JP2018000754A - Rotary cleaning body and suction port body - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a rotary brush which hardly allows dust to attach to a bristle brush, and a floor brush comprising the rotary brush.SOLUTION: A rotary brush 33 has a shaft part 51 and a bristle brush 52. The shaft part 51 is rotatably held. The bristle brush 52 protrudes in a radial direction with respect to the shaft part 51. A surface of the bristle brush 52 is treated with fluorine resin.SELECTED DRAWING: Figure 1

Description

  Embodiments of the present invention relate to a rotary cleaning body having a plurality of bristle brushes with respect to a shaft portion, and a suction port body including the same.

  2. Description of the Related Art Conventionally, a floor brush as a suction port used in a vacuum cleaner includes a horizontally long case body and a connection pipe that communicates with the case body and is connected to an extension pipe or the like. A horizontally long suction port is formed in the lower surface of the case body that faces the surface to be cleaned, and a rotary brush as a rotary cleaning member is rotatably disposed in the suction port. The rotating brush has a long shaft portion, and a bristle brush as a cleaning body that contacts the surface to be cleaned and sweeps dust is provided between both ends of the shaft portion on the outer periphery of the shaft portion. It is arranged to project like a wall.

  Such bristle brushes are generally formed of synthetic resin such as nylon, and dust such as hair adheres when wiping a flat and hard floor such as flooring or entering a floor such as a carpet. Cheap. Therefore, it is desired to suppress the adhesion of dust to such bristle brushes.

JP 2014-42581 A

  The problem to be solved by the present invention is to provide a rotary cleaning body in which dust does not easily adhere to the bristle brush and a suction port body having the same.

  The rotary cleaning body of the embodiment includes a shaft portion and a bristle brush. The shaft portion is rotatably held. The bristle brush protrudes in the radial direction with respect to the shaft portion. And the surface of this bristle brush is processed with fluororesin.

It is sectional drawing which shows a part of suction inlet provided with the rotary cleaning body of one Embodiment. It is sectional drawing which shows a rotary cleaning body same as the above. It is a top view which shows a suction inlet body same as the above from the downward direction. It is a perspective view which shows the vacuum cleaner provided with the suction inlet same as the above.

  The configuration of one embodiment will be described below with reference to the drawings.

  In FIG. 4, reference numeral 11 denotes a so-called canister-type vacuum cleaner. The vacuum cleaner 11 is a vacuum cleaner body 12 and a tube that is an air passage forming body that is detachably connected to the cleaner body 12. Part 13.

  The vacuum cleaner body 12 is capable of turning and running on the floor as the surface to be cleaned, the electric blower 15, a main body control unit (not shown) that controls the operation of the electric blower 15, and the electric blower 15 and the main body control. The power supply unit such as a cord reel device for supplying power to the unit or the like or a secondary battery is accommodated, and a dust collecting unit 18 communicating with the suction side of the electric blower 15 is provided. A main body suction port 19 that communicates with the dust collection unit 18 and is connected to the proximal end side of the tube unit 13 is formed in the front portion of the cleaner body 12. In the present embodiment, for example, a cyclone separation type dust collection unit is used as the dust collection unit 18, but an arbitrary dust collection unit such as a paper pack or a filter may be used.

  The pipe portion 13 includes a hose body 21, an extension pipe 22 made of, for example, synthetic resin that can be attached to and detached from the hose body 21, and a floor brush 23 as a suction port body that can be attached to and detached from the extension pipe 22. I have. Accordingly, the floor brush 23 communicates with the suction side of the electric blower 15.

  The hose body 21 includes a flexible hose portion 25, a connecting pipe portion 26 provided on the base end side (downstream side) of the hose portion 25 and connected to the main body suction port 19, and a distal end side of the hose portion 25. And a handy operating unit 27 provided on the (upstream side).

  The proximal end side (downstream side) of the extension pipe 22 is detachably connected to the hand operation unit 27. In addition, the hand operating part 27 is formed with a grip part 28 that is gripped by the user so as to protrude to the base end side. The grip part 28 has a setting button for setting the operation mode of the electric blower 15 and the like. 29 is arranged.

  The floor brush 23 shown in FIG. 1 sucks in dust on the floor surface by running on the floor surface. Hereinafter, the front-rear direction and the left-right direction (both sides, width direction) are based on the traveling direction of the floor brush 23, and the up-down direction is the antigravity direction when the floor brush 23 is placed on a flat floor surface. And the direction of gravity, that is, the vertical vertical direction.

  The floor brush 23 includes a case body 31 formed in a longitudinal shape extending in the left-right direction, that is, in a horizontally long shape. Further, the floor brush 23 includes a connecting pipe 32 (FIG. 3) that is detachably connected to the distal end side (upstream side) of the extension pipe 22 (FIG. 4). Further, the floor brush 23 includes a rotary brush 33 as a rotary cleaning body that is rotatably held by the case body 31. Further, the floor brush 23 includes a motor 35 as a driving means (driving unit) that rotationally drives the rotating brush 33. Further, the floor brush 23 includes a control unit (not shown) that controls driving of the motor 35. Further, the floor brush 23 includes wheels 38 for improving the traveling performance on the floor surface. The floor brush 23 includes a fixed brush 39 for wiping the floor surface.

  The case body 31 is divided into a plurality of case bodies formed of, for example, a synthetic resin. A suction chamber 41 in which the rotating brush 33 is accommodated is provided in the front portion of the case body 31. The suction chamber 41 communicates with the upstream side of the connection pipe 32, and the negative pressure of the electric blower 15 (FIG. 4) acts. The suction chamber 41 is provided in a longitudinal shape along the left-right direction. Further, the suction chamber 41 has a front portion, a side portion, a rear portion, and an upper portion that are partitioned by a case body 31, and a lower portion that serves as a suction opening 42 that faces the floor surface. That is, the case body 31 includes a suction port 42. In the present embodiment, the front portion of the suction chamber 41 is partitioned by a front cover 45 that forms a part of the case body 31, and the rear portion forms a part of the case body 31 from the lower part that faces the floor surface of the case body 31. It is partitioned by a rear wall 46 that rises upward.

  The front cover 45 covers the front side of the suction port 42. The front cover 45 is formed in a plate shape (flap shape) having a longitudinal direction along the left-right direction. The front cover 45 has an upper portion 45a pivotally supported and a lower portion 45b having a free end shape. That is, the front cover 45 is provided on the case body 31 so as to be rotatable in the front-rear direction. Further, the front cover 45 is arranged so that the lower part 45b protrudes forward with respect to the upper part 45a in a normal state (a state where no load is applied). Further, the front cover 45 is located at the foremost part of the case body 31. For this reason, the front cover 45 has the lower part 45b facing rearward, that is, inward of the suction chamber 41 when the front part of the floor brush 23 is pressed against an obstacle such as a wall surface, in other words, the rotating brush. It is rotatable (movable) so as to approach the 33 side (imaginary line L). Therefore, the front cover 45 has a function of improving the degree of vacuum of the suction chamber 41 (suction port 42) by rotating backward by contact with an obstacle. The front cover 45 is urged in a direction protruding forward by an urging means (not shown), that is, in a direction away from the rotary brush 33. Therefore, even when the front cover 45 is rotated backward by being pressed against the obstacle, the front cover 45 returns to the original position when it is separated from the obstacle. In the present embodiment, the front cover 45 is rotated by contact with the obstacle and moved backward. However, the front cover 45 is formed by, for example, a soft elastic member and deformed by contact with the obstacle. Then, it may move backward.

  The rear wall portion 46 is provided continuously in the longitudinal direction in the left-right direction. The rear wall portion 46 is provided with a contact portion 46a in contact with the rotary brush 33 on the lower end side. Further, as shown in FIG. 3, a communication port 46 b that connects the suction chamber 41 (suction port 42) and the upstream side of the connection pipe 32 is opened at the center of the rear wall portion 46.

  The connection pipe 32 is connected to the rear part of the case body 31. The connection pipe 32 may be rotatable with respect to the case body 31.

  The rotating brush 33 includes a shaft portion 51 that is rotatably supported by the case body 31 and a bristle brush 52 provided on the shaft portion 51. The rotating brush 33 is disposed along the suction chamber 41 (suction port 42) and is exposed at the lower portion of the case body 31.

  The shaft portion 51 shown in FIG. 2 is provided with bearing portions (not shown) at both ends, and these bearing portions are held by the case body 31 (FIG. 1) so that they can rotate along the front-rear direction. The shaft 51 is made of a light metal such as aluminum or a synthetic resin. The shaft portion 51 is provided with an attachment portion 55 for attaching the bristle brush 52. The attachment portion 55 is recessed on the outer peripheral surface of the shaft portion 51. In the present embodiment, the attachment portion 55 is provided by being spirally twisted between both ends of the shaft portion 51. Further, in this embodiment, a plurality of one mounting portion 57 and a plurality of other mounting portions 58 are set in the mounting portion 55.

  One attachment portion 57 and the other attachment portion 58 are alternately provided in the circumferential direction of the shaft portion 51. One mounting portion 57 is located on the radially outer side with respect to the central axis of the shaft portion 51, and the other mounting portion 58 is located on the radially inner side with respect to the central axis of the shaft portion 51. In other words, one attachment portion 57 is far from the central axis of the shaft portion 51, and the other attachment portions 58 are short from the central axis of the shaft portion 51. That is, one attachment portion 57 is provided at a shallow position with respect to the outer periphery of the shaft portion 51, and the other attachment portion 58 is provided at a position deep with respect to the outer periphery.

  The bristle brush 52 is a cleaning member that wipes off dust on the floor surface or scrapes dust that has entered the floor surface. The bristle brush 52 is formed by arranging bristles formed in a thin line shape with a synthetic resin (for example, nylon) in a bundle shape and arranged in a longitudinal shape (band shape). The bristle brush 52 has a wall shape continuous in the longitudinal direction of the shaft portion 51 in a state where the bristle brush 52 is attached to the attachment portion 55 (one attachment portion 57 and another attachment portion 58). That is, in the present embodiment, the bristle brush 52 is disposed by being spirally twisted between both ends of the shaft portion 51 (FIG. 3). The surface of the bristle brush 52 is subjected to fluororesin processing. In the present embodiment, the bristle brush 52 is subjected to fluororesin processing on the entire surface from the base end portion 52a to the tip end portion 52b. Further, the bristle brushes 52 are set to such a length that the front end part 52b contacts the contact part 46a and the front cover 45 moved rearward when the rotary brush 33 rotates.

  Further, the motor 35 shown in FIG. 1 transmits a rotational force to the rotating brush 33 via a timing belt (not shown) or the like, and drives the rotating brush 33 to rotate. The power of the motor 35 is transmitted from, for example, the power supply unit of the cleaner body 12 via the hose body 21 and the extension pipe 22 (FIG. 4). The rotation of the motor 35 can be switched on and off by the user, for example, by operating the setting button 29 (FIG. 4).

  The control unit controls on / off of the rotational drive of the motor 35 by the operation of the setting button 29 (FIG. 4).

  A plurality of wheels 38 shown in FIGS. 1 and 3 are rotatably disposed below the case body 31. These wheels 38 have a rotation axis along the left-right direction, and are provided so as to rotate along the front-rear direction. The lower portions of the wheels 38 protrude downward from the lower portion of the case body 31, respectively.

  The fixed brush 39 is a non-movable cleaning member that wipes off dust by sliding the tip side in contact with the floor surface by the back and forth movement of the floor brush 23. The fixed brush 39 is, for example, like the bristle brush 52, which is formed by bundling bristles formed in a thin line shape with a synthetic resin (for example, nylon) or the like and arranged in a longitudinal shape (band shape). The fixed brush 39 is disposed at the lower part of the case body 31. In the present embodiment, the fixed brush 39 is disposed at a plurality of locations below the case body 31. Specifically, the fixed brush 39 is disposed at both the left and right positions at the rear of the suction port 42 and at the substantially central position in the left and right direction behind them, and is positioned longitudinally along the left and right direction. ing. The distal end side of the fixed brush 39 protrudes downward from the lower part of the case body 31. In the present embodiment, the front end side of the fixed brush 39 is located above the lower end of the wheel 38.

  Next, the operation of the above embodiment will be described with reference to FIGS.

  When cleaning, first, the user connects the hose body 21 to the main body suction port 19 of the vacuum cleaner body 12 through the connecting pipe portion 26, and the hand operating portion 27 on the tip side of the hose body 21 is connected. The extension pipe 22 and the floor brush 23 are sequentially connected to each other. Therefore, the suction chamber 41 (suction port 42) of the floor brush 23 communicates with the suction side of the electric blower 15.

  Next, the floor brush 23 is placed on the floor surface, and as a state where power can be supplied from the power supply unit to the main body control unit and the electric blower 15, when the user holding the grip unit 28 operates the predetermined setting button 29, The main body control unit controls the input of the electric blower 15 according to the operation mode set by the setting button 29, and the electric blower 15 is driven.

  Further, the user causes the floor brush 23 to run back and forth on the floor surface, and thereby sucks dust together with air from the suction port 42 on the front end side of the floor brush 23 by the action of negative pressure generated by driving the electric blower 15. . At this time, the fixed brush 39 wipes off dust on the floor surface by moving back and forth while in contact with the floor surface.

  Then, the sucked air becomes suction air, and the dust is carried from the floor brush 23 through the extension pipe 22 and the hose body 21 to the dust collecting portion 18 from the main body suction port 19, and the dust collecting portion 18 To collect.

  Thereafter, the suction air from which the dust has been removed is sucked into the electric blower 15, passes through the electric blower 15 and becomes exhaust air, and the vacuum cleaner main body from an exhaust port (not shown) provided at the rear of the vacuum cleaner main body 12 or the like. Exhausted to 12 outside.

  Further, the user appropriately rotates the rotating brush 33 according to the type of the floor surface. At this time, when the user operates a predetermined setting button 29, in response to the operation of the setting button 29, the motor 35 that is fed from the cleaner body 12 side via the wiring is driven by the control unit, and this motor 35 Is transmitted through the timing belt, and the rotating brush 33 is rotated at a high speed. Therefore, the bristle brush 52 of the rotating brush 33 assists in cleaning such as scraping out dust on the floor surface and polishing the floor surface.

  Specifically, as shown in FIG. 1, the floor brush 23 does not sink into a relatively hard flat floor surface F1 such as flooring, and the tip portions 52b of the bristle brushes 52 are connected to the floor surface F1. The sliding surface is wiped off the dust adhering to the floor surface F1, and the floor surface F1 is polished.

  Further, for a soft floor surface F2 such as a carpet, when the floor brush 23 sinks, the positions of the bristle brush 52 near the front end 52b and the base end 52a deeply enter the floor F2, and the floor F2 Dust that has entered the back of the can be scraped firmly.

  At this time, in this embodiment, since the bristle brush 52 protruding in the radial direction from the shaft part 51 of the rotating brush 33 is processed with fluororesin, friction on the surface of the bristle brush 52 is reduced, and dust adheres to the bristle brush 52. It becomes difficult to remove dust attached or attached easily. Therefore, the rotary brush 33 can be maintained over a long period of time without complicated maintenance. In addition, since the bristle brush 52 has less friction with the floor surface, it becomes less painful (hard to wear) even if it slides on the floor surface, so that the diameter of each bristle brush 52 can be reduced. , Floor dust such as flooring can be taken softly and reliably.

  And since it can make it difficult to adhere dust to the bristle brush 52 in this way, as the color design of the bristle brush 52, it is possible to use a bright color in which dirt has been conspicuous due to the adhesion of dust, and the appearance can be improved.

  Furthermore, since the bristle brush 52 can be made water-repellent by fluororesin processing, for example, when the rotary brush 33 is maintained and washed with water to remove dust, the bristle brush 52 can be quickly removed. It becomes dry and ready to use.

  By providing the rotating brush 33 on the case body 31, the floor brush 23 that is clean and easy to use can be provided.

  Further, when the tip 52b of the bristle brush 52 comes into contact with the contact part 46a of the case body 31, the bristle brush 52 is struck against the contact part 46a by the rotation of the rotary brush 33, and dust can be removed by the impact.

  Similarly, the front end portion 52b of the bristle brush 52 comes into contact with the front cover 45 by the rearward movement (rotation) of the front cover 45 of the case body 31, so that the bristle brush is rotated by the rotation of the rotary brush 33. 52 is hit against the front cover 45, and dust can be removed by the impact.

  In the above-described embodiment, the fluororesin processing of the bristle brush 52 may be performed on at least a part of, for example, only the base end part 52a or only the front end part 52b.

  Further, the vacuum cleaner 11 is not limited to the canister type, for example, a so-called upright type in which the connecting pipe 32 of the floor brush 23 is connected to the lower portion of the vacuum cleaner body 12 that is vertically long can be used. Can be used.

  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.

23 Floor brush as inlet
31 Case body
33 Rotating brush as rotating cleaning body
42 Suction port
46a Contact part
51 Shaft
52 bristle brush

Claims (3)

A shaft portion that is rotatably held;
A bristle brush projecting in a radial direction with respect to the shaft portion;
The bristle brush has a surface cleaned with a fluororesin. A case body with a suction port;
A suction port body comprising: the rotary cleaning body according to claim 1, which is positioned at the suction port of the case body and has a shaft portion rotatably held by the case body. The suction port body according to claim 2, further comprising a contact portion that is provided on the case body and contacts at least one of the bristle brushes.

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