JP2015205714A - Measuring cap and container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cap for measuring liquid material capable of easily visualizing a boundary between a measuring surface and a liquid level and capable of almost exactly and easily measuring a prescribed liquid volume, and to provide a container provided with the cap.SOLUTION: A cap 1 which is externally fitted and fastened in an attachable and detachable manner at a mouth part of a container main body for filling liquid material, is removed from the container main body, is inverted, causes the liquid material to be poured thereinto and, thereby, permits the measuring of the liquid material includes: a top wall 15; a lateral wall 16 which is disposed in an inner circumferential surface 32 so as to be extended downward from the peripheral part of the top wall 15 and is provided with a fitting part 34 for fastening the cap to the mouth part of the container main body; and a measuring protruded part 17 having a measuring surface which is disposed so as to be protruded downward from a lower surface 31 of the top wall 15 separately from the inner circumferential surface 32 of the lateral wall 16 and at least partially comprises a concave surface as a measuring surface capable of seeing the boundary with the liquid level of the liquid material poured to the cap 1 from the opening part of the cap 1, on a lateral surface 36. A container provided with the cap 1 is also provided.

Description

  The present invention relates to a measuring cap and a container, and more particularly to a cap that can be detachably fitted and fixed to a mouth portion of a container main body filled with a liquid material and capable of measuring a liquid material and a container including the cap.

  In general, the mouth that becomes the spout of a container body filled with liquid substances such as mouthwash, liquid quasi-drugs, clothing detergents, softeners, etc., has a scale on the inner wall surface that is a measure for measuring liquid substances. A cap for measuring a predetermined amount of liquid in an inverted state is fitted and fixed.

  Caps made of liquid materials that are not easily deteriorated by light, such as laundry detergents and softeners, are mainly made of a transparent material, and the coincidence between the scale and the liquid level can be visually confirmed from the lateral direction of the cap. Liquid quasi-drugs use caps made of non-transparent materials in many cases from the viewpoint of preventing deterioration due to light such as sunlight and fluorescent lamps. Therefore, it is difficult to visually recognize the coincidence between the scale and the liquid level. In particular, when a colorless and transparent liquid material is measured with a cap made of a non-transparent material, it is difficult to visually recognize the position of the liquid surface. In this case, for example, the visibility is improved to some extent by making the cap white and making the liquid material opaque or coloring it in a dark color system, but the level is not sufficiently satisfactory. In addition, since the opaqueness or coloring of the liquid material may not be desirable, further improvement in the visibility of the liquid level in the measuring cap is desired.

  Patent Document 1 is composed of a top wall, a side wall extending downward from the peripheral edge of the top wall, a plurality of columnar protrusions protruding away from the bottom surface of the top wall, and a step provided on the inner peripheral surface of the side wall. The lower surface or step surface of the columnar convex portion is used as a liquid measurement surface, and a plurality of different liquids can be formed by configuring the columnar convex portion so that the cross-sectional view shape and the height from the top wall of the columnar convex portion and step are different. Disclosed is a cap that can be weighed. However, even if the height from the top wall of the columnar convex portion or the step is changed, the difference is slight and the perspective is poor, and therefore a measurement error is likely to occur. In addition, there is little change in the liquid level when pouring the liquid material around the columnar convex part, and it is difficult to visually recognize the coincidence between the lower surface of the columnar convex part and the liquid surface, so the liquid material is poured beyond the lower surface of the columnar convex part. In many cases.

  Patent Document 2 includes a top wall, a side wall extending downward from the peripheral edge of the top wall, a step provided in an annular shape on the inner peripheral surface of the side wall, and a plurality of recesses formed at predetermined intervals in the circumferential direction. The cap which uses this level | step difference as a scale for liquid substance measurement is disclosed. Patent Document 2 describes that measurement is easy because the liquid level is changed by the recess provided in the step. However, the caps for liquid filling containers currently on the market are relatively small, about 3 to 4 cm in length and width, and the size of the recesses that can be formed in the caps is also small, so there is no significant change in the liquid level due to the recesses. The liquid level visibility cannot be improved sufficiently.

  Patent Document 3 discloses a cap that includes a top wall and a side wall extending downward from the peripheral portion thereof, and has an annular rough surface provided on the inner peripheral surface of the side wall as a scale for measuring a liquid substance. However, since the change in the liquid level when the liquid is poured while the cap is inverted is difficult, it is difficult to instantaneously determine that the liquid level has reached the periphery of the annular rough surface. In particular, when the cap is made of an opaque material, the visibility of the annular rough surface is lowered and the change in the liquid level during pouring is poor. As in Patent Document 2 and Patent Document 3, providing a measurement step or rough surface on the inner peripheral surface of the side wall is not effective for improving the visibility of the liquid level.

JP 2013-28382 A JP2013-124107A JP 2003-212256 A

  An object of the present invention is to provide a liquid measuring cap and a container equipped with the cap which can easily visually recognize the boundary between the measuring surface and the liquid surface and can measure a predetermined amount of liquid almost accurately and easily. is there.

  As a result of intensive studies to solve the above problems, the inventors of the present invention have a cap that includes a top wall and a side wall portion extending downward from the peripheral edge portion thereof, and projects downward from the lower surface or side surface of the top wall and is within the side wall. It has been found that a measuring cap that meets the purpose can be obtained by forming a measuring convex portion having a predetermined shape as a measuring surface at a distance from the peripheral surface, and the present invention has been completed.

  That is, the present invention provides the following measuring caps (1) to (10) and the following containers (11) to (12).

  (1) A cap that is detachably fitted and fixed to the mouth of a container body for filling a liquid material, and can be measured by pouring the liquid material in an inverted state by removing it from the container body, A wall, a side wall provided to extend downward from the peripheral edge of the top wall, and provided with a fitting portion on the inner peripheral surface for fixing to the mouth of the container body, and spaced apart from the inner peripheral surface of the side wall. It is provided so that it protrudes downward from the lower surface of the wall, and the boundary with the liquid surface of the liquid poured into the cap is a measuring surface that can be seen from the opening of the cap. A measuring cap comprising: a measuring convex portion.

  According to the measuring cap of (1) above, by providing a concave surface as a measuring surface for the liquid material on at least a part of the side surface of the measuring convex portion protruding downward from the lower surface of the top wall, At the beginning of pouring, the change in the liquid level and the rising speed of the liquid level in the direction of the cap opening are large, but as the liquid is poured, the change in the liquid level decreases and the rising speed of the liquid level also slows down. It will be easier to detect that is approaching. In addition, by making the side surface of the convex portion for measurement concave, even if liquid material is poured at a constant rate, the rising speed of the liquid level changes relatively greatly, and the liquid surface and concave surface at the end of measurement Since the liquid thickness near the boundary becomes larger than that at the start of measurement, the apparent movement of the boundary and the lightness of the liquid surface near the boundary change, so the boundary between the concave surface and the liquid surface in the region near the end of measurement in particular. It becomes easy to visually recognize. In addition, by providing the measuring convex portion protruding from the lower surface of the top wall, the liquid level can be clearly seen no matter where the opening of the cap is viewed.

(2) The measuring cap according to (1), wherein the cross-sectional area of the measuring convex portion decreases continuously or stepwise in the protruding direction.
According to the measuring cap of (2) above, the measuring convex portion becomes smaller continuously or stepwise in the projecting direction, so that the change in the rising speed of the liquid level can be detected more reliably, A predetermined amount of liquid can be measured more accurately and easily.

(3) The measuring cap according to (2), wherein the shape of the measuring convex portion is a cone shape or a frustum shape.
As the shape of the measuring convex portion whose cross-sectional area decreases continuously or stepwise in the protruding direction as in (2) above, it is preferable that the shape is a cone shape or a frustum shape.

(4) The measuring cap according to (3), wherein the measuring convex portion has a frustum shape and has a protruding portion protruding downward from the lower surface thereof.
According to the metering cap of (4) above, when the liquid level reaches the lower surface of the frustum-shaped portion, it is notified that the metering is almost finished, so that the predetermined liquid amount can be metered more accurately.

  (5) A cap that is detachably fitted and fixed to the mouth of the container body for filling the liquid material, and can be measured by pouring the liquid material in an inverted state by removing it from the container body, A wall, a side wall provided to extend downward from the peripheral edge of the top wall, and provided with a fitting portion on the inner peripheral surface for fixing to the mouth of the container body, and spaced apart from the inner peripheral surface of the side wall. It is provided so as to protrude downward from the lower surface of the wall, and the boundary with the liquid surface of the liquid poured into the cap is a measuring surface that can be seen from the opening of the cap. A measuring cap having a measuring surface on the lower surface.

  According to the weighing cap of (5) above, the slope of the predetermined spiral surface is provided as the weighing surface on the lower surface of the weighing convex portion, so that the inclination of the weighing surface is made smoother and the area is further increased. can do. As a result, the visibility of the boundary between the measurement surface and the liquid level is significantly improved due to the surface tension of the liquid material, the rise in the liquid level can be clearly recognized, and a more accurate measurement of the predetermined liquid volume is possible. It becomes possible. Further, as with the measuring cap of (1) above, as the liquid material is poured, the change in the liquid level becomes smaller and the rising speed of the liquid level becomes slower.

(6) The measuring cap according to (5), wherein the measuring surface is a spiral surface that goes around at least once around the protruding direction of the measuring convex portion.
According to the measuring cap of (6) above, the gentleness and area of the spiral surface that is the measuring surface can be maximized, and the rising speed of the boundary line between the spiral surface and the liquid surface during measurement can be increased. At the same time, since the boundary line can be increased, it is possible to further improve the line-of-sight of the liquid surface.

  (7) A cap that is detachably fitted and fixed to the mouth of the container body for filling a liquid material, and that can be measured by pouring the liquid material in an inverted state by removing it from the container body, A wall, a side wall provided to extend downward from the peripheral edge of the top wall, and provided with a fitting portion on the inner peripheral surface for fixing to the mouth of the container body, and spaced apart from the inner peripheral surface of the side wall. It is provided so as to protrude in a columnar shape downward from the lower surface of the wall, and at least a part thereof is a concave surface or a convex surface as a measuring surface where the boundary with the liquid surface of the liquid material poured into the cap is visible from the opening of the cap A weighing cap comprising a weighing projection having a weighing surface on a lower surface.

  According to the measuring cap of (7) above, by providing a convex surface on the lower surface of the column-shaped measuring convex portion, when the liquid level reaches the lower surface of the measuring convex portion, the influence of the surface tension of the liquid material etc. Thus, since it is very easy to visually recognize that the liquid surface is transmitted through the convex surface, the predetermined liquid amount can be measured almost accurately and easily. In addition, by providing a concave surface on the lower surface of the column-shaped measuring convex portion, it becomes very easy to visually recognize that the liquid surface is transmitted through the concave surface, and when the liquid material enters the concave surface, the liquid surface rises and waves. Since the undulations stop immediately after standing, a predetermined amount of liquid can be measured almost accurately and easily.

  (8) A cap that is detachably fitted and fixed to the mouth of the container body for filling the liquid material, and that can be measured by pouring the liquid material in an inverted state by removing it from the container body, A wall, a side wall provided to extend downward from the peripheral edge of the top wall, and provided with a fitting portion on the inner peripheral surface for fixing to the mouth of the container body, and spaced apart from the inner peripheral surface of the side wall. As a measuring surface that protrudes downward from the lower surface of the wall and consists of a plurality of unit convex portions arranged annularly at intervals, the boundary with the liquid level of the liquid material poured into the cap can be seen from the opening of the cap A measuring cap having a measuring surface composed of lower surfaces of a plurality of unit protruding portions.

  According to the measuring cap of (8) above, by providing a measuring convex portion consisting of a plurality of unit convex portions arranged annularly at intervals, and by setting the lower surface of the plurality of unit convex portions as a measuring surface, When the liquid material is poured, the lower surfaces of the plurality of unit protrusions are visually recognized as protruding from the liquid surface at a distance from each other. The predetermined liquid amount can be measured almost accurately and easily.

  (9) A cap that is detachably fitted and fixed to the mouth portion of the container body for filling the liquid material, and can be measured by pouring the liquid material in an inverted state by removing it from the container body, A wall, a side wall provided to extend downward from the peripheral edge of the top wall, and provided with a fitting portion on the inner peripheral surface for fixing to the mouth of the container body, and spaced apart from the inner peripheral surface of the side wall. It consists of a plurality of plate-like wings that protrude downward from the lower surface of the wall and are radially arranged around the protruding direction as the axis, and the boundary between the liquid surface poured into the cap and the liquid surface is the opening of the cap A measuring cap comprising: a measuring convex portion having a measuring surface formed of a radially lower surface of the plurality of wing portions as a measuring surface that can be visually observed from the top.

  According to the measuring cap of (9) above, the measuring convex portion including a plurality of plate-like wing portions arranged radially around the projecting direction is provided, and the plurality of wing portions in plan view. By setting the radial lower surface as the metering surface, the metering surface can be easily viewed in three dimensions, and the area of the metering surface increases, so it is easy to see the coincidence between the liquid surface and the metering surface, and the predetermined liquid volume Can be measured almost accurately and easily.

(10) The measuring cap according to (9), wherein the projecting direction dimension of the wing part decreases or increases continuously or stepwise toward the inner peripheral surface of the side wall.
Of the measuring caps of the above (10), according to the cap in which the projecting direction dimension of the wing portion decreases continuously or stepwise in the direction toward the inner circumferential surface of the side wall, the inner circumferential surface of the wing portion faces each other. Since the side surface becomes an inclined surface and it becomes very easy to visually recognize that the liquid surface is transmitted through the surface of the inclined surface due to the influence of the surface tension of the liquid material, the predetermined amount of liquid can be measured almost accurately and easily. Moreover, according to the cap in which the dimension in the protruding direction of the wing part increases continuously or stepwise in the direction toward the inner peripheral surface of the side wall among the measuring caps of (10), the axis of each wing part is faced. Since the side surface becomes a slope and it is very easy to visually recognize that the liquid surface is transmitted along the surface of the slope, the predetermined amount of liquid can be measured almost accurately and easily.

(11) A container body having a mouth and filled with a liquid material, and for any one of the above (1) to (10) that is detachably fitted to the mouth via a fitting means. And a cap.
According to the container of (11) above, by removing the measuring cap that is externally fitted and fixed to the mouth portion that is the spout of the container body filled with the liquid material, and pouring the liquid material into the cap, An appropriate amount of liquid can be measured almost accurately and easily.

(12) The container according to (11), wherein the liquid is a mouthwash, a liquid quasi-drug, or a liquid medicine for internal use.
According to the container of the above (12), even when the liquid is a mouthwash, a liquid quasi-drug, or a liquid medicine for internal use, the container main body is maintained without impairing the excellent measurement property of the liquid by the measuring cap. In addition, the cap can be made of an opaque material, and deterioration of the liquid material due to light can be prevented.

  According to the present invention, the top wall, the side wall portion extending downward from the peripheral portion of the top wall, the metering projecting downward from the lower surface of the top wall and spaced apart from the inner peripheral surface of the side wall, and having a surface of a predetermined shape as the metering surface It is possible to provide a measuring cap and a container provided with the cap, each of which includes a convex portion for use and can measure the liquid substance almost accurately and easily.

It is a schematic diagram which shows the structure of the cap for measurement of 1st Embodiment of this invention. It is a schematic diagram which shows the structure of the modification of the measuring cap shown in FIG. It is a schematic diagram which shows the structure of the modification of the measuring cap shown in FIG. It is a schematic diagram which shows the structure of the modification of the measuring cap shown in FIG. It is a schematic diagram which shows the structure of the cap for measurement of 2nd Embodiment of this invention. It is a schematic diagram which shows the structure of the modification of the measuring cap shown in FIG. It is a schematic diagram which shows the structure of the measuring cap of 3rd Embodiment of this invention, and its modification. It is a schematic diagram which shows the structure of the measurement cap of 4th Embodiment of this invention, and its modification. It is a schematic diagram which shows the structure of the measuring cap of 5th Embodiment of this invention, and its modification. It is a schematic diagram which shows the structure of the modification of the measuring cap shown in FIG. It is a schematic diagram which shows the structure of the cap for measurement of 6th Embodiment of this invention. It is a schematic diagram which shows the structure of the modification of the measuring cap shown in FIG. It is a schematic diagram which shows the structure of the measuring cap of 7th Embodiment of this invention.

  FIG. 1 is a schematic diagram showing a configuration of a measuring cap (hereinafter simply referred to as “cap”) 1 according to a first embodiment of the present invention. (A) is a perspective view showing an external shape, (b) is a perspective view in an inverted state, (c) is a top view in an inverted state, and (d) is a cross-sectional view taken along the line XX in (c). It is a perspective view. In the present specification, assuming the inverted cap, the lower surface of each measuring convex portion may be referred to as a top surface. The cap 1 of this embodiment protrudes downward from the top wall 15, the side wall 16 extending downward from the peripheral edge of the top wall 15, and the lower surface 31 of the top wall 15, and is separated from the inner peripheral surface 32 of the side wall 16. The measurement convex part 17 is provided, and as will be described later, the four side surfaces 36 of the measurement convex part 17 are concave surfaces.

  The cap 1 has a cylindrical shape with a bottom, and is detachably fitted and fixed to a mouth portion that is a spout of a container body (not shown) filled with a liquid material. In addition to preventing leakage, it has a function of measuring a predetermined amount of the liquid material by pouring the liquid material into an inverted state by being removed from the container body. The outer shape of the cap 1 is not limited to a bottomed cylindrical shape, and may be any shape such as a bottomed polygonal shape. The material constituting the cap 1 and the container body may be a transparent material or an opaque material. However, it is preferable to use an opaque material because it can be used for all liquid materials. Moreover, it is although it does not specifically limit as a liquid substance with which a container main body is filled, For example, a mouthwash, a liquid quasi-drug, a liquid medicine for internal use, various liquid detergents, a softener for clothes, a liquid agricultural chemical, etc. are mentioned.

The top wall 15 has a substantially circular shape, but the shape is not particularly limited, and may be an arbitrary polygonal shape, for example.
A plurality of recesses 33 are arranged on the outer peripheral surface 30 of the side wall 16 at a predetermined interval in the circumferential direction, so that the cap 1 can be easily attached to and detached from the mouth of the container main body filled with the liquid material. The shape of the recess 33 is triangular in this embodiment, but can be any shape. Instead of the concave portion 33, a convex portion having an arbitrary shape may be provided, and the concave portion 33 and the convex portion may not be provided.

  Further, a thread 34 is formed at a predetermined position on the inner peripheral surface 32 of the side wall 16 as a fitting portion for externally fixing and fixing the cap 1 to the mouth portion of the container body. The cap 1 is fitted and fixed to the mouth by screwing it to the mountain. In the present embodiment, a step is provided in the vicinity of the opening of the cap 1 on the inner peripheral surface 32 of the side wall 16. This step is preferably provided at the same position as the top surface 35 of the measuring convex portion 17 described later in the lateral direction from the viewpoint of further improving the visibility of the liquid level, etc. It can also be provided at a low position, and may not be provided. Further, from the viewpoint of further improving the visibility of the liquid level, the region of the inner peripheral surface 32 of the side wall 16 facing the side surface 36 of the measuring convex portion 17 can be colored in a color different from that of the cap 1.

  In the present embodiment, the boundary portion between the top wall 15 and the side wall 16 on the outer peripheral surface 30 of the cap 1 is configured with a gentle curved surface. However, the present invention is not limited to this, and the flat surface and the peripheral edge of the surface are not limited thereto. The outer peripheral surface which consists of a cylindrical surface extended substantially perpendicularly | vertically with respect to this surface may be sufficient.

  The measuring convex portion 17 is provided substantially coaxially with the top wall 15, has a substantially square frustum shape, and has a top surface 35 that is a substantially flat surface and four side surfaces 36 that are inclined surfaces. .

  The top surface 35 is a measurement reference surface, and a predetermined amount of liquid can be measured by pouring the liquid material until the liquid level is almost the same height as the top surface 35. Since the top surface 35 has a relatively large area, the surface tension or the like of the liquid material easily acts. That is, immediately before the liquid surface infiltrates the top surface 35, the surface tension of the liquid material acts, and the infiltration of the top surface 35 by the liquid surface is suppressed for a short time. It becomes easy to visually recognize that the value of 35 has been reached. If the top surface 35 is convex or concave, the effect is further increased and the visibility is further improved.

  Each of the four side surfaces 36 is a concave surface that is recessed in the axial direction of the measurement convex portion 17, and a measurement surface (hereinafter simply referred to as the liquid surface of the liquid material poured into the cap 1 can be seen from the opening of the cap 1. Functions as a “metering surface”. When the side surface 36 is concave, the boundary between the surface of the side surface 36 and the liquid level can be easily recognized, and the position of the liquid level can be easily understood. By making the side surface 36 smoother and / or increasing the area of the side surface 36, the position of the liquid surface can be more easily understood. In addition, since a ridge line is formed between one side surface 36 and the side surface 36 adjacent thereto, the visibility of the liquid level is further improved by this ridge line. The side surface 36 can be formed with one or a plurality of grooves and / or recesses extending in the protruding direction of the measuring convex portion 17. Due to the formation of such grooves and recesses, the change in the liquid level at the beginning of pouring becomes large, and it becomes easier to perceive the timing at the end of pouring from the comparison with the liquid level before the end of pouring.

  Moreover, since the convex part 17 for measurement protrudes from the lower surface 31 of the top wall 15 substantially coaxially with the top wall 15, and the cross-sectional area of the convex part 17 for measurement is continuously decreasing in the protrusion direction, it begins to pour. The liquid level changes (turbulence) and the rising speed of the liquid level is large, but as the liquid is poured, the change of the liquid level decreases and the rising speed of the liquid level decreases. As a result, it is possible to detect that the end of the metering is close and to adjust the amount to be poured, so that more accurate metering is possible. Further, by providing the measuring convex portion 17, the visibility of the liquid level is remarkably improved and the liquid material can be made colorless and transparent, so the degree of freedom in designing the liquid material filled in the container body is also improved. .

  The shape of the measuring convex portion 17 of the present embodiment is a quadrangular frustum shape, but is not particularly limited as long as the side surface that is a slope is a concave surface. For example, a triangular frustum, a pentagonal frustum, a hexagonal frustum, etc. It may be an arbitrary frustum shape such as a truncated pyramid shape or a truncated cone shape, and may be a polygonal pyramid such as a triangular pyramid or a quadrangular pyramid, or a conical shape such as a cone.

  Further, in the present embodiment, an annular thin wall shape that is spaced apart from the measuring convex portion 17 and the inner peripheral surface 32 of the side wall 16 and surrounds the measuring convex portion 16 and projects downward from the lower surface 31 of the top wall 15. Although the liquid leakage prevention member is provided, this member may or may not be provided.

  FIG. 2 (FIGS. 2A to 2D) is a schematic diagram illustrating a configuration of caps 2A to 2D which are modifications of the cap 1. FIG. 2A, 2B, and 2D, (a) is a perspective view showing an external shape, (b) is a perspective view in an inverted state, (c) is a top view in an inverted state, and (d) is (c). It is a cross-sectional perspective view in the XX cut surface. In FIG. 2C, (a) is a perspective view showing an external shape, (b) is a top view in an inverted state, and (c) is a cross-sectional perspective view taken along the line XX in (b). In FIG. 2C and FIG. 2D, illustration of the thread which is a fitting part for carrying out the outer fitting fixation of the caps 2C and 2D to the mouth part of a container main body is abbreviate | omitted.

  The cap 2A shown in FIG. 2A has a measurement convex portion 17A that protrudes downward from the lower surface 31 substantially coaxially with the top wall 15. The measuring convex portion 17 </ b> A includes a substantially quadrangular prism-shaped base portion 37 connected to the lower surface 31, and a substantially quadrangular frustum-shaped protruding portion 38 connected to the base portion 37. The protruding portion 38 has a top surface 39 and four side surfaces 40, and each side surface 40 is a concave surface that is recessed in the axial direction of the measuring convex portion 17A. In the cap 2A, the top surface 39 is a measurement reference surface, and each side surface 40 is a measurement surface. The cap 2A has the same effect as the cap 1.

  In addition, by providing the quadrangular columnar base 37, when the boundary line with the liquid surface shifts from the quadrangular columnar base 37 to the quadrangular frustum-shaped protrusion 38, a dynamic change occurs in the boundary line. Such dynamic changes alert the measurer that the end of the measurement is approaching. Moreover, since the curvature of each side surface 40 of the protrusion part 38 can be made smaller by providing the square columnar base 37, the visibility of the liquid level can be further improved.

  The cap 2B shown in FIG. 2B has a measuring convex portion 17B that protrudes downward from the lower surface 31 substantially coaxially with the top wall 15 and has a substantially rectangular shape whose section in the protruding direction is long in one direction. Since the measuring convex portion 17B has a rectangular top surface 41 which is a measurement reference surface and has a large area, the coincidence between the top surface 41 and the liquid surface is more easily visible. Further, of the four side surfaces 42 and 43 that are concave surfaces in the axial direction of the measuring convex portion 17B and function as the measuring surface, the area of the side surface 43 facing the thickness direction of the measuring convex portion 17B is increased. Therefore, the boundary between the side surface 43 and the liquid level becomes easier to visually recognize, and the rise of the liquid level becomes easier to understand. The cap 2B has the same effect as the cap 1.

  The cap 2C shown in FIG. 2C has a measuring convex portion 17C that protrudes downward from the lower surface 31 of the top wall 15 and has a substantially trapezoidal cross-sectional shape in the width direction. Since the measurement convex portion 17C has the top surface 44 as a measurement reference surface, the end of measurement can be visually confirmed, and the measurement convex portion 17C has a side surface 45 that is a concave slope. The cap 2C has the same effect as the cap 1.

  The cap 2D shown in FIG. 2D has a measuring convex portion 17D that protrudes downward from the lower surface 31 of the top wall 15 and has a shape in which a square frustum is twisted by a predetermined angle in the circumferential direction. The measurement convex portion 17D has a top surface 46 that is a measurement reference surface and four side surfaces 47 that are measurement surfaces and are concave surfaces. In this embodiment, since the ridgeline formed at the boundary between one side surface 47 and the other side surface 47 adjacent thereto is a curve, the effect of visually recognizing the liquid surface by the ridgeline is slightly reduced, but the flat top The effect of providing the surface 46 and the concave side surfaces 47 is equivalent to that of the cap 1 and the caps 2A to 2C, and a predetermined liquid amount can be measured almost accurately and easily.

  FIG. 3 (FIGS. 3A to 3C) is a schematic diagram illustrating the configuration of caps 3 </ b> A to 3 </ b> C that are modifications of the cap 1. 3A and 3C, (a) is a perspective view showing an external shape, (b) is a perspective view in an inverted state, (c) is a top view in an inverted state, and (d) is an X in (c). It is a cross-sectional perspective view in a -X cut surface. 3B, (a) is a perspective view showing an external shape, (b) is a top view in an inverted state, and (c) is a cross-sectional perspective view taken along the line XX of (b). In FIG. 3C, illustration of a thread that is a fitting portion for externally fixing the cap 3C to the mouth portion of the container body is omitted.

  The cap 3A shown in FIG. 3A has a measuring convex portion 18A that protrudes downward from the lower surface 31 substantially coaxially with the top wall 15 and has a substantially octagonal truncated cone shape. The measurement convex portion 18A has a substantially octagonal top surface 50 as a measurement reference surface and eight side surfaces 51 formed of concave surfaces as measurement surfaces. In this embodiment, since the top surface 50 can be made large by making the top surface 50 octagonal, it is easy to visually recognize the coincidence between the top surface 50 and the liquid surface. Further, each side 51 is divided into eight parts so that the area thereof is relatively small, but since it is concave, the visibility of the boundary between the surface of each side 51 and the liquid level is good. is there. The cap 3A has the same effect as the cap 1.

  The cap 3B shown in FIG. 3B has a measuring convex portion 18B that protrudes downward from the lower surface 31 substantially coaxially with the top wall 15 and has a substantially truncated cone shape. The measurement convex portion 18B has a substantially circular top surface 52 as a measurement reference surface, and has a side surface 53 formed of a concave conical surface as a measurement surface. In the present embodiment, the side surface 53 is a conical surface and does not have a ridge line such as a truncated pyramid or a pyramid, but the top surface 52 is easily circular and has a large area, and the side surface 53 Since the conical surface is a concave surface, the amount of liquid can be measured almost accurately and easily. The cap 3B has the same effect as the cap 1.

  The cap 3C shown in FIG. 3C protrudes downward from the lower surface 31 substantially coaxially with the top wall 15, has a basic shape of a substantially truncated cone, has four corners cut out into a right triangular pyramid, and has a cruciform shape in plan view. It has a convex portion 18C for measurement. The measurement convex portion 18C has a substantially circular top surface 52 as a measurement reference surface, and has four side surfaces 54 that are band-like concave surfaces as measurement surfaces. According to the measuring convex portion 18C, the liquid can be poured while confirming the rise of the liquid level by the side surface 54. When the liquid level reaches the vicinity of the top surface 52, the liquid surface is infiltrated into the top surface 52. Since it can be clearly seen that it is suppressed for a moment, accurate weighing can be performed. The cap 3 </ b> C has the same effect as the cap 1.

  FIG. 4 (FIGS. 4A to 4B) is a schematic diagram illustrating a configuration of caps 4A to 4B, which are modifications of the cap 1. FIG. 4A is a perspective view showing an external shape, FIG. 4B is a top view in an inverted state, and FIG. 4C is a cross-sectional perspective view taken along the line XX in FIG. 4B. 4B, (a) is a perspective view showing an external shape, (b) is a perspective view in an inverted state, (c) is a top view in an inverted state, and (d) is an XX in (c). It is a cross-sectional perspective view in a cut surface.

  The cap 4A shown in FIG. 4A has a measurement convex portion 19A that protrudes downward from the lower surface 31 substantially coaxially with the top wall 15. The measurement convex portion 19A has a substantially quadrangular truncated pyramid base portion 55 having four side surfaces 58 formed of concave surfaces, and a prismatic portion 56 having a rectangular flat top surface 59 protruding downward from the top surface 57 of the base portion 55. Each side surface 58 of the base portion 55 becomes a measurement surface, and the top surface 59 of the prism portion 56 becomes a measurement reference surface. The liquid is poured while confirming the rise of the liquid level by the side surface 58 of the base 55, and when the top surface 57 of the base 55 is buried in the liquid, it is predicted that the end of the measurement is near, and the top surface 59 of the prism 56 is Since it becomes easy to pour the liquid material up to, it is possible to measure the predetermined amount of liquid almost accurately. The ratio of the height of the base portion 55 and the prism portion 56 can be changed as appropriate. In the present embodiment, the prisms 56 are stacked on the base 55 and configured in two stages, but a plurality of prisms and / or cylinders may be stacked and configured in three or more stages. The cap 4A has the same effect as the cap 1.

  The cap 4B shown in FIG. 4B has a measuring convex portion 19B that protrudes downward from the lower surface 31 substantially coaxially with the top wall 15. The measuring convex portion 19B protrudes downward from a substantially pyramidal base portion 55 having four concave side surfaces 58 and a top surface 57 of the base portion 55, and is rotated about 90 degrees in the circumferential direction with respect to the base portion 55. In addition, the prism 61 has a square columnar shape and the top surface 61 is a flat surface. The four side surfaces 58 of the base 55 are measurement surfaces, and the top surface 61 of the prism 60 is a measurement reference surface. The ratio of the height (projection direction dimension) between the base portion 55 and the prism portion 60 can be changed as appropriate. Similarly to the cap 1, the cap 4B has an effect that a predetermined amount of liquid can be measured almost accurately and easily.

  FIG. 5 is a schematic diagram showing the configuration of the cap 5 according to the second embodiment of the present invention. (A) is a perspective view showing an external shape, (b) is a perspective view in an inverted state, (c) is a top view in an inverted state, and (d) is a cross-sectional view taken along the line XX in (c). It is a perspective view.

  The cap 5 protrudes downward from the lower surface 31 of the top wall 15 substantially coaxially with the top wall 15, and has a measuring projection 20 having a substantially cylindrical outer shape. The lower surface (top surface) of the measuring convex portion 20 that is substantially circular in plan view gradually rises while circling around the axis in the protruding direction of the measuring convex portion 20 from the lower end 62a toward the upper end 62b. A cylindrical projection having a top surface 64 which is a substantially circular flat surface protrudes from a central portion of the lower surface, which is composed of a spiral surface 62 and a flat surface 63 following the spiral surface 62 from the upper end 62b. In addition, between the lower end 62a of the spiral surface 62 and the end side of the flat surface 63 on the side not contacting the spiral surface 62, the flat surface rises from the lower end 62a in the protruding direction of the measuring convex portion 20 and continues to the end side. Walls are formed. In this embodiment, the flat surface 63 may not be provided, and the spiral surface 62 may be configured to rotate once around the axis, and the spiral angle of the spiral surface 62 may be set according to the width dimension of the flat surface 63. You may adjust.

  By adopting the spiral surface 62 functioning as a measuring surface, the rising speed of the boundary line with the liquid surface is increased and the length of the boundary line is also increased, so that the boundary between the surface of the spiral surface 62 and the liquid surface is increased. Is very easy to distinguish. Even when the rising speed of the boundary line increases, the adoption of the spiral surface 62 makes the slope length significantly longer than that of the cap 1 of the first embodiment, thereby preventing the occurrence of measurement errors. . For example, the flat surface 63 has a function of notifying that the weighing will be finished soon. The top surface 64 functions as a measurement reference surface, for example. The liquid surface is poured while confirming the position of the liquid surface by the spiral surface 62, and when the liquid surface reaches the flat surface 63, it is predicted that the measurement will be completed soon. Therefore, the liquid surface is formed without paying special attention. The liquid material can be poured until the top surface 64 is reached, and the predetermined amount of liquid can be measured almost accurately and easily.

  6 (FIGS. 6A to 6C) is a schematic diagram showing a configuration of caps 6A, 6B, and 6C, which are modifications of the cap 5 shown in FIG. (A) is a perspective view showing an external shape, (b) is a perspective view in an inverted state, (c) is a top view in an inverted state, and (d) is an XX cut surface or Y in (c). It is a cross-sectional perspective view in a -Y cut surface.

  A cap 6A shown in FIG. 6A has a measuring convex portion 20A that protrudes downward from the lower surface 31 of the top wall 15 substantially coaxially with the top wall 15 and has a substantially cylindrical outer shape. The measurement convex portion 20A has a substantially circular lower surface, and a lower surface thereof includes a spiral surface 62 as a measurement surface and a flat surface 63 following the spiral surface 62, and a substantially cylindrical cavity at the center of the lower surface. 65 is formed. The tip region in the projecting direction of the measuring convex portion 20A in the cavity 65 becomes the measuring reference surface. The spiral surface 62 and the flat surface 63 have the same configuration as the measuring convex portion 20. By forming the cylindrical cavity 65 in the central portion of the lower surface, the boundary between the liquid surface and the tip region of the cavity 65 can be clearly distinguished, and it can be seen that almost the predetermined liquid amount has been reached. The predetermined liquid amount can be measured almost accurately and easily. The volume of the cavity 65 is appropriately set in consideration of the liquid property (for example, viscosity) of the liquid material to be measured.

  The cap 6B shown in FIG. 6B has a measuring convex portion 20B that protrudes downward from the lower surface 31 of the top wall 15 substantially coaxially with the top wall 15 and has a substantially circular shape in plan view. The convex portion 20B for measurement has a columnar projection 66 whose lower surface (top surface) is a spiral surface, and is substantially plate-shaped in cross section in contact with the columnar projection 66 (however, the side surface facing the inner peripheral surface 32 of the side wall 16). Is a plate-like protrusion 67 having a substantially flat top surface 68 at a position higher than the spiral surface. The plate-like protrusion 67 is in contact with the spiral surface of the columnar protrusion 66 at a side surface that does not face the inner peripheral surface 32 of the side wall 16. The spiral surface gradually rises around the side surface of the plate-like protrusion 67 with the protruding direction of the measuring convex portion 20B as an axis. In the present embodiment, the spiral surface is a measurement surface, and the top surface 68 is a measurement reference surface, which has the same effect as the cap 5.

  In the present embodiment, the spiral axis of the spiral surface provided as the top surface of the columnar protrusion 66 can be moved outward from the axis of the columnar protrusion 66. For example, when the spiral axis of the spiral surface is moved outward in the middle of the protruding direction of the columnar protrusion 66, a spiral surface having a larger area than the lower end and the upper end can be obtained. When the liquid material is poured into such a spiral surface, the length of the boundary line with the liquid surface rising on the spiral surface is small at the lower end, large at the middle, and small at the upper end, It becomes easier to visually recognize the boundary with the liquid level.

  A cap 6 </ b> C shown in FIG. 6C has a measurement convex portion 20 </ b> C that protrudes downward from the lower surface 31 of the top wall 15 substantially coaxially with the top wall 15. The convex portion for measurement 20C rises from the plate-like protrusion 67 and one end located in the vicinity of the plate-like protrusion 67, and gradually moves around the projection direction toward the other end in contact with the plate-like protrusion 67. And an arcuate projection 69 that is a spiral surface that circulates while rising. The lower surface (top surface) of the arc-shaped protrusion 69 is a spiral surface. The plate-like protrusion 67 has the same configuration as the cap 6B. In the cap 6 </ b> C, the spiral surface of the arc-shaped protrusion 69 is a measuring surface, and the top surface 68 of the plate-shaped protrusion 67 is a measuring reference surface.

  In the embodiment shown in FIGS. 5 and 6, the spiral surface is the measurement surface, and the columnar protrusion or the columnar cavity or the top surface of the plate-like protrusion attached to the spiral surface is the measurement reference surface. The measuring surface is configured to rotate at least one rotation around the protruding direction of the measuring convex as an axis, and the upper end of the spiral surface is used as a measuring reference area, or a flat surface is provided at the upper end of the spiral surface to determine the measuring reference. It may be a surface. This is based on the very good visibility of the boundary between the spiral surface and the liquid surface. Moreover, in this embodiment, the visibility of a liquid level can be improved further by using the spiral surface colored in the color different from a cap.

  FIG. 7 (FIGS. 7A and 7B) is a schematic diagram showing the configuration of a cap 7A according to the third embodiment of the present invention and a cap 7B which is a modified example thereof. The embodiment shown in FIG. 7 is characterized in that the measuring convex portion is composed of a plurality of unit convex portions arranged in an annular shape at intervals. 7A and 7B, (a) is a perspective view showing an external shape, (b) is a top view in an inverted state, and (c) is a cross-sectional perspective view of the YY cut surface of (b). . In FIGS. 7A and 7B, illustration of a thread that is a fitting portion for externally fixing and fixing the caps 7A and 7B to the mouth portion of the container body is omitted.

  The cap 7A shown in FIG. 7A protrudes downward from the lower surface 31 of the top wall 15 substantially coaxially with the top wall 15, and is composed of three arc-shaped unit convex portions 70 arranged in an annular shape at intervals. The top surface 71 of each arc-shaped unit convex portion 70 also serves as a measurement surface and a measurement reference surface. The cap 7A has a plurality of top surfaces 71 spaced apart from each other and arranged in a substantially circular shape so that it is easy to visually recognize the coincidence between the top surfaces 71 and the liquid level. Easy to measure. In the present embodiment, the number of arc-shaped unit convex portions 70 is not limited to three, and can be set to one or a plurality of arbitrary numbers while appropriately adjusting the width-direction dimensions of the arc-shaped unit convex portions 70.

  The cap 7B shown in FIG. 7B protrudes downward from the lower surface 31 of the top wall 15 substantially coaxially with the top wall 15, is arranged in an annular shape with a space therebetween, and protrudes toward the inner peripheral surface 32 of the side wall 16. The measuring convex portion 21B is composed of three arc-shaped unit convex portions 72 whose side end portions are inclined. The inner peripheral surface 32 of the arc-shaped unit convex portion 72 is a concave surface whose side surface (inner surface) on the non-opposing side is inclined, and the boundary between the side surface and the liquid surface is very easy to visually recognize. The substantially flat top surface 73 of the arc-shaped unit convex portion 72 also serves as a measurement surface and a measurement reference surface. The cap 7B has the same effect as the cap 7A.

  FIG. 8 (FIGS. 8A and 8B) is a schematic diagram showing a configuration of a cap 8A according to the fourth embodiment of the present invention and a cap 8B which is a modified example thereof. The embodiment shown in FIG. 8 is characterized in that the measuring convex portion is composed of a plurality of plate-shaped wing portions arranged radially around the projecting direction as an axis. 8A and 8B, (a) is a perspective view showing an external shape, (b) is a top view in an inverted state, and (c) is a cross section taken along the line XX or YY of (b). It is a perspective view. In FIG. 8A, illustration of the thread which is a fitting part for externally fixing and fixing the cap 8A to the mouth part of the container body is omitted.

  The cap 8A protrudes downward from the lower surface 31 of the top wall 15 substantially coaxially with the top wall 15, and is arranged radially around the protruding direction as an axial center, and is connected to each other at the axial center portion. The measuring convex portion 22 </ b> A including the plate-like wing portion 74 is provided. In the present embodiment, the radial top surface 75 formed by connecting the top surfaces of the eight plate-like wing portions 74 serves as the measurement surface and the measurement reference surface. The cap 8A has a radial top surface 75 and has a large area, so that the top surface 75 can be easily viewed three-dimensionally. Therefore, the coincidence between the top surface 75 and the liquid surface can be easily visually confirmed. Can be measured almost accurately and easily. In the present embodiment, the number of the plate-like wing portions 74 can be an arbitrary number of 3 or more.

  The cap 8B protrudes downward from the lower surface 31 of the top wall 15 substantially coaxially with the top wall 15, and is arranged in a cross shape radially around the protruding direction as an axis, and is connected to each other at the axis portion. It has the convex part 22B for measurement which consists of a piece of plate-like wing part 76. In the present embodiment, the top surface 77 having a cross shape in plan view formed by connecting the top surfaces of the four plate-like wing portions 76 serves as both the measurement surface and the measurement reference surface. Since the top surface 77 has a cross shape and has a large area and facilitates three-dimensional viewing, the cap 8B has the same effect as the cap 8A.

  FIG. 9 (FIGS. 9A and 9B) is a schematic diagram showing a configuration of a cap 9A according to the fifth embodiment of the present invention and a cap 9B which is a modified example thereof. In the embodiment shown in FIG. 9, the height (projection direction) dimension of the plate-like wing portion continuously decreases toward the inner peripheral surface 32 of the side wall 16 in the measuring convex portion including a plurality of plate-like wing portions. It is characterized by doing. In FIG. 9A, (a) is a perspective view showing an external shape, (b) is a top view in an inverted state, and (c) is a cross-sectional perspective view of the YY cut surface of (b). 9B, (a) is a perspective view showing an external shape, (b) is a perspective view in an inverted state, (c) is a top view in an inverted state, and (d) is YY of (c). It is a cross-sectional perspective view in a cut surface.

  The cap 9A shown in FIG. 9A has a measuring convex portion 23A. The measuring convex portion 23A protrudes downward from the lower surface 31 of the top wall 15 substantially coaxially with the top wall 15, and is arranged radially in a cross around the protruding direction as an axial center. It consists of four connected plate-like wings 78. Each plate-like wing portion 78 gradually decreases in height (projection direction) in the direction from the axial center toward the inner peripheral surface 32 of the side wall 16, and its top surface 78a is a concavely inclined concave surface. . The measuring convex portion 23A further has a top surface 79 which is a substantially circular flat surface in the axial center portion, and the top surface 78a of each plate-like wing portion 78 extends in all directions following the top surface 79. Yes. In the cap 9A of the present embodiment, the top surface 79 serves as a measurement surface and a measurement reference surface, and each top surface 78a functions as an auxiliary measurement surface, so that a predetermined amount of liquid can be measured almost accurately and easily.

  The cap 9B shown in FIG. 9B has a measurement convex portion 23B. The convex portions 23B for measurement protrude downward from the lower surface 31 of the top wall 15 so as to be substantially coaxial with the top wall 15, and are arranged radially in a cross around the protruding direction as an axial center, and in the axial center portions, It consists of four plate-like wing parts 80 connected. Each plate-like wing portion 80 gradually decreases in height (projection direction) in the direction from the axial center toward the inner peripheral surface 32 of the side wall 16, and the top surface 81 is a convex surface that is gently inclined. . The measuring convex portion 23B has a top surface in which the top surface 81 of each plate-like wing portion 80 extends in four directions following the substantially flat surface in the axial core portion. In the cap 9B of the present embodiment, the top surface of the measuring convex portion 23B serves as a measuring surface and a measuring reference surface, and each top surface 81 functions as a measuring surface as an auxiliary. Easy to measure.

  10 (FIGS. 10A to 10C) is a schematic diagram showing a configuration of caps 10A, 10B, and 10C, which are modifications of the caps 9A and 9B shown in FIG. In the embodiment shown in FIG. 10, the height (projection direction) dimension of the plate-like wing portion continuously increases toward the inner peripheral surface 32 of the side wall 16 in the measuring convex portion including a plurality of plate-like wing portions. It is characterized by doing. 10A to 10C, (a) is a perspective view showing an external shape, (b) is a top view in an inverted state, and (c) is a cross-sectional perspective view taken along line XX in (b). . In FIG. 10, illustration of a thread that is a fitting portion for externally fixing the caps 10 </ b> A, 10 </ b> B, and 10 </ b> C to the mouth portion of the container body is omitted.

  A cap 10A shown in FIG. 10A has a measuring convex portion 24A. The measuring convex portion 24A protrudes downward from the lower surface 31 of the top wall 15 so as to be substantially coaxial with the top wall 15, and is radially arranged around the protruding direction as an axial center. It consists of four connected plate-like wings 82. The top surface (lower surface) of each plate-like wing portion 82 has a flat first top surface 83a that is an end portion of a predetermined dimension on the side facing the inner peripheral surface 32, and the first top surface 83a. The second top surface 83b is a concave surface that is gently inclined toward the direction. The second top surface 83b is configured by gradually increasing the height (projection direction) dimension of each plate-shaped wing portion 82 from the axial center of the measuring convex portion 24A toward the inner peripheral surface 32 of the side wall 16. . The four second top surfaces 83b are connected at the axial center of the measuring convex portion 24A. In the cap 10A of the present embodiment, the first top surface 83a of the measuring convex portion 24A serves both as a measuring surface and a measuring reference surface, and the second top surface 83b functions as a measuring surface as an auxiliary function. Can be measured almost accurately and easily.

  A cap 10B shown in FIG. 10B has a measuring convex portion 24B. The measuring convex portion 24B has a height (projection direction) dimension of the connecting portion at the axial center portion of each plate-like wing portion 82, which is lower than that of the measuring convex portion 24A. Except that the proportion of the height (projection direction) dimension gradually increasing from the axial center of the measurement convex portion 24B toward the inner peripheral surface 32 of the side wall 16 is larger than that of the measurement convex portion 24A. It has the same configuration as the convex portion 24A. According to the measurement convex portion 24B, the area of the second top surface 83b, which is an inclined concave surface, is larger than that of the measurement convex portion 24A, and the visibility of the liquid level is further improved. Accurate and easy to measure.

  The cap 10C shown in FIG. 10C is arranged radially (or in an annular shape) with the protruding direction as an axis, and has eight top surfaces 85 that are flat surfaces of a predetermined size at the end on the inner peripheral surface 32 side. A measuring convex portion 24 </ b> C composed of a plate-like wing portion 84 is provided. Each plate-like wing portion 84 is connected at the lower end portion of the measuring convex portion 24C, and is separated through a gap at the upper end portion and in the vicinity thereof, thereby forming a recess therein. Each of the plate-like blades has a height (projection direction) dimension of the connecting portion at the lower end portion lower than that of the measuring convex portion 24B and from the axis of the measuring convex portion 24C toward the inner peripheral surface 32 of the side wall 16. The rate at which the height (projection direction) dimension of the portion 84 increases is larger than that of the measuring convex portion 24B. According to the measurement convex portion 24C, the top surface 85 becomes the measurement surface and the measurement reference surface, and the inclined concave surface facing the axis of each plate-like wing portion 84 functions as a measurement surface.

  According to the measuring convex portion 24C, when the liquid level approaches the top surface 85 of the plate-like wing portion 84 and the measurement is about to end, the liquid material flows into the recesses from the gap between the plate-like wing portions 84, thereby visually. In addition to providing a simple warning function, the liquid level can be increased at a lower speed, so that more accurate weighing can be realized.

  In the embodiment shown in FIGS. 9 and 10, the height (projection direction) dimension of the plate-like wing portions 78, 80, 82, 84 continuously decreases from the axial center toward the inner peripheral surface 32 of the side wall 16. Although it is configured to increase, it is not limited to this, and even if it is configured to decrease or increase (for example, stepped) in stages, it improves the visibility of the liquid level, and the liquid volume is almost accurate. Can be easily measured.

  FIG. 11 is a schematic diagram showing the configuration of the cap 11 according to the sixth embodiment of the present invention. The embodiment shown in FIG. 11 is characterized in that the lower surface (top surface) of the measuring convex portion is a convex surface as a measuring surface. 11A is a perspective view showing an external shape, FIG. 11B is a top view in an inverted state, and FIG. 11C is a cross-sectional perspective view taken along the line XX in FIG. In FIG. 11, illustration of a thread that is a fitting portion for externally fixing the cap 11 to the mouth portion of the container body is omitted.

  The cap 11 has a measuring convex portion 25. The convex portion for measurement 25 protrudes downward from the lower surface 31 of the top wall 15 substantially coaxially with the top wall 15 and has a cylindrical projection 86 having a top surface formed of a convex surface that is a substantially hemispherical surface, and the cylindrical projection 86. It consists of six cylindrical protrusions 86 arranged at symmetrical positions with respect to the center. The number of the columnar protrusions 86 is not particularly limited, and may be a single or arbitrary plural. In the present embodiment, the top surface formed of the convex surface of the cylindrical protrusion 86 is the measurement reference surface and the measurement surface. By providing a plurality of convex top surfaces, the line of sight of the liquid surface passing through the top surface is improved, and a predetermined amount of liquid can be measured almost accurately. In this embodiment, the columnar portion is formed in a columnar shape, but the shape of the columnar portion is not particularly limited as long as the top surface is a convex surface, and may be a polygonal column shape such as a triangular column or a quadrangular column.

  FIG. 12 (FIGS. 12A and 12B) is a schematic diagram showing a configuration of caps 12A and 12B, which are modifications of the cap 11 shown in FIG. The embodiment shown in FIG. 12 is characterized in that the lower surface (top surface) of the measuring convex portion is a convex surface or a concave surface as a measuring surface. 12A is a perspective view showing an external shape, FIG. 12B is a top view in an inverted state, and FIG. 12C is a cross-sectional perspective view of the YY cut surface of FIG.

  The cap 12A shown in FIG. 12A has a measuring convex portion 26A. The measuring convex portion 26A protrudes downward from the lower surface 31 of the top wall 15 so as to be substantially coaxial with the top wall 15, and has a cylindrical shape having a top surface 87a having a substantially hemispherical convex surface and a flat surface. It consists of a protrusion 87. The columnar protrusion 87 has a sufficiently large diameter compared to the columnar protrusion 86 shown in FIG. 11, and by making the tip portion a hemispherical convex surface, the area of the convex surface becomes very large. Visibility is significantly improved. In the present embodiment, the top surface 87a serves as a measurement reference surface, and the hemispherical convex surface of the tip portion serves as a measurement surface, so that a predetermined liquid amount can be measured almost accurately and easily.

  The cap 12B shown in FIG. 12B has a measuring convex portion 26B. The measuring convex portion 26 </ b> B is formed of a prismatic protrusion 88 that protrudes downward from the lower surface 31 of the top wall 15 substantially coaxially with the top wall 15, and whose top surface has a concave surface 89. In the present embodiment, the top surface of the prismatic protrusion 88 is a measurement reference surface, and the concave surface 89 is a measurement surface. Immediately before the liquid material enters the concave surface 89, the force that suppresses the liquid material from entering the concave surface 89 works instantaneously, and the concave surface 89 and the liquid surface can be clearly distinguished. It is easy to distinguish. In the present embodiment shown in FIG. 12, a cylindrical or quadrangular prism-shaped convex portion for measurement is used, but the present invention is not limited to this, and any polygonal column shape other than a quadrangular prism shape can be used.

  In the embodiment, for example, in order to further improve the visibility of the liquid level, in the cap 12A, the outer peripheral surface of the hemispherical convex surface at the tip of the cylindrical protrusion 87 is colored in a different color from the cap 12A, or the cap 12B. The inner wall surface of the concave surface 89 on the top surface of the prismatic projection 88 may be colored in a color different from that of the cap 12B.

  FIG. 13 is a schematic diagram showing the configuration of the cap 13 according to the seventh embodiment of the present invention. The embodiment shown in FIG. 13 is characterized by comprising a cylindrical projection 90 having a concave surface with an inclined inclined convex surface 27 for measurement. 13A is a perspective view showing an external shape, FIG. 13B is a top view in an inverted state, and FIG. 13C is a cross-sectional perspective view taken along the line XX in FIG. In FIG. 13, illustration of a screw thread that is a fitting portion for externally fixing the cap 11 to the mouth portion of the container body is omitted.

  The cap 13 shown in FIG. 13 has a measuring convex portion 27. The measuring convex portion 27 protrudes downward from the lower surface 31 of the top wall 15 substantially coaxially with the top wall 15, and the thickness dimension is toward the protruding direction (the direction from the lower surface 31 of the top wall 15 toward the top surface 92). It consists of a cylindrical projection 90 having an inner peripheral surface 91 that is a continuously concave and inclined concave surface and a top surface 92 that is an annular flat surface. In the cap 13, the annular top surface 92 serves as a measurement reference surface and a measurement surface, and the inner peripheral surface 91 functions as a measurement surface in an auxiliary manner. Since the top surface 92 is a flat surface having a width in the thickness direction and is formed in an annular shape, it is easy to visually recognize the coincidence between the top surface 92 and the liquid surface in three dimensions. Moreover, since the inner peripheral surface 91 is formed as an inclined concave surface, the boundary between the inner peripheral surface 91 and the liquid surface is very easy to visually recognize. Therefore, the cap 13 of the present embodiment can measure a predetermined amount of liquid almost accurately and easily. In addition, the cylindrical protrusion 90 is provided, but the present invention is not limited thereto, and the shape is a polygonal cylindrical body such as a triangular prism, a quadrangular prism, a hexagonal prism, the top surface is a flat surface, and the inside of the cylindrical body You may provide the cylindrical protrusion used as the concave surface where the surrounding surface inclined.

  Each of the caps 2A to 2D, 3A to 3C, 4A to 4B, 5, 6A to 6C, 7A to 7B, 8A to 8B, 9A to 9B, 10A to 10C, 11, 12A to 12B in FIGS. 13 is replaced with the measurement convex part 17, and the measurement convex parts 17A, 17B, 17C, 17D, 18A, 18B, 18C, 19A, 19B, 20, 20A, 20B, 20C, 21A, 21B, 22A, 22B, respectively. , 23A, 23B, 24A, 24B, 24C, 25, 26A, 26B, and 27, the cap 1 has the same configuration, and the cap 1 can have the same modification. Moreover, in each above-mentioned cap 1, 2A-2D, 3A-3C, 4A-4B, 5, 6A-6C, 7A-7B, 8A-8B, 9A-9B, 10A-10C, 11, 12A-12B, 13 In addition, an example in which a thread is provided as a fitting portion for fitting into the mouth portion of the container body is shown, but the present invention is not limited to this, and the fitting between the mouth portion of the container body and the cap that has been conventionally known Any combination means can be used.

  A container according to another embodiment of the present invention is a container body for filling a liquid material having a mouth part for pouring a liquid material into a cap, and is externally fitted and fixed to the mouth part via a fitting means. And the cap is the cap of the present invention described above.

  The liquid material to be filled in the container of the present invention is not particularly limited, and examples include mouthwash, liquid quasi-drug, liquid oral medicine, liquid detergent, liquid pesticide and the like. Liquid quasi-drugs, liquid medicines for internal use, etc. are preferred.

  The container of the present invention improves the line-of-sight of the liquid level by using the cap of the present invention having the above-mentioned predetermined measuring convex portion in an inverted state for measuring the liquid substance, and the predetermined liquid amount can be obtained almost accurately. In addition, since it can be easily measured, it may be made of an opaque material. By comprising an opaque material, a liquid material with insufficient light resistance can be stably stored over a long period of time without alteration or the like.

1, 2A, 2B, 2C, 2D, 3A, 3B, 3C, 4A, 4B, 5, 6A, 6B, 6C, 7A, 7B, 8A, 8B, 9A, 9B, 10A, 10B, 10C, 11, 12A, 12B, 13 Cap 15 Top wall 16 Side wall 17, 17A, 17B, 17C, 17D, 18A, 18B, 18C, 19A, 19B, 20, 20A, 20B, 20C, 21A, 21B, 22A, 22B, 23A, 23B, 24A 24B, 24C, 25, 26A, 26B, 27 Weighing convex portion 30 Outer peripheral surface 31 Lower surface 32 Inner peripheral surface 33 Recessed portion 34 Thread 35, 39, 41, 44, 46, 50, 52, 57, 59, 61, 64, 68, 71, 73, 75, 77, 78a, 79, 81, 83a, 83b, 85, 87a Top surface 36, 40, 42, 43, 45, 47, 51, 53, 54 58 Side surface 37, 55 Base portion 38 Protruding portion 56, 60 Square column portion 62 Spiral surface 63 Flat surface 65 Cavity 66 Columnar projection 67 Plate-like projection 70, 72 Arc-shaped unit convex portion 74, 76, 78, 80, 82, 84 Plate shape Wing part 86, 87 Cylindrical protrusion 88 Rectangular columnar protrusion 89 Concave surface 90 Cylindrical protrusion 91 Inner peripheral surface

Claims (12)

A cap that is detachably fitted and fixed to the mouth of the container body for filling the liquid material, and can be measured by pouring the liquid material in an inverted state by removing it from the container body,
The top wall,
A side wall provided to extend downward from the peripheral edge of the top wall, and provided with a fitting portion on the inner peripheral surface for fixing to the mouth of the container body;
A measuring surface that is provided so as to protrude downward from the lower surface of the top wall apart from the inner peripheral surface of the side wall, and a boundary between the liquid surface of the liquid material poured into the cap and visible from the opening of the cap A measuring cap comprising: a measuring convex portion having a measuring surface of which at least a part is a concave surface on the side surface.   The measuring cap according to claim 1, wherein a cross-sectional area of the measuring convex portion decreases continuously or stepwise in the protruding direction.   The measuring cap according to claim 2, wherein a shape of the measuring convex portion is a cone shape or a frustum shape.   The measuring cap according to claim 3, wherein the measuring convex portion has a frustum shape and has a protruding portion protruding downward from the lower surface thereof. A cap that is detachably fitted and fixed to the mouth of the container body for filling the liquid material, and can be measured by pouring the liquid material in an inverted state by removing it from the container body,
The top wall,
A side wall provided to extend downward from the peripheral edge of the top wall, and provided with a fitting portion on the inner peripheral surface for fixing to the mouth of the container body;
A measuring surface that is provided so as to protrude downward from the lower surface of the top wall apart from the inner peripheral surface of the side wall, and a boundary between the liquid surface of the liquid material poured into the cap and visible from the opening of the cap And a measuring convex part having a measuring surface made of a spiral surface that goes around with the protruding direction as an axis on the lower surface.   The measuring cap according to claim 5, wherein the measuring surface is a spiral surface that rotates at least once around the projecting direction of the measuring convex portion. A cap that is detachably fitted and fixed to the mouth of the container body for filling the liquid material, and can be measured by pouring the liquid material in an inverted state by removing it from the container body,
The top wall,
A side wall provided to extend downward from the peripheral edge of the top wall, and provided with a fitting portion on the inner peripheral surface for fixing to the mouth of the container body;
It is provided so as to protrude downward from the lower surface of the top wall apart from the inner peripheral surface of the side wall, and the boundary with the liquid level of the liquid material poured into the cap is visible from the opening of the cap A measuring cap comprising a measuring convex portion having a measuring surface, at least a part of which is a concave surface or a convex surface, on a lower surface as a measuring surface. A cap that is detachably fitted and fixed to the mouth of the container body for filling the liquid material, and can be measured by pouring the liquid material in an inverted state by removing it from the container body,
The top wall,
A side wall provided to extend downward from the peripheral edge of the top wall, and provided with a fitting portion on the inner peripheral surface for fixing to the mouth of the container body;
A boundary with the liquid surface of the liquid material poured into the cap, which is composed of a plurality of unit protrusions protruding downward from the lower surface of the top wall and spaced apart from the inner peripheral surface of the side wall, and spaced apart from each other. And a measuring convex portion having a measuring surface composed of the lower surfaces of the plurality of unit convex portions as a measuring surface visible from the opening of the cap. A cap that is detachably fitted and fixed to the mouth of the container body for filling the liquid material, and can be measured by pouring the liquid material in an inverted state by removing it from the container body,
The top wall,
A side wall provided to extend downward from the peripheral edge of the top wall, and provided with a fitting portion on the inner peripheral surface for fixing to the mouth of the container body;
Projected downward from the lower surface of the top wall spaced apart from the inner peripheral surface of the side wall, consisting of a plurality of plate-like wings arranged radially around the projecting direction, poured into the cap A measuring convex portion having a measuring surface composed of a radial lower surface in a plan view of the plurality of wings, the measuring surface being capable of visually observing the boundary with the liquid level of the liquid material from the opening of the cap. Cap for measuring.   The measuring cap according to claim 9, wherein the projecting dimension of the wing portion decreases or increases continuously or stepwise toward the inner peripheral surface of the side wall. A container body having a mouth and filled with a liquid material;
A measuring cap according to any one of claims 1 to 10, which is detachably fitted and fixed to the mouth portion through a fitting means.   The container according to claim 11, wherein the liquid is a mouthwash, a liquid quasi drug, or a liquid medicine for internal use.

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