Cap for paint container
The paint container lid with a flexible, bellows-like design and a jet hole mechanism addresses the issue of paint drying and easy extraction, ensuring efficient paint usage and minimizing exposure to air, thus preventing paint from drying out.
Patent Information
- Application Number
- JP2023043756
- Authority / Receiving Office
- JP · JP
- Patent Type
- Patents
- Current Assignee / Owner
- Filing Date
- 2023-03-20
- Publication Date
- 2025-04-23
- Estimated Expiration
- 2043-03-20
AI Technical Summary
Conventional paint containers cannot prevent paint from drying due to exposure to air through small holes in the lid, and their complex structure makes it difficult to create a functional container.
A paint container lid with a planar shape and a flexible, bellows-like expandable portion that fits over the container opening, featuring a jet hole for easy paint extraction and a long handle for convenient operation, along with a long-term storage lid to seal the ejection hole.
The lid effectively prevents paint from drying by minimizing air exposure and allows easy extraction of the required paint amount without spilling, while the bellows-like shape aids in removing excess paint from tools and the long handle keeps hands clean.
Smart Images

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Abstract
Description
[Technical field]
[0001] The present invention relates to a lid for a paint container for storing paint therein, which prevents the paint inside the paint container from drying out while allowing the paint to be easily removed in the required amount. [Background technology]
[0002] A conventional paint container is described in Patent Document 1. The paint container described in Patent Document 1 includes an inner lid that covers the paint from above at a vertical midpoint of the container body that contains the paint, has a plurality of small holes formed therein that limit the passage of the paint, and tilts in accordance with the tilt of the container body, and a spring that returns the inner lid to the midpoint position by an elastic restoring force provided between the inner lid and the container body, and the inner lid can be pushed down to dip a brush into the paint. [Prior art documents] [Patent documents]
[0003] [Patent Document 1] JP 2013-59898 A Summary of the Invention [Problem to be solved by the invention]
[0004] However, the paint container described in Patent Document 1 cannot prevent the paint inside the container from drying out because the entire surface of the paint inside the container is constantly exposed to air circulating through multiple small holes in the inner lid.
[0005] In addition, in order to ensure that the spring can always expand and contract in the vertical direction, the lower end of the spring needs to be fixed to the bottom of the paint container, and the upper end of the spring needs to be fixed to the underside of the inner lid, and it is difficult to create a container with such a structure.
[0006] The present invention has been made in consideration of the above circumstances, and aims to provide a lid for a paint container that has a simple shape, can prevent the paint inside the paint container from drying out, and allows the required amount of paint to be easily removed. [Means for solving the problem]
[0007] In order to solve the above problems, the paint container lid of the present invention is a lid for a paint container that opens at the top and stores paint inside, and comprises a lid main body portion that is flat and has an outer periphery smaller than the inner periphery of the paint container, a lid outer periphery portion that can be fitted around the edge of the opening of the paint container over its entire circumference, and an expansion and contraction portion that is expandable and flexible and extends from the outer periphery of the lid main body portion to the lid outer periphery, and is characterized in that the lid main body portion is provided with an ejection portion that protrudes upward and has an ejection hole that penetrates the lid main body portion in the vertical direction, and when the lid outer periphery portion is fitted around the edge, the lid main body portion can be lowered to the bottom of the inside of the paint container.
[0008] Furthermore, the entirety or a part of the stretchable portion may be formed in a bellows shape.
[0011] Furthermore, the spray portion is provided with a long handle.
[0012] The container further includes a long-term storage lid that covers the nozzle hole from above and seals the nozzle hole.
[0013] Furthermore, the long-term storage lid is characterized in that an inner peripheral surface of the long-term storage lid and an outer peripheral surface of the ejection portion are provided with female threads and male threads, and the long-term storage lid can be screwed onto the ejection portion. Effect of the Invention
[0014] According to the paint container lid of the present invention, when the lid body part is pressed downward with the lid outer periphery fitted to the edge of the opening of the paint container, the paint inside the paint container is pushed downward by the lid body part, and the paint that has nowhere to go spills out from the nozzle of the spray part above the lid body part, and the paint accumulates between the spray part and the expandable part above the lid body part. When the lid body part is pressed down and the lower surface of the lid body part is in a state where it ... Therefore, only the required amount of paint can be easily dispensed between the spray portion and the extension portion above the lid body.
[0015] In addition, when the lid body is pressed down and the underside of the lid body is in the paint, the paint inside the paint container comes into contact with air through the space between the expandable part and the inside surface of the paint container and through the nozzle. As described above, the air in the space between the expandable part and the inside surface of the paint container is sealed and does not circulate, so the only place where the paint comes into contact with the circulating air and dries is through the nozzle, which significantly prevents the paint from drying out.
[0016] Furthermore, by forming the entire or part of the telescopic portion into a bellows shape, it is possible to immerse a paint application tool such as a brush or roller into the paint that has accumulated between the spray portion above the lid main body and the telescopic portion, and then rub the application tool against the bellows-shaped portion of the telescopic portion to remove excess paint from the application tool.
[0020] Furthermore, an operator can grasp the long handle to move the lid body or the paint container lid up and down without getting his hands dirty with paint.
[0021] Furthermore, by covering the spray hole with the long-term storage lid, the paint that accumulates below the lid body can be stored for a long period of time.
[0022] Furthermore, by screwing the long-term storage lid onto the spray portion to cover the spray hole, the paint that accumulates below the lid main body can be tightly sealed, and the spray hole will not come loose even if the container is knocked over or otherwise impacted. [Brief description of the drawings]
[0023] [Figure 1] 1 is a cross-sectional view showing a state in which a paint container lid according to a first embodiment of the present invention is attached to a paint container. [Diagram 2] 3 is a cross-sectional view showing a state in which paint is removed using the paint container lid according to the first embodiment of the present invention. FIG. [Diagram 3] 1 is a cross-sectional view showing how paint is used to the last drop by using the paint container lid according to the first embodiment of the present invention. FIG. [Figure 4] 4 is a cross-sectional view showing a state in which a paint container lid according to a second embodiment of the present invention is attached to a paint container. FIG. [Diagram 5] 5 is a cross-sectional view showing a state in which paint is removed using a paint container lid according to a second embodiment of the present invention. FIG. [Figure 6] 5 is a cross-sectional view showing how paint is used to the last drop by using a paint container lid according to a second embodiment of the present invention. FIG. [Figure 7] FIG. 4 is a cross-sectional view showing a paint container lid according to a third embodiment of the present invention. [Figure 8] FIG. 4 is a cross-sectional view showing a paint container lid according to a third embodiment of the present invention. [Figure 9] FIG. 2 is a cross-sectional view showing the long-term storage lid of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
[0024] The first to third embodiments of the paint container lid according to the present invention will be described below with reference to the drawings. However, the following is merely an example of one embodiment of the present invention, and the scope of the present invention is not limited to the following first to third embodiments, and can be appropriately modified without departing from the concept of the present invention.
[0025] First, the paint container lid 100a of the first embodiment will be described. The paint container 8 for which the paint container lid 100a is used is a circular bucket-shaped container that opens upward and stores paint 9 inside 83, as shown in Fig. 1, and has a rim 82 around the entire periphery of its upper end in order to open upward. The rim 82 of the opening 81 of the paint container 8 is bent so as to be rounded toward the outside of the paint container 8, and its cross section is formed into a circular shape.
[0026] The paint container lid 100a is a polyethylene lid that is attached and fixed to the paint container 8 from above, as shown in FIG.
[0027] 1, the lid body 1a has a flat shape whose outer periphery is smaller than the inner periphery of the interior 83 of the paint container 8, and is formed so as to be able to be lowered from above the paint container 8 to the bottom 85 of the interior 83 of the paint container 8. A jet part 11a is provided in the center of the lid body 1a, protruding upward and having a jet hole 12a that vertically penetrates the lid body 1a.
[0028] As shown in Figure 1, the lid outer peripheral portion 2a is shaped to surround and fit around the edge 82 of the opening 81 of the paint container 8 from the outside, and the paint container lid 100a can be fixed to the paint container 8 by pressing it from above against the edge 82 of the paint container 8 and fitting it around the entire circumference of the edge 82.
[0029] 1, the stretchable portion 3 is a portion that extends from the outer peripheral end 13a of the lid main body portion 1a to the lid outer peripheral portion 2a, and is entirely formed in a bellows shape. The stretchable portion 3 is stretchable and flexible because it is formed in a bellows shape, and is flexible because it is made of polyethylene.
[0030] When the lid body 1a of the paint container lid 100a is pressed downward toward the bottom 85 of the paint container 8 while it is attached and fixed to the paint container 8 as shown in Fig. 1, the expandable part 3 extends downward and the lid body 1a moves downward below the paint container 8 as shown in Fig. 2. At this time, the paint 9 in the inside 83 of the paint container 8 pressed downward by the lid body 1a has nowhere to go, so it overflows above the lid body 1a through the outlet 12a of the outlet part 11a and accumulates in the space 71 between the outlet part 11a and the expandable part 3 above the lid body 1a.
[0031] 2, when the lid body 1a is pushed down and the underside 14a of the lid body 1a is in the paint 9, a space 72 in which air is sealed is formed between the expandable part 3 and the inner side surface 84 of the paint container 8. Therefore, by stopping the downward pushing of the lid body 1a, the lid body 1a floats slightly upward due to the buoyancy of the space 72 between the expandable part 3 and the inner side surface 84 of the paint container 8, and the surface 91 of the paint 9 that filled the spray hole 12a drops downward. Therefore, even if the paint container 8 is tilted slightly, the paint 9 does not spill out of the spray hole 12a.
[0032] 2, when the lid body 1a is pressed down and the underside 14a of the lid body 1a is in a state where it is wet with the paint 9, the paint 9 in the inside 83 of the paint container 8 comes into contact with air in the space 72 between the expandable portion 3 and the inner side surface 84 of the paint container 8 and the inside of the nozzle hole 12a. At this time, since the space 72 between the expandable portion 3 and the inner side surface 84 of the paint container 8 is sealed as described above, the paint 9 does not dry from the surface 92 of the paint 9 facing this space 72, but dries only from the surface 91 of the paint 9 formed inside the nozzle hole 12a, so that drying of the paint 9 can be largely prevented.
[0033] Then, a paint application tool such as a brush or roller (not shown) is immersed in the paint 9 accumulated between the upper spray portion 11a of the lid main body portion 1a and the extendable portion 3 (71), and the excess paint 9 on the application tool is removed by rubbing the application tool against the bellows of the extendable portion 3, and the paint 9 can be applied to an object (not shown) using the application tool.
[0034] Furthermore, as shown in Figure 3, the extension portion 3 can be extended or retracted until the lid main body portion 1a reaches the bottom 85 of the interior 83 of the paint container 8. If the paint 9 between the upper spray portion 11a of the lid main body portion 1a and the extension portion 3 runs out when the lid main body portion 1a reaches the bottom 85 of the interior 83 of the paint container 8, the paint container lid 100a can be removed from the paint container 8 to use all of the paint 9.
[0035] Next, a paint container lid 100b according to a second embodiment will be described. The paint container 8 in which the paint container lid 100b is used is the same as the paint container 8 described in the first embodiment, and therefore a description thereof will be omitted.
[0036] The paint container lid 100b is a polyethylene lid that is attached and fixed to the paint container 8 from above, as shown in FIG. 4, and includes a lid main body 1b, a lid outer periphery 2b, and a lid rising portion 4.
[0037] 4, the lid body 1b has a flat shape whose outer periphery is smaller than the inner periphery of the interior 83 of the paint container 8, and is formed so as to be able to be lowered from above the paint container 8 to the bottom 85 of the interior 83 of the paint container 8. A jet portion 11b is provided at the center of the lid body 1b, protruding upward and having jet holes 12b penetrating the lid body 1b in the vertical direction.
[0038] 4, the lid outer peripheral portion 2b is formed in a C-shape that opens downward, and is made of polyethylene, and is therefore flexible. The outer periphery of the lid outer peripheral portion 2b is formed to be larger than the inner periphery of the interior 83 of the paint container 8, so that the outer surface of the outer periphery 21b, which is the outer edge of the lid outer peripheral portion 2b, is formed to be in pressure contact with the inner side surface 84 of the paint container 8 over its entire periphery, and the lid outer peripheral portion 2b is in pressure contact with the inner side surface 84 of the paint container 8, so that the paint container lid 100b can be attached to the paint container 8.
[0039] As shown in FIG. 4, the lid rising portion 4 is a portion that bends upward from the outer peripheral end 13b of the lid main body portion 1b higher than the upper end 15b of the spray portion 11b and extends to the lid outer peripheral portion 2b, and has a step portion 41 formed in a staircase shape.
[0040] When the paint container lid 100b is pressed downward toward the bottom 85 of the paint container 8 while attached to the paint container 8 as shown in Fig. 4, the entire paint container lid 100b moves downward as shown in Fig. 5. At this time, the paint 9 in the inside 83 of the paint container 8 pressed downward by the lid main body 1b has nowhere to go, so it passes through the nozzle 12b of the nozzle part 11b and overflows above the lid main body 1b, and accumulates in the space 73 between the nozzle part 11b and the lid rising part 4 above the lid main body 1b.
[0041] As shown in Fig. 5, when the paint container lid 100b is pressed down and the lower surface 14b of the lid body 1b is in a state where it is in contact with the paint 9, a space 74 in which air is sealed is formed between the lid rising portion 4 and the inner surface 84 of the paint container 8. Therefore, by stopping the downward pressing of the paint container lid 100b, the paint container lid 100b is slightly raised upward by the buoyancy of the space 74 between the lid rising portion 4 and the inner surface 84 of the paint container 8, and the surface 93 of the paint 9 that filled the nozzle hole 12b is lowered downward. Therefore, even if the paint container 8 is tilted slightly, the paint 9 does not spill from the nozzle hole 12b.
[0042] 5, when the paint container lid 100b is pressed down and the lower surface 14b of the lid body 1b is in a state where it is in contact with the paint 9, the paint 9 in the interior 83 of the paint container 8 comes into contact with air in the space 74 between the lid rising portion 4 and the inner surface 84 of the paint container 8 and the inside of the ejection hole 12b. At this time, as described above, the space 74 between the lid rising portion 4 and the inner surface 84 of the paint container 8 is sealed and does not circulate, so the paint 9 does not dry from the surface 94 of the paint 9 facing this space 74, and the paint 9 dries only from the surface 93 of the paint 9 formed inside the ejection hole 12b, so that drying of the paint 9 can be largely prevented.
[0043] Then, an applicator for applying paint 9, such as a brush or roller (not shown), is immersed in the paint 9 that has accumulated between the upper spray portion 11b of the lid main body portion 1b and the lid rise portion 4 (73), and the excess paint 9 on the applicator is removed by rubbing the applicator against the stepped portion 41 of the lid rise portion 4, and the paint 9 can be applied to an object (not shown) using the applicator.
[0044] Furthermore, when the lid main body portion 1b is in contact with the bottom 85 of the interior 83 of the paint container 8 as shown in Figure 6, if the paint 9 runs out between the upper spray portion 11b of the lid main body portion 1b and the lid rising portion 4, the paint container lid 100b can be removed from the paint container 8 to use all of the paint 9.
[0045] Next, a paint container lid 100c of the third embodiment will be described. The paint container 8 in which the paint container lid 100c is used is the same as the paint container 8 described in the first embodiment, so a description thereof will be omitted. Also, the paint container lid 100c is obtained by adding new elements to the paint container lid 100b described in the second embodiment, so a description of the same parts as the paint container lid 100b will be omitted.
[0046] The paint container lid 100c further includes a handle 5 and a long-term storage lid 6. As shown in Fig. 7 and Fig. 8, the handle 5 is a long rod-shaped member bent into a substantially C-shape, and both ends of the handle are rotatably fixed to the ejection part 11b. An operator can press the paint container lid 100c downward without soiling his / her hands with the paint 9 by grasping the handle 5 and pushing it downward, and conversely, can pull the paint container lid 100c upward without soiling his / her hands with the paint 9 by grasping the handle 5 and pulling it upward.
[0047] 8, the handle 5 is formed long so as to abut against the outer periphery 2b of the paint container lid 100c when rotated and laid down, thereby preventing the paint 9 from adhering to the gripping portion of the handle 5. In other words, the worker is prevented from indirectly soiling his / her hands with the paint 9 by gripping the handle 5.
[0048] As shown in Figure 7, the long-term storage lid 6 is a lid body that covers the spray hole 12b from above. When work is completed without using up the paint 9 below the lid main body portion 1b and the paint 9 below the lid main body portion 1b is to be stored, the long-term storage lid 6 can be used to cover the spray hole 12b, making it possible to store the paint 9 for a long period of time.
[0049] As shown in Fig. 9(a), a female thread 96 is formed on the inner peripheral surface of the long-term storage lid 6, and a male thread 95 is formed on the outer peripheral surface of the spraying part 11b, as shown in Fig. 9(a). Then, as shown in Fig. 9(a), by screwing the female thread 96 of the long-term storage lid 6 into the male thread 95 of the spraying part 11b, the paint 9 below the lid main body part 1b can be reliably sealed by the long-term storage lid 6.
[0050] Furthermore, if the paint container lid 100c has a lid not shown that covers the opening 81, the spray portion 11b can be sealed with the long-term storage lid 6, and the paint container lid 100c can be further sealed with a lid not shown that covers the opening 81 that the paint container lid 100c had, thereby enabling the paint 9 located between the spray portion 11b above the lid main body portion 1b and the lid rising portion 4 in the space 73 to be stored for a long period of time.
[0051] Furthermore, the handle 5 and long-term storage lid 6 can also be applied to the paint container lid 100a described in the first embodiment above, and when the handle 5 is applied to the paint container lid 100a, it is the lid main body portion 1a that moves when the handle 5 is operated.
[0052] In addition, the long-term storage lid 6 may have a long shape extending upward as shown in (b) of Figure 9. In this case, even if a large amount of paint 9 remains between the upper spray portion 11b of the lid main body 1b and the lid rising portion 4 in the space 73, the paint 9 below the lid main body 1b can be securely sealed by pinching the upper part of the long-term storage lid 6 with the fingers and screwing it into the spray portion 11b without soiling the worker's fingers with paint.
[0053] Further, the paint container lid 100a, the paint container lid 100b and the paint container lid 100c described in this specification are made of polyethylene, but the present invention is not limited to this and other materials may be used.
[0054] In addition, the paint container 8 described in this specification has a rim 82 bent outward so that its inner surface 84 is flush, but the paint container may have a rim 82 bent inward. In this case, the lid outer periphery 2a that fits with the rim 82 is formed into an appropriate shape so that it can be fitted with the rim 82, and in the paint container lids 100b, 100c having a lid outer periphery 2b that is pressed against the inner surface 84 of the paint container 8, the paint container lids 100b, 100c can be inserted into the interior 83 of the paint container 8 from the opening 81 in a slightly bent state, and the lid outer periphery 2b can be pressed against the inner surface 84 of the paint container 8 in an appropriate position to attach the paint container lids 100b, 100c to the paint container 8.
[0055] Further, although the paint container 8 described in this specification is a circular bucket-shaped container, it may be of any other shape, such as a square shape.
[0056] Furthermore, although the entire telescopic portion 3 of the paint container lid 100a is formed in a bellows shape, the present invention is not limited to this, and only a portion of the telescopic portion 3 may be bellows-shaped as long as the lid main body portion 1a reaches the bottom 85 of the interior 83 of the paint container 8 when the lid outer peripheral portion 2a is engaged with the edge 82 of the paint container 8.
[0057] Furthermore, the lid raised portion 4 of the paint container lids 100b, 100c was formed in a stepped shape with a single step portion 41, but the present invention is not limited to this and may be formed in a stepped shape with multiple steps.
[0058] The lid outer periphery 2b of the paint container lid 100b, 100c is formed in a C-shape that opens downward because the inner circumference of the interior 83 of the paint container 8 is tapered downward, narrowing toward the bottom, so that when the paint container lid 100b, 100c is pressed downward, the lid outer periphery 2b continues to be pressed against the inner surface 84 of the paint container 8 while responding to the change in the inner circumference of the interior 83 of the paint container 8. The present invention is not limited to this, and the shape of the lid outer periphery 2b may be any shape that continues to be pressed against the inner surface 84 of the paint container 8. In addition, in order to prevent the paint container lid 100b, 100c from rotating in the interior 83 of the paint container 8, it is preferable that the lid outer periphery 2b has a shape that presses against the inner surface 84 of the paint container 8 with a surface. [Explanation of symbols]
[0059] 100a paint container lid 1a Lid main body 11a Spout part 12a Spout hole 13a Outer periphery of the lid body 2a Lid outer periphery 3 Telescopic part 100b paint container lid 1b Lid main body 11b Spout part 12b Blowout hole 13b Outer periphery of the lid body 2b Lid outer periphery 4 Lid stand 100c paint container lid 5. Handle 6 Long-term storage lid 8 Paint container 81 Aperture 82 Relationship 83 Inside 84 Inner surface 85 bottom 9 Paint
Claims
1. A lid for a paint container for a paint container that is open at the top and stores paint therein, The coating material container has a flat lid body portion having an outer periphery smaller than an inner periphery of the coating material container, a lid outer periphery portion that can be fitted to the edge of the opening of the coating material container over its entire periphery, and an expandable portion that is expandable and flexible and extends from the outer periphery of the lid body portion to the lid outer periphery portion, The lid body is provided with a jet portion having an ejection hole that protrudes upward and penetrates the lid body in the vertical direction, A lid for a paint container, characterized in that the lid main body portion can be lowered to the bottom of the inside of the paint container with the lid outer peripheral portion fitted onto the edge.
2. 2. The lid for a paint container according to claim 1, wherein the expandable portion is entirely or partially formed in a bellows shape.
3. 3. The lid for a paint container according to claim 1, further comprising a long handle on the spray portion.
4. 3. The lid for a paint container according to claim 1, further comprising a lid for long-term storage that covers the nozzle hole from above and caps the nozzle hole.
5. A lid for a paint container as described in claim 4, characterized in that an inner surface of the long-term storage lid and an outer surface of the spray portion are provided with female threads and male threads, and the long-term storage lid can be screwed onto the spray portion.
Citation Information
Patent Citations
A pasty adhesive paste in the pumping vessel -
JP1983163500U
Device for firing high voltage discharge lamp
JP1984000898A