JPS5818090B2 - vacuum cleaner - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention allows a pressing device to slide inside a cylindrical dust trapping filter so that dust inside the filter can be disposed of hygienically and reliably without dirtying hands. This is about a vacuum cleaner.

An embodiment of the present invention will be described below based on the drawings.

In the figure, reference numeral 1 denotes a main body case in the shape of an abbreviated character, in which a cord reel 2 is installed in the front and an electric blower 3 is installed in the rear.

4 is a vent opening above the electric blower 3; 5 is a hose connection port; 6 is a vibration-proof packing that supports the electric blower 3 and communicates the electric blower 3 with the vent 4; its upper periphery is It protrudes upward from the vent 4.

7 is a dust collection container detachably connected to the upper part of the main body case 1, which has an opening 8 on the front, a bearing hole 9 on the rear, a handle 10 on the top,
The lower surface has a communication port 12 that communicates with the ventilation port 4 of the main body case 1 via the lever receiver 11 and the vibration-proof packing 6.

Reference numerals 13 and 14 are recesses formed on the rear surfaces of the main body case 1 and the dust collecting container 7, and form a space for storing a sliding frame of a suppression device to be described later.

Reference numeral 15 denotes a secondary filter for capturing fine dust, which has a corrugated cross section and a cylindrical shape, and a support hole 17 formed in the center of the rear end plate 16 fits into the outer peripheral surface of the bearing hole 9 of the dust collecting container 7. The front end plate 18 is attached such that an opening 19 formed along the waveform shape of the front end plate 18 is located within the opening 8 of the dust collecting container 7.

Reference numeral 20 denotes a non-ventilated flat part formed on the inner bottom of the secondary filter 15, and the flat part 2 is used for bonding and fixing when the secondary filter 15, which has been previously formed into a corrugated flat plate shape, is made into a cylindrical shape.
It is set to 0.

Reference numeral 21 denotes a cylindrical primary filter for capturing coarse dust, which is installed concentrically and rotatably inside the secondary filter 15, and has an opening 22 at the front end, and a threaded portion 23 on the outer peripheral surface and a guide hole on the inner surface at the rear end. It has a shaft part 25 having a 24-mm diameter, and a large number of through holes 2 covered from the inside with a net 26 on the circumferential surface between both ends.
7 is the formation.

28 is a pair of nodules formed in the longitudinal direction of the primary filter so as to face each other, and 29 is a shaft portion 25.
It is a blind part with no air permeability formed at the side end, and is formed to be equal to or longer than the length of a piston 41, which will be described later.

30 is an air vent hole formed in this blind part, and 31 is a dust remover installed on the outer peripheral surface of the primary filter 21 at appropriate intervals in the longitudinal direction, and is made of an elastic wire material, etc. An arcuate convex portion 32 is formed, and this convex portion successively repels the corrugated inner circumferential surface of the secondary filter 15 during rotation, thereby imparting vibration.

33 is a through hole into which the U-shaped portion 31a formed at the tip of the dust remover 31 is inserted and fixed; 34 is a holding cylinder into which the U-shaped portion 31b formed at the other end of the dust remover 31 is inserted and fixed; 35
are arcuate protrusions formed at appropriate intervals on the outer peripheral surface between the through hole 33 and the holding cylinder 34, and a concave groove 36 for retaining and holding the dust remover 31 is formed in the center thereof.

Reference numeral 37 denotes a stopper cap that is screwed onto the threaded portion 23 on the outer peripheral surface of the shaft portion 25 of the secondary filter 21 to attach the secondary filter 21 to the dust collection container 7, and 38 represents a cleaning device provided on the inner surface of the stopper cap. Use a broom to remove dirt and the like that has adhered to the surface of the piston sliding frame as it slides to keep it clean (7).

Reference numeral 39 denotes a through hole formed in the stopper cap 37, and 40 denotes a pressing device, which has a front pressing portion 41a having an outer shape that is approximately the same as the inner surface shape of the primary filter 21, and a through hole formed in the guide hole 24 of the primary filter 21 and the stopper cap 37. The piston 4 has a tapered shape between it and the rear connecting shaft 41b that projects outward through the hole 39, and has a recess 42 formed inside the piston 4.
1, and one end is attached to the connecting shaft 41b of this piston with a set screw 4.
3, and a sliding frame 45 having a grip portion 44 at the other end, and when not in use, the sliding frame 45 is bent into an L-shape to prevent the main body case 1 and the dust collection container 7 from being connected. It is stored across recesses 13 and 14 formed at the rear.

A protruding part 41C that protrudes further forward is formed on the peripheral edge of the suppressing part 41a of the piston 41, and by the action of this protruding part, dust clinging to the inner circumferential surface of the primary filter 21 is separated in advance and pushed out. We ensure that this is carried out in a good manner.

In addition, a protrusion 41d is formed on the connecting shaft 41b of the piston 41 at the joint with the sliding frame 45, and the sliding frame 45 is connected to the connecting shaft 41b so that the sliding frame 45 can be bent only in one direction, making it easy to perform a suppressing operation. That's what I do.

Further, the grip portion 44 of the sliding frame 45 has an annular shape to prevent the hand from hitting the rear wall of the dust collection container 7, etc. when the grip portion 44 is pressed.

Reference numeral 46 denotes a lid that simultaneously closes the openings 8, 19 and 22 of the dust collecting container 7, the primary filter 15, and the secondary filter 21, and has a dust suction port 47 approximately in its center.

48 is a check valve provided at this suction port, and 49 is a receiving portion that fits into the opening 22 of the primary filter 21 and supports its end horizontally.

Note that the end of the primary filter 21 on the opening 22 side is located more inward than the end of the secondary filter 15 on the opening 19 side, thereby making it easier to assemble the lid 45.

50 is a knob formed on the lid 16, 51 is a gasket fitted on the periphery of the lid 46, and 52 is a locking lever that is biased and supported in the horizontal direction by a compression spring 53 in the main body case 1. The dust collection container 7 is coupled to the upper surface of the main body case 1 by engaging with a lever receiver 11 protruding from the lower surface.

Reference numeral 54 denotes a recess into which the lever receiver 11 of the dust collecting container 7 is fitted, and is located approximately at the center of the upper surface of the main body case 1, and the tip of the locking lever 53 projects into this recess. .

55 is a rear cover, the lower part of which is attached to the rear bottom of the main body case 1 with a support shaft 5.
6, the upper part engages with the rear part of the dust collecting container 7 and covers the housing portion of the pressing device 40.

57 is an exhaust outlet formed in the rear lid 55, 58 is a cord outlet, and 59 is a safety valve located inside the handle 10, in case either the primary or secondary filter 2L15 becomes clogged. It opens to let outside air in and protect the electric blower.

Reference numeral 60 denotes a release lever for releasing the engagement between the locking lever 53 of the main body case 1 and the lever receiver 11 of the dust collection container 7, and is constantly biased in a predetermined direction by a compression spring 61.

62 is an operation button for the release lever 60.

In the above configuration, first, in order to attach the dust remover 31 made of an elastic wire or the like to the outer peripheral surface of the primary filter 21, the U-shaped portion 31a formed at one end is attached to the primary filter 21.
If the U-shaped portion 31b formed at the other end is inserted into the through hole 33 formed at the end on the side of the opening 22 of 1 and then pushed into the insertion tube portion 34 formed on the opposite side, it can be attached by its elasticity.

When installing a dust capture filter in the dust collection container 7, first store the secondary filter 15 in the dust collection container 7, then store the primary filter 21, and then
A stopper cap 37 is screwed onto the rear end threaded portion 23 from the outside of the primary filter 21 and fixed.

Next, the piston 41 placed in the primary filter 21 and the sliding frame 45 are coupled together with a set screw 43 on the outside of the primary filter 21 as well.

After that, the lid 46 is attached to the opening 8 of the dust collecting container 7 to complete the assembly, and all that is left to do is to connect it to the main body case 1.

In the electric sweeper having the above configuration, the electric blower 3
When driven, air containing dust passes through a dust suction hose (not shown) and is sucked into the dust collection container 7 from the suction port 47 of the lid 46, and large dust is first captured by the primary filter 21. Small dust particles are captured and separated by the secondary filter 15, and only clean air passes through the electric blower 3 and is released to the outside from the exhaust outlet 57 of the rear lid 55 provided at the rear of the main body case 1.

Next, when removing the dust collected in each filter 15.21, press the operation button 62, the release lever 50 moves downward against the pressing force of the compression spring 51, and the locking lever 52 is compressed. Since it is moved forward against the spring 53, the engagement between the locking lever 52 and the lever receiver 11 is released, and the dust collection container 7 can be separated from the main body case 1.

At this time, since the fulcrum of the rear lid 55 is at the bottom, the handle 10
The support at the rear of the dust collecting container 7 is automatically released by simply lifting the front part of the dust collecting container 7 slightly.

Thereafter, once the dust collecting container 7 is separated from the main body case 1, the lid 46 that closes the openings 8, 19, 22 of the dust collecting container 7 and each filter 15°21 is removed, and the opening 8 of the container 7 is removed. Aim the set screw 43 toward a trash can, etc., and hold the set screw 43 so that the piston 41 and the sliding frame 45 are in a straight line.
When the sliding frame 45 is rotated about the axis and then pushed in with the grip portion 44 at the other end of the sliding frame 45, the piston 42 is guided inside the primary filter 21 by the pair of rails 28 and moves inside the filter 21. It slides toward the opening 22 while contacting the peripheral surface, and all the coarse dust inside is pushed out from the opening 22, without touching the dust at all, and moreover, the secondary filter 1
Regardless of the fine dust captured in step 5, it can be thrown away in a trash can, etc.

On the other hand, when removing fine dust adhering to the corrugated inner peripheral surface of the secondary filter, when the grip part 44 of the sliding frame 45 is rotated, the piston 41 is also rotated at the same time, and a part of the piston 41 is rotated. Since the pair of rails 28 formed on the inner circumferential surface of the primary filter 21 are in an engaging relationship, this serves as a rotation stopper, and the primary filter 21 also rotates together with the piston 41.

For this reason, the dust remover 3 provided on the outer periphery of the primary filter 21
1 sequentially flicks the corrugated inner circumferential surface of the secondary filter 15 to give vibration, and fine dust is dropped into the space formed between the outer circumferential surface of the primary filter 21 and the inner circumferential surface of the secondary filter 15. Q,000 trash cans, etc. can be dropped through the opening 8 of the dust collection container 7.

Therefore, by operating the pressing device 40, the dust collected in both filters 15 and 21 can be removed to the outside of the dust collection container 7 without touching them at all, and the dust collected in the secondary filters can be removed. There is no need to provide a separate dust removal device.

As described above, the present invention includes a main body case in which an electric blower is housed, a dust collection container that is connected to the main body case and detachably connected thereto, and a cylindrical dust capturing filter that is installed inside the dust collection container. The dust capturing filter is composed of a primary filter that captures coarse dust and a secondary filter that captures fine dust, and the secondary filter is rotatably placed inside and concentrically inside the dust collection container. The primary filter has a pressing function that slides inside the filter to press coarse dust, and a dust removal function that rotates the primary filter to apply a dust removal action to the secondary filter. Since it is equipped with a device, by simply operating the pressing device, it is possible to remove not only the coarse dust captured in the primary filter, but also the fine dust captured in the secondary filter. This allows for simple and extremely hygienic dust disposal.

[Brief explanation of the drawing]

Fig. 1 is a partially sectional side view of an embodiment of the vacuum cleaner according to the present invention, Fig. 2 is a perspective view of the main body case and the dust collection container separated, and Fig. 3 is the state in which the dust is being disposed of. Figure 4 is a perspective view of the secondary filter for fine dust capture, Figure 5 is a side view of the primary filter for coarse dust capture, and Figure 6 is a cross-sectional view of the dust collection container part.
The figure is a sectional view taken along the line ■--■, FIGS. 7 and 8 are enlarged sectional views of essential parts of the primary filter, and FIG. 9 is an exploded perspective view of the suppression device. 1 is the main body case, 3 is the electric blower, 7 is the dust collection container, 15
21 is a secondary filter, 21 is a primary filter, 26 is a net, 27 is a through hole, 31 is a dust remover, 32 is a convex portion, 40 is a pressing device, 41 is a piston, and 45 is a sliding rod.

Claims (1)

[Claims] 1. A main body case with an electric blower inside, a dust collection container connected to the main case and detachably connected thereto, and a cylindrical dust capture filter built into the dust collection container,
The dust capturing filter is composed of a primary filter that captures coarse dust and a secondary filter that captures fine dust, and the secondary filter is rotatably placed inside and concentrically installed in the dust collection container. , the secondary filter is provided with a suppression device having a pressing function that expands within the filter to press coarse dust, and a dust removal function that rotates the primary filter to apply a dust removal action to the secondary filter. A vacuum cleaner characterized by: