JP2001299656A - Rotary brush for electric floor polisher - Google Patents

Abstract

PROBLEM TO BE SOLVED: To facilitate the change of brush pristles of a rotary brush for an electric floor polisher for cleaning a floor and the like, and reduce the weight of the rotary brush for the electric floor polisher. SOLUTION: The rotary brush 1 for an electric floor polisher has a base 2 having a circular part 4 whose peripheral side has radially extending platelike ribs 5 in circumferentially spaced fashion and having groove portions 7 each delimited by adjoining ribs 5 and the peripheral side of the circular part 4, and bristle-implanted plates 3 each including a platelike member 10 to which brush bristles 12 are implanted. When the platelike member 10 is inserted in the groove portion 7, flexible wall-like bodies 11 raised from a top surface 10a of the platelike member and hooks 13 are engaged in the groove portion 7 to fix the bristle-implanted plate 3 on the base 1.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rotary brush for an electric floor polisher to be attached to an electric floor polisher used for cleaning a floor of a building or the like.

[0002]

2. Description of the Related Art An electric floor polisher cleans a floor surface by rotating a rotary brush for an electric floor polisher attached to a rotating shaft of a motor housed in a main body. Here, the electric floor polisher moves forward when the operating handle is pressed,
When the main body is tilted by depressing the pedal of the operation handle, the direction can be changed. Conventionally, a rotary brush for an electric floor polisher has been used in which a large number of brush bristle materials are directly and annularly implanted on the lower surface of a disk-shaped base.
As the brush bristle material, a filament made of vinyl chloride or nylon containing a large number of abrasive grains is used.

[0003]

However, in such an electric floor polishing machine, the main body is moved forward or backward while tilting the main body part back and forth with respect to the floor, and the direction is changed. The brush bristle material planted on the outer peripheral side of the brush often wears faster than the brush bristle material planted on the center side. If the brush bristle material on the outer peripheral side is worn first, the contact area between the rotating brush for the electric floor polishing machine and the floor surface is reduced, so that the stability with respect to the floor surface is deteriorated,
There have been problems such as the occurrence of rotational vibration and a decrease in the floor area that can be cleaned at one time. Further, in such a case, the entire rotary brush for the electric floor polisher including the bristle material on the center side with less wear must be replaced, which is uneconomical.

On the other hand, the applicant of the present application has filed Japanese Patent Application No. Hei.
Japanese Patent Application Publication No. 1-354903 discloses a rotary brush for an electric floor polishing machine in which a flocked plate in which a bristle material is planted is made detachable from a base. However, in such a rotary brush for an electric floor polisher, since the flocking plate is fixed so as to overlap with the base, it has been difficult to reduce the weight of the rotary brush for the electric floor polisher as a whole. . Therefore, the problem to be solved by the present invention is to make it possible to replace the brush bristle material and to reduce the weight of the rotary brush for the electric floor polisher.

[0005]

The invention according to claim 1 of the present invention has a circular portion, and a plate-like rib extending radially on the outer surface of the circular portion extends along the circumferential direction of the outer surface. A base provided at equal intervals and having a notch defined by adjacent ribs and the outer surface of the circular portion, and a plate-like member insertable into the notch, wherein the plate-like member is inserted into the notch. A rotary brush for an electric floor polisher, comprising: fixing means for fixing; and a flocking plate provided with a bristle material brushed on the lower surface of the plate-like member.

According to the rotary brush for an electric floor polisher according to the first aspect, the flocked plate inserted into the cutout portion of the base is fixed by the flocked plate fixing means, so that the flocked plate with respect to the base is fixed. Can be easily attached and detached. Therefore, the brush bristle material can be easily replaced when worn. In addition, by inserting the plate-shaped member into the cutout portion, a portion where the plate-shaped member and the base do not overlap with each other is formed, so that the electric floor is compared with a case where the plate-shaped member and the base completely overlap with each other. It is possible to reduce the weight of the rotating brush for the polishing machine as a whole.

According to a second aspect of the present invention, the fixing means comprises a flexible wall-shaped member standing upright from an outer edge of an upper surface of the plate-shaped member, and a plate-like member provided at an upper end of the wall-shaped member. The rotary brush for an electric floor polisher according to claim 1, further comprising a hook bent toward the outside of the member.
According to the rotary brush for an electric floor polisher according to the second aspect, the flocking board and the base are easily and firmly fixed by the repulsive force of the flexible wall-like body and the locking by the hook. be able to.

Further, the invention according to claim 3 of the present invention provides:
The rotary brush for an electric floor polishing machine according to claim 1 or 2, further comprising an upper plate connected to the circular portion and / or the rib and covering a part of the cutout portion. According to the rotary brush for an electric floor polishing machine according to the third aspect, the base plate can be prevented from being bent by the upper plate.

According to a fourth aspect of the present invention, the plate-like member is composed of plate-like member pieces that can be divided in the extending direction of the rib, and each of the plate-like member pieces has a brush bristle material. The rotary brush for an electric floor polisher according to claim 1, wherein the rotary brush has a fitting means. Claim 4
According to the rotary brush for an electric floor polisher described in the above, by forming the flocking plate from a plurality of plate-shaped member pieces, while leaving the brush bristle material on the inner peripheral side with little wear, on the outer peripheral side that is easily worn Since only the brush bristle material can be replaced, the brush bristle material can be used efficiently.

[0010]

Embodiments of the present invention will be described in detail with reference to the drawings. An exploded perspective view of FIG. 1, and
As shown in an enlarged cross-sectional oblique view of a main part of FIG. 2, the rotating brush 1 for an electric floor polishing machine has a disc-shaped base 2 having a center of rotation C.
And a flocking plate 3 fixed to the base 2. The base 2 has a circular portion 4 having an opening at the center, plate-like ribs 5 provided at equal intervals along the outer surface of the circular portion 4 and extending radially from the circular portion 4, It is a plastic member having an annular outer cylinder portion 6 provided so as to connect the ends thereof, and integrally molded.

Here, an area defined by the outer surface of the circular portion 4, the adjacent ribs 5 and 5, and the inner surface of the outer cylindrical portion 6 has an opening extending from the upper surface of the base 2 to the lower surface. Is formed, and the notch 7 is
By inserting the flocking board 3, the flocking board 3 is fixed to the base 2. The rib 5 is provided with a cleaning liquid supply port 8 for supplying a cleaning liquid.
A ring-shaped scattering prevention means 9 for preventing the washing liquid from scattering due to centrifugal force is fixed outside the position where the cleaning liquid is formed.

The outer cylinder 6 prevents the ribs 5 and 5 from warping, and prevents the flocking plate 3 from coming off the base 2 due to the centrifugal force during rotation of the rotary brush 1 for the electric floor polishing machine. It has a role, and the width of the outer cylindrical portion 6 is 5 to 8 m over the entire circumference.
Although it is desirable to be about m, a part of the outer cylindrical portion 6 may be cut out. The diameter of the base 2 is 200 to 500 m.
m, and when the diameter of the base 2 exceeds 400 mm,
It is preferable to attach a reinforcing member such as a bar or a warp prevention plate to the upper surface of the base 2. Further, the height of the circular portion 4 may be the same as the height of the rib 5 and the outer cylindrical portion 6.

The flocking plate 3 has a plate-like member 10 which can be inserted into the cutout portion 7 and a wall-like body 11 which is a fixing means which stands vertically from both side ends 10b of an upper surface 10a of the plate-like member 10.
And a brush bristle material 12 planted on the lower surface 10 c of the plate-shaped member 10. The wall-shaped body 11 is made of a member thinner than the plate-shaped member 10, has flexibility, and has an upper end portion with a hook 13 bent outward.

The brush bristle material 12 is a filament brush made of vinyl chloride or nylon or the like containing abrasive grains, and is provided in each of a plurality of flocking holes 14 formed in the lower surface 10c of the plate member 10. A plurality of hairs are planted. The arrangement of the flocking holes 14 is radially arranged from the inside to the outside as shown in FIG.
Further, as shown in FIG. 3B, the direction of the flocking hole 14 provided on the inner peripheral end 10 d side of the plate member 10 is
0, and the direction of the flocking hole 14 provided on the outer peripheral end 10e side of the plate-shaped member 10 is
The opening 4 is inclined so as to face the outer peripheral end 10e. The brush bristle material 12 is implanted outward in the flocking hole 14 inclined toward the outer peripheral end 10e, so that the plate-like member 10
Since the area of contact with the floor surface can be increased as compared with the case where the hair is planted vertically, the cleaning operation can be performed efficiently.

When such a flocking plate 10 is inserted into the cutout portion 7 from below the base 2, as shown in FIG. 2, the lower surface 10c of the plate member 10 and the lower surface of the rib 5 are substantially aligned, and The wall portion 11 is bent inside the flocking plate 3 by the inclined portion 5 a provided above the side surface of the rib 5, and the hook 13 contacts the upper surface of the rib 5. By the repulsive force generated by the bending of the wall portion 11 and the locking of the hook 13, the flocking plate 3 can be securely fixed to the base 2. Therefore,
The flocking board 10 does not come off the base 2 even by the centrifugal force at the time of rotation of the rotary brush 1 for the electric floor polishing machine. Further, the flocking plate 3 can be easily removed from the cutout portion 7 by removing the hook 13 with a hand or a screwdriver.

In the present embodiment, the plate-like member 1
A plurality of through-holes or cutout grooves penetrating from the upper surface 10a to the lower surface 10c may be provided on the plate 0 within a range that does not impair the strength of the plate member 10. By providing the through-holes and the notch grooves, the weight of the plate-shaped member 10 can be reduced.
The fixing means includes a wall-shaped portion 11, a through hole or a recess formed in the wall-shaped portion 11, and a projection formed on a wall surface of the rib 5, and the projection is locked in the through-hole or the recess.
Any fixing means such as engaging the flocking plate 3 and the base 2 or screwing a plate material erected on the plate member 10 to the base 2 can be used. Further, the fixing means can be provided on the side surface or the lower surface 10c of the plate member 10. The wall-shaped portion 11 does not need to be formed over the entire side end of the plate-shaped member 10, but may be provided so as to stand up from at least a part of the side end. Further, the wall-like portion 11
Can be provided not only on the side end of the flocking plate 3 but also on the inner peripheral end 10d and the outer peripheral end 10e. In this case, in order to ensure the flexibility of each wall-shaped portion 11, each wall-shaped portion 11 is arranged apart from each other. In this case, it is desirable to provide an inclined portion similar to the inclined portion 5a provided on the rib 5 on the upper portion of the outer surface of the circular portion 4 or the upper portion of the inner surface of the outer cylindrical portion 6, respectively.

Furthermore, the arrangement of the flocking holes 14 may be an arbitrary arrangement such as a staggered arrangement or a triangular arrangement.
The direction of 4 may be formed perpendicular to the plate member 10. Further, the cleaning liquid supply port 8 and the scattering prevention means 9 are not essential components of the present invention, and the effects of the present invention can be sufficiently exhibited even without these components. Further, when the flocked plate 3 and the base 2 can be securely fixed, for example, when the wall-shaped body 11 is formed in such a manner that the wall-shaped body 11 is formed so as to spread outside the both ends 10b of the plate-shaped member 10 in advance, the inclined portion 5a Need not be provided. In addition, the circular portion 4 can have any structure for fixing to a rotating shaft for an electric floor polisher, for example, a bottomed cylindrical shape, a cylindrical shape having irregularities for fixing on an upper surface, and the like.

Next, another embodiment of the rotary brush for the electric floor polisher of the present invention is shown in FIG. 4 and FIG. As shown in FIG. 4, the notch 20 is provided with an upper plate 21 and has a concave cross section. The upper plate 21 is a plate-like member that connects the outer surface of the circular portion 4 to the inner surface of the outer cylindrical portion 6,
A slit 22 is formed between the upper plate 21 and the rib 5. Further, a cushioning member 23 made of sponge or the like is inserted into a space between the upper plate 21 and the plate member 10 of the flocking plate 3. The cushioning material 23 absorbs the vertical movement of the brush bristle material 12 and the flocking plate 3 due to the unevenness of the floor surface or the like by expansion and contraction, and has a function of suppressing vibration during rotation of the rotary brush 1 for the electric floor polishing machine. Have.

The cushioning material 23 may be fixed to the upper plate 21 with an adhesive.
3 can also be fixed. In the latter case, it is desirable that the length of the protrusion is shorter than the distance between the upper plate 21 and the plate-like member 10 of the flocking plate 3, and that the cushioning material 23 is formed with a recess or a through hole in which the protrusion can be accommodated. . For example, as the cushioning material 23 having a through hole, a rubber tube having a through hole having a size substantially equal to the outer diameter of the protrusion can be used. In this case, the length of the rubber tube is preferably substantially equal to the distance between the upper plate 21 and the flocking plate 3, but may be equal to or longer than the length of the projection and less than the distance between the upper plate 21 and the flocking plate 3. . Also, upper plate 2
1 may be provided so as to straddle two adjacent ribs 5, or may be provided so as to straddle the circular portion 4 and the rib 5. Further, instead of the upper plate 21, a plurality of rod-shaped members may be provided in parallel.

FIG. 5 shows a frame 32 in which the projection 32 provided at the center of the upper plate 31 is brought into contact with the plate member 10 of the flocking plate 3 and the plate member 10 surrounds the projection 32. Body 33
Is provided. By fitting the projection 32 to the frame 33, the flocking board 3 can be firmly fixed to the notch 30 without using the wall 11. The interior of the projection 32 is desirably hollow from the viewpoint of weight reduction, and the shape of the projection 32 can be an arbitrary shape such as a square or a circle. Further, the number of the protrusions 32 can be arbitrarily selected. However, in order to stably support the flocking board 3, the total contact area between the protrusions 32 and the plate-like member 10 is Is preferably about half the area of the upper surface 10a.

On the other hand, the frame 33 does not need to surround all the side portions of the projection 32, and may be partially cut away. For example, when the cross-sectional shape of the protrusion 32 is a quadrangle, the frame 33 may be configured to cover at least one of the four sides forming the side surface of the protrusion 32, or the center of one side. Alternatively, it may be configured to cover only the end. In addition, the protrusions 32, the frame 33, or the upper surface 10a of the plate member 10 may be provided with irregularities or protrusions to enhance the frictional force or engagement force between the upper plate 31 and the flocking plate 3. Further, the recess formed in the protrusion 32 may be an opening penetrating the protrusion 32. The upper plate 31 may be provided with a small air hole.

It should be noted that the present invention is not limited to each embodiment but can be widely applied. For example, the cushioning material 2 is provided between the upper plate 31 having the projections 32 and the flocking plate 3.
3 is inserted, and the flocked plate 3 is firmly fixed to the base 1 by using the projections 32 and the frame 33 together with the wall 11 and the hooks 13. be able to. The plate-shaped member 10 has the same shape as the cutouts 7, 20, and 30.
Can be inserted into the cutouts 7, 20, 30. For example, the outer end 10 e of the plate-shaped member 10 may be configured to be flush with the outer surface of the outer cylinder 6. Further, the side end portion 1 of the plate member 10
The polishing effect can also be enhanced by bending the bristles 0b and the outer ends 10e upward by a predetermined amount to diversify the bristle implantation angle of the brush bristle material 12 planted on the plate-shaped member 10.

As shown in FIG. 6, the flocking plate 41 is divided in the radial direction of the base 1 into plate-like member pieces 42, 43.
Can also be configured. The brush bristles 44 on the outer peripheral side of the rotating brush 1 for the electric floor polisher having a large moving amount during rotation wear more than the brush bristle members 45 on the inner peripheral side of the rotating brush 1 for the electric floor polisher having a small moving amount. Intense. In such a case, if only the outer plate member 42 that is easily worn is replaced, the inner plate member 43 with less wear can be continuously used. It is possible to improve the use efficiency of the brush bristle members 44 and 45 when viewed as "". In this case, the number of divisions of the flocking plate 3 can be appropriately selected depending on the size of the rotary brush 1 for the electric floor polishing machine, but it is desirable to divide the flocking plate into two or three plate-shaped member pieces for ease of handling.

Further, the notches 7, 20, 3 are formed so that the arc length of the circular portion 4 is equal to the arc length of the outer cylinder portion 6.
0 may be formed. In this case, the plate member 4 on the outer peripheral side
Since the shape of 2 and the shape of the plate member 43 on the inner peripheral side can be made equal, the plate member piece 43 on the outer peripheral side and the plate member member 44 on the inner peripheral side can be exchanged. Therefore, it is possible to reduce the number of types of parts and to improve the use efficiency of the brush bristle material. When the upper plates 21 and 31 and the flocking plate 3 are fastened with screws, the fixing of the flocking plate 3 to the upper plates 21 and 31 can be strengthened. In this case, the screw holes formed in the plate member 10 and the screws are included in the fixing means. Furthermore, upper plate 2
An opening is formed in each of the projections 1, 31 and the projections 32, and a bar-shaped jig such as a screwdriver is passed through the openings to push out the flocked plate 3. Can be removed.

The scattering preventing means 9 for preventing the washing liquid from scattering from the rotary brush 1 for electric floor polisher due to centrifugal force is replaced with a rib 5 and a rib 5 instead of using a ring-shaped member. It may be a plate-like member having a predetermined amount of clockwise length. This is because the cleaning liquid flows clockwise as the rotating brush 1 for the electric floor polishing machine rotates counterclockwise, so that the scattering prevention means 9 moves the predetermined amount clockwise from the rib 5 having the cleaning liquid supply port 8. This is because it is sufficient to provide the rotary brush 1 for the electric floor polishing machine so as to reduce the weight. Here, the shape of the plate-shaped member can be any shape such as an arc shape or a wave shape. Further, the cleaning liquid supply port 8 for supplying the cleaning liquid to the brush bristle material 12 can be formed in the plate-shaped member 10. The cleaning liquid can be efficiently supplied to the brush bristle material 12, and the outer cylinder 6 can prevent the cleaning liquid from scattering.

[0026]

According to the present invention, a rotary brush for an electric floor polisher for fixing a flocking board inserted into a cutout section defined by an annular circular portion and a rib by a fixing means, the base is fixed by the fixing means. The flocked board can be easily and reliably attached to and detached from the flock. In addition, by inserting the plate-shaped member into the cutout portion, a portion where the plate-shaped member and the base do not overlap with each other is formed, so that the electric floor is compared with a case where the plate-shaped member and the base completely overlap with each other. It is possible to reduce the weight of the rotating brush for the polishing machine as a whole. In addition, since the fixing means is a flexible wall-shaped body and a hook is provided at the upper end of the wall-shaped body, a repulsive force generated by bending the wall-shaped body and hooking of the hook cause the flocking plate to be cut into the notch. Can be fixed. Therefore, the flocking board can be firmly fixed with a simple configuration.

Further, since the upper plate is provided to cover at least a part of the cutout portion, the base plate can be prevented from being bent by the upper plate. In addition, by dividing the flocking plate into a plurality of parts, the brush on the outer peripheral side of the rotating brush for the electric floor polisher that is easily worn while leaving the inner bristle material of the rotating brush for the electric floor polisher with less wear is reduced. Only the bristle material can be replaced, and the brush bristle material can be used efficiently.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view showing an embodiment of the present invention.

FIG. 2 is a partially enlarged view of a rotary brush for an electric floor polisher.

3A is a bottom view of the plate member, and FIG. 3B is a sectional view taken along line XX.

FIG. 4 is a cross-sectional view of a main part showing another embodiment of the present invention.

FIG. 5 is a cross-sectional view of a main part showing another embodiment of the present invention.

FIG. 6 is a perspective view showing a state in which the flocking board is divided into two plate members.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Rotary brush for electric floor polishers 2 Base 3 Flocked board 4 Circular part 5 Rib 6 Outer cylinder part 7, 20, 30 Notch part 10 Plate member 10a Upper surface 10b Side end 10c Lower surface 11 Wall-shaped part 12 Brush hair Material 13 Hook 21, 31 Upper plate 23 Buffer material

Claims (4)

[Claims] 1. A circular portion having plate-shaped ribs extending radially on an outer surface of the circular portion at equal intervals along a circumferential direction of the outer surface, the ribs being adjacent to each other and the circular shape being provided. A base having a notch defined by the outer surface of the portion, a plate-like member insertable into the notch, and fixing means for fixing the plate-like member to the notch; and A flocked plate having a brush bristle material planted on the lower surface of the plate-like member. 2. The fixing means according to claim 1, wherein said fixing means comprises: a flexible wall-shaped member erected from an outer edge of an upper surface of said plate-shaped member; The rotary brush for an electric floor polisher according to claim 1, further comprising a bent hook. 3. The rotary brush for an electric floor polisher according to claim 1, further comprising an upper plate connected to the circular portion and / or the rib and covering a part of the cutout portion. . 4. The plate-like member is composed of plate-like member pieces that can be divided in the extending direction of the rib, and each of the plate-like member pieces has the brush bristle material and the fixing means. The rotary brush for an electric floor polisher according to claim 1, 2, or 3, wherein