JP4161786B2 - Vacuum cleaner - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a vacuum cleaner provided with a dust collecting part that can be removed from a main body.
[0002]
[Prior art]
The conventional vacuum cleaner with the dust collecting part removable from the main body has an air intake port communicating with the suction tool, an exhaust port communicating with the electric blower, and an air intake from the intake port and the exhaust port. Packing for performing air tight was provided, and the two packings were configured to be pressed in the inserted state (see, for example, Patent Document 1 and Patent Document 2). In addition, since the dust collecting portion storage portion is inserted into the dust collecting chamber, one surface is open, and the dust in the dust collecting portion can be visually observed with the dust collecting portion stored in the dust collecting portion storage portion. In some cases, a notch or a hole is formed on the side surface of the main body.
[0003]
[Patent Document 1]
JP-A-9-253011 [Patent Document 2]
JP 2000-342492 A [0004]
[Problems to be solved by the invention]
However, in such a vacuum cleaner having a detachable dust collecting portion, the dust collecting portion storage portion is configured to be open in order to insert the dust collecting chamber, and the dust collecting portion is collected. Since notches or holes are formed in the side surface of the main body so that the dust in the dust collecting portion can be visually observed in the state of being stored in the dust storage portion, there is a drawback that the rigidity of the main body itself is deteriorated and the strength is lowered.
[0005]
Further, when the dust collecting part is inserted into a predetermined position of the dust collecting part storage part in order to perform air tight, the packing is in a pressure contact state. For this reason, a very large force is required to attach and detach the dust collecting part, and there is a drawback in usability.
[0006]
This invention solves the said subject, and it aims at improving the detachability of a dust collection part while ensuring the intensity | strength of a main body in the vacuum cleaner provided with the detachable dust collection part.
[0007]
[Means for Solving the Problems]
In order to achieve the above object, the present invention includes an electric blower that emits suction air, a main body having a dust collecting portion that collects the sucked dust and is made of a visible material, and the dust collecting portion includes the main body. And the locking part A of the main body and the locking part B of the dust collecting part are connected to each other, and at least a part of the outer shell of the main body facing the dust collecting part is made visible. The dust collecting part has a sealing member for preventing leakage of air flowing into and out of the dust collecting part, and the sealing part when the locking part A and the locking part B are connected. When the member is attached to and detached from the dust collecting part , it is not in contact with the opposing part, and when sucked by the electric blower, it is a vacuum cleaner configured to contact the opposing part and perform air tight. Connected to the main body, and further, the dust collecting By forming at least a part of the outer shell of the main body facing the surface with a material having visibility, the rigidity of the main body can be increased, the strength can be improved, and the large dust collection section can be collected without removing the large dust collection section. The amount of dust generated can be confirmed and usability can be improved.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
The invention of claim 1, wherein the present invention is an electric blower which emits suction air, sucked dust was collected with a body having a dust collecting portion formed of a material having a visibility, the body of the dust collection unit And the locking part A of the main body and the locking part B of the dust collecting part are connected to each other, and at least a part of the outer shell of the main body facing the dust collecting part is made visible. The dust collecting part has a sealing member for preventing leakage of air flowing into and out of the dust collecting part, and the sealing part when the locking part A and the locking part B are connected. member, when the dust collecting unit detachably, not in contact with the facing part, when being sucked by the electric blower, which was constructed to be able to perform air tight contact with the opposite part, the rigidity of the body Can increase the strength and Can also be improved usability can be checked by the amount of dust collected in the dust collection unit without removing the a dust collection unit. In addition, it is possible to reduce the force required when attaching and detaching, and to further improve usability.
[0009]
【Example】
Hereinafter, an embodiment of the present invention will be described with reference to FIGS.
[0010]
In FIG. 1, a vacuum cleaner 1 has a suction tool 3 for sucking dust attached to an extension pipe 2, and the extension pipe 2 is connected to a vacuum cleaner main body 7 via a hand handle 4 and a hose 6 with a hose joint 5. (Hereinafter referred to as a main body 7). The main body 7 includes one front wheel caster 8 and a pair of rear wheels 9 that are pivotally supported.
[0011]
As shown in FIG. 2, the dust collecting portion storage portion 10 formed in the front of the main body 7 is sucked from the suction tool 3 in FIG. 1 and sucked in the extension pipe 2 and the hose 6 (not shown). The dust collecting part 11 which is a dust collecting part that separates and collects the dust that has passed through the main body 7 and is transferred to the main body 7 is detachably mounted. In addition, an electric blower 12 that emits suction air is incorporated behind the dust collection unit storage unit 10 of the main body 7. The suction side of the electric blower 12 communicates with the air suction portion 14 through the opening 13. The air suction portion 14 is surrounded by an inclined seal surface 15 that comes into contact with the dust collection portion 11 when the dust collection portion 11 is placed. An exhaust filter 16 is also provided behind the main body 7, and exhaust gas from the electric blower 12 that passes through the exhaust filter 16 is discharged to the outside of the main body 7. Further, the main body 7 has other parts, that is, an electric system such as a control unit 17 for controlling the power consumption of the electric blower 12, and a cord winding for winding the cord for supplying power to the electric blower 12 in the main body 7. A device (not shown) and the like are incorporated.
[0012]
The front wall 18 of the main body 7 rises from a bottom wall 19, and the bottom wall 19 is a lower end surface of the dust collection unit storage unit 10. An air inlet 20 for detachably connecting the hose joint 5 is provided at a substantially central portion of the front wall 18. The intake port packing 21 is attached to the end surface of the intake port 20 on the dust collection unit storage unit 10 side, and prevents air leakage between the intake port 20 and the dust collection unit 11. Tightness is further improved by forming a lip shape on the tight surface.
[0013]
As shown in FIGS. 2 and 3, the dust collector 11 includes a coarse dust storage chamber 22 that is provided below the dust collector 11 and collects coarse dust from the dust-containing airflow that has passed through the air inlet 20. The centrifuge chamber 23 is superposed on the coarse dust chamber 22 and is superposed on the upper side in this embodiment, and the centrifuge chamber 23 for separating fine dust from the airflow from which coarse dust is almost removed, and the centrifuge chamber 23. Are formed in parallel with the coarse dust storage chamber 22 and the fine dust storage chamber 24 for accumulating fine dust centrifuged in the centrifugal separation chamber 23 is formed. The fine dust storage chamber 24 is partitioned and partitioned from each other. A suction port 26 is formed in the dust collection unit front wall 25 of the dust collection unit 11, and one end of the suction port 26 is concentric with the suction port 20 when the dust collection unit 11 is set in the main body 7. The other end communicates with the coarse dust chamber 22.
[0014]
The coarse dust storage chamber 22 has a dust storage chamber lid 27 having a lid packing 31 for keeping the coarse dust storage chamber 22 and the fine dust storage chamber 24 at a negative pressure. It communicates with the centrifuge chamber 23 through a primary filter 32 which is dust collecting means. The primary filter 32 plays a role of collecting coarse dust in the coarse dust storage chamber 22 among suction air including dust flowing into the coarse dust storage chamber 22, whereby the coarse dust is stored in the coarse dust storage chamber 22. It is configured to accumulate in the chamber 22.
[0015]
A packing plate 35 is fitted on the outer periphery of the lid plate 34 having the dust collecting part air suction part 33 and is detachably attached by being attached to the intake side opening of the electric blower 12 of the dust collecting part 11 without any gap. It is done. The packing 35 is in a state where it is lightly pressure-bonded to the inclined sealing surface 15 when the dust collecting unit 11 is attached to the dust collecting unit storage unit 10, and prevents outside air from flowing into the air suction unit 14 from outside the main body 7. is doing.
[0016]
As shown in FIG. 4, the front wall 18 of the main body 7 is provided with a locking part A36, and the dust collecting part front wall 25 of the dust collecting part 11 is provided with a locking part B37, and the dust collecting part 11 is inserted into the dust collecting part 11. When fitted to the part 10, they are fitted together.
[0017]
Next, the operation and action of the above configuration will be described.
[0018]
When the electric blower 12 is in an operating state, the air flow including dust sucked from the suction tool 3 flows into the intake port 20 through the extension pipe 2 and the hose 6. This air flow passes through the suction port 26 and enters the coarse dust chamber 22 and then passes through the primary filter 32. Dust having a volume larger than the hole of the primary filter 32 is collected by the primary filter 32, and Accumulated in the coarse dust chamber 22. Further, dust having a volume smaller than that of the hole of the primary filter 32 passes through the communication port A30 one after another along with the air flow and enters the centrifugal separation chamber 23.
[0019]
The air that enters the centrifuge chamber 23 becomes a swirling vortex along the inner surface and swirls in the centrifuge chamber 23. The dust that has entered the centrifugal separation chamber 23 is subjected to the centrifugal force generated by the swirling vortex, rotates along the inner surface of the separation chamber wall 28, and is blown away by the centrifugal force so that the fine dust storage chamber 24. Get inside.
[0020]
The air in the center of rotation of the swirling vortex has almost no dust, but after being filtered by the secondary filter 38 and the nonwoven fabric filter 39, the air is sucked into the electric blower 12 from the air suction portion 14 and exhausted. Dust is further removed by passing through the filter 16 and exhausted to the outside of the main body 7, that is, to the atmosphere.
[0021]
Part of the dust collecting part storage part 10 is configured to be attached to and detached from the dust collecting part 11 (the upper part in the case of this embodiment), and the rigidity of the main body is reduced. By engaging the locking portion B37, the dust collecting portion storage portion 10 fits into the dust collecting portion 11, serves as a beam, improves the rigidity of the entire body, and can improve the strength.
[0022]
In addition, the dust collecting unit 11 is drawn toward the inclined seal surface 15 by the suction and pressure of the electric blower during operation of the electric blower 12. The inclined sealing surface 15 and the packing 35 performing air tightness are soft, and when the dust collecting portion 11 is pulled backward, the packing 35 is deformed in a pressure contact state. However, since the movement of the dust collecting part 11 can be restricted by the locking part A36 and the locking part B37, the deformation of the packing 35 does not occur. In addition, the tightness between the air inlet packing 21 and the dust collecting portion front wall 25 can be reliably performed without collapsing.
[0023]
(Example 2)
Next, a second embodiment of the present invention will be described with reference to FIGS. In contrast to the first embodiment, the dimensions are set such that a gap is provided between the packing 35 and the inclined sealing surface 15.
[0024]
The effect | action by the said structure provides a clearance gap like FIG. 5 when the electric blower 12 stops. Further, as shown in FIG. 6, when the electric blower 12 is operated, the packing 35 is attracted to the inclined tight surface 15 side by negative pressure, and air tightness is maintained. As a result, since the packing 35 and the inclined seal surface 15 are not in pressure contact when stopped, there is no friction between the packing 35 and the inclined seal surface 15 when removing the dust collecting portion 11 from the dust collecting storage portion 10, and it is smooth and light. Detachable with force. The same applies to the reverse mounting. Thus, the mounting property of the dust collecting part 11 is improved and the usability can be improved.
[0025]
(Example 3)
Next, a third embodiment of the present invention will be described with reference to FIG. The same components as those in the first and second embodiments are denoted by the same reference numerals, and the description thereof is omitted.
[0026]
The front and rear clearances are provided in the locking portion A36 and the locking portion B37.
[0027]
With the above-described configuration, by providing a clearance, it is possible to eliminate the hooking of the connecting portion when the dust collecting portion 11 is attached / detached, thereby improving the detachability and improving the usability. In addition, by providing a slight clearance, the dust collector 11 can be moved to the inclined seal surface 15 side by suction of the electric blower 12 to prevent the front wall 18 of the dust collector storage portion 10 from being deformed. Durability can be improved. In addition, by setting the pressure contact dimension between the air inlet packing 21 and the dust collecting part front wall 25 to be equal to or larger than the maximum gap between the air inlet packing 21 and the dust collecting part front wall 25, a reliable tightness can be achieved. It becomes possible to aim at preventing deformation of the front wall 18.
[0028]
Example 4
Next, a fourth embodiment of the present invention will be described with reference to FIG. The same components as those in the first to third embodiments are denoted by the same reference numerals and the description thereof is omitted.
The locking portion A36 is formed and configured to be movable back and forth.
[0029]
The effect | action by the said structure can eliminate a connection part hook at the time of dust attachment part 11 attachment or detachment by making a connection part movable, and attachment or detachment improves and it can improve usability. In addition, by providing a slight movement distance, the dust collector 11 can be moved slightly toward the inclined seal surface 15 by suction of the electric blower 12, thereby preventing deformation of the front wall 18 of the dust collector housing 10. Durability can be improved. In addition, by setting the pressure contact dimension between the air inlet packing 21 and the dust collecting part front wall 25 to be equal to or larger than the maximum gap between the air inlet packing 21 and the dust collecting part front wall 25, a reliable tightness can be achieved. It becomes possible to aim at preventing deformation of the front wall 18. Moreover, even if the system stop part B37 is movable and the system stop part A36 and the system stop part B37 are both movable, the same action can be obtained.
[0030]
(Example 5)
Next, a fifth embodiment of the present invention will be described with reference to FIG. The same components as those in the first to fourth embodiments are denoted by the same reference numerals and the description thereof is omitted.
[0031]
The locking portion A36 is movable forward and backward, and is configured to be biased by a spring body 40 on the side that draws the other locking portion.
[0032]
The effect of the above configuration is that the connecting portion is provided with a certain moving distance, so that the dust collecting portion 11 can be moved to the front wall 18 by suction of the electric blower 12 to prevent the front wall 18 from being deformed and durable. Can be improved. Further, by energizing the spring body 40 in the direction in which they are attracted to each other, the sense of unity between the dust collection part 11 and the dust collection part storage part 10 is improved, and the rigidity can be improved. Moreover, even if the system stop part B37 is movable and the system stop part A36 and the system stop part B37 are both movable, the same action can be obtained.
[0033]
(Example 6)
Next, a sixth embodiment of the present invention will be described with reference to FIG. The same components as those in the first to fifth embodiments are designated by the same reference numerals and the description thereof is omitted.
[0034]
A lip shape is formed on the tight surface of the inlet packing 21, and the lip of the inlet packing 21 is either the front wall 18 or the dust collection chamber front wall 25 in a state where the locking portion A36 and the locking portion B37 are connected. It is configured not to contact one side.
[0035]
As shown in FIG. 10 (state at the time of operation), the operation of the above-described configuration allows the lip of the intake port packing 21 to be in pressure contact with the front wall 18 by the suction and pressure of the electric blower 12 to perform air tightness. When the operation is stopped (not shown), the air inlet packing 21 returns to its original shape, and a gap is formed between the front wall 18. For this reason, the force required for attaching and detaching the dust collecting portion can be reduced and the usability can be improved.
[0036]
In addition, by fixing the air inlet packing 21 to the dust collecting unit front wall 18 and configuring all the packings on the dust collecting unit 11 side, dimensional control regarding air tightness between the dust collecting unit storage unit 10 and the dust collecting unit 11 is achieved. It is easy to perform the process, the tightness variation can be eliminated, and the performance can be improved.
[0037]
(Example 7)
Next, a seventh embodiment of the present invention will be described with reference to FIGS. The same components as those in the first to seventh embodiments are designated by the same reference numerals and the description thereof is omitted.
[0038]
A separate part 43 is formed in the notch or notch hole 42 of the side wall 41 of the dust collecting part storage part 10. Further, the separate part 43 is constituted by a transparent or translucent part.
[0039]
The effect of the above configuration is that by providing the separate part 43, the user can check the amount of dust without removing the large dust collecting portion 11, and the usability can be improved. Moreover, it is possible to have variations in color and shape by making separate parts, and it is possible to meet the preferences of many users. Visibility can be further improved by making the separate part 43 transparent or translucent.
[0040]
【The invention's effect】
ADVANTAGE OF THE INVENTION According to this invention, in the vacuum cleaner provided with the detachable dust collection part, while ensuring the intensity | strength of a main body, the detachability of a dust collection part can be improved.
[Brief description of the drawings]
FIG. 1 is an overall external view of a vacuum cleaner according to a first embodiment of the present invention. FIG. 2 is a side sectional view of the main body. FIG. 3 is a sectional view taken along line AA in FIG. Enlarged view of part B [FIG. 5] Enlarged view of part C of FIG. 2 showing the second embodiment of the present invention (when operation is stopped)
6 is an enlarged view of part C in FIG. 2 (during operation).
FIG. 7 is an enlarged view of part B of FIG. 2 showing the third embodiment of the present invention. FIG. 8 is an enlarged view of part B of FIG. 2 showing the fourth embodiment of the present invention. FIG. 10 is an enlarged view of part B of FIG. 2 showing the sixth embodiment of the present invention. FIG. 11 is an enlarged view of part B of FIG. 2 showing the sixth embodiment of the present invention. Side sectional view (without dust collecting part)
12 is a sectional view taken along the line DD in FIG. 10;
7 Body 10 Dust Collection Storage Unit 11 Dust Collection Unit 12 Electric Blower 21 Inlet Packing 35 Packing 36 Locking Part A
37 Locking part B
42 Notch or hole 43 Separate parts

Claims (1)

An electric blower that emits suction air, a main body having a dust collecting portion that is formed from a material that collects the sucked dust and is visible, and the main body has a relationship when the dust collecting portion is stored in the main body. The stop part A and the engaging part B of the dust collecting part are connected, and at least a part of the outer shell of the main body facing the dust collecting part is formed of a material having visibility, and the dust collecting part Has a seal member for preventing leakage of air flowing into and out of the dust collecting part, and when the locking part A and the locking part B are connected, the seal member is opposed when the dust collecting part is attached / detached. not in contact with the component, when being sucked by the electric blower, electric vacuum cleaner which is configured to be able to perform an air tight contact with the opposite component.

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