JPH0736751U - Rotating brush for cleaning the roof - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a rotating brush for cleaning a roof surface, which can effectively brush even a stepped portion of the roof surface. A rotary brush for cleaning a roof surface, in which a large number of brush bristles 9 oriented in a radial direction of the rotary shaft 8 are planted on a peripheral surface of a rotary shaft 8 which is rotationally driven about an axis, Of the brush bristles 9, a part of the brush bristles 9A planted at the axial end 8A of the rotary shaft 8 is formed longer than the other bristles 9B.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a rotating brush for cleaning a roof surface.

[0002]

[Prior art]

 Conventionally, for example, when cleaning muddy water and dust adhering to the roof surface of a house composed of ceramic flat roof tiles, sweep the roof surface with a bamboo broom or use a large number of bristles around the rotary shaft. The roof surface is cleaned with a vacuum cleaner that has a rotating brush that can be driven to rotate around its axis.

[0003]

[Problems to be solved by the device]

 Among them, when cleaning the roof surface with the above vacuum cleaner, the lengths of the brush hairs of the conventional rotating brush are all uniform, so that the step portion where the roof tiles overlap each other among the constituent parts of the roof surface. Then, it was difficult for the tip of the bristles to reach the upper surface of the roof tile. For this reason, it was necessary to manually clean the stepped portion separately with a small hand brush, and it took a lot of time and effort to clean the roof surface even though a vacuum cleaner was used.

In view of such circumstances, an object of the present invention is to provide a rotary brush for cleaning a roof surface that can effectively brush even a stepped portion of the roof surface.

[0005]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, the technical means taken by the present invention is a roof in which a large number of brush bristles facing in the radial direction of the rotary shaft are planted on the peripheral surface of the rotary shaft that is rotationally driven around the shaft center. In the rotary brush for cleaning the surface, a part of the bristles of the plurality of brush bristles that are planted at the axial end of the rotating shaft is formed longer than the other bristles of bristles. It is in.

[0006]

[Action]

 For example, as shown in FIG. 3, when the rotary brush 4 is rotated with the boundary between the longer bristles 9A and the shorter bristles 9B positioned at the tip of the roof tile 10, the shorter bristles 9B Brushes the upper surface of the roof tile 10, and the longer brush bristles 9A brush the upper surface of the roof tile 10 below.

[0007]

【Example】

 An embodiment of the present invention will be described below with reference to the drawings. 1 and 2, the vacuum cleaner 1 according to the present embodiment has a hollow casing 3 having a brush housing 2 at the front lower part, a rotary brush 4 rotatably housed in the brush housing 2, and Rollable gauge rollers 5 and 6 arranged in front of and behind the rotary brush 4 are provided.

A handle 7 is integrally provided on the rear upper portion of the casing 3, and an electric motor (not shown) and a gear or pulley for transmitting the rotational force of the motor to the rotary brush 4 are provided inside the rear of the casing 3. A transmission mechanism is provided. The rotary brush 4 includes a cylindrical rotary shaft 8 that is driven to rotate about its axis, and a large number of brush bristles 9 that are planted almost all over the peripheral surface of the rotary shaft 8 and that face the radial direction of the rotary shaft 8. And is accommodated in the brush accommodating portion 2 so that the axial center direction is directed in the left-right direction of the casing 3.

Each of the brush bristles 9 of the rotating brush 4 is made of a metal wire having a diameter of about 0.1 to 0.2 mm. Also has a length sufficient to project downward. Further, among the brush bristles 9 of the rotary brush 4, the brush bristle group 9A which is planted at the axial end portion 8A of the rotary shaft 8 is planted at the other axial center portion 8B of the rotary shaft 8. The brush bristles 9B are formed to be slightly longer.

That is, in this embodiment, the brush diameter of the axial end portion 8A is d₁, The brush diameter of the central portion 8B in the axial direction is d₂Then, d₁Is d₂It is set to be about 3 to 6 mm longer than that. Further, in this embodiment, the total length of the rotary brush 4 is L₀, Length of axial end 8A is L ₁ , The length of the central portion 8B in the axial direction is L₂If so, L₁+ L₂Is set to be approximately equal to the exposed length D of the roof tile 10 shown in FIG.

When cleaning the roof surface 11 with the cleaner 1 having the rotating brush 4 having the above-described configuration, as shown in FIG. 2, while the gauge rollers 5 and 6 are grounded on the upper surface of the roof tile 10, The cleaner 1 is allowed to travel laterally (in the direction of the arrow in FIG. 2) along the step portion 12 of the roof surface 11. At this time, since the brush bristles 9A at the axial end 8A are formed to be slightly longer than the other bristles b, the longer bristles b and the shorter bristles b as shown in FIG. When the cleaner 1 is run with the boundary with the group 9B positioned at the tip of the roof tile 10, the shorter brush bristles 9B brush the upper surface of the roof tile 10 and the longer bristles. 9A comes into contact with the upper surface of the roof tile 10 below and brushes it, so that the step portion 12 of the roof surface 11 can be easily cleaned.

Further, in the present embodiment, the value of L ₁ + L ₂ is substantially equal to the exposed length D of the roof tile 10, so that the other longer brush bristle group 9 A is the same as the roof tile 10 concerned. It is possible to enter the gap 13 with the roof roof tile 10 above and brush the gap 13 at the same time. The lengths L ₁ and L ₂ of each part of the rotary brush 4 may be appropriately determined according to the length of the roof tile, but the length L ₁ of the axial end 8A is the total length L _{0 of the} rotary brush 4. It is preferable to set it in the range of about 1/5 to 1/10.

The reason is that when L ₁ / L ₀ is larger than 1/5, the amount of deformation of the brush bristle group 9A is small and it is difficult to enter the gap 13, and when L ₁ / L ₀ is smaller than 1/10, the brush bristle group is small. This is because the 9A pressure decreases and effective cleaning cannot be performed.

[0014]

[Effect of device]

 As described above, according to the present invention, the upper side of the roof tile 10 is brushed by the shorter brush bristle group 9B, and at the same time, the upper side of the other roof tile 10 is lowered by the longer brush bristle group 9A. Since the brush can be brushed, the stepped portion 12 of the roof surface 11 can be easily cleaned, and the labor and time required for cleaning the roof surface 11 can be shortened.

[Brief description of drawings]

1A is a perspective view of a vacuum cleaner, and FIG. 1B is a cross-sectional view of a rotating brush.

FIG. 2 is a perspective view showing a part of a roof of a building.

FIG. 3 is an explanatory view of the action of a rotating brush.

[Explanation of symbols]

 1 Vacuum cleaner 4 Rotating brush 8 Rotating shaft 8A Axial end 9 Brush bristles 9A Brush bristles 9B Brush bristles

Claims (1)

[Scope of utility model registration request] 1. A rotary shaft (8) which is driven to rotate about its axis.
A rotary brush for cleaning a roof surface, in which a large number of brush bristles (9) oriented in the radial direction of the rotary shaft (8) are planted on the peripheral surface of the rotary shaft (8). Part of the bristle groups (9) planted at the axial end (8A) of (8).
A) A rotary brush for cleaning a roof, wherein A) is formed longer than the other brush bristles (9B).