JP2001009350A - Roller brush for corner coating - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a roller brush with a structure free of projected and recessed part in seam parts of a plane brush material, regarding a roller brush for coating corner parts and suitable for coating parts recessed at right angles just like the corner parts of a building. SOLUTION: This roller brush comprises a supporting axis joined to a grip and inserted into the rotary center of a roller 1 with a shape just like a bead on an abacus and a plane brush material 3 just like a fur put and fixed on the outer face of the roller 1. In the roller brush, the outer circumferential projected end of the roller 1 with the bead-like shape is cut off to form a recessed groove 2 and the seam 4 of the plane brush material is housed in the recessed groove.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a brush for painting paint, and more particularly to a roller brush for corner painting which is suitable for painting a part which is recessed at a right angle such as a corner of a building.

[0002]

2. Description of the Related Art A roller brush suitable for coating a part which is retracted at a right angle is described in Japanese Utility Model Laid-Open Publication No. 61-183178, and an abacus spherical roller is provided on the outer surface thereof.
The structure in which the planar brush material is bonded and fixed is disclosed in Japanese Utility Model Laid-Open No. 62-1232.
No. 81 publication.

FIG. 6 shows a conventional roller brush for painting a corner, in which inclined surfaces 1a on both the left and right sides of an abacus spherical roller 1 are provided.
A large number of arc-shaped planar brushes 3a, 3b having the same shape as that of the roller 1b are cut, and the inclined surfaces 1a, 1b on both right and left sides of the roller are cut.
However, if the brush surface of the planar brush material becomes less flexible after several uses, the roller 1 is removed from the support shaft 8 and disposable.

[0004]

However, the arc-shaped planar brushes 3a and 3b are moved to the inclined surfaces 1 on both left and right sides of the roller.
The work of bonding and fixing to a and 1b is troublesome and lacks mass productivity.

[0005] As another problem, at the outermost end 5 of the roller, which is essential, there is no hair as shown in the figure, and it is not possible to sufficiently contain paint. As a result, coating cannot be performed reliably, and the coating quality deteriorates.

On the other hand, the surface brush material is turned upside down, sewn at the outer peripheral end of the abacus spherical roller to form a hollow abacus sphere, and then turned over and adhered so that the seam is located inside. Then, the planar brush material can be adhered and fixed to the roller relatively easily, which is suitable for mass production.

[0007] In this way, two arc-shaped planar brush materials are sewn together with the inner surface facing outward to form a hollow abacus ball, and the brush member is turned upside down to cover the roller 1 with the brush surface facing outward. With a structure, there is enough hair at the seam, so that the paint can be sufficiently included,
Can be painted reliably.

However, the seam portion of the planar brush material is
The most sharp, ridge-like outermost end of the abacus spherical roller 5
, The stability is poor. That is, a part of the seam is located on the right side of the ridge-shaped part 5 and the other part is located on the left side, so that unevenness occurs. Alternatively, when the entire seam is located only on the left side or the right side with respect to the ridge portion 5, only that portion is in a raised state.

As a result, the surface of the planar brush material becomes uneven and does not coincide with the inclined surfaces 1a and 1b of the abacus spherical roller 1, so that the painting work becomes difficult or the finish quality of the painting deteriorates. Problems arise.

The technical problem of the present invention is to realize a roller brush having a structure suitable for mass production and not causing unevenness due to a seam portion of a planar brush material, focusing on such a problem. .

[0011]

The technical problem of the present invention is solved by the following means. Claim 1 is a roller brush in which a spindle connected to a handle is inserted at the center of rotation of an abacus spherical roller, and the outer surface of the roller is covered with a surface brush material such as mouton and fixed. There is no portion of the outer peripheral tip of the abacus spherical roller,
A roller brush for corner coating having a structure in which the stitches of the planar brush material are placed in the constant diameter portion or the groove portion by forming the constant diameter portion or the groove shape.

In this manner, since the abacus spherical roller has a concave groove formed at the outer peripheral end thereof and has a structure in which the stitches of the planar brush material are accommodated therein, the planar brush material is stably fixed to the roller. In addition, no irregularities are formed, and as a result, high-quality coating becomes possible.

Further, by inserting the stitches of the planar brush material into the concave grooves on the outer periphery of the roller, the abacus spherical roller can be easily aligned with the planar brush material, which is suitable for mass production. ing.

[0014]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The details of a roller brush for corner coating according to the present invention and a method for manufacturing the same will now be described. FIG. 1 is a sectional view of a roller brush for corner coating according to the present invention. Reference numeral 1 denotes an abacus spherical roller having a concave groove 2 formed at the outermost peripheral end thereof.

A surface brush material 3 made of mouton or the like is put on the outer surface of the roller 1 and is adhered and fixed. The planar brush material 3 includes two planar brush materials 3 cut into an arc shape.
a and 3b were formed into a hollow abacus spherical shape by sewing together with the back surface facing outward.

When this hollow abacus spherical surface brush material is placed on the outer surface of the roller 1 in a state where the bristle surface is turned outside, as shown in FIG. It will be in the groove 2. Therefore, the seam 4 stably fits in the groove 2,
As a result, no unevenness occurs.

FIG. 2 is a view showing various embodiments of the abacus spherical roller 1. The outermost end of the normal abacus spherical roller is pointed as shown by a chain line 5. In the case of the roller of the present invention, the angle θ is suitably 90 degrees.

In the case of the present invention, there is no sharp outermost end 5 shown by the chain line, and it is depressed in a concave groove shape. The sectional shape of the concave groove 2 is not particularly limited, but may be U-shaped or V-shaped. Further, it may be deep as shown in FIG. 1 or shallow as shown in FIG.

Further, as shown by a chain line 6 in FIG. That is, the diameter is constant at the portion indicated by the chain line 6. As described above, even when the shape has a constant diameter, the stability is lower than that in the case of the concave groove, but it is more effective than the conventional shape 5 having a sharp ridge.

(3) The figure shows that the center of the region 6 having a constant diameter is
This is an embodiment in which a concave groove 2 is formed.

(1) As shown in FIG. 1, a shaft hole 7 for inserting a handle shaft 8 is formed in the center of the roller 1.

FIG. 3 is a diagram illustrating a method of forming a hollow abacus spherical shape with a planar brush material. First, as shown in FIG. 1A, arc-shaped planar brushes 3a and 3b having the same shape as the left and right inclined surfaces 1a and 1b of the roller 1 in FIG. 2 are formed. In addition,
Since the arc-shaped planar brushes 3a and 3b have the same shape, it is sufficient to prepare two arc-shaped planar brushes having the same shape.

The inclined surfaces 1a, 1 of the abacus spherical roller 1
When b is expanded, it becomes an arc shape, so that the planar brush material 3a,
3b also has an arc shape. (2) As shown in the figure, the two arc-shaped planar brush materials 3a and 3b are turned over, and the outer peripheral portions are sewn together with the bristle face inside, as shown in the figure (3). When integrated, it becomes a hollow abacus spherical when slightly expanded.

If this hollow abacus spherical planar brush material 3 is turned upside down and the bristle side (front side) is outside, it is put on the abacus spherical roller 1 of FIG. That is, the seam 4 extends over the entire length of the groove 1 of the roller 1.
Cover so that it fits inside and align. Then, when it is fixed to the surface of the roller 1 with an adhesive, it is completed. In addition,
The adhesive may be applied to the roller 1 in advance, or may be applied to the inner surface of the planar brush material 3.

The sewing method may be skewer sewing as shown in FIG. 3 (3) or overlock sewing as shown in FIG. 4, but is not particularly limited.

FIG. 5 is a perspective view of a roller brush for corner coating in a completed state, in which a support shaft 8 is inserted into a shaft hole 7 formed in the center of the roller 1 as shown in FIG. Since the support shaft 8 and the handle 9 are integrated in an L shape, the handle 9
Is held in hand and the roller 1 is rotated.
Can be applied to the corners recessed at right angles. In addition, as shown in FIG. 1, since the hairs are concentrated on the seam 4, the paint can be sufficiently contained, and the paint can be surely applied.

The material of the roller 1 is preferably wood, but since it is disposable, it is preferable to use inexpensive waste material or the like. In addition,
It may be made of synthetic resin or metal. The planar brush material is preferably animal fur, but may be a material obtained by planting synthetic resin hairs, and the material is not limited.

[0028]

According to the first aspect of the present invention, since the abacus spherical roller has a concave groove formed in the outer peripheral end thereof and a stitch of the planar brush material is accommodated therein, the planar brush material can be stably formed. It is fixed to the roller, and there is no unevenness,
As a result, high quality coating is possible.

Further, by fitting the stitches of the planar brush material into the concave grooves on the outer periphery of the roller, the abacus spherical roller and the planar brush material can be easily aligned, which is suitable for mass production.

[Brief description of the drawings]

FIG. 1 is a roller brush for corner coating according to the present invention, in which a portion of a planar brush material is shown in a sectional view and a roller portion is shown in a side view.

FIG. 2 is a side view showing various embodiments of an abacus spherical roller.

FIG. 3 is a view illustrating a method of forming a hollow abacus spherical shape with a planar brush material, wherein (1) is an arc-shaped planar brush material;
(2) shows a state in which two arc-shaped planar brush materials are stitched together, and (3) shows a state in which stitching is completed.

FIG. 4 is a side view showing another embodiment of the seam;

FIG. 5 is a perspective view showing the entirety of a roller brush for corner coating in a completed state.

FIG. 6 is a cross-sectional view of a conventional roller brush for corner coating.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 abacus spherical roller 2 concave groove 3 planar brush material 3a, 3b arc-shaped planar brush material 4 seam 5 sharp outermost end 6 linear portion 7 shaft hole 8 support shaft 9 handle

Claims (1)

[Claims] 1. A roller brush in which a spindle connected to a handle is inserted into the rotation center of an abacus spherical roller, and the outer surface of the roller is fixed by covering a surface brush material such as mouton. The abacus spherical roller does not have an outer peripheral end, and is formed into a constant diameter or a groove so that the seam of the inner surface of the planar brush material is accommodated in the constant diameter or the groove. A roller brush for corner painting.