JP2012232784A - Inverted cap for container for highly viscous liquid - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an inverted cap for container for highly viscous liquid having excellent taking-out property from a mold.SOLUTION: The cap 12 is formed by heating and pressurizing within a mold a resin composition. The cap 12 includes: a cylindrical barrel 14 having a spout 20 at the upper part thereof; a lid 16 for closing the spout 20; and a hinge 18 for pivotably connecting the barrel 14 to the lid 16. The lid 16 includes: a body 24 engaged with the upper part of the barrel 14; and a flange 26 protruding from the body 24 at the upper part thereof. The flange 26 includes a cutout 36. The cutout 36 and the hinge 18 are located at positions superposed on each other in the vertical direction. Preferably, in the cap 12, the ratio of the maximum width of the lid 16 to the maximum width of the barrel 14 is in the range of ≥1.01 and ≤3.00 inclusive.

Description

  The present invention relates to an inverted cap for a container for high viscosity liquid.

  The shampoo container includes a bottle and a cap attached to the bottle. When a large capacity bottle is used, in this container, a dispenser having an accumulator and a guide tube is used as a cap. In this container, the shampoo put into the bottle is discharged by pushing down the saddle of the dispenser.

  With use, the liquid level of the shampoo gradually moves downward, and eventually the suction port of the guide tube that has been immersed in the shampoo appears. In this state, the dispenser sucks air. For this reason, even if the shampoo remains, even if the saddle is pushed down, the shampoo is not discharged. The container cannot be turned upside down with the dispenser attached.

  A shampoo is a highly viscous liquid. For this reason, even if the bottle is turned upside down, it takes time until the shampoo drips and drops. Many users remember the annoyance of using up their shampoo. There are similar problems with liquids such as rinses, treatments, conditioners and body soaps. Various studies have been made to use up the shampoo in the bottle without annoying it.

  FIG. 7 shows an inverted cap 2 of a conventional high viscosity liquid container. The cap 2 includes a body 4 and a lid 6. The lid 6 closes a spout (not shown) provided on the body 4. The body 4 and the lid 6 are connected by a hinge 8. The cap 2 is screwed into the bottle mouth.

  In the cap 2, when the lid 6 is lifted by placing a finger on the lid 6, the lid 6 rotates with respect to the body 4 about the hinge 8. Thereby, the spout of the trunk | drum 4 is exposed.

  A flange 10 is provided on the top of the cap 2. The outer diameter of the flange 10 is larger than the outer diameter of the body 4. For this reason, by using this cap 2, the container can be placed on the floor surface with the flange 10 facing down. Since the bottle is held upside down, the liquid accumulated at the bottom of the bottle hangs down by its own weight and accumulates in the cap 2 portion. For this reason, as soon as the user removes the lid 6, the liquid is discharged from the spout. The cap 2 can contribute to the use up of the liquid. An example of such a cap 2 is disclosed in Japanese Patent Application Laid-Open No. 2006-240634.

JP 2006-240634 A

  The cap 2 is molded by putting a resin composition into a mold cavity and heating and pressing it. After molding, the mold is opened and the cap 2 is taken out.

  FIG. 8 shows a cross section of the cap 2 of FIG. 7 with the lid 6 open. The mold cavity may be configured in the form shown in FIG.

  As illustrated, the flange 10 of the lid 6 overlaps with the hinge 8 in the vertical direction. This overlap hinders removal of the cap 2 from the mold. For this reason, in order to mold the cap 2, it is necessary to use a mold that takes into account the removal of the cap 2. A portion where the flange 10 and the hinge 8 overlap is also referred to as an undercut.

  Considering removal of the cap 2 having an undercut from the mold, the mold may be composed of a large number of parts. Such a mold is expensive. In addition, since the number of parts is large, it takes time to take out the cap 2. In such a form, it is difficult to produce the cap 2 inexpensively and stably.

  An object of the present invention is to provide an inverted cap of a container for a high viscosity liquid that is excellent in removal from a mold.

  The inverted cap of the container for high viscosity liquid according to the present invention comprises a cylindrical body having a spout at the upper part thereof, a lid that closes the spout, and a hinge that rotatably connects the body and the lid. I have. The lid includes a main body fitted on the upper portion of the body and a flange protruding from the main body. This flange is provided with a notch. In the vertical direction, the notch and the hinge are overlapped.

  Preferably, in the inverted cap of the container for high viscosity liquid, the ratio of the maximum width of the lid to the maximum width of the trunk is 1.01 or more and 3.00 or less.

  The container for high-viscosity liquids according to the present invention includes a bottle into which a high-viscosity liquid is charged and an inverted cap that is fitted into the mouth of the bottle. The inverted cap includes a cylindrical body having a spout at an upper portion thereof, a lid that closes the spout, and a hinge that rotatably connects the body and the lid. The lid includes a main body fitted to the upper portion of the body and a flange projecting radially outward from the main body. This flange is provided with a notch. In the vertical direction, the notch and the hinge are overlapped.

  In the inverted cap of the container for high-viscosity liquid according to the present invention, the notch of the flange is located at the position overlapping the hinge in the vertical direction. With this inverted cap, the formation of undercuts is suppressed. This inverted cap can be easily removed from the mold.

Fig.1 (a) is a front view of the inverted cap of the container for high-viscosity liquids concerning one Embodiment of this invention, FIG.1 (b) is the bottom view. FIG. 2 is a cross-sectional view taken along the line II-II in FIG. FIG. 3 is a plan view showing a state immediately after the inverted cap of FIG. 1 is taken out from the mold. FIG. 4 is a cross-sectional view taken along line IV-IV in FIG. FIG. 5 is a left side view showing the usage state of the inverted cap of FIG. 1. Fig.6 (a) is a top view of the inverted cap of the container for high viscosity liquids concerning other embodiment of this invention, FIG.6 (b) is the front view. Fig.7 (a) is a top view of the inverted cap of the conventional container for high viscosity liquids, FIG.6 (b) is the front view. FIG. 8 is a cross-sectional view of the inverted cap of FIG. 7 with its lid open.

  Hereinafter, the present invention will be described in detail based on preferred embodiments with appropriate reference to the drawings.

  Shown in FIG. 1 is an inverted cap 12. FIG. 2 shows a cross section of the cap 12 taken along the line II-II in FIG. The cap 12 is fitted into the mouth of a bottle (not shown). The container is configured by fitting the cap 12 to the bottle. A high viscosity liquid is charged into this container. Examples of the high viscosity liquid include shampoo, rinse, treatment, conditioner, body soap, hand soap, body lotion, hand cream and baby lotion.

  The cap 12 includes a body 14, a lid 16, and a hinge 18. The body 14 is cylindrical. A spout 20 is provided on the upper portion of the body 14. The high viscosity liquid described above can pass through the spout 20. A female screw 22 is provided on the inner peripheral surface of the body 14. This female screw 22 corresponds to the male screw at the mouth of the bottle. This cap 12 is screwed into the bottle. As shown in FIG. 1A, the outer peripheral surface of the body 14 is knurled.

  The lid | cover 16 is substantially disk shape. The lid 16 includes a main body 24 and a flange 26. The main body 24 has a substantially cylindrical shape with an upper portion closed. In the cap 12, the main body 24 is fitted on the upper portion of the body 14. Thereby, the spout 20 of the trunk | drum 14 is obstruct | occluded. As shown in FIG. 2, the main body 24 is provided with an outer cylinder 28 and an inner cylinder 30 that protrude from the lower surface thereof. The inner cylinder 30 is located inside the outer cylinder 28. When the main body 24 is fitted to the body 14, the tip end portion of the spout 20 is inserted between the outer cylinder 28 and the inner cylinder 30.

  The flange 26 extends radially outward from the main body 24 on the upper side of the main body 24. The flange 26 protrudes from the main body 24. The outer periphery 32 of the flange 26 has a substantially circular shape. When the cap 12 is placed on a smooth surface with the flange 26 facing down, the upper surface 34 of the flange 26 contacts the surface.

  As shown in the drawing, a notch 36 is provided in the flange 26 of the cap 12. The notch 36 has a shape that is recessed radially inward from the outer periphery 32 of the flange 26.

  The hinge 18 connects the body 14 and the lid 16. In the cap 12, when the lid 16 is lifted by placing a finger on the flange 26 of the lid 16, the lid 16 rotates with respect to the body 14 about the hinge 18. In the cap 12, the lid 16 and the body 14 are rotatably connected by the hinge 18.

  The cap 12 is formed from a resin composition. This resin composition contains a base resin. Examples of the base resin include thermoplastic resins such as polyethylene, polypropylene, polyethylene terephthalate, polycarbonate, nylon, and polystyrene. From the viewpoint of versatility and processability, polyethylene, polypropylene, and polyethylene terephthalate are more preferable. Note that these recycled materials may be used.

  The resin composition of the cap 12 can contain a chemical. Examples of the chemical include an antioxidant, a colorant, and a processing aid. The specifications of the cap 12 and the like are taken into consideration, and an optimal chemical is blended into the resin composition in an optimal amount.

  The cap 12 is formed by heating and pressurizing the resin composition in a mold (not shown). This mold is provided with a cavity. The shape of the cavity is equivalent to the shape of the cap 12. The resin composition is put into this cavity. At the time of charging, the mold is heated.

  The resin composition is heated and pressurized in the cavity. The resin composition flows by heating and pressurization. The resin composition is pressed against the cavity surface of the mold. The mold is cooled. Thereby, the resin composition is solidified and the cap 12 is obtained. After cooling, the cap 12 is removed from the mold.

  FIG. 3 shows the state of the cap 12 immediately after being removed from the mold. FIG. 4 is a sectional view taken along line IV-IV in FIG. As shown, the cap 12 is molded with the lid 16 open. In other words, the cavity of the mold used for forming the cap 12 is configured in the form shown in FIGS.

  In the cap 12, the notch 36 of the flange 26 and the hinge 18 overlap each other in the vertical direction. In the cap 12, the overlap of the main body 38 of the flange 26 and the hinge 18, in other words, the formation of undercut is suppressed. This cap 12 is excellent in the removal property from the mold.

  The cap 12 prevents excessive deformation when taken out from the mold. This form of the cap 12 can contribute to stable production of the high-quality cap 12.

  The cap 12 does not require a complicated configuration of the mold in consideration of the ability to take out from the mold. The cap 12 can contribute to a reduction in production cost. Since the mold can be configured with a small number of parts, the maintenance of the mold is easy.

  FIG. 5 shows the cap 12 in use. The cap 12 is fitted into the bottle 40. The container 42 is placed on the floor surface 44 with the flange 26 of the cap 12 facing downward.

  In the cap 12, the outer diameter of the flange 26 is wider than the outer diameter of the body 14, and the entire upper surface 34 of the flange 26 is in contact with the floor surface 44. The cap 12 can contribute to the stationary stability when the container 42 is turned upside down. The cap 12 is improved in the removal property from the mold without impairing the stationary stability.

  According to the cap 12, the state in which the container 42 is turned upside down is stably maintained, so that the liquid accumulated on the bottom of the bottle 40 of the container 42 hangs down by its own weight and accumulates in the portion of the cap 12. For this reason, as soon as the user removes the lid 16 of the cap 12, the liquid is discharged from the spout 20. The user does not remember the trouble of discharging the liquid. The cap 12 can contribute to the use up of the liquid.

  In FIG. 5, the double arrow line WA represents the maximum width of the lid 16. A double arrow line WB represents the maximum width of the body 14. The ratio (WA / WB) of the maximum width WA of the lid 16 to the maximum width WB of the body 14 is 1.01 or more and 3.00 or less. By setting the ratio (WA / WB) to be equal to or greater than 1.01, the cap 12 can contribute to the stationary stability when the container 42 is turned upside down. In this respect, the ratio (WA / WB) is more preferably equal to or greater than 1.05 and particularly preferably equal to or greater than 1.10. By setting this ratio (WA / WB) to be equal to or less than 3.00, it is possible to reduce the occupied area when the container 42 is turned upside down and left standing. In this respect, the ratio (WA / WB) is more preferably equal to or less than 2.90 and particularly preferably equal to or less than 2.80.

  FIG. 6 shows an inverted cap 46 for a container for high viscosity liquid according to another embodiment of the present invention. The cap 46 includes a body 48, a lid 50, and a hinge 52. In the cap 46, the configuration other than the lid 50 is the same as that of the cap 12 of FIG.

  The lid 50 includes a main body 54 and a flange 56. In the cap 46, the configuration other than the flange 56 is the same as that of the cap 12 of FIG.

  In the cap 46, the flange 56 extends radially outward from the main body 54 above the main body 54. The flange 56 protrudes from the main body 54. When the cap 46 is placed on a smooth surface with the flange 56 facing down, the upper surface 58 of the flange 56 contacts the surface.

  The outer periphery 60 of the flange 56 has a substantially hexagonal shape. This cap 46 is easy to be grasped. Even if the cap 46 is wet, the cap 46 can be easily attached to the bottle without slipping a hand holding the cap 46.

  As shown in FIG. 6A, a notch 62 is provided in the flange 56 of the cap 46. The notch 62 has a shape that is recessed radially inward from the outer periphery 60 of the flange 56.

  In the cap 46, the notch 62 of the flange 56 and the hinge 52 are located at the overlapping positions in the vertical direction. In the cap 46, the formation of undercut is suppressed. This cap 46 is excellent in the removal property from the mold.

  The cap 46 prevents excessive deformation when taken out from the mold. The form of the cap 46 can contribute to stable production of the high-quality cap 46.

  In the cap 46, the flange 56 is wider than the body 48, and the entire upper surface 58 of the flange 56 can abut against the floor surface. This cap 46 can contribute to the stationary stability when the container is turned upside down. The cap 46 achieves an improvement in the removal property from the mold without hindering the stationary stability.

  According to the cap 46, the state in which the container is turned upside down is stably maintained, so that the liquid accumulated in the bottom of the bottle 40 of the container hangs down by its own weight and accumulates in the portion of the cap 46. For this reason, as soon as the user removes the lid 50 of the cap 46, the liquid is discharged from the spout. The user does not remember the trouble of discharging the liquid. The cap 46 can contribute to the use up of the liquid.

  In FIG. 6, the double arrow line WC represents the maximum width of the lid 50. In the cap 46, the maximum width WC is indicated by a length that is maximum in a straight line connecting two vertices. A double arrow line WD represents the maximum width of the body 48. The ratio (WC / WD) of the maximum width WC of the lid 50 to the maximum width WD of the body 48 is 1.01 or more and 3.00 or less. By setting the ratio (WC / WD) to 1.01 or more, the cap 46 can contribute to the stationary stability when the container is turned upside down. In this respect, the ratio (WC / WD) is more preferably equal to or greater than 1.05 and particularly preferably equal to or greater than 1.10. By setting this ratio (WC / WD) to be equal to or less than 3.00, it is possible to reduce the occupation area when the container is turned upside down and left standing. In this respect, the ratio (WC / WD) is more preferably equal to or less than 2.90 and particularly preferably equal to or less than 2.80.

  The inverted cap described above can also be applied to various bottles.

2, 12, 46 ... Inverted cap 4, 14, 48 ... Body 6, 16, 50 ... Lid 8, 18, 52 ... Hinge 10, 26, 56 ... Flange 36, 62 ..Notch

Claims (3)

A cylindrical body having a spout at the top thereof, a lid for closing the spout, and a hinge for rotatably connecting the body and the lid;
The lid includes a main body fitted to the upper portion of the body, and a flange protruding from the main body.
This flange has a notch,
An upside-down cap for a container for high-viscosity liquid, wherein the notch and the hinge overlap each other in the vertical direction.   The inverted cap of the container for high viscosity liquid according to claim 1, wherein a ratio of the maximum width of the lid to the maximum width of the trunk is 1.01 or more and 3.00 or less. It has a bottle into which a highly viscous liquid is charged and an upside-down cap that fits into the mouth of this bottle.
The inverted cap includes a cylindrical body having a spout at an upper portion thereof, a lid that closes the spout, and a hinge that rotatably connects the body and the lid.
The lid includes a main body fitted to the upper portion of the body, and a flange projecting radially outward from the main body.
This flange has a notch,
A container for a high-viscosity liquid, in which the hinge is located, where the notch and the hinge overlap each other in the vertical direction.

Images