JP5382620B2 - Portable vacuum cleaner - Google Patents

Description

  The present invention relates to a portable vacuum cleaner, and more particularly to a portable vacuum cleaner that can be self-supported using an extension pipe and a floor nozzle.

  A conventional portable vacuum cleaner incorporates a motor and a dust collecting fan that is rotated by the motor inside a housing, and a dust chamber that stores dust and the like sucked by the rotation of the dust collecting fan is disposed in front of the housing. The dust chamber is provided with a suction port for sucking dust and the like and a valve for preventing the backflow of dust sucked from the suction port. A switch for starting and stopping the motor is disposed in a part of the housing. A filter device such as a bag-shaped filter medium for filtering the sucked dust or the like is detachably disposed in the dust chamber.

  In the above structure, when the switch is turned on and the motor is started, the dust collecting fan rotates and a suction force is generated. When the worker starts the dust collection work, the dust sucked from the suction port adheres to the filter medium surface of the filter device and stays in the filter device. Further, if the dust collection operation is continued, the entire filter device is filled with dust, and it becomes difficult for air to pass through the filter device, and the suction force is reduced. In that case, the operator removes the filter device from the housing and discards the dust accumulated inside. The advantage of the portable vacuum cleaner is that it can be easily carried without being limited in its use range because of its small size. In particular, a cordless portable vacuum cleaner that uses a battery as a power source is easy to use. For storing the portable vacuum cleaner, for example, in the technique of Patent Document 1, a hook is attached for the purpose of hanging on a hanging tool such as a wall. Moreover, when it was not possible to hang, it was necessary to purchase a storage box sold separately.

JP 2000-193 A

  In Patent Document 1 described above, when there is no hanging tool on the wall or the like and there is no optional storage box, the portable vacuum cleaner must be placed sideways, so there is a limit to the place where it can be stored. In addition, it was difficult to store the portable vacuum cleaner because it would easily fall over if it was stood against it.

  The present invention has been made in view of the above background, and an object of the present invention is to provide a portable vacuum cleaner that can be made self-supporting by using an extension pipe connectable to the portable vacuum cleaner and a floor nozzle. is there.

  Another object of the present invention is to provide a portable vacuum cleaner that can be stored neatly without being bulky by collecting and attaching independent accessories.

  Still another object of the present invention is to provide a portable vacuum cleaner that can suppress an increase in the number of parts and an increase in cost and can be made independent with a simple structure.

 The characteristics of representative ones of the inventions disclosed in the present application will be described as follows.

 According to one feature of the present invention, the vacuum cleaner main body is housed in a housing having a grip portion and has a suction nozzle at the front end of the housing, an extension pipe that can be attached to and detached from the suction nozzle, and attachable to and detachable from the tip of the extension pipe. In a portable vacuum cleaner having a floor nozzle that swings in the left-right direction and the front-rear direction, the extension pipe to which the floor nozzle is attached is connected to the cleaner body in a state separated from the suction nozzle. The main body of the vacuum cleaner can be placed vertically by using the nozzle for suction and the suction nozzle. The suction nozzle is cut obliquely so that it comes into contact with the mounting surface at the micro area at the tip when the vacuum cleaner body is placed vertically, and when the vacuum cleaner body is self-supported, the micro area and floor of the suction nozzle are The nozzle is in contact with the mounting surface.

 According to another feature of the present invention, the floor nozzle is configured to include a communication pipe connected to the extension pipe and the nozzle portion, and when the angle in the tilting direction of the communication pipe and the nozzle portion becomes a predetermined angle or more. Rotation preventing means for restricting the swinging of the communication pipe and the nozzle portion in the lateral direction is provided. The detent means can be constituted by a convex portion provided in the communication pipe and a concave portion provided in the nozzle portion. The convex part is a rib that extends in a direction parallel to the axial direction of the communication pipe, and is molded integrally with the communication pipe. The concave part is a notch that extends in a direction parallel to the front-rear direction of the nozzle part, and is integral with the nozzle part. To be molded. Contrary to this relationship, the detent means is a recess provided in the communication tube and a protrusion provided in the nozzle portion, and the recess is a notch extending in a direction parallel to the axial direction of the communication tube. The convex portion is a rib that is molded integrally with the communication pipe, and extends in a direction parallel to the front-rear direction of the nozzle portion, and may be molded integrally with the nozzle portion.

 According to still another feature of the present invention, the cleaner body is provided with a locking portion, hook means for connecting the extension pipe to the locking portion is provided, and the hook means is locked to the locking portion. Thus, the extension pipe is connected to the cleaner body so that the extension pipe is substantially parallel to the axial direction of the cleaner body. The hook means may be molded integrally with the extension pipe, or a separate part may be attached to the extension pipe.

 According to still another aspect of the present invention, a motor, a housing that houses the motor, a suction nozzle provided at the front end of the housing, a fan that can be rotated by the motor, and can be attached to the suction nozzle and held in the housing A portable vacuum cleaner having a floor nozzle unit (floor nozzle alone or a floor nozzle connected to an extension pipe) that can be sucked from a suction nozzle by a fan. It was possible to place it vertically using the nozzle section. When the portable vacuum cleaner is placed vertically as described above, it is preferable that the length in the vertical direction of the floor nozzle portion is larger than the length of the housing.

 According to still another aspect of the present invention, there is provided a portable vacuum cleaner having a housing extending in a longitudinal direction, a suction port provided at a front end of the housing, and an extension tube attachable to a side in the longitudinal direction of the housing. Therefore, it is configured to be vertically installed by a part of the housing and the extension pipe.

  According to the first aspect of the present invention, the extension pipe to which the floor nozzle is attached is connected to the vacuum cleaner main body in a state separated from the suction nozzle, so that the vacuum cleaner main body is vertically moved using the floor nozzle and the suction nozzle. Since it can be placed independently, it can be easily stored in a narrow place.

In addition , the suction nozzle is cut obliquely so as to come into contact with the mounting surface at the micro area at the tip when the vacuum cleaner body is placed vertically, and when the vacuum cleaner body is self-supported, the micro area of the suction nozzle Since the floor nozzle comes into contact with the mounting surface, the vacuum cleaner main body can be stably held upright in the minute area of the suction nozzle and the area (line area) having a predetermined width of the floor nozzle.

According to the invention of claim 2 , the floor nozzle is configured to include a communication pipe connected to the extension pipe and the nozzle portion, and when the angle in the tilting direction of the communication pipe and the nozzle portion exceeds a predetermined angle. Since the rotation preventing means for restricting the swinging of the communication pipe and the nozzle portion in the lateral direction is provided, it is possible to prevent the vacuum cleaner body from overturning due to the nozzle portion rotating in the horizontal direction with respect to the communication tube. it can.

According to the invention of claim 3 , since the rotation preventing means is a convex portion provided in the communication pipe and a concave portion provided in the nozzle portion, there is no trouble in using the cleaner body, and instantly when stored. Can be independent. In addition, operability is good because the operation during storage can be minimized.

According to the invention of claim 4 , the convex portion is a rib extending in a direction parallel to the axial direction of the communication tube, and is formed integrally with the communication tube, and the concave portion is cut in a direction parallel to the front-rear direction of the nozzle portion. Since it is a notch and is molded integrally with the nozzle portion, it is possible to easily realize a self-supporting mechanism of the cleaner body without increasing the number of parts.

According to the invention of claim 5 , since the rotation preventing means is a concave portion provided in the communication pipe and a convex portion provided in the nozzle portion, there is no trouble in using the cleaner body, and instantly when stored. Can be independent. In addition, operability is good because operations required during storage can be minimized.

According to the invention of claim 6 , the recess is a notch extending in a direction parallel to the axial direction of the communication pipe and is formed integrally with the communication pipe, and the convex part is a rib extending in a direction parallel to the front-rear direction of the nozzle part. And since it is integrally molded with the nozzle part, it is possible to easily realize a self-supporting mechanism of the cleaner body without increasing the number of parts.

According to the seventh aspect of the present invention, the extension pipe is connected to the cleaner body so that the extension pipe is substantially parallel to the axial direction of the cleaner body by engaging the hook means with the locking portion of the cleaner body. Therefore, since the extension tube and the nozzle portion can be connected to the vacuum cleaner body and accommodated, a portable vacuum cleaner that is easy to use without being bulky can be realized. Moreover, since the self-supporting mechanism of the cleaner main body can be realized without using another member, the manufacturing cost merit is great.

According to the eighth aspect of the present invention, since the portable vacuum cleaner can be placed vertically using the suction nozzle and the floor nozzle portion, the portable vacuum cleaner can be easily stored in a narrow place or the like. .

According to the invention of claim 9 , since the length in the vertical direction of the floor nozzle portion is larger than the length of the housing in the vertically placed state, the operator holds the upper portion of the floor nozzle portion so that The nozzle part and the vacuum cleaner body can be lifted together. For this reason, since it is not necessary for an operator to grasp the grip part of a cleaner body forcibly, it can be set as an easy-to-use portable cleaner.

  The above and other objects and novel features of the present invention will become apparent from the following description and drawings.

It is a side view of the portable vacuum cleaner which concerns on the Example of this invention, and shows the state which made the vacuum cleaner main body 1 self-supporting using the extension pipe | tube 20 and the nozzle 30 for floors. It is sectional drawing which shows the whole cleaner body 1 which concerns on the Example of this invention. It is a bottom view of the vacuum cleaner main body 1 which concerns on the Example of this invention. It is a side view in the connection state of the extension pipe 20 and the floor nozzle 30 of FIG. It is a bottom view in the connection state of the extension pipe 20 and the floor nozzle 30 of FIG. It is sectional drawing of the nozzle 30 for floors of FIG. It is a side view which shows the tilting condition of the floor nozzle 30 of FIG. It is the perspective view which shows the external appearance of the floor nozzle 30 of FIG. 1, and is the figure seen from diagonally upward. It is the perspective view which shows the external appearance of the floor nozzle 30 of FIG. 1, and is the figure seen from diagonally downward. It is a perspective view which shows the external appearance of the nozzle 50 for floors concerning a 2nd Example.

  Embodiments of the present invention will be described with reference to the drawings. In the present specification, description will be made on the assumption that the vertical and front / rear / left / right directions of the cleaner body 1 indicate directions indicated by arrows in FIGS. 2 and 3.

  FIG. 1 is a side view of a portable vacuum cleaner according to an embodiment of the present invention. In this embodiment, it is assumed that a state where the portable vacuum cleaner is self-supporting as in the state of FIG. The portable vacuum cleaner includes a vacuum cleaner body 1, an extension pipe 20, and a floor nozzle 30. FIG. 1 shows a state in which the cleaner body 1 is self-supported on the floor 49 using the extension pipe 20 and the floor nozzle 30, and a part thereof is shown in a sectional view. The vacuum cleaner body 1 is a so-called portable vacuum cleaner in which a worker performs dust collection work while holding it with one hand, and a grip portion 2 c is formed in the housing 2. The grip portion 2c has a D shape when viewed from the side having a substantially annular cut-out portion. Here, the detailed structure of the cleaner body 1 will be described with reference to FIG.

  FIG. 2 is a cross-sectional view of the cleaner body 1 according to the embodiment of the present invention. The vacuum cleaner main body 1 includes a motor 4, a battery 13 that supplies electric power to the motor 4, a housing 2 that forms the dust chamber 7 that houses the motor 4 and also collects collected dust, and the dust chamber 7. The front cover 3 that covers the opening for discharging the collected dust and the suction nozzle 6 that protrudes from the front of the housing 2 are mainly configured. The motor 4 is a direct current motor, for example, and uses a plurality of batteries 13 attached to the lower rear part of the housing 2 as a power source. The rotation of the motor 4 is turned on / off by a switch 12 provided on the upper part of the grip portion 2c of the housing 2. The switch 12 is configured to be switchable in two stages, the “HIGH (high)” mode in which the motor 4 rotates fast and the suction force is large, and the “LOW (weak)” in which the motor 4 is low and the suction force is small. Can be operated in any of the "" modes.

  The battery 13 can be a rechargeable secondary battery such as a nickel-cadmium battery or a lithium ion battery, and the cleaner main body 1 of this embodiment has an output plug of a charger (not shown) for charging the battery 13. The connector part 13a for connecting is provided. The battery 13 can be charged when the switch 12 is OFF, and the LED lamp 13b is lit during charging.

  Inside the front side of the housing 2, a dust chamber 7 is formed for collecting dust and the like sucked by rotation of a dust collecting fan 5 fixed to the rotating shaft of the motor 4. An opening is provided in the upper part of the dust chamber 7, and the opening can be closed by a detachable front cover 3. The front cover 3 is provided with a push lever 3a for attachment / detachment. The entire dust chamber 7 may be detachably formed in a case separate from the housing 2, and the dust chamber connected to the suction nozzle 6 is screwed so as to rotate relative to the housing 2. It may be configured to be attached.

  A suction nozzle 6 for sucking dust and the like is formed on the front side of the dust chamber 7. The suction nozzle 6 is a tubular member for connecting any one of the floor nozzle 30, the extension pipe 20, and the skimmer nozzle 27. The suction nozzle 6 is formed such that the opening 6a on the front end side is cut out obliquely so that it can be used even when the floor nozzle 30, the extension pipe 20, or the gap nozzle 27 is not connected. A dust stopper 10 that holds the dust bag 8 is provided in the opening 6 b on the rear end side of the suction nozzle 6. A valve 11 is provided at a position facing the opening 6b of the dust stopper 10 to prevent backflow of dust or the like sucked from the outside. A dust bag 8 is disposed inside the dust chamber 7, and the dust-mixed air sucked from the suction nozzle 6 is filtered to collect only dust. The dust bag 8 is formed of a cylindrical or rectangular parallelepiped filter medium, and is composed of a member that can be used repeatedly by washing. However, a disposable paper pack may be mounted instead of the dust bag 8.

  A filter 9 is provided behind the dust bag 8 and on the rear wall of the dust chamber 7. The filter 9 is formed of a detachable member such as a sponge, for example. The air that has passed through the filter 9 is sucked through the air intake port 19 of the dust collecting fan 5. As the dust collection fan 5, a centrifugal fan that sucks air from the front center portion and discharges it to the outer peripheral side can be used. In order to discharge the air sucked by the dust collecting fan 5 from the internal space of the housing 2 to the outside, a discharge port 18 (see FIG. 1) is formed in the side portion of the housing 2.

  By operating the switch 12 and starting the motor 4, the dust collecting fan 5 rotates and suction force is generated in the dust chamber 7, so that air containing dust and the like is sucked from the suction nozzle 6 of the dust chamber 7. The Air containing dust or the like sucked into the dust chamber 7 is filtered by the dust bag 8. During the filtration, dust or the like stays in the dust bag 8 while adhering to the inner wall surface of the dust bag 8. Only the filtered air passes through the dust bag 8 and flows to the dust collecting fan 5 side, and is discharged to the outside from the discharge port 18 provided in the housing 2.

  In the present embodiment, a locking portion 16 is provided to make the cleaner body 1 self-supporting. The locking portion 16 is a place where a predetermined internal space is secured from the substantially square opening 16a, and is a portion for fixing the extension pipe 20 by hooking a hook 25c of the nozzle holder 25 described later. The locking portion 16 is provided with a locking wall 16b corresponding to the shape of the hook 25c and a pressing wall 16c that guides and holds the tip of the hook 25c so as not to rattle. Further, a movable hook 15 is provided at the lower rear portion of the housing 2 so as to be hung on a wall hanging tool or the like.

Returning again to FIG. In this embodiment, in order to make the vacuum cleaner body 1 self-supporting using the extension pipe 20 and the floor nozzle 30, the tip of the suction nozzle 6 (substantially point contact) and the front end edge (approximately line contact) of the floor nozzle 30 are used. And configured to come into contact with the floor surface 49. When self-standing, the vacuum cleaner main body 1 has a longitudinal center line 45 (an extension line of the rotating shaft of the motor) at an angle θ ₁ toward the extension pipe 20 side with respect to a vertical line 46 drawn perpendicularly from the floor surface 49. Will tilt. By tilting the cleaner body 1 in this manner, the component force of the weight of the cleaner body 1 acts on the extension pipe 20 in the direction of arrow A. This component force is transmitted to the extension pipe 20 via the nozzle holder 25 for connecting the extension pipe 20 and the cleaner body 1. The extension pipe 20 is connected to the floor nozzle 30, and the longitudinal center line 47 of the extension pipe 20 is inclined by an angle θ _{2 with} respect to the vertical line 48 drawn perpendicularly from the floor surface 48. As shown by the arrow B, the component force received from is received at the front edge of the floor nozzle 30. At this time, if the relationship of θ ₁ <θ _{2 is established} , the relationship can be maintained most stably, but the relationship of θ ₁ = θ ₂ or θ ₁ > θ ₂ is not necessarily limited to this relationship. The front end edge of the floor nozzle 30 is not point-contacted, but is configured to contact in a line region substantially the same as the width of the floor nozzle 30. By comprising in this way, it can prevent that the extension pipe 20 and the cleaner body 1 fall down by the component force of the dead weight of the cleaner body 1, and can hold the independence of the cleaner body 1 stably.

  Further, in the state of FIG. 1, the length of the extension tube 20 is large when the vertical length (height) of the extension tube 20 is compared with the length (height) of the vacuum cleaner body 1 in the vertical direction. For this reason, the operator can lift the extension tube 20 and the cleaner body 1 together by gripping the upper part of the extension tube 20. For this reason, since it can be moved even if an operator does not grasp the grip part 2c of the cleaner body 1 forcibly, an easy-to-use portable cleaner can be realized. Furthermore, in the state of being placed vertically as shown in FIG. 1, since the grip portion 2 c is disposed above, the cleaner body 1 can be easily lifted even when the operator is standing. It becomes easy to carry around.

  FIG. 3 is a bottom view of the cleaner body 1 according to the embodiment of the present invention. The housing 2 is formed of two members (a right housing 2a and a left housing 2b) that are divided into left and right by a vertical plane extending in the front-rear direction (the axis direction of the motor rotation shaft), and tightens a screw (not shown) from the screw hole 17b. Thus, the right housing 2a and the left housing 2b are fixed. A battery cap 14 that opens and closes when the built-in battery 13 is replaced is provided behind the housing 2. The right housing 2a and the left housing 2b extend from the vicinity of the battery cap 14 to the vicinity of the suction nozzle 6, and are formed by integral molding of a synthetic resin such as plastic. Since the locking portion 16 is disposed so as to come to the joint surface between the right housing 2a and the left housing 2b, it can be easily defined by the inner walls of the right housing 2a and the left housing 2b. The hook 15 is a substantially U-shaped metal member, and can be pulled out by being rotated backward from the illustrated state when the cleaner body 1 is suspended.

  FIG. 4 is a side view of the extension pipe 20 and the floor nozzle 30 of FIG. 1 in a connected state. The extension pipe 20 is a cylindrical elongated pipe, and the outer shape becomes slightly thick from the opening 20a to the enlarged diameter part 20b. Further, in the vicinity of the opening 20c on the distal end side, an enlarged diameter portion 20b having a thick inner diameter is formed in order to connect the floor nozzle 30 and the gap nozzle 27. Here, the outer shape near the opening 20a, the outer shape of the attachment portion 31b of the communication pipe 31, and the outer shape (or outer diameter) near the opening 27b of the skimmer nozzle 27 are the same, and the inner shape (or inner diameter) of the suction nozzle 6 ). Since these are inserted and held while twisting, they are formed in a tapered shape so that the outer diameter becomes slightly smaller toward the opening. Therefore, either the extension pipe 20, the communication pipe 31 of the floor nozzle 30, or the skimmer nozzle 27 can be selectively connected to the suction nozzle 6. Which of these should be connected may be selected appropriately depending on the object to be cleaned by the user.

  The nozzle holder 25 is a member for holding the gap nozzle 27 on the side of the extension pipe 20, and a second cylinder for inserting the first cylinder part 25 a for insertion from the opening 20 a of the extension pipe 20 and the gap nozzle 27. A cylindrical portion 25b is formed. Further, a hook 25c for self-standing as shown in FIG. The nozzle holder 25 is preferably manufactured by integral molding of synthetic resin in order to ensure light weight and sufficient strength. The clearance nozzle 27 that can be attached to the nozzle holder 25 is used for cleaning the crevice of the sofa, the groove of the sash, etc., and can be attached directly to the suction nozzle 6 or via the extension pipe 20. .

  The floor nozzle 30 includes a communication pipe 31 and a nozzle portion 32 extending laterally at the tip thereof. The nozzle portion 32 includes an upper case 33 and a lower case 34 having a suction port on the lower surface, and a bumper 41 is provided on the outer periphery to prevent damage to furniture or the like during cleaning. A communication pipe 31 connected to the extension pipe 20 is attached to the rear part of the floor nozzle 30 so as to be tiltable. Two rollers 35 are provided on the front side and two rollers 36 are provided on the rear side of the nozzle portion 32 in contact with the floor 49. A rubber piece 37 is provided in the central portion to extend in the lateral direction and guide the dust to the suction port.

  FIG. 5 is a bottom view of the extension pipe 20 and the floor nozzle 30 of FIG. 1 in a connected state. The floor nozzle 30 has a T-shape when viewed from the bottom, and a horizontally long suction passage 39 is formed on the left and right sides of the suction port 38. Near the center of the extension pipe 20, a nozzle holder 25 for attaching the clearance nozzle 27 is attached. This figure shows a state in which the gap nozzle 27 is removed from the nozzle holder 25. The nozzle holder 25 can be attached to and detached from the extension tube 20, and the nozzle holder 25 may be removed when it is not necessary to attach the gap nozzle 27 to the extension tube 20. On the bottom surface of the floor nozzle 30, rollers 35 are provided on both sides of the front end side in order to improve sliding with the floor and the like, and two rollers 36 are provided on the rear side and in the vicinity of the connection portion of the communication pipe 31. .

FIG. 6 is a cross-sectional view of the floor nozzle 30 and shows a cross section taken along line AA of FIG. The communication pipe 31 has an opening 31a on one side, and is fitted inside the suction nozzle 6 in the vicinity of the opening 31a, or an attachment part 31b for fitting inside the enlarged diameter part 20b of the extension pipe 20. Is formed. The communication pipe 31 is formed by bending a predetermined angle θ ₃ at a bent portion 31c from a linearly formed portion, and a spherical portion 31d having an outer shape formed in a substantially spherical shape is formed on the tip side of the bent portion 31c. Is done. The spherical portion 31d is sandwiched between spherical portions 33a and 34a formed on the inner walls of the upper case 33 and the lower case 34, so that the nozzle portion 32 is connected to the communication pipe 31 so as to be tiltable or rotatable. The

  FIG. 7 is a side view showing a movable state of the nozzle portion of the floor nozzle 30 of FIG. In this figure, the extension pipe 20 and the floor nozzle 30 are connected to the vacuum cleaner main body 1, and the direction in which the cleaner main body 1 is most operated when cleaning the floor or the like, that is, the vacuum cleaner main body 1 is in a plane perpendicular to the floor surface. It is a figure which shows the movement range of the direction (tilting direction) which inclines the angle. The nozzle part 32 can be inclined about 60 degrees from the horizontal position to the most inclined position. In the present embodiment, when the inclination angle is close to about 60 degrees, the nozzle portion 32 is fixed so as not to move (or rotate) in a direction substantially perpendicular to the inclination direction with respect to the communication pipe 31. Limiting the movement (or rotation) of the nozzle portion 32 in a direction substantially perpendicular to the tilting direction is a convex protrusion 31e formed integrally with the communication pipe 31, and the protrusion 31e is the nozzle portion 32. It fits into a notch portion formed later.

  FIG. 8 is a perspective view showing the external appearance of the floor nozzle 30 of FIG. 1 and is a view seen obliquely from above. As can be understood from this figure, a protruding portion 31e serving as a convex portion is formed at one place in the circumferential direction of the bent portion 31c of the communication tube 31, and a cutout portion 33b serving as a concave portion is formed in the upper case 33 of the nozzle portion 32. Is formed. As described above, when the nozzle portion 32 is tilted at the maximum angle, the nozzle portion 32 is held with respect to the communication pipe 31 so as not to rotate around the central axis extending in the front-rear direction of the floor nozzle 30. In this holding state, since the extension pipe 20 acts on the floor nozzle 30 in the direction A during the self-supporting state shown in FIG. 1, the force acts so that the nozzle portion 32 stays at the most inclined position. As a result, it is possible to prevent the nozzle portion 32 from rotating left and right in a state where the cleaner body 1 is self-supporting using the extension pipe 20 and the floor nozzle 30 as shown in FIG. Can be made independent.

  FIG. 9 is a perspective view showing the appearance of the floor nozzle 30 of FIG. 1 and is a view seen from below. The spherical portion 31d of the communication pipe 31 does not need to have a continuous spherical surface, and may be formed in a slit shape as shown in the drawing in order to reduce the contact area and improve sliding or sliding.

  As described above, according to the present embodiment, in the portable vacuum cleaner in which the floor nozzle 30 can be attached to the suction nozzle 6 of the housing 2 via the extension pipe 20, the removed extension pipe 20 and floor nozzle 30 are connected to each other. Since the vacuum cleaner main body 1 is configured so as to be able to stand on its own, it can be stored stably and independently without choosing a place. In addition, by being independent, it can be stored neatly without being bulky. Furthermore, since the configuration of this embodiment does not require an increase in the number of parts, an increase in manufacturing cost can be minimized.

  Next, a second embodiment of the present invention will be described with reference to FIG. FIG. 10 is a perspective view showing an appearance of the floor nozzle 50 according to the second embodiment. In FIG. 10, the difference from the first embodiment is the shape and arrangement of the uneven portion of the rotation preventing means that restricts the movement (or rotation) of the nozzle portion 52 relative to the communication pipe 51. In FIG. 10, the concave portion 51 e is formed on the communication pipe 51 side, and the convex portion 53 b is formed on the upper cover 53 of the nozzle portion 52. Since both the concave portion 51e and the convex portion 53b can be manufactured by integral molding with a synthetic resin such as plastic, they are not only excellent in strength but also have a beautiful appearance and can be manufactured at a relatively low cost. As described above, according to the second embodiment, the same effects as those of the first embodiment can be obtained.

  As mentioned above, although demonstrated based on the Example which shows this invention, this invention is not limited to the above-mentioned Example, A various change is possible within the range which does not deviate from the meaning. For example, the concavo-convex portions formed on the communication pipe and the floor nozzle are not limited to the shapes described in the first and second embodiments, and when the vacuum cleaner body is established as shown in FIG. On the other hand, as long as the floor nozzle is fixed without rotating, the floor nozzle may be realized by any other shape and means. Further, the communication pipe and the floor nozzle are not separately attachable / detachable, but may be an integral type (the floor nozzle communication pipe and the extension pipe are integrated). In addition, the communication pipe and the nozzle portion are not formed only by unevenness, and some rotation preventing means or fixing means may be formed.

DESCRIPTION OF SYMBOLS 1 Vacuum cleaner main body 2 Housing 2a Right side housing 2b Left side housing 2c Grip part 3 Front cover 3a Push lever 4 Motor 5 Dust collection fan 6 Suction nozzle 6a, 6b Opening part 7 Dust chamber 8 Dust bag 9 Filter 10 Dust stopper 11 Valve 12 Switch 13 Battery 13a Connector portion 13b LED lamp 14 Battery cap 15 Hook 16 Locking portion 16a Opening portion 16b Locking wall 16c Wall 17b Screw hole 18 Discharge port 19 Air intake port 20 Extension tube 20a Opening portion 20b Expanding portion 20c Opening portion 25 Nozzle holder 25a Cylindrical portion 25b Tube portion 25c Hook 27 Clearance nozzle 27b Opening portion 30 Floor nozzle 31 Communication tube 31a Opening portion 31b Mounting portion 31c Bending portion 31d Spherical portion 31e Protruding portion 32 Nozzle portion 33 Upper case 3 3a Spherical section 33b Notch section 34 Lower case 34a Spherical section 35, 36 Roller 37 Rubber piece 38 Suction port 39 Suction path 41 Bumper 45 (in the vacuum cleaner main body 1) Longitudinal center line 46, 48 Vertical line 47 (extension pipe 20 ) Longitudinal center line 49 Floor 50 Nozzle for floor 51 Communication pipe 51e Concave part 52 Nozzle part 53 Upper cover 53a Convex part

Claims (9)

A vacuum cleaner main body housed in a housing having a grip portion and having a suction nozzle at the tip of the housing;
An extension tube detachable from the suction nozzle;
In a portable vacuum cleaner having a floor nozzle that can be attached to and detached from the tip of the extension pipe and swings in the left-right direction and the front-rear direction,
The extension pipe with the floor nozzle attached is connected to the cleaner body in a state separated from the suction nozzle ,
The suction nozzle is cut obliquely so as to come into contact with the placement surface in a minute region of the tip when the vacuum cleaner body is placed vertically,
A portable vacuum cleaner characterized in that the vacuum cleaner main body can be placed vertically by bringing the minute area of the suction nozzle and the floor nozzle into contact with the mounting surface when the vacuum cleaner main body is made to stand by itself. . The floor nozzle is configured to include a communication pipe connected to the extension pipe and a nozzle portion,
An anti-rotation means is provided for restricting lateral oscillation of the communication pipe and the nozzle part when an angle in a tilting direction of the communication pipe and the nozzle part exceeds a predetermined angle. Item 2. The portable vacuum cleaner according to Item 1. The portable vacuum cleaner according to claim 2 , wherein the rotation preventing means includes a convex portion provided in the communication pipe and a concave portion provided in the nozzle portion. The convex portion is a rib extending in a direction parallel to the axial direction of the communication pipe, and is molded integrally with the communication pipe,
The portable vacuum cleaner according to claim 3 , wherein the recess is a cutout extending in a direction parallel to the front-rear direction of the nozzle part, and is formed integrally with the nozzle part. The portable vacuum cleaner according to claim 2 , wherein the rotation preventing means includes a concave portion provided in the communication pipe and a convex portion provided in the nozzle portion. The recess is a notch extending in a direction parallel to the axial direction of the communication pipe, and is molded integrally with the communication pipe.
The portable vacuum cleaner according to claim 5 , wherein the convex portion is a rib extending in a direction parallel to the front-rear direction of the nozzle portion, and is formed integrally with the nozzle portion. A locking part is provided in the vacuum cleaner body,
Hook means for connecting the extension tube to the locking portion is provided;
The extension pipe is connected to the cleaner body so that the extension pipe is substantially parallel to the axial direction of the cleaner body by locking the hook means to the locking portion. The portable vacuum cleaner as described in any one of 1 to 6 . A motor,
A housing for housing the motor;
A suction nozzle provided at the tip of the housing;
A fan rotatable by the motor;
A floor nozzle portion attachable to the suction nozzle and capable of being held in the housing;
A portable vacuum cleaner that can be sucked from the suction nozzle by the fan,
The suction nozzle is cut obliquely so as to come into contact with the placement surface in a minute region of the tip when the vacuum cleaner body is placed vertically,
When the vacuum cleaner main body is self-supported, the vacuum nozzle main body is used by using the suction nozzle and the floor nozzle portion when the minute area of the suction nozzle and the floor nozzle come into contact with the mounting surface. portable vacuum cleaner, characterized in that it was possible vertically. The portable vacuum cleaner according to claim 8 , wherein, in a vertically placed state, a length of the floor nozzle portion in a vertical direction is larger than a length of the housing.

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