JP3073119B2 - Rotary brush of suction body - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rotary brush provided on a suction port of a vacuum cleaner.

[0002]

2. Description of the Related Art Conventionally, as shown in FIGS. 23 and 24, a vacuum cleaner is provided with a suction port 4 having an appearance formed by an upper case 1, a lower case 2 and a lid 3. A drive pipe 5 is provided at the rear of the suction port body 4 so as to be vertically rotatable. A rotatable suction pipe 6 is connected to the tip of the drive pipe 5. The lower case 2 functions as a sleigh for a carpet, and has an opening 7 for dust absorption formed in a horizontally long rectangle, and a sealing material 8 is disposed behind the opening 7. The lower case 2 is provided with a front wheel 9 and a rear wheel 10, and the front and rear wheels 9, 10 are configured such that a certain gap is provided between the lower case 2 and a floor surface.

A rotary brush 11 is rotatably mounted in the suction port 4 via a support 12 in a brush chamber 13.
And a communication path 14 communicating from the brush chamber 13 to the drive pipe 5 side, and a dust suction path 15 extending from the opening 7 to the suction pipe 6 is formed. And the dust suction passage 15
A driving motor 16 is disposed outside the rotating brush 11 to rotate the rotating brush 11 via a belt 17. In addition, a bumper 18 for buffering an obstacle is provided between the upper case 1 and the lower case 2.

The rotating brush 11 comprises a rotating body 19 and a support 12 fixed to both ends thereof, and as shown in FIGS. 25 and 26, the rotating body 19 has a projection 20 and a brush bristle as shown in FIGS. 21 and FIG.
8, a plate-like blade 22 made of rubber, vinyl chloride, or the like.
29, and the brush bristles 21 fixed to a brush base 23 made of rubber or the like as shown in FIGS.
Some are provided. In addition, as shown in FIGS. 31 to 33, a wheel 24 is provided at the end of the rotating body 19,
As shown in FIGS. 4 to 36, there is a wheel having a play through the wheel holder 25.

[0005] The rotating body 19 is formed by twisting by profile extrusion, and has a projection 20 on its outer peripheral surface.
Also, an insertion groove 26 such as a brush as shown in FIG. 37 is integrally formed. And both ends of the rotating body 19 are shown in FIGS.
6, the mounting portion 27 for mounting the support 12 and the support shaft 2
The shaft hole 29 for inserting the hole 8 is formed by machining such as a drill or a mill after extrusion molding.

[0006]

However, in the conventional rotary brush 11 of the suction opening 4, since the rotary body 19 is formed by irregular extrusion molding, the inside of the rotary body 19 becomes solid and the product weight becomes heavy. As a result, the operability of the suction port body 4 was deteriorated.

Further, the mounting portion 27 and the shaft hole 2 are machined.
Since the hole 9 is formed, the center of the shaft hole 29 is shifted due to a variation during processing. Due to such misalignment of the center and the weight of the rotating body 19, when the rotating brush 11 is rotated, poor rotation or rotational vibration occurs, and the noise at the suction opening 4 is increased.

For this reason, a projection 20 is formed on the rotating body 19, and a balance weight or the like is attached to the surface of the rotating body 19 to prevent rotational vibration and the like. It was a cause and was unsightly in appearance.

[0009] Further, the product formation by profile extrusion molding is as follows:
It is difficult to set the product balance and molding conditions during molding,
In addition, since precision is required for post-processing by a machine or the like, a skilled worker is required. In addition, since separate parts such as the support 12 and the wheels 24 are required, there is a problem that the product cost is increased.

SUMMARY OF THE INVENTION In view of the above, it is an object of the present invention to provide a rotary brush of a suction port body which is lightweight and can prevent rotational vibrations and which can be easily assembled.

[0011]

As shown in FIG. 1, a means for solving the problem according to the present invention comprises a rotating body 41 rotatably supported by a suction port 4 via a support 12 and an outer periphery of the rotating body 41. And a cleaning body 42 provided on the surface along the axial direction. The rotating body 41 includes a plurality of divided pieces 43a and 43b divided along the axial direction, and the divided pieces 43a and 43b are formed by injection molding. the formed twisted in the rotational direction of the axial direction as the axis, the split pieces 43a, 43b are integrated into a cylindrical shape by joining means 44. And the support 12
Is attached to the rotating body 41 by attachment portions 56 integrally formed at both ends of one divided piece 43a, and the cleaning body 42 is mounted between the adjacent divided pieces 43a and 43b. The cleaning body 42 may be a projection 66 integrally formed on the outer surfaces of the divided pieces 43a and 43b.

Then, as the joining means 44, the divided pieces 43
a through-hole 47 formed in a and the opposing divided piece 43b
A screw 50 is inserted into the screw hole 48 formed in the screw hole and screwed, or the ribs 51 formed on the inner surfaces of the divided pieces 43a and 43b are engaged with each other and adhered.

In order to prevent rotational vibration, a balance weight 60 is attached to the inner surface of the rotating body 41,
A hollow wheel 61 is provided at the end of the
4 is injected and sealed, or a hole 65 or a recess is formed in the divided pieces 43a and 43b.

A wheel 67 is provided at the outer peripheral end of the rotating body 41.
Provided at the ends of the divided pieces 43a and 43b.
The engaged portion formed on the wheel 67
69 are engaged. A play is provided in the circumferential direction between the engaged portion 69 of the wheel 67 and the engaging portion 70 of the rotating body 41.

Here, instead of forming the wheel 67 or the support 12 as a separate part, the wheel 67 or the support 12 is formed integrally with one divided piece 43a, or divided and formed integrally with each divided piece 43a, 43b. In particular, the wheels 71a, 71b are
It may be formed by a double molding using a soft material different from 43b. Further, the outer surface of the integrally formed support 12 serves as a driving force transmitting portion.

[0016]

In the above means for solving the problems, first, the divided pieces 43a and 43b of the rotating body 41 are formed by injection molding. Split pieces 43a, 43b is formed into an arbitrary constant thickness at 1 80 ° twisted shape. Through holes 47 and screw holes 48 are formed simultaneously with the molding . In particular, a mounting portion 56 for mounting the support 12 is integrally formed with one divided piece 43a .

Then, a screw 50 is inserted into the through hole 47 and the screw hole 48 of each of the divided pieces 43a and 43b, and is screwed. Alternatively, the rib 5 on the inner surface of each of the divided pieces 43a and 43b
1 are engaged and bonded, the divided pieces 43a and 43b are integrated into a cylindrical shape, and the rotating body 41 is assembled. As described above, since the divided pieces 43a and 43b are integrated into a cylindrical shape, the rotating body 41 is lightweight and well-balanced.

The cleaning body 42 is mounted between the divided pieces 43a and 43b. Alternatively, the projection 66 is formed integrally with the divided pieces 43a and 43b instead of the cleaning body 42.
Next, the support 12 is fixed to the mounting portion 56, and the rotating brush is completed.

Here, when the rotating brush is rotated, the balance weight 60 on the inner surface of the rotating body 41 has a moment of inertia that tends to rotate around the axis, and this moment of inertia causes unbalance due to manufacturing variations of the rotating body 41. Correspondingly, the rotating body 41 works to maintain stable rotation around the axis. As a result, the rotational balance of the rotating body 41 is improved.

Similarly, the liquid 64 in the wheel 61 moves in the wheel 61 by the centrifugal force, and serves as a balance weight, so that the rotational balance of the rotating body 41 is improved and the rotational vibration can be reduced.

Further, when a hole 65 or a recess is formed in each of the divided pieces 43a and 43b, the weight of the rotating body 41 is reduced, and the moment of inertia during rotation is reduced, so that rotational vibration can be reduced.

The wheel 67 is easily fixed to the rotating body 41 simply by engaging the engaged portion 69 of the wheel 67 with the engaging portion 68 of the divided piece 43a. Alternatively, the wheel 67 is formed integrally with the divided pieces 43a and 43b. in this way,
By providing the wheels 67, when the rotating brush rotates,
The wheel 67 is in contact with the floor surface, so that the operation force for moving the suction opening body 4 in the front-rear direction can be reduced.

When the rotating brush starts rotating, the rotating body 41 rotates immediately, but the wheel 67 cannot rotate immediately due to friction with the floor surface. Therefore, if a play is provided between the engaged portion 69 and the engaging portion 70, the wheel 67 rotates together with the rotating body 41 after the play is absorbed, so that a load is applied to the drive motor 16 at the time of starting. The rotating brush rotates smoothly without any action.

[0024]

【Example】

(First Embodiment) FIG. 1 is an exploded perspective view of a rotary brush of a suction port body according to a first embodiment of the present invention, FIG. 2 is a sectional view of the rotary brush of the first embodiment, and FIG. FIG. 4 is a perspective view of the suction port body. Note that the same components as those in the related art are denoted by the same reference numerals.

As shown in FIGS. 3 and 4, the rotary brush of the suction port body of this embodiment includes a rotary body 41 rotatably supported by the suction port body 4 via a support 12 and a rotary body 41 of the rotary body 41. A cleaning body 42 provided on the outer peripheral surface along the axial direction. Since the structure of the suction port body 4 is the same as that of the related art, the detailed description is omitted.

As shown in FIG. 1, the rotating body 41 is composed of two divided pieces 43a and 43b divided along the axial direction, and these divided pieces 43a and 43b are integrated into a cylindrical shape by the joining means 44. ing.

The divided pieces 43a and 43b are formed by injection molding using a hard synthetic resin. The divided pieces 43a and 43b are twisted 180 degrees in the axial direction and formed in a semicircular shape in a sectional view having a uniform thickness. I have.

A recess 45 is provided on the outer peripheral surface of each of the divided pieces 43a and 43b. As shown in FIG. 2, a convex portion 46 is provided on the inner peripheral surface corresponding to the concave 45, and the through hole 4 is formed at the center thereof.
7 is pierced. A receiving portion 49 having a screw hole 48 at a position facing the through hole 47 is formed on the inner peripheral surface of the other divided piece 43b so as to protrude. Then, as shown in FIG. 2, the convex portion 46 and the receiving portion 49 are engaged as the joining means 44, and the screw 50 is inserted into the through hole 47 and the screw hole 48, and is fixed by screwing. At this time, the head of the screw 50 does not protrude from the outer peripheral surfaces of the divided pieces 43a and 43b. In addition, five ribs 51 are erected at corresponding positions on the inner surfaces of the divided pieces 43a and 43b, and the corresponding ribs 51 come into contact with each other when the divided pieces 43a and 43b are joined.

The support 12 includes a support shaft 52 rotatably supported by the suction opening 4 and a holder 53 through which the support shaft 52 penetrates and engages the divided pieces 43a, 43b. 52 is integrated with the holder 53 by insert molding. The holder 53 has a hollow hole 54 formed therein. On the outer peripheral surface of one of the holders 53, a mountain-shaped tooth 55 as a driving force transmitting portion is formed, and the timing belt 17 is wound around the mountain-shaped tooth 55 and the driving pulley. The rotating brush is driven to rotate by the motor 16 or a fan.

At both ends of each of the divided pieces 43a and 43b, mounting portions 56 for mounting the support 12 are provided. The mounting portions 56 are formed by cutting out the cutout portions formed at both ends of one of the divided pieces 43a. And a substantially U-shaped receiving table 58 that engages with the fixing table 57 protruding from the other divided piece 43b. Then, the missing circular hole 54 of the holder 53
The fixed base 57 and the receiving base 58 are fitted to the base. In addition, the fixed base 5
The shaft hole 59 is formed in 7.

When the two split pieces 43a and 43b are combined, a spiral gap is formed between them. The brush bristles 21 made of rubber or the like and fixed to the brush stand 23 are mounted as cleaning bodies 42 in the gaps.

In the above configuration, in order to manufacture a rotating brush, first, the divided pieces 43a and 43b of the rotating body 41 are formed of a hard synthetic resin by injection molding. Divided pieces 43a, 4
3b has a constant thickness in a shape twisted 180 degrees in the axial direction,
At the same time as the divided pieces 43a and 43b, the rib 51 and the fixing base 57
And a pedestal 58 are integrally formed, and a through hole 47, a screw hole 48, and a shaft hole 59 are formed.

The projection 46 and the receiving portion 49 of the two divided pieces 43a and 43b are engaged with the receiving portion 49, the fixing base 57 and the receiving base 58, and the rib 51 are engaged with each other.
Adjust the position of. Then, the screw 50 is inserted into the through hole 47 and the screw hole 48 and screwed. Divided pieces 43a, 4
3b is integrated into a cylindrical shape to form a rotating body 41.
At this time, a gap is formed between the divided piece 43a and the divided piece 43b, and the cleaner 42 is inserted into the gap from the end of the rotating body 41 and mounted.

Next, the rotary shaft is completed by press-fitting the support shaft 52 into the shaft holes 59 of the divided pieces 43a and 43b and fitting the holder 53 into the mounting portion 56. Thereafter, the rotating brush is mounted in the suction port body 4.

As described above, by forming the rotating body 41 from the two injection-molded divided pieces 43a and 43b,
The thickness of the divided pieces 43a and 43b can be made uniform, and the rotating body 41 becomes hollow, so that weight reduction can be realized. The divided pieces 43a, 43 formed symmetrically along the axial direction
3b, the rotating body 41 with good balance can be obtained. Therefore, rotation failure and rotation vibration during rotation can be reduced.

The ribs 51, the fixed base 57 and the receiving base 58 can be integrally formed with the divided pieces 43a and 43b.
5. Since the screw hole 47 and the shaft hole 59 can be formed at the same time, it is not necessary to form a mounting portion or the like by conventional machining. Therefore, the labor of the worker can be saved, the work efficiency can be improved, and the number of parts can be reduced, so that the cost of the product can be reduced.

(Second Embodiment) FIG. 5 is an exploded perspective view of a rotary brush according to a second embodiment. As shown in FIG. 5, the rotary brush of the suction port body of the present embodiment has a balance weight 60 made of lead or the like attached to the inner surface of the rotary body 41 of the first embodiment. The balance weight 60 is attached to a position where the imbalance when the rotating body 41 is rotated is eliminated.

As described above, by attaching the balance weight 60, the balance weight 60 has an inertia moment that tends to rotate around the axis, and this inertia moment corresponds to the unbalance due to manufacturing variations of the rotating body 41, and Maintain a stable rotation of the body 41 about the axis. Therefore, the balance of the rotating body 41 is improved, the rotational vibration can be easily reduced, and the cost can be reduced. In addition, since it is attached to the inner surface of the rotating body 41, the appearance of the rotating body does not become uncomfortable as in the related art.

(Third Embodiment) FIG. 6 is a perspective view of a rotary brush according to a third embodiment, and FIG. 7 is a partial sectional view of the rotary brush.
As shown in FIG. 6, the rotary brush of the suction port body of this embodiment has wheels 61 provided between the end of the rotary body 41 and the support 12. The wheel 61 has a function of reducing the operating force of the front-rear movement of the suction opening 4 by contacting the floor surface when the rotating brush is rotating.

The wheel 61 is, as shown in FIG.
It has a two-stage boring that is fitted to the outside, and is provided with a truncated circular recess 62 that fits into the mounting portion 56 and a shaft fitting portion 63 that penetrates the support shaft 52 at the center. The wheel 61 is formed to be hollow, and water 64 is injected into the wheel 61 and hermetically sealed. However, the amount of water 64 in the wheel 61 is set to 70 to 80% of the internal volume of the wheel 61. And the support 12
By pressing the support shaft 52 into the shaft hole 59 and the shaft fitting portion 63, the wheel 61 and the support 12 are attached to the rotating body 41. The other configuration is the same as that of the second embodiment.

When the rotating body 41 rotates, the wheels 6
The water 64 injected and sealed into the wheel 1
Move within 1. As a result, the wheel 61 fulfills the function of a balance weight, the rotational balance of the rotating body 41 is improved, and it is possible to reduce poor rotation and rotational vibration.

(Fourth Embodiment) FIG. 8 is a perspective view of a rotary brush according to a fourth embodiment, and FIG. 9 is a sectional view of the rotary brush. As shown in FIGS. 8 and 9, the rotary brush of the suction opening body according to the present embodiment has a hole 65 for stealing meat in the divided pieces 43a and 43b. The meat stealing holes 65 are regularly arranged from end to end along the divided pieces 43a and 43b. Instead of the balance weight 60, the hole 65 for meat stealing may be formed only at the position where the unbalance is eliminated. Other configurations are the same as in the first embodiment.

By forming the hole 65 for meat stealing, the weight can be further reduced and the moment of inertia during rotation can be reduced, so that the balance of the rotating body 41 can be improved and the rotational vibration can be reduced. . In addition, since the amount of resin used is small, the cost of the product can be reduced.

(Fifth Embodiment) FIG. 10 is a perspective view of a rotary brush according to a fifth embodiment, FIG. 11 is a sectional view taken along line AA of FIG.
2 is a sectional view taken along the line BB in FIG. As shown in FIGS. 10 to 12, the rotary brush of the suction opening body of the present embodiment has divided pieces 43a,
A projection 66 as a cleaning body is integrally formed on the outer surface of 43b. The protruding body 66 is formed to project in a substantially U shape,
Four rotators 41 are provided at positions that are divided into four in the axial direction and are shifted by 90 degrees along the axial direction. At this time, the divided pieces 43a and 43b are formed so that no gap is formed when they are combined.

In the conventional rotary brush, since the projections are formed in a continuous band, the carpet cannot be effectively hit. However, in this embodiment, the carpet is hit four times in one rotation. In other words, the carpet is vibrated, and the dust is lifted up, so that the carpet can be effectively cleaned.

As described above, by forming the projection 66 integrally with the divided pieces 43a and 43b, the brush bristles 21 of the first embodiment become unnecessary, and the cost can be reduced by reducing the number of parts.

(Sixth Embodiment) FIG. 13 is an exploded perspective view of a rotary brush according to a sixth embodiment, FIG. 14 is a partially cutaway front view of the rotary brush, and FIG. 15 is a cross-sectional view taken along line CC of FIG. As shown in FIG. 13, the rotary brush of the suction port body of the present embodiment includes a rotary body 41.
A ring-shaped wheel 67 is externally fitted to an end of the wheel 67, and a key groove which is an engaging portion 68 that engages with the wheel 67 is provided at both ends of one of the divided pieces 43a. A key which is the engaged portion 69 with respect to the key groove 68 is provided in a protruding manner. As shown in FIGS. 14 and 15, the wheel 67 is fixed by fitting the key 69 into the key groove 68 of the divided piece 43a and attaching the support 12 from the outside thereof.
Other configurations are the same as in the first embodiment.

As described above, the key groove 6 is formed on the divided piece 43a.
By forming 8 at the same time as injection molding, post-processing by a machine or the like for forming a mounting portion for mounting a conventional wheel becomes unnecessary, and the cost of the product can be reduced.

(Seventh Embodiment) FIG. 16 is a sectional view of an end portion of a rotary brush according to a seventh embodiment, and FIG. 17 is a sectional view taken along line DD of FIG. The rotary brush of the suction opening body of the present embodiment is shown in FIGS.
As in 7, a play is provided between the wheel 67 and the rotating body 41 in the circumferential direction. That is, the circumferential width of the key groove 70 of the divided piece 43a is formed to be about 1.5 times or more the width a of the key 69 of the wheel 67, and the wheel 67 is
Is movable in the circumferential direction within the range. Other configurations are the same as in the sixth embodiment.

When cleaning, the suction port 4 is placed on the floor, and the wheels 67 abut on the floor. When the rotating brush is rotated, the rotating body 41 immediately rotates, but the wheel 67 cannot rotate immediately due to friction with the floor surface. After being absorbed by the play, the wheel 67 rotates together with the rotating body 41. Therefore, a load is not applied to the drive motor 16 at the time of starting, and the rotating brush rotates smoothly.

(Eighth Embodiment) FIG. 18 is an exploded perspective view of a rotary brush according to an eighth embodiment, FIG. 19 is a cross-sectional view of the end of the rotary brush, and FIG. 20 is a cross-sectional view taken along line EE of FIG. As shown in FIG. 18, in the rotary brush of the suction opening body of this embodiment, the ends of the divided pieces 43a and 43b are formed to be thick, and the thick portions 71a and 71b are connected to the wheel by being annularly continuous. Become.
When the divided pieces 43a and 43b are joined and integrated into a cylindrical shape, the wheels 71a and 71b are simultaneously integrated and function as the wheels 71a and 71b. Other configurations are the same as in the first embodiment.

As described above, since the wheels 71a, 71b divided into the divided pieces 43a, 43b are integrally formed, wheels as separate parts are not required, and cost reduction by reducing parts is possible.

(Ninth Embodiment) FIG. 21 is an exploded perspective view of a rotary brush according to a ninth embodiment. In the rotary brush of the suction opening body of this embodiment, as shown in FIG. 21, the support 12 is integrally formed at both ends of one of the divided pieces 43a. Then, a mountain-shaped tooth 55 is simultaneously formed on the outer peripheral surface of the support body 12 on one side, and the support shaft 52 is simultaneously mounted by insert molding. Other configurations are the same as in the first embodiment.

As described above, since the support 12 is formed integrally with the divided piece 43a, the mounting operation is not required.
Since the number of parts can be reduced, cost can be reduced. In addition, since the support shaft 52 can be formed integrally and the mounting portion 56 does not need to be formed, the operation process can be further simplified.

(Tenth Embodiment) FIG. 22 is an exploded perspective view of a rotary brush according to a tenth embodiment. As shown in FIG. 22, the rotary brush of the suction port body of the present embodiment has one end of each of the divided pieces 43a and 43b formed to be thick, and the thick portions 72a and 72b are annularly continuous to form a driving force transmitting portion. Pulley. When the divided pieces 43a, 43b are joined and integrated into a cylindrical shape, the pulleys 72a, 72b are simultaneously integrated into the pulleys 72a, 72b. The support shaft 52 is simultaneously mounted on one of the divided pieces 43a by insert molding, and the holder 53 is fitted to both ends of the divided pieces 43a and 43b.

As described above, since the pulleys 72a and 72b are formed integrally with the respective divided pieces 43a and 43b, a flat belt can be used instead of the timing belt 17, and the angled teeth 55 of the holder 53 are eliminated. One kind of holder 5
3 can be used, so that the number of parts can be reduced and the work process can be simplified, and the cost of the product can be reduced.

It should be noted that the present invention is not limited to the above-described embodiment, and it goes without saying that many modifications and changes can be made to the above-described embodiment within the scope of the present invention.

For example, in the first embodiment, the cleaning body 42
Described above, the brush bristles 21 and the brush bristles 21 are attached, but the brush bristles 21 may be directly implanted in the rotating body 41 or a blade made of rubber or the like may be used. Also,
The joining means 44 of the divided pieces 43a and 43b
The ribs 51a and 43b may be brought into contact with each other and joined by ultrasonic welding or an adhesive. Or split piece 4
The support 12 fitted to both ends of 3a, 43b may be used as the joining means 44. Further, the mounting portion 56 may be divided symmetrically about the axis and formed on the respective divided pieces 43a and 43b.

In the fourth embodiment, the divided pieces 43
Although the holes 65 for meat stealing are provided in a and 43b, they may be recessed.

In the eighth embodiment, the wheels 71
Although a and 71b are divided and formed integrally with the divided pieces 43a and 43b, they may be formed integrally with one divided piece without being divided. Further, the wheels 71a and 71b may be double-molded with a soft material.

The support 12 of the ninth embodiment may be divided and formed integrally with each of the divided pieces 43a and 43b.

Further, the divided pieces 43a and 43b are not limited to two and may be divided into a plurality. Also, it does not have to be twisted.

[0063]

As apparent from the above description, according to the present invention, a plurality of divided pieces formed by injection molding, its
Attachment parts to attach support at both ends of one split piece
Because they are integrally formed, the shaft offset at both ends of the rotating body
No centering of the rotating brush
be able to. Since the divided pieces are integrated by screwing or bonding, the thickness of the divided pieces can be made uniform. Therefore, it is possible to reduce the weight and realize a well-balanced rotating body, thereby preventing poor rotation and vibration during rotation. Here, when the ribs on the inner surfaces of the divided pieces are engaged and bonded, work such as screwing becomes unnecessary, and the number of work steps can be reduced, and assembling becomes easy.

Further, the through-holes and screw holes of the joining means, the support and the mounting portion, the protrusions and the wheels, and the engaging portions when the wheels are separately mounted can be formed at the same time when the divided pieces are formed. In addition, it is not necessary to form an attachment portion or the like by machining, so that the labor of the operator can be reduced, the number of work steps and the number of parts can be reduced, and the cost of the product can be reduced.

Since the balance weight is provided on the inner surface of the rotating body or the liquid is sealed in the wheel, the imbalance of the rotating body can be eliminated by the inertia moment generated during rotation. In addition, since the rotatable body is lightened and the moment of inertia can be reduced by the hole or the recess for the stealing of the divided pieces, the rotational balance of the rotatable body is improved, and the rotational vibration can be reduced. In addition, the amount of resin used can be reduced. As described above, since it can be realized simply and inexpensively, it is possible to reduce the cost, and it is not necessary to provide unnecessary protrusions and to make the appearance of the rotating body uncomfortable compared to a case where a balance weight or the like is attached to the outer surface of the rotating body. There is no.

In addition, due to the play between the engaging portion and the engaged portion when the wheels are mounted, the rotating body rotates together with the wheels at the time of starting rotation, so that the load on the driving source of the rotating body can be reduced. There is such an excellent effect.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of a rotary brush of a suction port body according to a first embodiment of the present invention.

FIG. 2 is a cross-sectional view of the rotating brush according to the first embodiment.

FIG. 3 is a perspective view of the rotary brush.

FIG. 4 is a perspective view of a suction port body.

FIG. 5 is an exploded perspective view of a rotating brush according to a second embodiment.

FIG. 6 is a perspective view of a rotating brush according to a third embodiment.

FIG. 7 is a partial sectional view of the rotary brush.

FIG. 8 is a perspective view of a rotating brush according to a fourth embodiment.

FIG. 9 is a sectional view of the rotary brush.

FIG. 10 is a perspective view of a rotary brush according to a fifth embodiment.

11 is a sectional view taken along the line AA in FIG. 10;

FIG. 12 is a sectional view taken along line BB of FIG. 10;

FIG. 13 is an exploded perspective view of a rotating brush according to a sixth embodiment.

FIG. 14 is a partially broken front view of the rotary brush.

15 is a sectional view taken along the line CC in FIG.

FIG. 16 is a cross-sectional view of a rotating brush end according to a seventh embodiment.

17 is a sectional view taken along line DD of FIG. 16;

FIG. 18 is an exploded perspective view of the rotating brush according to the eighth embodiment.

FIG. 19 is a sectional view of the end of the rotary brush.

20 is a sectional view taken along line EE of FIG. 19;

FIG. 21 is an exploded perspective view of a rotating brush according to a ninth embodiment.

FIG. 22 is an exploded perspective view of a rotating brush according to a tenth embodiment.

FIG. 23 is a cross-sectional view of a suction port body of a conventional vacuum cleaner.

FIG. 24 is a longitudinal sectional view of the suction port body.

FIG. 25 is a front view of a conventional rotating brush.

FIG. 26 is a sectional view of the rotary brush.

FIG. 27 is a perspective view of another conventional rotary brush.

FIG. 28 is a sectional view of the rotary brush.

FIG. 29 is a perspective view of another conventional rotary brush.

FIG. 30 is a sectional view of the rotary brush.

FIG. 31 is an exploded perspective view of another conventional rotary brush.

FIG. 32 is a partially broken front view of the rotary brush.

FIG. 33 is a sectional view taken along line FF of FIG. 32;

FIG. 34 is an exploded perspective view of another conventional rotary brush.

FIG. 35 is a sectional view of the end of the rotary brush.

36 is a sectional view taken along line GG of FIG. 35.

FIG. 37 is a sectional view of a conventional rotating body.

[Explanation of symbols]

 4 Suction port body 12 Support body 41 Rotating body 42 Cleaning body 43a, 43b Split piece 44 Joining means 47 Through hole 48 Screw hole 50 Screw 51 Rib 56 Mounting portion 60 Balance weight 61 Wheel 64 Water 65 Meat stealing hole 66 Projection 67 Wheel 68 Key groove 69 Key 71a, 71b Wheel 72a, 72b Pulley

──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Kazuo Glazu 22-22, Nagaike-cho, Abeno-ku, Osaka-shi, Osaka Inside Sharp Corporation (72) Inventor Mikio Yagi 22-22, Nagaike-cho, Abeno-ku, Osaka-shi, Osaka Sharp shares In-company (72) Inventor Koji Ninomiya 22-22 Nagaikecho, Abeno-ku, Osaka-shi, Osaka Sharp Corporation (56) References JP-A-1-160518 (JP, A) JP-A-60-21726 (JP, A JP-A-59-225030 (JP, A) JP-A-5-146382 (JP, A) JP-A-4-193139 (JP, A) JP-A-2-65828 (JP, A) JP-A-62 155812 (JP, A) JP-A-1-265927 (JP, A) JP-A-62-155812 (JP, A) JP-A-53-127766 (JP, U) JP-A-61-157459 (JP, U) 62-101463 (JP, U) (58) Survey The field (Int.Cl. ^7, DB name) A47L 9/04

Claims (16)

(57) [Claims] 1. A rotary body having a suction port body and a rotary body rotatably supported at both ends via a support, and a cleaning body provided along an axial direction on an outer peripheral surface of the rotary body. Is composed of a plurality of divided pieces divided along the axial direction, and the divided pieces are cylindrically integrated by joining means.
In the brush, the support member is provided at both ends of one divided piece forming the rotating body.
A rotary brush for a suction port body, wherein a mounting portion for mounting the body is formed integrally . 2. A rotary brush for a suction opening body according to claim 1, wherein a cleaning body is mounted between adjacent divided pieces. 3. The suction device according to claim 1, wherein the joining means inserts a screw into a through hole formed in the divided piece and a screw hole formed in the opposing divided piece and screws the screw. Mouth rotating brush. 4. The rotary brush according to claim 1, wherein the joining means engages and bonds the ribs formed on the inner surfaces of the divided pieces. 5. A cleaning body, the rotary brush of the suction port body according to claim 1, characterized in that it is a protrusion formed integrally on the outer peripheral surface of the split piece. 6. The support is formed integrally with one divided piece.
Rotating brush of the suction port body according to claim 1, wherein the kite. 7. The rotary brush of the suction port body according to claim 6, wherein the outer surface of the support is a driving force transmitting portion. 8. The rotary brush for a suction port body according to claim 1, wherein a hole or a recess is formed in the divided piece for a steal. 9. The rotary brush for a suction port body according to claim 1, wherein a balance weight is attached to an inner surface of the rotary body. 10. The suction port rotating brush according to claim 1, wherein a hollow wheel is provided at an end of the rotating body, and a liquid is injected and sealed in the wheel. Rotating brush. 11. The rotary brush of the suction port body according to claim 1, wherein the wheel is provided at an outer peripheral end of the rotary body.
To be engaged with the engaging portion formed at the end of the divided piece.
Portion is formed, and the engaged portion engages the divided piece.
A rotary brush for the suction opening body, wherein the rotary brush is engaged with the portion . 12. The suction brush according to claim 11 , wherein a play is provided in a circumferential direction between the engaged portion of the wheel and the engaging portion of the rotating body. Mouth rotating brush. 13. The rotary brush of the suction opening body according to claim 1, wherein a wheel is provided at an end of the rotary body, and the wheel is formed integrally with or divided into one divided piece. A rotary brush for a suction opening body, characterized in that it is made. 14. A rotary brush for a suction opening according to claim 1.
, A wheel is provided at the end of the rotating body, and the wheel is
The book is divided into pieces or divided into pieces,
Is a rotary brush of a suction port body, which is formed by a double molding using different soft materials . 15. The rotating device according to claim 1, wherein the divided piece is rotated about an axis of the rotating body.
2. The device as claimed in claim 1, wherein the device is formed by being twisted in the rolling direction.
15. The rotating brush of the suction opening body according to any one of the items 14 to 14 . 16. divided piece rotary brush of the suction port body of any one the serial <br/> mounting of claims 1 to 15, characterized in that it is formed by injection molding.