JP3156065B2 - Car wash machine rotating brush - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rotating brush for a car washer in which a washing body is fixed to the outer periphery of a rotating body.

[0002]

2. Description of the Related Art Conventionally, in order to prevent a rotating brush of a car washing machine from scratching a painted surface of a vehicle, a nonwoven fabric in which polyester long fibers are partially thermocompressed is fixed to the rotating body as a washing body. It is known to use brushes.

[0003]

However, the above-mentioned conventional rotary brush has a problem in that the cleaning body is worn out at an early stage due to friction with a vehicle body at the time of car washing, resulting in low durability.

[0004] The present invention has been made in view of the above circumstances, and has as its object to improve the durability of a cleaning body used for a rotating brush.

[0005]

In order to achieve the above object, the present invention relates to a rotating brush of a car washing machine having a washing body fixed to the outer periphery of a rotating body, wherein the washing body is made of a nonwoven fabric made of nylon long fiber. It is, the nonwoven fabric, the non
Disperses throughout the woven fabric , heat without binder
And have a number of thermo-compression bonding portion crimped, the number of heat
Due to the dispersion of the crimped part, the non-woven
It is characterized in that a large number of irregularities distributed over the whole area of the cloth are formed .

[0006]

Embodiments of the present invention will be described below with reference to the drawings.

FIGS. 1 to 5 show an embodiment of the present invention. FIG. 1 is a cross-sectional view of a rotary brush, FIG. 2 is a view in the direction of arrow 2 in FIG. 1, and FIG. FIG. 4 is an enlarged view, and FIG. 4 is a view showing a state in which the top surface of the vehicle is cleaned with a top brush.
FIG. 4 is a diagram showing a state in which the side surface of the vehicle is washed with a side brush.

FIGS. 1 and 2 show a rotary brush 1 of a car washer having an outer diameter of about 800 mm. The rotary brush 1 is fixed to a rotary shaft 2 made of a vinyl chloride tube and radially around the rotary shaft. It is composed of a number of units 3 as a cleaning body.

The sheet material constituting the unit 3 is a nonwoven fabric made of nylon long fiber, and is partially thermocompression-bonded by a spun bond method. This nonwoven fabric has a directional tear strength, and has a property that the transverse tear strength is greater than the longitudinal tear strength. As such a nonwoven fabric, for example, "ELTAS" (registered trademark) of Asahi Kasei Corporation is available.

FIG. 3 is an enlarged view of the non-woven fabric, wherein 1 cm shown in the figure corresponds to 1 cm of the actual product. In the figure, the portions painted black are thermocompression bonding portions having a minus pattern. By adopting thermocompression bonding without using a binder in this way, it is possible to improve the durability against water as compared with the case where a binder is used, and further increase the flexibility of the nonwoven fabric by thermocompression bonding in a minus pattern The painted surface of the vehicle can be prevented from being damaged, and the cleaning effect is improved because the unevenness is formed on the surface of the nonwoven fabric.

The nylon filaments constituting the nonwoven fabric are mainly arranged along the direction of arrow A, whereby the tear strength in the direction of arrow A is increased and the tear strength in the direction is hard to be broken, and the tear strength in the direction of arrow B is reduced. When it becomes smaller, a characteristic that easily breaks is given in that direction. Further, as will be described later, since the arrow A direction in which the nylon long fibers are mainly arranged coincides with the radial direction of the rotating brush 1, the nylon long fibers are less likely to be caught by the projections of the vehicle during car washing, and the vehicle is damaged. Can be prevented.

The unit 3 is obtained by cutting the non-woven fabric into a rectangular shape, folding the non-woven fabric into a bellows shape, and folding the non-woven fabric at the center in the longitudinal direction into a fan shape. Four such fan-shaped units 3 are combined into a disk and assembled in a disc shape. The radial cut formed at that time, that is, the nonwoven fabric folded in a bellows shape, is protruded when it is folded in two at the center in the longitudinal direction. Two units 3, 3 that are joined together and are adjacent to each other
The disc-shaped segments are formed by joining the butted edges to each other by means such as sewing or welding. Then, the rotating brush 1 is configured by fixing the plurality of segments on the outer periphery of the rotating shaft 2 in a stacked state with bolts 4 penetrating the main parts of each unit 3.

At this time, the direction of arrow A having a large tearing strength coincides with the radiation direction of the unit 3 (ie, the direction of the fold line folded in a bellows shape), and the direction of arrow B having a small tearing strength corresponds to the circumference of the unit 3. The cutting direction of the nonwoven fabric is determined so as to match the direction.

As shown in FIG. 4, the rotating brush 1 having the above-described structure includes a top brush 5 for cleaning the upper surface of the vehicle V,
As shown in FIG. 5, it is used as a side brush 6 for cleaning the side surface of the vehicle V.

Next, the operation of the rotating brush 1 will be described.

A top brush 5 comprising the rotary brush 1
Alternatively, when the side brush 6 is rotated to clean the vehicle body surface, the unit 3 constituting each of the brushes 5, 6 is hardly torn in the circumferential direction but torn in the radial direction due to the direction of the tearing strength of the nonwoven fabric. If it breaks for any reason, it will break in the radial direction. Therefore, even if the nonwoven fabric is torn, the nonwoven fabric does not catch on the protrusions such as the molding of the vehicle, so that the protrusions of the vehicle can be prevented from being damaged. Also, even if the nonwoven fabric breaks radially and becomes a band,
Since the nonwoven fabric is hard to be broken in the circumferential direction, it does not break, and can be used continuously as it is, so that the life is improved.

In addition, nylon, which is a material of the unit 3, has a wider allowable range of thermal bonding conditions in thermocompression bonding than polyester which has been conventionally used, so that thermocompression bonding can be performed easily and reliably. . As a result, the bonding strength of the thermocompression bonding portion is increased, and the fibers of the thermocompression bonding portion are not easily peeled off (that is, less fluffed) even when they come into contact with the vehicle body surface at the time of car washing. The problem of wear can be prevented, and the life can be extended.

Although the embodiment of the present invention has been described in detail above, the present invention is not limited to the above embodiment, and various design changes can be made.

[0019]

As described above, according to the present invention, the nonwoven fabric having a large number of thermocompression bonding portions and constituting the cleaning body of the rotating brush is made of nylon filament, and the nylon is made of polyester which has been used conventionally. In comparison, the allowable range of the thermal bonding conditions at the time of thermocompression bonding is wider, and thermocompression bonding can be performed easily and reliably. Moreover, the above-mentioned nonwoven fabric made of nylon long fiber
By thermocompression bonding without using a binder,
Improved durability against water compared to using
Can be made. As a result, even if the bonding strength of the thermocompression bonding part becomes stronger and the vehicle body is rubbed during car washing, the fiber of the thermocompression bonding part is less likely to be peeled off (that is, less fluffed) than the conventional one using polyester. Accordingly, abrasion of the nonwoven fabric due to breakage of the peeled fibers can be prevented, and the life of the cleaning body can be extended. Moreover, by having a number of thermo-compression bonding portion is dispersed over the entire region of the nonwoven fabric, it is possible to effectively prevent the generation of car washing flaws by increasing the flexibility of the nonwoven fabric, and the dispersion of the plurality of thermo-compression bonding portion Due to
On the surface of the woven fabric, a large number dispersed over the entire area of the nonwoven fabric
Since the unevenness is formed, the cleaning effect is improved.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of a rotating brush.

FIG. 2 is a view in the direction of arrows in FIG. 1;

FIG. 3 is an enlarged view of a nonwoven fabric of a rotating brush.

FIG. 4 is a diagram showing a state in which the top surface of the vehicle is cleaned with a top brush.

FIG. 5 is a diagram showing a state in which a side surface of a vehicle is cleaned with a side brush.

[Explanation of symbols]

 2 rotating body 3 unit (cleaning body)

Claims (1)

(57) [Claims] 1. A rotating brush for a car wash in which a cleaning body (3) is fixed to an outer periphery of a rotating body (2), wherein the cleaning body (3) is made of a nonwoven fabric made of nylon long fiber. , Dispersed throughout the nonwoven fabric ,
Have a number of thermo-compression bonding portion was heat pressed without using Indah
And, by the dispersion of the number of thermal bonding portions, a surface of the nonwoven fabric
Has many irregularities distributed throughout the nonwoven fabric.
A rotating brush for a car wash, characterized in that it is formed.