JPS6135860B2 - - Google Patents

Description

Detailed Description of the Invention The present invention relates to a dust removal device for a vacuum cleaner, which stores energy for removing dust during normal dust removal and releases this energy at once to improve the dust removal effect. This can be done by operating from the outside of the dust removal device, making it possible to remove dust hygienically, and also making it possible to release the energy at will when the dust collection container is removed from the main unit, if necessary. An embodiment thereof will be described below based on the drawings.

In FIGS. 1 and 2, 1 is a main body which houses an electric blower 2 and a cord reel 3 for winding a cord. Reference numeral 4 denotes a dust box having an intake port 5 formed therein, which is detachably attached to the main body 1 with a buckle 6. Reference numeral 7 denotes a geared clutch, which is rotatably attached to a boss 9a of the filter bulkhead 9 with a screw 10, and the clutch portion 7a is interlocked and connected to the cord reel 3 through a connecting device 11 to transmit the rotation of the cord reel 3. , the gear 7b is interlocked and connected to the gear tooth 12. The rotating shaft 12a of the large gear 12 is connected to the filter partition wall 9
is rotatably supported by a bearing portion 9b formed in
The tip part passes through the main filter 13 through the shaft part 13a of the shaft part 13, and the approximately disc-shaped prefilter 14 is inserted into the main filter 13.
The large gear 12, main filter 13, and pre-filter 14 rotate integrally.
Reference numeral 16 designates a clutch plate having a plurality of pawls 16a on its outer periphery, and a thread is cut on the inner circumferential surface of a rotary cylinder shaft 16b at the center of the clutch plate. It is screwed into the screw. A plurality of pawls 16c are formed around the axis of the bottom surface of the clutch plate 16, and mesh with a plurality of pawls 12b formed around the axis of the large gear 12.

Also, a boss 1 provided on the side surface of the clutch plate 16
6d, one end of a torsion spring 17 that fits around the bearing portion 9b of the filter partition wall 9 and the rotating shaft 16b of the clutch plate 16 screwed thereto is fixed, and the other end of the torsion spring 17 is provided on the filter partition wall 9. Recess 9
It is fixed at c.

18 is a filter case gasket that comes into contact with the outer periphery of the prefilter 14;
It is fixed to the surface and acts as a garbage tight. A dust remover 20 is provided in the lower part of the filter case 19 so as to be in contact with the folds of the main filter 1, and is fixed to a boss 21 provided in the lower part with screws 22. 23 is a dust-tight gasket attached to the outer periphery of the filter partition wall 9. A push button 24 is built into a handle 25 provided at the top of the dust box 4, and is adapted to move a button 26 protruding from the filter case 19 in the vertical direction. The button 26 is interlocked with an arm 27, an arm shaft 28, and a stopper 29, and these are made to swing around the arm shaft 28 as the button 26 moves up and down. The end of the stopper 29 is connected to the clutch plate 1.
It engages with one of the claws 16a on the outer periphery of 6,
Rotation of the clutch plate 16 in one direction is prevented. When the button 26 is pressed, the stopper 29 swings and is disengaged from the pawl 16a, thereby releasing the rotation of the clutch plate 16. 30, a filter packing 31 fixed to the main filter 18 is fixed.

In the above configuration, when the cord is pulled out, the cord reel 3 rotates, and the rotation is transmitted to the geared clutch 7 by the coupling device 11. Then, the large gear 12 that meshes with this gear portion 7b rotates, and the clutch plate 1 that meshes with the pawl 12b of the large gear 12 rotates.
The clutch plate 16 is rotated in conjunction with the pawl 16c of No. 6. As a result of this rotation, the torsion spring 17 is tightened, and at the same time, the clutch plate 16 is moved toward the intake port 5 by the screws of the clutch plate 16 and the screws of the bearing portion 9b of the filter partition wall 9. When the clutch plate 16c and the claw 12b of the large gear 12 are moved to a certain extent, the engagement between the clutch plate 16c and the claw 12b of the large gear 12 is separated, and the large gear 12 rotates together with the main filter 13 and the prefilter 14 without transmitting rotation to the clutch plate 16. As the main filter 13 rotates, vibration is applied to the folds of the main filter 1 by the action of the dust remover 20 in contact with the folds, and the fine dust adhering to the main filter 13 falls. Further, the clutch plate is fixed by the action of the stopper 29 with the torsion spring 17 wound tightly.

Next, press the buckle 6 and remove the dust box 4 from the main body.
When the push button 24 is pressed, the button 26, arm 27, arm shaft 28, and stopper 29 that are interlocked with this pass, and the stopper 29 separates from the claw 16a on the outer periphery of the clutch plate 16 to release the rotation stop. As a result, the tightened torsion spring 17 attempts to return to its original state, causing the clutch plate 16 to rotate at a high speed.
Then, since the clutch plate 16 rotates in the opposite direction to that when the torsion spring 17 is tightened, the clutch plate 16 moves in the side direction of the main body 1 by the action of the screws of the clutch plate 16 and the screws of the filter partition wall 9. Or if you move to a certain extent,
Pawl 16c of clutch plate 16 and pawl 12 of gear large 12
b are engaged, the large gear 12 rotates in conjunction with the rotation of the clutch plate 16, and the main filter 13 and pre-filter 14 that rotate together with this rotate. Regarding the main filter 13, due to the action of the dust remover spring 20, The pleats vibrate and the main filter 1
Fine dust attached to 3 or falling. At this time, if the spring pressure of the torsion spring 17 is made strong, the main filter 1 will rotate at high speed.
3. At the same time, the fine dust stuck to the folds is strongly removed, and at the same time, the centrifugal force generated by the high speed rotation also expels the fine dust stuck in the deep part of the folds, doubling the dust removal effect.

According to the present invention, by pulling out the cord,
At the same time as rotating the main filter to remove dust,
The driving force for rotating the main filter can be accumulated and held at a constant level, and when the driving force is released when disposing of garbage, this can be operated from the dust collecting device, making it sanitary. Further, if the dust container is operated by operating a push button provided on the outside of the dust container, the dust removal operation can be performed at will even when the dust container is removed from the main body in order to be moved to a garbage disposal site. Also, while checking the degree of dust removal effect, if it is insufficient, energy can be stored and released repeatedly to repeatedly perform powerful dust removal, which is extremely effective.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, and FIG. 1 is a central vertical cross-sectional view thereof, and FIG. 2 is an exploded perspective view of a main part thereof. 1... Main body, 3... Cord reel, 4... Dust box, 7
...Geared clutch, 11...Direct connection device, 12...Gear size, 13...Main filter, 16...Clutch plate,
17...Torsion spring, 20...Dust removal spring, 24...Push button, 25...Button, 27...Arm, 28...Arm shaft,
29...stopper.

Claims (1)

[Claims] 1 A dust removal device for a vacuum cleaner that rotates a filter to remove dust when the cord is pulled out, and is connected via a one-way clutch to a wheel that rotates the filter in conjunction with a cord reel. a clutch plate that slides in the direction of disengaging the one-way clutch by the rotation thereof, and a clutch plate that is interposed between the clutch plate and the main body side and whose ends are fixed to each other, and energy is stored by the rotation. a torsion spring and the clutch plate only allowing rotation of the torsion spring in the energy storage direction;
a stopper that engages to prevent reverse rotation;
and means provided on the outside of the dust container so as to release the engagement of the stopper with the clutch plate.