JP3424154B2 - Electric vacuum cleaner - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric vacuum cleaner in which a replaceable dust collecting bag is mounted in a dust collecting chamber for use.

[0002]

2. Description of the Related Art Conventionally, a dust collecting chamber for storing a dust collecting bag formed in a cleaner body can be opened and closed with a lid,
BACKGROUND ART An electric vacuum cleaner is known in which a replaceable dust collecting bag is housed in a dust collecting chamber for use.

FIGS. 15 and 16 show, for example, Japanese Patent Laid-Open No. 8-23.
FIG. 15 shows a conventional electric vacuum cleaner disclosed in Japanese Patent Publication No. 8202. FIG. 15 is a side sectional view showing the suction port near the suction port with the lid opened, and FIG. 16 shows the suction port near the suction port closed. It is a side surface sectional view shown in a state.

In this conventional vacuum cleaner, when the dust bag 1 is replaced, the protrusion 2a of the clamp member 2 for fixing the mouth plate 3 of the dust bag 1 is erroneously set as shown in FIG. Even if the lid 4 is closed while being placed on the upper side of the mouth plate 3, the contact portion 5a of the guide member 5 provided on the lid 4 contacts the upper portion of the mouth plate 3 as shown in FIG. 3 is guided to the seal member 6 side so that the protruding portion 2a of the clamp member 2 can be removed from the upper side of the mouth plate 3 to the back surface side thereof. As a result, even if the lid is closed while the protrusion 2a of the clamp member 2 is placed on the upper side of the mouth plate 3 of the dust collecting bag 1, the protrusion 2a of the clamp member 2 can be attached to the upper back surface of the mouth plate 3. The mouth plate 3 can be moved to the side, the mouth plate 3 is not deformed by the protrusion 2a when the lid is closed, and the mouth plate 3 can be pressed and fixed from the back surface side. Reference numeral 7 in each drawing is a dust collecting chamber for accommodating the dust collecting bag 1 together with a lid body 4 formed on the suction side of the electric blower of the cleaner body and detachably attached to the upper opening thereof, and 8 is a dust collecting chamber. A hole is formed in the central portion of the front wall of 7, and the seal member 6 is attached to the peripheral edge of the hole. Reference numeral 9 is a suction port into which a connecting pipe connected to a suction nozzle (not shown) is inserted, 11 is a hinge portion for attaching the clamp member 2 to the cleaner body, and 12 is the clamp member 2.
Is a spring that constantly urges the protruding portion 2a in the engagement direction with the mouth plate 3.

[0005]

As described above, in the conventional vacuum cleaner, when the dust bag 1 is replaced, the lid 4 is closed with the protrusion 2a of the clamp member 2 on the upper side of the mouth plate 3. Even in such a case, the protruding member 2a can be moved to the upper back surface side of the mouth plate 3 by the closing operation of the lid body 4 by the guide member 5 provided on the lid body 4. However, the overlap of the orbit of the guide member 5 when the lid 4 is closed and the orbit of the mouth plate 3 when the dust bag 1 is mounted is close to the clamp member 2, that is, the upper side of the mouth plate 3. 2 protrusion 2
It is limited to the vicinity of the position of the upper side of the mouth plate when a is in a riding state. Therefore, when the mouth plate 3 is located away from the clamp member 2, the guide member 5 does not come into contact with the mouth plate 3, and in this state, the dust collecting bag 1 is not properly attached and the dust collecting bag 1 In the case of an electric vacuum cleaner equipped with a function of detecting the presence or absence, the lid 4 does not close, and in the case of an electric vacuum cleaner having no dust bag detection function, there is a gap between the mouth plate 3 and the seal member 6. When used as it is, dust spills into the dust collection chamber 7, and the dust enters the electric blower or the like to cause a trouble.

A technical object of the present invention is to put a dust collecting bag in a dust collecting chamber by directing a mouth plate near the clamp member even if the mouth plate of the dust collecting bag is separated from the clamp member. This is to ensure that the dust bag can be attached to the main body of the vacuum cleaner with the closing operation of.

[0007]

According to a first aspect of the present invention, there is provided an electric vacuum cleaner, wherein a clamp member for elastically holding a mouth plate of a dust collecting bag extends from a locking portion of the mouth plate side. An abutment surface is provided that abuts from the tip portion to the peripheral side of the front face of the mouth plate and is slidably guided to the locking portion while being driven by the contact pressure from the mouth plate side. When the lid is closed, it comes into contact with the peripheral side of the rear surface of the mouth plate, and it can be slidably guided from a position away from the clamp member to a position where it can contact the contact surface of the clamp member and to the locking part of the clamp member. A guide member having a portion is provided.

Further, in the electric vacuum cleaner according to claim 2 of the present invention, the backflow of dust is such that the abutment portion of at least the guide member and the clamp member projects outward from the vicinity of the mouth plate of the dust bag. A holder for prevention is attached, the dust collecting bag is mounted in the dust collecting chamber of the cleaner body together with the holder, and the dust collecting bag contacts the clamp member and the guide member via the holder.

According to a third aspect of the present invention, in the vacuum cleaner, the mouth plate of the dust bag has a U-shaped frame that covers at least the entire length of the front and back surfaces of the lower edge and both side edges. The dust collecting bag is mounted together with the holder in the dust collecting chamber of the cleaner body, and the dust collecting bag contacts the clamp member and the guide member via the holder.

The vacuum cleaner according to claim 4 of the present invention is movable in the dust collecting chamber of the cleaner body so as to support and guide the mouth plate when the dust bag is inserted into the dust collecting chamber. An insertion guide is provided.

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiment 1. Hereinafter, the present invention will be described based on the illustrated embodiments. 1 to 4 show an electric vacuum cleaner according to claim 1 of the present invention. FIG. 1 is a side cross-sectional view showing the entire structure thereof, and FIGS. 2 to 4 are main parts for explaining the operation thereof. It is a side sectional view, and in each drawing, the same reference numerals are given to the portions corresponding to the above-mentioned conventional example.

The electric vacuum cleaner according to the first embodiment is equipped with an electric blower 22 inside a cleaner main body 21.
The suction port 9 is provided on the upstream side and the exhaust port 23 is provided on the downstream side of the electric blower 22. A dust collection chamber 7 is formed between the electric blower 22 and the suction port 9, a part of the dust collection chamber 7 is opened, and a lid 4 that can be opened and closed is attached so as to cover the opening. The detachable dust bag 1 is mounted inside the dust chamber 7. A front wall 8 having a hole is integrally formed with the body 21 or a front wall 8 which is a separate body having a hole is fixed to the body 21 on the front surface of the dust collecting bag of the cleaner body 21. The front wall 8 is provided with a concave bottom portion 8a which is a mounting portion of the mouth plate 3 of the dust collecting bag 1 on the dust collecting chamber 7 side of the lower edge thereof.
A seal member 6 having a hole is fixed to the center thereof and communicates with the suction port 9 via the seal member 6.

A movable clamp member 24 is attached to the inside of the dust collection chamber 7 by a shaft 25 as a means for fixing the flat plate-shaped mouth plate 3 bonded to the opening of the dust collection bag 1. ing. The clamp member 24 has a contact surface 24a formed at the tip of a piece extending from the hinge portion and which contacts the upper side of the mouth plate 3 when the mouth plate 3 is attached or detached, and the mouth plate is provided on the base end side of the contact surface 24a. A hook 24b for fixing 3 is provided. Further, a torsion spring 26 is installed between the hinge portion of the clamp member 24 and the cleaner body 21, and the torsion spring 26 urges the contact surface 24a in a direction (counterclockwise direction) in which the contact surface 24a is always engaged with the mouth plate 3. Has been done.

On the inner surface of the lid body 4, there is provided an abutting portion 28 which is an inclined surface capable of abutting on the upper side portion on the back surface side of the mouth plate 3, and when the lid is closed, the upper side portion of the mouth plate 3 is clamped. Contact surface 24a of
A guide member 27 is provided which guides the tip end of the contact member 24, slides on the contact surface 24a, and guides it to the seal member 6 side.

Further, the cleaner body 21 is provided with a power switch 29 and a power cord 30, but it may be a battery built-in product.

Next, the operation of the electric vacuum cleaner according to the first embodiment will be described. First, when mounting a new dust collecting bag 1 in the dust collecting chamber 7, as shown in FIG. 2, the dust collecting bag 1 is arranged so that its mouth plate 3 faces the suction port 9 side, and the mouth plate 3 is placed on the front wall. 8
It is placed on the bottom portion 8a of the container in a free state. At this time, the mouth plate 3 may be placed in a state of being completely separated from the clamp member 24, or may be placed so that the upper side of the front side of the mouth plate 3 is in contact with the contact surface 24a of the clamp member 24. Good. In any case, at the time of inserting the dust collecting bag 1 into the dust collecting chamber 7,
It is not necessary to engage the mouth plate 3 with the hooks 24b of the clamp member 24; it is only necessary to place the mouth plate 3 on the bottom 8a of the front wall 8. Here, it is assumed that the dust collecting bag 1 is placed inside the dust collecting bag 1 so that the mouth plate 3 thereof is completely separated from the clamp member 24.

From this state, as shown in FIG. 3, the tip 4a of the lid 4 is inserted into and engaged with the recess 21a of the cleaner body 21, and the lid 4 is closed in this direction (arrow A).
Direction), the guide member 27 approaches the mouth plate 3 from the rear surface side of the mouth plate 3 in accordance with the movement of the lid body 4, and the abutting portion 28 of the guide member 27 causes the contact portion 28 of the guide member 27 to be the upper side portion of the rear surface side of the mouth plate 3. Abut a predetermined angle. When the movement of the lid 4 in the direction of the arrow A further proceeds, the upper side of the mouth plate 3 slides on the contact portion 28,
The mouth plate 3 moves in the direction of the arrow B, and the surface of the contact portion 28 of the guide member 27 and the contact surface 2 of the clamp member 24 are moved as shown in FIG.
It reaches the intersection with 4a.

From this state, when the lid 4 is further moved in the direction of arrow A, the upper side of the back plate 3 of the mouth plate 3 is the guide member 2.
7, the upper side of the front side of the contact portion 28 of the clamp member 2
4 to the contact surface 24a of the clamp member 24
While pushing in the direction of arrow C, the surface of the contact portion 28 and the contact surface 24a are slid and moved to the seal member 6 side.

At the stage where the opening of the cleaner body 21 is closed by the lid 4, the upper side of the mouth plate 3 gets over the hook 24b of the clamp member 24 as shown in FIG. At the same time when it comes into contact with the sealing member 6, the mouth plate 3
The upper side of the back surface of the is engaged with the hook 24b and pressed from the rear side, and the contact state with the seal member 6 is held and fixed. This completes the mounting of the dust collecting bag 1.

Even when the lid 4 is opened after the dust bag 1 is completely attached, the clamp member 24 is constantly urged in the engagement direction with the mouth plate 3 by the spring force of the torsion spring 26.
Unless the clamp member 24 is intentionally moved against the spring force, the dust bag 1 will not be dismounted.

After mounting the dust collecting bag 1, the opening of the mouth plate 3 and the opening of the seal member 6 are communicated with each other, and the mouth plate 3 and the seal member 6 are in contact with each other at the peripheral edge of the opening, and the mouth plate 3 and Since the gap between the seal members 6 disappears, when the electric blower 22 is driven to start sucking dust, the dust passes from the opening of the seal member 6 through the opening of the mouth plate 3 into the dust collecting bag 1, No dust will leak out.

As described above, in the electric vacuum cleaner of the first embodiment, the dust collecting bag 1 is arranged so that the mouth plate 3 thereof faces the suction port 9 side, and the mouth plate 3 is placed in the dust collecting chamber 7. If it is simply placed on the bottom 8a of the front wall 8 and the lid 4 is closed, the mouth plate 3 is closed before the lid is closed.
The dust collecting bag 1 can be securely attached even when is completely separated from the clamp member 24. Therefore, erroneous mounting of the dust collecting bag 1 does not occur, dust does not spill into the dust collecting chamber 7 and is not sucked by the electric blower 22 to cause an accident, and the usability is improved. .

Embodiment 2. FIG. 5 is an enlarged perspective view showing a guide member portion of a lid which is an essential part of the electric vacuum cleaner according to claim 1 of the present invention, and FIG. 6 is an enlarged perspective view showing the clamp member. In the figure, the same parts as those in the first embodiment described above are designated by the same reference numerals. Note that description will be given here with reference to FIG. 1 used in the first embodiment.

In the electric vacuum cleaner according to the second embodiment, a plurality of (here, three) pieces 31a, 31 of the guide member 27A extending in parallel to the inside of the guide member 27 from the lid 4 as shown in FIG.
b, 31c and each piece 31a, 31b, 31
Edges 28a, 2 of the side of c facing the clamp member 24
8b and 28c are angled to form a contact portion 28A.

Further, a notch 32 is provided in a part of the contact surface 24a of the clamp member 24 to form a hawk shape.

In the electric vacuum cleaner of the second embodiment,
A distance a between the edges 28a and 28c of the guide member 27A,
The distance c between the contact surfaces 24a, 24a of the clamp member 24 in the width direction is a> c, and the width (thickness) b of the edge 28b of the guide member 27A and the clamp member 24 are equal to each other. The relationship of the width d of the notch 32 was set so that b <d. That is, the piece 31b located at the center of the guide member 27A is inside the notch 32 of the clamp member 24, and the contact surfaces 24a and 24a of the clamp member 24 are the gaps between the pieces 31a and 31b of the guide member 27A. The pieces 31b and 31c are set so that they can be fitted in the gaps between them, and when the lid 4 is attached to the cleaner body 21, these pieces fit into each other in a tenon shape without interference. . The other configuration is similar to that of the first embodiment described above.

In the electric vacuum cleaner according to the second embodiment, the edge 28 of each piece 31a, 31b, 31c, which becomes the contact portion 28A of the guide member 27A, is provided on the upper side of the back side of the mouth plate 3.
Since a, 28b, and 28c simultaneously hit at a predetermined angle, the load applied to the guide member 27A when the lid is closed is distributed to the edges 28a, 28b, and 28c. Therefore, the load on each edge 28a, 28b, 28c is reduced, and the deformation or destruction of the guide member 27A due to the load when the lid is closed is prevented. Furthermore, stress concentration is eliminated also in the mouth plate 3, and its deformation is prevented.

Embodiment 3. FIG. 7 is an enlarged perspective view showing an example of a guide member portion of a lid, which is a main part of the electric vacuum cleaner according to claim 1 of the present invention.
Is an enlarged perspective view showing another example of the guide member portion of the lid body which is the main part of the electric vacuum cleaner according to claim 1 in the same manner. The same reference numerals are attached. In addition, also in the explanation here, the first
Reference is made to FIG. 1 used in the embodiment.

In the vacuum cleaner of the third embodiment, the width of the contact portion of the guide member is set to be larger than the wall thickness of the guide member itself.

As a concrete method thereof, in the example of FIG. 7, the guide member 27B is opposed to the clamp members 24 of a plurality of (in this case, two) pieces 41a and 41b extending from the lid 4 inwardly. The edges on the side to be bent are angled, the edges are integrally connected by a connecting surface 28d, and the connecting surface 28d is formed into a U-shaped cross section as a contact portion 28B.

Further, in the example of FIG. 8, the guide member 27C is angled at the edge of the single piece 51 extending in parallel from the lid body 4 to the side facing the clamp member 24, and the guide member 27C is angled there. Further, the plate 28e is integrally provided perpendicularly to the surface of the piece 51, and the plate 28 has a contact portion 28C with a T-shaped cross section.

In any of the examples, the width f of the contact portions 28B and 28C is set so that f> e, as compared with the wall thickness e of the pieces 41a (or 41b) and 51.

Further, as shown in FIG. 6 of the above-described second embodiment, the clamp member 24 is provided with a notch 3 in a part of its abutment surface 24a.
In the case of a hawk shape provided with 2, each guide member 27B,
The width f of each of the contact portions 28B and 28C of 27C and the width d of the notch 32 of the clamp member 24 are set so that f <d. However, each guide member 27B, 27C
When they are displaced from the clamp member 24 and installed at positions where they do not interfere with each other, the above relationship may be set so that f> d. The other configuration is similar to that of the first embodiment described above.

In the vacuum cleaner of the third embodiment, the contact portion 28B of the guide member 27B or the guide member 2 is used.
The contact portion 28C of 7C is formed of a plate-shaped surface, and when the lid 4 is mounted on the cleaner body 21, it comes into surface contact with the upper side of the mouth plate 3 on the back surface side. The load on the guide members 27B and 27C is reduced as compared with the first and second embodiments described above. Therefore, the deformation of the guide members 27B, 27C and the mouth plate 3 due to the load when the lid is closed can be reliably prevented, and the reliability is improved. Then, it is possible to prevent the generation of a gap between the mouth plate 3 and the seal member 6, and to reliably prevent dust from leaking from the mouth plate 3 portion.

Embodiment 4. FIG. 9 is a side cross-sectional view showing the relationship between the mouth plate of the dust bag 1 and the holder thereof, which is an essential part of the electric vacuum cleaner according to claims 1 and 2 of the present invention. The same parts as those of the embodiment are denoted by the same reference numerals. In addition, also in this case, reference is made to FIG. 1 used in the first embodiment described above.

In the electric vacuum cleaner of the fourth embodiment, a holder 61 for preventing backflow of dust is attached to the mouth plate 3 of the dust collecting bag 1.
The dust collecting bag 1 together with the holder 61 is attached to the dust collecting chamber 7 of the cleaner body 21.
It is mounted inside to prevent backflow of sucked dust.

More specifically, the holder 61 has a hole 62 in the central portion and at least the upper side portion 63.
A plate portion 64 protruding from the upper side of the mouth plate, and a cylindrical portion 6 formed integrally with the plate portion 64 and extending from the peripheral edge of the hole 62.
It is attached to the dust collecting bag 1 by inserting the tubular portion 65 into the dust collecting bag 1 through the hole of the mouth plate 3, and is mounted in the dust collecting chamber 7 in this state. . The other configuration is similar to that of the first embodiment described above.

In the electric vacuum cleaner according to the fourth embodiment, when the dust bag 1 is mounted in the dust collecting chamber 7 (when the lid is closed), the plate upper side portion 63 protruding from the upper side of the mouth plate of the holder 61.
The back surface of the above becomes a receiving surface, contacts the contact portion 28 of the guide member 27 on the lid 4 side, and the mouth plate 3 moves in accordance with the operation of the holder 61. That is, when the dust bag 1 is mounted in the dust collection chamber 7, the holder 61 replaces the mouth plate 3 and the holder 6 is inserted from the middle of the movement path as described in the first embodiment.
In the state in which 1 is also in contact with the contact surface 24a of the clamp member 24, the slide member 1 slides on the surface of the contact portion 28 of the guide member 27 and the contact surface 24a of the clamp member 24, and moves to the seal member 6 side, When the opening of the cleaner body 21 is closed by the lid 4, the hook 24b portion of the clamp member 24 is overcome and the front surface of the holder 61 abuts the seal member 6, and at the same time, the back side upper side portion of the holder 61 becomes the hook 24b. It is engaged and pressed from the rear, and the contact state with the seal member 6 is held and fixed. Therefore, the contact between the guide member 27 and the clamp member 24 and the mouth plate 3 is eliminated, and the deformation of the mouth plate 3 can be reliably prevented, and the leakage of dust from the mouth plate 3 portion can be prevented.

Embodiment 5. FIG. 10 is an enlarged side cross-sectional view showing a mouth plate attachment portion which is a main part of the electric vacuum cleaner according to claims 1, 2, 3, and 4 of the present invention. The same parts are designated by the same reference numerals. In addition, also in this case, reference is made to FIG. 1 used in the first embodiment described above.

In the vacuum cleaner of the fifth embodiment, the mouth plate 3 of the dust bag 1 is attached to the front wall 8 at the rear edge of the bottom 8a of the front wall 8 in the dust collecting chamber 7 of the cleaner body 21. An insertion guide 71 for guiding the insertion into the bottom portion 8a is attached by a hinge 72, and a free piece portion 73 of the insertion guide 71 supports the mouth plate 3 on the back side when the mouth plate 3 is inserted, so that the insertion work can be stably performed. It is the one.

In the vacuum cleaner of the fifth embodiment,
The insertion guide 71 has a size of the free piece portion 73, a part of the back surface of the mouth plate 3, or a holder 61 when the holder 61 is attached to the mouth plate 3 as shown in FIG. 9 of the fourth embodiment.
Of the guide plate 27 on the side of the lid 4 and the movable track of the mouth plate 3 or the holder 61.
The mouth plate 3 or the holder 61 was installed in a position where the movable plate of the contact portion 28 intersected with each other could be regulated.
The other configuration is similar to that of the first embodiment described above.

In the electric vacuum cleaner according to the fifth embodiment, the dust bag 1 is placed in the dust collection chamber 7 so that the insertion guide 71 comes to the mouth plate 3 of the dust bag 1 or the back side of the holder 61.
When it is inserted into the inside, the mouth plate 3 or the holder 61 abuts on the insertion guide 71, or drifts between the insertion guide 71 and the seal member 6, in other words, within the range where the above-mentioned movable trajectories intersect. Will be placed. Therefore, when the lid 4 is closed, the contact portion 28 of the guide member 27 always contacts the upper side of the mouth plate 3 or the back side of the holder 61 and picks up this.
Move to the seal member 6 side. Then, as in the case of the first embodiment described above, the mouth plate 3 or the holder 61 contacts the contact surface 2 of the clamp member 24 from the middle of this movement path.
In the state of contacting with 4a as well, the surface of the contact portion 28 of the guide member 27 and the contact surface 24a of the clamp member 24 are slid and moved to the seal member 6 side. Clamping member 24 when the opening is closed
Over the hook 24b of the mouth plate 3 or the holder 6
At the same time that the front surface of 1 contacts the seal member 6, the upper side of the mouth plate 3 or the back surface of the holder 61 engages with the hook 24b and is pressed from the rear side, and the contact state with the seal member 6 is held and fixed. . Therefore, the dust collecting bag 1 is reliably mounted in the dust collecting chamber 7.

Embodiment 6. 11 is an enlarged perspective view showing a mouth plate insertion guide which is a main part of the electric vacuum cleaner according to claim 4 of the present invention, and FIG. 12 is a side sectional view showing an enlarged mouth plate mounting portion. In each figure, the same parts as those in the first embodiment described above are designated by the same reference numerals. In addition, also in the explanation here, the first
Reference is made to FIG. 1 used in the embodiment.

In the vacuum cleaner of the sixth embodiment, an insertion guide 81 for guiding the mouth plate 3 of the dust collecting bag 1 into the bottom portion 8a of the front wall 8 is basically arranged as shown in FIG. It is formed in a U-shaped cross section, and is arranged so that the U-shaped groove 83 faces the concave portion of the front wall bottom portion 8a and the front surface of the mouth plate 3 does not interfere with the contact with the seal member 6. , One end thereof is attached to the rear edge of the bottom portion 8a of the front wall 8 in the dust collecting chamber 7 of the cleaner body 21 by the hinge 82, and the mouth plate 3 of the dust bag 1 is inserted into the bottom portion 8a of the front wall 8. In doing so, the side portion of the mouth plate 3 is inserted into the U-shaped groove 83.

Further, as shown in FIG. 12, a stopper 84 for restricting the rearward swinging amount of the insertion guide 81 is provided at a position behind the insertion guide 81 in the dust collection chamber 7 and not in contact with the dust collecting bag 1. Is.

In the vacuum cleaner of the sixth embodiment,
In the insertion guide 81, the width of the groove 83 is set to be slightly larger than the thickness of the mouth plate 3 or the thickness of the holder 61 when the holder 61 is attached to the mouth plate 3 as shown in FIG. 9 of the fourth embodiment. Groove width and stopper 84
Is set to a position where the mouth plate 3 or the holder 61 can be restricted within a range where the movable trajectory of the mouth plate 3 or the holder 61 and the movable trajectory of the contact portion 28 of the guide member 27 on the lid 4 side intersect. Set. The other configuration is similar to that of the first embodiment described above.

In the vacuum cleaner of the sixth embodiment, the mouth plate 3 or the holder 61 is provided with the groove 8 of the insertion guide 81.
When the lid 4 is closed, it is supported by inner walls on both sides of the guide member 3 and moves integrally between the stopper 84 and the seal member 6, in other words, within the range where the above-mentioned movable tracks intersect. The abutting portion 28 of the 27 is the mouth plate 3 or the holder 61.
Of the insertion guide 81
At the same time, it is moved to the seal member 6 side. Then, as described in the first embodiment, from the middle of this moving path, the mouth plate 3 or the holder 61 is in contact with the contact surface 24a of the clamp member 24, and the guide member 27 contacts the contact surface 24a. While sliding on the surface of the contact portion 28 and the contact surface 24a of the clamp member 24, the clamp member 24 moves to the seal member 6 side together with the insertion guide 81, and the opening of the cleaner body 21 is closed by the lid 4. At the same time as the hook 24b is overcome and the front surface of the mouth plate 3 or the holder 61 contacts the seal member 6, the upper side of the back surface of the mouth plate 3 or the holder 61 engages with the hook 24b and is pressed from the rear side. The contact state with 6 is held and fixed. For this reason,
The dust collecting bag 1 is securely mounted in the dust collecting chamber 7.

After the dust collecting bag 1 is mounted in the dust collecting chamber 7, the insertion guide 81 and the mouth plate 3 or the holder 61 are not separated from each other. When the dust collecting bag 1 is swung to the 1st side and does not come into contact with the dust collecting bag 1 when it swells, accidents such as breaking of the dust collecting bag 1 by the insertion guide 81 can be prevented, and dust leakage can be prevented. You can

As shown in FIG. 12, even when the lid 4 is opened and closed and the dust collecting bag 1 is attached and detached with the suction port 9 facing upward, the insertion guide 81 is supported by the stopper 84 and moves downward. As a result, the mouth plate 3 does not fall off the insertion guide 81 and the guide member 27 does not come into contact with the mouth plate 3 or the holder 61.

Embodiment 7. FIG. 13 is a side sectional view showing, in an enlarged manner, a mouth plate mounting portion which is a main part of the electric vacuum cleaner according to claim 4 of the present invention,
In the figure, the same parts as those in the above-described sixth embodiment are designated by the same reference numerals.

The electric vacuum cleaner according to the seventh embodiment has a hinge 82 portion of an insertion guide 81A with a groove 83 for guiding the mouth plate 3 of the dust collecting bag 1 into the concave bottom portion 8a of the front wall 8 in the opposite direction. On the side, a spring seat piece 9 extending into the concave bottom 8a of the front wall 8
1, the spring 92 is stretched between the spring seat piece 91 and the bottom portion 8a of the front wall 8, and the insertion guide 81A is always provided on the side of the shaft-shaped stopper 84 which is laterally arranged behind the insertion guide 81A. The point that it is biased is different from that of the above-described sixth embodiment, and the other configuration, that is, the installation positions and attachment modes of the insertion guide 81A and the stopper 84 are the same as those of the above-described sixth embodiment. It is the same.

In the electric vacuum cleaner of the seventh embodiment,
Since the operation after inserting the mouth plate 3 or the holder 61 described in FIG. 9 into the insertion guide 81A is the same as that of the sixth embodiment described above, the description thereof is omitted here.

In the electric vacuum cleaner according to the seventh embodiment, the insertion guide 81A is constantly stopped by the spring 92 so that the stopper 8 is held.
Since the lid 4 is biased to the 4 side, when the lid 4 is opened, the insertion guide 81A moves away from the seal member 6 side to the stopper 84 side and abuts, and is held in this state to define the position. Therefore, the dust bag 1 can be easily taken out.

When the dust bag 1 is attached to the insertion guide 81A, the insertion guide 81A is in contact with the stopper 84 side and is held by the spring force so that the position is regulated. The attachment to the guide 81A becomes easy.

As described above, in the seventh embodiment, the dust bag 1 can be attached and detached at a position where a working space can be easily secured at any time, so that the usability is improved. Further, since the mouth plate 3 is separated from the sealing member 6 when the dust bag 1 is taken out,
There is no frictional resistance due to rubbing with the seal member 6, and it can be taken out with a light operating force, and the seal member 6 has no wear and has a long life.

Embodiment 8. FIG. 14 is a perspective view showing the relationship between the mouth plate of the dust collecting bag 1 and the holder thereof, which is the main part of the vacuum cleaner according to claim 4 of the present invention, and is the same as the above-described first embodiment in the drawing. The same reference numerals are given to the parts. In addition, also in this case, reference is made to FIG. 1 used in the first embodiment described above.

In the vacuum cleaner of the eighth embodiment, a holder 101 having a U-shaped frame for covering both the front and back surfaces of the lower edge portion and both side edge portions is attached to the mouth plate 3 of the dust collecting bag 1. The dust bag 1 together with the holder 101 is mounted in the dust collection chamber 7 of the cleaner body 21, so that the mouth plate 3 is deformed at the time of mounting or the warp of the mouth plate 3 is already deformed before the mounting. It is designed to be able to correct.

More specifically, the holder 101 is
Left and right vertical walls are made up of concave left and right vertical walls 102 and 103 that are set to be longer than the side edges of the mouth plate 3 and have openings facing inward, and concave lower horizontal walls 104 that also have openings facing inward. 102 and 103 are set so as to extend onto the track of the guide member 27 when the lid 4 is closed. The other configuration is similar to that of the first embodiment described above.

In the vacuum cleaner of the eighth embodiment,
The vertical warp of the mouth plate 3 is caused by the inner walls of the left and right vertical walls 102 and 103, and the lateral warp of the mouth plate 3 is caused by the lower lateral wall 10.
It is corrected by the inner walls of 4. Therefore, the contact load received from the contact portion 28 of the guide member 27 on the lid 4 side and the load received from the hook 24b of the clamp member 24 when the dust bag 1 is mounted in the dust collection chamber 7 are also left and right vertical walls. 10
2, 103 and the lower lateral wall 104 can be supported and deformation of the mouth plate 3 can be prevented.

Further, since the lengths of the left and right vertical walls 102, 103 are set to be longer than the sides of the mouth plate 3, the position of the guide member 27 on the lid 4 side is set on the left and right vertical walls 102, 103. At the position corresponding to either one or the left and right vertical walls 102, 10
By installing a pair of guide members 27 corresponding to each of the three, the seal member 6 by engagement with the guide member 27.
The holder 101 can be caused to perform a sliding movement to the side. Furthermore, the position of the clamp member 24 is also the left and right vertical walls 10.
If installed so as to correspond to one or both of 2, 103, the holder 101 can be caused to engage with the clamp member 24. Even in this case, it goes without saying that the mouth plate 3 and the sealing member 6 come into contact with each other when the dust collecting bag 1 is completely attached. As a result, the contact between the guide member 27 and the clamp member 24, which greatly affects the deformation of the mouth plate 3 which is generally made of paper, can be completely cut off, and the deformation of the mouth plate 3 can be completely prevented. Reliability is improved by preventing defects.

In each of the fifth to eighth embodiments described above, the method of swinging movement as the insertion guide has been described as an example, but the method of linear movement toward the seal member is adopted. It is also possible to do so, and even in such a case, the same effect as that of each of the above-described embodiments can be obtained.

In each of the sixth and seventh embodiments described above, the stopper for restricting the swinging amount of the insertion guide has been described by exemplifying the one in which the shaft member is laterally arranged behind the insertion guide. Any mechanism may be used, such as setting this on the hinge portion of the insertion guide. Whichever is adopted, it is desirable to install it so as not to contact the dust bag.

[0063]

As described above, according to the first aspect of the invention, the tip of the clamp member for elastically holding the mouth plate of the dust bag extends from the engaging portion with the mouth plate side. A contact surface that abuts on the peripheral side of the front face of the mouth plate and slides and guides it to the locking part while being driven by the contact pressure from the mouth plate side. Occasionally, a contact part that comes into contact with the peripheral side of the rear face of the mouth plate and is slidably guided from a position away from the clamp member to a position where it can contact the contact surface of the clamp member and to the locking part of the clamp member. Since the guide member is provided, the dust bag can be reliably attached even when the mouth plate is completely separated from the clamp member before the lid is closed. Therefore, the erroneous mounting of the dust collecting bag does not occur, the dust does not spill into the dust collecting chamber, is not sucked by the electric blower, and does not malfunction, and the usability is improved.

According to the second aspect of the present invention, the dust backflow preventing holder is provided on the mouth plate of the dust collecting bag, in which at least the contact portion with the guide member and the clamp member projects outward from the periphery of the mouth plate. The dust bag together with the holder is mounted in the dust collection chamber of the cleaner body, and the dust bag comes into contact with the clamp member and the guide member via the holder. It is possible to prevent deformation of the mouth plate without contact with the mouth plate, and to prevent dust from leaking from the mouth plate portion.

According to the third aspect of the present invention, a holder comprising a U-shaped frame that covers at least the entire length of the front and back surfaces of the lower edge portion and both side edge portions is attached to the mouth plate of the dust collecting bag. Along with mounting the dust collection bag inside the dust collection chamber of the cleaner body, the dust collection bag is configured to abut the clamp member and the guide member via the holder, so deformation of the mouth plate during mounting and mounting It is possible to correct the warp of the mouth plate which has already been deformed before. Therefore, even if the mouth plate is deformed, the dust collecting bag can be reliably mounted in the dust collecting chamber.

Further, according to the invention of claim 4 , a movable insertion guide for supporting and guiding the mouth plate when the dust bag is inserted into the dust collecting chamber is provided in the dust collecting chamber of the cleaner body. Therefore, even if the dust bag is randomly put in the dust collection chamber, it can be securely attached.

[Brief description of drawings]

FIG. 1 is a side sectional view showing an overall configuration of an electric vacuum cleaner according to a first embodiment of the present invention.

FIG. 2 is a side sectional view of an essential part for explaining the operation of the electric vacuum cleaner according to the first embodiment.

FIG. 3 is a side sectional view of an essential part for explaining the operation of the electric vacuum cleaner according to the first embodiment.

FIG. 4 is a side sectional view of an essential part for explaining the operation of the electric vacuum cleaner according to the first embodiment.

FIG. 5 is an enlarged perspective view showing a guide member portion of a lid, which is a main part of an electric vacuum cleaner according to a second embodiment of the present invention.

FIG. 6 is an enlarged perspective view showing a clamp member of the electric vacuum cleaner according to the second embodiment.

FIG. 7 is an enlarged perspective view showing an example of a guide member portion of a lid which is a main part of an electric vacuum cleaner according to a third embodiment of the present invention.

FIG. 8 is an enlarged perspective view showing another example of the guide member portion of the lid, which is a main part of the electric vacuum cleaner according to the third embodiment.

FIG. 9 is a side cross-sectional view showing the relationship between the mouth plate of the dust bag and the holder thereof, which is a main part of the vacuum cleaner according to the fourth embodiment of the present invention.

FIG. 10 is a side sectional view showing, in an enlarged manner, a mouth plate attachment portion that is a main part of an electric vacuum cleaner according to a fifth embodiment of the present invention.

FIG. 11 is an enlarged perspective view showing a mouth plate insertion guide that is a main part of an electric vacuum cleaner according to a sixth embodiment of the present invention.

FIG. 12 is a side cross-sectional view showing an enlarged mouth plate attachment portion of the electric vacuum cleaner according to the sixth embodiment.

FIG. 13 is a side sectional view showing, in an enlarged manner, a mouth plate attachment portion which is a main part of an electric vacuum cleaner according to a seventh embodiment of the present invention.

FIG. 14 is a perspective view showing a relationship between a mouth plate of a dust bag which is a main part of an electric vacuum cleaner according to an eighth embodiment of the present invention and a holder thereof.

FIG. 15 is a side sectional view showing the vicinity of the suction port of the conventional electric vacuum cleaner with the lid opened.

FIG. 16 is a side sectional view showing the vicinity of the suction port of the conventional electric vacuum cleaner with the lid closed.

[Explanation of symbols]

1 Dust Collection Bag, 3 Dust Collection Bag Mouth Plate, 4 Lid, 6 Sealing Member, 7 Dust Collection Chamber, 9 Dust Collection Chamber Suction Port, 21 Vacuum Cleaner Main Body, 24 Clamping Member, 24a Clamping Member Abutting Surface , 24b Hook (locking part) of the clamp member, 26
Torsion spring, 27, 27A, 27B, 27C Guide member, 28, 28A, 28B, 28C Contact portion of guide member, 61 Dust backflow prevention holder, 71, 81, 81
A Insertion guide, 83 Insertion guide groove, 101 Holder consisting of U-shaped frame.

─────────────────────────────────────────────────── ─── Continuation of the front page (58) Fields surveyed (Int.Cl. ⁷ , DB name) A47L 9/14

Claims (4)

(57) [Claims] 1. A vacuum cleaner main body is provided with a dust collection chamber that is opened and closed by a lid, a dust collection bag with a flat mouth plate is housed in the dust collection chamber, and a seal provided around the suction port of the dust collection chamber. In a vacuum cleaner in which a member and a front surface of the mouth plate are brought into contact with each other and the state is elastically held by a clamp member, the clamp member extends from a locking portion with the mouth plate side, An abutment surface is provided that abuts from the tip portion to the peripheral side of the front face of the mouth plate and is slidably guided to the locking portion while being driven by the contact pressure from the mouth plate side, and on the inner surface of the lid body. , When the lid is closed, it abuts on the peripheral side of the rear face of the mouth plate, and slides from a position distant from the clamp member to a position where it can abut the abutment surface of the clamp member to the locking portion of the clamp member. A guide member having a guideable contact portion is provided. Care vacuum cleaner. 2. A dust backflow prevention holder is attached to the mouth plate of the dust bag so that at least the contact portion with the guide member or the clamp member projects outwardly from the periphery of the mouth plate, and the dust collection is carried out together with the holder. While installing the bag in the dust collection chamber of the vacuum cleaner body,
The vacuum cleaner according to claim 1, wherein the dust bag is configured to abut the clamp member and the guide member via the holder. 3. A holder comprising a U-shaped frame that covers at least the entire length of the front and back surfaces of the lower edge portion and both side edge portions of the mouth plate of the dust collecting bag, and the dust collecting bag together with the holder. 2. The electric vacuum cleaner according to claim 1, wherein the dust collecting bag is mounted in the dust collecting chamber, and the dust collecting bag is in contact with the clamp member and the guide member via the holder. 4. A movable insertion guide for supporting and guiding the mouth plate when the dust bag is inserted into the dust collecting chamber is provided in the dust collecting chamber of the cleaner body. The vacuum cleaner according to claim 3.