JPS6316375Y2 - - Google Patents

Description

[Detailed description of the invention] (a) Industrial application field The present invention relates to a vacuum cleaner that can also be used with a disposable paper bag filter.

(b) Prior art Conventionally, a flat-style vacuum cleaner with a low center of gravity that uses a paper bag filter
It is disclosed in Publication No. 141178. This vacuum cleaner is
A top-opening dust collection chamber with an air intake hole is provided at the front of the vacuum cleaner body with a built-in electric blower at the rear, and a support frame holding a paper bag filter is removably provided in the dust collection chamber. The top opening of the chamber is closed by a lid.

Since an annular gasket is interposed between the intake hole of the dust collection chamber and the intake port of the support frame, airtightness is maintained. Since the mounts were in direct contact with each other, sufficient airtightness could not be maintained, and there was a problem in that suction power was reduced due to air leakage.

(C) Purpose of the invention The purpose of this invention is to keep the hose connection port of the vacuum cleaner body, the air intake port of the dust collection box, and the mount of the paper bag filter airtight using the air intake gasket provided on the air intake port. do.

(d) Structure of the invention As shown in FIGS. 1 to 7, the structure of the vacuum cleaner of the invention is a vacuum cleaner body 1 having a built-in electric blower 2 at the rear and a hose connection port 3 at the front. In the case where a dust box storage chamber 4 is formed and a dust collection box 12 having a built-in paper bag filter 24 is removably installed in the storage chamber 4, an air intake port 15 of the dust collection box 12 facing the hose connection port 3 is provided. is equipped with an inlet gasket 14 made of an elastic member, and the inlet gasket 14 has an annular fin portion 29 facing outward that comes into contact with the peripheral edge of the hose connection port 3 on one side, and a paper bag filter on the other side. The present invention is characterized in that an outward annular fin portion 30 and an inward annular fin portion 31 are respectively formed to abut against the 24 mounts 25.

With this configuration, the peripheral edge of the hose connection port 3 contacts the outward annular fin 29 on one side of the intake port gasket 14, and the mount 25 of the paper bag filter 24 contacts the outward facing annular fin 29 on the other side of the suction port gasket 14. It contacts the annular fin portion 30 and the inward annular fin portion 31 doubly to form a double seal.

(E) Embodiments The structure of the present invention will be specifically described below with reference to FIGS. 1 to 7.

Reference numeral 1 denotes a vacuum cleaner body which has an electric blower 2 built in at the rear and a dust collection box storage chamber 4 with an open top surface and a hose connection port 3 at the front, and a pair of rear wheels 5 on both sides of the rear of the body. , 5, and a swivel front wheel 6 is attached to the front bottom surface. The vacuum cleaner main body 1 is composed of a main body F case 7 in the shape of a boat bottom and a main main body upper case 8 located at the rear of the lower case. It is held between the two cases 7 and 8. Reference numeral 11 is a bumper-cum-seal gasket attached along the opening edge of the lower case 7 to maintain airtightness with the upper case 8.

Reference numeral 12 denotes a dust collection box installed in the dust collection box storage chamber 4 so that it can be inserted into and removed from the dust collection box 4. On the front wall 13 of the dust collection box, there is an air intake which is a resilient rubber molded product and is located opposite to the hose connection port 3. A rear wall 1 that forms an intake port 15 with a mouth seal 14 attached thereto and faces oppositely to the intake port 15.
6 is integrally formed with a net-shaped primary filter 17, and furthermore, a secondary filter 19 made of filter paper and equipped with a slidable dust removal means 18 on both sides of the back of the primary filter 17 is detachably attached via a filter packing 20. It is installed.

Reference numeral 21 denotes an annular sealing packing for the dust collecting box attached along the upper opening of the dust collecting box 12, and the sealing packing for the dust collecting box is attached to the sealing packing for the dust collecting box 4 and the dust collecting box in contact with the sealing packing 11 which also serves as a bumper. A fin piece 22 that maintains airtightness between the dust collecting box 12 and a handle part 23 for taking out the dust collecting box 12 are integrally formed. Reference numeral 24 denotes a disposable paper bag filter provided in the dust collection box 12, and a mount 25 of the filter is attached to the air inlet 1 by means of a rib-shaped lower protrusion 26 provided near the air inlet 15 and an upper clamp 28 biased by a spring 27.
It is detachably attached in close contact with the intake port gasket 14 of No. 5.

The intake port gasket 14 has an annular fin portion 29 that is curved toward the outside and comes into contact with the peripheral edge of the hose connection port 3 on one side, and an annular fin portion that is curved toward the outside and comes into contact with the mount 25 of the paper bag filter 24 on the other side. 30 and an inwardly directed annular fin portion 31, and furthermore, a check valve 32 is integrally formed in the central portion.

Reference numeral 33 denotes a lid body that freely opens and closes the upper openings of the dust collection box storage chamber 4 and the dust collection box 12, and the lid body is composed of a double wall of an outer plate 33a and a transparent or translucent inner plate 33b. The interior space is opened from the rear by the lid piece 3.
3c forms a preliminary storage chamber 34 for a paper bag filter 24 that can be opened and closed. Outer plate 33 of the lid body 33
a The rear end is formed with two protrusions 37, 37 that engage with a pair of engagement recesses 36, 36 provided with the front end stepped portion 35 of the main body upper case 8, and the front part is formed with two protrusions 37, 37 that engage with a pair of engaging recesses 36, 36 provided with the front end stepped portion 35 of the main body upper case 8. A clamp means 39 that engages and disengages from the clamp holding protrusion 38 is provided.

In front of the clamping means 39, there is provided a lid side handle part 42 which is integrated with the lid 33 and which is combined with a main body handle part 40 formed to protrude from the main body lower case 7 to form a transportation handle 41. A pair of left and right lid opening/closing assist mechanisms 43, 43 for urging the lid 33 upward is provided between the portion 40 and the lid side handle portion 42.

The lid opening/closing assisting mechanism 43 includes a hollow boss portion 45 having a step portion 44 projecting upward from the main body side handle portion 40 of the main body lower case 7, and a concentric inner cylinder 46 that slides inside and outside of the boss portion. A bottomed spring cap body 48 is integrally formed with an outer cylinder 47 and a lower end engages with a stepped part 44 of a hollow boss part 45 to form an inner cylinder 4.
6 and the outer cylinder 47, and pushes up the bottomed spring cap body 48.
9 and a screw 50 to the inner cylinder 46 of the cap body 48.
The bottomed spring cap body 4 is fixed by
8 to the hollow boss portion 45 in a slidable manner.
It is composed of.

In the above configuration, when discarding dust after cleaning, when the clamping means 39 is pushed, the engagement with the clamp holding protrusion 38 of the lower case 7 is released, and the lid 33 is opened and closed by the lid opening/closing assist mechanism 43, It is pushed upward by springs 49, 49 of 43. As a result, there is a gap between the main body handle part 40 and the lid handle part 42, so insert your finger into the lid handle part 42 and move the lid 3 from the vacuum cleaner main body 1.
3 can be easily removed. After that, hold the handle part 23 from the dust collection box storage chamber 4 of the vacuum cleaner body 1 and hold the dust collection box 1.
If you take out the paper bag filter 24 and throw it into the trash can, you can dispose of dust without getting your hands dirty.

When the garbage disposal is completed, the paper bag filter 24 is set in the dust collection box 12 and stored in the dust collection box storage chamber 4 of the vacuum cleaner body 1, and then the protrusions 37, 37 of the lid body 33 are removed.
When inserted into the engaging recesses 36, 36 of the main body upper case 8 and pressing the lid side handle part 42, the clamping means 39 is moved to the clamp engaging protrusion 38 of the main body F case 7.
This completes the installation of the lid 33 and makes cleaning possible again. Of course, even if the paper bag filter 24 breaks, the dust collection box 12 is equipped with a filter device including a primary filter 17 and a secondary filter 19, so that it can be used without the paper bag filter 24.

(f) Effects of the invention Since the vacuum cleaner according to the invention is constructed as described above, the air intake port gasket made of a single elastic member connects the hose connection port of the vacuum cleaner body, the air intake port of the dust collection box, and the air intake port of the dust collection box. It is possible to sufficiently maintain airtightness between the paper bag filter and the mount. Additionally, the outer and inward annular fins create a double seal with the backing paper of the paper bag filter, further improving airtightness. Furthermore, since it is only necessary to attach a single intake port gasket to the intake port of the dust collection box, only one part is required to make the intake port airtight, and the number of assembly steps can be reduced.

[Brief explanation of drawings]

Fig. 1 is an external perspective view of the vacuum cleaner according to the present invention, Fig. 2 is an oblique view with the lid removed, Fig. 3 is a central vertical sectional view of Fig. 1, and Fig. 4 is the same as Fig. 3. A-
A sectional view of the main part corresponding to A, FIG. 5 is an enlarged view of the main part of FIG. 3, FIG. 6 is a sectional view of the main part of the intake port gasket,
FIG. 7 is a sectional view of the lid opening/closing assisting mechanism shown in FIG. 2. 1...Vacuum cleaner body, 2...Electric blower, 4...
Dust collection box storage chamber, 12...Dust collection box, 24...Paper bag filter, 14...Intake port gasket, 29,3
0,31...Annular fin portion.

Claims (1)

[Scope of utility model registration request] A dust collection box storage chamber with a hose connection port is formed at the front of the vacuum cleaner body with a built-in electric blower at the rear.
In the case where a dust collection box with a built-in paper bag filter is removably installed in the storage chamber, an intake port gasket made of an elastic member is attached to the intake port of the dust collection box opposite to the hose connection port. The intake port gasket has an outward annular fin that abuts the peripheral edge of the hose connection port on one side, and an outward annular fin that abuts the mount of the paper bag filter and an inward annular fin on the other side. A vacuum cleaner characterized in that each of the following is formed.