JP3139869B2 - Paint applicator - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a paint applicator using a rubber sponge for so-called squeegee painting.

[0002]

2. Description of the Related Art Conventionally, as a paint applicator for squeegee coating using a rubber sponge, for example, Japanese Utility Model Application Laid-Open No. 4-98.
No. 468 is disclosed in FIG.
This uses a rubber sponge having a network structure in the bristle part of a normal paint brush, so that the amount of paint adsorbed can be increased and the washability of the paint applicator can be improved. It has become possible.

[0003] As described in Japanese Utility Model Publication No. 55-35081, an apparatus using a sponge brush instead of an ordinary paint brush is known.

[0004]

In the prior art, when squeegee painting is performed using only one side of the painting work surface of the paint applicator, the squeegee painting is performed from the painting work surface opposite to the painting work surface of the paint applicator. There has been a problem that the paint may fall on the already painted surface and the quality of the painted surface may be degraded.

[0005] In addition, when a worker performs squeegee painting using such a paint applicator, the paint is dropped onto an already painted surface because the paint is applied using both painting work surfaces of the paint applicator alternately. It is possible to prevent that.

However, when automatic squeegee painting is performed using an industrial robot or the like, it is difficult to alternately use both painting work surfaces of a paint applicator, so that only one painting work surface is used. And the quality of the painted surface may be deteriorated due to the falling of the paint on the already painted surface.

The present invention has been made in view of the above-mentioned problems of the prior art, and an object of the present invention is to provide a so-called squeegee coating in which the quality of the painted surface due to the drop of the paint on the already painted surface is reduced. An object of the present invention is to provide a paint applicator that does not cause deterioration.

[0008]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention relates to a continuously foamed rubber support having a coating work surface in a paint applicator formed by using rubber sponges.
A plate-shaped continuous foamed rubber sponge portion having a sharpened one ridge line made of a flange, and the continuous foamed rubber sponge portion having a sharpened one ridgeline.
Substantially the same shape as the Nji, the elastic member is adhered to the opposite side of the surface and the painting work surface of the continuous foam rubber sponges, continuous onset
The painted surface at the tip of the foam rubber sponge and the bullet on the opposite side
The distal end formed by the distal end surface of the conductive member has a sharp V-shape.
It is characterized in that it has a ke shape.

Further, it is preferable that at least the continuous foamed rubber sponge portion is formed of urethane rubber.

It is preferable that a paint supply passage is formed in the continuous foamed rubber sponge.

Further, an opening of the paint supply passage may be formed in the continuous foamed rubber sponge.

[0012]

[Action] paint to be supplied a large amount of suction holding a continuous foamed rubber sponge portion, when painted, the applicator entire previous
The shape of the end is a sharp V-shape, and while the whole rubber sponge part is in contact with the painted surface with moderate elasticity, the paint gradually seeps out from the painting work surface of the continuous foamed rubber sponge part, or from the opening While the ink is directly discharged, the paint is not adsorbed and held on the rubber sponge portion which is not a continuous foam, and the paint does not seep out therefrom. Further, the independent foamed rubber sponge portion and the continuous foamed rubber sponge portion generate an appropriate restoring force with respect to the compressing action accompanying the painting operation.

[0013]

Embodiments of the present invention will be described below with reference to the accompanying drawings. FIG. 1 is a front view of the paint applicator according to claim 1,
2 is a side view of the same, FIG. 3 is a front view of the paint applicator according to claim 4, FIG. 4 is a cross-sectional view taken along line AA of FIG. 3, and FIG. Perspective view of gun, FIG.
Is a schematic sectional view of the independent foamed rubber sponge part, and FIG. 7 is a schematic sectional view of the continuous foamed rubber sponge part.

As shown in FIGS. 1 and 2, a paint applicator 1 according to a first aspect is a plate-shaped continuous foamed rubber sponge portion 2 made of a continuously foamed rubber sponge and having a sharpened edge.
And an independent foamed rubber sponge portion 3 made of a rubber sponge having substantially the same shape as the continuous foamed rubber sponge portion 2 and independently foamed, instead of continuous foamed, is bonded to a part of the corresponding surfaces via a plastic plate 4, The sponge part 5 is formed. The surface of the continuous foamed rubber sponge 2 opposite to the surface bonded to the independent foamed rubber sponge 3 is
It becomes the painting work surface 6 where the paint is applied. Reference numeral 7 denotes a grip when the paint applicator 1 is used. By the above, paint
The applicator 1 has a continuous foam as shown in the side view of FIG.
Painted surface 6 at the end of rubber sponge and bullets on the opposite side
The front end of the entire applicator consisting of the tip surface of the conductive member is sharp.
V-shaped and brush-shaped.

The rubber forming the continuous foamed rubber sponge portion 2 and the independent foamed rubber sponge portion 3 is foamable,
It is good if it is stable with respect to the paint used, but urethane rubber is preferable in consideration of abrasion resistance and elasticity, among which soft or low-density urethane rubber sponge is preferable. Note that the continuous foamed rubber sponge portion 2 is moved from the independent foamed rubber sponge portion 3.
Is better when the density is lower. Further, the plastic plate 4 is for ensuring the stiffness of the paint applicator 1.

As shown in FIGS. 3 and 4, the paint applicator 10 according to a fourth aspect is a plate-shaped continuous foamed rubber sponge portion 1 made of a continuously foamed rubber sponge and having sharpened edges.
1 and a rubber sponge part 13 formed by bonding an independent foamed rubber sponge part 12 made of a rubber sponge which is substantially the same as the continuous foamed rubber sponge part 11 and is not foamed but foamed independently. I have.

Further, a coating work surface 1 of the continuous foam rubber sponge portion 11 for applying a paint from one surface 14 of a boundary end portion between the continuous foam rubber sponge portion 11 and the independent foam rubber sponge portion 12.
Four paint passages 16 penetrating toward the fifth side are formed in parallel. Therefore, four openings 17 are formed on the painting work surface 15 side. Such a paint passage 16 and the opening 1
The reason for forming 7 is to enable continuous supply of paint.

Further, a paint supply pipe 18 is fitted into the paint passage 16 from one surface 14 side of the boundary end, and the paint supply pipe 1 is inserted.
A paint branch pipe 19 is connected to the end of the pipe 8. The paint supply pipe 18 is made of polyethylene which also serves to secure the waist strength of the paint applicator 10, and the paint branch pipe 19 is made of metal. Reference numeral 20 denotes a connection nut for mounting the paint applicator 10 on a coating device or the like.

The paint supply pipe 18, the paint branch pipe 19, and the connection nut 20 can be integrally replaced when the rubber sponge portion 13 is worn.

The rubber forming the continuous foamed rubber sponge portion 11 and the independent foamed rubber sponge portion 12 may be any foam as long as it can be foamed and is stable with respect to the paint to be used. Urethane rubber is preferable, and soft, that is, low-density urethane rubber sponge is particularly preferable. It is more preferable that the continuous foamed rubber sponge portion 11 has a lower density than the independent foamed rubber sponge portion 12.

The coating applicator 10 can be mounted on a reciprocating coating machine, a coating robot, or the like in addition to the coating gun 21 shown in FIG. In addition, 22 is a paint supply hose.

Here, the independent foamed rubber sponge portions 3 and 12
Is a rubber sponge wall 24 and an independent hole 2 as shown in FIG.
5, the continuous foamed rubber sponge portions 2 and 11 are shown in FIG.
As shown in FIG. 6, the rubber sponge wall 26 is formed of continuous holes 27 communicating with each other.

The operation of the paint applicator 1 according to claim 1 will be described. First, when the paint is supplied to the paint applicator 1, the supplied paint travels through the continuous pores 27 of the continuous foamed rubber sponge portion 2, and a large amount of paint is adsorbed and held by the continuous foamed rubber sponge portion 2. The paint is not absorbed and held in the foamed rubber sponge portion 3.

Next, when the coating material is applied to the object to be coated, the coating material that has been sucked and held little by little from the coating work surface 6 as the degree of compression of the continuous pores 27 of the continuous foamed rubber sponge part 2 increases. Apply to painted surface. Further, since the paint does not exude from the independent foamed rubber sponge portion 3, new paint does not fall on the painted surface on which the paint has already been applied by the painting work surface 6. Further, the independent pores 25 of the independent foamed rubber sponge portion 3 are prevented from being compressed by the painting operation.
Generates an appropriate restoring force together with the continuous holes 27 of the continuous foamed rubber sponge portion 2.

The operation of the paint applicator 10 according to claim 4 will be described. First, when the paint is supplied through the paint branch pipe 19, the paint supply pipe 18, the paint passage 16, and the like, the supplied paint is transmitted through the continuous holes 27 of the continuous foam rubber sponge portion 11, and a large amount of paint is continuously supplied. The foamed rubber sponge portion 11 adsorbs and holds the paint, while the independent foamed rubber sponge portion 12 does not adsorb and hold the paint.

Next, when the coating material is applied to the object to be coated, as the degree of compression of the continuous pores 27 of the continuous foamed rubber sponge portion 11 increases, the coating material and the opening 17 which are adsorbed and held.
Is applied to the coating surface to be coated while the coating material directly discharged from the surface is leveled by the coating work surface 15. By forming the opening 17 on the side of the coating work surface 15 where the supply paint can be directly discharged, the coating speed can be increased, so that the present invention can be applied to automatic squeegee coating using an industrial robot or the like.

Further, since the paint does not seep out from the independent foamed rubber sponge portion 12, new paint does not fall on the painted surface to which the paint has already been applied by the painting work surface 15. Further, the independent holes 25 of the independent foamed rubber sponge portion 12 generate an appropriate restoring force together with the continuous holes 27 of the continuous foamed rubber sponge portion 11 with respect to the compressing action accompanying the painting operation.

[0028]

As described above, according to the present invention, the contract
Claim 1 relates to a paint coating formed using rubber sponges.
Continuously foamed rubber with a painted work surface in a cloth container
A plate-shaped continuous foaming foam with sharpened ridges made of sponge
The sponge part and the one-edge line are sharpened,
It has almost the same shape as the sponge.
An elastic member is adhered to the surface opposite to the painting work surface of
The painted surface at the end of the sponge part and the opposite side
The tip part composed of the tip surface of the elastic member is sharp V-shaped
To make a brush. Therefore, the supplied paint is
The sponge absorbs and holds a large amount of
The shape of the tip of the entire applicator is V-shaped,
The entire sponge contacts the painted surface with moderate elasticity.
Paint is less than the surface of the continuous foam rubber sponge
Bleeding out from the opening or discharging directly from the opening
On the other hand, paint is adsorbed and held on the rubber sponge that is not continuous foam.
It is not carried and no paint seeps out of it. Also, painting work
From independent foam rubber sponge etc.
Moderate elasticity with elastic foam and continuous foam rubber sponge
Can generate force. Therefore, in so-called squeegee coating, the quality of the painted surface does not deteriorate due to the drop of the paint on the already painted surface. Claim 3 or Claim
In item 4, since the paint passage is formed in the rubber sponge portion and the opening is formed in the painting work surface, the paint can be continuously supplied, and automatic squeegee painting using an industrial robot or the like can be easily performed.

[Brief description of the drawings]

FIG. 1 is a front view of a paint applicator according to claim 1.

FIG. 2 is a side view of the paint applicator according to claim 1.

FIG. 3 is a front view of the paint applicator according to claim 4;

FIG. 4 is a sectional view taken along line AA of FIG. 3;

FIG. 5 is a perspective view of a coating gun to which the coating device according to claim 4 is applied.

FIG. 6 is a schematic sectional view of an independent foamed rubber sponge.

FIG. 7 is a schematic sectional view of a continuous foam rubber sponge.

[Explanation of symbols]

1, 10: paint applicator, 2, 11: continuous foam rubber sponge portion, 3, 12: independent foam rubber sponge portion (elastic member), 6, 15: painting work surface, 16: paint supply passage, 1
7 ... Opening.

Continuation of the front page (56) References JP-A-54-20052 (JP, A) JP-A-58-35977 (JP, U) JP-A-58-119880 (JP, U) JP-A-52-89463 (JP, U) , U) Japanese Utility Model Application Hei 4-98468 (JP, U) Japanese Utility Model Application Hei 5-22069 (JP, U) Japanese Utility Model Application Hei 3-28948 (JP, Y2) (58) Fields surveyed (Int. Cl. ⁷ , DB Name) B05C 17/00-17/10 A46B 11/00-11/08

Claims (4)

(57) [Claims] 1. A coating applicator which is formed by using a rubber sponges, rubber sponge Tona obtained by continuous foam that have a painted work surface
And a plate-shaped continuous foamed rubber sponge part having a sharpened one ridge line.
An elastic member is adhered to the surface of the continuous foamed rubber sponge portion on the side opposite to the painting work surface in the same shape, and the painted surface at the end of the continuous foamed rubber sponge portion and the opposite thereof are adhered.
The tip formed by the tip of the elastic member on the side has a sharp V-shape.
It was, brush-like paint applicator, characterized in that. 2. The paint applicator according to claim 1, wherein at least the continuous foamed rubber sponge portion is formed of urethane rubber. 3. The paint applicator according to claim 1, wherein a paint supply passage is formed in the continuous foamed rubber sponge portion. 4. The paint applicator according to claim 3, wherein an opening of said paint supply passage is formed in said continuous foamed rubber sponge portion.