Spray cans

Abstract

To provide a spray can capable of spraying liquid in lines of different thicknesses with a single can. [Solution] A spray can 1 comprising a container body 2 for containing liquid contents, a pipe-shaped valve attached to the top of the container body 2 so as to protrude and which ejects the contents from the tip when moved downwards, and a nozzle 4 attached to the valve, wherein the nozzle 4 has a nozzle central portion 41 and a plate-shaped portion 42 connected to the outer periphery of the nozzle central portion 41 and extending in a direction perpendicular to the up-down direction, and is rotatable together with the valve, and the nozzle central portion 41 is formed with a slit-shaped nozzle 44 for spraying the contents upwards, a hole portion into which the tip of the valve fits, and a communication hole connecting the nozzle 44 to the bottom of the hole portion, and the plate-shaped portion 42 is provided with markings 45N, 45W, centered on a position which is an extension of the nozzle 44 in the longitudinal direction and / or on a line perpendicular to the longitudinal direction of the nozzle 44.

Description

[Technical field]

[0001] The present invention relates to a spray can, and more particularly to a spray can suitable for use as a road marking paint. [Background technology]

[0002] Spray cans have traditionally been used as a means of spraying liquid. Spray cans are sold with the liquid to be sprayed and compressed inert gas filled in the container body, and users can simply press the nozzle to spray the liquid toward the target object immediately after purchasing the can, making it easy to use and a well-established means of spraying. Among these, paint spray cans that can be used to spray paint are widely available on the market, as the paint stored in them is not exposed to the outside air and the paint does not harden until it is sprayed.

[0003] When liquid is sprayed from a spray can, the liquid spreads in an approximately circular shape as it is sprayed onto the target surface. Therefore, when trying to spray paint from a paint spray can to draw a thin line, for example, it is necessary to mask the area where you do not want the paint to adhere. In particular, it would be convenient to be able to spray paint easily with a paint spray can when you want to easily draw a line on the surface of a parking lot or the like.

[0004] In order to make a paint spray can for the purpose of drawing lines without masking, it is sufficient to use a nozzle that does not spread the sprayed paint too much. However, if the degree of nozzle spread is fixed, it is only possible to draw lines of a certain thickness, so users must prepare multiple paint spray cans with nozzles that can draw lines of the desired thickness and use them accordingly.

[0005] The above describes an example of a spray can that requires the spraying of liquid in a line shape, using a paint spray can as an example. However, spraying liquid in a line shape can also be required for spray cans for purposes other than paint, such as a mold remover that requires the spraying to follow joints, or an insect repellent that requires the spraying to follow insect paths. [Prior art documents] [Patent documents]

[0006] [Patent Document 1] JP 2020-59554 A Summary of the Invention [Problem to be solved by the invention]

[0007] Therefore, an object of the present invention is to provide a spray can that can spray the liquid content in lines of different thicknesses with just one can. [Means for solving the problem]

[0008] The above object can be achieved by the present inventions [1] to [5] below. [1] A spray can comprising at least a container body for accommodating a liquid content, a pipe-shaped valve attached to an upper portion of the container body so as to protrude therefrom and which ejects the content from a tip when moved downward, and a nozzle attached to the valve, The nozzle has a nozzle center portion including an attachment portion to the valve, and a plate-shaped portion connected to an outer periphery of the nozzle center portion and extending in a direction perpendicular to the up-down direction, and is rotatable together with the valve; The nozzle has a central portion formed with a slit-shaped nozzle for spraying the contents discharged from the tip of the valve upward, a hole into which the tip of the valve fits, and a communication hole for communicating the nozzle with the bottom of the hole, The plate-shaped portion is provided with markings regarding the spray width of the contents sprayed from the nozzle, the markings being centered on a first position which is an extension of the longitudinal direction of the nozzle and / or a second position which is on a line perpendicular to the longitudinal direction of the nozzle and passes through the center of the nozzle. [2] The spray can according to [1], wherein the plate-shaped portion is disk-shaped. [3] The spray can according to [1], wherein the plate-shaped portion is made up of flat plates arranged in a cross shape, and the mark is provided on at least one of the flat plates in the cross shape. [4] The spray can according to [3], wherein the width of the cross-shaped flat plate itself is the mark. [5] The upper portion of the container body has a circular recess concentric with the valve, and the valve protrudes from the center of the bottom of the recess. The nozzle has a cylindrical portion protruding from below the plate-like portion and concentric with the valve, The spray can according to any one of [1] to [4], wherein the cylindrical portion is fitted into the recess so as to be movable up and down. Effect of the Invention

[0009] According to the spray can of the present invention, it is possible to provide a single spray can that is capable of spraying the liquid content in lines of different thicknesses. [Brief description of the drawings]

[0010] [Figure 1] FIG. 1 is a perspective view of a spray can according to an embodiment of an exemplary aspect of the present invention. [Diagram 2] FIG. 1 is a partial cross-sectional view of a spray can according to an embodiment of the present invention. [Diagram 3] FIG. 2 is a plan view of a nozzle of the spray can according to the embodiment. [Figure 4] FIG. 2 is a perspective view of a nozzle of the spray can according to the embodiment, viewed obliquely from above. [Diagram 5]4 is a cross-sectional view of a nozzle of a spray can according to an embodiment, which corresponds to the cross section AA in FIG. 3. [Figure 6] FIG. 11 is an explanatory diagram for explaining the relationship between the direction of movement of the spray can and the orientation of the nozzle, showing the state in which a thin line is being drawn. [Figure 7] FIG. 11 is an explanatory diagram for explaining the relationship between the direction of movement of the spray can and the orientation of the nozzle, showing the state in which a thick line is being drawn. [Figure 8] FIG. 11 is a plan view showing an example of a nozzle having a plate-like portion shaped like a cross. [Figure 9] FIG. 11 is a perspective view seen from diagonally above, showing an example of a nozzle having a plate-shaped portion shaped like a cross. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0011] Hereinafter, a spray can according to an embodiment of the present invention will be described with reference to the drawings. The present embodiment is an example of a spray can of road marking paint for painting lines in parking lots and the like. Fig. 1 is a perspective view of a spray can according to this embodiment, and Fig. 2 is a partial cross-sectional view thereof, in which only the vicinity of the nozzle at the top is depicted as a cross section.

[0012] In the present invention and the present embodiment, the notation of the up-down relationship refers to the up-down relationship in a state in which a spray can is generally held upright with the nozzle facing up during storage or distribution. Therefore, the up-down relationship here is unrelated to the up-down relationship when the spray can is in use, and in particular, the spray can according to the present embodiment is normally used upside down.

[0013] As shown in Figures 1 and 2, the spray can 1 of this embodiment comprises a container body 2 that contains liquid contents, a pipe-shaped valve 3 that is attached to the top of the container body 2 and protrudes therefrom and ejects the contents from its tip when moved downward, and a nozzle 4 attached to the valve 3.

[0014] The container body 2 is a metal can having a cylindrical body 21, a bottom portion 22 that closes the bottom of the body 21, and an upper closing portion 23 that closes the upper portion of the body 21 and has a valve 3 attached to its center. The container body 2 contains a liquid content such as paint and is filled with compressed inert gas.

[0015] The upper blocking portion 23 has a ring-shaped shoulder portion 23a that protrudes upward, and a circular recessed portion 23b that is concentric with the valve 3. The recessed portion 23b is recessed downward from the upper end of the upward protruding shoulder portion 23a, and has a circumferential inner surface. The valve 3 protrudes from the center of the bottom 23b' of the recessed portion 23b.

[0016] Fig. 3 is a plan view of the nozzle 4, Fig. 4 is a perspective view of the nozzle 4 from diagonally above, and Fig. 5 is a cross-sectional view taken along line AA in Fig. 3. As shown in Figs. 3 to 5, the nozzle 4 has a nozzle central portion 41 including an attachment portion to the valve 3, and a plate-like portion 42 that is connected to the outer periphery of the nozzle central portion 41 and extends in a direction perpendicular to the up-down direction. The nozzle 4 is rotatable together with the valve 3.

[0017] Nozzle center portion 41 further has a protrusion 47 that protrudes upward, and four ribs 46 that rise outward from the outer circumferential surface. The four ribs 46 are protrusions for making the spray pattern width (narrow direction) easier to understand, and are provided at a position that is an extension of the longitudinal direction of rectangular injection port 44. Like a first mark rib 45N described later, they function as a "mark" according to the present invention.

[0018] In the nozzle center portion 41, there are formed a slit-shaped injection port 44 for injecting the contents contained in the container body 2 upward, a hole portion 48 into which the tip of the valve 3 fits, and a communication hole 49 that communicates between the injection port 44 and a bottom 48a of the hole portion 48. The injection port 44 is formed at the tip of the protruding portion 47.

[0019] In this embodiment, the plate-like portion 42 is disk-shaped. As shown in Fig. 5, the nozzle 4 has a cylindrical portion 43 that is concentric with the valve 3 and protrudes from below the plate-like portion 42. This cylindrical portion 43 is fitted into the recessed portion 23b at the upper portion of the container body 2 so as to be movable up and down. The cylindrical portion 43 moves up and down while rubbing against the inner circumferential surface of the recessed portion 23b or with a very narrow gap.

[0020] As shown in FIG. 3, the plate-shaped portion 42 has a first position (line L x A pair of low first mark ribs 45N are provided with a center (the upper position) at the center of the nozzle 44. Also, the plate-shaped portion 42 is provided with a line L y A pair of low second mark ribs 45W are provided around the second position, which is the top. The first mark rib 45N and the second mark rib 45W correspond to the marks related to the spray width of the contents sprayed from the spray nozzle 44, that is, to the "mark" of the present invention.

[0021] In this embodiment, the spray can 1 is turned upside down so that the nozzle 44 is facing the road surface to be painted, and the nozzle 4 is pushed downward in the drawing (actually upward since the can is turned upside down), causing the paint contents to be sprayed out in a slightly spreading plate-like shape from the slit-like nozzle 44.

[0022] In the spray can 1 of this embodiment, when applying paint manually, the nozzle 4 is pushed downward by gripping the container body 2 with the thumb, ring finger, and little finger, placing the index finger and middle finger on the top of the nozzle 4, and bending the index finger and middle finger downward to push the nozzle 4 downward, thereby spraying the contents, that is, the paint, from the nozzle 44.

[0023] Moreover, the spray can 1 according to this embodiment can be set upside down on a line-drawing device (not shown) equipped with wheels, and a straight line can be easily formed by running the line-drawing device while pushing the nozzle 4 downward. In this case, a grip lever (not shown) may be provided on the handle of the line-drawing device so that the nozzle 4 is pushed downward by the user gripping the grip lever.

[0024] The grip lever (not shown) is linked to a pressing member (not shown), and when the grip lever is gripped, the pressing member moves to press the nozzle 4 downward. The pressing member is arranged to abut against the upper surface of the nozzle 4 in a pair of lines around the nozzle 44, or in a circular or arc shape surrounding the nozzle 44, while avoiding the nozzle 44. The pressing member may have three or more abutment points around the nozzle 44. By having a plurality of abutment points around the nozzle 44 or a linear abutment point surrounding the nozzle 44, the spray can 1 can be easily set on the line drawing device, while the nozzle 4 can be stably pressed downward during the application operation.

[0025] In the spray can 1 according to this embodiment, as described above, the nozzle 4 is rotatable together with the valve 3. Therefore, when drawing a line on a road surface with the spray can 1 according to this embodiment, the nozzle 4 is rotated to appropriately align the moving direction of the spray can 1 with the orientation of the nozzle 4 before carrying out the application work.

[0026] 6 and 7 are explanatory diagrams for explaining the relationship between the moving direction R of the spray can 1 and the orientation of the nozzle 4, with Fig. 6 showing a state in which a thin line LN is drawn, and Fig. 7 showing a state in which a thick line LW is drawn. As shown in Figs. 6 and 7, the nozzle 4 is rotatable in the direction of the double arrow T together with the valve 3 (not shown) around the injection port 44.

[0027] Note that Figures 6 and 7 are merely explanatory diagrams for illustrating the relationship between the movement direction R of the spray can 1 and the orientation of the nozzle 4; during actual coating work, the nozzle 44 faces toward the road surface (the side of the surface on which the lines LN and LW are formed, i.e., the back side of the paper on which the drawings are drawn) and cannot be seen.

[0028] When attempting to form a thin line LN, the direction of the nozzle 4 is adjusted so that the first mark rib 45N, which has a pair of narrow rib spacing, coincides with the moving direction R of the spray can 1, as shown in Fig. 6, and then the application work can be carried out. Since the nozzle 4 has an injection port 44 formed in a slit shape, the paint content is injected while spreading to some extent in the longitudinal direction of the injection port 44 (the direction of the arrow x and the opposite direction), but hardly spreading at all in the direction perpendicular to the longitudinal direction of the injection port 44 (the direction of the arrow y and the opposite direction).

[0029] Therefore, as shown in Fig. 6, by spraying paint while adjusting the orientation of nozzle 4 so that first mark rib 45N, which has a pair of narrow rib spacing, coincides with the moving direction R of spray can 1, the spray width of the paint sprayed from nozzle 44 becomes narrow, and a narrow line LN can be formed. On the other hand, as shown in Fig. 7, by spraying paint while adjusting the orientation of nozzle 4 so that second mark rib 45W, which has a pair of wide rib spacing, coincides with the moving direction R of spray can 1, the spray width of the paint sprayed from nozzle 44 becomes wide, and a wide line LW can be formed.

[0030] When applying by hand, application can be performed while moving the spray can 1 so that the first mark rib 45N or the second mark rib 45W coincides with the moving direction R. When applying with a line drawing device, the nozzle 4 of the spray can 1 set in the line drawing device can be rotated so that the first mark rib 45N or the second mark rib 45W coincides with the running direction of the line drawing device.

[0031] In this way, with the spray can 1 of this embodiment, the nozzle 4 has a slit-like outlet 44, so that it is possible to spray two different thicknesses onto the workpiece simply by selecting the orientation of the outlet 44 and the movement direction of the spray can 1. Therefore, with the spray can 1 of this embodiment, two types of lines, wide and narrow, LW and LN, can be easily formed with a single spray can 1.

[0032] Furthermore, according to the spray can 1 of this embodiment, since the plate-shaped portion 42 of the rotating nozzle 4 is provided with marks (the first mark rib 45N and the second mark rib 45W), it is possible to easily select two different spray widths for the object to be coated. Therefore, according to the spray can 1 of this embodiment, it is possible to easily select and form two different types of lines, wide and narrow, LW and LN, with a single spray can 1.

[0033] It is also possible to form paint lines of a continuous range of thickness between thick and narrow lines by positioning the marks (first mark rib 45N and second mark rib 45W) somewhere along the direction of movement of the spray can 1, rather than making the marks coincide with the direction of movement of the spray can 1. When applying paint by setting the spray can 1 in a line drawing device, a mechanism may be provided to lock the spray of paint at an intermediate stage where the marks do not coincide with the direction of movement of the spray can 1, so as to prevent the formation of paint lines of incomplete thickness. Alternatively, a mechanism may be provided to hold the rotation of the nozzle 4 when the position of any of the marks coincides with the direction of movement of the spray can 1.

[0034] Furthermore, in the spray can 1 of this embodiment, the cylindrical portion 43 protruding from below the plate-shaped portion 42 of the nozzle 4 is fitted into the recessed portion 23b at the upper part of the container body 2 so as to be able to move up and down, so that the nozzle 4 can be pressed downward smoothly and the nozzle 4 is less likely to come off the valve 3.

[0035] The above-described embodiments merely show examples of typical forms of the present invention, and the present invention is not limited to these embodiments. For example, in the above-described embodiment, an example is shown in which a low first mark rib 45N and a second mark rib 45W are provided as marks, but the marks are not limited to this configuration. For example, a pair of lines may be drawn on the surface of the plate-shaped portion instead of the ribs, or the ribs or lines themselves may be in the form of one thick line and one thin line.

[0036] The markings do not have to be in the form of a rib or a line that directly indicates the thickness, but may be indicated by letters such as "thick" or "thin" (see the modified nozzle 104 shown in Figs. 8 and 9). Furthermore, the markings do not have to be provided on the upper surface of the plate-like portion 42, and for example, the end of the plate-like portion 42 may be protruded at an obtuse or acute angle and used as the marking.

[0037] In the above embodiment, the marks are provided in four directions on the disk-shaped plate-like portion 42, but it is sufficient that the marks are provided in at least one of these directions. Explaining using the symbols in the above embodiment (particularly see FIG. 3), in the present invention, the plate-like portion 42 is provided with a position (line L) that is an extension of the longitudinal direction (the direction of the arrow x and the opposite direction) of the injection port 44. x A line L passing through the center of the injection port 44 in a direction perpendicular to the longitudinal direction of the injection port 44 (the direction of the arrow y and the opposite direction thereto) y Of course, it is sufficient to provide a mark at the center of at least one of the positions of the nozzle 44 in the longitudinal direction (the direction of the arrow x and the opposite direction). x A line L passing through the center of the injection port 44 in a direction perpendicular to the longitudinal direction of the injection port 44 (the direction of the arrow y and the opposite direction thereto) y It is preferable that both the top and bottom positions are marked.

[0038] Furthermore, in the above embodiment, the plate-shaped portion 42 is disk-shaped, but the shape of the plate-shaped portion 42 is not limited to this, and may be, for example, a polygonal shape such as a rectangular shape or a triangular shape, a star shape, a cross shape, or any other various fixed or irregular shapes.

[0039] When the plate-like portion is to be shaped like a cross, four rectangular flat plates are assembled in a cross shape. Here, "assembling in a cross shape" means that rectangular flat plate-like parts are arranged on all four sides, and these parts may be integrally molded or assembled separately, and either is included in the concept of "assembling in a cross shape."

[0040] A plan view showing an example (modified example) of a nozzle in which the plate-like portion is shaped like a cross is shown in Fig. 8, and a perspective view from diagonally above is shown in Fig. 9. In the nozzle 104 of the modified example shown in Figs. 8 and 9, the members having the same configuration as the nozzle 4 used in the spray can 1 of the above embodiment are given reference numbers in the hundreds with "1" added to the beginning of the reference numbers for the nozzle 4.

[0041] 8 and 9, the members denoted by the reference numerals indicate members having the same configuration as the members of the nozzle 4 in the above embodiment denoted by reference numerals in the 40s after removing the hundreds digits of the same reference numerals, unless otherwise specified. Also, the cross-sectional shape of the nozzle 104 is roughly the same as that of the nozzle 4 in the above embodiment, and see FIG. 5 (however, the nozzle 104 does not have a member equivalent to the protruding portion 47).

[0042] 8 and 9, nozzle 104 of the modified example has nozzle central portion 141 including an attachment portion to a valve (not shown) (see valve 3 in FIG. 2), and plate-like portion 142 connected to the outer periphery of nozzle central portion 141 and extending in a direction perpendicular to the up-down direction. Nozzle 104 is rotatable together with the valve (not shown). Note that nozzle 104, including nozzle central portion 141, plate-like portion 142, and cylindrical portion 143, are entirely formed by integral molding.

[0043] In this embodiment, the plate-like portion 142 has a cross shape, and four rectangular flat plates 142a, 142b, 142c, and 142d are assembled in the cross shape.

[0044] As shown in FIG. 8, on the upper surfaces of the flat plates 142a and 142b of the plate-shaped portion 142, a first position (line L x A first mark protrusion 145N protruding in the shape of the character "thin" is provided at the center (the upper position).

[0045] Further, on the upper surfaces of the flat plates 142c and 142d of the plate-shaped portion 142, a line L passing through the center of the injection port 144 in a direction perpendicular to the longitudinal direction of the injection port 144 (the direction of the arrow y and the opposite direction thereto) is y A second mark protrusion 145W protruding in the shape of the character "bold" is provided at the center of the top position.

[0046] These first mark convex portion 145N and second mark convex portion 145W correspond to the marks related to the spray width of the contents sprayed from the spray nozzle 144, that is, the "mark" as referred to in the present invention. The first mark convex portion 145N in the shape of the character "thin" is a mark for a thin spray width, and the second mark convex portion 145W in the shape of the character "thick" is a mark for a thick spray width.

[0047] Therefore, when the modified nozzle 104 is used instead of the nozzle 4 in the above embodiment, as in the above embodiment, the direction of the nozzle 104 is adjusted so that the extension direction of the flat plates 142a, 142b on which the first mark protrusion 145N in the shape of the character "thin" is provided coincides with the movement direction of the spray can, and the paint is sprayed while the direction of the nozzle 104 is adjusted so that the spray width of the paint sprayed from the nozzle 144 becomes narrow, thereby making it possible to form a narrow line.

[0048] In addition, by spraying paint while adjusting the orientation of nozzle 104 so that the extension direction of flat plates 142c, 142d, on which second mark protrusion 145W in the shape of the character "thick" is provided, coincides with the movement direction of the spray can, the spray width of the paint sprayed from spray outlet 144 becomes wider, and a thick line can be formed.

[0049] When the shape of the plate-like portion is cross-shaped, the rectangular flat portion (flat portions 142a, 142b, 142c, 142d) may be directly connected to the outer periphery of the nozzle center portion 141 as in the examples shown in Figures 8 and 9, or may be first connected to a ring-shaped portion and the inner periphery of the ring-shaped portion may be connected to the outer periphery of the nozzle center portion.

[0050] In the case where the plate-shaped portion is cross-shaped, it is sufficient that at least one of the flat plates of the cross is provided with the mark as referred to in the present invention. Of course, it is preferable that two of the flat plates of the cross, which extend at a right angle, are provided with the mark, and it is more preferable that all of the flat plates are provided with the mark.

[0051] When the plate-like portion is cross-shaped, the width of the cross-shaped plate itself may be changed to two different widths, wide and narrow, and this may be used as the mark referred to in the present invention.

[0052] In addition, those skilled in the art may implement various modifications in accordance with conventionally known knowledge without departing from the gist of the present invention. As long as such modifications still provide the spray can of the present invention, they are of course included in the scope of the present invention. [Explanation of symbols]

[0053] 1: spray can, 2: Container body, 3: Valve, 4,104: Nozzle, 21: Torso, 22: Bottom, 23: Upper occlusion part, 23a: Shoulder, 23b: Depression, 23b′: bottom, 41,141: nozzle center, 42, 142: plate-shaped part, 43,143: Cylindrical part, 44,144: Injection port, 45N: First marker rib (marker), 45W: Second marker rib (marker), 46,146: Rib, 47:Protrusion, 48: hole part, 48a: bottom, 49: Communication hole, 142a, 142b, 142c, 142d: flat plate, 145N: first mark protrusion (mark), 145W: Second mark protrusion (mark)

Claims

1. A spray can comprising at least a container body for accommodating a liquid content, a pipe-shaped valve attached to an upper portion of the container body so as to protrude therefrom and which ejects the content from a tip when moved downward, and a nozzle attached to the valve, The nozzle has a nozzle center portion including an attachment portion to the valve, and a plate-shaped portion connected to an outer periphery of the nozzle center portion and extending in a direction perpendicular to the up-down direction, and is rotatable together with the valve; The nozzle has a central portion formed with a slit-shaped nozzle for spraying the contents discharged from the tip of the valve upward, a hole into which the tip of the valve fits, and a communication hole for communicating the nozzle with the bottom of the hole, The plate-shaped portion is provided with markings regarding the spray width of the contents sprayed from the nozzle, the markings being centered on a first position which is an extension of the longitudinal direction of the nozzle and / or a second position which is on a line perpendicular to the longitudinal direction of the nozzle and passes through the center of the nozzle.

2. 2. The spray can according to claim 1, wherein the plate-shaped portion is disk-shaped.

3. 2. The spray can according to claim 1, wherein the plate-shaped portion is made up of flat plates arranged in a cross shape, and the mark is provided on at least one of the flat plates arranged in the cross shape.

4. 4. The spray can according to claim 3, wherein the mark is a width of the cross-shaped flat plate itself.

5. The upper portion of the container body has a circular recess concentric with the valve, and the valve protrudes from the center of the bottom of the recess. The nozzle has a cylindrical portion protruding from below the plate-like portion and concentric with the valve, 5. The spray can according to claim 1, wherein the cylindrical portion is fitted into the recess so as to be movable up and down.

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