JP3540620B2 - Electric vacuum cleaner - Google Patents

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a vacuum cleaner. More particularly, the present invention relates to a vacuum cleaner having a basket for mounting a paper pack inside a dust collection chamber of a vacuum cleaner body.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, various vacuum cleaners in which a paper pack is mounted inside a dust collection chamber have been proposed. In particular, in recent years, a vacuum cleaner having a basket for mounting a paper pack is provided inside the dust collection chamber so that the paper pack can be easily attached to and detached from the dust collection chamber.
[0003]
As shown in FIG. 11, a conventionally used basket has a box shape so that dust can be collected inside the basket even when a paper pack is not mounted. Rubber packing for prevention is provided. In addition, large openings are formed in the side wall and the bottom surface of the basket, and a filter or the like is attached thereto.
[0004]
With a vacuum cleaner equipped with such a basket, when cleaning and discarding the paper pack, remove the basket from the dust collection chamber, remove the paper pack fixing clamp on the trash can, and turn the basket upside down. Discard the paper pack. Even when a paper pack is not used, the basket is taken out of the dust collection chamber and discarded when discarding garbage.
[0005]
[Problems to be solved by the invention]
However, in the conventional vacuum cleaner, when the basket is attached to the dust collecting chamber, the flat outer peripheral surface of the packing at the upper edge of the basket needs to be in close contact with the inner wall of the dust collecting chamber of the vacuum cleaner main body. In this case, the front, rear, left and right positions must be roughly adjusted, the basket must be inserted into the dust collection chamber by hand, and the basket must be pushed down to a predetermined position, and it is difficult to set the basket with one touch.
[0006]
If there is no basket at a predetermined position (especially at a predetermined height), the hose insertion port of the vacuum cleaner body and the basket suction port are misaligned, so that the hose cannot be inserted or dust may leak. There is a problem.
[0007]
Further, even when the basket is taken out, there is a problem that the packing of the basket is in close contact with the main body of the vacuum cleaner, so that it cannot be easily removed with one touch.
[0008]
The present invention has been made in order to solve such a problem, and an object of the present invention is to provide a vacuum cleaner capable of easily and reliably mounting and removing a basket.
[0009]
[Means for Solving the Problems]
The vacuum cleaner of the present invention is provided with a wheel at a lower portion of the cleaner body, has an electric blower and a dust collection chamber inside the cleaner body, and has an exhaust port communicating with the electric blower on an inner wall on the rear side of the dust collection chamber. A vacuum cleaner formed with
A basket for forming a lid for opening and closing the dust collecting chamber at an upper portion of the cleaner body, forming a suction port for connecting a hose to a front surface of the cleaner body, and detachably mounting a paper pack inside the dust collecting chamber. The basket is provided with a connection port connected to the suction port of the cleaner body on the front wall, and a guide mechanism for preventing the basket from tilting when the basket is mounted in the dust collection chamber is provided on the front wall. A front / rear / up / down positioning mechanism for positioning the basket in the front / rear and up / down directions when mounting the basket at a predetermined position inside the dust collection chamber is provided at an upper portion of a front wall of the basket. It is characterized by comprising a rib extending downward and a rib extending upward from the upper end of the front wall of the dust collection chamber and abutting on the rib of the basket to position the basket .
[0011]
It is preferable that an inclined portion gradually inclined toward the front side of the cleaner body is formed on a rear surface side of the downwardly extending rib toward a lower end of the rib.
[0012]
In addition, the vacuum cleaner of the present invention is provided with wheels at a lower portion of the cleaner body, has an electric blower and a dust collection chamber inside the cleaner body, and communicates with the electric blower on an inner wall surface on the rear side of the dust collection chamber. A vacuum cleaner having an exhaust port,
A basket for forming a lid for opening and closing the dust collecting chamber at an upper portion of the cleaner body, forming a suction port for connecting a hose to a front surface of the cleaner body, and detachably mounting a paper pack inside the dust collecting chamber. The basket is provided with a connection port connected to the suction port of the cleaner body on the front wall, and a guide mechanism for preventing the basket from tilting when the basket is mounted in the dust collection chamber is provided on the front wall. And a front / rear / up / down positioning mechanism for positioning the basket in the front / rear and up / down directions when the basket is mounted at a predetermined position inside the dust collection chamber, a concave or convex portion formed outside the basket. And a convex portion or a concave portion provided on the bottom surface of the dust collecting chamber and positioning the basket by fitting the concave portion or the convex portion.
[0014]
BEST MODE FOR CARRYING OUT THE INVENTION
Next, the vacuum cleaner of the present invention will be described in detail with reference to the drawings. FIG. 1 is an explanatory perspective view of a vacuum cleaner main body according to an embodiment of the present invention in a state where a lid of the vacuum cleaner body is opened, FIG. 2 is an enlarged perspective view of the basket of FIG. 1, and FIG. 3 is a basket of FIG. 4, FIG. 4 is a side view of the basket of FIG. 1, FIG. 5 is a plan view of the basket of FIG. 1, FIG. 6 is a sectional explanatory view showing a state where a paper pack is mounted on the basket of FIG. 1, and FIG. 1 is a partially cutaway side view in a state where a basket and a paper pack are mounted on the cleaner body of FIG. 1, FIG. 8 is a partially cutaway plan view in a state where a basket is mounted on the cleaner body of FIG. 1, and FIG. 9 is a cleaner body of FIG. FIG. 10 is a cross-sectional explanatory view showing the front / rear / up-down positioning mechanism, and FIG. 10 is a cross-sectional explanatory view showing a state of sealing by packing in the basket of FIG.
[0015]
The vacuum cleaner shown in FIG. 1 and FIGS. 7 and 8 has an electric blower 2 and a dust collection chamber 3 inside a cleaner main body 1, and a paper pack 4 (see FIG. 7) inside the dust collection chamber 3. ) Is detachably provided.
[0016]
A lid 6 for opening and closing the dust collection chamber 3 is provided at an upper portion of the cleaner body 1. Wheels 7 are provided below the cleaner body 1 so that the cleaner body 1 can be moved by rolling on the floor. Further, a suction port 1a is opened on the front surface of the cleaner body 1, and a hose or the like (not shown) is connected to the suction port 1a. An exhaust port 3 b communicating with the electric blower 2 is formed on an inner wall surface (rear wall) 3 a on the rear side of the dust collection chamber 3.
[0017]
As shown in FIGS. 2 to 6, the basket 5 has a substantially box shape with an upper portion and a rear portion opened, and has a rear opening as an outlet 9. An upright wall (rear wall) 8 is formed at the lower opening edge of the outlet 9. The basket 5 is made of a synthetic resin or the like. Further, the basket 5 has a handle 16 for pulling out and transporting the basket 5, a clamp 17 for fixing the paper pack 4, and a seal for the basket 5 with respect to the cleaner body 1 and the paper pack 4. Is provided.
[0018]
In the present embodiment, as shown in FIG. 10, a connection port 13 connected to the suction port 1 a of the cleaner body 1 is formed on the front wall 12 of the basket 5. A packing 14 is provided on the peripheral edge of 13.
[0019]
The packing 14 shown in FIGS. 3, 6 and 10 is fitted to an annular ring portion 14 a having a semicircular cross section which comes into contact with the fixing plate 10 and the inner peripheral surface of the connection port 13 into which the hose is inserted. An annular fitting portion 14b, a valve portion 14c for opening and closing the connection port 13 and an annular ring portion 14d having a semi-circular cross-section to contact the inner surface of the front wall 3c of the dust collecting chamber 3. Have been.
[0020]
Since the ring portion 14a contacts the fixed plate 10 without any gap, the space between the front wall 12 and the fixed plate 10 is hermetically sealed. At the same time, the ring 14d comes into contact with the inner wall of the dust collecting chamber 3 without any gap, so that the space between the inner wall of the dust collecting chamber 3 and the front wall 12 is hermetically sealed.
[0021]
As shown in FIGS. 2 and 6, when the paper pack 4 is set in the basket 5, the fixing plate 10 fixed to the paper pack 4 may be fitted between the groove 15 and the clamp 17. Conversely, when taking out and discarding the paper pack 4, it is only necessary to rotate the clamp 17 upward.
[0022]
The basket 5 of the present embodiment is based on the premise that the paper pack 4 is attached and used, the packing 42 (see FIG. 11) provided on the upper edge of the conventional basket 41 is eliminated, and the basket 5 is not used. A gap 24 (see FIG. 8) is formed between the side wall 11 of the basket 5. In addition, when the basket 5 is released from a certain position (height), the basket 5 slides into a predetermined position inside the dust collecting chamber 3 of the vacuum cleaner main body. Is provided.
[0023]
By adopting such a structure, the basket 5 can be easily and securely attached to a predetermined position without completely pushing the basket 5 into the dust collecting chamber 3 of the cleaner body 1, and the basket 5 can be taken out by holding the handle 16. It can be easily lifted.
[0024]
Hereinafter, the front / rear / up / down positioning mechanisms 31 and 32 will be described more specifically.
[0025]
As shown in FIG. 9, the first front-rear / up-down positioning mechanism 31 includes a rib 33 extending downward from a handle 16 provided on the front wall 12 of the basket 5 and the dust collection for guiding the basket 5. And a rib 34 extending upward from the upper edge of the front wall 3c of the chamber 3. An inclined portion 33a is formed on the rear surface side (basket 5 side) of the rib 33 toward the lower end of the rib 33, and is gradually inclined toward the front side of the cleaner main body 1. 5 is pressed toward the suction port 1a.
[0026]
On the other hand, the second front / rear / up / down positioning mechanism 32 includes a concave portion 35 formed outside the bottom wall 25 of the basket 5 and a rib 36 extending upward from a bottom surface 37 of the dust collecting chamber 3. On the front side (suction port 1a side) of the rib 36, an inclined portion 36a which is gradually inclined rearward of the cleaner body 1 toward the upper end of the rib 36 is formed. With the insertion, the basket 5 is gradually pressed toward the suction port 1a.
[0027]
When the basket 5 is inserted, the insertion starts with a slight gap between the suction port 1a and the packing 14 of the basket 5 due to the inclined portions 33a and 36a. Since the movement is such that the packing 14 is pressed, it is possible to prevent the packing 14 from being turned up as compared with a case where the suction port 1a is vertically inserted while the packing 14 of the basket 5 is in contact with the suction port 1a.
[0028]
With this configuration, first, the first front-rear / up-down positioning mechanism 31 positions the basket 5 and the cleaner body 1 in the front-rear and up-down directions. The ribs 33 on the basket 5 side sandwich the ribs 34 on the front wall 3c of the dust collection chamber 3, thereby preventing the basket 5 from being pulled toward the electric blower 2 during operation of the electric blower 2.
[0029]
The first front / rear / up / down positioning mechanism 31 may be a combination of the rib 33 and the rib 34 as in the present embodiment, or may be a combination of a protrusion and a hole.
[0030]
The positioning in the front-rear direction is performed by the second front-rear / up-down positioning mechanism 32 in addition to the first front-rear-up / down positioning mechanism 31 so that the ribs 36 on the bottom surface 37 of the dust collecting chamber 3 are located outside the bottom wall 25 of the basket 5. By fitting into the recess 35, the basket 5 and the cleaner main body 1 are positioned in the front-back and up-down directions. Further, the second front / rear / up / down positioning mechanism 32 can prevent the basket 5 from being pulled toward the electric blower 2 during the operation of the electric blower 2 as described above.
[0031]
The second front / rear / up / down positioning mechanism 32 may be arranged in a reversed manner, for example, by forming a concave portion on the bottom surface 37 of the dust collecting chamber 3 and providing a convex portion on the outside of the bottom wall 25 of the basket 5. Good.
[0032]
If two positioning mechanisms are provided as in the above-described front / rear / up / down positioning mechanisms 31 and 32, the positioning and holding are performed at two upper and lower portions of the basket 5, so that the positioning / holding effect is very high. Even if one of the front-rear / upper / lower positioning mechanism 31 or the second front-rear / upper / lower positioning mechanism 32 is provided, a sufficient positioning / holding effect can be obtained. Moreover, the convenience of attaching and detaching the basket 5 can be greatly improved as compared with the conventional basket.
[0033]
Further, in the conventional basket, when positioning by contacting the front wall 3c and the rear wall 3a of the dust collection chamber 3 before and after the basket 5, the size error before and after the basket 5 is large because the size before and after the basket 5 is large. Therefore, the reliability (reliability) of the seal could not be obtained. On the other hand, in the present embodiment, by positioning the basket 5 at the front of the basket 5 by the front / rear / up / down positioning mechanisms 31, 32, positioning is performed at a position where the dimension (distance) with respect to the cleaner body 1 is short. Thus, the sealing performance can be reliably improved.
[0034]
When the electric blower 2 is driven, a force is applied to pull the basket 5 toward the electric blower 2. However, since the basket 5 is locked at two upper and lower positions in front of the basket 5 near the inlet 1 a, the basket 5 is It is possible to prevent a decrease in sealing performance caused by a deviation from a predetermined position.
[0035]
Further, as shown in FIG. 9, in order to guide the rear side of the basket 5, a curved surface portion 39 on the rear surface of the basket 5 and a guide rib 40 protruding from the rear wall 3 a of the dust collection chamber 3 are provided. Since the basket 5 is provided in the dust collecting chamber 3, the basket 5 can be prevented from tilting.
[0036]
The packing 14 of the present embodiment is significantly different from the conventional packing 43 shown in FIG. 11 in that it has a ring portion 14d.
[0037]
In the present embodiment, the seal between the basket 5 and the cleaner main body 1 can be performed by the ring portion 14d shown in FIG. Moreover, the attachment and detachment of the basket 5 is easier than in the case where the packing 42 (see FIG. 11) at the upper edge of the conventional basket is provided.
[0038]
Moreover, since the ring portion 14d has a semicircular cross section, the ring portion 14d can be prevented from being turned up or caught when the basket 5 is attached or detached, and the seal between the basket 5 and the vacuum cleaner main body 1 can be reliably formed. Can do it.
[0039]
Further, as shown in FIGS. 3, 6, and 10, the basket 5 is provided with the rib 5a for receiving the semicircular maximum outer peripheral portion 14e of the ring portion 14d of the packing 14, so that the ring portion 14d is provided. It can prevent turning over and catching.
[0040]
As described above, by providing the annular ring portions 14a and 14d having a semicircular cross-sectional shape on the front and back of the packing 14, the convenience of attaching and detaching the basket 5 is not lost, and the sealing is reliably performed. it can.
[0041]
In addition, as shown in FIG. 10, the basket 5 is inserted with a gap 44 between the basket 5 and the cleaner body 1, and the basket 5 is finally cleaned by the inclined portion 33a of the rib 33. The sealing performance can be improved by pressing against the main body 1.
[0042]
Further, in the present embodiment, a handle 16 and the clamp 17 are provided on the front wall 12 of the basket 5. Specifically, a handle 16 having an arched shape is fixed to the front wall 12 of the basket 5 by claws 18 (see FIG. 3) projecting downward from both ends of the handle 16. Inside the space surrounded by the handle 16, a clamp 17 is swingably mounted by a pair of shafts 19 (see FIG. 3) projecting from both sides. As shown in FIG. 6, the clamp 17 is constantly urged by a spring 20 in a direction to clamp the fixed plate 10.
[0043]
With such a structure, when the paper pack 4 is discarded, it is performed as follows. First, with the paper pack 4 attached to the basket 5, the basket 5 is pulled out from the cleaner body 1 with the handle 16, and the clamp 17 on the front wall 12 is rotated upward while holding the handle 16 with the hand. Remove it. In this embodiment, the rear surface of the basket 5 is lowered when the handle 16 is held because the rear surface of the box-shaped basket 5 is the outlet 9 and the handle 16 is attached to the front end of the basket 5. As a result, the paper pack 4 can be easily disposed of by natural fall. Therefore, the paper pack 4 can be easily discarded without turning the basket 5 upside down while holding the handle 16 by hand. In addition, the clamp 17 can be operated with one hand with the hand holding the handle 16, which is convenient.
[0044]
On the other hand, when replacing the paper pack 4, the paper pack 4 can be mounted on the basket 5 outside the cleaner main body 1, and then the basket 5 can be easily mounted on the cleaner main body 1 by holding the handle 16. it can.
[0045]
Further, in the related art, when a basket with a filter is used without a paper pack, suction performance has been reduced due to clogging of the filter due to dust or the like.In the present embodiment, however, in order to prevent a reduction in suction performance, 2 and 4, at least one ventilation opening 22 is formed in at least the side wall 11 of the basket 5 on the assumption that the paper pack 4 is used.
[0046]
As shown in FIG. 8, a slight gap 24 is formed between the basket 5 and the inner side wall 23 of the dust collecting chamber 3 of the cleaner body 1. Therefore, the opening 22 of the side wall 11 of the basket 5 communicates with the electric blower 2 through the gap 24 and the exhaust port 3b. With such a configuration, a flow path of air to the opening 22 is secured, so that the air can be uniformly sucked into the inside of the paper pack 4 and dust can be accumulated not only on the rear surface but also on the side surface of the paper pack 4, thereby reducing the suction performance. Can be prevented.
[0047]
The opening 22 can be formed in the bottom wall 25 of the basket 5 shown in FIG. 2 and FIGS. 7 and 8. In this case as well, it is possible to prevent a decrease in suction performance as described above. Instead of forming the opening 22, as shown in FIGS. 2 and 7 to 8, if a sheet-like projection 26 for preventing the close contact between the paper pack 4 and the bottom wall 25 is protruded, the collection from the basket 5 is performed. It is possible to prevent the suction performance from lowering without spilling dust or dirt into the dust chamber 3.
[0048]
【The invention's effect】
According to the present invention, the provision of the front / rear / up / down positioning mechanism for the basket enables the basket to be attached and detached easily and reliably.
[Brief description of the drawings]
FIG. 1 is a perspective explanatory view showing a vacuum cleaner body according to an embodiment of the present invention in a state where a lid of a vacuum cleaner body is opened.
FIG. 2 is an enlarged perspective view of the basket of FIG.
FIG. 3 is a front view of the basket of FIG. 1;
FIG. 4 is a side view of the basket of FIG. 1;
FIG. 5 is a plan view of the basket of FIG. 1;
FIG. 6 is an explanatory sectional view showing a state where a paper pack is mounted on the basket of FIG. 1;
7 is a partially cutaway side view in a state where a basket and a paper pack are mounted on the cleaner body of FIG. 1;
FIG. 8 is a partially cutaway plan view showing a state where a basket is mounted on the cleaner body of FIG. 1;
FIG. 9 is an explanatory cross-sectional view showing a front / rear / up / down positioning mechanism of the cleaner body of FIG. 1;
FIG. 10 is an explanatory sectional view showing a state of sealing by packing in the basket of FIG. 1;
11 is an explanatory cross-sectional view showing a state of sealing by a conventional packing which is a comparative example with respect to the packing of FIG.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Vacuum cleaner main body 2 Electric blower 3 Dust collection chamber 4 Paper pack 5 Basket 8 Rear wall 9 Outlet 31 First front / back / up / down positioning mechanism 32 Second front / back / up / down positioning mechanism

Claims (3)

An electric vacuum cleaner comprising: a wheel provided at a lower portion of a cleaner main body; an electric blower and a dust collecting chamber inside the cleaner main body ; and an exhaust port communicating with the electric blower formed on an inner wall surface on the rear side of the dust collecting chamber. hand,
A lid for opening and closing the dust collection chamber is formed at an upper portion of the cleaner body, and a suction port to which a hose is connected is formed on a front surface of the cleaner body,
A basket for detachably mounting a paper pack is detachably provided inside the dust collection chamber,
The basket has a front wall formed with a connection port connected to the suction port of the cleaner body, and a guide mechanism for preventing the basket from tilting when the basket is mounted in the dust collection chamber. A front / rear / up / down positioning mechanism for positioning the basket in the front / rear and up / down directions when mounted at a predetermined position inside the dust collection chamber, a rib extending downward provided on an upper front wall of the basket, A vacuum cleaner comprising a rib extending upward from an upper end of a front wall of a dust collecting chamber and positioning a basket by contacting the rib of the basket . Wherein the rear surface side of the rib extending downwards, gradually the vacuum cleaner vacuum cleaner according to claim 1, wherein the inclined portion inclined toward the front is formed in the main body towards the lower end of the rib. An electric vacuum cleaner comprising: a wheel provided at a lower portion of a cleaner main body; an electric blower and a dust collecting chamber inside the cleaner main body; and an exhaust port communicating with the electric blower formed on an inner wall surface on the rear side of the dust collecting chamber. hand,
A lid for opening and closing the dust collection chamber is formed at an upper portion of the cleaner body, and a suction port to which a hose is connected is formed on a front surface of the cleaner body,
A basket for detachably mounting a paper pack is detachably provided inside the dust collection chamber,
The basket has a front wall formed with a connection port connected to the suction port of the cleaner body, and a guide mechanism for preventing the basket from tilting when the basket is mounted in the dust collection chamber. A front / rear / up / down positioning mechanism for positioning the basket in the front / rear and up / down directions when mounted at a predetermined position inside the dust collection chamber; A vacuum cleaner comprising: a convex portion or a concave portion provided on a bottom surface of the basket for fitting the concave portion or the convex portion to position the basket .

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