Roller brush adjustment container

Abstract

This invention provides a roller brush adjustment container that can create an ideal roller condition for application when using a roller brush to apply adhesive to pipes and fittings made of rigid polyvinyl chloride. [Solution] The container 6 is characterized by having a holding member 7 that can maintain the state in which the roller of the roller brush 5 is immersed in the adhesive reservoir (liquid reservoir 10) with the roller tip facing downwards. Furthermore, a planar member 8 is provided above the adhesive reservoir (liquid reservoir 10), allowing the degree of adhesive absorption to be adjusted when the roller of the roller brush 5 is pulled out of the adhesive reservoir (liquid reservoir 10) and the roller tip or side surface is pressed against the planar member 8 and rubbed.

Description

Technical Field

[0001] The present invention relates to a container for removing an adhesive contained on the tip surface of a roller or adjusting the amount of adhesive contained on the side surface of a roller when using a roller brush for applying an adhesive to pipes and joints made of rigid polyvinyl chloride.

Background Art

[0002] Pipes made of rigid polyvinyl chloride, abbreviated as PVC pipes, are used for water supply, drainage, ventilation, etc. piping in various buildings such as apartment houses, detached houses, office buildings, factories, etc. PVC pipes have a smooth inner surface, are resistant to corrosion, are lighter in weight than metal pipes, and are excellent in workability. In addition to thick-walled pipes and thin-walled pipes for general use, various types such as impact-resistant pipes used for pumping and heat-resistant pipes used for hot water supply and high-temperature drainage have been developed. The construction method is uniformly carried out through joint parts that connect pipes called joints, and a dedicated adhesive is used for the joining.

[0003] The adhesive contains an organic solvent. When the adhesive is applied to both joint surfaces of the pipe and the joint, their surfaces are dissolved to form a dissolution swelling layer. This serves as a lubricant, allowing the pipe to be inserted deep into the joint. The joint has a tapered shape that becomes narrower towards the inside, and by inserting it deep inside, surface pressure acts on the pipe and the joint, and the required adhesive strength can be obtained.

[0004] During adhesive application, if there are areas on the insertion surface where adhesive has not been applied, a soluble swelling layer will not form, increasing insertion resistance and potentially preventing insertion to the specified mark. If insertion is not completed, surface pressure will not work properly between the pipe and fitting, reducing adhesive strength or resulting in areas that are not properly bonded, leading to water leaks. Furthermore, applying too much adhesive can cause solvent cracks in the pipe and fitting, wrinkles on the outer surface of the pipe, or swelling of the pipe. It can also cause pipe blockage due to the adhesive or lead to the development of an unpleasant odor in the tap water. Therefore, it is necessary to apply the appropriate amount of adhesive as evenly as possible, without leaving any areas uncovered. In addition, it is necessary to apply it quickly and efficiently. Since adhesive begins to dissolve the surface of the pipe and fitting and harden the moment it is applied, if it is not applied and inserted quickly, insertion to the specified mark may not be possible, or the adhesive performance may be reduced.

[0005] Brushes are often used for applying adhesive to PVC pipes. This is due to the widespread availability of PVC pipe adhesives with application brushes attached to the can lids. For relatively small diameter pipes, such as 40A to 100A pipes, applying the adhesive with this brush can achieve a satisfactory result. However, while skilled workers can apply the adhesive reasonably well with this brush, it is difficult to apply the correct amount evenly, even to visible areas, and mistakes such as missed spots can occur in blind spots, requiring techniques such as using a mirror to check blind spots. Furthermore, for relatively large diameter pipes, such as 200A to 300A pipes, it was necessary to transfer the adhesive to a larger container and use a wider brush, or to have two people work together to apply the adhesive to the pipe opening and the fitting socket simultaneously, in order to work efficiently. Furthermore, when applying with a brush, in an attempt to apply it quickly, one often ends up soaking the brush with too much adhesive, resulting in it dripping or splattering.

[0006] When applying adhesive to PVC pipes, using a roller brush is more practical than using a regular brush. While brush application is fundamentally done with the bristles, the surfaces of the pipe and fittings are the outer and inner surfaces of the cylinder. Therefore, to keep the bristles constantly in contact with the surface, the brush shaft must be constantly changed, resulting in poor work efficiency. Furthermore, if the bristles accidentally lift away from the surface, the adhesive can easily splatter, and if the adhesive is applied with the belly of the bristles, the adhesive accumulated at the base can drip. Additionally, if the bristles lift away from the surface, missed spots can occur, especially in blind spots. On the other hand, a roller brush allows for easy application while maintaining constant contact with the outer surface of the pipe and the inner surface of the fitting, resulting in better work efficiency. Even if some unevenness occurs, it can be easily smoothed out and corrected. Furthermore, by removing any excess adhesive from the roller tip of the roller brush beforehand and adjusting the amount of adhesive on the sides of the roller, it becomes less likely that the adhesive will drip or splatter during application.

[0007] A roller brush for applying adhesive was devised (see Patent Document 1) with the aim of applying the appropriate amount of adhesive evenly and without waste to the joint surface of a PVC pipe. A rotatable roller-shaped brush is attached to a protruding shaft on the inside of the sealed cap container of the adhesive filling container, with only the side of the roller serving as the brush surface. It can be said that using a roller brush improves both the quality and workability of application compared to application with a brush. However, when the roller immersed in adhesive is lifted from the liquid surface, the excess adhesive contained in the side of the roller flows downward, and this combines with the adhesive contained in the tip of the roller, with some of it remaining on the tip without falling off. If the roller brush is used in this state, the remaining adhesive will inadvertently be placed on the joint surface of the PVC pipe, requiring it to be spread and evenly distributed. In order to apply quickly within a limited time, this remaining adhesive is unnecessary and should be removed. Furthermore, since the amount of adhesive contained in the side of the roller cannot be adjusted, it is difficult to achieve accurate application work for various diameters of PVC pipes.

[0008] In the field of roller brushes for painting, various designs for roller brush buckets have been disclosed that address these technical challenges. For example, a roller brush bucket has been devised that allows paint to be spread onto the roller in a paint-applying section and excess paint to be squeezed out of the roller in a paint-squeezing section, ensuring that an appropriate amount of paint is uniformly distributed across the entire brush surface of the roller (see Patent Document 2). In this design, the paint-squeezing section has an inclined surface with multiple protrusions, but there are also conventional designs that use a mesh plate to adjust the amount of paint distributed to the brush surface of the roller. Using these, it is possible to adjust the amount of adhesive distributed to the roller side surface of the roller brush described in Patent Document 1, and to some extent, unwanted adhesive on the roller tip surface can be removed. However, in order to perform coating work on PVC pipes of various diameters, it is sometimes necessary to distribute the adhesive only to a part of the roller side surface, for example, from the tip to halfway up the roller. This cannot be achieved with these buckets, which immerse the roller side surface parallel to the liquid surface containing the adhesive.

[0009] To effectively remove unwanted adhesive from the roller tip surface, it is preferable for the roller tip surface to be a brushed surface similar to the roller side surface. With a brushed surface, unwanted adhesive can be effectively removed by rubbing it with a plate having a mesh, and even if some remains, the brushed surface will hold the remaining adhesive, preventing any adverse effects on the application process. Roller brushes with a brushed surface on the roller tip have been known for some time, but their purpose is to use the brushed surface on the roller tip surface literally as a brush (see Patent Document 3).

[0010] Furthermore, the roller brush described in Patent Document 1 has a roller attached to a protruding shaft on the sealed cap of an adhesive filling container, and the sealed cap is held by pinching it during application. If the angle between the protruding shaft and the roller shaft is defined as 0 degrees when they are in a straight line, there is no problem with workability when holding it by pinching even if the angle between the protruding shaft and the roller shaft is 0 degrees, but this is different when it is held by gripping it. If the angle between the grip shaft and the roller shaft is 0 degrees, then in order to make the side of the roller, which is the brush surface, parallel to the axis of the pipe or fitting, the wrist must be bent to compensate, which puts a strain on the wrist. A roller brush has been disclosed in which the angle of the roller shaft relative to the grip shaft can be adjusted to a desired angle (see Patent Document 4). This invention was made so that the operator can easily perform the application work as desired according to the conditions of the surface to be coated. However, since it was not disclosed with a specific task in mind, such as applying adhesive to pipes or fittings as in the present invention, the specific angle of the roller shaft relative to the grip shaft is not disclosed.

[0011] In coating operations using roller brushes, there was another technical challenge that needed solving. This was a problem that arose during operation, where the rotation of the roller gradually became obstructed. This was caused by adhesive or paint penetrating into the roller from the rear end face, increasing the friction between the roller and the roller shaft. In buckets like the one described above, where the rear end face of the roller is easily exposed to adhesive or paint, this problem is unavoidable. [Prior art documents] [Patent Documents]

[0012] [Patent Document 1] Utility Model Registration No. 3171634 Gazette [Patent Document 2] Japanese Patent Publication No. 2004-344799 [Patent Document 3] Japanese Patent Application Publication No. 11-19573 [Patent Document 4] Japanese Utility Model Publication No. 4-18000 [Overview of the Initiative] [Problems that the invention aims to solve]

[0013] The problem that this invention aims to solve is to provide a roller brush adjustment container that is useful for applying adhesive to rigid polyvinyl chloride pipes and fittings in an appropriate amount, as uniformly as possible, without leaving any uncoated areas, and efficiently and quickly. Specifically, the surfaces to be coated on pipes and fittings are the outer and inner surfaces of the cylinder, and even under such unique conditions, the invention aims to provide a roller brush adjustment container that allows adhesive to be applied to any part from the roller tip, as well as allowing the adhesive contained on the roller tip surface to be removed and the amount of adhesive contained on the roller side to be adjusted, thereby enabling accurate application work for various diameters of PVC pipes. Furthermore, the invention aims to provide a roller brush adjustment container that does not cause problems of rotational obstruction in the roller of the roller brush. [Means for solving the problem]

[0014] The roller brush adjustment container according to the present invention solves these problems and is as follows. In other words, the roller brush adjustment container according to claim 1 is a roller brush adjustment container comprising a container having a space into which the roller of a roller brush having a roller tip surface can be placed upright with the roller tip surface facing downward, wherein the container is composed of a bottom surface and sides that rise from there and surround the periphery, and the top of the container is open, and can be filled with a liquid, and a holding member is provided inside the container that has the function of holding the roller of the roller brush upright with the roller tip surface facing downward, and when the roller of the roller brush is placed upright in the container with the roller tip surface facing downward, and held by the holding member, and the liquid is accumulated below the rear end surface of the roller, and the roller tip surface and roller sides are immersed in the liquid accumulation, a planar member is provided above the liquid level of the liquid accumulation, and the planar member has the function of adjusting the amount of liquid contained in the roller tip surface and roller sides when the roller of the roller brush is pulled up from the liquid accumulation and pressed against and rubbed.

[0015] In this context, "liquid" refers to paints, adhesives, etc., depending on the nature of the work. Furthermore, a roller brush having a roller tip surface used in this invention is, for example, as follows: It consists of a grip shaft, a grip fixed to the grip shaft, a roller shaft connected in a straight line or at an angle to one end of the grip shaft, and a roller rotatably mounted on the roller shaft, where only the side surface of the roller is a brush surface, or where both the side surface of the roller and the roller tip surface are brush surfaces, and if the angle between the grip shaft and the roller shaft is defined as 0 degrees when they are in a straight line, then the angle between the grip shaft and the roller shaft is between 0 and 60 degrees. Alternatively, if the roller brush can be placed in a container upright with the roller tip surface facing downwards, a further bent connecting shaft may be added between the grip shaft and the roller shaft. These should be appropriately selected depending on the nature of the work.

[0016] In the application of adhesive to PVC pipes using a roller brush, it is crucial to control not only the adhesive contained on the roller's sides, but also the adhesive contained on the roller's tip, which acts as an obstacle. In other words, if the roller is applied to the surface of the pipe or fitting with adhesive contained on the roller's tip, the adhesive contained on the roller's sides and tip will combine, resulting in excessive application. The ideal state for the roller during application is when the roller's sides contain an appropriate amount of adhesive, while the roller's tip does not contain any adhesive.

[0017] This can be achieved by using the roller brush adjustment container according to claim 1 of the present invention. That is, when a roller that has been placed upright and immersed in the adhesive reservoir inside the container is lifted out, the excess adhesive contained on the sides of the roller flows downward due to its own weight and combines with the adhesive contained on the tip surface of the roller, effectively pulling it downward. At this point, by rubbing the tip surface of the roller with the planar member inside the container, both the excess adhesive that has flowed down from the sides of the roller and the unwanted adhesive on the tip surface of the roller can be removed at once. The shape of the planar member may be flat, curved, or a combination thereof, as long as it is suitable for rubbing the tip surface of the roller.

[0018] Thus, the key feature of this invention is that, through a series of actions—imposing the roller in the adhesive, lifting it out, and rubbing the roller tip surface with a planar member—it is possible to create an ideal roller condition for application. Furthermore, for example, when using a roller brush with a brushed tip surface, even if some adhesive remains after rubbing the roller tip surface with the planar member, the brushed tip surface retains the remaining adhesive, preventing any adverse effects on the application process. Moreover, to perform application work on various diameters of PVC pipes, it may be desirable to apply adhesive to only a portion of the roller's side, for example, from the tip to halfway up. This can be achieved in this invention because the roller is immersed in the adhesive reservoir while standing upright. Furthermore, since the roller is immersed in the adhesive reservoir and the liquid level of the reservoir is below the rear end surface of the roller, the rear end surface of the roller does not come into contact with the adhesive reservoir, thus preventing any problems with the roller's rotation being hindered.

[0019] Furthermore, as mentioned above, if the angle between the grip axis and the roller axis is between 0 and 60 degrees, the present invention can be used to perform painting work and other tasks without any problems. However, the present invention is specifically designed for the unique task of applying adhesive to pipes and fittings using a roller brush, and the angle between the grip axis and the roller axis is of great importance. If you hold the grip of the roller brush and position the side of the roller parallel to the axis of the pipe or fitting, an angle of around 30 degrees between the grip axis and the roller axis allows you to perform the work most easily without straining your wrist. Considering the range of motion of the wrist joint and the redundancy of the arm, an angle of around 15 to 45 degrees between the grip axis and the roller axis allows you to perform the work easily.

[0020] Furthermore, the roller brush adjustment container of the present invention is characterized in that a holding member having a function of holding the roller of the roller brush upright with the roller tip surface facing downward is provided inside the container. In order to stably contain an adhesive on the side surface of the roller, it is desirable for the roller to stand as vertically as possible with respect to the liquid surface of the adhesive reservoir. By standing the roller upright and immersing it, the length of the adhesive-containing region on the side surface of the roller can be controlled, enabling coating work corresponding to various diameters of PVC pipes. The holding member may be one that surrounds the roller so that it does not fall over, or one that holds the grip of the roller brush, and as a result, prevents the roller from falling over. As long as the roller stands as vertically as possible, it can be arbitrary.

[0021] The roller brush adjustment container according to claim 2 is characterized in that the holding member having a function of holding the roller of the roller brush upright with the roller tip surface facing downward is an enclosing member that holds the roller by surrounding the side surface of the roller. By surrounding the side surface of the roller, it is possible to firmly and stably hold the roller upright. Also, as the enclosing member, a mesh-like, slit-like, perforated board-like, etc. member through which the adhesive can freely pass through the enclosure is desirable.

[0022] The roller brush adjustment container according to claim 3 is characterized in that the enclosing member that holds the roller by surrounding the side surface of the roller is a mesh-like enclosure. If it is mesh-like, the adhesive filled in the container can freely pass through the enclosure, and the roller can be made to contain the adhesive without any trouble. Also, structurally, it has the advantage of being less likely to break compared to enclosures such as slit-like ones.

[0023] The roller brush adjustment container according to claim 4 is characterized in that the planar member having the function of adjusting the liquid content on the roller tip surface or the roller side surface is a mesh member. As the planar member having the function of adjusting the liquid content, there are various types such as mesh shape, slit shape, protrusion shape, perforated board shape, etc. In particular, when it is a mesh shape, when pressing and rubbing the roller tip surface or the roller side surface containing the liquid, the peeled liquid immediately falls downward, so that the liquid content can be effectively adjusted. As the mesh member, there are various types such as lattice mesh, tortoise shell mesh, diamond mesh, etc., but any one can be used as long as it has the function of effectively adjusting the liquid content.

[0024] The roller brush adjustment container according to claim 5 is characterized in that the planar member having the function of adjusting the liquid content on the roller tip surface or the roller side surface is a funnel-shaped member. In particular, when it is a funnel shape, when pressing and rubbing the roller tip surface or the roller side surface containing the liquid, the peeled liquid flows downward along the funnel wall surface, so that the liquid content can be effectively adjusted.

[0025] The roller brush adjustment container according to claim 6 is characterized in that when the roller of the roller brush is placed upright in the container with the roller tip surface facing downward and held by the holding member, at least a part of the planar member is provided below the rear end surface of the roller of the roller brush. If at least a part of the planar member is provided below the rear end surface of the roller of the roller brush, when replenishing the liquid into the container, as long as the replenishment is limited to below the planar member, it is inevitably possible to prevent the rear end surface of the roller from accidentally contacting the liquid pool, and the handling of the present invention becomes easy.

[0026] Furthermore, it is desirable to provide multiple fin-like members on the inner side of the roller brush adjustment container, above the liquid level in the liquid reservoir. These fin-like members have the function of adjusting the amount of liquid contained on the roller side when the roller brush roller is lifted out of the liquid reservoir and rubbed against it. In particular, in the application of adhesive to PVC pipes, it is necessary to use the same roller brush to accommodate various diameters, and being able to adjust the amount of liquid contained on the roller side allows for more accurate and speedy application. While some adjustment can be made by rubbing or rolling the roller side against the inner side of the container, providing multiple fin-like members on the inner side of the container allows for faster and more effective adjustment. The shape, position, direction, and number of fin-like members can be arbitrary, as long as they have the function of effectively rubbing off the liquid contained on the roller side.

[0027] Furthermore, it is desirable that the roller brush adjustment container be equipped with a lid that can seal the liquid reservoir and the roller brush together as a single unit. In particular, when the liquid is an adhesive, the roller brush can be stored sealed together with the roller immersed in the adhesive reservoir, preventing the adhesive contained in the roller from hardening and slowing down the deterioration of the adhesive stored in the container. In addition, when temporarily leaving the application work, such as during work breaks, storage management is easy as the roller brush and container can simply be sealed and placed in an organic solvent storage box or similar.

[0028] The roller brush according to claim 7 is a roller brush for use in a roller brush adjustment container according to any one of claims 1 to 6, and is characterized in that it comprises a grip shaft, a grip fixed to the grip shaft, a roller shaft connected in a straight line or at an angle to one end of the grip shaft, and a roller rotatably attached to the roller shaft, wherein only the side surface of the roller is a brush surface, or both the side surface of the roller and the tip surface of the roller are brush surfaces, and when the grip shaft and the roller shaft are in a straight line, if the angle they make is defined as 0 degrees, then the angle made between the grip shaft and the roller shaft is between 0 and 60 degrees.

[0029] The liquid coating application method according to claim 8 is characterized by using the roller brush adjustment container described in any of claims 1 to 6 and the roller brush described in claim 7. [Effects of the Invention]

[0030] By using the roller brush adjustment container and roller brush according to the present invention, it becomes possible to create an ideal roller condition for adhesive application that is compatible with various diameters of PVC pipes. As a result, the appropriate amount of adhesive can be applied uniformly, without any missed spots, and quickly and efficiently. Work can be performed with less strain on the wrist. Problems with roller rotation obstruction will not occur. The adhesive and roller brush can be stored and managed together. [Brief explanation of the drawing]

[0031] [Figure 1] This is an external view of the roller brush used in the present invention. [Figure 2] This is a perspective view of the inside of a container showing a roller brush placed inside one embodiment of the present invention. [Figure 3] This is also a top view. [Figure 4] This is a perspective view of the inside of a container filled with a liquid. [Figure 5] This is an explanatory diagram illustrating the function of a planar member. [Figure 6] This is a perspective view of the inside of a container showing a roller brush placed inside another embodiment of the present invention, filled with a liquid. [Figure 7] This is a top view with the lid removed. [Figure 8] This is a schematic diagram illustrating the mechanism that creates the ideal roller conditions for coating. [Figure 9] This is an explanatory diagram showing how to apply adhesive to a pipe. [Figure 10] This is a perspective view of the inside of a container showing a roller brush placed inside yet another embodiment of the present invention. [Figure 11] This is also a top view. [Figure 12] This is a perspective view of the inside of a container filled with a liquid. [Figure 13] This is an explanatory diagram showing the function of the retaining member. [Figure 14] This is an explanatory diagram illustrating the function of a planar member. [Modes for carrying out the invention]

[0032] Embodiments for carrying out the present invention will be described with reference to Figures 1 to 5. Figure 1 shows the external appearance of the roller brush used in the present invention. The roller brush 5 consists of a grip shaft 3, a grip 4 fixed to the grip shaft 3, a roller shaft 2 connected at an angle to one end of the grip shaft 3, and a roller 1 rotatably mounted on the roller shaft 2. Both the roller side surface 1b and the roller tip surface 1a are brush surfaces, and the angle θ between the grip shaft axis A and the roller shaft axis B is drawn here as θ = 30°.

[0033] Figures 2 and 3 show the roller brush 5 shown in Figure 1 placed upright with its roller tip surface 1a facing downwards inside a roller brush adjustment container 9, which is one embodiment of the present invention. The roller brush adjustment container 9 consists of a container 6, a holding member 7, and a planar member 8. The container 6 consists of a container bottom surface 6a and a container side surface 6b, and has an opening at the top from which the roller brush 5 can be placed upright with its roller tip surface 1a facing downwards. At this time, a holding member 7 is provided inside the container 6 so that the roller brush 5 is held upright, and the roller brush 5 can maintain a stable upright position inside the container 6 with the roller tip surface 1a of the roller 1 facing downwards. Here, the holding member 7 is a mesh-like enclosure that holds the roller 1 upright by enclosing it. Multiple pressing protrusions 6c and receiving protrusions 6d protrude inward from the container bottom surface 6a and the container side surface 6b, respectively, and the holding member 7 and the planar member 8 are fixed inside the container 6 via these protrusions.

[0034] Figure 4 shows the roller brush adjustment container 9 in Figure 2 filled with liquid. The planar member 8 is positioned above the liquid level of the liquid reservoir 10. As shown in Figure 5, when the roller brush 5 is lifted out of the liquid reservoir 10 and the roller tip surface 1a is pressed against the planar member 8 and rubbed, the liquid contained on the roller tip surface 1a is peeled off and removed. In this embodiment, the planar member 8 is a mesh-like member, and the peeled-off liquid quickly falls downwards. Therefore, it can be removed effectively. As a result of this operation, the roller 1 is formed in a state where the liquid is contained only on the roller side surface 1b. Because the liquid contained on the roller tip surface 1a is removed, it does not adversely affect the coating work. In addition, the liquid fills the reservoir up to below the roller rear end surface 1c, and the roller rear end surface 1c does not come into contact with the liquid reservoir 10. Therefore, the problem of obstruction of roller rotation does not occur. [Examples]

[0035] Example 1 will be described with reference to Figures 6 to 9. Figures 6 and 7 show a roller brush 5, as shown in Figure 1, placed in a roller brush adjustment container 9, which is another embodiment of the present invention, and filled with a liquid. Multiple fin-shaped members 11 are provided on the side surface 6b of the container 6. The fin-shaped members 11 allow for adjustment of the amount of liquid contained in the roller surface 1b when the roller brush 5 is pulled up from the liquid reservoir 10 and pressed against and rubbed against the roller surface 1b. Furthermore, the container 6 is provided with a lid 12 so that the roller brush 5 and the liquid reservoir 10 can be sealed together as a single unit.

[0036] Figure 8 is a schematic diagram showing how the roller brush 5 creates an ideal state for application using a roller brush adjustment container 9, which is another embodiment of the present invention. Here, the process of applying adhesive to a pipe will be explained step by step in Figures A to F. A. Place the roller 1 of the roller brush 5 in the adhesive reservoir 10a, with the roller tip surface 1a facing downwards and standing almost vertically. B. When the roller brush 5 is lifted out of the adhesive reservoir 10a, excess adhesive 13a remains on the roller side surface 1b, and the roller tip surface 1a contains unwanted adhesive 14a. C. The excess adhesive 13a flows downward and combines with the unwanted adhesive 14a, pulling it downward more effectively. Some of the adhesive peels off and falls into the adhesive reservoir 10a. D. By pressing the roller tip surface 1a against the mesh-like member 8a and rubbing, the excess adhesive 13a and unwanted adhesive 14a are removed all at once. E. When the roller tip surface 1a is lifted from the mesh-like member 8a, a state 15a is formed on the roller 1 where an appropriate amount of adhesive is contained only on the roller side surface 1b, completing the roller 1 in an ideal state for adhesive application. F. Furthermore, if necessary, the amount of adhesive absorbed can be finely adjusted by pressing the roller side 1b against the multiple wing-shaped members 11 provided on the side 6b of the container while rotating it. By following the steps A to F described above and utilizing the functions of the mesh-like member 8a and the wing-like member 11, it is possible to remove the adhesive contained in the roller tip surface 1a, and to adjust the amount of adhesive contained in the roller side surface 1b, enabling appropriate handling according to the size of the pipe opening.

[0037] Figure 9 is an explanatory diagram showing the application of adhesive to a pipe 16 using a roller brush 5, which is in the ideal state for adhesive application, as completed by the series of steps in Figure 8. Since the adhesive contained in the roller tip surface 1a has been removed, it can be applied neatly without going beyond the application mark 17. The roller side surface 1b is adjusted to a state 15a with an appropriate amount of adhesive, so it can be applied evenly and quickly. In addition, when performing the application work, it is necessary to keep the roller axis B and the pipe axis C parallel, but if the angle θ between the grip axis A and the roller axis B is around 30 degrees, the work can be performed most easily without straining the wrist. [Examples]

[0038] Embodiment 2 will be described based on Figures 10 to 14. Figures 10 and 11 show the roller brush 5 shown in Figure 1 placed upright with the roller tip surface 1a facing downwards inside a roller brush adjustment container 9, which is yet another embodiment of the present invention. However, the roller 1 of the roller brush 5 is larger than that shown in Figure 1. This is to accommodate adhesive application work on relatively large diameter pipes, for example, pipes of 125A to 200A. The roller brush adjustment container 9 consists of a container 6, a holding member 7, and a planar member 8. The container 6 consists of a container bottom surface 6a and a container side surface 6b, and the top is open. The holding member 7 is cylindrical with approximately the same diameter as the roller 1 and is a mesh enclosure, holding the roller 1 upright and enclosing it. The planar member 8 is a funnel-shaped member and is integrally molded with a connecting member 18. The connecting member 18 is provided with a screw and is detachably connected to the container 6. The bottom 8b of the funnel is provided with a funnel opening 8c, through which the roller brush 5 can be inserted upright with the roller tip surface 1a facing downwards. At this time, the bottom 8b of the funnel is located below the rear end surface 1c of the roller.

[0039] Figure 12 shows the roller brush adjustment container 9 in Figure 10 filled with liquid. The funnel bottom 8b of the planar member 8 is positioned above the liquid level of the liquid reservoir 10. Furthermore, the liquid fills the container up to below the rear end surface 1c of the roller, so that the rear end surface 1c of the roller does not come into contact with the liquid reservoir 10.

[0040] Figure 13 is an explanatory diagram illustrating the function of the retaining member 7. When the roller brush 5 is lifted out of the liquid reservoir 10, the excess liquid 13 contained on the roller side surface 1b is removed by the retaining member 7, which is cylindrical with approximately the same diameter as the roller 1 and has a mesh-like enclosure, so that the roller side surface 1b is left with an appropriate amount of liquid 15.

[0041] Figure 14 is an explanatory diagram showing the function of the planar member 8. In Figure 13, the roller tip surface 1a of the roller brush 5, which has been pulled up from the liquid reservoir 10, still has some unwanted liquid 14 remaining. Therefore, by pressing the roller tip surface 1a and the roller side surface 1b against the funnel wall surface 8d and rubbing them, the unwanted liquid 14 contained in the roller tip surface 1a can be removed, and the amount of liquid contained in the roller side surface 1b can be finely adjusted. This completes the roller 1 into an ideal state for liquid application. The excess liquid 13 resulting from the adjustment flows down the funnel wall surface 8d and is collected in the container 6.

[0042] The roller brush adjustment container 9 of the present invention may be molded from any suitable material such as synthetic resin or metal, but when molded from synthetic resin, it is desirable to mold it from polypropylene, which does not dissolve in organic solvents at room temperature, keeping in mind that a liquid containing organic solvents such as PVC adhesive will be used. The roller brush 5 may also be molded from any suitable material, but these should be appropriately selected according to the properties of the liquid used, such as PVC adhesive, water-based paint, or oil-based paint. [Explanation of symbols]

[0043] 1 Roller 1a Roller tip surface 1b Roller side 1c Roller rear end face 2 roller shafts 3. Grip axis 4 Grips 5. Roller brush 6 containers 6a Bottom of container 6b Container side 6c Retaining protrusion 6d Receiving projection 7 Retaining member 8-sided member 8a Mesh-like member 8b Funnel bottom 8c funnel opening 8d funnel wall 9. Roller brush adjustment container 10 Liquid reservoir 10a Adhesive accumulation 11. Feather-shaped member 12 Lid 13. Excess liquid 13a Excess adhesive 14 Unnecessary liquids 14a Unnecessary adhesive 15. A state containing a moderate amount of liquid. 15a A state containing a moderate amount of adhesive. 16 pipes 17 Coating mark line 18 Connecting Members A Grip shaft core B Roller shaft core C Pipe shaft core θ is the angle between the grip axis A and the roller axis B.

Claims

1. A roller brush adjustment container comprising a container with a space into which the roller of a roller brush having a roller tip surface can be placed upright with the roller tip surface facing downward, wherein the container is composed of a bottom surface and sides that rise from there and surround the periphery, and the top of the container is open, and can be filled with a liquid, and a holding member is provided inside the container that has the function of holding the roller of the roller brush upright with the roller tip surface facing downward, and when the roller of the roller brush is placed upright in the container with the roller tip surface facing downward, and held by the holding member, and the liquid is accumulated below the rear end surface of the roller, and the roller tip surface and roller sides are immersed in the liquid accumulation, a planar member is provided above the liquid level of the liquid accumulation, and the planar member has the function of adjusting the amount of liquid contained in the roller tip surface and roller sides when the roller of the roller brush is pulled up from the liquid accumulation and pressed against and rubbed.

2. The roller brush adjustment container according to claim 1, characterized in that the holding member, which has the function of holding the roller of the roller brush upright with the roller tip surface facing downward, is an enclosure-shaped member that holds the roller by surrounding the side surface of the roller.

3. The roller brush adjustment container according to claim 2, characterized in that the enclosure-like member that holds the roller by surrounding its side surface is a mesh-like enclosure.

4. A roller brush adjustment container according to any one of claims 1 to 3, characterized in that the surface member having the function of adjusting the amount of liquid contained in the roller tip surface or roller side surface is a mesh-like member.

5. A roller brush adjustment container according to any one of claims 1 to 3, characterized in that the planar member having the function of adjusting the amount of liquid contained in the roller tip surface or roller side surface is a funnel-shaped member.

6. A roller brush adjustment container according to any one of claims 1 to 5, characterized in that when the rollers of the roller brush are placed upright in the container with the roller tip faces downward and held by a holding member, at least a portion of the planar member is positioned below the rear end surface of the rollers of the roller brush.

7. A roller brush for use in a roller brush adjustment container according to any one of claims 1 to 6, comprising a grip shaft, a grip fixed to the grip shaft, a roller shaft connected in a straight line or at an angle to one end of the grip shaft, and a roller rotatably mounted on the roller shaft, wherein only the side surface of the roller is a brush surface, or both the side surface of the roller and the tip surface of the roller are brush surfaces, and when the angle between the grip shaft and the roller shaft is defined as 0 degrees, the angle between the grip shaft and the roller shaft is between 0 and 60 degrees.

8. A method for applying a liquid substance, characterized by using a roller brush adjustment container according to any one of claims 1 to 6 and a roller brush according to claim 7.

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