JPS6345237Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a vacuum cleaner in which a disposable filter bag is removably attached to the outlet side of a suction port.

[Conventional technology]

A conventional vacuum cleaner filter bag attachment structure is shown in FIG. 1 in the figure is the dust collection case lid;
2 is a dust collection case lid, 3 is a lid clamp, 4 is a suction port, 5 is a holder, 6 is a gasket, and 7 is a disposable filter bag. The holder 5 has a stopper engaging portion 5a and a pair of left and right intermediate engaging portions 5b (only one is shown), and the seal 6 has an annular seal portion 6a with a U-shaped cross section that contacts the filter frame 7a of the filter bag 7. have.

To attach the filter bag 7 in this structure, with the dust collection case lid 2 open, insert the filter frame 7a between the gasket 6 and the intermediate engagement part 5b, and then insert the filter frame 7a into the stopper engagement part. 5a, the dust collection case lid 2 may be closed.
Moreover, the filter bag 7 can be removed by pulling it out in the reverse order of the above-mentioned installation. And filter bag 7
In the attached state, the annular seal portion 6a is elastically deformed and comes into close contact with the filter frame 7a, and presses the filter frame 7a against each of the engaging portions 5a and 5b.

[Problem that the invention attempts to solve]

However, according to the conventional structure, since the holder 5 has the annular holding part 5c of the annular seal part 6a, the annular seal part 6a does not escape when the filter bag 7 is attached. For this reason, the filter frame 7a is pressed fairly strongly by the annular seal part 6a, and therefore the filter frame 7a is pushed in the direction of the arrow in FIG. There is a strong tendency to warp in a convex manner. This made it difficult to remove the filter bag 7. The above-mentioned warping can be eliminated by making the engaging part 5b long enough to be close to the stopper engaging part 5a, but doing so not only increases the material cost and causes high costs, but also makes it difficult to insert or remove the filter frame 7a. This is not a preferable measure because the resistance increases. Moreover, since the annular seal part 6a does not escape as described above, the filter frame 7a, which is inserted and removed while rubbing this seal part 6a, allows the annular seal part 6a to
There was a risk that it would be turned over.

Therefore, an object of the present invention is to provide a vacuum cleaner in which the filter bag can be easily inserted and removed from the suction port, and there is no fear that the annular seal part of the gasket will be peeled off during this insertion and removal. There is a particular thing.

[Problem that the invention attempts to solve]

Therefore, in order to solve the above problems, the present invention provides a holder 2 that surrounds the outlet side of the suction port 22.
3, an annular protrusion 24 located inside and protruding
and a plane 2 connected to the outer periphery of the root of this protrusion 24.
5, a stopper engaging portion 26 provided outside this plane 25 and with which the insertion tip of the filter frame 37 is engaged and held; and a stopper engaging portion 26 located on the insertion side of the filter frame 37 from the engaging portion 26;
and a plurality of intermediate engaging portions 27 that are engaged and held. Furthermore, a gasket 28 that is attached to this holder 23 and that removably attaches a disposable filter bag 33 to the outlet side of the suction port 22 between the holder 23 and the holder 23 is attached to a thin annular gasket 28 whose inner surface is hollowed out. The configuration includes a seal portion 29. Then, this annular seal portion 29 is attached to its outer peripheral wall 30.
is in contact with the outer circumferential surface of the annular protrusion 24, and the rest is placed over the annular protrusion 24 apart from the annular protrusion 24.

[Effect]

According to the present invention, the suction port 2 of the filter bag 33
When inserted into and removed from the filter frame 37, the annular seal portion 29 of the gasket 28 comes into contact with the filter frame 37, and its outer circumferential surface aligns with the plane 2 as the filter frame 37 is inserted into and removed from the filter frame 37.
5 and escapes while being elastically deformed. This reduces the resistance that accompanies the insertion and removal of the filter frame 37 and prevents the filter frame 37 from being pushed too hard, preventing the filter frame 37 from warping between the engaging portions 26 and 27 of the holder 23. Deformation can be suppressed. Needless to say, when the filter bag 33 is attached, the annular seal portion 29 is in close contact with the filter frame 37 due to its elastic deformation, and can exhibit the necessary sealing performance.
The above-described action of the annular seal portion 29 escaping along the plane 25 can reduce the force required to turn over the outer peripheral wall 30 of the seal portion 29 when the filter frame 37 is inserted and removed. In addition, since the outer circumferential surface of the annular protrusion 24 of the holder 23 and the inner surface of the outer circumferential wall 30 of the annular seal portion 29 can come into contact with each other, the annular shape The protrusion 24 supports the annular seal portion 29 from inside. Due to this action, the annular seal portion 2
It is possible to eliminate the possibility that the number 9 will be turned over.

〔Example〕

An embodiment of the present invention will be described below with reference to FIGS. 2 to 4.

In the figure, reference numeral 11 denotes an accessory storage case, and a vacuum cleaner 12 is detachably attached to the upper part of this case.
Note that 13 is a rear locking protrusion, and 14 is a vacuum cleaner clamp. The vacuum cleaner 12 includes a main body case 16 that houses an electric blower 15 and a cord reel (not shown), and a dust collection case 17 that is detachably connected to the case 16. In this embodiment, the dust collection case 17 is the main part 1 of the dust collection case.
8 and a dust collection case lid 19, the case lid 19
is rotated around the pivot 20 and the dust collection case main part 1
The top opening of the dust collecting case 8 is opened and closed, and the closed state of the dust collecting case lid 19 is held by a lid clamping mechanism 21. Note that 21a in FIG. 3 indicates a clamp axis.

The dust collection case 17 is formed with a suction port 22 that opens on the front surface thereof, and this suction port 2
A holder 23 is attached by screws or the like so as to surround the outlet side of 2. The holding body 23 includes an annular protrusion 24, a flat surface 25, a stopper engagement portion 26, and an intermediate engagement portion 27.

That is, the annular protrusion 24 protrudes rearward (in the opposite direction to the suction port 22) at the inner position of the holder 23, and in this embodiment, it has a structure in which the outer peripheral surface has a slope that continues to the protruding end. There is. and,
The plane 25 is provided continuously on the outer periphery of the root of the annular protrusion 24 . Furthermore, the stopper engaging portion 26
is formed into a substantially concave groove shape and is provided on the outside of the plane 25, and is adapted to engage and hold an insertion tip of a filter frame, which will be described later, in this engaging portion 26. In addition, a plurality of intermediate engaging portions 27 are provided, each having a substantially L shape and located outside the plane 25 and closer to the filter frame insertion side than the engaging portion 26 . The intermediate portion of the filter frame is engaged with and held by these engaging portions 27, 27, and these are adapted to guide insertion and removal of the filter frame.

A packing 28 made of synthetic rubber or the like is attached to this holding body 23. This packing 28 has a thin annular seal portion 29 with a hollowed out inner surface.
The seal portion 29 is provided to cover the annular protrusion 24. Then, the annular seal portion 29
The outer circumferential wall 30 is in contact with the outer circumferential surface of the annular protrusion 24, and the inner portion other than the outer circumferential wall 30 is separated from the annular protrusion 24 and covers the protrusion 24. In this embodiment, the gasket 28 has a suction port fitting part 31 that forms a seal between the suction port 22 and the holder 23, and also has a suction port fitting part 31 that forms a seal between the suction port 22 and the holder 23.
However, these may be formed using other packings.

In the figure, numeral 33 denotes a disposable filter bag, and its filter frame 34 is rectangular in shape and has an opening in the center, as is well known. Furthermore, in the figure, 35 is a rib formed on the dust collection case lid 19 to reinforce the lid 19 and hold down the filter frame 37, 36 is a spare filter bag storage section, 37 is a fine dust trapping filter, and 38 is another rib. It is Patsukin.

In the vacuum cleaner having the above structure, in order to attach the filter bag 33 to the suction port, the dust collection case lid 19 is opened, and the intermediate locking part 27 and the gasket 2 are connected to each other.
8, insert the filter frame 34 from the direction of the arrow in FIG. It is sufficient to press the filter frame 34 with the ribs 35. In this attached state, the annular seal portion 29 of the gasket 28 is elastically deformed, and the tip portion is crushed so that it comes into close contact with the filter frame 34, so that the gasket 28 exhibits the necessary sealing performance. The annular seal portion 29 can be elastically deformed easily because its outer peripheral wall 30 can escape outward (that is, can move along the plane 25). Therefore, while obtaining the necessary sealing effect, the annular seal portion 29 is prevented from strongly pressing the filter frame 34, so that warping of the filter frame 34 can be suppressed. Further, to remove the filter bag 33, the procedure for attaching the filter bag 33 may be reversed. Further, by suppressing the warpage of the filter frame 34 described above and reducing the resistance accompanying the escape of the outer peripheral wall 30 described above, the operation of inserting and removing the filter bag 33 described above can be facilitated. In addition, as the resistance due to the relief of the outer peripheral wall 30 is reduced, the force for turning over this wall 30 is also reduced, and the outer peripheral wall 30 is
0 is supported from the inside by the annular protrusion 24, so that when the filter bag 33 is inserted or removed, the outer peripheral wall 3
It is possible to eliminate the possibility that 0 will be turned over.

Note that in the above embodiment, the cross-sectional shape of the annular seal portion 29 of the packing 28 is approximately U-shaped;
This may be approximately U-shaped, and if necessary, the inner surface may be hollowed out. Further, the present invention can be applied to a vacuum cleaner in which a suction port is provided on a dust collection case lid that is pivotally attached to or detachable from the main part of the dust collection case. In addition, when implementing the present invention, unless it is contrary to the gist of the invention, the specific structure, shape, etc. of the suction port, holder, annular protrusion, plane, each engaging part, packing, annular seal, etc. Of course, the position, material, etc. are not limited to the one embodiment described above, and can be configured and implemented in various ways.

[Effect of idea]

Since the present invention described above has the configuration described in the above-mentioned utility model registration claims, the filter frame is held by the stopper engaging portion and the intermediate engaging portion of the holding body that partially engages with the filter frame. Nevertheless, it provides relief to the annular seal part of the packing when inserting and removing the filter bag, and suppresses warping of the filter frame due to the packing when the filter bag is attached.
In addition to making it easier to insert and remove the filter bag, due to the relief and the support from the inside of the annular seal part by the annular protrusion, there are effects such as eliminating the risk of the annular seal part being turned over when inserting and removing the filter bag. be.

[Brief explanation of drawings]

Fig. 1 is a vertical sectional side view showing a part of a conventional vacuum cleaner, Figs. 2 to 4 show an embodiment of the present invention, Fig. 2 is a partially sectional side view, and Fig. 3. is a partial vertical side view, and FIG. 4 is a sectional view taken along the line - in FIG. 3. 22... Suction port, 23... Holding body, 24... Annular protrusion, 25... Plane, 26... Stopper engaging portion, 27... Intermediate engaging portion, 28... Packing, 2
9... Annular seal portion, 30... Outer peripheral wall of packing, 33... Filter bag, 34... Filter frame.

Claims (1)

[Scope of utility model registration request] A holder is provided on the outlet side of the suction port to which a gasket is attached surrounding the outlet side, and a disposable filter bag can be attached to the outlet side of the suction port in a removable manner using these gaskets and the holder. In the vacuum cleaner, the holding body has an annular protrusion located inside and protruding, a plane continuous to the outer periphery of the base of this protrusion, and an insertion tip of the filter frame provided outside this plane. The stopper engaging part is engaged and held, and a plurality of intermediate engaging parts are located on the filter frame insertion side from the engaging part and the filter frame is engaged and held, and the inner surface of the gasket is hollowed out. A thin annular seal portion is provided, and the outer circumferential wall of the seal portion is in contact with the outer circumferential surface of the annular protrusion, and the seal portion is placed over the annular protrusion with the other parts being separated from the annular protrusion. A vacuum cleaner characterized by: