JP2019141147A - Painting brush and painting method - Google Patents

Abstract

To provide a painting brush capable of painting easily a wide range on a vertical surface; and to provide a painting method.SOLUTION: A painting brush 100 includes a substrate 20 having a plurality of hairs 10 planted on the rear face 20b, and a grip body 30 provided on the surface 20a of the substrate 20, and having a rod-like grip 31 along a longer direction L of the substrate 20, in which the grip body 30 is provided detachably in the longer direction L of the substrate 20. The substrate 20 has a guide part 21G for guiding the grip body 30 to the longer direction L of the substrate 20.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a painting brush and a painting method.

  Conventionally, there is a painting brush that can separate a handle and a hair bundle component (see, for example, Patent Document 1).

  However, the conventional brush for painting has a fixed positional relationship between the handle and the hair bundle component, so that there is a limit to the user's posture and the range that can be painted, for example, a vertical surface such as a wall surface of a building. It was difficult to paint the altitudes of in a comfortable position.

JP 2007-289627 A

  The present invention has been made in view of the above-described problems, and an object thereof is to provide a painting brush and a painting method capable of easily painting a wide range on a vertical surface.

The present invention is grasped by the following composition in order to achieve the above-mentioned object.
(1) A painting brush according to the present invention includes a base body in which a plurality of hairs are implanted on the back surface, and a grip body provided on the surface of the base body and having a rod-like grip along the longitudinal direction of the base body. The gripping body is detachably provided in the longitudinal direction of the base body.
(2) In the configuration of (1), the base has a guide portion that guides the gripping body in the longitudinal direction of the base.
(3) In the configuration of the above (2), the guide portion clamps the gripper so that the position thereof can be adjusted.
(4) In any one of the constitutions (1) to (3), the gripping body has a lock mechanism capable of adjusting the position of the gripping body with respect to the base.
(5) The coating method using the coating brush having the structure according to any one of (1) to (4) described above includes the step of adjusting the gripper to a position eccentric from the center of the base and holding it by the base. A step of including a paint in the bristles, a posture of the coating brush such that a longitudinal direction of the base body is a vertical direction, and the gripping body is below a center of the base body, and the bristles Moving the coating brush in the horizontal direction in a state where the coating brush is in contact with the vertical surface of the object to be coated.

  According to the present invention, it is possible to provide a painting brush and a painting method capable of easily painting a wide area on a vertical surface.

It is a perspective view of the brush for painting concerning an embodiment. It is explanatory drawing which shows the state which the base | substrate and the holding body isolate | separated. It is a front view of the brush for painting. It is a left view of the brush for painting. It is a rear view of the brush for painting. It is a top view of the brush for painting. FIG. 4 is a detailed cross-sectional view taken along arrow A in FIG. 3.

(Embodiment)
DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments for carrying out the present invention (hereinafter referred to as “embodiments”) will be described in detail with reference to the accompanying drawings.

  FIG. 1 is a perspective view of a painting brush 100 according to an embodiment. FIG. 2 is an explanatory view showing a state where the base body 20 and the gripping body 30 are separated. FIG. 3 is a front view of the painting brush 100. FIG. 4 is a left side view of the painting brush 100. FIG. 5 is a rear view of the painting brush 100. FIG. 6 is a plan view of the painting brush 100. 7 is a detailed cross-sectional view taken along arrow A in FIG.

  The painting brush 100 is, for example, a brush (brush) used by a user when painting a body W having a vertical surface such as a wall surface of a building. The painting brush 100 is particularly useful when painting a vertical surface of a body W having a high place.

As shown in FIG. 1, the painting brush 100 includes a base body 20 having a plurality of bristles 10 implanted on the back surface 20 b, and a bar-shaped grip 31 provided on the front surface 20 a of the base body 20 along the longitudinal direction L of the base body 20. And a gripping body 30.
Thus, since the rod-shaped grip 31 is provided along the longitudinal direction L of the base body 20, the user grasps the rod-shaped grip 31, and the posture of the painting brush 100 is determined so that the longitudinal direction L is the vertical direction (the direction of gravity). ), It is easy to simultaneously apply a force toward the vertical surface to the painting brush 100 and a force in the direction of painting along the vertical surface, particularly a force in the horizontal direction. Therefore, the user keeps the posture of the painting brush 100 so that the longitudinal direction L thereof is the vertical direction (the direction of gravity), and the plurality of hairs 10 of the painting brush 100 are placed on the vertical surface of the object W to be coated. The paint brush 100 can be slid in the direction to be painted along the vertical plane while being in contact with each other, and the painting direction and the longitudinal direction L of the paint brush 100 are crossed to coat a wide range with a single operation. it can. Therefore, the user can easily paint a wide area in the vertical plane.

Further, as shown in FIG. 2, the gripping body 30 is detachably provided in the longitudinal direction L of the base body 20.
As described above, since the gripping body 30 is detachable from the base body 20, even if the plurality of hairs 10 are consumed, the base body 20 in which the plurality of hairs 10 are implanted can be easily replaced. The holding body 30 can be used repeatedly. Further, since the attaching / detaching direction of the gripping body 30 is the longitudinal direction L of the base body 20, the direction for adjusting the position of the gripping body 30 relative to the base body 20 and the attaching / detaching direction can be made the same direction. Therefore, the structure of the painting brush 100 can be simplified, and the user can attach and detach the grip body 30 to and from the base body 20 with a simple operation. Furthermore, since the attaching / detaching direction of the gripping body 30 is along the rod-shaped grip 31, it is easy to put a force in the attaching / detaching direction when attaching / detaching the base body 20 and the gripping body 30. Therefore, the user can attach and detach the holding body 30 with respect to the base body 20 with a simple operation.

  Hereinafter, each element constituting the painting brush 100 will be described in more detail.

(Substrate 20)
As shown in FIG. 2 or 3, the base body 20 has a rectangular shape having a longitudinal direction L in front view.

At least one side (left side in FIG. 6) among the sides constituting the rectangular shape of the base 20 may be the base curved portion 22R. As shown in FIG. 6, the base curved portion 22R is curved toward the front surface 20a side (projects toward the back surface 20b side) in a plan view, and is elastically deformable. The elastic modulus of the base bending portion 22R can be adjusted by the thickness and material of the second substrate 22.
As a result, when the hair 10 planted on the back surface 20b of the base bending portion 22R is pressed against the corner corner (not shown) of the body W to be coated, the base bending portion 22R is deformed in the elastic range, and the corner Since it becomes a shape familiar with the curved shape of the corner portion, it is possible to suppress coating unevenness at the corner portion.
The base bending portion 22R may be provided on both the left side and the right side among the sides constituting the rectangular shape of the base 20. Thereby, even if the painting brush 100 is not turned upside down, it is possible to paint the corner portion while painting the vertical surface.

  As shown in FIG. 6, the base body 20 includes a first substrate 21 and a second substrate 22. The first substrate 21 is fixed to the front side surface of the second substrate 22.

The material of the first substrate 21 in the base 20 is, for example, a thermoplastic resin made of polypropylene or the like.
The first substrate 21 in the base body 20 includes a guide portion 21 </ b> G that guides the grip body 30 in the longitudinal direction L of the base body 20.
Thereby, the position of the holding body 30 with respect to the base body 20 can be adjusted. Therefore, for example, during normal use, the painting brush 100 can be deformed into a state in which the gripping body 30 is held at a substantially central position in the longitudinal direction L of the base body 20. When it is desired to paint a wide area, the gripper 30 can be deformed to be held at a position eccentric from the center in the longitudinal direction L of the base body 20. That is, when the painting brush 100 holds the grip body 30 at a position eccentric from the center in the longitudinal direction L of the base body 20, the grip body 30 is held at a substantially central position in the longitudinal direction L of the base body 20. Compared to the state, when the user extends the hand upward while holding the grip 31 of the gripping body 30, the tip of the coating brush 100 (the hair 10 implanted at the tip in the longitudinal direction L of the base body 20) is removed. It is possible to reach the upper part in the vertical plane. Therefore, a wide range centering on the user can be painted using the painting brush 100.

Specifically, the guide portion 21 </ b> G is a rib erected so as to protrude from the plate surface of the base body 20 along the longitudinal direction L of the base body 20 on both the left and right sides of the base body 20. Both ribs are substantially parallel and each form a groove facing each other. Then, the base 32 of the gripping body 30 is sandwiched by the elasticity of the ribs by fitting the base 32 of the gripping body 30 into both grooves formed by the ribs in a state in which the rib is slightly expanded. ing. That is, the groove has a narrower portion than the thickness at both ends of the base 32. That is, the guide portion 21G of the base body 20 holds the grip body 30 so that the position of the grip body 30 can be adjusted.
Further, even when the base 32 of the gripping body 30 is fitted in the groove formed by the guide portion 21G as described above, the gripping body 30 is held against the base 20 while receiving a certain amount of frictional resistance from the guide portion 21G. It can move along 21G. Furthermore, since the base body 20 is erected so that the guide portion 21G protrudes from the plate surface of the base body 20, even when the base body 20 is thin, the bending rigidity and torsional rigidity of the base body 20 can be improved. it can. Therefore, the painting brush 100 can be made light and compact.

  Accordingly, the position of the gripping body 30 with respect to the base body 20 can be adjusted, and the position of the gripping body 30 with respect to the base body 20 can be held at the adjusted position. Therefore, after the gripping body 30 is slid along the guide portion 21G with respect to the base body 20 and adjusted to a desired position, the guide portion 21G can sandwich and hold the gripping body 30 as soon as the slide is stopped.

The material of the second substrate 22 in the base body 20 can plant the bristles 10, can hold the bristles 10, and can be deformed following the uneven shape of the vertical surface of the body W to be coated when the painting brush 100 is used. For example, it may be a foamed resin (so-called sponge) such as urethane fold or cellulose foam. The bristles 10 may be directly planted on the base 20 or may be planted on a sheet-like body (not shown) attached to the back surface 20b of the base 20.
The second substrate 22 may be a foamed resin having open cells in order to soak and hold the paint.

(Hair 10)
As shown in FIG. 6, a plurality of bristles 10 are densely implanted over the entire back surface 20 b of the base body 20. The bristles 10 are linearly shaped with one end planted on the second substrate 22 of the base 20 and the other end being a free end, and have a substantially uniform length. Since the bristles 10 are linear, a plurality of bristles 10 can be gathered, coating unevenness can be suppressed, and the paint can be easily held by capillary action. In particular, even if the hair 10 that is linear is the curved portion 10R, the plurality of hairs 10 can be densely packed, so that it is possible to suppress uneven coating of the curved shape portion at the corner of the entrance corner and the capillary phenomenon. This makes it easier to hold the paint.

  The material of the hair 10 may be any material suitable for holding the paint, and is, for example, a chemical fiber such as polyester fiber or a natural fiber such as animal hair. The bristles 10 are usually white, translucent or transparent in order to make it easy to see whether or not paint is attached, but may be colored.

  The bristles 10 may be provided substantially perpendicular to the back surface 20 b of the base body 20. Further, the hair 10 may be inclined only to the left (bending portion 10R side) with respect to the normal line of the back surface 20b of the base body 20. Thereby, the coating nonuniformity of a corner corner can be reduced. Further, the hair 10 may be inclined only upward with respect to the normal line of the back surface 20b of the base body 20. Further, the bristles 10 may be inclined obliquely upward and leftward when viewed from the front with respect to the normal line of the back surface 20b of the base body 20. Thus, since the hair 10 has what is called fur, the coating unevenness at the corners can be reduced, and the hair 10 can hold the paint for a relatively long time. Further, the hair 10 may be a single fiber, but may be a stranded wire or a hair bundle. The bristles 10 may be loop piles that protrude from the base body 20 in a loop shape.

(Grip body 30)
The gripping body 30 is configured such that the user can use the coating brush 100 by gripping it with his / her hand, and is formed of, for example, a thermoplastic resin. The gripping body 30 is provided so that its position can be adjusted in the longitudinal direction L of the base body 20 by being sandwiched between the guide portions 21 </ b> G of the base body 20.
The gripping body 30 includes a base 32, two struts 33 erected from the base 32, and a grip 31 that is spanned and fixed to the two struts 33. As shown in FIG. 4, the gripping body 30 has a U-shape of Katakana or a C-shape of alphabet in a side view.

  The base 32 is a portion that is sandwiched and held by a guide portion 21 </ b> G provided on the first substrate 21 in the base body 20. After the base 32 is adjusted to an appropriate position with respect to the base body 20, it can be fixed by a lock mechanism 40 (see FIG. 7) described later. Further, the dimension in the longitudinal direction L of the base 32 is shorter than the dimension in the longitudinal direction L of the base body 20. Thereby, the holding body 30 can be made lightweight and compact.

  The column 33 is erected substantially perpendicular to the front side surface of the base 32, and is provided so that the erection direction is horizontal when used with respect to the vertical surface of the object W to be coated. .

The grip 31 is substantially perpendicular to the direction in which the column 33 is erected, and is provided so that the direction of the grip 31 is the vertical direction when used on the vertical surface of the object W to be coated.
The grip 31 has a cylindrical outer shape with a diameter of about 30 mm. As a result, the user can firmly grip the outer periphery of the grip 31 using the entire hand, and the palm can be directed in the horizontal direction, which is the moving direction of the painting brush 100. I can tell you surely.

  In this way, the gripping body 30 has a U-shaped or C-shaped alphabet in the side view (see FIG. 4), an I-shaped alphabet in the plan view (see FIG. 6), and the alphabetic shape in the front view. It is I shape (refer FIG. 3). Therefore, since the user can firmly grip the outer periphery of the grip 31 using the entire hand, when using the painting brush 100, the user can use the reaction force due to the friction from the object W to be painted. Even if a rotational moment is generated in the vertical and horizontal directions with respect to the brush 100, it is possible to paint while resisting with a small burden and keeping the posture of the painting brush 100 stable. Therefore, even if the painting surface where the painting brush 100 is in contact with the object W to be coated is large, the frictional resistance is large, or the position of the gripping body 30 is decentered from the center of the base body 20, the burden on the user at the time of painting. Therefore, it is easy to paint the object to be coated W.

(Lock mechanism 40)
As shown in FIGS. 3 and 7, the gripping body 30 includes a lock mechanism 40 that can adjust the position of the gripping body 30 with respect to the base body 20.
Thereby, the position of the holding body 30 with respect to the base body 20 can be strongly fixed at the adjusted position. Therefore, even if the user holds the gripping body 30 and slides the painting brush 100 in the longitudinal direction L of the base body 20 with the hair 10 in contact with the body to be coated W, the position of the gripping body 30 with respect to the base body 20 Can be painted while holding

  Specifically, as shown in FIG. 7, the lock mechanism 40 includes a lock screw hole 42 provided in the base 32 of the gripping body 30 and a lock screw 41 that can be screwed into the lock screw hole 42. Then, when the lock screw 41 is screwed into the lock screw hole 42 and tightened, the force with which the tip of the lock screw 41 comes into contact with the surface 20a of the first substrate 21 is increased, so that the gripping body 30 is moved in the longitudinal direction L of the base body 20. The frictional resistance against the force is increased, and the position of the grip 30 on the base 20 can be fixed. Further, by loosening the lock screw 41 screwed into the lock screw hole 42, the force with which the tip of the lock screw 41 abuts against the surface 20a of the first substrate 21 is weakened, and the position of the gripping body 30 with respect to the base 20 can be adjusted.

(Manufacturing method of painting brush 100)
Hereinafter, an embodiment of a method for manufacturing the painting brush 100 will be described.
The painting brush 100 includes the base body 20 having a plurality of hairs 10 implanted on the back surface 20b, and the gripping body 30 provided on the front surface 20a of the base body 20, so that the plurality of hairs 10 are implanted on the back surface 20b. The manufactured base body 20 and the gripping body 30 can be manufactured separately.

  The dimensions of the painting brush 100 are, for example, 120 mm wide × 400 mm long in a front view. The thickness from the surface 20a of the base 20 to the tip of the hair 10 is about 10 mm to 20 mm. The length of the bristles 10 is approximately 5 mm. The radius of curvature of the curved portion 10R of the bristles 10 is approximately 15 mm. The curvature radius of the base bending portion 22R is approximately 10 mm. Each dimension can be changed within a range of about ± 5 mm.

The gripping body 30 of the painting brush 100 is manufactured, for example, by molding a resin.
On the other hand, the base body 20 of the painting brush 100 is manufactured as follows, for example.
First, for example, the first substrate 21 having the guide portion 21G is manufactured by extruding a thermoplastic resin and cutting at an appropriate position in the extrusion direction so as to have an appropriate length (vertical dimension).
In addition, the hair 10 having a uniform length is implanted in advance on one side of a sponge-like flat plate that becomes the back surface 20 b of the second substrate 22 to manufacture the second substrate 22. At this time, the plurality of hairs 10 may be directly planted on the back surface 20 b of the second substrate 22, and a sheet-like body (not shown) in which the plurality of hairs 10 are planted in advance is formed on the back surface of the second substrate 22. You may affix on 20b.
Next, the second substrate 22 and the first substrate 21 are integrated by appropriate means such as bonding by adhesion.
Finally, the base 32 of the holding body 30 is fitted into the groove formed by the guide portion 21G of the base body 20 in which the second substrate 22 and the first substrate 21 are integrated, and the base 32 is sandwiched between the guide portions 21G.
In this way, the painting brush 100 can be easily manufactured.

(Coating method using painting brush 100)
The painting brush 100 is used in the following painting method. Here, a case where a right-handed user uses the painting brush 100 and paints a vertical corner of the object W to be painted will be described.
(A1) First, the holding body 30 is adjusted to a position eccentric from the center of the base body 20 and is held by the base body 20 (step A1).
(A2) A paint is included in the hair 10 (step A2).
(A3) Subsequently, the orientation of the coating brush 100 is set so that the longitudinal direction L of the base body 20 is a vertical direction and the gripping body 30 is below the center of the base body 20 (step A3).
(A4) Then, in the state where the grip 31 of the gripping body 30 is gripped and the hair 10 is in contact with the vertical surface of the body W to be coated, the painting brush 100 is moved in the horizontal direction while maintaining the posture of the painting brush 100. (Step A4).
According to the painting method using the painting brush 100 including such steps, a large area can be painted with a single movement in a wide range centered on the user with respect to the vertical surface of the object W to be coated.

  As mentioned above, although this invention was demonstrated using embodiment, the technical scope of this invention is not limited to the range as described in the said embodiment. It will be apparent to those skilled in the art that various modifications or improvements can be added to the above embodiment. Further, it is apparent from the scope of the claims that the embodiments added with such changes or improvements can be included in the technical scope of the present invention.

  The painting brush 100 of the present invention includes a base body 20 having a plurality of bristles 10 implanted on the back surface 20b, and a grip body provided on the front surface 20a of the base body 20 and having a rod-like grip 31 along the longitudinal direction L of the base body 20. 30, and the gripping body 30 is detachably provided in the longitudinal direction L of the base body 20, so that the base body 20 and the gripping body 30 can be manufactured separately, and the base body 20 and the gripping body 30 can be easily attached and detached. In addition, the position of the gripping body 30 relative to the base body 20 can be easily adjusted. Therefore, a wide area on the vertical surface can be easily painted.

  The painting method using the painting brush 100 of the present invention includes a step of adjusting the gripping body 30 to a position eccentric from the center of the base 20 and holding it by the base 20, a step of including a paint in the bristles 10, The posture of the brush 100 is such that the longitudinal direction L of the base body 20 is vertical, and the gripping body 30 is below the center of the base body 20, and the bristles 10 are brought into contact with the vertical surface of the body W to be coated. The step of moving the painting brush 100 in the horizontal direction in a state where the user has applied the power of the user via the painting brush 100 even at a high place on the vertical surface of the article W to be coated. Can be painted while fully communicating. Therefore, a wide area on the vertical surface can be easily painted.

DESCRIPTION OF SYMBOLS 10 Hair 10R Curved part 11 Tip part 11c Curved surface 11p Flat surface 20 Base | substrate 20 Thin base | substrate 20a Front surface 20b Back surface 21 1st board | substrate 21G Guide part 22 2nd board | substrate 22R Base | substrate curved part 30 Grasping body 31 Grip 32 Base 33 Prop 40 Lock mechanism 41 Lock screw 42 Lock screw hole 100 Paint brush L Longitudinal direction W Object to be coated

Claims (5)

A base having a plurality of hairs implanted on the back surface;
A gripping body provided on the surface of the base body and having a rod-like grip along the longitudinal direction of the base body,
The coating brush, wherein the gripping body is detachably provided in a longitudinal direction of the base body. The coating brush according to claim 1, wherein the base includes a guide portion that guides the grip body in a longitudinal direction of the base. The painting brush according to claim 2, wherein the guide portion sandwiches the gripper so that the position thereof can be adjusted. The coating brush according to any one of claims 1 to 3, wherein the gripping body has a lock mechanism capable of adjusting a position of the gripping body with respect to the base body. Adjusting the gripper to a position eccentric from the center of the base and holding it by the base;
Including a paint in the hair;
The posture of the coating brush, the longitudinal direction of the base body is a vertical direction, and the gripping body is below the center of the base body;
5. The step of moving the painting brush in a horizontal direction in a state where the hair is brought into contact with the vertical surface of the object to be coated. 5. A coating method using the described painting brush.