JP2007152326A - Coating device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a coating device of a type directly supplying coating material to the surface of a roller brush from outside, which can prevent a drip of the coating material or coating unevenness. <P>SOLUTION: The coating device 1 is equipped with: a roller brush 2; a gripping part 3; a support arm part 5; a coating material storage part 6 stored with coating material; a coating material supply part 7 for supplying a coating material to the surface 2A of the coating brush; a coating material conduction pipe 8 allowing the storage part 6 to communicate with the supply part 7; and a coating material sending part 9 for sending coating material in the storage part 6 to the conduction pipe 8. In the coating device 1, discharge ports 12 formed by projecting to the surface 2A of the roller brush are provided at appropriate intervals in the length direction of the supply part body 11 disposed with the supply part 7 along the roller brush 2, and the tip of the discharge port 12 is disposed in a state of contacting or substantially contacting the surface 2A of the roller brush, thereby succeeding in the prevention of drip of coating material and coating unevenness. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a coating device that includes a roller brush and a paint container, and can supply paint to the roller brush as needed. There are two types of coating tools that can supply paint to the roller brush as needed: one that feeds paint into the core of the roller brush, infiltrate the paint from inside the core, and supplies the paint to the roller brush; Although the type of supplying a paint directly to the surface is known, the present invention relates to a type of coating apparatus that directly supplies a paint to the surface of a roller brush from the outside.

  For example, in Patent Document 1, a paint tool that directly supplies paint from the outside to the surface of a roller brush, a pair of wiper rolls that contact the paint roller and make the paint thickness constant, and a position approximately at the middle of the wiper roll. There is disclosed a roller-type coating tool that is disposed and includes a paint dropping tube that drops paint onto a painting roller.

  Further, Patent Document 2 discloses a roller body for painting that is rotatably supported through a support portion that is connected to a handle, and a roller body from a paint storage portion via a flexible hose and a tube pump. There is disclosed a roller-type paint tool provided with a paint replenishing jig for continuously replenishing the surface of the roll with paint.

  In Patent Document 3, a paint supply pipe having a discharge port on its peripheral surface is attached to a support that is rotatably supported by an attachment body attached to a roller arm, and the paint supply pipe is parallel to the roller by a fastener. A paint supply unit is disclosed which is configured to be displaceable around the support shaft of the roller while being supported by the roller. According to this paint supply unit, the paint supply pipe is connected to the roller regardless of the angle of the paint surface. The coating material can be efficiently supplied from the discharge port to the roller peripheral surface immediately below.

JP 9-38566 A JP2003-164882 JP 2004-237277 A

In this way, the type that directly supplies paint to the surface of the roller brush from the outside is clogged with the inside of the roller brush (core) compared to the type that penetrates from the inside and supplies paint to the roller brush. While it has the merit that there is no such as, there is a problem that the paint drips during coating or coating unevenness is likely to occur.
In order to solve this problem, for example, in the invention of Patent Document 1, a wiper roll is provided, and the paint on the roller surface is leveled with the wiper roll to reduce paint dripping and coating unevenness.

  The present invention is intended to provide a coating apparatus that can prevent dripping of paint and uneven coating by means different from the conventionally disclosed means in a coating apparatus that directly supplies paint to the roller brush surface from the outside. Is.

  The present invention relates to a roller brush, a gripping portion, a support arm portion that is connected to the gripping portion and rotatably mounts the roller brush, a paint storage portion that stores paint, and a roller A paint supply unit that supplies paint to the brush surface; a paint container that communicates the paint container and the paint supply unit; and a paint feed mechanism that sends the paint in the paint container to the paint tube, the paint supply unit Is provided with a discharge port portion protruding toward the surface of the roller brush at an appropriate interval in the length direction of the supply unit main body disposed along the roller brush, and the tip of the discharge port portion is arranged on the surface of the roller brush A painting apparatus characterized by being arranged in contact or substantially in contact is proposed.

  The coating device of the present invention having such a configuration can supply the paint in the paint container to the surface of the roller brush by the paint delivery mechanism at any time during the painting operation. At this time, since the paint can be directly supplied from the outside to the surface of the roller brush, the paint is not clogged inside the roller brush (core part). In addition, the paint supply section is provided with a discharge port portion that protrudes from the supply section main body, and the tip of the discharge port section is disposed in contact with or substantially in contact with the surface of the roller brush, thereby dripping or painting the paint being applied. Unevenness can be prevented.

  Further, the present invention provides the coating apparatus having the above-described configuration, wherein the paint container is a container having an opening, the container body is formed in a bellows shape, and the opening and the container bottom can be expanded and contracted. The paint delivery mechanism is provided with a paint container mounting portion that can detachably mount the paint container, and a pressing mechanism that can press the container bottom of the paint container toward the opening. We propose a painting tool that is

If the paint delivery mechanism and the paint container have such a configuration, the paint can be replenished at any time by exchanging the paint container, so the amount of paint provided in the painting tool can be reduced. The overall weight of the painting apparatus can be reduced. Further, the color can be easily changed by exchanging the paint container.
Further, since the paint container is a container having an opening, the container body is formed in a bellows shape, and the space between the opening and the container bottom is formed to be extendable, the container bottom By pressing toward the opening, the paint in the paint container can be sent out to the paint conduction pipe. In addition, if the paint in the paint container is exhausted, it can be used any number of times by once removing it from the paint delivery mechanism, extending the bellows part and refilling the paint, which is also excellent in terms of economy and environment. Yes.

  The present invention also proposes that each of the support arm portion and the paint conduction pipe is configured to be extendable and contractible. In this way, if each of the support arm part and the paint conduction pipe can be expanded and contracted, it can be appropriately adjusted according to the area to be painted, the situation of the painting place, etc., and the painting work can be made even easier. it can.

BEST MODE FOR CARRYING OUT THE INVENTION

  EXAMPLES Hereinafter, although this invention is demonstrated based on an Example, the scope of the present invention is not limited to the Example demonstrated below.

  As shown in FIG. 1, the coating instrument 1 according to the present embodiment includes a roller brush 2, a grip portion 3, a support arm portion 5 including a roller mounting portion 4 on which the roller brush 2 is rotatably mounted, and a paint. , A paint supply unit 7 for supplying paint to the roller brush 2, a paint conduction pipe 8 communicating the paint storage unit 6 and the paint supply unit 7, and a paint in the paint storage unit 6 And a paint delivery mechanism 9 for delivering the paint to the paint conduction pipe 8.

(Roller brush 2)
Although not shown, the roller brush 2 includes a cylindrical core portion and a brush portion provided around the core portion so that the roller brush portion 2 can be rotatably and detachably mounted on the roller mounting portion 4. It is configured.
It is more preferable to prepare a plurality of roller brushes 2 having different lengths and diameters so that the roller brushes 2 can be appropriately replaced.
The configuration of the roller brush 2 and the mounting structure to the roller mounting portion 4 are not particularly limited, and any configuration of currently known roller brushes can be employed.

(Grip part 3)
The shape of the grip 3 is not particularly limited as long as it is easy for a person to paint, and any shape of the grip can be adopted.

(Supporting arm part 5)
The support arm portion 5 is made of a rod-shaped member or a tubular member, and has an arm portion 5a having a base end portion integrally connected to the grip portion 3 and a distal end portion of the arm portion 5a. And a roller mounting portion 4 that is bent in a direction orthogonal to the vertical direction.

  The arm portion 5a is preferably configured to be extendable and contractible in the length direction, and formed to be adjustable in length. For example, the length can be adjusted by connecting a plurality of members in a stretchable manner. If comprised in this way, the length of the arm part 5a can be adjusted according to the height etc. of the place to paint, for example.

The roller mounting portion 4 of this example is formed in a straight bar shape, and is configured so that the roller brush 2 can be rotatably mounted by pushing this bar-shaped portion into the core portion of the roller brush 2. ing. Further, the rod-like portion can be detached by being pulled out from the inside of the core portion of the roller brush 2.
However, as described above, an arbitrary configuration can be adopted as the mounting configuration of the roller brush 2 (including the structure of the roller mounting portion 4).

(Paint supply unit 7)
As shown in FIG. 2, the coating material supply unit 7 includes a tubular supply unit main body 11 extending along the surface 2 </ b> A of the roller brush 2, and the roller is provided at an appropriate interval in the length direction of the supply unit main body 11. A discharge port portion 12 that protrudes toward the brush surface 2A is provided, and the tip of the discharge port portion 12 is disposed so as to contact or substantially contact the roller brush surface 2A.

  The supply unit main body 11 has a length that is substantially the same as, slightly longer than, or slightly shorter than the length of the roller brush 2, and is formed of, for example, a tubular member made of resin or metal. Preferably, as shown in FIG. 6, the length of the supply section main body 11 may be adjusted according to the length of the roller brush 2. For example, a plurality of members can be connected to each other so that the length can be adjusted. If the length of the supply unit main body 11 can be adjusted in this way, the roller brush 2 can be replaced and used in accordance with the situation such as the area to be painted and the painting location.

The shape of the discharge port portion 12 is a shape that can reduce the resistance when contacting the paint adhering to the surface 2A of the roller brush 2, for example, when viewed in the roller circumferential surface direction of the roller brush 2, from the front tip portion to the intermediate portion It is preferable that the width gradually increases toward the rear and the width gradually decreases from the intermediate portion toward the rear end portion. And it is preferable to form in the protrusion shape which narrowed further toward the front-end | tip of the protrusion part. For example, as shown in FIGS. 3 and 4A, a hemisphere having a circular shape in a plan view (circular shape in a top view (see FIG. 4A)), a semi-rugby ball shape having an elliptical shape in a plan view (ellipse in a top view) (See FIG. 4 (B))), a rhombus-like shape having a rhombus shape in plan view (see a rhombus in a top view (see FIG. 4 (C))), or a streamline shape or a boat bottom shape.
Two or more discharge ports 12 may be provided at an appropriate interval in at least the length direction of the supply unit main body 11.

With respect to the positional relationship between the surface 2A of the roller brush 2 and the coating material supply unit 7, that is, the contact or substantially contact state between the tip of the discharge port 12 and the roller brush surface 2A, the tip of the discharge port 12 is the roller brush surface 2A. Alternatively, as shown in FIG. 5, the roller brush surface 2A is not contacted, but the paint adhered to the roller brush surface 2A is contacted, and the paint and the discharge port portion 12 are contacted. You may set to the state (substantially contact state) which does not have a space | gap between the front-end | tips.
At this time, it is preferable to adjust the pressure at which the tip of the discharge port portion 12 is in contact with or substantially in contact with the roller brush surface 2A by the viscosity of the paint to be used. More preferably, the degree of contact can be adjusted as appropriate.
Further, the tip of the discharge port 12 is made to be the surface of the roller brush by the flexibility of the paint conducting tube 8 so that the contact or substantially contact state between the tip of the discharge port 12 and the roller brush surface 2A is stably maintained. It is preferable to arrange in a state of being urged in the 2A direction.

  If the paint supply unit is brought into contact with the roller brush surface 2A without providing the discharge port portion in the supply unit body, the paint on the roller brush surface 2A is blocked by the paint supply unit, and a part of the paint is supplied. Gets over the paint supply part, and some of the paint stays and paint unevenness and sag occur. On the other hand, the discharge port part 12 is provided and a gap is provided between the supply part main body 11 and the roller brush surface 2A. If provided, the coating material can be directly supplied to the roller brush surface 2A through the discharge port 12, and the supply unit main body 11 and the coating material on the roller brush surface 2A are not in contact with each other. Can be prevented.

(Paint conducting tube 8)
The paint conduction pipe 8 communicates with the paint container 6 and the paint supply part 7 and is used to send the paint in the paint container 6 to the paint supply part 7 and is formed from a resin tubular member. One end communicates with an intermediate portion of the paint supply unit 7, and the other end, that is, the base end is inserted and fixed in the opening 22 of the paint delivery mechanism 9 and is detachably connected to the paint storage unit 6. It is configured to be able to. In this example, a screwing groove that can be screwed with a screwing groove provided on the inner side of the opening of the paint supply unit 7 is formed in the outer portion of the base end portion of the paint conduction pipe 8.

As shown in FIG. 6, the paint conducting tube 8 is preferably formed such that its length can be adjusted according to the length of the roller brush 2. For example, a plurality of members can be connected to each other so that the length can be adjusted.
The paint conduction pipe 8 can also be formed from a metal pipe, a flexible hose, or the like. Further, any structure can be adopted as the connection structure with the paint conduction pipe 8 as long as it is detachable.

(Paint container 6)
The paint container 6 has a container body portion (that is, a container peripheral side portion) of a container having a paint delivery port 6a formed in a bellows shape, and is configured to be extendable between the paint delivery port 6a and the container bottom 6b. Yes.

Since the paint container 6 is formed as a bellows-like container in this way, when the container bottom portion 6b is pressed toward the paint delivery port 6a, the bellows-shaped portion contracts and the paint inside the paint delivery port 6a is removed. It is sent out into the paint conduction pipe 8.
When the paint is used up, it can be used repeatedly by removing the paint container 6 from the paint delivery mechanism 9, extending the contracted bellows-like portion, and refilling the paint.
If the paint container 6 is prepared for each color of paint to be accommodated, the paint container 6 can be easily replaced with a paint of a different type or color.

Further, as shown in FIG. 8, the inlet 6c is provided in the container bottom 6b, and the inlet 6c and the end of the paint supply tube 31 of the paint tank 30 can be connected as shown in FIG. When the paint in the container 6 is exhausted, the paint container 6 is not removed from the paint delivery mechanism 9, and the paint supply tube 31 of the paint tank 30 is connected to the inlet 6c to fill the paint container 6 with paint. It can also be configured as follows.
At this time, the injection port 6c can be configured such that a check valve or the like is provided so that the paint in the paint container 6 does not leak out from the injection port 6c, or instead of providing a check valve. The cap can also be configured to be attached.

(Paint delivery mechanism 9)
The paint delivery mechanism 9 is configured to include a paint container mounting part 9A that can detachably mount the paint container 6 and a pressing mechanism 9B that can press the container bottom of the paint container 6 toward the opening. Has been.

  The paint container mounting portion 9A includes a support frame 21 formed by cutting an upper portion of a cylindrical central portion in the longitudinal direction, and an opening 22 is provided at the front end surface of the support frame 21. The base end portion of the paint conducting tube 8 is inserted and fixed, and the paint containing portion 6 can be attached to the front portion of the support frame 21.

  On the other hand, the pressing mechanism 9B includes a plunger 23 that presses the bottom of the paint container 6, a rod 24 connected to the plunger 23, a push plate 25 that pushes the rod 24, a lever 26, and a lever 26. A connecting member 27 for connecting the plate 25 and a spring 28 are provided.

  When the paint container 6 is mounted in the paint container mounting part 9A and the opening of the paint container 6 is connected to the base end of the paint conduction pipe 8, the lever 26 is pulled to rotate. Then, the connecting member 27 moves forward, the rod 24 moves forward against the spring 28, the plunger 23 presses the bottom of the paint container 6, and sends the paint in the paint container 6 to the paint conduction tube 8. It is configured to be able to.

The paint container 6, the paint container mounting part 9A, and the pressing mechanism 9B are not limited to the configuration of this example, and any structure can be adopted.
For example, with regard to the pressing mechanism 9B, a configuration in which the rod 24 can be moved back and forth in a screw manner can be employed, and a configuration in which the rod 24 can be electrically moved back and forth can be employed.

  Further, as described above, when the injection port 6c is provided in the container bottom 6b, as shown in FIG. 8, when the injection port 6c is formed in a shape protruding outward in a cylindrical shape, the plunger 23 has a disk shape. If it is, it will be in the way of hitting the injection port 6c, and it is preferable to make it a shape that does not hit the injection port 6c and can press the container bottom 6b, such as a Y-shaped plate or a ring shape as shown in FIG. .

It is the perspective view which showed the whole structure of the coating device which concerns on the Example of this invention. It is the figure which showed the roller brush and coating material supply part of the coating instrument shown in FIG. 1, (A) is a front view, (B) is a side view. It is the perspective view which showed the shape of the discharge outlet provided in the coating material supply part. (A), (B), and (C) are all plan views showing examples of the shape of the discharge port portion. It is the principal part expanded sectional view which showed an example of the state arrange | positioned in the state which the front-end | tip of the discharge outlet part contacted the roller brush surface substantially. It is the fragmentary perspective view which showed the state by which the coating material supply part and the coating material conduction tube were comprised so that expansion-contraction was possible in the length direction. It is the fragmentary sectional side view which showed the structural example of the coating-material delivery mechanism. It is the perspective view which showed the modification of the coating material accommodating part. It is the perspective view which showed the modification of the plunger corresponding to the modification of the coating material accommodating part shown in FIG. It is the partial cross section side view which showed the modification of the coating material delivery mechanism shown in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Coating instrument 2 Roller brush 3 Grasp part 4 Roller mounting part 5 Support arm part 6 Paint storage part 7 Paint supply part 8 Paint conduction pipe 9 Paint delivery mechanism 11 Supply part main body 12 Discharge port part 2A Roller brush surface 21 Support frame 22 Opening Portion 23 Plunger 24 Rod 25 Push plate 26 Lever 27 Connecting member 28 Spring 30 Paint tank 31 Paint supply tube

Claims (5)

A roller brush, a gripping part, a support arm part provided with a roller mounting part that is connected to the gripping part and rotatably mounts the roller brush, a paint storage part that contains paint, and a paint on the surface of the roller brush A paint supply part for supplying the paint, a paint conduction pipe communicating with the paint container and the paint supply part, and a paint delivery mechanism for sending the paint in the paint container to the paint conduction pipe,
The coating material supply unit is provided with a discharge port portion that protrudes toward the surface of the roller brush at an appropriate interval in the length direction of the supply unit main body disposed along the roller brush, and the tip of the discharge port unit A coating instrument characterized in that is arranged in contact with or substantially in contact with the roller brush surface.   The width of the discharge port of the paint supply section gradually increases from the front tip to the middle, and gradually from the middle to the rear when viewed in the roller circumferential direction of the roller brush. The coating instrument according to claim 1, wherein the coating instrument has a shape that narrows. The paint container is a container having an opening, the container body is formed in a bellows shape, and is formed to be stretchable between the opening and the container bottom,
The paint delivery mechanism is provided with a paint container mounting part that can detachably mount the paint container and a pressing mechanism that can press the container bottom of the paint container toward the opening. The coating instrument according to claim 1 or 2.   4. The coating instrument according to claim 1, wherein the supply part main body of the paint supply part is configured to be extendable and contractible in the length direction.   5. The coating instrument according to claim 1, wherein the support arm portion and the paint conduction pipe are each configured to be extendable and contractible.

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