JP6245747B2 - Cap and manufacturing method thereof - Google Patents

Description

The present invention relates to a cap and a manufacturing method thereof .

  For containers that contain contents such as liquids (liquid detergents, liquid bleaches, liquid softeners, solvents, etc.), powders (granular detergents, granular bleaches, granular seasonings, etc.) A cap that is detachably screwed by rotation is provided. The cap is required to prevent the fingers from slipping when the cap is attached to and detached from the container body. As such a cap, for example, a cap in which a knurled (knurl) made of a plurality of protrusions or grooves extending in a direction orthogonal to the circumferential direction of the cap is formed on the outer peripheral wall of the cap has been proposed (Patent Document 1). ). In addition, as a cap to which fingers are not slipped when attaching / detaching from the container body by rotation and design is imparted, for example, a cap having a polygonal outer shape when viewed from the canopy side has been proposed ( Patent Document 2).

JP 2001-354247 A JP 2009-007065 A

In order to further improve the design of the cap, it is conceivable that the outer peripheral wall of the cap is constituted by a number of regularly arranged polygonal surfaces, giving a sparkling feeling like a jewel cut.
However, when the outer peripheral wall of the cap is constituted by a number of regularly arranged polygonal surfaces, the following problems occur.

-Many polygonal surfaces need to be formed on the inner peripheral wall of the cavity of the injection mold used for manufacturing the cap, and it is difficult to manufacture the mold.
-An injection mold in which many polygonal surfaces are formed on the inner peripheral wall of the cavity has a complicated shape on the inner peripheral wall of the cavity, so that it is difficult to remove from the mold after the cap is molded.
-When the number of polygonal surfaces constituting the outer peripheral wall of the cap increases, the outer peripheral shape viewed from the canopy side becomes closer to a circle, so that fingers can easily slip when the cap is attached to and detached from the container body by rotation.

  The present invention provides a cap that is hard to slip when attaching and detaching from a container body, is excellent in design, and is easy to manufacture.

The cap of the present invention has a transparent tubular part and a canopy part that closes one open end of the tubular part ; the thick part of the tubular part is a single layer; the tubular part However, it has an outer peripheral wall composed of a plurality of polygonal faces and a line formed between the polygonal faces, and an inner peripheral wall composed of a plurality of polygonal faces and formed with a line between the polygonal faces. And a part or all of the filaments of the inner peripheral wall are formed at positions that can be seen through to the outer peripheral wall side so as to divide the polygonal surface of the outer peripheral wall.

As a 1st aspect of the cap of this invention, it has a transparent cylindrical part and a canopy part which closes one opening end of the said cylindrical part; The said cylindrical part is comprised by several polygonal surfaces. And an outer peripheral wall in which filaments are formed between the polygonal surfaces, and an inner peripheral wall composed of a plurality of polygonal surfaces and in which the filaments are formed between the polygonal surfaces; A part or all of the outer peripheral wall is formed at a position where it can be seen through the outer peripheral wall so as to divide the polygonal surface of the outer peripheral wall; the outer peripheral wall and the inner peripheral wall are alternately arranged in the circumferential direction of the cylindrical portion A first polygonal surface in which the circumferential width of the cylindrical portion becomes narrower as the distance from the canopy portion increases, and a second width in which the circumferential width of the cylindrical portion becomes wider as the distance from the canopy portion increases. The thing comprised by the polygonal surface of this is mentioned.

As a 2nd aspect of the cap of this invention, it has a transparent cylindrical part and a canopy part which closes one opening end of the said cylindrical part; The said cylindrical part is comprised by several polygonal surfaces. And an outer peripheral wall in which filaments are formed between the polygonal surfaces, and an inner peripheral wall composed of a plurality of polygonal surfaces and in which the filaments are formed between the polygonal surfaces; A part or all of the outer peripheral wall is formed at a position where it can be seen through to the outer peripheral wall side so as to divide the polygonal surface ; one of the outer peripheral wall and the inner peripheral wall; The first polygonal surface, which is alternately arranged, becomes narrower in the circumferential width of the cylindrical portion as it gets away from the canopy portion, and the circumferential width of the cylindrical portion becomes smaller as it gets away from the canopy portion. A second polygonal surface that is widened; the other is composed of a plurality of square surfaces It is.

  As a 3rd aspect of the cap of this invention, the said outer peripheral wall and the said inner peripheral wall are what is comprised by the some square surface.

It is preferable that the first polygonal surface and the second polygonal surface are triangular surfaces or trapezoidal surfaces.
It is preferable that at least a part of the polygonal surface is a concave surface.

The cylindrical portion has a reduced diameter portion whose outer diameter is reduced toward the canopy portion; the reduced diameter portion is composed of a plurality of polygonal surfaces, and a filament is formed between the polygonal surfaces. An outer peripheral wall formed and a plurality of polygonal surfaces, and an inner peripheral wall formed with filaments between the polygonal surfaces; a filament of the inner peripheral wall of the reduced diameter portion is an outer periphery of the reduced diameter portion It is preferable that the wall is formed at a position that can be seen through to the outer peripheral wall side of the reduced diameter portion so as to divide part or all of the polygonal surface of the wall.
The cap manufacturing method of the present invention has a transparent tubular portion and a canopy portion that closes one open end of the tubular portion; the tubular portion is composed of a plurality of polygonal surfaces, and a polygonal portion. An outer peripheral wall in which a line is formed between the surfaces, and an inner peripheral wall formed of a plurality of polygonal surfaces and in which a line is formed between the polygonal surfaces; a part of the line of the inner peripheral wall or The whole is a method of manufacturing a cap formed at a position that can be seen through to the outer peripheral wall side so as to divide the polygonal surface of the outer peripheral wall; and the outer periphery of the inner peripheral wall of the mold cavity and the core of the mold Polygonal surfaces are formed in the same way on each of the walls, the mold is closed with the cavity and the core relatively displaced in the circumferential direction, and the material is injected between the cavity and the core, and then molded. .

  When the cap of the present invention is attached to and detached from the container body, fingers are not easily slipped, the design is excellent, and the cap is easy to manufacture.

It is a perspective view which shows 1st Embodiment of the cap of this invention. It is a side view of the cap of FIG. It is a top view of the cap of FIG. It is IV-IV sectional drawing of FIG. It is VV sectional drawing of FIG. It is a perspective view which shows 2nd Embodiment of the cap of this invention. It is a side view of the cap of FIG. It is a perspective view which shows 3rd Embodiment of the cap of this invention. It is a side view of the cap of FIG.

The following definitions of terms apply throughout this specification and the claims.
“Transparent” means transmitting visible light. Therefore, in terms of transmitting visible light, “semi-transparent” is included in transparency.
“Polygonal surface” means a surface having three or more corners. The sides of the polygonal surface are not limited to straight lines, and may be curved. The polygonal surface may be a concave surface curved inward or a convex surface curved outward. The shapes, sizes, etc. of the plurality of polygonal surfaces arranged on the outer peripheral wall of the cylindrical portion may all be the same, or may be partially or entirely different.
“Line” means a ridge line or valley line that is formed between polygonal faces and can be recognized as a boundary between adjacent polygonal faces, or a convex or concave line.
“Ridge line” means a continuous line segment formed by the intersection of adjacent polygonal surfaces. Conversely, the “valley line” means a continuous line segment at the bottom of the valley formed by the intersection of adjacent polygonal surfaces. Here, “intersect” means that adjacent polygonal faces meet and share at least one side. The ridge line and the valley line are not limited to straight lines, and may be curved.
The “projection” means a protrusion that extends along the side of the polygon and protrudes outward from the polygon. On the contrary, the “concave line” means a groove extending along the side of the polygonal surface and recessed inward from the polygonal surface. The ridges and ridges are not limited to straight ones, and may be curved.
The “first polygonal surface” is a polygonal surface having a shape in which the circumferential width of the cylindrical portion becomes narrower as the distance from the canopy portion increases. When a plurality of first polygonal surfaces are arranged on the outer peripheral wall of the cylindrical part, the shape, size, etc. of the first polygonal surfaces may all be the same, or may be partially or completely different. Good.
The “second polygonal surface” is a polygonal surface having a shape in which the width in the circumferential direction of the cylindrical part increases as the distance from the canopy part increases. When a plurality of second polygonal surfaces are arranged on the outer peripheral wall of the cylindrical portion, the shape, size, etc. of the second polygonal surfaces may all be the same or may be partially or completely different. Good.
The “reduced diameter portion” is a portion connected to the canopy portion in the tubular portion, and the outer diameter is reduced toward the canopy portion, so that the outer periphery is smaller than the tubular portion main body other than the reduced diameter portion. It means a portion where the wall is inclined with respect to the axial direction of the cylindrical portion. The cylindrical part main body may be inclined with respect to the axial direction of the cylindrical part at a small inclination angle as compared with the reduced diameter part.
The “thick part” means a thickness part of the cylindrical part sandwiched between the outer peripheral wall and the inner peripheral wall in the cylindrical part.
“Opposite” means that two surfaces face each other in parallel at least in part.

(First embodiment)
1 is a perspective view showing a first embodiment of the cap of the present invention, FIG. 2 is a side view, and FIG. 3 is a top view. The broken lines in FIGS. 1 and 2 indicate that the filaments formed between the polygonal surfaces on the inner peripheral wall side are seen through the outer peripheral wall side. 4 is a cross-sectional view taken along the line IV-IV of FIG. 2, and FIG. 5 is a cross-sectional view taken along the line V-V of FIG.

The cap 1 is used as a measuring cap for a container (not shown).
The cap 1 is formed by integrally forming a cap body 10 and a screwing portion 40 extending outward from the outer wall surface of the cap body 10.
The outer diameter of the cap body 10 is not particularly limited, but is 2 to 5 cm, for example.
Although the outer diameter of the screwing part 40 is not specifically limited, For example, you may be 3-7 cm.

The cap body 10 includes a cylindrical upper cylindrical portion 12 (cylindrical portion), a polygonal canopy portion 14 that covers one open end of the upper cylindrical portion 12, and the other of the upper cylindrical portion 12. It is a covered cylinder having a cylindrical lower cylinder part 16 extending in the axial direction of the upper cylinder part 12 from the open end.
The upper tube portion 12 includes an upper tube portion main body 12 a and a reduced diameter portion 12 b connected to the canopy portion 14. The outer diameter wall of the reduced diameter portion 12b is inclined with respect to the axial direction of the upper cylinder portion 12 by reducing the outer diameter toward the canopy portion 14 as compared with the upper cylinder portion main body 12a.

  The outer peripheral wall of the upper tube portion main body 12a is arranged in the circumferential direction of the upper tube portion main body 12a alternately. The first triangular face whose width in the circumferential direction of the upper tube portion main body 12a becomes narrower as the distance from the canopy portion 14 increases. The polygonal surface 20 and the triangular second polygonal surface 22 whose width in the circumferential direction of the upper tube portion main body 12a increases as the distance from the canopy portion 14 increases. In addition, the outer peripheral wall of the upper cylindrical portion main body 12a is inclined so as to descend in the clockwise direction when viewed from the canopy portion 14 side, which is formed by the intersection of the adjacent first polygonal surface 20 and second polygonal surface 22. The first ridge line 24 and the second ridge line 26 inclined so as to descend in the counterclockwise direction when viewed from the canopy portion 14 side are formed.

  Similar to the outer peripheral wall, the inner peripheral wall of the upper cylindrical portion main body 12a is alternately arranged in the circumferential direction of the upper cylindrical portion main body 12a, and the width in the circumferential direction of the upper cylindrical portion main body 12a becomes narrower as the distance from the canopy portion 14 increases. The first polygonal surface 21 having a triangular surface and the second polygonal surface 23 having a triangular surface whose width in the circumferential direction of the upper tube main body 12a increases as the distance from the canopy portion 14 increases. Further, the inner peripheral wall of the upper cylindrical portion main body 12a is inclined so as to descend in the clockwise direction when viewed from the canopy portion 14 side, which is formed by the intersection of the first polygonal surface 21 and the second polygonal surface 23 adjacent to each other. The first valley line 25 and the second valley line 27 inclined so as to descend in the counterclockwise direction when viewed from the canopy part 14 side are formed.

  The first polygonal surface 20 of the outer peripheral wall and the first polygonal surface 21 of the inner peripheral wall of the upper tube portion main body 12a have substantially the same shape and substantially the same size. Moreover, the 2nd polygonal surface 22 of the outer peripheral wall of the upper cylinder part main body 12a and the 2nd polygonal surface 23 of an internal peripheral wall are substantially the same shape and the substantially same size.

The first polygonal surface 20 on the outer peripheral wall of the upper tube portion main body 12a and the second polygonal surface 23 on the inner peripheral wall face each other with the thick portion 12c of the upper tube portion main body 12a interposed therebetween. Further, the second polygonal surface 22 of the outer peripheral wall of the upper tube portion main body 12a and the first polygonal surface 21 of the inner peripheral wall face each other across the thick portion 12c of the upper tube portion main body 12a.
As a result, the first valley line 25 and the second valley line 27 on the inner peripheral wall are separated from the first polygonal surface 20 and the second polygonal surface 22 on the outer peripheral wall by three regions (one rhombus surface and 2 It is formed at a position that can be seen through to the outer peripheral wall side so as to be divided into two triangular surfaces.

  The first polygonal surface 20 is an intermediate line (not shown) that bisects the first polygonal surface 20 from the first ridgeline 24 and the second ridgeline 26 in a direction perpendicular to the circumferential direction of the upper tube main body 12a. The concave surface is made deeper as it goes to (see FIG. 4).

  The outer peripheral wall of the reduced diameter portion 12b is a triangular first polygonal surface that is alternately arranged in the circumferential direction of the reduced diameter portion 12b, and whose width in the circumferential direction of the reduced diameter portion 12b becomes narrower as the distance from the canopy portion 14 increases. 30 and a second polygonal surface 32 of a triangular surface whose width in the circumferential direction of the reduced diameter portion 12b increases as the distance from the canopy portion 14 increases. Further, the outer peripheral wall of the reduced diameter portion 12b is inclined so as to descend in the clockwise direction when viewed from the canopy portion 14 side, which is formed by the intersection of the adjacent first polygon surface 30 and second polygon surface 32. A first ridge line 34 and a second ridge line 36 that is inclined so as to descend in the counterclockwise direction when viewed from the canopy portion 14 side are formed.

  Similar to the outer peripheral wall, the inner peripheral wall of the reduced diameter portion 12b is alternately arranged in the circumferential direction of the reduced diameter portion 12b, and the triangular surface where the width in the circumferential direction of the reduced diameter portion 12b becomes narrower as the distance from the canopy portion 14 increases. The first polygonal surface 31 and a trapezoidal second polygonal surface 33 whose width in the circumferential direction of the reduced diameter portion 12b increases as the distance from the canopy portion 14 increases. Further, the inner peripheral wall of the reduced diameter portion 12b is inclined so as to descend in the clockwise direction when viewed from the canopy portion 14 side, which is formed by the intersection of the adjacent first polygonal surface 31 and second polygonal surface 33. A first valley line 35 and a second valley line 37 inclined so as to fall in the counterclockwise direction when viewed from the canopy portion 14 side are formed.

  The first polygonal surface 30 on the outer peripheral wall of the reduced diameter portion 12b and the first polygonal surface 31 on the inner peripheral wall have substantially the same shape and substantially the same size. In addition, the second polygonal surface 32 of the outer peripheral wall of the reduced diameter portion 12b and the second polygonal surface 33 of the inner peripheral wall have substantially the same size although the shapes are slightly different.

The first polygonal surface 30 on the outer peripheral wall of the reduced diameter portion 12b and the second polygonal surface 33 on the inner peripheral wall face each other with the thick portion 12c of the reduced diameter portion 12b interposed therebetween. Further, the second polygonal surface 32 of the outer peripheral wall of the reduced diameter portion 12b and the first polygonal surface 31 of the inner peripheral wall face each other with the thick portion 12c of the reduced diameter portion 12b interposed therebetween.
Thereby, the first valley line 35 and the second valley line 37 of the inner peripheral wall are divided into three regions (one rhombus surface or pentagon), respectively. It is formed in a position that can be seen through to the outer peripheral wall side so as to be divided into a plane and two triangular planes).

  The total number of the first polygon surface 20 and the second polygon surface 22, the total number of the first polygon surface 21 and the second polygon surface 23, the first polygon surface 30 and the second polygon surface The total number of 32 and the total number of the first polygonal surface 31 and the second polygonal surface 33 are each preferably 6-36, more preferably 8-24, and even more preferably 9-13. If the total number is 6 or more, the upper cylinder portion 12 is cylindrical. If the total number is 13 or less, the inner angle formed by the first polygonal surface 20 and the second polygonal surface 22 adjacent to each other on the outer peripheral wall does not become too large. Therefore, the fingers are easily hooked on the first ridge line 24 and the second ridge line 26, and the fingers are difficult to slip.

  The upper cylinder part 12 and the lower cylinder part 16 are formed with a plurality of scales (not shown) indicating the amount of contents stored in the cap body 10. Each scale is composed of a measurement line indicating a distance from the canopy portion 14 toward the lower tube portion 16, a number, and a unit indicating a capacity. Examples of the scale include prints formed by laser printing and printing (silk screen printing, tampo printing, etc.), or ridges or ridges.

The threaded portion 40 includes a step portion 42 extending outward from the other opening end of the upper tube portion 12, and a cap body 10 extending in the axial direction of the upper tube portion 12 from the periphery of the step portion 42. And a coaxial outer tube portion 44.
On the inner peripheral wall of the outer tube portion 44, a screw portion 46 that is screwed with the screw portion of the container body is formed.
On the outer peripheral wall of the outer cylindrical portion 44, a plurality of ridges extending in a direction orthogonal to the circumferential direction of the outer cylindrical portion 44 are formed side by side in the circumferential direction. A smooth portion 52 in which no stripe is formed is formed.

It is preferable that at least the upper cylinder portion 12 is made of a transparent material and the entire cap 1 is made of a transparent material from the viewpoint that the contents poured into the cap are clearly visually recognized.
Examples of the material of the cap 1 include polyolefin (polyethylene, polypropylene, etc.), polyester (polyethylene terephthalate, etc.), polystyrene, and the like.

  Like the conventional measuring cap, the cap 1 grips the cap main body 10 by abutting fingers on the outer peripheral wall of the upper cylindrical portion 12, and rotates about the axis so that the cap 1 is engaged with the screw portion 40. It is screwed or unscrewed into the mouth of the container body (not shown). At this time, the user's fingers are sufficiently restricted by the first ridge line 24 or the second ridge line 26 to move in the vertical direction and in the rotational direction. It is hard to slip. Therefore, the cap 1 can be easily screwed or unscrewed to the container body.

  When weighing the contents, the cap 1 is unscrewed from the container body, the contents are poured out from the container body, and the poured out contents are poured into the cap body 10 from the open end of the lower cylinder portion 16. At this time, the scale and the contents can be collated by gripping the screwed portion 40 so as not to block the upper cylinder portion 12 on which the scale is formed. Then, the user can prevent the finger from slipping by bringing the finger into contact with the knurled portion 50, and can measure the contents without dropping the cap 1.

(Production method)
The cap 1 is formed, for example, on the inner peripheral wall of the mold cavity and the outer peripheral wall of the mold core in the same manner as the first and second polygonal surfaces alternately arranged in the circumferential direction. Then, the mold can be closed with the cavity and the core relatively displaced in the circumferential direction, and a material can be injected between the cavity and the core and molded.

(Mechanism of action)
In the cap 1 described above, the upper tube main body 12a is composed of a plurality of triangular surfaces, and the outer peripheral wall in which the first ridge line 24 and the second ridge line 26 are formed between the triangular surfaces, And an inner peripheral wall formed of a plurality of triangular planes and having a first valley line 25 and a second valley line 27 formed between the triangular planes; Two trough lines 27 are formed at positions that can be seen through to the outer peripheral wall side so as to divide the triangular surface of the outer peripheral wall into three regions (one rhombus surface and two triangular surfaces), respectively. Therefore, it is possible to make it appear that there are many polygonal surfaces without increasing the number of triangular surfaces of the outer peripheral wall. Therefore, it is possible to impart a design property such as a gemstone cut to the upper tube portion 12 while maintaining the difficulty of finger sliding and ease of manufacture. In addition, in the polygonal surface of the outer peripheral wall that appears to be divided into two regions at one valley line of the inner peripheral wall, there is no difference in light reflection between the two regions on the outer peripheral wall side. On the side, since the incidence of light differs between two regions (that is, two adjacent polygonal surfaces), there is a difference in the light emitted from the polygonal surface of the outer peripheral wall. Therefore, it can give a sparkling feeling like a jewel cut.

  Further, on the outer peripheral wall of the upper tube portion main body 12a, a first ridge line 24 inclined so as to descend in a clockwise direction when viewed from the canopy portion 14 side between the triangular surfaces, and viewed from the canopy portion 14 side. Since the second ridge line 26 inclined so as to descend in the counterclockwise direction is formed, the first finger moves in the up and down direction and the movement in the turning direction when detaching from the container body by turning. The ridge line 24 or the second ridge line 26 is sufficiently restricted. Therefore, it is difficult for the fingers to slip in the vertical direction and the rotation direction.

  Moreover, since the 1st polygonal surface 20 is made into the concave surface, a finger becomes easy to be latched by a concave surface and it can suppress a finger | toe's slip more reliably. Moreover, since light is reflected and emitted in a complicated manner by the concave surface, it is possible to further impart design properties such as jewel cutting to the upper tube portion 12.

  Further, the reduced diameter portion 12b is composed of a plurality of triangular surfaces, and is composed of an outer peripheral wall in which a first ridge line 34 and a second ridge line 36 are formed between the triangular surfaces, and a plurality of triangular surfaces. And it has the inner peripheral wall in which the 1st trough line 35 and the 2nd trough line 37 were formed between triangular surfaces; the 1st trough line 35 and 2nd trough line 37 of an inner peripheral wall are outer peripheral walls. The first polygonal surface 30 and the second polygonal surface 32 are each formed in a position that can be seen through to the outer peripheral wall side so as to be divided into three regions (one rhombus surface or pentagonal surface and two triangular surfaces). Has been. Therefore, by the same action mechanism as that of the upper tube portion main body 12a, it is possible to further improve design such as a gemstone cut in the upper tube portion 12 while suppressing slipping of fingers.

(Second Embodiment)
FIG. 6 is a perspective view showing a second embodiment of the cap of the present invention, and FIG. 7 is a side view. The broken lines in FIGS. 6 and 7 indicate that the filaments formed between the polygonal surfaces on the inner peripheral wall side are seen through the outer peripheral wall side.
In the second embodiment, the same components as those in the first embodiment are denoted by the same reference numerals and description thereof is omitted.

The cap 2 is used as a measuring cap for a container (not shown).
The cap 2 is formed by integrally molding a cap body 10 and a screwing portion 40 extending outward from the outer wall surface of the cap body 10.

  The outer peripheral wall of the upper tube portion main body 12a has a plurality of polygonal surfaces 60 that are rectangular surfaces in which the sides in the circumferential direction of the upper tube portion main body 12a are shorter than the sides orthogonal to the circumferential direction in the circumferential direction of the upper tube portion main body 12a. It is arranged and configured. Further, a ridge line 62 extending in a direction orthogonal to the circumferential direction of the upper tube portion main body 12a is formed on the outer peripheral wall of the upper tube portion main body 12a.

  The inner peripheral wall of the upper tube portion main body 12a is arranged in the circumferential direction of the upper tube portion main body 12a alternately. The first triangular face whose width in the circumferential direction of the upper tube portion main body 12a becomes narrower as the distance from the canopy portion 14 increases. The polygonal surface 21 and the triangular second polygonal surface 23 in which the width in the circumferential direction of the upper tube portion main body 12a increases as the distance from the canopy portion 14 increases. Further, the inner peripheral wall of the upper cylindrical portion main body 12a is inclined so as to descend in the clockwise direction when viewed from the canopy portion 14 side, which is formed by the intersection of the first polygonal surface 21 and the second polygonal surface 23 adjacent to each other. The first valley line 25 and the second valley line 27 inclined so as to descend in the counterclockwise direction when viewed from the canopy part 14 side are formed.

The polygonal surface 60 of the outer peripheral wall of the upper tube portion main body 12a and the first polygonal surface 21 of the inner peripheral wall face each other with the thick portion 12c of the upper tube portion main body 12a interposed therebetween. Further, the second polygonal surface 23 of the inner peripheral wall of the upper tube portion main body 12a is disposed at a position that is divided into two equal parts by the ridgeline 62 of the outer peripheral wall.
Thereby, the first valley line 25 and the second valley line 27 of the inner peripheral wall are seen through the outer peripheral wall side so as to divide the polygonal surface 60 of the outer peripheral wall into three regions (three triangular surfaces). Will be formed at the position.

  The outer peripheral wall of the reduced diameter portion 12b has a plurality of polygonal surfaces 70, which are rectangular surfaces in which the sides in the circumferential direction of the reduced diameter portion 12b are longer than the sides orthogonal to the circumferential direction, and are arranged in the circumferential direction of the reduced diameter portion 12b. It is configured. In addition, a ridge line 72 extending in a direction orthogonal to the circumferential direction of the reduced diameter portion 12b is formed on the outer peripheral wall of the reduced diameter portion 12b.

  The inner peripheral walls of the reduced diameter portion 12b are alternately arranged in the circumferential direction of the reduced diameter portion 12b. The first polygonal surface of the triangular surface whose width in the circumferential direction of the reduced diameter portion 12b decreases as the distance from the canopy portion 14 increases. 31 and a second polygonal surface 33 having a trapezoidal surface in which the width in the circumferential direction of the reduced diameter portion 12b increases as the distance from the canopy portion 14 increases. Further, the inner peripheral wall of the reduced diameter portion 12b is inclined so as to descend in the clockwise direction when viewed from the canopy portion 14 side, which is formed by the intersection of the adjacent first polygonal surface 31 and second polygonal surface 33. A first valley line 35 and a second valley line 37 inclined so as to fall in the counterclockwise direction when viewed from the canopy portion 14 side are formed.

The polygonal surface 70 of the outer peripheral wall of the reduced diameter portion 12b and the second polygonal surface 33 of the inner peripheral wall face each other with the thick portion 12c of the reduced diameter portion 12b interposed therebetween. In addition, the first polygonal surface 31 of the inner peripheral wall of the reduced diameter portion 12b is arranged at a position that is bisected by the ridgeline 72 of the outer peripheral wall.
Thereby, the outer peripheral wall is such that the first valley line 35 and the second valley line 37 of the inner peripheral wall divide the polygonal surface 70 of the outer peripheral wall into three regions (one trapezoidal surface and two triangular surfaces). It is formed at a position that can be seen through to the side.

  The number of polygonal surfaces 60 and the number of polygonal surfaces 70 are each preferably 3 to 36, more preferably 8 to 24, and even more preferably 9 to 13. If the total number is 3 or more, the upper cylinder portion 12 is cylindrical. If the total number is 13 or less, the inner angle formed by two adjacent polygonal faces on the outer peripheral wall does not become too large. Therefore, the fingers are easily hooked on the ridge line, and the fingers are not easily slipped.

  The total number of the first polygon surface 21 and the second polygon surface 23 and the total number of the first polygon surface 31 and the second polygon surface 33 are each preferably 6 to 36, and 8 to 24, respectively. Is more preferable, and 9 to 13 is more preferable. If the total number is 6 or more, the upper cylinder portion 12 is cylindrical.

  Like the conventional measuring cap, the cap 2 grips the cap body 10 by abutting fingers on the outer peripheral wall of the upper cylindrical portion 12, and rotates about the axis so that the cap 2 is engaged with the screw 40. It is screwed or unscrewed into the mouth of the container body (not shown). At this time, since the movement of the user's finger in the rotation direction is sufficiently restricted by the ridgeline 62, the finger is difficult to slip in the rotation direction. Therefore, the cap 2 can be easily screwed or unscrewed from the container body.

(Production method)
The cap 2 forms, for example, a plurality of square surfaces arranged in the circumferential direction on the inner peripheral wall of the mold cavity, and the first polygonal surface and the first polygonal surface alternately arranged in the circumferential direction on the outer peripheral wall of the core of the mold. 2 polygonal surfaces, the mold is closed, the material is injected between the cavity and the core and molded.

(Mechanism of action)
In the cap 2 described above, the upper tube main body 12a is composed of a plurality of polygonal surfaces 60 (square surfaces), and an outer peripheral wall in which a ridge line 62 is formed between the polygonal surfaces 60, and a plurality of triangles. An inner peripheral wall having a first valley line 25 and a second valley line 27 formed between the triangular faces; and the first valley line 25 and the second valley line of the inner peripheral wall. 27 is formed at a position that can be seen through to the outer peripheral wall side so as to divide the polygonal surface 60 of the outer peripheral wall into three regions (three triangular surfaces). Therefore, it is possible to make it appear that many polygonal surfaces exist without increasing the number of polygonal surfaces 60 on the outer peripheral wall. Therefore, it is possible to impart a design property such as a gemstone cut to the upper tube portion 12 while maintaining the difficulty of finger sliding and ease of manufacture. In addition, in the polygonal surface of the outer peripheral wall that appears to be divided into two regions at one valley line of the inner peripheral wall, there is no difference in light reflection between the two regions on the outer peripheral wall side. On the side, since the incidence of light differs between two regions (that is, two adjacent polygonal surfaces), there is a difference in the light emitted from the polygonal surface of the outer peripheral wall. Therefore, it can give a sparkling feeling like a jewel cut.

  In addition, since the ridge line 62 is formed between the polygonal surfaces 60 on the outer peripheral wall of the upper tube portion main body 12a, the movement of the finger in the rotation direction is the ridge line 62 when detaching from the container main body by rotation. Fully regulated. Therefore, it is difficult for fingers to slip in the rotation direction.

  Further, the reduced diameter portion 12b is composed of a plurality of polygonal surfaces 70 (square surfaces) and an outer peripheral wall in which a ridge line 72 is formed between the polygonal surfaces 70, and a plurality of triangular surfaces, and the triangular surfaces are It has an inner peripheral wall between which a first valley line 35 and a second valley line 37 are formed; the first valley line 35 and the second valley line 37 of the inner peripheral wall are polygonal surfaces 70 of the outer peripheral wall. Are divided into three regions (one trapezoidal surface and two triangular surfaces), and are formed at positions that can be seen through to the outer peripheral wall side. Therefore, by the same action mechanism as that of the upper tube portion main body 12a, it is possible to further improve design such as a gemstone cut in the upper tube portion 12 while suppressing slipping of fingers.

(Third embodiment)
FIG. 8 is a perspective view showing a third embodiment of the cap of the present invention, and FIG. 9 is a side view. The broken lines in FIGS. 8 and 9 indicate that the filaments formed between the polygonal surfaces on the inner peripheral wall side are seen through the outer peripheral wall side.
In the third embodiment, the same components as those in the first embodiment and the second embodiment are denoted by the same reference numerals and description thereof is omitted.

The cap 3 is used as a measuring cap for a container (not shown).
The cap 3 is formed by integrally forming a cap body 10 and a screwing portion 40 extending outward from the outer wall surface of the cap body 10.

  The outer peripheral wall of the upper tube portion main body 12a has a plurality of polygonal surfaces 60 that are rectangular surfaces in which the sides in the circumferential direction of the upper tube portion main body 12a are shorter than the sides orthogonal to the circumferential direction in the circumferential direction of the upper tube portion main body 12a. It is arranged and configured. Further, a ridge line 62 extending in a direction orthogonal to the circumferential direction of the upper tube portion main body 12a is formed on the outer peripheral wall of the upper tube portion main body 12a.

  The inner peripheral wall of the upper tube portion main body 12a has a plurality of polygonal surfaces 61 in the circumferential direction of the upper tube portion main body 12a. It is arranged and configured. In addition, a valley line 63 is formed on the inner peripheral wall of the upper tube portion main body 12a. The valley line 63 extends in a direction perpendicular to the circumferential direction of the upper tube portion main body 12a and is formed by the intersection of two adjacent polygonal surfaces 61.

The polygonal surface 61 of the inner peripheral wall of the upper tube main body 12a is arranged at a position that is divided into two equal parts by the ridgeline 62 of the outer peripheral wall.
Thereby, the valley line 63 of the inner peripheral wall is formed at a position that can be seen through to the outer peripheral wall side so as to divide the polygonal surface 60 of the outer peripheral wall into two regions (two square surfaces).

  The outer peripheral wall of the reduced diameter portion 12b has a plurality of polygonal surfaces 70, which are rectangular surfaces in which the sides in the circumferential direction of the reduced diameter portion 12b are longer than the sides orthogonal to the circumferential direction, and are arranged in the circumferential direction of the reduced diameter portion 12b. It is configured. In addition, a ridge line 72 extending in a direction orthogonal to the circumferential direction of the reduced diameter portion 12b is formed on the outer peripheral wall of the reduced diameter portion 12b.

  The inner peripheral wall of the reduced diameter portion 12b has a plurality of polygonal surfaces 71, which are rectangular surfaces in which the sides in the circumferential direction of the reduced diameter portion 12b are longer than the sides orthogonal to the circumferential direction, and are arranged in the circumferential direction of the reduced diameter portion 12b. It is configured. In addition, a valley line 73 extending in a direction orthogonal to the circumferential direction of the reduced diameter portion 12b is formed on the inner peripheral wall of the reduced diameter portion 12b.

The polygonal surface 71 of the inner peripheral wall of the reduced diameter portion 12b is disposed at a position that is bisected by the ridgeline 72 of the outer peripheral wall.
Thereby, the valley line 73 of the inner peripheral wall is formed at a position that can be seen through to the outer peripheral wall side so as to divide the polygonal surface 70 of the outer peripheral wall into two regions (two square surfaces).

  The number of polygonal surfaces 60, the number of polygonal surfaces 61, the number of polygonal surfaces 70, and the number of polygonal surfaces 71 are each preferably 3-36, more preferably 8-24, and even more preferably 9-13. If the total number is 3 or more, the upper cylinder portion 12 is cylindrical. If the total number is 13 or less, the inner angle formed by two adjacent polygonal faces on the outer peripheral wall does not become too large. Therefore, the fingers are easily hooked on the ridge line, and the fingers are not easily slipped.

  Similar to the conventional measuring cap, the cap 3 grips the cap body 10 by abutting fingers on the outer peripheral wall of the upper cylindrical portion 12, and rotates about the axis so that the cap 3 is engaged with the screw portion 40. It is screwed or unscrewed into the mouth of the container body (not shown). At this time, since the movement of the user's finger in the rotation direction is sufficiently restricted by the ridgeline 62, the finger is difficult to slip in the rotation direction. Therefore, the cap 3 can be easily screwed or unscrewed to the container body.

(Production method)
The cap 3 is formed, for example, in the same manner in each of the inner peripheral wall of the mold cavity and the outer peripheral wall of the mold core in the circumferential direction, and the cavity and the core are relatively positioned in the circumferential direction. It can be manufactured by closing the mold in a shifted state, injecting a material between the cavity and the core, and molding.

(Mechanism of action)
In the cap 3 described above, the upper cylinder main body 12a is composed of a plurality of polygonal surfaces 60 (square surfaces), and an outer peripheral wall in which a ridge line 62 is formed between the polygonal surfaces 60, and a polygonal surface 61. (A square surface) and has an inner peripheral wall in which a valley line 63 is formed between the polygonal surfaces 61; the valley line 63 on the inner peripheral wall has two regions (2 It is formed at a position that can be seen through to the outer peripheral wall side so as to be divided into two square surfaces. Therefore, it is possible to make it appear that many polygonal surfaces exist without increasing the number of polygonal surfaces 60 on the outer peripheral wall. Therefore, it is possible to impart a design property such as a gemstone cut to the upper tube portion 12 while maintaining the difficulty of finger sliding and ease of manufacture. In addition, in the polygonal surface of the outer peripheral wall that appears to be divided into two regions at one valley line of the inner peripheral wall, there is no difference in light reflection between the two regions on the outer peripheral wall side. On the side, since the incidence of light differs between two regions (that is, two adjacent polygonal surfaces), there is a difference in the light emitted from the polygonal surface of the outer peripheral wall. Therefore, it can give a sparkling feeling like a jewel cut.

  In addition, since the ridge line 62 is formed between the polygonal surfaces 60 on the outer peripheral wall of the upper tube portion main body 12a, the movement of the finger in the rotation direction is the ridge line 62 when detaching from the container main body by rotation. Fully regulated. Therefore, it is difficult for fingers to slip in the rotation direction.

  Further, the reduced diameter portion 12b is configured by a plurality of polygonal surfaces 70 (square surfaces) and an outer peripheral wall in which a ridge line 72 is formed between the polygonal surfaces 70, and a plurality of polygonal surfaces 71 (square surfaces). And having an inner peripheral wall in which a valley line 73 is formed between the polygonal surfaces 71; the valley line 73 of the inner peripheral wall divides the polygonal surface 70 of the outer peripheral wall into two regions (two square surfaces), respectively. Thus, it is formed at a position that can be seen through to the outer peripheral wall side. Therefore, by the same action mechanism as that of the upper tube portion main body 12a, it is possible to further improve design such as a gemstone cut in the upper tube portion 12 while suppressing slipping of fingers.

(Other embodiments)
The cap of the present invention has a transparent tubular portion and a canopy portion that closes one open end of the tubular portion, and the tubular portion has an outer peripheral wall and an inner peripheral wall configured by a plurality of polygonal surfaces. Any part or all of the filaments of the inner peripheral wall may be formed at a position where the outer peripheral wall can be seen through so as to divide the polygonal surface of the outer peripheral wall. It is not limited to.

For example, the cap of the present invention is not limited to a double cylinder structure having a cap body and a screwing portion as shown in the illustrated example, but a single screw portion provided on the inner peripheral wall near the opening end of the cylindrical portion. It may have a cylindrical structure. In the case of a double cylinder structure, the knurled part may not be formed on the outer peripheral wall of the outer cylinder part.
Further, the threaded portion of the screwing portion 40 is not limited to the inner peripheral wall of the outer cylindrical portion 44 of the screwing portion 40 as shown in the illustrated example, but is the outer peripheral wall of the outer cylindrical portion 44 of the screwing portion 40. May be.
Moreover, the cap of this invention should just be attached to the opening | mouth part of a container main body so that attachment or detachment is possible, and it is not limited to a measurement cap.
Moreover, the cap of this invention is not limited to what has a reduced diameter part, It is not necessary to have a reduced diameter part.
Further, the canopy portion is not limited to a planar shape as in the illustrated example, and may be a hemispherical shape that gradually decreases in the axial direction.

Further, the polygonal surface is not limited to a triangular surface, a trapezoidal surface, and a quadrangular surface as in the illustrated example, and may be a rhombus surface, a parallelogram surface, or the like. However, a triangular surface or a trapezoidal surface is preferable from the viewpoint of difficulty in sliding fingers, formability, and design.
Moreover, in the example of illustration, although the 1st polygonal surface of the outer peripheral wall of an upper cylinder part main body was made into the concave surface, the 2nd polygonal surface may be made into a concave surface, and both may be made into a concave surface. Further, one or both of the first polygonal surface and the second polygonal surface of the outer peripheral wall of the reduced diameter portion may be concave. Moreover, the concave surface should just be a surface dented inward, and the shape is not specifically limited.

  Moreover, the shape, size, etc. of the plurality of polygonal surfaces may all be the same, or may be partially or entirely different. However, as shown in FIG. 1, the same shape, the same size as the first polygonal surface of the same size, and the second polygonal surface of the same size are preferably formed alternately in the circumferential direction of the cylindrical portion. .

Moreover, the filament formed between the polygonal surfaces of an outer peripheral wall is not limited to the ridgeline of the example of illustration, A convex strip may be sufficient and a concave strip may be sufficient.
Moreover, the filament formed between the polygonal surfaces of an inner peripheral wall is not limited to the trough line of the example of illustration, A convex strip may be sufficient and a concave strip may be sufficient.

  The cap of the present invention is a container for storing contents such as liquid substances (liquid detergents, liquid bleaches, liquid softeners, solvents, etc.), granular substances (granular detergents, granular bleaches, granular seasonings, etc.) It is useful as a cap that is detachably screwed into the mouth of the container body.

DESCRIPTION OF SYMBOLS 1 Cap 2 Cap 3 Cap 10 Cap main body 12 Upper cylinder part (cylindrical part)
12a Upper cylinder part body 12b Reduced diameter part 12c Thick part 14 Canopy part 16 Lower cylinder part 20 First polygonal surface 21 First polygonal surface 22 Second polygonal surface 23 Second polygonal surface 24 First ridge line 25 1st valley line 26 2nd ridge line 27 2nd valley line 30 1st polygon surface 31 1st polygon surface 32 2nd polygon surface 33 2nd polygon surface 34 1st ridge line 35 1st valley Line 36 Second ridge line 37 Second valley line 40 Threaded part 42 Step part 44 Outer cylinder part 46 Screw part 50 Knurled part 52 Smooth part 60 Polygonal surface 61 Polygonal surface 62 Ridge line 63 Valley line 70 Polygonal surface 71 Polygonal surface 72 Ridge line 73 Valley line

Claims (8)

A transparent tubular portion, and a canopy portion that closes one open end of the tubular portion;
The thick part of the cylindrical part is a single layer,
The cylindrical part is composed of a plurality of polygonal faces, and an outer peripheral wall in which filaments are formed between the polygonal faces, and a plurality of polygonal faces, and the filaments are formed between the polygonal faces. Has an inner wall,
The cap formed in the position which a part or all of the filament of the said inner peripheral wall can see through to the said outer peripheral wall side so that the polygonal surface of the said outer peripheral wall may be divided | segmented. A transparent tubular portion, and a canopy portion that closes one open end of the tubular portion;
The cylindrical part is composed of a plurality of polygonal faces, and an outer peripheral wall in which filaments are formed between the polygonal faces, and a plurality of polygonal faces, and the filaments are formed between the polygonal faces. Has an inner wall,
A part or all of the filament of the inner peripheral wall is formed at a position where the outer peripheral wall can be seen through so as to divide the polygonal surface of the outer peripheral wall,
The outer peripheral wall and the inner peripheral wall are alternately arranged in the circumferential direction of the cylindrical portion, and the first polygonal surface in which the circumferential width of the cylindrical portion becomes narrower as the distance from the canopy portion increases, width in the circumferential direction of the tubular portion with distance from the canopy portion is constituted by the second polygonal surface widens, caps. A transparent tubular portion, and a canopy portion that closes one open end of the tubular portion;
The cylindrical part is composed of a plurality of polygonal faces, and an outer peripheral wall in which filaments are formed between the polygonal faces, and a plurality of polygonal faces, and the filaments are formed between the polygonal faces. Has an inner wall,
A part or all of the filament of the inner peripheral wall is formed at a position where the outer peripheral wall can be seen through so as to divide the polygonal surface of the outer peripheral wall,
Of the outer peripheral wall and the inner peripheral wall,
One is arranged alternately in the circumferential direction of the cylindrical portion, the first polygonal surface where the circumferential width of the cylindrical portion becomes narrower as the distance from the canopy portion decreases, and as the distance from the canopy portion increases It is composed of a second polygonal surface in which the circumferential width of the cylindrical part is widened,
The other is composed of a plurality of square faces,
Caps.   The cap according to claim 1, wherein the outer peripheral wall and the inner peripheral wall are configured by a plurality of square surfaces.   The cap according to claim 2 or 3, wherein the first polygonal surface and the second polygonal surface are triangular surfaces or trapezoidal surfaces.   The cap according to any one of claims 1 to 5, wherein at least a part of the polygonal surface is a concave surface. The cylindrical portion has a reduced diameter portion whose outer diameter is reduced toward the canopy portion,
The diameter-reduced portion is composed of a plurality of polygonal surfaces, and an outer peripheral wall in which filaments are formed between the polygonal surfaces, and a plurality of polygonal surfaces, and the filaments are formed between the polygonal surfaces. Has an inner wall,
The filaments on the inner peripheral wall of the reduced diameter portion are formed at positions that can be seen through to the outer peripheral wall side of the reduced diameter portion so as to divide part or all of the polygonal surface of the outer peripheral wall of the reduced diameter portion. The cap according to any one of claims 1 to 6. A transparent tubular portion, and a canopy portion that closes one open end of the tubular portion;
The cylindrical part is composed of a plurality of polygonal faces, and an outer peripheral wall in which filaments are formed between the polygonal faces, and a plurality of polygonal faces, and the filaments are formed between the polygonal faces. Has an inner wall,
It is a method of manufacturing a cap formed at a position where part or all of the filaments of the inner peripheral wall can be seen through to the outer peripheral wall side so as to divide the polygonal surface of the outer peripheral wall,
Polygonal surfaces are formed in the same manner on the inner peripheral wall of the mold cavity and the outer peripheral wall of the mold core, and the mold is closed with the cavity and the core relatively displaced in the circumferential direction. A method for manufacturing a cap, in which a material is injected and molded.

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