JP2000254596A - Rotary brush type cleaning tool - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make the inclination of a cleaning brush variable in a cleaning tool in which the brush is rotated by water pressure. SOLUTION: In a cleaning tool, a rotary head 4 is fitted to the tip of a grip shaft 2 through a head receiver 3, and a cleaning brush 7 is attached to the head 4. The head 4 comprises a semi-spherical part 5, a main body part 6 having a rotation driving mechanism, and the brush 7 connected to the mechanism. A positioning mechanism 10 for holding the head 4 at a prescribed or optical position is installed between the head receiver 3 and the head 4. Since the rotation axis V of the head receiver 3 and the rotation axis X of the head 4 are arranged to be non-parallel, and the rotation axis X the rotation axis Y of the head receiver 3 are arranged in non-parallel, by adjusting the rotational quantities of the head receiver 3 and the head 4, the angle of the brush 7 to the grip shaft 2 can be changed. Accordingly, the inclination of the cleaning brush can be set up in an optimum state corresponding to an object to be cleaned.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement of a rotary brush type cleaning tool for rotating a cleaning brush provided at a tip end of a grip shaft connected to a hose by water pressure.

[0002]

FIG. 9 shows a conventional rotary brush type cleaning tool 50.
FIG. In the illustrated rotary brush type cleaning tool 50, a head 53 is provided at the tip of a grip shaft 52 to which a hose 51 is connected, and a brush 54 is rotatably provided on the head 53. The head unit 53 has a built-in rotation drive mechanism for rotating the brush 54 by water pressure, and the brush 54 is attached to an output shaft thereof.
The rotary drive mechanism includes, for example, a nozzle for ejecting supplied water, an impeller rotationally driven by the water pressure of the water ejected from the nozzle, a speed reducer connected to a rotating shaft of the impeller, and the like. The rotating brush-type cleaning tool 50 having the above-described configuration supplies water supplied from the hose 51 to the head unit 53 through a water passage in the grip shaft 52, and the brush is driven by the rotation driving mechanism using water pressure in the head unit 53. 54
It is used for cleaning bathrooms and the like.

[0003]

In the conventional rotary brush type cleaning tool 50, since the head portion 53 is fixed at a fixed angle with respect to the grip shaft 52, the brush 54 can be skillfully used depending on a portion to be cleaned. May not be applied.

[0004]

SUMMARY OF THE INVENTION The present invention provides a rotary brush-type cleaning tool capable of changing the angle of a brush. The feature of the cleaning tool will be described with reference to FIG. A gripping shaft, a head holder 3 attached to the distal end of the gripping shaft 2, a rotary head 4 rotatably mounted on the head receiver 3, and a rotary head provided on the rotary head 4 and driven to rotate by water pressure. Cleaning brush 7
The rotation axis X of the rotary head 4 with respect to the head holder 3 is configured to be non-parallel to the longitudinal direction of the grip shaft 2, and the rotation axis X of the rotary head 4 with respect to the head holder 3 is The rotation axis Y of the cleaning brush 7 with respect to the rotary head 4 is non-parallel.

[0005] In the rotary brush type cleaning tool, it is desirable that the head receiver 3 is rotatably mounted about an axis V at the tip end of the grip shaft 2.

Further, in the above rotary brush type cleaning tool,
It is desirable to provide a positioning mechanism 10 that can hold the rotational position of the rotary head 4 with respect to the head holder 3 at a predetermined position or an arbitrary position.

[0007]

FIG. 1 shows an embodiment of a rotary brush type cleaning tool (hereinafter referred to as the cleaning tool of the present invention) according to the present invention. In the cleaning tool 1 of the present invention, a rotary head 4 is attached to a distal end of a grip shaft 2 having a water passage therein and a connecting portion 2a for a water supply hose provided at a base end thereof via a head receiving device 3. A cleaning brush 7 is provided on the head 4. The head holder 3 is fixed or rotatable with respect to the grip shaft 2, the rotary head 4 is rotatable with respect to the head holder 3, and the cleaning brush 7 is driven to rotate with respect to the rotary head 4. It has been done. An opening / closing switch 8 for a water passage is provided at an appropriate position of the grip shaft 2 (for example, a side surface near the tip illustrated).

As shown in FIG. 2, the grip shaft 2 of this embodiment
Is formed to be slightly curved, and the angle formed between the axis W at the base and the axis V at the tip is about 10 to 2
It is set to about 0 °. The head holder 3 attached to the tip of the grip shaft 2 has a water passage 3a continuous from the grip shaft 2 inside. Head holder 3
To be rotatably mounted on the shaft 2
The rotation axis is the axis V at the tip of the grip shaft 2.

A rotary head 4 rotatably mounted on the head receiver 3 is connected to a hemispherical portion 5, a main body portion 6 having a built-in rotary drive mechanism using water pressure as a drive source, and an output shaft of the rotary drive mechanism. And a cleaning brush 7.
The means for rotatably attaching the rotary head 4 to the head receiver 3 has a structure shown in FIG. 4, for example. As shown in the figure, a concave sliding contact surface 3b is formed in the head receiving member 3 so as to abut a part of the hemispherical portion 5 of the rotary head 4, and a water passage 3a is formed at the center of the sliding contact surface 3b. The holding shaft 3c having a projection is provided. On the other hand, a communication hole 5a is formed in the hemispherical portion 5 of the rotary head 4 in a direction slightly inclined from the center line, and a cavity 5b opening to the lower surface side is formed following the communication hole 5a. Then, the holding shaft 3c is inserted into the communication hole 5a of the hemispherical portion 5 to protrude toward the gap 5b, and the nut-shaped head retainer 9 is screwed into the male screw portion of the holding shaft 3c to be tightened. 4 is rotatably attached to the head receiver 3.

A positioning mechanism 10 is provided between the head holder 3 and the rotary head 4 for holding the rotary position of the rotary head 4 at a predetermined position or an arbitrary position. As shown in FIG. 4, the positioning mechanism 10 in the present embodiment includes:
A recess 3d is formed at an appropriate position on the sliding contact surface 3b of the head receiver 3, and an elastic body 11 such as a rubber body or a spring and a ball body 12 are housed in the recess 3d. The ball body 12 is shown in FIG. As described above, the recess 5c formed in the hemispherical portion 5 of the rotary head 4
Alternatively, it is fitted into the groove 5d in a biased state. FIG.
As shown in (A), when the dents 5c are formed at appropriate intervals in the hemispherical portion 5, the rotary head 4 is held at a predetermined position where the ball body 12 matches the dent 5c.
Is rotated by a predetermined angle. That is, FIG.
In this case, the rotational position of the rotary head 4 can be adjusted step by step by 45 degrees.

When the biasing force of the elastic body 11 is sufficiently strong, the rotary head 4 can be held at an arbitrary rotational position by forming a groove 5d in the hemispherical portion 5 as shown in FIG. It becomes possible. As a means for exerting a strong urging force on the positioning mechanism 10, a structure as shown in FIG. 6 can be considered. The positioning mechanism 10 has a substantially cylindrical holder 13 attached to the head receiver 3, and a projection 14 projecting toward the hemispherical portion 5 of the rotary head 4 in the holder 13.
An elastic body 15 such as a spring for urging the projection 14 and an adjusting bolt 16 for adjusting the urging force of the elastic body 15 are housed therein. The holding state of the rotary head 4 can be changed by increasing or decreasing the compression ratio of the elastic body 15 by screwing or retracting the adjusting bolt 16. That is, when the urging force of the elastic body 15 is weakened to reduce the pressing force of the projection 14 against the hemispherical portion 5, the rotary head 4 can be rotated around the axis with almost no resistance. When the urging force of the elastic body 15 is slightly increased and the pressing force of the projection 14 is set to a medium level, the rotary head 4 receives an appropriate resistance in the rotating direction, and can be held at a desired position. Elastic body 15
When the urging force is increased and the pressing force of the projection 14 is extremely increased, the rotation of the rotary head 4 is prevented, so that the rotary head 4 can be fixed at a desired position. Thus, the hemisphere 5
By forming a groove 5d as shown in FIG. 5B and employing the positioning mechanism 10 shown in FIG. 6, the rotary head 4 can be held at an arbitrary rotation position.

The rotary drive mechanism of the cleaning brush 7 built in the main body 6 of the rotary head 4 has a structure as shown in FIGS. 7 and 8, for example. A cylindrical portion 5e is provided on the lower surface side of the hemispherical portion 5.
A shaft plate 21, a spacer 23, an impeller 22, and a speed reducer 25 are arranged from above in the inside thereof, and a cover tube 24 with a cushion material k, k is provided on the outer surface of the cylindrical portion 5 e. These are fitted and integrated with the cylindrical portion 5e by a pressing member 26 screwed to the cylindrical portion 5e. As shown in FIG. 8, the nozzle portion 23 for jetting the supplied water toward the impeller 22 is provided on the spacer 23.
a and a discharge portion 23b of the jetted water are formed.

The rotating shaft 22a of the impeller 22 (see FIG. 7)
Is connected to the input side of the speed reducer 25. Reducer 25
As an example of the structure of the first embodiment, the first planetary gear 31 is engaged with the first sun gear 30 serving as an input unit, and the rotation shaft 32 of the first planetary gear 31 is attached to the second sun gear 33. Have been. The rotation shaft 35 of the second planetary gear 34 meshed with the second sun gear 33 is attached to the output gear 36, and the rotation shaft of the output gear 36 is connected to the output shaft 37 of the speed reducer 25. Has become. These gears are housed in a gear box 38. The cleaning brush 7 is attached to the output shaft 37 of the speed reducer 25 via a brush coupler 39. When water is jetted from the nozzle 23a and the impeller 22 is rotated by the water pressure, the impeller 22
After the rotational driving force is input to the speed reducer 25 and decelerated, the cleaning brush 7 is rotationally driven via the brush coupler 39 attached to the output shaft 37.

In the cleaning tool 1 of the present invention, the rotation axis X of the rotating head 4 with respect to the head holder 3 is set to be non-parallel to the longitudinal direction of the gripping shaft 2 and provided on the rotating axis X and the rotating head 4. The rotation axis Y of the cleaning brush 7 is not parallel. Here, that the rotation axis X of the rotary head 4 is non-parallel to the longitudinal direction of the grip shaft 2 means that the grip shaft 2 is formed to be slightly curved as shown in FIG. It is sufficient that the rotation axis X is non-parallel to a tangent at an arbitrary point on the curve C passing through the center of the curve C. With this configuration, the cleaning tool 1 of the present invention, for example, in the illustrated example, rotates the rotating head 4 in the state of FIG.
When rotated by 80 degrees, the inclination of the cleaning brush 7 is as shown in FIG. Therefore, the cleaning tool 1 of the present invention can appropriately adjust the inclination of the cleaning brush 7 in the state between FIGS. 2 and 3.

Further, the head receiving member 3 is held by the grip shaft 2
On the other hand, when the tip end can be rotated about the axis V, the amount of rotation of the head holder 3 with respect to the grip shaft 2 and the amount of rotation of the rotary head 4 with respect to the head holder 3 are variously adjusted. The inclination of the cleaning brush 7 with respect to the grip shaft 2 can be changed more variously and subtly. In addition, in this embodiment, the grip shaft 2
Is slightly curved, the angle of the cleaning brush 7 can be finely changed also by changing the position where the operator grips the grip shaft 2.
As described above, the cleaning tool 1 of the present invention can be used for the head receiver 3 according to the inclination of the surface to be cleaned and the distance and height from the worker.
And / or by simply rotating the rotary head 4 by an appropriate angle,
Furthermore, the cleaning brush 7 can be easily brought into contact with the surface to be cleaned simply by appropriately adjusting the gripping position of the grip shaft 2, so that the cleaning operation efficiency is significantly improved. For example, as in the case of the inner surface of a bathtub, a cleaning brush 7 is used in a conventional cleaning tool.
When it is difficult to properly apply the cleaning brush, even if the shaped portion is to be cleaned, the cleaning device 1 of the present invention can reliably contact the cleaning brush, and at the time of cleaning work, it is impossible for the operator to do so. You do not have to force your posture.

Rotation axis V of head holder 3, rotation head 4
The relationship between the rotation axis X and the rotation axis Y of the cleaning brush 7 is not particularly limited. For example, the angle between the rotation axis V and the rotation axis Y in the standard state shown in FIG.
The rotation axis V in the half-rotation state shown in FIG.
And the rotation axis Y are set to be about 160 to 180 °, the angle of the cleaning brush 7 with respect to the grip shaft 2 can be adjusted to an arbitrary angle within a range of about 90 to 180 °. Can be. In addition, the cleaning brush 7 can be directed in an arbitrary direction depending on the combination of the rotation amounts on the rotation axes V, X, and Y.

Although the grip shaft 2 is slightly curved in the illustrated example, it does not hinder a straight rod shape.

The cleaning tool 1 of the present invention in the illustrated embodiment is shown.
Integrates a water passage formed inside each of the grip shaft 2, the head holder 3, and the rotary head 4. For this reason, the cross-sectional area of the water passage, particularly the cross-sectional area of the water passage in the rotary head 4 can be ensured large, and the pressure loss is reduced. Further, there is an advantage that even if the rotary head 4 is rotated with respect to the grip shaft 2, there is no possibility of increasing the pressure loss.

[0019]

According to the cleaning tool of the present invention, the rotating shaft of the rotary head is set non-parallel to the longitudinal direction of the grip shaft, and the cleaning brush provided on the rotary shaft of the rotary head and the rotary head. The rotation axis of the cleaning brush is made non-parallel, so that the angle of the cleaning brush with respect to the grip shaft can be changed in various ways by appropriately adjusting the rotation amount of the rotary head. Therefore, the inclination of the cleaning brush can be easily set to an optimum state according to various situations of the cleaning operation, so that workability is greatly improved. In addition, the operator is not forced to work in an unreasonable posture.

In the cleaning tool according to the second aspect of the present invention, the head holder is rotatable with respect to the grip shaft, so that the cleaning amount can be variously combined with the rotation amount of the head receiving member and the rotating head. The inclination of the brush can be adjusted more variously and subtly, and the workability can be further improved.

The cleaning tool according to the third or fourth aspect of the present invention is provided with a positioning mechanism for holding the rotating position of the rotary head at a predetermined position or an arbitrary position, so that the angle of the cleaning brush is set at a preset angle or at an arbitrary position. Since it can be held at an angle, various parts can be easily cleaned. In other words, in the case where the cleaning portion includes the surface to be cleaned having various gradients, the cleaning tool of the present invention can select an optimum angle of the cleaning brush according to the surface to be cleaned. is there.

[Brief description of the drawings]

FIG. 1 relates to an embodiment of the cleaning tool of the present invention, wherein FIG. 1 (A) is a plan view showing the whole, and FIG. 1 (B) is a side view showing the whole.

FIG. 2 is a side view of a cleaning tool according to an embodiment of the present invention, showing a head receiving tool in cross section.

FIG. 3 is a side view of a cleaning tool according to an embodiment of the present invention, showing a state in which a rotary head is rotated by 180 degrees and a cross section of a head holder.

FIG. 4 is a cross-sectional view related to one embodiment of the cleaning tool of the present invention, showing a mounting structure of a rotary head.

5 (A) is a plan view showing a hemispherical portion of a rotary head provided with a depression, and FIG. 5 (B) is a plan view of a rotary head provided with a groove, according to an embodiment of the cleaning tool of the present invention. It is a top view which shows a hemisphere part.

FIG. 6 relates to one embodiment of the cleaning tool of the present invention, and is a cross-sectional view showing an example of a rotary head positioning mechanism.

FIG. 7 relates to an embodiment of the cleaning tool of the present invention, and is a cross-sectional view showing an example of a rotary drive mechanism of the cleaning brush.

FIG. 8 relates to one embodiment of the cleaning tool of the present invention, and is a cross-sectional view taken along line (C)-(C) of FIG.

FIG. 9 is a side view showing an example of a conventional rotary brush type cleaning tool.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... The cleaning tool of this invention 2 ... Grip shaft 3 ... Head holder 3a ... Water passage 3b ... Sliding contact surface 4 ... Rotating head 5
... hemispherical part 6 ... body part 7 ... cleaning brush 10 ... positioning mechanism C ... line connecting the central part of the gripping shaft V ... axis V at the tip of gripping shaft 2 (rotation axis of head holder) W ... base of gripping shaft Axis on the side X: Rotary axis of rotary head Y: Rotary axis of cleaning brush

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Osamu Sato, Inventor 80, Higashi-nogiri, Shimono-no-Ishiki-cho, Nakagawa-ku, Nagoya City, Aichi Prefecture (72) Inventor Katsuhiro Nakamura 1-7-1, Shimojo-cho, Kasugai-shi, Aichi Corp Higashitsu B102 F term (reference) 3B116 AA31 AB52 BA02 BA13 3B202 AA21 AB15 BA01 BC01 BD06 BE02 DA06 DA08 FA18 FB10

Claims (4)

[Claims] 1. A grip shaft connected to a hose, a head receiver attached to a distal end of the grip shaft, a rotary head rotatably mounted on the head receiver, and a rotary head provided on the rotary head. A cleaning brush rotatably driven by water pressure, wherein a rotation axis of the rotary head with respect to a head holder is non-parallel to a longitudinal direction of the grip shaft, and a rotation axis of the rotary head with respect to the head holder. And a rotary shaft of the cleaning brush with respect to a rotary head is configured to be non-parallel. 2. The rotary brush-type cleaning tool according to claim 1, wherein the head receiver is rotatably mounted around an axis at a tip end of the grip shaft. 3. The rotary brush type cleaning tool according to claim 1, further comprising a positioning mechanism for holding a rotation position of the rotary head with respect to the head holder at a predetermined position. 4. The rotary brush type cleaning tool according to claim 1, further comprising a positioning mechanism capable of holding a rotary position of the rotary head with respect to the head holder at an arbitrary position.