JPS6215205B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a vacuum cleaner in which dust filtered by a filter device is collected in a detachable dust collection box.

In conventional vacuum cleaners, the dust collector is
Most dust collection boxes have a removable filter attached to the opening on one side of the dust collection box. Therefore, in order to dispose of the dust collected inside, you need to remove the dirty filter and open it on one side of the dust collection box. had to be opened, which caused problems in terms of hygiene.

In order to solve this problem, a device was devised in which a dust collection box is provided below the filter device in a removable manner so that only this dust collection box can be removed when disposing of dust.

For example, the device shown in Japanese Utility Model Publication No. 49-28364 has a main body with a built-in electric blower and a movable lid equipped with an air flow path and a flat filter device. A removable dust collection box is located below the filter. Further, in Japanese Utility Model Publication No. 49-21017, a removable dust collection box is provided below a cylindrical filter device, and a spiral dust feeder is provided which rotates in contact with the inner surface of the filter device.

By the way, in these conventional devices, when the dust collection box is removed to dispose of the dust, the dust remaining in the filter device may fall carelessly and contaminate the floor surface. As a measure to prevent this contamination, a shutter that is electromagnetically opened and closed has been added to the top of the dust collection box (Japanese Utility Model Publication No. 30547/1983), but this required a very large-scale structure and was difficult to put into practical use.

The present invention solves these conventional drawbacks, and uses a pressure plate provided to press dust to partition the lower part of the filter device when disposing of dust, so that the dust remaining in the filter device can be removed from the floor surface, etc. This prevents the objects from falling.

The configuration of the present invention will be explained in detail below based on FIGS. 1 to 10.

In the figure, 1 is the main body of the vacuum cleaner with a built-in electric blower 2, 3 is a bottom cover provided at the bottom of the main body 1, 4 is a soundproof cylinder supporting the electric blower 2 via a lower support 5, and 6 is on the upper support that supports the upper part of the electric blower 2.

Reference numeral 7 denotes a main body partition wall that supports the soundproof cylinder 4 and holds a cord winding device 9 for winding the power cord 8 between the main body lower cover 3; 10 a soundproof cylinder 4;
This is an exhaust port that discharges air exhausted from the exhaust through the exhaust sound absorbing material 11. 12 is a main body lid fixed to a lid mounting bracket 14 that rotates around a lid shaft 13 fixed to the main body 1; 15 is a front lid having a suction port 16; 18 and the filter outer frame 17
The front cover 15 and the front cover 15 are jointly fixed to the main body cover 12 with screws 19. 20 fits into the annular protrusion 21 of the main body lid 12 and a part of the lid abutment plate 22, and
It's a filter pack. Reference numeral 23 designates a secondary filter having a wave-shaped filter material 24 for collecting fine dust, which is press-fitted to the filter packing 20 to prevent dust leakage, and whose lower part is supported by the filter receiving portion 26 of the primary filter 25. Fixed. The primary filter 25 is formed into a substantially cylindrical shape, and has mesh portions 27 at multiple locations to collect coarse dust, and a locking portion 29 is fitted into a hook hole 28 formed in the filter outer frame 17. It is fixed. 30 is an elastic outer frame gasket fitted to the filter outer frame 17; 31 is a dust collection box located between the main body lower cover 3 and the primary filter 25; a dust collecting section 32 for collecting dust; Plane portion 3 that comes into contact with packing 30 to prevent air leakage
3. It has a flange 34 provided around the entire circumference to prevent dust from falling out, and an L-shaped protrusion 35 that draws out dust from the suction port 16, which has a substantially L-shaped cross section and projects upward from the flat surface. . 36 is a dust collection box handle fixed to the dust collection box 31, 37 is a dust bag made of an impermeable material attached to the inner surface of the dust collection box 31, and 38 is rotatable and slidable on the inner circumference of the primary filter 25. The provided press plate 39 is a fine dust valve mounting portion formed in a concave shape approximately in the center of the press plate 38,
It has a fine dust outlet 40. A cylindrical sliding wall 41 that slides on the inner surface of the primary filter 25 is provided on the outer periphery of the pressing plate 38, thereby simultaneously forming a fine dust receptacle 42. Reference numeral 43 denotes a dust removal plate protruding from the lower surface of the pressing plate 38, which scrapes off coarse dust adhering to the primary filter 25 in the direction of the dust collection box 31. 44
is a fine dust receiving plate which is fixed to the fine dust valve mounting part 39 of the pressing plate 38 with screws etc. and closes the fine dust valve mounting part 39, and is located at a position opposite to the fine dust discharge port 40 by about 180 degrees. A cylindrical rotating shaft 47 with a plurality of passive pawls 46 formed at the tip is provided approximately at the center, and is configured to rotate and slide on a bearing 48 of the secondary filter 23. ing. Reference numeral 49 designates a fine dust valve inserted into the space formed between the fine dust valve mounting portion 39 and the fine dust receiving plate 44, and is made of an elastic material such as rubber, and has a through hole formed therein to accommodate the fine dust reservoir 50. The central part is attached and fixed to the tip of the pressing plate shaft 51 with a fixing screw 52, and the pressing plate 38 and the fine dust receiving plate 44 are integrated and are attached to a fixed part such as the primary filter 25. It is constructed so that it can rotate or slide relative to each other. 53 is the primary filter 25
A fine dust collection plate integrally formed with the above-mentioned pressing plate 3.
8 and the fine dust receiving plate 44 rotate, the fine dust accumulated on the fine dust receiving plate 42 is collected into the fine dust intake port 45. Reference numeral 54 denotes a check valve mounting plate slidably fitted to the sliding wall 41, on which the lower end of the elastic thin plate shielding valve 55 is attached, and when performing normal cleaning, the secondary filter 23 and the filter outer frame 17 are attached. When the dust is thrown away, the pressure plate 38 is lowered and the suction port 16 and the secondary filter 23 are in direct communication with each other. The intake port 57 is closed to prevent coarse dust from entering the secondary filter 23 side. A buckle 58 is slidably provided on the upper surface of the main body lid 12, and is biased by a buckle spring 59 so that a buckle locking portion 60 is engaged with a buckle hooking portion 61 provided integrally with the main body 1. The press plate shaft 51 is fitted into the inner periphery of the rotating shaft 47 of the fine dust receiving plate 44, and is configured to be rotatable relative to the fine dust receiving plate 44 together with the fine dust valve 49, and has a push button on the upper part. 62 is installed by press-fitting it. Reference numeral 63 denotes a fixing plate that presses and fixes the press plate shaft gasket 64. It fits into the sliding groove 65 provided on the press plate shaft 51 and the push button 62 to stop the rotation of the press plate shaft 51, and also prevents the press plate shaft from rotating. A cylindrical spring seat 66 is integrally formed on the inner diameter of the push button 62.
A push button spring 67 is held between the two. The button 62 is prevented from coming off by fitting a button locking part 68 into a locking hole 69 provided in the press plate shaft 51, and has a buckle operating part 70 formed above, and an inclined part provided in the buckle 58. 71, the buckle 58 is moved against the force of the buckle spring 59, and the buckle locking portion 6
0 and the buckle hook part 61. A stop protrusion 72 is provided between the button locking part 68 and the buckle operation part 70, and after the push button 62 is pushed in and the buckle 58 is removed, the buckle 58 and the stop protrusion 72 are engaged and stopped at that position. It is configured as follows. 73 is a dust removal gear, and the secondary filter 2
The fine dust receiving plate 4
A transmission pawl 7 that engages with a passive pawl 46 provided at the upper end of 4.
4, and also forms a diaphragm 75 that transmits vibrations to the secondary filter 23 to remove fine dust. 76
is a guide rod formed integrally with the push button 62 and prevents the push button spring 67 from buckling. The cover plate 22 is fixed to the main body cover 12 and forms an air passage 77 that communicates between the upper part of the secondary filter 23 and the front negative pressure part of the electric blower 2, and connects with the intake gasket 78 attached to the main body 1. Prevents air leakage when they come into contact. 79, as shown in FIG.
A transmission shaft 82 that transmits power to the transmission clutch 81 is a clutch spring that applies biasing force to the transmission clutch 81, and is supported by a transmission bearing 83. 84 is a geared passive clutch rotatably attached to the main body lid 12, and the transmission clutch 81
The rotating force received from the dust removal gear 73 is transmitted to the dust removal gear 73. 8
5 is a lid spring held between the main body 1 and the lid abutment plate 22, and when the buckle 58 is released, the main body lid 12
is biased to lift upward. Reference numeral 86 denotes a lid stopper provided on the filter outer frame 17, which comes into contact with a stopper receiver 87 of the main body 1 when the main body cover 12 opens and moves upward to restrict the rotation of the main body cover 12. Reference numeral 88 has a built-in suction amount display device 89, and a main body handle fixed to the main body lid 12, 90 is a safety device that allows air to flow in when the secondary filter 23 etc. is clogged, 91 is a front wheel, and 92 is a rear wheel. be.

In the above configuration, when cleaning, when the hose connection port is inserted into the suction port 16 of the front cover 15 to suck in dust, most of the coarse dust is transferred to the dust collection section 32 of the dust collection box 31.
The air is collected in the net portion 27 of the primary filter 25, and after passing through the net portion 27, the air passes through the outer periphery of the primary filter 25 and enters the secondary filter 23.
The fine dust flows into the filter medium 24 and is captured by the filter medium 24. The air that has passed through the secondary filter 23 is passed through the air flow path 77.
After being sucked into the electric blower 2 through the soundproof tube 4
After passing through, it is discharged outward from the exhaust port 10. After cleaning is completed and the power cord 8 is wound into the cord winding device 9, when the power cord 8 is pulled out for cleaning again, the cord winding device 9 rotates and the pinion 80, transmission shaft 79, and transmission clutch 81 are rotated. , transmits rotational force to the dust removal gear 73 via the passive clutch 84. When the dust removal gear 73 rotates, the diaphragm 75 vibrates the filter medium 24 to cause the fine dust adhering to the secondary filter 23 to fall downward, and is caught by the fine dust receiver 42. Further, since the transmission pawl 74 of the dust removal gear 73 and the passive pawl 46 of the fine dust receiving plate 44 are engaged,
When the dust removing gear 73 rotates, the pressing plate 38 fixed to the fine dust receiving plate 44 also rotates, and the dust removing plate 43 scrapes off the coarse dust attached to the primary filter 25 and peels off the coarse dust from the mesh portion 27. and restore the dust suction performance. As the pressing plate 38 rotates, the fine dust accumulated on the fine dust receiver 42 is collected by the fine dust collecting plate 53 and introduced into the fine dust intake port 45. The fine dust reservoir 50 of the fine dust valve 49 collects the fine dust that has flowed in from the fine dust intake port 45, and when the press plate 38 further rotates and the fine dust reservoir 50 and the fine dust discharge port 40 overlap, the fine dust is removed. is discharged to the dust collection box 31 side. Next, when the dust in the dust collection box 31 is to be thrown away, when the push button 62 is pressed, the pressing plate 38 connected to the pressing plate shaft 51 moves toward the dust collection box 31, and the sliding wall 41 moves toward the primary filter 25. Since the coarse dust adhering to the primary filter 25 is scrubbed and compressed while being pushed into the dust collecting part 32, the mesh part 27 of the primary filter 25 becomes clean and free of coarse dust, especially cotton waste. When the push button 62 is pushed in, the stop protrusion 72 is pushed over the slope 71 of the buckle 58, but since the height is low, the buckle 58
The button 62 will not be unlocked, and the pushbutton 62 will not be released.
When pressed, the buckle operating section 70 pushes the inclined section 71 and moves the buckle 58 against the force of the buckle spring 59, so that the buckle locking section 60 is disengaged from the buckle hooking section 61 and the lock is released. After pushing the push button 62 to the point where it cannot be pressed anymore, when the push button is stopped, the buckle 58 is unlocked and the main body lid 12 is being pushed away from the main body 1 by the biasing force of the lid spring 85. Therefore, the main body lid 12 is opened upward with the lid shaft 13 as the center of rotation. At the same time, the push button 62 is returned upward by the force of the push button spring 67, and the buckle 58 is also returned to its original position by the force of the buckle spring 59.
is moved upward with a slight gap first by the force of the lid spring 85, so the ends of the buckle hooking part 61 and the buckle locking part 60 come into contact and are not locked. When the push button 62 returns slightly, the stop protrusion 72 and the buckle 58 engage to stop the return of the push button 62, and the push plate 38 also stops at a position almost covering the net portion 27 of the primary filter 25. When the main body lid 12 is opened, the primary filter 25
The chances of dirty surfaces being visible or fine dust falling are reduced. When the main body lid 12 opens upward, the lid stopper 86 of the filter outer frame 17 and the stopper receiver 87 provided on the main body 1 are joined to prevent the lid from opening. The position where the stopper receiver 87 and the lid stopper 86 are joined is set so that there is a slight gap so that the flange 34 of the dust collection box 31 does not come into contact with the outer frame packing 30. After opening the main body lid 12, pull out the dust collection box 31 by holding the dust collection box handle 36, and close the mouth of the dust bag 37 as shown in Fig. 3. can be thrown away. Also dust bag 37
Even if dust is collected directly in the dust collection section 32 of the dust collection box 31 without using the The amount of dust thrown up when discarded is greatly reduced. After discarding the dust, attach the dust bag 37 to the dust collection box 31 and press the dust collection box handle 36.
When the main body cover 12 is pressed downward to close the main body lid 12, the buckle lock 60 first contacts the buckle hook 61, so the buckle 58 resists the biasing force of the buckle spring 59. and move the buckle 58.
Then, the stop projection 72 is released, and the push button 62 and the push plate 38 are moved upward by the force of the push button spring 67 and returned to their original positions. When the main body cover 12 is further pushed down, the buckle locking part 60 and the buckle hooking part 61 are locked, and the main body cover 12 is joined to the main body 1, making it possible to clean.

In the above embodiment, the push plate 38 is returned upward by the force of the push button spring 67, and the stop protrusion 72 and the buckle 58 are engaged to stop the push button 62 and the push plate 38 from returning upward. However, the push button spring 67 may be eliminated and the push plate 38 may be pulled up by human power.

As described above, the present invention includes a main body having a built-in electric blower, etc., a rear end rotatably supported by the rear end of the main body, and provided so as to be movable upward with respect to the main body, and a rear end is rotatably supported on the rear end of the main body. a main body lid forming an air flow path from the suction port to the suction side of the electric blower, and a substantially cylindrical primary filter with an open top and bottom having an air intake port communicating with the suction port on the peripheral wall;
A filter device comprising a secondary filter located above the primary filter, a filter outer frame surrounding the outer peripheries of the primary and secondary filters, and connected to the air flow path and attached to the main body lid; A dust collecting box with an upwardly open shape removably attached to the lower open part of the primary filter, a pressing plate that partitions between the primary and secondary filters and is movable downward in contact with the inner surface of the same filter, and the pressing plate mentioned above. The device is equipped with a push button for moving the pressure plate downward, and a stop protrusion provided on the push button on the main body side to lock the downward movement position of the pressure plate. After collecting dust on the collection surface and transferring the dust by pressing the dust collection box with the pressure plate, the pressure plate stops at a position where it covers almost the entire surface of the dust collection surface, so the dust collection box can be removed from the main body. After the filter is removed, the dust collecting surface is hardly exposed to the outside, and even if a slight vibration is applied, the dust from the filter product does not fall to the floor surface, and the floor surface is not soiled, so that garbage can be disposed of cleanly.

Since the pressure plate is also used to prevent dust from falling, the structure can be simplified and it is advantageous in terms of cost. In addition, the dirty part of the dust collection surface is almost invisible from the outside, which eliminates the feeling of uncleanliness and prevents the user from damaging the dust collection surface of the primary filter when trying to clean it. Its industrial value is extremely great.

[Brief explanation of the drawing]

Figure 1 is a sectional view of the vacuum cleaner of the present invention, Figure 2 is a sectional view of the vacuum cleaner with the dust collection box and filter separated, and Figure 3 is a perspective view of the vacuum cleaner with the dust collection box removed. , Fig. 4 is a cutaway side view of the same essential parts, Fig. 5 is a sectional view of the interlocking part, Fig. 6 is a sectional view taken along line A-A in Fig. 2, Fig. 7 is a perspective view of the fine dust receiving part, The figures are a sectional view taken along the line B--B in FIG. 1, FIG. 9 is a partially exploded perspective view of the main body cover, and FIG. 10 is a partially sectional perspective view of the push button. 1... Body, 2... Electric blower, 12... Body lid, 16... Suction port, 17... Filter outer frame,
23... Secondary filter, 25... Primary filter, 31... Dust collection box, 38... Pressing plate, 57...
Intake port, 72...stop projection, 77...air flow path.

Claims (1)

[Claims] 1 A main body with a built-in electric blower, etc., and a rear end rotatably supported by the rear end of the main body, so that it can move upwards with respect to the main body, and the electric blower can be connected from the front suction port. A main body lid forming an air flow path leading to the suction side, a vertically open and substantially cylindrical primary filter having an air intake port communicating with the suction port on the peripheral wall, and a secondary filter located above the primary filter. , consisting of a filter outer frame that surrounds the outer peripheries of the primary and secondary filters, and a filter device that communicates with the air flow path and is attached to the main body lid, and a filter device that is detachably attached to the lower opening of the primary filter. a dust collection box that is open at the top; a press plate that partitions the primary and secondary filters and is movable downward in contact with the inner surface of the same filter; a push button that operates the press plate downward; and a press plate. A vacuum cleaner comprising a stop protrusion on the main body side provided on the push button to lock the downward movement position of the vacuum cleaner.