JPS6110605Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a dust removal device for a vacuum cleaner, and more particularly, to a dust removal device that removes dust from a main filter and a pre-filter at the same time.

This type of dust removal device uses, for example, the rotational force generated when pulling out the cord of a cord reel as a driving source to vibrate the main filter to remove dust attached to it, and at the same time transmits the driving force to the dust removal means provided on the pre-filter. It is also designed to remove dust adhering to the pre-filter. By the way, since the main filter and pre-filter are separated in advance for dust disposal, the driving force is transmitted between the two dust removal means by a separable connection means, and the main filter When combining the filter and the prefilter, it is necessary to always connect the connecting portion securely.

This invention was developed in view of the above, and the object is to provide a dust removal device in which the connection operation of the connecting portions can be easily performed.

An embodiment of this invention will be described below with reference to the drawings.

In the figure, 1 is a main body case which has an electric blower 2 in the upper part, a cord reel device 3 in the lower part, and a communication port 4 on the side, and 5 is detachable from the main body case 1 via a latch 6. This is a dust collecting case attached to a dust collecting case, and has an intake port 7 formed in the front part and an opening 8 formed in the rear part. 9 has a sealing packing 10 fixed on the outer periphery, and a bearing hole 1 in the center.
1. A frame wall plate having a large number of ventilation holes 12 on its outer periphery is removably installed in the dust collecting case 5 so as to close the opening 8 of the dust collecting case 5.

Reference numeral 32 denotes a gear, which has a tooth profile for transmission on its outer periphery, and has a rotary cylinder 13 in the center that is rotatably inserted and supported in the bearing hole 11 of the frame wall plate 9, and this rotary cylinder 1.
A connecting portion 14 is formed within 3. Reference numeral 15 denotes a cylindrical corrugated main filter having a shaft portion 16 rotatably inserted and supported in the rotary cylinder 13 of the gear 32 at its center, and the shaft portion 16 is surrounded by a projecting wall 31 on the intake side. A plurality of protrusions 17 are formed on the exhaust side, and a connector 18 is supported on the exhaust side, which connects the connector 14 of the gear 32 only in one direction and rotates the main filter 15. This shaft portion 16 corresponds to a drive shaft that rotates in response to the driving force from the cord reel device 3 of the main body case 1.

Reference numeral 19 indicates a spring that constantly biases the coupling member 18 to the coupling portion 14; 20 indicates the main filter 1;
A sealing gasket 21 is attached to cover the exhaust side surface of the main filter 15, a part of which is in circumferential contact with the frame wall plate 9; A main striking part 22 extends to the inner surface of the main filter 15 and repels the inner surface, that is, the peak part on the exhaust side when the main filter 15 rotates. An auxiliary striking part 23 extends to the inner surface of the main filter 15 and repels the inner surface of the main filter 15, that is, the peak part on the exhaust side when the gear 32 rotates; With the installed prefilter,
It has a net 24 on one side, a support hole 25 in the center, and an opening/closing lid 26 below for discarding the dust removed by the main filter 15 to the outside. Reference numeral 27 denotes a cleaning element that comes into contact with the outer surface of the net 24 of the prefilter 23 to remove dust.One end of the cleaning element 27 passes through the support hole 25 and has a connecting tool 28 rotatably connected to the prefilter 23. , the connector 28 is provided with a plurality of projections 33 extending toward the shaft portion 16 and engaging with the plurality of projections 17 of the shaft portion 16.

The projecting wall 31 includes a plurality of protrusions 33 of the connector 28.
A filter is provided on the main filter 15 near the intersection with the shaft portion 16, which is a component between the cleaning element 27 and the frame wall board 9, so as to surround the engaging portion of the shaft portion 16 with the plurality of protrusions 17. It is being

29 is rotatably supported by the frame wall plate 9, one side meshes with the gear 32 and the other side engages with the main body case 1.
When the dust collection case 5 is connected to the main body case 1, the intermediate connector is detachably connected to a transmitter 30 which is rotatably attached to the main body case 1 and which transmits the rotational force from the cord reel device 3. .

Since this invention has the above-mentioned configuration, when the cord is pulled out from the main body when using the vacuum cleaner, the rotational force of the cord reel device 3 is transmitted to the gear 32 via the transmitter 30 and the intermediate connector 29. The main filter 15, which is connected to the connecting part 14 of the gear 32 via a connecting tool 18 that is connected only when the cord is pulled out, rotates. For this reason, the main striking part 21 attached to the bearing hole 11 of the frame wall plate 9 repels the inner surface of the main filter 15 to remove dust. At this time, the cleaner 27 connected to the connecting part 17 of the rotating main filter 15 via the connecting tool 28 also rotates to remove dust from the pre-filter 23. Naturally, the auxiliary striking part 22 attached to the rotary barrel 13 of the gear 32 also rotates, but since the main filter 15 is also rotating, no dust removal action occurs.

Thereafter, when the cleaning is finished and the cord is wound up on the cord reel device 3, the cord is transmitted to the gear 32 in the reverse rotation from when it is pulled out.

For this reason, the connecting tool 14 moves the connecting tool 18, and the two do not engage with each other, so that the main filter 15 does not rotate and, of course, the cleaning element 27 does not rotate.

However, the auxiliary striking part 22 attached to the rotary cylinder 13 of the gear 32 rotates, and the main filter 1
Remove dust by flicking the inner surface of 5.

The main filter 15 does not rotate at this time because of the frictional force generated between the seal gasket 20 and the frame wall plate 9 and the force that repels the inner surface of the main filter 15. This is because it is more strongly constructed.

The dust removed from the main filter 15 accumulates on the inner bottom of the pre-filter 23, and is returned to the dust collecting case 5 by opening the opening/closing lid 26. Dust collection case 5
The dust inside can be thrown away to the outside through the opening 8 by removing the frame wall plate 9 to which the main filter 15 and pre-filter 23 are attached.

Also, the pre-filter 23 attached to the frame wall board 9
Since it is attached removably, it can be removed if necessary, and when attached to the frame wall board 9, the protrusion 3 of the connector 28 attached to the cleaner 27
3 and a protrusion 1 integrally formed on the main filter 15
7 is guided to a predetermined engagement position by the presence of the projecting wall 31, and the connection action is always performed reliably, and the projecting wall 31 increases the strength of the projections 17 and 33, so that it can be used for a long time. You can get something that is durable enough.

In the above embodiment, the projecting wall 31 is formed on the main filter 15 near the intersection with the shaft portion 16, but the projecting wall 3 may be formed on the connector 28 attached to the cleaner 27. be.

In other words, the projecting wall 31 includes not only the connecting tool 28, the shaft part corresponding to the drive shaft, and the main filter 15, which are components that rotate by the driving force from the main body case side, but also the main filter 15.
If it is provided in a component between the cleaner 27 and the frame wall board 9, the same effect as in the above embodiment can be obtained. Therefore, it may be provided in the prefilter 23.

As described above, according to the present invention, there is a main body case with a built-in electric blower, a dust collection case detachably connected to the main body case, and a dust collection case detachably provided to close the opening of the dust collection case. a frame wall plate having a ventilation hole; a drive shaft that rotates in response to a driving force from the main body case side; a main filter supported by the frame wall plate and driven in response to a driving force from the drive shaft; A cleaning element that comes into contact with the outer surface of the prefilter to remove dust; and a connector that rotatably connects the cleaning element to the prefilter and has a plurality of protrusions extending toward the drive shaft; A plurality of protrusions that engage with the plurality of protrusions of the coupler are provided on the connector side, and a projecting wall surrounding the engaging portion of the plurality of protrusions of the connector and the plurality of protrusions of the drive shaft is provided with the cleaning element. Since it is provided in the component between the frame wall board, when these are connected, the projecting wall guides the protrusions to the engagement position between them, and this projecting wall prevents dust from adhering to this part. This has the effect that meshing can be performed reliably and the strength of the meshing and engaging portion can be increased.

[Brief explanation of the drawing]

The figures show an embodiment of the vacuum cleaner of this invention, in which Fig. 1 is a longitudinal sectional view of the vacuum cleaner body, Fig. 2 is a longitudinal sectional view of the filter device, Fig. 3 is a perspective view of the main filter, and Fig. 3 is a longitudinal sectional view of the vacuum cleaner body. FIG. 4 is a perspective view of the prefilter. In the figure, 1 is the main body case, 2 is the electric blower,
5 is a dust collection case, 9 is a frame wall board, 12 is a ventilation hole, 1
5 is the main filter, 16 is the shaft portion, 17 is the protrusion, 2
3 is a prefilter, 27 is a cleaner, 28 is a connector, 31 is a projecting wall, and 33 is a projection. In the figures, the same reference numerals indicate the same or corresponding parts.

Claims (1)

[Scope of claim for utility model registration] (1) A main body case with a built-in electric blower, a dust collection case detachably connected to this main case,
A frame wall plate having a removably provided ventilation hole so as to close the opening of the dust collection case, a drive shaft that rotates in response to a driving force from the main case side, and a drive shaft that is supported by the frame wall plate. a main filter that is driven by receiving a driving force from the drive shaft; a cleaning element that comes into contact with the outer surface of the prefilter to remove dust; the cleaning element is rotatably connected to the prefilter; a coupling device having a plurality of protrusions extending to the side, a plurality of protrusions that engage with the plurality of protrusions of the coupling device are provided on the coupling device side of the drive shaft, and the plurality of protrusions of the coupling device and the drive shaft are provided. A dust removal device for a vacuum cleaner, characterized in that a component between the cleaning element and the frame wall plate is provided with a protruding wall that surrounds a portion that engages with a plurality of protrusions. (2) The dust removal device for a vacuum cleaner according to claim 1 of the utility model registration, characterized in that a projecting wall is provided on the prefilter. (3) The dust removal device for a vacuum cleaner according to claim 1, wherein the projecting wall is provided on a component that rotates by a driving force from the main body case side. (4) The dust removal device for a vacuum cleaner according to claim 2 of the utility model registration claim, characterized in that a protruding wall is provided on the connector. (5) The dust removal device for a vacuum cleaner according to claim 2 of the utility model registration claim, characterized in that a projecting wall is provided on the drive shaft. (6) The dust removal device for a vacuum cleaner according to claim 2 of the utility model registration, characterized in that a projecting wall is provided on the main filter.