JP6075466B2 - Floor suction tool and electric vacuum cleaner provided with the floor suction tool - Google Patents

Description

  The present invention relates to a floor surface suction tool capable of removing dust and the like attached to a built-in rotating brush, and a vacuum cleaner equipped with the floor surface suction tool.

A rotary brush is attached to the suction tool of the vacuum cleaner, and this rotary brush rotates and sucks up and sucks dust on the cleaning surface, but if this rotary brush gets tangled with hair, threads, etc. It will no longer function as a rotating brush.
In order to solve such problems, first, the rotating brush is removed from the suction tool, and the ring-shaped dust removing means provided on the outer periphery of the rotating brush is slid along the axial direction (longitudinal direction) of the rotating brush. In the dust removing means, since the guide is guided in the spiral groove of the hollow base and slides along the axial direction (longitudinal direction) of the rotating brush, the cutter blade provided in the dust removing means contacts the groove. On the other hand, there has been proposed one that moves spirally along the axial direction (longitudinal direction) of the rotating brush to remove thread-like dust (see, for example, Patent Document 1).

  In addition, a rotary brush that can be attached and detached by movement in the axial direction is provided in the suction tool, and dust removing means is provided in the rotary brush penetrating portion of the partition wall that partitions the suction tool, and the dust is removed by pulling out the rotary brush. It has been proposed that the removing means scrapes the wound thread, hair, and cotton dust by squeezing the brush part (see, for example, Patent Document 2).

Japanese Unexamined Patent Publication No. 2008-259718 Japanese Unexamined Patent Publication No. Sho 62-217930

The electric vacuum cleaner suction tool described in Patent Document 1 described above, and remove the rotary brush, in order to perform the work removed by dust removing, or worse wind the dust when sliding the dust removing means, by hand directly It was not hygienic because it touched the dust.

  Moreover, in the suction tool of the vacuum cleaner described in Patent Document 2, the dust removing means is a brush hair, and is in a direction to be pulled out at the time of removal, so that the dust flows out of the suction tool or the rotating brush However, there is a problem that the pulling force becomes large.

  The present invention has been made to solve the above-described problems, and removes dust entangled with the rotating brush in a sanitary manner with a light force without polluting hands and without raising dust. The purpose is to obtain a vacuum cleaner suction tool.

The floor suction tool of the present invention that solves the problem includes a case that forms an outer shell, and a rotating brush that is rotationally driven by a drive unit in the case and holds the cleaning body on the cylindrical base body via the cleaning body holding unit. An opening for attaching or removing the rotating brush to or from the case is formed on the side of the case. When attaching to the case, the rotating brush is inserted from one end to the attachment position through the opening and removed. In this case, the gripper is pulled out from the opening from the mounting position, and a gripping part is provided at one end for mounting or detaching in the case, and the cylindrical base of the rotating brush extends in the axial direction. A groove part and a cylindrical part are formed, and a dust removing means is provided inside the case for removing dust adhering to the rotating brush when the rotating brush is removed. Is, the dust removing means, have a blade for cutting the dust tangled the rotary brush is formed in a substantially same shape as the gap is a groove between the between the cleaning element of the rotary brush or the cleaning element holding portion, in the gap The remover has a remover guided in the axial direction of the rotating brush in a positioned state, and the remover is provided corresponding to the groove portion and provided with a protruding portion extending in the axial direction of the rotating brush. upper surface facing the surface thereof has an inclined surface inclined in a direction away from the cylindrical body towards the tip to the root, the blade is shall be placed on the upper surface of the protrusion.

  According to the present invention, dust such as lint and hair entangled around the rotating brush is not cut off by the blade of the dust removing means when the rotating brush is removed from the floor suction tool. The dust can be easily removed, and the maintainability is improved.

It is a schematic diagram which shows the state which connected the floor surface suction tool of the vacuum cleaner which concerns on Embodiment 1 of this invention to the vacuum cleaner main body. It is a perspective view of the floor suction tool of the electric vacuum cleaner concerning Embodiment 1 of the present invention. It is a top view of the floor surface suction tool of the electric vacuum cleaner which concerns on Embodiment 1 of this invention. It is a bottom view of the floor suction tool of the electric vacuum cleaner which concerns on Embodiment 1 of this invention. It is a perspective view of the state where the upper case of the floor suction tool of the electric vacuum cleaner concerning Embodiment 1 of the present invention was removed. It is the perspective view seen from the case lower surface side of the state which removed the rotation brush of the floor surface suction tool of the vacuum cleaner which concerns on Embodiment 1 of this invention. (A) Schematic diagram of the driving force transmission structure of the rotating brush of the floor suction tool of the vacuum cleaner according to the first embodiment of the present invention, (b) a cross-sectional view of the main part showing the connection state of the motor and gear, (c) FIG. 4 is a cross-sectional view of a principal part showing a connected state of a gear and a rotating brush bearing part. It is an external view of the rotating brush of the floor surface suction tool of the electric vacuum cleaner which concerns on Embodiment 1 of this invention. It is a perspective view of the state before the rotary brush attachment of the floor surface suction tool of the vacuum cleaner which concerns on Embodiment 1 of this invention. It is a principal part enlarged view of the opening periphery vicinity for the rotation brush attachment of the floor surface suction tool of the vacuum cleaner which concerns on Embodiment 1 of this invention. (A) The bottom view of the state just before mounting | wearing of a rotating brush and a bearing part, (b) The bottom view of the mounting state of a rotating brush and a bearing part. (A) The perspective view seen from the rotating brush side of the remover which is dust removal means, (b) The side view of the remover which is dust removal means. It is a figure explaining the attachment method of the rotating brush of the floor surface suction tool of the vacuum cleaner which concerns on Embodiment 1 of this invention. It is a figure explaining the attachment method of the rotating brush of the floor surface suction tool of the vacuum cleaner which concerns on Embodiment 1 of this invention. (A) Main part sectional drawing which shows the latch release state of the latching part of the case of the state before latching a rotating brush in an attachment position, and the latching convex piece of a holding part, (b) Attachment position of a rotating brush It is principal part sectional drawing which shows the latching state of the latching | locking part of the case of the state latched in the, and the latching convex piece of a holding part. (A) It is principal part sectional drawing of the grip part vicinity of the state before latching a rotating brush in an attachment position, (b) It is principal part sectional drawing of the grip part vicinity of the state which latched the rotating brush in the attachment position.

Embodiment 1
FIG. 1 is a schematic diagram showing a state in which the floor suction tool of the vacuum cleaner according to Embodiment 1 of the present invention is connected to the main body of the vacuum cleaner, and FIG. 2 is a diagram of the vacuum cleaner according to Embodiment 1 of the present invention. 3 is a perspective view of the floor surface suction tool, FIG. 3 is a top view of the floor surface suction tool of the electric vacuum cleaner according to Embodiment 1 of the present invention, and FIG. 4 is a floor surface of the electric vacuum cleaner according to Embodiment 1 of the present invention. FIG. 5 is a bottom view of the suction tool, FIG. 5 is a perspective view of the vacuum cleaner according to Embodiment 1 of the present invention with the upper case removed, and FIG. 6 is an electricity diagram according to Embodiment 1 of the present invention. The perspective view seen from the case lower surface side of the state which removed the rotating brush of the floor surface suction tool of a cleaner, Fig.7 (a) is the rotation brush of the floor surface suction tool of the vacuum cleaner which concerns on Embodiment 1 of this invention. Schematic diagram of the driving force transmission structure, FIG. 7B is a cross-sectional view of the main part showing the connection state of the motor and the gear, and FIG. It is a fragmentary cross-sectional view showing a coupled state.

In the respective drawings, the same or corresponding parts are denoted by the same reference numerals, and a part of the description is omitted. In addition, when explaining the common contents of a plurality of members with “a, b, etc.” added to the reference sign, “a, b, etc.” attached to the reference sign is deleted, The member may be described.
Hereinafter, the floor suction tool of the vacuum cleaner according to Embodiment 1 of the present invention and the configuration of the vacuum cleaner provided with the floor suction tool will be described with reference to FIGS. 1 to 7.

As shown in FIG. 1, reference numeral 300 denotes a vacuum cleaner, which includes a vacuum cleaner main body 200, a hose body 101, and a floor suction tool 100, and advances the floor suction tool 100 from the surface to be cleaned G in the traveling direction S. As a result, the dust is sucked and cleaned. An electric blower 201 for generating suction air for sucking dust from the surface to be cleaned G is provided in the cleaner body 200.

  Furthermore, a dust collection chamber 202 for collecting the sucked dust is provided in the cleaner body 200. For vacuum cleaner dust collection methods, a paper pack type that collects dust by collecting a bag-like filter called a paper pack in the dust collection chamber, or a cyclone that separates and collects dust in a swirling flow In the present invention, the dust collection method is not limited to a specific method and can be selected as appropriate.

  The hose body 101 is for handling the electric vacuum cleaner 300 including a flexible tube portion 102 having flexibility such as an accordion and an operation unit (not shown) for performing input for operating the electric vacuum cleaner 300. The handle portion 103 and the hard extension tube portion 104 having a telescopic structure, and the opposite end portion of the soft tube portion 102 connected to the handle portion 103 is detachable from the cleaner body 200. Connected.

  The floor suction tool 100 is detachably connected to the opposite end of the hose body 101 connected to the handle 103 of the hard extension tube 104.

  As shown in FIGS. 2 and 3, the main body case 3 that forms the outline of the floor suction tool 100 is composed of an upper case 1 and a lower case 2, which is horizontally long with respect to the traveling direction S, and is a rigid extension pipe portion. A joint pipe 4 provided with a connection portion 5 at one end for connecting to 104 is connected to a lower case 2 and an upper case 1 so that the connection portion 15 formed at the other end can be tilted. A pair of connecting cylindrical portions 15 a are formed on the end of the connecting portion 15 opposite to the connecting portion 5 on the left and right sides communicating with the inside of the connecting portion 15. It is sandwiched between them so that it can tilt.

  The lower case 2 is provided with a suction port 14, which is an opening for sucking dust existing on the surface to be cleaned G, on the surface side facing the surface to be cleaned G. The suction port 14 communicates with two suction ports 14a and 14b communicating with the connection cylindrical portions 15a and 15b, respectively. In the main body case 3, the rotary brush 6 is inserted into the back of the suction port 14 by bearings 10 described later at positions at both ends so as to protrude from the suction port 14 provided in the lower case 2 toward the surface G to be cleaned. It is supported and attached so that it can rotate freely.

  The bearing portion 10 is sandwiched between the lower case L8 and the lower case 2 inside the one side surface in the longitudinal direction of the case, and the remover 11 serving as dust removing means is sandwiched between the lower case 2 and the inner side of the other side surface in the longitudinal direction of the case. And are fixed by screws 37a and 37b. The configuration, attachment, and removal of the rotating brush 6 will be described in detail later.

Further, the lower case 2 is provided with rear wheels 12a1 and 12b1 formed by resin molding so as to protrude toward the surface G to be cleaned. Furthermore, central wheel 12a2,12b2 is provided in the vicinity of the lower surface at both ends of the floor suction tool in front of the rear wheels 12a1,12 b1. The rear wheels 12a1 and 12b1 and the middle wheels 12a2 and 12b2 are pivotally supported at a fixed position at a predetermined distance from the surface to be cleaned G, and the rotating brush 6 is in a stable position with respect to the surface G to be cleaned. Come to come.

  Therefore, unnecessary rotation pressure is not applied to the rotating brush 6 and the rotating brush 6 can be properly rotated, and dust can be scraped stably. In addition, since a predetermined distance from the surface to be cleaned G can be secured, the floor suction tool 100 can be moved smoothly. Here, the rear wheels 12a1 and 12b1 and the middle wheels 12a2 and 12b2 formed by resin molding are used for the stable operation of the rotating brush 6 and the movement of the floor suction tool 100, but a sliding member made of a raised cloth is used. In the present invention, the material is not limited to a specific member, and can be appropriately selected.

  The lower case 2 has a plurality of sliding members 21a and 21b made of a brushed cloth in order to smoothly move the floor suction tool 100 to the surface facing the surface to be cleaned G without damaging the surface to be cleaned G. Is provided. Further, a shielding member 23 made of a raised cloth is provided to prevent dust that has been bounced off by the rotating brush 6 and not sucked well from escaping to the outside and to block a part of the outer periphery of the suction port to increase the vacuum degree of suction. ing.

  Then, the switch case wheel 13 is provided on the lower case 2 so as to protrude toward the surface G to be cleaned. The switch wheel 13 is pivotally supported in the lower case 2 so as to protrude and retract, and protrudes most when the floor suction tool 100 is lifted from the surface G to be cleaned. When the floor suction tool 100 is to be placed on the surface to be cleaned G, it first comes into contact with the surface to be cleaned G, and when it is completely placed, it remains in the lower case 2 leaving a part of the wheel.

  A switch (not shown) for turning on and off the rotational drive of the rotary brush 6 is housed in a switch holder 20 described later and provided in the main body case 3 in conjunction with the protrusions and depressions. A switch (not shown) is turned on when the suction tool 100 is placed and the switch wheel 13 is submerged in the lower case 2, and the floor suction tool 100 is lifted from the surface G to be cleaned and the switch wheel 13 protrudes. In this state, the switch (not shown) is turned off so that the rotating brush is not idle idle and the user is not accidentally caught in the rotating brush to be driven. .

  Next, the structure in the floor suction tool 100 is demonstrated. As shown in FIG. 5, a motor 16 (not shown), which is a drive unit for driving the rotary brush 6 to rotate in the lower case 2, and a switch (not shown) for turning on / off the rotary drive of the rotary brush 6 described above. ) Is disposed.

  As shown in FIG. 7, the motor 16 is connected to the gear 18a by the first connecting belt 17, is integrally formed coaxially with the gear 18a, and the gear 18b having a smaller number of gears than the gear 18a is connected to the second connecting belt 17. The belt 19 is connected to the bearing unit 10 that holds the rotating brush 6. When the motor 16 is driven, the driving force is transmitted to the bearing unit 10 that supports the rotating brush 6 via the gears 18 a and 18 b. Will rotate.

  Next, the configuration of the rotating brush 6 will be described with reference to FIG. FIG. 8 is an external view of the rotating brush of the floor suction tool of the electric vacuum cleaner according to Embodiment 1 of the present invention.

  The rotating brush 6 includes a cylindrical portion 24a formed by resin molding, and five spiral groove portions 25 formed so as to be flush with the peripheral surface of the cylindrical portion 24a (a combination of the cylindrical portion 24a and the groove portion 25). A cleaning body supported via a cleaning body holding part 24b formed between adjacent groove parts 25, that is, the dust on the surface G to be cleaned embedded in the cleaning body holding part 24b. When attaching to or removing from a bristle brush 27 for frying, a guide portion 26 provided on one end side of the cylindrical base 24, and a main body case 3 provided on the other end side. It is comprised by the holding part 7 to hold | grip. The spiral groove 25 is formed at an equal angle in the circumferential direction. Further, the rotating brush 6 has a protrusion corresponding to the cleaning body holding part 24b between the dust removing means 11 (described later) and the cleaning body holding part 24b when the rotating brush 6 is attached to the main body case 3. A portion 24c is provided.

  The gripping portion 7 is provided with a locking projection piece 28 for locking to the main body case 3 at the time of attachment, and a lever 7a used for setting the locking state or the locking release state. The cleaning body is the bristle brush 27 in which the brush portions of the rotating brush are planted in rows. However, a blade-shaped member made of an elastic body such as rubber may be used and can be selected as appropriate. Moreover, although the bristle brush 27 was made into the 5-row structure embedded in the five groove parts, it is not limited to 5 rows and can be selected appropriately.

Next, attachment and removal of the rotating brush 6 will be described with reference to FIGS.
FIG. 9 is a perspective view of the floor suction tool of the vacuum cleaner according to Embodiment 1 of the present invention before the rotary brush is attached, and FIG. 10 is the floor suction tool of the vacuum cleaner according to Embodiment 1 of the present invention. FIG. 11A is a bottom view of a state immediately before mounting of the rotating brush and the bearing portion, and FIG. 11B is a mounting state of the rotating brush and the bearing portion. FIG. 12A is a bottom view, FIG. 12A is a perspective view seen from the rotating brush side of the remover that is dust removing means, FIG. 12B is a side view of the remover that is dust removing means, and FIG. 13 is an embodiment of the present invention. The figure explaining the attachment method of the rotary brush of the floor suction tool of the vacuum cleaner which concerns on FIG. 1, FIG. 14: demonstrates the attachment method of the rotary brush of the floor suction tool of the vacuum cleaner which concerns on Embodiment 1 of this invention. Figure 15 (a) shows the state before the rotating brush is locked in the mounting position. FIG. 15B is a cross-sectional view of the main part showing the unlocking state of the locking portion of the case in the state and the locking protrusion of the gripping portion, and FIG. FIG. 16A is a cross-sectional view of the main part in the vicinity of the gripping part in a state before the rotary brush is locked at the mounting position. (B) is principal part sectional drawing of the holding part vicinity of the state which latched the rotating brush in the attachment position.

(Installation)
As shown in FIG. 9, the rotating brush 6 is inserted and attached from the side surface direction of the floor suction tool 100. As shown in FIG. 10, an opening 29 for attaching the rotating brush 6 is formed on one side surface of the body case 3, a recess 30 is provided around the opening 29, and a convex shape 31 is provided in the recess 30. It has been. As will be described later, in the state where the rotary brush 6 is inserted from the opening 29 and is locked at the mounting position of the floor suction tool 400, the outermost end of the lever 7a is in the direction of removing the rotary brush 6. The depth of the recess 30 is set so as to be located inside the outermost end of the side surface of the main body case 3 where the opening 29 is formed.

  At the back of the opening 29, a remover 11 is provided as dust removing means for removing dust entangled with the rotating brush 6. The remover 11 is made of resin, and has a hollow portion 34 as shown in FIG. 12, and has a hollow ring shape with a lower portion cut out, and the protruding portion 33 extending in the axial direction of the rotating brush 6 has an equal angle of 5 in the circumferential direction. One is provided. The positions of the protrusions 33 correspond to the positions of the five grooves 25 of the rotating brush 6 and are located in the gaps that are the grooves 25 between the bristle brushes 27 (cleaning bodies) of the rotating brush 6 or between the cleaning body holding parts 24b. Thus, it is guided in the axial direction of the rotating brush 6. Each protrusion 33 has substantially the same shape as the gap that is the groove 25 between the bristle brush 27 that is the cleaning body of the rotary brush 6 or between the adjacent cleaning body holding portions 24b, and faces the surface on the valley gap side. The upper surface to be inclined has an inclined surface that inclines in a direction away from the cylindrical base 24 from the tip toward the root.

  Of these five protrusions 33, a metal blade 33c is fixed to the protrusion 33 by press-fitting to the inclined part 33b on the upper surface of the protrusion 33 at the upper end from the tip of the protrusion 33 to the root. . The blade 33c is fixed so as to incline in a direction away from the cylindrical base 24 from the tip of the projection 33 toward the base. Moreover, you may form the shape of the blade 33c so that it may fold in a V shape in the middle from a front-end | tip to a root (valley shape). By configuring the blade 33c with a material different from that of the protrusion 33, the durability of the blade 33c is improved, and the wear of the blade 33c is reduced. Further, since the blade 33c is fixed by press-fitting, the blade 33c and the protrusion 33 can be manufactured even if they are made of different materials, and can be firmly fixed. In addition, the installation method of the blade 33c is not limited to this, You may comprise the blade 33c and the projection part 33 with the same material. There is an advantage that integral molding is possible and the manufacturing cost can be reduced. Further, the inner diameter of the remover 11 is smaller than the outer shape of the bristle brush 27 provided on the rotary brush 6 and is close to the hairline so as to scrape the bristle brush 27.

  The remover 11 is sandwiched between the upper case 1 and the lower cover R9 and is fixed to the floor suction tool 100. The remover 11 removes dust from the rotating brush 6 when it is removed. The dust removal will be described in detail in the description of the removal at a later stage.

  When the rotary brush 6 is to be inserted through the opening 29 as shown in FIG. 9, the rotary brush 6 passes through the hollow portion 34 of the remover 11 and is provided on the cylindrical base 24 of the rotary brush 6 as shown in FIG. The groove portion 25 and the protrusion portion 33 of the remover 11 are fitted to each other, and the protrusion portion 33 is fitted until it almost contacts the deepest portion of the groove portion 25. The bristle brush 27 is configured to pass while the protrusion 33 is provided.

  When the rotating brush 6 is further pushed in as shown in FIG. 11, the rotating brush 6 is moved to the bearing convex portion 10a of the bearing portion 10 sandwiched between the lower case 2 and the lower cover L8 and fixed with the screw 37b as described above. The guide part opening 26 a provided in the guide part 26 is fitted and supported, and both ends of the rotating brush 6 are supported by the remover 11 and the bearing part 10.

  As shown in FIG. 11A, the bearing projection 10a has a wedge shape that is divided into five equal parts in the circumferential direction. As shown in FIG. 9B, the guide portion opening 26a is also an opening having a shape divided into five equal parts in the circumferential direction, so that the driving force of the motor 16 transmitted to the bearing portion 10 is idle. It is reliably transmitted to the rotating brush 6 without rotating.

  Here, before the guide portion opening 26 a provided in the guide portion 26 of the rotary brush 6 is fitted to the bearing portion convex portion 10 a, the surface of the protrusion 33 that faces the cylindrical base 24 is the cylindrical portion of the rotary brush 6. It is set to be located at 24a. As a result, the rotating brush 6 is not locked to the protrusion 33 and can rotate around the central axis of the rotating brush 6. Therefore, even if the guide opening 26a is displaced around the central axis of the rotating brush 6 with respect to the bearing protrusion 10a, the rotating brush 6 rotates as the rotating brush 6 is pushed in, and the fitting of both becomes easy. .

  Further, since the rotating brush 6 is provided with a convex portion 24c between the dust removing means 11 and the cleaning body holding portion 24b when the rotating brush 6 is attached to the main body case 3, the rotating brush 6 is provided with the rotating brush 6 during cleaning. Even if the entangled dust moves to the dust removing means 11 side, it is caught on the convex portion 24c, and it can be prevented that the dust gets over the convex portion 24c and moves to the dust removing means 11. Accordingly, it is possible to prevent the rotation of the rotating brush 6 from being entangled with the dust removing means 11.

  In order to complete the insertion of the rotating brush 6 into the main body case 3, as shown in FIG. 15A, the guide concave portions 38a and 38b provided in the main body case 3 and the locking convex pieces provided in the gripping portion 7 are used. When inserted in accordance with the position 28, the lever 7a comes to the pre-attachment position as shown in FIG.

  However, in this state, the rotating brush 6 is only in the mounting position and is not yet fixed, and the gripping portion 7 protrudes from the side surface of the main body case 3 as shown in FIG. As shown in FIG. 16 (a), the gripping portion 7 of the rotating brush 6 is applied outwardly from the main body case 3 by an urging means 39 made of an elastic body having a spring shape, for example. Because of this, the protrusion 7 makes it easier for the gripping part 7 to grip. In addition, the protrusion allows the user to visually understand that the installation is not completed.

  In order to fix the rotating brush 6, the gripping portion 7 is further pushed to the position where the lever 7a contacts the recess 30 against the urging force of the urging means 39 (state of FIG. 13B), and FIG. As shown in FIG. 13B, the lever 7a is moved to the attachment position side (state shown in FIG. 13C).

  Then, as shown in FIG. 15B, the locking convex piece 28 of the gripping portion 7 is fitted into the groove-shaped locking portion 32 shown in FIG. 10, and the rotary brush 6 is fixed and moved from its position. It will be in a state that can not be taken out. Thus, in the state where the rotating brush 6 is inserted from the opening 29 and is locked at the mounting position of the floor suction tool 400, the outermost end of the lever 7a is in the direction of removing the rotating brush 6, The depth of the concave portion 30 is set so as to be located inside the outermost end portion of the side surface of the main body case 3 where the opening 29 is formed. Therefore, furniture or walls do not collide with the lever 7a during cleaning, and the locking of the rotating brush 6 is not accidentally released, and a floor surface suction tool that is easy to use can be obtained.

  Furthermore, the convex shape 31 provided in the concave portion 30 is located between the mounting position where the lever 7a moves and the position before mounting, and the convex shape 31 moves (turns) the lever 7a toward the mounting position. Then, since the lever 7a protrudes from the position closest to the concave portion 30 of the main body case 3, the lever 7a contacts the convex shape 31 and rides on with resistance, and moves to the mounting position so as to get over it. become.

  Therefore, the convex shape 31 provides resistance when the lever 7a moves to the removal position, so that the convex shape 31 prevents the lever 7a from moving to an unintended removal position and is difficult to come off. This completes the installation.

  Thus, when the rotating brush is locked in the mounting position, the outermost end of the lever in the direction of removing the rotating brush is more than the outermost end of the side surface of the case where the opening is formed. Since it is located inside, furniture and walls are prevented from colliding with the lever during cleaning and the rotary brush is prevented from being erroneously released, and a floor suction tool that is easy to use can be obtained.

  In addition, a recess is formed around the opening on the side surface where the opening of the case is formed, and when the rotating brush is locked at the mounting position, the lever is accommodated in the recess and the rotating brush is removed. Since it is covered by the side surface of the case in the orthogonal direction, it is suppressed that furniture and walls collide with the lever from the front or rear direction during cleaning, and the release of the rotating brush is erroneously released. An easy-to-use floor suction tool is obtained.

(Removal)
As shown in FIG. 14A, the lever 7a is moved to the removal position while resisting the resistance of the convex shape 31 as opposed to the attachment. When the lever 7a comes to the removal position, the latching state of the latching portion 32 of the main body case 3 and the latching convex piece 28 of the gripping portion 7 is released as shown in FIG. 15A, and the biasing force of the biasing means 39 is released. 13 (a), (b), and FIG. 16 (a), the grip portion 7 protrudes from the side surface of the main body case 3, so that the grip portion 7 can be easily gripped when the rotary brush 6 is taken out. Good workability.

  As described above, the rotating brush is provided with the urging means for urging the grip portion in the direction of removing the rotating brush, and the locking portion for locking the rotating brush at the mounting position is provided inside the opening. The gripping portion is provided with a locking protrusion that is accommodated in the case for engaging the locking portion and locking the rotary brush in the mounting position, so that it becomes easy to grip the gripping portion. Since the rotating brush can be easily taken out, the workability can be improved, and the maintainability of the rotating brush is improved.

  When the rotary brush 6 is pulled out from the main body case 3 with the gripping portion 7, the groove 25 provided on the cylindrical base 24 of the rotary brush 6 and the protrusion 33 of the remover 11 are formed as shown in FIG. Since it fits into the deepest part of the groove 25 until it is almost in contact, dust such as lint and hair entangled around the cleaning body 27 of the rotary brush 6 and the groove 25 is rotated by the protrusion 33. It is scraped off from the brush 6 and removed.

That is, dust such as lint and hair entangled so as to wrap around the cleaning body 27 and the groove 25 of the rotary brush 6 is scooped by the inclined portions 33a and 33b from the tip of each protrusion 33, and the root of each inclined portion. As it goes to the side, it is moved away from the cleaning body 27 and the groove 25. The dust separated to the outside is guided and cut along the blade 33c provided on the inclined portion 33b. At this time, the dust entangled with the rotating brush can be applied to the blade in a stretched state, and the dust is easily cut. Furthermore, since the blade 33c is inclined in the direction away from the cylindrical base body 24 from the tip of the protrusion 33 toward the root, the dust 33 moves so as to rub along the blade 33c and easily cuts the dust. The dust remaining without being cut is finally cut without leaving the blade 33c at the corner with the wall 40. Further, since the remover 11 is fixed to the floor suction tool 400, the blade 33c and the wall 40 are fixed to the dust entangled with the rotating brush 6, so that it is easy to cut the dust.

  As described above for the bristle brush 27, the inner diameter of the remover 11 is smaller than the outer shape of the bristle brush 27 provided on the rotating brush 6 and close to the hairline, so the bristle brush 27 is scraped off by the wall 40, Dust entangled with the bristle brush 27 is scraped off and removed. In this way, dust entangled with the rotating brush 6 in the process of removal can be removed without touching with hands, so that it is hygienic and easy to maintain.

  As described above, in the floor surface suction tool according to Embodiment 1 of the present invention, the outer case and the drive unit are rotationally driven in the case, and the cleaning body is held on the cylindrical base body via the cleaning body holding part. An opening for attaching or removing the rotating brush to or from the case is formed on the side surface of the case, and the rotating brush is attached to the case through the opening from one end side when attached to the case. When removing, it is pulled out from the opening from the mounting position, and a gripping part is provided at one end for gripping when mounting or removing in the case. Is provided with a groove part and a cylindrical part that extend in the axial direction, and the dust inside the case is removed when the rotary brush is removed. Since the dust removing means has a blade for cutting the dust entangled with the rotating brush, dust such as lint and hair entangled so as to wrap around the rotating brush is covered with the rotating brush. When it is removed from the surface suction tool, it is completely cut by the blade of the dust removing means, so that the dust can be easily removed from the rotating brush and the maintainability is improved.

Further, the dust dust removal means is formed in a substantially same shape as the gap is a groove between the between the cleaning element of the rotary brush or the cleaning element holding portion, is guided in the axial direction of the rotating brush in a state located in the gap There is a remover, and the remover is arranged corresponding to the groove and is provided with a protrusion extending in the axial direction of the rotating brush, and the protrusion has an upper surface facing the groove gap side surface from the tip toward the root. Since it has an inclined surface that inclines away from the cylindrical base, it can be applied to the blade in a state where dust entangled with the rotating brush is stretched, and it is easy to cut the dust and easily entangle the dust entangled with the rotating brush with a light force. Can be removed.

  Further, since the blade is inclined in the direction away from the cylindrical base body from the tip of the protrusion to the base, it becomes easy to cut the dust entangled with the rotating brush, and the dust can be easily removed.

  In addition, since a wall portion that protrudes in the protruding direction of the protruding portion from the base of the inclined surface of the upper surface of the protruding portion where the blade is disposed is scooped by the inclined portion from the tip portion of each protruding portion, the root of each inclined portion As it goes to the side, it is moved away from the cylindrical base and the cleaning body. The dust separated to the outside is guided and cut along the blade provided in the inclined portion, and the dust remaining without being cut is finally cut at the corner between the blade and the wall portion.

  In addition, since the blade is made of a material different from that of the protrusion, the durability of the blade is improved and the wear of the blade is reduced.

  In addition, since the blade is fixed to the protrusion by press fitting, the blade and the protrusion can be manufactured even if they are made of different materials, and can be firmly fixed.

  In addition, since the remover is fixed and arranged inside the case, the blade and the wall are fixed to the dust entangled with the rotating brush, so that it is easy to cut the dust.

  In addition, the protrusion is positioned on the cylindrical portion of the rotating brush before the other end with respect to one end where the gripping portion of the rotating brush is provided is fitted to the convex portion formed on the bearing portion of the case. It becomes a state which can be freely rotated around the central axis of the rotating brush without being locked by. Therefore, even if the guide opening is displaced around the central axis of the rotating brush with respect to the bearing protrusion, the rotating brush rotates as the rotating brush is pushed in, and the fitting of both becomes easy.

  In addition, when the rotary brush is attached to the case, the remover and the blade are disposed at a position that is not visually recognized by the gripping portion of the rotary brush and the case, so that the operator of the vacuum cleaner touches the blade accidentally. It is easy to use.

  Further, since the rotating brush has a convex portion between the dust removing means when the rotating brush is attached to the case and the cleaning body holding portion, the dust entangled with the rotating brush during cleaning is removed by the dust removing means. Even if it moves to the side, it can be caught on the convex part, and it can be prevented from moving over the convex part to the dust removing means. Accordingly, it is possible to prevent the rotation of the rotating brush from stopping due to the dust getting entangled with the dust removing means.

  In the vacuum cleaner in Embodiment 1 of this invention, it connects between said floor surface suction tool, this floor surface suction tool, the electric blower which generate | occur | produces suction | inhalation air, and between a floor surface suction tool and an electric blower. Since it is provided with a dust collecting chamber that is arranged and collects sucked dust, it is easy to remove dust entangled with the rotating brush, and an easy-to-use vacuum cleaner can be obtained.

  In the first embodiment of the present invention, the driving method of the rotary brush has been described by the motor driving method. However, the rotating brush driving method is not limited to the motor driving method, and may be an air turbine method using the suction air of an electric blower. Can be selected as appropriate.

  As described above, the floor surface suction tool according to the present invention can be used in a system that removes dust entangled with the rotating brush with a light force, without sanitizing hands, without raising dust. .

DESCRIPTION OF SYMBOLS 1 Upper case, 2 Lower case, 3 Main body case, 4 Joint pipe, 5 Connection part, 6 Rotating brush, 7 Holding part, 7a Lever, 8 Lower cover L, 9 Lower cover R, 10 Bearing part, 10a Bearing part convex part 11 Remover (dust removing means),
12a1 rear wheel, 12b1 rear wheel, 12a2 middle wheel, 12b2 middle wheel, 13 switch combined wheel, 14 suction port, 14a suction port, 14b suction port, 15 coupling portion, 15a connection cylindrical portion, 15b connection cylindrical portion, 16 motor ( Drive portion), 17 first connecting belt, 18a gear, 18b gear, 19 second connecting belt, 20 switch holding portion, 21a sliding member, 21b sliding member, 23 shielding member, 24 cylindrical base, 24a cylindrical portion, 24b Cleaning body holder,
24c convex part, 25 groove part, 26 guide part, 26a guide part opening, 27 bristle brush (cleaning body), 28 latching convex piece, 29 opening part, 30 concave part, 31 convex shape, 32a latching part, 32b latching part 33 Protruding part, 33a inclined part, 33b inclined part, 33c blade, 34 hollow part, 37a screw, 37b screw, 38a guide recessed part, 38b guide recessed part, 39 biasing means, 40 wall part, 100 floor surface suction tool, 101 Hose body, 102 soft tube portion, 103 handle portion, 104
Hard extension pipe, 200 Vacuum cleaner body, 201 Electric blower, 202 Dust collection chamber, 300 Vacuum cleaner, 400 Floor suction tool, G surface to be cleaned, S Traveling direction

Claims (10)

An outer case,
A rotating brush that is rotationally driven by the drive unit in the case and holds the cleaning body on the cylindrical base via the cleaning body holding unit;
With
On the side surface of the case, an opening for attaching or removing the rotary brush in the case is formed,
The rotating brush is inserted from one end side to the mounting position through the opening when attached to the case, and is pulled out of the opening from the mounting position when removed. Alternatively, a grip portion for gripping when removing is provided at one end, and the cylindrical base of the rotary brush is provided with a groove portion and a cylindrical portion formed to extend in the axial direction,
Inside the case is provided with a dust removing means for removing dust adhering to the rotating brush when the rotating brush is removed,
The dust removing means, have a blade for cutting the dust tangled with the rotating brush, is formed into substantially the same shape and the gap is a groove between the cleaning element or between the cleaning element holding portion of the rotary brush, the A remover guided in the axial direction of the rotating brush in a state of being located in the gap;
The remover is provided corresponding to the groove and provided with a protrusion extending in the axial direction of the rotating brush,
The protrusion has an inclined surface in which an upper surface facing the groove gap side surface is inclined in a direction away from the cylindrical base body from the tip toward the root,
The blade, the floor suction tool according to claim Rukoto disposed on an upper surface of the protrusion. 2. The floor surface suction tool according to claim 1 , wherein the blade is inclined in a direction away from the cylindrical base body from a tip of the protrusion to a base. The floor surface suction tool according to claim 1 or 2 , further comprising a wall portion that protrudes in a protruding direction of the protruding portion from a base of an inclined surface on an upper surface of the protruding portion on which the blade is disposed. . The blade, the floor suction tool as claimed in any one of claims 1 to 3, characterized in that said protrusion is a different material. The floor suction tool according to claim 4 , wherein the blade is fixed to the protrusion by press-fitting. The remover floor suction tool according to any one of claims 1 to 5, characterized in that it is arranged to be fixed inside the casing. The protrusion is positioned on the cylindrical portion of the rotating brush before the other end of the rotating brush with respect to one end where the grip portion is provided is fitted to a convex portion formed on the bearing portion of the case. The floor surface suction tool according to claim 6 . The remover and the blade, when the rotary brush is attached to the case, according claim 1, characterized in that it is arranged to not visually recognized position by said holding part and said casing of said rotary brush Item 8. The floor suction device according to any one of items 7 to 9 . The rotary brush, the rotary brush of claims 1 to 8, characterized in that the protrusions are provided between the dust removing means and the cleaning element holding portion when attached to the casing The floor surface suction tool as described in any one of Claims. The floor surface suction tool according to any one of claims 1 to 9 ,
An electric blower that communicates with the floor suction tool and generates suction air;
A vacuum cleaner provided between the floor suction tool and the electric blower and provided with a dust collection chamber for collecting sucked dust.

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