JP6248668B2 - Floor suction tool and electric vacuum cleaner provided with the floor suction tool - Google Patents

Description

  The present invention relates to a floor suction tool for a vacuum cleaner, and more particularly to a floor suction tool provided with a rotating brush, and further to a vacuum cleaner provided with the floor suction tool.

  Conventionally, as a floor surface suction tool equipped with a rotating brush, it is known that the rotating brush can be removed to remove dust such as hair and lint entangled with the rotating brush, and a lid provided on the case Removing the rotating brush from the case (see, for example, Patent Document 1) or removing the lid that closes the opening provided in the case, and pulling out the rotating brush in the case from the opening There is a known configuration (see, for example, Patent Document 2).

JP-A-6-86742 (page 4, FIG. 3) JP 63-197426 (3rd page, FIG. 1)

  However, in the conventional floor suction tool described in Patent Document 1, when taking out the rotating brush, the hand must hold the brush portion where the dust of the rotating brush is entangled, and the brush before removing the dust must be touched. There was a big hygiene problem that it had to be. Moreover, in the conventional floor surface suction tool described in Patent Document 2, since there is a rotating brush in the back of the lid and it is pulled out from the opening, it is difficult to hold and remove because the portion having the rotating brush is configured smaller than the opening. There was a problem. Furthermore, there was a possibility that it would be lost because the lid was removed.

  The present invention has been made to solve the above-described problems, and provides a floor suction device that improves hygiene when removing the rotating brush, facilitates removal of the rotating brush from the case, and is easy to use. For the purpose.

The floor surface suction tool of the present invention that solves the problem includes a case forming an outer shell and a rotating brush that is driven to rotate by a drive unit in the case, and the rotating brush is attached to the side of the case in the case. An opening for removal is formed, and a locking portion for locking the rotating brush at the mounting position is provided inside the opening. When the rotating brush is mounted to the case, the rotating brush is mounted from the one end side through the opening. When it is removed, it is pulled out from the opening from the mounting position. A part for gripping when mounting or removing in the case is exposed outside and the other part is accommodated in the case. A gripping portion is provided, and a lever for locking the rotary brush to the mounting position or releasing the locking to the removal position with respect to the case protrudes in the circumferential direction of the gripping portion. When the rotating brush is locked at 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. A recess is formed around the opening on a side surface of the case where the opening is formed, and when the rotating brush is locked at the mounting position, the lever is in the recess. It is accommodated and covered by the side surface of the case in a direction orthogonal to the direction in which the rotating brush is removed .

  According to the present invention, since the grip portion for gripping the rotating brush from the inside of the case is provided, the brush before removing the dust when it is taken out can be prevented from being touched, and hygiene is improved. In addition, since the lever for locking the unlocking brush to the mounting position or releasing the locking of the rotating brush from the case is provided so as to protrude in the circumferential direction of the gripping portion, It becomes easy to lock and release the lock. In addition, when the rotating brush is locked in the mounting position, the outermost end of the lever is inward of the outermost end of the side surface of the case where the opening is formed in the direction of removing the rotating brush. Since it is located, furniture and walls do not collide with the lever during cleaning and the rotating brush is not accidentally released, and a floor suction tool that is easy to use can be obtained.

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. 7C is the gear and the rotating brush bearing part. 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, and the connecting cylindrical portion 15 a is connected to the upper case 1 and the lower case 2. 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 intake port 14 communicates with two intake ports 14a and 14b that communicate with the connecting cylindrical portions 16a 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. Further, middle wheels 12a2 and 12b2 are provided in front of the rear wheels 12a1 and 12a2 in the vicinity of both ends of the lower surface of the floor suction tool. The rear wheels 12a1 and 12b1 and the middle wheels 12a2 and 12b2 are pivotally supported in 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 10 that holds the rotating brush 6. When the motor 16 is driven, the driving force is transmitted to the bearing 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 convex portion corresponding to the cleaning body holding portion 24b between the dust removing means 11 (described later) and the cleaning body holding portion 24b when the rotating brush 6 is attached to the case 3. 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 convex piece of the gripping portion, and FIG. 15B is the locking portion of the case in a state where the rotating brush is locked at the mounting position. 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 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. 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 33b 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 33b 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 the 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 case 3, the rotating brush 6 is entangled with the rotating brush 6 during cleaning. Even if the dust moves to the dust removing means 11 side, it is caught on the convex portion 24c, and can be prevented from moving over the convex portion 24c 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. This is because the gripping portion 7 of the rotating brush 6 is directed outward from the main body case 3 by the biasing means 39 made of, for example, a spring-spring-shaped elastic body with respect to the cylindrical member 24a as shown in FIG. Since it is biased, the protruding portion makes it easier for the gripping portion 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. Then 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 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 substantially contacts, dust such as lint and hair entangled around the cylindrical member 24a of the rotating brush 6 is caused by the projection 33 to rotate around the rotating brush 6. The cylindrical member 24 is scraped off 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. Since the blade 33c is inclined in the direction away from the cylindrical base 24 from the tip of the projection 33 toward the base, the blade 33c 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, 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 close to the hairline, so that the bristle brush 27 is scraped off by the outer peripheral 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 first embodiment of the present invention, the outer case and the rotating brush that is driven to rotate by the drive unit are provided in the case, and the rotating brush is attached to the side of the case in the case. Alternatively, an opening for detaching is formed, and a locking portion for locking the rotating brush at the mounting position is provided inside the opening, and the rotating brush is attached from one end side through the opening when attached to the case. It is inserted to the position, and when it is removed, it is pulled out from the opening from the mounting position, and when attaching to or removing from the case, a part for gripping is exposed outside the case, and the other part is inside the case A gripping portion is provided, and a lever for locking the rotary brush to the attachment position or releasing the lock to the removal position with respect to the case protrudes in the circumferential direction of the gripping portion. When the rotating brush is locked in the mounting position, the outermost end of the lever is the outermost end of the side surface of the case where the opening is formed in the direction of removing the rotating brush. Since it is located inside the unit, furniture or walls do not collide with the lever during cleaning and the rotary brush is not accidentally 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. Moreover, since the breakage of the lever due to the collision is suppressed, a floor surface suction tool that is easy to use can be obtained. Further, since the upper surface of the lever is covered with the case, the shape of the floor suction device viewed from the upper surface is symmetrical, and a floor suction device that does not impair the beauty is obtained.

  Further, since the rotating brush is provided with a biasing means for biasing the gripping portion in the direction of removing the rotating brush, the gripping portion 7 is easily gripped and the rotating brush 6 is easily picked up, thereby improving workability. Therefore, the maintainability of the rotating brush 6 is improved. In addition, a locking portion for locking the rotating brush at the mounting position is provided inside the opening, and the gripping portion is a case for engaging the locking portion to lock the rotating brush at the mounting position. Since the latching convex piece accommodated in is provided, it is possible to prevent the rotating brush from popping out by the biasing 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. It is equipped with a dust collection chamber that collects sucked dust, so that furniture and walls do not collide with the lever during cleaning and the rotating brush is not accidentally unlocked, making it easy to use A vacuum cleaner is 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 appropriately selected.

  DESCRIPTION OF SYMBOLS 1 Upper case, 2 Lower case, 3 Body case, 4 Joint pipe, 5 Connection part, 6 Rotating brush, 7 Gripping part, 7a Lever, 8 Lower cover L, 9 Lower cover R, 10 Bearing part, 10a Bearing part convex part , 11 Remover (dust removal means), 12a1 rear wheel, 12b1 rear wheel, 12a2 middle wheel, 12b2 middle wheel, 13 switch wheel, 14 suction port, 14a suction port, 14b suction port, 15 coupling portion, 15a connecting cylinder 15b connecting cylindrical part, 16 motor (driving part), 17 first connecting belt, 18a gear, 18b gear, 19 second connecting belt, 20 switch holding part, 21a sliding member, 21b sliding member, 23 shielding member, 24 cylindrical base, 24a cylindrical part, 24b cleaning body holding part, 24c convex part, 25 groove part, 26 guide part, 2 a Guide part opening, 27 Bristle brush (cleaning body), 28 Locking convex piece, 29 Opening part, 30 Recessed part, 31 Convex shape, 32a Locking part, 32b Locking part, 33 Protruding part, 33a Inclining part, 33b Inclining Part, 33c blade, 34 hollow part, 37a screw, 37b screw, 38a guide concave part, 38b guide concave part, 39 biasing means, 40 wall part, 100 floor surface suction tool, 101 hose body, 102 soft pipe part, 103 handle Part, 104 rigid extension pipe part, 200 vacuum cleaner main body, 201 electric blower, 202 dust collecting chamber, 300 vacuum cleaner, 400 floor surface suction tool, G surface to be cleaned, S traveling direction.

Claims (3)

An outer case,
A rotating brush that is driven to rotate by a drive unit in the case,
An opening for attaching or removing the rotating brush in or out of the case is formed on a side surface of the case, and an engaging portion for engaging the rotating brush at an attachment position is provided inside the opening.
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. Or a part for gripping when removing is provided outside the case, and a grip part is provided in which the other part is accommodated in the case,
The gripping portion is provided with a lever for locking the rotating brush to the mounting position at the mounting position or releasing the locking at the detaching position with respect to the case so as to protrude in the circumferential direction of the gripping portion,
When the rotating brush is locked at the mounting position, the outermost end of the lever is the outermost end of the side surface of the case where the opening is formed in the direction of removing the rotating brush. Located inside ,
A recess is formed around the opening on a side surface of the case where the opening is formed, and when the rotary brush is locked at an attachment position, the lever is accommodated in the recess and the rotation is performed. A floor surface suction tool, wherein the floor surface suction tool is covered with a side surface of the case in a direction orthogonal to a direction in which the brush is removed . The rotating brush is provided with an urging means for urging the grip portion in the direction of removing the rotating brush,
Inside the opening is provided a locking portion for locking the rotating brush at the mounting position,
The holding grip is provided with a locking protrusion that is accommodated in the case for engaging with the locking portion and locking the rotary brush in an attachment position. floor suction tool according to 1. The floor surface suction tool according to claim 1 or 2 ,
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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