JP2015019771A - Vacuum cleaner suction port assembly and vacuum cleaner using the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vacuum cleaner suction port assembly that eliminates the falling of a brush member due to a static pressure and suppresses the dust remainder such as dust storm in a simple structure, and a vacuum cleaner using the same.SOLUTION: A vacuum cleaner suction port assembly includes a suction port body having a suction port in the lower surface, a brush locking member attached to the rear of the suction port in the lower surface of the suction port body, and a brush member locked in the brush locking member. The brush member comprises a part to be locked and a brush part. The brush locking member comprises a locking part substantially U-shaped in a fore-and-aft direction cross section view and locking the part to be locked, and a rib part provided from one end of the locking part so as to be projected in the lower direction and suppressing the falling of the brush part.

Description

  The present invention relates to a mouthpiece of a vacuum cleaner and a vacuum cleaner using the same.

  As a conventional technique, there is a suction body of a vacuum cleaner in which a brush member is attached to a U-shaped brush locking member and fitted and fixed to a suction body having a suction port (for example, Patent Document 1).

JP 2008-86825 A

  However, in the mouthpiece described in Patent Document 1, since the brush member is attached by the U-shaped brush locking member, the position of the bottom surface of the mouthpiece main body (position from the inlet port) is set so that the brush member does not fall down due to static pressure. In addition, it is necessary to select the type (material, diameter, density) of the brush member to be configured and the configuration of the brush member to be configured. Also, in the operation of pulling the mouthpiece (backward movement), fine dust, such as dust, that could not be sucked into the channel of the mouthpiece remains at the base of the brush member, and at the same time as the operation of turning off the power There is a risk that the static pressure of the mouthpiece will drop and spill again on the floor, leaving dust.

  SUMMARY OF THE INVENTION An object of the present invention is to provide a suction mouthpiece for a vacuum cleaner and a vacuum cleaner using the same, in which the brush member does not fall down due to static pressure with a simple configuration and suppresses dust residue such as dust. .

  The present invention includes a suction body having a suction port on a lower surface, a brush locking member attached to the rear surface of the suction port on the lower surface of the suction body, and a brush member locked to the brush locking member. The brush member includes a locked portion and a brush portion, and the brush locking member is substantially U-shaped in a cross-sectional view in the front-rear direction, and a locking portion that locks the locked portion; The rib portion is provided so as to protrude downward from one end portion of the locking portion, and suppresses the fall of the brush portion and fine dust such as sand dust from adhering to the base.

  According to the present invention, there is provided a vacuum cleaner that has a simple configuration and does not cause the brush member to fall down due to static pressure, prevents fine dust such as dust from entering the base of the brush, and suppresses dust residue such as dust. A mouthpiece and a vacuum cleaner using the same can be provided.

It is an appearance perspective view showing the whole vacuum cleaner concerning an embodiment of the present invention. It is a top view of a mouthpiece concerning an embodiment of the present invention. It is a bottom view of the mouthpiece concerning the embodiment of the present invention. It is a top view which shows the state which removed the upper case of the suction mouth which concerns on embodiment of this invention. It is AA sectional drawing of FIG. It is BB sectional drawing of FIG. It is a side view of the mouthpiece concerning the embodiment of the present invention of the state separated from the floor surface. It is a side view of the mouthpiece concerning the embodiment of the present invention in the state where it touches the floor. It is a side view of the mouthpiece concerning the embodiment of the present invention at the time of advance. It is a side view of the mouthpiece concerning the embodiment of the present invention at the time of retreat. It is an AA line sectional view of Drawing 2, and is an enlarged view near the 2nd rotation cleaning object. It is a bottom view of the mouthpiece concerning the embodiment of the present invention. It is an external appearance perspective view of the site | part of the mouthpiece which concerns on embodiment of this invention. It is the schematic showing the relationship between the cut shape in the raising cloth which concerns on embodiment of this invention, and the inclination direction of a brush body. It is a whole sectional view of a mouthpiece concerning an embodiment of the present invention. It is an expanded sectional view of FIG. It is an expanded sectional view of FIG. It is sectional drawing of the suction mouth which concerns on embodiment of this invention. (A) (b) It is sectional drawing of the brush latching member 120 which concerns on another embodiment of this invention. It is a bottom view of a mouthpiece concerning an embodiment of the present invention. It is the back whole figure of a mouthpiece concerning an embodiment of the present invention. FIG. 22 is an enlarged view of FIG. 21. It is a side view of a mouthpiece concerning an embodiment of the present invention. It is a front whole figure of a mouthpiece concerning an embodiment of the present invention. It is a center sectional view of a mouthpiece concerning an embodiment of the present invention.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings as appropriate. However, the embodiments are not limited to the following contents, and can be implemented with appropriate modifications within the scope of the gist of the present invention. It is.

  FIG. 1 is an external perspective view showing an entire vacuum cleaner 1 according to an embodiment of the present invention. As shown in FIG. 1, the vacuum cleaner 1 includes a vacuum cleaner body 2, a hose portion 3, an operation tube 4 provided with a hand operation switch SW and the like, an extension tube 5 provided in a telescopic manner, and a mouthpiece A body 6 is provided.

  The vacuum cleaner body 2 includes an electric blower 2a that generates a suction force, a dust collection portion 2b that stores dust collected by the suction force of the electric blower 2a, and the like. In this embodiment, a so-called cyclonic vacuum cleaner will be described as an example. However, the present embodiment may be applied to a so-called paper pack type vacuum cleaner.

  One end of the hose part 3 is connected to the connection port 2c of the cleaner body 2 so as to communicate with the dust collecting part 2b of the cleaner body 2. Further, the other end of the hose portion 3 is connected to one end of the operation tube 4.

  The operation tube 4 includes a grip 4 a having a hand operation switch SW and the like, a power supply terminal (not shown) to which power is supplied from the cleaner body 2 to which the extension tube 5 is connected. An energization terminal (not shown) provided at one end of the extension pipe 5 is connected to the power supply terminal.

  By operating the hand operation switch SW of the operation tube 4, the operation of the electric blower 2 a can be switched between strong and weak, and the first rotary cleaning body 20 provided on the suction body 6 can be turned on and off.

  The extension pipe 5 includes an outer pipe 5a and an inner pipe 5b. One end of the inner pipe 5b is inserted into the other end of the outer pipe 5a, and is provided inside the outer pipe 5a and the inner pipe 5b (not shown). The air passages are connected so as to communicate with each other, and are configured to be extendable. FIG. 1 illustrates a state in which the extension pipe 5 is shortest.

  FIG. 2 is a top view of the mouthpiece 6 according to the embodiment of the present invention.

  As shown in FIG. 2, the mouthpiece 6 includes a mouthpiece case 10 having a substantially T shape when viewed from above, and a mouthpiece joint 13 connected to the mouthpiece case 10.

  The mouthpiece case 10 has a mouthpiece body 11 that is elongated in the left-right direction (width direction, the rotation axis direction of the first rotary cleaning body 20 to be operated later), and a center portion in the longitudinal direction of the mouthpiece body 11 when viewed from above. A connecting portion 12 connected to the suction joint 13 is provided. A flow path R (see FIG. 3) that connects the suction body 11 and the suction joint 13 is formed in the connecting portion 12.

  The mouthpiece main body 11 is provided with a bumper 11a from the front end surface to the left and right side surfaces. The bumper 11a is made of an elastic material such as rubber or elastomer. The bumper 11a keeps the airtightness in the mouthpiece main body 11 when used, and the mouthpiece main body 11 collides with furniture or the like when the vacuum cleaner 1 (see FIG. 1) is used. When it does, while preventing the said furniture etc. from being damaged, it plays the role of the shock absorbing material which absorbs the impact to the suction mouth main body 11.

  The mouthpiece 6 includes a light emitting means 70 at the center in the longitudinal direction (left-right direction) of the mouthpiece body 11. The light emitting means 70 is selected by operating the hand operation switch SW of the operation tube 4 or the like, for example, a strong, medium or weak state of operation of the electric blower 2a (for example, red for strong operation, orange for medium operation, orange for weak operation) Is green).

  The suction joint 13 includes a first connecting pipe 14 that is rotatably connected to the connecting portion 12, and a second connecting pipe 15 that is rotatably connected to the first connecting pipe 14. Yes.

  The first connection pipe 14 has a substantially semi-track shape in the top view shown in FIG. 2, and has a cylindrical shaft 14 a having a partially open flow passage connected to the connecting portion 12. The shaft 14 a is supported by a pair of bearing portions 12 g (see FIG. 4) in which the axial direction is the longitudinal direction of the mouthpiece body 11 and both ends of the shaft 14 a are formed in the connecting portion 12. Further, the first connecting pipe 14 is configured to be rotatable from a substantially parallel state to a substantially vertical state (up and down direction) with respect to the floor surface (cleaning surface). That is, by rotating the first connection pipe 14 with respect to the suction case 10 with the shaft 14a as a fulcrum, the extension pipe 5 can be rotated between a state substantially parallel to the floor surface and a state substantially vertical. it can.

  The second connection pipe 15 is configured to be rotatable with respect to the first connection pipe 14 in the longitudinal direction (clockwise and counterclockwise in FIG. 2). Thereby, for example, the extension pipe 5 can be brought down to a state substantially parallel to the floor surface from a state where the extension pipe 5 is substantially perpendicular to the floor surface.

  The second connection pipe 15 is provided with power supply terminals 15a and 15a for supplying power. In addition, in the vacuum cleaner 1 (refer FIG. 1) of this embodiment example, it is comprised so that the electric power supplied to the suction body 6 may be supplied from the cleaner body 2 through the hose part 3, the operation tube 4, and the extension tube 5. ing.

  Such a suction joint 13 is, for example, capable of tilting the extension pipe 5 in the left-right direction (longitudinal direction) in a state where the extension pipe 5 (see FIG. 1) is substantially perpendicular to the floor surface. 4 (grip 4a) is rotated clockwise or counterclockwise to rotate the mouthpiece body 11 approximately 90 degrees clockwise or counterclockwise, and cleaning with the longitudinal direction of the mouthpiece body 11 in the moving direction is performed. Is possible. Therefore, it is possible to clean by moving the mouthpiece 6 along the wall or inserting the mouthpiece 6 into a narrow gap.

  FIG. 3 is a bottom view of the mouthpiece 6 according to the embodiment of the present invention.

  As shown in FIG. 3, the mouthpiece 6 includes a first rotary cleaning body 20 having a substantially cylindrical shape and two second rotary cleaning bodies 30 having a substantially cylindrical shape. In the suction case 10 (suction body 11), a suction chamber Q2 having an opening serving as a suction port is formed on a lower surface (a surface facing the cleaning surface). In addition, the number of the 1st rotation cleaning bodies 20 and the 2nd rotation cleaning bodies is not restricted to this.

  The first rotary cleaning body 20 is arranged on the front side of the connecting portion 12 in the front-rear direction along the longitudinal direction (left-right direction) of the suction body 11 and is rotatably supported by the suction body 11.

  Moreover, the 1st rotation cleaning body 20 is provided with several types of brushes 20a, 20b, 20c, such as a brush body and an elastic body from which a wire diameter, a density, and hardness differ, and each brush 20a, 20b, 20c is the rotating shaft 21 ( (See FIG. 6). In this embodiment, the case where three types of brushes 20a, 20b, and 20c are provided has been described as an example. However, the present invention is not limited to this and may be two or less types. There may be more types, and a configuration in which a blade member made of an elastic material such as rubber is spirally arranged between spirally arranged brushes may be added and can be changed as appropriate.

  The second rotary cleaning body 30 is a member having a diameter smaller than the diameter of the first rotary cleaning body 20. The second rotary cleaning body 30 has a brush body (raised cloth) 30b on the surface. In the present embodiment, there are two second rotary cleaning bodies 30, and in the suction body 11, the left and right sides of the longitudinal direction of the suction body 11 (the axial direction of the first rotary cleaning body 20) behind the first rotational cleaning body 20. Are arranged in each direction. In other words, the second rotary cleaning body 30 is provided on both sides of the inlet body 11 with the flow path R (see FIG. 3) interposed therebetween. For example, one second rotary cleaning body 30 has a diameter that is approximately one half of the diameter of the first rotary cleaning body 20 and a length that is approximately one third of the axial length of the first rotary cleaning body 20. In the suction body 11, two second rotary cleaning bodies 30 can be provided on both sides of the flow path R.

  Each second rotary cleaning body 30 has a shaft 30 a parallel to the rotation shaft 21 of the first rotary cleaning body 20. A cut pile-shaped brush body (raised cloth) 30b formed of fine fibers is spirally wound around the rotation axis of the pipe body 30e on the outside of the pipe body 30e (see FIG. 6) on the outer periphery of the shaft 30a. The fine fibers of the brush body (raised cloth) 30b are inclined in one direction with respect to the pipe body 30e. The brush body (raised cloth) 30b is provided so as to be in contact with a part of the suction body 6, and allows the second rotary cleaning body 30 to rotate when the suction body 6 moves backward, and the first rotation body 30b when moving forward. The two-rotary cleaning body 30 is provided so as to be inclined in the circumferential direction so as to regulate the rotational operation. Holders 30c and 30d are fixed to both end faces of the pipe body 30e. The holders 30c and 30d hold the end of the wound brush body (raised cloth) 30b to prevent peeling, and also serve as a bearing for the shaft 30a. Since the shaft 30a and the pipe body 30e are substantially concentric and have a gap, the pipe body 30e and the brush body (raised cloth) 30b are thereby rotatably supported on the shaft 30a. Thus, instead of driving the second rotary cleaning body 30 with an electric motor, the second rotary cleaning body 30 is supported by the suction body 11 via the shaft 30a and driven to rotate by contact with the floor surface. The configuration can be simplified. Further, since the fine fibers of the brush body (raised cloth) 30b are inclined in one direction with respect to the pipe body 30e so as to allow the rotation operation in one direction and restrict the rotation operation in the other direction, the assembly of the mouthpiece 6 The holders 30c and 30d use different colors, change their shapes, etc., so that the parts corresponding to the holders 30c and 30d in the mouthpiece body 11 also have different colors and shapes accordingly. By changing the, the left and right mounting direction can be understood, so that it cannot be installed by mistake.

  The left-right width of the second rotary cleaning body 30 including the holders 30c and 30d is configured to be shorter than the width L1 of the storage chamber to which the second rotary cleaning body 30 is attached. Therefore, the 2nd rotation cleaning body 30 has a clearance gap on either side, and can move to the left and right along the shaft 30a by this clearance gap. Thus, it is possible to prevent slender dust such as lint and hair on the floor from winding around the shaft 30a during cleaning, and even if it is wound around the shaft 30a, it can be easily removed.

  The suction case 10 is provided with a brush drive switch 16 on the lower surface of the connection portion 12 of the suction case 10, and a wheel 17 is provided behind the brush drive switch 16 (the rear end of the connection portion 12).

  The brush drive switch 16 is a switch that detects whether or not the lower surface of the mouthpiece 6 is in contact with the cleaning surface. The brush drive switch 16 includes a wheel 16a, and the wheel 16a is provided so as to always protrude from the lower surface of the suction case 10 (connecting portion 12) by a biasing means such as a spring. When it is detected that the wheel 16a has popped out and is not in contact with the floor surface, the driving of the electric motor 40 is stopped by a circuit board 50 (control board) described later. Further, when it is detected that the wheel 16 a is pushed in and in contact with the floor surface, the electric motor 40 is driven by the circuit board 50.

  The wheel 17 has a role of improving the operating performance of the mouthpiece 6 by contacting the bottom surface of the mouthpiece 6 with the cleaning surface in response to the stress of the forward and backward movement and rotation operated by the operation tube 4. .

  FIG. 4 is a top view showing a state where the upper case 11B of the mouthpiece 6 is removed.

  As shown in FIG. 4, the suction body 6 includes a motor 40 that drives the first rotary cleaning body 20 and a circuit board that controls the motor 40 above the first rotary cleaning body 20 and the pair of second rotary cleaning bodies 30. 50.

  The electric motor 40 is attached to one end side of the suction body 11 in the longitudinal direction. Further, the output shaft 40 a (see FIG. 5) of the electric motor 40 is arranged in parallel with the longitudinal direction of the suction mouth body 11. Further, the output shaft 40a of the electric motor 40 extends toward one end side in the longitudinal direction, and at one end portion (the end portion on the right side in the drawing) in the suction body 11 of the first rotary cleaning body 20 via the toothed belt 40b. The rotary shaft 21 (see FIG. 5) is connected.

  The cover member 43 is formed of an insulating member having elasticity such as synthetic rubber. Since the one end side of the electric motor 40 is supported in the storage chamber Q1 by using the elasticity of the cover member 43, the vibration of the electric motor 40 is vibrated. The structure is difficult to be transmitted to the mouthpiece case 10.

  The circuit board 50 is attached to the other end side of the suction body 11 in the longitudinal direction. Further, the circuit board 50 is formed of a rectangular board arranged with the long side facing the longitudinal direction, and is arranged in the mouthpiece body 11 so that the mounting surface 50a faces upward in the vertical direction. The mounting surface 50a is not necessarily limited to the one that faces upward in the vertical direction, and may be inclined with respect to the horizontal direction or may be directed in the front-rear direction (vertically).

  5 is a cross-sectional view taken along the line AA in FIG.

  As shown in FIG. 5, the mouthpiece body 11 of the mouthpiece case 10 includes a lower case 11 </ b> A that forms a lower portion so as to cover the first rotary cleaning body 20, and an upper case 11 </ b> B that is attached to the upper portion of the lower case 11 </ b> A. I have. The main parts of the suction case 10 including the lower case 11A and the upper case 11B and the suction joint 13 described above are formed of a light and hard material, for example, a synthetic resin material such as ABS resin, and the rigidity is enhanced.

  The lower case 11A has a partition wall 11c that partitions a suction chamber Q2 in which the first rotary cleaning body 20 is disposed and a storage chamber Q1 in which the electric motor 40 is accommodated. The partition wall 11c includes a curved portion 11d formed along the surface of the first rotary cleaning body 20 and a curved portion 11e formed along the surface of the second rotary cleaning body 30. The curved portion 11d and the curved portion 11c are curved. The part 11e is formed continuously. Further, the curved portion 11d extends to a substantially front end portion of the first rotary cleaning body 20 in a sectional view. The curved portion 11e extends to the rear side of the rear end portion of the second rotary cleaning body 30 and the rear side of the shaft 30a in the cross-sectional view.

  The upper case 11B is formed integrally with the connecting portion 12 and covers a main body portion 11f that covers the upper portion of the electric motor 40 and the circuit board 50 (see FIG. 4), and a cover portion 11g that is arranged on the outside of the main body portion 11f. have. The cover portion 11g is disposed over the front portion and the left and right end portions of the upper case 11B (see FIG. 2). In this embodiment, the bumper 11a is held by being sandwiched between the lower case 11A and the upper case 11B (cover portion 11g).

  As for the 1st rotation cleaning body 20, the core member 22 which hold | maintains brush 20a, 20b, 20c helically on the rotating shaft 21 is externally fitted. Thus, by arranging the brushes 20a, 20b, and 20c in a spiral shape, the brushes 20a, 20b, and 20c are continuously provided on the floor M (see FIG. 8) when the first rotary cleaning body 20 rotates. This can be applied, and vibration during operation of the first rotary cleaning body 20 can be suppressed.

  The second rotary cleaning body 30 is arranged at a position where the brush body (raised cloth) 30b having a substantially circular cross section is attached to the shaft 30a via the pipe body 30e and does not contact the first rotary cleaning body 20 in the suction mouth body 11. Has been. As described above, the first rotary cleaning body 20 and the second rotary cleaning body 30 are brought close to each other within the range in which the second rotary cleaning body 30 does not come into contact with the first rotary cleaning body 20. The width D (see FIG. 2) can be shortened, and the mouthpiece 6 can be reduced in size and weight.

  The stator 41 of the electric motor 40 has a substantially oval cross section (outline of cross section orthogonal to the output shaft 40a, round cross section). The stator 41 includes a pair of arc portions 41a and a pair of linear portions 41b that connect these arc portions 41a. The electric motor 40 is not limited to a substantially oval shape, and may be a circular shape.

  In addition, the electric motor 40 is accommodated in the accommodation chamber Q1 such that the linear portion 41b is inclined with respect to the vertical axis Z1, that is, one arc portion 41a faces upward and the other arc portion 41a faces backward and downward. Has been.

Moreover, the electric motor 40 is arrange | positioned so that the front-end part 41s of the electric motor 40 (stator 41) may be located ahead of the rear-end part 20s of the 1st rotation cleaning body 20 in the storage chamber Q1.
Thereby, the distance of the electric motor 40 which protrudes back from the rear-end part 20s of the 1st rotation cleaning body 20 can be shortened, and it becomes possible to shorten the front-back width D (refer FIG. 2) of the suction inlet main body 11. FIG.

  Moreover, the electric motor 40 is arrange | positioned so that the lower end part 41t of the electric motor 40 (stator 41) may be located in the downward direction of the perpendicular direction rather than the upper end part 20t of the 1st rotation cleaning body 20 in the storage chamber Q1. Thereby, the distance of the electric motor 40 which protrudes upward from the upper end part 20t of the 1st rotation cleaning body 20 can be shortened, and height (maximum height) can be made low from the cleaning surface of the suction inlet main body 11. FIG. As a result, the mouthpiece body 11 can be easily inserted into a low gap such as a sofa or a bed.

  An armature 44 is rotatably supported inside the stator 41. On the inner periphery of the stator 41, two magnets 45 formed in a field tile shape are fixed with a gap in the circumferential direction. That is, the electric motor 40 of the present embodiment is a two-pole seven-slot motor provided with seven slots and two magnets 45. The number of slots described above is not limited to seven, and may be set to another number (for example, eight).

  Further, the upper case 11B of the mouthpiece main body 11 has a shape substantially along the arc portion 41a and the straight portion 41b in the vicinity of the arc portion 41a and the vicinity of the straight portion 41b. Further, the lower case 11A of the suction body 11 has an outer wall 11h that curves downward and extends downward from the housing chamber Q1 constituted by the lower case 11A and the upper case 11B, behind the first rotary cleaning body 20. . The outer wall 11h extends along the curved surface (surface) of the second rotary cleaning body 30, and the lower end portion 11h1 of the outer wall 11h is lowered to a substantially height position of the shaft 30a of the second rotary cleaning body 30. It extends.

  6 is a cross-sectional view taken along line BB in FIG.

  As shown in FIG. 6, the circuit board 50 is disposed in the accommodation chamber Q <b> 1 so that the mounting surface faces upward in the vertical direction (vertical direction). That is, the circuit board 50 is arranged not on the rear side of the first rotary cleaning body 20 but on the upper side of the upper end portion 20t of the first rotary cleaning body 20. The circuit board 50 is fixed in the mouthpiece body 11 so as not to be displaced by positioning means (not shown) or screw fixing. Further, in the present embodiment example, the case where the circuit board 50 is horizontally arranged has been described as an example. However, the circuit board 50 may be arranged in an inclined state with respect to the horizontal direction. The circuit board 50 may be placed upright so that the mounting surface 50 faces in the front-rear direction.

In the second rotary cleaning body 30, a cut pile-like brush body (brushed cloth) 30b formed of fine fibers is wound on the outside of the pipe body 30e in a spiral shape, and the brush body (raised cloth) 30b is finely wound. The fibers are inclined in the circumferential direction with respect to the pipe body 30e. Holders 30c and 30d are fixed to both end faces of the pipe body 30e. And these holders 30c and 30d serve as both the prevention of peeling of the edge part of the wound raising cloth 30b, and the bearing of the shaft 30a. The tip of the brushed fabric 30b has a brush height that contacts the surface of the partition curved portion 11e.
For this reason, when the second rotary cleaning body 30 rotates, a frictional resistance is generated between the brush body (raised cloth) 30b and the surface of the partition curved portion 11e, but the fine fibers are circumferential with respect to the pipe body 30e. Since it is inclined in the direction, the frictional resistance is small and rotates freely in the rotational direction W2, but the frictional resistance is large in the rotational direction W3 and is almost locked. That is, the brush body (raised cloth) 30b is provided so as to be in contact with the partition curved portion 11e, and allows the second rotary cleaning body 30 to rotate in the rotational direction W2 when the suction body 6 moves backward, and It is provided so as to be inclined in the circumferential direction so as to restrict the rotational movement of the second rotary cleaning body 30 in the rotational direction W3 during forward movement.

  Further, since the brush body (raised cloth) 30b is evenly wound around the entire circumference of the shaft 30a, it is easy to maintain the airtightness of the suction chamber Q2, and noise generated by the air leaking from the suction chamber Q2 and the airflow flowing through the gaps. Can be reduced.

  Further, as shown in FIG. 3, the second rotary cleaning body 30 has a gap on the left and right sides, but when the suction body 6 is in contact with the floor surface M for cleaning, the second rotary cleaning body 30 is sucked to the center by suction. Since it moves so as to close the gap on the central side where the flow velocity is fast, leakage noise can be suppressed.

  FIG. 7 is a side view showing a state where the mouthpiece according to the embodiment of the present invention is separated from the floor surface.

  As shown in FIG. 7, when the suction body 6 is not in contact with the floor surface M, the lower end 20 u of the first rotary cleaning body 20 is more vertically oriented than the lower end 30 u of the second rotary cleaning body 30. Located below. Moreover, the wheel 16a provided in the lower surface of the connection part 12 protrudes, the brush drive switch 16 is turned off, and the operation | movement of the 1st rotary cleaning body 20 stops.

  FIG. 8 is a side view of the mouthpiece according to the embodiment of the present invention in contact with the floor surface.

  As shown in FIG. 8, when the suction body 6 contacts the floor M, the wheel 16a is pushed in, the brush drive switch 16 is turned on, and the first rotary cleaning body 20 is in the W1 direction (counterclockwise direction in the figure). Rotate. At this time, since the brushes 20a, 20b, and 20c in the region in contact with the floor surface M are bent, a sufficient amount of contact between the brushes 20a, 20b, and 20c and the floor surface M can be secured. Dust can be scraped effectively.

  Similarly, when the second rotary cleaning body 30 is in contact with the floor surface M, the brush body (raised cloth) 30b in the region in contact with the floor surface M is bent, so that the brush body (raised cloth) 30b and the floor surface are bent. A sufficient contact resistance with M can be secured.

  FIG. 9 is a side view of the state in which the mouthpiece 6 according to the embodiment of the present invention is retracted.

  As shown in FIG. 9, the second rotary cleaning body 30 has a smaller contact resistance between the brush body (raised cloth) 30b and the partition curved portion 11e than the contact resistance between the brush body (raised cloth) 30b and the floor surface M. , W3, and the dust DS on the floor is introduced into the suction chamber Q2. The introduced dust DS is carried from the suction chamber Q2 (see FIG. 6) to the passage of the suction joint 13 through the flow path R (see FIG. 3), and then through the extension pipe 5, the operation pipe 4 and the hose portion 3 to the vacuum cleaner. It is sucked into the dust collecting part 2b of the main body 2 (see FIG. 1). The air from which the dust has been removed by the dust collecting portion 2b passes through a filter (not shown) and the electric blower 2a and is discharged to the outside of the cleaner body 2 (see FIG. 1).

  FIG. 10 is a side view of the state in which the mouthpiece 6 according to the embodiment of the present invention is moving forward.

  As shown in FIG. 10, in the second rotary cleaning body 30, the contact resistance between the brush body (raised cloth) 30b and the partition curved portion 11e is larger than the contact resistance between the brush body (raised cloth) 30b and the floor surface M. The dust sucked into the suction chamber Q2 without rotating can be prevented from being swept out to the rear of the suction body 11. In particular, the dust sucked into the suction chamber Q <b> 2 by the rotation of the first rotary cleaning body 20 can be prevented from being flipped rearward and jumping out to the rear of the suction body 11.

  The sucked dust DS is carried from the suction chamber Q2 (see FIG. 6) to the passage of the suction joint 13 through the flow path R (see FIG. 3), and then through the extension pipe 5, the operation pipe 4 and the hose portion 3 to the vacuum cleaner. It is sucked into the dust collecting part 2b of the main body 2 (see FIG. 1). The air from which the dust has been removed by the dust collecting portion 2b passes through a filter (not shown) and the electric blower 2a and is discharged to the outside of the cleaner body 2 (see FIG. 1).

  As described above, according to the present embodiment, the second rotary cleaning body 30 in contact with the floor surface M is provided behind the first rotary cleaning body, so that the suction body 6 is retracted (the suction body 6 When the second rotary cleaning body 30 is rotated by contact resistance with the floor surface M, dust behind the suction port body 11 can be sucked into the suction chamber Q2.

  Further, when the suction body 6 is moved forward (when the suction body 6 is pushed forward), the rotation of the second rotary cleaning body 30 is restricted, so that the first rotary cleaning body 20 causes the suction chamber Q2 to enter the suction chamber Q2. It is possible to prevent the dust that has been scraped out from being swept out to the rear of the mouthpiece body 11.

  Further, according to the present embodiment example, it is not necessary to provide a movable part as a means for regulating the rotation direction of the second rotary cleaning body 30, so that the structure is simplified. In addition, there is little possibility that the regulation function is impaired by the intrusion of sand dust or the like.

  In this embodiment, the tip of the brush body (raised cloth) 30b of the second rotary cleaning body 30 has a brush height that touches the entire surface of the partition curved portion 11e. For example, as shown in FIG. 11, projections 35a, 35b, and 35c having a substantially triangular cross-section are provided on the inner side of the partition curved portion 11e. (Blanket) By setting the brush height so that the tip of 30b is in contact, the frictional resistance is small in the rotational direction W2 and the roller rotates almost freely. Become.

  More specifically, the rotational driving force of the second rotary cleaning body 30 is a frictional force between the brush body (raised cloth) 30b and the floor M, and the rotational braking force of the second rotary cleaning body 30 is the brush body ( It is the frictional force between the raised fabric 30b and the projections 35a, 35b, 35c. The fine fibers of the raised cloth 30b are inclined in the circumferential direction with respect to the pipe body 30e, and the direction of the inclination is the position where the brush body (raised cloth) 30b is in contact with the floor surface from the front to the rear of the mouthpiece 6. The direction. For this reason, when the suction body 6 is advanced, the frictional force between the raised cloth 30b and the floor surface M, that is, the rotational driving force of the second rotary cleaning body 30, is reduced, and the brush body (raised cloth) 30b and the protrusions 35a and 35b. , 35c, that is, the rotational braking force of the second rotary cleaning body 30 is increased, and the rotation of the second rotary cleaning body 30 is restricted. Conversely, when the suction body 6 is moved backward, the frictional force between the brush body (raised cloth) 30b and the floor surface M, that is, the rotational driving force of the second rotary cleaning body 30 increases, and the brush body (raised cloth) 30b and the protrusion The frictional force with 35a, 35b, 35c, that is, the rotational braking force of the second rotary cleaning body 30 is reduced, and the second rotary cleaning body 30 rotates.

  In the present embodiment example, it is described that the second rotary cleaning body 30 is substantially locked when the rotation direction W3 of the second rotary cleaning body 30; however, it is not always necessary to lock the second rotary cleaning body 30 while the suction body 6 is moving forward. If the rotation of the body 30 becomes slower than when it is free, the dust swept into the suction chamber Q2 by the first rotary cleaning body 20 can be prevented from being swept out to the rear of the mouthpiece body 11. it can.

In this embodiment, a brush body (raised cloth) 30 b is provided on the surface of the second rotary cleaning body 30, and the brush body (raised cloth) 30 b is provided so as to be in contact with a part of the mouthpiece 6. In this case, the suction body 6 is provided so as to be inclined in the circumferential direction so as to permit the rotation operation when the suction body 6 is retracted and to restrict the rotation operation when the suction body 6 moves forward. A simple structure may be used as long as it is a member and an attachment method that have the effect of restricting rotation in one direction and allowing rotation in the other direction during rotation. For example, it is considered that the above effect can be obtained by using the brush body (raised cloth) 30b of the present embodiment as an elastic body.
FIG. 12 is a bottom view of the mouthpiece according to the embodiment of the present invention. FIG. 13 is an external perspective view of the second rotary cleaning body according to the embodiment of the present invention. As shown in FIG. 12, the brush body (raised cloth) 30b on the surface of the second rotary cleaning body 30 is provided by spirally winding a raised cloth cut out with a predetermined width and shape around the rotary shaft 30a. Yes. Here, the raised cloth is comprised from the base material and the brush currently planted by the base material. The brushed fabric of this embodiment is provided with an inclined brush, so when cutting the brushed fabric with a predetermined width and shape into a punching die that operates in the vertical direction like the Thomson type, The tip of the brush in the inclined direction of the inclined brush body (raised cloth) 30b is also cut, and there is a possibility that the raised cloth winding line 30e is generated when it is wound spirally.
The raised cloth winding 30e may cause dust to leak or generate wind noise (fluid sound) that is noise of the suction mouthpiece. In the present embodiment, the brush body 30b in the second rotary cleaning body can be arranged seamlessly with a predetermined width, so that the effect of suppressing the leakage of dust and the reduction of fluid sound can be achieved. Furthermore, since only the base material on which the brush of the brush body (brushed cloth) 30b is planted is cut, the brush of the inclined brush body (brushed cloth) 30b can be prevented from being cut. A two-turn cleaning body 30 can be configured. When the substrate is cut, it may be performed by any method such as manual processing or a laser processing machine. The shape of the brush body (raised cloth) 30b on the surface of the second rotary cleaning body 30 only has to be cut out with a predetermined width and shape, and is a bonding material such as an adhesive material used by a machine (equipment) and manual work? Alternatively, it may be fixed to the rotary shaft 30a by injection molding (insert molding) or the like.
FIG. 14 is a schematic view showing the relationship between the cut shape and the brush body inclination direction in the raised cloth according to the embodiment of the present invention.
If the brush is inclined in parallel with the punched end 30k of the brush body (raised cloth) 30b, it is possible to wind efficiently because it is possible to reduce the disposal margin when it is wound around the rotary shaft 30a. The width of the brush body (raised cloth) 30b and the width of the brush body (raised cloth) 30b when wrapping are determined based on the width dimension W and the cut angle θ. If it is made to incline or cut so that the punched end 30k is parallel, it is easy to be caught.
However, the processing step may involve winding around the rotary shaft 30a that has been cut to the final length to be used, or winding it around the rotary shaft 30a having a certain length, and then cutting to finish the dimensions to be used. The method is not limited to the above.

  As described above, according to the present embodiment, since the second rotary cleaning body 30 is substantially fixed and comes into contact with the floor surface when moving forward, the dust sucked from the front side is collected from the second rotary cleaning body 30 with a simple configuration. It is possible to make it difficult to discharge to the rear, and when retreating, the second rotary cleaning body 30 can be rotated to transport the dust behind the suction body 6 to the suction chamber Q2, and the remaining dust can be suppressed. . Moreover, although the case where the 1st rotation cleaning body and the electric motor which rotationally drives this were used was demonstrated in this embodiment, the 1st rotation cleaning body is used using the suction | attraction force which generate | occur | produces with the electric blower 2a of the cleaner body 2. The same effect can be obtained without driving the first rotating cleaning body.

  FIG. 15 is an overall cross-sectional view of the mouthpiece according to the embodiment of the present invention. FIG. 16 is an enlarged cross-sectional view of FIG. FIG. 17 is an enlarged cross-sectional view of FIG. FIG. 18 is a cross-sectional view of a mouthpiece according to an embodiment of the present invention. FIGS. 19A and 19B are cross-sectional views of a brush locking member 120 according to another embodiment of the present invention.

  120 is a brush locking member. 130 is a brush member. Reference numeral 140 denotes a lower case constituting the suction body 6. Reference numeral 142 denotes a lower case convex portion. Reference numeral 140a denotes a lower case protection protrusion. Reference numeral 170 denotes an upper case constituting the mouthpiece 6.

  The brush locking member 120 is attached to the recess 123 of the lower case 140. The brush member 130 is attached to the brush locking member 120. The brush member 130 includes a locked portion 130a and a brush portion 130b, and is a substantially T-shaped member in a cross-sectional view in the front-rear direction. The brush locking member 120 includes a locking portion 121 (brush locking member front portion 120a, brush locking member bottom portion 120b, brush locking member rear portion 120c) provided so as to lock the locked portion 130a. A rib portion that prevents the brush portion 130b from collapsing provided to protrude downward from one end portion of the stop portion 121 (the brush locking member rear portion 120c) (substantially perpendicular to the brush locking member bottom portion 120b). 120d. The brush locking member front part 120a, the brush locking member bottom part 120b, and the brush locking member rear part 120c are substantially U-shaped members in a cross-sectional view in the front-rear direction. The brush locking member rib portion 120d can prevent the brush 125 from falling down due to static pressure, and has the effect of increasing the degree of freedom of the material, wire diameter, and density of the brush 125. Note that the shape is not limited as long as the portion 120d is provided so as to be substantially vertical (see FIGS. 19A and 19B).

  Further, the brush locking member 120 has a cross-sectional shape of the brush locking member 120 shown in FIG. 16 in order to fit and fix the brush member 130. In order to configure the cross-sectional shape of the brush locking member 120, it is necessary to configure the shape in the longitudinal direction, and formation by injection molding is difficult, and the cross-sectional shape is formed by an extrusion die or the like that can be formed in the cross-sectional shape. However, since the cut surface remains as an edge at the end portion formed by the extrusion die, it is necessary to process the end surface of the cut surface or cover the end portion by some method. As one of the methods, by providing the lower case protection protrusions 140a at both ends of the brush locking member 120, it is possible to prevent the user from touching with the hand or damage to the floor surface. Further, if the height H is configured such that the brush locking member front end 121 is lower than the lower case protection protrusion 140a, the above-described effect can be obtained. In other words, in a state where the lower surface of the mouthpiece 6 faces the floor surface, the distance from the floor surface to the brush locking member tip 121 is longer than the distance from the floor surface to the lower case protection protrusion 140a by H. The above-described effects can be obtained with this configuration.

  The lower case convex portion 142 is disposed on the rear end side of the brush member 130 in the lower case 140, and prevents dust such as rice grains discharged from the brush member 130 from being discharged out of the mouthpiece.

  FIG. 20 is a bottom view of the mouthpiece according to the embodiment of the present invention. Reference numeral 180 denotes a brush locking member presser. The brush locking member press 180 is provided at the rear part of the brush locking member 120, particularly at the rear part of the brush locking member rib part 120d. The strength of the brush locking member rib 120d is increased by the brush locking member press 180. In the present embodiment, two brush locking member presses 180 are provided, but the number and shape are not limited to this as long as the strength of the brush locking member rib portion 120d can be increased.

  FIG. 21 is an overall rear view of the mouthpiece according to the embodiment of the present invention. FIG. 22 is an enlarged view of FIG. FIG. 23 is a side view of the mouthpiece according to the embodiment of the present invention. Reference numeral 200 denotes a first rotary cleaning body pressing member. Reference numeral 200a denotes a first rotary cleaning body pressing member round-up surface. The first rotary cleaning body pressing member round-up surface 200a is positioned at both ends in the left-right direction and the rear part in the front-rear direction of the suction body 6. The first rotary cleaning body pressing member lifting surface 200 a is inclined from the bottom surface of the suction body 6 toward the side surface so as to have an angle Θ with respect to the bottom surface of the suction body 6. By providing the first rotary cleaning body pressing member raising surface 200a, it is possible to suppress the floor surface from being damaged by the contact between the suction body 6 and the floor surface that may occur when the suction body 6 is tilted with respect to the connecting pipe 160. The effect to do.

  FIG. 24 is an overall front view of the mouthpiece according to the embodiment of the present invention. 320 is a bumper member, and 300 is an end of the bumper member. In the bumper member 320, the bumper member end portion 300 is longer than the other portions. Behind the bumper member end portion 300, the brush portion 23 provided on the side portions of the brushes 20a, 20b, and 20c in the first rotary cleaning body 20 is located. Since the brush portion 23 is a harder member than the brushes 20a, 20b, and 20c, if dust such as rice grains rides on the brush portion 23 during suction, the floor surface may be damaged. Since the bumper member end portion 300 is positioned in front of the brush portion 23, the fear of the floor surface being damaged can be suppressed.

  FIG. 25 is an overall front view of the mouthpiece according to the embodiment of the present invention. Reference numeral 400 denotes a connecting pipe cover member. Reference numeral 410 denotes a connection pipe intake space.

In the vacuum cleaner, the suction body 6 is used in the main body of the vacuum cleaner having various suction performances. By adjusting the opening of the connection pipe intake space 410 by providing the structure of the connection pipe cover 400 for each model, The operability can be adjusted by adjusting the static pressure of the mouthpiece 6.

DESCRIPTION OF SYMBOLS 1 Electric vacuum cleaner 2 Vacuum cleaner main body 2a Electric blower 2b Dust collection part 6 Suction body 10 Suction case 11c, 11e, 11h Partition 20 First rotary cleaning body 30 Second rotary cleaning body 30a Rotary shaft 30b Brushed cloth 30c, 30d Holder 30e Brushed winding 40 Electric motor 50 Circuit board (circuit board)
35a, 35b, 35c Projection M Floor surface (cleaning surface)
Q2 suction room Q1 storage room

Claims (3)

An inlet body having an inlet on the lower surface;
On the lower surface of the suction port body, a brush locking member attached to the rear of the suction port, and a brush member locked to the brush locking member,
The brush member consists of a locked portion and a brush portion,
The brush locking member is substantially U-shaped in a cross-sectional view in the front-rear direction and is provided so as to protrude downward from one end portion of the locking portion and a locking portion that locks the locked portion. A mouthpiece of a vacuum cleaner, comprising: a rib portion that suppresses the falling of the brush portion. An inlet body having an inlet on the lower surface;
On the lower surface of the suction port body, a brush locking member attached to the rear of the suction port, and a brush member locked to the brush locking member,
The brush member consists of a locked portion and a brush portion,
The brush locking member is substantially U-shaped in a cross-sectional view in the front-rear direction and is provided so as to protrude downward from one end portion of the locking portion and a locking portion that locks the locked portion. A mouthpiece of a vacuum cleaner comprising rib portions for suppressing the falling of the brush portion, and having both end portions provided with suction port lower surface protrusions that are on the same surface as the brush locking member or traveled one step.   A vacuum cleaner comprising: an electric blower; a vacuum cleaner main body having a dust collecting portion for collecting dust; and a suction body of the vacuum cleaner according to claim 1 connected to the vacuum cleaner main body.

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