JP2004351147A - Rotary cleaner, suction opening body of vacuum cleaner and manufacturing method for rotary cleaner - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To improve productivity and to reduce a twisting load. <P>SOLUTION: In the rotary cleaner, an engaging recess 15 is axially provided on the outer peripheral surface, and a flexible brush stand 14 is spirally formed in the peripheral direction beforehand. In the rotary cleaner, the base end sides of a brush member 21 softer than the brush stand 14 and of a scraping member 22 are locked in the engaging recess 15, and the brush member 21 and the scraping member 22 are mounted to be protruded on the upper peripheral surface of the brush stand 14. Thus, the base end sides of the brush member 21 and the scraping member 22 can be easily locked while returning the engaging recess 15 to be linear along with the axial direction of the brush stand 14, thereby improving productivity. Further, the restoration force in the peripheral direction is not added to the brush stand 14 in the state of assembling a rotary brush 13, thereby reducing the twisting load. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a rotary cleaning body having a mounting member provided with a mounting recess formed in a spiral shape in advance in the circumferential direction on the outer peripheral surface along the axial direction, a suction opening body of a vacuum cleaner having the mounting member, and a rotation. The present invention relates to a method for manufacturing a cleaning body.
[0002]
[Prior art]
Conventionally, a rotary brush as a rotary cleaning member attached to a suction port body of a vacuum cleaner of this type is, for example, an aluminum member or the like twisted and extruded and formed as a mounting member formed in a state of being spirally twisted in advance. It has a cylindrical brush stand. On the outer peripheral surface of the brush stand, there are provided a plurality of concave engaging portions along the axial direction of the brush stand. That is, these engagement recesses are provided spirally in the circumferential direction of the brush stand. A base end of a brush member or a scraping member as a cleaning member is locked and protrudes from these engagement concave portions. These brush members, or scraping members, are formed in an elongated rectangular shape having a length dimension substantially equal to the axial dimension of the brush stand, with the base end side from one end side of the brush stand to the other end side, By being slid and mounted in the engagement recess, it is locked in the engagement recess (for example, see Patent Document 1).
[0003]
[Patent Document 1]
JP-A-10-33428 (page 3, FIG. 2)
[0004]
[Problems to be solved by the invention]
However, in the above-described rotary cleaning body, since the brush base is formed by previously spirally twisting an aluminum material or the like, an elongated rectangular brush member or a scraping member is formed in the spirally twisted engagement recess. There is a problem that it is not easy to slide and attach the base end side, and the manufacturability is not good.
[0005]
In this regard, for example, the brush base is formed linearly with a flexible member, and after the base end of the brush member or the scraping member is locked in the linear engagement recess, the brush base is moved to the brush member. Alternatively, a configuration in which a spiral is formed by twisting in the circumferential direction together with the scraping member is conceivable.
[0006]
However, in this configuration, a torsional load, that is, stress may be applied to the brush base by a restoring force acting to return the brush base to a linear shape after being spirally twisted.
[0007]
The present invention has been made in view of the above points, and provides a rotary cleaning body capable of improving manufacturability and reducing a torsional load, a suction port body of a vacuum cleaner having the same, and a method of manufacturing a rotary cleaning body. The purpose is to do.
[0008]
[Means for Solving the Problems]
The present invention provides a mounting member having flexibility, a mounting recess formed in a spiral shape in the circumferential direction in advance on the outer peripheral surface along the axial direction, and a base end side locked by the mounting recess. A cleaning member is provided which protrudes from the outer peripheral surface of the mounting member and is softer than the mounting member. By forming the flexible mounting member in a twisted state in advance, the base end side of the cleaning member can be easily inserted into the mounting concave portion in a state where the mounting concave portion is linearly returned along the axial direction of the mounting member. , The productivity is improved, and a restoring force in the circumferential direction is not applied to the mounting member in an assembled state, so that a torsional load is reduced.
[0009]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, a configuration of a vacuum cleaner according to an embodiment of the present invention will be described with reference to the drawings.
[0010]
In FIG. 8, reference numeral 1 denotes a cleaner main body, in which an electric blower 2 is housed. Further, the cleaner body 1 captures and collects dust sucked in with the intake air generated by driving the electric blower 2.
[0011]
Further, a main body suction port 3 for sucking air from the outside is opened at substantially the center of the front side of the cleaner main body 1. A hose body 4 as a bendable and elongated cylindrical connection pipe is connected to the main body suction port 3. At the tip of the hose body 4, there is provided a hand operation unit 5 capable of selecting an operation mode of the electric blower 2 and the like.
[0012]
The hand operation unit 5 is provided with a plurality of setting buttons 6 for setting a driving state of the electric blower 2 and the like in the cleaner main body 1 to a predetermined state, and a worker holds the cleaning button when cleaning. A gripping portion 7 is provided protruding from the base end side. Further, an elongate and substantially cylindrical elongated tube 8 which can be extended and contracted is detachably connected to the distal end of the hand operation unit 5. Further, a floor brush 9 which is installed on, for example, a carpet on the floor in a room and sucks dust on the carpet is detachably connected to the tip of the extension tube 8 in a detachable manner. The floor brush 9 is a suction port of the vacuum cleaner.
[0013]
As shown in FIGS. 6 and 7, the floor brush 9 includes a convex case body 11 that is horizontally long in the traveling direction that is the front-rear direction, and that has a substantially central rear portion protruding rearward. I have. An elongated rectangular suction port 12 is formed on the lower surface of the case body 11 facing the floor as a surface to be cleaned. The suction port 12 is provided at a position deviated 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. I have.
[0014]
Further, inside the suction port 12 of the case body 11, a rotary brush 13 as a slender, substantially cylindrical rotary cleaning body is rotatably supported in the running direction. The rotating brush 13 is attached so as to face the floor when the suction port 12 of the case body 11 faces the floor. As shown in FIGS. 1 to 5, the rotating brush 13 includes a brush table 14 as a cleaning table as an elongated substantially cylindrical mounting member. The brush base 14 is formed by twisting and extruding a member made of a synthetic resin having flexibility, for example, rubber, polyethylene (Polyethylene), or an elastomer, in a state of being spirally twisted in the circumferential direction in advance. Have been.
[0015]
For this reason, a plurality of, for example, four engaging recesses 15 are provided on the outer peripheral surface of the brush stand 14 as mounting recesses serving as mounting recesses having a substantially concave cross section which are spirally twisted in the circumferential direction along the axial direction. The engaging recesses 15 are formed such that the other ends thereof are twisted, for example, by 180 ° with respect to one end in the circumferential direction of the brush stand 14.
[0016]
The engaging recesses 15 are provided at equal intervals at intervals in the circumferential direction of the brush stand 14 with the longitudinal direction along the longitudinal direction of the brush stand 14. These engaging recesses 15 are provided with a step by an enlarged portion 16 whose inside becomes wider in the circumferential direction and a communicating portion 17 which communicates with the outer peripheral surface from the enlarged portion 16 and is narrower than the enlarged portion 16. Its cross-sectional shape is formed in a concave shape having a narrow claw shape at the tip. Here, the enlarged portion 16 of the engagement concave portion 15 has a base end side formed in a concave arc shape in cross section, and an inner edge on the front end side is formed in a flat shape facing the base end side.
[0017]
Each of the engagement recesses 15 has a substantially elongated flat plate-shaped brush member 21 as a polishing member as a cleaning member, and a substantially elongated flat plate-shaped blade member as a cleaning member, that is, a scraping member as a rubber blade. The base end side of 22 is alternately locked and attached along the circumferential direction. Therefore, the brush member 21 and the scraping member 22 are attached to the outer peripheral surface of the brush stand 14 in a state of being spirally twisted in the circumferential direction along the axial direction of the brush stand 14. In other words, the brush member 21 and the scraping member 22 are provided in a state where the brush member 21 and the brush base 14 are spirally twisted toward the circumference. The brush member 21 and the scraping member 22 protrude in a wall shape toward the radial direction of the brush stand 14 in a state where the base end side is locked in each engagement recess 15 of the brush stand 14.
[0018]
Here, the brush member 21 includes an elongated substantially plate-shaped brush mounting portion 23 having a shape substantially matching the cross-sectional shape of the engagement recess 15 of the brush stand 14. The brush mounting portion 23 can be disengaged from the engaging recess 15 of the brush stand 14. On the surface of the brush mounting portion 23, brush bristles 24 are planted in a wall shape along the longitudinal direction. The brush member 21 is formed such that the brush mounting portion 23 and the brush bristles 24 are made of a softer material than the synthetic resin forming the brush stand 14 and have a smaller restoring force than the brush stand 14. . In other words, the brush stand 14 is formed with a greater restoring force than the brush member 21.
[0019]
On the other hand, the scraping member 22 is provided with a blade 27 having an elongated flat plate-like shape and provided with a scraping portion 26 bulging thick on both sides on one side in the longitudinal direction in an uneven shape in cross section. On the other edge in the longitudinal direction of the blade 27, an elongated substantially flat plate-shaped blade mounting portion 28 made of the same material as the blade 27 and having a shape substantially matching the cross-sectional shape of the engagement recess 15 of the brush stand 14 is integrally formed. Is formed. The blade mounting portion 28 can be engaged and disengaged from the engaging recess 15 of the brush stand 14. The scraping member 22 is formed of a softer member than the synthetic resin forming the brush stand 14 and has a smaller restoring force than the brush stand 14. In other words, the brush stand 14 is formed with a greater restoring force than the scraping member 22.
[0020]
Further, between each of the engaging recesses 15 of the brush stand 14, a locking recess 29 is formed as a fitting groove having a substantially concave cross section along the axial direction which is the longitudinal direction of the brush stand 14. . These locking recesses 29 are formed in a tapered shape that gradually expands from the base end side toward the front end side. Further, a shaft insertion hole 31 as a through hole having a circular cross section is provided concentrically on the brush stand 14. The shaft insertion hole 31 penetrates between both ends of the brush stand 14 in the axial direction along the central axis of the brush stand 14. In addition, a shaft 32 as a hollow pipe-shaped shaft formed of a metal such as steel or stainless steel (SUS) is inserted into the shaft insertion hole 31 in the brush stand 14. The shaft 32 is formed in a linear shape by a member harder than the brush base 14. The brush 32 is provided with both ends of the shaft 32 protruding from both ends of the brush base 14. It is inserted through the shaft insertion hole 31 of the table 14. As a result, the brush base 14 is corrected by the shaft 32 for distortion or the like during twist extrusion.
[0021]
Further, pin insertion holes 33 penetrating in the radial direction of the shaft 32 are formed at both ends of the shaft 32. These pin insertion holes 33 have axial directions parallel to each other. These pin insertion holes 33 are provided at positions protruding from both ends of the brush base 14 when the shaft 32 is inserted into the shaft insertion hole 31 of the brush base 14. Further, an engagement groove 34 having a concave cross section along the circumferential direction of the shaft 32 is formed on both ends of the shaft 32 with respect to each of the pin insertion holes 33.
[0022]
Further, substantially cylindrical receiving plates 41 as receiving members as holding members for holding and fixing both ends of the brush base 14 together with both ends of the shaft 32 are coaxially attached to both ends of the brush base 14, respectively. I have. These receiving plates 41 are fitted and attached to both ends of the shaft 32 inserted into the shaft insertion hole 31 of the brush stand 14.
[0023]
An insertion hole 42 through which the end of the shaft 32 is inserted is provided at the center of these receiving plates 41. A metal bearing (not shown) for rotating the rotating brush 13 is mounted in the receiving plate 41. Further, a plurality of, for example, four ribs 43 as fitting projections are provided at substantially equal intervals on the opening edge of the distal end, which is one end of the insertion hole 42. These ribs 43 are fitted into the respective locking recesses 29 of the brush base 14 to hold and fix the brush base 14 to the shaft 32. In other words, these ribs 43 are hooked and fixed to the respective locking recesses 29 of the brush stand 14.
[0024]
The ribs 43 protrude along the axial direction which is the opening direction of the insertion hole 42 of the receiving plate 41, and have a cross-sectional shape that matches the locking recess 29 of the brush stand 14. Furthermore, when the end of the brush stand 14 is fitted to the tip of the receiving plate 41, the ribs 43 are fitted in the locking recesses 29 of the brush stand 14 along the axial direction. In addition, the ribs 43 regulate the displacement of the brush stand 14 in the rotation direction, which is the circumferential direction.
[0025]
Further, an annular inner flange 44 projecting along the circumferential direction of the insertion hole 42 of the receiving plate 41 is provided concentrically on the peripheral surface of the receiving plate 41 which is the base end of the rib 43. I have. The inner flange portion 44 engages each rib 43 by moving it along the axial direction into each of the locking recesses 29 at one end of the brush base 14 and fitting the one end of the brush base 14 to the receiving plate 41. At this time, one end surface of the brush stand 14 comes into contact. Further, the inner flange portion 44 has an outer diameter slightly larger than the maximum outer diameter of the brush stand 14, and prevents the brush member 21 from coming off from the engagement recess 15 of the brush stand 14.
[0026]
An annular outer flange 45 protruding along the circumferential direction of the insertion hole 42 of the receiving plate 41 is provided concentrically on the peripheral surface of the receiving plate 41 at the distal end side of the inner flange 44. ing. On the outer peripheral surface side of the outer flange portion 45, a substantially cylindrical gear portion 47 in which gear grooves 46 are 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 the end of the shaft 32 to fix the end of the shaft 32 rotatably. The gear portion 47 of the receiving plate 41 covers the outer peripheral surface of the bearing 48 to prevent dust and the like from entering the bearing 48. Further, an engagement surface portion 49 having a substantially rectangular shape in a side view is formed on the outer peripheral surface on the distal end side of the bearing 48.
[0027]
Here, a pair of shaft support recesses 51 are formed on each side edge of the floor brush 9 in the running direction of the suction port 12 of the case body 11. Each of the shaft support recesses 51 is engaged with an engagement surface portion 49 of a bearing 48 which is fitted in the gear portion 47 of the receiving plate 41 and rotatably fixes both ends of the shaft 32. As a result, these bearings 48 rotatably support and fix the shaft 32 between the pair of shaft support recesses 51.
[0028]
Further, a pin insertion hole 53 is formed in the peripheral surface of the receiving plate 41 between the inner flange 44 and the outer flange 45. This pin insertion hole 53 penetrates along the radial direction of each receiving plate 41. The pin insertion holes 53 communicate with the pin insertion holes 33 of the shaft 32 in a state where the shaft 32 is inserted through the insertion holes 42 of the receiving plate 41. In a state where these pin insertion holes 53 are aligned and communicated with the pin insertion holes 33 of the shaft 32, the elongated cylindrical pins 54 are inserted into these pin insertion holes 33 and 53, and the receiving plate 41 is The shaft 32 is connected and fixed to each of the axial direction and the circumferential direction.
[0029]
On the other hand, a motor 61 as a driving means is accommodated in the case body 11 of the floor brush 9 on the rear side of one of the shaft supporting recesses 51. A rotating shaft 62 that rotates by driving 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 of the receiving plates 41 of the rotating brush 13 attached to the inside of the case body 11 of the floor brush 9, and has a rotation direction coinciding with the rotating direction of the receiving plate 41. ing.
[0030]
A belt body 64 as an endless adjustment band is wound between the gear 63 and the gear portion 47 of one receiving plate 41 of the rotating brush 13 so as to bridge. On the inner peripheral surface of the belt body 64, a not-shown gear groove having an interval and a size that can be engaged with the gear groove of the gear 63 and the gear groove 46 of the gear portion 47, respectively, is formed. Therefore, when the motor 61 is driven, the gear 63 is rotated by the rotation of the rotation shaft 62 of the motor 61, and the rotation of the gear 63 rotates the belt body 64 to rotate the one receiving plate 41 of the rotary brush 13. Then, the rotating brush 13 is rotationally driven in the circumferential direction.
[0031]
Next, a method of assembling the floor brush according to the embodiment will be described.
[0032]
First, as shown in FIG. 2, a brush base 14 having flexibility is formed by twisting extrusion so that each engaging recess 15 is formed in a spiral shape on the outer peripheral surface in the circumferential direction.
[0033]
Next, an external force is applied to one end of the brush base 14 in the axial direction, and one end of the brush base 14 in the axial direction is twisted, for example, about 180 ° in the circumferential direction with respect to the other end, as shown in FIG. Each engagement recess 15 is linearly formed along the axial direction of the brush stand 14.
[0034]
In this state, the brush mounting portion 23 of the brush member 21 and the blade mounting portion 28 of the scraping member 22 are moved so that the brush member 21 and the scraping member 22 protrude in the radial direction of the brush base 14. Is slid and locked in each of the engaging recesses 15 from one axial end to the other axial end. At this time, the brush members 21 and the scraping members 22 are attached alternately along the circumferential direction of the brush stand 14.
[0035]
Thereafter, when the external force that twists the brush base 14 is released, the brush base 14 moves together with the brush member 21 and the scraping member 22 in the circumferential direction due to the restoring force of the member forming the brush base 14, as shown in FIG. It returns to the original state of being spirally twisted toward.
[0036]
Then, as shown in FIG. 1, the shaft 32 is inserted into the shaft insertion hole 31 of the brush stand 14 on which the brush member 21 and the scraping member 22 are attached on the outer peripheral surface, and as shown in FIG. The rib is inserted into the insertion hole 42 of the receiving plate 41, and each of the ribs 43 of the receiving plate 41 is fitted into each of the engaging recesses 15 from both ends of the brush stand 14 as shown in FIG. 5.
[0037]
In this state, the pin insertion holes 53 of each receiving plate 41 are aligned with and communicate with the pin insertion holes 33 of the shaft 32, respectively, and the pins 54, 54 are inserted to connect the receiving plates 41 to the shaft 32, respectively. Let it.
[0038]
Thereafter, bearings 48 are rotatably fitted and attached to both ends of the shafts 32 protruding outward from the insertion holes 42 of the respective receiving plates 41 to form the rotating brush 13.
[0039]
Then, each of the bearings 48 of the rotating brush 13 is fitted into each of the shaft supporting recesses 51 of the case body 11, and the rotating brush 13 is rotatably supported in the suction port 12 of the case body 11. The floor brush 9 is completed.
[0040]
Next, the operation of the embodiment will be described.
[0041]
First, when cleaning, the floor brush 9 is connected to the cleaner body 1 via the hose body 4 and the extension pipe 8. Then, the user holds the grip 7 of the hose body 4 and pushes it to move the floor brush 9 back and forth on the floor surface.
[0042]
At this time, dust on the floor surface is sucked together with air from the suction port 12 of the floor brush 9 by a suction force generated by driving the electric blower 2 in the cleaner body 1.
[0043]
Further, when the predetermined setting button 6 of the manual operation unit 5 of the hose body 4 is turned on and the rotating brush 13 of the floor brush 9 is driven to rotate, the rotation of the brush member 21 of the rotating brush 13 causes this rotation. The floor surface is brushed by the brush bristles 24 of the brush member 21. That is, when the floor surface is between the boards, the dust stuck to the floor surface is swept away from the floor surface, removed and polished, and sucked into the suction port 12 of the floor brush 9.
[0044]
At the same time, dust on the floor surface is swept away by the rotation of the scraping member 22 of the rotating brush 13. That is, when the floor surface is a carpet or the like, the dust entering the carpet is scraped out and removed by the scraping portion 26 of the blade 27 of the scraping member 22, and the floor brush 9 It is sucked into the suction port 12.
[0045]
Thereafter, the air sucked together with the 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 via the extension pipe 8 and the hose body 4 sequentially. Thereafter, the dust sucked into the dust collection pack accommodated in the cleaner body 1 and the dust sucked together with the air is captured.
[0046]
As described above, in the above-described embodiment, the engaging recesses 15 formed in advance in a spiral shape in the circumferential direction are provided along the axial direction on the outer peripheral surface of the brush stand 14 having flexibility. The base ends of the brush member 21 and the scraping member 22 that are softer than the brush stand 14 are locked in the respective engagement recesses 15, and the brush member 21 and the scraping member 22 are attached to the outer peripheral surface of the brush stand 14 by protruding. Configuration.
[0047]
As a result, when assembling the rotating brush 13, the brush member 21 and the brush member 21 are twisted in the circumferential direction so that the engaging recesses 15 are linear in the axial direction of the brush table 14. The brush member 21 and the scraping member 22 are easily engaged with the brush stand 14 by sliding the base end side of the scraping member 22 from one end side in the axial direction of each engagement recess 15 to the other end side. Since it can be stopped, manufacturability can be improved.
[0048]
In addition, since the brush base 14 is formed in a state in which the brush base 14 is twisted in advance in the circumferential direction, a brush is provided in each engagement recess 15 of the brush base 14 so as to be linear along the axial direction of the brush base 14. When the base ends of the member 21 and the scraping member 22 are locked, the brush stand 14 itself is spirally twisted in the circumferential direction by the restoring force of the brush stand 14 itself.
[0049]
For this reason, in the state where the rotating brush 13 is assembled, a circumferential restoring force is not applied to the brush base 14, and the torsional load of the brush base 14 in the circumferential direction in the state where the rotating brush 13 is assembled, that is, stress Can be reduced.
[0050]
Further, since stress in the circumferential direction is less likely to be applied to the brush stand 14 in a state where the rotating brush 13 is assembled, circumferential stress is applied to the rib 43 of the receiving plate 41 fitted into the locking recess 29 of the brush stand 14. The ribs 43 are hardly added, and damage such as breakage of the ribs 43 can be more reliably prevented.
[0051]
Then, by making the restoring force of the brush base 14 larger than the restoring force of the brush member 21 and the scraping member 22, the brush member 21 and the base end side of the scraping member 22 are attached to the brush base 14, The brush base 14 is securely restored in a spiral shape together with the brush member 21 and the scraping member 22 without separately applying an external force for twisting the base 14 in the circumferential direction, so that the external force is separately applied to twist the brush base 14. As compared with the conventional case in which it is added, it can be manufactured more easily, and the productivity can be further improved.
[0052]
In the above embodiment, a plurality of rotating brushes 13 may be provided on the floor brush 9. In addition, although the rotary brush 13 is driven to rotate by the motor 61, a configuration in which the rotary brush 13 is driven to rotate by the intake air from the electric blower 2 may be used.
[0053]
And although the four engagement recessed parts 15 were provided in the brush stand 14, at least one or more may be sufficient according to the number of cleaning members attached to this brush stand 14. Further, the cleaning member is not limited to the brush member 21 or the scraping member 22, but may be, for example, a floor polishing member having a cloth blade. Further, the brush members 21 and the scraping members 22 are alternately attached to the engaging recesses 15 of the brush stand 14, but the present invention is not limited thereto. Only one or a plurality of types may be attached.
[0054]
In addition, when assembling the rotating brush 13, the brush member 21 or the scraping member 22 becomes a load that prevents the brush base 14 from being restored to the original twisted state, and the engagement recess 15 of the brush base 14 is linearized. If the brush base 14 does not completely return to the original twisted state simply by releasing the external force, an auxiliary external force may be applied to the brush base 14 to restore the brush base 14 to the original twisted state. It is possible.
[0055]
Furthermore, not only the canister type vacuum cleaner, but also an upright type in which the floor brush 9 is formed directly on the lower surface of the cleaner body 1, and a self-propelled type in which the cleaner body 1 and the floor brush 9 are integrated. The vacuum cleaner or the handy type can be used correspondingly.
[0056]
【The invention's effect】
According to the present invention, by forming the flexible mounting member in a twisted state in advance, the base end side of the cleaning member is moved in a state in which the mounting recess is returned linearly along the axial direction of the mounting member. Since it can be easily locked in the mounting recess, the manufacturability can be improved, and the restoring force in the circumferential direction is not applied to the mounting member in the assembled state, so that the torsional load can be reduced.
[Brief description of the drawings]
FIG. 1 is an exploded perspective view showing a part of a rotary cleaning body according to an embodiment of the present invention.
FIG. 2 is a partial perspective view showing an assembling process of the rotary cleaning member.
FIG. 3 is a partial perspective view showing an assembling process of the rotary cleaning member.
FIG. 4 is a partial perspective view showing an assembling process of the rotary cleaning member.
FIG. 5 is a perspective view showing the rotary cleaning member according to the first embodiment;
FIG. 6 is a longitudinal sectional view showing a suction port body of the electric vacuum cleaner provided with the rotary cleaning body.
FIG. 7 is a plan view showing a suction port body of the electric vacuum cleaner.
FIG. 8 is a perspective view showing the vacuum cleaner provided with the suction port of the vacuum cleaner.
[Explanation of symbols]
9 Floor brush 13 as suction body of vacuum cleaner 13 Rotary brush 14 as rotary cleaning body Brush base 15 as mounting member Engaging concave portion 21 as mounting concave portion Brush member 22 as cleaning member 22 Cleaning member as cleaning member 32 Shaft as shaft

Claims (5)

A shaft-shaped mounting member having flexibility and having a mounting recess formed in a spiral shape in advance in the circumferential direction on the outer peripheral surface along the axial direction,
A rotary cleaning body, comprising: a cleaning member having a base end side locked in the mounting recess and protrudingly mounted on an outer peripheral surface of the mounting member, the cleaning member being softer than the mounting member. The rotating cleaning body according to claim 1, wherein the mounting member has a greater restoring force than the cleaning member. The rotary cleaning body according to claim 1 or 2, wherein the mounting member has a shaft body harder than the mounting member, and is concentrically inserted into the mounting member, and both ends are held together with the shaft body. A suction port body for a vacuum cleaner, comprising the rotary cleaning body according to any one of claims 1 to 3. A tubular attachment member having flexibility is formed on the outer peripheral surface so that the attachment concave portion is formed in a spiral shape in the circumferential direction,
Twisting the mounting member by applying an external force so that the mounting recess is linear along the axial direction of the mounting member,
A cleaning member is attached to an outer peripheral surface of the attachment member by locking a base end side to the attachment recess so as to protrude in a radial direction of the attachment member,
A method for manufacturing a rotary cleaning body, characterized in that an external force that twists the mounting member is released to return the mounting member to its original state.

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