Hinge cap

Abstract

To provide a hinge cap which exhibits a comfortable click feeling, prevents the leakage of a high-viscosity content containing a solid content, and suppresses the deterioration of sealing between a nozzle and a lid even after repeated use.SOLUTION: A hinge cap comprising a cap body and a lid connected to the cap body via a hinge, wherein the cap body has a cap body top plate, a cap body skirt portion, a content pouring nozzle, and a cap body bank, the lid has a lid top plate, an inner ring, a lid skirt portion, and a lid skirt portion fitting projection, and a thickness of the inner ring at a contact portion between the inner ring and the content pouring nozzle when the lid is closed is - 0. 20mm or more and + 0. 20mm or less with respect to a thickness of the content pouring nozzle.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a hinge cap. [Background technology]

[0002] Hinge caps are known as caps for sealing containers such as tubes and bottles that contain food, cosmetics, medicines, etc. Hinge caps include a cap body that is attached to the container body and a lid that is connected to the cap body via a hinge so that it can be opened and closed freely.When the lid is in the closed position, the contents of the container can be sealed and protected, and when the lid is in the open position, the contents can be dispensed from a nozzle on the cap body for use.

[0003] Because hinge caps are easy to open and close, they are often used as caps for containers containing liquid contents that are frequently used in daily life, such as toothpaste and seasonings.

[0004] When a hinged-cap container is used to store highly viscous solid contents, such as toothpaste containing abrasives or mustard containing mustard seeds, the contents may adhere to the nozzle of the cap body over repeated use, gradually damaging the seal between the nozzle and the lid and making it difficult to maintain airtightness.

[0005] In this regard, the prior art discloses a configuration in which a bank is provided around the periphery of the top plate of the cap body.

[0006] For example, Patent Document 1 discloses a hinge cap having a cap body and a lid portion connected to the cap body via a hinge so that it can be opened and closed freely, in which a contact surface on the cap body side and a contact surface on the lid portion side are provided to improve adhesion, and a fitting groove and a fitting protrusion are provided to maintain the fitting state between the cap body and the lid portion.

[0007] Furthermore, Patent Document 2 discloses a hinge cap having a cap body and a lid connected to the cap body via a hinge so as to be freely opened and closed, which has an inner wall erected near the outer circumferential edge of the top plate of the cap body. Note that the inner wall in Patent Document 2 has a bent portion that is partially bent from near the outer circumferential edge toward the inside of the top plate, and this bent portion is provided with an air passage for inspecting the sealing part.

[0008] The outer peripheral wall of the cap cover in the hinge cap of Patent Document 1 and the inner wall of the cap body in the hinge cap of Patent Document 2 can function as a dike to block contents leaking from the nozzle. [Prior art documents] [Patent documents]

[0009] [Patent Document 1] Japanese Patent Application Laid-Open No. 2011-073687 [Patent Document 2] Japanese Patent Application Publication No. 2020-055544 Summary of the Invention [Problem to be solved by the invention]

[0010] One of the advantages of hinge caps is that when closing the lid, the user's fingers feel a pleasant "click" as they overcome a small resistance and reach the closed state, letting the user know that the lid of the hinge cap container is closed.

[0011] However, in hinge caps that have a dike around the top plate of the cap body to prevent leakage of highly viscous contents including solids, the lid and the dike may interfere with each other, resulting in a loss of the clicking sensation.

[0012] The present invention has been made in view of the above circumstances.

[0013] The object of the present invention is to provide a hinge cap that exhibits a pleasant clicking sensation, prevents leakage of highly viscous contents including solids, and suppresses deterioration of the seal between the nozzle and the lid even after repeated use. [Means for solving the problem]

[0014] The present invention is as follows.

[0015] Aspect 1: A hinge cap comprising a cap body and a lid connected to the cap body via a hinge so as to be able to be opened and closed freely, The cap body is The top plate of the cap body, a cap body skirt portion extending downward from the outer peripheral edge of the cap body top plate; a content dispensing nozzle protruding upward from the center of the top plate of the cap body and having a content dispensing outlet; a cap body bank that protrudes upward from the vicinity of the outer peripheral edge of the cap body top plate and surrounds the vicinity of the outer peripheral edge; and The lid is The lid top and an inner ring that protrudes downward from the center of the lid top plate and contacts the content pouring nozzle to form a tight seal when the lid is closed; a lid skirt portion extending downward from the outer peripheral edge of the lid top plate and contacting the cap body top plate when the lid is closed; a lid skirt fitting protrusion that protrudes inward from the inner surface of the lid skirt and detachably fits with the cap body bank when the lid is opened or closed; and The thickness of the inner ring at the contact portion between the inner ring and the content dispensing nozzle when the lid is closed is −0.20 mm or more and +0.20 mm or less relative to the thickness of the content dispensing nozzle. Hinge cap. <<Aspect 2>> A hinge cap according to aspect 1, wherein the thickness of the base portion of the inner ring is greater than 0 mm and not more than +0.3 mm relative to the thickness of the tip portion of the inner ring excluding the guide portion. <<Aspect 3>> A hinge cap as described in Aspect 1, wherein the thickness of the base of the content dispensing nozzle is greater than 0 mm and not more than +0.20 mm thick relative to the thickness of the tip of the content dispensing nozzle excluding the intake portion. <<Aspect 4>> A hinge cap according to aspect 1, wherein the thickness of the inner ring at the contact point between the inner ring and the content dispensing nozzle when the lid is closed is 0.50 mm or more and 1.20 mm or less. Aspect 5: The thickness of the base portion of the inner ring is greater than 0 mm and not more than +0.3 mm relative to the thickness of the tip portion of the inner ring excluding the lead-in portion, The thickness of the base of the content dispensing nozzle is greater than 0 mm and less than +0.2 mm with respect to the thickness of the tip of the content dispensing nozzle excluding the intake portion, and The thickness of the inner ring at the contact portion between the inner ring and the content dispensing nozzle when the lid is closed is 0.50 mm or more and 1.00 mm or less. The hinge cap according to embodiment 1. <<Aspect 6>> A hinge cap described in any one of aspects 1 to 5, wherein the cap body embankment has a bent portion that protrudes from the hinge side half of the cap body top plate and bends radially inward from near the outer peripheral edge of the cap body top plate. <<Aspect 7>> A hinge cap described in any one of aspects 1 to 5, wherein the rotation axis of the hinge when the lid is opened or closed is located at a position higher than the top plate of the cap body, thereby making the angle between the top plate of the cap body and the top plate of the lid greater than or equal to 1° and less than or equal to 5° when the contents dispensing nozzle and the inner ring first come into contact when the lid is closed. Aspect 8: A container comprising the hinge cap according to any one of aspects 1 to 5 and a container body. <<Aspect 9>> A container containing a content, comprising the container described in aspect 8 and a content. Aspect 10: A container containing a content as described in Aspect 9, wherein the content contains a solid and a viscous body. Aspect 11: A container containing a content according to aspect 10, wherein the content is toothpaste, food, cosmetics, or medicine. [Effects of the Invention]

[0016] The hinge cap of the present invention provides a pleasant clicking sensation, prevents leakage of highly viscous contents including solids, and inhibits deterioration of the seal between the nozzle and the lid even after repeated use. [Brief explanation of the drawings]

[0017] [Figure 1] Figure 1 is a diagram illustrating an example of a hinge cap of the present invention when the lid is in an open state, where Figure 1(a) is a perspective view, Figure 1(b) is a top view, and Figure 1(c) is a cross-sectional view taken along line AA in Figure 1(b). [Figure 2] Figure 2 is a diagram illustrating an example of a hinge cap of the present invention when the lid is in a closed state, where Figure 2(a) is a perspective view, Figure 2(b) is a top view, and Figure 2(c) is a cross-sectional view taken along line BB in Figure 2(b). [Figure 3] FIG. 3 is a partial enlarged view of part C in FIG. 2(c). [Figure 4] FIG. 4 is a cross-sectional view showing the trajectory of the tip of the lid skirt when the hinge cap, in which the bank of the cap body has a bent portion, is opened or closed. [Figure 5] FIG. 5 is a graph simulating the stress that the user experiences from the lid (200) when closing the lid. DETAILED DESCRIPTION OF THE INVENTION

[0018] The hinge cap of the present invention comprises: A hinge cap including a cap body and a lid connected to the cap body via a hinge so as to be able to be opened and closed freely, The cap body is The top plate of the cap body, a cap body skirt portion extending downward from the outer peripheral edge of the cap body top plate; a content dispensing nozzle protruding upward from the center of the top plate of the cap body and having a content dispensing outlet; a cap body bank that protrudes upward from the vicinity of the outer peripheral edge of the cap body top plate and surrounds the vicinity of the outer peripheral edge; and The lid is The lid top and an inner ring that protrudes downward from the center of the lid top plate and contacts the content pouring nozzle to form a tight seal when the lid is closed; a lid skirt portion extending downward from the outer peripheral edge of the lid top plate and contacting the cap body top plate when the lid is closed; a lid skirt fitting protrusion that protrudes inward from the inner surface of the lid skirt and detachably fits with the cap body bank when the lid is opened or closed; and The thickness of the inner ring at the contact portion between the inner ring and the content dispensing nozzle when the lid is closed is −0.20 mm or more and +0.20 mm or less relative to the thickness of the content dispensing nozzle. It is a hinge cap.

[0019] In the hinge cap of the present invention, the thickness of the inner ring and the content dispensing nozzle are approximately equal at the contact point between the inner ring and the content dispensing nozzle when the lid is closed. Therefore, even if high-viscosity contents containing solids adhere to the contact point between the inner ring and the content dispensing nozzle, the resulting stress is applied approximately equally to both the inner ring and the content dispensing nozzle. In other words, in such cases, excessive stress is not applied to either the inner ring or the content dispensing nozzle. Therefore, irreversible deformation of the inner ring or the content dispensing nozzle is suppressed, and leakage of contents from the nozzle is prevented even with long-term continuous use.

[0020] The hinged cap of the present invention also includes a cap body dam that protrudes upward from near the outer periphery of the cap body top plate and surrounds the periphery. Therefore, even if the contents leak from the nozzle during continued use, the leaked contents are blocked by the cap body dam, reducing the risk of them leaking outside the cap.

[0021] Furthermore, in one embodiment of the present invention, the cap body embankment has a bent portion that bends radially inward from the vicinity of the outer peripheral edge of the cap body top plate in the portion that protrudes from the hinge side half of the cap body top plate, thereby reliably preventing interference between the lower end of the lid skirt and the cap body embankment when closing the lid, providing an extremely pleasant clicking sensation.

[0022] In this specification, "up" and "down" refer to the up-down direction when the lid of the hinge cap of the present invention is in a closed state and placed on a horizontal surface with the end of the cap body skirt portion in contact with the surface. When the hinge cap is placed in this state, the direction in which gravity acts is the "down" direction, and the opposite direction is the "up" direction. Although the up-down direction of the lid can be reversed between the open state and the closed state, "up" and "down" in this specification refer to the up-down direction when the hinge cap is placed with the lid in a closed state.

[0023]

[0023] Hereinafter, exemplary configurations of the hinge cap of the present invention will be described with reference to the drawings. However, the scope of the present invention is not limited to the embodiments embodied in the drawings, but is defined by the appended claims.

[0024] Hinge cap An example of the configuration of the hinge cap of the present invention is shown in Figures 1 and 2. Figure 1 shows the configuration of the hinge cap when the lid is in an open state, and Figure 2 shows the configuration of the hinge cap when the lid is in a closed state.

[0025] The hinge cap (500) of Figures 1 and 2 has a cap body (100), a lid (200), a spring plate (300), and a hinge (310), and the lid (200) is connected to the cap body (100) via the spring plate (300) and the hinge (310) so as to be able to be opened and closed freely.

[0026] The cap body (100), the lid (200), and the spring plate (300) may be manufactured as separate parts and then assembled together, or may be an integrated part.

[0027] <Cap body> The cap body (100) A cap body top plate (110), a cap body skirt portion (120) extending downward from the outer peripheral edge of the cap body top plate (110); a content dispensing nozzle (130) protruding upward from the center of the cap body top plate (110) and having a content dispensing outlet; a cap body bank (140) that protrudes upward from the vicinity of the outer peripheral edge of the cap body top plate (110) and surrounds the vicinity of the outer peripheral edge; It has.

[0028] The cap body (100) may further have a cap body engaging tube (150) that protrudes downward from the center of the cap body top plate (110) and engages with the mouth of the container body to connect the inside of the container body to the content dispensing outlet.

[0029] <Cap body top plate> The cap body top plate (110) is a horizontal surface that defines the upper surface of the cap body (100), and may be circular, elliptical, polygonal, or a combination of these shapes, or a shape in which a part of these shapes is cut off.

[0030] <Cap body skirt part> The cap body skirt portion 120 extends downward from the outer peripheral edge of the cap body top plate 110. The cap body skirt portion 120 forms a hollow cylindrical shape or a similar shape below the cap body top plate 110, with the cap body top plate 110 serving as the bottom surface. In the example shown in Figures 1 and 2, the cap body skirt portion 120 has a hollow cylindrical shape with a portion cut off, but is not limited to this.

[0031] The cap body skirt portion (120) typically has a diameter approximately the same as that of the container body (not shown) to which the hinge cap (500) is intended to be attached, and the lid skirt portion described below, and may be configured so that when the hinge cap (500) is attached to the container body, the hinge cap (500) and the container body appear to form a continuous straight line or curve, giving the appearance of being one body.

[0032] 1 and 2, the outer peripheral surfaces of the cap body skirt portion 120 and the lid skirt portion (described later) have a shape in which parts are cut off, giving an observer the impression that the cut surface of the cap body skirt portion 120 and the cut surface of the lid skirt portion form a continuous surface. This shape is also one example of a preferred embodiment of the hinge cap of the present invention.

[0033] In general, the diameter of the mouth of the container body is often smaller than the diameter of the container body. In this case, in order to create a sense of unity between the hinge cap (500) and the container body, the downward extension length of the cap body skirt portion (120) may be made longer than the extension length of the cap body engaging tube (150) described below, thereby concealing the mouth of the container body.

[0034] <Contents dispensing nozzle> The content dispensing nozzle (130) protrudes upward from the center of the top plate of the cap body and has a content dispensing outlet that is fluidly connected to the inside of the container body (not shown). When the user applies pressure to the container body, for example, by pressing it with their hand, the content of the container body is forced out of the content dispensing outlet and is ready for use.

[0035] 1 and 2, the content dispensing nozzle 130 has a hollow cylindrical or truncated conical shape that is concentric with the cap body top plate 110. However, the content dispensing nozzle 130 does not have to be concentric with the cap body top plate 110.

[0036] The protruding height and diameter (inner diameter) of the content dispensing nozzle (130) from the cap body top plate (110) may be appropriately set depending on the viscosity of the content, the expected amount to be used per use, etc.

[0037] The protrusion height of the content dispensing nozzle (130) from the cap body top plate (110) may be, for example, 1.0 mm or more, 2.0 mm or more, 3.0 mm or more, or 4.0 mm or more, and may be, for example, 20 mm or less, 15 mm or less, 12 mm or less, or 10 mm or less. The inner diameter of the content dispensing nozzle (130) may be, for example, 5.0 mm or more, 7.0 mm or more, or 8.0 mm or more, and may be, for example, 20 mm or less, 18 mm or less, or 15 mm or less.

[0038] As shown in Figures 1(c) and 2(c), the inner diameter of the content dispensing nozzle (130) may be approximately the same from the bottom of the inlet portion to the top plate (110) of the cap body, except that it has an inlet portion at the top (tip).

[0039] In addition, the outer diameter of the content dispensing nozzle (130) may be approximately the same from the bottom of the top radius to the top of the bottom radius, except that it may have a slight radius (rounded corners) at the top (tip) and bottom (the side closest to the cap body top plate (110)).

[0040] The thickness from the bottom end of the topmost curve of the content dispensing nozzle (130) to the top end of the bottommost curve may be, on average, for example, 0.50 mm or more, 0.55 mm or more, 0.60 mm or more, 0.65 mm or more, 0.70 mm or more, or 0.75 mm or more, and may be, for example, 1.20 mm or less, 1.10 mm or less, 1.00 mm or less, 0.90 mm or less, 0.85 mm or less, 0.80 mm or less, or 0.75 mm or less.

[0041] The thickness of the base of the content dispensing nozzle (130) may be greater than 0 mm, +0.05 mm or more, +0.10 mm or more, or +0.15 mm or more relative to the thickness of the tip excluding the introduction portion, and may be +0.25 mm or less, +0.23 mm or less, +0.20 mm or less, or +0.18 mm or less. Here, the thickness of the base of the content dispensing nozzle (130) means the thickness of the lowest part excluding the radius, if the content dispensing nozzle (130) has a radius at the base (the side closer to the cap body top plate (110)).

[0042] In combination with the above-mentioned thickness requirements, the thickness of the content dispensing nozzle (130) gradually increases from the bottom of the top radius to the top of the bottom radius, but the increase is very slight, resulting in a nearly straight shape. As a result, even if highly viscous content containing solids adheres to the contact area between the inner ring and the content dispensing nozzle (130), the content dispensing nozzle (130) can deform as a single unit from top to bottom, and excessive load is not applied to any particular part, so deterioration of the sealing performance is suppressed even when the hinge cap of the present invention is used continuously for a long period of time.

[0043] <Cap body embankment> The cap body dike (140) protrudes upward from near the outer peripheral edge of the cap body top plate (110) and runs around the outer peripheral edge. The cap body dike (140) has the function of blocking leakage of contents from the contents dispensing nozzle (130) during repeated use of a container including the hinge cap (500) of the present invention, thereby preventing the contents from leaking beyond the hinge cap (500).

[0044] Positioning the cap body dike (140) as close as possible to the outer periphery of the cap body top plate (110) increases the capture rate of leaked contents when they are scattered from the content dispensing nozzle (130) and increases the amount of leaked contents that can be blocked. On the other hand, since the lid skirt (described below) contacts the outer periphery of the cap body top plate (110) when the lid (200) is closed, it is preferable to leave a predetermined distance from the outer periphery of the lid top plate (210) to allow for contact with the lid skirt. The position of the cap body dike (140) may be determined as appropriate by a person skilled in the art, taking these factors into consideration.

[0045] The higher the protrusion height of the cap body embankment (140) from the cap body top plate (110), the greater the amount of leaked contents that can be blocked. On the other hand, if the protrusion height of the cap body embankment (140) from the cap body top plate (110) is excessively high, the cap body embankment (140) may interfere with the track of the lid skirt portion (220) when closing the lid (200), which may impair the ease of forming a tight seal and the comfortable click feeling. The protrusion height of the cap body embankment (140) may be appropriately set by a person skilled in the art, taking these factors into consideration.

[0046] The protruding height of the cap body embankment (140) from the cap body top plate (110) may be, for example, 5% or more, 10% or more, or 15% or more as a percentage of the protruding height of the content dispensing nozzle (130), and may be, for example, 40% or less, 35% or less, 30% or less, or 25% or less.

[0047] The cap body embankment (140) goes around the vicinity of the outer peripheral edge of the cap body top plate (110). In this regard, in the hinge cap (500) of Figures 1 and 2, the cap body embankment (140) appears to be cut off near the hinge by the hinge protrusion (320) described below. Even in such a case, as long as the protruding portion from the cap body top plate (110) goes around the vicinity of the outer peripheral edge of the cap body top plate (110), it can be considered that the cap body embankment (140) as a whole forms the cap body embankment (140).

[0048] The cap body embankment (140) may have a cap body embankment engaging protrusion (141) that engages with the lid skirt engaging protrusion (221) when the lid (200) is closed. For example, the cap body embankment engaging protrusion (141) may be configured to protrude slightly radially outward from the cap body top plate (110) from the top of the cap body embankment (140) or its vicinity in a predetermined length region of the portion of the cap body embankment (140) that faces the spring plate (300). This configuration provides a pleasant clicking sensation when the lid (200) is closed. The position and shape of the cap body embankment engaging protrusion (141) are arbitrary as long as it can detachably engage with the lid skirt engaging protrusion (221) when the lid (200) is opened or closed, thereby preventing the lid (200) from opening or closing unintentionally.

[0049] The cap body embankment (140) may have a bent portion (140a) that bends radially inward from the vicinity of the outer peripheral edge of the cap body top plate (110) in a portion that protrudes from the half of the cap body top plate (110) that faces the spring plate (300). When the cap body embankment (140) has the bent portion (140a), interference between the cap body embankment (140) and the track of the lid skirt portion (220) is avoided when the lid (200) is closed.

[0050] The shape and size of the bent portion (140a) are arbitrary as long as they can avoid interference between the trajectory of the lid skirt portion (220) when closing the lid (200) and the cap body embankment (140) and do not impair the function of blocking leaked contents.

[0051] The cap body bank (140) of the hinge cap (500) of Figures 1 and 2 has a bent portion (140a) in the form shown in Figures 1(a) and 1(b). That is, the cap body bank (140) of the hinge cap (500) is bent radially inward of the cap body top plate (110) by reducing its radius by about 20% over an angle of about 35° at two portions including the planned passing points of the trajectory of the lid skirt portion (220).

[0052] The length of the bend (the angular range over which the radius is reduced) may be, for example, 5° or more, 10° or more, 15° or more, or 20° or more, and may be, for example, 50° or less, 45° or less, 40° or less, or 35° or less.

[0053] The degree of bending of the bent portion (the ratio of the reduction in the radius of the bent portion relative to the radius of the cap body embankment) may be, for example, 5% or more, 10% or more, 12% or more, or 15% or more, or 50% or less, 40% or less, 30% or less, or 25% or less.

[0054] FIG. 3 is a cross-sectional view showing the trajectory of the tip of the lid skirt when the lid is opened and closed in a hinge cap in which the bank of the cap body has a bent portion.

[0055] As shown in Fig. 3, the bent portion (140a) of the cap body embankment (140) avoids the intended point of passage of the tip of the lid skirt portion (220). Therefore, the point of the tip of the lid skirt portion (220) that is close to the axis of rotation of the hinge (310) passes through a point where the cap body embankment (140) is not present, and therefore does not interfere with the cap body embankment (140), ensuring smoothness, ease, and a clicking sensation when forming a seal.

[0056] <Cap body engaging tube> The cap body (100) may have a cap body engaging tube (150).

[0057] The cap body engaging tube (150) protrudes downward from the center of the cap body top plate (110) and engages with the mouth of the container body (not shown), thereby connecting the inside of the container body with the content dispensing outlet of the content dispensing nozzle (130).

[0058] 1 and 2, the cap body engaging tube 150 has a hollow cylindrical shape that is concentric with the cap body top plate 110. However, the cap body engaging tube 150 does not have to be concentric with the cap body top plate 110.

[0059] 1 and 2, the cap body engaging tube (150) is disposed directly below the content dispensing nozzle (130). However, the cap body engaging tube (150) may be disposed at a position other than directly below the content dispensing nozzle (130) as long as it is fluidly connected to the content dispensing outlet.

[0060] The cap body engaging tube (150) is intended to engage with the opening of the container body. There are no limitations on the form of this engagement. In the hinge cap (500) of Figures 1 and 2, the cap body thread portion (151) is formed on the inner surface of the cap body engaging tube (150) and is intended to be screwed into the opening of the container body, but the form of engagement is not limited to screwing.

[0061] "lid" The lid of the hinge cap of the present invention is connected to the cap body via a hinge so as to be able to be opened and closed freely.

[0062] The lid (200) is Lid top plate (210) and an inner ring (230) that protrudes downward from the center of the lid top plate (210) and comes into contact with the content dispensing nozzle (130) to form a tight seal when the lid (200) is closed; a lid skirt portion (220) extending downward from the outer peripheral edge of the lid top plate (210) and contacting the cap body top plate (110) when the lid (200) is closed; A lid skirt fitting protrusion (221) protrudes from the inner surface of the lid skirt portion (220) inward of the lid skirt portion (220) and detachably fits with a cap body bank fitting protrusion (141) of the cap body bank (140) when the lid (200) is opened or closed. It has the following characteristics.

[0063] <Lid top> The lid top plate (210) is a horizontal plane that defines the top surface of the lid (200), and may be circular, elliptical, polygonal, or a combination of these shapes, or a shape obtained by cutting a part of these shapes, etc. The lid top plate (210) typically has a shape that is congruent with or similar to the cap main body top plate (110), or a shape similar to these, but is not limited to these.

[0064] <Inner ring> The inner ring (230) protrudes downward from the center of the lid top plate (210) and has the function of contacting the content dispensing nozzle (130) to form a tight seal when the lid (200) is closed. In this case, for example, when the lid (200) is closed, the outer surface near the bottom end of the inner ring (230) may contact the inner surface near the top end of the content dispensing nozzle (130).

[0065] The position and size (protruding height, outer diameter, etc.) of the inner ring (230) are determined appropriately according to the position of the content dispensing nozzle (130) so that it can perform the above-mentioned functions.

[0066] As can be seen in FIGS. 1 and 2, the inner ring (230) may be hollow and cylindrical.

[0067] 2(c), when the lid (200) is closed, the tip of the inner ring (230) fits into the interior of the content dispensing nozzle (130) near the upper end, thereby forming a good seal. The length by which the tip of the inner ring (230) fits into the interior of the content dispensing nozzle (130) may be appropriately determined by those skilled in the art depending on the viscosity of the contents, etc., but may be, for example, 0.5 mm or more, 1.0 mm or more, or 1.5 mm or more, and may be, for example, 5.0 mm or less, 4.0 mm or less, 3.0 mm or less, or 2.0 mm or less.

[0068] As shown in Figures 1(c) and 2(c), the outer diameter of the inner ring (230) may be approximately the same from the bottom of the upper radius to the top of the lower lead-in portion, except that it has a slight radius at the top (the side closest to the lid top plate (210)) and a lead-in portion at the bottom (tip).

[0069] The inner diameter of the inner ring (230) may be substantially constant from the bottom to the tip, except for a slight radius at the top (the side closest to the lid top plate (210)). The inner ring (230) may have a slight radius at the bottom.

[0070] The thickness from the bottom of the curve of the inner ring (230) to the tip may be, on average, for example, 0.40 mm or more, 0.45 mm or more, 0.50 mm or more, 0.55 mm or more, or 0.60 mm or more, and may be, for example, 1.10 mm or less, 1.00 mm or less, 0.90 mm or less, 0.80 mm or less, 0.70 mm or less, or 0.65 mm or less.

[0071] The thickness of the base of the inner ring (230) may be greater than 0 mm, +0.05 mm or more, +0.10 mm or more, +0.15 mm or more, or 0.17 mm or more relative to the thickness of the tip excluding the introduction portion, and may be +0.30 mm or less, +0.25 mm or less, +0.23 mm or less, +0.20 mm or less, or +0.18 mm or less. Here, the thickness of the base of the content dispensing nozzle means the thickness of the lowest part excluding the radius, if the content dispensing nozzle has a radius at the base (the side closer to the cap body top plate (110)).

[0072] In combination with the above-mentioned thickness requirements, the thickness of the inner ring (230) gradually increases from the bottom of the radius to the top of the intake section, but the increase is very slight, resulting in a nearly straight shape. As a result, even if a highly viscous content containing solids adheres to the contact area between the inner ring (230) and the content dispensing nozzle, the inner ring (230) can deform integrally from top to bottom, and excessive load is not applied to any particular part, so deterioration of the sealing performance is suppressed even when the hinge cap of the present invention is used continuously for a long period of time.

[0073] <Flat Skirt Club> The lid skirt portion (220) extends downward from the outer peripheral edge of the lid top plate (210). The lid skirt portion (220) forms a hollow cylindrical shape or a similar shape below the lid top plate (210), with the lid top plate (210) as its bottom surface. In the example shown in Figures 1 and 2, the lid skirt portion (220) has a hollow cylindrical shape with a portion cut off, but is not limited to this.

[0074] The lid skirt portion (220) is configured to come into contact with the cap body top plate (110) when the lid (200) is closed, so that, as shown in Figures 2(a) to 2(c), when the lid (200) is closed, the cap body (100) and the lid (200) appear as a single unit.

[0075] The lid skirt portion (220) typically has approximately the same diameter as the container body (not shown) to which the hinge cap (500) is intended to be attached and the above-mentioned cap body skirt portion, and may be configured so that when the hinge cap (500) is attached to the container body, the hinge cap (500) and the container body appear to form a continuous straight line or curve, giving the appearance of being one body.

[0076] <Lid skirt fitting protrusion> The lid skirt fitting projection (221) projects radially inward from the inner surface of the lid skirt (220). This lid skirt fitting projection (221) detachably fits with the cap body bank fitting projection (141) when opening and closing the lid (200), thereby preventing the lid (200) from opening accidentally. This configuration also provides a pleasant clicking sensation when the lid (200) is closed.

[0077] The hinge cap of Figures 1 and 2 has a lid skirt portion fitting protrusion (221) that protrudes radially inward from near the lower end of the lid skirt portion (220) in a region of a predetermined length in the portion of the lid skirt portion (220) that faces the spring plate (300).

[0078] The position and shape of the lid skirt engaging protrusion (221) are arbitrary as long as it can detachably engage with the cap body embankment engaging protrusion (141) when opening and closing the lid (200) and perform the function of preventing the lid (200) from opening accidentally.

[0079] Hinge The hinge in the hinge cap of the present invention has the function of connecting the lid to the cap body so that the lid can be opened and closed freely.

[0080] The hinge in the hinge cap of the present invention may be selected from known shapes, such as a butterfly hinge, a point hinge, a three-point hinge, a band hinge, etc. The hinge cap (500) shown in Figures 1 and 2 has a three-point hinge, but is not limited to this.

[0081] The rotation axis of the hinge (310) when the lid (200) is opened or closed may be located higher than the cap body top plate (110) as shown in FIGS.

[0082] The rotation axis of the hinge (310) refers to the center point of a circular orbit of any one point on the lid (200) when the lid (200) is opened or closed, when the hinge cap is observed from a direction perpendicular to the plane to which the opening and closing orbit belongs when the lid (200) is opened or closed.

[0083] Since the rotation axis of the hinge (310) is located higher than the cap body top plate (110), when the content dispensing nozzle (130) and the inner ring (230) first come into contact with each other when the lid (200) is closed, the angle (θ) formed between the cap body top plate (110) and the lid top plate (210) is set to be greater than or equal to 1° and less than or equal to 5°.

[0084] If the angle (θ) is 5° or less, when the lid (200) is closed, the angle between the content dispensing nozzle (130) and the inner ring (230) when they first come into contact is small, so that they come into contact at an angle close to parallel, which allows for smooth closing and easy formation of a tight seal. If the angle (θ) is 1° or more, when the lid (200) is completely closed, the angle between the content dispensing nozzle (130) and the inner ring (230) is small, so that the angle between them becomes close to parallel when the seal is formed, which allows for reliable formation and maintenance of a tight seal.

[0085] The angle (θ) may be 1.5° or more, or 2° or more, and may be 4° or less, or 3° or less.

[0086] To make this angle (θ) between 1° and 5°, Height H of the hinge (310) rotation axis relative to the cap body top plate (110) ax and, The content dispensing nozzle (130) protrudes upward from the center of the cap body top plate (110). n and may be approximately the same height.

[0087] Quantitatively, the height H of the rotation axis of the hinge (310) relative to the top plate (110) of the cap body ax and the content dispensing nozzle (130) protruding upward from the center of the cap body top plate (110) is a content dispensing nozzle protrusion height H n Relative to H ax / H n may be, for example, 0.50 or more, 0.60 or more, 0.70 or more, or 0.80 or more, and may be, for example, 1.10 or less, 1.05 or less, or 1.00 or less.

[0088] In order to position the rotation axis of the hinge (310) at a position higher than the cap body top plate (110), the spring plate (300) in the hinge cap of the present invention may be positioned on a hinge raising portion (320) located on the cap body top plate (110).

[0089] The shape, size, and location of the hinge raiser portion 320 are arbitrary as long as the rotation axis of the hinge 310 can be located at a predetermined distance higher than the cap body top plate 110. The hinge cap 500 in Figures 1 and 2 has a substantially rectangular parallelepiped hinge raiser portion 320, but the shape is not limited to this.

[0090] <<Difference in thickness between the inner ring and the contents dispensing nozzle at the contact point>> In the hinge cap of the present invention, the thickness of the inner ring at the contact point between the inner ring and the content dispensing nozzle when the lid is closed is within the range of -0.20 mm or more and +0.20 mm or less relative to the thickness of the content dispensing nozzle.

[0091] At the contact point between the inner ring and the content dispensing nozzle when the lid is closed, the thickness of the inner ring may be −0.18 mm or more, −0.16 mm or more, −0.12 mm or more, −0.10 mm or more, −0.05 mm or more, ±0.00 mm or more, +0.12 mm or more relative to the thickness of the content dispensing nozzle, or may be +0.18 mm or less, +0.16 mm or less, +0.12 mm or less, +0.10 mm or less, +0.05 mm or less, ±0.00 mm or less, −0.12 mm or less.

[0092] The hinge cap of the present invention may be configured such that when the lid is closed, the inner ring and the content dispensing nozzle come into surface contact, thereby sealing the contents. This contact surface appears as a straight line in a cross-sectional view. The length of a horizontal line passing through the center of this line through the inner ring is the "thickness of the inner ring at the contact point between the inner ring and the content dispensing nozzle," and the length of the line through the content dispensing nozzle is the "thickness of the content dispensing nozzle at the contact point between the inner ring and the content dispensing nozzle."

[0093] For example, in the embodiment of FIG. 3, the inner ring and the content dispensing nozzle are in contact in the range from the top of the inner ring's intake part to the bottom of the content dispensing nozzle's intake part. In this case, the bottom of the intake part of the content dispensing nozzle is the "top of the contact part", the top of the inner ring's intake part is the "bottom of the contact part", and the center of these is the "center of the contact part". The length (t i ) is the "thickness of the inner ring at the contact point between the inner ring and the contents dispensing nozzle", and the length (t n ) is the "thickness of the content dispensing nozzle at the contact point between the inner ring and the content dispensing nozzle."

[0094] In the hinge cap of the present invention, the thickness of the inner ring and the content dispensing nozzle are approximately equal at the contact surface between them when the lid is closed. As a result, even if high-viscosity content containing solids adheres to the contact area between the inner ring and the content dispensing nozzle, an approximately equal stress load is applied to both the inner ring and the content dispensing nozzle, preventing excessive stress from being applied to either one and causing damage.

[0095] The thickness of the inner ring at the contact point between the inner ring and the content dispensing nozzle when the lid is closed may be 0.50 mm or more, 0.55 mm or more, or 0.60 mm or more, and may be 1.20 mm or less, 1.10 mm or less, 1.00 mm or less, or 0.95 mm or less.

[0096] Advantages of the hinge cap of the present invention The hinge cap of the present invention provides a pleasant clicking sensation, prevents leakage of highly viscous contents including solids, and inhibits deterioration of the seal between the nozzle and the lid even after repeated use.

[0097] The click property exhibited by the hinge cap of the present invention was examined below.

[0098] FIG. 5 shows a graph simulating the stress that a user receives from the lid (200) when closing the lid (200) of the hinge cap of the present invention shown in FIGS.

[0099] Figure 5 shows graphs for the cases where the thickness of the inner ring at the contact point between the inner ring and the content dispensing nozzle when the lid is closed is -0.20 mm (plotted with "●"), -0.15 mm (plotted with "△"), -0.11 mm (plotted with "◯"), and +0.15 mm (plotted with "□") relative to the thickness of the content dispensing nozzle. These graphs show the change in stress over time when the hinge cap lid is pressed in at a constant speed (300 mm / min) using a Tensilon testing machine.

[0100] According to Figure 5, when the thickness of the inner ring was -0.20 mm relative to the thickness of the content dispensing nozzle, no clear stress peak was observed. In contrast, when the thickness of the inner ring was between -0.15 mm and +0.15 mm relative to the thickness of the content dispensing nozzle, a clear stress peak was observed. This proves that, at least when the thickness of the inner ring is between -0.15 mm and +0.15 mm relative to the thickness of the content dispensing nozzle, users can enjoy a clear and comfortable clicking sensation.

[0101] "container" According to another aspect of the present invention, there is provided a container comprising the above-described hinge cap and a container body, which may be used, for example, as a container for storing contents containing solids and viscous bodies.

[0102] The solids contained in the contents may be in the form of, for example, particles, crystals, amorphous bodies, lumps, etc. The materials constituting these solids may be, for example, metals, minerals, ceramics, glass ceramics, organic solids, wood, organic polymers, etc., and composites thereof, etc.

[0103] The contents may be, for example, toothpaste, food, cosmetics, medicines, etc.

[0104] 《Container with contents》 According to yet another aspect of the present invention, there is provided a container containing a content, comprising the above-described container and a content. The above description of the content housed in the container of the present invention can be applied to this content. [Explanation of symbols]

[0105] 100 cap body 110 Cap body top plate 120 Cap body skirt 130 Contents dispensing nozzle 140 Cap body embankment 140a Bend section 141 Cap body embankment fitting projection 150 Cap body engaging tube 151 Cap body screw part 200 lid 210 Lid top plate 220 Lid skirt part 221 Lid skirt fitting protrusion 230 Inner Ring 300 Spring Plate 310 Hinge 320 Hinge raising part 500 Hinge Cap t i Thickness of the inner ring at the contact point between the inner ring and the contents dispensing nozzle t n Thickness of the contents dispensing nozzle at the contact point between the inner ring and the contents dispensing nozzle

Claims

1. A hinge cap including a cap body and a lid connected to the cap body via a hinge so as to be able to be opened and closed freely, The cap body is The top plate of the cap body, a cap body skirt portion extending downward from the outer peripheral edge of the cap body top plate; a content dispensing nozzle protruding upward from the center of the top plate of the cap body and having a content dispensing outlet; a cap body bank that protrudes upward from the vicinity of the outer peripheral edge of the cap body top plate and surrounds the vicinity of the outer peripheral edge; and The lid is The lid top and an inner ring that protrudes downward from the center of the lid top plate and contacts the content pouring nozzle to form a tight seal when the lid is closed; a lid skirt portion extending downward from the outer peripheral edge of the lid top plate and contacting the cap body top plate when the lid is closed; a lid skirt fitting protrusion that protrudes inward from the inner surface of the lid skirt and detachably fits with the cap body bank when the lid is opened or closed; and The thickness of the inner ring at the contact portion between the inner ring and the content dispensing nozzle when the lid is closed is −0.20 mm or more and +0.20 mm or less relative to the thickness of the content dispensing nozzle. Hinge cap.

2. The hinge cap according to claim 1 , wherein the thickness of the root portion of the inner ring is greater than 0 mm and not more than +0.3 mm relative to the thickness of the tip portion of the inner ring excluding the lead-in portion.

3. 2. The hinge cap according to claim 1, wherein the thickness of the base portion of the content dispensing nozzle is greater than 0 mm and not more than +0.20 mm relative to the thickness of the tip portion of the content dispensing nozzle excluding the intake portion.

4. 2. The hinge cap according to claim 1, wherein the thickness of the inner ring at the contact portion between the inner ring and the content dispensing nozzle when the lid is closed is 0.50 mm or more and 1.00 mm or less.

5. the thickness of the root portion of the inner ring is greater than 0 mm and not more than +0.3 mm relative to the thickness of the tip portion of the inner ring excluding the lead-in portion, The thickness of the base of the content dispensing nozzle is greater than 0 mm and less than or equal to +0.2 mm relative to the thickness of the tip of the content dispensing nozzle excluding the intake portion, and The thickness of the inner ring at the contact portion between the inner ring and the content dispensing nozzle when the lid is closed is 0.50 mm or more and 1.00 mm or less. The hinge cap according to claim 1 .

6. A hinge cap as described in any one of claims 1 to 5, wherein the cap body embankment has a bent portion that protrudes from the hinge side half of the cap body top plate and bends radially inward from near the outer peripheral edge of the cap body top plate.

7. A hinge cap as described in any one of claims 1 to 5, wherein the rotation axis of the hinge when the lid is opened and closed is located at a position higher than the top plate of the cap body, so that when the contents dispensing nozzle and the inner ring first come into contact when the lid is closed, the angle formed between the top plate of the cap body and the top plate of the lid is 1° or more and 5° or less.

8. The hinge cap according to any one of claims 1 to 5, which is used as a cap for a container for storing contents containing a solid and a viscous body.

9. A container comprising the hinge cap according to any one of claims 1 to 5 and a container body.

10. A container containing a content, comprising the container according to claim 9 and a content.

11. 11. The container according to claim 10, wherein the contents include a solid and a viscous body.

12. 12. The container according to claim 11, wherein the content is toothpaste, food, cosmetics, or medicine.

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