JP2002325710A - Vacuum cleaner - Google Patents

Abstract

(57) [Summary] [PROBLEMS] To provide a vacuum cleaner capable of operating a handle with a small force. SOLUTION: This vacuum cleaner includes a rotary brush 20 rotatably provided at a tip of a pipe 11, and a grip 12 provided at a rear portion of the pipe 11, wherein a motor 14 is provided on the grip 12, A shaft 13 rotated by the motor 14 is provided in the pipe 11, and the rotation of the shaft 11 causes the rotating brush 20 to rotate.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vacuum cleaner for cleaning, for example, a bathroom or a bathtub.

[0002]

2. Description of the Related Art Conventionally, a vacuum cleaner shown in FIG. 9 has been known. In such a vacuum cleaner, a driving unit 2 is provided at a distal end of a pipe 1, and the driving unit 2 includes a motor 3 and a reduction gear box 4.
Are provided. A rotary brush 5 rotated by a motor 3 is provided below the drive unit 2.
A handle 6 is provided at the rear of the pipe 1, and a power switch 7 for turning on and off the motor 3 is provided on the handle 6.

[0003]

By the way, in such a vacuum cleaner, since a motor and a reduction gear box 4 are provided at the end of the pipe 1, the handle 6 is operated, for example, to rotate the rotary brush. When moving the handle 5 in the left-right direction, a large force is required to operate the handle 6 in proportion to the length from the distal end of the pipe 1 to the handle 6, and there is a problem that the usability is very poor.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a vacuum cleaner capable of operating a handle with a small force.

[0005]

According to a first aspect of the present invention, there is provided a rotating brush provided rotatably at a tip of a pipe, and a handle provided at a rear portion of the pipe. In the vacuum cleaner, a motor is provided on the handle, a shaft rotated by the motor is provided in the pipe, and the rotating brush is rotated by rotation of the shaft.

According to a second aspect of the present invention, the pipe has a first pipe and a second pipe inserted into the first pipe so as to be able to move forward and backward. The length is configured to be arbitrarily fixed, the shaft has a first shaft rotatably held in a first pipe and a second shaft rotatably held in a second pipe, The rotational force of the first shaft is transmitted to the second shaft regardless of the length of the second pipe protruding from the tip of the first pipe.

According to a third aspect of the present invention, one of the first shaft and the second shaft is constituted by a pipe member, and the other is inserted into the pipe member so as to advance and retreat, and a groove is formed in the pipe member along the axial direction. And a projection inserted into the groove is provided on the other side.

According to a fourth aspect of the present invention, one of the first shaft and the second shaft is constituted by a pipe member, and the other is capable of moving in and out of the pipe member and the other being unable to rotate relative to the pipe member. It is characterized by being formed.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a vacuum cleaner according to the present invention will be described below with reference to the drawings. [First Embodiment] A vacuum cleaner 10 shown in FIG.
A cylindrical handle 12 provided at the rear of the pipe 11, a shaft 13 rotatably held in the pipe 11 along the axial direction, and rotation of the shaft 13 provided at the tip of the pipe 11. And a brush portion 21 having a rotating brush 20 that rotates.

As shown in FIG. 2, a DC motor 14 and a reduction gearbox 15 are disposed in the handle portion 12, and the motor 14 and the reduction gearbox 15 are connected to the handle portion 12 via a bracket (not shown). Fixed. As shown in FIG. 1, the handle 12 is provided with a switch S, and the operation of the switch S drives or stops the motor 14.

When the motor 14 is driven, a drive shaft (not shown) of the reduction gear box 15 rotates, and the shaft 13 rotates by the rotation of the drive shaft. Reference numeral 16 denotes a power cord.
6 is connected to a 100 V outlet (not shown) via an AC adapter (not shown).

As shown in FIG. 3, the brush portion 21 includes a disk-shaped substrate 22, a rotating brush 20 rotatably mounted below the substrate 22, and a rotating shaft 2 of the rotating brush 20.
3 and a universal joint 24 connecting the shaft 13 and the like. The rotating brush 20 is constituted by a bristle brush, but may be constituted by a sponge.

A pair of brackets 25 are provided on the upper surface of the substrate 22 at a predetermined interval, and the bracket 25 has a U-shaped connecting member 2 provided at the tip of the pipe 11.
Six legs 27 are pivotally supported. The pipe 11 can be tilted in the front-rear direction about the shaft 28.

The shaft 13 is a universal joint 2
Since the pipe 11 is connected to the rotating shaft 23 of the rotating brush 20 via 4, the rotation of the rotating brush 20 is not hindered even if the pipe 11 is tilted in the front-back direction.

Next, the cleaner 10 constructed as described above is used.
The operation of will be described.

When the switch S is turned on by grasping the handle portion 12 with a hand, the motor 14 is driven and the reduction gear box 1 is turned on.
The shaft 13 rotates via 5. Shaft 13
The rotation of the rotary brush 20 rotates via the universal joint 24. By rotating the rotary brush 20, for example, a bathtub or a bathroom is cleaned.

At this time, even if the rotary brush 20 is moved in the left-right direction by operating the handle portion 12, the operation of the handle portion 12 is performed because the motor 14 and the reduction gear box 15 are provided on the handle portion 12. A small force is sufficient, the operability of the handle 12 is very good, and the vacuum cleaner 10 is very easy to use. [Second Embodiment] FIG. 4 shows a cleaner 30 according to a second embodiment. The cleaner 30 has a handle 31 at the rear.
And a second pipe 3 that can be housed and pulled out in the distal end of the first pipe 32.
3, a tip case 34 provided at the tip of the second pipe 33, two rotating brushes 35A and 35B rotatably provided below the tip 34, and a first pipe 32. The first held rotatably along the axial direction
It has a shaft 36 (see FIG. 5), a second shaft 37 and the like which are rotatably held in the second pipe 33 along the axial direction.

As in the first embodiment, a motor 14 and a reduction gear box 15 are built in the handle portion 31. The first shaft 36 is rotated by the motor 14 via the reduction gear box 15. It is going to go.

At the rear of the second pipe 33, the first pipe 3
A lock mechanism 40 for fixing the second pipe 33 is provided at a position where the second pipe 33 protrudes by a desired length from the distal end of the second pipe 33. The lock mechanism 40 is connected to the second pipe 3
3 and a cylindrical body 41 fixed to the rear end,
And a block 42 disposed between the pipe 32. The first pipe 32 is movable vertically (in FIG. 5) with respect to the block 42.

The first shaft 36 is provided in the hole 41A of the cylindrical body 41.
Are rotatably inserted. The outer periphery of the cylindrical body 41 is a hole 41A.
Eccentric to That is, in FIG.
The thickness of the left side of the cylindrical body 41 with respect to the shaft 36 is increased, and the thickness of the right side is reduced. Therefore, the second
When the pipe 33 is rotated with respect to the first pipe 32 to move the thick portion toward the block 42, the block 42 presses the first pipe 32. This pressing increases the frictional force between the block 42 and the first pipe 32, thereby fixing the second pipe 33 to the first pipe 32. That is, the second pipe 33 is locked at a desired position drawn from the first pipe 32.

Conversely, if the second pipe 33 is rotated with respect to the first pipe 32 to move the thin portion toward the block 42, the lock is released, and the second pipe 33 is moved. The first pipe 32 can be slid vertically (in FIG. 5).

The second shaft 37 is made of a pipe, as shown in FIG.
As shown in FIG. 5, a pair of notches 39 facing each other is formed in the peripheral wall 37A of the second shaft 37, and the notches 39
The shaft extends from the upper end to the lower part. On the other hand, a pin P penetrating in the radial direction is provided at the tip of the first shaft 36, and both ends of the pin P are inserted into the notch 39 of the second shaft 37, and the pin P is moved along the notch 39. It can be moved. Also, the first shaft 36 is
It is slidably inserted in the shaft 37 along the axial direction.

Both ends of the pin P of the first shaft 36 are
By being inserted into the notch 39 of the shaft 37,
The rotation of the first shaft 36 is transmitted to the second shaft 37.

A bracket 5 is provided on the tip case 34.
0 is provided, and the lower part of a trumpet-shaped cover 51 provided at the tip of the second pipe 33 is supported by the bracket 50 so that the second pipe 33 can be tilted in the front-rear direction. I have.

In the cover 51, a second shaft 37 is provided.
3 (see FIG. 3)
The rotation of the second shaft 37 is transmitted to the rotating brushes 35A and 35B via the universal joint 24 and a gear train (not shown), and the rotating brush 3
5A and 35B rotate in the direction of the arrow.

According to the second embodiment, the second pipe 3
3 can be pulled out from the first pipe 32 by a desired length and fixed, so that the lengths of the pipes 32 and 33 can be adjusted according to the height of the person performing the cleaning, and regardless of the size of the height, Cleaning can be done in an easy posture.
In addition, by housing the second pipe 33 in the first pipe 32, the vacuum cleaner 30 can be housed in a compact size.

FIG. 7 shows an example in which a plate K is provided in place of the pin P provided at the tip of the first shaft 36.

FIG. 8 shows a cylindrical first shaft 36 as a square shaft 61, a second shaft 62 as a square pipe, and a first shaft 61 as a square hole 63 in the second shaft 62. The first shaft 61 is slidable along the axial direction with respect to the second shaft 62, and the first shaft 61 is inserted into the second shaft 62. On the other hand, the first shaft 61 and the second shaft 62 are integrally rotated.

By doing so, there is no need to provide a notch in the second shaft 62 or a pin in the first shaft 61, and the rotation of the first shaft 61 can be transmitted to the second shaft 62 with a simple configuration. it can. The outer shape of the second shaft 64 may be circular.

[0030]

According to the first aspect of the present invention, there is provided a vacuum cleaner comprising: a rotary brush rotatably provided at a tip of a pipe; and a handle provided at a rear portion of the pipe. A motor is provided in the section, a shaft rotated by the motor is provided in the pipe, and the rotating brush is rotated by the rotation of the shaft, so that the motor and the reduction gear box are provided in the handle section. The operation of the handle portion 12 can be performed with a small force, the operability of the handle portion is very good, and the vacuum cleaner is very easy to use.

According to the second and third aspects of the present invention,
The pipe has a first pipe and a second pipe inserted into and retractable from the first pipe, and is configured such that the length of the second pipe protruding from the tip of the first pipe can be arbitrarily fixed. The shaft has a first shaft rotatably held in a first pipe and a second shaft rotatably held in a second pipe, and a second pipe protruding from a tip of the first pipe. Regardless of the length, the rotational force of the first shaft is transmitted to the second shaft, so the length of the second pipe protruding from the tip of the first pipe is adjusted according to the height of the person performing the cleaning. Therefore, cleaning can be performed in an easy posture regardless of the height.

According to the fourth aspect of the present invention, one of the first shaft and the second shaft is constituted by a pipe member, and the other is capable of moving in and out of the pipe member and the other being unable to rotate relative to the pipe member. Therefore, the rotation of the first shaft can be transmitted to the second shaft with a simple configuration.

[Brief description of the drawings]

FIG. 1 is a perspective view showing the appearance of a vacuum cleaner according to the present invention.

FIG. 2 is a sectional view showing a handle of the cleaner shown in FIG. 1;

FIG. 3 is an explanatory diagram showing a configuration of a brush unit of the vacuum cleaner shown in FIG.

FIG. 4 is a perspective view showing a vacuum cleaner according to a second embodiment.

FIG. 5 is a cross-sectional view showing a joint between a first pipe and a second pipe.

FIG. 6 is an explanatory diagram showing a connection between a first shaft and a second shaft.

FIG. 7 is an explanatory view showing another example of the first shaft.

FIG. 8 is an explanatory view showing another example of the first shaft and the second shaft.

FIG. 9 is an explanatory view showing a conventional vacuum cleaner.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 11 Pipe 12 Handle 13 Shaft 14 Motor 20 Rotary brush

Claims (4)

[Claims] 1. A vacuum cleaner comprising: a rotary brush rotatably provided at a tip of a pipe; and a handle provided at a rear portion of the pipe, wherein a motor is provided on the handle, and A vacuum cleaner wherein a rotating shaft is provided in the pipe, and the rotating brush is rotated by rotation of the shaft. 2. The apparatus according to claim 1, wherein said pipe has a first pipe and a second pipe inserted into said first pipe so as to be able to advance and retreat.
The length of the second pipe protruding from the tip of the pipe is configured to be arbitrarily fixed, and the shaft is rotatably held in the first pipe and the second pipe rotatably held in the first pipe. The second shaft provided with the second shaft, wherein the rotational force of the first shaft is transmitted to the second shaft regardless of the length of the second pipe protruding from the tip of the first pipe. Vacuum cleaner as described. 3. One of the first shaft and the second shaft is formed of a pipe member, the other is inserted into the pipe member so as to be able to advance and retreat, and a groove is formed in the pipe member along an axial direction. 3. The vacuum cleaner according to claim 2, further comprising a projection inserted into the groove. 4. One of the first shaft and the second shaft is formed of a pipe member, and the other is formed so as to be able to advance and retreat into the pipe member and to be unable to rotate relative to the pipe member. The vacuum cleaner according to claim 2, characterized in that: