JP2009000320A - Vacuum cleaner - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve problems of conventional vacuum cleaners wherein, when disposing of dust, a clump of dust is caught by the inside of a container body and does not fall and that a ventilation loss is large due to the bending of an airflow. <P>SOLUTION: This vacuum cleaner has a cleaner body 1 incorporating an electric blower, and a dust collection case 5 detachably provided in the cleaner body 1, wherein the dust collection case 5 has a dust collection container 20 as a dust storage part and the dust collection container is formed into a circular shape. The dust collection container 20 has a filter for separating air from dust. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a vacuum cleaner.

  A vacuum cleaner that can easily discharge the dust collected in the dust collection case is described in, for example, Japanese Patent Application Laid-Open No. 2003-19094 (Patent Document 1).

  The electric vacuum cleaner disclosed in Patent Document 1 includes a dust collection container that can be attached to and detached from a main body case of the vacuum cleaner, and the dust collection container includes a filter at the top and a bottom lid that can be opened and closed at the bottom. Throw away the trash when the dust container is full of collected dust.

  Dust disposal is easily done by removing the dust container from the main body case, positioning the dust container on the bottom side of the dust container, and opening the bottom lid, so that the dust in the dust container is discarded in the garbage container. .

  Moreover, the vacuum cleaner which reduces the ventilation loss in a dust collection case is described in Unexamined-Japanese-Patent No. 2004-180761 (patent document 2), for example.

  A vacuum cleaner disclosed in Patent Document 2 includes a dust separation unit that separates air and dust flowing through the air passage in the air passage from the suction port of the cleaner body to the intake port of the electric blower, and the separation unit. And a dust storage part for storing the dust separated in (1). An introduction raised portion is formed at one end in the width direction of the dust reservoir provided on the lower side of the dust separator, and the dust separator is provided with an air passage formation body and a guide portion. It has a separation opening that communicates and a filter attached to the opening, and one end defines a separation air passage that communicates with the suction port. The guide portion has an air blowing wall portion facing the other end opening of the separation air passage, and is provided obliquely across the introduction bulge portion and the other end opening, and communicates the air passage formation body and the dust storage portion. Yes.

Japanese Patent Laid-Open No. 2003-19094 JP 2004-180761 A

  In order to maintain a predetermined suction force for the electric blower, it is necessary to throw away the dust accumulated in the dust collector body after cleaning or periodically, and in this case, it can be easily thrown away from the container body without touching the dust. It is desirable for hygiene purposes.

  While the vacuum cleaner is in operation, light and fluffy fiber dust such as cotton dust tends to become a compressed mass due to the air flow passing through the dust collecting container. However, when the operation of the vacuum cleaner is stopped, the compressive force due to the air flow is lost, the compressed dust mass spreads, and the dust mass volume increases. For this reason, in the invention described in Patent Document 1, even if the discharge lid of the dust collecting container body is opened, a lump of dust may be caught inside the container body and the dust may not fall. In this case, it is necessary to scrape the dust caught inside the dust collecting container main body with a hand or a stick, which is not preferable because it is not a sanitary operation.

  In addition, as a device for reducing ventilation loss in the dust collection case, a configuration is proposed in which dust and air flow separated into a dust storage portion provided below the dust separation portion are introduced as in the invention described in Patent Document 2. However, since the air flow is bent, the air loss is increased, and it is difficult to improve the suction work rate.

  An object of the present invention is to solve the above-described problems, and is to provide a vacuum cleaner that can easily and hygienically discharge collected dust and has a small airflow loss.

  In order to achieve the above object, the present invention is characterized by a vacuum cleaner having a vacuum cleaner body having a dust collector and an electric blower, and a dust collector case detachably provided on the dust collector. The dust collection case is provided with a dust container for storing dust, and the dust container is formed in an arc shape.

  ADVANTAGE OF THE INVENTION According to this invention, while being able to discharge | emit dust in a dust container easily and hygienically, a vacuum cleaner with a small ventilation loss can be provided.

  Embodiments according to the present invention will be described below with reference to the drawings.

  It demonstrates from the outline | summary of a vacuum cleaner along FIGS. 1-4. FIG. 1 is an external perspective view of a vacuum cleaner showing an embodiment of the present invention. FIG. 2 is a perspective view showing a state in which the upper cover of the cleaner body is opened. FIG. 3 is a perspective view showing a state where the upper cover of the cleaner body is opened and the dust collecting case is removed. FIG. 3 is a perspective view showing a state where the upper cover of the cleaner body is opened and the dust collecting case is removed. FIG. 4 is an external perspective view of a dust collection case showing an embodiment of the present invention.

  The vacuum cleaner 1 in this Example is shown in FIG.1 and FIG.2. 1 and 2, reference numeral 2 denotes a vacuum cleaner main body including an electric blower (not shown) that generates a suction force, a cord reel (not shown), a dust collecting unit described later, and the like. One end of a hose 12 is connected to the cleaner body 2 via a connecting portion 12. The connection part 12a is connected to the hose connection port part 10 of the cleaner body 2, and the hose 12 communicates with a dust collecting case 5 described later. One end of a hand operation tube 13 is connected to the other end of the hose 12, one end of an expansion joint pipe 14 is connected to the other end of the hand operation tube 13, and a suction port 15 is connected to the other end of the expansion joint pipe 14. ing. Due to the intake force when the electric blower is driven, dust-containing air is sucked from the suction port 15, and the sucked dust-containing air is sucked into the cleaner body 2 through the expansion joint pipe 14, the hand control pipe 13 and the hose 12, After dust is collected (collected) by the dust case 5, the air is exhausted outside the apparatus. The operation mode of the electric vacuum cleaner 1 can be switched by a switch 16 provided on the hand control tube 13.

  As shown in FIGS. 2 to 3, the vacuum cleaner main body 2 has a dust collecting portion 9 for storing a dust collecting case 5 formed in a recess of the upper main body case 4 disposed between the lower main body case 3 and the upper lid 8. A dust collection case 5 is detachably attached. The upper lid 8 is attached to the upper rear portion of the upper body case 4 so as to be able to turn. The dust collection case 5 is taken in and out as shown in FIG. 2 with the upper lid 8 opened, and the upper lid 8 is closed during operation of the vacuum cleaner 1.

  In addition, a filter case 17 is provided between the lower main body case 3 and the upper main body case 4, and a protective filter 18 and a filter cover 19 for suppressing the protective filter 18 are disposed in the filter case 17. Further, a dust removal unit 7 is disposed above the filter case 17. The dust removal rotating body 24 provided in the dust removal unit 7 rotates and repels a second filter 21 formed in a pleat shape, which will be described later, to remove dust accumulated on the second filter 21.

  The lower body case 3 includes a traveling wheel 11 and a guide wheel (not shown) for causing the cleaner body 2 to travel on the floor surface. Furthermore, a handle 6 is attached to the upper part of the upper body case 4 so as to be able to rotate, and the cleaner body 2 can be carried.

  The inlet 30 provided in the dust collecting case 5 and the connecting portion 12a of the hose 12 inserted into the hose connecting port portion 10 are in contact with each other in an airtight state via the elastic seal member 10a. Here, when the dust collection case 5 is attached to the cleaner body 2, the dust collection case 5 and the filter case 17 are made airtight by the elastic seal member 62 integrated with the second filter 21 described later. ing. Further, the filter case 17 and an electric blower (not shown) are in contact with each other in an airtight state via an elastic vibration-proof rubber (not shown).

  Next, the arrangement inside the cleaner body 2 will be described. The hose connection port 10 is located at the center in the width direction of the cleaner body 2 when viewed from above, and is disposed on the front surface of the cleaner body 2. Similarly, the inlet 30 of the dust collection case 5 is located at the center in the width direction of the dust collection case 5 and is disposed in front of the dust collection case 5. By arranging in this way, there is no need to provide a curved flow path or the like at the inlet portion of the dust collecting case 5, so that an effect of reducing ventilation loss can be obtained.

  Moreover, since the inlet 30 which is an air intake is provided in the dust collecting case 5 below the center of the height direction of the dust collecting case 5, the hose connection port 10 communicating with the inlet 30 is also provided. The vacuum cleaner body 2 can be disposed below the center in the height direction. For this reason, since the hose connection port 10 can be arranged at the lower part of the cleaner body 2, when the user pulls the cleaner body 2 through the hose 12 with the hand control tube 13, The vacuum cleaner body 2 is difficult to fall and can be stably routed.

  Next, the dust collection case 5 will be described with reference to FIGS. FIG. 4 is an external perspective view of a dust collection case showing an embodiment of the present invention. FIG. 5 is a side view of a dust collection case showing an embodiment of the present invention. 6 is a cross-sectional view taken along the line AA in FIG. 7 is a cross-sectional view taken along line BB in FIG. FIG. 8 is a side view showing a state where the dust collecting container according to the embodiment of the present invention protrudes from the dust collecting case. FIG. 9 is a cross-sectional side view of a dust collection case and a dust collection container showing an embodiment of the present invention, and FIG. 9A is a diagram showing a state where the dust collection container is accommodated in the dust collection case. FIG. 9B is a view showing a state in which the dust collecting container protrudes from the dust collecting case. FIG. 10 is a perspective view showing the dust collecting container according to one embodiment of the present invention from the back side. FIG. 11 is a perspective view showing a state in which a dust collection container according to an embodiment of the present invention protrudes from a dust collection case. FIG. 12 is a perspective view showing a state in which a dust collecting container according to an embodiment of the present invention is held by a clamp member (locking means). FIG. 13 is an external perspective view showing the dust collecting container according to one embodiment of the present invention from the back side. FIG. 14 is a perspective view showing a state in which the filter portion is opened from the dust collecting case according to the embodiment of the present invention.

  As shown in FIGS. 6 to 14, the dust collection case 5 includes a dust collection container 20 (moving member) as a dust container for collecting dust and storing the dust therein. 20 is provided so as to protrude from the opening 25 of the dust collecting case 5. The dust collecting container 20 is located in the dust collecting case 5 in a state where a part of the dust collecting container 20 protrudes from the opening 25 of the dust collecting case 5. The dust collecting container 20 includes a first filter 64 that functions as a filter that separates air and dust. The dust collecting container 20 collects large coarse dust by the first filter 64 by filtration.

  The dust collection case 5 has an opening 25 in which the dust collection container 20 appears and disappears on the front side. A hinge 27 is provided at the lower part of the front lid 26 as an opening / closing lid for opening and closing the opening 25, and the front lid 26 is rotatably supported by the hinge 27 on the front lower part on the outer peripheral side of the dust collecting case 5. The front lid 26 has an inlet 30 into which dust-containing air containing dust flows. The dust-containing air that has passed through the inlet 30 flows into the dust collecting container 20. The dust collecting container 20 is formed in a container shape having an inlet 30 side (front side) opened, and a first filter 64 provided on the back side, top, bottom, left, and right side surfaces. A first filter 64 is arranged. The opening of the dust collecting container 20 is disposed so as to face the inflow port 30, and the dust flowing in from the inflow port 30 is received by the dust collecting container 20. The dust container 20 protrudes toward the inlet 30 through which dust flows when the front lid 26 is opened. That is, the dust collection container 20 provided with the first filter 64 is provided so as to be able to protrude from the opening 25 of the dust collection case 5, and dust collected on the upstream side of the first filter 64 is moved in the direction of air flow (dust dust). In the direction in which the air is sucked) and is discharged so as to push toward the upstream side opposite to the air flow direction. For this reason, the dust collection container 20 can be easily discarded without impeding the operation when the dust collection container 20 protrudes from the opening 25 of the dust collection case 5. The inflow port 30 is provided with a check valve 31 that prevents the dust accumulated in the dust collecting container 20 from flowing backward and preventing the sucked dust from spilling out from the dust collecting case 5.

  A handle 28 extending in the front-rear direction is provided on the upper portion of the dust collection case 5. The front end side of the handle 28 has a clamp member 29 (locking means) as a front lid restraining means for restraining the front lid 26 in a closed state. In addition, a locking groove 40 is provided in the upper portion of the front lid 26 and is engaged with the flange 36 of the clamp member 29 to restrain the front lid 26. By this front lid restraining means, the front lid 26 is restrained in a closed state. When the clamp member 29 is pushed and the collar 36 moves upward from the locking groove 40 to release the locking, the front lid 26 is It is opened so that it may fall forward.

  If the front lid 26 is closed, the front lid 26 pushes the dust collection container 20 to store the dust collection container 20 in a predetermined position in the dust collection case 5, and the flange 36 of the clamp member 29 is located above the front lid 26. The front lid 26 is restrained by engaging with a locking groove 40 provided on the dust collecting container 20, and the dust collecting container 20 is also locked by the front lid 26. That is, one operation of opening the clamp member 29 can open both the front lid 26 and the dust collecting container 20, and one operation of closing the front lid 26 brings the front lid 26 and the dust collecting container 20 into a predetermined position. Features that can be locked. In addition, as shown in FIG. 10, the rib 39 is provided in the support frame 63 of the dust accommodating part piece 20A which is the dust collecting container 20 by the side of the clamp member 29. As shown in FIG. When the front lid 26 is closed and the dust collecting container 20 is pushed into the dust collecting case 5, the collar portion 42 of the dust collecting case 5 shown in FIG. 9B pushes the rib 39 provided on the dust containing piece 20A. Therefore, the open dust collecting container 20 receives a force in the closing direction. That is, the rib 39 has a function of making it easy to accommodate the dust collecting container 20 in the dust collecting case 5.

  Here, as shown in FIG. 11, a locking groove B37 is provided above the dust collecting container 20 on the clamp member 29 side. Therefore, when the dust collecting container 20 protruding from the opening 25 of the dust collecting case 5 is pushed to the dust collecting case 5 side, as shown in FIG. 12, the flange 36 of the clamp member 29 is engaged with the locking groove B37. Thus, the dust collecting container 20 can be held. In this state, the dust collecting container 20 protrudes from the opening 25 of the dust collecting case 5 and an intermediate position when the dust collecting container 20 is locked at a predetermined position in the dust collecting case 5 when sucking the dust. It is in. That is, the dust container 20 is held at a position between the positions shown in FIGS. 9A and 9B. In this state, it is easy to clean the inside of the dust collecting container 20, and when using a disposable dust collecting filter paper such as dust paper described later, it is easy to arrange the disposable dust collecting filter paper such as dust paper. Even in this case, both the front lid 26 and the dust collecting container 20 can be opened by one operation of opening the clamp member 29. Further, when the front lid 26 is closed from this state, the dust collection container 20 can be stored in a predetermined position in the dust collection case 5 by being pushed by the front lid 26.

  The dust collecting container 20 has at least two dust accommodating part pieces 20A and 20B divided into upper and lower parts. Although the dust collecting container 20 can be divided into left and right parts, here, description will be given along two dust containing part pieces 20A and 20B divided into upper and lower parts.

  The upper dust container piece 20 </ b> A and the lower dust container piece 20 </ b> B are vertically joined together to form the dust container 20, and the dust disposal port 65 is provided on the front side of the dust container 20. A hinge 66 is provided on the rear side / rear side of the dust collecting container 20, and the two dust container pieces 20 </ b> A and 20 </ b> B are connected and supported by the hinge 66 so as to be rotatable. The two dust container pieces 20A and 20B that are rotatably connected and supported by the hinge 66 can widen or narrow the dust disposal port 65. The hinge 66 may be urged by using a spring (not shown) in order to widen the dust disposal port 65. As this spring, a helical spring or a leaf spring is used. Further, the steel wire may be bent into a square shape and hooked on the dust container part 20A and the dust container part 20B constituting the dust collecting container 20 to be biased so as to be opened.

  Here, as shown in FIG. 6 and FIG. 7, the dust collecting container 20 is in the back side (upstream side in terms of air flow) from the dust disposal port 65 in a state where the two dust container pieces 20A and 20B are combined. The shape becomes narrower toward the downstream side). Further, as shown in FIG. 7, in the state where the two dust container pieces 20A and 20B are combined, the side surface shape of the dust collecting container 20 is substantially D-shaped, that is, the arc shape is rounded on the back side, The flow path width is configured to narrow from D1 to D2. Further, as shown in FIG. 6, since the flow path width is narrowed from C1 to C2, the dust collecting container 20 is arranged on the inflow portion 30 side where the cross-sectional area with respect to the flow is upstream. From the dust disposal port 65, it becomes small downstream. That is, the dust collecting container 20 extends toward the dust disposal port 65. Further, the flow path 38 formed between the dust collection case 5 and the outside of the dust collection container 20 is configured such that the flow path width increases from A1 to A2, and the flow path width increases from B1 to B2. ing. Since it comprises in this way, the flow path 38 becomes a shape which expands from the front cover 26 side which is an upstream to the 2nd filter 21 side which is a downstream.

  The air flow that has flowed out of the dust collecting container 20 is upstream of the second filter 21, which is the most downstream side of the flow path 38, so that all of the air flow that has flowed into the dust collection case 5 flows. There is more air volume than the side. That is, since the air flow that has passed through the first filter 64 gradually gathers from the upstream side to the downstream side of the flow path 38, the air volume of the air flow that flows through the flow path 38 gradually increases from the upstream side to the downstream side. It has become. For this reason, since the flow path 38 becomes an enlarged flow path, a large increase in speed can be prevented in the flow path 38, and a ventilation loss can be reduced.

  Further, the dust collection container 20 is disposed on an extension of the inlet 30 which is a suction port of the dust collection container 20 communicating with the hose connection port 10, and this dust collection container 20 is formed in an arc shape and has two dusts. In the state where the housing pieces 20A and 20B are combined, as shown in FIG. 7, the cross section of the dust collecting container 20 is composed of a circular arc and a linear portion substantially in contact with the circular arc, and the side shape is a substantially D-shape ( Arc shape). As a result, the dust that flows into the dust collecting container 20 from the inflow portion 30 and is collected and accommodated in the dust collecting container 20 does not accumulate only in the vicinity of the most downstream side of the first filter 64 where the flow easily hits. Then, it is transported along the arc of the dust collecting container 20 to the front lid 26 side, which is the front side of the dust collecting container 20, and is accumulated. Here, since the air flow that has flowed into the dust collecting container 20 generates a vortex in the dust collecting container 20, the air passing through the first filter 64 near the front lid 26 in the dust collecting container 20 by this vortex. A flow also occurs, and dust accumulates so as to cover the entire first filter 64. That is, when dust accumulates in the dust collecting container 20, the air flow that has passed through the first filter 64 gradually gathers from the upstream side to the downstream side of the flow path 38, and thus flows through the flow path 38. The air volume of the air flow gradually increases from the upstream side to the downstream side. For this reason, since the flow path 38 becomes an enlarged flow path, a large increase in speed can be prevented in the flow path 38, and a ventilation loss can be reduced.

  Moreover, since dust can be conveyed not only to the 1st filter 64 which is a ventilation | gas_flowing part but to the front cover 26 side which is a non-venting part among the dust collection containers 20, the clogging by the dust of the 1st filter 64 is carried out. In addition, it is possible to improve the amount of dust stored in the dust collecting container 20.

  Further, since the upstream of the flow path 38 formed between the dust collecting case 5 of the dust collecting container 20 and the outside of the dust collecting container 20 extends to the vicinity of the front lid 26, even if dust is sucked into the dust collecting container 20, airflow loss is caused. It is also possible to reduce the increase in the pressure of the vacuum cleaner 1 and to suppress the decrease in the suction force of the vacuum cleaner 1. In addition, the cross-sectional shape of the dust collecting container 20 may be configured by using a part of an ellipse instead of an arc, a curve that smoothly changes, or a bowl shape. The cross section may be a substantially rectangular shape with rounded corners as shown in FIG.

  A second filter 21 having a corrugated pleated filter is provided on the rear side of the dust collecting case 5, and the second filter 21 can be opened and closed with respect to the dust collecting case 5, as shown in FIG. Provided. The lower part of the second filter 21 is rotatably supported by a lower part of the dust collecting case 5 by a hinge 23, and the upper part is locked to a hook 22 provided on the upper part of the dust collecting case 5. When the hook 22 is unlocked by pressing the operation button 32 for operating the hook 22, the second filter 21 is opened with the lower hinge 23 as a fulcrum.

  The dust collecting container 20 collects large coarse dust by the first filter 64 by filtration. Fine fine dust passes through the dust collecting container 20 and is collected by filtration on the second filter 21. The dust removal unit 7 has a dust removal rotating body 24 as shown in FIG. The dust removal rotating body 24 rotates when the power cord (not shown) wound around the cord reel (not shown) is unwound, and repels the reinforcing portion 33 provided on the second filter 21 to vibrate. The fine dust collected by the second filter 21 is removed from the second filter 21. The fine dust removed from the second filter 21 falls downward and is stored in a pocket 51 provided at the lower portion of the dust collecting case 5 shown in FIG. The pocket 51 prevents the fine dust removed from being scattered again and reattaching to the second filter 21 when the air flow passes through the dust collecting case 5 by the operation of the vacuum cleaner. It is configured. As shown in FIG. 14, the fine dust collected in the pocket 51 may be discarded by opening the second filter 21 from the dust collecting case 5 and opening the opening provided behind the dust collecting case 5. At this time, the dust adhering to the second filter 21 may be brushed with a brush 35 with a brush or removed by washing with water. Further, most of the dust collected by the second filter 21 is fine dust. For this reason, if the reinforcement part 33 provided in the corrugated pleat of the 2nd filter 21 is flipped along the guide 34, it also has the characteristic that it is easy to remove fine dust.

  Furthermore, since the flow velocity of the air flow flowing into the second filter 21 at the most downstream of the flow path 38 is reduced and the appearance of a locally fast portion can be prevented, an increase in ventilation loss when passing through the second filter 21 can be prevented. It is possible to suppress the suction work rate. In addition, since a locally fast portion can be prevented from appearing in the distribution of the airflow flowing into the second filter 21, it is possible to reduce the amount of dust blown through without being collected by the second filter 21. As a result, the dust collection efficiency of the dust collecting case 5 can be improved, the exhaust from the cleaner body can be purified, and the fine dust can be prevented from flowing into the electric blower. The failure of the part can be suppressed.

  The dust collecting case 5 is configured to expand from the front lid 26 side, which is the upstream side, to the second filter 21 side, which is the downstream side, so that the filter area of the second filter 21 is increased. You can also. As a result, since the flow velocity of the air flow passing through the second filter 21 can be reduced, ventilation loss can be reduced, and the dust collection efficiency of the second filter 21 can be improved.

  Here, when the front lid 26 is made of a transparent or translucent resin material, the user opens the upper lid 8 of the cleaner body 2 and passes through the front lid 26 into the dust collecting container 20 in the dust collecting case 5. Since the amount of accumulated dust can be visually confirmed, it is easier to determine the timing of throwing away the dust, which is more preferable.

  The dust collection container 20 includes a support frame 63 that maintains the outer shape, and a first filter 64 that is stretched on the support frame 63. The first filter 64 is composed of a mesh-like net filter, a metal net, a metal plate having a minute hole, a plastic plate having a minute hole, etc. Collect by filtration. In order to improve dust separation, the first filter 64 may be made of a metal such as stainless steel, or a polyester obtained by sputtering metal particles such as stainless steel. In the first filter 64, the portion provided in the arc portion of the lower dust accommodating portion 20B on the extension of the inflow port 30 is pointed and has no holes because the sucked dust is easy to hit directly. Thus, it is more preferable to use a net made of a metal such as stainless steel for the first filter 64 in this portion.

  Here, the air flow that has flowed into the dust collecting container 20 generates a vortex in the dust collecting container 20, but the flow that has passed through the dust collecting container 20 is rectified by the first filter 64 and flows into the dust collecting container 20. leak. That is, since a locally fast portion can be prevented from appearing in the distribution of the air flow flowing into the second filter 21, an increase in ventilation loss when passing through the second filter 21 can be suppressed, and the second filter 21. Since the amount of dust that blows through without being collected in can be reduced, the collection efficiency can be improved.

  It should be noted that light and fluffy fiber dust such as cotton dust collected in the dust collection container 20 is likely to be compressed and compressed by the air flow passing through the dust collection container 20. During operation of the vacuum cleaner 1, the dust collection container 20 is pushed toward the second filter 21, which is an electric blower (not shown) side, by the fiber dust compressed and solidified in the dust collection container 20. . The support 63 provided in the dust collecting container 20 increases not only the first filter 64 but also the strength of the dust collecting container 20, so that deformation of the dust collecting container 20 can be suppressed, and the dust collecting container 20 is configured. There is also an effect of preventing dust from spilling from between the dust containing part pieces 20A and 20B.

  In addition, since the fiber dust such as cotton dust collected in the dust collection container 20 tends to become a mass compressed in the dust collection container 20, the fine dust that has flowed into the dust collection container 20 due to this mass of fiber dust. Some of the dust is also collected. When the operation of the vacuum cleaner is stopped, the compressed dust lump loses the compressive force due to the air flow, the compressed dust lump spreads, and the dust lump volume increases.

  However, the dust container 20 is expanded toward the dust disposal port 65, and when the accumulated dust is thrown away, the two dust container portions 20A and 20B are opened so as to expand the dust disposal port 65. Even when a mass of compressed dust stored in the dust container 20 spreads, it can be easily discharged from the dust disposal port 65. When the dust is discarded, the dust sucked into the dust collecting container 20 is likely to be compressed into a lump due to the air flow. Therefore, when the dust is discharged from the dust collecting container 20 through the dust disposal port 65, the dust is discharged as a lump. The first filter 64 provided in the dust collecting container 20 is less likely to be clogged with little adhesion and entanglement of dust. For this reason, it is possible to prevent the trouble of removing the dust from the first filter 64 only by throwing away the dust accumulated in the dust collecting container 20. In addition, since the dust collection container 20 is formed on the circular arc, it is possible to suppress dust adhesion and entanglement.

  In addition, a part of fine dust such as dust that has flowed into the dust collection container 20 is also collected by the fiber dust compressed and solidified in the dust collection container 20, and the fiber dust wraps the fine dust. Therefore, when the dust accumulated in the dust collecting container 20 is discarded, the fine dust does not rise and is hygienic. In addition, since a part of fine dusts, such as the dust which flowed into the dust collecting container 20, are also collected and the fiber dust wraps the fine dust, the 1st filter 64 provided in the dust collecting container 20 by the fine dust. It is difficult to cause clogging. As a result, it is possible to suppress a decrease in the air volume when the electric vacuum cleaner is operated, and it is possible to suppress a decrease in suction force, and thus it is possible to suppress a decrease in the ability to suck dust on the surface to be cleaned.

  Note that the dust disposal port 65, which is an opening provided on the upstream side of the dust collecting container 20, is larger than the inlet 30 of the dust collecting case 5, so that dust that has flowed into the dust collecting container 20 from the inlet 30. Can be prevented from being clogged with the dust disposal port 65 when discarded from the dust collecting container 20. Further, if the dust disposal port 65 is enlarged, the volume of the dust collecting container 20 can be increased even if the depth direction of the dust collecting container 20 is shortened, so that the depth (length) of the cleaner body 1 can be reduced. Can be downsized.

  Next, the lower dust accommodating piece 20B is rotatably supported by a hinge 41 below the dust accommodating piece 20B on the end side of the dust disposal port 65. The hinge 41 is located inside the collar portion 42 in which the opening 25 is formed in the dust collecting case 5. The hinge 41 and the hinge 27 of the front lid 26 are located on the front side of the dust collecting case 5 and are provided adjacent to each other. For this reason, the opening / closing operation | movement of the front cover 26 and the dust accommodating part piece 20B is gathered together, and is performed smoothly. A hinge 27, which is a support portion for the front lid 26 that supports the front lid 26 so as to be freely opened and closed, is arranged on the outer peripheral portion of the dust collecting case 5, and the dust container 20B is provided so as to support the dust collection container 20 so that it can be opened and closed. A hinge 41 provided on the inside of the dust collecting case 5 is provided. Since it arrange | positions in this way, the airtight of the front cover 26 and the dust collecting case 5 should just provide the elastic body sealing member 52 attached to the front cover 26. FIG.

  Since this elastic seal member 52 does not need to straddle the hinge 27 that pivotally supports the front lid 26, the elastic seal 52 and the abutment portion 53 are provided when the dust collecting case 5 and the front lid 26 are airtight. Since it is configured on the same plane, it is easy to keep airtight. Further, since the elastic seal member 52 can be configured not to span the hinge 41 that rotatably supports the dust collecting container 20, the elastic seal member 52 is used when sealing between the front lid 26 and the dust collecting container 20. Since the A contact portion 54 provided on the elastic body seal 52 and the dust container portion 20A and the B contact portion 55 provided on the elastic body seal 52 and the dust container portion 20B are configured on the same plane, Easy to be airtight. Further, with one elastic body seal 52, the airtightness between the front lid 26 and the dust collecting case 5 can be secured, and the airtightness between the front lid 26 and the dust container 20A constituting the dust collecting container 20 can be secured. Airtightness of the dust accommodating part 20B which comprises the dust collecting container 20 is securable. Further, since the contact portion with the elastic body seal 52 provided on the front lid 26 can be configured on the same plane, the force only in the direction in which the front lid 26 is urged toward the dust collecting case 5 is used. What is necessary is just to give between cases 5, and since it can be set as the structure which does not raise | generate an air leak easily, the fall of a suction work rate and the spill of garbage can be prevented. Furthermore, it is possible to prevent the dust flowing in from the inlet 30 from flowing short-circuited to the second filter 21 without passing through the dust collecting container 20. In addition, by making the contact point with the elastic seal 52 provided on the front lid 26 common on the same plane, there is no positional deviation between the front lid 26 and the dust collecting container 20 during the opening and closing operation. The opening / closing operation of the front lid 26 and the dust collecting container 20 can be performed more smoothly.

  Here, as shown in FIG. 10, the protrusion biasing spring 43 is provided at the lower front side of the lower dust accommodating piece 20B. The protrusion urging spring 43 urges the lower dust accommodating portion 20 </ b> B to be pushed out of the dust collecting case 5. This protrusion biasing spring 43 is formed by a helical spring, and its central portion is engaged with a spring locking portion 44 provided on the lower dust accommodating portion piece 20B, and both ends are engaged with the dust collecting case 5. . Due to the protrusion biasing spring 43, the lower dust accommodating portion 20B is given a rotational force in a direction protruding from the dust collecting case 5.

  Further, the upper dust accommodating piece 20A is slidably supported on the inner surface of the opening 25. With this slidable support, the dust accommodating piece 20A slides in and out of the dust collecting case 5. Operates as follows. Since it is configured in this way, by releasing the locking of the clamp member 29 restrained in a closed state of the front lid 26, the front lid 26 falls down to the front side, and the two dust container pieces 20A, the dust container The piece 20B is opened so as to expand the dust disposal port 65. That is, the projecting biasing spring 43 biases the dust accommodating portion 20B to push it out of the dust collecting case 5, and also the two dust accommodating portion 20A and the dust accommodating portion 20B so as to expand the dust disposal port 65. It is also possible to serve as a release biasing spring for releasing the. In addition, it is also possible to provide a protruding means that pushes the dust collecting container portion outward by a motor or a human operating force instead of the protruding biasing spring.

  The drop-off prevention member 45 of the drop-off prevention means is provided outside the upper dust container piece 20A. The drop-off prevention member 45 is configured to come into contact with the flange 42 on the upper side of the dust collection case 5. The drop-preventing member 45 comes into contact with the flange 42, whereby the upper dust container piece 20A is stopped. Since the upper dust container piece 20A does not protrude further outward, when the dust container piece 20A and the dust container piece 20B constituting the dust container 20 are expanded and the dust disposal port 65 is expanded, The dust container 20 does not fall off from the dust collection case 5.

  That is, in the dust container 20, the lower dust accommodating piece 20B is rotatably supported by the dust collecting case 5 with a hinge 41, and the upper dust accommodating piece 20A is slidably supported by the opening 25. Therefore, the dust collection container 20 is configured not to drop off from the dust collection case 5. A force that constantly pushes the dust collecting container 20 to the outside of the dust collecting case 5 is applied to the dust collecting container 20 by the protruding biasing spring 43. The front lid 26 stops the dust collection container 20 from protruding against the pushing force. Now, when the clamp member 29 of the restraining means for the front lid 26 is removed, the front lid 26 is opened so as to fall forward as shown in FIG. As shown in FIG. 8, the dust collection container 20 held by the front lid 26 protrudes outside from the opening 25 of the dust collection case 5.

  With this protrusion, the upper dust container part 20A and the lower dust container part 20B are opened, and the dust disposal port 65 is enlarged. The dust accumulated in the dust collecting container 20 is discharged at once from the expanded dust disposal port 65. Further, the dust collecting container 20 is suddenly stopped by the drop-off preventing means 45 at the position where the dust collecting container 20 protrudes out of the dust collecting case 5 vigorously by the protruding biasing spring 43, so that the dust adhering to the first filter 64 due to this impact. It is easy to peel off, and the dust is more efficiently discharged from the dust collecting container 20, and the clogging of the first filter 64 can be prevented, so that a reduction in suction force can be prevented.

  As shown in FIGS. 4 and 5, the dust collection container 20 that has been disposed of is stored in the dust collection case 5. The enlarged dust disposal port 65 is returned to the dust collecting case 5 so as to be narrowed.

  Storage of the dust collecting container 20 is performed with the operation of closing the front lid 26. Since the hinge 27 which is the opening / closing axis of the front lid 26 and the hinge 41 which is the rotation axis of the dust collecting container 20 are arranged in the lower part of the dust collecting case 5 in the same direction with respect to the dust collecting case 5, The rotation direction when opening and closing the lid 26 and the dust collecting container 20 can be made the same, and the dust collecting container 20 can be closed by closing the front lid 26. That is, the dust disposal port 65 placed forward with the opening 25 faces the front lid 26. When the front lid 26 is closed, the inner surface side of the front lid 26 comes into contact with the dust disposal port 65 that is the front surface side of the dust collecting container 20. The dust collecting container 20 is pushed back into the dust collecting case 5 by being pushed by the front lid 26.

  The dust collecting container 20 is pushed back against the protruding biasing spring 43. The outer surface side of the upper dust accommodating piece 20 </ b> A is pushed and slid inside the opening 25. Therefore, as the upper dust container piece 20A enters the dust collecting case 5, it approaches the lower dust container part 20B and the dust disposal port 65 narrows. Thus, the dust collection container 20 is stored in the dust collection case 5. In this manner, the dust collection container 20 can be easily put in and out by opening and closing the front lid 26. Further, the dust collection container 20 can be taken in and out without touching the dust collection container 20, which is advantageous in terms of hygiene.

  Maintenance of the dust collecting container 20 may be performed by opening the front lid 26 and brushing the dust collecting container 20 using a brush 35 as shown in FIG. Moreover, as shown in FIG. 14, cleaning etc. can be easily performed by opening the 2nd filter 21 and brushing the inside of the dust collecting case 5. FIG. At this time, fine dust accumulated in the pocket 51 may be discarded.

  Here, before attaching the dust collecting case 5 to the cleaner body 2, after putting a disposable dust collecting filter paper such as dust paper into the recess of the dust collecting container 20 with the front lid 26 opened, the front lid 26 is closed. For example, the dust collecting container 20 is pushed by the front lid 26 and disposed at a predetermined position in the dust collecting case 5. As shown in FIG. 12, disposable dust collecting paper such as dust paper is attached with disposable dust paper or the like in a state in which the collar 36 of the clamp member 29 is engaged with the locking groove B37 to hold the dust collecting container 20. One side of the dust collecting filter paper is hooked on the flange 36 of the clamp member 29, the opposite side is pressed near the hinge 27 side of the dust container 20B, and the vicinity of the center of the disposable dust collecting paper such as dust paper is It is good to push it into the concave side and attach it. In addition, since the dust collection container 20 is formed on an arc, it is easy to attach the dust collection filter 20 such as dust paper by pushing it into the concave portion of the dust collection container 20.

  After this, if the dust collecting case 5 is attached to the cleaner main body 2 and the vacuum cleaner 1 is operated for cleaning, the dust sucked into the dust collecting container 20 is upstream of the first filter 64. Disposable dust collecting filter paper such as dust paper that has been disposed, and most of the sucked dust accumulate on the upstream side. In this state, the case where the dust collecting case 5 is taken out from the cleaner body 2 and the dust is discarded will be described. Since the dust sucked into the dust collection container 20 tends to become a mass compressed by the air flow, it is wrapped in a disposable dust collection filter paper such as dust paper arranged upstream of the dust collection container 20 and in the recess of the dust collection container 20. It is in the state. For this reason, even when dust is discharged through the dust disposal port 65, most of the dust is discharged in a lump state wrapped in a disposable dust collecting filter paper such as dust paper, so that no fine dust rises and is hygienic. Is. Here, since the dust collecting container 20 is configured in an arc shape, when the disposable dust collecting filter paper such as dust paper is discarded, the dust collecting filter paper such as dust paper is easily rounded and discharged. Therefore, it is more preferable because the rise of fine dust can be suppressed.

  Here, the rotation axis of the hinge 27 is arranged closer to the second filter 21 side in the depth direction of the dust collecting case 5 than the contact portion 53 provided around the opening 25. For this reason, the hinge 27 is easy to hold with a disposable dust collecting filter paper such as dust paper. Further, since the hinge 27 is arranged in this way, the outer diameter of the dust collecting case 5 itself can be reduced as compared with the case where the rotation shaft of the hinge 27 is separated from the opening 25 in the direction directly below the opening 25. The vacuum cleaner body 2 can be made small.

  In the above description, the disposable dust collecting filter paper such as dust paper is attached by removing the dust collecting case 5 from the vacuum cleaner main body 2, but the vacuum cleaner 1 with the dust collecting case 5 attached to the vacuum cleaner main body 2. The disposable dust collecting filter paper such as dust paper can be sucked from the tip of a hose (not shown) connected to the cleaner body 2 and disposed in the concave portion of the dust collecting container 20.

  In addition, the electric vacuum cleaner 1 is operated with the dust collecting case 5 attached to the cleaner body 2 before throwing away the trash, and a disposable collection of dust paper or the like from the tip of a hose (not shown) connected to the cleaner body 2 is performed. It is also possible to suck the dust filter paper and dispose of the dust after wrapping it with disposable dust filter paper such as dust paper on both the upstream and downstream sides of the dust sucked and accumulated in the dust collecting container 20. As described above, if a disposable dust collecting filter paper such as dust paper is arranged on the upstream side of the first filter of the dust collecting container 20, it is difficult for dust to adhere to the first filter and to prevent clogging of the first filter. Therefore, a decrease in suction force can be prevented.

1 is an external perspective view of a vacuum cleaner according to an embodiment of the present invention. It is a perspective view which shows the state which opened the upper cover of the cleaner body which concerns on one Example of this invention. It is a perspective view which shows the state which opened the upper cover of the cleaner body which concerns on one Example of this invention, and removed the dust collection case. It is an external appearance perspective view of the dust collection case which concerns on one Example of this invention. It is a side view of a dust collection case concerning one example of the present invention. It is AA sectional drawing of FIG. It is BB sectional drawing of FIG. It is the side view which showed the place where the dust container which concerns on one Example of this invention protruded from the dust collection case. It is a cutaway side view of a dust collection case and a dust collection container concerning one example of the present invention. It is the perspective view which showed the dust container which concerns on one Example of this invention from the back. FIG. 5 is a perspective view showing a dust collection container protruding from a dust collection case according to an embodiment of the present invention. It is a perspective view which shows the place where the dust collecting container which concerns on one Example of this invention was hold | maintained by the clamp member. It is the external appearance perspective view which showed the dust collecting container which concerns on one Example of this invention from the back. It is the perspective view which showed the place which open | released the filter part from the dust collection case which concerns on one Example of this invention.

Explanation of symbols

5 Dust Collection Case 20 Dust Collection Containers 20A and 20B Dust Storage Part 21 Second Filter 25 Opening 26 Front Cover 29 Clamp Member 36 鉤 37 Locking Groove B
38 Channel 40 Locking groove 64 First filter 65 Dust disposal port 66 Hinge

Claims (6)

In a vacuum cleaner having a vacuum cleaner body having a dust collector and an electric blower, and a dust collector case detachably provided on the dust collector,
The vacuum cleaner according to claim 1, wherein the dust collecting case is provided with a dust container for storing dust, and the dust container is formed in an arc shape. In claim 1,
The vacuum cleaner, wherein the dust container has a filter that separates air and dust. In claim 1 or 2,
An electric vacuum cleaner characterized in that the cross-sectional shape of the dust container is composed of an arc and a straight line part that is substantially in contact with a part of the arc, or a part of an ellipse and a straight part that is substantially in contact with a part of the ellipse . In any one of Claim 1 to 3,
The vacuum cleaner characterized in that the internal space of the dust container is configured such that the upstream side is wide and the downstream side is narrow. In any one of Claim 1-4,
The vacuum cleaner, wherein the dust container is configured to be able to enter and exit from the dust collection case. In any one of Claim 1 to 5,
A vacuum cleaner characterized in that a front lid for opening and closing an opening formed in the dust collection case is provided on the front side of the dust collection case, and the front lid is formed of a transparent or translucent resin material.

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