JP2005066034A - Rotating cleaning body and suction port body of vacuum cleaner - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a rotating cleaning body (a rotating brush) having favorable manufacturability and to provide a suction port body of a vacuum cleaner provided therewith. <P>SOLUTION: A net member 24 of scraping members 21 to be attached to the outer circumferential face of a brush mount 14 is formed of first fibers 24a which are approximately perpendicular to the axial direction of the brush mount 14 and second fibers 24b which are approximately in parallel to the axial direction of the brush mount 14 and cross with the first fibers 24a, into a lattice shape. The first fibers 24a are mutually separated at a predetermined interval so as to arbitrarily change the nerve of the net member 24 of the scraping members 21, change a contact load of the scraping members 21 to the floor surface, and easily respond to a plurality of different contact loads by the common scraping members 21. This constitution can improve the manufacturability and suppress the manufacturing cost by standardization of components. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a rotary cleaning body having a cleaning member protruding from an outer peripheral surface of a shaft-shaped mounting member, and a suction port body of a vacuum cleaner provided with the same.

2. Description of the Related Art Conventionally, a floor brush as a suction port body of this type of vacuum cleaner includes a case body having a suction port opened on a lower surface facing the floor surface as a surface to be cleaned. A rotary brush as a rotary cleaning body is rotatably provided at the suction port of the case body. This rotary brush is provided with a cylindrical brush base as an attachment member. A large number of brush bristles protruding from the outer peripheral surface are spaced apart from each other and planted on the outer peripheral surface of the brush base (see, for example, Patent Document 1).
Japanese Patent Laid-Open No. 2-104322 (page 3-5, FIG. 2)

  In general, there are various methods for rotating the rotating brush depending on the model, such as a method of rotating by a motor provided at one end of the brush base or a method of rotating by a suction air from the suction port.

  For example, in the configuration in which the rotating brush is rotated by the motor, the rotating torque of the rotating brush can be sufficiently secured, so that the brush load can be strengthened to make the contact load relatively large, and the dust can be reliably scraped off the floor surface. desired.

  On the other hand, in the configuration in which the rotating brush is rotated by the suction air, it is not easy to secure the rotating torque of the rotating brush. Therefore, if the brush hair is strengthened and the contact load is increased, the rotating brush may not rotate reliably. For this reason, it is desirable to make the bristles relatively weak.

  That is, the contact load with respect to the floor surface required for the brush hair may differ depending on the model.

  However, in the above-mentioned floor brush, in order to cope with different models, there is a problem that the contact load must be changed by changing the material of the brush hair for each model, and the manufacturability is not good. .

  This invention is made | formed in view of such a point, and it aims at providing the suction inlet body of a rotary cleaning body with favorable productivity, and a vacuum cleaner provided with the same.

  In the present invention, the cleaning member protruding from the outer peripheral surface of the shaft-shaped mounting member includes a plurality of first fibers that are substantially perpendicular to the axial direction of the mounting member and substantially parallel to each other, and the axial direction of the mounting member A grid-like net member having a plurality of second fibers that are substantially parallel to each other and substantially parallel to each other and intersecting the first fibers, and the net members are arranged such that the first fibers are spaced from each other at a predetermined interval. It has been separated. Then, the net member of the cleaning member protruding from the outer peripheral surface of the attachment member is substantially parallel to the axial direction of the attachment member and the plurality of first fibers that are substantially perpendicular to the axial direction and substantially parallel to each other. By crossing a plurality of substantially parallel second fibers and separating the first fibers through a predetermined interval, the contact load of the cleaning member with respect to the cleaned surface of the net member can be easily changed to Since it becomes possible to easily cope with different contact loads, manufacturability is improved.

  According to the present invention, the net member of the cleaning member protruding from the outer peripheral surface of the attachment member is substantially perpendicular to the axial direction and substantially parallel to each other with respect to the axial direction of the plurality of first fibers and the attachment member. A plurality of second fibers that are substantially parallel and substantially parallel to each other are crossed, and the first fibers are separated at a predetermined interval, thereby easily changing the contact load of the cleaning member on the surface to be cleaned of the net member. And since it can respond easily to several different contact loads, manufacturability can be made favorable.

  Hereinafter, the configuration of a vacuum cleaner according to an embodiment of the present invention will be described with reference to FIGS. 1 to 5.

  In FIG. 5, reference numeral 1 denotes a cleaner body, and an electric blower 2 is accommodated in the cleaner body 1. The vacuum cleaner body 1 is a so-called canister-type vacuum cleaner, and captures and collects dust sucked together with intake air generated by driving the electric blower 2.

  Further, a main body inlet 3 for sucking air from the outside is opened at the front center of the cleaner body 1. The main body suction port 3 is connected to a hose body 4 as a slender, substantially cylindrical connecting pipe that can be bent. At the tip of the hose body 4, a hand operation unit 5 capable of selecting an operation mode of the electric blower 2 is provided.

  The hand operating section 5 is provided with a plurality of setting buttons 6 for setting the driving state of the electric blower 2 and the like in the cleaner body 1 to a predetermined state. A gripping portion 7 is projected on the proximal end side. An extensible and elongated cylindrical extension tube 8 is detachably connected to the distal end of the hand operation portion 5 so as to be detachable. Further, a floor brush 9 that is installed on, for example, a carpet on the indoor floor surface and sucks dust on the carpet is detachably connected to the tip of the extension pipe 8. This floor brush 9 is a suction port body of a vacuum cleaner.

  Further, as shown in FIGS. 3 and 4, the floor brush 9 is provided with a convex case body 11 that is horizontally long with respect to the traveling direction that is the front-rear direction, and whose rear center substantially protrudes rearward. Yes. An elongated rectangular suction port 12 is formed in the lower surface of the case body 11 that faces the floor as a surface to be cleaned. The suction port 12 is provided at a position displaced to the front side in the traveling direction of the case body 11, and 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. Yes.

  Further, a rotary brush 13 as an elongated, substantially cylindrical rotary cleaning body is rotatably supported in the traveling direction inside the suction port 12 of the case body 11. The rotating brush 13 is attached to face the floor surface when the suction port 12 of the case body 11 is made to face the floor surface. As shown in FIG. 1 and FIG. 2, the rotating brush 13 includes a brush base 14 that is a shaft-shaped cleaning base as an elongated substantially cylindrical mounting member.

  A plurality of, for example, four engagement recesses 15 are provided on the outer peripheral surface of the brush base 14 as mounting recesses as mounting groove portions having a substantially concave cross section twisted spirally in the circumferential direction along the axial direction. These engaging recesses 15 are formed by twisting the other end by, for example, 180 ° with respect to one end in the circumferential direction of the brush base 14.

  Further, the engagement recesses 15 are provided at equidistant positions at intervals in the circumferential direction of the brush base 14 in a state where the longitudinal direction is along the longitudinal direction of the brush base 14. These engaging recesses 15 are provided with a step between an enlarged portion 16 whose inside is wider in the circumferential direction and a communicating portion 17 that communicates from the enlarged portion 16 to the outer peripheral surface and is narrower than the enlarged portion 16. The cross-sectional shape is formed in a concave shape having a claw shape with a narrow tip. Here, the enlarged portions 16 of the engagement recesses 15 are formed in the shape of a concave arc on the base end side and in a planar shape with the inner edge on the front end side facing the base end side.

  Each of the engagement recesses 15 includes a substantially elongated flat plate-like scraping member 21 as a cleaning member and a proximal end side of a substantially elongated flat plate-like blade member, that is, a scraping member 22 that is a rubber blade. It is attached by being alternately locked along the direction. Therefore, the scraping member 21 and the scraping member 22 are attached to the outer peripheral surface of the brush base 14 in a spirally twisted direction along the axial direction of the brush base 14 in the circumferential direction. That is, the scraping member 21 and the scraping member 22 are provided in a state of being spirally twisted together with the brush base 14 toward the periphery. The scraping member 21 and the scraping member 22 protrude in a wall shape toward the radial direction of the brush base 14 in a state where the base end side is locked to the respective engagement recesses 15 of the brush base 14. .

  Here, the scraping member 21 is provided with an elongated substantially plate-like brush attachment portion 23 as an attachment base end portion having a shape substantially matching the cross-sectional shape of the engagement recess 15 of the brush base 14. The brush mounting portion 23 can be engaged with and disengaged from the engagement recess 15 of the brush base 14. A net member 24 is attached to the surface portion of the brush attachment portion 23 along the longitudinal direction.

  The net member 24 includes a plurality of first fibers 24a and a plurality of second fibers 24b formed of a flexible member such as a synthetic resin.

  The first fibers 24 a are provided substantially perpendicular to the brush attachment portion 23, and the base end portion is integrally formed with the brush attachment portion 23 by injection molding (insert molding). Therefore, these first fibers 24a protrude in the radial direction of the brush base 14 in a state where the scraping member 21 is attached to each engagement recess 15 of the brush base 14, and with respect to the axial direction of the brush base 14. It is almost vertical. The first fibers 24a are spaced apart at substantially equal intervals in parallel with each other at a predetermined interval in the axial direction of the brush base 14 which is the longitudinal direction of the brush mounting portion 23, and are arranged over the entire net member 24. It is installed.

  The second fiber 24b intersects with the first fiber 24a and is provided substantially parallel to the brush attachment portion 23. Therefore, these second fibers 24b are located in a spiral shape with respect to the brush base 14 in a state where the scraping member 21 is attached to each engagement recess 15 of the brush base 14, and the axial direction of the brush base 14 It is substantially parallel to. The second fibers 24b are spaced apart from each other at substantially equal intervals in parallel with each other at an interval substantially equal to the interval between the first fibers 24a in the radial direction of the brush base 14, which is the longitudinal direction of the first fibers 24a. Yes. Therefore, the net member 24 has a square lattice shape. The net member 24 is provided so that the strength and the roughness of the lattice, that is, the pitch, and the like are the same as those used, for example, on a screen door.

  The fibers 24a and 24b are fixed to each other and integrated.

  Further, the second fiber 24b located within a predetermined distance from the distal end side of the first fiber 24a, that is, the distal end portion of the first fiber 24a, is cut as a slit in a portion between the first fibers 24a. Part 25 is formed and cut. These cut portions 25 are cut and formed in a substantially straight line between all the first fibers 24a along the longitudinal direction of the first fibers 24a by, for example, a cutter as a straight cutting means (not shown). Yes. This cutter is formed, for example, with a thickness dimension smaller than the interval between the first fibers 24a. In other words, the interval between the first fibers 24a is formed larger than the thickness dimension of the cutter.

  And by these notch | incision parts 25, while the front end side of the 1st fiber 24a is isolate | separated with respect to the mutually adjacent 1st fiber 24a and becomes independent, the base end side of the 1st fiber 24a Are fixed and integrated by the second fiber 24b. Moreover, the small piece of the 2nd fiber 24b cut | disconnected by the cut | notch part 25 has adhered to the front end side of the 1st fiber 24a. For this reason, in the net member 24, the waist on the distal end side where the cut portions 25 are provided is relatively weak compared to the proximal end side.

  On the other hand, the scraping member 22 is provided with an elastic blade 27 having an elongated flat plate shape and a scraping portion 26 bulging thickly on one side in the longitudinal direction. Further, the scraping portion 26 of the blade 27 is formed so that the protruding amount in the radial direction from the outer peripheral surface of the brush base 14 is smaller than the tip portion of the net member 24. In other words, the tip of the net member 24 protrudes in the radial direction of the brush base 14 from the scraped portion 26 of the blade 27. Further, on the other edge of the blade 27 in the longitudinal direction, an elongated flat plate-like blade mounting portion which is formed of the same material as the blade 27 and has a shape substantially matching the cross-sectional shape of the engagement recess 15 of the brush base 14. 28 is formed. The blade mounting portion 28 can be engaged with and disengaged from the engagement recess 15 of the brush base 14.

  Further, shafts (not shown) project from both end portions of the brush base 14, respectively. The substantially cylindrical receiving plates 41, which are receivers as holding members for holding and fixing both end portions of the brush base 14, are provided on these shafts. Are attached coaxially.

  Further, an annular inner flange 44 for preventing the scraping member 21 and the scraping member 22 from coming off from the engaging recess 15 of the brush base 14 is provided on the peripheral surface portion of the receiving plate 41 facing the brush base 14. It is provided concentrically.

  An annular outer flange 45 is coaxially provided on the peripheral surface portion of the receiving plate 41 with respect to the inner flange 44. On the outer peripheral surface side of the outer flange portion 45, a substantially cylindrical gear portion 47 having gear grooves 46 formed at equal intervals in the circumferential direction on the outer peripheral surface is provided concentrically. A substantially cylindrical bearing 48 is fitted inside the front end side of the gear portion 47. The bearing 48 is fitted to an end portion of the shaft, and fixes the end portion of the shaft to be rotatable. The bearings 48 are respectively engaged with a pair of shaft support recesses 51 provided on both side edges of the floor brush 9 in the traveling direction of the suction port 12 of the case body 11. As a result, the rotating brush 13 is rotatable with respect to the case body 11 of the floor brush 9.

  On the other hand, a motor 61 as a drive means is accommodated in the rear side of one pivotal support recess 51 in the case body 11 of the floor brush 9. A rotating shaft 62 that rotates by driving of the motor 61 protrudes from the tip of the motor 61. A gear 63 having a gear groove (not shown) formed on the outer peripheral surface is concentrically attached to the rotating shaft 62. The gear groove of the gear 63 is formed with the same interval and size as the gear groove 46 of the gear portion 47 of the receiving plate 41. Further, the gear 63 is located on the rear side of one receiving plate 41 of the rotating brush 13 attached in the case body 11 of the floor brush 9, and has a rotation direction that matches the rotation direction of the receiving plate 41. ing.

  A belt body 64 serving as an endless band is wound between the gear 63 and the gear portion 47 of one receiving plate 41 of the rotary brush 13 so as to bridge. On the inner peripheral surface of the belt body 64, a gear groove (not shown) having an interval and a size capable of engaging with each of the gear groove of the gear 63 and the gear groove 46 of the gear portion 47 is formed. Therefore, when the motor 61 is driven, the gear 63 is rotated by the rotation of the rotating shaft 62 of the motor 61, and the belt body 64 is rotated by the rotation of the gear 63, so that one receiving plate 41 of the rotating brush 13 is rotated. The rotating brush 13 is driven to rotate in the circumferential direction.

  Next, a method for manufacturing the scraping member according to the embodiment will be described.

  First, the net member 24, which is formed in a lattice shape by fixing the first fibers 24a and the second fibers 24b in advance, is cut into predetermined length dimensions and width dimensions according to the longitudinal dimensions of the brush mounting portion 23 and the like. Alignment and injection molding (insert molding) together with the brush mounting portion 23 are performed.

  Next, when cutting both ends of the molded product in which the brush mounting portion 23 and the net member 24 are integrally molded, for example, depending on the model of the vacuum cleaner, the tip of the first fiber 24a of the net member 24 A cut portion 25 is simultaneously formed with a cutter or the like in the second fiber 24b located on the side, and the waist strength of the scraping member 21 is adjusted.

  Next, a method for assembling the floor brush according to the embodiment will be described.

  First, the brush mounting portion 23 of the scraping member 21 and the blade mounting portion 28 of the scraping member 22 are inserted into the engaging recesses 15 of the extruded brush base 14 from one end in the axial direction of the brush base 14 to the other end. Are slid into the respective engagement recesses 15 and locked. At this time, the scraping member 21 and the scraping member 22 are attached so as to alternate along the circumferential direction of the brush base 14.

  As a result, the scraping member 21 and the scraping member 22 project spirally toward the radial direction of the brush base 14.

  Further, the receiving plate 41 is fixed to the shaft attached to both ends of the brush base 14 to which the scraping member 21 and the scraping member 22 are attached to the outer peripheral surface, and the end of the shaft protruded outward from each receiving plate 41 A bearing 48 is rotatably fitted and attached to the part to form a rotary brush 13.

  Then, each of the bearings 48 of the rotary brush 13 is fitted into the shaft support recess 51 of the case body 11, and the rotary brush 13 is rotatably supported in the suction port 12 of the case body 11. The floor brush 9 is completed.

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

  First, when cleaning, the floor brush 9 is connected to the cleaner body 1 through the hose body 4 and the extension pipe 8. Then, the gripper 7 of the hose body 4 is held and pushed to run the floor brush 9 back and forth on the floor surface.

  At this time, dust on the floor surface is sucked together with air from the suction port 12 of the floor brush 9 by the suction force generated by driving the electric blower 2 in the cleaner body 1.

  Further, for example, when the floor surface is a carpet or the like, the rotary brush 13 of the floor brush 9 is driven to rotate by turning on a predetermined setting button 6 of the hand operation section 5 of the hose body 4. The rotation of the scraping member 21 causes the leading end side of the first fiber 24a of the net member 24 of the scraping member 21 to enter the carpet, and the second fiber fixed to the leading end side of the first fiber 24a. A small piece of 24b catches the dust entangled with the carpet.

  In addition, when the portion of the scraping member 21 located on the base end side of the cut portion 25 of the net member 24 comes into contact with the carpet, the dust of the lattice of the fibers 24a and 24b of the net member 24 is entangled with the carpet. Hang out and scrape.

  At the same time, due to the rotation of the scraping member 22 of the rotating brush 13, the scraping portion 26 of the blade 27 elastically collides with the carpet, sweeping out dust from the carpet and sweeping it out.

  That is, the dust that has entered the carpet is scraped and removed to the outside by the scraping member 21 and the scraping member 22 and sucked into the suction port 12 of the floor brush 9.

  On the other hand, for example, when the floor surface is between boards, that is, flooring, only the scraping member 21 comes into contact with the flooring and cleans the flooring.

  And after the air sucked together with dust from the suction port 12 of the floor brush 9 is sucked from the floor brush 9 into the main body suction port 3 of the cleaner body 1 through the extension pipe 8 and the hose body 4 in order, Dust sucked into the dust collecting pack housed in the cleaner body 1 and sucked together with air is captured.

  As described above, in the above-described embodiment, the net members 24 of the scraping member 21 attached to the outer peripheral surface of the brush base 14 are the first fibers that are substantially perpendicular to the axial direction of the brush base 14 and substantially parallel to each other. 24a and a grid having second fibers 24b substantially parallel to each other and substantially parallel to the axial direction of the brush base 14 and intersecting the first fibers 24a. The first fibers 24a It was set as the structure isolate | separated through a space | interval.

  More specifically, the fibers 24a and 24b are fixed to each other, and a cut portion 25 is formed in the second fiber 24b located between the leading ends of the first fibers 24a and 24a to form the first fibers 24a. It was set as the structure which isolate | separates the front end side.

  For this reason, the waist strength on the distal end side of the scraping member 21 can be changed to the proximal end side only by changing the distance of the cut portion 25 from the distal end portion of the first fiber 24a, that is, the depth of the cut portion 25. The waist strength of the scraping member 21 can be arbitrarily changed, and the contact load of the scraping member 21 on the floor surface of the net member 24 can be easily changed. It is possible to easily cope with it, and the length of the scraping member 21 can be easily adjusted.

  As a result, compared with the conventional case corresponding to the contact load required for different models by changing the material of the scraping member, etc., a plurality of different models with the rotating brush 13 having the common scraping member 21 Therefore, it is possible to improve the manufacturability and to reduce the manufacturing cost by sharing parts.

  Further, since the rotating brush 13 is rotated by the motor 61, for example, compared with the case where the rotating brush is rotated by blowing the suction air from the suction port, the rotating brush 13 can sufficiently secure the rotating torque, so that the cutting portion The rotating brush 13 can be rotated even if the depth of 25 is reduced to make the waist of the scraping member 21 relatively strong and the contact resistance to the floor surface is increased. As a result, dust on the floor surface can be scraped more reliably by the scraping member 21 having a relatively strong waist, and the cleaning efficiency can be improved.

  Further, by fixing the first fiber 24a and the second fiber 24b, the cut second fiber 24b may be detached from the first fiber 24a when the cut portion 25 is provided. In addition, the net member 24 can be prevented from tearing and being unnecessarily long during cleaning or the like.

  Moreover, since the small pieces of the cut second fibers 24b are fixed to the front end side of the first fibers 24a, when the front end side of the first fibers 24a comes into contact with the floor surface when cleaning the floor surface, Since the small pieces of the second fibers 24b can enter the floor surface and catch them by dust, cleaning performance, that is, dust removal can be further improved.

  And since the brush attachment part 23 and the net member 24 can be shape | molded integrally, it is not necessary to adhere | attach the net member 24 to the brush attachment part 23, for example, and can suppress manufacturing cost more.

  In the above-described embodiment, the cleaning efficiency can be further improved by using a plurality of net members 24 in a stacked manner.

  Further, the floor brush 9 may be configured such that the suction air from the suction port 12 is blown to the scraping member 21 and the scraping member 22 of the rotating brush 13 to rotate the rotating brush 13. In this case, since the rotational torque of the rotating brush 13 is smaller than that of the above-described embodiment in which the rotating brush 13 is rotated by the motor 61, the depth of the cut portion 25 is made deeper than that of the above-described embodiment, By making the waist of the net member 24 weaker than in the above embodiment, the contact load on the floor surface can be reduced, and the rotating brush 13 can be smoothly rotated.

  Furthermore, the structure which provides the notch part 25 only between the 1st fibers 24a of the predetermined position of the net member 24 according to the model etc. of a vacuum cleaner is also possible.

  The engagement recess 15 of the brush base 14 may be at least one or more according to the number of the scraping members 21 attached to the brush base 14.

  Further, the scraping member 21 and the scraping member 22 are attached only to one type of scraping member 21 in each of the engaging recesses 15 of the brush base 14 instead of being alternately attached to the engaging recesses 15 of the brush base 14. Or a plurality of types including the scraping member 21 may be attached.

  Furthermore, a configuration in which the brush base 14 and the scraping member 21 or the scraping member 22 are integrally provided is also possible.

  The vacuum cleaner is not limited to the canister type vacuum cleaner, but is an upright type in which the floor brush 9 is directly formed on the lower surface of the vacuum cleaner body 1. In addition, the vacuum 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 perspective view which shows the rotary cleaning body of one embodiment of this invention. It is a top view which expands and shows the cleaning member of a rotary cleaning body same as the above. It is a longitudinal cross-sectional view which shows the suction inlet body of the vacuum cleaner provided with the rotary cleaning body same as the above. It is a top view which shows 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

9 Floor brush as suction port of vacuum cleaner
11 Case body
13 Rotating brush as rotating cleaning body
14 Brush stand as mounting member
21 Scraping member as a cleaning member
24 Net members
24a First fiber
24b Second fiber
25 notch

Claims (3)

An axial mounting member;
A cleaning member protruding from the outer peripheral surface of the mounting member;
The cleaning member is
A plurality of first fibers substantially perpendicular to the axial direction of the mounting member and substantially parallel to each other, and substantially parallel to the axial direction of the mounting member, substantially parallel to each other, and intersecting the first fibers. A grid-like net member having a plurality of second fibers,
The rotary cleaning body, wherein the net member has the first fibers separated from each other at a predetermined interval. The net member is characterized in that the first fiber and the second fiber are fixed to each other, and a cut portion is formed in the second fiber located on the tip side of the first fiber. The rotary cleaning body according to 1. The case body,
A suction port body for an electric vacuum cleaner comprising: the rotary cleaning body according to claim 1, which is rotatably provided on the case body so as to face a surface to be cleaned.

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