JP2007252642A - Suction port body for vacuum cleaner and vacuum cleaner - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a floor brush which can efficiently scrape off the dust sticking to a rotary brush. <P>SOLUTION: The rotary brush 12 for cleaning a floor surface in contact with it is rotatably installed on a case body 11 facing a suction port 41 and a motor 14 is provided to rotate the rotary brush 12. A rotor 13 rotatable driven in contact with the rotary brush 12 being kept from contacting the floor surface is provided in the case body 11. The rotor 13 kept from contacting the floor surface is rotated driven in contact with the rotary brush 12 to make the rotary brush 12 and the rotor 13 contact each other efficiently, thereby enabling the efficient scrapping off of the dust sticking to the rotary brush 12. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a suction port body of an electric vacuum cleaner having a rotary cleaning body that is rotatably provided on a main body case and grounds the surface to be cleaned to clean the surface to be cleaned, and an electric vacuum cleaner including the same.

2. Description of the Related Art Conventionally, a floor brush, which is this type of suction port used in a vacuum cleaner, includes a horizontally long main body case and a connecting pipe projecting from a rear portion of the main body case and connected to an extension pipe. A horizontally long suction port is formed in the lower portion of the main body case. The suction opening is provided with a rotating brush as a rotary cleaning body on the front side and the rear side, respectively. These rotating brushes have a substantially cylindrical brush base whose both ends are pivotally supported by the main body case, and cleaning members such as brush bristles protruding from the outer peripheral surface of the brush base. The front end of the cleaning member is in contact with the floor surface as the surface to be cleaned, and the rotating tracks are provided so as to overlap each other. And this floor brush rotates the rotating brush so that the dust on the floor surface is scraped from the floor surface and sucked from the suction port, and the tips of the cleaning members collide with each other. It is configured so that dust, such as thread dust, entangled with the tip or the like is dropped together (see, for example, Patent Document 1).
JP 2002-143049 (page 6-8, FIG. 3)

  However, in the suction mouth of the electric vacuum cleaner described above, since the cleaning member of each rotary brush is brought into contact with the floor surface, sufficient rotational force cannot be obtained, and both rotary brushes having substantially the same shape are provided by a common motor. Since the rotating members are rotated, the cleaning members of the rotating brush do not collide with each other efficiently, and it is difficult to sufficiently scrape dust entangled with each other.

  This invention is made in view of such a point, and provides the suction inlet body of the vacuum cleaner which can scrape off the dust adhering to a 1st rotation cleaning body efficiently, and a vacuum cleaner provided with the same. For the purpose.

  The present invention includes a first rotating cleaning body that faces a suction port and is rotatably provided in a main body case, contacts a surface to be cleaned and cleans the surface to be cleaned, driving means for rotating the first rotating cleaning body, and a main body The case is provided with a second rotary cleaning body that contacts the first rotary cleaning body so as to be driven to rotate and that cleans the first rotary cleaning body without being grounded to the surface to be cleaned.

  According to the present invention, the second rotating cleaning body that does not come into contact with the surface to be cleaned contacts the first rotating cleaning body and is driven to rotate, so that the first rotating cleaning body and the second rotating cleaning body efficiently contact each other. The dust attached to the first rotary cleaning body can be efficiently scraped off.

  Hereinafter, the structure of the suction inlet body of the vacuum cleaner of one embodiment of this invention is demonstrated with reference to FIG.

  In FIG. 3, reference numeral 1 denotes a vacuum cleaner main body. The vacuum cleaner main body 1 collects dust sucked together with intake air generated by driving an electric blower 2 accommodated in a dust collection pack (not shown) that can be attached and detached. Dust.

  The vacuum cleaner main body 1 has a main body suction port 3 for sucking air from the outside. An elongated substantially cylindrical hose body 4 that is flexible and can be bent is connected to the main body suction port 3. At the tip of the hose body 4, a hand operation unit 5 that can select an operation mode of the electric blower 2 is provided. The hand operation unit 5 is provided with a plurality of setting buttons 6 for setting the electric blower 2 and the like in the cleaner body 1 to a plurality of operation modes, and a gripping unit 7 that an operator grips when cleaning. Projecting toward the base end side.

  Further, an elongated and substantially cylindrical extension tube 8 that can be expanded and contracted is detachably connected to the distal end of the hand operation unit 5. Further, the extension brush 8 is detachably attachable to the tip of the extension pipe 8, for example, a floor brush 9 which is placed on a carpet on the floor of the room and sucks dust on the carpet as a suction port of a vacuum cleaner. It is connected in communication.

  As shown in FIGS. 1 and 2, the floor brush 9 includes a horizontally long case body 11 as a main body case, a rotary brush 12 as a first rotary cleaning body disposed in the case body 11, and a first brush. Rotating body 13 which is a rotating member as a two-rotating cleaning body, motor 14 as driving means for rotating and driving these rotating brush 12 and rotating body 13, and control means (not shown) for controlling the driving of motor 14 are provided. ing.

  The case body 11 includes a lower case 21 whose upper side is open, an upper case 22 provided on the upper side of the lower case 21, a bumper 24 sandwiched between the cases 21 and 22, and a traveling wheel that allows the case body 11 to travel. 25 and a communication pipe 26 detachably connected to the distal end side of the extension pipe 8. In the case body 11, a rotary cleaning body chamber 31 in which the rotary brush 12 is accommodated, shaft support chambers 32 and 33 located on both sides of the rotary cleaning body chamber 31, and a rear part of the rotary cleaning body chamber 31 are provided. A motor chamber 34 which is located on the side and accommodates the motor 14 and a control means chamber which is located on the other side of the rear portion of the rotary cleaning body chamber 31 and accommodates a control means for controlling the drive of the motor 14, that is, the rotation direction. 35 and so on are respectively formed.

  In the lower case 21, a horizontally long suction port 41 communicating with the rotary cleaning body chamber 31 is formed in the lower portion facing the floor surface as a surface to be cleaned. Further, the lower case 21 includes lower partition ribs 43 and 44 positioned between the rotary cleaning body chamber 31 and the pivot support chambers 32 and 33, and between the rotary cleaning body chamber 31 and the chambers 34 and 35, respectively. The lower receiving partition ribs 46 and 47 are provided in a protruding manner. Further, although not shown, the lower case 21 is provided with direction detecting means for detecting the traveling direction of the floor brush 9 forward and backward.

  The suction port 41 is formed in a horizontally long rectangular shape having a longitudinal direction along the width direction with respect to the traveling direction of the case body 11, and is provided at a position displaced to the front side of the traveling direction of the case body 11.

  Further, the lower partition rib 43 extends from the front part to the rear part at a position near one side part in the width direction of the lower case 21, and is positioned at one end of the rotary brush 12 at a position facing the rotary cleaning body chamber 31. An insertion hole 51 through which the portion is inserted is formed, and a rotation shaft insertion hole 54 through which the rotation shaft 14a of the motor 14 is inserted is formed at a position facing the motor chamber 34.

  Similarly, the lower partition rib 44 extends from the front portion to the lower housing partition rib 47 at a position near the other side in the width direction of the lower case 21, and the other end of the rotating brush 12 is An insertion hole 56 to be inserted is formed.

  The lower housing partition rib 46 extends from the lower partition rib 43 to the center side in the width direction of the case body 11, and is curved rearward on the suction side of the communication pipe 26.

  The lower housing partition rib 47 extends from the other side portion of the lower case 21 to the center side in the width direction and is curved rearward, which is the suction side of the communication pipe 26.

  The direction detection means is, for example, a rotary encoder, and is electrically connected to the control means, contacts the floor surface with the floor brush 9 grounded, detects the rotation direction of the floor brush 9, and outputs it to the control means To do.

  The upper case 22 is a cover body attached to the upper part of the lower case 21, and has a lid portion 58 located on the rear side, and an upper case portion 59 connected to the front portion of the lid portion 58. Then, on the lower part of the upper case 22, ribs (not shown) project from the ribs 43, 44, 46, 47 of the lower case 21.

  The lid portion 58 is provided so as to cover the rear side of the rotary cleaning body chamber 31, that is, the rear portion of the shaft support chamber 32, the upper side of the motor chamber 34, and the control means chamber 35.

  The upper case portion 59 covers the upper portion of the rotary cleaning body chamber 31, the front side of the pivot support chamber 32, and the upper portion of the pivot support chamber 33, respectively. Further, the upper case portion 59 is provided with a rotation shaft support portion (not shown) that rotatably supports both end portions of the rotating body 13.

  The bumper 24 is provided for cushioning when the floor brush 9 collides with a wall or the like, and is formed of a flexible member such as rubber.

  The traveling wheels 25 are provided so as to be rotatable in the front-rear direction, and the floor brush 9 can travel in the front-rear direction on the floor surface.

  The communication pipe 26 is rotatably provided at the rear part of the case body 11.

  The rotating brush 12 includes a brush base 81 as an attachment member, a brush member 82 as a cleaning member and a blade member 83 as a cleaning member provided on the outer peripheral surface of the brush base 81, and both end portions of the brush base 81. Receiving plates 84 and 85 which are first rotating bodies serving as first driven bodies fitted to the housing, and are accommodated in the rotary cleaning body chamber 31 facing the suction port 41.

  The brush base 81 is a substantially cylindrical rotating brush body formed in a longitudinal shape on the left and right with, for example, a synthetic resin.

  The brush member 82 is formed, for example, by bundling a plurality of brush bristles formed of synthetic resin or the like, and spiraling from the outer peripheral surface of the brush base 81 along the axial direction of the brush base 81, and It protrudes in a wall shape toward the radial direction of the brush base 81. The brush member 82 is configured such that the tip of the brush member 82 comes into contact with the floor surface with the floor brush 9 grounded, and the dust on the floor surface is scraped by the rotation of the rotating brush 12.

  Further, the blade member 83 is formed of, for example, a soft synthetic resin having elasticity, and is formed so as to increase in thickness toward the tip portion, and extends from the outer peripheral surface of the brush base 81 along the axial direction of the brush base 81. It projects in a spiral and wall shape toward the radial direction of the brush base 81. The blade member 83 is configured such that the tip of the blade member 83 comes into contact with the floor surface while the floor brush 9 is grounded, and the dust is struck by hitting the floor surface by the rotation of the rotary brush 12.

  The receiving plate 84 is rotatably supported in the shaft support chamber 32. Further, a belt 87 as a transmission member is wound around the receiving plate 84 between the rotating shaft 14a of the motor 14 and the rotating brush 12 is rotated by the rotation of the motor 14.

  The receiving plate 85 is rotatably supported in the shaft support chamber 33.

  Further, the rotating body 13 is driven to rotate without contacting the floor surface due to contact with the members 82 and 83 of the rotating brush 12. The rotating body 91 is a rotating member body serving as a mounting member, and this rotation. A cleaning member 92 that is a plurality of protrusions serving as resistance portions provided on the outer peripheral surface of the body base 91 and a receiving plate that is a second rotation part serving as a second follower fitted to both ends of the rotary body base 91 93, 93 and is accommodated in the rotary cleaning body chamber 31 on the upper rear side of the rotary brush 12.

  The rotator base 91 is a substantially cylindrical rotator main body formed in a longitudinal shape on the left and right with, for example, a synthetic resin, and has a diameter smaller than that of the brush pedestal 81.

  The cleaning member 92 is a blade member formed of, for example, an elastic soft synthetic resin or the like, spirally from the outer peripheral surface of the rotating body base 91 along the axial direction of the rotating body base 91, and the rotating body base It protrudes in a wall shape toward the radial direction of 91. The cleaning member 92 intersects, that is, overlaps with the rotation track of the brush member 82 and the blade member 83 whose rotation track is the rotation track of the rotary brush 12 at the front lower portion.

  The receiving plates 93 are separated from the belt 87, and the diameter of each receiving plate 93 is smaller than the diameter of the receiving plates 84 and 85 of the rotary brush 12. Then, by this rotation, the rotating body 13 is configured such that the cleaning member 92 comes into contact with the members 82 and 83 of the rotating brush 12 to remove dust attached to these members 82 and 83.

  Next, the operation of the above embodiment will be described.

  First, the worker sequentially connects the hose body 4, the extension pipe 8, and the floor brush 9 to the main body suction port 3 of the cleaner body 1.

  Further, when the operator pulls out the power cord from the cleaner body 1 and connects it to an outlet (not shown), and then operates the predetermined setting button 6 by holding the holding portion 7, the operation mode set by the setting button 6 is set. Accordingly, the electric blower 2 is driven.

  Then, the operator grips the grip portion 7, causes the floor brush 9 to travel forward and backward on the floor surface, and sucks dust on the floor surface from the suction port 41.

  At this time, the traveling direction of the floor brush 9 is detected by the direction detecting unit of the floor brush 9 and output to the control unit, and the control unit rotates the motor 14 in accordance with the traveling direction of the floor brush 9.

  For example, when the floor brush 9 is advanced, the motor 14 rotates in the forward direction, so that the driving force is transmitted by the belt 87 and the rotary brush 12 rotates in the forward direction. Scrape off with members 82 and 83.

  At this time, the members 82 and 83 of the rotating brush 12 collide with the tip of the cleaning member 92, so that the rotating body 13 is driven and rotated in the reverse direction opposite to the rotating brush 12. The cleaning member 92 knocks off the dust adhering to the tips of 82 and 83.

  On the other hand, when the floor brush 9 is retracted, the motor 14 rotates in the backward direction, so that the driving force is transmitted by the belt 87 and the rotating brush 12 rotates in the backward direction. Scrape off with members 82 and 83.

  At this time, when the members 82 and 83 of the rotating brush 12 collide with the tip of the cleaning member 92, the rotating body 13 rotates in the reverse direction opposite to the rotating brush 12, and when the floor brush 9 advances. Similarly, due to this collision, the cleaning member 92 knocks off dust adhering to the tip portions of the members 82 and 83.

  Then, after passing through the extension pipe 8 and the hose body 4 sequentially from the floor brush 9 to the dust, the dust is guided to the main body suction port 3 of the cleaner body 1 and is collected in the cleaner body 1 (not shown). Collected in a dust pack.

  The air in which the dust is collected is sucked into the electric blower 2 to become exhaust air, and is exhausted from an exhaust port (not shown) of the cleaner body 1 to the outside.

  As described above, according to the above embodiment, each member 82, 83 of the rotating brush 12 collides with the cleaning member 92, so that the rotating body 13 rotates in a driven state without contacting the floor surface. The members 82 and 83 of the brush 12 and the cleaning members 92 of the rotating body 13 efficiently collide, and dust attached to the members 82 and 83 of the rotating brush 12 can be efficiently scraped off.

  That is, in the conventional floor brush in which the rotation trajectory of a pair of rotating brushes that are grounded on the floor and driven by a common driving means are overlapped, the rotating brush is grounded on the floor and the rotating brushes are not sufficiently in contact with each other. Thus, while the torque of these rotating brushes is not sufficient to remove dust adhering to each other's rotating brush, in the present embodiment, the rotating body 13 is not grounded to the floor surface, and By configuring the rotary body 13 to rotate by following the collision with the rotary brush 12 without positively rotating the rotary body 13, the rotary body 13 becomes the rotational resistance of the rotary brush 12, and thus the torque of the rotary body 13 Can be made sufficiently large, and dust adhering to the members 82 and 83 of the rotary brush 12 can be reliably removed.

  Further, the rotating body 13 is rotated by a collision with the rotating brush 12, so that, for example, a comb-like member that scrapes dust adhering to each member of the rotating brush is fixed to the rotating cleaning body chamber. In addition, since the members 82 and 83 do not come into contact with the same position of the cleaning member 92, it is difficult for the dust to be entangled with the rotating body 13 side.

  Furthermore, by using the cleaning member 92 of the rotating body 13 as a blade member, dust such as hair is less likely to get entangled with the rotating body 13.

  The rotary brush 12 rotates forward when the floor brush 9 moves forward and rotates rearward when the floor brush 9 moves backward, so that the members 82 and 83 of the rotary brush 12 come into contact with the floor surface. It is possible to assist the running of the floor brush 9.

  In addition, since the rotation direction of the rotary brush 12 is reversed between when the floor brush 9 moves forward and when the floor brush 9 moves backward, the effect of releasing dust such as dust that is entangled with the brush stand 81 of the floor brush 9 is increased.

  In the above embodiment, the driving means can be any other device such as an air turbine.

  Further, the floor brush 9 that rotates the rotating brush 12 in response to the suction air, that is, the rotating brush 12 itself may be the driving means.

  Furthermore, the cleaning member 92 of the rotating body 13 can be any member other than the blade member.

  And the detailed structure of the floor brush 9 and the cleaner main body 1 is not limited to the said structure.

  Further, the vacuum cleaner is not limited to a canister type vacuum cleaner, but is an upright type in which the floor brush 9 is directly formed on the lower surface of the cleaner body 1. In addition, the cleaner body 1 and the floor brush 9 are integrated. Even a self-propelled electric vacuum cleaner or a handy type can be used correspondingly.

It is a longitudinal cross-sectional view which shows the suction inlet body of the vacuum cleaner of one embodiment of this invention. It is a top view which shows the inside of the suction inlet body of a vacuum cleaner same as the above. It is a perspective view which shows the vacuum cleaner provided with the suction inlet of the vacuum cleaner same as the above.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Vacuum cleaner body 2 Electric blower 9 Floor brush as a suction mouth body of an electric vacuum cleaner
11 Case body as body case
12 Rotating brush as the first rotating cleaning body
13 Rotating body as second rotating cleaning body
14 Motor as drive means
41 Suction port

Claims (2)

A body case with a suction port;
A first rotating cleaning body that faces the suction port and is rotatably provided in the main body case and contacts the surface to be cleaned to clean the surface to be cleaned;
Driving means for rotating the first rotary cleaning body;
The main body case includes a second rotating cleaning body that is provided so as to be driven to rotate in contact with the first rotating cleaning body and that cleans the first rotating cleaning body without contacting the surface to be cleaned. The suction mouth of the vacuum cleaner. A vacuum cleaner body containing an electric blower,
A vacuum cleaner comprising: a suction port body of the vacuum cleaner according to claim 1 connected to a suction side of the electric blower.

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