Handle for paint roller

Abstract

To provide a paint roller handle that does not need to be replaced even when the painting area changes, and can be easily adjusted to a user-friendly shape at any time. [Solution] The device comprises a rod-shaped grip 1, a roller support rod 6 that rotatably supports a roller brush for painting, and a bendable rod 7 provided between the grip 1 and the roller support rod 6, which is made of a material that can be plastically deformed by bare hands.

Description

Technical Field

[0001] This invention relates to a handle of a painting roller.

Background Art

[0002] As shown in FIG. 5, a handle of a conventional painting roller is composed of a grip 1 and an arm 2. The arm 2 is provided with a rod member 3 protruding in the extension direction of the axis L of the grip 1, and a roller support portion 4 obtained by bending the tip thereof so as to be orthogonal to the axis L of the grip rotatably supports a roller brush 5. This is a common configuration. In the above-described conventional painting roller, the axis L of the grip 1 and the roller support portion 4 are on the same plane and their relative positions are fixed. Therefore, depending on the painting location, the hand of the worker holding the grip may be in an unnatural state.

[0003] For example, a worker painting the outer wall of a veranda using the roller of FIG. 5 has to move the roller containing paint on the wall surface while holding the grip so that the hand does not touch the wall surface by leaning out from above the fence. It is difficult to control the force, and the hand becomes in an unnatural state. Such an unnatural state causes fatigue and may also have an adverse effect on the finish of the painting work. On the other hand, in order to paint the outer wall of a veranda or the inner surface of a channel steel as described above, a special roller is also known in which the shape of the arm 2 is specially devised to change the position of the roller brush 5 with respect to the grip 1 (see Patent Documents 1 and 2).

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Patent Document 2

Summary of the Invention

[0005] The special rollers described above were designed specifically for certain painting locations, and were difficult to use when the painting location changed. Therefore, it was sometimes necessary to switch between multiple types of special painting rollers during a series of painting operations that involved painting various areas. The purpose of this invention is to provide a handle for a paint roller that does not need to be replaced even when the painting area changes, and can be made into a shape that is always easy to use. [Means for solving the problem]

[0006] The first invention comprises a rod-shaped grip, a roller support rod that rotatably supports a roller brush for painting, and a bendable rod provided between the grip and the roller support rod, which is made of a material that can be plastically deformed by bare hands.

[0007] The second invention provides a rod-shaped connecting member that protrudes from the grip along the direction of the grip's axis, has one end of the bendable rod attached to its end, and has higher bending rigidity than the bendable rod.

[0008] The third invention is that the bendable rod is an annealed wire having a coating layer, and the coating layer is made of a metal having higher bending rigidity than the annealed wire.

[0009] The fourth invention is that the roller support rod has two L-shaped sides, with the end of the rod-shaped portion of one side attached to the bendable rod, and the rod-shaped portion of the other side rotatably supporting the roller brush. [Effects of the Invention]

[0010] According to the first invention, the relative positions of the grip and the roller brush can be freely changed by bending the bendable rod. Therefore, it can be made into a shape that is easy to use when painting any surface, and the operator does not have to assume an unnatural position. Furthermore, since the handle shape can be changed depending on the area being painted, there is no need to change the paint roller every time the area being painted changes. As a result, worker fatigue is reduced, and the work efficiency, work quality, and finish of the painted surface are all improved.

[0011] According to the second invention, one end of the bendable rod is fixed with a connecting member having high bending rigidity. Because the connecting member is difficult to bend, when the roller brush is pressed against the surface to be painted, the end of the bendable rod does not bend and the roller brush does not bounce, making painting easier.

[0012] According to the third invention, the combination of annealed wire and coating layer allows for appropriate adjustment of the bendability and bending strength of the bendable rod.

[0013] According to the fourth invention, when attaching the roller brush to the other side of the roller support rod, one side can be held down, making it easier to attach the roller brush. [Brief explanation of the drawing]

[0014] [Figure 1] Figure 1 is a plan view of the handle of a painting roller according to an embodiment of the present invention. [Figure 2] Figure 2 is an external perspective view showing a modified example of the handle shown in Figure 1. [Figure 3] Figure 3 is a side view showing an example of using a handle modified as shown in Figure 2. [Figure 4] Figure 4 shows an example of use with a different variation of the handle shown in Figure 1. [Figure 5] Figure 5 is a plan view of a typical painting roller. [Modes for carrying out the invention]

[0015] [Configuration of the Embodiment] An embodiment of this invention will be explained using Figures 1 to 4. Figure 1 is a plan view of the handle of the painting roller in this embodiment. Figures 2 and 3 are diagrams showing modified examples and usage examples of the handle, and Figure 4 is another usage example.

[0016] The handle shown in Figure 1 includes a resin grip 1 that a painting operator holds by hand, a roller support rod 6 that rotatably supports the roller brush 5, and a flexible rod 7 that is connected between the grip 1 and the roller support rod 6 via connecting members 8 and 9. The roller support rod 6 has a substantially L-shaped configuration with rod-shaped portions 6a and 6b on two sides, and is a metal rod member having a certain strength, similar to the conventional arm 2.

[0017] Also, the flexible rod 7 is formed of a material that can be plastically deformed by hand. Here, a wire whose outer periphery of a namashi wire is coated with a chromium plating layer is used. The namashi wire is made from annealed wire, and is a wire that is softened by gradually cooling a heated metal wire, making it easy to plastically deform. By plating such a namashi wire with chromium having a higher bending rigidity than the namashi wire, appropriate rigidity is imparted to the flexible rod 7. Among the members constituting the handle for the paint roller shown in Figure 1, the members other than the flexible rod 7 are made of materials that are difficult to plastically deform by hand.

[0018] A rod-shaped connecting member 8 that protrudes along the axis L is fixed to the end of the grip 1. This connecting member 8 is a metal cylinder into which one end side of the flexible rod 7 is inserted and fixed. The connecting member 8 is made of a material that is difficult to plastically deform by hand, but is composed of a metal having a higher bending rigidity than the flexible rod 7 and is also difficult to elastically deform. Furthermore, on the other end side of the flexible rod 7, a rod-shaped portion 6a that constitutes one side of the roller support rod 6 is attached via a connecting member 9 similar to the connecting member 8.

[0019] [Function, effect, etc.] The handle of the painting roller shown in Figure 1 is used by attaching the roller brush 5 to the rod-shaped portion 6b, which is the other side of the roller support rod 6, as shown by the dashed line. Specifically, the rod-shaped portion 6b is inserted into the axial hole formed in the center of the roller brush 5. In this state, painting can be done by gripping the handle 1 and applying paint to the roller brush 5. However, in this embodiment, the bendable rod 7 can be bent to create a shape that makes the work easier, depending on the area to be painted.

[0020] For example, when painting the exterior wall surface of a balcony, the bendable rod 7 is bent as follows: In Figure 1, the portion of the bendable rod 7 closer to the roller support rod 6 from point P1, which is near the connecting member 8, is bent in the direction of arrow a in the figure and towards the back of the paper. Then, the tip portion from point P2 is bent back in the opposite direction of arrow a to form the shape shown in Figure 2. In the configuration shown in Figure 2, the rod-shaped portion 6b supporting the roller brush 5 and the axis L of the grip 1 are located on different planes and do not intersect. Since the axis of the roller brush 5 (rod-shaped portion 6b) and the axis L of the grip 1 are not on the same plane, as shown in Figure 3, it is easy to avoid contact between the hand holding the grip 1 and the exterior wall B of the veranda when painting the exterior wall B with the roller brush 5. Therefore, the worker's hand will not be forced into an awkward position and become fatigued.

[0021] Furthermore, since the bendable rod 7 can be easily plastically deformed, once the painting of the exterior wall B is finished, the bent bendable rod 7 can be straightened out to create a different shape. As shown in Figure 4, even when painting inside a narrow space C surrounded by walls, the bendable rod 7 can be bent to position the grip 1 in a convenient location outside space C, allowing for easy handling during the work. Therefore, by using the handle of this embodiment, even in work sites where various types of painted surfaces are mixed, it is possible to always use a painting roller with an easy-to-use shape without needing to change tools.

[0022] Furthermore, in this embodiment, the bending rigidity of the connecting member 8 is increased to make it difficult to bend, so that one end of the bendable rod 7 attached to the grip 1 does not bend excessively, and the roller brush 5 does not bounce on the surface to be painted. Also, by directly attaching the bendable rod 7 to the grip 1, it is possible to prevent the force that causes plastic deformation of the bendable rod 7 from being directly transmitted to the grip 1 and damaging the grip 1. Therefore, painting work is easier. If the bending rigidity of the connecting member 8 is low and the amount of elastic deformation is large, the force of the hand holding the grip 1 will not be easily transmitted to the roller brush 5, making it difficult to perform fine work. However, the connecting member 8 is not essential if the rigidity of the bendable rod 7 and the operator's force can be properly controlled.

[0023] Furthermore, the ease with which the bendable rod 7 can be adjusted by the combination of the annealed wire and the coating layer. By providing a coating layer with a high elastic limit and bending rigidity to the annealed wire, which has a low elastic limit and bending rigidity, a suitable balance of bendability and shape retention is achieved. For example, by appropriately selecting the type of metal and wire thickness that make up the annealed wire, and the type of metal and thickness of the coating layer (plating) that make up the coating layer, it is possible to form a bendable rod 7 that can be freely deformed by hand and maintain its shape even during painting.

[0024] Furthermore, in the above embodiment, the roller support rod 6 is provided with rod-shaped portions 6a and 6b consisting of two L-shaped sides, but the roller support rod 6 does not need to be L-shaped. For example, the rod-shaped portion 6b may be attached continuously to the other end of the bendable rod 7. When it is L-shaped as in this embodiment, when inserting the rod-shaped portion 6b into the shaft hole of the roller brush 5, it is possible to apply force by pressing down on one side of the rod-shaped portion 6a, which has the advantage of making it easier to install. [Industrial applicability]

[0025] It is useful for painting sites with a variety of shapes and for painting in confined spaces. [Explanation of Symbols]

[0026] 1 Grip 5. Roller brush 6. Roller support rod 6a (one side) rod-shaped part 6b (the other side) rod-shaped part 7 Bendable rod 8 Connecting members

Claims

1. A rod-shaped grip, A roller support rod that allows a paint roller brush to rotate freely, A bendable rod is provided between the grip and the roller support rod, and is made of a material that can be plastically deformed by bare hands. A handle for a paint roller equipped with [a specific feature / feature].

2. The grip has a rod-shaped connecting member that protrudes from the grip along the axis of the grip, with one end of the bendable rod attached to its end, and which has higher bending rigidity than the bendable rod. A handle for a painting roller as described in claim 1.

3. The above-mentioned bendable rod is an annealed wire having a coating layer. The above coating layer is made of a metal having higher bending rigidity than the above annealed wire. A handle for a paint roller according to claim 1 or 2.

4. The handle for a painting roller according to claim 1 or 2, wherein the roller support rod has two L-shaped sides, the end of the rod-shaped part of one side is attached to the bendable rod, and the rod-shaped part of the other side rotatably supports the roller brush.

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