JP2012005546A - Upright vacuum cleaner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an upright vacuum cleaner in which dust can be removed easily from a cyclone tube thereof without a user's hand or a nozzle being soiled.SOLUTION: The upright vacuum cleaner includes: a cleaner body 2 having an aspiration mechanism unit 4 structured to contain an electric blower 5 and a dust separation means connected to the lower part of the aspiration mechanism unit 4; and a nozzle connected to a receiving connection port 6 disposed on the bottom of the cleaner body 2, wherein a periphery 35B as the side of a dust chamber 35 of a cyclone tube 9 that constitutes the dust separation means 8 includes a waste hole 37 that communicates with the interior and exterior of the cyclone tube 9, and the waste hole 37 includes an open/close lid 36. As a result, it becomes possible to cause dust accumulated in the cyclone tube 9 to naturally drop into a dust box or the like after the cleaner body 2 is laid down and the open/close lid 36 is opened while the cyclone tube 9 is attached to the aspiration mechanism unit 4 and the nozzle 3 is attached to the cyclone tube 9. Thus, dust can be removed easily without soiling a hand and the nozzle 3.

Description

  The present invention relates to a vertical vacuum cleaner called a stick-type vacuum cleaner or the like, and more particularly to a cyclonic vertical vacuum cleaner.

  Conventionally, this type of vertical vacuum cleaner has a vacuum cleaner body configured by detachably attaching dust separating means to a suction mechanism portion having an electric blower provided with a handle at the top, and a nozzle. However, the suction air flow generated by the electric blower is guided from the nozzle, and dust contained in the suction air flow is separated by the dust separation means and then collected (see, for example, Patent Documents 1 and 2).

  In the prior art, a cyclone cylinder constituting the dust separating means is connected to the lower part of the suction mechanism portion. The suction airflow guided from the nozzle becomes a vortex in the cyclone cylinder, so that dust contained in the vortex is centrifuged. And the clean air from which dust was removed passes through the electric blower and is discharged into the atmosphere. Also, the dust separated from the vortex is stored in the cyclone cylinder. Then, the dust accumulated in the cyclone cylinder is discarded from the opening of the cyclone cylinder by removing the cyclone cylinder from the suction mechanism after cleaning.

JP 2004-8576 A JP 2004-201875 A

  In the conventional vertical vacuum cleaner, the entire cyclone cylinder must be removed from the suction mechanism section, the dust should be discarded from the opening of the cyclone cylinder, and then the cyclone cylinder must be attached to the suction mechanism section again. In addition to being troublesome, there is a risk that the hands are soiled by dust in the cyclone cylinder.

  In order to solve this problem, it is also known to provide an opening at the lower end of the cyclone cylinder and close the opening with an opening / closing lid. However, in such a structure, when the dust is discarded by opening the opening / closing lid, there is a risk that the dust will be applied to the nozzle below the cyclone cylinder and the nozzle will be soiled. Further, since the opening is provided at the lower end of the cyclone cylinder, when the dust is to be discarded without removing the cyclone cylinder from the suction mechanism, the entire vacuum cleaner is placed in a state where the vacuum cleaner main body is in a vertical state. Must be lifted high. For this reason, even when dust is thrown away from the opening provided at the lower end of the cyclone cylinder, the cyclone cylinder is eventually removed from the suction mechanism.

  An object of the present invention is to solve the above-mentioned problems and to provide a vertical vacuum cleaner that can easily dispose of dust from a cyclone cylinder without soiling hands and nozzles.

  According to the first aspect of the present invention, there is provided a vacuum cleaner body having a suction mechanism portion configured to incorporate an electric blower and dust separating means connected to a lower portion of the suction mechanism portion, and a connection port at a lower portion of the vacuum cleaner body. In a vertical vacuum cleaner having a nozzle to be connected, a disposal hole that communicates the inside and outside of the cyclone cylinder is provided in a side portion of the cyclone cylinder that constitutes the dust separating means, and an opening / closing lid is provided in the hole. This is a vertical vacuum cleaner characterized by that.

  The invention according to claim 2 is the vertical vacuum cleaner according to claim 1, wherein the disposal hole is provided in a lower side portion of the cyclone cylinder.

  According to a third aspect of the present invention, the cyclone cylinder is provided with an operation portion for opening and closing the open / close lid, and the operation portion is provided on the opposite side of the cyclone cylinder from the disposal hole. It is a vertical type vacuum cleaner of Claim 1 or 2 characterized by the above-mentioned.

  According to the first aspect of the present invention, the open / close lid is opened with the cyclone cylinder attached to the suction mechanism section and the vacuum cleaner main body lying sideways with the nozzle attached to the cyclone cylinder. By opening, the dust accumulated in the cyclone cylinder can be naturally dropped into a dust box or the like and easily discarded without soiling the hands or nozzles.

  According to the invention of claim 2, by providing the disposal hole in the lower part of the cyclone cylinder, the dust collected on the bottom of the cyclone cylinder can be reliably discarded without contaminating the hand or the nozzle. Can be discarded from the hole.

  According to invention of Claim 3, the operation part for opening and closing the said opening-and-closing lid is arrange | positioned on the opposite side to the said disposal hole in the said cyclone cylinder, The said operation part becomes the said cyclone at the time of disposal of dust. Since it is the upper side of the cylinder, it is possible to prevent the hands from being soiled by dust that naturally falls.

It is a whole perspective view which shows Example 1 of this invention. It is the whole side view of the state which fell to the back to the maximum. It is a perspective view of a nozzle same as the above. It is sectional drawing of the nozzle in the state which stood the connection pipe upright. FIG. 6 is a cross-sectional view of the nozzle in a state where the connecting pipe is tilted to the maximum at the rear. It is the perspective view seen from the slanting lower part around the nozzle and cyclone cylinder in the state which stood the connection pipe upright. FIG. 6 is a perspective view around the nozzle and the cyclone cylinder in a state where the connection pipe is slightly tilted rearward.

  Preferred embodiments of the present invention will be described with reference to the accompanying drawings. The embodiments described below do not limit the contents of the present invention described in the claims. In addition, all of the configurations described below are not necessarily essential requirements of the present invention.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. As shown in FIGS. 1 and 2, the vertical vacuum cleaner 1 includes a cleaner body 2 and a nozzle 3 that is detachably attached to a lower portion of the cleaner body 2.

  The cleaner body 2 includes a suction mechanism unit 4 and a dust separation unit 8 that is detachably attached to the suction mechanism unit 4. The suction mechanism unit 4 is configured to have an electric blower 5 inside a substantially cylindrical casing 4A. In addition, a receiving connection port 6 for connecting the nozzle 3 is provided at a lower portion of the dust separating means 8 constituting the cleaner body 2. The receiving connection port 6 has a cylindrical shape, and its central axis 7 is arranged in the vertical direction. Further, the dust separating means 8 has a cyclone cylinder 9, and the cyclone cylinder 9 is disposed coaxially with the central axis 7 on the upper outer side of the receiving connection port 6. Further, a U-shaped first handle 10 for lifting the electric vacuum cleaner 1 is provided forward on the front surface of the suction mechanism section 4, that is, the upper front surface of the cleaner body 2. Further, on the front side of the upper end surface of the cleaner body 2, a rod-shaped portion 11 protrudes upward, and a second handle 12 is provided on the upper end of the rod-shaped portion 11. The second handle 12 allows the vacuum cleaner 1 to be supported by the user's hand.

  As shown in FIGS. 3 to 5, the nozzle 3 includes a flat nozzle body 13 and a connecting pipe 14 that is connected to the rear part of the nozzle body 13 so as to be swingable in the undulation direction. . Also, an upward convex portion 15 is provided at the rear portion of the upper surface 13A of the nozzle body 13 at the center in the left-right direction of the nozzle body 13, and the opening 16 extends from the upper surface on the rear side of the convex portion 15 to the rear surface. Is formed. Further, the connecting pipe 14 is detachably inserted into the receiving connection port 6, and the connecting pipe 14 provided at the lower part of the connecting pipe part 17 is bent slightly and connected to the opening 16. And a short pipe portion 18 serving as a base end of the. A suction port 19 is formed in the left-right direction at the front lower portion of the nozzle body 13. Further, a through path 20 is provided so that the suction port 19 and the opening 16 communicate with each other. In addition, this penetration path | route 20 is inclined and provided so that it may become high gradually toward the said opening part 16 from the said suction inlet 19 of the front. Further, the short pipe portion 18 of the connection pipe 14 communicates with the opening 16. In addition, an outer tube 21 that is externally fitted to the receiving connection port 6 to be connected is provided on the outer periphery of the connection tube portion 17. Wheels 23 that roll on the floor surface 22 are provided on both the left and right sides of the rear lower portion of the nozzle body 13. Further, a brush portion 24 is provided slightly behind the suction port 19.

  And the short pipe part 18 of the said connecting pipe part 17 is connected with the said opening part 16 so that rocking | fluctuation is possible. This connection will be described. In this description, front and rear and top and bottom are defined based on the posture of FIG. A concave first arcuate surface 25 is formed at the front edge of the opening 16. A concave second arc surface 26 is formed from the bottom surface of the opening 16 to the rear edge so as to face the first arc surface 25. The radius of curvature of the second arc surface 26 is formed larger than the radius of curvature of the first arc surface 25. A third arcuate surface 27 that is slidably in contact with the first arcuate surface 25 is formed on the lower front side of the short pipe portion 18. In addition, a fourth arc surface 28 is formed on the rear side of the short pipe portion 18 so as to indirectly contact the second arc surface 26 side in a slidable manner. In this embodiment, an arc surface member 29 is slidably interposed between the second arc surface 26 and the fourth arc surface 28. A hooking portion 30 is provided at the lower end edge of the fourth arcuate surface 28 toward the rear side, that is, on the side opposite to the through path 20, and the arcuate surface member 29 adjacent to the fourth arcuate surface 28. A receiving part 31 is provided at the upper edge of the front side, that is, toward the through path 20. The receiving portion 31 is configured to be hung on the hanging portion 30. That is, as shown in FIG. 4, in the state where the connection pipe 14 is erected, an opening is generated between the lower end of the fourth arc surface 28 and the rear end of the opening 16, but the receiving portion 31. Since the arc surface member 29 is suspended from the connecting pipe 14 by hanging on the hanging portion 30, the opening between the lower end of the fourth arc surface 28 and the rear end of the opening portion 16 is The circular arc member 29 is closed. On the other hand, as shown in FIG. 5, in the state where the connection pipe 14 is tilted back to the maximum extent, the hook portion 30 and the receiving portion 31 are separated from each other, and the fourth arc surface 28, the arc surface member 29, The second arc surface 26 is overlapped. That is, in this state, the arcuate surface member 29 is accommodated in the nozzle body 13 through the opening 16. The connecting pipe 14 and the arcuate surface member 29 are provided so as to be swingable with respect to the nozzle body 13 with the centers of the first arcuate surface 25 and the third arcuate surface 27 as the rotation center 32. It is done.

  The connecting pipe 14 and the vacuum cleaner main body 2 connected to the connecting pipe 14 are in a state where they are tilted back to the maximum, and the first from the floor surface 22 to the rotation center 32 of the connecting pipe 14. The height A is substantially half of the second height B in the vertical direction of the cleaner body 2 provided with the dust separating means 8, and specifically, the first height A is the second height. The range is set to 1/3 to 2/3 of B. When the first height A is smaller than 1/3 of the second height B, the height of the convex portion 15, that is, the first height of the rotation center 32 provided on the convex portion 15. Since the height A is too low, the design maximum inclination angle of the connecting pipe 14 is too small, or the main body 2 of the cleaner is too large, it should be designed appropriately. On the other hand, when the first height A is larger than 2/3 of the second height B, the height of the convex portion 15, that is, the first height A is actually too high. It should be designed properly. Note that the distance from the central axis 7 to the rear end of the cleaner body 2 (in this embodiment, the distance from the central axis 7 to the rear end of a hook 44 or 44A, which will be described later, when there is no such projection. Is ideal if the radius of the suction mechanism section 4 or the cyclone cylinder 8) is equal to or smaller than the first height A. With such a structure, the cleaner body 2 can be tilted backward until the central axis 7 becomes horizontal. However, in reality, the central axis 7 is not horizontal when the cleaner body 2 is tilted back to the maximum so that the hook 44 or 44A does not touch the floor 22 and damage the floor 22. It is designed to be slightly uphill.

  As shown in FIGS. 6 and 7, the dust separating means 8 includes the cyclone cylinder 9 and a vortex generating member 34 that is detachably provided in the cyclone cylinder 9. The cyclone cylinder 9 includes the receiving connection port 6, an introduction pipe portion 33 that is coaxial with the central axis 7 of the receiving connection port 6 and communicates with the upper portion of the receiving connection port 6, and a large dust collection chamber. 35 and are integrally formed. The eddy current generating member 34 is configured such that a lower end thereof is connected to an upper portion of the introduction pipe portion 33 and an upper end thereof is positioned at an upper end opening of the cyclone cylinder 9. The upper end portion of the eddy current generating member 34 is provided to face the electric blower 5 of the suction mechanism portion 4. The dust collection chamber 35 has a hollow shape communicating with the lower part of the cyclone cylinder 9. The dust collecting chamber 35 has a shape that surrounds the outside of the introduction pipe portion 33 coaxially with the central axis 7, and has a bottom surface 35 </ b> A and a peripheral surface 35 </ b> B that extends from the outer periphery of the bottom surface 35 </ b> A in the axial direction. And. As a result, the suction airflow generated by the electric blower 5 provided in the cleaner body 2 is guided from the suction port 19 of the nozzle 3 to the cyclone cylinder 9 through the connection pipe 14, and the cyclone cylinder 9 , The swirl flow is generated by the eddy current generating member 34, dust is removed by centrifugal force, and then passes through the electric blower and is discharged to the outside of the cleaner body 2. At this time, the swirling flow in the cyclone cylinder 9 descends toward the dust collection chamber 35 while swirling along the inner wall of the cyclone cylinder 9, and the separated dust is stored in the dust collection chamber 35. Then rise.

  A disposal hole 37 is formed in the rear part of the dust collection chamber 35 from the bottom surface 35 </ b> A to the peripheral surface 35 </ b> B. A dust collection discharge opening / closing lid 36 is provided so as to close the disposal hole 37. It has been. The disposal hole 37 is formed by cutting out substantially the rear half of the dust collection chamber 35. The open / close lid 36 has an open / close bottom portion 36A corresponding to the bottom surface 35A and an open / close peripheral surface portion 36B corresponding to the peripheral surface 35B. As described above, at least the inner surface of the dust collection chamber 35 including the open / close lid 36 has a substantially cylindrical shape centered on the central axis 7. The opening / closing lid 36 is connected to the center of the upper edge of the opening / closing peripheral surface portion 36 </ b> B through a hinge shaft 38 that faces the center of the upper edge of the disposal hole 37.

  The cyclone cylinder 9 is provided with a closing lock device 39 for closing the opening / closing lid 36. The lid lock device 39 includes a lock member 40 provided on the bottom surface 35A of the dust collecting chamber 35 and a downward claw-like lock receiving portion 41 provided on the open / close bottom portion 36A of the open / close lid 36. The lock member 40 includes an operation part 40A provided at the front part, a rotation support part 40B provided at the intermediate part, and an extension part 40C provided by bypassing the introduction pipe part 33 at the rear part. It is comprised. That is, the lock member 40 can swing with respect to the cyclone cylinder 9 around the rotation support portion 40B. Then, an upward claw-like locking portion 40D that can be engaged with the lock receiving portion 41 is provided at the tip of the extension portion 40C. Further, between the cyclone cylinder 9 and the lock member 40, an urging force (not shown) is applied so as to urge the operation portion 40A downward, in other words, urge the extension portion 40C upward. Means are provided.

  In the figure, reference numeral 42 denotes a packing attached to the edge of the opening / closing lid 36, and 43 denotes a power cord, which is wound around hooks 44, 44A provided on the casing 4 and the cyclone cylinder 9 when not in use. ing.

  Next, the operation of this embodiment will be described. First, when cleaning the floor surface 22, the user holds the second handle 12 and operates the electric blower 5 with the vacuum cleaner body 2 tilted moderately with respect to the nozzle 3. Then, the suction airflow containing dust is sucked from the suction port 19 of the nozzle 3. At this time, by providing the convex portion 15 on the nozzle body 13 of the nozzle 3, the rotation center 32 of the connection pipe 14 is made relatively high, and the connection pipe 14 and the cleaner body 2 are connected to the central axis 7. By using a coaxial shape as a reference, it is possible to set the first height A to almost half of the second height B, and in the embodiment, 1/3 to 2/3 of the second height B. Thus, the cleaner body 2 provided with the dust separating means 8 can be brought as close as possible to the floor surface 22, and as a result, the cleaner body 2 can be brought down to a level or close to it. it can. Thus, the nozzle 3 can be inserted deeply when the floor surface 22 under the bed, chair, etc. is cleaned by tilting the vacuum cleaner body 2 horizontally or close to it.

  Then, by operating the electric blower 5, the suction airflow sucked from the suction port 19 passes through the through path 20 and the connection pipe 14, and from the vortex generating member 34 of the dust separating means 8 to the cyclone. It flows into the cylinder 9. The suction airflow that flows into the cyclone cylinder 9 is a vortex that descends while rotating along the inner peripheral wall of the cyclone cylinder 9. Then, by creating a vortex in the cyclone cylinder 9 in this way, the dust contained in the vortex (suction airflow) is pressed against the inner peripheral wall of the cyclone cylinder 9 by centrifugal force, whereby the dust is swirled (suction) Is separated from the air flow) and stored in the dust collecting chamber 35. Then, the suction airflow, which is cleaned by separating dust by centrifugal force, rises at the center side of the cyclone cylinder 9, passes through a filter (not shown), and further passes through the electric blower 5 and is exhausted to the atmosphere. The

  After the cleaning, when the dust in the dust collecting chamber 35 is to be discarded, the vacuum cleaner main body 2 is tilted and the operation portion 40A is held by the finger with the disposal hole 37 facing downward. Press toward the dust chamber 35 side. As a result, the lock member 40 swings around the rotation support portion 40B, and the locking portion 40D is separated from the lock receiving portion 41, whereby the lock member 40, the lock receiving portion 41, The locked state of is released. Accordingly, the opening / closing lid 36 is separated from the disposal hole 37 by gravity with the hinge shaft 38 as a center, and the disposal hole 37 is opened. In this way, by opening the disposal hole 37 provided in the side portion of the dust collection chamber 35, the nozzle 3 can be moved without removing the dust separating means 8 from the suction mechanism section 4. The dust can be discarded from the dust collecting chamber 35 without being removed from the dust separating means 8. In the state where the cleaner body 2 is inclined, the operation unit 40A is on the upper side of the bottom surface 35A of the dust collection chamber 35 of the cyclone cylinder 9, so that even if the operation unit 40A is operated, this operation is performed. The hand operating the portion 40A is not contaminated by dust in the dust collection chamber 35.

  As mentioned above, in the said Example, the vacuum cleaner main body 2 which has the suction mechanism part 4 comprised by incorporating the electric blower 5, and the dust separation means connected to the lower part of this suction mechanism part 4, and this cleaning In a vertical vacuum cleaner having a nozzle connected to the receiving connection port 6 at the lower part of the machine body 2, a peripheral surface 35B which is a side portion of the dust collecting chamber 35 of the cyclone cylinder 9 constituting the dust separating means 8 is provided. A disposal hole 37 that communicates the inside and outside of the cyclone cylinder 9 is provided, and an opening / closing lid 36 is provided in the hole 37, so that the cyclone cylinder 9 remains attached to the suction mechanism unit 4 and the cyclone cylinder 9 with the nozzle 3 attached, and opening the open / close lid 36 in a state where the cleaner body 2 is laid down, so that dust accumulated in the cyclone cylinder 9 can be collected without contaminating hands or the nozzle 3. Dust box, etc. It can be easily disposed of by natural fall.

  Further, by providing the disposal hole 37 on the peripheral surface 35B of the dust collecting chamber 35 which is the lower side portion of the cyclone cylinder 9, the dust collecting chamber 35 which is the bottom of the cyclone cylinder 9 is accumulated. Dust can be reliably discarded from the disposal hole 37 without soiling the hands or the nozzle 3.

  Further, the operation unit 40A for opening and closing the open / close lid 36 is disposed at a position opposite to the disposal hole 37 on the bottom surface 35A of the dust collection chamber 35 of the cyclone cylinder 9, thereby At the time of disposal, the operation unit 40A is on the upper side of the cyclone cylinder 9, so that it is possible to prevent the hands from being soiled by dust that naturally falls.

  In addition, this invention is not limited to the above Example, A various deformation | transformation implementation is possible within the range of the summary of invention. For example, in the above embodiment, the disposal hole and the opening / closing lid are provided at the rear part of the cyclone cylinder, and the operation unit is provided at the front part of the cyclone cylinder. The disposal hole and the opening / closing lid may be provided at the front part of the cyclone cylinder, and the operation part may be provided at the rear part of the cyclone cylinder, as long as it is located on the opposite side of the operation part. The hole and the opening / closing lid may be provided on the right or left of the cyclone cylinder, and the operation unit may be provided on the left or right of the cyclone cylinder.

2 Vacuum Cleaner Body 3 Nozzle 4 Suction Mechanism 5 Electric Blower 8 Dust Separating Means 9 Cyclone Cylinder 35 Dust Collection Room 35B Peripheral Surface (Cyclone Cylinder Side)
36 Opening / closing lid 37 Hole for disposal

Claims (3)

A vacuum cleaner main body having a suction mechanism portion configured to incorporate an electric blower and dust separation means connected to a lower portion of the suction mechanism portion;
In a vertical vacuum cleaner having a nozzle connected to the connection port at the bottom of the vacuum cleaner body,
A vertical vacuum cleaner characterized in that a side hole of a cyclone cylinder constituting the dust separating means is provided with a disposal hole communicating with the inside and outside of the cyclone cylinder, and an opening / closing lid is provided in the hole.   The vertical vacuum cleaner according to claim 1, wherein the disposal hole is provided in a lower side portion of the cyclone cylinder.   The cyclone cylinder is provided with an operation part for opening and closing the open / close lid, and the operation part is provided so as to be located on a side opposite to the disposal hole in the cyclone cylinder. The vertical vacuum cleaner according to 1 or 2.

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