JPH049032Y2 - - Google Patents

Description

[Detailed description of the invention] (Purpose of the invention) This invention relates to a brush that can be detachably connected to the rotational force extraction shaft of the main body of a handy air polisher that extracts rotational force using compressed air as power. The object of the present invention is to provide a brush having a novel structure that is particularly suitable for pretreatment for car body painting repair.

(Prior art) Painting of car bodies that require full or partial painting, such as cars that have been in an accident and need to be repaired, or cars that have lost their luster due to reasons such as being parked exposed to the rain or being poorly maintained. For repairs, the areas that require painting must be carefully pretreated to remove water scale and dirt.

This pretreatment involves impregnating a thick non-woven fabric-like chemical fiber with appropriate hardness and abrasive strength with a pretreatment compound, and then holding it in your hand and stroking it around the desired area. Alternatively, it is possible to cover the pad attached to the rotational force extraction shaft of the handy air polisher main body with the chemical fiber body so that it does not fall off, and apply the compound while applying mechanical rotational force. This has been a common method up until now.

In the case of using this conventional method, in areas where the entire area is flat and there are no obstacles such as window frames, doorknobs, keyholes, etc., once a certain level of skill is achieved, regardless of whether it is efficient or not, subsequent There was no way that it couldn't be pretreated so thoroughly that it wouldn't interfere with painting. However, no matter how skilled a person is, it is almost impossible to pre-treat areas with gaps or depressions near obstructive objects such as window frames, using these conventional methods.
Usually, I leave it as is and paint it for repair.
This often resulted in uneven finishes and problems with durability.

On the other hand, in the case of a person with insufficient skill, unevenness may occur even when pretreating a flat area, and this tendency is particularly strong in methods that utilize mechanical rotational force.

As a result of intensive development and continued research to address these existing shortcomings, we have finally completed an ideal pre-treatment brush with the configuration detailed below. It is something.

(Structure of the invention) As clearly understood from the representative embodiment of this invention shown in the drawings, the pretreatment brush of this invention basically consists of a rubber base 1, a brush body 2, a rubber cover 3, It is equipped with a water hose port attachment part 4, and has the following configuration.

That is, a rubber base 1 having a connection part 11 to a rotational force extraction shaft 51 on one side and a Velcro (trade name, the same hereinafter) type connection member 12 on the other side integrally laminated, and the rubber base. A magic tape type connection member 21 connected to the magic tape type connection member 12 of No. 1, a sponge body 22, and a brush plate 23
are laminated and integrated in this order to form a brush body 2.
and the respective magic tape type connecting members 12, 2
1 are connected and combined to form a brush body, and the outer periphery of the brush body is covered with a rubber cover 3, and a water hose port attachment part 4 is provided on the attachment frame 31 of the rubber cover 3. This is a pretreatment brush for car body painting repair that can be detachably connected to the rotational force extraction shaft 51 of the handy air polisher main body 5.

The rubber base 1 has a connection part 11 made of metal or hard plastic to the rotational force extraction shaft 51, for example, a part of the member having an appropriate connection structure such as a screw part or a chuck, integrally buried in one side of the rubber base 1. insert, form, and attach the magic tape type connection member 12 on the opposite side.
However, this is also integrally glued or sewn.

The brush body 2 has a sponge body 22 on the back side of a brush plate 23, which is made of a plastic plate or a wooden board and has plastic fibers of about 30 to 35 mm densely planted thereon.
Laminate the magic tape type connecting member 21 through the
It has an integrated structure, and the magic tape type connection member 21 is detachably connected to the magic tape type connection member 12 of the rubber base 1.

The rubber cover 3 has a shape that covers and wraps around the outer periphery of the brush body formed by connecting the rubber base 1 and the brush body 2.
It is supported by a mounting frame 31 fixed to.

The mounting frame 31 supports the rubber cover 3 as described above, and has a water hose port mounting portion 4 at an appropriate position.

As shown in Figure 1, the structure of the water hose port attachment portion 4 may include a ring-shaped tightening fitting, a tightening band, an insertion hole type attachment portion, etc., although not particularly shown, as appropriate. be able to.

FIG. 1 shows a cross section of the structure for attaching the brush of this invention to the handy air polisher main body 5, and FIG. 2 shows an exploded perspective view of the rubber base 1 and brush plate 2 that constitute the brush body of the brush. FIG. 3 shows an exploded perspective view of the combination of the brush body, the rubber cover 3, and the attachment frame 31.

(Function and Effect) The brush of this invention, which is constructed as described above, is connected to the rotating force extraction shaft 51 of the handy air polisher main body 5, and is rotated using compressed air from the compressor as a power source, and is applied to the surface of the vehicle body. The rotating brush body comes into contact with the brush body and removes scale and dirt from the contact surface evenly and efficiently.

This action is due to the fact that in addition to the elasticity of the rubber base 1, the sponge body 22 on the lower surface of the brush plate 23 transmits an average pressing force according to the unevenness of the car body surface. This is caused by the unique structure of this invention, in which the brush portions 24, 24, .

This effect is particularly effective in areas such as near window frames, doorknobs, and keyholes, which are extremely difficult to perform pretreatment for car body painting repairs, and even unskilled workers can perform pretreatment almost evenly. It is possible to carry out the work.

In particular, this unique structure prevents the drawback of using too much on the same area and creating large unevenness on the base.Therefore, unlike previous products, good pretreatment cannot be performed without a certain level of skill. The disadvantages such as these are eliminated, and the work process becomes extremely advantageous.

In addition, if the water hose 6 is connected to the water hose port attachment part 4 pre-formed on the mounting frame 31 as necessary and the water supply is operated while supplying water, it is possible to remove the need for extensive washing before the pre-treatment step. This brush will function effectively as is.

On the other hand, the brush body consists of a rubber base 1 and a brush body 2.
Since the brush members 24, 24, . By preparing several types of brush members 24, 24, . . . with different bending strengths, it is possible to easily use the brush members 24, 24, . . . depending on the degree of damage to the base.

In addition, this brush is equipped with a rubber cover 3, so there is no need to worry about scratching the vehicle no matter what position you use it in, as well as during work using pre-treatment compound. Even when washing with water, there is no risk of dirt scattering on the worker or staining the treated area, and the work can be carried out very hygienically and efficiently.

As mentioned above, the pre-treatment brush of this invention allows anyone to paint car bodies extremely easily and reliably, unlike conventional brushes that use non-woven fabrics by hand or by covering them with a handy air polisher. It enables pre-treatment for repairs and can even be washed with water if necessary, so it definitely improves work efficiency in sheet metal painting factories, and also receives high praise for its work content. It is expected that this will be a powerful tool in this increasingly competitive industry.

[Brief explanation of drawings]

The drawings are based on representative embodiments of this invention; FIG. 1 is a central vertical sectional view, and FIG.
FIG. 3 is an exploded perspective view of the brush body and other members. 1...Rubber base, 11...Same attachment part, 12
...the same connection member, 2...the brush body, 21...the same connection member, 22...the same sponge body, 23...the same brush plate, 24...the same brush member, 3...the rubber cover, 31... Same mounting frame, 32... Same cover fixing band, 4... Water hose mouth attachment part, 5... Handy air polisher body, 51
...The same rotational force extraction shaft, 6...Water hose.

Claims (1)

[Scope of utility model registration request] Has a connection part to the rotational force extraction shaft on one side,
A rubber base with a magic tape (product name, the same hereinafter) type connection member integrally laminated on the opposite side,
A brush body is formed by laminating and integrating a magic tape type connection member, a sponge body, and a brush plate in this order, which are connected to the magic tape type connection member of the rubber base, and are combined by connecting the respective magic tape type connection members to each other. A handy air polisher characterized in that a brush body is formed by forming a brush body, the outer periphery of the brush body is covered with a rubber cover, and a water hose port attachment part is formed on an attachment frame of the rubber cover. A pretreatment brush for vehicle body painting repair that can be detachably connected to the rotational force extraction shaft of the shear body.