JP3813811B2 - Suction port and vacuum cleaner - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention is an air circulation type in which the air discharged from the electric blower in the cleaner body is returned to the suction port body and cleaned while being circulated through the suction port body and the cleaner body, or such The present invention relates to a non-air circulation type electric vacuum cleaner that performs cleaning while exerting a suction force on a surface to be cleaned without air circulation, and also relates to a suction port used for these vacuum cleaners.
[0002]
[Prior art]
In the suction port body of the non-air circulation type vacuum cleaner, two rotating brushes having different rotation directions and rotation speeds are arranged in parallel to the floor surface, and both brushes are overlaid in the front-rear direction of the suction port body. By lapping, the dust on the floor surface can be effectively scraped and knocked out to Collectability Has been proposed (see Japanese Patent Application Laid-Open No. 5-111449).
[0003]
The two front and rear rotary brushes provided in the suction port body have a configuration in which a plurality of blades are twisted and attached to the outer periphery of the rotary rod (cleaning body shaft). As a result, the blades do not interfere with each other during rotation even though the rotation trajectories of the blades overlap, and the blades are effectively scraped and knocked out of the surface to be cleaned. .
[0004]
By the way, it is inevitable that cotton-like dust adheres to the rotating brush as it is cleaned. If the adhesion is left unattended, the cotton-like dust grows in a string shape and winds around the outer periphery of the rotating brush. It is known. Even in the suction port described in the above publication, it is no exception that cotton-like dust adheres to the rotating brush, and the publication discloses that the amount of dust attached to the blade of the rotating brush is reduced. No special measures are taken. For this reason, the suction port described in the above publication requires time and effort to frequently clean the rotating brush itself.
[0005]
In the suction port described in the publication, the material of the blade of the rotating brush is not mentioned, but for example, a so-called bristle-blade blade, which is formed by continuously connecting brush hairs in a row, for example, It is suitable for cleaning carpets and tatami mats, and a plate blade made of a molded product made of soft synthetic resin is suitable for cleaning flooring floors. Therefore, it is preferable that the rotating brush of the suction port body includes a bristle brush-like blade and a plate-like blade in terms of good compatibility with cleaning of various surfaces to be cleaned. Such a configuration is known in the art for suction ports with a single rotating brush.
[0006]
However, bristle brush-like blades are formed in a state where the tip edge is broken at the tip of many brush hairs Has been Therefore, cotton-like dust is easily attached as compared with the plate-like blade. Nevertheless, the conventional suction mouth with a rotating brush having both types of blades does not take any special measures to remove the attached cotton-like dust. It often takes time to clean the rotating brush itself.
[0007]
[Problems to be solved by the invention]
The problem to be solved by the present invention is: While improving dust removal performance An object of the present invention is to obtain a suction port body and a vacuum cleaner that can reduce the time and effort of cleaning a rotating cleaning body to which dust adheres during cleaning.
[0008]
[Means for Solving the Problems]
The present invention A cleaning body storage chamber having a dust removal opening facing the surface to be cleaned is provided in the main portion of the suction port, and two cleaning cleaning bodies that rotate in directions facing each other in the dust removal opening are accommodated side by side in the cleaning body storage chamber. A suction port body that sucks dust that has been scraped up from the surface to be cleaned with the rotation of the two rotary cleaning bodies and passed between the two rotary cleaning bodies into a joint pipe attached to the main portion of the suction port body. Assuming
[0009]
And in order to solve the said subject, invention of Claim 1 is the following. The cleaning body storage chamber is formed to have a size so as to cover the two rotary cleaning bodies and be filled with the two rotary cleaning bodies, and the main portion of the suction port is the cleaning body. A dust transfer chamber that extends in the same direction as the storage chamber extends and is provided above the cleaning body storage chamber, and the dust that is scraped up and provided on the cleaning body storage chamber through the two chambers. And a ventilation part that is provided at an end in the longitudinal direction of the dust transfer chamber and introduces air outside the cleaning body storage chamber to the dust transfer chamber without circulating the cleaning body storage chamber. Each of the joint pipes is attached to the main portion of the suction port body in communication with the dust transfer chamber at a position away from the ventilation portion so as to suck the airflow flowing in the longitudinal direction in the dust transfer chamber, At least one of the rotary cleaning bodies includes a cleaning element made up of one or more bristle brush blades, and the other rotary cleaning body consists of one or more plate blades. Cleaning element The bristle brush blade and the plate blade rotate so as to contact each other. Of the cleaning element when viewed from the axial direction. It is characterized by overlapping rotation trajectories.
[0010]
The invention of claim 1 can be applied to a suction port for an air-circulating or non-air-circulating electric vacuum cleaner. In the first aspect of the present invention, the rotary cleaning body has a blade of soft synthetic resin plate blade or brushed cloth blade or brush bristles as a cleaning element on the peripheral surface of the cleaning body shaft. A rotating cleaning body can be used in which bristle-brush blades formed in series are attached so as to protrude radially from the cleaning body axis, and each blade is attached to extend in parallel with the cleaning body axis. Or may be attached so as to be wound spirally around the cleaning body shaft, and a plurality of rows may be provided at intervals in the circumferential direction of the cleaning body shaft. In addition, the blade included in one of the rotary cleaning bodies may be a bristle brush-like blade. In this case, the blade provided in the other rotary cleaning body includes at least a plate-like blade. In addition, a rotary cleaning body in which different types of blades are alternately provided may be used as at least one of the rotary cleaning bodies.
[0011]
In the invention of claim 1, Since the dust swept up by the two rotary cleaning bodies is transferred to the suction side by the air flowing in a dust transfer chamber different from the cleaning body accommodation chamber, the end of the suction port body in the width direction where the suction force is difficult to spread Even if the dust is scraped up in step 1, it can be transferred to the air and sucked into the joint pipe, so that the dust removal performance can be improved. Furthermore, in the invention of claim 1, Since it has a cleaning member formed of a bristle brush blade and a plate blade, it can scrape dust with a bristle brush blade and dust with a plate blade against the surface to be cleaned. Good suitability for cleaning various surfaces to be cleaned. The two front and rear rotary cleaning bodies are driven to rotate while bringing the bristle brush blade provided on at least one of them into contact with the plate blade provided on the other, so that the bristle brush blade The plate-like blade having a lower waist becomes rubbed against the bristle brush blade as it strikes the bristle brush blade. Accordingly, the dust attached to the bristle brush blade during cleaning can be removed by the plate blade.
[0012]
The invention according to claim 2 is characterized in that the double-rotating cleaning body according to claim 1 is rotated in a direction facing each other in the dust opening.
[0013]
In this invention, the dust which two rotary cleaning bodies scoop up from a to-be-cleaned surface can be sent out upwards between these rotary cleaning bodies, and it is easy to determine the sending-out position of the dust swept up.
[0014]
According to a third aspect of the present invention, each of the rotary cleaning bodies according to the first or second aspect includes a first cleaning element comprising a bristle brush-like blade and a plate-like blade having a shorter output width than the first cleaning element. Each of the rotary cleaning bodies is viewed from the axial direction, and the rotation paths of the first cleaning element and the second cleaning element of the rotary cleaning bodies are overlapped with each other. The rotation trajectory of the second cleaning element of the rotary cleaning body is slightly in contact with or close to it.
[0015]
In this invention, due to the mutual relationship between the bristle brush blade and the plate blade that overlap each other, not only the dust attached to the bristle brush blade can be removed by the plate blade during cleaning. The plate blades of the front and rear rotary cleaning bodies that have lower back than the bristle brush blades do not touch each other, or even if they come into contact with each other, they touch slightly, so that these plate blades may be bent forcibly. Is prevented.
[0016]
The invention of claim 4 is characterized in that the rotational speeds of the rotary cleaning bodies according to any one of claims 1 to 3 are different from each other.
[0017]
In the present invention, due to the relative rotational speed difference between the two front and rear rotary cleaning bodies, a large number of opportunities for contact between the overlapping brush blade and the plate blade can be ensured.
[0018]
According to the fifth aspect of the present invention, the operation of the electric blower in the vacuum cleaner main body sucks dust on the surface to be cleaned together with air from the dust opening of the suction port body communicated with the dust collecting chamber of the vacuum cleaner main body. In the vacuum cleaner which captures the sucked dust through a filter in the dust collection chamber, the suction port body according to any one of claims 1 to 4 is used as the suction port body. Yes.
[0019]
In the invention of claim 5, the rotary cleaning body to which dust is attached during cleaning is provided with a suction port body that can remove dust attached to the bristle brush blade by the plate-like blade during cleaning. Therefore, it is possible to provide a non-air circulation type electric vacuum cleaner that can reduce the time and effort for cleaning.
[0020]
According to a sixth aspect of the present invention, the dust on the surface to be cleaned is taken from the dust collecting opening of the suction port connected to the dust collecting chamber of the main body of the vacuum cleaner incorporating the electric blower. The air is trapped through an indoor filter, passed through the filter and discharged from the electric blower to the suction port body, and the exhaust air is circulated between the cleaner body and the suction port body for cleaning. In the vacuum cleaner which performs, the suction inlet body as described in any one of Claims 1-4 was used for the said suction inlet body.
[0021]
According to the sixth aspect of the present invention, the air circulation type vacuum cleaner can be provided because the suction port body that can remove dust adhering to the bristle brush blade by the plate blade during cleaning is provided. .
[0022]
DETAILED DESCRIPTION OF THE INVENTION
The first embodiment of the present invention will be described below with reference to FIGS.
[0023]
FIG. 1 is a perspective view showing the entire air circulation type electric vacuum cleaner A. In FIG. 1, reference numeral 1 denotes a cleaning that can freely move on a surface to be cleaned by a pair of wheels 2 (only one is shown) and a swirling wheel (not shown). It is the machine body. The vacuum cleaner main body 1 has one end of a dust-collecting communication pipe 6 having a flexible dust-absorbing hose 4 and an inflexible dust-absorbing pipe 5 in a dust-collecting port 3 provided at the front thereof, that is, the dust-absorbing hose 4. A connecting cylinder 7 provided in the pipe is detachably fitted and connected, and a suction port body 8 to be described later is connected to the other end of the communication pipe 6, that is, the dust pipe 5. Air discharged from an electric blower described later is guided to the dust suction port 3 so as not to be mixed with dust suction air.
[0024]
A dust collection chamber having an upper opening is formed in the front portion of the cleaner body 1 configured by combining a plurality of synthetic resin case members, and a blower chamber is formed in the rear portion. A dust collection bag 9 as a filter is accommodated in the dust collection chamber so that it can be put in and out through the upper surface opening. The upper surface opening of the dust collection chamber is hermetically closed by a case lid 10 that can be opened and closed. An electric blower chamber, a cord reel (not shown), and the like are accommodated in a blower chamber in which the wheels 2 are rotatably attached to both sides. The air (exhaust gas) discharged from the electric blower 11 is configured to be guided to the dust suction port 3 through a return air passage member (not shown) arranged around one side of the dust collection chamber. In FIG. 1, reference numeral 13 denotes an insertion plug connected to the tip of a power cord wound on a cord reel.
[0025]
The dust suction hose 4 is a double pipe having a coaxial structure, for example, and is passed through a ventilation path formed in an inner space of the bellows-like inner pipe along with air circulating dust taken in by a suction port body 8 to be described later. The exhaust air led from the return air passage member is passed through the dust suction port 3 through an annular air passage formed between the inner tube and the bellows-like outer tube. The tip of the dust suction hose 4 is provided with a connecting tube 16 which is formed in a square shape and has a handle 15 protruding upward. The handle 15 starts various operations for the electric blower 11 and the like. A control switch 17 for hand operation for instructing the cancellation is provided.
[0026]
The two-piece jointed dust suction pipe 5 detachably connected to the connection cylinder 16 is made of a synthetic resin hard pipe, and is used to return the first pipe 5 a for sucking dust and the exhaust into the suction port body 8. Second pipe 5b. The first pipe 5a is communicated with the inner pipe of the dust suction hose 4 via the connection cylinder 16, and similarly the second pipe 5b is communicated with the annular air passage between the inner and outer pipes of the dust suction hose 4 via the connection cylinder 16. .
[0027]
Next, the suction port body 8 connected to the tip of the dust suction pipe 5 will be described with reference to FIGS. The suction port body 8 includes a synthetic resin joint pipe 21 as a connecting portion communicating with the cleaner body 1 side, a synthetic resin suction port main portion 22, and two front and rear rotary cleaning bodies 23 and 24. And the cleaning body drive device 25 is provided.
[0028]
The joint pipe 21 communicated with the dust suction port 3 of the cleaner body 1 by being detachably fitted to the tip of the dust suction pipe 5 is connected to the suction port body as shown in FIGS. 3, 7, and 8. A fixed portion 31 to the main portion 22 and a movable portion 32 rotatably connected to the fixed portion 31 are provided.
[0029]
The fixed portion 31 includes a fixed base tube 33 and a rotation tube 34 that can rotate along the axis of the base tube 33. The fixed part 31 is sandwiched from above and below by a main lower case and a main upper case, which will be described later, of the suction port main part 22 with the front end of the fixed base pipe 33 in a posture in which the axis line is along the front-rear direction. The suction port body main part 22 is fixed to the rear side and to the center part in the width direction of the main part 22.
[0030]
The fixed base tube 33 is formed by integrating the inner tube portion 33a with both front and rear ends opened, the outer tube portion 33b with the rear end opened, and both the tube portions 33a and 33b so as to close the front end of the outer tube portion 33b. And a front wall 33c connected to each other. The inner tube portion 33a is longer than the outer tube portion 33b. The front end portion of the inner pipe portion 33a protrudes forward through the front wall 33c and forms a suction inlet. The inner pipe portion 33a forms part of the suction air passage, and a passage 35 that forms part of the return air passage is formed between the inner and outer pipe portions 33a and 33b. One or more vent holes 36 (see FIG. 8) are opened in the front wall 33c.
[0031]
The front portion of the rotating tube 34 has a double tube structure. The front part is fitted to the outer circumferences of the inner and outer pipe parts 33a and 33b so as to be rotatable along their peripheral surfaces, and the rotary pipe 34 is attached to the fixed part 31 from the rear side. The rotating tube 34 has a recessed groove 37 opened from the rear surface to the upper surface at the rear portion thereof. A passage 38 (see FIG. 8) forming a part of the return air passage is formed in the rotating tube 34 so as to communicate with the passage 35.
[0032]
As shown in FIGS. 3 and 8, the movable portion 32 is communicated with a first pipe 41 communicated with the inner tube portion 33 a for sucking dust and a passage 38 for returning exhaust gas into the suction port main portion 22. And a second pipe 42. The first pipe 41 is detachably fitted to and connected to the first pipe 5 a of the dust suction pipe 5, and the connection portion 42 a at the rear end of the second pipe 42 is detachable to the second pipe 5 b of the dust suction pipe 5. Mated and connected.
[0033]
The front end portion of the movable portion 32 is housed in the recessed groove 37 and connected to the rear portion of the rotating tube 34. As shown in FIG. 8, this connection is such that a connecting cylinder portion 43 integrally projecting in opposite directions on both sides of the second pipe 42 can be rotated in a mounting hole 39 opened in the rear portion of the rotating tube 34. It is done by fitting. By this connection, the second pipe 42 and the passage 38 are communicated with each other via the connection cylinder portion 43, and the movable portion 32 has the dent over a range of approximately 90 ° centering on the attachment hole 39 and the connection cylinder portion 43. Attached so as to be movable along the groove 37.
[0034]
2, 45 indicates one of a pair of terminal pins for supplying electric power to the cleaning body drive device 25. These pins 45 absorb dust when the joint pipe 21 is connected to the dust suction pipe 5. It is connected to a terminal contact piece (not shown) provided at the tip of the pipe 5. As a result, the control switch 17 disconnects the cleaning body driving device 25 from the terminal pin 45 to the cleaning body driving device 25 through the electrical wiring 46 (see FIG. 3) and the electrical wiring (not shown) in the dust suction pipe 5. Electricity is made.
[0035]
As shown in FIGS. 3 to 5, the suction port main part 22 is formed to include a main part upper case 51, a main part lower case 52, and a main part middle case 53 sandwiched therebetween. The upper and lower cases 51, 52 of the main part are connected by screwing. The main part upper case 51 has a plurality of ribs on the back surface thereof, and is attached to the main part lower case 52 with these ribs pressing the main part middle case 53 from above. A plurality of running rollers 54 (see FIG. 9) are attached to the bottom wall of the main lower case 52. A circulation air blowing chamber 56, a cleaning body accommodation chamber 57, and a dust transfer chamber 58 are provided in the suction port body main portion 22.
[0036]
The circulation air blowing chamber 56 is formed in the internal space of the suction port main body 22 partitioned by the main upper and lower cases 51, 52 and the main middle case 53, and its front portion is above the dust transfer chamber 58. It is provided to cover.
[0037]
In the cleaning body storage chamber 57, the two rotary cleaning bodies 23, 24 are accommodated in parallel. The cleaning body accommodation chamber 57 has a dust removal opening 57a that opens to the bottom wall of the main lower case 52 and faces a surface to be cleaned such as a floor. The cleaning body accommodation chamber 57 is formed in a size that is substantially filled with the two rotary cleaning bodies 23 and 24 accommodated therein. For this reason, the inner surface of the storage chamber 57 does not form a relatively large gap between the rotation locus R1 of the two rotary cleaning bodies 23 and 24 arranged side by side (see the alternate long and short dash line in FIGS. 4 and 5). The rotary cleaning bodies 23 and 24 are provided so as to be close to each other so as to cover the front and rear and the upper side.
[0038]
3 to 6, reference numeral 59 denotes one or more suction holes provided obliquely through the front wall of the main lower case 52, and the rear end thereof is opened to the cleaning body accommodation chamber 57. The suction holes 59 are provided to suck dust at the corners of the wall when the front edge of the suction port 8 is pressed against the wall.
[0039]
The main middle case 53 is mounted on the front upper surface of the lower main case 52 so as to cover the ribs 52a to 52d that are substantially rectangular and continuous with each other from above. Is formed. The dust transfer chamber 58 provided on the upper side of the cleaning body accommodation chamber 57 and having substantially the same length as the accommodation room 57 has the same direction as the direction in which the cleaning body accommodation room 57 extends, that is, the cleaning body accommodation room 57. Similarly, the suction port body 8 extends in the width direction and communicates with the cleaning body accommodation chamber 57 through the communication port 61. The cross-sectional area of the dust transfer chamber 58 that appears when the suction port body 8 is cross-sectioned in the front-rear direction is smaller than the cross-sectional area of the similar cleaning body accommodation chamber 57. Thereby, the flow velocity of the air flowing through the dust transfer chamber 58 along the width direction of the suction port body 8 is also made faster than the flow velocity of the air flowing through the cleaning body accommodation chamber 57 along the width direction of the suction port body 8. Is set to
[0040]
The communication port 61 is also provided with substantially the same length as the cleaning body accommodation chamber 57 and extending in the width direction of the suction port body 8. The communication port 61 is partly partitioned between the cleaning body accommodation chamber 57 and the dust transfer chamber 58, and is provided in the front-rear direction of the suction port body 8 by a dust receiving shelf 62 provided as a rear bottom wall of the dust transfer chamber 58. It is narrowed down to. The communication port 61 faces the cleaning bodies 23, 24 directly above the pair of front and rear rotary cleaning bodies 23, 24. Therefore, the communication port 61 is opposed to the overlap portion of the rotary cleaning bodies 23 and 24. The facing wall portion of the main middle case 53 facing above the communication port 61 forms a guide wall 53a that is inclined so as to cover the communication port 61 as it goes upward. Therefore, the guide wall 53a is closer to the dust receiving shelf 62 as it goes upward.
[0041]
The dust receiving shelf 62 is provided so as to cover the rear rotary cleaning body 24 from above. The shelf 62 is inclined so as to gradually lower as it approaches the inner pipe portion 33a of the joint pipe 21. Therefore, in the present embodiment, the shelf 62 is inclined in a reverse C shape. This makes it easier to suck air containing dust into the inner pipe portion 33a.
[0042]
The front end edge 62a of the dust receiving shelf 62 is raised upward. The height of the upper end of the leading edge 62a is higher than the root of the dust receiving shelf 62, and the upper surface of the dust receiving shelf 62 is formed in a concave groove shape (saddle shape).
[0043]
A portion facing the fixed base tube 33 in the joint pipe 21 of the main case middle case 53, in this embodiment, a central portion in the longitudinal direction of the main case middle case 53 has a widening portion 53 b spreading upward and rearward. . The rear edge of the widened portion 53 b covers the front edge of the inner tube portion 33 a in the fixed base tube 33. Therefore, the intake inner pipe portion 33a and the dust transfer chamber 58 are communicated with each other via the widened portion 53b, and the intake inner pipe portion 33a and the cleaning body are communicated with each other via the dust transfer chamber 58 and the communication port 61. The middle portion in the longitudinal direction of the storage chamber 57 is in communication. In addition, as shown in FIGS. 3 and 7, the tip edge 62 a side portion of the dust receiving shelf 62 corresponding to the communication portion between the joint pipe 21 and the cleaning body accommodation chamber 57 is cut away. By the notch 63, the communication port 61 is enlarged to the rear side so as to partially approach the joint pipe 21 side.
[0044]
As shown in FIGS. 4 to 8, the main lower case 52 is provided with upward ribs 52e that face the ribs 52b and are substantially parallel to each other, and the dust 52 is between the opposing ribs 52b and 52e. An air passage 65 extending in the width direction of the suction port main body 22 is provided along the rear side of the transfer chamber 58. An intermediate portion in the longitudinal direction of the air passage 65 is communicated with the vent 36, and an upper portion of the air passage 65 is communicated with the circulation air blowing chamber 56. Therefore, the air discharged from the electric blower 11 and flowing out from the vent 36 flows along the air passage 65 in the width direction of the suction port main body 22 so as to bypass the rear side of the dust transfer chamber 58. The circulating air blowing chamber 56 is supplied and filled.
[0045]
As shown in FIGS. 5 to 7, vent portions 66 and 68 are opened on upper surfaces of both ends in the longitudinal direction of the middle case 53 in the main part so as to communicate with the rear side of both ends in the longitudinal direction of the dust transfer chamber 58. Further, on the upper surface of both ends in the longitudinal direction of the main middle case 53, other ventilation portions 67 and 69 each having a through hole are formed adjacent to the front side of the ventilation portions 66 and 68. These ventilation portions 67 and 69 are opposed to both ends in the longitudinal direction of the communication port 61 as representatively shown in FIG. 6, and as a result, communicate with the both ends in the longitudinal direction of the cleaning body accommodation chamber 57 from above. Is provided.
[0046]
Further, guide ribs 52f projecting downward at the boundary between one ventilation portion 66, 67 corresponding to the front-rear direction are integrally formed at both ends in the longitudinal direction of the main case 53, and corresponding to the front-rear direction. A guide rib 52g that protrudes downward from the other ventilation portion 68, 69 is integrally formed. As shown in FIGS. 5 and 6, the lower ends of the guide ribs 52g and 52f are in contact with or close to the longitudinal end of the upward leading edge 62a having a dust receiving shelf 62 in a bowl shape together with the rib 52b.
[0047]
The cleaning body driving device 25 is accommodated at one end side in the longitudinal direction of the suction port body main portion 22. As shown in FIGS. 7 and 8, the cleaning body drive device 25 is connected to an electric motor 71, a pair of front and rear final gears (not shown), and one final gear and an output shaft of the electric motor 71. In order to prevent dust from adhering to the final gear and the transmission mechanism, a dust-proof case 72 provided to cover the output shaft side of the electric motor 71, and both final gears are individually connected. And a pair of front and rear joints 73 and 74 (see FIG. 6) provided side by side so as to be exposed on the side surface of the dustproof case 72. For example, gears having the same diameter and the same number of teeth are used for the pair of final gears, and both the final gears and the joints 73 and 74 connected thereto are rotationally driven in opposite directions. The pair of joints 73 and 74 face the cleaning body accommodation chamber 57. In the present embodiment, the final gear and the transmission mechanism are formed by a gear train, but this is not restrictive. The cleaning body driving device 25 is air-cooled by being exposed to the wind that flows out of the air passage 65 and reaches the ventilation portion 68.
[0048]
A pair of front and rear bearing support portions (not shown) individually correspond to the joints 73 and 74 (not shown) at the end of the cleaning body storage chamber 57 located on the side opposite to the side where the cleaning body drive device 25 is installed. Is provided. A pair of front and rear rotary cleaning bodies 23 and 24 are detachably accommodated in the cleaning body accommodation chamber 57 as will be described later.
[0049]
As shown in FIGS. 9 and 10, both the rotary cleaning bodies 23, 24 have a joint 82 attached to one end portion of the cleaning body shaft 81 and a bearing 83 that rotatably supports the cleaning body shaft 81 at the other end portion. The first cleaning element and the second cleaning element are wound around the joint 82 and the bearing 83 so as to be spirally twisted two by two. First Cleaning element Uses a rubber plate blade 84 formed of a soft synthetic resin. Cleaning element Uses a bristle-like blade 85 in which brush hairs are arranged in a row. The plate-like blade 84 has a lower waist than the bristle brush-like blade 85 and is not easily deformed, and the radial width from the cleaning body shaft 81 is shorter than the bristle brush-like blade 85. A raised cloth can also be used for the plate-like blade 84.
[0050]
Both rotary cleaning bodies 23, 24 are preferably of the same diameter, and their diameter is defined by the rotation trajectory of the bristle brush blade 85 having the longest protruding width. 4 and 5, the rotation trajectory of the plate-like blade 84 is denoted by reference symbol R2, and the rotation trajectory of the bristle brush-like blade 85 is denoted by reference symbol R1. As shown in FIGS. 4 and 5, when the rotary cleaning bodies 23 and 24 are viewed from the axial direction, the rotation trajectory R2 of the plate blade 84 included in both the rotary cleaning bodies 23 and 24 slightly touches. At the same time, the rotation trajectories R1 of the bristle brush blades 85 are accommodated in the cleaning body accommodation chamber 57 in a state where they overlap each other in the front-rear direction of the suction port body 8. In FIG. 4, R3 indicates the size of the overlap. In the present invention, the rotation trajectory R2 of the plate-like blade 84 included in the rotary cleaning bodies 23 and 24 may be brought close to each other without being brought into contact with each other. In the state where they are overlapped as described above, the rotary cleaning bodies 23 and 24 are in a relational position where the tip of the plate blade 84 can hit the bristle brush blade 85 when they are rotated synchronously. Has been placed. In the housed state, the tips of the blades 84 and 85 of the rotary cleaning bodies 23 and 24 pass through the dust opening 57a and come into contact with the surface to be cleaned.
[0051]
The rotary cleaning body 23 on the front side is connected to the front joint 73 of the cleaning body driving device 25 with a joint 82 at one end thereof being detachably fitted, and a bearing 83 at the other end is connected to the main rotary cleaning body 23. By fitting from the lower side to the front bearing support portion (not shown) of the lower case 52, the lower case 52 is rotatably attached to the front portion of the cleaning body accommodation chamber 57, and can be removed by the reverse procedure. Similarly, the rear rotary cleaning body 24 is also connected to the rear joint 74 of the cleaning body driving device 25 with a joint 82 at one end thereof being detachably fitted and connected to the other end. The bearing 83 is fitted to the rear bearing support portion (not shown) of the main lower case 52 from the lower side so as to be rotatably attached to the rear portion of the cleaning body accommodation chamber 57, and can be removed by the reverse procedure. .
[0052]
A pressing plate 88 (see FIG. 9) is attached to the main lower case 52 so as to be detachable from the lower side to close a portion corresponding to the end of the cleaning body accommodation chamber 57 on the bearing support portion side. By this attachment, the front and rear bearing support portions are blocked from the lower side, and the joint 82 is prevented from falling off.
[0053]
In the above configuration, the second pipe 42 of the movable part 32 of the suction port 8, the passage 35 of the rotating pipe 34, the vent 36 of the rotating pipe 34, the air passage 65, the circulating air blowing chamber 56, and the vent parts 66 and 68. And the dust transfer chamber 58 are in communication with each other in the order of description, and form a return air passage that guides the air discharged from the electric blower 11 of the cleaner body 1 in the suction port 8. In addition, the first pipe 41 of the movable part 32 and the inner pipe part 33a of the rotating base pipe 33 that communicates directly with the first pipe 41 suck the air sucked into the electric blower 11 of the cleaner body 1 into the suction port body 8. An air passage is formed. The front end opening of the inner pipe portion 33 a that is the inlet of the suction air passage is communicated with the cleaning body accommodation chamber 57 through the dust transfer chamber 58 and the transfer chamber 58 through the communication port 61.
[0054]
And when cleaning using the suction port body 8 of the said structure and the air circulation type vacuum cleaner provided with this, the dust suction hose 4 and the dust suction pipe 5 are connected to the cleaner body 1 in order as shown in FIG. Then, the joint pipe 21 of the suction port body 8 is connected to the tip of the dust suction pipe 5 and any one of the control switches 17 provided on the handle 15 of the suction hose 4 is closed. By performing this closing operation, the electric blower 11 built in the cleaner body 1 is operated, and the cleaning body is operated as the electric motor 71 of the cleaning body driving device 25 built in the suction port body 8 is operated. The pair of front and rear rotary cleaning bodies 23, 24 in the storage chamber 57 rotate in synchronization with each other in the inner-inward direction, that is, in the direction facing each other in the dust removal opening 57a (see arrows A and B in FIGS. 3 to 5). Driven. In addition, rotation of the rotary cleaning bodies 23 and 24 can be arbitrarily stopped by switch operation.
[0055]
On the other hand, the air in the dust transfer chamber 58 of the suction port 8 is sucked by the suction action of the electric blower 11, and this suction air is connected to the first pipe 41 of the movable portion 32 in the joint pipe 21 and the circuit directly communicating with the first pipe 41. The air is sucked into the dust collection chamber via the respective suction air passages of the inner tube portion 33a of the dynamic base tube 33, the dust suction pipe 5, the dust suction hose 4, and the dust suction port 3 (route indicated by the solid line arrow in FIG. 1). Dust is removed by the dust bag 9 and the suction airflow is discharged from the electric blower 11 as exhaust air. This exhaust air is returned to the return air passage member (not shown), the dust suction port 3, the dust suction hose 4, the dust suction pipe 5, and the suction port body 8 of the cleaner body 1 that forms the path indicated by the dotted arrow in FIG.
[0056]
Then, the exhaust gas returned to the suction port body 8 is supplied to the second pipe 42 of the movable portion 32, the passage 35 of the rotating tube 34, the vent 36 of the rotating tube 34, the air passage 65, the circulating air blowing chamber 56, the ventilation. After passing through the parts 66 and 68 and blown into the dust transfer chamber 58 from both longitudinal ends of the chamber 58 toward the joint pipe 21 side, the dust is collected on the cleaner body 1 side by the above-described suction. By repeating the above, the air discharged from the electric blower 11 is circulated through the cleaner body 1 and the suction port body 8.
[0057]
In this case, the circulating air blown into the circulating air blowing chamber 56 while being guided to the air passage 65 through both the inner and outer pipe portions of the joint pipe 21 passes through the ventilation portions 66 and 68 of the main middle case 53. While flowing into the dust transfer chamber 58 from both ends in the longitudinal direction, the guide ribs 52g and 52f guide the flow direction to the dust transfer chamber 58 along the longitudinal direction. Thereby, the circulating air flows in the longitudinal direction in the rear part of the dust transfer chamber 58 and is sucked into the inner pipe part 33 a which is the suction part of the joint pipe 21.
[0058]
In addition, a part of the air circulating between the cleaner body 1 and the suction port body 8 passes through the vents 67 and 69 and the end of the communication port 61 directly below the air flow, as described above. Then, it flows into the cleaning body storage chamber 57, flows through the storage chamber 57 in the longitudinal direction, passes through the communication port 61, reaches the dust transfer chamber 58 again, and merges with the wind flowing through the chamber 58, 21 is sucked into the inner pipe portion 33 a of the joint pipe 21 at a position corresponding to 21.
[0059]
As described above, the air discharged from the electric blower 11 of the cleaner main body 1 flows through the return air passage in the suction inlet body 8 from the return air passage of the dust suction hose 4 and the dust suction pipe 5, After being sucked into the suction air passage in the body 8, the air is sucked into the electric blower 11 from the dust collecting chamber of the cleaner body 1 through the suction air passage of the dust suction hose 4 and the dust suction pipe 5 and circulates.
[0060]
Since the cleaning body accommodation chamber 57 is not included in the main air circulation path, the main circulating air does not flow through the cleaning body accommodation chamber 57. Therefore, most of the return air introduced into the suction port body 8 does not circulate along the outer peripheral surfaces of the two rotary cleaning bodies 23 and 24 in the cleaning body accommodation chamber 57, and the cleaning body accommodation chamber 57. It flows through the upper dust transfer chamber 58 and is sucked into the inner pipe portion 33a of the joint pipe 21 to be collected on the cleaner body 1 side.
[0061]
In the main air circulation, the air introduced into the dust transfer chamber 58 from the end in the longitudinal direction thereof has energy that originally flows by the exhaust pressure of the electric blower 11, Since the cross-sectional area of the flow path is small, the dust transfer chamber 58 is circulated at a high speed.
[0062]
On the other hand, simultaneously with the air circulation, the pair of front and rear rotary cleaning bodies 23 and 24 are rotationally driven, and the blades 84 and 85 scrape dust on the surface to be cleaned. In this case, since the two rotary cleaning bodies 23 and 24 are rotationally driven in a direction facing each other in the dust removing opening 57a, the dust on the surface to be cleaned is splashed around the rotary cleaning bodies 23 and 24. However, the rotary cleaning bodies 23 and 24 are forced to scrape upward while passing between the rotary cleaning bodies 23 and 24 while restricting the dust delivery direction. This scraping is performed over the entire length of the rotary cleaning bodies 23, 24, in other words, over the entire length of the suction port body 8 in the width direction.
[0063]
The dust scraped up from the surface to be cleaned in this way causes the communication port 61 facing the space between the upper peripheral surfaces of the two rotary cleaning bodies 23 and 24 facing each other by the momentum. It passes easily without being obstructed and is guided to the dust receiving shelf 62 side on the oblique guide wall 53a of the main middle case 53 facing the communication port 61. In addition, the dust transfer chamber 58 reaches the dust transfer chamber 58 through the communication port 61 due to the influence of high-speed wind that mainly flows on the dust receiving shelf 62 in the dust transfer chamber 58 and the influence of air suction in the inner pipe portion 33a. The air is flowing so as to join the high-speed wind.
[0064]
Therefore, the dust that has passed through the communication port 61 due to the scraping does not fall freely below it and return to the cleaning body accommodation chamber 57, and this dust is smoothly transferred to the dust receiving shelf 62 side behind the communication port 61. It can be moved to and placed on the shelf 62. In addition, since the tip edge 62a of the dust receiving shelf 62 is raised, it is possible to prevent the dust once placed on the dust receiving shelf 62 from dropping over the tip edge 62a, and this raised tip edge 62a. Since the dust receiving rack 62 can be made into a bowl shape so as to be a path for wind, it is possible to smoothly guide the flow of the high-speed wind flowing on the dust receiving rack 62 and to cause the higher speed wind to flow on the dust receiving rack 62. it can.
[0065]
As described above, the circulating airflow flows at high speed in the dust transfer chamber 58 to which dust is supplied from the cleaning body accommodation chamber 57 in this way. Therefore, the dust on the dust receiving shelf 62 and the dust floating in the dust transfer chamber 58 can be transferred to the joint pipe 21 on a high-speed air stream and sucked into the inner pipe portion 33a.
[0066]
Thus, the dust swept up by the two front and rear rotary cleaning bodies 23 and 24 is transferred to the suction side by the high-speed air flowing through the dust transfer chamber 57 different from the cleaning body accommodation chamber 57. The two rotary cleaning bodies 23 and 24 do not become air path resistance in the air transfer of the dust to reach. Therefore, the dust transferred to the air is hardly caught by the rotary cleaning bodies 23 and 24, and the dust thus picked up can be smoothly and reliably transferred to the inner pipe portion 33a of the joint pipe 21 and sucked therein.
[0067]
Therefore, even if the dust is scraped up at the end in the width direction of the suction port body 8 where the suction force is difficult to spread, it can be transferred to the air as described above and sucked into the joint pipe 21. Dust removal performance can be improved.
[0068]
In addition, the suction force mainly acts on the dust transfer chamber 57 through which high-speed air flows, and the chamber 57 is communicated with the lower cleaning body accommodation chamber 57 through the communication port 61 which is a throttle. The ripple of suction force is weak. Therefore, it is possible to prevent the dust removing opening 57a of the cleaning body accommodating chamber 57 facing the surface to be cleaned from being sucked by the surface to be cleaned, and the suction port body 8 can be moved lightly on the surface to be cleaned. Good.
[0069]
As described above, in the cleaning using the suction port body 8 having the above-described configuration and the air circulation type vacuum cleaner provided with the same, the dust on the surface to be cleaned which the pair of front and rear rotary cleaning bodies 23 and 24 are scraped up, The dust transfer chamber 58 is moved to the dust transfer chamber 58 located on the cleaning body storage chamber 57 and is discharged from the electric blower 11 and flows through the dust transfer chamber 58 at high speed while being substantially completely circulated. The dust inside can be transferred and sucked into the suction air passage, and the surface to be cleaned can be cleaned while lightly moving the suction port 8 onto the surface to be cleaned.
[0070]
Further, as described above, a part of the circulating air is introduced into the cleaning body accommodation chamber 57 and then merged with the airflow flowing through the dust transfer chamber 58 through the communication port 61. Therefore, the rotary cleaning bodies 23 and 24 However, it is excellent in that the dust scraped up from the surface to be cleaned can be smoothly carried onto the dust receiving shelf 62 and the dust removal performance can be further improved.
[0071]
In the above-described cleaning, the double-rotating cleaning bodies 23 and 24 that scrape up the dust in contact with the surface to be cleaned have the plate blades 84 suitable for cleaning the flooring floor, and for cleaning carpets and tatami mats. Since the suitable bristle brush-like blade 85 is provided, the compatibility with various surfaces to be cleaned is good.
[0072]
By the way, during the cleaning, a part of the dust that has been lifted up adheres particularly to the bristle brush blades 85 of the rotary cleaning bodies 23 and 24. This dust is removed from the side where the dust adheres as follows. Thus, as described above, the vacuum cleaner body 1 is sucked through the dust transfer chamber 58.
[0073]
That is, the two front and rear rotary cleaning bodies 23 and 24 are arranged so that the rotation locus R1 of the bristle-brush blade 85 and the rotation locus R2 of the plate blade 84 overlap each other when viewed from the axial direction. Therefore, when the two front and rear rotary cleaning bodies 23 and 24 are driven to rotate, the bristle brush blade 85 of one rotary cleaning body and the tip of the plate blade 84 of the other rotary cleaning body contact each other. To do.
[0074]
This contact is caused by dynamic factors such as flexible deformation of the blades 84 and 85 due to dust scraping, the bristles of the bristle-brush-like blade 85 spreading from the root side, and the double-rotating cleaning body 23, This is possible due to 24 mutual positional relationships. In particular, in the rotary cleaning bodies 23 and 24 that are rotationally driven inward and outward as shown in FIGS. 4 and 5, the blade 85 is attached to the bristle brush-like blade 85 of the rotary cleaning body 23 that precedes the front side in the rotational direction. In the configuration in which the plate-like blade 84 of the rotary cleaning body 24 that is followed from the rear side in the rotation direction is brought close, the contact between the two blades 84 and 85 is still easier.
[0075]
In this way, when the rotary cleaning members 23 and 24 are driven to rotate while the blades 84 and 85 are in contact with each other, the leading edge of the plate-like blade 84 that has a lower waist than the bristle brush-like blade 85 becomes the bristle brush blade. Subsequently, the bristle brush-like blade 85 is rubbed as it hits the ball 85. Therefore, deposits such as cotton dust adhering to the bristle brush blade 85 during cleaning are removed by the plate blade 84. The dust thus removed is sent into the dust transfer chamber 58 by centrifugal force, and then sucked into the joint pipe 21 by the air transfer described above in the chamber 58.
[0076]
As described above, dust adhering to the bristle brush blade 85 during cleaning is automatically removed by the plate blade 84 during cleaning, so the amount of dust adhering to the rotary cleaning bodies 23 and 24 having the bristle brush blade 85 is reduced. Less. Accordingly, it is possible to reduce the trouble of periodically removing the cotton-like dust adhering to the rotary cleaning bodies 23 and 24.
[0077]
Moreover, when the rotary cleaning bodies 23 and 24 are rotationally driven, the tips of the plate blades 84 do not contact each other, or even if they come into contact with each other, the plate blades 84 contact each other. Forcible bending is prevented. Therefore, both the front and rear rotary cleaning bodies 23 and 24 rotate smoothly, and the load on the cleaning body drive device 25 that rotationally drives them can be reduced.
[0078]
In addition, you may implement this invention by making the rotational speed of both the rotation cleaning bodies 23 and 24 mutually differ in the said 1st Embodiment. In this case, for example, by changing the number of teeth of the pair of final gears included in the cleaning body driving device 25, the rotational speeds of the rotary cleaning bodies 23 and 24 can be made different from each other, and the front rotary cleaning body 23 is disposed on the rear side. It may be faster than the rotary cleaning body 24 on the side, or vice versa.
[0079]
In the case of carrying out in this way, there are many opportunities for the bristle-brush blade 85 and the plate-like blade 84 that are overlapping each other to contact each other due to the relative rotational speed difference between the two front and rear rotary cleaning bodies 23 and 24. It can be secured. Therefore, the dust adhering to the bristle brush blade 85 can be effectively removed by the plate blade 84 during cleaning.
[0080]
11 to 13 show a second embodiment of the present invention. This embodiment has shown the example which applied this invention to the non-air circulation type vacuum cleaner E and the suction inlet 111 for it.
[0081]
In FIG. 11, reference numeral 112 denotes a cleaner body that can be moved on a surface to be cleaned by a wheel (not shown). A dust suction port 113 provided at the front thereof has a flexible dust suction hose (not shown) and an inflexible dust suction. One end of a dust suction communication pipe having a pipe is detachably fitted and connected, and the other end of the connecting pipe is detachably fitted and connected. Only the suction air flow is allowed to pass through the dust suction communication pipe. A dust collection bag (filter) 114 is housed in the dust collection chamber at the front of the cleaner body 112 so that it can be put in and out, and an electric blower 115 and the like are housed in the blower chamber at the rear of the cleaner body 112. Yes. The air discharged from the electric blower 115 is configured to be discharged to the outside through the exhaust part 116 provided at the rear part of the cleaner body 112.
[0082]
The suction port body 111 includes a suction port body main portion 121, a pair of front and rear rotary cleaning bodies 123 and 124, a joint pipe 125, a cleaning body driving device 126, and the like.
[0083]
The suction port main part 121 is formed by connecting a main part upper case 128 and a main part lower case 129. The front portion of the main lower case 129 forms a cleaning body accommodation chamber 131, which has a dust removal opening 131a facing the surface to be cleaned. Further, as shown in FIGS. 11 and 13, a pair of front and rear partition walls 132, 133 made of upward ribs are integrally projected on the ceiling wall of the main lower case 129. A communication port 135 is provided between the walls 132 and 133.
[0084]
The main part upper case 129 is provided with the upper ends of the partition walls 132 and 133 being closed, and the space surrounded by the main part upper case 129 and the front and rear partition walls 132 and 133 is located above the cleaning body accommodation chamber 131. A dust transfer chamber 136 communicated with the chamber 131 through a communication port 135 is formed. The air passage cross-sectional area of the dust transfer chamber 136 is smaller than the air passage cross-sectional area of the cleaning body accommodation chamber 131. Further, a part of the ceiling wall is located on the rear partition wall 133 side and partitions between the dust transfer chamber 136 and the cleaning body accommodation chamber 131, and this wall portion is used as a dust receiving shelf 139. ing.
[0085]
The dust transfer chamber 136 and the dust receiving shelf 139 are provided so as to extend substantially in the width direction of the suction port main body 121. An air inlet 137 (see FIG. 12) is provided at least at one end in the longitudinal direction of the dust transfer chamber 136, for example, at both ends. These inlets 137 are opened, for example, on the upper surfaces of both end portions of the main upper case 129 so as to directly communicate with the outside of the suction port body 111 so that the outside air can be sucked.
[0086]
Of the pair of front and rear partition walls 132 and 133, for example, the rear partition wall 133 is positioned away from the air introduction port 137 along the longitudinal direction of the dust transfer chamber 136, preferably approximately in the longitudinal direction of the dust transfer chamber 136. An intake opening 138 is provided at the center. A front end portion of the joint pipe 125 is sandwiched and attached to the rear part of the upper and lower cases 128 and 129 at the central portion in the width direction of the suction port main body 121, and the joint pipe 125 and the intake opening 138 communicate with each other. Yes. The joint pipe 125 connected to the tip of the dust suction communication pipe is configured so that the suction air can mainly flow therethrough.
[0087]
Therefore, the suction force generated as the electric blower 115 is operated spreads to the dust transfer chamber 136 through the dust suction communication pipe, the joint pipe 125, and the suction opening 138, and is further throttled by the dust receiving shelf 139. The dust is transferred from the dust transfer chamber 136 to the cleaning body accommodation chamber 131 through the communication port 135.
[0088]
Therefore, outside air sucked into the dust transfer chamber 136 from the air inlet 137 flows through the dust transfer chamber 136 at a high speed, and is sucked into the joint pipe 125 through the intake opening 138. At the same time, the air in the storage chamber 131 is sucked into the dust transfer chamber 136 through the communication port 135 in a state where the suction pressure spreading to the cleaning body storage chamber 131 is reduced in accordance with the introduction of the outside air. The air merges with the high-speed air flow in the dust transfer chamber 136 and is sucked into the joint pipe 125 through the intake opening 138.
[0089]
As shown in FIG. 11, one end of the two front and rear rotary cleaning bodies 123 and 124 accommodated in the cleaning body accommodating chamber 131 so as to substantially fill this is supported by the bearing 141, and the other end is The gears 142 and 143 that mesh with each other are individually supported. The gears 142 and 143 having the same diameter and the same number of teeth form the final gear of the cleaning body driving device 126, and the two front and rear rotary cleaning bodies 123 and 124 face each other in the dust removal opening 131a by the synchronous rotation. As shown in FIG.
[0090]
The cleaning body driving device 126 incorporated in the suction port main body 121 includes an electric motor 145, a winding transmission mechanism 146, and the final gears 142 and 143. The winding transmission mechanism 146 includes a driving toothed pulley 147 connected to the electric motor 145, a driven toothed pulley 148 coaxially connected to the rear final gear 143, and the pulleys 147 and 148 are wound around. The timing belt 149 is formed. Accordingly, the two front and rear rotary cleaning bodies 123 and 124 are driven to rotate inward and backward by the power of the electric motor 145, and the dust on the surface to be cleaned is moved between the rotary cleaning bodies 123 and 124 by the blade as the cleaning element. Can be scraped to pass.
[0091]
The rotary cleaning bodies 123 and 124 housed in the cleaning body housing chamber 131 are configured so that the two first and second cleaning elements are spirally twisted on the outer periphery of the cleaning body shaft 153, respectively. It is formed by winding. First Cleaning element Uses a rubber plate blade 154 formed of a soft synthetic resin. Cleaning element A bristle brush-like blade 155 is used in which the bristle is arranged in a row. The plate-like blade 154 has a lower waist than the bristle brush-like blade 155 and is not easily deformed, and has a shorter width in the radial direction from the cleaning body shaft 153 than the bristle brush-like blade 155. A raised cloth can also be used for the plate blade 154.
[0092]
Both rotary cleaning bodies 123 and 124 preferably have the same diameter, and their diameter is defined by the rotation locus R1 of the bristle brush blade 155 having the longest protruding width. In FIG. 11, reference symbol R <b> 2 indicates the rotation locus of the plate blade 154. As shown in FIG. 11, when the rotary cleaning bodies 123 and 124 are viewed from the axial direction, the rotation trajectory R2 of the plate blade 154 included in both the rotary cleaning bodies 123 and 124 is slightly in contact with the bristle brush. The blades 155 are accommodated in the cleaning body accommodation chamber 131 such that the rotation trajectories R1 of the blades 155 overlap in the front-rear direction. In FIG. 11, R3 indicates the size of the overlap. In the state of being overlapped as described above, the rotary cleaning bodies 123 and 124 are in a relational position where the tip of the plate blade 154 can hit the bristle brush blade 155 when they are rotated synchronously. Has been placed. In the housed state, the tip portions of the blades 154 and 155 of the rotary cleaning bodies 123 and 124 pass through the dust opening 131a and come into contact with the surface to be cleaned.
[0093]
Also in the second embodiment, the rotation trajectory R2 of the plate-like blade 154 of the rotary cleaning bodies 123 and 124 overlaps the rotation trajectory R1 of the bristle brush-like blade 155, and these blades 154 and 155 are touching each other. Both rotary cleaning bodies 123 and 124 can be driven to rotate by the cleaning body driving device 126. Therefore, dust adhering to the bristle brush blade 155 during cleaning can be removed one after another by the plate blade 154 to reduce the amount of dust adhering to the rotary cleaning bodies 123 and 124 having the bristle brush blade 155. Therefore, the trouble of periodically cleaning the rotary cleaning bodies 123 and 124 can be reduced.
[0094]
Further, the dust scooped up from the surface to be cleaned by the two front and rear rotary cleaning bodies 123 and 124 that are rotationally driven in accordance with the operation of the cleaning body driving device 126 is formed on the upper side separately from the cleaning body accommodation chamber 131. The dust transfer chamber 136 is reached, and a part of the dust transfer chamber 136 falls freely on the dust receiving shelf 139. The dust transfer chamber 136 to which dust is thus supplied from the cleaning body accommodating chamber 131 is sucked in from the direction other than the surface to be cleaned through the air inlet 137 and flows at high speed. Dust on the dust receiving shelf 139 and dust floating in the dust transfer chamber 136 can be transferred to the intake joint pipe 125 and sucked into the pipe 125 by being put on the air flow.
[0095]
Since the dust thus scraped up is transferred to the suction side by the high-speed air flowing through the dust transfer chamber 136, the two rotary cleaning bodies 123 and 124 do not become air path resistance in such dust air transfer. . Therefore, the dust transferred to the air hardly gets caught by interfering with the rotary cleaning bodies 123 and 124, and the dust thus scraped up can be smoothly and reliably transferred to the joint pipe 125 and sucked therein. Therefore, even if dust is scraped up at the end in the width direction of the suction port body 111 where the suction force is not easily spread, it can be sucked by air transfer as described above. It can be improved.
[0096]
In addition, as the outside air is sucked in as described above, the lower cleaning body accommodation chamber 131 communicated from the joint pipe 125 through the communication port 135 which is a throttle. Acting suction force Is greatly reduced. For this reason, it is possible to prevent the dust removal opening 131a of the cleaning body accommodation chamber 131 facing the surface to be cleaned from being strongly sucked by the surface to be cleaned despite the non-air circulation type cleaning. Therefore, the suction inlet 111 can be moved lightly on the surface to be cleaned, and the operability is good.
[0097]
Also, the rotary cleaning bodies 123 and 124 Since the rotation locus R2 of the plate-like blade 154 and the rotation locus R1 of the bristle brush-like blade 155 overlap with each other, the rotary cleaning bodies 123 and 124 are driven to rotate while the blades 154 and 155 are in contact with each other. The dust attached to the bristle brush blade 155 can be removed one after another by the plate blade 154 to solve the problem of the present invention.
[0098]
In addition, in this invention, as a means to rotate two rotary cleaning bodies, in addition to what was illustrated in each said embodiment, it rotates by blowing a part or all of the suction airflow or the circulated airflow. Two rotating cleaning bodies can be rotated using a turbine, and a part or all of the suction airflow or the circulated airflow is blown onto at least one of the two rotating cleaning bodies. These two rotary cleaning bodies can also be rotated. Further, when using the cleaning body driving device, the transmission mechanism can be a gear train, a winding transmission section using a timing belt, or a transmission mechanism formed by a combination thereof. .
[0099]
【The invention's effect】
The present invention is implemented in the form as described above, and has the following effects.
[0100]
According to the invention of claim 1, Since the dust swept up by the two rotary cleaning bodies is transferred to the suction side by the air flowing in a dust transfer chamber different from the cleaning body accommodation chamber, the end of the suction port body in the width direction where the suction force is difficult to spread Even if the dust is scraped up in step 1, it can be transferred to the air and sucked into the joint pipe, so that the dust removal performance can be improved. Moreover, The dust adhering to the bristle brush blade of at least one of the two front and rear rotary cleaning bodies is automatically removed during cleaning by the plate blade of the other rotary cleaning body. Therefore, the amount of dust attached to the rotary cleaning body having the bristle brush blade is reduced, and a suction port body that can reduce the trouble of periodically cleaning the rotary cleaning body can be provided.
[0101]
According to the second aspect of the present invention, it is possible to provide a suction port body in which it is easy to determine the delivery position of the dust scraped up from the surface to be cleaned.
[0102]
According to the invention of claim 3, during cleaning, not only the dust adhering to the bristle brush blade can be removed by the plate blade, but also the plate blades are prevented from being bent forcibly. The rotating cleaning body can be smoothly rotated.
[0103]
According to the fourth aspect of the present invention, it is possible to secure many opportunities for the bristle-brush blades and the plate-like blades that are overlapping each other to come into contact with each other, and to improve the cleaning performance of the plate-like blades with respect to the bristle-brush blades.
[0104]
According to the invention of claim 5, since the suction port body that can remove the dust adhering to the bristle brush blade by the plate blade during cleaning is provided, the rotating cleaning body to which the dust adheres during cleaning is provided. It is possible to provide a non-air circulation type electric vacuum cleaner that can reduce the trouble of cleaning.
[0105]
According to the invention of claim 6, since the suction port body that can remove the dust adhering to the bristle brush blade by the plate blade during cleaning is provided, the rotary cleaning body to which dust adheres during cleaning is provided. It is possible to provide an air circulation type electric vacuum cleaner that can reduce the trouble of cleaning.
[Brief description of the drawings]
FIG. 1 is a perspective view showing an air circulation type vacuum cleaner according to a first embodiment of the present invention.
FIG. 2 is a perspective view showing a suction port provided in the electric vacuum cleaner of FIG.
FIG. 3 is a vertical side view showing the suction port body of FIG. 2;
4 is an enlarged longitudinal side view showing a portion between a width direction central portion and one end portion of the suction port body of FIG. 2;
5 is a longitudinal side view showing one end portion in the width direction of the suction port body of FIG. 2;
6 is a perspective view showing one end portion of the suction port body of FIG. 2 in an inverted state. FIG.
7 is a schematic plan view showing the suction port body of FIG. 2 with its main part upper cover removed. FIG.
8 is a schematic plan view showing a part of the suction port body of FIG. 2 in a cross-section with the main part upper cover and the main part middle cover removed. FIG.
9 is a bottom view showing the suction port body of FIG. 2. FIG.
10 is a plan view showing a rotary cleaning body provided in the suction port body of FIG. 2;
FIG. 11 is a schematic cross-sectional view showing a suction port body of a non-air circulation type vacuum cleaner according to a second embodiment of the present invention.
12 is a plan view showing the suction port body of FIG.
13 is a schematic plan view showing the suction port body of FIG. 11 with a part cut away in a state where the main part upper cover is removed.
[Explanation of symbols]
A ... Air circulation type vacuum cleaner , 1 ... Vacuum cleaner body , 8 ... Suction mouth , 9 ... Dust collection bag (filter) , 11 ... Electric blower , 21 ... Fitting pipe , 22 ... Main part of suction port , 23 ... Rotating cleaning body on the front side , 24: Rear rotating cleaning body , 25. Cleaning body drive device , 57. Cleaning body storage room , 57a ... Dust removal opening 58 ... Dust transfer chamber, 61 ... Communication port, 66,68 ... Ventilation part, 81 ... Cleaning shaft , 84 ... Plate blade (first cleaning element) , 85 ... Bristle brush-like blade (second cleaning element) , R1 ... Rotating locus of bristle brush blade , R2 ... Rotation locus of plate blade , R3: Overlap size of plate blade and bristle brush blade , E ... Non-air circulating vacuum cleaner , 111 ... Suction mouth , 112 ... Vacuum cleaner body , 114 ... Dust collection bag (filter) , 115 ... Electric blower , 121 ... Main part of the suction port , 123 ... Rotating cleaning body on the front side , 124: Rotating cleaning body on the rear side , 125 ... Fitting pipe , 126 ... Cleaning body driving device , 131 ... Cleaning body storage room , 131a ... Dust removal opening 135, communication port, 136, dust transfer chamber, 137, air inlet (vent), 142, 143... Final gear of the cleaning body driving device , 153 ... Cleaning shaft , 154 ... Plate blade (first cleaning element) , 155 ... Bristle brush-like blade (second cleaning element)

Claims (6)

A cleaning body storage chamber having a dust removal opening facing the surface to be cleaned is provided in the main portion of the suction port, and two cleaning cleaning bodies that rotate in directions facing each other in the dust removal opening are accommodated side by side in the cleaning body storage chamber. A suction port body that sucks dust that has been scraped up from the surface to be cleaned with the rotation of the two rotary cleaning bodies and passed between the two rotary cleaning bodies into a joint pipe attached to the main portion of the suction port body. In
The cleaning body accommodating chamber is formed in a size that covers the two rotary cleaning bodies and is filled with the two rotary cleaning bodies,
The main body of the suction port extends in the same direction as the direction in which the cleaning body housing chamber extends, and a dust transfer chamber provided on the upper side of the cleaning body housing chamber, and communicates the two chambers with the cleaning body housing chamber. A communication port through which the dust that has been scraped up is passed, and an end portion in the longitudinal direction of the dust transfer chamber, and air outside the cleaning body storage chamber is transferred to the dust transfer chamber. Each with a ventilation part to introduce without circulating
The joint pipe is attached to the main portion of the suction port in communication with the dust transfer chamber at a position away from the ventilation portion so as to suck in an airflow flowing in the longitudinal direction in the dust transfer chamber,
At least one of the rotary cleaning bodies includes a cleaning element composed of one or more bristle brush blades, and the other rotational cleaning body includes a cleaning element composed of one or more plate blades. A suction port body characterized in that the rotation trajectory of the cleaning element is overlapped when viewed from the axial direction so that the bristle brush blade and the plate blade rotate in contact with each other. The suction port body according to claim 1, wherein the both rotary cleaning bodies are rotated in a direction facing each other in the dust opening. Each of the rotating cleaning bodies includes a first cleaning element made of the bristle brush-like blade and a second cleaning element made of the plate-like blade having a shorter protruding width than the first cleaning element. In the state where the both rotary cleaning bodies are viewed from the axial direction, the rotation trajectories of the first cleaning element and the second cleaning element of the both rotary cleaning bodies overlap with each other, and the second rotation cleaning bodies The suction port body according to claim 1 or 2, wherein a rotation trajectory of the cleaning element is slightly in contact with or close to the cleaning element. The suction port according to any one of claims 1 to 3, wherein the rotational speeds of the rotary cleaning bodies are different from each other. By the operation of the electric blower in the main body of the vacuum cleaner, the dust on the surface to be cleaned is sucked together with the air from the dust removal opening of the suction port connected to the dust collecting chamber of the main body of the vacuum cleaner, and the sucked dust is collected in the dust collecting chamber. The vacuum cleaner which captures through an indoor filter, The vacuum cleaner characterized by using the suction inlet body as described in any one of Claims 1-4 for the said suction inlet body. Dust on the surface to be cleaned is taken from the dust collection opening of the suction port connected to the dust collection chamber of the main body of the vacuum cleaner with a built-in electric blower, and this dust is passed through the filter in the dust collection chamber and captured. In the vacuum cleaner that cleans the air exhausted from the electric blower after passing through the filter and returning the air to the suction port body and circulating the exhaust air over the vacuum cleaner body and the suction port body, The vacuum cleaner using the suction inlet body as described in any one of Claims 1-4 for the said suction inlet body.

Images