JP2012139434A - Suction port assembly and vacuum cleaner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a suction port body restricting the increase in operation force for a suction port, and cleaning up a surface to be cleaned efficiently compared with only wiping, and to provide a vacuum cleaner.SOLUTION: The suction port assembly 26 includes a suction port body 32 having a suction port 28 in the bottom, a rotary cleaning body 29 having a shaft portion 57 rotatably pivoted at the suction port body 32 and a linear bristle brush 58 extending in the radial direction of the shaft portion 57, and disposed at the suction port 28, and a removable bag-shaped cleaning body 65 having a cylindrical cleaning surface 65a having a bag shape, covering the bristle brush 58, and integrally rotated with the rotary cleaning body 29.

Description

  Embodiments according to the present invention relate to a suction port body and a vacuum cleaner.

  A suction port body having a suction port on the bottom surface, a shaft portion rotatably supported by the suction port body, and a plate-shaped blade extending in the radial direction of the shaft portion (or linear hair extending in the radial direction of the shaft portion) There is known a suction port body including a rotary cleaning body having a brush) and disposed at the suction port.

  The blades and bristle brushes rotate with the rotation of the rotary cleaning body, scraping up the surfaces to be cleaned such as carpets and flooring to remove dust.

  By the way, a plurality of blades and bristle brushes are provided around the shaft, but each blade is in linear contact with the surface to be cleaned, and each bristle brush is pointed with respect to the surface to be cleaned. Touch up and dust up. For this reason, it is difficult to clean the blade or bristle brush in a state where the surface to be cleaned such as flooring with less unevenness is polished.

  Therefore, in addition to the rotary cleaning body, a suction port body including a pedestal having a flat surface facing the surface to be cleaned and a wiping member such as a woven fabric, a non-woven fabric, a knitted fabric, and a tissue paper provided on the pedestal is known. ing.

JP 2007-167255 A

  The vacuum cleaner equipped with a wiping member on the flat surface of the pedestal has a large contact area on the surface to be cleaned compared to blades and bristle brushes, so it cleans the surface to be cleaned like a flooring with less unevenness. It becomes possible to do.

  However, the expansion of the contact area of the wiping member increases the operating force required to move the suction port forward and backward, and if air bubbles are provided throughout the contact surface of the wiping member, dust can be sucked in. The operating force required to move the suction port back and forth further increases. That is, the operating force required for the front and rear movement of the suction port body is governed by the friction between the wiping member and the surface to be cleaned.

  Therefore, the present invention proposes a suction port body and a vacuum cleaner that can polish the surface to be cleaned more efficiently than simply wiping while suppressing an increase in operating force of the suction port body.

  In order to solve the above problems, a suction port body according to an embodiment of the present invention includes a suction port body having a suction port on a bottom surface, a shaft portion rotatably supported by the suction port body, and a diameter of the shaft portion. A rotary cleaning body that has a linear or plate-shaped first cleaning member extending in the direction and is disposed in the suction port; and a bag-shaped first cleaning member that covers the first cleaning member and rotates integrally with the rotary cleaning body. And a removable second cleaning body having a cylindrical cleaning surface to be converted.

  Moreover, the vacuum cleaner which concerns on embodiment of this invention was equipped with the said suction inlet body.

The perspective view which showed the external appearance of the vacuum cleaner which concerns on embodiment of this invention. The perspective view which showed the suction inlet concerning the embodiment of this invention. The perspective view which showed the inside of the suction inlet which concerns on embodiment of this invention. The perspective view which showed the rotary cleaning body of the suction inlet concerning the embodiment of this invention. The longitudinal cross-sectional view which showed the rotary cleaning body of the suction inlet concerning the embodiment of this invention. The cross-sectional view which showed the rotary cleaning body of the suction inlet concerning the embodiment of this invention. The perspective view which showed the bag-shaped rotary cleaning body of the suction inlet concerning the embodiment of this invention. The longitudinal cross-sectional view which showed the bag-shaped rotary cleaning body of the suction inlet concerning the embodiment of this invention. The cross-sectional view which showed the bag-shaped rotary cleaning body of the suction inlet concerning the embodiment of this invention.

  An embodiment of a vacuum cleaner according to the present invention will be described with reference to FIGS.

  FIG. 1 is a perspective view illustrating an appearance of a vacuum cleaner according to an embodiment of the present invention.

  As shown in FIG. 1, the vacuum cleaner 1 is a so-called canister-type vacuum cleaner. The vacuum cleaner 1 includes a cleaner body 2 that travels on a surface to be cleaned, and a pipe portion 3 that is detachably connected to the cleaner body 2.

  The vacuum cleaner main body 2 includes a main body case 5, a pair of wheels 6 that are pivotally supported on both sides of the main body case 5, a dust separating and collecting portion 7 that is detachably attached to the main body case 5, and a dust separating and collecting dust. The electric blower 8 communicated with the unit 7, a main body control unit 9 that mainly controls the operation of the electric blower 8, and a power cord 11 that guides electric power to the electric blower 8.

  The main body case 5 has a main body connection port 12 communicated with the dust separating and collecting part 7.

  The wheel 6 is a large-diameter traveling wheel.

  The dust separating and collecting unit 7 separates and collects dust from dust-containing air (air containing dust) sucked into the vacuum cleaner 1 by the negative pressure generated by the electric blower 8.

  The main body control unit 9 has a plurality of preset operation modes. Moreover, the main body control unit 9 selectively selects an arbitrary operation mode corresponding to the operation signal read from the pipe unit 3 from the plurality of operation modes, and operates the electric blower 8 according to the selected operation mode. Each operation mode is set so as to have different input values (input values of the electric blower 8) in association with the operation signal read from the pipe section 3.

  The power cord 11 includes a power plug 16 at the free end.

  The pipe portion 3 sucks dust-containing air from the surface to be cleaned and guides it to the cleaner body 2 by the negative pressure acting from the cleaner body 2 as the electric blower 8 is operated. The pipe section 3 includes a connection pipe 19 that is detachably connected to the main body connection port 12 of the vacuum cleaner body 2, a dust collection hose 21 that is in communication with the connection pipe 19, and a hand control pipe that is in communication with the dust collection hose 21. 22, a gripping portion 23 provided protruding from the hand operation tube 22, an operation portion 24 provided on the gripping portion 23, an extension tube 25 detachably connected to the hand operation tube 22, and an extension A suction port body 26 detachably connected to the pipe 25.

  The dust collection hose 21 has a flexible and elongated substantially cylindrical shape. One end of the dust collection hose 21 is connected to the connection pipe 19. The dust collection hose 21 communicates with the inside of the cleaner body 2 through the connection pipe 19.

  One end of the hand operation tube 22 is provided at the other end of the dust collecting hose 21. The hand operation tube 22 communicates with the inside of the cleaner body 2 through the connection tube 19 and the dust collecting hose 21.

  The grip part 23 is operated by the user of the vacuum cleaner 1 to operate the vacuum cleaner 1. The grip portion 23 is provided on the hand operation tube 22.

  The operation unit 24 includes a switch corresponding to each operation mode. Specifically, the operation unit 24 includes a stop switch 24 a that receives an operation stop operation of the electric blower 8 and an activation switch 24 b that receives an operation start operation of the electric blower 8. The start switch 24b may include a weak operation switch (not shown), a medium operation switch (not shown), and a strong operation switch (not shown). The user of the vacuum cleaner 1 can alternatively select the operation mode of the electric blower 8 by operating the operation unit 24.

  The extension tube 25 is formed in an elongated and substantially cylindrical shape that can be expanded and contracted. The extension tube 25 has a telescopic structure in which a plurality of cylindrical bodies are overlapped. One end of the extension tube 25 is detachably connected to the other end of the hand operation tube 22. The extension pipe 25 communicates with the inside of the cleaner body 2 through the connection pipe 19, the hand operation pipe 22 and the dust collection hose 21.

  The suction port body 26 is detachably connected to the other end of the extension pipe 25. The suction port body 26 has a structure capable of traveling on a surface to be cleaned such as a wooden floor or a carpet, and has a suction port 28 on the bottom surface facing the surface to be cleaned in a traveling state. Further, the suction port body 26 includes a rotary cleaning body 29 that is pivotally supported by the suction port body 26 and disposed at the suction port 28, and an electric motor 31 that drives the rotary cleaning body 29 to rotate. The suction port body 26 communicates with the inside of the cleaner body 2 through the extension pipe 25, the hand operation pipe 22 and the dust collection hose 21.

  When the vacuum cleaner 1 receives the operation start operation with the start switch 24b, the electric vacuum blower 8 starts to operate and generates a negative pressure (suction negative pressure) inside the vacuum cleaner body 2. This negative pressure acts on the suction port 28 of the suction port body 26 from the main body connection port 12 through the dust collecting hose 21, the hand operating tube 22 and the extension tube 25. Due to the negative pressure acting on the suction port 28, the vacuum cleaner 1 sucks dust collected on the surface to be cleaned together with air from the suction port 28 to clean the surface to be cleaned. At this time, the vacuum cleaner 1 separates the dust-containing air sucked into the suction port 28 into air and dust by the dust separation and collection unit 7 and collects the separated dust. On the other hand, the separated air passes through the dust separation and collection unit 7 and is sucked into the electric blower 8 and then exhausted from the cleaner body 2.

  The suction port body 26 will be further described in detail.

  FIG. 2 is a perspective view illustrating a suction port body according to the embodiment of the present invention.

  As shown in FIG. 2, the suction port body 26 includes a box-shaped suction port body 32 having a substantially rectangular parallelepiped shape, and a connection pipe portion 33 provided at the rear portion of the suction port body 32.

  Here, let the advancing direction (solid arrow X in FIG. 2) of the suction inlet 26 be a front, and let the opposite direction be a back. Further, with the suction port body 26 arranged on a substantially horizontal surface to be cleaned such as a floor surface, the left side (indicated by a solid arrow Y in FIG. 2) when viewed from the rear is on the left side and the opposite direction is on the left side. The right side. Furthermore, the + Z direction of the right-handed coordinate system orthogonal to the front-rear direction and the left-right direction of the suction port body 26 is defined as the upper side, and the opposite direction is defined as the lower side.

  The suction inlet body 32 includes a rectangular case body 35 having a short side in the front-rear direction and a long side in the left-right direction in plan view. The case body 35 includes a box-shaped lower case 36 whose upper side is opened, and an upper case 37 and a lid case 38 that cover the lower case 36.

  The connecting pipe portion 33 is disposed at a substantially central portion in the width direction on the rear side of the suction port main body 32. Further, the connection pipe part 33 includes a rotary connection pipe part 39 that is pivotally supported by the suction port body 32 and a swinging connection pipe part 41 that is pivotally supported by the rotary connection pipe part 39.

  The rotary connecting pipe portion 39 is pivotally supported by the suction port body 32 so as to be rotatable about an axis (an axis that coincides with the X axis or an axis parallel to the X axis) along the front-rear direction of the suction port body 26.

  The swing connection pipe part 41 is swingably provided on the rotary connection pipe part 39. That is, the oscillating connection pipe portion 41 is pivotally supported so as to oscillate around an axis orthogonal to the rotation axis of the rotary connection pipe portion 39 (an axis coincident with the X axis or an axis parallel to the X axis). Further, the free end portion of the swing connection pipe portion 41 is detachably connected to the free end portion of the extension pipe 25.

  FIG. 3 is a perspective view showing the inside of the suction port body according to the embodiment of the present invention. FIG. 3 is a view showing the upper case 37 and the lid case 38 removed.

  As shown in FIG. 3, the lower case 36 of the suction port body 26 is a box-shaped body whose upper part is opened, a suction chamber 42 in which the rotary cleaning body 29 is accommodated, a machine room 43 in which the electric motor 31 is accommodated, and An inner wall 47 is provided that defines a control chamber 46 in which the suction port body controller 45 is accommodated.

  The upper case 37 covers the machine chamber 43 and the control chamber 46, and the lid case 38 covers the suction chamber 42.

  The suction chamber 42 is partitioned in the front half of the suction port body 26, the machine chamber 43 is partitioned from the left half of the suction port body 26 to the left side, and the control chamber 46 is partitioned in the right half of the suction port body 26. Is done. The machine room 43 and the control room 46 are separated from each other.

  The suction chamber 42 is a space that is continuous with the suction port 28 on the bottom surface of the suction port body 26, and is a space that extends in the width direction of the suction port body 26.

  The rotary cleaning body 29 is detachably held with the rotation axis directed in the width direction of the suction port body 26 and can be taken out from the suction chamber 42.

  The electric motor 31 is disposed on the rear left side of the suction chamber 42. The electric motor 31 includes a substantially cylindrical shell 48 that covers a rotor (not shown) and a stator (not shown), and an output shaft 31a that is integrated with the rotor. The outer shell 48 directs the center line (center line of the cylindrical portion) in the width direction of the suction port body 26. The output shaft 31 a is a shaft that is integrally rotated with the rotor, is substantially coaxial with the center line of the outer shell 48, and extends from one bottom portion of the outer shell 48 toward the inside of the left side wall of the suction port body 26.

  The suction port control unit 45 operates the electric motor 31 with electric power supplied from the cleaner body 2 through the connection pipe 19, the dust collecting hose 21, the hand operation pipe 22 and the extension pipe 25.

  The suction port body 26 includes a trumpet-shaped communication pipe 49 that communicates the suction chamber 42 and the connection pipe section 33 (more specifically, the rotary connection pipe section 39), and an elastic support section that elastically supports the motor 31 in the machine chamber 43. 51, a first pulley 52 connected to the rotary cleaning body 29 housed in the suction chamber 42 in the machine chamber 43, a second pulley 53 fixed to the output shaft 31 a of the electric motor 31 so as to be integrally rotated, A belt 55 wound between the pulley 52 and the second pulley 53.

  The communication pipe 49 is between the machine room 43 and the control room 46 and separates the machine room 43 and the control room 46.

  The elastic support portion 51 insulates the vibration accompanying the operation of the electric motor 31 from being transmitted to the case body 35. The elastic support portion 51 is a rubber elastic body such as silicon rubber or an elastic body such as a spring, and is interposed between the outer shell 48 of the electric motor 31 and the case body 35. The elastic support portion 51 has a pair of vibration isolating members 56 a and 56 b that are separated in the extending direction of the output shaft 31 a of the electric motor 31. The anti-vibration members 56a and 56b support the respective end portions of the cylindrical outer shell 48.

  The first pulley 52, the second pulley 53, and the belt 55 transmit the driving force of the electric motor 31 to the rotary cleaning body 29.

  The first pulley 52 is connected to the rotary cleaning body 29 by a coupling (not shown).

  The belt 55 extends in the machine chamber 43 from the front side to the rear side of the left side of the suction port body 26, and is interposed between the electric motor 31 and the rotary cleaning body 29 via the first pulley 52 and the second pulley 53. To transmit power.

  FIG. 4 is a perspective view showing the rotary cleaning body of the suction port body according to the embodiment of the present invention.

  FIG. 5 is a longitudinal sectional view showing the rotary cleaning body of the suction port body according to the embodiment of the present invention.

  FIG. 6 is a cross-sectional view showing the rotary cleaning body of the suction port body according to the embodiment of the present invention.

  As shown in FIGS. 4 to 6, the rotary cleaning body 29 of the suction port body 26 includes a shaft portion 57 that is rotatably supported by the suction port body 32, and linear hairs that extend in the radial direction of the shaft portion 57. A brush 58 (first cleaning member), a plate-like blade 59 (first cleaning member) extending in the radial direction of the shaft portion 57, and a bearing portion 61 provided at both free ends of the shaft portion 57 are provided. .

  The shaft portion 57 includes a cylindrical base portion 62 and an arm portion 63 that protrudes outward in the radial direction of the base portion 62 and holds the leading end of the bristle brush 58 or the blade 59. The arm portions 63 are arranged substantially evenly when viewed in the circumferential direction of the base portion 62, and have a spiral shape when viewed in the longitudinal axis direction of the base portion 62.

  Each bristle brush 58 has a starting end held by the arm portion 63 of the shaft portion 57 and a tip protruding in the radial direction of the rotary cleaning body 29. The entire bristle brush 58 is arranged in a spiral wall shape extending in the direction of the rotation center line of the shaft portion 57.

  The blade 59 is a silicon rubber plate-like body having a starting end held by the arm portion 63 of the shaft portion 57 and a tip protruding in the radial direction of the rotary cleaning body 29. The blade 59 extends in a spiral wall shape in the direction of the rotation center line of the shaft portion 57.

  The bristle brush 58 and the blade 59 alternately surround the periphery of the shaft portion 57, and these tips draw a cylindrical locus as the rotary cleaning body 29 rotates.

  Note that only one of the bristle brush 58 and the blade 59 as the first cleaning member (that is, only the bristle brush 58 or only the blade 59) may be used.

  The bearing portion 61 is rotatable with respect to the shaft portion 57 and holds the rotary cleaning body 29 in the case body 35 so as to be rotatable and detachable.

  As the rotary cleaning body 29 rotates, the blade 59 comes into linear contact with the surface to be cleaned, and the bristle brush 58 touches the surface to be cleaned in a point shape to scrape dust. For this reason, it is difficult to clean the bristle brush 58 and the blade 59 in a state where the surface to be cleaned such as a flooring with less unevenness is polished.

  Therefore, the suction port body 26 according to the present embodiment includes a bag-like rotary cleaning body 65 in addition to the rotary cleaning body 29.

  FIG. 7 is a perspective view showing a bag-like rotary cleaning body of a suction port body according to an embodiment of the present invention.

  FIG. 8: is the longitudinal cross-sectional view which showed the bag-shaped rotary cleaning body of the suction inlet concerning the embodiment of this invention.

  FIG. 9 is a cross-sectional view showing a bag-like rotary cleaning body of a suction port body according to an embodiment of the present invention.

  As shown in FIGS. 7 to 9, the suction port body 26 has a bag shape, and has a cylindrical cleaning surface 65 a that covers the bristle brush 58 and the blade 59 and rotates and integrates with the rotary cleaning body 29. A flexible bag-like rotary cleaning body 65 (second cleaning body) is provided.

  The bag-like rotary cleaning body 65 has a substantially cylindrical bag body having a cylindrical cleaning surface 65 a that follows a cylindrical locus drawn by the tips of the bristle brush 58 and the blade 59 as the rotary cleaning body 29 rotates. It is. The bag-like rotary cleaning body 65 is a woven, knitted, non-woven fabric, or resin film woven, knitted, or sewn into a bag shape, and can be used upside down (so-called reversible).

  Further, the bag-like rotary cleaning body 65 has an opening 65b through which the rotary cleaning body 29 can pass and which can prevent the bristle brush 58 and the blade 59 from slipping out when the opening diameter is reduced. The bag-like rotary cleaning body 65 includes an annular rubber string (not shown) and a string (not shown) along the edge of the opening 65b, and narrows the opening 65b. The bag-like rotary cleaning body 65 is attached to the rotary cleaning body 29 by passing through the rotary cleaning body 29 through the opening 65b, covering the bristle brush 58 and the blade 59, and narrowing the opening 65b. On the other hand, the bag-shaped rotary cleaning body 65 is detached from the rotary cleaning body 29 by loosening the opening 65b and extracting the rotary cleaning body 29 from the opening 65b.

  Further, the bag-like rotary cleaning body 65 has a mesh-like convex portion 66 inclined with respect to the rotation direction. The convex portion 66 is a lattice formed of a woven fabric, a knitted fabric, a nonwoven fabric, or a resin film, and may be woven, knitted, sewn, or may be a sheet or a film. The bag-like rotary cleaning body 65 has mesh-shaped convex portions 66a and 66b having different meshes on the front and back sides of the bag shape. In addition, the convex part 66 may exist only in either the back and front of the bag-shaped rotary cleaning body 65.

  The suction port body 26 can rotate the cleaning surface 65 a of the bag-shaped rotary cleaning body 65 in place of the bristle brush 58 and the blade 59 when the rotary cleaning body 29 covers the bag-shaped rotary cleaning body 65. The cleaning surface 65a is firmly grounded to the surface to be cleaned by elasticity (so-called waist strength) due to the length (so-called hair length) of the bristle brush 58 and the blade 59 from the leading end to the tip. Then, the suction opening 26 is grounded in a substantially straight line in the width direction (FIG. 9). And the cleaning surface 65a does not intermittently install in connection with rotation like the bristle brush 58 and the blade 59, and always contacts the surface to be cleaned over the entire width of the cleaning surface 65a. By these, the suction inlet body 26 can polish a to-be-cleaned surface very efficiently and effectively rather than rubbing a wiping member on a to-be-cleaned surface like the conventional vacuum cleaner.

  Further, the suction port body 26 is operated by friction between the wiping member and the surface to be cleaned like a conventional electric vacuum cleaner because the cleaning surface 65a is rotated at a higher speed than the traveling speed of the suction port body 26 by the electric motor 31. Without increasing the force, it can move back and forth with a relatively light force, and the operability can be improved.

  Furthermore, since the bag-like rotary cleaning body 65 is formed using a woven fabric, a knitted fabric, a non-woven fabric, or a resin film, it is not torn by moisture on the surface to be cleaned.

  Furthermore, the bag-like rotary cleaning body 65 can be securely attached to the rotary cleaning body 29 so that the bristle brush 58 and the blade 59 do not come out of the bag by squeezing the opening 65b. It is not caught in or sucked into the suction port body 26.

  Moreover, the bag-shaped rotary cleaning body 65 can polish a to-be-cleaned surface more cleanly by the convex part 66 of the cleaning surface 65a.

  Furthermore, since the front and back surfaces of the bag-like rotary cleaning body 65 can be used, the bag-like rotary cleaning body 65 can be used for a long life by being configured to have a surface for rough polishing and a surface for finishing polishing, or by replacing the front and back surfaces.

  Therefore, according to the vacuum cleaner 1 and the suction port body 26 according to the present embodiment, it is possible to polish the surface to be cleaned more efficiently than simply wiping while suppressing an increase in the operating force of the suction port body 26. it can.

  The vacuum cleaner 1 according to the present invention is not limited to the canister type vacuum cleaner 1, and may be an upright type, a stick type, a handy type, or an autonomous type vacuum cleaner 1.

  Although several embodiments of the present invention have been described, these embodiments are presented by way of example and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the scope of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are included in the invention described in the claims and the equivalents thereof.

DESCRIPTION OF SYMBOLS 1 Electric vacuum cleaner 2 Vacuum cleaner main body 3 Pipe part 5 Main body case 6 Wheel 7 Dust separation dust collection part 8 Electric blower 9 Main body control part 11 Power cord 12 Main body connection port 16 Power plug 19 Connection pipe 21 Dust collection hose 22 Hand operation pipe 23 Grasping part 24 Operation part 24a Stop switch 24b Start switch 25 Extension pipe 26 Suction port body 28 Suction port 29 Rotating cleaning body 31 Electric motor 31a Output shaft 32 Suction port body 33 Connection pipe part 35 Case body 36 Lower case 37 Upper case 38 Lid Case 39 Rotating connection pipe part 41 Swing connection pipe part 42 Suction chamber 43 Machine room 45 Suction port body control part 46 Control room 47 Inner wall 48 Outer 49 Communication pipe 51 Elastic support part 52 First pulley 53 Second pulley 55 Belt 56a, 56b Anti-vibration member 57 Shaft portion 58 Bristle brush 59 Blade 61 Bearing portion 62 Base portion 63 Arm portion 65 Bag-shaped rotary cleaning body 65a Cleaning Surface 65b Opening 66, 66a, 66b Convex part

Claims (6)

A suction port body having a suction port on the bottom surface;
A rotary cleaning body disposed in the suction port, having a shaft portion rotatably supported by the suction port body and a linear or plate-shaped first cleaning member extending in a radial direction of the shaft portion;
A detachable second cleaning body having a bag shape and having a cylindrical cleaning surface that covers the first cleaning member and rotates and integrates with the rotary cleaning body. . 2. The suction port according to claim 1, wherein the second cleaning body has an opening through which the rotary cleaning body can pass and the opening of the first cleaning member can be suppressed when the opening diameter is reduced. body. The suction port body according to claim 1, wherein the second cleaning body has a mesh-like unevenness inclined with respect to the rotation direction. The suction port body according to claim 3, wherein the unevenness is a lattice formed of a woven fabric, a knitted fabric, a nonwoven fabric or a resin film. The suction port body according to claim 3 or 4, wherein the second cleaning body has the mesh-like irregularities having different meshes on the front and back sides of a bag shape. The vacuum cleaner provided with the suction inlet body of any one of Claim 1 to 5.

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