JP2005087508A - Vertical vacuum cleaner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To selectively adopt a usage mode using an extension pipe and a usage mode using a hose in addition to a normal usage mode using a suction port body in a vertical type vacuum cleaner. It is assumed that a large posture change is not forced during the operation of switching modes.
SOLUTION: A main body 10 having an electric blower 12 and a dust cup 11, a floor brush 20 connected to the main body 10, and a handle 30 are provided, and one end 41 is connected to the main body 10. A hose 40 that forms an air passage that communicates with the dust cup 11, and an extension pipe 50 that has one end 50 b connected to the handle 30 and forms an air passage that communicates with the floor brush 20. The end portion 42 is detachably attached to the handle 30 by a detachable tube 43.
[Selection] Figure 1

Description

  The present invention relates to a vertical vacuum cleaner, and in particular, to an improvement in piping of a hose or an extension pipe.

  Conventionally, a vertical vacuum cleaner called a so-called upright type has been known. For example, a suction port body is integrally formed at a lower end portion of a vacuum cleaner body including a dust collection chamber and an electric blower. On the other hand, a detachable stick-like handle is provided on the upper side of the main body, and a flexible hose extends downward from a portion near the upper portion of the main body, and the lower end portion of the hose is a suction port body. The thing connected so that attachment or detachment is possible is proposed (patent document 1).

  And according to this vertical vacuum cleaner, in addition to normal use with the suction port body, the lower end of the hose can be removed from the suction port body and connected to a part of the handle that also serves as a gap nozzle. By operating a gap nozzle (handle) that can be removed and shaken freely, a narrow gap or the like can be effectively cleaned. Furthermore, the hose removed from the suction port body can be used as it is without being connected to the handle (Patent Document 1).

  In the vertical vacuum cleaner, the extension pipe is detachably connected to the lower end of the handle, and the lower end of the extension pipe is detachably connected to the suction port body. A technique in which a flexible hose extending from the upper part is connected has been proposed (Patent Document 2).

  In addition, a hose extends from near the middle of the main body, and an extension pipe is attached to the end of the hose. The other end of the extension pipe is detachably attached to a suction port provided below the main body. In addition, a vertical vacuum cleaner provided with a stick-like handle in the main body has been proposed (Patent Document 3).

In addition, the vacuum cleaner can be used as an upright type by placing the vacuum cleaner main body above the suction port body of the canister type vacuum cleaner and connecting the suction port body to the main body. A machine has been proposed (Patent Document 4).
JP-A-5-344938 Japanese Patent Laid-Open No. 10-5155 Japanese Patent No. 3144309 JP 11-104044 A

  However, in the vertical vacuum cleaner disclosed in Patent Document 1, since the hose is connected to the suction port body, the operation of detaching the hose from the suction port body takes a posture such as bending the waist. There is a need to improve the operability.

  This point is the same as in Patent Documents 3 and 4, and when the upper surface of a shelf or the like is cleaned using the extension tube removed from the suction port body, the suction port is at the tip of the extension tube. On the other hand, if the other end side of the extension pipe is gripped, it is difficult to aim at the position to be cleaned away from the hand. Due to the weight of the rear extension pipe and the hose connected to the extension pipe, there is a problem that a large moment acts on the gripped hand, and the operation while supporting becomes difficult. In particular, when the upper surface at a relatively high position is to be cleaned, the vicinity of the tip of the extension pipe must be gripped.

  In addition, when the thing of patent document 4 is made into an upright type, since the suction inlet body and the main body are only hooked by the hook, at the time of operation which separates an extension pipe | tube in a connection part with a suction inlet body, etc. When the main body or the like falls due to the reaction, the hook of the main body and the suction port body is easily disengaged, and the usability may be deteriorated.

  Moreover, since the vertical vacuum cleaner disclosed in Patent Document 2 can also be attached and detached with respect to the connecting portion between the extension pipe and the handle, the usability is improved as compared with those described in Patent Documents 1, 3, and 4 described above. However, since the length from the connection part of the handle and the hose to the end part on the connection part side of the handle and the extension pipe is about the same as the length of the extension pipe, further improvement in usability is desired. ing.

  In addition, the vertical vacuum cleaner described in Patent Document 2 has the air passage from the suction port communicating with the extension pipe on the front side of the main body, so that the center of gravity of the entire vacuum cleaner is on the rear side. There is also a problem that the weight balance is poor, and as a result, when using while supporting the handle part, the vacuum cleaner must always be supported with a large supporting force so as not to fall backward. .

  The present invention has been made in view of the above circumstances, and in addition to a normal usage mode using a suction port body, a usage mode using an extension pipe and a usage mode using a hose can be selectively adopted. It is an object of the present invention to provide a vertical vacuum cleaner that does not force a large change in posture such as bending a waist during an operation of switching its usage mode.

  In order to solve the above-mentioned problems, a vertical vacuum cleaner according to the present invention is configured such that one end of a hose that communicates with a main body to form an air passage is detachably attached to a grip tube.

  That is, the vertical vacuum cleaner according to the present invention has a main body including an electric blower and a dust collecting chamber, a suction port connected to the main body, and a grip tube, and one end portion is A hose that is connected to the main body and forms an air passage communicating with the dust collecting chamber, and one end portion is connected to the grip tube, and the other end portion is detachably connected to the main body, and the suction port body The other end of the hose is detachably attached to the grip tube, and when the hose is attached to the grip tube, the hose wind The path and the air path of the extension pipe communicate with each other through the grip pipe.

  According to the vertical vacuum cleaner of the present invention, the suction port connected to the main body including the electric blower and the dust collecting chamber communicates with the dust collecting chamber through the extension pipe, the grip pipe, and the hose. Therefore, it can be used in a normal mode in which the grip tube is gripped and sucked from the suction port body, and it is used in a mode in which the extension tube and the suction port body are sucked by removing the communicating portion. Furthermore, it can be used in a mode of sucking from the hose by removing the hose at the attachment portion between the grip tube and the hose.

  And since the hose is flexible up to the vicinity of its tip, in the usage mode of suction from the hose, even if the tip of the hose is gripped when cleaning the top surface of the shelf, etc. A large bending moment does not act on the hand that is bent and gripped, and the usability can be improved as compared with the conventional one in which the distal end portion of the extension pipe must be gripped.

  Since the gripped hand and the suction port are close by gripping the vicinity of the tip of the hose, it is easy to aim at the position to be cleaned.

  In addition, the hose can be removed at the part where it is attached to the grip tube, so the user only needs to remove the hose from the grip tube while holding the grip tube with one hand. In order to do this, it is not necessary to greatly change the posture such as bending the waist, and the operability can be improved.

  Furthermore, the extension tube can be removed from the suction port body by, for example, simply pulling upward on the gripped tube while holding the grip tube, and the user can bend his / her waist, etc. There is no need to change it, and the operability can be improved.

  Hereinafter, specific embodiments of the vertical vacuum cleaner according to the present invention will be described with reference to the drawings.

  FIG. 1 is a perspective view showing a vertical vacuum cleaner (hereinafter simply referred to as a vacuum cleaner) 100 according to an embodiment of the present invention. The vacuum cleaner 100 shown in the figure includes a dust cup (dust collection chamber) 11 and an electric blower 12 inside, and a cleaning hook 13 is formed on the upper part of the figure and a hole-like stand holder 14 is formed on the rear side of the figure. A machine main body (hereinafter simply referred to as a main body) 10, a floor brush (suction port body) 20 that is disposed below the main body 10, has a rotating brush (not shown), and is connected to the main body 10; A handle (grip tube) 30, one end 41 is connected to the upper part of the main body 10 to form an air passage communicating with the dust cup 11, and the other end 42 is connected via a detachable tube 43. A flexible hose 40 detachably connected to the hollow tube 31 of the handle 30 and one end (upper end in the drawing) 50b are connected to the hollow tube 31 of the handle 30 and the other end. Section (lower end in the figure) 50a is detachably connected to the connecting pipe 21 of the main body 10 extending from the floor brush 20, and includes an extension pipe 50 that forms an air passage communicating with the floor brush 20, and the hose 40 is connected to the hollow pipe 31. In this state, the air path from the dust cup 11 to the floor brush 20 communicates through the hose 40, the hollow tube 31 and the extension tube 50.

  Here, although a pair of wheels 22 is provided at the lowermost part of the vacuum cleaner 100 in the drawing, the wheels 22 may be provided on the floor brush 20 side or provided on the main body 10 side. Also good.

  The extension pipe 50 includes a lower extension pipe 51 and an upper extension pipe 52, and the extension pipe 50 as a whole is expanded and contracted by adjusting the overlapping length of the extension pipes 51 and 52 at a substantially intermediate portion in the longitudinal direction. It is made possible. In addition, the substantially intermediate portion is inserted into a stand holder 14 formed on the rear surface of the main body 10 from the upper side to the lower side in the drawing so that the extension tube 50 is locked to the main body 10. A stopper 53 is provided.

  The lower end portion 50a of the extension pipe 50 is shown to be fitted to the connecting pipe 21 from the outside by a taper, but this is applied to the lower end portion 50a of the extension pipe 50 as described later. In the configuration provided with 70 (see FIG. 7), the two pipes 50 a and 21 are easily fitted, and the connecting pipe 21 may be fitted into the lower end 50 a from the outside.

  The length of the lower extension pipe 51 is set in advance so that the lower end portion 50a and the connection pipe 21 are fitted in the state in which the stand stopper 53 is inserted into the stand holder 14.

  FIG. 2 is an enlarged perspective view of the main part of the detachable pipe 43 that connects the hollow pipe 31 of the handle 30 and the end 42 of the hose 40, and FIG. 3 shows the detachable pipe 43 and the hollow pipe 31. It is the disassembled perspective view which disassembled and displayed.

  Here, the end portion 42 of the hose 40 and the detachable tube 43 are fixed to each other, and the detachable tube 43 includes a tube portion 44 and an operation ring 45. The tube portion 44 is a hollow tube, and its outer peripheral surface. Two parallel ridges 44a, 44a extending in the circumferential direction are formed in a substantially intermediate portion in the axial direction, and a guide groove 44b for holding the operation ring 45 is formed between the two ridges 44a, 44a. .

  The operation ring 45 has a substantially C-shaped cross-section in which a part in the circumferential direction is cut, and the inner diameter is slightly larger than the outer diameter of the guide groove 44b of the cylindrical portion 44, and the width is the guide groove 44b. It is formed slightly smaller than the width.

  Claws 45a and 45a projecting toward the center of curvature of the operation ring 45 are formed at the notch end portions 45d and 45d, respectively, and the projection amounts of the claws 45a and 45a projecting from the inner wall surface of the operation ring 45 are formed. Is formed substantially the same as the peripheral wall thickness of the cylindrical portion 44.

  In addition, a locking piece 45c that protrudes toward the center of curvature is formed on the inner wall surface of the operation ring 45 that faces the notch. The protruding amount of the locking piece 45 c protruding from the inner wall surface of the operation ring 45 is formed larger than the peripheral wall thickness of the cylindrical portion 44.

  Further, on the outer peripheral surface of the operation ring 45, in the vicinity of the notch end portions 45d and 45d, a user puts his / her finger on the operation ring 45 so that the width of the notch (between both notch end portions 45d and 45d). Finger hooks 45b and 45b are formed for effectively applying an operating force that deforms in a direction in which the distance between the fingers is increased.

  On the other hand, the guide groove 44b of the cylindrical portion 44 is formed with claw movable holes 44c and 44c into which the claws 45a and 45a of the operation ring 45 are loosely fitted, and a rectangular hole 44d into which the locking piece 45c is inserted. Further, on the inner wall surface of the cylindrical portion 44, an annular stopper 44e is formed on the upper side of the guide groove 44b so as to abut the upper end surface 33 of the hollow tube 31 inserted from the lower side of the cylindrical portion 44 in the drawing. Has been.

  On the other hand, on the outer peripheral surface of the hollow tube 31 inserted from the lower side of the cylindrical portion 44 in the drawing, the hollow tube 31 is inserted into the cylindrical portion 44 from the lower side of the drawing to In the state where the end surface 33 is in contact with the lower surface side of the stopper 44e of the cylindrical portion 44, the groove 32 that engages with the locking piece 45c that protrudes from the outside of the cylindrical portion 44 through the rectangular hole 44d of the cylindrical portion 44 is formed. Has been.

  In addition, an elastic member 32a shown in a partially enlarged cross-sectional view of FIG. 4B described later is disposed at the bottom of the groove 32, and the depth of the groove 32 of the hollow tube 31 and the cylindrical portion 44 are disposed. The elastic member 32a is configured to absorb the accumulated error of the inner and outer diameters, the inner diameter of the operation ring 45, and the protruding amount of the locking piece 45c by elastically deforming the elastic member 32a in the radial direction.

  Next, the operation of the vacuum cleaner 100 according to this embodiment will be described.

  First, in a normal use state, that is, when the floor brush 20 is used as an actual suction port, the suction port body 20 and the extension pipe 50 are connected via the connection pipe 21 as shown in FIG. Then, the extension pipe 50 and the hose 40 may be connected to each other via the handle 30. At this time, the extension pipe 50 has the lower end portion 50a fixed to the connection pipe 21, and the stand stopper 53 is set to the stand holder 14. Therefore, the extension pipe 50 is integrated with the main body 100, and the handle 30 connected to the upper end 50b of the extension pipe 50 is grasped and moved back and forth to move the entire vacuum cleaner 100 back and forth. Can be equalized.

  In this state, the suction cup (not shown) provided on the lower surface of the dust cup 11, the hose 40, the handle 30 (hollow tube 31), the extension tube 50, the connection tube 21, and the floor brush 20 shown in FIG. 1. However, when the electric blower 12 is driven to form a single air passage, dust sucked from the suction port of the floor brush 20 is connected to the connecting pipe 21, the extension pipe 50, the hollow pipe 31, And the dust is collected in the dust cup 41 through the hose 40.

  The electric blower 12 can be switched between driving and stopping by a hand switch (not shown) provided on the handle 30.

  Next, when cleaning a high side surface (such as a wall surface or an air intake of an air conditioner attached to the wall surface) or a narrow gap between furniture and a wall surface, floor surface, etc., FIG. When the handle 30 is grasped and pulled upward from the normal use state, the extension tube 50 connected to the handle 30 is pulled upward together with the handle 30, thereby being provided at a substantially middle portion of the extension tube 50. The stand stopper 53 is pulled out from the stand holder 14 of the main body 10, and the lower end portion 50a of the extension pipe 50 is pulled out from the connection pipe 21, so that the extension pipe 50 is not restricted by the main body 10, and the user can extend the extension pipe. 50 can be freely shaken (see FIG. 6B).

  At this time, the user can remove the extension tube 50 from the main body 10 without greatly changing the posture such as bending the waist, that is, by simply pulling the handle 30 upward.

  In this state, the dust cup 11, the hose 40, the handle 30 (hollow tube 31), and the extension tube 50 form one communicating air path. The dust sucked from the end opening of the lower end portion 50 a of the 50 is collected in the dust cup 41 through the extension tube 50, the hollow tube 31, and the hose 40.

  Next, for example, when cleaning the reach of places where the height is higher than the middle height, such as the waist height, for example, the upper surface of a sideboard or a television receiver stand, etc., rather than using the extension tube 50 The cleaning work can be reduced if the hose 40 that is easy to handle is used as a suction port for cleaning.

  Therefore, in this case, as shown in FIG. 6C from the normal use state of FIG. 6A, the hose 40 connected to the handle 30 is removed from the handle 30 together with the detachable pipe 43, whereby the dust cup 1 And the hose 40 (including the detachable tube 43) communicate with each other, and the electric blower 12 is driven to suck in from the end opening of the detachable tube 43 provided at the end 42 of the hose 40. The collected dust is collected in the dust cup 41 through the hose 40.

  Here, the operation of the detachable tube 43 for removing the hose 40 from the handle 30 will be described with reference to FIGS. 4 and 5. 4 (a) and 5 (a) are cross-sectional views showing a cross section taken along line AA in FIG. 2, and each figure (b) is a partially broken perspective view.

  In the state where the hose 40 and the hollow tube 31 of the handle 30 are connected, the hollow tube 31 is inserted into the cylindrical portion 44 constituting the detachable tube 43 as shown in FIG. The upper end surface 33 of 31 is abutted against the lower surface of a stopper 44 e formed on the inner wall surface of the cylindrical portion 44.

  On the other hand, an operation ring 45 is fitted into a guide groove 44b (see FIG. 3) formed on the outer peripheral surface of the cylinder portion 44, and the two claws 45c, 45c of the operation ring 45 are claw formed on the cylinder portion 44. The locking piece 45c of the operation ring 45 is loosely fitted in the movable holes 44c and 44c, passes through a rectangular hole 44d formed in the cylindrical portion 44, and is an outer peripheral surface of the hollow tube 31 inserted into the cylindrical portion 44. It engages with the groove 32 formed in.

  Thus, the detachable tube 43 and the hollow tube 31 are locked to each other in the axial direction by the engagement of the locking piece 45c of the operation ring 45 and the groove 32 of the hollow tube 31. .

  In addition, since the groove | channel 32 is continuously formed over the perimeter of the hollow tube 31, the attachment or detachment tube 43 and the hollow tube 31 can be relatively rotated by arbitrary angles. Therefore, even when the hose 40 is excessively twisted with respect to the handle 30, the detachable tube 43 is removed from the hollow tube 31 so as to eliminate the twist between the hollow tube 31 and the detachable tube 43. The hose 40 can be easily handled.

  Next, the effect | action which removes a hose from the hollow tube 31 is demonstrated with reference to FIG. First, as shown in FIG. 4 (a), the fingers are hooked on both finger hook portions 45b and 45b of the operation ring 45, for example, in the direction of the thick arrow, that is, in the direction of widening the gap between the notch end portions 45d and 45d. When a load is applied, the operation ring 45 is displaced and elastically deformed with respect to the cylindrical portion 44 as shown in FIG. The positional deviation and elastic deformation are caused by the direction in which the gaps between the notch end portions 45d and 45d are widened in the range of the circumferential opening lengths of the claw movable holes 44c and 44c. Is allowed by displacing to.

  And by this position shift and elastic deformation, the front-end | tip (front-end | tip to a curvature center direction) of the latching piece 45c of the operation ring 45 slips out from the groove | channel 32 of the hollow tube 31 which was engaged.

  In this manner, when the detachable tube 43 is pulled upward with respect to the hollow tube 31 in a state where the engagement between the locking piece 45c of the operation ring 45 and the groove 32 of the hollow tube 31 is released, the detachment is performed. The tube 43 and the hollow tube 31 are separated, and the hose 40 is removed from the handle 30 (FIG. 6C).

  As described above, the detachable tube 43 of the hose 40 removed from the handle 30 can be gripped, and dust can be sucked from the end opening of the cylindrical portion 44 of the detachable tube 43. Are so close that it is easy to aim at the location to be cleaned.

  Moreover, since the hose 40 has flexibility unlike the extension pipe 50, even when the detachable pipe 43 is gripped and bent, the hose 40 bends at the hose portion immediately after the detachable pipe 43 and extends the hose 40. When cleaning the upper surface of a relatively high place such as an intermediate position, handling is easier than when the extension pipe 50 is used.

  In addition, while holding the handle 30 with one hand, the hose 40 can be attached / detached with the other hand at the substantially same height position as the handle 30, It is possible to improve the attachment / detachment operability without greatly changing the posture, such as bending.

  In the above description, the transition from the normal use state shown in FIG. 6A to the use state (FIG. 6B) using the extension pipe 50 and the use state using the hose 40 (FIG. 6 (c)), on the contrary, the transition action from each use state shown in FIG. 6 (b) or (c) to the normal use state (FIG. 6 (a)) is The operation described above may be reversed.

  Further, as described above, the elastic member 32a provided in the groove 32 of the hollow tube 31 is for absorbing an accumulation error such as the depth of the groove 32 of the hollow tube 31. Is not necessarily provided when the value is within an appropriate management range.

  On the other hand, a friction reducing member made of a fluororesin or the like may be provided in the groove 32 in place of the elastic member 32a for the purpose of smoothing the relative rotation between the groove 32 and the locking piece 45c.

  As described above in detail, according to the vertical vacuum cleaner 100 according to the present embodiment, the main body 10 including the electric blower 12 and the dust cup 11 and the floor connected to one side of the main body 10. While having the brush 20 and the handle | steering-wheel 30, one edge part 41 is connected to the part on the opposite side to the side to which the floor brush 20 was connected among the main bodies 10, and forms the air path connected to the dust cup 11. A hose 40 having one end 50b connected to the handle 30, and an extension pipe 50 having the other end 50a detachably connected to the connecting pipe 21 to form an air passage communicating with the floor brush 20. In the state where the other end 42 of the hose 40 is detachably attached to the hollow tube 31 of the handle 30 and the hose 40 is attached to the hollow tube 31 of the handle 30, the air path of the hose 40 is extended. 50 air passages communicate with each other through the hollow tube 31 of the handle 30 so that they can be used in a normal mode of sucking from the floor brush 20, and the communicating portion between the extension tube 50 and the floor brush 20 is removed. Therefore, it can be used in a mode of sucking from the extension pipe 50, and further, it can be used in a mode of sucking from the hose 40 by removing the hose 40 at the attachment portion between the handle 30 and the hose 40.

  And since the hose 40 has flexibility to the front-end | tip part 42 vicinity, in the usage condition attracted | sucked from the hose 40, when cleaning the upper surfaces, such as a shelf, the detachable tube 43 provided in the front-end | tip part 42 of the hose 40 is provided. Even if it is gripped, it bends at the part immediately after gripping, so that a large bending moment does not act on the gripped hand, and the usability is improved over the conventional one that must grip the tip 50a of the extension pipe 50. . In addition, by gripping the detachable tube 43 in the vicinity of the distal end portion 42 of the hose 40, the gripped hand and the suction port are close to each other, and it is easy to aim at the position to be cleaned.

  Moreover, since the hose 40 can be removed at the attachment portion with the handle 30, the hose 40 may be removed from the handle 30 with the other hand while holding the handle 30 with one hand. In order to perform the attaching / detaching operation, it is not necessary to greatly change the posture such as bending the waist, and the operability can be improved.

  Furthermore, the extension pipe 50 can be removed from the floor brush 20 by simply pulling up the gripped handle 30 while holding the handle 30, and it is necessary to greatly change the posture such as bending the waist. The operability can be improved.

  In addition, since the extension pipe 50 is formed to be extendable and contractible in the axial direction, the cleaning range using the extension pipe 50 can be made variable according to the extension / contraction amount of the extension pipe 50. Therefore, the length of the extension pipe 50 can be appropriately adjusted so as to appropriately correspond to the cleaning target range.

  Furthermore, since the extension pipe 50 that is lighter than the main body 10 is attached so as to be piped to the rear surface side of the main body 10, the extension pipe 50 is arranged on the front side of the main body (described in Patent Document 2). As in the case of an installed vacuum cleaner), the weight is not biased to the rear side, and the weight balance can be stabilized.

  In the vertical vacuum cleaner 100 of the above-described embodiment, the extension pipe 50 is provided at the lower end 50a of the extension pipe 50 or the end of the hose 40 (the end opposite to the side connected to the main body 10) 42. The attached detachable tube 43 is preferably provided with a brush 60 or 70 shown in FIG.

  Here, the brush 60 shown in FIG. 7A is formed in an axially extending groove M formed on the outer peripheral surface of the lower end portion 50a of the extension tube 5 or the outer peripheral surface of the cylindrical portion 44 of the detachable tube 43. The protrusions 61 formed on the inner wall surface of the brush 60 are engaged with each other, so that the brush 60 can be linearly moved in the range of the groove M and fixed at an arbitrary position of the groove M. When the protrusion 61 is positioned at the uppermost portion of the groove M in the drawing, the bristles of the brush 60 do not protrude from the end surface of the lower end portion 50a or the end surface of the cylindrical portion 44 (two-dot chain line in the drawing). When the protrusion 61 is positioned at the lowermost part of the groove M in the figure, the use position (in the figure, the hair end of the brush 60 protrudes from the end face of the lower end part 50a or the end face of the cylindrical part 44). (Represented by a solid line).

  On the other hand, the brush 70 shown in FIG. 7 (b) has a groove M extending in the axial direction formed in the outer peripheral surface of the lower end portion 50 a of the extension pipe 5 or the outer peripheral surface of the cylindrical portion 44. The protrusion 71 formed on the wall surface is engaged, and the brush 70 can be linearly moved and rotated in the range of the groove M, and is fixed at an arbitrary position of the groove M. Here, the brush 70 is formed in a semi-cylindrical shape in which about half of the entire circumference is notched, and the brush 70 can be rotated around the protrusion 71 by the notch.

  Then, the protrusion 71 is positioned at the uppermost portion of the groove M in the figure, and the brush 70 is protruded 71 so that the end of the brush 70 faces in the direction opposite to the end surface of the lower end portion 50a and the end surface of the tube portion 44. The position rotated around is the storage position of the brush 70 (represented by a two-dot chain line in the drawing), the brush 70 is rotated around the protrusion 71 by an arbitrary angle within 180 degrees, and the protrusion 71 is within the range of the groove M. By moving the brush 70 to an appropriate position according to the rotation angle, the brush 70 is used at an inclined use position (indicated by a solid line in the drawing) where the brush 70 is inclined at an appropriate angle. In a position where the brush 70 is rotated around the protrusion 71 so as to face the end face of 50a or the end face of the cylindrical portion 44, the normal use position (one in the figure is shown) where the brush 70 is used in the same orientation as in FIG. Represented by a dashed line) and a.

  By providing the brush 60 or 70 as described above, dust that cannot be removed by simple suction can be scraped and collected by sucking the brush 60 or 70 while sliding.

  Furthermore, by providing a brush 60 or 70 at the suction tip (the lower end 50a or the cylinder 44 of the extension pipe 50), the cloth (carpet, futon, etc.), paper (newspaper, magazine, etc.), vinyl, etc. can be made flexible. A gap due to the bristles of the brush 60 is formed between the object having the property and the suction tip portion, and it is possible to prevent these objects from coming into close contact with the suction tip portion. It is possible to prevent an unnecessary load from acting on the electric blower 12.

It is a perspective view which shows embodiment of the vertical vacuum cleaner which concerns on this invention. It is a perspective view which shows the connection part detail of the handle | steering-wheel and hose of the vertical vacuum cleaner shown in FIG. It is a disassembled perspective view which shows the attachment / detachment mechanism of the handle | steering-wheel shown in FIG. 2, and the edge part of a hose. FIGS. 3A and 3B are views (part 1) for explaining the attaching / detaching action of the attaching / detaching mechanism shown in FIG. 3, wherein FIG. 3A is a cross-sectional view showing a cross section taken along the line A-A in FIG. . FIGS. 3A and 3B are views (part 2) for explaining the attaching / detaching action of the attaching / detaching mechanism shown in FIG. 3, in which FIG. 3A is a sectional view showing a section taken along line AA in FIG. . It is a figure which shows the use condition of the vertical vacuum cleaner which concerns on embodiment shown in FIG. 1, Comprising: (a) is a normal use condition, (b) is the use condition which disconnected the connection of an extension pipe and a floor brush, (C) represents a use state in which the connection between the hose and the handle is disconnected. It is a side view explaining the structure which attaches a brush to an extension pipe or a detachable pipe.

Explanation of symbols

10 Vacuum cleaner body 11 Dust cup (dust collection chamber)
12 Electric blower 13 Hook 14 Stand holder 20 Floor brush (suction port)
21 Connection pipe 22 Wheel 30 Handle (grip pipe)
31 Hollow tube 40 Hose 41, 42 End 43 Detachable tube 44 Tube 45 Operation ring 50 Extension tube 50a Lower end 50b Upper end 51 Lower extension tube 52 Upper extension tube 53 Stand stopper 100 Vertical vacuum cleaner

Claims (3)

  An air blower having an electric blower and a dust collecting chamber, a suction port connected to the main body, and a grip tube, and having one end connected to the main body and communicating with the dust collecting chamber A hose that forms a path, and an extension pipe that has one end connected to the grip pipe and the other end detachably connected to the main body to form an air path that communicates with the suction port body. The other end of the hose is detachably attached to the grip tube, and when the hose is attached to the grip tube, the air passage of the hose and the air passage of the extension tube are connected to the grip tube. A vertical vacuum cleaner characterized in that it communicates with each other.   The vertical vacuum cleaner according to claim 1, wherein the extension pipe is formed to be extendable and contractable in an axial direction thereof. The vertical vacuum cleaner according to claim 1 or 2, wherein a brush is provided at an end of the extension pipe on the side of the suction port or on an end of the other side of the hose.

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