JP3175738U - Liquid level coating float - Google Patents

Abstract

An object of the present invention is to provide a float for coating a liquid surface, which makes it difficult for the floats to overlap each other and enables ultrasonic welding.
A float 1 is formed by joining first and second members 2 and 3 by ultrasonic welding, and each of the first and second members 2 and 3 has a substantially hexagonal columnar base portion 21. , 31 and projecting from one end face 21a of the base portions 21, 31 and mountain-shaped raised portions 22, 32 having apexes T on the axis of the base portions 21, 31 and the raised portions 22, 32, The end face 21a is provided so as to leave a flat part F surrounding the raised parts 22 and 32, and the other end faces having no raised parts among the end faces of the base parts 21 and 31 are joined. .
[Selection] Figure 2

Description

  The present invention relates to a liquid surface coating float capable of coating a liquid surface without a gap.

  As a conventional liquid surface coating float, a spherical float formed in a hollow shape is known. Even when a large number of spherical floats are thrown into the liquid, they are floated and arranged on the liquid surface without overlapping, so that the floats can be arranged efficiently. However, since the spherical diameter parts are aligned on the liquid surface, the liquid surface is arranged in a circle, and the liquid surface cannot be completely blocked, and a small sphere is mixed in the gap formed between the circles. It still needs to be done, but it still cannot completely block the surface.

  Further, as a float, a plate-like structure having a certain thickness in which a planar shape is a regular hexagonal shape and a low conical surface or a convex curved surface is formed on the upper and lower surfaces is also known (see, for example, Patent Document 1). . In this way, if the planar shape is a regular hexagonal shape, it can be arranged without generating a gap when arranged in a liquid surface. However, in order to float in a liquid such as a small container for indoor use or laboratory use without generating a gap, it is necessary to reduce the diagonal dimension to about 30 mm or less. When such small floats are put together into the liquid, even if conical surfaces or convex curved surfaces are formed on the upper and lower surfaces, the floats stick together and overlap, and as a result, the liquid surface cannot be completely blocked. Therefore, in order to prevent a plurality of floats from overlapping or sticking to each other, it is conceivable not to provide a flat portion parallel to the liquid surface on the float.

  On the other hand, since such a float floats on the liquid surface, the float is formed so as to be heavier so as to be stable on the liquid surface. Therefore, it is manufactured so that one float is formed by joining two separate members, one made heavy and the other made lighter. In the case of joining these two separate members, an ultrasonic welding technique has been used in recent years. This ultrasonic welding technique has various merits, such as being able to respond quickly to a large amount of product welding, reducing power consumption, and not producing harmful substances generated during resin welding.

JP 2000-355395 A

  However, when the ultrasonic welding site is not flat, there is a possibility that the welding state varies and a defective product may be produced, and there is a problem that processing by ultrasonic welding is difficult. On the other hand, if the upper surface and the lower surface in a state where the float is floated are made flat, ultrasonic welding itself is possible, but the problem arises that the floats overlap each other.

  SUMMARY OF THE INVENTION In view of the above circumstances, the present invention has an object to provide a liquid surface coating float that does not easily overlap with each other and can be ultrasonically welded.

  The liquid surface coating float of the present invention is a liquid surface coating float for floating on the liquid surface to cover the liquid surface, and the float joins the first and second members by ultrasonic welding. Each of the first and second members is formed with a substantially hexagonal columnar base portion, and protrudes from one end surface of the substantially hexagonal columnar base portion, and has a top portion on the axis of the substantially hexagonal columnar base portion. A ridge-shaped ridge, and the ridge is provided so as to leave a flat portion surrounding the bulge at the one end surface, and the ridge is out of the end faces of the substantially hexagonal base portion. The other end faces that do not have are joined together.

  Further, it is preferable that one of the first and second members is formed to be heavier than the other.

  The specific gravity of the entire liquid surface coating float is preferably 0.4 to 0.6.

  Moreover, it is preferable that at least one inclined portion extending from each side of the one end surface to the raised portion is formed.

  Moreover, it is preferable that the said protruding part is substantially hemispherical.

  Moreover, it is preferable that the boundary between the raised portion and the one end surface is a substantially hexagonal shape, and the raised portion is formed to be curved toward the top of the raised portion.

  Moreover, it is preferable that the said protruding part is a substantially hexagonal pyramid shape.

  Further, it is preferable that the raised portion has a rising portion that rises perpendicularly to the one end surface from a boundary between the raised portion and the one end surface.

  ADVANTAGE OF THE INVENTION According to this invention, the float for liquid level coating | cover which can prevent superposition | floating and can also ultrasonically weld can be provided.

It is a figure which shows the use condition which the float of this invention floated on the liquid level. It is a perspective view of the float of this invention. It is a front view of the float of this invention. It is a top view of the float of this invention. It is a perspective view which shows the other aspect of the float of this invention. It is a perspective view which shows the other aspect of the float of this invention. It is a perspective view which shows the other aspect of the float of this invention. It is a perspective view which shows the state which provided the inclination member in the float of this invention. It is a perspective view which shows the state which provided the inclination member in the float of this invention. It is a perspective view which shows the state which provided the inclination member in the float of this invention. It is a perspective view which shows the state which provided the inclination member of the other aspect in the float of this invention. It is a perspective view which shows the state which provided the inclination member of the other aspect in the float of this invention. It is a perspective view which shows the state which provided the inclination member of the other aspect in the float of this invention.

  Hereinafter, a liquid surface coating float (hereinafter simply referred to as a float) of the present invention will be described in detail with reference to the accompanying drawings.

  As shown in FIG. 1, the float 1 of the present invention is for floating on the liquid surface S to cover the liquid surface S, and a plurality of floats 1 are placed on the liquid surface S to cover the liquid surface S. , Prevents the gas from being dissolved in the liquid and the liquid from evaporating, preventing the liquid from being kept warm and the odor from being emitted.

  As shown in FIG. 2, the float 1 includes a first member 2 and a second member 3. The first member 2 and the second member 3 are joined by known ultrasonic welding.

  Each material of the first member 2 and the second member 3 is not particularly limited as long as it is a thermoplastic resin capable of ultrasonic welding. For example, polypropylene, polyethylene, polyvinyl chloride (PVC), ABS resin, An acrylic resin or the like is preferably employed.

  In the embodiment shown in FIGS. 2 to 4, the first member 2 and the second member 3 have substantially the same shape. However, if the first member 2 and the second member 3 can float on the liquid level, the first member 2 2 and the second member 3 may have different shapes.

  As shown in FIGS. 2 to 4, the first member 2 includes a substantially hexagonal columnar base portion 21 and a mountain-shaped raised portion 22. The raised portion 22 protrudes from one end surface 21 a of the base portion 21 having a substantially hexagonal column shape. The raised portion 22 is formed symmetrically with respect to the axis X of the substantially hexagonal columnar base portion 21, and has a top portion T on the axis of the substantially hexagonal columnar base portion 21. In the embodiment shown in FIGS. 2 to 4, the mountain-like ridge 22 is shown as a substantially hemispherical ridge.

  As shown in FIGS. 2 and 3, the second member 3 includes a substantially hexagonal column-shaped base portion 31 and a mountain-shaped raised portion 32, as in the first member 2. The raised portion 32 protrudes from one end surface 31 a of the substantially hexagonal columnar base portion 31. The raised portion 32 is formed symmetrically with respect to the axis X of the substantially hexagonal columnar base portion 31, and has a top portion T on the axis of the substantially hexagonal columnar base portion 31.

  Of the end faces of the substantially hexagonal base parts 21 and 31, end faces that do not have the raised parts 22 and 32 are joined to the first member 2 and the second member 3. When the first member 2 and the second member 3 are joined, a substantially hexagonal column-shaped portion and one float 1 having raised portions 22 and 32 on both end faces of the substantially hexagonal columnar portion are formed. .

  One of the first member 2 and the second member 3 is preferably formed so as to be heavier than the other. By making one of the first member 2 and the second member 3 heavy, when the float 1 enters the liquid surface in a halfway posture, the heavier member enters the liquid surface and the correct posture That is, the axis X of the float 1 is held in a state perpendicular to the liquid level. The float 1 is a combination of the first member and the second member, but it floats regardless of which of the first member 2 and the second member 3 is above the liquid level. The state is the same (as shown in FIG. 1), and the other member surfaces are at the top (for example, the end surfaces 21a and 31a of the substantially hexagonal base portions 21 and 31 are perpendicular to the liquid surface). State) always rotate so that the heavy part comes to the lower part and the light part comes to the upper part, and the end faces 21a, 31a of the substantially hexagonal base parts 21, 31 become parallel to the liquid surface. All float in the same state, and a plurality of floats 1 are attracted to each other.

  Moreover, it is preferable that the specific gravity of the whole float 1 is 0.4-0.6, and by setting it as this specific gravity, in the state which float 1 floated to the liquid level, side surface 21b of base parts 21 and 31, The liquid level comes to 31b. Note that the specific gravity of the entire float 1 is preferably 0.4 to 0.6, and more preferably 0.5, but the liquid level comes to the side surfaces 21b and 31b of the base portions 21 and 31. The specific gravity is not particularly limited as long as it is possible.

  As shown in FIGS. 2 to 4, the raised portions 22 and 32 leave flat portions F surrounding the raised portions 22 and 32 on one end surfaces 21 a and 31 a of the first member 2 and the second member 3, respectively. It is provided as follows. The flat portion F is a portion on the end surfaces 21a and 31a formed between the boundary B between the raised portions 22 and 32 and the end surfaces 21a and 31a and each side E of the end surfaces 21a and 31a. The width W1 of the flat portion F (the distance between each side E of the end faces 21a and 31a and the boundary B. See FIG. 4) is not particularly limited as long as there is a space where ultrasonic welding is possible. It can be appropriately changed according to the situation. In addition, W1 in the float 1 normally used is about 2-3 mm normally.

  As described above, the float 1 has the raised portions 22 and 32 on both sides of the float 1, that is, the vertical direction when floating on the liquid surface, and the flat portion F is formed on the outer periphery of the raised portions 22 and 32. Therefore, when the float 1 floats on the liquid surface due to the raised portions 22 and 32, even if another float 1 is introduced from above the float 1 already in the liquid surface due to the raised portions 22 and 32. The floats 22 and 32 can prevent the floats 1 from overlapping each other.

  Moreover, since the flat part F is provided in the outer periphery of the protruding parts 22 and 32, separate 1st member 2 and 2nd member 3 are provided in the side in which the protruding parts 22 and 32 are not provided. The end faces can be welded without variation by ultrasonic welding. Therefore, it is possible to provide a float 1 that can be easily and uniformly ultrasonically welded and can effectively prevent the floats 1 from overlapping each other when put on the liquid surface. In addition, since the flat portion F capable of high-accuracy ultrasonic welding is provided as described above, the float 1 can be easily obtained simply by ultrasonic welding the first member 2 and the second member 3 having different weights. Can be manufactured.

  The float 1 of the embodiment shown in FIGS. 2 to 4 shows the ridges 22 and 32 having a substantially hemispherical shape, but the shapes of the ridges 22 and 32 are the shapes shown in FIGS. It is not limited. That is, as shown in FIG. 5, the boundary B between the raised portions 22 and 32 and one of the end faces 21 a and 31 a is substantially hexagonal, and the raised portions 22 and 32 are curved toward the apex T of the raised portions 22 and 32. May be formed. Moreover, the protruding parts 22 and 32 different from the modes shown in FIGS. 1 and 5 may form a paraboloid.

  Further, as shown in FIG. 6, the raised portions 22 and 32 may be substantially hexagonal pyramid, and as shown in FIG. 7, the raised portions 22 and 32 are formed by the raised portions 22 and 32 and the end face 21a, You may have the rising part 22a which stands | starts up perpendicularly with respect to the end surfaces 21a and 31a from the boundary B with 31a. As described above, the shape of the raised portions 22 and 32 of the float 1 can be appropriately changed as long as it is formed in a mountain shape that can prevent the floats 1 from being overlapped with each other. included.

  Also, as shown in FIGS. 8 to 10, at least one inclined member 23, 33 (in FIG. 9 and FIG. 10, the inclined member) extends from each side E of one end surface 21 a, 31 a to the raised portions 22, 32. 33 may not be shown). The inclined member 23 extends from the outer peripheral edges of the end faces 21a and 31a to the inclined portions of the raised portions 22 and 32, and can further prevent the float 1 from overlapping. That is, when another float 1 is thrown from above the float 1 floating on the liquid level, the possibility is low, but the flat portion of the other float 1 thrown on the flat portion F gets stuck. There is a case. In such a case, since the inclined member 23 is provided, another float 1 introduced along the inclined portion of the inclined member 23 slides down to the liquid level, thereby further preventing the float 1 from overlapping. be able to. Further, as shown in FIGS. 8 to 10, the inclined member 23 is formed in a plate shape, or formed in a strip shape having a width that leaves the flat portion F sufficiently, thereby enhancing the effect of preventing the float 1 from overlapping. In addition, it is possible to provide the float 1 capable of performing ultrasonic welding with high accuracy.

  8 to 10, the inclined members 23 extending from the sides E of the end faces 21 a and 31 a to the raised portions 22 and 32 are provided. However, as shown in FIGS. 11 to 13, each of the end faces 21 a and 31 a is provided. There may be provided at least one inclined member 23, 33 (the inclined member 33 is not shown in FIGS. 12 and 13) extending from the apex P over the raised portions 22, 32. The inclined member 23 shown in FIGS. 11 to 13 can also prevent the floats 1 from overlapping, similarly to the inclined member 23 shown in FIGS. Needless to say, the inclined member 23 shown in FIGS. 8 to 10 and the inclined member 23 shown in FIGS.

DESCRIPTION OF SYMBOLS 1 Float 2 1st member 21, 31 Base part 21a, 31a End surface 21b, 31b Side surface 22, 32 Raised part 22a Standing part 23, 33 Inclined member 3 2nd member B Boundary E Side F Flat part P Vertex S Liquid surface T top X axis

Claims (8)

A float for covering the liquid surface to float on the liquid surface and cover the liquid surface,
The float is formed by joining the first and second members by ultrasonic welding,
Each of the first and second members is
A substantially hexagonal column base,
Projecting from one end surface of the substantially hexagonal columnar base portion, and having a mountain-shaped raised portion having a top on the axis of the substantially hexagonal columnar base portion,
The raised portion is provided so as to leave a flat portion surrounding the raised portion on the one end surface;
The float for liquid level coating | coated in which the other end surfaces which do not have the said protruding part among the end surfaces of the said substantially hexagonal base part were joined. The liquid level coating float according to claim 1, wherein one of the first and second members is formed to be heavier than the other. The float for coating a liquid surface according to claim 1 or 2, wherein the specific gravity of the entire float for coating a liquid surface is 0.4 to 0.6. The float for liquid level coating | cover of any one of Claims 1-3 in which the at least 1 inclination part extended over the said protruding part from each edge | side or vertex of said one end surface was formed. The float for liquid level coating according to any one of claims 1 to 4, wherein the raised portion is substantially hemispherical. The liquid according to any one of claims 1 to 4, wherein a boundary between the raised portion and the one end surface is substantially hexagonal, and the raised portion is formed to bend toward the top of the raised portion. Float for surface coating. The float for liquid level coating according to any one of claims 1 to 4, wherein the raised portion has a substantially hexagonal pyramid shape. The liquid surface coating float according to any one of claims 1 to 7, wherein the raised portion has a rising portion that rises perpendicularly to the one end surface from a boundary between the raised portion and the one end surface. .

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