JP6457030B1 - Roller applicator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To eliminate a portion projecting from a side portion of a brush roller so as not to impair workability by hitting the periphery, to improve workability, and to allow the brush roller to be pressed uniformly left and right. The coating quality is less likely to occur and the coating quality is improved. SOLUTION: A pair of brush rollers 1 formed in a truncated cone shape having the same size and having brushes 6 on the side portions, and a pair of brush rollers 1 with their lower surfaces facing each other, the central axis of the brush roller 1 Each brush roller 1 is provided with a bearing portion 10 having a central axis P as an axis and one end opened on the lower surface of the brush roller 1 so that the handle 20 can be gripped. A grip 21, a rod 22 that extends from the grip 21, and a pair of shaft portions 23 that are provided at the distal end portion 24 of the rod 22 and extend in opposite directions to be respectively supported by the bearing portions 10 of the brush rollers 1. did. [Selection] Figure 1

Description

  The present invention relates to a roller applicator for coating, for example, for applying a paint to an object to be coated such as various structures and articles, and more particularly to a roller applicator suitable for painting a concave portion of the object to be coated.

  Conventionally, as this type of roller applicator, for example, one disclosed in Japanese Patent No. 4344202 (Patent Document 1) is known. As shown in FIG. 6, this comprises a brush roller 100 formed into an abacus ball shape with a brush attached to its side surface, and a handle 101 that is rotatably supported around the central axis of the brush roller 100. 101, a grip 102 (not shown) that can be gripped, a rod 102 extending from the grip, and a shaft portion 103 that is bent at a right angle to the tip of the rod 102 and inserted from the side of the brush roller 100 to pivotally support it. It is configured with.

Japanese Patent No. 4342042

  In the conventional roller applicator, the brush roller 100 is supported by a shaft portion 103 that is bent at a right angle to the tip of the rod 102 extending from the grip. The shaft portion 103 is supported by the brush roller 100. Therefore, a protruding portion 104 is formed on the side of the brush roller 100, which is likely to hit the periphery of the coating portion, and the operability is deteriorated as much as that. There was a problem of being. In particular, this shaft portion 103 is inserted from the side of the brush roller 100, and when the grip is pressed, a moment load acts on the shaft portion 103, so that the abacus-shaped brush roller 100 is pressed. However, a difference occurs between the left and right sides, resulting in non-uniformity. For this reason, for example, in the case of the tin roof R as shown in FIG. 6, when the corner portion C of the roof tile Ra extending in the vertical direction and protruding at a predetermined interval is painted, the workability is impaired.

  The present invention has been made in view of the above-described problems, and eliminates a portion projecting from the side of the brush roller to eliminate the situation of impairing workability by hitting the periphery, improving workability, and pressing the brush roller. It is an object of the present invention to provide a roller applicator that makes it possible to uniformly perform left and right, to prevent uneven application of paint, and to improve the coating quality.

In order to achieve the above object, a roller applicator according to the present invention comprises a pair of brush rollers formed in a truncated cone shape having the same size and having brushes on the side portions, and the pair of brush rollers on the lower surfaces of each other. And a handle that supports the brush roller rotatably about the central axis of the brush roller,
Each brush roller is provided with a bearing portion whose central axis is an axis and one end is open on the lower surface of the brush roller;
A grip capable of gripping the handle, a rod extending from the grip, and a pair of shaft portions provided at a tip portion of the rod and extending in opposite directions to be respectively supported by bearing portions of the brush rollers. Is configured.

  Thus, for example, on a tin roof, when painting a concave corner portion of a tile rod that extends vertically and protrudes at a predetermined interval, a pair of brush rollers is impregnated with paint, and the handle roller is operated by hand. Rotate and apply paint. In this case, the handle rod extends from between the right and left brush rollers and does not protrude to the side of the side of the brush roller as in the prior art, so that it can be prevented from hitting the roof around the painting site. Therefore, operability is good and smooth painting can be performed. For this reason, it is possible to prevent the occurrence of uneven coating of the paint. In addition, since the pair of brush rollers are provided on the left and right of the tip of the rod, when the brush roller is pressed, a load can be applied evenly on the left and right sides. It becomes possible to apply, and also in this respect, it is possible to prevent the occurrence of uneven coating of the paint.

  In the present invention, the brush roller is provided with a frustoconical roller body having a lower wall, an upper wall, and a side wall, and a brush having a required width attached to the outer surface of the side wall of the roller body. A cylindrical bearing portion having a central axis as an axis line is installed between the lower wall and the upper wall in the roller body, and the shaft portion is inserted into the lower wall in communication with the bearing portion. An insertion hole is provided, and a slit is provided along the axial direction so that the shaft portion is inserted into the bearing portion so that the shaft portion can be expanded in diameter, and the diameter is increased when the shaft portion is inserted. A collar that is rotatably supported by the bearing portion in a state can be provided, and the shaft portion can be configured to be detachable from the insertion hole, the bearing portion, and the collar. As a result, if the brush roller is used repeatedly and the brush roller deteriorates, the handle shaft is removed from the collar, the used brush roller is removed, and the shaft is inserted into the collar of the new brush roller. Replace the roller. In this case, since the brush roller can be replaced only by inserting and removing the brush roller, workability can be improved.

  Further, in the present invention, the tip of the rod of the handle is formed in a plate shape having a flat portion facing the lower surface of each brush roller, and the shaft portion is connected to the flat portion from the flat portion. It is effective to project in a direction orthogonal to. Since the brush is flexible, the paint can be supplied facing the gap between the pair of brush rollers, but the rod tip has a plate shape, so the space between the lower surfaces of each brush roller must be narrowed. Thus, the coating material at the tips of the pair of brush rollers can be reliably supplied.

  In this case, the thickness t of the tip portion along the axial direction of the shaft portion is set to 2 mm ≦ t ≦ 4 mm, and the distance E between the lower surfaces of the pair of brush rollers is set to 3 mm ≦ E ≦ 8 mm. Is effective. It is possible to more reliably supply the paint at the tips of the pair of brush rollers.

  It is also effective to set the plate width G along the direction perpendicular to the axial direction of the shaft portion of the tip portion to be larger than the plate thickness t along the axial direction of the shaft portion of the tip portion. The strength for holding the shaft is increased and the support is stabilized.

  In addition, it is effective that the angle θ formed between the lower surface and the side surface of the brush roller is 20 ° ≦ θ ≦ 45 °. Since the angle of the tip of the pair of brush rollers is 90 ° or less, it becomes sharp and can enter well into the recessed portion of the object to be coated, so that coating can be performed reliably.

  Furthermore, in the present invention, the height H of the brush roller can be 10 mm ≦ H ≦ 100 mm, and the lower surface diameter D can be 30 mm ≦ D ≦ 300 mm. It becomes possible to deal with various parts to be coated.

  Furthermore, it is effective to have a connecting rod connected to the grip of the handle. Since it can be painted with a connecting rod, it is possible to paint at a location relatively distant from the operator, and it can also be painted in a standing position, so that workability can be improved.

  According to the present invention, the handle rod extends from between the left and right brush rollers and does not protrude to the side of the side of the brush roller as in the prior art. Therefore, operability is good and smooth painting can be performed. For this reason, it is possible to prevent the occurrence of uneven coating of the paint. In addition, since the pair of brush rollers are provided on the left and right of the tip of the rod, when the brush roller is pressed, a load can be applied evenly on the left and right sides. It becomes possible to apply, and also in this respect, it is possible to prevent the occurrence of uneven coating of the paint.

It is a disassembled perspective view which shows the roller applicator which concerns on embodiment of this invention. It is a perspective view which shows the roller applicator which concerns on embodiment of this invention. It is a front view which shows the roller applicator which concerns on embodiment of this invention. It is a figure which shows the roller applicator which concerns on embodiment of this invention, (a) is front sectional drawing, (b) is a side enlarged view which shows the front-end | tip part of a rod. It is a perspective view which shows an example of the use condition of the roller applicator which concerns on embodiment of this invention. It is sectional drawing which shows an example of the conventional roller applicator.

Hereinafter, a roller applicator according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.
As shown in FIGS. 1 to 5, the roller applicator T according to the embodiment includes a pair of brush rollers 1 formed in a truncated cone shape having the same size and having brushes 6 to be described later on a side portion, and a pair The brush roller 1 is configured to include a handle 20 that supports the lower surface of the brush roller 1 so that the lower surfaces thereof face each other so as to be rotatable about the central axis P of the brush roller 1.

  The brush roller 1 includes a frustoconical roller body 5 having a lower wall 2, an upper wall 3, and a side wall 4, and a brush 6 having a required width attached to the outer surface of the side wall 4 of the roller body 5. Has been. The tip of the brush 6 is flattened. As the brush 6, various materials can be used. For example, synthetic fibers such as acrylic fiber, polyester fiber, and nylon fiber are used. The length, thickness, hardness, density, thickness, width, and the like of the hair of the brush 6 can be appropriately set.

  Each brush roller 1 is provided with a bearing portion 10 that supports a shaft portion 23 (described later) having the central axis P as an axis and one end opened on the lower surface of the brush roller 1. Specifically, a cylindrical bearing portion 10 having a central axis P as an axis line is installed in the roller main body 5 between the lower wall 2 and the upper wall 3. An insertion hole 11 through which the communication shaft portion 23 is inserted is provided. In addition, the bearing portion 10 is formed in a cylindrical shape and is provided with a slit along the axial direction so that the shaft portion 23 can be inserted and expanded in diameter, and the diameter is increased when the shaft portion 23 is inserted. A collar 12 that is rotatably supported by the bearing portion 10 in the state is provided.

  Further, as shown in FIG. 4, the angle θ formed between the lower surface and the side surface of the brush roller 1 is set to 20 ° ≦ θ ≦ 45 °. Further, the height H of the brush roller 1 is set to 10 mm ≦ H ≦ 100 mm, and the diameter D of the lower surface is set to 30 mm ≦ D ≦ 300 mm. The size and angle are not limited to this.

  As shown in FIGS. 1 to 5, the handle 20 is provided with a grip 21 that can be gripped, a rod 22 that extends from the grip 21, and a bearing portion of each brush roller 1 that is provided at the tip 24 of the rod 22 and extends in opposite directions. 10 and a pair of shaft portions 23 that are respectively supported by the shaft 10. The shaft portion 23 is formed to be insertable / removable with respect to the insertion hole 11, the bearing portion 10, and the collar 12. The distal end portion 24 of the rod 22 of the handle 20 is formed in a plate shape having a flat portion 25 facing the lower surface of each brush roller 1, and the shaft portion 23 changes its axis Q from the flat portion 25 to the flat portion 25. It protrudes perpendicular to.

  And as shown in FIG. 4, the plate | board thickness t along the axis line Q direction of the axial part 23 of the front-end | tip part 24 is set to 2 mm <= t <= 4mm, and the pair E of brush rollers 1 has the space | interval E of the lower surface, The shaft portion 23 is mounted so that 3 mm ≦ E ≦ 8 mm. Further, the plate width G along the direction orthogonal to the axis Q direction of the shaft portion 23 of the tip end portion 24 is set to be larger than the plate thickness t. The strength for holding the shaft portion 23 is increased and the support is stabilized.

  Further, in the roller applicator T according to the present embodiment, a connecting rod 30 connected to the grip 21 of the handle 20 is provided as shown in FIG. The connecting rod 30 has a length of about 50 cm to 100 cm, for example, and a male screw (not shown) is formed at the tip, while a female screw (not shown) is formed at the rear end of the grip 21. The connecting rod 30 is attached to the handle 20 by screwing the male screw.

  Therefore, when the roller applicator T according to the present embodiment is used, the following is performed. Here, for example, as shown in FIG. 5, a description will be given of a case where a concave corner portion C of a roof tile Ra extending in the vertical direction and projecting at a predetermined interval on the tin roof R is painted. In use, the connecting rod 30 is connected to the grip 21 of the handle 20 as necessary. In painting, the pair of brush rollers 1 is impregnated with paint, and the handle 20 is manually operated to rotate the brush roller 1 to apply the paint.

  In this case, the rod 22 of the handle 20 extends from between the left and right brush rollers 1 and does not protrude to the side of the side of the brush roller 1 as in the prior art. The situation is prevented, the operability is so good, and smooth painting can be performed. For this reason, it is possible to prevent the occurrence of uneven coating of the paint. In addition, since the pair of brush rollers 1 are provided on the left and right of the distal end portion 24 of the rod 22, when the brush roller 1 is pressed, a load can be applied evenly on the left and right. It becomes possible to apply the paint uniformly, and in this respect as well, it is possible to prevent the occurrence of uneven application of the paint.

  Further, in this case, since the brush 6 is flexible, the paint can be supplied facing the gap between the pair of brush rollers 1. However, since the tip portion 24 of the rod 22 is plate-shaped, each brush roller The space between the lower surfaces of the pair of brush rollers 1 can be narrowed, the coating material at the tip of the pair of brush rollers 1 can be reliably supplied, and the coating at the tip can be reliably performed. That is, the tip portion 24 of the rod 22 of the handle 20 is formed in a plate shape having a flat portion 25 facing the lower surface of each brush roller 1, and the plate thickness t is set to 2 mm ≦ t ≦ 4 mm, and a pair of brush rollers Since the distance E between the lower surfaces of 1 is set to 3 mm ≦ E ≦ 8 mm, the coating material at the tip of the pair of brush rollers 1 can be supplied more reliably, and the coating at the tip is more reliably performed. be able to.

  Further, since the angle θ formed between the lower surface and the side surface of the brush roller 1 is set to 20 ° ≦ θ ≦ 45 °, the angle between the tips of the pair of brush rollers 1 becomes 90 ° or less, and the tips become sharp. Since it can be made to penetrate well into the concave part of the object to be coated, the coating can be performed reliably also in this respect. Furthermore, since the height H of the brush roller 1 is set to 10 mm ≦ H ≦ 100 mm and the diameter D of the lower surface is set to 30 mm ≦ D ≦ 300 mm, not only the corner portion C where the roof tile Ra is recessed, but also various coating objects. It becomes possible to correspond to the part. Furthermore, when the connecting rod 30 is connected to the handle 20, since it can be painted with the connecting rod 30, it is possible to paint a part relatively away from the operator and to paint in a standing position. Can be improved.

  The brush roller 1 is used repeatedly, and when the brush roller 1 deteriorates, the brush roller 1 is replaced. At this time, the shaft portion 23 of the handle 20 is pulled out of the collar 12, the used brush roller 1 is removed, the shaft portion 23 is inserted into the collar 12 of the new brush roller 1, and the brush roller 1 is replaced. In this case, since the brush roller 1 can be replaced only by inserting / removing the brush roller 1, workability can be improved.

  In the above embodiment, the shape of the rod is not limited to a plate shape, and may be changed as appropriate. The present invention is not limited to the above-described embodiments of the present invention, and those skilled in the art will make many modifications to these illustrative embodiments without substantially departing from the novel teachings and advantages of the present invention. And many of these modifications are within the scope of the present invention.

T roller applicator 1 brush roller P central shaft 2 lower wall 3 upper wall 4 side wall 5 roller body 6 brush 10 bearing portion 11 insertion hole 12 collar 20 handle 21 grip 22 rod 23 shaft portion Q axis line 24 tip portion 25 flat portion 30 connection杆 R Tin roof Ra Tile rod C Corner section

Claims (5)

A pair of brush rollers formed in the shape of a truncated cone of the same size and having brushes on the sides, and the pair of brush rollers facing each other's lower surfaces so that they can rotate around the central axis of the brush roller With a supporting handle,
Each brush roller is provided with a bearing portion whose central axis is an axis and one end is open on the lower surface of the brush roller;
A grip capable of gripping the handle, a rod extending from the grip, and a pair of shaft portions provided at a tip portion of the rod and extending in opposite directions to be respectively supported by bearing portions of the brush rollers. configure Te,
The brush roller includes a frustoconical roller body having a lower wall, an upper wall, and a side wall, and a brush having a required width attached to the outer surface of the side wall of the roller body, A cylindrical bearing portion having a central axis as an axis line is installed between the lower wall and the upper wall, and an insertion hole is provided in the lower wall so as to communicate with the bearing portion and through which the shaft portion is inserted. A slot is provided along the axial direction so that the shaft portion can be expanded in diameter by being formed in a cylindrical shape in the portion, and the bearing portion is rotated in a state where the diameter is expanded when the shaft portion is inserted. A collar that is supported in an interior is provided, and the shaft portion is detachably formed with respect to the insertion hole, the bearing portion, and the collar.
The tip of the handle rod is formed in a plate shape having a flat portion facing the lower surface of each brush roller, and the shaft portion projects from the flat portion with its axis orthogonal to the flat portion. ,
The thickness t of the tip portion along the axial direction of the shaft portion is set to 2 mm ≦ t ≦ 4 mm, and the distance E between the lower surfaces of the pair of brush rollers is set to 3 mm ≦ E ≦ 8 mm. Roller applicator. The plate width G along a direction orthogonal to the axial direction of the shaft portion of the tip of claim 1, wherein the set larger than the thickness t along the axis direction of the shaft portion of the distal portion Roller applicator. 3. The roller applicator according to claim 1 , wherein an angle [theta] between the lower surface and the side surface of the brush roller is 20 [deg.] ≤ [theta] ≤45 [deg.]. 4. The roller applicator according to claim 3, wherein the brush roller has a height H of 10 mm ≦ H ≦ 100 mm and a lower surface diameter D of 30 mm ≦ D ≦ 300 mm. The roller applicator according to any one of claims 1 to 4 , further comprising a connecting rod connected to a handle grip.

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