Clip and painting tool equipped with it

The innovative clip design with interlocking clamping surfaces and rotatable shafts addresses the instability of conventional tools, allowing secure and clean painting of diverse model part shapes.

JP2026048440APending Publication Date: 2026-03-17ETOWARE CO LTD
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Patent Information

Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Filing Date
2024-09-05
Publication Date
2026-03-17

AI Technical Summary

Technical Problem

Conventional painting tools with clips struggle to securely hold various shapes of model parts, such as round bars, spheres, and dowels, leading to instability and paint peeling during application.

Method used

A clip composed of interlocking first and second members with sawtooth, arc-shaped, and hemispherical clamping surfaces, along with rotatable shafts, allows for stable gripping of different shapes by forming columnar and spherical clamping gaps.

Benefits of technology

The clip provides optimal holding for various part shapes, ensuring secure attachment and preventing paint peeling, enabling clean and stable painting from multiple angles.

✦ Generated by Eureka AI based on patent content.

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Abstract

We propose a novel technology for paint tools with clips. [Solution] A clip for holding and gripping a part, comprising a first member, a second member, and a shaft portion that rotatably connects the two, wherein a columnar first support shaft is formed by the tips of the first member and the second member when the clip is closed. When the clip is closed, a columnar second support shaft is formed at a position further from the tip than the first support shaft and is thicker than the first support shaft.
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Description

Technical Field

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[0001] The present invention relates to a painting tool with a clip used when painting parts of a model such as a plastic model without getting the hands dirty, by spraying or the like.

Background Art

[0002] Conventionally, as disclosed in Patent Document 1 for example, there is known a painting tool provided with a clip for holding a part at the tip of a rod-shaped handle when painting parts of a model such as a plastic model.

Prior Art Document

Patent Document

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] The clip as described in Patent Document 1 can only hold and retain a part, and it was difficult to paint the held part of the part. When painting this part, it is conceivable to re-hold another location with the clip and paint it, but there is a concern that the paint will peel off when held.

[0005] Another problem is that many of the conventional clip shapes are diverted from so-called alligator clips and are not designed to hold parts of a plastic model, so they can only be held in limited locations. For this reason, there are also problems such as the size and shape of the parts not matching, the holding becoming unstable depending on the location to be held, and not being able to ensure sufficient gripping force.

[0006] Another problem is that since the parts to be held may be in the form of a round bar, a sphere, a dowel, etc., it is preferable to be able to suitably correspond to each shape so that the parts can be stably held.

[0007] To solve the above problems, this invention proposes a novel technology relating to a painting tool with a clip. [Means for solving the problem]

[0008] The problems that this invention aims to solve are as described above, and the means for solving these problems will now be explained.

[0009] According to one aspect of the present invention, a clip for holding and securing a part, It is composed of a first member, a second member, and a shaft portion that rotatably connects the two, The clip is such that, when the clip is closed, the tips of the first and second members form a columnar first support shaft.

[0010] Furthermore, according to one aspect of the present invention, when the clip is closed, a columnar second support shaft is formed at a position further from the tip than the first support shaft, and is thicker than the first support shaft.

[0011] Furthermore, according to one aspect of the present invention, a first clamping surface having a sawtooth shape in a side view is formed on the first member and the second member at opposing points on the tip side, and a first clamping portion is formed in which the first clamping surfaces interlock without gaps when the clip is closed.

[0012] Furthermore, according to one aspect of the present invention, a second clamping surface is formed on the first member and the second member at opposing points on the tip side, with the second clamping surface forming an arc-shaped bottom surface in a side view, thereby forming a second clamping portion in which an elliptical clamping gap is formed by the second clamping surface when the clip is closed.

[0013] Further, according to one aspect of the present invention, on the tip end side of the second member, a third clamping surface having a crater shape that is recessed in a substantially hemispherical shape on a flat surface is formed at a position facing the first member, and a third clamping portion is configured in which a spherical clamping gap is formed by the third clamping surface when the clip is closed.

[0014] Further, according to one aspect of the present invention, a painting tool having a clip and a handle to which the clip is attached at the tip end is provided.

Advantages of the Invention

[0015] The present invention has the following effects. That is, according to one aspect of the present invention, it is possible to configure a clip capable of realizing optimal holding according to the type of each part.

Brief Description of the Drawings

[0016] [[ID=??]] [[ID=??]] [Figure 1] A diagram showing an overview of the painting tool. [[ID=??]] [[ID=??]] [Figure 2] A diagram showing the clip in a closed state. [[ID=??]] [[ID=??]] [Figure 3] A diagram showing the clip in an open state. [[ID=??]] [[ID=??]] [Figure 4] A diagram for explaining the holding of parts by the first clamping portion. [[ID=??]] [[ID=??]] [Figure 5] A diagram for explaining the holding of parts by the second clamping portion. [[ID=??]] [[ID=??]] [Figure 6] A diagram for explaining the holding of parts by the third clamping portion. [[ID=??]] [[ID=??]] [Figure 7] A diagram for explaining the holding of parts by the first support shaft. [[ID=??]] [[ID=??]] [Figure 8] A diagram for explaining the holding of parts by the second support shaft. [[ID=??]] [[ID=??]]

Embodiments for Carrying Out the Invention

[0017] [[ID=??]] FIG. 1 is a diagram showing a painting tool 10 according to an embodiment of the present invention. [[ID=??]] The painting tool 10 includes a clip 20 and a handle 30 that fixes the clip 20 to the tip end. It should be noted that the tags with "??" in the above translation are those where the original tag numbers seem to be incorrect or not in a standard format. If there are specific corrections or additional information for these tags, the translation can be further refined. Clip 20 is for holding, for example, a part P cut from a runner not shown in the figure or an assembly of a plurality of parts, and the tip of the handle 30 is connected to the rear end side of the clip 20. The rear end of the painting tool 10 can be inserted into the insertion hole 3a formed in the stand 3, so that the handle 30 can be placed upright and the painted part P can be dried.

[0018] The handle 30 is composed of a rod-shaped member that can be grasped and held by the user's finger during painting. For example, it can be made of metal such as stainless steel, or it can be made of bamboo.

[0019] As shown in FIGS. 2 and 3, the clip 20 includes a first member 21, a second member 22, and a shaft portion 23 that rotatably connects the two. A coil spring (not shown) is wound around the shaft portion 23, and the coil spring biases the tips of the first member 21 and the second member 22 to be always closed. The tip of the handle 30 is connected to the rear end portion of the second member 22. The second member 22 may be configured to be detachable from the tip of the handle 30 so that the entire clip 20 can be removed from the handle 30.

[0020] As shown in FIG. 3, inside the tip portion of the first member 21, a first clamping surface 21a, a second clamping surface 21b, and a third clamping surface 21c are formed in order from the tip side. The first clamping surface 21a is configured to form a fine sawtooth blade shape (zigzag unevenness) in a side view. The second clamping surface 21b is configured to form a single arc-shaped bottom surface in a side view. The third clamping surface 21c is configured to form a bottom surface having a crater shape that is recessed in a substantially hemispherical shape on a flat surface.

[0021] Similarly, as shown in FIG. 3, inside the tip portion of the second member 22, a first clamping surface 22a, a second clamping surface 22b, and a third clamping surface 22c are formed in order from the tip side. The first clamping surface 22a is configured to form a fine sawtooth shape (jagged irregularities) when viewed from the side. The second clamping surface 22b is configured to form a single arc-shaped base surface when viewed from the side. The third clamping surface 22c is configured to form a bottom surface that has a crater shape, which is a roughly hemispherical depression on the flat surface.

[0022] As shown in Figure 2, the first clamping surface 21a of the first member 21 and the first clamping surface 22a of the second member 22 are configured to interlock without any gaps when the clip 20 is closed, and the first clamping portion 20A is formed at the very tip of the clip 20.

[0023] As shown in Figure 2, the second clamping surface 21b of the first member 21 and the second clamping surface 22b of the second member 22 are configured such that, when the clip 20 is closed, an elliptical clamping gap S2 is formed in a side view by the arc-shaped bottom surfaces of both. The portion that constitutes this clamping gap S2 constitutes the second clamping portion 20B.

[0024] As shown in Figure 2, the third clamping surface 21c of the first member 21 and the third clamping surface 22c of the second member 22 are configured such that a spherical clamping gap S3 is formed when the clip 20 is closed, due to the crater-shaped bottom surfaces of both. The portion that constitutes this clamping gap S3 forms the third clamping portion 20C.

[0025] As shown in Figure 3, the outer surface of the tip of the first member 21 is configured to form a semicircular circumferential surface, with a small-diameter portion 21d having a small radius and a large-diameter portion 21e having a larger radius than the small-diameter portion 21d, starting from the tip side. On the first member 21, a pressing portion 21f that is pressed by a finger is formed on the rear end side of the large-diameter portion 21e, and the pressing portion 21f has a larger outer diameter than the large-diameter portion 21e.

[0026] Similarly, the outer surface of the tip of the second member 22 is configured to form a semicircular circumferential surface, with a small-diameter portion 22d having a small radius forming the circumferential surface, and a large-diameter portion 22e having a larger radius forming the circumferential surface than the small-diameter portion 22d, starting from the tip side. On the second member 22, a pressing portion 22f that is pressed by a finger is formed on the rear end side of the large-diameter portion 21e, and the pressing portion 22f has a larger outer diameter than the large-diameter portion 22e.

[0027] As shown in Figure 3, the pressing portion 21f of the first member 21 and the pressing portion 22f of the second member 22 face each other, and when the clip 20 is opened, the pressing portion 21f of the first member 21 approaches the pressing portion 22f of the second member 22, causing the tip of the clip 20 to open. The pressing portion 22f of the second member 22 has an arc-shaped recessed portion 22m formed to prevent interference with the pressing portion 21f of the first member 21. The formation of this recessed portion 22m allows the pressing portion 21f of the first member 21 to move more, and the opening degree of the clip 20 can be increased.

[0028] As shown in Figure 2, when the clip 20 is closed, the circumferential surfaces of the small-diameter portion 21d of the first member 21 and the small-diameter portion 22d of the second member 22 are continuous, forming a substantially cylindrical first support shaft 20D. The diameter of the first support shaft 20D is set to, for example, 2 mm. The first support shaft 20D may have a taper, with its diameter gradually increasing from the tip toward the second support shaft 20E. In addition to being configured as a cylinder with a perfectly circular cross-section, the first support shaft 20D may also have other columnar shapes, such as an elliptical or square cross-section.

[0029] Similarly, when the clip 20 is closed, the circumferential surfaces of the large-diameter portion 21e of the first member 21 and the large-diameter portion 22e of the second member 22 are continuous, forming a substantially cylindrical second support shaft 20E. The thickness (diameter) of the second support shaft 20E is set to be larger than that of the first support shaft 20D, for example, to 3 mm. The second support shaft 20E may have a taper, with its diameter gradually increasing in the direction away from the first support shaft 20D. In addition to being configured as a cylinder with a perfectly circular cross-section, the second support shaft 20E may also have other columnar shapes, such as an elliptical or square cross-section.

[0030] As shown in Figure 2, a step D1 is formed at the boundary between the first support shaft 20D and the second support shaft 20E, and as will be described in more detail later, a part of the component can be locked onto this step D1. In addition, a step D2 is formed at the rear end of the second support shaft 20E, and as will be described in more detail later, a part of the component can be locked onto this step D2.

[0031] An example of using the painting rod configured as described above is explained below. As shown in Figure 4, the first clamping portion 20A can clamp the plate-shaped portion of part P1. Since the first clamping portion 20A is composed of saw-tooth shaped clamping surfaces, it can stably and securely hold the plate-shaped portion of part P1 without shifting, and it can also prevent part P1 from coming off due to the air pressure of the spray. In addition, the first clamping surfaces 21a and 22a of the first members 21 and 22 are designed to taper towards the tip, and a spring with strong biasing force is used in the shaft portion 23 (Figure 2), so that the first clamping portion 20A can securely clamp small protrusions and small parts of the part, and can also be inserted and clamped in small gaps.

[0032] As shown in Figure 5, the second clamping portion 20B can clamp the cylindrical portion of part P2. Since the second clamping portion 20B forms an elliptical clamping gap S2 (Figure 2), the plate-shaped portion of part P2 can be held stably and securely without shifting, and part P2 can not be detached due to the air pressure of the spray.

[0033] Furthermore, the cylindrical portion of part P2 can be held at any angle around its axial direction, and by adjusting it to the optimal angle for painting, part P2 can be painted cleanly. In addition, cylindrical portions of various diameters can be firmly and securely gripped, and if part P2 is a runner, for example, the main body of the part connected to the runner can be painted cleanly.

[0034] As shown in Figure 6, the third clamping portion 20C can clamp the spherical portion Pq of part P3. This spherical portion Pq functions, for example, as a so-called "ball joint".

[0035] The third clamping portion 20C forms a spherical clamping gap S3 (Figure 2), which allows it to stably and securely hold the spherical portion Pq of part P3 without shifting, and also prevents part P3 from coming off due to the air pressure of the spray. Furthermore, it can hold the spherical portion Pq of part P3 at any angle, and by adjusting it to the optimal angle for painting, part P3 can be painted cleanly. In addition, it can firmly and securely clamp spherical portions of various diameters, and allows for clean painting of part P3 connected to the spherical portion Pq.

[0036] As shown in Figure 7, the first support shaft 20D can hold part P4 without pinching it by being inserted into a dowel hole 44a formed in part P4. This dowel 44a is a hole used to connect with other parts, and in the example in Figure 7, it is formed in the cylindrical portion 44.

[0037] The diameter of the dowel hole 44a is, for example, 2 mm, and the part P4 can be held by fitting the first support shaft 20D into it. Since the part P4 can be held using the dowel hole 44a, the rest of the part P4 is not hidden by the clamping of the clip 20, and the part P4 can be painted from all directions. In addition, the part P4 can also be held stably by the dowel hole 44a abutting against the step D1 (Figure 2).

[0038] As shown in Figure 8, the second support shaft 20E is inserted into the through hole 54 formed in part P5, thereby holding part P5 without pinching it. This part P5 is commonly called a "poly cap" and serves the function of joining the joints of plastic models such as robots.

[0039] The diameter of the through-hole 54 is, for example, 3 mm, and the part P5 can be held by fitting the second support shaft 20E into it. Since the part P5 can be held using the through-hole 54, the other parts of the part P5 are not hidden by the clamping of the clip 20, and the part P5 can be painted from all directions. Furthermore, the part P5 can also be held stably by the through-hole 54 abutting against the step D2 (Figure 2).

[0040] As described above, according to the present invention, a clip capable of achieving optimal retention according to the type of part can be constructed. Specifically, as shown in Figures 1 to 3 and Figure 7, the clip for holding and securing a part comprises a first member 21, a second member 22, and a shaft portion 23 that rotatably connects the two. When the clip is closed, the tips of the first member 21 and the second member 22 form a columnar first support shaft 20D.

[0041] Furthermore, as shown in Figures 1 to 3 and Figure 8, when the clip is closed, a columnar second support shaft 20E is formed at a position further from the tip than the first support shaft 20D, and is thicker than the first support shaft 20D.

[0042] Furthermore, as shown in Figures 1 to 3 and Figure 6, the first member 21 and the second member 22 have opposing first clamping surfaces 21a and 22a, respectively, which have a sawtooth shape in a side view. When the clip is closed, the first clamping surfaces 21a and 22a interlock without any gaps to form a first clamping portion 20A.

[0043] Furthermore, as shown in Figures 1 to 3 and Figure 7, the first member 21 and the second member 22 have opposing second clamping surfaces 21b and 22b, respectively, which form an arc-shaped bottom surface in a side view. When the clip is closed, the second clamping portion 20B is formed by the second clamping surfaces 21b and 22b, creating an elliptical clamping gap S2.

[0044] Furthermore, as shown in Figures 1 to 3 and Figure 6, third clamping surfaces 21c and 22c are formed at the opposing ends of the first member 21 and the second member 22, respectively, forming a crater shape that is substantially hemispherical indentation on a flat surface. When the clip is closed, the third clamping portion 20C is formed by the third clamping surfaces 21c and 22c, creating a spherical clamping gap S3.

[0045] Furthermore, the first support shaft 20D, second support shaft 20E, first clamping portion 20A, second clamping portion 20B, and third clamping portion 20C described above are to be provided in their entirety, or some of them may be provided. For example, a combination of the first support shaft 20D, second support shaft 20E, and first clamping portion 20A, or a configuration in which only the third clamping portion 20C is provided, may be used. [Explanation of symbols]

[0046] 3 Stands 3a Insertion hole 10 Painting sticks 20 clips 20A 1st clamping part 20B 2nd clamping part 20C 3rd clamping part 20D 1st support shaft 20E 2nd support shaft 21 First Member 21a 1st clamping surface 21b Second clamping surface 21c Third clamping surface 21d Small diameter section 21e Large diameter section 21f Pressing part 22 Second Member 22a 1st clamping surface 22b Second clamping surface 22c 3rd clamping surface 22d Small diameter section 22e Large diameter section 22f Pressing part 23 Shaft section 30 patterns 44a Dowel holes 54 Through hole D1 Step D2 Step P Parts P1 Parts P2 Parts P3 Parts P4 Parts P5 Parts S2 Clamping gap S3 Clamping gap

Claims

1. A clip that holds and secures parts, It is composed of a first member, a second member, and a shaft portion that rotatably connects the two, A clip in which, when the clip is closed, the tips of the first and second members form a columnar first support shaft.

2. With the clip closed, a columnar second support axis is formed at a position further from the tip than the first support axis, and is thicker than the first support axis. The clip according to feature 1.

3. The first member and the second member have opposing portions on their tip sides, each having a first clamping surface that forms a sawtooth shape in side view, and when the clip is closed, the first clamping surfaces interlock without any gaps to form a first clamping portion. The clip according to claim 1 or 2.

4. The first member and the second member have opposing portions on their tip sides, each having a second clamping surface that forms an arc-shaped bottom surface in a side view. When the clip is closed, the second clamping portion is formed by the second clamping surface, creating an elliptical clamping gap. The clip according to claim 1 or 2.

5. The first member and the second member have opposing portions on their tip sides, each having a third clamping surface that forms a roughly hemispherical crater shape on a flat surface. When the clip is closed, the third clamping surface forms a spherical clamping gap, thus creating a third clamping portion. The clip according to claim 1 or 2.

6. The first member and the second member have opposing portions on their tip sides, each having a second clamping surface that forms an arc-shaped bottom surface in a side view. When the clip is closed, the second clamping portion is formed by the second clamping surface, creating an elliptical clamping gap. The clip according to feature 3.

7. The first member and the second member have opposing portions on their tip sides, each having a third clamping surface that forms a roughly hemispherical crater shape on a flat surface. When the clip is closed, the third clamping surface forms a spherical clamping gap, thus creating a third clamping portion. The clip according to feature 4.

8. The first member and the second member have opposing portions on their tip sides, each having a second clamping surface that forms an arc-shaped bottom surface in a side view. When the clip is closed, the second clamping portion is formed by the second clamping surface, creating an elliptical clamping gap. The clip according to feature 5.

9. The first member and the second member have opposing portions on their tip sides, each having a third clamping surface that forms a roughly hemispherical crater shape on a flat surface. When the clip is closed, the third clamping surface forms a spherical clamping gap, thus creating a third clamping portion. The clip according to feature 6.

10. A clip according to claim 1 or claim 2, A handle to which the aforementioned clip is attached at the tip, Painting tools that have

11. The clip according to claim 9, A handle to which the aforementioned clip is attached at the tip, Painting tools that have

Citation Information

Patent Citations

  • Clip for assembly model

    JP3216887U