 14 having an axis substantially perpendicular to the surface of the screen and extending in the axial direction is provided, and a flange 18c is provided at the base of the first dust remover The base of the second dust remover Y is provided with a shaft portion 20c that fits into the through hole 14, and a flange 20d that abuts the other side opening periphery of the through hole 14, With the flanges 18c and 20d of the second dust removers X and Y in contact with the opening periphery of the through hole 14, the flange 18c of the first dust remover The shaft portion 20c is connected to the shaft portion 20c by a connecting member 22 so as to be integrally rotatable.

Therefore, the flanges 18c and 20d of the first and second dust removers X and Y are brought into contact with the opening periphery of the through hole 14, and the flange 18c and the shaft portion 2 are brought into contact with each other.
0c by the connecting member 22, both the dust removers X and Y can be supported integrally and rotatably with respect to the filter frame 13. Since the through hole 14 portion of the filter frame 13 is held between the dust removers X and Y, the positions of the dust removers X and Y are reliably regulated in the axial direction and are stably supported relative to the filter frame 13 so that they can only rotate. In addition, when installing both dust removers This has great practical effects, such as the ability to significantly reduce manufacturing costs.

[Brief explanation of the drawing]

Fig. 1 is a sectional view of a vacuum cleaner embodying an embodiment of this invention, Fig. 2 is a sectional view taken along the line A-A in Fig. 1, and Fig. 3 is a sectional view taken along the line B-B in Fig. 1. It is. Explanation of the symbols: 1 is the main body case, 2 is the dust collection case, 10 is the coarse filter, 12 is the fine filter,
13 is a filter frame, 14 is a through hole, 15 and 16 are protrusions, X is a first dust remover, Y is a second dust remover, 1
8a is a base, 18c is a flange, 20a is a base,
20c is a shaft portion, and 20d is a flange.

Claims (1)

[Scope of claim for utility model registration] Coarse filter 10 disposed inside the vacuum cleaner body
, a fine filter 12 arranged at a distance substantially parallel to the coarse filter 10 , and a filter frame 13 of the fine filter 12 that is rotated around one axis in a direction substantially orthogonal to the surface of the coarse filter 10 . A first dust remover and a second dust remover Y that is rotatably supported in conjunction with the filter frame and that sequentially hits the plurality of protrusions 16 of the fine filter 12 by rotation of the second dust remover Y. A through hole 14 is formed in a peripheral wall portion of the coarse filter 13 and has an axis substantially perpendicular to the surface of the coarse filter 10 and extends in the axial direction.
The through hole 14 is provided at the base of the first dust remover
A flange 18c is provided in contact with the peripheral edge of the opening on one side of the second dust remover Y, and the base of the second dust remover Y is provided with the through hole 1.
4, and a flange 20d that abuts the other side opening periphery of the through hole 14, and each flange 1 of the first and second dust remover X, Y
8c and 20d are in contact with the opening periphery of the through hole 14, respectively, and the flange 18c of the first dust remover X and the shaft portion 20c of the second dust remover Y are integrated by the connecting member 22. A vacuum cleaner characterized by being rotatably connected.