JPS5822690Y2 - vacuum cleaner - Google Patents

Description

[Detailed explanation of the invention] This invention accumulates and stores the inhaled garbage in a garbage storage bag,
This vacuum cleaner allows collected garbage to be easily and hygienically disposed of by taking out the garbage storage bag from the main body and disposing of it together with the garbage inside. A plurality of reinforcing ribs are integrally provided on the cylindrical wall of the filter cover to be attached, thereby reinforcing the filter cover and also reducing the positioning cost when attaching the bag attachment frame to the filter cover.

Embodiments of the present invention shown in the drawings will be described in detail below.

Reference numeral 1 denotes a vacuum cleaner main body consisting of a main body front case 2 and a main body rear case 3. Both cases 2 and 3 are separably connected by a lower retaining means 4 and an upper clamp mechanism 5.

The clamp mechanism 5 is interposed between a handle 6 fixed to the upper part of the front case 2 of the main body and the upper part of the rear case 3 of the main body.

The main body front case 2 has an open rear surface, and has a suction lower at the upper front surface to which a suction port assembly (not shown) is connected, and a connecting pipe 9 is connected to the inner end of the suction lower through a gasket 8 in an airtight manner. Connect to state.

The free end of this connecting pipe 9 is formed with a step and a small diameter as shown in the figure.

In addition, the main body rear case 3 has an intake port 11 on its front wall 10.
Exhaust ports 12 are formed on the back surface, and a blower 13 is supported inside with a suction side facing the intake port 11 via a vibration isolating rubber 14.

The exhaust flow from the blower 13 is then discharged to the outside of the cleaner body 1 through the exhaust port 12.

15 is a codeknoll built into the bottom of the rear case 3 of the main body,
Reference numeral 16 indicates a traveling wheel made of a swivel wheel provided on the front case 2 of the main body, and reference numeral 17 indicates a traveling wheel provided on the rear case 3 of the main body.

Reference numeral 18 denotes a filter cover that closes the rear opening of the main body front case 2. The filter cover 18 is fitted and held in an airtight closed state by a gasket 19 attached to the outer periphery of the filter cover. It also helps maintain airtightness between the side cases 2 and 3 by coming into close contact with the front wall 10.

The filter cover 18 has an opening 20 in its lower half, and is molded from synthetic resin in such a shape that a space 21 is formed between the front and rear cases 2 and 3 when the front and rear cases 2 and 3 are combined. The opening 20 is connected to the air intake port 11 using the space 21.
communicate with.

Further, the filter cover 18 is integrally formed with a cylindrical bearing 22 at the center of the opening 29 via a plurality of arms.

Reference numeral 23 denotes a handle fixed to the filter cover 18 above the space 21, and is used for carrying a filter assembly assembled around the filter cover 18.

Reference numeral 24 designates a plurality of brush holding pieces integrally formed with the filter cover 18, which detachably hold brushes (not shown) used for cleaning the filter, which will be described later, and store the brushes in the space 21. .

Reference numeral 25 denotes a rib formed integrally with the lower part of the filter cover 18, which engages with the lower end of a rib 26 integrally protruding from the front wall 10 of the rear case 3 of the main body when the front and rear cases 2 and 3 of the main body are combined.

When the vacuum cleaner main body 1 falls due to the engagement of both ribs 25 and 26, an impact force is applied to the main body 1, and the front of the main body
This prevents impact force from being applied to the clamp mechanism 5 that maintains the connected state of the rear cases 2 and 3.

This prevents the clamp mechanism 5 from being damaged by the impact force.

Reference numeral 27 designates a cylindrical main filter in which a filter surface is formed of filter paper in a circumferential wall having a chevron-shaped wave shape in the circumferential direction, and one end is closed with a blind wall, and the other end has a peripheral flange on the open surface. is attached to the periphery of the opening 20 on the front surface of the filter cover 18 via a gasket 28, and the inside of the main filter 27 has an opening 20, a space 21. It communicates with the suction side of the blower 13 via the intake port 11 .

The main filter 27 has a blind wall closing one end face and a peripheral flange part on the other end face molded from synthetic resin, and at least a dust remover (described later) collides with each section on the outer periphery of the peripheral wall forming a chevron-shaped wave shape. An abutment edge 29 made of synthetic resin is formed at the portion where the contact edge 29 is made of synthetic resin.

This contact edge 29 transmits the vibration caused by the collision of the dust remover to the peripheral wall, which is the filter surface, and at the same time protects the peripheral wall made of filter paper from wear and tear caused by the collision of the dust remover.

Reference numeral 30 denotes a filter shaft that is rotatably inserted and supported through a bearing 22 of the filter cover 18 and a bearing 31 formed at the center of a blind wall of the main filter 27. A dust dropper is provided at the end that penetrates the bearing 22 and projects into the space 21. Fix the operation handle 32 for use.

The operating handle 32 has a cylindrical portion fitted into the bearing 22 and fixed to the filter shaft 30.

Further, a guard ring 34 is integrally formed on the outer peripheral edge of the operating handle 32 via an arm 33, and this guard ring 34 prevents a fingertip from entering the inside of the main filter 27 when operating the operating handle 32.

35 is a cylindrical pre-filter that surrounds the outer periphery of the main filter 27.

This pre-filter 35 has a plurality of arms 3, for example, four arms 3.
6, the integrally molded bearing 37 is inserted into the tip of the filter shaft 30 through which the bearing 31 is inserted in a non-rotatable state,
It is fixed with a set screw 38 that is screwed into the threaded portion at this tip.

Thus, this prefilter 35 rotates as the filter shaft 30 rotates.

Note that 39 indicates a gasket interposed between the bearings 31 and 37.

Further, the peripheral wall of the pre-filter 35 is formed such that the portion facing the peripheral wall of the main filter 27, that is, the filter surface, is formed as a filter surface, and the remaining portion not facing the peripheral wall is formed as a blind wall.

The pre-filter 35 has its rear end opening surface closed by the filter cover 18 and its front end opening surface closed by the inner surface of the front wall of the main body front case 2.

Reference numeral 40 denotes an annular packing that is positioned and attached to the inner surface of the front wall of the main body front case 2 by an annular rib 41 formed on the inner surface, and the front opening edge of the pre-filter 35 abuts in an airtight state.

The annular packing 40 and the pre-filter 35 are brought into contact with each other in an airtight manner, and the pre-filter 35 is set to rotate smoothly.

Further, it is desirable to use a material with low frictional resistance as the material for the annular packing 40.

Reference numeral 42 denotes a dust remover made of a coil spring whose one end is fixed to the filter shaft 30. As the filter shaft 30 rotates, the dust remover 42 successively collides with the contact edge 29 on the inner circumference of the main filter 27, causing vibration to the main filter 27. give.

Reference numerals 43 and 43 denote a pair of dust removers fixed to the arms 36 and 36 of the pre-filter 35 in substantially opposite positions, and as the pre-filter 35 rotates, they successively collide with the contact edge 29 on the outer periphery of the main filter 27. Main filter 2
Give vibration to 7.

The dust removers 42 and 43 are located at different positions with respect to the axial direction of the main filter 27, and are configured so that the vibrations imparted by the dust removers 42 and 43 are distributed to each part of the main filter 27.

The dust remover 43 is made of a spring wire material, and has one end fixed to the arm 36 and the other end inserted into a through hole 44 formed in the arm 36 so as to be opposed to the contact edge 29.

The middle part of this dust remover 43 is largely curved to form a buffer part 43a, which copes with the force applied to the fixed part of the dust remover 43 when the dust remover 43 bends, and prevents breakage due to long-term use. do.

Further, the dust removers 43, 43 are provided so as not to collide with the contact edge 29 of the main filter 27 at the same time as the pre-filter 35 rotates.

That is, in this embodiment, the arms 36° 36 to which the dust removers 43, 43 are fixed are provided with an appropriate angle between their respective axes as shown in FIG. It is laterally opened so that it alternately collides with the collision edge 29 as it rotates.

With this configuration, the force required to rotate the operating handle 32 is reduced.

Reference numeral 45 denotes a cylindrical wall integrally protruding from the front surface of the filter cover 18 so as to surround the outer periphery of the pre-filter 35 at appropriate intervals, and the amount of forward protrusion H is set to gradually decrease as it goes downward. A plurality of reinforcing ribs 45a for reinforcing this cylindrical wall are integrally molded at appropriate intervals on the side wall surface, and from the tip of the cylindrical wall 45, as shown in FIG. In order to fit a bag attachment frame 47 for attaching a storage bag to the cylindrical wall 45, it is provided in a protruding manner at a distance apart.

By providing this spacing, the bag attachment frame 47 functions to be positioned so that it can be easily fitted and attached to the outer periphery of the cylindrical wall 45.

Further, the center of this cylindrical wall 45 is unevenly located from the center of the pre-filter 35, that is, from the filter shaft 30, and the center of the cylindrical wall 45 is
The width of the gap between the cylindrical wall 45 and the cylindrical wall 45 is set to be different at each part of the entire circumference.

By varying the amount of protrusion of the cylindrical wall 45 and the width of the gap, dirt caught and remaining between the pre-filter 35 and the cylindrical wall 45 during cleaning can easily fall off as the pre-filter 35 rotates. become.

Reference numeral 46 denotes a flexible and non-ventilated garbage storage bag, which is attached to the outer periphery of the cylindrical wall 45 using a bag attachment frame 47 so as to cover the pre-filter 35.

Such a garbage storage bag 46 is made of synthetic resin, for example, and a commercially available bag is used.

The bag attachment frame 47 is formed of synthetic resin into an annular shape, and is removably fitted to the outer periphery of the cylindrical wall 45.

Moreover, the bag attachment frame 47 is provided with two bands 48, 48 and one clamp 49 at an interval of 120°.

The band 48, 48 is integrally molded with the bag attachment frame 47 from a soft resin, and has a fixing hole (not shown) at the free end and an engaging hole (not shown) spaced apart from the base.

A stopper 52 is fitted and fixed in the fixing hole (not shown), and the tip of the stopper 52 is engaged with and disengaged from the engagement hole (not shown) by bending the band 48.

Further, the clamp 49 is rotatably supported by a shaft protruding from bearings 53, 53 formed integrally with the bag mounting frame 47, and the bag mounting frame 47 is fitted into the cylindrical wall 45. In this state, the bag attachment frame 47 is prevented from falling off by engaging with a protrusion 55 protruding from the filter cover 18.

Thus, the opening of the garbage storage bag 46 is detachably fixed to the bag attachment frame 47.

That is, with the opening side of the garbage storage bag 46 placed inside the bag attachment frame 47, the opening of the garbage storage bag 46 is folded back to the outside so as to wrap around the bag attachment frame 47, and then The garbage storage bag 46 is fixed to the bag attachment frame 47 by pushing a portion of the garbage storage bag 46 into the engagement hole (not shown) at the tip of the stopper 52 .

Then, when the bag attachment frame 47 to which the garbage storage bag 46 is fixed is fitted to the outer periphery of the cylindrical wall 45, the garbage storage bag 46
is interposed between the bag attachment frame 47 of the cylindrical wall 45, and the cylindrical wall 45
be installed in an airtight manner.

Reference numeral 56 denotes an elbow formed in the filter cover 18, which is connected to the connecting pipe 9 while the filter cover 18 is fitted to the front case 2 of the main body, and the dust-collecting airflow from the suction lower is passed through the pre-filter 35 and the dust storage bag 46. I will guide you in between.

The rear end of the elbow 56 is opened in the upper part of the cylindrical wall 45 and in the tangential direction of the prefilter 35.
The dust-collecting airflow from the pre-filter 35 is circulated around the pre-filter 35 to produce a cyclone effect.

Further, a cylindrical packing 57 is fitted to the front end of the elbow 56, and the connecting pipe 9 and the elbow 56 are connected by the packing 57.
Connect in an airtight manner.

The cylindrical packing 57 is a check valve 5 made up of a plurality of tongue pieces.
8 are integrally molded, and a passage is normally opened by a check valve 58.

The check valve 58 is opened by the small diameter portion of the connecting pipe 9 inserted into the cylindrical packing 57.

59 is the filter cover 18 on the outside of the cylindrical wall 45.
This is a ventilation cylinder formed in the main body front case 2, which communicates a space 60 created outside the garbage storage bag 46 with the suction side of the blower 13.

Reference numerals 61 and 62 indicate auxiliary filters that are removably housed in the ventilation cylinder 59.

Reference numeral 63 denotes an on-off valve that is pivotally supported in the space 60 to open and close the ventilation cylinder 59, and is always biased in the closing direction by a spring.

Further, when the opening/closing valve 63 is closed, a gasket 64 is glued to ensure that the ventilation cylinder 59 is closed.

Reference numeral 65 denotes a lever connected to the on-off valve 63 and close to the cylindrical wall 45. The lever 65 is pressed and operated by the bag mounting frame 47 that fits on the cylindrical wall 45, and when operated, the on-off valve 63 is held in place by a spring. Resist and release.

Next, its effect will be explained.

First, the open side of the garbage storage bag 46 is placed inside the bag attachment frame 47, and then folded back to the outside so as to wrap around the bag attachment frame 47, and engaged to push in a part of the folded portion of the garbage storage bag 46. engaging a stop 52 in a hole (not shown);
The opening of the garbage storage bag 46 is fixed to the bag attachment frame 47.

Then, the bag attachment frame 47 to which the garbage storage bag 46 is fixed is fitted to the outer periphery of the cylindrical wall 45 of the filter cover 18, and the clamp 49 is engaged with the protrusion 55, so that the bag attachment frame 47 is in the fitted state. is maintained securely, and a garbage storage bag 46 is attached to cover the prefilter 35.

Furthermore, by fitting the bag attachment frame 47 into a predetermined position, the on-off valve 63 is pressed via the lever 65, and the communication tube 5
Open 9.

Therefore, the filter cover 18 equipped with the garbage storage bag 46
is fitted into the rear end opening surface of the main body front case 2 in an airtight state.

Then, at the same time as this fitting, the small diameter part of the connecting pipe 9 is inserted into the cylindrical packing 57 to open the check valve 58, and the elbow 56 is connected to the connecting pipe 9 through the cylindrical packing 57 in an airtight state. do.

Then, the preparation for the cleaning work is completed by joining the main body rear case 3 to the main body front case 2 with the filter cover 18 set in a predetermined position as described above.

Next, the suction port assembly is connected to the suction lower and the blower 13 is driven to start cleaning work.

When this blower 13 starts to drive, the internal space of the garbage storage bag 46 which communicates with the suction side of the blower 13 via the main filter 27 and pre-filter 35 and the ventilation cylinder 59
A pressure difference is created between the dust storage bag 46 and the external space 60 which communicates with the suction side of the blower 13 through the auxiliary filters 62,61 inside.

In other words, main filter 27 and prefilter 3
Since the air blowing resistance due to the auxiliary filters 61 and 62 is larger than the air blowing resistance due to the auxiliary filters 61 and 62, the vacuum pressure P1 in the internal space of the garbage storage bag 46 is lower than the vacuum pressure P2 in the external space 60, and the relationship between the vacuum pressures in the same space is as follows. P1<P2.

As a result, the garbage storage bag 46 is pulled toward the space 60,
This will swell, making it easier to collect and store garbage, which will be described later.

Of course, the higher the degree of clogging of the main filter 27, the greater the pressure difference, and the more the dirt storage bag 46 swells.

The dust-collecting airflow from the suction port assembly passes through the elbow 56 and enters the cylindrical wall 45, and then passes through the pre-filter 35 and the main filter 27 in order to be filtered, becoming clean air and exiting the opening. 20. Space 21. Inlet port 11, blower 13
, and is discharged outward again from the exhaust port 12.

The coarse dust in the dust-collecting airflow is removed by the pre-filter 35.
The fine dust is collected by the main filter 27, respectively.

Note that during the above-mentioned cleaning operation, if there is a hole in the garbage storage bag 46 and garbage leaks into the space 60, that garbage will be collected by the auxiliary filters 61 and 62.
It does not enter the blower 13.

The garbage collected during cleaning will be disposed of as follows.

First, the front and rear cases 2 and 3 of the main body are separated, the filter cover 18 is taken out, and the garbage storage bag 46 is positioned below.

Then, the outer periphery of the pre-filter 35 and both filters 2
The garbage between 7.35 and 35 falls and is stored in the garbage storage bag 46.

In addition, when removing the filter cover 18, the garbage storage bag 4
Although there is a risk that the clamp 6 will separate from the cylindrical wall 45 due to the weight of the dust, such a risk is eliminated by the engagement between the clamp 49 and the protrusion 55.

Furthermore, even if dirt remains inside the elbow 56, the check valve 58 prevents the dirt from being scattered into the room.

Next, by rotating the operating handle 32, the main filter 27 is vibrated by the dust removers 42, 43, and fine dust adhering to the filter 27 is removed.

The fine dust separated from the main filter 27 falls and is stored in the dust storage bag 46 through the front end opening surface of the pre-filter 35.

By removing the bag attachment frame 47 from the filter cover 18 and further removing the garbage storage bag 46 from the bag attachment frame 47, the garbage storage bag 46 can be disposed of with garbage stored inside.

Further, in the above-mentioned vacuum cleaner of the present invention, cleaning work can be performed without using the garbage storage bag 46.

This will be explained below.

When the garbage storage bag 46 is not used, the bag attachment frame 47 is removed and the ventilation cylinder 59 is kept closed at all times by the on-off valve 63.

During cleaning, the dust-collecting airflow from the elbow 56 enters the main body front case 2, is filtered by the pre-filter 35 and the main filter 27 as described above, becomes clean air, and is discharged outward from the exhaust port 12. will be done.

Then, the bris filter 35 and the main filter 27
The collected garbage is accumulated in the front case 2 of the main body,
The case 2 becomes a garbage storage case.

The collected garbage in such use is disposed of by separating the main body front case 2 from the main body rear case 3, carrying it to a disposal position, and removing the filter cover 18 at that position.

Further, by removing dust from the main filter 27 while the filter cover 18 remains fitted to the main body front case 2, fine dust will not be scattered outward.

As explained above, the present invention has a filter cover equipped with a filter removably installed inside the vacuum cleaner body, and a flexible and non-breathable dust cover to cover the filter. A storage bag is provided, and the inside of this garbage storage bag is communicated with the suction side of the blower through the filter, and the dust-collecting airflow by the blower is guided between the garbage storage bag and the filter, and the garbage is placed in the garbage storage bag. A cylindrical main filter for storage and storage, the peripheral wall of which is the filter surface is formed of filter paper in a chevron wave shape in the circumferential direction, and one end surface is closed by a blind wall; In a vacuum cleaner that is removably provided with a filter cover equipped with a cylindrical pre-filter that surrounds the outer periphery of a main filter, a bag attachment frame for attaching the garbage storage bag is fitted to the outer periphery.

On the front surface of the filter cover, the filters 1)' are integrally protruded so as to surround the outer periphery of the filter at appropriate intervals, and the amount of forward protrusion is set to gradually decrease as it goes downward. Since multiple reinforcing ribs are integrally provided on the side wall surface of the cylindrical wall, it is extremely easy to position the bag mounting frame for attaching the garbage storage bag to the filter cover by using the upper tip of the reinforcing ribs. The bag mounting frame can be installed in the specified position, and
It has a high practical value as it functions as a reinforcing rib for the filter cover.

[Brief explanation of drawings]

Fig. 1 is a schematic sectional view of the vacuum cleaner main body showing an embodiment of the present invention, Fig. 2 is a sectional view taken along line AA' in Fig. 1, Fig. 3 is a sectional view taken along line BB' in Fig. 1, and Fig. 4 is a sectional view taken along line AA' in Fig. Figure a is a sectional view of the on-off valve when the bag mounting frame is not attached to the filter cover, Figure 4 is a sectional view of the on-off valve when the bag attachment frame is attached to the filter cover, and Figure 5 is the filter cover of the present invention. A perspective view of
FIG. 6 is a perspective view showing an example of how the bag is attached to the filter cover of the present invention, in which 1 is the vacuum cleaner body, 13 is the blower, 18 is the filter cover, 27 is the main filter, 30 is the filter shaft, 35 is a prefilter, 45
is a cylindrical wall, 45a is a reinforcing rib, 46 is a garbage storage bag, 4
7 is a bag mounting frame.

Claims (1)

[Scope of utility model registration request] A filter cover with a filter is removably installed inside the vacuum cleaner body, and a flexible and non-ventilated garbage storage bag is provided on the filter cover to cover the filter. The inside of the bag is communicated with the suction side of the blower through the filter, and the dust-collecting airflow by the blower is guided between the dust storage bag and the filter, and the dust is accumulated and stored in the dust storage bag, and the dust is accumulated and stored in the dust storage bag. A cylindrical main filter whose peripheral wall, which is the filter surface, is formed of filter paper in a chevron wave shape in the circumferential direction and whose one end face is closed by a blind wall, and a cylinder surrounding the outer periphery of this main filter. In a vacuum cleaner having a removably installed filter cover equipped with a pre-filter, the outer periphery of the pre-filter is attached to the front surface of the filter cover, into which the bag mounting frame for attaching the garbage storage bag is fitted. A plurality of reinforcing ribs are integrally provided on the side wall surface of the cylindrical wall, which is integrally protruded so as to surround the cylindrical wall at appropriate intervals, and the amount of forward protrusion is set to gradually decrease as it goes downward. A vacuum cleaner characterized by being provided with.