JPH0151254B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (A) Field of Industrial Application The present invention relates to a vacuum cleaner using a bag-like filter such as a disposable paper bag.

(B) Conventional technology For example, in the conventional technology disclosed in Japanese Patent Application Laid-Open No. 56-28734, a bag-shaped filter is inserted into the dust case by opening and closing a lid having an air intake port provided on the front side of the dust case. I'm trying to escape. In other words, when opening the lid and attaching the bag-like filter to the dust case, it can be inserted in a small folded state, so installation is easy. To take out the bag-shaped filter, you must leave the bag opening of the bag-shaped filter attached and rotate the lid, pull the bag opening taut, and remove it from the front opening of the dust case. The bag-shaped filter gets caught on the edge, making it difficult to take out.
If it is pulled out forcibly, it will break, and the dust that has been collected will be scattered all over the floor, which requires a lot of effort to clean up afterwards.

(c) Problems to be solved by the invention The present invention has been made in view of the above points.
To provide a vacuum cleaner in which a bag-like filter can be easily and easily inserted into and removed from a dust case.

(d) Means for Solving the Problems The vacuum cleaner of the present invention includes a main body case that houses an electric blower, and a cover body that is detachably connected to the main body case and that has an air intake port on the front surface and that can be opened and closed. and a dust case with a dust disposal opening on the rear surface, and a bag-like filter housed in the dust case, and an inner surface of the lid body has a dust case with a dust-disposal opening on the rear surface, and a bag-like filter with a dust-disposal opening on the inside surface of the lid body. A pair of left and right elastic plates and a lower locking protrusion are provided to engage and hold the dust case, and the dust case is configured to expand the elastic plates to disengage from the bag opening when the lid is closed. A device is provided for supporting the upper part of the bag opening in a closed state of the dusting opening and holding the bag opening between a guide wall and the lower locking projection, and the device is interlocked with opening of the dusting opening. The bag-shaped filter can be discharged from the dust-throwing opening by releasing the holding of the bag opening.

(E) Function With the above configuration, the bag-shaped filter is installed into the dust case from the front side of the dust case with the lid opened, and after dust collection, the dust case is separated from the main case and the dust filter is installed on the rear side. It can be discharged from the disposal opening.

(F) Embodiments The present invention will be described below with reference to embodiments shown in the drawings.

Reference numeral 1 denotes a main body case with wheels 2, 2 on both sides of the lower part, and this case houses an electric blower and a cord reel (not shown), and is also provided with an operating button 3 and a switch button 4 for the cord reel. 5
1 is a dust case equipped with a front handle body 6 and a flexible wheel 7 on the bottom surface, and the case is detachably connected to the main body case 1 by a lower engaging part 8 and an upper clamp 9. Reference numeral 10 denotes a lid body in which an air intake port 11 is formed, and the lid body has an opening/closing spring member 1 at the front part of the dust case 5 so as to cover the front opening at the front part of the dust case 5.
2 via a support shaft 13 so as to be openable and closable.

Reference numeral 14 denotes an inlet gasket for the inlet port 11, and an annular airtight flange 15 is integrally formed on the gasket. Further, a spring 16 is provided at the top of the lid 10.
A clamp 17 is provided through the dust case 5, and this clamp is operated by a push button 18 provided at the upper front end of the dust case 5 to engage and disengage from the dust case 5. Reference numeral 19 denotes a filter unit that opens and closes the dust disposal opening 20 on the rear surface of the dust case 5, and this unit is connected to the filter support frame 2.
1 and a non-ventilating partition plate 23 located in front of the filter and facing the intake port 11, and a pivot portion 24 formed on the upper part of the filter support frame 21 , 24 are connected to a support shaft 26 via a spring member 25.
is rotatably supported in a hole provided in the dust case 5.

Further, the filter unit 19 is moved upward by a clamp lever 28 provided at the upper part of the dust case 5, so that the locking groove 27 formed in the upper part of the filter support frame 21 is pulled up, and the lower locking piece 27 of the filter support frame 21 is pulled up. The engagement with the locking groove 30 provided on the inner bottom of the dust case 5 is released, and the filter unit 19 is opened by the bias of the spring member 25.

Reference numeral 31 denotes a pre-filter provided inside and above the dust case 5. On the upper surface of the pre-filter, a locking/disengaging device 33 for a bag-shaped filter 32 such as a paper bag, which operates in conjunction with opening/closing of the filter unit 19, is slidably attached. will be placed. The locking/disengaging device 33 includes an operating lever 35 having a locking piece 34 formed at its tip, a rib 36 formed on the lever, and the prefilter 31.
The spring 38 is stretched between a rib 37 formed in the spring 38 and biases the operating lever 35 rearward. Reference numeral 39 denotes a guide projection for the operating lever 35 formed on the inner surface of the dust case 5.

A mounting portion 42 is formed on the inner surface of the lid 10 to which a bag opening 41 of a bag-shaped filter 32 to be installed inside the dust case 5 is attached. The mounting portion 42 engages with and holds the bag opening 41 of the bag-shaped filter 32 when the lid body 10 is in an open state. A pair of left and right elastic plates 4 that also serve as guides for the bag opening 41
3, 43 and a locking protrusion 44 at the bottom that also serves as fall prevention.
44. The elastic plate 43 is formed of, for example, a spring steel guiding convex portion 45 and a guide piece 46 that guides the bag opening 41 rearward in a non-holding state when engaged. Further, on both sides of the front inner surface of the dust case 5, elastic plates 43, 43 are expanded when the lid body 10 is closed, and a bag-like filter 3 is provided.
Guide walls 47, 47 are provided on the left and right sides for disengaging the bag body 41 from holding the bag body 41 by disengaging it from the second bag opening 41. 48 is a seal gasket attached to the filter support frame 21, and 49 is a seal gasket provided on the front surface of the air-impermeable partition plate 23. In addition, the filter unit 19 is rotatably provided with a large gear 50 which is also used for manual dust removal and which removes dust from the main filter 22.The large gear is also connected to an intermediate gear 51 which is linked to a cord reel to enable dust removal in conjunction with the cord reel. It is said that

Next, another embodiment of the mounting portion 42 shown in FIG. 7 will be described. A pair of left and right guide plates 52, 52 provided on the inner surface of the lid body 10, and a pair of elastic holding pieces 53, 53 formed on the upper part and a locking protrusion 54 provided at the bottom,
54, and the dust case 5 has elastic holding pieces 53, 53 pushed up when the lid body 10 is closed to disengage the bag opening 41 of the bag-like filter 32 and release the holding of the bag opening 41. guide wall 4
0 is set.

Further, another embodiment of the locking/disengaging device 33 will be explained based on FIG. 10.
When the partition plate 23 is released by rotation of the filter unit 19 using the pivot shaft 57, the rotation cam 55 rotates and the opening 41 of the bag-shaped filter 32 is rotated. The pressure is released.

Next, the usage status will be explained.

First, a case where a bag-shaped filter 32 such as a paper bag is used will be explained.

If the push button 18 is pressed, the clamp 1 of the lid body 10 will close.
7 moves downward against the spring 16 and is disengaged. As a result, the lid body 10 is opened forward by the spring force of the opening/closing spring member 12 using the support shaft 13 as a fulcrum.

Next, with this lid body 10 in the open state, grasp the bag opening 41 of the bag-shaped filter 32, and hold the left and right elastic plates 4.
Lower end locking protrusions 44, 4 along the guides 3, 43
Insert up to 4. In this state, the bag opening 41 is pressed by the airtight flange 15 of the intake port packing 14, and the elastic plate 43,
It is held in abutment engagement with the convex portions 45, 45 side of 43. Therefore, when the lid body 10 is closed, the bag-shaped filter 32 does not shift its position.

Next, when the lid body 10 is closed and engaged with the dust case 5, the elastic plate 43,
43 is expanded and disengaged from the bag opening, and the bag body 41
The hold will be released. At the same time, since the tip of the operating lever 35 of the locking/disengaging device 33 protrudes toward the opening side of the dust case 5 of the lid body 10, the bag-shaped filter 32
The upper part of the bag opening 41 is held between the protrusion 58 of the lid 10. The lower end of the bag opening 41 has a locking protrusion 4
4, 44, and therefore the bag opening 41 is held between the locking and disengaging device 33 and the locking protrusions 44, 44.

Therefore, even if the lid body 10 is opened after dust has been sucked in, the bag opening 41 of the bag-like filter 32 is connected to the lower end locking protrusions 44, 44 and the operating lever 35 of the locking/disengaging device 33.
It becomes locked and you can see how much dust is clogging inside.

Then, when the electric blower is operated to suck dust from the intake port 11 and the bag-like filter 32 is full, the engagement between the main body case 1 and the dust case 5 is released by pressing the upper clamp 9, and the above-mentioned If the dust case 5 is carried to a dumping place and the clamp lever 28 is pressed, the filter unit 19 can be opened and the bag-shaped filter 32 can be thrown away by the above-described operation.

That is, when the filter unit 19 is opened, the air-impermeable partition plate 23 releases the pressure of the locking/disengaging device 33, and the spring 38 moves the operating lever 35 rearward, so that the upper end of the bag opening 41 is released.
As a result, the lower end of the bag opening 41 of the bag-shaped filter 32 climbs over the locking protrusions 44, 44, and the dust disposal opening 2
0, the bag-shaped filter 32 is discharged to the outside. Further, since the engaging/disengaging device 33 is moved in parallel with the pre-filter 31, a large distance can be maintained between the bag opening 41 of the bag-like filter 32, and reliable one-touch engagement/disengagement without binding is possible. Furthermore, when the bag-like filter 32 is used up, it can be used as before, and in this case, the dust collected in the coarse dust space 59 and the fine dust space 60 are all transferred to the filter unit 1.
By opening 9, the dust is discharged to the outside through the dust outlet 20.

(G) Effects of the Invention Since the vacuum cleaner according to the present invention is configured as described above, the bag-shaped filter has a bag opening with a
It can be easily attached by simply holding it on the open lid with an elastic plate. Moreover, this holding state is released by closing the lid, but since the bag opening is held by the lower locking protrusion and the device that supports the upper part of the bag opening, the bag opening can be released when the lid is closed. The opening does not come off, and furthermore, after collecting dust, the bag-like filter can be discharged from the garbage disposal opening by opening the rear garbage disposal opening and releasing the holding of the bag opening by the device in conjunction with this opening. can. Therefore, the bag filter can be installed from the front side of the dust case, and after collecting dust, it can be discharged from the rear side, making it easy to attach the bag filter to the dust case and discharge it, making it easy to use for electric cleaning. machine can be provided.

[Brief explanation of drawings]

FIG. 1 is a perspective view of the essential parts of an embodiment of the vacuum cleaner according to the present invention, FIG. 2 is a sectional view of the essential parts of FIG. 1,
Figure 3 is a sectional view of the main part when installing the bag filter.
Figure 4 is a sectional view of the main part when disposing of garbage, Figure 5 is a sectional view of the main part when the lid is closed, Figure 6 is an exploded perspective view showing the attachment relationship between the lid and the bag filter, and Figure 7 is a sectional view of the main part when disposing of garbage. 6
FIG. 8 is a perspective view of the main part of the filter unit, FIG. 9 is an exploded perspective view of the pre-filter and the engagement device, and FIG. FIG. 3 is a cross-sectional view of main parts showing the operating state of the device. 1...Main case, 5...Dust case, 11
...Intake port, 10...Lid body, 20...Dust disposal port, 19...Filter unit, 32...Bag filter.

Claims (1)

[Claims] 1. A main body case with a built-in electric blower, a dust case that is removably connected to the main case and has an openable and closable lid with an intake port on the front and a dust disposal opening on the rear, and an interior in the dust case. The inner surface of the lid body is provided with a pair of left and right elastic plates and a lower locking protrusion that engage and hold the bag mouth of the bag filter when the lid body is open. , the dust case includes a guide wall for expanding the elastic plate to disengage from the bag opening when the lid body is closed; and a guide wall that supports the upper part of the bag opening when the dust disposal opening is closed. and a device for holding the bag opening between the lower locking protrusion and the lower locking protrusion;
The vacuum cleaner is characterized in that the device releases the holding of the bag opening in conjunction with the opening of the dust opening so that the bag-like filter can be discharged from the dust opening.