JPS6135862B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a dust removal device for a vacuum cleaner, which improves the dust removal effect of a main filter.

Dust removal from the main filter of conventional vacuum cleaners was performed in conjunction with the cord reel pulling out and retracting the cord, so dust was removed while the main filter rotated, and the rotation speed was slow.
A sufficient dust removal effect could not be obtained.

The present invention has succeeded in solving the above-mentioned conventional drawbacks and further improving the sustainability of suction force, and one embodiment thereof will be described below with reference to 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 with 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 connects the cord reel 3 and the connecting device 11.
The rotation of the cord reel 3 is transmitted through the interlocking connection, and the gear portion 7b is interlockingly connected with the large gear 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
Its tip is passed through the shaft 13a of the main filter 13 and fastened to a rotating shaft 14a formed in the substantially disc-shaped prefilter 14 with a screw 15.
3. The prefilter 14 rotates integrally. Reference numeral 16 denotes 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 in the center of the clutch plate.
It is screwed into a screw cut on the outer periphery of the 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
One end of a torsion spring 17 that fits around the bearing part 9b of the filter partition wall 9 and the rotary cylinder shaft 16b of the clutch plate 16 screwed thereto is fixed to 6d, and the other end of the torsion spring 17 is fixed to the bearing part 9b of the filter partition wall 9. It is fixed in the recessed part 9c.

Reference numeral 18 denotes a filter case gasket that comes into contact with the outer periphery of the prefilter 14, is fixed to the filter case 19, and serves as a dust tighter. 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 13, and is fixed to a boss 21 provided in the lower part with screws 22. Reference numeral 2 denotes 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 16.
The clutch plate 16 is engaged with one of the pawls 16a on the outer periphery of the clutch plate 16 to prevent rotation of the clutch plate 16 in one direction. Then press button 26, stopper 2
When the clutch plate 9 swings, it comes off from the pawl 16a, and the rotation of the clutch plate 16 is released. A filter plate 30 is fixed to the main filter 13, and a dust tight packing 31 is fixed thereto.

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. 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 16 moves to a certain extent, pawl 1
6c and the pawl 12b of the large gear 12 are disengaged, and the large gear 12 does not transmit rotation to the clutch plate 16.
It rotates together with the main filter 13 and pre-filter 14. Due to the rotation of the main filter 13, the dust remover 20 in contact with the folds of the main filter 13 acts,
Vibration is applied to the folds of the main filter 13,
Fine dust adhering to the main filter 13 falls. Further, the clutch plate 16 is fixed by the action of the stopper 29 with the torsion spring 17 wound tightly.

Next, press the buckle 6 to remove 4 from the dust box from the main body 1, press the push button 24, and press the button 2 that is linked to this.
6, arm 27, arm shaft 28, stopper 29
is activated, the stopper 29 separates from the claw 16a on the outer periphery of the clutch plate 16, and the rotation stop is released. 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 when the torsion spring 17 is tightened, the clutch plate 1
By the action of the screw 6 and the screw of the filter partition wall 9,
Move to the main body 1 side. After moving a certain amount,
The pawl of the clutch plate 16 and the pawl 12b of the large gear 12 mesh with each other, and the large gear 12 rotates in conjunction with the rotation of the clutch plate 16. The main filter 13 and pre-filter 14 rotate together with this, and the main filter 13 rotates. In this case, the folds vibrate due to the action of the dust remover 20, and the fine dust adhering to the main filter 13 falls. At this time, the torsion spring 17
If the spring pressure is strong, the filter will rotate at high speed, and the fine dust attached to the main filter 13 will be strongly removed. It also spits out the paulownia wood that is stuck on the side, doubling the dust removal effect.

According to the present invention, by pulling out the cord,
The gear rotates via a clutch that is detachably connected to the cord reel's connecting device, and as a result, the clutch plate rotates in a direction to disengage the clutch, accumulating a driving force in the torsion spring that rotates the filter in the opposite direction. At the same time, the gear rotates the filter to remove dust, and at the same time, the stopper prevents excessive accumulation and maintains a certain amount of energy accumulation, so when disposing of garbage, the clutch can be released and the dust box removed from the main body. By releasing the stopper from the outside of the dust box, the driving force can be released at once and the main filter can be rotated at high speed. Therefore, the dust removal effect of the main filter is not only affected by the vibration of the dust remover, but also by the vibration of the filter. It has the advantage of being able to double due to the centrifugal force of high-speed rotation,
Its industrial value is great.

[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 the main parts thereof. DESCRIPTION OF SYMBOLS 1... Main body, 2... Electric blower, 3... Cord reel, 4... Dust box, 7... Clutch with gear, 7a... Clutch part, 7b... Gear part, 9... Filter partition, 9
b...Bearing portion with thread cut on outer periphery, 11...Connection device, 12...Gear size, 13...Main filter, 14
... Prefilter, 16... Clutch plate, 16b... Rotating cylinder shaft with thread cut on the inner periphery, 17... Torsion spring, 20... Dust remover, 24... Push button, 25... Button, 2
7...Arm, 28...Arm axis, 29...Stopper.

Claims (1)

[Claims] 1. The main body includes an electric blower and a cord reel, and a dust box is detachably attached to the main body through a filter partition, and is detachably connected to the cord reel connecting device to the filter partition. A clutch is provided, and a gear is connected to a gear portion of the clutch, and a rotating shaft is fixed to the filter through a bearing portion provided on the filter partition wall, and the gear is fitted onto the rotating shaft, and a one-way clutch is provided. The bearing part has a threaded part that is interlocked and connected to the threaded part cut on the outer periphery of the bearing part, and the threaded part is connected to the threaded part through the threaded part by rotation with the gear that rotates in conjunction with pulling out the cord. A clutch plate is provided which rotates and slides in a direction for disengaging the directional clutch, and a torsion spring is interposed between the clutch plate and the filter partition wall, each end of which is fixed, and energy is stored by rotation of the clutch plate. , a stopper is provided on the filter partition wall that engages to allow rotation of the clutch plate only in the energy storage direction of the torsion spring and prevent reverse rotation, and the stopper is disengaged from the clutch plate. A dust removal device for a vacuum cleaner, wherein a means is provided outside the dust box.